diff options
Diffstat (limited to 'src')
81 files changed, 23507 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am new file mode 100644 index 0000000..517d854 --- /dev/null +++ b/src/Makefile.am @@ -0,0 +1,37 @@ +lib_LTLIBRARIES = libjrtp.la +libjrtp_la_SOURCES = rtpdebug.cpp rtpsession.cpp rtpconfig_win.h \ + rtperrors.cpp rtpudpv4transmitter.cpp \ + rtcpsdesinfo.cpp rtppollthread.cpp rtppacket.cpp \ + rtppacketbuilder.cpp rtpsessionparams.cpp \ + rtpsources.cpp rtpinternalsourcedata.cpp \ + rtpsourcedata.cpp rtpipv4address.cpp \ + rtcpcompoundpacket.cpp \ + rtcpapppacket.cpp rtcpbyepacket.cpp \ + rtcprrpacket.cpp rtcpsdespacket.cpp \ + rtcpsrpacket.cpp rtplibraryversion.cpp \ + rtcppacket.cpp rtcpcompoundpacketbuilder.cpp \ + rtprandom.cpp rtcpscheduler.cpp \ + rtcppacketbuilder.cpp rtpsessionsources.cpp \ + rtpcollisionlist.cpp rtpipv6address.cpp \ + rtpudpv6transmitter.cpp rtptimeutilities.cpp \ + extratransmitters/rtpfaketransmitter.cpp +libjrtp_la_LDFLAGS = -release @VERSION@ @RTP_LINKLIBS@ +libjrtpinclude_HEADERS = rtcpapppacket.h rtcpbyepacket.h rtcpcompoundpacket.h \ + rtcpcompoundpacketbuilder.h rtcppacket.h rtcppacketbuilder.h \ + rtcprrpacket.h rtcpscheduler.h rtcpsdesinfo.h rtcpsdespacket.h \ + rtcpsrpacket.h rtcpunknownpacket.h rtpaddress.h rtpconfig.h \ + rtpconfig_win.h rtpdebug.h rtpdefines.h rtperrors.h rtphashtable.h \ + rtpconfig_unix.h rtpinternalsourcedata.h rtpipv4address.h \ + rtpipv4destination.h rtpkeyhashtable.h rtplibraryversion.h rtppacket.h \ + rtppacketbuilder.h rtppollthread.h rtprandom.h rtprawpacket.h \ + rtpsession.h rtpsessionparams.h rtpsourcedata.h rtpsources.h \ + rtpstructs.h rtptimeutilities.h rtptransmitter.h \ + rtptypes_win.h rtpudpv4transmitter.h rtpsessionsources.h \ + rtpcollisionlist.h rtpipv6address.h rtpipv6destination.h \ + rtpudpv6transmitter.h rtptypes.h rtptypes_unix.h \ + rtpmemorymanager.h rtpmemoryobject.h \ + extratransmitters/rtpfaketransmitter.h +EXTRA_DIST = rtpconfig_unix.h.in +libjrtpincludedir = ${includedir}/jrtplib3 +INCLUDES = @RTP_JTHREADINCLUDES@ + diff --git a/src/Makefile.in b/src/Makefile.in new file mode 100644 index 0000000..cc8ca9f --- /dev/null +++ b/src/Makefile.in @@ -0,0 +1,590 @@ +# Makefile.in generated by automake 1.9.6 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005 Free Software Foundation, Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +top_builddir = .. +am__cd = 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mostlyclean-libtool pdf pdf-am ps ps-am tags uninstall \ + uninstall-am uninstall-info-am uninstall-libLTLIBRARIES \ + uninstall-libjrtpincludeHEADERS + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/src/extratransmitters/rtpfaketransmitter.cpp b/src/extratransmitters/rtpfaketransmitter.cpp new file mode 100644 index 0000000..33f66d2 --- /dev/null +++ b/src/extratransmitters/rtpfaketransmitter.cpp @@ -0,0 +1,1713 @@ +/* + + This class allows for jrtp to process packets without sending them out + anywhere. + The incoming messages are handed in to jrtp through the TransmissionParams + and can be retreived from jrtp through the normal polling mecanisms. + The outgoing RTP/RTCP packets are given to jrtp through the normal + session->SendPacket() and those packets are handed back out to the + client through a callback function (packet_ready_cb). + + example usage : Allows for integration of RTP into gstreamer. + + THIS HAS NOT BEEN TESTED WITH THREADS SO DON'T TRY + + Copyright (c) 2005 Philippe Khalaf <burger@speedy.org> + + This file is a part of JRTPLIB + Copyright (c) 1999-2004 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.luc.ac.be), a research center of the "Limburgs Universitair + Centrum" (http://www.luc.ac.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpfaketransmitter.h" + +#include "rtprawpacket.h" +#include "rtpipv4address.h" +#include "rtptimeutilities.h" +#include <stdio.h> + +#include <sys/socket.h> +#include <net/if.h> +#include <string.h> +#include <netdb.h> +#include <unistd.h> + +#ifdef RTP_HAVE_SYS_FILIO +#include <sys/filio.h> +#endif // RTP_HAVE_SYS_FILIO + +#define RTPIOCTL ioctl + +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +#define RTPFAKETRANS_MAXPACKSIZE 65535 +#define RTPFAKETRANS_IFREQBUFSIZE 8192 + +//#define RTPFAKETRANS_IS_MCASTADDR(x) (((x)&0xF0000000) == 0xE0000000) + +/*#define RTPFAKETRANS_MCASTMEMBERSHIP(socket,type,mcastip,status) {\ + struct ip_mreq mreq;\ + \ + mreq.imr_multiaddr.s_addr = htonl(mcastip);\ + mreq.imr_interface.s_addr = htonl(bindIP);\ + status = setsockopt(socket,IPPROTO_IP,type,(const char *)&mreq,sizeof(struct ip_mreq));\ + }*/ +#ifdef RTP_SUPPORT_THREAD + #define MAINMUTEX_LOCK { if (threadsafe) mainmutex.Lock(); } + #define MAINMUTEX_UNLOCK { if (threadsafe) mainmutex.Unlock(); } + #define WAITMUTEX_LOCK { if (threadsafe) waitmutex.Lock(); } + #define WAITMUTEX_UNLOCK { if (threadsafe) waitmutex.Unlock(); } +#else + #define MAINMUTEX_LOCK + #define MAINMUTEX_UNLOCK + #define WAITMUTEX_LOCK + #define WAITMUTEX_UNLOCK +#endif // RTP_SUPPORT_THREAD + +RTPFakeTransmitter::RTPFakeTransmitter(RTPMemoryManager *mgr ) : RTPTransmitter(mgr), destinations(mgr,RTPMEM_TYPE_CLASS_DESTINATIONLISTHASHELEMENT),acceptignoreinfo(mgr,RTPMEM_TYPE_CLASS_ACCEPTIGNOREHASHELEMENT) +{ + created = false; + init = false; +} + +RTPFakeTransmitter::~RTPFakeTransmitter() +{ + Destroy(); +} + +int RTPFakeTransmitter::Init(bool tsafe) +{ + if (init) + return ERR_RTP_FAKETRANS_ALREADYINIT; + + // bomb out if trying to use threads + if (tsafe) + return ERR_RTP_NOTHREADSUPPORT; + +#ifdef RTP_SUPPORT_THREAD + threadsafe = tsafe; + if (threadsafe) + { + int status; + + status = mainmutex.Init(); + if (status < 0) + return ERR_RTP_FAKETRANS_CANTINITMUTEX; + status = waitmutex.Init(); + if (status < 0) + return ERR_RTP_FAKETRANS_CANTINITMUTEX; + } +#else + if (tsafe) + return ERR_RTP_NOTHREADSUPPORT; +#endif // RTP_SUPPORT_THREAD + + init = true; + return 0; +} + +int RTPFakeTransmitter::Create(size_t maximumpacketsize,const RTPTransmissionParams *transparams) +{ +// struct sockaddr_in addr; +// int status; + + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_ALREADYCREATED; + } + + // Obtain transmission parameters + + if (transparams == 0) + params = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) RTPFakeTransmissionParams; + else + { + if (transparams->GetTransmissionProtocol() != RTPTransmitter::UserDefinedProto) + return ERR_RTP_FAKETRANS_ILLEGALPARAMETERS; + params = (RTPFakeTransmissionParams *)transparams; + } + + // Check if portbase is even + //if (params->GetPortbase()%2 != 0) + //{ + // MAINMUTEX_UNLOCK + // return ERR_RTP_FAKETRANS_PORTBASENOTEVEN; + //} + + // Try to obtain local IP addresses + + localIPs = params->GetLocalIPList(); + if (localIPs.empty()) // User did not provide list of local IP addresses, calculate them + { + int status; + + if ((status = CreateLocalIPList()) < 0) + { + MAINMUTEX_UNLOCK + return status; + } +#ifdef RTPDEBUG + std::cout << "Found these local IP addresses:" << std::endl; + + std::list<uint32_t>::const_iterator it; + + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + RTPIPv4Address a(*it); + + std::cout << a.GetAddressString() << std::endl; + } +#endif // RTPDEBUG + } + +//#ifdef RTP_SUPPORT_IPV4MULTICAST +// if (SetMulticastTTL(params->GetMulticastTTL())) +// supportsmulticasting = true; +// else +// supportsmulticasting = false; +//#else // no multicast support enabled + supportsmulticasting = false; +//#endif // RTP_SUPPORT_IPV4MULTICAST + + if (maximumpacketsize > RTPFAKETRANS_MAXPACKSIZE) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_SPECIFIEDSIZETOOBIG; + } + + maxpacksize = maximumpacketsize; + portbase = params->GetPortbase(); + multicastTTL = params->GetMulticastTTL(); + receivemode = RTPTransmitter::AcceptAll; + + localhostname = 0; + localhostnamelength = 0; + + waitingfordata = false; + created = true; + + MAINMUTEX_UNLOCK + return 0; +} + +void RTPFakeTransmitter::Destroy() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK; + return; + } + + if (localhostname) + { + RTPDeleteByteArray(localhostname,GetMemoryManager()); + localhostname = 0; + localhostnamelength = 0; + } + + destinations.Clear(); +#ifdef RTP_SUPPORT_IPV4MULTICAST +// multicastgroups.Clear(); +#endif // RTP_SUPPORT_IPV4MULTICAST + FlushPackets(); + ClearAcceptIgnoreInfo(); + localIPs.clear(); + created = false; + RTPDelete(params,GetMemoryManager()); + + MAINMUTEX_UNLOCK +} + +RTPTransmissionInfo *RTPFakeTransmitter::GetTransmissionInfo() +{ + if (!init) + return 0; + + MAINMUTEX_LOCK + RTPTransmissionInfo *tinf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPTRANSMISSIONINFO) RTPFakeTransmissionInfo(localIPs, params); + MAINMUTEX_UNLOCK + return tinf; +} + +int RTPFakeTransmitter::GetLocalHostName(uint8_t *buffer,size_t *bufferlength) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + + if (localhostname == 0) + { + if (localIPs.empty()) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOLOCALIPS; + } + + std::list<uint32_t>::const_iterator it; + std::list<std::string> hostnames; + + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + struct hostent *he; + uint8_t addr[4]; + uint32_t ip = (*it); + + addr[0] = (uint8_t)((ip>>24)&0xFF); + addr[1] = (uint8_t)((ip>>16)&0xFF); + addr[2] = (uint8_t)((ip>>8)&0xFF); + addr[3] = (uint8_t)(ip&0xFF); + he = gethostbyaddr((char *)addr,4,AF_INET); + if (he != 0) + { + std::string hname = std::string(he->h_name); + hostnames.push_back(hname); + } + } + + bool found = false; + + if (!hostnames.empty()) // try to select the most appropriate hostname + { + std::list<std::string>::const_iterator it; + + for (it = hostnames.begin() ; !found && it != hostnames.end() ; it++) + { + if ((*it).find('.') != std::string::npos) + { + found = true; + localhostnamelength = (*it).length(); + localhostname = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) uint8_t [localhostnamelength+1]; + if (localhostname == 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_OUTOFMEM; + } + memcpy(localhostname,(*it).c_str(),localhostnamelength); + localhostname[localhostnamelength] = 0; + } + } + } + + if (!found) // use an IP address + { + uint32_t ip; + int len; + char str[16]; + + it = localIPs.begin(); + ip = (*it); + + snprintf(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + len = strlen(str); + + localhostnamelength = len; + localhostname = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) uint8_t [localhostnamelength + 1]; + if (localhostname == 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_OUTOFMEM; + } + memcpy(localhostname,str,localhostnamelength); + localhostname[localhostnamelength] = 0; + } + } + + if ((*bufferlength) < localhostnamelength) + { + *bufferlength = localhostnamelength; // tell the application the required size of the buffer + MAINMUTEX_UNLOCK + return ERR_RTP_TRANS_BUFFERLENGTHTOOSMALL; + } + + memcpy(buffer,localhostname,localhostnamelength); + *bufferlength = localhostnamelength; + + MAINMUTEX_UNLOCK + return 0; +} + +bool RTPFakeTransmitter::ComesFromThisTransmitter(const RTPAddress *addr) +{ + if (!init) + return false; + + if (addr == 0) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (created && addr->GetAddressType() == RTPAddress::IPv4Address) + { + const RTPIPv4Address *addr2 = (const RTPIPv4Address *)addr; + bool found = false; + std::list<uint32_t>::const_iterator it; + + it = localIPs.begin(); + while (!found && it != localIPs.end()) + { + if (addr2->GetIP() == *it) + found = true; + else + ++it; + } + + if (!found) + v = false; + else + { + if (addr2->GetPort() == params->GetPortbase()) // check for RTP port + v = true; + else if (addr2->GetPort() == (params->GetPortbase()+1)) // check for RTCP port + v = true; + else + v = false; + } + } + else + v = false; + + MAINMUTEX_UNLOCK + return v; +} + +int RTPFakeTransmitter::Poll() +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + int status; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + status = FakePoll(); // poll RTP socket + params->SetCurrentData(NULL); + MAINMUTEX_UNLOCK + return status; +} + +int RTPFakeTransmitter::WaitForIncomingData(const RTPTime &delay,bool *dataavailable) +{ +/* if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + fd_set fdset; + struct timeval tv; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (waitingfordata) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_ALREADYWAITING; + } + + FD_ZERO(&fdset); + FD_SET(rtpsock,&fdset); + FD_SET(rtcpsock,&fdset); + FD_SET(abortdesc[0],&fdset); + tv.tv_sec = delay.GetSeconds(); + tv.tv_usec = delay.GetMicroSeconds(); + + waitingfordata = true; + + WAITMUTEX_LOCK + MAINMUTEX_UNLOCK + + if (select(FD_SETSIZE,&fdset,0,0,&tv) < 0) + { + MAINMUTEX_LOCK + waitingfordata = false; + MAINMUTEX_UNLOCK + WAITMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_ERRORINSELECT; + } + + MAINMUTEX_LOCK + waitingfordata = false; + if (!created) // destroy called + { + MAINMUTEX_UNLOCK; + WAITMUTEX_UNLOCK + return 0; + } + + // if aborted, read from abort buffer + if (FD_ISSET(abortdesc[0],&fdset)) + { +#ifdef WIN32 + char buf[1]; + + recv(abortdesc[0],buf,1,0); +#else + unsigned char buf[1]; + + read(abortdesc[0],buf,1); +#endif // WIN32 + } + + MAINMUTEX_UNLOCK + WAITMUTEX_UNLOCK + return 0;*/ + return ERR_RTP_FAKETRANS_WAITNOTIMPLEMENTED; +} + +int RTPFakeTransmitter::AbortWait() +{ +/* if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (!waitingfordata) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTWAITING; + } + + AbortWaitInternal(); + + MAINMUTEX_UNLOCK + return 0;*/ + return 0; +} + +int RTPFakeTransmitter::SendRTPData(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (len > maxpacksize) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_SPECIFIEDSIZETOOBIG; + } + + + destinations.GotoFirstElement(); + // send to each destination + while (destinations.HasCurrentElement()) + { + (*params->GetPacketReadyCB())(params->GetPacketReadyCBData(), (uint8_t*)data, len, + destinations.GetCurrentElement().GetIP_NBO(), + destinations.GetCurrentElement().GetRTPPort_NBO(), + 1); + destinations.GotoNextElement(); + } + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPFakeTransmitter::SendRTCPData(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (len > maxpacksize) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_SPECIFIEDSIZETOOBIG; + } + + destinations.GotoFirstElement(); + // send to each destination + while (destinations.HasCurrentElement()) + { + (*params->GetPacketReadyCB())(params->GetPacketReadyCBData(), (uint8_t*)data, len, + destinations.GetCurrentElement().GetIP_NBO(), + destinations.GetCurrentElement().GetRTCPPort_NBO(), + 0); + destinations.GotoNextElement(); + } + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPFakeTransmitter::AddDestination(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + + RTPIPv4Address &address = (RTPIPv4Address &)addr; + RTPIPv4Destination dest(address.GetIP(),address.GetPort()); + int status = destinations.AddElement(dest); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPFakeTransmitter::DeleteDestination(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + + RTPIPv4Address &address = (RTPIPv4Address &)addr; + RTPIPv4Destination dest(address.GetIP(),address.GetPort()); + int status = destinations.DeleteElement(dest); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPFakeTransmitter::ClearDestinations() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created) + destinations.Clear(); + MAINMUTEX_UNLOCK +} + +bool RTPFakeTransmitter::SupportsMulticasting() +{ + if (!init) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (!created) + v = false; + else + v = supportsmulticasting; + + MAINMUTEX_UNLOCK + return v; +} + +#ifdef RTP_SUPPORT_IPV4MULTICAST + +int RTPFakeTransmitter::JoinMulticastGroup(const RTPAddress &addr) +{ +// hrrm wonder how will manage to get multicast info thru to the UDPSINK +/* if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + uint32_t mcastIP = address.GetIP(); + + if (!RTPFakeTRANS_IS_MCASTADDR(mcastIP)) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTAMULTICASTADDRESS; + } + + status = multicastgroups.AddElement(mcastIP); + if (status >= 0) + { + RTPFakeTRANS_MCASTMEMBERSHIP(rtpsock,IP_ADD_MEMBERSHIP,mcastIP,status); + if (status != 0) + { + multicastgroups.DeleteElement(mcastIP); + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_COULDNTJOINMULTICASTGROUP; + } + RTPFakeTRANS_MCASTMEMBERSHIP(rtcpsock,IP_ADD_MEMBERSHIP,mcastIP,status); + if (status != 0) + { + RTPFakeTRANS_MCASTMEMBERSHIP(rtpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + multicastgroups.DeleteElement(mcastIP); + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_COULDNTJOINMULTICASTGROUP; + } + } + MAINMUTEX_UNLOCK + return status;*/ + return ERR_RTP_FAKETRANS_NOMULTICASTSUPPORT; +} + +int RTPFakeTransmitter::LeaveMulticastGroup(const RTPAddress &addr) +{ + /* + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + uint32_t mcastIP = address.GetIP(); + + if (!RTPFakeTRANS_IS_MCASTADDR(mcastIP)) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTAMULTICASTADDRESS; + } + + status = multicastgroups.DeleteElement(mcastIP); + if (status >= 0) + { + RTPFakeTRANS_MCASTMEMBERSHIP(rtpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + RTPFakeTRANS_MCASTMEMBERSHIP(rtcpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + status = 0; + } + + MAINMUTEX_UNLOCK + return status; + */ + return ERR_RTP_FAKETRANS_NOMULTICASTSUPPORT; +} + +void RTPFakeTransmitter::LeaveAllMulticastGroups() +{ +/* if (!init) + return; + + MAINMUTEX_LOCK + if (created) + { + multicastgroups.GotoFirstElement(); + while (multicastgroups.HasCurrentElement()) + { + uint32_t mcastIP; + int status = 0; + + mcastIP = multicastgroups.GetCurrentElement(); + RTPFakeTRANS_MCASTMEMBERSHIP(rtpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + RTPFakeTRANS_MCASTMEMBERSHIP(rtcpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + multicastgroups.GotoNextElement(); + } + multicastgroups.Clear(); + } + MAINMUTEX_UNLOCK*/ +} + +#else // no multicast support + +int RTPFakeTransmitter::JoinMulticastGroup(const RTPAddress &addr) +{ + return ERR_RTP_FAKETRANS_NOMULTICASTSUPPORT; +} + +int RTPFakeTransmitter::LeaveMulticastGroup(const RTPAddress &addr) +{ + return ERR_RTP_FAKETRANS_NOMULTICASTSUPPORT; +} + +void RTPFakeTransmitter::LeaveAllMulticastGroups() +{ +} + +#endif // RTP_SUPPORT_IPV4MULTICAST + +int RTPFakeTransmitter::SetReceiveMode(RTPTransmitter::ReceiveMode m) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (m != receivemode) + { + receivemode = m; + acceptignoreinfo.Clear(); + } + MAINMUTEX_UNLOCK + return 0; +} + +int RTPFakeTransmitter::AddToIgnoreList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::IgnoreSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessAddAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPFakeTransmitter::DeleteFromIgnoreList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::IgnoreSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessDeleteAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPFakeTransmitter::ClearIgnoreList() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created && receivemode == RTPTransmitter::IgnoreSome) + ClearAcceptIgnoreInfo(); + MAINMUTEX_UNLOCK +} + +int RTPFakeTransmitter::AddToAcceptList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::AcceptSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessAddAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPFakeTransmitter::DeleteFromAcceptList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::AcceptSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessDeleteAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPFakeTransmitter::ClearAcceptList() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created && receivemode == RTPTransmitter::AcceptSome) + ClearAcceptIgnoreInfo(); + MAINMUTEX_UNLOCK +} + +int RTPFakeTransmitter::SetMaximumPacketSize(size_t s) +{ + if (!init) + return ERR_RTP_FAKETRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_NOTCREATED; + } + if (s > RTPFAKETRANS_MAXPACKSIZE) + { + MAINMUTEX_UNLOCK + return ERR_RTP_FAKETRANS_SPECIFIEDSIZETOOBIG; + } + maxpacksize = s; + MAINMUTEX_UNLOCK + return 0; +} + +bool RTPFakeTransmitter::NewDataAvailable() +{ + if (!init) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (!created) + v = false; + else + { + if (rawpacketlist.empty()) + v = false; + else + v = true; + } + + MAINMUTEX_UNLOCK + return v; +} + +RTPRawPacket *RTPFakeTransmitter::GetNextPacket() +{ + if (!init) + return 0; + + MAINMUTEX_LOCK + + RTPRawPacket *p; + + if (!created) + { + MAINMUTEX_UNLOCK + return 0; + } + if (rawpacketlist.empty()) + { + MAINMUTEX_UNLOCK + return 0; + } + + p = *(rawpacketlist.begin()); + rawpacketlist.pop_front(); + + MAINMUTEX_UNLOCK + return p; +} + +// Here the private functions start... + +#ifdef RTP_SUPPORT_IPV4MULTICAST +bool RTPFakeTransmitter::SetMulticastTTL(uint8_t ttl) +{ +/* int ttl2,status; + + ttl2 = (int)ttl; + status = setsockopt(rtpsock,IPPROTO_IP,IP_MULTICAST_TTL,(const char *)&ttl2,sizeof(int)); + if (status != 0) + return false; + status = setsockopt(rtcpsock,IPPROTO_IP,IP_MULTICAST_TTL,(const char *)&ttl2,sizeof(int)); + if (status != 0) + return false; + return true;*/ + return true; +} +#endif // RTP_SUPPORT_IPV4MULTICAST + +void RTPFakeTransmitter::FlushPackets() +{ + std::list<RTPRawPacket*>::const_iterator it; + + for (it = rawpacketlist.begin() ; it != rawpacketlist.end() ; ++it) + RTPDelete(*it,GetMemoryManager()); + rawpacketlist.clear(); +} + +int RTPFakeTransmitter::FakePoll() +{ + uint8_t *data = NULL; + int data_len = 0; + uint32_t sourceaddr; + uint16_t sourceport; + bool rtp; + bool acceptdata; + + RTPTime curtime = RTPTime::CurrentTime(); + + data = params->GetCurrentData(); + data_len = params->GetCurrentDataLen(); + rtp = params->GetCurrentDataType(); + sourceaddr = params->GetCurrentDataAddr(); + sourceport = params->GetCurrentDataPort(); + // lets make sure we got something + if (data == NULL || data_len <= 0) + { + return 0; + } + + // let's make a RTPIPv4Address + RTPIPv4Address *addr = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPADDRESS) RTPIPv4Address(sourceaddr, sourceport); + if (addr == 0) + { + return ERR_RTP_OUTOFMEM; + } + + // ok we got the src addr, now this should be the actual packet + uint8_t *datacopy; + datacopy = RTPNew(GetMemoryManager(),(rtp)?RTPMEM_TYPE_BUFFER_RECEIVEDRTPPACKET:RTPMEM_TYPE_BUFFER_RECEIVEDRTCPPACKET) uint8_t[data_len]; + if (datacopy == 0) + { + RTPDelete(addr,GetMemoryManager()); + return ERR_RTP_OUTOFMEM; + } + memcpy(datacopy, data, data_len); + + // got data, process it + if (receivemode == RTPTransmitter::AcceptAll) + acceptdata = true; + else + acceptdata = ShouldAcceptData(addr->GetIP(),addr->GetPort()); + + if (acceptdata) + { + // adding packet to queue + RTPRawPacket *pack; + + pack = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPRAWPACKET) RTPRawPacket(datacopy,data_len,addr,curtime,rtp,GetMemoryManager()); + + if (pack == 0) + { + RTPDelete(addr,GetMemoryManager()); + return ERR_RTP_OUTOFMEM; + } + rawpacketlist.push_back(pack); + } + return 0; +} + +int RTPFakeTransmitter::ProcessAddAcceptIgnoreEntry(uint32_t ip,uint16_t port) +{ + acceptignoreinfo.GotoElement(ip); + if (acceptignoreinfo.HasCurrentElement()) // An entry for this IP address already exists + { + PortInfo *portinf = acceptignoreinfo.GetCurrentElement(); + + if (port == 0) // select all ports + { + portinf->all = true; + portinf->portlist.clear(); + } + else if (!portinf->all) + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = portinf->portlist.begin(); + end = portinf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == port) // already in list + return 0; + } + portinf->portlist.push_front(port); + } + } + else // got to create an entry for this IP address + { + PortInfo *portinf; + int status; + + portinf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_ACCEPTIGNOREPORTINFO) PortInfo(); + if (port == 0) // select all ports + portinf->all = true; + else + portinf->portlist.push_front(port); + + status = acceptignoreinfo.AddElement(ip,portinf); + if (status < 0) + { + RTPDelete(portinf,GetMemoryManager()); + return status; + } + } + + return 0; +} + +void RTPFakeTransmitter::ClearAcceptIgnoreInfo() +{ + acceptignoreinfo.GotoFirstElement(); + while (acceptignoreinfo.HasCurrentElement()) + { + PortInfo *inf; + + inf = acceptignoreinfo.GetCurrentElement(); + RTPDelete(inf,GetMemoryManager()); + acceptignoreinfo.GotoNextElement(); + } + acceptignoreinfo.Clear(); +} + +int RTPFakeTransmitter::ProcessDeleteAcceptIgnoreEntry(uint32_t ip,uint16_t port) +{ + acceptignoreinfo.GotoElement(ip); + if (!acceptignoreinfo.HasCurrentElement()) + return ERR_RTP_FAKETRANS_NOSUCHENTRY; + + PortInfo *inf; + + inf = acceptignoreinfo.GetCurrentElement(); + if (port == 0) // delete all entries + { + inf->all = false; + inf->portlist.clear(); + } + else // a specific port was selected + { + if (inf->all) // currently, all ports are selected. Add the one to remove to the list + { + // we have to check if the list doesn't contain the port already + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == port) // already in list: this means we already deleted the entry + return ERR_RTP_FAKETRANS_NOSUCHENTRY; + } + inf->portlist.push_front(port); + } + else // check if we can find the port in the list + { + std::list<uint16_t>::iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; ++it) + { + if (*it == port) // found it! + { + inf->portlist.erase(it); + return 0; + } + } + // didn't find it + return ERR_RTP_FAKETRANS_NOSUCHENTRY; + } + } + return 0; +} + +bool RTPFakeTransmitter::ShouldAcceptData(uint32_t srcip,uint16_t srcport) +{ + if (receivemode == RTPTransmitter::AcceptSome) + { + PortInfo *inf; + + acceptignoreinfo.GotoElement(srcip); + if (!acceptignoreinfo.HasCurrentElement()) + return false; + + inf = acceptignoreinfo.GetCurrentElement(); + if (!inf->all) // only accept the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return true; + } + return false; + } + else // accept all, except the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return false; + } + return true; + } + } + else // IgnoreSome + { + PortInfo *inf; + + acceptignoreinfo.GotoElement(srcip); + if (!acceptignoreinfo.HasCurrentElement()) + return true; + + inf = acceptignoreinfo.GetCurrentElement(); + if (!inf->all) // ignore the ports in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return false; + } + return true; + } + else // ignore all, except the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return true; + } + return false; + } + } + return true; +} + +#ifdef WIN32 + +int RTPFakeTransmitter::CreateAbortDescriptors() +{ + // no need for these no more +/* + SOCKET listensock; + int size; + struct sockaddr_in addr; + + listensock = socket(PF_INET,SOCK_STREAM,0); + if (listensock == RTPSOCKERR) + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + if (bind(listensock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(listensock); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + size = sizeof(struct sockaddr_in); + if (getsockname(listensock,(struct sockaddr*)&addr,&size) != 0) + { + RTPCLOSE(listensock); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + unsigned short connectport = ntohs(addr.sin_port); + + abortdesc[0] = socket(PF_INET,SOCK_STREAM,0); + if (abortdesc[0] == RTPSOCKERR) + { + RTPCLOSE(listensock); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + if (bind(abortdesc[0],(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + if (listen(listensock,1) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + addr.sin_addr.s_addr = inet_addr("127.0.0.1"); + addr.sin_port = htons(connectport); + + if (connect(abortdesc[0],(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + size = sizeof(struct sockaddr_in); + abortdesc[1] = accept(listensock,(struct sockaddr *)&addr,&size); + if (abortdesc[1] == RTPSOCKERR) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS; + } + + // okay, got the connection, close the listening socket + + RTPCLOSE(listensock); + return 0;*/ +} + +void RTPFakeTransmitter::DestroyAbortDescriptors() +{ +// RTPCLOSE(abortdesc[0]); +// RTPCLOSE(abortdesc[1]); +} + +#else // in a non winsock environment we can use pipes + +int RTPFakeTransmitter::CreateAbortDescriptors() +{ +// if (pipe(abortdesc) < 0) +// return ERR_RTP_FAKETRANS_CANTCREATEPIPE; +// return 0; + return 0; +} + +void RTPFakeTransmitter::DestroyAbortDescriptors() +{ +// close(abortdesc[0]); +// close(abortdesc[1]); +} + +#endif // WIN32 + +int RTPFakeTransmitter::CreateLocalIPList() +{ + // first try to obtain the list from the network interface info + + if (!GetLocalIPList_Interfaces()) + { + // If this fails, we'll have to depend on DNS info + GetLocalIPList_DNS(); + } + AddLoopbackAddress(); + return 0; +} + +//#ifdef WIN32 + +bool RTPFakeTransmitter::GetLocalIPList_Interfaces() +{ + // REMINDER: got to find out how to do this + return false; +} +/* +#else // use ioctl + +bool RTPFakeTransmitter::GetLocalIPList_Interfaces() +{ + int status; + char buffer[RTPFakeTRANS_IFREQBUFSIZE]; + struct ifconf ifc; + struct ifreq *ifr; + struct sockaddr *sa; + char *startptr,*endptr; + int remlen; + + ifc.ifc_len = RTPFakeTRANS_IFREQBUFSIZE; + ifc.ifc_buf = buffer; + status = ioctl(rtpsock,SIOCGIFCONF,&ifc); + if (status < 0) + return false; + + startptr = (char *)ifc.ifc_req; + endptr = startptr + ifc.ifc_len; + remlen = ifc.ifc_len; + while((startptr < endptr) && remlen >= (int)sizeof(struct ifreq)) + { + ifr = (struct ifreq *)startptr; + sa = &(ifr->ifr_addr); +#ifdef RTP_HAVE_SOCKADDR_LEN + if (sa->sa_len <= sizeof(struct sockaddr)) + { + if (sa->sa_len == sizeof(struct sockaddr_in) && sa->sa_family == PF_INET) + { + uint32_t ip; + struct sockaddr_in *addr = (struct sockaddr_in *)sa; + + ip = ntohl(addr->sin_addr.s_addr); + localIPs.push_back(ip); + } + remlen -= sizeof(struct ifreq); + startptr += sizeof(struct ifreq); + } + else + { + int l = sa->sa_len-sizeof(struct sockaddr)+sizeof(struct ifreq); + + remlen -= l; + startptr += l; + } +#else // don't have sa_len in struct sockaddr + if (sa->sa_family == PF_INET) + { + uint32_t ip; + struct sockaddr_in *addr = (struct sockaddr_in *)sa; + + ip = ntohl(addr->sin_addr.s_addr); + localIPs.push_back(ip); + } + remlen -= sizeof(struct ifreq); + startptr += sizeof(struct ifreq); + +#endif // RTP_HAVE_SOCKADDR_LEN + } + + if (localIPs.empty()) + return false; + return true; +} + +#endif // WIN32 +*/ +void RTPFakeTransmitter::GetLocalIPList_DNS() +{ + struct hostent *he; + char name[1024]; + uint32_t ip; + bool done; + int i,j; + + gethostname(name,1023); + name[1023] = 0; + he = gethostbyname(name); + if (he == 0) + return; + + ip = 0; + i = 0; + done = false; + while (!done) + { + if (he->h_addr_list[i] == NULL) + done = true; + else + { + ip = 0; + for (j = 0 ; j < 4 ; j++) + ip |= ((uint32_t)((unsigned char)he->h_addr_list[i][j])<<((3-j)*8)); + localIPs.push_back(ip); + i++; + } + } +} + +void RTPFakeTransmitter::AbortWaitInternal() +{ +/*#ifdef WIN32 + send(abortdesc[1],"*",1,0); +#else + write(abortdesc[1],"*",1); +#endif // WIN32*/ +} + +void RTPFakeTransmitter::AddLoopbackAddress() +{ + uint32_t loopbackaddr = (((uint32_t)127)<<24)|((uint32_t)1); + std::list<uint32_t>::const_iterator it; + bool found = false; + + for (it = localIPs.begin() ; !found && it != localIPs.end() ; it++) + { + if (*it == loopbackaddr) + found = true; + } + + if (!found) + localIPs.push_back(loopbackaddr); +} + +#ifdef RTPDEBUG +void RTPFakeTransmitter::Dump() +{ + if (!init) + std::cout << "Not initialized" << std::endl; + else + { + MAINMUTEX_LOCK + + if (!created) + std::cout << "Not created" << std::endl; + else + { + char str[16]; + uint32_t ip; + std::list<uint32_t>::const_iterator it; + + std::cout << "Portbase: " << params->GetPortbase() << std::endl; + std::cout << "Local IP addresses:" << std::endl; + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + ip = (*it); + snprintf(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + std::cout << " " << str << std::endl; + } +// std::cout << "Multicast TTL: " << (int)multicastTTL << std::endl; + std::cout << "Receive mode: "; + switch (receivemode) + { + case RTPTransmitter::AcceptAll: + std::cout << "Accept all"; + break; + case RTPTransmitter::AcceptSome: + std::cout << "Accept some"; + break; + case RTPTransmitter::IgnoreSome: + std::cout << "Ignore some"; + } + std::cout << std::endl; + if (receivemode != RTPTransmitter::AcceptAll) + { + acceptignoreinfo.GotoFirstElement(); + while(acceptignoreinfo.HasCurrentElement()) + { + ip = acceptignoreinfo.GetCurrentKey(); + snprintf(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + PortInfo *pinfo = acceptignoreinfo.GetCurrentElement(); + std::cout << " " << str << ": "; + if (pinfo->all) + { + std::cout << "All ports"; + if (!pinfo->portlist.empty()) + std::cout << ", except "; + } + + std::list<uint16_t>::const_iterator it; + + for (it = pinfo->portlist.begin() ; it != pinfo->portlist.end() ; ) + { + std::cout << (*it); + it++; + if (it != pinfo->portlist.end()) + std::cout << ", "; + } + std::cout << std::endl; + } + } + + std::cout << "Local host name: "; + if (localhostname == 0) + std::cout << "Not set"; + else + std::cout << localhostname; + std::cout << std::endl; + + std::cout << "List of destinations: "; + destinations.GotoFirstElement(); + if (destinations.HasCurrentElement()) + { + std::cout << std::endl; + do + { + std::cout << " " << destinations.GetCurrentElement().GetDestinationString() << std::endl; + destinations.GotoNextElement(); + } while (destinations.HasCurrentElement()); + } + else + std::cout << "Empty" << std::endl; + + std::cout << "Supports multicasting: " << ((supportsmulticasting)?"Yes":"No") << std::endl; +#ifdef RTP_SUPPORT_IPV4MULTICAST +/* std::cout << "List of multicast groups: "; + multicastgroups.GotoFirstElement(); + if (multicastgroups.HasCurrentElement()) + { + std::cout << std::endl; + do + { + ip = multicastgroups.GetCurrentElement(); + snprintf(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + std::cout << " " << str << std::endl; + multicastgroups.GotoNextElement(); + } while (multicastgroups.HasCurrentElement()); + } + else + std::cout << "Empty" << std::endl;*/ +#endif // RTP_SUPPORT_IPV4MULTICAST + + std::cout << "Number of raw packets in queue: " << rawpacketlist.size() << std::endl; + std::cout << "Maximum allowed packet size: " << maxpacksize << std::endl; + } + + MAINMUTEX_UNLOCK + } +} +#endif // RTPDEBUG diff --git a/src/extratransmitters/rtpfaketransmitter.h b/src/extratransmitters/rtpfaketransmitter.h new file mode 100644 index 0000000..88b445e --- /dev/null +++ b/src/extratransmitters/rtpfaketransmitter.h @@ -0,0 +1,241 @@ +/* + + This class allows for jrtp to process packets without sending them out + anywhere. + The incoming messages are handed in to jrtp through the TransmissionParams + and can be retreived from jrtp through the normal polling mecanisms. + The outgoing RTP/RTCP packets are given to jrtp through the normal + session->SendPacket() and those packets are handed back out to the + client through a callback function (packet_ready_cb). + + example usage : Allows for integration of RTP into gstreamer. + + Copyright (c) 2005 Philippe Khalaf <burger@speedy.org> + + This file is a part of JRTPLIB + Copyright (c) 1999-2004 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.luc.ac.be), a research center of the "Limburgs Universitair + Centrum" (http://www.luc.ac.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPFAKETRANSMITTER_H + +#define RTPFAKETRANSMITTER_H + +#include "rtpconfig.h" + +#include "rtptransmitter.h" +#include "rtpipv4destination.h" +#include "rtphashtable.h" +#include "rtpkeyhashtable.h" +#include <list> + +#ifdef RTP_SUPPORT_THREAD + #include <jmutex.h> +#endif // RTP_SUPPORT_THREAD + +#define RTPFAKETRANS_HASHSIZE 8317 +#define RTPFAKETRANS_DEFAULTPORTBASE 5000 + +// Definition of a callback that is called when a packet is ready for sending +// params (*data, data_len, dest_addr, dest_port, rtp [1 if rtp, 0 if rtcp]) +typedef void(*packet_ready_cb)(void*, uint8_t*, uint16_t, uint32_t, uint16_t, int rtp); + +class RTPFakeTransmissionParams : public RTPTransmissionParams +{ +public: + RTPFakeTransmissionParams():RTPTransmissionParams(RTPTransmitter::UserDefinedProto) { portbase = RTPFAKETRANS_DEFAULTPORTBASE; bindIP = 0; multicastTTL = 1; currentdata = NULL;} + void SetBindIP(uint32_t ip) { bindIP = ip; } + void SetPortbase(uint16_t pbase) { portbase = pbase; } + void SetMulticastTTL(uint8_t mcastTTL) { multicastTTL = mcastTTL; } + void SetLocalIPList(std::list<uint32_t> &iplist) { localIPs = iplist; } + void ClearLocalIPList() { localIPs.clear(); } + void SetCurrentData(uint8_t *data) { currentdata = data; } + void SetCurrentDataLen(uint16_t len) { currentdatalen = len; } + void SetCurrentDataAddr(uint32_t addr) { currentdataaddr = addr; } + void SetCurrentDataPort(uint16_t port) { currentdataport = port; } + void SetCurrentDataType(bool type) { currentdatatype = type; } + void SetPacketReadyCB(packet_ready_cb cb) { packetreadycb = cb; }; + void SetPacketReadyCBData(void *data) { packetreadycbdata = data; }; + uint32_t GetBindIP() const { return bindIP; } + uint16_t GetPortbase() const { return portbase; } + uint8_t GetMulticastTTL() const { return multicastTTL; } + const std::list<uint32_t> &GetLocalIPList() const { return localIPs; } + uint8_t* GetCurrentData() const { return currentdata; } + uint16_t GetCurrentDataLen() const { return currentdatalen; } + uint32_t GetCurrentDataAddr() const { return currentdataaddr; } + uint16_t GetCurrentDataPort() const { return currentdataport; } + bool GetCurrentDataType() const { return currentdatatype; } + packet_ready_cb GetPacketReadyCB() const { return packetreadycb; } + void* GetPacketReadyCBData() const { return packetreadycbdata; } +private: + uint16_t portbase; + uint32_t bindIP; + std::list<uint32_t> localIPs; + uint8_t multicastTTL; + uint8_t* currentdata; + uint16_t currentdatalen; + uint32_t currentdataaddr; + uint16_t currentdataport; + bool currentdatatype; + packet_ready_cb packetreadycb; + void *packetreadycbdata; +}; + +class RTPFakeTransmissionInfo : public RTPTransmissionInfo +{ +public: + RTPFakeTransmissionInfo(std::list<uint32_t> iplist, + RTPFakeTransmissionParams *transparams) : + RTPTransmissionInfo(RTPTransmitter::UserDefinedProto) + { localIPlist = iplist; params = transparams; } + + ~RTPFakeTransmissionInfo() { } + std::list<uint32_t> GetLocalIPList() const { return localIPlist; } + RTPFakeTransmissionParams* GetTransParams() { return params; } +private: + std::list<uint32_t> localIPlist; + RTPFakeTransmissionParams *params; +}; + +class RTPFakeTrans_GetHashIndex_IPv4Dest +{ +public: + static int GetIndex(const RTPIPv4Destination &d) { return d.GetIP()%RTPFAKETRANS_HASHSIZE; } +}; + +class RTPFakeTrans_GetHashIndex_uint32_t +{ +public: + static int GetIndex(const uint32_t &k) { return k%RTPFAKETRANS_HASHSIZE; } +}; + +#define RTPFAKETRANS_HEADERSIZE (20+8) + +class RTPFakeTransmitter : public RTPTransmitter +{ +public: + RTPFakeTransmitter(RTPMemoryManager *mgr); + ~RTPFakeTransmitter(); + + int Init(bool treadsafe); + int Create(size_t maxpacksize,const RTPTransmissionParams *transparams); + void Destroy(); + RTPTransmissionInfo *GetTransmissionInfo(); + + int GetLocalHostName(uint8_t *buffer,size_t *bufferlength); + bool ComesFromThisTransmitter(const RTPAddress *addr); + size_t GetHeaderOverhead() { return RTPFAKETRANS_HEADERSIZE; } + + int Poll(); + int WaitForIncomingData(const RTPTime &delay,bool *dataavailable = 0); + int AbortWait(); + + int SendRTPData(const void *data,size_t len); + int SendRTCPData(const void *data,size_t len); + + int AddDestination(const RTPAddress &addr); + int DeleteDestination(const RTPAddress &addr); + void ClearDestinations(); + + bool SupportsMulticasting(); + int JoinMulticastGroup(const RTPAddress &addr); + int LeaveMulticastGroup(const RTPAddress &addr); + void LeaveAllMulticastGroups(); + + int SetReceiveMode(RTPTransmitter::ReceiveMode m); + int AddToIgnoreList(const RTPAddress &addr); + int DeleteFromIgnoreList(const RTPAddress &addr); + void ClearIgnoreList(); + int AddToAcceptList(const RTPAddress &addr); + int DeleteFromAcceptList(const RTPAddress &addr); + void ClearAcceptList(); + int SetMaximumPacketSize(size_t s); + + bool NewDataAvailable(); + RTPRawPacket *GetNextPacket(); +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + int CreateLocalIPList(); + bool GetLocalIPList_Interfaces(); + void GetLocalIPList_DNS(); + void AddLoopbackAddress(); + void FlushPackets(); + int FakePoll(); + int ProcessAddAcceptIgnoreEntry(uint32_t ip,uint16_t port); + int ProcessDeleteAcceptIgnoreEntry(uint32_t ip,uint16_t port); +#ifdef RTP_SUPPORT_IPV4MULTICAST + bool SetMulticastTTL(uint8_t ttl); +#endif // RTP_SUPPORT_IPV4MULTICAST + bool ShouldAcceptData(uint32_t srcip,uint16_t srcport); + void ClearAcceptIgnoreInfo(); + + RTPFakeTransmissionParams *params; + bool init; + bool created; + bool waitingfordata; + std::list<uint32_t> localIPs; + uint16_t portbase; + uint8_t multicastTTL; + RTPTransmitter::ReceiveMode receivemode; + + uint8_t *localhostname; + size_t localhostnamelength; + + RTPHashTable<const RTPIPv4Destination,RTPFakeTrans_GetHashIndex_IPv4Dest,RTPFAKETRANS_HASHSIZE> destinations; +#ifdef RTP_SUPPORT_IPV4MULTICAST +// RTPHashTable<const uint32_t,RTPFakeTrans_GetHashIndex_uint32_t,RTPFAKETRANS_HASHSIZE> multicastgroups; +#endif // RTP_SUPPORT_IPV4MULTICAST + std::list<RTPRawPacket*> rawpacketlist; + + bool supportsmulticasting; + size_t maxpacksize; + + class PortInfo + { + public: + PortInfo() { all = false; } + + bool all; + std::list<uint16_t> portlist; + }; + + RTPKeyHashTable<const uint32_t,PortInfo*,RTPFakeTrans_GetHashIndex_uint32_t,RTPFAKETRANS_HASHSIZE> acceptignoreinfo; + + int CreateAbortDescriptors(); + void DestroyAbortDescriptors(); + void AbortWaitInternal(); +#ifdef RTP_SUPPORT_THREAD + JMutex mainmutex,waitmutex; + int threadsafe; +#endif // RTP_SUPPORT_THREAD +}; + +#endif // RTPFakeTRANSMITTER_H + diff --git a/src/rtcpapppacket.cpp b/src/rtcpapppacket.cpp new file mode 100644 index 0000000..d7a3904 --- /dev/null +++ b/src/rtcpapppacket.cpp @@ -0,0 +1,87 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpapppacket.h" +#ifdef RTPDEBUG + #include <iostream> + #include <string> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTCPAPPPacket::RTCPAPPPacket(uint8_t *data,size_t datalength) + : RTCPPacket(APP,data,datalength) +{ + knownformat = false; + + RTCPCommonHeader *hdr; + size_t len = datalength; + + hdr = (RTCPCommonHeader *)data; + if (hdr->padding) + { + uint8_t padcount = data[datalength-1]; + if ((padcount & 0x03) != 0) // not a multiple of four! (see rfc 3550 p 37) + return; + if (((size_t)padcount) >= len) + return; + len -= (size_t)padcount; + } + + if (len < (sizeof(RTCPCommonHeader)+sizeof(uint32_t)*2)) + return; + len -= (sizeof(RTCPCommonHeader)+sizeof(uint32_t)*2); + appdatalen = len; + knownformat = true; +} + +#ifdef RTPDEBUG +void RTCPAPPPacket::Dump() +{ + RTCPPacket::Dump(); + if (!IsKnownFormat()) + { + std::cout << " Unknown format!" << std::endl; + } + else + { + std::cout << " SSRC: " << GetSSRC() << std::endl; + + char str[5]; + memcpy(str,GetName(),4); + str[4] = 0; + std::cout << " Name: " << std::string(str).c_str() << std::endl; + std::cout << " Length: " << GetAPPDataLength() << std::endl; + } +} +#endif // RTPDEBUG + diff --git a/src/rtcpapppacket.h b/src/rtcpapppacket.h new file mode 100644 index 0000000..4e5f9b7 --- /dev/null +++ b/src/rtcpapppacket.h @@ -0,0 +1,127 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpapppacket.h + */ + +#ifndef RTCPAPPPACKET_H + +#define RTCPAPPPACKET_H + +#include "rtpconfig.h" +#include "rtcppacket.h" +#include "rtpstructs.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +class RTCPCompoundPacket; + +/** Describes an RTCP APP packet. */ +class RTCPAPPPacket : public RTCPPacket +{ +public: + /** Creates an instance based on the data in \c data with length \c datalen. + * Creates an instance based on the data in \c data with length \c datalen. Since the \c data pointer + * is referenced inside the class (no copy of the data is made) one must make sure that the memory it + * points to is valid as long as the class instance exists. + */ + RTCPAPPPacket(uint8_t *data,size_t datalen); + ~RTCPAPPPacket() { } + + /** Returns the subtype contained in the APP packet. */ + uint8_t GetSubType() const; + + /** Returns the SSRC of the source which sent this packet. */ + uint32_t GetSSRC() const; + + /** Returns the name contained in the APP packet. + * Returns the name contained in the APP packet. This alway consists of four bytes and is not NULL-terminated. + */ + uint8_t *GetName(); + + /** Returns a pointer to the actual data. */ + uint8_t *GetAPPData(); + + /** Returns the length of the actual data. */ + size_t GetAPPDataLength() const; +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + size_t appdatalen; +}; + +inline uint8_t RTCPAPPPacket::GetSubType() const +{ + if (!knownformat) + return 0; + RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; + return hdr->count; +} + +inline uint32_t RTCPAPPPacket::GetSSRC() const +{ + if (!knownformat) + return 0; + + uint32_t *ssrc = (uint32_t *)(data+sizeof(RTCPCommonHeader)); + return ntohl(*ssrc); +} + +inline uint8_t *RTCPAPPPacket::GetName() +{ + if (!knownformat) + return 0; + + return (data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); +} + +inline uint8_t *RTCPAPPPacket::GetAPPData() +{ + if (!knownformat) + return 0; + if (appdatalen == 0) + return 0; + return (data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)*2); +} + +inline size_t RTCPAPPPacket::GetAPPDataLength() const +{ + if (!knownformat) + return 0; + return appdatalen; +} + +#endif // RTCPAPPPACKET_H + diff --git a/src/rtcpbyepacket.cpp b/src/rtcpbyepacket.cpp new file mode 100644 index 0000000..794a3b8 --- /dev/null +++ b/src/rtcpbyepacket.cpp @@ -0,0 +1,98 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpbyepacket.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTCPBYEPacket::RTCPBYEPacket(uint8_t *data,size_t datalength) + : RTCPPacket(BYE,data,datalength) +{ + knownformat = false; + reasonoffset = 0; + + RTCPCommonHeader *hdr; + size_t len = datalength; + + hdr = (RTCPCommonHeader *)data; + if (hdr->padding) + { + uint8_t padcount = data[datalength-1]; + if ((padcount & 0x03) != 0) // not a multiple of four! (see rfc 3550 p 37) + return; + if (((size_t)padcount) >= len) + return; + len -= (size_t)padcount; + } + + size_t ssrclen = ((size_t)(hdr->count))*sizeof(uint32_t) + sizeof(RTCPCommonHeader); + if (ssrclen > len) + return; + if (ssrclen < len) // there's probably a reason for leaving + { + uint8_t *reasonlength = (data+ssrclen); + size_t reaslen = (size_t)(*reasonlength); + if (reaslen > (len-ssrclen-1)) + return; + reasonoffset = ssrclen; + } + knownformat = true; +} + +#ifdef RTPDEBUG +void RTCPBYEPacket::Dump() +{ + RTCPPacket::Dump(); + if (!IsKnownFormat()) + { + std::cout << " Unknown format" << std::endl; + return; + } + + int num = GetSSRCCount(); + int i; + + for (i = 0 ; i < num ; i++) + std::cout << " SSRC: " << GetSSRC(i) << std::endl; + if (HasReasonForLeaving()) + { + char str[1024]; + memcpy(str,GetReasonData(),GetReasonLength()); + str[GetReasonLength()] = 0; + std::cout << " Reason: " << str << std::endl; + } +} +#endif // RTPDEBUG + diff --git a/src/rtcpbyepacket.h b/src/rtcpbyepacket.h new file mode 100644 index 0000000..027b856 --- /dev/null +++ b/src/rtcpbyepacket.h @@ -0,0 +1,135 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpbyepacket.h + */ + +#ifndef RTCPBYEPACKET_H + +#define RTCPBYEPACKET_H + +#include "rtpconfig.h" +#include "rtcppacket.h" +#include "rtpstructs.h" +#if ! (defined(WIN32) || defined (_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +class RTCPCompoundPacket; + +/** Describes an RTCP BYE packet. */ +class RTCPBYEPacket : public RTCPPacket +{ +public: + /** Creates an instance based on the data in \c data with length \c datalen. + * Creates an instance based on the data in \c data with length \c datalen. Since the \c data pointer + * is referenced inside the class (no copy of the data is made) one must make sure that the memory it + * points to is valid as long as the class instance exists. + */ + RTCPBYEPacket(uint8_t *data,size_t datalen); + ~RTCPBYEPacket() { } + + /** Returns the number of SSRC identifiers present in this BYE packet. */ + int GetSSRCCount() const; + + /** Returns the SSRC described by \c index which may have a value from 0 to GetSSRCCount()-1 + * (note that no check is performed to see if \c index is valid). + */ + uint32_t GetSSRC(int index) const; // note: no check is performed to see if index is valid! + + /** Returns true if the BYE packet contains a reason for leaving. */ + bool HasReasonForLeaving() const; + + /** Returns the length of the string which describes why the source(s) left. */ + size_t GetReasonLength() const; + + /** Returns the actual reason for leaving data. */ + uint8_t *GetReasonData(); + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + size_t reasonoffset; +}; + +inline int RTCPBYEPacket::GetSSRCCount() const +{ + if (!knownformat) + return 0; + + RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; + return (int)(hdr->count); +} + +inline uint32_t RTCPBYEPacket::GetSSRC(int index) const +{ + if (!knownformat) + return 0; + uint32_t *ssrc = (uint32_t *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)*index); + return ntohl(*ssrc); +} + +inline bool RTCPBYEPacket::HasReasonForLeaving() const +{ + if (!knownformat) + return false; + if (reasonoffset == 0) + return false; + return true; +} + +inline size_t RTCPBYEPacket::GetReasonLength() const +{ + if (!knownformat) + return 0; + if (reasonoffset == 0) + return 0; + uint8_t *reasonlen = (data+reasonoffset); + return (size_t)(*reasonlen); +} + +inline uint8_t *RTCPBYEPacket::GetReasonData() +{ + if (!knownformat) + return 0; + if (reasonoffset == 0) + return 0; + uint8_t *reasonlen = (data+reasonoffset); + if ((*reasonlen) == 0) + return 0; + return (data+reasonoffset+1); +} + +#endif // RTCPBYEPACKET_H + diff --git a/src/rtcpcompoundpacket.cpp b/src/rtcpcompoundpacket.cpp new file mode 100644 index 0000000..c284fa4 --- /dev/null +++ b/src/rtcpcompoundpacket.cpp @@ -0,0 +1,225 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpcompoundpacket.h" +#include "rtprawpacket.h" +#include "rtperrors.h" +#include "rtpstructs.h" +#include "rtpdefines.h" +#include "rtcpsrpacket.h" +#include "rtcprrpacket.h" +#include "rtcpsdespacket.h" +#include "rtcpbyepacket.h" +#include "rtcpapppacket.h" +#include "rtcpunknownpacket.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +#include "rtpdebug.h" + +RTCPCompoundPacket::RTCPCompoundPacket(RTPRawPacket &rawpack, RTPMemoryManager *mgr) : RTPMemoryObject(mgr) +{ + compoundpacket = 0; + compoundpacketlength = 0; + error = 0; + + if (rawpack.IsRTP()) + { + error = ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + return; + } + + uint8_t *data = rawpack.GetData(); + size_t datalen = rawpack.GetDataLength(); + + error = ParseData(data,datalen); + if (error < 0) + return; + + compoundpacket = rawpack.GetData(); + compoundpacketlength = rawpack.GetDataLength(); + deletepacket = true; + + rawpack.ZeroData(); + + rtcppackit = rtcppacklist.begin(); +} + +RTCPCompoundPacket::RTCPCompoundPacket(uint8_t *packet, size_t packetlen, bool deletedata, RTPMemoryManager *mgr) : RTPMemoryObject(mgr) +{ + compoundpacket = 0; + compoundpacketlength = 0; + + error = ParseData(packet,packetlen); + if (error < 0) + return; + + compoundpacket = packet; + compoundpacketlength = packetlen; + deletepacket = deletedata; + + rtcppackit = rtcppacklist.begin(); +} + +RTCPCompoundPacket::RTCPCompoundPacket(RTPMemoryManager *mgr) : RTPMemoryObject(mgr) +{ + compoundpacket = 0; + compoundpacketlength = 0; + error = 0; + deletepacket = true; +} + +int RTCPCompoundPacket::ParseData(uint8_t *data, size_t datalen) +{ + bool first; + + if (datalen < sizeof(RTCPCommonHeader)) + return ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + + first = true; + + do + { + RTCPCommonHeader *rtcphdr; + size_t length; + + rtcphdr = (RTCPCommonHeader *)data; + if (rtcphdr->version != RTP_VERSION) // check version + { + ClearPacketList(); + return ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + } + if (first) + { + // Check if first packet is SR or RR + + first = false; + if ( ! (rtcphdr->packettype == RTP_RTCPTYPE_SR || rtcphdr->packettype == RTP_RTCPTYPE_RR)) + { + ClearPacketList(); + return ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + } + } + + length = (size_t)ntohs(rtcphdr->length); + length++; + length *= sizeof(uint32_t); + + if (length > datalen) // invalid length field + { + ClearPacketList(); + return ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + } + + if (rtcphdr->padding) + { + // check if it's the last packet + if (length != datalen) + { + ClearPacketList(); + return ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + } + } + + RTCPPacket *p; + + switch (rtcphdr->packettype) + { + case RTP_RTCPTYPE_SR: + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPSRPACKET) RTCPSRPacket(data,length); + break; + case RTP_RTCPTYPE_RR: + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPRRPACKET) RTCPRRPacket(data,length); + break; + case RTP_RTCPTYPE_SDES: + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPSDESPACKET) RTCPSDESPacket(data,length); + break; + case RTP_RTCPTYPE_BYE: + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPBYEPACKET) RTCPBYEPacket(data,length); + break; + case RTP_RTCPTYPE_APP: + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPAPPPACKET) RTCPAPPPacket(data,length); + break; + default: + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPUNKNOWNPACKET) RTCPUnknownPacket(data,length); + } + + if (p == 0) + { + ClearPacketList(); + return ERR_RTP_OUTOFMEM; + } + + rtcppacklist.push_back(p); + + datalen -= length; + data += length; + } while (datalen >= (size_t)sizeof(RTCPCommonHeader)); + + if (datalen != 0) // some remaining bytes + { + ClearPacketList(); + return ERR_RTP_RTCPCOMPOUND_INVALIDPACKET; + } + return 0; +} + +RTCPCompoundPacket::~RTCPCompoundPacket() +{ + ClearPacketList(); + if (compoundpacket && deletepacket) + RTPDeleteByteArray(compoundpacket,GetMemoryManager()); +} + +void RTCPCompoundPacket::ClearPacketList() +{ + std::list<RTCPPacket *>::const_iterator it; + + for (it = rtcppacklist.begin() ; it != rtcppacklist.end() ; it++) + RTPDelete(*it,GetMemoryManager()); + rtcppacklist.clear(); + rtcppackit = rtcppacklist.begin(); +} + +#ifdef RTPDEBUG +void RTCPCompoundPacket::Dump() +{ + std::list<RTCPPacket *>::const_iterator it; + for (it = rtcppacklist.begin() ; it != rtcppacklist.end() ; it++) + { + RTCPPacket *p = *it; + + p->Dump(); + } +} +#endif // RTPDEBUG diff --git a/src/rtcpcompoundpacket.h b/src/rtcpcompoundpacket.h new file mode 100644 index 0000000..0b7fa66 --- /dev/null +++ b/src/rtcpcompoundpacket.h @@ -0,0 +1,106 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpcompoundpacket.h + */ + +#ifndef RTCPCOMPOUNDPACKET_H + +#define RTCPCOMPOUNDPACKET_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#include "rtpmemoryobject.h" +#include <list> + +class RTPRawPacket; +class RTCPPacket; + +/** Represents an RTCP compound packet. */ +class RTCPCompoundPacket : public RTPMemoryObject +{ +public: + /** Creates an RTCPCompoundPacket instance from the data in \c rawpack, installing a memory manager if specified. */ + RTCPCompoundPacket(RTPRawPacket &rawpack, RTPMemoryManager *memmgr = 0); + + /** Creates an RTCPCompoundPacket instance from the data in \c packet}, with size \c len. + * Creates an RTCPCompoundPacket instance from the data in \c packet}, with size \c len. The \c deletedata + * flag specifies if the data in \c packet should be deleted when the compound packet is destroyed. If + * specified, a memory manager will be installed. + */ + RTCPCompoundPacket(uint8_t *packet, size_t len, bool deletedata = true, RTPMemoryManager *memmgr = 0); +protected: + RTCPCompoundPacket(RTPMemoryManager *memmgr); // this is for the compoundpacket builder +public: + virtual ~RTCPCompoundPacket(); + + /** Checks if the RTCP compound packet was created successfully. + * If the raw packet data in the constructor could not be parsed, this function returns the error code of + * what went wrong. If the packet had an invalid format, the return value is \c ERR_RTP_RTCPCOMPOUND_INVALIDPACKET. + */ + int GetCreationError() { return error; } + + /** Returns a pointer to the data of the entire RTCP compound packet. */ + uint8_t *GetCompoundPacketData() { return compoundpacket; } + + /** Returns the size of the entire RTCP compound packet. */ + size_t GetCompoundPacketLength() { return compoundpacketlength; } + + /** Starts the iteration over the individual RTCP packets in the RTCP compound packet. */ + void GotoFirstPacket() { rtcppackit = rtcppacklist.begin(); } + + /** Returns a pointer to the next individual RTCP packet. + * Returns a pointer to the next individual RTCP packet. Note that no \c delete call may be done + * on the RTCPPacket instance which is returned. + */ + RTCPPacket *GetNextPacket() { if (rtcppackit == rtcppacklist.end()) return 0; RTCPPacket *p = *rtcppackit; rtcppackit++; return p; } + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +protected: + void ClearPacketList(); + int ParseData(uint8_t *packet, size_t len); + + int error; + + uint8_t *compoundpacket; + size_t compoundpacketlength; + bool deletepacket; + + std::list<RTCPPacket *> rtcppacklist; + std::list<RTCPPacket *>::const_iterator rtcppackit; +}; + +#endif // RTCPCOMPOUNDPACKET_H + diff --git a/src/rtcpcompoundpacketbuilder.cpp b/src/rtcpcompoundpacketbuilder.cpp new file mode 100644 index 0000000..8172007 --- /dev/null +++ b/src/rtcpcompoundpacketbuilder.cpp @@ -0,0 +1,675 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpcompoundpacketbuilder.h" +#include "rtcpsrpacket.h" +#include "rtcprrpacket.h" +#include "rtcpsdespacket.h" +#include "rtcpbyepacket.h" +#include "rtcpapppacket.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +#include "rtpdebug.h" + +RTCPCompoundPacketBuilder::RTCPCompoundPacketBuilder(RTPMemoryManager *mgr) : RTCPCompoundPacket(mgr), report(mgr), sdes(mgr) +{ + byesize = 0; + appsize = 0; + maximumpacketsize = 0; + buffer = 0; + external = false; + arebuilding = false; +} + +RTCPCompoundPacketBuilder::~RTCPCompoundPacketBuilder() +{ + if (external) + compoundpacket = 0; // make sure RTCPCompoundPacket doesn't delete the external buffer + ClearBuildBuffers(); +} + +void RTCPCompoundPacketBuilder::ClearBuildBuffers() +{ + report.Clear(); + sdes.Clear(); + + std::list<Buffer>::const_iterator it; + for (it = byepackets.begin() ; it != byepackets.end() ; it++) + { + if ((*it).packetdata) + RTPDeleteByteArray((*it).packetdata,GetMemoryManager()); + } + for (it = apppackets.begin() ; it != apppackets.end() ; it++) + { + if ((*it).packetdata) + RTPDeleteByteArray((*it).packetdata,GetMemoryManager()); + } + + byepackets.clear(); + apppackets.clear(); + byesize = 0; + appsize = 0; +} + +int RTCPCompoundPacketBuilder::InitBuild(size_t maxpacketsize) +{ + if (arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILDING; + if (compoundpacket) + return ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILT; + + if (maxpacketsize < RTP_MINPACKETSIZE) + return ERR_RTP_RTCPCOMPPACKBUILDER_MAXPACKETSIZETOOSMALL; + + maximumpacketsize = maxpacketsize; + buffer = 0; + external = false; + byesize = 0; + appsize = 0; + + arebuilding = true; + return 0; +} + +int RTCPCompoundPacketBuilder::InitBuild(void *externalbuffer,size_t buffersize) +{ + if (arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILDING; + if (compoundpacket) + return ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILT; + + if (buffersize < RTP_MINPACKETSIZE) + return ERR_RTP_RTCPCOMPPACKBUILDER_BUFFERSIZETOOSMALL; + + maximumpacketsize = buffersize; + buffer = (uint8_t *)externalbuffer; + external = true; + byesize = 0; + appsize = 0; + + arebuilding = true; + return 0; +} + +int RTCPCompoundPacketBuilder::StartSenderReport(uint32_t senderssrc,const RTPNTPTime &ntptimestamp,uint32_t rtptimestamp, + uint32_t packetcount,uint32_t octetcount) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + + if (report.headerlength != 0) + return ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYGOTREPORT; + + size_t totalsize = byesize+appsize+sdes.NeededBytes(); + size_t sizeleft = maximumpacketsize-totalsize; + size_t neededsize = sizeof(RTCPCommonHeader)+sizeof(uint32_t)+sizeof(RTCPSenderReport); + + if (neededsize > sizeleft) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + // fill in some things + + report.headerlength = sizeof(uint32_t)+sizeof(RTCPSenderReport); + report.isSR = true; + + uint32_t *ssrc = (uint32_t *)report.headerdata; + *ssrc = htonl(senderssrc); + + RTCPSenderReport *sr = (RTCPSenderReport *)(report.headerdata + sizeof(uint32_t)); + sr->ntptime_msw = htonl(ntptimestamp.GetMSW()); + sr->ntptime_lsw = htonl(ntptimestamp.GetLSW()); + sr->rtptimestamp = htonl(rtptimestamp); + sr->packetcount = htonl(packetcount); + sr->octetcount = htonl(octetcount); + + return 0; +} + +int RTCPCompoundPacketBuilder::StartReceiverReport(uint32_t senderssrc) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + if (report.headerlength != 0) + return ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYGOTREPORT; + + size_t totalsize = byesize+appsize+sdes.NeededBytes(); + size_t sizeleft = maximumpacketsize-totalsize; + size_t neededsize = sizeof(RTCPCommonHeader)+sizeof(uint32_t); + + if (neededsize > sizeleft) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + // fill in some things + + report.headerlength = sizeof(uint32_t); + report.isSR = false; + + uint32_t *ssrc = (uint32_t *)report.headerdata; + *ssrc = htonl(senderssrc); + + return 0; +} + +int RTCPCompoundPacketBuilder::AddReportBlock(uint32_t ssrc,uint8_t fractionlost,int32_t packetslost,uint32_t exthighestseq, + uint32_t jitter,uint32_t lsr,uint32_t dlsr) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + if (report.headerlength == 0) + return ERR_RTP_RTCPCOMPPACKBUILDER_REPORTNOTSTARTED; + + size_t totalothersize = byesize+appsize+sdes.NeededBytes(); + size_t reportsizewithextrablock = report.NeededBytesWithExtraReportBlock(); + + if ((totalothersize+reportsizewithextrablock) > maximumpacketsize) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + uint8_t *buf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPRECEIVERREPORT) uint8_t[sizeof(RTCPReceiverReport)]; + if (buf == 0) + return ERR_RTP_OUTOFMEM; + + RTCPReceiverReport *rr = (RTCPReceiverReport *)buf; + uint32_t *packlost = (uint32_t *)&packetslost; + uint32_t packlost2 = (*packlost); + + rr->ssrc = htonl(ssrc); + rr->fractionlost = fractionlost; + rr->packetslost[2] = (uint8_t)(packlost2&0xFF); + rr->packetslost[1] = (uint8_t)((packlost2>>8)&0xFF); + rr->packetslost[0] = (uint8_t)((packlost2>>16)&0xFF); + rr->exthighseqnr = htonl(exthighestseq); + rr->jitter = htonl(jitter); + rr->lsr = htonl(lsr); + rr->dlsr = htonl(dlsr); + + report.reportblocks.push_back(Buffer(buf,sizeof(RTCPReceiverReport))); + return 0; +} + +int RTCPCompoundPacketBuilder::AddSDESSource(uint32_t ssrc) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + + size_t totalotherbytes = byesize+appsize+report.NeededBytes(); + size_t sdessizewithextrasource = sdes.NeededBytesWithExtraSource(); + + if ((totalotherbytes + sdessizewithextrasource) > maximumpacketsize) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + int status; + + if ((status = sdes.AddSSRC(ssrc)) < 0) + return status; + return 0; +} + +int RTCPCompoundPacketBuilder::AddSDESNormalItem(RTCPSDESPacket::ItemType t,const void *itemdata,uint8_t itemlength) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + if (sdes.sdessources.empty()) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOCURRENTSOURCE; + + uint8_t itemid; + + switch(t) + { + case RTCPSDESPacket::CNAME: + itemid = RTCP_SDES_ID_CNAME; + break; + case RTCPSDESPacket::NAME: + itemid = RTCP_SDES_ID_NAME; + break; + case RTCPSDESPacket::EMAIL: + itemid = RTCP_SDES_ID_EMAIL; + break; + case RTCPSDESPacket::PHONE: + itemid = RTCP_SDES_ID_PHONE; + break; + case RTCPSDESPacket::LOC: + itemid = RTCP_SDES_ID_LOCATION; + break; + case RTCPSDESPacket::TOOL: + itemid = RTCP_SDES_ID_TOOL; + break; + case RTCPSDESPacket::NOTE: + itemid = RTCP_SDES_ID_NOTE; + break; + default: + return ERR_RTP_RTCPCOMPPACKBUILDER_INVALIDITEMTYPE; + } + + size_t totalotherbytes = byesize+appsize+report.NeededBytes(); + size_t sdessizewithextraitem = sdes.NeededBytesWithExtraItem(itemlength); + + if ((sdessizewithextraitem+totalotherbytes) > maximumpacketsize) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + uint8_t *buf; + size_t len; + + buf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTCPSDESBLOCK) uint8_t[sizeof(RTCPSDESHeader)+(size_t)itemlength]; + if (buf == 0) + return ERR_RTP_OUTOFMEM; + len = sizeof(RTCPSDESHeader)+(size_t)itemlength; + + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(buf); + + sdeshdr->sdesid = itemid; + sdeshdr->length = itemlength; + if (itemlength != 0) + memcpy((buf + sizeof(RTCPSDESHeader)),itemdata,(size_t)itemlength); + + sdes.AddItem(buf,len); + return 0; +} + +#ifdef RTP_SUPPORT_SDESPRIV +int RTCPCompoundPacketBuilder::AddSDESPrivateItem(const void *prefixdata,uint8_t prefixlength,const void *valuedata, + uint8_t valuelength) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + if (sdes.sdessources.empty()) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOCURRENTSOURCE; + + size_t itemlength = ((size_t)prefixlength)+1+((size_t)valuelength); + if (itemlength > 255) + return ERR_RTP_RTCPCOMPPACKBUILDER_TOTALITEMLENGTHTOOBIG; + + size_t totalotherbytes = byesize+appsize+report.NeededBytes(); + size_t sdessizewithextraitem = sdes.NeededBytesWithExtraItem(itemlength); + + if ((sdessizewithextraitem+totalotherbytes) > maximumpacketsize) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + uint8_t *buf; + size_t len; + + buf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTCPSDESBLOCK) uint8_t[sizeof(RTCPSDESHeader)+itemlength]; + if (buf == 0) + return ERR_RTP_OUTOFMEM; + len = sizeof(RTCPSDESHeader)+(size_t)itemlength; + + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(buf); + + sdeshdr->sdesid = RTCP_SDES_ID_PRIVATE; + sdeshdr->length = itemlength; + + buf[sizeof(RTCPSDESHeader)] = prefixlength; + if (prefixlength != 0) + memcpy((buf+sizeof(RTCPSDESHeader)+1),prefixdata,(size_t)prefixlength); + if (valuelength != 0) + memcpy((buf+sizeof(RTCPSDESHeader)+1+(size_t)prefixlength),valuedata,(size_t)valuelength); + + sdes.AddItem(buf,len); + return 0; +} +#endif // RTP_SUPPORT_SDESPRIV + +int RTCPCompoundPacketBuilder::AddBYEPacket(uint32_t *ssrcs,uint8_t numssrcs,const void *reasondata,uint8_t reasonlength) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + + if (numssrcs > 31) + return ERR_RTP_RTCPCOMPPACKBUILDER_TOOMANYSSRCS; + + size_t packsize = sizeof(RTCPCommonHeader)+sizeof(uint32_t)*((size_t)numssrcs); + size_t zerobytes = 0; + + if (reasonlength > 0) + { + packsize += 1; // 1 byte for the length; + packsize += (size_t)reasonlength; + + size_t r = (packsize&0x03); + if (r != 0) + { + zerobytes = 4-r; + packsize += zerobytes; + } + } + + size_t totalotherbytes = appsize+byesize+sdes.NeededBytes()+report.NeededBytes(); + + if ((totalotherbytes + packsize) > maximumpacketsize) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + uint8_t *buf; + size_t numwords; + + buf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTCPBYEPACKET) uint8_t[packsize]; + if (buf == 0) + return ERR_RTP_OUTOFMEM; + + RTCPCommonHeader *hdr = (RTCPCommonHeader *)buf; + + hdr->version = 2; + hdr->padding = 0; + hdr->count = numssrcs; + + numwords = packsize/sizeof(uint32_t); + hdr->length = htons((uint16_t)(numwords-1)); + hdr->packettype = RTP_RTCPTYPE_BYE; + + uint32_t *sources = (uint32_t *)(buf+sizeof(RTCPCommonHeader)); + uint8_t srcindex; + + for (srcindex = 0 ; srcindex < numssrcs ; srcindex++) + sources[srcindex] = htonl(ssrcs[srcindex]); + + if (reasonlength != 0) + { + size_t offset = sizeof(RTCPCommonHeader)+((size_t)numssrcs)*sizeof(uint32_t); + + buf[offset] = reasonlength; + memcpy((buf+offset+1),reasondata,(size_t)reasonlength); + for (size_t i = 0 ; i < zerobytes ; i++) + buf[packsize-1-i] = 0; + } + + byepackets.push_back(Buffer(buf,packsize)); + byesize += packsize; + + return 0; +} + +int RTCPCompoundPacketBuilder::AddAPPPacket(uint8_t subtype,uint32_t ssrc,const uint8_t name[4],const void *appdata,size_t appdatalen) +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + if (subtype > 31) + return ERR_RTP_RTCPCOMPPACKBUILDER_ILLEGALSUBTYPE; + if ((appdatalen%4) != 0) + return ERR_RTP_RTCPCOMPPACKBUILDER_ILLEGALAPPDATALENGTH; + + size_t appdatawords = appdatalen/4; + + if ((appdatawords+2) > 65535) + return ERR_RTP_RTCPCOMPPACKBUILDER_APPDATALENTOOBIG; + + size_t packsize = sizeof(RTCPCommonHeader)+sizeof(uint32_t)*2+appdatalen; + size_t totalotherbytes = appsize+byesize+sdes.NeededBytes()+report.NeededBytes(); + + if ((totalotherbytes + packsize) > maximumpacketsize) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT; + + uint8_t *buf; + + buf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTCPAPPPACKET) uint8_t[packsize]; + if (buf == 0) + return ERR_RTP_OUTOFMEM; + + RTCPCommonHeader *hdr = (RTCPCommonHeader *)buf; + + hdr->version = 2; + hdr->padding = 0; + hdr->count = subtype; + + hdr->length = htons((uint16_t)(appdatawords+2)); + hdr->packettype = RTP_RTCPTYPE_APP; + + uint32_t *source = (uint32_t *)(buf+sizeof(RTCPCommonHeader)); + *source = htonl(ssrc); + + buf[sizeof(RTCPCommonHeader)+sizeof(uint32_t)+0] = name[0]; + buf[sizeof(RTCPCommonHeader)+sizeof(uint32_t)+1] = name[1]; + buf[sizeof(RTCPCommonHeader)+sizeof(uint32_t)+2] = name[2]; + buf[sizeof(RTCPCommonHeader)+sizeof(uint32_t)+3] = name[3]; + + if (appdatalen > 0) + memcpy((buf+sizeof(RTCPCommonHeader)+sizeof(uint32_t)*2),appdata,appdatalen); + + apppackets.push_back(Buffer(buf,packsize)); + appsize += packsize; + + return 0; +} + +int RTCPCompoundPacketBuilder::EndBuild() +{ + if (!arebuilding) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING; + if (report.headerlength == 0) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOREPORTPRESENT; + + uint8_t *buf; + size_t len; + + len = appsize+byesize+report.NeededBytes()+sdes.NeededBytes(); + + if (!external) + { + buf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTCPCOMPOUNDPACKET) uint8_t[len]; + if (buf == 0) + return ERR_RTP_OUTOFMEM; + } + else + buf = buffer; + + uint8_t *curbuf = buf; + RTCPPacket *p; + + // first, we'll add all report info + + { + bool firstpacket = true; + bool done = false; + std::list<Buffer>::const_iterator it = report.reportblocks.begin(); + do + { + RTCPCommonHeader *hdr = (RTCPCommonHeader *)curbuf; + size_t offset; + + hdr->version = 2; + hdr->padding = 0; + + if (firstpacket && report.isSR) + { + hdr->packettype = RTP_RTCPTYPE_SR; + memcpy((curbuf+sizeof(RTCPCommonHeader)),report.headerdata,report.headerlength); + offset = sizeof(RTCPCommonHeader)+report.headerlength; + } + else + { + hdr->packettype = RTP_RTCPTYPE_RR; + memcpy((curbuf+sizeof(RTCPCommonHeader)),report.headerdata,sizeof(uint32_t)); + offset = sizeof(RTCPCommonHeader)+sizeof(uint32_t); + } + firstpacket = false; + + uint8_t count = 0; + + while (it != report.reportblocks.end() && count < 31) + { + memcpy(curbuf+offset,(*it).packetdata,(*it).packetlength); + offset += (*it).packetlength; + count++; + it++; + } + + size_t numwords = offset/sizeof(uint32_t); + + hdr->length = htons((uint16_t)(numwords-1)); + hdr->count = count; + + // add entry in parent's list + if (hdr->packettype == RTP_RTCPTYPE_SR) + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPSRPACKET) RTCPSRPacket(curbuf,offset); + else + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPRRPACKET) RTCPRRPacket(curbuf,offset); + if (p == 0) + { + if (!external) + RTPDeleteByteArray(buf,GetMemoryManager()); + ClearPacketList(); + return ERR_RTP_OUTOFMEM; + } + rtcppacklist.push_back(p); + + curbuf += offset; + if (it == report.reportblocks.end()) + done = true; + } while (!done); + } + + // then, we'll add the sdes info + + if (!sdes.sdessources.empty()) + { + bool done = false; + std::list<SDESSource *>::const_iterator sourceit = sdes.sdessources.begin(); + + do + { + RTCPCommonHeader *hdr = (RTCPCommonHeader *)curbuf; + size_t offset = sizeof(RTCPCommonHeader); + + hdr->version = 2; + hdr->padding = 0; + hdr->packettype = RTP_RTCPTYPE_SDES; + + uint8_t sourcecount = 0; + + while (sourceit != sdes.sdessources.end() && sourcecount < 31) + { + uint32_t *ssrc = (uint32_t *)(curbuf+offset); + *ssrc = htonl((*sourceit)->ssrc); + offset += sizeof(uint32_t); + + std::list<Buffer>::const_iterator itemit,itemend; + + itemit = (*sourceit)->items.begin(); + itemend = (*sourceit)->items.end(); + while (itemit != itemend) + { + memcpy(curbuf+offset,(*itemit).packetdata,(*itemit).packetlength); + offset += (*itemit).packetlength; + itemit++; + } + + curbuf[offset] = 0; // end of item list; + offset++; + + size_t r = offset&0x03; + if (r != 0) // align to 32 bit boundary + { + size_t num = 4-r; + size_t i; + + for (i = 0 ; i < num ; i++) + curbuf[offset+i] = 0; + offset += num; + } + + sourceit++; + sourcecount++; + } + + size_t numwords = offset/4; + + hdr->count = sourcecount; + hdr->length = htons((uint16_t)(numwords-1)); + + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPSDESPACKET) RTCPSDESPacket(curbuf,offset); + if (p == 0) + { + if (!external) + RTPDeleteByteArray(buf,GetMemoryManager()); + ClearPacketList(); + return ERR_RTP_OUTOFMEM; + } + rtcppacklist.push_back(p); + + curbuf += offset; + if (sourceit == sdes.sdessources.end()) + done = true; + } while (!done); + } + + // adding the app data + + { + std::list<Buffer>::const_iterator it; + + for (it = apppackets.begin() ; it != apppackets.end() ; it++) + { + memcpy(curbuf,(*it).packetdata,(*it).packetlength); + + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPAPPPACKET) RTCPAPPPacket(curbuf,(*it).packetlength); + if (p == 0) + { + if (!external) + RTPDeleteByteArray(buf,GetMemoryManager()); + ClearPacketList(); + return ERR_RTP_OUTOFMEM; + } + rtcppacklist.push_back(p); + + curbuf += (*it).packetlength; + } + } + + // adding bye packets + + { + std::list<Buffer>::const_iterator it; + + for (it = byepackets.begin() ; it != byepackets.end() ; it++) + { + memcpy(curbuf,(*it).packetdata,(*it).packetlength); + + p = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPBYEPACKET) RTCPBYEPacket(curbuf,(*it).packetlength); + if (p == 0) + { + if (!external) + RTPDeleteByteArray(buf,GetMemoryManager()); + ClearPacketList(); + return ERR_RTP_OUTOFMEM; + } + rtcppacklist.push_back(p); + + curbuf += (*it).packetlength; + } + } + + compoundpacket = buf; + compoundpacketlength = len; + arebuilding = false; + ClearBuildBuffers(); + return 0; +} + diff --git a/src/rtcpcompoundpacketbuilder.h b/src/rtcpcompoundpacketbuilder.h new file mode 100644 index 0000000..4537105 --- /dev/null +++ b/src/rtcpcompoundpacketbuilder.h @@ -0,0 +1,383 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpcompoundpacketbuilder.h + */ + +#ifndef RTCPCOMPOUNDPACKETBUILDER_H + +#define RTCPCOMPOUNDPACKETBUILDER_H + +#include "rtpconfig.h" +#include "rtcpcompoundpacket.h" +#include "rtptimeutilities.h" +#include "rtcpsdespacket.h" +#include "rtperrors.h" +#include <list> + +class RTPMemoryManager; + +/** This class can be used to construct an RTCP compound packet. + * The RTCPCompoundPacketBuilder class can be used to construct an RTCP compound packet. It inherits the member + * functions of RTCPCompoundPacket which can be used to access the information in the compound packet once it has + * been built successfully. The member functions described below return \c ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT + * if the action would cause the maximum allowed size to be exceeded. + */ +class RTCPCompoundPacketBuilder : public RTCPCompoundPacket +{ +public: + /** Constructs an RTCPCompoundPacketBuilder instance, optionally installing a memory manager. */ + RTCPCompoundPacketBuilder(RTPMemoryManager *memmgr = 0); + ~RTCPCompoundPacketBuilder(); + + /** Starts building an RTCP compound packet with maximum size \c maxpacketsize. + * Starts building an RTCP compound packet with maximum size \c maxpacketsize. New memory will be allocated + * to store the packet. + */ + int InitBuild(size_t maxpacketsize); + + /** Starts building a RTCP compound packet. + * Starts building a RTCP compound packet. Data will be stored in \c externalbuffer which + * can contain \c buffersize bytes. + */ + int InitBuild(void *externalbuffer,size_t buffersize); + + /** Adds a sender report to the compound packet. + * Tells the packet builder that the packet should start with a sender report which will contain + * the sender information specified by this function's arguments. Once the sender report is started, + * report blocks can be added using the AddReportBlock function. + */ + int StartSenderReport(uint32_t senderssrc,const RTPNTPTime &ntptimestamp,uint32_t rtptimestamp, + uint32_t packetcount,uint32_t octetcount); + + /** Adds a receiver report to the compound packet. + * Tells the packet builder that the packet should start with a receiver report which will contain + * he sender SSRC \c senderssrc. Once the sender report is started, report blocks can be added using the + * AddReportBlock function. + */ + int StartReceiverReport(uint32_t senderssrc); + + /** Adds the report block information specified by the function's arguments. + * Adds the report block information specified by the function's arguments. If more than 31 report blocks + * are added, the builder will automatically use a new RTCP receiver report packet. + */ + int AddReportBlock(uint32_t ssrc,uint8_t fractionlost,int32_t packetslost,uint32_t exthighestseq, + uint32_t jitter,uint32_t lsr,uint32_t dlsr); + + /** Starts an SDES chunk for participant \c ssrc. */ + int AddSDESSource(uint32_t ssrc); + + /** Adds a normal (non-private) SDES item of type \c t to the current SDES chunk. + * Adds a normal (non-private) SDES item of type \c t to the current SDES chunk. The item's value + * will have length \c itemlength and will contain the data \c itemdata. + */ + int AddSDESNormalItem(RTCPSDESPacket::ItemType t,const void *itemdata,uint8_t itemlength); +#ifdef RTP_SUPPORT_SDESPRIV + /** Adds an SDES PRIV item described by the function's arguments to the current SDES chunk. */ + int AddSDESPrivateItem(const void *prefixdata,uint8_t prefixlength,const void *valuedata, + uint8_t valuelength); +#endif // RTP_SUPPORT_SDESPRIV + + /** Adds a BYE packet to the compound packet. + * Adds a BYE packet to the compound packet. It will contain \c numssrcs source identifiers specified in + * \c ssrcs and will indicate as reason for leaving the string of length \c reasonlength + * containing data \c reasondata. + */ + int AddBYEPacket(uint32_t *ssrcs,uint8_t numssrcs,const void *reasondata,uint8_t reasonlength); + + /** Adds the APP packet specified by the arguments to the compound packet. + * Adds the APP packet specified by the arguments to the compound packet. Note that \c appdatalen has to be + * a multiple of four. + */ + int AddAPPPacket(uint8_t subtype,uint32_t ssrc,const uint8_t name[4],const void *appdata,size_t appdatalen); + + /** Finishes building the compound packet. + * Finishes building the compound packet. If successful, the RTCPCompoundPacket member functions + * can be used to access the RTCP packet data. + */ + int EndBuild(); +private: + class Buffer + { + public: + Buffer():packetdata(0),packetlength(0) { } + Buffer(uint8_t *data,size_t len):packetdata(data),packetlength(len) { } + + uint8_t *packetdata; + size_t packetlength; + }; + + class Report : public RTPMemoryObject + { + public: + Report(RTPMemoryManager *mgr) : RTPMemoryObject(mgr) + { + headerdata = (uint8_t *)headerdata32; + isSR = false; + headerlength = 0; + } + ~Report() { Clear(); } + + void Clear() + { + std::list<Buffer>::const_iterator it; + for (it = reportblocks.begin() ; it != reportblocks.end() ; it++) + { + if ((*it).packetdata) + RTPDeleteByteArray((*it).packetdata,GetMemoryManager()); + } + reportblocks.clear(); + isSR = false; + headerlength = 0; + } + + size_t NeededBytes() + { + size_t x,n,d,r; + n = reportblocks.size(); + if (n == 0) + { + if (headerlength == 0) + return 0; + x = sizeof(RTCPCommonHeader)+headerlength; + } + else + { + x = n*sizeof(RTCPReceiverReport); + d = n/31; // max 31 reportblocks per report + r = n%31; + if (r != 0) + d++; + x += d*(sizeof(RTCPCommonHeader)+sizeof(uint32_t)); /* header and SSRC */ + if (isSR) + x += sizeof(RTCPSenderReport); + } + return x; + } + + size_t NeededBytesWithExtraReportBlock() + { + size_t x,n,d,r; + n = reportblocks.size() + 1; // +1 for the extra block + x = n*sizeof(RTCPReceiverReport); + d = n/31; // max 31 reportblocks per report + r = n%31; + if (r != 0) + d++; + x += d*(sizeof(RTCPCommonHeader)+sizeof(uint32_t)); /* header and SSRC */ + if (isSR) + x += sizeof(RTCPSenderReport); + return x; + } + + bool isSR; + + uint8_t *headerdata; + uint32_t headerdata32[(sizeof(uint32_t)+sizeof(RTCPSenderReport))/sizeof(uint32_t)]; // either for ssrc and sender info or just ssrc + size_t headerlength; + std::list<Buffer> reportblocks; + }; + + class SDESSource : public RTPMemoryObject + { + public: + SDESSource(uint32_t s,RTPMemoryManager *mgr) : RTPMemoryObject(mgr),ssrc(s),totalitemsize(0) { } + ~SDESSource() + { + std::list<Buffer>::const_iterator it; + for (it = items.begin() ; it != items.end() ; it++) + { + if ((*it).packetdata) + RTPDeleteByteArray((*it).packetdata,GetMemoryManager()); + } + items.clear(); + } + + size_t NeededBytes() + { + size_t x,r; + x = totalitemsize + 1; // +1 for the 0 byte which terminates the item list + r = x%sizeof(uint32_t); + if (r != 0) + x += (sizeof(uint32_t)-r); // make sure it ends on a 32 bit boundary + x += sizeof(uint32_t); // for ssrc + return x; + } + + size_t NeededBytesWithExtraItem(uint8_t itemdatalength) + { + size_t x,r; + x = totalitemsize + sizeof(RTCPSDESHeader) + (size_t)itemdatalength + 1; + r = x%sizeof(uint32_t); + if (r != 0) + x += (sizeof(uint32_t)-r); // make sure it ends on a 32 bit boundary + x += sizeof(uint32_t); // for ssrc + return x; + } + + void AddItem(uint8_t *buf,size_t len) + { + Buffer b(buf,len); + totalitemsize += len; + items.push_back(b); + } + + uint32_t ssrc; + std::list<Buffer> items; + private: + size_t totalitemsize; + }; + + class SDES : public RTPMemoryObject + { + public: + SDES(RTPMemoryManager *mgr) : RTPMemoryObject(mgr) { sdesit = sdessources.end(); } + ~SDES() { Clear(); } + + void Clear() + { + std::list<SDESSource *>::const_iterator it; + + for (it = sdessources.begin() ; it != sdessources.end() ; it++) + RTPDelete(*it,GetMemoryManager()); + sdessources.clear(); + } + + int AddSSRC(uint32_t ssrc) + { + SDESSource *s = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_SDESSOURCE) SDESSource(ssrc,GetMemoryManager()); + if (s == 0) + return ERR_RTP_OUTOFMEM; + sdessources.push_back(s); + sdesit = sdessources.end(); + sdesit--; + return 0; + } + + int AddItem(uint8_t *buf,size_t len) + { + if (sdessources.empty()) + return ERR_RTP_RTCPCOMPPACKBUILDER_NOCURRENTSOURCE; + (*sdesit)->AddItem(buf,len); + return 0; + } + + size_t NeededBytes() + { + std::list<SDESSource *>::const_iterator it; + size_t x = 0; + size_t n,d,r; + + if (sdessources.empty()) + return 0; + + for (it = sdessources.begin() ; it != sdessources.end() ; it++) + x += (*it)->NeededBytes(); + n = sdessources.size(); + d = n/31; + r = n%31; + if (r != 0) + d++; + x += d*sizeof(RTCPCommonHeader); + return x; + } + + size_t NeededBytesWithExtraItem(uint8_t itemdatalength) + { + std::list<SDESSource *>::const_iterator it; + size_t x = 0; + size_t n,d,r; + + if (sdessources.empty()) + return 0; + + for (it = sdessources.begin() ; it != sdesit ; it++) + x += (*it)->NeededBytes(); + x += (*sdesit)->NeededBytesWithExtraItem(itemdatalength); + n = sdessources.size(); + d = n/31; + r = n%31; + if (r != 0) + d++; + x += d*sizeof(RTCPCommonHeader); + return x; + } + + size_t NeededBytesWithExtraSource() + { + std::list<SDESSource *>::const_iterator it; + size_t x = 0; + size_t n,d,r; + + if (sdessources.empty()) + return 0; + + for (it = sdessources.begin() ; it != sdessources.end() ; it++) + x += (*it)->NeededBytes(); + + // for the extra source we'll need at least 8 bytes (ssrc and four 0 bytes) + x += sizeof(uint32_t)*2; + + n = sdessources.size() + 1; // also, the number of sources will increase + d = n/31; + r = n%31; + if (r != 0) + d++; + x += d*sizeof(RTCPCommonHeader); + return x; + } + + std::list<SDESSource *> sdessources; + private: + std::list<SDESSource *>::const_iterator sdesit; + }; + + size_t maximumpacketsize; + uint8_t *buffer; + bool external; + bool arebuilding; + + Report report; + SDES sdes; + + std::list<Buffer> byepackets; + size_t byesize; + + std::list<Buffer> apppackets; + size_t appsize; + + void ClearBuildBuffers(); +}; + +#endif // RTCPCOMPOUNDPACKETBUILDER_H + diff --git a/src/rtcppacket.cpp b/src/rtcppacket.cpp new file mode 100644 index 0000000..76f55ba --- /dev/null +++ b/src/rtcppacket.cpp @@ -0,0 +1,71 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcppacket.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +#ifdef RTPDEBUG + +void RTCPPacket::Dump() +{ + switch(packettype) + { + case SR: + std::cout << "RTCP Sender Report "; + break; + case RR: + std::cout << "RTCP Receiver Report "; + break; + case SDES: + std::cout << "RTCP Source Description "; + break; + case APP: + std::cout << "RTCP APP Packet "; + break; + case BYE: + std::cout << "RTCP Bye Packet "; + break; + case Unknown: + std::cout << "Unknown RTCP Packet "; + break; + default: + std::cout << "ERROR: Invalid packet type!" << std::endl; + } + std::cout << "Length: " << datalen; + std::cout << std::endl; +} + +#endif // RTPDEBUG diff --git a/src/rtcppacket.h b/src/rtcppacket.h new file mode 100644 index 0000000..1062574 --- /dev/null +++ b/src/rtcppacket.h @@ -0,0 +1,89 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcppacket.h + */ + +#ifndef RTCPPACKET_H + +#define RTCPPACKET_H + +#include "rtpconfig.h" +#include "rtptypes.h" + +class RTCPCompoundPacket; + +/** Base class for specific types of RTCP packets. */ +class RTCPPacket +{ +public: + /** Identifies the specific kind of RTCP packet. */ + enum PacketType + { + SR, /**< An RTCP sender report. */ + RR, /**< An RTCP receiver report. */ + SDES, /**< An RTCP source description packet. */ + BYE, /**< An RTCP bye packet. */ + APP, /**< An RTCP packet containing application specific data. */ + Unknown /**< The type of RTCP packet was not recognized. */ + }; +protected: + RTCPPacket(PacketType t,uint8_t *d,size_t dlen) : data(d),datalen(dlen),packettype(t) { knownformat = false; } +public: + virtual ~RTCPPacket() { } + + /** Returns \c true if the subclass was able to interpret the data and \c false otherwise. */ + bool IsKnownFormat() const { return knownformat; } + + /** Returns the actual packet type which the subclass implements. */ + PacketType GetPacketType() const { return packettype; } + + /** Returns a pointer to the data of this RTCP packet. */ + uint8_t *GetPacketData() { return data; } + + /** Returns the length of this RTCP packet. */ + size_t GetPacketLength() const { return datalen; } + +#ifdef RTPDEBUG + virtual void Dump(); +#endif // RTPDEBUG +protected: + uint8_t *data; + size_t datalen; + bool knownformat; +private: + const PacketType packettype; +}; + +#endif // RTCPPACKET_H + diff --git a/src/rtcppacketbuilder.cpp b/src/rtcppacketbuilder.cpp new file mode 100644 index 0000000..7e07d8f --- /dev/null +++ b/src/rtcppacketbuilder.cpp @@ -0,0 +1,736 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcppacketbuilder.h" +#include "rtpsources.h" +#include "rtppacketbuilder.h" +#include "rtcpscheduler.h" +#include "rtpsourcedata.h" +#include "rtcpcompoundpacketbuilder.h" +#include "rtpmemorymanager.h" + +#include "rtpdebug.h" + +RTCPPacketBuilder::RTCPPacketBuilder(RTPSources &s,RTPPacketBuilder &pb,RTPMemoryManager *mgr) + : RTPMemoryObject(mgr),sources(s),rtppacketbuilder(pb),prevbuildtime(0,0),transmissiondelay(0,0),ownsdesinfo(mgr) +{ + init = false; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTCPPacketBuilder::~RTCPPacketBuilder() +{ + Destroy(); +} + +int RTCPPacketBuilder::Init(size_t maxpacksize,double tsunit,const void *cname,size_t cnamelen) +{ + if (init) + return ERR_RTP_RTCPPACKETBUILDER_ALREADYINIT; + if (maxpacksize < RTP_MINPACKETSIZE) + return ERR_RTP_RTCPPACKETBUILDER_ILLEGALMAXPACKSIZE; + if (tsunit < 0.0) + return ERR_RTP_RTCPPACKETBUILDER_ILLEGALTIMESTAMPUNIT; + + if (cnamelen>255) + cnamelen = 255; + + maxpacketsize = maxpacksize; + timestampunit = tsunit; + + int status; + + if ((status = ownsdesinfo.SetCNAME((const uint8_t *)cname,cnamelen)) < 0) + return status; + + ClearAllSourceFlags(); + + interval_name = -1; + interval_email = -1; + interval_location = -1; + interval_phone = -1; + interval_tool = -1; + interval_note = -1; + + sdesbuildcount = 0; + transmissiondelay = RTPTime(0,0); + + firstpacket = true; + processingsdes = false; + init = true; + return 0; +} + +void RTCPPacketBuilder::Destroy() +{ + if (!init) + return; + ownsdesinfo.Clear(); + init = false; +} + +int RTCPPacketBuilder::BuildNextPacket(RTCPCompoundPacket **pack) +{ + if (!init) + return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; + + RTCPCompoundPacketBuilder *rtcpcomppack; + int status; + bool sender = false; + RTPSourceData *srcdat; + + *pack = 0; + + rtcpcomppack = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPCOMPOUNDPACKETBUILDER) RTCPCompoundPacketBuilder(GetMemoryManager()); + if (rtcpcomppack == 0) + return ERR_RTP_OUTOFMEM; + + if ((status = rtcpcomppack->InitBuild(maxpacketsize)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + if ((srcdat = sources.GetOwnSourceInfo()) != 0) + { + if (srcdat->IsSender()) + sender = true; + } + + uint32_t ssrc = rtppacketbuilder.GetSSRC(); + RTPTime curtime = RTPTime::CurrentTime(); + + if (sender) + { + RTPTime rtppacktime = rtppacketbuilder.GetPacketTime(); + uint32_t rtppacktimestamp = rtppacketbuilder.GetPacketTimestamp(); + uint32_t packcount = rtppacketbuilder.GetPacketCount(); + uint32_t octetcount = rtppacketbuilder.GetPayloadOctetCount(); + RTPTime diff = curtime; + diff -= rtppacktime; + diff += transmissiondelay; // the sample being sampled at this very instant will need a larger timestamp + + uint32_t tsdiff = (uint32_t)((diff.GetDouble()/timestampunit)+0.5); + uint32_t rtptimestamp = rtppacktimestamp+tsdiff; + RTPNTPTime ntptimestamp = curtime.GetNTPTime(); + + if ((status = rtcpcomppack->StartSenderReport(ssrc,ntptimestamp,rtptimestamp,packcount,octetcount)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + } + else + { + if ((status = rtcpcomppack->StartReceiverReport(ssrc)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + } + + uint8_t *owncname; + size_t owncnamelen; + + owncname = ownsdesinfo.GetCNAME(&owncnamelen); + + if ((status = rtcpcomppack->AddSDESSource(ssrc)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::CNAME,owncname,owncnamelen)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + + if (!processingsdes) + { + int added,skipped; + bool full,atendoflist; + + if ((status = FillInReportBlocks(rtcpcomppack,curtime,sources.GetTotalCount(),&full,&added,&skipped,&atendoflist)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + if (full && added == 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + } + + if (!full) + { + processingsdes = true; + sdesbuildcount++; + + ClearAllSourceFlags(); + + doname = false; + doemail = false; + doloc = false; + dophone = false; + dotool = false; + donote = false; + if (interval_name > 0 && ((sdesbuildcount%interval_name) == 0)) doname = true; + if (interval_email > 0 && ((sdesbuildcount%interval_email) == 0)) doemail = true; + if (interval_location > 0 && ((sdesbuildcount%interval_location) == 0)) doloc = true; + if (interval_phone > 0 && ((sdesbuildcount%interval_phone) == 0)) dophone = true; + if (interval_tool > 0 && ((sdesbuildcount%interval_tool) == 0)) dotool = true; + if (interval_note > 0 && ((sdesbuildcount%interval_note) == 0)) donote = true; + + bool processedall; + int itemcount; + + if ((status = FillInSDES(rtcpcomppack,&full,&processedall,&itemcount)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + if (processedall) + { + processingsdes = false; + ClearAllSDESFlags(); + if (!full && skipped > 0) + { + // if the packet isn't full and we skipped some + // sources that we already got in a previous packet, + // we can add some of them now + + bool atendoflist; + + if ((status = FillInReportBlocks(rtcpcomppack,curtime,skipped,&full,&added,&skipped,&atendoflist)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + } + } + } + } + else // previous sdes processing wasn't finished + { + bool processedall; + int itemcount; + bool full; + + if ((status = FillInSDES(rtcpcomppack,&full,&processedall,&itemcount)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + if (itemcount == 0) // Big problem: packet size is too small to let any progress happen + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + } + + if (processedall) + { + processingsdes = false; + ClearAllSDESFlags(); + if (!full) + { + // if the packet isn't full and we skipped some + // we can add some report blocks + + int added,skipped; + bool atendoflist; + + if ((status = FillInReportBlocks(rtcpcomppack,curtime,sources.GetTotalCount(),&full,&added,&skipped,&atendoflist)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + if (atendoflist) // filled in all possible sources + ClearAllSourceFlags(); + } + } + } + + if ((status = rtcpcomppack->EndBuild()) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + *pack = rtcpcomppack; + firstpacket = false; + prevbuildtime = curtime; + return 0; +} + +void RTCPPacketBuilder::ClearAllSourceFlags() +{ + if (sources.GotoFirstSource()) + { + do + { + RTPSourceData *srcdat = sources.GetCurrentSourceInfo(); + srcdat->SetProcessedInRTCP(false); + } while (sources.GotoNextSource()); + } +} + +int RTCPPacketBuilder::FillInReportBlocks(RTCPCompoundPacketBuilder *rtcpcomppack,const RTPTime &curtime,int maxcount,bool *full,int *added,int *skipped,bool *atendoflist) +{ + RTPSourceData *srcdat; + int addedcount = 0; + int skippedcount = 0; + bool done = false; + bool filled = false; + bool atend = false; + int status; + + if (sources.GotoFirstSource()) + { + do + { + bool shouldprocess = false; + + srcdat = sources.GetCurrentSourceInfo(); + if (!srcdat->IsOwnSSRC()) // don't send to ourselves + { + if (!srcdat->IsCSRC()) // p 35: no reports should go to CSRCs + { + if (srcdat->INF_HasSentData()) // if this isn't true, INF_GetLastRTPPacketTime() won't make any sense + { + if (firstpacket) + shouldprocess = true; + else + { + // p 35: only if rtp packets were received since the last RTP packet, a report block + // should be added + + RTPTime lastrtptime = srcdat->INF_GetLastRTPPacketTime(); + + if (lastrtptime > prevbuildtime) + shouldprocess = true; + } + } + } + } + + if (shouldprocess) + { + if (srcdat->IsProcessedInRTCP()) // already covered this one + { + skippedcount++; + } + else + { + uint32_t rr_ssrc = srcdat->GetSSRC(); + uint32_t num = srcdat->INF_GetNumPacketsReceivedInInterval(); + uint32_t prevseq = srcdat->INF_GetSavedExtendedSequenceNumber(); + uint32_t curseq = srcdat->INF_GetExtendedHighestSequenceNumber(); + uint32_t expected = curseq-prevseq; + uint8_t fraclost; + + if (expected < num) // got duplicates + fraclost = 0; + else + { + double lost = (double)(expected-num); + double frac = lost/((double)expected); + fraclost = (uint8_t)(frac*256.0); + } + + expected = curseq-srcdat->INF_GetBaseSequenceNumber(); + num = srcdat->INF_GetNumPacketsReceived(); + + uint32_t diff = expected-num; + int32_t *packlost = (int32_t *)&diff; + + uint32_t jitter = srcdat->INF_GetJitter(); + uint32_t lsr; + uint32_t dlsr; + + if (!srcdat->SR_HasInfo()) + { + lsr = 0; + dlsr = 0; + } + else + { + RTPNTPTime srtime = srcdat->SR_GetNTPTimestamp(); + uint32_t m = (srtime.GetMSW()&0xFFFF); + uint32_t l = ((srtime.GetLSW()>>16)&0xFFFF); + lsr = ((m<<16)|l); + + RTPTime diff = curtime; + diff -= srcdat->SR_GetReceiveTime(); + double diff2 = diff.GetDouble(); + diff2 *= 65536.0; + dlsr = (uint32_t)diff2; + } + + status = rtcpcomppack->AddReportBlock(rr_ssrc,fraclost,*packlost,curseq,jitter,lsr,dlsr); + if (status < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + done = true; + filled = true; + } + else + return status; + } + else + { + addedcount++; + if (addedcount >= maxcount) + { + done = true; + if (!sources.GotoNextSource()) + atend = true; + } + srcdat->INF_StartNewInterval(); + srcdat->SetProcessedInRTCP(true); + } + } + } + + if (!done) + { + if (!sources.GotoNextSource()) + { + atend = true; + done = true; + } + } + + } while (!done); + } + + *added = addedcount; + *skipped = skippedcount; + *full = filled; + + if (!atend) // search for available sources + { + bool shouldprocess = false; + + do + { + srcdat = sources.GetCurrentSourceInfo(); + if (!srcdat->IsOwnSSRC()) // don't send to ourselves + { + if (!srcdat->IsCSRC()) // p 35: no reports should go to CSRCs + { + if (srcdat->INF_HasSentData()) // if this isn't true, INF_GetLastRTPPacketTime() won't make any sense + { + if (firstpacket) + shouldprocess = true; + else + { + // p 35: only if rtp packets were received since the last RTP packet, a report block + // should be added + + RTPTime lastrtptime = srcdat->INF_GetLastRTPPacketTime(); + + if (lastrtptime > prevbuildtime) + shouldprocess = true; + } + } + } + } + + if (shouldprocess) + { + if (srcdat->IsProcessedInRTCP()) + shouldprocess = false; + } + + if (!shouldprocess) + { + if (!sources.GotoNextSource()) + atend = true; + } + + } while (!atend && !shouldprocess); + } + + *atendoflist = atend; + return 0; +} + +int RTCPPacketBuilder::FillInSDES(RTCPCompoundPacketBuilder *rtcpcomppack,bool *full,bool *processedall,int *added) +{ + int status; + uint8_t *data; + size_t datalen; + + *full = false; + *processedall = false; + *added = 0; + + // We don't need to add a SSRC for our own data, this is still set + // from adding the CNAME + if (doname) + { + if (!ownsdesinfo.ProcessedName()) + { + data = ownsdesinfo.GetName(&datalen); + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::NAME,data,datalen)) < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + *full = true; + return 0; + } + } + (*added)++; + ownsdesinfo.SetProcessedName(true); + } + } + if (doemail) + { + if (!ownsdesinfo.ProcessedEMail()) + { + data = ownsdesinfo.GetEMail(&datalen); + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::EMAIL,data,datalen)) < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + *full = true; + return 0; + } + } + (*added)++; + ownsdesinfo.SetProcessedEMail(true); + } + } + if (doloc) + { + if (!ownsdesinfo.ProcessedLocation()) + { + data = ownsdesinfo.GetLocation(&datalen); + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::LOC,data,datalen)) < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + *full = true; + return 0; + } + } + (*added)++; + ownsdesinfo.SetProcessedLocation(true); + } + } + if (dophone) + { + if (!ownsdesinfo.ProcessedPhone()) + { + data = ownsdesinfo.GetPhone(&datalen); + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::PHONE,data,datalen)) < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + *full = true; + return 0; + } + } + (*added)++; + ownsdesinfo.SetProcessedPhone(true); + } + } + if (dotool) + { + if (!ownsdesinfo.ProcessedTool()) + { + data = ownsdesinfo.GetTool(&datalen); + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::TOOL,data,datalen)) < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + *full = true; + return 0; + } + } + (*added)++; + ownsdesinfo.SetProcessedTool(true); + } + } + if (donote) + { + if (!ownsdesinfo.ProcessedNote()) + { + data = ownsdesinfo.GetNote(&datalen); + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::NOTE,data,datalen)) < 0) + { + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + { + *full = true; + return 0; + } + } + (*added)++; + ownsdesinfo.SetProcessedNote(true); + } + } + + *processedall = true; + return 0; +} + +void RTCPPacketBuilder::ClearAllSDESFlags() +{ + ownsdesinfo.ClearFlags(); +} + +int RTCPPacketBuilder::BuildBYEPacket(RTCPCompoundPacket **pack,const void *reason,size_t reasonlength,bool useSRifpossible) +{ + if (!init) + return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; + + RTCPCompoundPacketBuilder *rtcpcomppack; + int status; + + if (reasonlength > 255) + reasonlength = 255; + + *pack = 0; + + rtcpcomppack = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTCPCOMPOUNDPACKETBUILDER) RTCPCompoundPacketBuilder(GetMemoryManager()); + if (rtcpcomppack == 0) + return ERR_RTP_OUTOFMEM; + + if ((status = rtcpcomppack->InitBuild(maxpacketsize)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + uint32_t ssrc = rtppacketbuilder.GetSSRC(); + bool useSR = false; + + if (useSRifpossible) + { + RTPSourceData *srcdat; + + if ((srcdat = sources.GetOwnSourceInfo()) != 0) + { + if (srcdat->IsSender()) + useSR = true; + } + } + + if (useSR) + { + RTPTime curtime = RTPTime::CurrentTime(); + RTPTime rtppacktime = rtppacketbuilder.GetPacketTime(); + uint32_t rtppacktimestamp = rtppacketbuilder.GetPacketTimestamp(); + uint32_t packcount = rtppacketbuilder.GetPacketCount(); + uint32_t octetcount = rtppacketbuilder.GetPayloadOctetCount(); + RTPTime diff = curtime; + diff -= rtppacktime; + + uint32_t tsdiff = (uint32_t)((diff.GetDouble()/timestampunit)+0.5); + uint32_t rtptimestamp = rtppacktimestamp+tsdiff; + RTPNTPTime ntptimestamp = curtime.GetNTPTime(); + + if ((status = rtcpcomppack->StartSenderReport(ssrc,ntptimestamp,rtptimestamp,packcount,octetcount)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + } + else + { + if ((status = rtcpcomppack->StartReceiverReport(ssrc)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + } + + uint8_t *owncname; + size_t owncnamelen; + + owncname = ownsdesinfo.GetCNAME(&owncnamelen); + + if ((status = rtcpcomppack->AddSDESSource(ssrc)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + if ((status = rtcpcomppack->AddSDESNormalItem(RTCPSDESPacket::CNAME,owncname,owncnamelen)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + + uint32_t ssrcs[1]; + + ssrcs[0] = ssrc; + + if ((status = rtcpcomppack->AddBYEPacket(ssrcs,1,(const uint8_t *)reason,reasonlength)) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + if (status == ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT) + return ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON; + return status; + } + + if ((status = rtcpcomppack->EndBuild()) < 0) + { + RTPDelete(rtcpcomppack,GetMemoryManager()); + return status; + } + + *pack = rtcpcomppack; + return 0; +} + diff --git a/src/rtcppacketbuilder.h b/src/rtcppacketbuilder.h new file mode 100644 index 0000000..cf043f0 --- /dev/null +++ b/src/rtcppacketbuilder.h @@ -0,0 +1,224 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcppacketbuilder.h + */ + +#ifndef RTCPPACKETBUILDER_H + +#define RTCPPACKETBUILDER_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#include "rtperrors.h" +#include "rtcpsdesinfo.h" +#include "rtptimeutilities.h" +#include "rtpmemoryobject.h" + +class RTPSources; +class RTPPacketBuilder; +class RTCPScheduler; +class RTCPCompoundPacket; +class RTCPCompoundPacketBuilder; + +/** This class can be used to build RTCP compound packets, on a higher level than the RTCPCompoundPacketBuilder. + * The class RTCPPacketBuilder can be used to build RTCP compound packets. This class is more high-level + * than the RTCPCompoundPacketBuilder class: it uses the information of an RTPPacketBuilder instance and of + * an RTPSources instance to automatically generate the next compound packet which should be sent. It also + * provides functions to determine when SDES items other than the CNAME item should be sent. + */ +class RTCPPacketBuilder : public RTPMemoryObject +{ +public: + /** Creates an RTCPPacketBuilder instance. + * Creates an instance which will use the source table \c sources and the RTP packet builder + * \c rtppackbuilder to determine the information for the next RTCP compound packet. Optionally, + * the memory manager \c mgr can be installed. + */ + RTCPPacketBuilder(RTPSources &sources,RTPPacketBuilder &rtppackbuilder, RTPMemoryManager *mgr = 0); + ~RTCPPacketBuilder(); + + /** Initializes the builder. + * Initializes the builder to use the maximum allowed packet size \c maxpacksize, timestamp unit + * \c timestampunit and the SDES CNAME item specified by \c cname with length \c cnamelen. + * The timestamp unit is defined as a time interval divided by the timestamp interval corresponding to + * that interval: for 8000 Hz audio this would be 1/8000. + */ + int Init(size_t maxpacksize,double timestampunit,const void *cname,size_t cnamelen); + + /** Cleans up the builder. */ + void Destroy(); + + /** Sets the timestamp unit to be used to \c tsunit. + * Sets the timestamp unit to be used to \c tsunit. The timestamp unit is defined as a time interval + * divided by the timestamp interval corresponding to that interval: for 8000 Hz audio this would + * be 1/8000. + */ + int SetTimestampUnit(double tsunit) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; if (tsunit < 0) return ERR_RTP_RTCPPACKETBUILDER_ILLEGALTIMESTAMPUNIT; timestampunit = tsunit; return 0; } + + /** Sets the maximum size allowed size of an RTCP compound packet to \c maxpacksize. */ + int SetMaximumPacketSize(size_t maxpacksize) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; if (maxpacksize < RTP_MINPACKETSIZE) return ERR_RTP_RTCPPACKETBUILDER_ILLEGALMAXPACKSIZE; maxpacketsize = maxpacksize; return 0; } + + /** This function allows you to inform RTCP packet builder about the delay between sampling the first + * sample of a packet and sending the packet. + * This function allows you to inform RTCP packet builder about the delay between sampling the first + * sample of a packet and sending the packet. This delay is taken into account when calculating the + * relation between RTP timestamp and wallclock time, used for inter-media synchronization. + */ + int SetPreTransmissionDelay(const RTPTime &delay) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; transmissiondelay = delay; return 0; } + + /** Builds the next RTCP compound packet which should be sent and stores it in \c pack. */ + int BuildNextPacket(RTCPCompoundPacket **pack); + + /** Builds a BYE packet with reason for leaving specified by \c reason and length \c reasonlength. + * Builds a BYE packet with reason for leaving specified by \c reason and length \c reasonlength. If + * \c useSRifpossible is set to \c true, the RTCP compound packet will start with a sender report if + * allowed. Otherwise, a receiver report is used. + */ + int BuildBYEPacket(RTCPCompoundPacket **pack,const void *reason,size_t reasonlength,bool useSRifpossible = true); + + /** Sets the RTCP interval for the SDES name item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES name item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetNameInterval(int count) { if (!init) return; interval_name = count; } + + /** Sets the RTCP interval for the SDES e-mail item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES e-mail item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetEMailInterval(int count) { if (!init) return; interval_email = count; } + + /** Sets the RTCP interval for the SDES location item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES location item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetLocationInterval(int count) { if (!init) return; interval_location = count; } + + /** Sets the RTCP interval for the SDES phone item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES phone item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetPhoneInterval(int count) { if (!init) return; interval_phone = count; } + + /** Sets the RTCP interval for the SDES tool item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES tool item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetToolInterval(int count) { if (!init) return; interval_tool = count; } + + /** Sets the RTCP interval for the SDES note item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES note item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetNoteInterval(int count) { if (!init) return; interval_note = count; } + + /** Sets the SDES name item for the local participant to the value \c s with length \c len. */ + int SetLocalName(const void *s,size_t len) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; return ownsdesinfo.SetName((const uint8_t *)s,len); } + + /** Sets the SDES e-mail item for the local participant to the value \c s with length \c len. */ + int SetLocalEMail(const void *s,size_t len) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; return ownsdesinfo.SetEMail((const uint8_t *)s,len); } + + /** Sets the SDES location item for the local participant to the value \c s with length \c len. */ + int SetLocalLocation(const void *s,size_t len) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; return ownsdesinfo.SetLocation((const uint8_t *)s,len); } + + /** Sets the SDES phone item for the local participant to the value \c s with length \c len. */ + int SetLocalPhone(const void *s,size_t len) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; return ownsdesinfo.SetPhone((const uint8_t *)s,len); } + + /** Sets the SDES tool item for the local participant to the value \c s with length \c len. */ + int SetLocalTool(const void *s,size_t len) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; return ownsdesinfo.SetTool((const uint8_t *)s,len); } + + /** Sets the SDES note item for the local participant to the value \c s with length \c len. */ + int SetLocalNote(const void *s,size_t len) { if (!init) return ERR_RTP_RTCPPACKETBUILDER_NOTINIT; return ownsdesinfo.SetNote((const uint8_t *)s,len); } + + /** Returns the own CNAME item with length \c len */ + uint8_t *GetLocalCNAME(size_t *len) const { if (!init) return 0; return ownsdesinfo.GetCNAME(len); } +private: + void ClearAllSourceFlags(); + int FillInReportBlocks(RTCPCompoundPacketBuilder *pack,const RTPTime &curtime,int maxcount,bool *full,int *added,int *skipped,bool *atendoflist); + int FillInSDES(RTCPCompoundPacketBuilder *pack,bool *full,bool *processedall,int *added); + void ClearAllSDESFlags(); + + RTPSources &sources; + RTPPacketBuilder &rtppacketbuilder; + + bool init; + size_t maxpacketsize; + double timestampunit; + bool firstpacket; + RTPTime prevbuildtime,transmissiondelay; + + class RTCPSDESInfoInternal : public RTCPSDESInfo + { + public: + RTCPSDESInfoInternal(RTPMemoryManager *mgr) : RTCPSDESInfo(mgr) { ClearFlags(); } + void ClearFlags() { pname = false; pemail = false; plocation = false; pphone = false; ptool = false; pnote = false; } + bool ProcessedName() const { return pname; } + bool ProcessedEMail() const { return pemail; } + bool ProcessedLocation() const { return plocation; } + bool ProcessedPhone() const { return pphone; } + bool ProcessedTool() const { return ptool; } + bool ProcessedNote() const { return pnote; } + void SetProcessedName(bool v) { pname = v; } + void SetProcessedEMail(bool v) { pemail = v; } + void SetProcessedLocation(bool v) { plocation = v; } + void SetProcessedPhone(bool v) { pphone = v; } + void SetProcessedTool(bool v) { ptool = v; } + void SetProcessedNote(bool v) { pnote = v; } + private: + bool pname,pemail,plocation,pphone,ptool,pnote; + }; + + RTCPSDESInfoInternal ownsdesinfo; + int interval_name,interval_email,interval_location; + int interval_phone,interval_tool,interval_note; + bool doname,doemail,doloc,dophone,dotool,donote; + bool processingsdes; + + int sdesbuildcount; +}; + +#endif // RTCPPACKETBUILDER_H + diff --git a/src/rtcprrpacket.cpp b/src/rtcprrpacket.cpp new file mode 100644 index 0000000..42cf969 --- /dev/null +++ b/src/rtcprrpacket.cpp @@ -0,0 +1,94 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcprrpacket.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTCPRRPacket::RTCPRRPacket(uint8_t *data,size_t datalength) + : RTCPPacket(RR,data,datalength) +{ + knownformat = false; + + RTCPCommonHeader *hdr; + size_t len = datalength; + size_t expectedlength; + + hdr = (RTCPCommonHeader *)data; + if (hdr->padding) + { + uint8_t padcount = data[datalength-1]; + if ((padcount & 0x03) != 0) // not a multiple of four! (see rfc 3550 p 37) + return; + if (((size_t)padcount) >= len) + return; + len -= (size_t)padcount; + } + + expectedlength = sizeof(RTCPCommonHeader)+sizeof(uint32_t); + expectedlength += sizeof(RTCPReceiverReport)*((int)hdr->count); + + if (expectedlength != len) + return; + + knownformat = true; +} + +#ifdef RTPDEBUG +void RTCPRRPacket::Dump() +{ + RTCPPacket::Dump(); + if (!IsKnownFormat()) + std::cout << " Unknown format" << std::endl; + else + { + int num = GetReceptionReportCount(); + int i; + + std::cout << " SSRC of sender: " << GetSenderSSRC() << std::endl; + for (i = 0 ; i < num ; i++) + { + std::cout << " Report block " << i << std::endl; + std::cout << " SSRC: " << GetSSRC(i) << std::endl; + std::cout << " Fraction lost: " << (uint32_t)GetFractionLost(i) << std::endl; + std::cout << " Packets lost: " << GetLostPacketCount(i) << std::endl; + std::cout << " Seq. nr.: " << GetExtendedHighestSequenceNumber(i) << std::endl; + std::cout << " Jitter: " << GetJitter(i) << std::endl; + std::cout << " LSR: " << GetLSR(i) << std::endl; + std::cout << " DLSR: " << GetDLSR(i) << std::endl; + } + } +} +#endif // RTPDEBUG diff --git a/src/rtcprrpacket.h b/src/rtcprrpacket.h new file mode 100644 index 0000000..6e48f16 --- /dev/null +++ b/src/rtcprrpacket.h @@ -0,0 +1,201 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcprrpacket.h + */ + +#ifndef RTCPRRPACKET_H + +#define RTCPRRPACKET_H + +#include "rtpconfig.h" +#include "rtcppacket.h" +#include "rtpstructs.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +class RTCPCompoundPacket; + +/** Describes an RTCP receiver report packet. */ +class RTCPRRPacket : public RTCPPacket +{ +public: + /** Creates an instance based on the data in \c data with length \c datalen. + * Creates an instance based on the data in \c data with length \c datalen. Since the \c data pointer + * is referenced inside the class (no copy of the data is made) one must make sure that the memory it points + * to is valid as long as the class instance exists. + */ + RTCPRRPacket(uint8_t *data,size_t datalen); + ~RTCPRRPacket() { } + + /** Returns the SSRC of the participant who sent this packet. */ + uint32_t GetSenderSSRC() const; + + /** Returns the number of reception report blocks present in this packet. */ + int GetReceptionReportCount() const; + + /** Returns the SSRC of the reception report block described by \c index which may have a value + * from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetSSRC(int index) const; + + /** Returns the `fraction lost' field of the reception report described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint8_t GetFractionLost(int index) const; + + /** Returns the number of lost packets in the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + int32_t GetLostPacketCount(int index) const; + + /** Returns the extended highest sequence number of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetExtendedHighestSequenceNumber(int index) const; + + /** Returns the jitter field of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetJitter(int index) const; + + /** Returns the LSR field of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetLSR(int index) const; + + /** Returns the DLSR field of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetDLSR(int index) const; + + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + RTCPReceiverReport *GotoReport(int index) const; +}; + +inline uint32_t RTCPRRPacket::GetSenderSSRC() const +{ + if (!knownformat) + return 0; + + uint32_t *ssrcptr = (uint32_t *)(data+sizeof(RTCPCommonHeader)); + return ntohl(*ssrcptr); +} +inline int RTCPRRPacket::GetReceptionReportCount() const +{ + if (!knownformat) + return 0; + RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; + return ((int)hdr->count); +} + +inline RTCPReceiverReport *RTCPRRPacket::GotoReport(int index) const +{ + RTCPReceiverReport *r = (RTCPReceiverReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)+index*sizeof(RTCPReceiverReport)); + return r; +} + +inline uint32_t RTCPRRPacket::GetSSRC(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->ssrc); +} + +inline uint8_t RTCPRRPacket::GetFractionLost(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return r->fractionlost; +} + +inline int32_t RTCPRRPacket::GetLostPacketCount(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + uint32_t count = ((uint32_t)r->packetslost[2])|(((uint32_t)r->packetslost[1])<<8)|(((uint32_t)r->packetslost[0])<<16); + if ((count&0x00800000) != 0) // test for negative number + count |= 0xFF000000; + int32_t *count2 = (int32_t *)(&count); + return (*count2); +} + +inline uint32_t RTCPRRPacket::GetExtendedHighestSequenceNumber(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->exthighseqnr); +} + +inline uint32_t RTCPRRPacket::GetJitter(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->jitter); +} + +inline uint32_t RTCPRRPacket::GetLSR(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->lsr); +} + +inline uint32_t RTCPRRPacket::GetDLSR(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->dlsr); +} + +#endif // RTCPRRPACKET_H + diff --git a/src/rtcpscheduler.cpp b/src/rtcpscheduler.cpp new file mode 100644 index 0000000..fa8510f --- /dev/null +++ b/src/rtcpscheduler.cpp @@ -0,0 +1,416 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpscheduler.h" +#include "rtpsources.h" +#include "rtpdefines.h" +#include "rtcppacket.h" +#include "rtppacket.h" +#include "rtcpcompoundpacket.h" +#include "rtpsourcedata.h" + +#include "rtpdebug.h" + +#define RTCPSCHED_MININTERVAL 1.0 + +RTCPSchedulerParams::RTCPSchedulerParams() : mininterval(RTCP_DEFAULTMININTERVAL) +{ + bandwidth = 1000; // TODO What is a good value here? + senderfraction = RTCP_DEFAULTSENDERFRACTION; + usehalfatstartup = RTCP_DEFAULTHALFATSTARTUP; + immediatebye = RTCP_DEFAULTIMMEDIATEBYE; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTCPSchedulerParams::~RTCPSchedulerParams() +{ +} + +int RTCPSchedulerParams::SetRTCPBandwidth(double bw) +{ + if (bw < 0.0) + return ERR_RTP_SCHEDPARAMS_INVALIDBANDWIDTH; + bandwidth = bw; + return 0; +} + +int RTCPSchedulerParams::SetSenderBandwidthFraction(double fraction) +{ + if (fraction < 0.0 || fraction > 1.0) + return ERR_RTP_SCHEDPARAMS_BADFRACTION; + senderfraction = fraction; + return 0; +} + +int RTCPSchedulerParams::SetMinimumTransmissionInterval(const RTPTime &t) +{ + double t2 = t.GetDouble(); + + if (t2 < RTCPSCHED_MININTERVAL) + return ERR_RTP_SCHEDPARAMS_BADMINIMUMINTERVAL; + + mininterval = t; + return 0; +} + +RTCPScheduler::RTCPScheduler(RTPSources &s) : sources(s),nextrtcptime(0,0),prevrtcptime(0,0) +{ + Reset(); +} + +RTCPScheduler::~RTCPScheduler() +{ +} + +void RTCPScheduler::Reset() +{ + headeroverhead = 0; // user has to set this to an appropriate value + hassentrtcp = false; + firstcall = true; + avgrtcppacksize = 1000; // TODO: what is a good value for this? + byescheduled = false; + sendbyenow = false; +} + +void RTCPScheduler::AnalyseIncoming(RTCPCompoundPacket &rtcpcomppack) +{ + bool isbye = false; + RTCPPacket *p; + + rtcpcomppack.GotoFirstPacket(); + while (!isbye && ((p = rtcpcomppack.GetNextPacket()) != 0)) + { + if (p->GetPacketType() == RTCPPacket::BYE) + isbye = true; + } + + if (!isbye) + { + size_t packsize = headeroverhead+rtcpcomppack.GetCompoundPacketLength(); + avgrtcppacksize = (size_t)((1.0/16.0)*((double)packsize)+(15.0/16.0)*((double)avgrtcppacksize)); + } + else + { + if (byescheduled) + { + size_t packsize = headeroverhead+rtcpcomppack.GetCompoundPacketLength(); + avgbyepacketsize = (size_t)((1.0/16.0)*((double)packsize)+(15.0/16.0)*((double)avgbyepacketsize)); + byemembers++; + } + } +} + +void RTCPScheduler::AnalyseOutgoing(RTCPCompoundPacket &rtcpcomppack) +{ + bool isbye = false; + RTCPPacket *p; + + rtcpcomppack.GotoFirstPacket(); + while (!isbye && ((p = rtcpcomppack.GetNextPacket()) != 0)) + { + if (p->GetPacketType() == RTCPPacket::BYE) + isbye = true; + } + + if (!isbye) + { + size_t packsize = headeroverhead+rtcpcomppack.GetCompoundPacketLength(); + avgrtcppacksize = (size_t)((1.0/16.0)*((double)packsize)+(15.0/16.0)*((double)avgrtcppacksize)); + } + + hassentrtcp = true; +} + +RTPTime RTCPScheduler::GetTransmissionDelay() +{ + if (firstcall) + { + firstcall = false; + prevrtcptime = RTPTime::CurrentTime(); + pmembers = sources.GetActiveMemberCount(); + CalculateNextRTCPTime(); + } + + RTPTime curtime = RTPTime::CurrentTime(); + + if (curtime > nextrtcptime) // packet should be sent + return RTPTime(0,0); + + RTPTime diff = nextrtcptime; + diff -= curtime; + + return diff; +} + +bool RTCPScheduler::IsTime() +{ + if (firstcall) + { + firstcall = false; + prevrtcptime = RTPTime::CurrentTime(); + pmembers = sources.GetActiveMemberCount(); + CalculateNextRTCPTime(); + return false; + } + + RTPTime currenttime = RTPTime::CurrentTime(); + +// // TODO: for debugging +// double diff = nextrtcptime.GetDouble() - currenttime.GetDouble(); +// +// std::cout << "Delay till next RTCP interval: " << diff << std::endl; + + if (currenttime < nextrtcptime) // timer has not yet expired + return false; + + RTPTime checktime(0,0); + + if (!byescheduled) + { + bool aresender = false; + RTPSourceData *srcdat; + + if ((srcdat = sources.GetOwnSourceInfo()) != 0) + aresender = srcdat->IsSender(); + + checktime = CalculateTransmissionInterval(aresender); + } + else + checktime = CalculateBYETransmissionInterval(); + +// std::cout << "Calculated checktime: " << checktime.GetDouble() << std::endl; + + checktime += prevrtcptime; + + if (checktime <= currenttime) // Okay + { + byescheduled = false; + prevrtcptime = currenttime; + pmembers = sources.GetActiveMemberCount(); + CalculateNextRTCPTime(); + return true; + } + +// std::cout << "New delay: " << nextrtcptime.GetDouble() - currenttime.GetDouble() << std::endl; + + nextrtcptime = checktime; + pmembers = sources.GetActiveMemberCount(); + + return false; +} + +void RTCPScheduler::CalculateNextRTCPTime() +{ + bool aresender = false; + RTPSourceData *srcdat; + + if ((srcdat = sources.GetOwnSourceInfo()) != 0) + aresender = srcdat->IsSender(); + + nextrtcptime = RTPTime::CurrentTime(); + nextrtcptime += CalculateTransmissionInterval(aresender); +} + +RTPTime RTCPScheduler::CalculateDeterministicInterval(bool sender /* = false */) +{ + int numsenders = sources.GetSenderCount(); + int numtotal = sources.GetActiveMemberCount(); + +// std::cout << "CalculateDeterministicInterval" << std::endl; +// std::cout << " numsenders: " << numsenders << std::endl; +// std::cout << " numtotal: " << numtotal << std::endl; + + // Try to avoid division by zero: + if (numtotal == 0) + numtotal++; + + double sfraction = ((double)numsenders)/((double)numtotal); + double C,n; + + if (sfraction <= schedparams.GetSenderBandwidthFraction()) + { + if (sender) + { + C = ((double)avgrtcppacksize)/(schedparams.GetSenderBandwidthFraction()*schedparams.GetRTCPBandwidth()); + n = (double)numsenders; + } + else + { + C = ((double)avgrtcppacksize)/((1.0-schedparams.GetSenderBandwidthFraction())*schedparams.GetRTCPBandwidth()); + n = (double)(numtotal-numsenders); + } + } + else + { + C = ((double)avgrtcppacksize)/schedparams.GetRTCPBandwidth(); + n = (double)numtotal; + } + + RTPTime Tmin = schedparams.GetMinimumTransmissionInterval(); + double tmin = Tmin.GetDouble(); + + if (!hassentrtcp && schedparams.GetUseHalfAtStartup()) + tmin /= 2.0; + + double ntimesC = n*C; + double Td = (tmin>ntimesC)?tmin:ntimesC; + + // TODO: for debugging +// std::cout << " Td: " << Td << std::endl; + + return RTPTime(Td); +} + +RTPTime RTCPScheduler::CalculateTransmissionInterval(bool sender) +{ + RTPTime Td = CalculateDeterministicInterval(sender); + double td,mul,T; + +// std::cout << "CalculateTransmissionInterval" << std::endl; + + td = Td.GetDouble(); + mul = rtprand.GetRandomDouble()+0.5; // gives random value between 0.5 and 1.5 + T = (td*mul)/1.21828; // see RFC 3550 p 30 + +// std::cout << " Td: " << td << std::endl; +// std::cout << " mul: " << mul << std::endl; +// std::cout << " T: " << T << std::endl; + + return RTPTime(T); +} + +void RTCPScheduler::PerformReverseReconsideration() +{ + if (firstcall) + return; + + double diff1,diff2; + int members = sources.GetActiveMemberCount(); + + RTPTime tc = RTPTime::CurrentTime(); + RTPTime tn_min_tc = nextrtcptime; + + if (tn_min_tc > tc) + tn_min_tc -= tc; + else + tn_min_tc = RTPTime(0,0); + +// std::cout << "+tn_min_tc0 " << nextrtcptime.GetDouble()-tc.GetDouble() << std::endl; +// std::cout << "-tn_min_tc0 " << -nextrtcptime.GetDouble()+tc.GetDouble() << std::endl; +// std::cout << "tn_min_tc " << tn_min_tc.GetDouble() << std::endl; + + RTPTime tc_min_tp = tc; + + if (tc_min_tp > prevrtcptime) + tc_min_tp -= prevrtcptime; + else + tc_min_tp = 0; + + if (pmembers == 0) // avoid division by zero + pmembers++; + + diff1 = (((double)members)/((double)pmembers))*tn_min_tc.GetDouble(); + diff2 = (((double)members)/((double)pmembers))*tc_min_tp.GetDouble(); + + nextrtcptime = tc; + prevrtcptime = tc; + nextrtcptime += RTPTime(diff1); + prevrtcptime -= RTPTime(diff2); + + pmembers = members; +} + +void RTCPScheduler::ScheduleBYEPacket(size_t packetsize) +{ + if (byescheduled) + return; + + if (firstcall) + { + firstcall = false; + pmembers = sources.GetActiveMemberCount(); + } + + byescheduled = true; + avgbyepacketsize = packetsize+headeroverhead; + + // For now, we will always use the BYE backoff algorithm as described in rfc 3550 p 33 + + byemembers = 1; + pbyemembers = 1; + + if (schedparams.GetRequestImmediateBYE() && sources.GetActiveMemberCount() < 50) // p 34 (top) + sendbyenow = true; + else + sendbyenow = false; + + prevrtcptime = RTPTime::CurrentTime(); + nextrtcptime = prevrtcptime; + nextrtcptime += CalculateBYETransmissionInterval(); +} + +void RTCPScheduler::ActiveMemberDecrease() +{ + if (sources.GetActiveMemberCount() < pmembers) + PerformReverseReconsideration(); +} + +RTPTime RTCPScheduler::CalculateBYETransmissionInterval() +{ + if (!byescheduled) + return RTPTime(0,0); + + if (sendbyenow) + return RTPTime(0,0); + + double C,n; + + C = ((double)avgbyepacketsize)/((1.0-schedparams.GetSenderBandwidthFraction())*schedparams.GetRTCPBandwidth()); + n = (double)byemembers; + + RTPTime Tmin = schedparams.GetMinimumTransmissionInterval(); + double tmin = Tmin.GetDouble(); + + if (schedparams.GetUseHalfAtStartup()) + tmin /= 2.0; + + double ntimesC = n*C; + double Td = (tmin>ntimesC)?tmin:ntimesC; + + double mul = rtprand.GetRandomDouble()+0.5; // gives random value between 0.5 and 1.5 + double T = (Td*mul)/1.21828; // see RFC 3550 p 30 + + return RTPTime(T); +} + diff --git a/src/rtcpscheduler.h b/src/rtcpscheduler.h new file mode 100644 index 0000000..e5736a3 --- /dev/null +++ b/src/rtcpscheduler.h @@ -0,0 +1,183 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpscheduler.h + */ + +#ifndef RTCPSCHEDULER_H + +#define RTCPSCHEDULER_H + +#include "rtpconfig.h" +#include "rtptimeutilities.h" +#include "rtprandom.h" + +class RTCPCompoundPacket; +class RTPPacket; +class RTPSources; + +/** Describes parameters used by the RTCPScheduler class. */ +class RTCPSchedulerParams +{ +public: + RTCPSchedulerParams(); + ~RTCPSchedulerParams(); + + /** Sets the RTCP bandwidth to be used to \c bw (in bytes per second). */ + int SetRTCPBandwidth(double bw); + + /** Returns the used RTCP bandwidth in bytes per second (default is 1000). */ + double GetRTCPBandwidth() const { return bandwidth; } + + /** Sets the fraction of the RTCP bandwidth reserved for senders to \c fraction. */ + int SetSenderBandwidthFraction(double fraction); + + /** Returns the fraction of the RTCP bandwidth reserved for senders (default is 25%). */ + double GetSenderBandwidthFraction() const { return senderfraction; } + + /** Sets the minimum (deterministic) interval between RTCP compound packets to \c t. */ + int SetMinimumTransmissionInterval(const RTPTime &t); + + /** Returns the minimum RTCP transmission interval (default is 5 seconds). */ + RTPTime GetMinimumTransmissionInterval() const { return mininterval; } + + /** If \c usehalf is \c true, only use half the minimum interval before sending the first RTCP compound packet. */ + void SetUseHalfAtStartup(bool usehalf) { usehalfatstartup = usehalf; } + + /** Returns \c true if only half the minimum interval should be used before sending the first RTCP compound packet + * (defualt is \c true). + */ + bool GetUseHalfAtStartup() const { return usehalfatstartup; } + + /** If \c v is \c true, the scheduler will schedule a BYE packet to be sent immediately if allowed. */ + void SetRequestImmediateBYE(bool v) { immediatebye = v; } + + /** Returns if the scheduler will schedule a BYE packet to be sent immediately if allowed + * (default is \c true). + */ + bool GetRequestImmediateBYE() const { return immediatebye; } +private: + double bandwidth; + double senderfraction; + RTPTime mininterval; + bool usehalfatstartup; + bool immediatebye; +}; + +/** This class determines when RTCP compound packets should be sent. */ +class RTCPScheduler +{ +public: + /** Creates an instance which will use the source table RTPSources to determine when RTCP compound + * packets should be scheduled. + * Creates an instance which will use the source table RTPSources to determine when RTCP compound + * packets should be scheduled. Note that for correct operation the \c sources instance should have information + * about the own SSRC (added by RTPSources::CreateOwnSSRC). + */ + RTCPScheduler(RTPSources &sources); + ~RTCPScheduler(); + + /** Resets the scheduler. */ + void Reset(); + + /** Sets the scheduler parameters to be used to \c params. */ + void SetParameters(const RTCPSchedulerParams ¶ms) { schedparams = params; } + + /** Returns the currently used scheduler parameters. */ + RTCPSchedulerParams GetParameters() const { return schedparams; } + + /** Sets the header overhead from underlying protocols (for example UDP and IP) to \c numbytes. */ + void SetHeaderOverhead(size_t numbytes) { headeroverhead = numbytes; } + + /** Returns the currently used header overhead. */ + size_t GetHeaderOverhead() const { return headeroverhead; } + + /** For each incoming RTCP compound packet, this function has to be called for the scheduler to work correctly. */ + void AnalyseIncoming(RTCPCompoundPacket &rtcpcomppack); + + /** For each outgoing RTCP compound packet, this function has to be called for the scheduler to work correctly. */ + void AnalyseOutgoing(RTCPCompoundPacket &rtcpcomppack); + + /** This function has to be called each time a member times out or sends a BYE packet. */ + void ActiveMemberDecrease(); + + /** Asks the scheduler to schedule an RTCP compound packet containing a BYE packetl; the compound packet + * has size \c packetsize. + */ + void ScheduleBYEPacket(size_t packetsize); + + /** Returns the delay after which an RTCP compound will possibly have to be sent. + * Returns the delay after which an RTCP compound will possibly have to be sent. The IsTime member function + * should be called afterwards to make sure that it actually is time to send an RTCP compound packet. + */ + RTPTime GetTransmissionDelay(); + + /** This function returns \c true if it's time to send an RTCP compound packet and \c false otherwise. + * This function returns \c true if it's time to send an RTCP compound packet and \c false otherwise. + * If the function returns \c true, it will also have calculated the next time at which a packet should + * be sent, so if it is called again right away, it will return \c false. + */ + bool IsTime(); + + /** Calculates the deterministic interval at this time. + * Calculates the deterministic interval at this time. This is used - in combination with a certain multiplier - + * to time out members, senders etc. + */ + RTPTime CalculateDeterministicInterval(bool sender = false); +private: + void CalculateNextRTCPTime(); + void PerformReverseReconsideration(); + RTPTime CalculateBYETransmissionInterval(); + RTPTime CalculateTransmissionInterval(bool sender); + + RTPSources &sources; + RTCPSchedulerParams schedparams; + size_t headeroverhead; + size_t avgrtcppacksize; + bool hassentrtcp; + bool firstcall; + RTPTime nextrtcptime; + RTPTime prevrtcptime; + int pmembers; + + // for BYE packet scheduling + bool byescheduled; + int byemembers,pbyemembers; + size_t avgbyepacketsize; + bool sendbyenow; + + RTPRandom rtprand; +}; + +#endif // RTCPSCHEDULER_H + diff --git a/src/rtcpsdesinfo.cpp b/src/rtcpsdesinfo.cpp new file mode 100644 index 0000000..c2611c4 --- /dev/null +++ b/src/rtcpsdesinfo.cpp @@ -0,0 +1,177 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpsdesinfo.h" + +#include "rtpdebug.h" + +void RTCPSDESInfo::Clear() +{ +#ifdef RTP_SUPPORT_SDESPRIV + std::list<SDESPrivateItem *>::const_iterator it; + + for (it = privitems.begin() ; it != privitems.end() ; ++it) + RTPDelete(*it,GetMemoryManager()); + privitems.clear(); +#endif // RTP_SUPPORT_SDESPRIV +} + +#ifdef RTP_SUPPORT_SDESPRIV +int RTCPSDESInfo::SetPrivateValue(const uint8_t *prefix,size_t prefixlen,const uint8_t *value,size_t valuelen) +{ + std::list<SDESPrivateItem *>::const_iterator it; + bool found; + + found = false; + it = privitems.begin(); + while (!found && it != privitems.end()) + { + uint8_t *p; + size_t l; + + p = (*it)->GetPrefix(&l); + if (l == prefixlen) + { + if (l <= 0) + found = true; + else if (memcmp(prefix,p,l) == 0) + found = true; + else + ++it; + } + else + ++it; + } + + SDESPrivateItem *item; + + if (found) // replace the value for this entry + item = *it; + else // no entry for this prefix found... add it + { + if (privitems.size() >= RTP_MAXPRIVITEMS) // too many items present, just ignore it + return ERR_RTP_SDES_MAXPRIVITEMS; + + int status; + + item = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_SDESPRIVATEITEM) SDESPrivateItem(GetMemoryManager()); + if (item == 0) + return ERR_RTP_OUTOFMEM; + if ((status = item->SetPrefix(prefix,prefixlen)) < 0) + { + RTPDelete(item,GetMemoryManager()); + return status; + } + privitems.push_front(item); + } + return item->SetInfo(value,valuelen); +} + +int RTCPSDESInfo::DeletePrivatePrefix(const uint8_t *prefix,size_t prefixlen) +{ + std::list<SDESPrivateItem *>::iterator it; + bool found; + + found = false; + it = privitems.begin(); + while (!found && it != privitems.end()) + { + uint8_t *p; + size_t l; + + p = (*it)->GetPrefix(&l); + if (l == prefixlen) + { + if (l <= 0) + found = true; + else if (memcmp(prefix,p,l) == 0) + found = true; + else + ++it; + } + else + ++it; + } + if (!found) + return ERR_RTP_SDES_PREFIXNOTFOUND; + + RTPDelete(*it,GetMemoryManager()); + privitems.erase(it); + return 0; +} + +void RTCPSDESInfo::GotoFirstPrivateValue() +{ + curitem = privitems.begin(); +} + +bool RTCPSDESInfo::GetNextPrivateValue(uint8_t **prefix,size_t *prefixlen,uint8_t **value,size_t *valuelen) +{ + if (curitem == privitems.end()) + return false; + *prefix = (*curitem)->GetPrefix(prefixlen); + *value = (*curitem)->GetInfo(valuelen); + ++curitem; + return true; +} + +bool RTCPSDESInfo::GetPrivateValue(const uint8_t *prefix,size_t prefixlen,uint8_t **value,size_t *valuelen) const +{ + std::list<SDESPrivateItem *>::const_iterator it; + bool found; + + found = false; + it = privitems.begin(); + while (!found && it != privitems.end()) + { + uint8_t *p; + size_t l; + + p = (*it)->GetPrefix(&l); + if (l == prefixlen) + { + if (l <= 0) + found = true; + else if (memcmp(prefix,p,l) == 0) + found = true; + else + ++it; + } + else + ++it; + } + if (found) + *value = (*it)->GetInfo(valuelen); + return found; +} +#endif // RTP_SUPPORT_SDESPRIV + diff --git a/src/rtcpsdesinfo.h b/src/rtcpsdesinfo.h new file mode 100644 index 0000000..f96915a --- /dev/null +++ b/src/rtcpsdesinfo.h @@ -0,0 +1,215 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpsdesinfo.h + */ + +#ifndef RTCPSDESINFO_H + +#define RTCPSDESINFO_H + +#include "rtpconfig.h" +#include "rtperrors.h" +#include "rtpdefines.h" +#include "rtptypes.h" +#include "rtpmemoryobject.h" +#include <string.h> +#include <list> + +/** The class RTCPSDESInfo is a container for RTCP SDES information. */ +class RTCPSDESInfo : public RTPMemoryObject +{ +public: + /** Constructs an instance, optionally installing a memory manager. */ + RTCPSDESInfo(RTPMemoryManager *mgr = 0) : RTPMemoryObject(mgr) { for (int i = 0 ; i < RTCP_SDES_NUMITEMS_NONPRIVATE ; i++) nonprivateitems[i].SetMemoryManager(mgr); } + virtual ~RTCPSDESInfo() { Clear(); } + + /** Clears all SDES information. */ + void Clear(); + + /** Sets the SDES CNAME item to \c s with length \c l. */ + int SetCNAME(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_CNAME-1,s,l); } + + /** Sets the SDES name item to \c s with length \c l. */ + int SetName(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_NAME-1,s,l); } + + /** Sets the SDES e-mail item to \c s with length \c l. */ + int SetEMail(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_EMAIL-1,s,l); } + + /** Sets the SDES phone item to \c s with length \c l. */ + int SetPhone(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_PHONE-1,s,l); } + + /** Sets the SDES location item to \c s with length \c l. */ + int SetLocation(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_LOCATION-1,s,l); } + + /** Sets the SDES tool item to \c s with length \c l. */ + int SetTool(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_TOOL-1,s,l); } + + /** Sets the SDES note item to \c s with length \c l. */ + int SetNote(const uint8_t *s,size_t l) { return SetNonPrivateItem(RTCP_SDES_ID_NOTE-1,s,l); } + +#ifdef RTP_SUPPORT_SDESPRIV + /** Sets the entry for the prefix string specified by \c prefix with length \c prefixlen to contain + * the value string specified by \c value with length \c valuelen (if the maximum allowed + * number of prefixes was reached, the error code \c ERR_RTP_SDES_MAXPRIVITEMS is returned. + */ + int SetPrivateValue(const uint8_t *prefix,size_t prefixlen,const uint8_t *value,size_t valuelen); + + /** Deletes the entry for the prefix specified by \c s with length \c len. */ + int DeletePrivatePrefix(const uint8_t *s,size_t len); +#endif // RTP_SUPPORT_SDESPRIV + + /** Returns the SDES CNAME item and stores its length in \c len. */ + uint8_t *GetCNAME(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_CNAME-1,len); } + + /** Returns the SDES name item and stores its length in \c len. */ + uint8_t *GetName(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_NAME-1,len); } + + /** Returns the SDES e-mail item and stores its length in \c len. */ + uint8_t *GetEMail(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_EMAIL-1,len); } + + /** Returns the SDES phone item and stores its length in \c len. */ + uint8_t *GetPhone(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_PHONE-1,len); } + + /** Returns the SDES location item and stores its length in \c len. */ + uint8_t *GetLocation(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_LOCATION-1,len); } + + /** Returns the SDES tool item and stores its length in \c len. */ + uint8_t *GetTool(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_TOOL-1,len); } + + /** Returns the SDES note item and stores its length in \c len. */ + uint8_t *GetNote(size_t *len) const { return GetNonPrivateItem(RTCP_SDES_ID_NOTE-1,len); } +#ifdef RTP_SUPPORT_SDESPRIV + /** Starts the iteration over the stored SDES private item prefixes and their associated values. */ + void GotoFirstPrivateValue(); + + /** Returns SDES priv item information. + * If available, returns \c true and stores the next SDES + * private item prefix in \c prefix and its length in + * \c prefixlen. The associated value and its length are + * then stored in \c value and \c valuelen. Otherwise, + * it returns \c false. + */ + bool GetNextPrivateValue(uint8_t **prefix,size_t *prefixlen,uint8_t **value,size_t *valuelen); + + /** Returns SDES priv item information. + * Looks for the entry which corresponds to the SDES private + * item prefix \c prefix with length \c prefixlen. If found, + * the function returns \c true and stores the associated + * value and its length in \c value and \c valuelen + * respectively. + */ + bool GetPrivateValue(const uint8_t *prefix,size_t prefixlen,uint8_t **value,size_t *valuelen) const; +#endif // RTP_SUPPORT_SDESPRIV +private: + int SetNonPrivateItem(int itemno,const uint8_t *s,size_t l) { if (l > RTCP_SDES_MAXITEMLENGTH) return ERR_RTP_SDES_LENGTHTOOBIG; return nonprivateitems[itemno].SetInfo(s,l); } + uint8_t *GetNonPrivateItem(int itemno,size_t *len) const { return nonprivateitems[itemno].GetInfo(len); } + + class SDESItem : public RTPMemoryObject + { + public: + SDESItem(RTPMemoryManager *mgr = 0) : RTPMemoryObject(mgr) + { + str = 0; + length = 0; + } + void SetMemoryManager(RTPMemoryManager *mgr) + { + RTPMemoryObject::SetMemoryManager(mgr); + } + ~SDESItem() + { + if (str) + RTPDeleteByteArray(str,GetMemoryManager()); + } + uint8_t *GetInfo(size_t *len) const { *len = length; return str; } + int SetInfo(const uint8_t *s,size_t len) { return SetString(&str,&length,s,len); } + protected: + int SetString(uint8_t **dest,size_t *destlen,const uint8_t *s,size_t len) + { + if (len <= 0) + { + if (*dest) + RTPDeleteByteArray((*dest),GetMemoryManager()); + *dest = 0; + *destlen = 0; + } + else + { + len = (len>RTCP_SDES_MAXITEMLENGTH)?RTCP_SDES_MAXITEMLENGTH:len; + uint8_t *str2 = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_SDESITEM) uint8_t[len]; + if (str2 == 0) + return ERR_RTP_OUTOFMEM; + memcpy(str2,s,len); + *destlen = len; + if (*dest) + RTPDeleteByteArray((*dest),GetMemoryManager()); + *dest = str2; + } + return 0; + } + private: + uint8_t *str; + size_t length; + }; + + SDESItem nonprivateitems[RTCP_SDES_NUMITEMS_NONPRIVATE]; + +#ifdef RTP_SUPPORT_SDESPRIV + class SDESPrivateItem : public SDESItem + { + public: + SDESPrivateItem(RTPMemoryManager *mgr) : SDESItem(mgr) + { + prefixlen = 0; + prefix = 0; + } + ~SDESPrivateItem() + { + if (prefix) + RTPDeleteByteArray(prefix,GetMemoryManager()); + } + uint8_t *GetPrefix(size_t *len) const { *len = prefixlen; return prefix; } + int SetPrefix(const uint8_t *s,size_t len) { return SetString(&prefix,&prefixlen,s,len); } + private: + uint8_t *prefix; + size_t prefixlen; + }; + + std::list<SDESPrivateItem *> privitems; + std::list<SDESPrivateItem *>::const_iterator curitem; +#endif // RTP_SUPPORT_SDESPRIV +}; + +#endif // RTCPSDESINFO_H + diff --git a/src/rtcpsdespacket.cpp b/src/rtcpsdespacket.cpp new file mode 100644 index 0000000..798f83c --- /dev/null +++ b/src/rtcpsdespacket.cpp @@ -0,0 +1,230 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpsdespacket.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTCPSDESPacket::RTCPSDESPacket(uint8_t *data,size_t datalength) + : RTCPPacket(SDES,data,datalength) +{ + knownformat = false; + currentchunk = 0; + itemoffset = 0; + curchunknum = 0; + + RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; + size_t len = datalength; + + if (hdr->padding) + { + uint8_t padcount = data[datalength-1]; + if ((padcount & 0x03) != 0) // not a multiple of four! (see rfc 3550 p 37) + return; + if (((size_t)padcount) >= len) + return; + len -= (size_t)padcount; + } + + if (hdr->count == 0) + { + if (len != sizeof(RTCPCommonHeader)) + return; + } + else + { + int ssrccount = (int)(hdr->count); + uint8_t *chunk; + int chunkoffset; + + if (len < sizeof(RTCPCommonHeader)) + return; + + len -= sizeof(RTCPCommonHeader); + chunk = data+sizeof(RTCPCommonHeader); + + while ((ssrccount > 0) && (len > 0)) + { + chunkoffset = 0; + + if (len < (sizeof(uint32_t)*2)) // chunk must contain at least a SSRC identifier + return; // and a (possibly empty) item + + len -= sizeof(uint32_t); + chunkoffset = sizeof(uint32_t); + + bool done = false; + while (!done) + { + if (len < 1) // at least a zero byte (end of item list) should be there + return; + + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(chunk+chunkoffset); + if (sdeshdr->sdesid == 0) // end of item list + { + len--; + chunkoffset++; + + size_t r = (chunkoffset&0x03); + if (r != 0) + { + size_t addoffset = 4-r; + + if (addoffset > len) + return; + len -= addoffset; + chunkoffset += addoffset; + } + done = true; + } + else + { + if (len < sizeof(RTCPSDESHeader)) + return; + + len -= sizeof(RTCPSDESHeader); + chunkoffset += sizeof(RTCPSDESHeader); + + size_t itemlen = (size_t)(sdeshdr->length); + if (itemlen > len) + return; + + len -= itemlen; + chunkoffset += itemlen; + } + } + + ssrccount--; + chunk += chunkoffset; + } + + // check for remaining bytes + if (len > 0) + return; + if (ssrccount > 0) + return; + } + + knownformat = true; +} + +#ifdef RTPDEBUG +void RTCPSDESPacket::Dump() +{ + RTCPPacket::Dump(); + if (!IsKnownFormat()) + { + std::cout << " Unknown format" << std::endl; + return; + } + if (!GotoFirstChunk()) + { + std::cout << " No chunks present" << std::endl; + return; + } + + do + { + std::cout << " SDES Chunk for SSRC: " << GetChunkSSRC() << std::endl; + if (!GotoFirstItem()) + std::cout << " No items found" << std::endl; + else + { + do + { + std::cout << " "; + switch (GetItemType()) + { + case None: + std::cout << "None "; + break; + case CNAME: + std::cout << "CNAME "; + break; + case NAME: + std::cout << "NAME "; + break; + case EMAIL: + std::cout << "EMAIL "; + break; + case PHONE: + std::cout << "PHONE "; + break; + case LOC: + std::cout << "LOC "; + break; + case TOOL: + std::cout << "TOOL "; + break; + case NOTE: + std::cout << "NOTE "; + break; + case PRIV: + std::cout << "PRIV "; + break; + case Unknown: + default: + std::cout << "Unknown "; + } + + std::cout << "Length: " << GetItemLength() << std::endl; + + if (GetItemType() != PRIV) + { + char str[1024]; + memcpy(str,GetItemData(),GetItemLength()); + str[GetItemLength()] = 0; + std::cout << " Value: " << str << std::endl; + } +#ifdef RTP_SUPPORT_SDESPRIV + else // PRIV item + { + char str[1024]; + memcpy(str,GetPRIVPrefixData(),GetPRIVPrefixLength()); + str[GetPRIVPrefixLength()] = 0; + std::cout << " Prefix: " << str << std::endl; + std::cout << " Length: " << GetPRIVPrefixLength() << std::endl; + memcpy(str,GetPRIVValueData(),GetPRIVValueLength()); + str[GetPRIVValueLength()] = 0; + std::cout << " Value: " << str << std::endl; + std::cout << " Length: " << GetPRIVValueLength() << std::endl; + } +#endif // RTP_SUPPORT_SDESPRIV + } while (GotoNextItem()); + } + } while (GotoNextChunk()); +} +#endif // RTPDEBUG + diff --git a/src/rtcpsdespacket.h b/src/rtcpsdespacket.h new file mode 100644 index 0000000..8b68a59 --- /dev/null +++ b/src/rtcpsdespacket.h @@ -0,0 +1,381 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpsdespacket.h + */ + +#ifndef RTCPSDESPACKET_H + +#define RTCPSDESPACKET_H + +#include "rtpconfig.h" +#include "rtcppacket.h" +#include "rtpstructs.h" +#include "rtpdefines.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +class RTCPCompoundPacket; + +/** Describes an RTCP source description packet. */ +class RTCPSDESPacket : public RTCPPacket +{ +public: + /** Identifies the type of an SDES item. */ + enum ItemType + { + None, /**< Used when the iteration over the items has finished. */ + CNAME, /**< Used for a CNAME (canonical name) item. */ + NAME, /**< Used for a NAME item. */ + EMAIL, /**< Used for an EMAIL item. */ + PHONE, /**< Used for a PHONE item. */ + LOC, /**< Used for a LOC (location) item. */ + TOOL, /**< Used for a TOOL item. */ + NOTE, /**< Used for a NOTE item. */ + PRIV, /**< Used for a PRIV item. */ + Unknown /**< Used when there is an item present, but the type is not recognized. */ + }; + + /** Creates an instance based on the data in \c data with length \c datalen. + * Creates an instance based on the data in \c data with length \c datalen. Since the \c data pointer + * is referenced inside the class (no copy of the data is made) one must make sure that the memory it + * points to is valid as long as the class instance exists. + */ + RTCPSDESPacket(uint8_t *data,size_t datalen); + ~RTCPSDESPacket() { } + + /** Returns the number of SDES chunks in the SDES packet. + * Returns the number of SDES chunks in the SDES packet. Each chunk has its own SSRC identifier. + */ + int GetChunkCount() const; + + /** Starts the iteration over the chunks. + * Starts the iteration. If no SDES chunks are present, the function returns \c false. Otherwise, + * it returns \c true and sets the current chunk to be the first chunk. + */ + bool GotoFirstChunk(); + + /** Sets the current chunk to the next available chunk. + * Sets the current chunk to the next available chunk. If no next chunk is present, this function returns + * \c false, otherwise it returns \c true. + */ + bool GotoNextChunk(); + + /** Returns the SSRC identifier of the current chunk. */ + uint32_t GetChunkSSRC() const; + + /** Starts the iteration over the SDES items in the current chunk. + * Starts the iteration over the SDES items in the current chunk. If no SDES items are + * present, the function returns \c false. Otherwise, the function sets the current item + * to be the first one and returns \c true. + */ + bool GotoFirstItem(); + + /** Advances the iteration to the next item in the current chunk. + * If there's another item in the chunk, the current item is set to be the next one and the function + * returns \c true. Otherwise, the function returns \c false. + */ + bool GotoNextItem(); + + /** Returns the SDES item type of the current item in the current chunk. */ + ItemType GetItemType() const; + + /** Returns the item length of the current item in the current chunk. */ + size_t GetItemLength() const; + + /** Returns the item data of the current item in the current chunk. */ + uint8_t *GetItemData(); + +#ifdef RTP_SUPPORT_SDESPRIV + /** If the current item is an SDES PRIV item, this function returns the length of the + * prefix string of the private item. + */ + size_t GetPRIVPrefixLength() const; + + /** If the current item is an SDES PRIV item, this function returns actual data of the + * prefix string. + */ + uint8_t *GetPRIVPrefixData(); + + /** If the current item is an SDES PRIV item, this function returns the length of the + * value string of the private item. + */ + size_t GetPRIVValueLength() const; + + /** If the current item is an SDES PRIV item, this function returns actual value data of the + * private item. + */ + uint8_t *GetPRIVValueData(); +#endif // RTP_SUPPORT_SDESPRIV + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + uint8_t *currentchunk; + int curchunknum; + size_t itemoffset; +}; + +inline int RTCPSDESPacket::GetChunkCount() const +{ + if (!knownformat) + return 0; + RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; + return ((int)hdr->count); +} + +inline bool RTCPSDESPacket::GotoFirstChunk() +{ + if (GetChunkCount() == 0) + { + currentchunk = 0; + return false; + } + currentchunk = data+sizeof(RTCPCommonHeader); + curchunknum = 1; + itemoffset = sizeof(uint32_t); + return true; +} + +inline bool RTCPSDESPacket::GotoNextChunk() +{ + if (!knownformat) + return false; + if (currentchunk == 0) + return false; + if (curchunknum == GetChunkCount()) + return false; + + size_t offset = sizeof(uint32_t); + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+sizeof(uint32_t)); + + while (sdeshdr->sdesid != 0) + { + offset += sizeof(RTCPSDESHeader); + offset += (size_t)(sdeshdr->length); + sdeshdr = (RTCPSDESHeader *)(currentchunk+offset); + } + offset++; // for the zero byte + if ((offset&0x03) != 0) + offset += (4-(offset&0x03)); + currentchunk += offset; + curchunknum++; + itemoffset = sizeof(uint32_t); + return true; +} + +inline uint32_t RTCPSDESPacket::GetChunkSSRC() const +{ + if (!knownformat) + return 0; + if (currentchunk == 0) + return 0; + uint32_t *ssrc = (uint32_t *)currentchunk; + return ntohl(*ssrc); +} + +inline bool RTCPSDESPacket::GotoFirstItem() +{ + if (!knownformat) + return false; + if (currentchunk == 0) + return false; + itemoffset = sizeof(uint32_t); + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid == 0) + return false; + return true; +} + +inline bool RTCPSDESPacket::GotoNextItem() +{ + if (!knownformat) + return false; + if (currentchunk == 0) + return false; + + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid == 0) + return false; + + size_t offset = itemoffset; + offset += sizeof(RTCPSDESHeader); + offset += (size_t)(sdeshdr->length); + sdeshdr = (RTCPSDESHeader *)(currentchunk+offset); + if (sdeshdr->sdesid == 0) + return false; + itemoffset = offset; + return true; +} + +inline RTCPSDESPacket::ItemType RTCPSDESPacket::GetItemType() const +{ + if (!knownformat) + return None; + if (currentchunk == 0) + return None; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + switch (sdeshdr->sdesid) + { + case 0: + return None; + case RTCP_SDES_ID_CNAME: + return CNAME; + case RTCP_SDES_ID_NAME: + return NAME; + case RTCP_SDES_ID_EMAIL: + return EMAIL; + case RTCP_SDES_ID_PHONE: + return PHONE; + case RTCP_SDES_ID_LOCATION: + return LOC; + case RTCP_SDES_ID_TOOL: + return TOOL; + case RTCP_SDES_ID_NOTE: + return NOTE; + case RTCP_SDES_ID_PRIVATE: + return PRIV; + default: + return Unknown; + } + return Unknown; +} + +inline size_t RTCPSDESPacket::GetItemLength() const +{ + if (!knownformat) + return None; + if (currentchunk == 0) + return None; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid == 0) + return 0; + return (size_t)(sdeshdr->length); +} + +inline uint8_t *RTCPSDESPacket::GetItemData() +{ + if (!knownformat) + return 0; + if (currentchunk == 0) + return 0; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid == 0) + return 0; + return (currentchunk+itemoffset+sizeof(RTCPSDESHeader)); +} + +#ifdef RTP_SUPPORT_SDESPRIV +inline size_t RTCPSDESPacket::GetPRIVPrefixLength() const +{ + if (!knownformat) + return 0; + if (currentchunk == 0) + return 0; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid != RTCP_SDES_ID_PRIVATE) + return 0; + if (sdeshdr->length == 0) + return 0; + uint8_t *preflen = currentchunk+itemoffset+sizeof(RTCPSDESHeader); + size_t prefixlength = (size_t)(*preflen); + if (prefixlength > (size_t)((sdeshdr->length)-1)) + return 0; + return prefixlength; +} + +inline uint8_t *RTCPSDESPacket::GetPRIVPrefixData() +{ + if (!knownformat) + return 0; + if (currentchunk == 0) + return 0; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid != RTCP_SDES_ID_PRIVATE) + return 0; + if (sdeshdr->length == 0) + return 0; + uint8_t *preflen = currentchunk+itemoffset+sizeof(RTCPSDESHeader); + size_t prefixlength = (size_t)(*preflen); + if (prefixlength > (size_t)((sdeshdr->length)-1)) + return 0; + if (prefixlength == 0) + return 0; + return (currentchunk+itemoffset+sizeof(RTCPSDESHeader)+1); +} + +inline size_t RTCPSDESPacket::GetPRIVValueLength() const +{ + if (!knownformat) + return 0; + if (currentchunk == 0) + return 0; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid != RTCP_SDES_ID_PRIVATE) + return 0; + if (sdeshdr->length == 0) + return 0; + uint8_t *preflen = currentchunk+itemoffset+sizeof(RTCPSDESHeader); + size_t prefixlength = (size_t)(*preflen); + if (prefixlength > (size_t)((sdeshdr->length)-1)) + return 0; + return ((size_t)(sdeshdr->length))-prefixlength-1; +} + +inline uint8_t *RTCPSDESPacket::GetPRIVValueData() +{ + if (!knownformat) + return 0; + if (currentchunk == 0) + return 0; + RTCPSDESHeader *sdeshdr = (RTCPSDESHeader *)(currentchunk+itemoffset); + if (sdeshdr->sdesid != RTCP_SDES_ID_PRIVATE) + return 0; + if (sdeshdr->length == 0) + return 0; + uint8_t *preflen = currentchunk+itemoffset+sizeof(RTCPSDESHeader); + size_t prefixlength = (size_t)(*preflen); + if (prefixlength > (size_t)((sdeshdr->length)-1)) + return 0; + size_t valuelen = ((size_t)(sdeshdr->length))-prefixlength-1; + if (valuelen == 0) + return 0; + return (currentchunk+itemoffset+sizeof(RTCPSDESHeader)+1+prefixlength); +} + +#endif // RTP_SUPPORT_SDESPRIV + +#endif // RTCPSDESPACKET_H + diff --git a/src/rtcpsrpacket.cpp b/src/rtcpsrpacket.cpp new file mode 100644 index 0000000..2ccc395 --- /dev/null +++ b/src/rtcpsrpacket.cpp @@ -0,0 +1,101 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtcpsrpacket.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTCPSRPacket::RTCPSRPacket(uint8_t *data,size_t datalength) + : RTCPPacket(SR,data,datalength) +{ + knownformat = false; + + RTCPCommonHeader *hdr; + size_t len = datalength; + size_t expectedlength; + + hdr = (RTCPCommonHeader *)data; + if (hdr->padding) + { + uint8_t padcount = data[datalength-1]; + if ((padcount & 0x03) != 0) // not a multiple of four! (see rfc 3550 p 37) + return; + if (((size_t)padcount) >= len) + return; + len -= (size_t)padcount; + } + + expectedlength = sizeof(RTCPCommonHeader)+sizeof(uint32_t)+sizeof(RTCPSenderReport); + expectedlength += sizeof(RTCPReceiverReport)*((int)hdr->count); + + if (expectedlength != len) + return; + + knownformat = true; +} + +#ifdef RTPDEBUG +void RTCPSRPacket::Dump() +{ + RTCPPacket::Dump(); + if (!IsKnownFormat()) + std::cout << " Unknown format" << std::endl; + else + { + int num = GetReceptionReportCount(); + int i; + RTPNTPTime t = GetNTPTimestamp(); + + std::cout << " SSRC of sender: " << GetSenderSSRC() << std::endl; + std::cout << " Sender info:" << std::endl; + std::cout << " NTP timestamp: " << t.GetMSW() << ":" << t.GetLSW() << std::endl; + std::cout << " RTP timestamp: " << GetRTPTimestamp() << std::endl; + std::cout << " Packet count: " << GetSenderPacketCount() << std::endl; + std::cout << " Octet count: " << GetSenderOctetCount() << std::endl; + for (i = 0 ; i < num ; i++) + { + std::cout << " Report block " << i << std::endl; + std::cout << " SSRC: " << GetSSRC(i) << std::endl; + std::cout << " Fraction lost: " << (uint32_t)GetFractionLost(i) << std::endl; + std::cout << " Packets lost: " << GetLostPacketCount(i) << std::endl; + std::cout << " Seq. nr.: " << GetExtendedHighestSequenceNumber(i) << std::endl; + std::cout << " Jitter: " << GetJitter(i) << std::endl; + std::cout << " LSR: " << GetLSR(i) << std::endl; + std::cout << " DLSR: " << GetDLSR(i) << std::endl; + } + } +} +#endif // RTPDEBUG + diff --git a/src/rtcpsrpacket.h b/src/rtcpsrpacket.h new file mode 100644 index 0000000..03a8442 --- /dev/null +++ b/src/rtcpsrpacket.h @@ -0,0 +1,247 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpsrpacket.h + */ + +#ifndef RTCPSRPACKET_H + +#define RTCPSRPACKET_H + +#include "rtpconfig.h" +#include "rtcppacket.h" +#include "rtptimeutilities.h" +#include "rtpstructs.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +class RTCPCompoundPacket; + +/** Describes an RTCP sender report packet. */ +class RTCPSRPacket : public RTCPPacket +{ +public: + /** Creates an instance based on the data in \c data with length \c datalen. + * Creates an instance based on the data in \c data with length \c datalen. Since the \c data pointer + * is referenced inside the class (no copy of the data is made) one must make sure that the memory it + * points to is valid as long as the class instance exists. + */ + RTCPSRPacket(uint8_t *data,size_t datalength); + ~RTCPSRPacket() { } + + /** Returns the SSRC of the participant who sent this packet. */ + uint32_t GetSenderSSRC() const; + + /** Returns the NTP timestamp contained in the sender report. */ + RTPNTPTime GetNTPTimestamp() const; + + /** Returns the RTP timestamp contained in the sender report. */ + uint32_t GetRTPTimestamp() const; + + /** Returns the sender's packet count contained in the sender report. */ + uint32_t GetSenderPacketCount() const; + + /** Returns the sender's octet count contained in the sender report. */ + uint32_t GetSenderOctetCount() const; + + /** Returns the number of reception report blocks present in this packet. */ + int GetReceptionReportCount() const; + + /** Returns the SSRC of the reception report block described by \c index which may have a value + * from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetSSRC(int index) const; + + /** Returns the `fraction lost' field of the reception report described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint8_t GetFractionLost(int index) const; + + /** Returns the number of lost packets in the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + int32_t GetLostPacketCount(int index) const; + + /** Returns the extended highest sequence number of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetExtendedHighestSequenceNumber(int index) const; + + /** Returns the jitter field of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetJitter(int index) const; + + /** Returns the LSR field of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetLSR(int index) const; + + /** Returns the DLSR field of the reception report block described by \c index which may have + * a value from 0 to GetReceptionReportCount()-1 (note that no check is performed to see if \c index is + * valid). + */ + uint32_t GetDLSR(int index) const; + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + RTCPReceiverReport *GotoReport(int index) const; +}; + +inline uint32_t RTCPSRPacket::GetSenderSSRC() const +{ + if (!knownformat) + return 0; + + uint32_t *ssrcptr = (uint32_t *)(data+sizeof(RTCPCommonHeader)); + return ntohl(*ssrcptr); +} + +inline RTPNTPTime RTCPSRPacket::GetNTPTimestamp() const +{ + if (!knownformat) + return RTPNTPTime(0,0); + + RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); + return RTPNTPTime(ntohl(sr->ntptime_msw),ntohl(sr->ntptime_lsw)); +} + +inline uint32_t RTCPSRPacket::GetRTPTimestamp() const +{ + if (!knownformat) + return 0; + RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); + return ntohl(sr->rtptimestamp); +} + +inline uint32_t RTCPSRPacket::GetSenderPacketCount() const +{ + if (!knownformat) + return 0; + RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); + return ntohl(sr->packetcount); +} + +inline uint32_t RTCPSRPacket::GetSenderOctetCount() const +{ + if (!knownformat) + return 0; + RTCPSenderReport *sr = (RTCPSenderReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)); + return ntohl(sr->octetcount); +} + +inline int RTCPSRPacket::GetReceptionReportCount() const +{ + if (!knownformat) + return 0; + RTCPCommonHeader *hdr = (RTCPCommonHeader *)data; + return ((int)hdr->count); +} + +inline RTCPReceiverReport *RTCPSRPacket::GotoReport(int index) const +{ + RTCPReceiverReport *r = (RTCPReceiverReport *)(data+sizeof(RTCPCommonHeader)+sizeof(uint32_t)+sizeof(RTCPSenderReport)+index*sizeof(RTCPReceiverReport)); + return r; +} + +inline uint32_t RTCPSRPacket::GetSSRC(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->ssrc); +} + +inline uint8_t RTCPSRPacket::GetFractionLost(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return r->fractionlost; +} + +inline int32_t RTCPSRPacket::GetLostPacketCount(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + uint32_t count = ((uint32_t)r->packetslost[2])|(((uint32_t)r->packetslost[1])<<8)|(((uint32_t)r->packetslost[0])<<16); + if ((count&0x00800000) != 0) // test for negative number + count |= 0xFF000000; + int32_t *count2 = (int32_t *)(&count); + return (*count2); +} + +inline uint32_t RTCPSRPacket::GetExtendedHighestSequenceNumber(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->exthighseqnr); +} + +inline uint32_t RTCPSRPacket::GetJitter(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->jitter); +} + +inline uint32_t RTCPSRPacket::GetLSR(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->lsr); +} + +inline uint32_t RTCPSRPacket::GetDLSR(int index) const +{ + if (!knownformat) + return 0; + RTCPReceiverReport *r = GotoReport(index); + return ntohl(r->dlsr); +} + +#endif // RTCPSRPACKET_H + diff --git a/src/rtcpunknownpacket.h b/src/rtcpunknownpacket.h new file mode 100644 index 0000000..4745be7 --- /dev/null +++ b/src/rtcpunknownpacket.h @@ -0,0 +1,68 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtcpunknownpacket.h + */ + +#ifndef RTCPUNKNOWNPACKET_H + +#define RTCPUNKNOWNPACKET_H + +#include "rtpconfig.h" +#include "rtcppacket.h" + +class RTCPCompoundPacket; + +/** Describes an RTCP packet of unknown type. + * Describes an RTCP packet of unknown type. This class doesn't have any extra member functions besides + * the ones it inherited. Note that since an unknown packet type doesn't have any format to check + * against, the IsKnownFormat function will trivially return \c true. + */ +class RTCPUnknownPacket : public RTCPPacket +{ +public: + /** Creates an instance based on the data in \c data with length \c datalen. + * Creates an instance based on the data in \c data with length \c datalen. Since the \c data pointer + * is referenced inside the class (no copy of the data is made) one must make sure that the memory it + * points to is valid as long as the class instance exists. + */ + RTCPUnknownPacket(uint8_t *data,size_t datalen) : RTCPPacket(Unknown,data,datalen) + { + // Since we don't expect a format, we'll trivially put knownformat = true + knownformat = true; + } + ~RTCPUnknownPacket() { } +}; + +#endif // RTCPUNKNOWNPACKET_H + diff --git a/src/rtpaddress.h b/src/rtpaddress.h new file mode 100644 index 0000000..92e29b1 --- /dev/null +++ b/src/rtpaddress.h @@ -0,0 +1,93 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpaddress.h + */ + +#ifndef RTPADDRESS_H + +#define RTPADDRESS_H + +#include "rtpconfig.h" +#include <string> + +class RTPMemoryManager; + +/** This class is an abstract class which is used to specify destinations, multicast groups etc. */ +class RTPAddress +{ +public: + /** Identifies the actual implementation being used. */ + enum AddressType + { + IPv4Address, /**< Used by the UDP over IPv4 transmitter. */ + IPv6Address, /**< Used by the UDP over IPv6 transmitter. */ + UserDefinedAddress /**< Can be useful for a user-defined transmitter. */ + }; + + /** Returns the type of address the actual implementation represents. */ + AddressType GetAddressType() const { return addresstype; } + + /** Creates a copy of the RTPAddress instance. + * Creates a copy of the RTPAddress instance. If \c mgr is not NULL, the + * corresponding memory manager will be used to allocate the memory for the address + * copy. + */ + virtual RTPAddress *CreateCopy(RTPMemoryManager *mgr) const = 0; + + /** Checks if the address \c addr is the same address as the one this instance represents. + * Checks if the address \c addr is the same address as the one this instance represents. + * Implementations must be able to handle a NULL argument. + */ + virtual bool IsSameAddress(const RTPAddress *addr) const = 0; + + /** Checks if the address \c addr represents the same host as this instance. + * Checks if the address \c addr represents the same host as this instance. Implementations + * must be able to handle a NULL argument. + */ + virtual bool IsFromSameHost(const RTPAddress *addr) const = 0; + +#ifdef RTPDEBUG + virtual std::string GetAddressString() const = 0; +#endif // RTPDEBUG + + virtual ~RTPAddress() { } +protected: + // only allow subclasses to be created + RTPAddress(const AddressType t) : addresstype(t) { } +private: + const AddressType addresstype; +}; + +#endif // RTPADDRESS_H + diff --git a/src/rtpcollisionlist.cpp b/src/rtpcollisionlist.cpp new file mode 100644 index 0000000..4338a33 --- /dev/null +++ b/src/rtpcollisionlist.cpp @@ -0,0 +1,125 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpcollisionlist.h" +#include "rtperrors.h" +#include "rtpmemorymanager.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTPCollisionList::RTPCollisionList(RTPMemoryManager *mgr) : RTPMemoryObject(mgr) +{ +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +void RTPCollisionList::Clear() +{ + std::list<AddressAndTime>::iterator it; + + for (it = addresslist.begin() ; it != addresslist.end() ; it++) + RTPDelete((*it).addr,GetMemoryManager()); + addresslist.clear(); +} + +int RTPCollisionList::UpdateAddress(const RTPAddress *addr,const RTPTime &receivetime,bool *created) +{ + if (addr == 0) + return ERR_RTP_COLLISIONLIST_BADADDRESS; + + std::list<AddressAndTime>::iterator it; + + for (it = addresslist.begin() ; it != addresslist.end() ; it++) + { + if (((*it).addr)->IsSameAddress(addr)) + { + (*it).recvtime = receivetime; + *created = false; + return 0; + } + } + + RTPAddress *newaddr = addr->CreateCopy(GetMemoryManager()); + if (newaddr == 0) + return ERR_RTP_OUTOFMEM; + + addresslist.push_back(AddressAndTime(newaddr,receivetime)); + *created = true; + return 0; +} + +bool RTPCollisionList::HasAddress(const RTPAddress *addr) const +{ + std::list<AddressAndTime>::const_iterator it; + + for (it = addresslist.begin() ; it != addresslist.end() ; it++) + { + if (((*it).addr)->IsSameAddress(addr)) + return true; + } + + return false; +} + +void RTPCollisionList::Timeout(const RTPTime ¤ttime,const RTPTime &timeoutdelay) +{ + std::list<AddressAndTime>::iterator it; + RTPTime checktime = currenttime; + checktime -= timeoutdelay; + + it = addresslist.begin(); + while(it != addresslist.end()) + { + if ((*it).recvtime < checktime) // timeout + { + RTPDelete((*it).addr,GetMemoryManager()); + it = addresslist.erase(it); + } + else + it++; + } +} + +#ifdef RTPDEBUG +void RTPCollisionList::Dump() +{ + std::list<AddressAndTime>::const_iterator it; + + for (it = addresslist.begin() ; it != addresslist.end() ; it++) + std::cout << "Address: " << ((*it).addr)->GetAddressString() << "\tTime: " << (*it).recvtime.GetSeconds() << std::endl; +} +#endif // RTPDEBUG + diff --git a/src/rtpcollisionlist.h b/src/rtpcollisionlist.h new file mode 100644 index 0000000..c710c42 --- /dev/null +++ b/src/rtpcollisionlist.h @@ -0,0 +1,90 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpcollisionlist.h + */ + +#ifndef RTPCOLLISIONLIST_H + +#define RTPCOLLISIONLIST_H + +#include "rtpconfig.h" +#include "rtpaddress.h" +#include "rtptimeutilities.h" +#include "rtpmemoryobject.h" +#include <list> + +class RTPAddress; + +/** This class represents a list of addresses from which SSRC collisions were detected. */ +class RTPCollisionList : public RTPMemoryObject +{ +public: + /** Constructs an instance, optionally installing a memory manager. */ + RTPCollisionList(RTPMemoryManager *mgr = 0); + ~RTPCollisionList() { Clear(); } + + /** Clears the list of addresses. */ + void Clear(); + + /** Updates the entry for address \c addr to indicate that a collision was detected at time \c receivetime. + * Updates the entry for address \c addr to indicate that a collision was detected at time \c receivetime. + * If the entry did not exist yet, the flag \c created is set to \c true, otherwise it is set to \c false. + */ + int UpdateAddress(const RTPAddress *addr,const RTPTime &receivetime,bool *created); + + /** Returns \c true} if the address \c addr appears in the list. */ + bool HasAddress(const RTPAddress *addr) const; + + /** Assuming that the current time is given by \c currenttime, this function times out entries which + * haven't been updated in the previous time interval specified by \c timeoutdelay. + */ + void Timeout(const RTPTime ¤ttime,const RTPTime &timeoutdelay); +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + class AddressAndTime + { + public: + AddressAndTime(RTPAddress *a,const RTPTime &t) : addr(a),recvtime(t) { } + + RTPAddress *addr; + RTPTime recvtime; + }; + + std::list<AddressAndTime> addresslist; +}; + +#endif // RTPCOLLISIONLIST_H + diff --git a/src/rtpconfig.h b/src/rtpconfig.h new file mode 100644 index 0000000..23539b8 --- /dev/null +++ b/src/rtpconfig.h @@ -0,0 +1,45 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPCONFIG_H + +#define RTPCONFIG_H + +#if (defined(WIN32) || defined(_WIN32_WCE)) +#include "rtpconfig_win.h" +#else +#include "rtpconfig_unix.h" +#endif // WIN32 + +//#define RTPDEBUG + +#endif // RTPCONFIG_H diff --git a/src/rtpconfig_unix.h.in b/src/rtpconfig_unix.h.in new file mode 100644 index 0000000..b4f17bd --- /dev/null +++ b/src/rtpconfig_unix.h.in @@ -0,0 +1,72 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPCONFIG_UNIX_H + +#define RTPCONFIG_UNIX_H + +@RTP_FILIO@ + +@RTP_SOCKIO@ + +@RTP_ENDIAN@ + +@RTP_SOCKLENTYPE_UINT@ + +@RTP_HAVE_SOCKADDR_LEN@ + +@RTP_SUPPORT_IPV4MULTICAST@ + +@RTP_SUPPORT_THREAD@ + +@RTP_SUPPORT_SDESPRIV@ + +@RTP_SUPPORT_PROBATION@ + +@RTP_SUPPORT_GNUDRAND@ + +@RTP_SUPPORT_RANDR@ + +@RTP_SUPPORT_GETLOGINR@ + +@RTP_SUPPORT_IPV6@ + +@RTP_SUPPORT_IPV6MULTICAST@ + +@RTP_SUPPORT_IFADDRS@ + +@RTP_SUPPORT_SENDAPP@ + +@RTP_SUPPORT_MEMORYMANAGEMENT@ + +#endif // RTPCONFIG_UNIX_H + diff --git a/src/rtpconfig_win.h b/src/rtpconfig_win.h new file mode 100644 index 0000000..f5bfc0d --- /dev/null +++ b/src/rtpconfig_win.h @@ -0,0 +1,54 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPCONFIG_WIN_H + +#define RTPCONFIG_WIN_H + +#define RTP_SUPPORT_IPV4MULTICAST + +#define RTP_SUPPORT_THREAD + +#define RTP_SUPPORT_PROBATION + +#define RTP_SUPPORT_SDESPRIV + +//#define RTP_SUPPORT_IPV6 + +//#define RTP_SUPPORT_IPV6MULTICAST + +#define RTP_SUPPORT_SENDAPP + +#define RTP_SUPPORT_MEMORYMANAGEMENT + +#endif // RTPCONFIG_WIN_H + diff --git a/src/rtpdebug.cpp b/src/rtpdebug.cpp new file mode 100644 index 0000000..e8d0f6f --- /dev/null +++ b/src/rtpdebug.cpp @@ -0,0 +1,178 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpconfig.h" + +#ifdef RTPDEBUG + +#include "rtptypes.h" +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +struct MemoryInfo +{ + void *ptr; + size_t size; + int lineno; + char *filename; + + MemoryInfo *next; +}; + +class MemoryTracker +{ +public: + MemoryTracker() { firstblock = NULL; } + ~MemoryTracker() + { + MemoryInfo *tmp; + int count = 0; + + printf("Checking for memory leaks...\n");fflush(stdout); + while(firstblock) + { + count++; + printf("Unfreed block %p of %d bytes (file '%s', line %d)\n",firstblock->ptr,(int)firstblock->size,firstblock->filename,firstblock->lineno);; + + tmp = firstblock->next; + + free(firstblock->ptr); + if (firstblock->filename) + free(firstblock->filename); + free(firstblock); + firstblock = tmp; + } + if (count == 0) + printf("No memory leaks found\n"); + else + printf("%d leaks found\n",count); + } + + MemoryInfo *firstblock; +}; + +static MemoryTracker memtrack; + +void *donew(size_t s,char filename[],int line) +{ + void *p; + MemoryInfo *meminf; + + p = malloc(s); + meminf = (MemoryInfo *)malloc(sizeof(MemoryInfo)); + + meminf->ptr = p; + meminf->size = s; + meminf->lineno = line; + meminf->filename = (char *)malloc(strlen(filename)+1); + strcpy(meminf->filename,filename); + meminf->next = memtrack.firstblock; + + memtrack.firstblock = meminf; + + return p; +} + +void dodelete(void *p) +{ + MemoryInfo *tmp,*tmpprev; + bool found; + + tmpprev = NULL; + tmp = memtrack.firstblock; + found = false; + while (tmp != NULL && !found) + { + if (tmp->ptr == p) + found = true; + else + { + tmpprev = tmp; + tmp = tmp->next; + } + } + if (!found) + { + printf("Couldn't free block %p!\n",p); + fflush(stdout); + } + else + { + MemoryInfo *n; + + fflush(stdout); + n = tmp->next; + free(tmp->ptr); + if (tmp->filename) + free(tmp->filename); + free(tmp); + + if (tmpprev) + tmpprev->next = n; + else + memtrack.firstblock = n; + } +} + +void *operator new(size_t s) +{ + return donew(s,"UNKNOWN FILE",0); +} + +void *operator new[](size_t s) +{ + return donew(s,"UNKNOWN FILE",0); +} + +void *operator new(size_t s,char filename[],int line) +{ + return donew(s,filename,line); +} + +void *operator new[](size_t s,char filename[],int line) +{ + return donew(s,filename,line); +} + +void operator delete(void *p) +{ + dodelete(p); +} + +void operator delete[](void *p) +{ + dodelete(p); +} + +#endif // RTPDEBUG + diff --git a/src/rtpdebug.h b/src/rtpdebug.h new file mode 100644 index 0000000..d15bd85 --- /dev/null +++ b/src/rtpdebug.h @@ -0,0 +1,52 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPDEBUG_H + +#define RTPDEBUG_H + +#include "rtpconfig.h" + +#ifdef RTPDEBUG + #include "rtptypes.h" + + void *operator new(size_t s,char filename[],int line); +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + void *operator new[](size_t s,char filename[],int line); + #define new new (__FILE__,__LINE__) +#else + #define new new (__FILE__,__LINE__) +#endif // WIN32 +#endif // RTPDEBUG + +#endif // RTPDEBUG_H + diff --git a/src/rtpdefines.h b/src/rtpdefines.h new file mode 100644 index 0000000..85eb9d1 --- /dev/null +++ b/src/rtpdefines.h @@ -0,0 +1,86 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPDEFINES_H + +#define RTPDEFINES_H + +#define RTP_VERSION 2 +#define RTP_MAXCSRCS 15 +#define RTP_MINPACKETSIZE 600 +#define RTP_DEFAULTPACKETSIZE 1400 +#define RTP_PROBATIONCOUNT 2 +#define RTP_MAXPRIVITEMS 256 +#define RTP_SENDERTIMEOUTMULTIPLIER 2 +#define RTP_BYETIMEOUTMULTIPLIER 1 +#define RTP_MEMBERTIMEOUTMULTIPLIER 5 +#define RTP_COLLISIONTIMEOUTMULTIPLIER 10 +#define RTP_NOTETTIMEOUTMULTIPLIER 25 +#define RTP_DEFAULTSESSIONBANDWIDTH 10000.0 + +#define RTP_RTCPTYPE_SR 200 +#define RTP_RTCPTYPE_RR 201 +#define RTP_RTCPTYPE_SDES 202 +#define RTP_RTCPTYPE_BYE 203 +#define RTP_RTCPTYPE_APP 204 + +#define RTCP_SDES_ID_CNAME 1 +#define RTCP_SDES_ID_NAME 2 +#define RTCP_SDES_ID_EMAIL 3 +#define RTCP_SDES_ID_PHONE 4 +#define RTCP_SDES_ID_LOCATION 5 +#define RTCP_SDES_ID_TOOL 6 +#define RTCP_SDES_ID_NOTE 7 +#define RTCP_SDES_ID_PRIVATE 8 +#define RTCP_SDES_NUMITEMS_NONPRIVATE 7 +#define RTCP_SDES_MAXITEMLENGTH 255 + +#define RTCP_BYE_MAXREASONLENGTH 255 +#define RTCP_DEFAULTMININTERVAL 5.0 +#define RTCP_DEFAULTBANDWIDTHFRACTION 0.05 +#define RTCP_DEFAULTSENDERFRACTION 0.25 +#define RTCP_DEFAULTHALFATSTARTUP true +#define RTCP_DEFAULTIMMEDIATEBYE true +#define RTCP_DEFAULTSRBYE true + +#if (defined(WIN32) || defined(_WIN32_WCE)) + #if (!defined(_WIN32_WCE)) && (defined(_MSC_VER) && _MSC_VER >= 1400 ) + #define RTP_SNPRINTF _snprintf_s + #else + #define RTP_SNPRINTF _snprintf + #endif +#else + #define RTP_SNPRINTF snprintf +#endif // WIN32 || _WIN32_WCE + +#endif // RTPDEFINES_H + diff --git a/src/rtperrors.cpp b/src/rtperrors.cpp new file mode 100644 index 0000000..a6a16c9 --- /dev/null +++ b/src/rtperrors.cpp @@ -0,0 +1,229 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtperrors.h" +#include "rtpdefines.h" + +#include "rtpdebug.h" + +struct RTPErrorInfo +{ + int code; + char *description; +}; + +static RTPErrorInfo ErrorDescriptions[]= +{ + { ERR_RTP_OUTOFMEM,"Out of memory" }, + { ERR_RTP_NOTHREADSUPPORT, "No JThread support was compiled in"}, + { ERR_RTP_COLLISIONLIST_BADADDRESS, "Passed invalid address (null) to collision list"}, + { ERR_RTP_HASHTABLE_ELEMENTALREADYEXISTS, "Element already exists in hash table"}, + { ERR_RTP_HASHTABLE_ELEMENTNOTFOUND, "Element not found in hash table"}, + { ERR_RTP_HASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX, "Function returned an illegal hash index"}, + { ERR_RTP_HASHTABLE_NOCURRENTELEMENT, "No current element selected in hash table"}, + { ERR_RTP_KEYHASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX, "Function returned an illegal hash index"}, + { ERR_RTP_KEYHASHTABLE_KEYALREADYEXISTS, "Key value already exists in key hash table"}, + { ERR_RTP_KEYHASHTABLE_KEYNOTFOUND, "Key value not found in key hash table"}, + { ERR_RTP_KEYHASHTABLE_NOCURRENTELEMENT, "No current element selected in key hash table"}, + { ERR_RTP_PACKBUILD_ALREADYINIT, "RTP packet builder is already initialized"}, + { ERR_RTP_PACKBUILD_CSRCALREADYINLIST, "The specified CSRC is already in the RTP packet builder's CSRC list"}, + { ERR_RTP_PACKBUILD_CSRCLISTFULL, "The RTP packet builder's CSRC list already contains 15 entries"}, + { ERR_RTP_PACKBUILD_CSRCNOTINLIST, "The specified CSRC was not found in the RTP packet builder's CSRC list"}, + { ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET, "The RTP packet builder's default mark flag is not set"}, + { ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET, "The RTP packet builder's default payload type is not set"}, + { ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET, "The RTP packet builder's default timestamp increment is not set"}, + { ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE, "The specified maximum packet size for the RTP packet builder is invalid"}, + { ERR_RTP_PACKBUILD_NOTINIT, "The RTP packet builder is not initialized"}, + { ERR_RTP_PACKET_BADPAYLOADTYPE, "Invalid payload type"}, + { ERR_RTP_PACKET_DATAEXCEEDSMAXSIZE, "Tried to create an RTP packet which whould exceed the specified maximum packet size"}, + { ERR_RTP_PACKET_EXTERNALBUFFERNULL, "Illegal value (null) passed as external buffer for the RTP packet"}, + { ERR_RTP_PACKET_ILLEGALBUFFERSIZE, "Illegal buffer size specified for the RTP packet"}, + { ERR_RTP_PACKET_INVALIDPACKET, "Invalid RTP packet format"}, + { ERR_RTP_PACKET_TOOMANYCSRCS, "More than 15 CSRCs specified for the RTP packet"}, + { ERR_RTP_POLLTHREAD_ALREADYRUNNING, "Poll thread is already running"}, + { ERR_RTP_POLLTHREAD_CANTINITMUTEX, "Can't initialize a mutex for the poll thread"}, + { ERR_RTP_POLLTHREAD_CANTSTARTTHREAD, "Can't start the poll thread"}, + { ERR_RTP_RTCPCOMPOUND_INVALIDPACKET, "Invalid RTCP compound packet format"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILDING, "Already building this RTCP compound packet"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILT, "This RTCP compound packet is already built"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYGOTREPORT, "There's already a SR or RR in this RTCP compound packet"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_APPDATALENTOOBIG, "The specified APP data length for the RTCP compound packet is too big"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_BUFFERSIZETOOSMALL, "The specified buffer size for the RTCP comound packet is too small"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_ILLEGALAPPDATALENGTH, "The APP data length must be a multiple of four"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_ILLEGALSUBTYPE, "The APP packet subtype must be smaller than 32"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_INVALIDITEMTYPE, "Invalid SDES item type specified for the RTCP compound packet"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_MAXPACKETSIZETOOSMALL, "The specified maximum packet size for the RTCP compound packet is too small"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_NOCURRENTSOURCE, "Tried to add an SDES item to the RTCP compound packet when no SSRC was present"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_NOREPORTPRESENT, "An RTCP compound packet must contain a SR or RR"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING, "The RTCP compound packet builder is not initialized"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT, "Adding this data would exceed the specified maximum RTCP compound packet size"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_REPORTNOTSTARTED, "Tried to add a report block to the RTCP compound packet when no SR or RR was started"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_TOOMANYSSRCS, "Only 31 SSRCs will fit into a BYE packet for the RTCP compound packet"}, + { ERR_RTP_RTCPCOMPPACKBUILDER_TOTALITEMLENGTHTOOBIG, "The total data for the SDES PRIV item exceeds the maximum size (255 bytes) of an SDES item"}, + { ERR_RTP_RTCPPACKETBUILDER_ALREADYINIT, "The RTCP packet builder is already initialized"}, + { ERR_RTP_RTCPPACKETBUILDER_ILLEGALMAXPACKSIZE, "The specified maximum packet size for the RTCP packet builder is too small"}, + { ERR_RTP_RTCPPACKETBUILDER_ILLEGALTIMESTAMPUNIT, "Speficied an illegal timestamp unit for the the RTCP packet builder"}, + { ERR_RTP_RTCPPACKETBUILDER_NOTINIT, "The RTCP packet builder was not initialized"}, + { ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON, "The RTCP compound packet filled sooner than expected"}, + { ERR_RTP_SCHEDPARAMS_BADFRACTION, "Illegal sender bandwidth fraction specified"}, + { ERR_RTP_SCHEDPARAMS_BADMINIMUMINTERVAL, "The minimum RTCP interval specified for the scheduler is too small"}, + { ERR_RTP_SCHEDPARAMS_INVALIDBANDWIDTH, "Invalid RTCP bandwidth specified for the RTCP scheduler"}, + { ERR_RTP_SDES_LENGTHTOOBIG, "Specified size for the SDES item exceeds 255 bytes"}, + { ERR_RTP_SDES_PREFIXNOTFOUND, "The specified SDES PRIV prefix was not found"}, + { ERR_RTP_SESSION_ALREADYCREATED, "The session is already created"}, + { ERR_RTP_SESSION_CANTGETLOGINNAME, "Can't retrieve login name"}, + { ERR_RTP_SESSION_CANTINITMUTEX, "A mutex for the RTP session couldn't be initialized"}, + { ERR_RTP_SESSION_MAXPACKETSIZETOOSMALL, "The maximum packet size specified for the RTP session is too small"}, + { ERR_RTP_SESSION_NOTCREATED, "The RTP session was not created"}, + { ERR_RTP_SESSION_UNSUPPORTEDTRANSMISSIONPROTOCOL, "The requested transmission protocol for the RTP session is not supported"}, + { ERR_RTP_SESSION_USINGPOLLTHREAD, "This function is not available when using the RTP poll thread feature"}, + { ERR_RTP_SESSION_USERDEFINEDTRANSMITTERNULL, "A user-defined transmitter was requested but the supplied transmitter component is NULL"}, + { ERR_RTP_SOURCES_ALREADYHAVEOWNSSRC, "Only one source can be marked as own SSRC in the source table"}, + { ERR_RTP_SOURCES_DONTHAVEOWNSSRC, "No source was marked as own SSRC in the source table"}, + { ERR_RTP_SOURCES_ILLEGALSDESTYPE, "Illegal SDES type specified for processing into the source table"}, + { ERR_RTP_SOURCES_SSRCEXISTS, "Can't create own SSRC because this SSRC identifier is already in the source table"}, + { ERR_RTP_UDPV4TRANS_ALREADYCREATED, "The transmitter was already created"}, + { ERR_RTP_UDPV4TRANS_ALREADYINIT, "The transmitter was already initialize"}, + { ERR_RTP_UDPV4TRANS_ALREADYWAITING, "The transmitter is already waiting for incoming data"}, + { ERR_RTP_UDPV4TRANS_CANTBINDRTCPSOCKET, "The 'bind' call for the RTCP socket failed"}, + { ERR_RTP_UDPV4TRANS_CANTBINDRTPSOCKET, "The 'bind' call for the RTP socket failed"}, + { ERR_RTP_UDPV4TRANS_CANTCALCULATELOCALIP, "The local IP addresses could not be determined"}, + { ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS, "Couldn't create the sockets used to abort waiting for incoming data"}, + { ERR_RTP_UDPV4TRANS_CANTCREATEPIPE, "Couldn't create the pipe used to abort waiting for incoming data"}, + { ERR_RTP_UDPV4TRANS_CANTCREATESOCKET, "Couldn't create the RTP or RTCP socket"}, + { ERR_RTP_UDPV4TRANS_CANTINITMUTEX, "Failed to initialize a mutex used by the transmitter"}, + { ERR_RTP_UDPV4TRANS_CANTSETRTCPRECEIVEBUF, "Couldn't set the receive buffer size for the RTCP socket"}, + { ERR_RTP_UDPV4TRANS_CANTSETRTCPTRANSMITBUF, "Couldn't set the transmission buffer size for the RTCP socket"}, + { ERR_RTP_UDPV4TRANS_CANTSETRTPRECEIVEBUF, "Couldn't set the receive buffer size for the RTP socket"}, + { ERR_RTP_UDPV4TRANS_CANTSETRTPTRANSMITBUF, "Couldn't set the transmission buffer size for the RTP socket"}, + { ERR_RTP_UDPV4TRANS_COULDNTJOINMULTICASTGROUP, "Unable to join the specified multicast group"}, + { ERR_RTP_UDPV4TRANS_DIFFERENTRECEIVEMODE, "The function called doens't match the current receive mode"}, + { ERR_RTP_UDPV4TRANS_ERRORINSELECT, "Error in the transmitter's 'select' call"}, + { ERR_RTP_UDPV4TRANS_ILLEGALPARAMETERS, "Illegal parameters type passed to the transmitter"}, + { ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE, "Specified address type isn't compatible with this transmitter"}, + { ERR_RTP_UDPV4TRANS_NOLOCALIPS, "Couldn't determine the local host name since the local IP list is empty"}, + { ERR_RTP_UDPV4TRANS_NOMULTICASTSUPPORT, "Multicast support is not available"}, + { ERR_RTP_UDPV4TRANS_NOSUCHENTRY, "Specified entry could not be found"}, + { ERR_RTP_UDPV4TRANS_NOTAMULTICASTADDRESS, "The specified address is not a multicast address"}, + { ERR_RTP_UDPV4TRANS_NOTCREATED, "The 'Create' call for this transmitter has not been called"}, + { ERR_RTP_UDPV4TRANS_NOTINIT, "The 'Init' call for this transmitter has not been called"}, + { ERR_RTP_UDPV4TRANS_NOTWAITING, "The transmitter is not waiting for incoming data"}, + { ERR_RTP_UDPV4TRANS_PORTBASENOTEVEN, "The specified port base is not an even number"}, + { ERR_RTP_UDPV4TRANS_SPECIFIEDSIZETOOBIG, "The maximum packet size is too big for this transmitter"}, + { ERR_RTP_UDPV6TRANS_ALREADYCREATED, "The transmitter was already created"}, + { ERR_RTP_UDPV6TRANS_ALREADYINIT, "The transmitter was already initialize"}, + { ERR_RTP_UDPV6TRANS_ALREADYWAITING, "The transmitter is already waiting for incoming data"}, + { ERR_RTP_UDPV6TRANS_CANTBINDRTCPSOCKET, "The 'bind' call for the RTCP socket failed"}, + { ERR_RTP_UDPV6TRANS_CANTBINDRTPSOCKET, "The 'bind' call for the RTP socket failed"}, + { ERR_RTP_UDPV6TRANS_CANTCALCULATELOCALIP, "The local IP addresses could not be determined"}, + { ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS, "Couldn't create the sockets used to abort waiting for incoming data"}, + { ERR_RTP_UDPV6TRANS_CANTCREATEPIPE, "Couldn't create the pipe used to abort waiting for incoming data"}, + { ERR_RTP_UDPV6TRANS_CANTCREATESOCKET, "Couldn't create the RTP or RTCP socket"}, + { ERR_RTP_UDPV6TRANS_CANTINITMUTEX, "Failed to initialize a mutex used by the transmitter"}, + { ERR_RTP_UDPV6TRANS_CANTSETRTCPRECEIVEBUF, "Couldn't set the receive buffer size for the RTCP socket"}, + { ERR_RTP_UDPV6TRANS_CANTSETRTCPTRANSMITBUF, "Couldn't set the transmission buffer size for the RTCP socket"}, + { ERR_RTP_UDPV6TRANS_CANTSETRTPRECEIVEBUF, "Couldn't set the receive buffer size for the RTP socket"}, + { ERR_RTP_UDPV6TRANS_CANTSETRTPTRANSMITBUF, "Couldn't set the transmission buffer size for the RTP socket"}, + { ERR_RTP_UDPV6TRANS_COULDNTJOINMULTICASTGROUP, "Unable to join the specified multicast group"}, + { ERR_RTP_UDPV6TRANS_DIFFERENTRECEIVEMODE, "The function called doens't match the current receive mode"}, + { ERR_RTP_UDPV6TRANS_ERRORINSELECT, "Error in the transmitter's 'select' call"}, + { ERR_RTP_UDPV6TRANS_ILLEGALPARAMETERS, "Illegal parameters type passed to the transmitter"}, + { ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE, "Specified address type isn't compatible with this transmitter"}, + { ERR_RTP_UDPV6TRANS_NOLOCALIPS, "Couldn't determine the local host name since the local IP list is empty"}, + { ERR_RTP_UDPV6TRANS_NOMULTICASTSUPPORT, "Multicast support is not available"}, + { ERR_RTP_UDPV6TRANS_NOSUCHENTRY, "Specified entry could not be found"}, + { ERR_RTP_UDPV6TRANS_NOTAMULTICASTADDRESS, "The specified address is not a multicast address"}, + { ERR_RTP_UDPV6TRANS_NOTCREATED, "The 'Create' call for this transmitter has not been called"}, + { ERR_RTP_UDPV6TRANS_NOTINIT, "The 'Init' call for this transmitter has not been called"}, + { ERR_RTP_UDPV6TRANS_NOTWAITING, "The transmitter is not waiting for incoming data"}, + { ERR_RTP_UDPV6TRANS_PORTBASENOTEVEN, "The specified port base is not an even number"}, + { ERR_RTP_UDPV6TRANS_SPECIFIEDSIZETOOBIG, "The maximum packet size is too big for this transmitter"}, + { ERR_RTP_TRANS_BUFFERLENGTHTOOSMALL,"The hostname is larger than the specified buffer size"}, + { ERR_RTP_SDES_MAXPRIVITEMS,"The maximum number of SDES private item prefixes was reached"}, + { ERR_RTP_INTERNALSOURCEDATA_INVALIDPROBATIONTYPE,"An invalid probation type was specified"}, + { ERR_RTP_FAKETRANS_ALREADYCREATED, "The transmitter was already created"}, + { ERR_RTP_FAKETRANS_ALREADYINIT, "The transmitter was already initialize"}, + { ERR_RTP_FAKETRANS_ALREADYWAITING, "The transmitter is already waiting for incoming data"}, + { ERR_RTP_FAKETRANS_CANTBINDRTCPSOCKET, "The 'bind' call for the RTCP socket failed"}, + { ERR_RTP_FAKETRANS_CANTBINDRTPSOCKET, "The 'bind' call for the RTP socket failed"}, + { ERR_RTP_FAKETRANS_CANTCALCULATELOCALIP, "The local IP addresses could not be determined"}, + { ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS, "Couldn't create the sockets used to abort waiting for incoming data"}, + { ERR_RTP_FAKETRANS_CANTCREATEPIPE, "Couldn't create the pipe used to abort waiting for incoming data"}, + { ERR_RTP_FAKETRANS_CANTCREATESOCKET, "Couldn't create the RTP or RTCP socket"}, + { ERR_RTP_FAKETRANS_CANTINITMUTEX, "Failed to initialize a mutex used by the transmitter"}, + { ERR_RTP_FAKETRANS_CANTSETRTCPRECEIVEBUF, "Couldn't set the receive buffer size for the RTCP socket"}, + { ERR_RTP_FAKETRANS_CANTSETRTCPTRANSMITBUF, "Couldn't set the transmission buffer size for the RTCP socket"}, + { ERR_RTP_FAKETRANS_CANTSETRTPRECEIVEBUF, "Couldn't set the receive buffer size for the RTP socket"}, + { ERR_RTP_FAKETRANS_CANTSETRTPTRANSMITBUF, "Couldn't set the transmission buffer size for the RTP socket"}, + { ERR_RTP_FAKETRANS_COULDNTJOINMULTICASTGROUP, "Unable to join the specified multicast group"}, + { ERR_RTP_FAKETRANS_DIFFERENTRECEIVEMODE, "The function called doens't match the current receive mode"}, + { ERR_RTP_FAKETRANS_ERRORINSELECT, "Error in the transmitter's 'select' call"}, + { ERR_RTP_FAKETRANS_ILLEGALPARAMETERS, "Illegal parameters type passed to the transmitter"}, + { ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE, "Specified address type isn't compatible with this transmitter"}, + { ERR_RTP_FAKETRANS_NOLOCALIPS, "Couldn't determine the local host name since the local IP list is empty"}, + { ERR_RTP_FAKETRANS_NOMULTICASTSUPPORT, "Multicast support is not available"}, + { ERR_RTP_FAKETRANS_NOSUCHENTRY, "Specified entry could not be found"}, + { ERR_RTP_FAKETRANS_NOTAMULTICASTADDRESS, "The specified address is not a multicast address"}, + { ERR_RTP_FAKETRANS_NOTCREATED, "The 'Create' call for this transmitter has not been called"}, + { ERR_RTP_FAKETRANS_NOTINIT, "The 'Init' call for this transmitter has not been called"}, + { ERR_RTP_FAKETRANS_NOTWAITING, "The transmitter is not waiting for incoming data"}, + { ERR_RTP_FAKETRANS_PORTBASENOTEVEN, "The specified port base is not an even number"}, + { ERR_RTP_FAKETRANS_SPECIFIEDSIZETOOBIG, "The maximum packet size is too big for this transmitter"}, + { ERR_RTP_FAKETRANS_INVALIDEVENT, "Expecting UNKNOWN_EVENT to set source address but got another type of event"}, + { ERR_RTP_FAKETRANS_SRCADDRNOTSET, "Got packet but src address information was not set, returning"}, + { ERR_RTP_FAKETRANS_NOTNETBUFFER, "Received buffer is not a GstNetBuffer"}, + { ERR_RTP_FAKETRANS_WAITNOTIMPLEMENTED, "The WaitForIncomingData is not implemented in the Gst transmitter"}, + { 0,0 } +}; + +std::string RTPGetErrorString(int errcode) +{ + int i; + + if (errcode >= 0) + return std::string("No error"); + + i = 0; + while (ErrorDescriptions[i].code != 0) + { + if (ErrorDescriptions[i].code == errcode) + return std::string(ErrorDescriptions[i].description); + i++; + } + + char str[16]; + + RTP_SNPRINTF(str,16,"(%d)",errcode); + + return std::string("Unknown error code") + std::string(str); +} + diff --git a/src/rtperrors.h b/src/rtperrors.h new file mode 100644 index 0000000..51a33d7 --- /dev/null +++ b/src/rtperrors.h @@ -0,0 +1,209 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtperrors.h + */ + +#ifndef RTPERRORS_H + +#define RTPERRORS_H + +#include <string> + +/** Returns a string describing the error code \c errcode. */ +std::string RTPGetErrorString(int errcode); + +#define ERR_RTP_OUTOFMEM -1 +#define ERR_RTP_NOTHREADSUPPORT -2 +#define ERR_RTP_COLLISIONLIST_BADADDRESS -3 +#define ERR_RTP_HASHTABLE_ELEMENTALREADYEXISTS -4 +#define ERR_RTP_HASHTABLE_ELEMENTNOTFOUND -5 +#define ERR_RTP_HASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX -6 +#define ERR_RTP_HASHTABLE_NOCURRENTELEMENT -7 +#define ERR_RTP_KEYHASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX -8 +#define ERR_RTP_KEYHASHTABLE_KEYALREADYEXISTS -9 +#define ERR_RTP_KEYHASHTABLE_KEYNOTFOUND -10 +#define ERR_RTP_KEYHASHTABLE_NOCURRENTELEMENT -11 +#define ERR_RTP_PACKBUILD_ALREADYINIT -12 +#define ERR_RTP_PACKBUILD_CSRCALREADYINLIST -13 +#define ERR_RTP_PACKBUILD_CSRCLISTFULL -14 +#define ERR_RTP_PACKBUILD_CSRCNOTINLIST -15 +#define ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET -16 +#define ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET -17 +#define ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET -18 +#define ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE -19 +#define ERR_RTP_PACKBUILD_NOTINIT -20 +#define ERR_RTP_PACKET_BADPAYLOADTYPE -21 +#define ERR_RTP_PACKET_DATAEXCEEDSMAXSIZE -22 +#define ERR_RTP_PACKET_EXTERNALBUFFERNULL -23 +#define ERR_RTP_PACKET_ILLEGALBUFFERSIZE -24 +#define ERR_RTP_PACKET_INVALIDPACKET -25 +#define ERR_RTP_PACKET_TOOMANYCSRCS -26 +#define ERR_RTP_POLLTHREAD_ALREADYRUNNING -27 +#define ERR_RTP_POLLTHREAD_CANTINITMUTEX -28 +#define ERR_RTP_POLLTHREAD_CANTSTARTTHREAD -29 +#define ERR_RTP_RTCPCOMPOUND_INVALIDPACKET -30 +#define ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILDING -31 +#define ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYBUILT -32 +#define ERR_RTP_RTCPCOMPPACKBUILDER_ALREADYGOTREPORT -33 +#define ERR_RTP_RTCPCOMPPACKBUILDER_APPDATALENTOOBIG -34 +#define ERR_RTP_RTCPCOMPPACKBUILDER_BUFFERSIZETOOSMALL -35 +#define ERR_RTP_RTCPCOMPPACKBUILDER_ILLEGALAPPDATALENGTH -36 +#define ERR_RTP_RTCPCOMPPACKBUILDER_ILLEGALSUBTYPE -37 +#define ERR_RTP_RTCPCOMPPACKBUILDER_INVALIDITEMTYPE -38 +#define ERR_RTP_RTCPCOMPPACKBUILDER_MAXPACKETSIZETOOSMALL -39 +#define ERR_RTP_RTCPCOMPPACKBUILDER_NOCURRENTSOURCE -40 +#define ERR_RTP_RTCPCOMPPACKBUILDER_NOREPORTPRESENT -41 +#define ERR_RTP_RTCPCOMPPACKBUILDER_NOTBUILDING -42 +#define ERR_RTP_RTCPCOMPPACKBUILDER_NOTENOUGHBYTESLEFT -43 +#define ERR_RTP_RTCPCOMPPACKBUILDER_REPORTNOTSTARTED -44 +#define ERR_RTP_RTCPCOMPPACKBUILDER_TOOMANYSSRCS -45 +#define ERR_RTP_RTCPCOMPPACKBUILDER_TOTALITEMLENGTHTOOBIG -46 +#define ERR_RTP_RTCPPACKETBUILDER_ALREADYINIT -47 +#define ERR_RTP_RTCPPACKETBUILDER_ILLEGALMAXPACKSIZE -48 +#define ERR_RTP_RTCPPACKETBUILDER_ILLEGALTIMESTAMPUNIT -49 +#define ERR_RTP_RTCPPACKETBUILDER_NOTINIT -50 +#define ERR_RTP_RTCPPACKETBUILDER_PACKETFILLEDTOOSOON -51 +#define ERR_RTP_SCHEDPARAMS_BADFRACTION -52 +#define ERR_RTP_SCHEDPARAMS_BADMINIMUMINTERVAL -53 +#define ERR_RTP_SCHEDPARAMS_INVALIDBANDWIDTH -54 +#define ERR_RTP_SDES_LENGTHTOOBIG -55 +#define ERR_RTP_SDES_MAXPRIVITEMS -56 +#define ERR_RTP_SDES_PREFIXNOTFOUND -57 +#define ERR_RTP_SESSION_ALREADYCREATED -58 +#define ERR_RTP_SESSION_CANTGETLOGINNAME -59 +#define ERR_RTP_SESSION_CANTINITMUTEX -60 +#define ERR_RTP_SESSION_MAXPACKETSIZETOOSMALL -61 +#define ERR_RTP_SESSION_NOTCREATED -62 +#define ERR_RTP_SESSION_UNSUPPORTEDTRANSMISSIONPROTOCOL -63 +#define ERR_RTP_SESSION_USINGPOLLTHREAD -64 +#define ERR_RTP_SOURCES_ALREADYHAVEOWNSSRC -65 +#define ERR_RTP_SOURCES_DONTHAVEOWNSSRC -66 +#define ERR_RTP_SOURCES_ILLEGALSDESTYPE -67 +#define ERR_RTP_SOURCES_SSRCEXISTS -68 +#define ERR_RTP_TRANS_BUFFERLENGTHTOOSMALL -69 +#define ERR_RTP_UDPV4TRANS_ALREADYCREATED -70 +#define ERR_RTP_UDPV4TRANS_ALREADYINIT -71 +#define ERR_RTP_UDPV4TRANS_ALREADYWAITING -72 +#define ERR_RTP_UDPV4TRANS_CANTBINDRTCPSOCKET -73 +#define ERR_RTP_UDPV4TRANS_CANTBINDRTPSOCKET -74 +#define ERR_RTP_UDPV4TRANS_CANTCALCULATELOCALIP -75 +#define ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS -76 +#define ERR_RTP_UDPV4TRANS_CANTCREATEPIPE -77 +#define ERR_RTP_UDPV4TRANS_CANTCREATESOCKET -78 +#define ERR_RTP_UDPV4TRANS_CANTINITMUTEX -79 +#define ERR_RTP_UDPV4TRANS_CANTSETRTCPRECEIVEBUF -80 +#define ERR_RTP_UDPV4TRANS_CANTSETRTCPTRANSMITBUF -81 +#define ERR_RTP_UDPV4TRANS_CANTSETRTPRECEIVEBUF -82 +#define ERR_RTP_UDPV4TRANS_CANTSETRTPTRANSMITBUF -83 +#define ERR_RTP_UDPV4TRANS_COULDNTJOINMULTICASTGROUP -84 +#define ERR_RTP_UDPV4TRANS_DIFFERENTRECEIVEMODE -85 +#define ERR_RTP_UDPV4TRANS_ERRORINSELECT -86 +#define ERR_RTP_UDPV4TRANS_ILLEGALPARAMETERS -87 +#define ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE -88 +#define ERR_RTP_UDPV4TRANS_NOLOCALIPS -89 +#define ERR_RTP_UDPV4TRANS_NOMULTICASTSUPPORT -90 +#define ERR_RTP_UDPV4TRANS_NOSUCHENTRY -91 +#define ERR_RTP_UDPV4TRANS_NOTAMULTICASTADDRESS -92 +#define ERR_RTP_UDPV4TRANS_NOTCREATED -93 +#define ERR_RTP_UDPV4TRANS_NOTINIT -94 +#define ERR_RTP_UDPV4TRANS_NOTWAITING -95 +#define ERR_RTP_UDPV4TRANS_PORTBASENOTEVEN -96 +#define ERR_RTP_UDPV4TRANS_SPECIFIEDSIZETOOBIG -97 +#define ERR_RTP_UDPV6TRANS_ALREADYCREATED -98 +#define ERR_RTP_UDPV6TRANS_ALREADYINIT -99 +#define ERR_RTP_UDPV6TRANS_ALREADYWAITING -100 +#define ERR_RTP_UDPV6TRANS_CANTBINDRTCPSOCKET -101 +#define ERR_RTP_UDPV6TRANS_CANTBINDRTPSOCKET -102 +#define ERR_RTP_UDPV6TRANS_CANTCALCULATELOCALIP -103 +#define ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS -104 +#define ERR_RTP_UDPV6TRANS_CANTCREATEPIPE -105 +#define ERR_RTP_UDPV6TRANS_CANTCREATESOCKET -106 +#define ERR_RTP_UDPV6TRANS_CANTINITMUTEX -107 +#define ERR_RTP_UDPV6TRANS_CANTSETRTCPRECEIVEBUF -108 +#define ERR_RTP_UDPV6TRANS_CANTSETRTCPTRANSMITBUF -109 +#define ERR_RTP_UDPV6TRANS_CANTSETRTPRECEIVEBUF -110 +#define ERR_RTP_UDPV6TRANS_CANTSETRTPTRANSMITBUF -111 +#define ERR_RTP_UDPV6TRANS_COULDNTJOINMULTICASTGROUP -112 +#define ERR_RTP_UDPV6TRANS_DIFFERENTRECEIVEMODE -113 +#define ERR_RTP_UDPV6TRANS_ERRORINSELECT -114 +#define ERR_RTP_UDPV6TRANS_ILLEGALPARAMETERS -115 +#define ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE -116 +#define ERR_RTP_UDPV6TRANS_NOLOCALIPS -117 +#define ERR_RTP_UDPV6TRANS_NOMULTICASTSUPPORT -118 +#define ERR_RTP_UDPV6TRANS_NOSUCHENTRY -119 +#define ERR_RTP_UDPV6TRANS_NOTAMULTICASTADDRESS -120 +#define ERR_RTP_UDPV6TRANS_NOTCREATED -121 +#define ERR_RTP_UDPV6TRANS_NOTINIT -122 +#define ERR_RTP_UDPV6TRANS_NOTWAITING -123 +#define ERR_RTP_UDPV6TRANS_PORTBASENOTEVEN -124 +#define ERR_RTP_UDPV6TRANS_SPECIFIEDSIZETOOBIG -125 +#define ERR_RTP_INTERNALSOURCEDATA_INVALIDPROBATIONTYPE -126 +#define ERR_RTP_SESSION_USERDEFINEDTRANSMITTERNULL -127 +#define ERR_RTP_FAKETRANS_ALREADYCREATED -128 +#define ERR_RTP_FAKETRANS_ALREADYINIT -129 +#define ERR_RTP_FAKETRANS_ALREADYWAITING -130 +#define ERR_RTP_FAKETRANS_CANTBINDRTCPSOCKET -131 +#define ERR_RTP_FAKETRANS_CANTBINDRTPSOCKET -132 +#define ERR_RTP_FAKETRANS_CANTCALCULATELOCALIP -133 +#define ERR_RTP_FAKETRANS_CANTCREATEABORTDESCRIPTORS -134 +#define ERR_RTP_FAKETRANS_CANTCREATEPIPE -135 +#define ERR_RTP_FAKETRANS_CANTCREATESOCKET -136 +#define ERR_RTP_FAKETRANS_CANTINITMUTEX -137 +#define ERR_RTP_FAKETRANS_CANTSETRTCPRECEIVEBUF -138 +#define ERR_RTP_FAKETRANS_CANTSETRTCPTRANSMITBUF -139 +#define ERR_RTP_FAKETRANS_CANTSETRTPRECEIVEBUF -140 +#define ERR_RTP_FAKETRANS_CANTSETRTPTRANSMITBUF -141 +#define ERR_RTP_FAKETRANS_COULDNTJOINMULTICASTGROUP -142 +#define ERR_RTP_FAKETRANS_DIFFERENTRECEIVEMODE -143 +#define ERR_RTP_FAKETRANS_ERRORINSELECT -144 +#define ERR_RTP_FAKETRANS_ILLEGALPARAMETERS -145 +#define ERR_RTP_FAKETRANS_INVALIDADDRESSTYPE -146 +#define ERR_RTP_FAKETRANS_NOLOCALIPS -147 +#define ERR_RTP_FAKETRANS_NOMULTICASTSUPPORT -148 +#define ERR_RTP_FAKETRANS_NOSUCHENTRY -149 +#define ERR_RTP_FAKETRANS_NOTAMULTICASTADDRESS -150 +#define ERR_RTP_FAKETRANS_NOTCREATED -151 +#define ERR_RTP_FAKETRANS_NOTINIT -152 +#define ERR_RTP_FAKETRANS_NOTWAITING -153 +#define ERR_RTP_FAKETRANS_PORTBASENOTEVEN -154 +#define ERR_RTP_FAKETRANS_SPECIFIEDSIZETOOBIG -155 +#define ERR_RTP_FAKETRANS_INVALIDEVENT -156 +#define ERR_RTP_FAKETRANS_SRCADDRNOTSET -157 +#define ERR_RTP_FAKETRANS_NOTNETBUFFER -158 +#define ERR_RTP_FAKETRANS_WAITNOTIMPLEMENTED -159 + + + +#endif // RTPERRORS_H + diff --git a/src/rtphashtable.h b/src/rtphashtable.h new file mode 100644 index 0000000..aa482c0 --- /dev/null +++ b/src/rtphashtable.h @@ -0,0 +1,337 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPHASHTABLE_H + +#define RTPHASHTABLE_H + +/** + * \file rtphashtable.h + */ + +#include "rtperrors.h" +#include "rtpmemoryobject.h" + +#ifdef RTPDEBUG +#include <iostream> +#endif // RTPDEBUG + +//template<class Element,int GetIndex(const Element &k),int hashsize> +template<class Element,class GetIndex,int hashsize> +class RTPHashTable : public RTPMemoryObject +{ +public: + RTPHashTable(RTPMemoryManager *mgr = 0, int memtype = RTPMEM_TYPE_OTHER); + ~RTPHashTable() { Clear(); } + + void GotoFirstElement() { curhashelem = firsthashelem; } + void GotoLastElement() { curhashelem = lasthashelem; } + bool HasCurrentElement() { return (curhashelem == 0)?false:true; } + int DeleteCurrentElement(); + Element &GetCurrentElement() { return curhashelem->GetElement(); } + int GotoElement(const Element &e); + bool HasElement(const Element &e); + void GotoNextElement(); + void GotoPreviousElement(); + void Clear(); + + int AddElement(const Element &elem); + int DeleteElement(const Element &elem); + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + class HashElement + { + public: + HashElement(const Element &e,int index):element(e) { hashprev = 0; hashnext = 0; listnext = 0; listprev = 0; hashindex = index; } + int GetHashIndex() { return hashindex; } + Element &GetElement() { return element; } +#ifdef RTPDEBUG + void Dump() { std::cout << "\tHash index " << hashindex << " | Element " << element << std::endl; } +#endif // RTPDEBUG + private: + int hashindex; + Element element; + public: + HashElement *hashprev,*hashnext; + HashElement *listprev,*listnext; + }; + + HashElement *table[hashsize]; + HashElement *firsthashelem,*lasthashelem; + HashElement *curhashelem; +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + int memorytype; +#endif // RTP_SUPPORT_MEMORYMANAGEMENT +}; + +template<class Element,class GetIndex,int hashsize> +inline RTPHashTable<Element,GetIndex,hashsize>::RTPHashTable(RTPMemoryManager *mgr,int memtype) : RTPMemoryObject(mgr) +{ + for (int i = 0 ; i < hashsize ; i++) + table[i] = 0; + firsthashelem = 0; + lasthashelem = 0; +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + memorytype = memtype; +#endif // RTP_SUPPORT_MEMORYMANAGEMENT +} + +template<class Element,class GetIndex,int hashsize> +inline int RTPHashTable<Element,GetIndex,hashsize>::DeleteCurrentElement() +{ + if (curhashelem) + { + HashElement *tmp1,*tmp2; + int index; + + // First, relink elements in current hash bucket + + index = curhashelem->GetHashIndex(); + tmp1 = curhashelem->hashprev; + tmp2 = curhashelem->hashnext; + if (tmp1 == 0) // no previous element in hash bucket + { + table[index] = tmp2; + if (tmp2 != 0) + tmp2->hashprev = 0; + } + else // there is a previous element in the hash bucket + { + tmp1->hashnext = tmp2; + if (tmp2 != 0) + tmp2->hashprev = tmp1; + } + + // Relink elements in list + + tmp1 = curhashelem->listprev; + tmp2 = curhashelem->listnext; + if (tmp1 == 0) // curhashelem is first in list + { + firsthashelem = tmp2; + if (tmp2 != 0) + tmp2->listprev = 0; + else // curhashelem is also last in list + lasthashelem = 0; + } + else + { + tmp1->listnext = tmp2; + if (tmp2 != 0) + tmp2->listprev = tmp1; + else // curhashelem is last in list + lasthashelem = tmp1; + } + + // finally, with everything being relinked, we can delete curhashelem + RTPDelete(curhashelem,GetMemoryManager()); + curhashelem = tmp2; // Set to next element in the list + } + else + return ERR_RTP_HASHTABLE_NOCURRENTELEMENT; + return 0; +} + +template<class Element,class GetIndex,int hashsize> +inline int RTPHashTable<Element,GetIndex,hashsize>::GotoElement(const Element &e) +{ + int index; + bool found; + + index = GetIndex::GetIndex(e); + if (index >= hashsize) + return ERR_RTP_HASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX; + + curhashelem = table[index]; + found = false; + while(!found && curhashelem != 0) + { + if (curhashelem->GetElement() == e) + found = true; + else + curhashelem = curhashelem->hashnext; + } + if (!found) + return ERR_RTP_HASHTABLE_ELEMENTNOTFOUND; + return 0; +} + +template<class Element,class GetIndex,int hashsize> +inline bool RTPHashTable<Element,GetIndex,hashsize>::HasElement(const Element &e) +{ + int index; + bool found; + HashElement *tmp; + + index = GetIndex::GetIndex(e); + if (index >= hashsize) + return false; + + tmp = table[index]; + found = false; + while(!found && tmp != 0) + { + if (tmp->GetElement() == e) + found = true; + else + tmp = tmp->hashnext; + } + return found; +} + +template<class Element,class GetIndex,int hashsize> +inline void RTPHashTable<Element,GetIndex,hashsize>::GotoNextElement() +{ + if (curhashelem) + curhashelem = curhashelem->listnext; +} + +template<class Element,class GetIndex,int hashsize> +inline void RTPHashTable<Element,GetIndex,hashsize>::GotoPreviousElement() +{ + if (curhashelem) + curhashelem = curhashelem->listprev; +} + +template<class Element,class GetIndex,int hashsize> +inline void RTPHashTable<Element,GetIndex,hashsize>::Clear() +{ + HashElement *tmp1,*tmp2; + + for (int i = 0 ; i < hashsize ; i++) + table[i] = 0; + + tmp1 = firsthashelem; + while (tmp1 != 0) + { + tmp2 = tmp1->listnext; + RTPDelete(tmp1,GetMemoryManager()); + tmp1 = tmp2; + } + firsthashelem = 0; + lasthashelem = 0; +} + +template<class Element,class GetIndex,int hashsize> +inline int RTPHashTable<Element,GetIndex,hashsize>::AddElement(const Element &elem) +{ + int index; + bool found; + HashElement *e,*newelem; + + index = GetIndex::GetIndex(elem); + if (index >= hashsize) + return ERR_RTP_HASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX; + + e = table[index]; + found = false; + while(!found && e != 0) + { + if (e->GetElement() == elem) + found = true; + else + e = e->hashnext; + } + if (found) + return ERR_RTP_HASHTABLE_ELEMENTALREADYEXISTS; + + // Okay, the key doesn't exist, so we can add the new element in the hash table + + newelem = RTPNew(GetMemoryManager(),memorytype) HashElement(elem,index); + if (newelem == 0) + return ERR_RTP_OUTOFMEM; + + e = table[index]; + table[index] = newelem; + newelem->hashnext = e; + if (e != 0) + e->hashprev = newelem; + + // Now, we still got to add it to the linked list + + if (firsthashelem == 0) + { + firsthashelem = newelem; + lasthashelem = newelem; + } + else // there already are some elements in the list + { + lasthashelem->listnext = newelem; + newelem->listprev = lasthashelem; + lasthashelem = newelem; + } + return 0; +} + +template<class Element,class GetIndex,int hashsize> +inline int RTPHashTable<Element,GetIndex,hashsize>::DeleteElement(const Element &elem) +{ + int status; + + status = GotoElement(elem); + if (status < 0) + return status; + return DeleteCurrentElement(); +} + +#ifdef RTPDEBUG +template<class Element,class GetIndex,int hashsize> +inline void RTPHashTable<Element,GetIndex,hashsize>::Dump() +{ + HashElement *e; + + std::cout << "DUMPING TABLE CONTENTS:" << std::endl; + for (int i = 0 ; i < hashsize ; i++) + { + e = table[i]; + while (e != 0) + { + e->Dump(); + e = e->hashnext; + } + } + + std::cout << "DUMPING LIST CONTENTS:" << std::endl; + e = firsthashelem; + while (e != 0) + { + e->Dump(); + e = e->listnext; + } +} +#endif // RTPDEBUG + +#endif // RTPHASHTABLE_H + diff --git a/src/rtpinternalsourcedata.cpp b/src/rtpinternalsourcedata.cpp new file mode 100644 index 0000000..d023f7d --- /dev/null +++ b/src/rtpinternalsourcedata.cpp @@ -0,0 +1,282 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpinternalsourcedata.h" +#include "rtppacket.h" +#include <string.h> + +#include "rtpdebug.h" + +#define RTPINTERNALSOURCEDATA_MAXPROBATIONPACKETS 32 + +RTPInternalSourceData::RTPInternalSourceData(uint32_t ssrc,RTPSources::ProbationType probtype,RTPMemoryManager *mgr):RTPSourceData(ssrc,mgr) +{ +#ifdef RTP_SUPPORT_PROBATION + probationtype = probtype; +#endif // RTP_SUPPORT_PROBATION +} + +RTPInternalSourceData::~RTPInternalSourceData() +{ +} + +// The following function should delete rtppack if necessary +int RTPInternalSourceData::ProcessRTPPacket(RTPPacket *rtppack,const RTPTime &receivetime,bool *stored) +{ + bool accept,onprobation,applyprobation; + double tsunit; + + *stored = false; + + if (timestampunit < 0) + tsunit = INF_GetEstimatedTimestampUnit(); + else + tsunit = timestampunit; + +#ifdef RTP_SUPPORT_PROBATION + if (validated) // If the source is our own process, we can already be validated. No + applyprobation = false; // probation should be applied in that case. + else + { + if (probationtype == RTPSources::NoProbation) + applyprobation = false; + else + applyprobation = true; + } +#else + applyprobation = false; +#endif // RTP_SUPPORT_PROBATION + + stats.ProcessPacket(rtppack,receivetime,tsunit,ownssrc,&accept,applyprobation,&onprobation); + +#ifdef RTP_SUPPORT_PROBATION + switch (probationtype) + { + case RTPSources::ProbationStore: + if (!(onprobation || accept)) + return 0; + if (accept) + validated = true; + break; + case RTPSources::ProbationDiscard: + case RTPSources::NoProbation: + if (!accept) + return 0; + validated = true; + break; + default: + return ERR_RTP_INTERNALSOURCEDATA_INVALIDPROBATIONTYPE; + } +#else + if (!accept) + return 0; + validated = true; +#endif // RTP_SUPPORT_PROBATION; + + if (validated && !ownssrc) // for own ssrc these variables depend on the outgoing packets, not on the incoming + issender = true; + + // Now, we can place the packet in the queue + + if (packetlist.empty()) + { + *stored = true; + packetlist.push_back(rtppack); + return 0; + } + + if (!validated) // still on probation + { + // Make sure that we don't buffer too much packets to avoid wasting memory + // on a bad source. Delete the packet in the queue with the lowest sequence + // number. + if (packetlist.size() == RTPINTERNALSOURCEDATA_MAXPROBATIONPACKETS) + { + RTPPacket *p = *(packetlist.begin()); + packetlist.pop_front(); + RTPDelete(p,GetMemoryManager()); + } + } + + // find the right position to insert the packet + + std::list<RTPPacket*>::iterator it,start; + bool done = false; + uint32_t newseqnr = rtppack->GetExtendedSequenceNumber(); + + it = packetlist.end(); + --it; + start = packetlist.begin(); + + while (!done) + { + RTPPacket *p; + uint32_t seqnr; + + p = *it; + seqnr = p->GetExtendedSequenceNumber(); + if (seqnr > newseqnr) + { + if (it != start) + --it; + else // we're at the start of the list + { + *stored = true; + done = true; + packetlist.push_front(rtppack); + } + } + else if (seqnr < newseqnr) // insert after this packet + { + ++it; + packetlist.insert(it,rtppack); + done = true; + *stored = true; + } + else // they're equal !! Drop packet + { + done = true; + } + } + + return 0; +} + +int RTPInternalSourceData::ProcessSDESItem(uint8_t sdesid,const uint8_t *data,size_t itemlen,const RTPTime &receivetime,bool *cnamecollis) +{ + *cnamecollis = false; + + stats.SetLastMessageTime(receivetime); + + switch(sdesid) + { + case RTCP_SDES_ID_CNAME: + { + size_t curlen; + uint8_t *oldcname; + + // NOTE: we're going to make sure that the CNAME is only set once. + oldcname = SDESinf.GetCNAME(&curlen); + if (curlen == 0) + { + // if CNAME is set, the source is validated + SDESinf.SetCNAME(data,itemlen); + validated = true; + } + else // check if this CNAME is equal to the one that is already present + { + if (curlen != itemlen) + *cnamecollis = true; + else + { + if (memcmp(data,oldcname,itemlen) != 0) + *cnamecollis = true; + } + } + } + break; + case RTCP_SDES_ID_NAME: + { + uint8_t *oldname; + size_t oldlen; + + oldname = SDESinf.GetName(&oldlen); + if (oldlen == 0) // Name not set + return SDESinf.SetName(data,itemlen); + } + break; + case RTCP_SDES_ID_EMAIL: + { + uint8_t *oldemail; + size_t oldlen; + + oldemail = SDESinf.GetEMail(&oldlen); + if (oldlen == 0) + return SDESinf.SetEMail(data,itemlen); + } + break; + case RTCP_SDES_ID_PHONE: + return SDESinf.SetPhone(data,itemlen); + case RTCP_SDES_ID_LOCATION: + return SDESinf.SetLocation(data,itemlen); + case RTCP_SDES_ID_TOOL: + { + uint8_t *oldtool; + size_t oldlen; + + oldtool = SDESinf.GetTool(&oldlen); + if (oldlen == 0) + return SDESinf.SetTool(data,itemlen); + } + break; + case RTCP_SDES_ID_NOTE: + stats.SetLastNoteTime(receivetime); + return SDESinf.SetNote(data,itemlen); + } + return 0; +} + +#ifdef RTP_SUPPORT_SDESPRIV + +int RTPInternalSourceData::ProcessPrivateSDESItem(const uint8_t *prefix,size_t prefixlen,const uint8_t *value,size_t valuelen,const RTPTime &receivetime) +{ + int status; + + stats.SetLastMessageTime(receivetime); + status = SDESinf.SetPrivateValue(prefix,prefixlen,value,valuelen); + if (status == ERR_RTP_SDES_MAXPRIVITEMS) + return 0; // don't stop processing just because the number of items is full + return status; +} + +#endif // RTP_SUPPORT_SDESPRIV + +int RTPInternalSourceData::ProcessBYEPacket(const uint8_t *reason,size_t reasonlen,const RTPTime &receivetime) +{ + if (byereason) + { + RTPDeleteByteArray(byereason,GetMemoryManager()); + byereason = 0; + byereasonlen = 0; + } + + byetime = receivetime; + byereason = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTCPBYEREASON) uint8_t[reasonlen]; + if (byereason == 0) + return ERR_RTP_OUTOFMEM; + memcpy(byereason,reason,reasonlen); + byereasonlen = reasonlen; + receivedbye = true; + stats.SetLastMessageTime(receivetime); + return 0; +} + diff --git a/src/rtpinternalsourcedata.h b/src/rtpinternalsourcedata.h new file mode 100644 index 0000000..7b01016 --- /dev/null +++ b/src/rtpinternalsourcedata.h @@ -0,0 +1,130 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpinternalsourcedata.h + */ + +#ifndef RTPINTERNALSOURCEDATA_H + +#define RTPINTERNALSOURCEDATA_H + +#include "rtpconfig.h" +#include "rtpsourcedata.h" +#include "rtpaddress.h" +#include "rtptimeutilities.h" +#include "rtpsources.h" + +class RTPInternalSourceData : public RTPSourceData +{ +public: + RTPInternalSourceData(uint32_t ssrc, RTPSources::ProbationType probtype, RTPMemoryManager *mgr = 0); + ~RTPInternalSourceData(); + + int ProcessRTPPacket(RTPPacket *rtppack,const RTPTime &receivetime,bool *stored); + void ProcessSenderInfo(const RTPNTPTime &ntptime,uint32_t rtptime,uint32_t packetcount, + uint32_t octetcount,const RTPTime &receivetime) { SRprevinf = SRinf; SRinf.Set(ntptime,rtptime,packetcount,octetcount,receivetime); stats.SetLastMessageTime(receivetime); } + void ProcessReportBlock(uint8_t fractionlost,int32_t lostpackets,uint32_t exthighseqnr, + uint32_t jitter,uint32_t lsr,uint32_t dlsr, + const RTPTime &receivetime) { RRprevinf = RRinf; RRinf.Set(fractionlost,lostpackets,exthighseqnr,jitter,lsr,dlsr,receivetime); stats.SetLastMessageTime(receivetime); } + void UpdateMessageTime(const RTPTime &receivetime) { stats.SetLastMessageTime(receivetime); } + int ProcessSDESItem(uint8_t sdesid,const uint8_t *data,size_t itemlen,const RTPTime &receivetime,bool *cnamecollis); +#ifdef RTP_SUPPORT_SDESPRIV + int ProcessPrivateSDESItem(const uint8_t *prefix,size_t prefixlen,const uint8_t *value,size_t valuelen,const RTPTime &receivetime); +#endif // RTP_SUPPORT_SDESPRIV + int ProcessBYEPacket(const uint8_t *reason,size_t reasonlen,const RTPTime &receivetime); + + int SetRTPDataAddress(const RTPAddress *a); + int SetRTCPDataAddress(const RTPAddress *a); + + void ClearSenderFlag() { issender = false; } + void SentRTPPacket() { if (!ownssrc) return; RTPTime t = RTPTime::CurrentTime(); issender = true; stats.SetLastRTPPacketTime(t); stats.SetLastMessageTime(t); } + void SetOwnSSRC() { ownssrc = true; validated = true; } + void SetCSRC() { validated = true; iscsrc = true; } + void ClearNote() { SDESinf.SetNote(0,0); } + +#ifdef RTP_SUPPORT_PROBATION +private: + RTPSources::ProbationType probationtype; +#endif // RTP_SUPPORT_PROBATION +}; + +inline int RTPInternalSourceData::SetRTPDataAddress(const RTPAddress *a) +{ + if (a == 0) + { + if (rtpaddr) + { + RTPDelete(rtpaddr,GetMemoryManager()); + rtpaddr = 0; + } + } + else + { + RTPAddress *newaddr = a->CreateCopy(GetMemoryManager()); + if (newaddr == 0) + return ERR_RTP_OUTOFMEM; + + if (rtpaddr && a != rtpaddr) + RTPDelete(rtpaddr,GetMemoryManager()); + rtpaddr = newaddr; + } + isrtpaddrset = true; + return 0; +} + +inline int RTPInternalSourceData::SetRTCPDataAddress(const RTPAddress *a) +{ + if (a == 0) + { + if (rtcpaddr) + { + RTPDelete(rtcpaddr,GetMemoryManager()); + rtcpaddr = 0; + } + } + else + { + RTPAddress *newaddr = a->CreateCopy(GetMemoryManager()); + if (newaddr == 0) + return ERR_RTP_OUTOFMEM; + + if (rtcpaddr && a != rtcpaddr) + RTPDelete(rtcpaddr,GetMemoryManager()); + rtcpaddr = newaddr; + } + isrtcpaddrset = true; + return 0; +} + +#endif // RTPINTERNALSOURCEDATA_H + diff --git a/src/rtpipv4address.cpp b/src/rtpipv4address.cpp new file mode 100644 index 0000000..de5fcb9 --- /dev/null +++ b/src/rtpipv4address.cpp @@ -0,0 +1,83 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpipv4address.h" +#include "rtpmemorymanager.h" +#ifdef RTPDEBUG + #include "rtpdefines.h" + #include <stdio.h> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +bool RTPIPv4Address::IsSameAddress(const RTPAddress *addr) const +{ + if (addr == 0) + return false; + if (addr->GetAddressType() != IPv4Address) + return false; + + const RTPIPv4Address *addr2 = (const RTPIPv4Address *)addr; + if (addr2->GetIP() == ip && addr2->GetPort() == port) + return true; + return false; +} + +bool RTPIPv4Address::IsFromSameHost(const RTPAddress *addr) const +{ + if (addr == 0) + return false; + if (addr->GetAddressType() != IPv4Address) + return false; + + const RTPIPv4Address *addr2 = (const RTPIPv4Address *)addr; + if (addr2->GetIP() == ip) + return true; + return false; +} + +RTPAddress *RTPIPv4Address::CreateCopy(RTPMemoryManager *mgr) const +{ + RTPIPv4Address *a = RTPNew(mgr,RTPMEM_TYPE_CLASS_RTPADDRESS) RTPIPv4Address(ip,port); + return a; +} + +#ifdef RTPDEBUG +std::string RTPIPv4Address::GetAddressString() const +{ + char str[24]; + + RTP_SNPRINTF(str,24,"%d.%d.%d.%d:%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF), + (int)(ip&0xFF),(int)port); + return std::string(str); +} +#endif // RTPDEBUG diff --git a/src/rtpipv4address.h b/src/rtpipv4address.h new file mode 100644 index 0000000..08845fd --- /dev/null +++ b/src/rtpipv4address.h @@ -0,0 +1,90 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpipv4address.h + */ + +#ifndef RTPIPV4ADDRESS_H + +#define RTPIPV4ADDRESS_H + +#include "rtpconfig.h" +#include "rtpaddress.h" +#include "rtptypes.h" + +class RTPMemoryManager; + +/** Represents an IPv4 IP address and port. + * This class is used by the UDP over IPv4 transmission component. + * When an RTPIPv4Address is used in one of the multicast functions of the transmitter, the port + * number is ignored. When an instance is used in one of the accept or ignore functions of the + * transmitter, a zero port number represents all ports for the specified IP address. + */ +class RTPIPv4Address : public RTPAddress +{ +public: + /** Creates an instance with IP address \c ip and port number \c port (both are interpreted in host byte order). */ + RTPIPv4Address(uint32_t ip = 0, uint16_t port = 0):RTPAddress(IPv4Address) { RTPIPv4Address::ip = ip; RTPIPv4Address::port = port; } + + /** Creates an instance with IP address \c ip and port number \c port (\c port is interpreted in host byte order). */ + RTPIPv4Address(const uint8_t ip[4],uint16_t port = 0):RTPAddress(IPv4Address) { RTPIPv4Address::ip = (uint32_t)ip[3]; RTPIPv4Address::ip |= (((uint32_t)ip[2])<<8); RTPIPv4Address::ip |= (((uint32_t)ip[1])<<16); RTPIPv4Address::ip |= (((uint32_t)ip[0])<<24); RTPIPv4Address::port = port; } + ~RTPIPv4Address() { } + + /** Sets the IP address for this instance to \c ip which is assumed to be in host byte order. */ + void SetIP(uint32_t ip) { RTPIPv4Address::ip = ip; } + + /** Sets the IP address of this instance to \c ip. */ + void SetIP(const uint8_t ip[4]) { RTPIPv4Address::ip = (uint32_t)ip[3]; RTPIPv4Address::ip |= (((uint32_t)ip[2])<<8); RTPIPv4Address::ip |= (((uint32_t)ip[1])<<16); RTPIPv4Address::ip |= (((uint32_t)ip[0])<<24); } + + /** Sets the port number for this instance to \c port which is interpreted in host byte order. */ + void SetPort(uint16_t port) { RTPIPv4Address::port = port; } + + /** Returns the IP address contained in this instance in host byte order. */ + uint32_t GetIP() const { return ip; } + + /** Returns the port number of this instance in host byte order. */ + uint16_t GetPort() const { return port; } + + RTPAddress *CreateCopy(RTPMemoryManager *mgr) const; + bool IsSameAddress(const RTPAddress *addr) const; + bool IsFromSameHost(const RTPAddress *addr) const; +#ifdef RTPDEBUG + std::string GetAddressString() const; +#endif // RTPDEBUG +private: + uint32_t ip; + uint16_t port; +}; + +#endif // RTPIPV4ADDRESS_H + diff --git a/src/rtpipv4destination.h b/src/rtpipv4destination.h new file mode 100644 index 0000000..a31243a --- /dev/null +++ b/src/rtpipv4destination.h @@ -0,0 +1,108 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpipv4destination.h + */ + +#ifndef RTPIPV4DESTINATION_H + +#define RTPIPV4DESTINATION_H + +#include "rtpconfig.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> + #include <arpa/inet.h> + #include <sys/socket.h> +#endif // WIN32 +#ifdef RTPDEBUG + #include "rtpdefines.h" + #include <stdio.h> + #include <string> +#endif // RTPDEBUG +#include <string.h> + +class RTPIPv4Destination +{ +public: + RTPIPv4Destination(uint32_t ip,uint16_t rtpportbase) + { + memset(&rtpaddr,0,sizeof(struct sockaddr_in)); + memset(&rtcpaddr,0,sizeof(struct sockaddr_in)); + + rtpaddr.sin_family = AF_INET; + rtpaddr.sin_port = htons(rtpportbase); + rtpaddr.sin_addr.s_addr = htonl(ip); + + rtcpaddr.sin_family = AF_INET; + rtcpaddr.sin_port = htons(rtpportbase+1); + rtcpaddr.sin_addr.s_addr = htonl(ip); + + RTPIPv4Destination::ip = ip; + } + + bool operator==(const RTPIPv4Destination &src) const + { + if (rtpaddr.sin_addr.s_addr == src.rtpaddr.sin_addr.s_addr && rtpaddr.sin_port == src.rtpaddr.sin_port) + return true; + return false; + } + uint32_t GetIP() const { return ip; } + // nbo = network byte order + uint32_t GetIP_NBO() const { return rtpaddr.sin_addr.s_addr; } + uint16_t GetRTPPort_NBO() const { return rtpaddr.sin_port; } + uint16_t GetRTCPPort_NBO() const { return rtcpaddr.sin_port; } + const struct sockaddr_in *GetRTPSockAddr() const { return &rtpaddr; } + const struct sockaddr_in *GetRTCPSockAddr() const { return &rtcpaddr; } +#ifdef RTPDEBUG + std::string GetDestinationString() const; +#endif // RTPDEBUG +private: + uint32_t ip; + struct sockaddr_in rtpaddr; + struct sockaddr_in rtcpaddr; +}; + +#ifdef RTPDEBUG +inline std::string RTPIPv4Destination::GetDestinationString() const +{ + char str[24]; + uint32_t ip = ipaddr_hbo; + uint16_t portbase = ntohs(rtpport_nbo); + + RTP_SNPRINTF(str,24,"%d.%d.%d.%d:%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF),(int)(portbase)); + return std::string(str); +} +#endif // RTPDEBUG + +#endif // RTPIPV4DESTINATION_H + diff --git a/src/rtpipv6address.cpp b/src/rtpipv6address.cpp new file mode 100644 index 0000000..a2a685b --- /dev/null +++ b/src/rtpipv6address.cpp @@ -0,0 +1,108 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpipv6address.h" +#include "rtpmemorymanager.h" + +#ifdef RTP_SUPPORT_IPV6 + +#ifdef RTPDEBUG + #include "rtpdefines.h" + #include <stdio.h> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTPAddress *RTPIPv6Address::CreateCopy(RTPMemoryManager *mgr) const +{ + RTPIPv6Address *newaddr = RTPNew(mgr,RTPMEM_TYPE_CLASS_RTPADDRESS) RTPIPv6Address(ip,port); + return newaddr; +} + +bool RTPIPv6Address::IsSameAddress(const RTPAddress *addr) const +{ + if (addr == 0) + return false; + if (addr->GetAddressType() != RTPAddress::IPv6Address) + return false; + + const RTPIPv6Address *addr2 = (const RTPIPv6Address *)addr; + const uint8_t *ip2 = addr2->ip.s6_addr; + + if (port != addr2->port) + return false; + + for (int i = 0 ; i < 16 ; i++) + { + if (ip.s6_addr[i] != ip2[i]) + return false; + } + return true; +} + +bool RTPIPv6Address::IsFromSameHost(const RTPAddress *addr) const +{ + if (addr == 0) + return false; + if (addr->GetAddressType() != RTPAddress::IPv6Address) + return false; + + const RTPIPv6Address *addr2 = (const RTPIPv6Address *)addr; + const uint8_t *ip2 = addr2->ip.s6_addr; + for (int i = 0 ; i < 16 ; i++) + { + if (ip.s6_addr[i] != ip2[i]) + return false; + } + return true; +} + +#ifdef RTPDEBUG +std::string RTPIPv6Address::GetAddressString() const +{ + char str[48]; + uint16_t ip16[8]; + int i,j; + + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) + { + ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); + ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); + } + + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X/%d",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7],(int)port); + return std::string(str); +} +#endif // RTPDEBUG + +#endif // RTP_SUPPORT_IPV6 + diff --git a/src/rtpipv6address.h b/src/rtpipv6address.h new file mode 100644 index 0000000..ef434c9 --- /dev/null +++ b/src/rtpipv6address.h @@ -0,0 +1,105 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpipv6address.h + */ + +#ifndef RTPIPV6ADDRESS_H + +#define RTPIPV6ADDRESS_H + +#include "rtpconfig.h" + +#ifdef RTP_SUPPORT_IPV6 + +#include "rtpaddress.h" +#include "rtptypes.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +/** Represents an IPv6 IP address and port. + * This class is used by the UDP over IPv4 transmission component. + * When an RTPIPv6Address is used in one of the multicast functions of the + * transmitter, the port number is ignored. When an instance is used in one of + * the accept or ignore functions of the transmitter, a zero port number represents + * all ports for the specified IP address. + */ +class RTPIPv6Address : public RTPAddress +{ +public: + /** Creates an instance with IP address and port number set to zero. */ + RTPIPv6Address():RTPAddress(IPv6Address) { for (int i = 0 ; i < 16 ; i++) ip.s6_addr[i] = 0; port = 0; } + + /** Creates an instance with IP address \c ip and port number \c port (the port number is assumed to be in + * host byte order). */ + RTPIPv6Address(const uint8_t ip[16],uint16_t port = 0):RTPAddress(IPv6Address) { SetIP(ip); RTPIPv6Address::port = port; } + + /** Creates an instance with IP address \c ip and port number \c port (the port number is assumed to be in + * host byte order). */ + RTPIPv6Address(in6_addr ip,uint16_t port = 0):RTPAddress(IPv6Address) { RTPIPv6Address::ip = ip; RTPIPv6Address::port = port; } + ~RTPIPv6Address() { } + + /** Sets the IP address for this instance to \c ip. */ + void SetIP(in6_addr ip) { RTPIPv6Address::ip = ip; } + + /** Sets the IP address for this instance to \c ip. */ + void SetIP(const uint8_t ip[16]) { for (int i = 0 ; i < 16 ; i++) RTPIPv6Address::ip.s6_addr[i] = ip[i]; } + + /** Sets the port number for this instance to \c port, which is interpreted in host byte order. */ + void SetPort(uint16_t port) { RTPIPv6Address::port = port; } + + /** Copies the IP address of this instance in \c ip. */ + void GetIP(uint8_t ip[16]) const { for (int i = 0 ; i < 16 ; i++) ip[i] = RTPIPv6Address::ip.s6_addr[i]; } + + /** Returns the IP address of this instance. */ + in6_addr GetIP() const { return ip; } + + /** Returns the port number contained in this instance in host byte order. */ + uint16_t GetPort() const { return port; } + + RTPAddress *CreateCopy(RTPMemoryManager *mgr) const; + bool IsSameAddress(const RTPAddress *addr) const; + bool IsFromSameHost(const RTPAddress *addr) const; +#ifdef RTPDEBUG + std::string GetAddressString() const; +#endif // RTPDEBUG +private: + in6_addr ip; + uint16_t port; +}; + +#endif // RTP_SUPPORT_IPV6 + +#endif // RTPIPV6ADDRESS_H + diff --git a/src/rtpipv6destination.h b/src/rtpipv6destination.h new file mode 100644 index 0000000..4716b08 --- /dev/null +++ b/src/rtpipv6destination.h @@ -0,0 +1,105 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpipv6destination.h + */ + +#ifndef RTPIPV6DESTINATION_H + +#define RTPIPV6DESTINATION_H + +#include "rtpconfig.h" + +#ifdef RTP_SUPPORT_IPV6 + +#include "rtptypes.h" +#include <string.h> +#ifndef WIN32 + #include <netinet/in.h> + #include <arpa/inet.h> + #include <sys/socket.h> +#endif // WIN32 +#ifdef RTPDEBUG + #include "rtpdefines.h" + #include <stdio.h> + #include <string> +#endif // RTPDEBUG + +class RTPIPv6Destination +{ +public: + RTPIPv6Destination(in6_addr ip,uint16_t portbase) + { + memset(&rtpaddr,0,sizeof(struct sockaddr_in6)); + memset(&rtcpaddr,0,sizeof(struct sockaddr_in6)); + rtpaddr.sin6_family = AF_INET6; + rtpaddr.sin6_port = htons(portbase); + rtpaddr.sin6_addr = ip; + rtcpaddr.sin6_family = AF_INET6; + rtcpaddr.sin6_port = htons(portbase+1); + rtcpaddr.sin6_addr = ip; + } + in6_addr GetIP() const { return rtpaddr.sin6_addr; } + bool operator==(const RTPIPv6Destination &src) const + { + if (rtpaddr.sin6_port == src.rtpaddr.sin6_port && (memcmp(&(src.rtpaddr.sin6_addr),&(rtpaddr.sin6_addr),sizeof(in6_addr)) == 0)) + return true; + return false; + } + const struct sockaddr_in6 *GetRTPSockAddr() const { return &rtpaddr; } + const struct sockaddr_in6 *GetRTCPSockAddr() const { return &rtcpaddr; } +#ifdef RTPDEBUG + std::string GetDestinationString() const; +#endif // RTPDEBUG +private: + struct sockaddr_in6 rtpaddr; + struct sockaddr_in6 rtcpaddr; +}; + +#ifdef RTPDEBUG +inline std::string RTPIPv6Destination::GetDestinationString() const +{ + uint16_t ip16[8]; + char str[48]; + uint16_t portbase = ntohs(rtpport_nbo); + int i,j; + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) { ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); } + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X/%d",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7],(int)portbase); + return std::string(str); +} +#endif // RTPDEBUG + +#endif // RTP_SUPPORT_IPV6 + +#endif // RTPIPV6DESTINATION_H + diff --git a/src/rtpkeyhashtable.h b/src/rtpkeyhashtable.h new file mode 100644 index 0000000..2ea138f --- /dev/null +++ b/src/rtpkeyhashtable.h @@ -0,0 +1,339 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpkeyhashtable.h + */ + +#ifndef RTPKEYHASHTABLE_H + +#define RTPKEYHASHTABLE_H + +#include "rtpconfig.h" +#include "rtperrors.h" +#include "rtpmemoryobject.h" + +#ifdef RTPDEBUG +#include <iostream> +#endif // RTPDEBUG + +template<class Key,class Element,class GetIndex,int hashsize> +class RTPKeyHashTable : public RTPMemoryObject +{ +public: + RTPKeyHashTable(RTPMemoryManager *mgr = 0,int memtype = RTPMEM_TYPE_OTHER); + ~RTPKeyHashTable() { Clear(); } + + void GotoFirstElement() { curhashelem = firsthashelem; } + void GotoLastElement() { curhashelem = lasthashelem; } + bool HasCurrentElement() { return (curhashelem == 0)?false:true; } + int DeleteCurrentElement(); + Element &GetCurrentElement() { return curhashelem->GetElement(); } + Key &GetCurrentKey() { return curhashelem->GetKey(); } + int GotoElement(const Key &k); + bool HasElement(const Key &k); + void GotoNextElement(); + void GotoPreviousElement(); + void Clear(); + + int AddElement(const Key &k,const Element &elem); + int DeleteElement(const Key &k); + +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + class HashElement + { + public: + HashElement(const Key &k,const Element &e,int index):key(k),element(e) { hashprev = 0; hashnext = 0; listnext = 0; listprev = 0; hashindex = index; } + int GetHashIndex() { return hashindex; } + Key &GetKey() { return key; } + Element &GetElement() { return element; } +#ifdef RTPDEBUG + void Dump() { std::cout << "\tHash index " << hashindex << " | Key " << key << " | Element " << element << std::endl; } +#endif // RTPDEBUG + private: + int hashindex; + Key key; + Element element; + public: + HashElement *hashprev,*hashnext; + HashElement *listprev,*listnext; + }; + + HashElement *table[hashsize]; + HashElement *firsthashelem,*lasthashelem; + HashElement *curhashelem; +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + int memorytype; +#endif // RTP_SUPPORT_MEMORYMANAGEMENT +}; + +template<class Key,class Element,class GetIndex,int hashsize> +inline RTPKeyHashTable<Key,Element,GetIndex,hashsize>::RTPKeyHashTable(RTPMemoryManager *mgr,int memtype) : RTPMemoryObject(mgr) +{ + for (int i = 0 ; i < hashsize ; i++) + table[i] = 0; + firsthashelem = 0; + lasthashelem = 0; +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + memorytype = memtype; +#endif // RTP_SUPPORT_MEMORYMANAGEMENT +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline int RTPKeyHashTable<Key,Element,GetIndex,hashsize>::DeleteCurrentElement() +{ + if (curhashelem) + { + HashElement *tmp1,*tmp2; + int index; + + // First, relink elements in current hash bucket + + index = curhashelem->GetHashIndex(); + tmp1 = curhashelem->hashprev; + tmp2 = curhashelem->hashnext; + if (tmp1 == 0) // no previous element in hash bucket + { + table[index] = tmp2; + if (tmp2 != 0) + tmp2->hashprev = 0; + } + else // there is a previous element in the hash bucket + { + tmp1->hashnext = tmp2; + if (tmp2 != 0) + tmp2->hashprev = tmp1; + } + + // Relink elements in list + + tmp1 = curhashelem->listprev; + tmp2 = curhashelem->listnext; + if (tmp1 == 0) // curhashelem is first in list + { + firsthashelem = tmp2; + if (tmp2 != 0) + tmp2->listprev = 0; + else // curhashelem is also last in list + lasthashelem = 0; + } + else + { + tmp1->listnext = tmp2; + if (tmp2 != 0) + tmp2->listprev = tmp1; + else // curhashelem is last in list + lasthashelem = tmp1; + } + + // finally, with everything being relinked, we can delete curhashelem + RTPDelete(curhashelem,GetMemoryManager()); + curhashelem = tmp2; // Set to next element in list + } + else + return ERR_RTP_KEYHASHTABLE_NOCURRENTELEMENT; + return 0; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline int RTPKeyHashTable<Key,Element,GetIndex,hashsize>::GotoElement(const Key &k) +{ + int index; + bool found; + + index = GetIndex::GetIndex(k); + if (index >= hashsize) + return ERR_RTP_KEYHASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX; + + curhashelem = table[index]; + found = false; + while(!found && curhashelem != 0) + { + if (curhashelem->GetKey() == k) + found = true; + else + curhashelem = curhashelem->hashnext; + } + if (!found) + return ERR_RTP_KEYHASHTABLE_KEYNOTFOUND; + return 0; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline bool RTPKeyHashTable<Key,Element,GetIndex,hashsize>::HasElement(const Key &k) +{ + int index; + bool found; + HashElement *tmp; + + index = GetIndex::GetIndex(k); + if (index >= hashsize) + return false; + + tmp = table[index]; + found = false; + while(!found && tmp != 0) + { + if (tmp->GetKey() == k) + found = true; + else + tmp = tmp->hashnext; + } + return found; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline void RTPKeyHashTable<Key,Element,GetIndex,hashsize>::GotoNextElement() +{ + if (curhashelem) + curhashelem = curhashelem->listnext; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline void RTPKeyHashTable<Key,Element,GetIndex,hashsize>::GotoPreviousElement() +{ + if (curhashelem) + curhashelem = curhashelem->listprev; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline void RTPKeyHashTable<Key,Element,GetIndex,hashsize>::Clear() +{ + HashElement *tmp1,*tmp2; + + for (int i = 0 ; i < hashsize ; i++) + table[i] = 0; + + tmp1 = firsthashelem; + while (tmp1 != 0) + { + tmp2 = tmp1->listnext; + RTPDelete(tmp1,GetMemoryManager()); + tmp1 = tmp2; + } + firsthashelem = 0; + lasthashelem = 0; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline int RTPKeyHashTable<Key,Element,GetIndex,hashsize>::AddElement(const Key &k,const Element &elem) +{ + int index; + bool found; + HashElement *e,*newelem; + + index = GetIndex::GetIndex(k); + if (index >= hashsize) + return ERR_RTP_KEYHASHTABLE_FUNCTIONRETURNEDINVALIDHASHINDEX; + + e = table[index]; + found = false; + while(!found && e != 0) + { + if (e->GetKey() == k) + found = true; + else + e = e->hashnext; + } + if (found) + return ERR_RTP_KEYHASHTABLE_KEYALREADYEXISTS; + + // Okay, the key doesn't exist, so we can add the new element in the hash table + + newelem = RTPNew(GetMemoryManager(),memorytype) HashElement(k,elem,index); + if (newelem == 0) + return ERR_RTP_OUTOFMEM; + + e = table[index]; + table[index] = newelem; + newelem->hashnext = e; + if (e != 0) + e->hashprev = newelem; + + // Now, we still got to add it to the linked list + + if (firsthashelem == 0) + { + firsthashelem = newelem; + lasthashelem = newelem; + } + else // there already are some elements in the list + { + lasthashelem->listnext = newelem; + newelem->listprev = lasthashelem; + lasthashelem = newelem; + } + return 0; +} + +template<class Key,class Element,class GetIndex,int hashsize> +inline int RTPKeyHashTable<Key,Element,GetIndex,hashsize>::DeleteElement(const Key &k) +{ + int status; + + status = GotoElement(k); + if (status < 0) + return status; + return DeleteCurrentElement(); +} + +#ifdef RTPDEBUG +template<class Key,class Element,class GetIndex,int hashsize> +inline void RTPKeyHashTable<Key,Element,GetIndex,hashsize>::Dump() +{ + HashElement *e; + + std::cout << "DUMPING TABLE CONTENTS:" << std::endl; + for (int i = 0 ; i < hashsize ; i++) + { + e = table[i]; + while (e != 0) + { + e->Dump(); + e = e->hashnext; + } + } + + std::cout << "DUMPING LIST CONTENTS:" << std::endl; + e = firsthashelem; + while (e != 0) + { + e->Dump(); + e = e->listnext; + } +} +#endif // RTPDEBUG + +#endif // RTPKEYHASHTABLE_H diff --git a/src/rtplibraryversion.cpp b/src/rtplibraryversion.cpp new file mode 100644 index 0000000..a1b15d3 --- /dev/null +++ b/src/rtplibraryversion.cpp @@ -0,0 +1,50 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtplibraryversion.h" +#include "rtpdefines.h" + +RTPLibraryVersion RTPLibraryVersion::GetVersion() +{ + return RTPLibraryVersion(3,7,1); +} + +std::string RTPLibraryVersion::GetVersionString() const +{ + char str[16]; + + RTP_SNPRINTF(str,16,"%d.%d.%d",majornr,minornr,debugnr); + + return std::string(str); +} + + diff --git a/src/rtplibraryversion.h b/src/rtplibraryversion.h new file mode 100644 index 0000000..927bcf8 --- /dev/null +++ b/src/rtplibraryversion.h @@ -0,0 +1,71 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtplibraryversion.h + */ + +#ifndef RTPLIBRARYVERSION_H + +#define RTPLIBRARYVERSION_H + +#include <string> +#include <stdio.h> + +/** + * Used to provide information about the version of the library. + */ +class RTPLibraryVersion +{ +public: + /** Returns an instance of RTPLibraryVersion describing the version of the library. */ + static RTPLibraryVersion GetVersion(); +private: + RTPLibraryVersion(int major,int minor,int debug) { majornr = major; minornr = minor; debugnr = debug; } +public: + /** Returns the major version number. */ + int GetMajorNumber() const { return majornr; } + + /** Returns the minor version number. */ + int GetMinorNumber() const { return minornr; } + + /** Returns the debug version number. */ + int GetDebugNumber() const { return debugnr; } + + /** Returns a string describing the library version. */ + std::string GetVersionString() const; +private: + int debugnr,minornr,majornr; +}; + +#endif // RTPLIBRARYVERSION_H + diff --git a/src/rtpmemorymanager.h b/src/rtpmemorymanager.h new file mode 100644 index 0000000..bfc50fa --- /dev/null +++ b/src/rtpmemorymanager.h @@ -0,0 +1,247 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpmemorymanager.h + */ + +#ifndef RTPMEMORYMANAGER_H + +#define RTPMEMORYMANAGER_H + +#include "rtpconfig.h" +#include "rtptypes.h" + +/** Used to indicate a general kind of memory block. */ +#define RTPMEM_TYPE_OTHER 0 + +/** Buffer to store an incoming RTP packet. */ +#define RTPMEM_TYPE_BUFFER_RECEIVEDRTPPACKET 1 + +/** Buffer to store an incoming RTCP packet. */ +#define RTPMEM_TYPE_BUFFER_RECEIVEDRTCPPACKET 2 + +/** Buffer to store an RTCP APP packet. */ +#define RTPMEM_TYPE_BUFFER_RTCPAPPPACKET 3 + +/** Buffer to store an RTCP BYE packet. */ +#define RTPMEM_TYPE_BUFFER_RTCPBYEPACKET 4 + +/** Buffer to store a BYE reason. */ +#define RTPMEM_TYPE_BUFFER_RTCPBYEREASON 5 + +/** Buffer to store an RTCP compound packet. */ +#define RTPMEM_TYPE_BUFFER_RTCPCOMPOUNDPACKET 6 + +/** Buffer to store an SDES block. */ +#define RTPMEM_TYPE_BUFFER_RTCPSDESBLOCK 7 + +/** Buffer to store an RTP packet. */ +#define RTPMEM_TYPE_BUFFER_RTPPACKET 8 + +/** Buffer used by an RTPPacketBuilder instance. */ +#define RTPMEM_TYPE_BUFFER_RTPPACKETBUILDERBUFFER 9 + +/** Buffer to store an SDES item. */ +#define RTPMEM_TYPE_BUFFER_SDESITEM 10 + +/** Hash element used in the accept/ignore table. */ +#define RTPMEM_TYPE_CLASS_ACCEPTIGNOREHASHELEMENT 11 + +/** Buffer to store a PortInfo instance, used by the UDP over IPv4 and IPv6 transmitters. */ +#define RTPMEM_TYPE_CLASS_ACCEPTIGNOREPORTINFO 12 + +/** Buffer to store a HashElement instance for the destination hash table. */ +#define RTPMEM_TYPE_CLASS_DESTINATIONLISTHASHELEMENT 13 + +/** Buffer to store a HashElement instance for the multicast hash table. */ +#define RTPMEM_TYPE_CLASS_MULTICASTHASHELEMENT 14 + +/** Buffer to store an instance of RTCPAPPPacket. */ +#define RTPMEM_TYPE_CLASS_RTCPAPPPACKET 15 + +/** Buffer to store an instance of RTCPBYEPacket. */ +#define RTPMEM_TYPE_CLASS_RTCPBYEPACKET 16 + +/** Buffer to store an instance of RTCPCompoundPacketBuilder. */ +#define RTPMEM_TYPE_CLASS_RTCPCOMPOUNDPACKETBUILDER 17 + +/** Buffer to store an RTCPReceiverReport instance. */ +#define RTPMEM_TYPE_CLASS_RTCPRECEIVERREPORT 18 + +/** Buffer to store an instance of RTCPRRPacket. */ +#define RTPMEM_TYPE_CLASS_RTCPRRPACKET 19 + +/** Buffer to store an instance of RTCPSDESPacket. */ +#define RTPMEM_TYPE_CLASS_RTCPSDESPACKET 20 + +/** Buffer to store an instance of RTCPSRPacket. */ +#define RTPMEM_TYPE_CLASS_RTCPSRPACKET 21 + +/** Buffer to store an instance of RTCPUnknownPacket. */ +#define RTPMEM_TYPE_CLASS_RTCPUNKNOWNPACKET 22 + +/** Buffer to store an instance of an RTPAddress derived class. */ +#define RTPMEM_TYPE_CLASS_RTPADDRESS 23 + +/** Buffer to store an instance of RTPInternalSourceData. */ +#define RTPMEM_TYPE_CLASS_RTPINTERNALSOURCEDATA 24 + +/** Buffer to store an RTPPacket instance. */ +#define RTPMEM_TYPE_CLASS_RTPPACKET 25 + +/** Buffer to store an RTPPollThread instance. */ +#define RTPMEM_TYPE_CLASS_RTPPOLLTHREAD 26 + +/** Buffer to store an RTPRawPacket instance. */ +#define RTPMEM_TYPE_CLASS_RTPRAWPACKET 27 + +/** Buffer to store an RTPTransmissionInfo derived class. */ +#define RTPMEM_TYPE_CLASS_RTPTRANSMISSIONINFO 28 + +/** Buffer to store an RTPTransmitter derived class. */ +#define RTPMEM_TYPE_CLASS_RTPTRANSMITTER 29 + +/** Buffer to store an SDESPrivateItem instance. */ +#define RTPMEM_TYPE_CLASS_SDESPRIVATEITEM 30 + +/** Buffer to store an SDESSource instance. */ +#define RTPMEM_TYPE_CLASS_SDESSOURCE 31 + +/** Buffer to store a HashElement instance for the source table. */ +#define RTPMEM_TYPE_CLASS_SOURCETABLEHASHELEMENT 32 + +/** A memory manager. */ +class RTPMemoryManager +{ +public: + RTPMemoryManager() { } + virtual ~RTPMemoryManager() { } + + /** Called to allocate \c numbytes of memory. + * Called to allocate \c numbytes of memory. The \c memtype parameter + * indicates what the purpose of the memory block is. Relevant values + * can be found in rtpmemorymanager.h . Note that the types starting with + * \c RTPMEM_TYPE_CLASS indicate fixed size buffers and that types starting + * with \c RTPMEM_TYPE_BUFFER indicate variable size buffers. + */ + virtual void *AllocateBuffer(size_t numbytes, int memtype) = 0; + + /** Frees the previously allocated memory block \c buffer */ + virtual void FreeBuffer(void *buffer) = 0; +}; + +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + +#include <new> + +inline void *operator new(size_t numbytes, RTPMemoryManager *mgr, int memtype) +{ + if (mgr == 0) + return operator new(numbytes); + return mgr->AllocateBuffer(numbytes,memtype); +} + +inline void operator delete(void *buffer, RTPMemoryManager *mgr, int memtype) +{ + if (mgr == 0) + operator delete(buffer); + else + mgr->FreeBuffer(buffer); +} + +#if defined(WIN32) || defined(_WIN32_WCE) +#if _MSC_VER >= 1300 +inline void *operator new[](size_t numbytes, RTPMemoryManager *mgr, int memtype) +{ + if (mgr == 0) + return operator new[](numbytes); + return mgr->AllocateBuffer(numbytes,memtype); +} + +inline void operator delete[](void *buffer, RTPMemoryManager *mgr, int memtype) +{ + if (mgr == 0) + operator delete[](buffer); + else + mgr->FreeBuffer(buffer); +} +#endif // _MSC_VER >= 1300 +#else +inline void *operator new[](size_t numbytes, RTPMemoryManager *mgr, int memtype) +{ + if (mgr == 0) + return operator new[](numbytes); + return mgr->AllocateBuffer(numbytes,memtype); +} + +inline void operator delete[](void *buffer, RTPMemoryManager *mgr, int memtype) +{ + if (mgr == 0) + operator delete[](buffer); + else + mgr->FreeBuffer(buffer); +} +#endif // WIN32 || _WIN32_WCE + +inline void RTPDeleteByteArray(uint8_t *buf, RTPMemoryManager *mgr) +{ + if (mgr == 0) + delete [] buf; + else + mgr->FreeBuffer(buf); +} + +template<class ClassName> +inline void RTPDelete(ClassName *obj, RTPMemoryManager *mgr) +{ + if (mgr == 0) + delete obj; + else + { + obj->~ClassName(); + mgr->FreeBuffer(obj); + } +} + +#define RTPNew(a,b) new(a,b) + +#else + +#define RTPNew(a,b) new +#define RTPDelete(a,b) delete a +#define RTPDeleteByteArray(a,b) delete [] a; + +#endif // RTP_SUPPORT_MEMORYMANAGEMENT + +#endif // RTPMEMORYMANAGER_H + diff --git a/src/rtpmemoryobject.h b/src/rtpmemoryobject.h new file mode 100644 index 0000000..c30e5bd --- /dev/null +++ b/src/rtpmemoryobject.h @@ -0,0 +1,69 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpmemoryobject.h + */ + +#ifndef RTPMEMORYOBJECT_H + +#define RTPMEMORYOBJECT_H + +#include "rtpconfig.h" +#include "rtpmemorymanager.h" + +class RTPMemoryObject +{ +protected: +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + RTPMemoryObject(RTPMemoryManager *memmgr) : mgr(memmgr) { } +#else + RTPMemoryObject(RTPMemoryManager *memmgr) { } +#endif // RTP_SUPPORT_MEMORYMANAGEMENT + virtual ~RTPMemoryObject() { } + +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT + RTPMemoryManager *GetMemoryManager() const { return mgr; } + void SetMemoryManager(RTPMemoryManager *m) { mgr = m; } +#else + RTPMemoryManager *GetMemoryManager() const { return 0; } + void SetMemoryManager(RTPMemoryManager *m) { } +#endif // RTP_SUPPORT_MEMORYMANAGEMENT + +#ifdef RTP_SUPPORT_MEMORYMANAGEMENT +private: + RTPMemoryManager *mgr; +#endif // RTP_SUPPORT_MEMORYMANAGEMENT +}; + +#endif // RTPMEMORYOBJECT_H + diff --git a/src/rtppacket.cpp b/src/rtppacket.cpp new file mode 100644 index 0000000..b6d5fda --- /dev/null +++ b/src/rtppacket.cpp @@ -0,0 +1,344 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtppacket.h" +#include "rtpstructs.h" +#include "rtpdefines.h" +#include "rtperrors.h" +#include "rtprawpacket.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +#ifdef RTPDEBUG + #include <stdio.h> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +void RTPPacket::Clear() +{ + hasextension = false; + hasmarker = false; + numcsrcs = 0; + payloadtype = 0; + extseqnr = 0; + timestamp = 0; + ssrc = 0; + packet = 0; + payload = 0; + packetlength = 0; + payloadlength = 0; + extid = 0; + extension = 0; + extensionlength = 0; + error = 0; + externalbuffer = false; +} + +RTPPacket::RTPPacket(RTPRawPacket &rawpack,RTPMemoryManager *mgr) : RTPMemoryObject(mgr),receivetime(rawpack.GetReceiveTime()) +{ + Clear(); + error = ParseRawPacket(rawpack); +} + +RTPPacket::RTPPacket(uint8_t payloadtype,const void *payloaddata,size_t payloadlen,uint16_t seqnr, + uint32_t timestamp,uint32_t ssrc,bool gotmarker,uint8_t numcsrcs,const uint32_t *csrcs, + bool gotextension,uint16_t extensionid,uint16_t extensionlen_numwords,const void *extensiondata, + size_t maxpacksize, RTPMemoryManager *mgr) : RTPMemoryObject(mgr),receivetime(0,0) +{ + Clear(); + error = BuildPacket(payloadtype,payloaddata,payloadlen,seqnr,timestamp,ssrc,gotmarker,numcsrcs, + csrcs,gotextension,extensionid,extensionlen_numwords,extensiondata,0,maxpacksize); +} + +RTPPacket::RTPPacket(uint8_t payloadtype,const void *payloaddata,size_t payloadlen,uint16_t seqnr, + uint32_t timestamp,uint32_t ssrc,bool gotmarker,uint8_t numcsrcs,const uint32_t *csrcs, + bool gotextension,uint16_t extensionid,uint16_t extensionlen_numwords,const void *extensiondata, + void *buffer,size_t buffersize, RTPMemoryManager *mgr) : RTPMemoryObject(mgr),receivetime(0,0) +{ + Clear(); + if (buffer == 0) + error = ERR_RTP_PACKET_EXTERNALBUFFERNULL; + else if (buffersize <= 0) + error = ERR_RTP_PACKET_ILLEGALBUFFERSIZE; + else + error = BuildPacket(payloadtype,payloaddata,payloadlen,seqnr,timestamp,ssrc,gotmarker,numcsrcs, + csrcs,gotextension,extensionid,extensionlen_numwords,extensiondata,buffer,buffersize); +} + +int RTPPacket::ParseRawPacket(RTPRawPacket &rawpack) +{ + uint8_t *packetbytes; + size_t packetlen; + uint8_t payloadtype; + RTPHeader *rtpheader; + bool marker; + int csrccount; + bool hasextension; + int payloadoffset,payloadlength; + int numpadbytes; + RTPExtensionHeader *rtpextheader; + uint16_t exthdrlen; + + if (!rawpack.IsRTP()) // If we didn't receive it on the RTP port, we'll ignore it + return ERR_RTP_PACKET_INVALIDPACKET; + + // The length should be at least the size of the RTP header + packetlen = rawpack.GetDataLength(); + if (packetlen < sizeof(RTPHeader)) + return ERR_RTP_PACKET_INVALIDPACKET; + + packetbytes = (uint8_t *)rawpack.GetData(); + rtpheader = (RTPHeader *)packetbytes; + + // The version number should be correct + if (rtpheader->version != RTP_VERSION) + return ERR_RTP_PACKET_INVALIDPACKET; + + // We'll check if this is possibly a RTCP packet. For this to be possible + // the marker bit and payload type combined should be either an SR or RR + // identifier + marker = (rtpheader->marker == 0)?false:true; + payloadtype = rtpheader->payloadtype; + if (marker) + { + if (payloadtype == (RTP_RTCPTYPE_SR & 127)) // don't check high bit (this was the marker!!) + return ERR_RTP_PACKET_INVALIDPACKET; + if (payloadtype == (RTP_RTCPTYPE_RR & 127)) + return ERR_RTP_PACKET_INVALIDPACKET; + } + + csrccount = rtpheader->csrccount; + payloadoffset = sizeof(RTPHeader)+(int)(csrccount*sizeof(uint32_t)); + + if (rtpheader->padding) // adjust payload length to take padding into account + { + numpadbytes = (int)packetbytes[packetlen-1]; // last byte contains number of padding bytes + if (numpadbytes <= 0) + return ERR_RTP_PACKET_INVALIDPACKET; + } + else + numpadbytes = 0; + + hasextension = (rtpheader->extension == 0)?false:true; + if (hasextension) // got header extension + { + rtpextheader = (RTPExtensionHeader *)(packetbytes+payloadoffset); + payloadoffset += sizeof(RTPExtensionHeader); + exthdrlen = ntohs(rtpextheader->length); + payloadoffset += ((int)exthdrlen)*sizeof(uint32_t); + } + else + { + rtpextheader = 0; + exthdrlen = 0; + } + + payloadlength = packetlen-numpadbytes-payloadoffset; + if (payloadlength < 0) + return ERR_RTP_PACKET_INVALIDPACKET; + + // Now, we've got a valid packet, so we can create a new instance of RTPPacket + // and fill in the members + + RTPPacket::hasextension = hasextension; + if (hasextension) + { + RTPPacket::extid = ntohs(rtpextheader->extid); + RTPPacket::extensionlength = ((int)ntohs(rtpextheader->length))*sizeof(uint32_t); + RTPPacket::extension = ((uint8_t *)rtpextheader)+sizeof(RTPExtensionHeader); + } + + RTPPacket::hasmarker = marker; + RTPPacket::numcsrcs = csrccount; + RTPPacket::payloadtype = payloadtype; + + // Note: we don't fill in the EXTENDED sequence number here, since we + // don't have information about the source here. We just fill in the low + // 16 bits + RTPPacket::extseqnr = (uint32_t)ntohs(rtpheader->sequencenumber); + + RTPPacket::timestamp = ntohl(rtpheader->timestamp); + RTPPacket::ssrc = ntohl(rtpheader->ssrc); + RTPPacket::packet = packetbytes; + RTPPacket::payload = packetbytes+payloadoffset; + RTPPacket::packetlength = packetlen; + RTPPacket::payloadlength = payloadlength; + + // We'll zero the data of the raw packet, since we're using it here now! + rawpack.ZeroData(); + + return 0; +} + +uint32_t RTPPacket::GetCSRC(int num) const +{ + if (num >= numcsrcs) + return 0; + + uint8_t *csrcpos; + uint32_t *csrcval_nbo; + uint32_t csrcval_hbo; + + csrcpos = packet+sizeof(RTPHeader)+num*sizeof(uint32_t); + csrcval_nbo = (uint32_t *)csrcpos; + csrcval_hbo = ntohl(*csrcval_nbo); + return csrcval_hbo; +} + +int RTPPacket::BuildPacket(uint8_t payloadtype,const void *payloaddata,size_t payloadlen,uint16_t seqnr, + uint32_t timestamp,uint32_t ssrc,bool gotmarker,uint8_t numcsrcs,const uint32_t *csrcs, + bool gotextension,uint16_t extensionid,uint16_t extensionlen_numwords,const void *extensiondata, + void *buffer,size_t maxsize) +{ + if (numcsrcs > RTP_MAXCSRCS) + return ERR_RTP_PACKET_TOOMANYCSRCS; + + if (payloadtype > 127) // high bit should not be used + return ERR_RTP_PACKET_BADPAYLOADTYPE; + if (payloadtype == 72 || payloadtype == 73) // could cause confusion with rtcp types + return ERR_RTP_PACKET_BADPAYLOADTYPE; + + packetlength = sizeof(RTPHeader); + packetlength += sizeof(uint32_t)*((size_t)numcsrcs); + if (gotextension) + { + packetlength += sizeof(RTPExtensionHeader); + packetlength += sizeof(uint32_t)*((size_t)extensionlen_numwords); + } + packetlength += payloadlen; + + if (maxsize > 0 && packetlength > maxsize) + { + packetlength = 0; + return ERR_RTP_PACKET_DATAEXCEEDSMAXSIZE; + } + + // Ok, now we'll just fill in... + + RTPHeader *rtphdr; + + if (buffer == 0) + { + packet = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTPPACKET) uint8_t [packetlength]; + if (packet == 0) + { + packetlength = 0; + return ERR_RTP_OUTOFMEM; + } + externalbuffer = false; + } + else + { + packet = (uint8_t *)buffer; + externalbuffer = true; + } + + RTPPacket::hasmarker = gotmarker; + RTPPacket::hasextension = gotextension; + RTPPacket::numcsrcs = numcsrcs; + RTPPacket::payloadtype = payloadtype; + RTPPacket::extseqnr = (uint32_t)seqnr; + RTPPacket::timestamp = timestamp; + RTPPacket::ssrc = ssrc; + RTPPacket::payloadlength = payloadlen; + RTPPacket::extid = extensionid; + RTPPacket::extensionlength = ((size_t)extensionlen_numwords)*sizeof(uint32_t); + + rtphdr = (RTPHeader *)packet; + rtphdr->version = RTP_VERSION; + rtphdr->padding = 0; + if (gotmarker) + rtphdr->marker = 1; + else + rtphdr->marker = 0; + if (gotextension) + rtphdr->extension = 1; + else + rtphdr->extension = 0; + rtphdr->csrccount = numcsrcs; + rtphdr->payloadtype = payloadtype&127; // make sure high bit isn't set + rtphdr->sequencenumber = htons(seqnr); + rtphdr->timestamp = htonl(timestamp); + rtphdr->ssrc = htonl(ssrc); + + uint32_t *curcsrc; + int i; + + curcsrc = (uint32_t *)(packet+sizeof(RTPHeader)); + for (i = 0 ; i < numcsrcs ; i++,curcsrc++) + *curcsrc = htonl(csrcs[i]); + + payload = packet+sizeof(RTPHeader)+((size_t)numcsrcs)*sizeof(uint32_t); + if (gotextension) + { + RTPExtensionHeader *rtpexthdr = (RTPExtensionHeader *)payload; + + rtpexthdr->extid = htons(extensionid); + rtpexthdr->length = htons((uint16_t)extensionlen_numwords); + + payload += sizeof(RTPExtensionHeader); + memcpy(payload,extensiondata,RTPPacket::extensionlength); + + payload += RTPPacket::extensionlength; + } + memcpy(payload,payloaddata,payloadlen); + return 0; +} + +#ifdef RTPDEBUG +void RTPPacket::Dump() +{ + int i; + + printf("Payload type: %d\n",(int)GetPayloadType()); + printf("Extended sequence number: 0x%08x\n",GetExtendedSequenceNumber()); + printf("Timestamp: 0x%08x\n",GetTimestamp()); + printf("SSRC: 0x%08x\n",GetSSRC()); + printf("Marker: %s\n",HasMarker()?"yes":"no"); + printf("CSRC count: %d\n",GetCSRCCount()); + for (i = 0 ; i < GetCSRCCount() ; i++) + printf(" CSRC[%02d]: 0x%08x\n",i,GetCSRC(i)); + printf("Payload: %s\n",GetPayloadData()); + printf("Payload length: %d\n",GetPayloadLength()); + printf("Packet length: %d\n",GetPacketLength()); + printf("Extension: %s\n",HasExtension()?"yes":"no"); + if (HasExtension()) + { + printf(" Extension ID: 0x%04x\n",GetExtensionID()); + printf(" Extension data: %s\n",GetExtensionData()); + printf(" Extension length: %d\n",GetExtensionLength()); + } +} +#endif // RTPDEBUG + diff --git a/src/rtppacket.h b/src/rtppacket.h new file mode 100644 index 0000000..9046ec2 --- /dev/null +++ b/src/rtppacket.h @@ -0,0 +1,178 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtppacket.h + */ + +#ifndef RTPPACKET_H + +#define RTPPACKET_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#include "rtptimeutilities.h" +#include "rtpmemoryobject.h" + +class RTPRawPacket; + +/** Represents an RTP Packet. + * The RTPPacket class can be used to parse a RTPRawPacket instance if it represents RTP data. + * The class can also be used to create a new RTP packet according to the parameters specified by + * the user. + */ +class RTPPacket : public RTPMemoryObject +{ +public: + /** Creates an RTPPacket instance based upon the data in \c rawpack, optionally installing a memory manager. + * Creates an RTPPacket instance based upon the data in \c rawpack, optionally installing a memory manager. + * If successful, the data is moved from the raw packet to the RTPPacket instance. + */ + RTPPacket(RTPRawPacket &rawpack,RTPMemoryManager *mgr = 0); + + /** Creates a new buffer for an RTP packet and fills in the fields according to the specified parameters. + * Creates a new buffer for an RTP packet and fills in the fields according to the specified parameters. + * If \c maxpacksize is not equal to zero, an error is generated if the total packet size would exceed + * \c maxpacksize. The arguments of the constructor are self-explanatory. Note that the size of a header + * extension is specified in a number of 32-bit words. A memory manager can be installed. + */ + RTPPacket(uint8_t payloadtype,const void *payloaddata,size_t payloadlen,uint16_t seqnr, + uint32_t timestamp,uint32_t ssrc,bool gotmarker,uint8_t numcsrcs,const uint32_t *csrcs, + bool gotextension,uint16_t extensionid,uint16_t extensionlen_numwords,const void *extensiondata, + size_t maxpacksize, RTPMemoryManager *mgr = 0); + + /** This constructor is similar to the other constructor, but here data is stored in an external buffer + * \c buffer with size \c buffersize. */ + RTPPacket(uint8_t payloadtype,const void *payloaddata,size_t payloadlen,uint16_t seqnr, + uint32_t timestamp,uint32_t ssrc,bool gotmarker,uint8_t numcsrcs,const uint32_t *csrcs, + bool gotextension,uint16_t extensionid,uint16_t extensionlen_numwords,const void *extensiondata, + void *buffer,size_t buffersize,RTPMemoryManager *mgr = 0); + + virtual ~RTPPacket() { if (packet && !externalbuffer) RTPDeleteByteArray(packet,GetMemoryManager()); } + + /** If an error occurred in one of the constructors, this function returns the error code. */ + int GetCreationError() const { return error; } + + /** Returns \c true if the RTP packet has a header extension and \c false otherwise. */ + bool HasExtension() const { return hasextension; } + + /** Returns \c true if the marker bit was set and \c false otherwise. */ + bool HasMarker() const { return hasmarker; } + + /** Returns the number of CSRCs contained in this packet. */ + int GetCSRCCount() const { return numcsrcs; } + + /** Returns a specific CSRC identifier. + * Returns a specific CSRC identifier. The parameter \c num can go from 0 to GetCSRCCount()-1. + */ + uint32_t GetCSRC(int num) const; + + /** Returns the payload type of the packet. */ + uint8_t GetPayloadType() const { return payloadtype; } + + /** Returns the extended sequence number of the packet. + * Returns the extended sequence number of the packet. When the packet is just received, + * only the low $16$ bits will be set. The high 16 bits can be filled in later. + */ + uint32_t GetExtendedSequenceNumber() const { return extseqnr; } + + /** Returns the sequence number of this packet. */ + uint16_t GetSequenceNumber() const { return (uint16_t)(extseqnr&0x0000FFFF); } + + /** Sets the extended sequence number of this packet to \c seq. */ + void SetExtendedSequenceNumber(uint32_t seq) { extseqnr = seq; } + + /** Returns the timestamp of this packet. */ + uint32_t GetTimestamp() const { return timestamp; } + + /** Returns the SSRC identifier stored in this packet. */ + uint32_t GetSSRC() const { return ssrc; } + + /** Returns a pointer to the data of the entire packet. */ + uint8_t *GetPacketData() const { return packet; } + + /** Returns a pointer to the actual payload data. */ + uint8_t *GetPayloadData() const { return payload; } + + /** Returns the length of the entire packet. */ + size_t GetPacketLength() const { return packetlength; } + + /** Returns the payload length. */ + size_t GetPayloadLength() const { return payloadlength; } + + /** If a header extension is present, this function returns the extension identifier. */ + uint16_t GetExtensionID() const { return extid; } + + /** Returns the length of the header extension data. */ + uint8_t *GetExtensionData() const { return extension; } + + /** Returns the length of the header extension data. */ + size_t GetExtensionLength() const { return extensionlength; } +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG + + /** Returns the time at which this packet was received. + * When an RTPPacket instance is created from an RTPRawPacket instance, the raw packet's + * reception time is stored in the RTPPacket instance. This function then retrieves that + * time. + */ + RTPTime GetReceiveTime() const { return receivetime; } +private: + void Clear(); + int ParseRawPacket(RTPRawPacket &rawpack); + int BuildPacket(uint8_t payloadtype,const void *payloaddata,size_t payloadlen,uint16_t seqnr, + uint32_t timestamp,uint32_t ssrc,bool gotmarker,uint8_t numcsrcs,const uint32_t *csrcs, + bool gotextension,uint16_t extensionid,uint16_t extensionlen_numwords,const void *extensiondata, + void *buffer,size_t maxsize); + + int error; + + bool hasextension,hasmarker; + int numcsrcs; + + uint8_t payloadtype; + uint32_t extseqnr,timestamp,ssrc; + uint8_t *packet,*payload; + size_t packetlength,payloadlength; + + uint16_t extid; + uint8_t *extension; + size_t extensionlength; + + bool externalbuffer; + + RTPTime receivetime; +}; + +#endif // RTPPACKET_H + diff --git a/src/rtppacketbuilder.cpp b/src/rtppacketbuilder.cpp new file mode 100644 index 0000000..76dca01 --- /dev/null +++ b/src/rtppacketbuilder.cpp @@ -0,0 +1,268 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtppacketbuilder.h" +#include "rtperrors.h" +#include "rtppacket.h" +#include "rtpsources.h" +#include <time.h> +#include <stdlib.h> +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTPPacketBuilder::RTPPacketBuilder(RTPMemoryManager *mgr) : RTPMemoryObject(mgr),lastwallclocktime(0,0) +{ + init = false; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTPPacketBuilder::~RTPPacketBuilder() +{ + Destroy(); +} + +int RTPPacketBuilder::Init(size_t max) +{ + if (init) + return ERR_RTP_PACKBUILD_ALREADYINIT; + if (max <= 0) + return ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE; + + maxpacksize = max; + buffer = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTPPACKETBUILDERBUFFER) uint8_t [max]; + if (buffer == 0) + return ERR_RTP_OUTOFMEM; + packetlength = 0; + + CreateNewSSRC(); + + deftsset = false; + defptset = false; + defmarkset = false; + + numcsrcs = 0; + + init = true; + return 0; +} + +void RTPPacketBuilder::Destroy() +{ + if (!init) + return; + RTPDeleteByteArray(buffer,GetMemoryManager()); + init = false; +} + +int RTPPacketBuilder::SetMaximumPacketSize(size_t max) +{ + uint8_t *newbuf; + + if (max <= 0) + return ERR_RTP_PACKBUILD_INVALIDMAXPACKETSIZE; + newbuf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_BUFFER_RTPPACKETBUILDERBUFFER) uint8_t[max]; + if (newbuf == 0) + return ERR_RTP_OUTOFMEM; + + RTPDeleteByteArray(buffer,GetMemoryManager()); + buffer = newbuf; + maxpacksize = max; + return 0; +} + +int RTPPacketBuilder::AddCSRC(uint32_t csrc) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + if (numcsrcs >= RTP_MAXCSRCS) + return ERR_RTP_PACKBUILD_CSRCLISTFULL; + + int i; + + for (i = 0 ; i < numcsrcs ; i++) + { + if (csrcs[i] == csrc) + return ERR_RTP_PACKBUILD_CSRCALREADYINLIST; + } + csrcs[numcsrcs] = csrc; + numcsrcs++; + return 0; +} + +int RTPPacketBuilder::DeleteCSRC(uint32_t csrc) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + + int i = 0; + bool found = false; + + while (!found && i < numcsrcs) + { + if (csrcs[i] == csrc) + found = true; + else + i++; + } + + if (!found) + return ERR_RTP_PACKBUILD_CSRCNOTINLIST; + + // move the last csrc in the place of the deleted one + numcsrcs--; + if (numcsrcs > 0 && numcsrcs != i) + csrcs[i] = csrcs[numcsrcs]; + return 0; +} + +void RTPPacketBuilder::ClearCSRCList() +{ + if (!init) + return; + numcsrcs = 0; +} + +uint32_t RTPPacketBuilder::CreateNewSSRC() +{ + ssrc = rtprnd.GetRandom32(); + timestamp = rtprnd.GetRandom32(); + seqnr = rtprnd.GetRandom16(); + + // p 38: the count SHOULD be reset if the sender changes its SSRC identifier + numpayloadbytes = 0; + numpackets = 0; + return ssrc; +} + +uint32_t RTPPacketBuilder::CreateNewSSRC(RTPSources &sources) +{ + bool found; + + do + { + ssrc = rtprnd.GetRandom32(); + found = sources.GotEntry(ssrc); + } while (found); + + timestamp = rtprnd.GetRandom32(); + seqnr = rtprnd.GetRandom16(); + + // p 38: the count SHOULD be reset if the sender changes its SSRC identifier + numpayloadbytes = 0; + numpackets = 0; + return ssrc; +} + +int RTPPacketBuilder::BuildPacket(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + if (!defptset) + return ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET; + if (!defmarkset) + return ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET; + if (!deftsset) + return ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET; + return PrivateBuildPacket(data,len,defaultpayloadtype,defaultmark,defaulttimestampinc,false); +} + +int RTPPacketBuilder::BuildPacket(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + return PrivateBuildPacket(data,len,pt,mark,timestampinc,false); +} + +int RTPPacketBuilder::BuildPacketEx(const void *data,size_t len, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + if (!defptset) + return ERR_RTP_PACKBUILD_DEFAULTPAYLOADTYPENOTSET; + if (!defmarkset) + return ERR_RTP_PACKBUILD_DEFAULTMARKNOTSET; + if (!deftsset) + return ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET; + return PrivateBuildPacket(data,len,defaultpayloadtype,defaultmark,defaulttimestampinc,true,hdrextID,hdrextdata,numhdrextwords); +} + +int RTPPacketBuilder::BuildPacketEx(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + return PrivateBuildPacket(data,len,pt,mark,timestampinc,true,hdrextID,hdrextdata,numhdrextwords); + +} + +int RTPPacketBuilder::PrivateBuildPacket(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc,bool gotextension, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords) +{ + RTPPacket p(pt,data,len,seqnr,timestamp,ssrc,mark,numcsrcs,csrcs,gotextension,hdrextID, + (uint16_t)numhdrextwords,hdrextdata,buffer,maxpacksize,GetMemoryManager()); + int status = p.GetCreationError(); + + if (status < 0) + return status; + packetlength = p.GetPacketLength(); + + if (numpackets == 0) // first packet + { + lastwallclocktime = RTPTime::CurrentTime(); + lastrtptimestamp = timestamp; + prevrtptimestamp = timestamp; + } + else if (timestamp != prevrtptimestamp) + { + lastwallclocktime = RTPTime::CurrentTime(); + lastrtptimestamp = timestamp; + prevrtptimestamp = timestamp; + } + + numpayloadbytes += (uint32_t)p.GetPayloadLength(); + numpackets++; + timestamp += timestampinc; + seqnr++; + + return 0; +} + + diff --git a/src/rtppacketbuilder.h b/src/rtppacketbuilder.h new file mode 100644 index 0000000..bb34164 --- /dev/null +++ b/src/rtppacketbuilder.h @@ -0,0 +1,261 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtppacketbuilder.h + */ + +#ifndef RTPPACKETBUILDER_H + +#define RTPPACKETBUILDER_H + +#include "rtpconfig.h" +#include "rtperrors.h" +#include "rtpdefines.h" +#include "rtprandom.h" +#include "rtptimeutilities.h" +#include "rtptypes.h" +#include "rtpmemoryobject.h" + +class RTPSources; + +/** This class can be used to build RTP packets and is a bit more high-level than the RTPPacket + * class: it generates an SSRC identifier, keeps track of timestamp and sequence number etc. + */ +class RTPPacketBuilder : public RTPMemoryObject +{ +public: + /** Constructs an instance, optionally installing a memory manager. */ + RTPPacketBuilder(RTPMemoryManager *mgr = 0); + ~RTPPacketBuilder(); + + /** Initializes the builder to only allow packets with a size below \c maxpacksize. */ + int Init(size_t maxpacksize); + + /** Cleans up the builder. */ + void Destroy(); + + /** Returns the number of packets which have been created with the current SSRC identifier. */ + uint32_t GetPacketCount() { if (!init) return 0; return numpackets; } + + /** Returns the number of payload octets which have been generated with this SSRC identifier. */ + uint32_t GetPayloadOctetCount() { if (!init) return 0; return numpayloadbytes; } + + /** Sets the maximum allowed packet size to \c maxpacksize. */ + int SetMaximumPacketSize(size_t maxpacksize); + + /** Adds a CSRC to the CSRC list which will be stored in the RTP packets. */ + int AddCSRC(uint32_t csrc); + + /** Deletes a CSRC from the list which will be stored in the RTP packets. */ + int DeleteCSRC(uint32_t csrc); + + /** Clears the CSRC list. */ + void ClearCSRCList(); + + /** Builds a packet with payload \c data and payload length \c len. + * Builds a packet with payload \c data and payload length \c len. The payload type, marker + * and timestamp increment used will be those that have been set using the \c SetDefault + * functions below. + */ + int BuildPacket(const void *data,size_t len); + + /** Builds a packet with payload \c data and payload length \c len. + * Builds a packet with payload \c data and payload length \c len. The payload type will be + * set to \c pt, the marker bit to \c mark and after building this packet, the timestamp will + * be incremented with \c timestamp. + */ + int BuildPacket(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc); + + /** Builds a packet with payload \c data and payload length \c len. + * Builds a packet with payload \c data and payload length \c len. The payload type, marker + * and timestamp increment used will be those that have been set using the \c SetDefault + * functions below. This packet will also contain an RTP header extension with identifier + * \c hdrextID and data \c hdrextdata. The length of the header extension data is given by + * \c numhdrextwords which expresses the length in a number of 32-bit words. + */ + int BuildPacketEx(const void *data,size_t len, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords); + + /** Builds a packet with payload \c data and payload length \c len. + * Builds a packet with payload \c data and payload length \c len. The payload type will be set + * to \c pt, the marker bit to \c mark and after building this packet, the timestamp will + * be incremented with \c timestamp. This packet will also contain an RTP header extension + * with identifier \c hdrextID and data \c hdrextdata. The length of the header extension + * data is given by \c numhdrextwords which expresses the length in a number of 32-bit words. + */ + int BuildPacketEx(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords); + + /** Returns a pointer to the last built RTP packet data. */ + uint8_t *GetPacket() { if (!init) return 0; return buffer; } + + /** Returns the size of the last built RTP packet. */ + size_t GetPacketLength() { if (!init) return 0; return packetlength; } + + /** Sets the default payload type to \c pt. */ + int SetDefaultPayloadType(uint8_t pt); + + /** Sets the default marker bit to \c m. */ + int SetDefaultMark(bool m); + + /** Sets the default timestamp increment to \c timestampinc. */ + int SetDefaultTimestampIncrement(uint32_t timestampinc); + + /** This function increments the timestamp with the amount given by \c inc. + * This function increments the timestamp with the amount given by \c inc. This can be useful + * if, for example, a packet was not sent because it contained only silence. Then, this function + * should be called to increment the timestamp with the appropriate amount so that the next packets + * will still be played at the correct time at other hosts. + */ + int IncrementTimestamp(uint32_t inc); + + /** This function increments the timestamp with the amount given set by the SetDefaultTimestampIncrement + * member function. + * This function increments the timestamp with the amount given set by the SetDefaultTimestampIncrement + * member function. This can be useful if, for example, a packet was not sent because it contained only silence. + * Then, this function should be called to increment the timestamp with the appropriate amount so that the next + * packets will still be played at the correct time at other hosts. + */ + int IncrementTimestampDefault(); + + /** Creates a new SSRC to be used in generated packets. + * Creates a new SSRC to be used in generated packets. This will also generate new timestamp and + * sequence number offsets. + */ + uint32_t CreateNewSSRC(); + + /** Creates a new SSRC to be used in generated packets. + * Creates a new SSRC to be used in generated packets. This will also generate new timestamp and + * sequence number offsets. The source table \c sources is used to make sure that the chosen SSRC + * isn't used by another participant yet. + */ + uint32_t CreateNewSSRC(RTPSources &sources); + + /** Returns the current SSRC identifier. */ + uint32_t GetSSRC() const { if (!init) return 0; return ssrc; } + + /** Returns the current RTP timestamp. */ + uint32_t GetTimestamp() const { if (!init) return 0; return timestamp; } + + /** Returns the current sequence number. */ + uint16_t GetSequenceNumber() const { if (!init) return 0; return seqnr; } + + /** Returns the time at which a packet was generated. + * Returns the time at which a packet was generated. This is not necessarily the time at which + * the last RTP packet was generated: if the timestamp increment was zero, the time is not updated. + */ + RTPTime GetPacketTime() const { if (!init) return RTPTime(0,0); return lastwallclocktime; } + + /** Returns the RTP timestamp which corresponds to the time returned by the previous function. */ + uint32_t GetPacketTimestamp() const { if (!init) return 0; return lastrtptimestamp; } +private: + int PrivateBuildPacket(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc,bool gotextension, + uint16_t hdrextID = 0,const void *hdrextdata = 0,size_t numhdrextwords = 0); + + RTPRandom rtprnd; + size_t maxpacksize; + uint8_t *buffer; + size_t packetlength; + + uint32_t numpayloadbytes; + uint32_t numpackets; + bool init; + + uint32_t ssrc; + uint32_t timestamp; + uint16_t seqnr; + + uint32_t defaulttimestampinc; + uint8_t defaultpayloadtype; + bool defaultmark; + + bool deftsset,defptset,defmarkset; + + uint32_t csrcs[RTP_MAXCSRCS]; + int numcsrcs; + + RTPTime lastwallclocktime; + uint32_t lastrtptimestamp; + uint32_t prevrtptimestamp; +}; + +inline int RTPPacketBuilder::SetDefaultPayloadType(uint8_t pt) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + defptset = true; + defaultpayloadtype = pt; + return 0; +} + +inline int RTPPacketBuilder::SetDefaultMark(bool m) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + defmarkset = true; + defaultmark = m; + return 0; +} + +inline int RTPPacketBuilder::SetDefaultTimestampIncrement(uint32_t timestampinc) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + deftsset = true; + defaulttimestampinc = timestampinc; + return 0; +} + +inline int RTPPacketBuilder::IncrementTimestamp(uint32_t inc) +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + timestamp += inc; + return 0; +} + +inline int RTPPacketBuilder::IncrementTimestampDefault() +{ + if (!init) + return ERR_RTP_PACKBUILD_NOTINIT; + if (!deftsset) + return ERR_RTP_PACKBUILD_DEFAULTTSINCNOTSET; + timestamp += defaulttimestampinc; + return 0; +} + +#endif // RTPPACKETBUILDER_H + diff --git a/src/rtppollthread.cpp b/src/rtppollthread.cpp new file mode 100644 index 0000000..cb7405d --- /dev/null +++ b/src/rtppollthread.cpp @@ -0,0 +1,169 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtppollthread.h" + +#ifdef RTP_SUPPORT_THREAD + +#include "rtpsession.h" +#include "rtcpscheduler.h" +#include "rtperrors.h" +#include "rtprawpacket.h" +#include <time.h> + +#ifndef _WIN32_WCE + #include <iostream> +#endif // _WIN32_WCE + +#include "rtpdebug.h" + +RTPPollThread::RTPPollThread(RTPSession &session,RTCPScheduler &sched):rtpsession(session),rtcpsched(sched) +{ + stop = false; + transmitter = 0; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTPPollThread::~RTPPollThread() +{ + Stop(); +} + +int RTPPollThread::Start(RTPTransmitter *trans) +{ + if (JThread::IsRunning()) + return ERR_RTP_POLLTHREAD_ALREADYRUNNING; + + transmitter = trans; + if (!stopmutex.IsInitialized()) + { + if (stopmutex.Init() < 0) + return ERR_RTP_POLLTHREAD_CANTINITMUTEX; + } + stop = false; + if (JThread::Start() < 0) + return ERR_RTP_POLLTHREAD_CANTSTARTTHREAD; + return 0; +} + +void RTPPollThread::Stop() +{ + if (!IsRunning()) + return; + + stopmutex.Lock(); + stop = true; + stopmutex.Unlock(); + + if (transmitter) + transmitter->AbortWait(); + + RTPTime thetime = RTPTime::CurrentTime(); + bool done = false; + + while (JThread::IsRunning() && !done) + { + // wait max 5 sec + RTPTime curtime = RTPTime::CurrentTime(); + if ((curtime.GetDouble()-thetime.GetDouble()) > 5.0) + done = true; + RTPTime::Wait(RTPTime(0,10000)); + } + + if (JThread::IsRunning()) + { +#ifndef _WIN32_WCE + std::cerr << "RTPPollThread: Warning! Having to kill thread!" << std::endl; +#endif // _WIN32_WCE + JThread::Kill(); + } + stop = false; + transmitter = 0; +} + +void *RTPPollThread::Thread() +{ + JThread::ThreadStarted(); + + bool stopthread; + + stopmutex.Lock(); + stopthread = stop; + stopmutex.Unlock(); + while (!stopthread) + { + int status; + + rtpsession.schedmutex.Lock(); + rtpsession.sourcesmutex.Lock(); + + RTPTime rtcpdelay = rtcpsched.GetTransmissionDelay(); + + rtpsession.sourcesmutex.Unlock(); + rtpsession.schedmutex.Unlock(); + + if ((status = transmitter->WaitForIncomingData(rtcpdelay)) < 0) + { + stopthread = true; + rtpsession.OnPollThreadError(status); + } + else + { + if ((status = transmitter->Poll()) < 0) + { + stopthread = true; + rtpsession.OnPollThreadError(status); + } + else + { + if ((status = rtpsession.ProcessPolledData()) < 0) + { + stopthread = true; + rtpsession.OnPollThreadError(status); + } + else + { + rtpsession.OnPollThreadStep(); + stopmutex.Lock(); + stopthread = stop; + stopmutex.Unlock(); + } + } + } + } + return 0; +} + +#endif // RTP_SUPPORT_THREAD + diff --git a/src/rtppollthread.h b/src/rtppollthread.h new file mode 100644 index 0000000..37350ec --- /dev/null +++ b/src/rtppollthread.h @@ -0,0 +1,74 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtppollthread.h + */ + +#ifndef RTPPOLLTHREAD_H + +#define RTPPOLLTHREAD_H + +#include "rtpconfig.h" + +#ifdef RTP_SUPPORT_THREAD + +#include "rtptransmitter.h" + +#include <jthread.h> +#include <jmutex.h> +#include <list> + +class RTPSession; +class RTCPScheduler; + +class RTPPollThread : private JThread +{ +public: + RTPPollThread(RTPSession &session,RTCPScheduler &rtcpsched); + ~RTPPollThread(); + int Start(RTPTransmitter *trans); + void Stop(); +private: + void *Thread(); + + bool stop; + JMutex stopmutex; + RTPTransmitter *transmitter; + + RTPSession &rtpsession; + RTCPScheduler &rtcpsched; +}; + +#endif // RTP_SUPPORT_THREAD + +#endif // RTPPOLLTHREAD_H diff --git a/src/rtprandom.cpp b/src/rtprandom.cpp new file mode 100644 index 0000000..310c65a --- /dev/null +++ b/src/rtprandom.cpp @@ -0,0 +1,355 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#if defined(WIN32) && !defined(_WIN32_WCE) + #define _CRT_RAND_S +#endif // WIN32 || _WIN32_WCE + +#include "rtprandom.h" +#include <time.h> +#ifndef WIN32 + #include <unistd.h> +#else + #ifndef _WIN32_WCE + #include <process.h> + #else + #include <windows.h> + #include <kfuncs.h> + #endif // _WIN32_WINCE + #include <stdlib.h> +#endif // WIN32 + +#include "rtpdebug.h" + +#if (defined(WIN32) && !defined(_WIN32_WCE)) && (defined(_MSC_VER) && _MSC_VER >= 1400 ) + // If compiling on VC 8 or later for full Windows, we'll attempt to use rand_s, + // which generates better random numbers. However, its only supported on Windows XP, + // Windows Server 2003, and later, so we'll do a run-time check to see if we can + // use it (it won't work on Windows 2000 SP4 for example). + #define RTP_SUPPORT_RANDS + #define QUOTEPROCNAME(x) #x + #ifndef RtlGenRandom + #define RtlGenRandom SystemFunction036 + #endif + + static bool checked_rand_s = false; + static bool use_rand_s = false; +#endif + +uint8_t GetRandom8_Default(); +uint16_t GetRandom16_Default(); +uint32_t GetRandom32_Default(); +double GetRandomDouble_Default(); + +RTPRandom::RTPRandom() +{ + +#if defined(RTP_SUPPORT_GNUDRAND) || defined(RTP_SUPPORT_RANDR) + uint32_t x; + + x = (uint32_t)getpid(); + x += (uint32_t)time(0); + x -= (uint32_t)clock(); + x ^= (uint32_t)((uint8_t *)this - (uint8_t *)0); + +#ifdef RTP_SUPPORT_GNUDRAND + srand48_r(x,&drandbuffer); +#else + state = (unsigned int)x; +#endif // RTP_SUPPORT_GNUDRAND + +#else // use simple rand and srand functions (or maybe rand_s) + +#ifdef RTP_SUPPORT_RANDS + if(checked_rand_s == false) + { + checked_rand_s = true; + use_rand_s = false; + + HMODULE hAdvApi32 = LoadLibrary("ADVAPI32.DLL"); + if(hAdvApi32 != NULL) + { + if(NULL != GetProcAddress( hAdvApi32, QUOTEPROCNAME( RtlGenRandom ) )) + { + use_rand_s = true; + } + FreeLibrary(hAdvApi32); + hAdvApi32 = NULL; + } + } + + // Note: If we use the rand_s function, it does not require initialization of a seed. + if(!use_rand_s) + { +#endif + + uint32_t x; + +#ifndef _WIN32_WCE + x = (uint32_t)_getpid(); + x += (uint32_t)time(0); + x -= (uint32_t)clock(); +#else + x = (uint32_t)GetCurrentProcessId(); + + FILETIME ft; + SYSTEMTIME st; + + GetSystemTime(&st); + SystemTimeToFileTime(&st,&ft); + + x += ft.dwLowDateTime; +#endif // _WIN32_WCE + x ^= (uint32_t)((uint8_t *)this - (uint8_t *)0); + srand((unsigned int)x); + +#ifdef RTP_SUPPORT_RANDS + } // !support_rand_s +#endif + +#endif // RTP_SUPPORT_GNUDRAND || RTP_SUPPORT_RANDR + +} + +RTPRandom::~RTPRandom() +{ +} + +#if defined(RTP_SUPPORT_GNUDRAND) + +uint8_t RTPRandom::GetRandom8() +{ + double x; + drand48_r(&drandbuffer,&x); + uint8_t y = (uint8_t)(x*256.0); + return y; +} + +uint16_t RTPRandom::GetRandom16() +{ + double x; + drand48_r(&drandbuffer,&x); + uint16_t y = (uint16_t)(x*65536.0); + return y; +} + +uint32_t RTPRandom::GetRandom32() +{ + uint32_t a = GetRandom16(); + uint32_t b = GetRandom16(); + uint32_t y = (a << 16)|b; + return y; +} + +double RTPRandom::GetRandomDouble() +{ + double x; + drand48_r(&drandbuffer,&x); + return x; +} + +#elif defined(RTP_SUPPORT_RANDR) + +uint8_t RTPRandom::GetRandom8() +{ + uint8_t x; + + x = (uint8_t)(256.0*((double)rand_r(&state))/((double)RAND_MAX+1.0)); + return x; +} + +uint16_t RTPRandom::GetRandom16() +{ + uint16_t x; + + x = (uint16_t)(65536.0*((double)rand_r(&state))/((double)RAND_MAX+1.0)); + return x; +} + +uint32_t RTPRandom::GetRandom32() +{ + uint32_t x,y; + + x = (uint32_t)(65536.0*((double)rand_r(&state))/((double)RAND_MAX+1.0)); + y = x; + x = (uint32_t)(65536.0*((double)rand_r(&state))/((double)RAND_MAX+1.0)); + y ^= (x<<8); + x = (uint32_t)(65536.0*((double)rand_r(&state))/((double)RAND_MAX+1.0)); + y ^= (x<<16); + + return y; +} + +double RTPRandom::GetRandomDouble() +{ + double x = ((double)rand_r(&state))/((double)RAND_MAX+1.0); + return x; +} + +#elif defined(RTP_SUPPORT_RANDS) + +uint8_t RTPRandom::GetRandom8() +{ + if(use_rand_s) + { + uint8_t x; + unsigned int r; + + rand_s(&r); + x = (uint8_t)(256.0*((double)r)/((double)UINT_MAX+1.0)); + return x; + } + else + { + return GetRandom8_Default(); + } +} + +uint16_t RTPRandom::GetRandom16() +{ + if(use_rand_s) + { + uint16_t x; + unsigned int r; + + rand_s(&r); + x = (uint16_t)(65536.0*((double)r)/((double)UINT_MAX+1.0)); + return x; + } + else + { + return GetRandom16_Default(); + } +} + +uint32_t RTPRandom::GetRandom32() +{ + if(use_rand_s) + { + uint32_t x,y; + unsigned int r; + + rand_s(&r); + x = (uint32_t)(65536.0*((double)r)/((double)UINT_MAX+1.0)); + y = x; + rand_s(&r); + x = (uint32_t)(65536.0*((double)r)/((double)UINT_MAX+1.0)); + y ^= (x<<8); + rand_s(&r); + x = (uint32_t)(65536.0*((double)r)/((double)UINT_MAX+1.0)); + y ^= (x<<16); + + return y; + } + else + { + return GetRandom32_Default(); + } +} + +double RTPRandom::GetRandomDouble() +{ + if(use_rand_s) + { + unsigned int r; + + rand_s(&r); + double x = ((double)r)/((double)UINT_MAX+1.0); + return x; + } + else + { + return GetRandomDouble_Default(); + } +} + +#else // use rand() + +uint8_t RTPRandom::GetRandom8() +{ + return GetRandom8_Default(); +} + +uint16_t RTPRandom::GetRandom16() +{ + return GetRandom16_Default(); +} + +uint32_t RTPRandom::GetRandom32() +{ + return GetRandom32_Default(); +} + +double RTPRandom::GetRandomDouble() +{ + return GetRandomDouble_Default(); +} + +#endif // RTP_SUPPORT_GNUDRAND + + +uint8_t GetRandom8_Default() +{ + uint8_t x; + + x = (uint8_t)(256.0*((double)rand())/((double)RAND_MAX+1.0)); + return x; +} + +uint16_t GetRandom16_Default() +{ + uint16_t x; + + x = (uint16_t)(65536.0*((double)rand())/((double)RAND_MAX+1.0)); + return x; +} + +uint32_t GetRandom32_Default() +{ + uint32_t x,y; + + x = (uint32_t)(65536.0*((double)rand())/((double)RAND_MAX+1.0)); + y = x; + x = (uint32_t)(65536.0*((double)rand())/((double)RAND_MAX+1.0)); + y ^= (x<<8); + x = (uint32_t)(65536.0*((double)rand())/((double)RAND_MAX+1.0)); + y ^= (x<<16); + + return y; +} + +double GetRandomDouble_Default() +{ + double x = ((double)rand())/((double)RAND_MAX+1.0); + return x; +} + diff --git a/src/rtprandom.h b/src/rtprandom.h new file mode 100644 index 0000000..8a487b1 --- /dev/null +++ b/src/rtprandom.h @@ -0,0 +1,72 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtprandom.h + */ + +#ifndef RTPRANDOM_H + +#define RTPRANDOM_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#include <stdlib.h> + +/** The RTPRandom class can be used to generate random numbers. */ +class RTPRandom +{ +public: + RTPRandom(); + ~RTPRandom(); + + /** Returns a random eight bit value. */ + uint8_t GetRandom8(); + + /** Returns a random sixteen bit value. */ + uint16_t GetRandom16(); + + /** Returns a random thirty-two bit value. */ + uint32_t GetRandom32(); + + /** Returns a random number between $0.0$ and $1.0$. */ + double GetRandomDouble(); +private: +#if defined(RTP_SUPPORT_GNUDRAND) + struct drand48_data drandbuffer; +#elif defined(RTP_SUPPORT_RANDR) + unsigned int state; +#endif // RTP_SUPPORT_GNUDRAND +}; + +#endif // RTPRANDOM_H + diff --git a/src/rtprawpacket.h b/src/rtprawpacket.h new file mode 100644 index 0000000..1b4029a --- /dev/null +++ b/src/rtprawpacket.h @@ -0,0 +1,109 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtprawpacket.h + */ + +#ifndef RTPRAWPACKET_H + +#define RTPRAWPACKET_H + +#include "rtpconfig.h" +#include "rtptimeutilities.h" +#include "rtpaddress.h" +#include "rtptypes.h" +#include "rtpmemoryobject.h" + +/** This class is used by the transmission component to store the incoming RTP and RTCP data in. */ +class RTPRawPacket : public RTPMemoryObject +{ +public: + /** Creates an instance which stores data from \c data with length \c datalen. + * Creates an instance which stores data from \c data with length \c datalen. Only the pointer + * to the data is stored, no actual copy is made! The address from which this packet originated + * is set to \c address and the time at which the packet was received is set to \c recvtime. + * The flag which indicates whether this data is RTP or RTCP data is set to \c rtp. A memory + * manager can be installed as well. + */ + RTPRawPacket(uint8_t *data,size_t datalen,RTPAddress *address,RTPTime &recvtime,bool rtp,RTPMemoryManager *mgr = 0); + ~RTPRawPacket(); + + /** Returns the pointer to the data which is contained in this packet. */ + uint8_t *GetData() { return packetdata; } + + /** Returns the length of the packet described by this instance. */ + size_t GetDataLength() const { return packetdatalength; } + + /** Returns the time at which this packet was received. */ + RTPTime GetReceiveTime() const { return receivetime; } + + /** Returns the address stored in this packet. */ + const RTPAddress *GetSenderAddress() const { return senderaddress; } + + /** Returns \c true if this data is RTP data, \c false if it is RTCP data. */ + bool IsRTP() const { return isrtp; } + + /** Sets the pointer to the data stored in this packet to zero. + * Sets the pointer to the data stored in this packet to zero. This will prevent + * a \c delete call for the actual data when the destructor of RTPRawPacket is called. + * This function is used by the RTPPacket and RTCPCompoundPacket classes to obtain + * the packet data (without having to copy it) and to make sure the data isn't deleted + * when the destructor of RTPRawPacket is called. + */ + void ZeroData() { packetdata = 0; packetdatalength = 0; } +private: + uint8_t *packetdata; + size_t packetdatalength; + RTPTime receivetime; + RTPAddress *senderaddress; + bool isrtp; +}; + +inline RTPRawPacket::RTPRawPacket(uint8_t *data,size_t datalen,RTPAddress *address,RTPTime &recvtime,bool rtp,RTPMemoryManager *mgr):RTPMemoryObject(mgr),receivetime(recvtime) +{ + packetdata = data; + packetdatalength = datalen; + senderaddress = address; + isrtp = rtp; +} + +inline RTPRawPacket::~RTPRawPacket() +{ + if (packetdata) + RTPDeleteByteArray(packetdata,GetMemoryManager()); + if (senderaddress) + RTPDelete(senderaddress,GetMemoryManager()); +} + +#endif // RTPRAWPACKET_H + diff --git a/src/rtpsession.cpp b/src/rtpsession.cpp new file mode 100644 index 0000000..cce6195 --- /dev/null +++ b/src/rtpsession.cpp @@ -0,0 +1,1477 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpsession.h" +#include "rtperrors.h" +#include "rtppollthread.h" +#include "rtpudpv4transmitter.h" +#include "rtpudpv6transmitter.h" +#include "rtpsessionparams.h" +#include "rtpdefines.h" +#include "rtprawpacket.h" +#include "rtppacket.h" +#include "rtptimeutilities.h" +#include "rtpmemorymanager.h" +#ifdef RTP_SUPPORT_SENDAPP + #include "rtcpcompoundpacket.h" +#endif // RTP_SUPPORT_SENDAPP +#ifndef WIN32 + #include <unistd.h> + #include <stdlib.h> +#else + #include <winbase.h> +#endif // WIN32 + +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +#ifdef RTP_SUPPORT_THREAD + #define SOURCES_LOCK { if (usingpollthread) sourcesmutex.Lock(); } + #define SOURCES_UNLOCK { if (usingpollthread) sourcesmutex.Unlock(); } + #define BUILDER_LOCK { if (usingpollthread) buildermutex.Lock(); } + #define BUILDER_UNLOCK { if (usingpollthread) buildermutex.Unlock(); } + #define SCHED_LOCK { if (usingpollthread) schedmutex.Lock(); } + #define SCHED_UNLOCK { if (usingpollthread) schedmutex.Unlock(); } + #define PACKSENT_LOCK { if (usingpollthread) packsentmutex.Lock(); } + #define PACKSENT_UNLOCK { if (usingpollthread) packsentmutex.Unlock(); } +#else + #define SOURCES_LOCK + #define SOURCES_UNLOCK + #define BUILDER_LOCK + #define BUILDER_UNLOCK + #define SCHED_LOCK + #define SCHED_UNLOCK + #define PACKSENT_LOCK + #define PACKSENT_UNLOCK +#endif // RTP_SUPPORT_THREAD + +RTPSession::RTPSession(RTPMemoryManager *mgr) + : RTPMemoryObject(mgr),sources(*this,mgr),packetbuilder(mgr),rtcpsched(sources),rtcpbuilder(sources,packetbuilder,mgr), + collisionlist(mgr) +{ + created = false; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTPSession::~RTPSession() +{ + Destroy(); +} + +int RTPSession::Create(const RTPSessionParams &sessparams,const RTPTransmissionParams *transparams /* = 0 */, + RTPTransmitter::TransmissionProtocol protocol) +{ + int status; + + if (created) + return ERR_RTP_SESSION_ALREADYCREATED; + + usingpollthread = sessparams.IsUsingPollThread(); + useSR_BYEifpossible = sessparams.GetSenderReportForBYE(); + sentpackets = false; + + // Check max packet size + + if ((maxpacksize = sessparams.GetMaximumPacketSize()) < RTP_MINPACKETSIZE) + return ERR_RTP_SESSION_MAXPACKETSIZETOOSMALL; + + // Initialize the transmission component + + rtptrans = 0; + switch(protocol) + { + case RTPTransmitter::IPv4UDPProto: + rtptrans = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPTRANSMITTER) RTPUDPv4Transmitter(GetMemoryManager()); + break; +#ifdef RTP_SUPPORT_IPV6 + case RTPTransmitter::IPv6UDPProto: + rtptrans = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPTRANSMITTER) RTPUDPv6Transmitter(GetMemoryManager()); + break; +#endif // RTP_SUPPORT_IPV6 + case RTPTransmitter::UserDefinedProto: + rtptrans = NewUserDefinedTransmitter(); + if (rtptrans == 0) + return ERR_RTP_SESSION_USERDEFINEDTRANSMITTERNULL; + break; + default: + return ERR_RTP_SESSION_UNSUPPORTEDTRANSMISSIONPROTOCOL; + } + + if (rtptrans == 0) + return ERR_RTP_OUTOFMEM; + if ((status = rtptrans->Init(usingpollthread)) < 0) + { + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + if ((status = rtptrans->Create(maxpacksize,transparams)) < 0) + { + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + + deletetransmitter = true; + return InternalCreate(sessparams); +} + +int RTPSession::Create(const RTPSessionParams &sessparams,RTPTransmitter *transmitter) +{ + int status; + + if (created) + return ERR_RTP_SESSION_ALREADYCREATED; + + usingpollthread = sessparams.IsUsingPollThread(); + useSR_BYEifpossible = sessparams.GetSenderReportForBYE(); + sentpackets = false; + + // Check max packet size + + if ((maxpacksize = sessparams.GetMaximumPacketSize()) < RTP_MINPACKETSIZE) + return ERR_RTP_SESSION_MAXPACKETSIZETOOSMALL; + + rtptrans = transmitter; + + if ((status = rtptrans->SetMaximumPacketSize(maxpacksize)) < 0) + return status; + + deletetransmitter = false; + return InternalCreate(sessparams); +} + +int RTPSession::InternalCreate(const RTPSessionParams &sessparams) +{ + int status; + + // Initialize packet builder + + if ((status = packetbuilder.Init(maxpacksize)) < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + +#ifdef RTP_SUPPORT_PROBATION + + // Set probation type + sources.SetProbationType(sessparams.GetProbationType()); + +#endif // RTP_SUPPORT_PROBATION + + // Add our own ssrc to the source table + + if ((status = sources.CreateOwnSSRC(packetbuilder.GetSSRC())) < 0) + { + packetbuilder.Destroy(); + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + + // Set the initial receive mode + + if ((status = rtptrans->SetReceiveMode(sessparams.GetReceiveMode())) < 0) + { + packetbuilder.Destroy(); + sources.Clear(); + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + + // Init the RTCP packet builder + + double timestampunit = sessparams.GetOwnTimestampUnit(); + uint8_t buf[1024]; + size_t buflen = 1024; + + if ((status = CreateCNAME(buf,&buflen,sessparams.GetResolveLocalHostname())) < 0) + { + packetbuilder.Destroy(); + sources.Clear(); + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + + if ((status = rtcpbuilder.Init(maxpacksize,timestampunit,buf,buflen)) < 0) + { + packetbuilder.Destroy(); + sources.Clear(); + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + return status; + } + + // Set scheduler parameters + + rtcpsched.Reset(); + rtcpsched.SetHeaderOverhead(rtptrans->GetHeaderOverhead()); + + RTCPSchedulerParams schedparams; + + sessionbandwidth = sessparams.GetSessionBandwidth(); + controlfragment = sessparams.GetControlTrafficFraction(); + + if ((status = schedparams.SetRTCPBandwidth(sessionbandwidth*controlfragment)) < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return status; + } + if ((status = schedparams.SetSenderBandwidthFraction(sessparams.GetSenderControlBandwidthFraction())) < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return status; + } + if ((status = schedparams.SetMinimumTransmissionInterval(sessparams.GetMinimumRTCPTransmissionInterval())) < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return status; + } + schedparams.SetUseHalfAtStartup(sessparams.GetUseHalfRTCPIntervalAtStartup()); + schedparams.SetRequestImmediateBYE(sessparams.GetRequestImmediateBYE()); + + rtcpsched.SetParameters(schedparams); + + // copy other parameters + + acceptownpackets = sessparams.AcceptOwnPackets(); + membermultiplier = sessparams.GetSourceTimeoutMultiplier(); + sendermultiplier = sessparams.GetSenderTimeoutMultiplier(); + byemultiplier = sessparams.GetBYETimeoutMultiplier(); + collisionmultiplier = sessparams.GetCollisionTimeoutMultiplier(); + notemultiplier = sessparams.GetNoteTimeoutMultiplier(); + + // Do thread stuff if necessary + +#ifdef RTP_SUPPORT_THREAD + pollthread = 0; + if (usingpollthread) + { + if (!sourcesmutex.IsInitialized()) + { + if (sourcesmutex.Init() < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return ERR_RTP_SESSION_CANTINITMUTEX; + } + } + if (!buildermutex.IsInitialized()) + { + if (buildermutex.Init() < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return ERR_RTP_SESSION_CANTINITMUTEX; + } + } + if (!schedmutex.IsInitialized()) + { + if (schedmutex.Init() < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return ERR_RTP_SESSION_CANTINITMUTEX; + } + } + if (!packsentmutex.IsInitialized()) + { + if (packsentmutex.Init() < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return ERR_RTP_SESSION_CANTINITMUTEX; + } + } + + pollthread = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPPOLLTHREAD) RTPPollThread(*this,rtcpsched); + if (pollthread == 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return ERR_RTP_OUTOFMEM; + } + if ((status = pollthread->Start(rtptrans)) < 0) + { + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + RTPDelete(pollthread,GetMemoryManager()); + packetbuilder.Destroy(); + sources.Clear(); + rtcpbuilder.Destroy(); + return status; + } + } +#endif // RTP_SUPPORT_THREAD + + created = true; + return 0; +} + + +void RTPSession::Destroy() +{ + if (!created) + return; + +#ifdef RTP_SUPPORT_THREAD + if (pollthread) + RTPDelete(pollthread,GetMemoryManager()); +#endif // RTP_SUPPORT_THREAD + + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + rtcpbuilder.Destroy(); + rtcpsched.Reset(); + collisionlist.Clear(); + sources.Clear(); + + std::list<RTCPCompoundPacket *>::const_iterator it; + + for (it = byepackets.begin() ; it != byepackets.end() ; it++) + RTPDelete(*it,GetMemoryManager()); + byepackets.clear(); + + created = false; +} + +void RTPSession::BYEDestroy(const RTPTime &maxwaittime,const void *reason,size_t reasonlength) +{ + if (!created) + return; + + // first, stop the thread so we have full control over all components + +#ifdef RTP_SUPPORT_THREAD + if (pollthread) + RTPDelete(pollthread,GetMemoryManager()); +#endif // RTP_SUPPORT_THREAD + + RTPTime stoptime = RTPTime::CurrentTime(); + stoptime += maxwaittime; + + // add bye packet to the list if we've sent data + + RTCPCompoundPacket *pack; + + if (sentpackets) + { + int status; + + reasonlength = (reasonlength>RTCP_BYE_MAXREASONLENGTH)?RTCP_BYE_MAXREASONLENGTH:reasonlength; + status = rtcpbuilder.BuildBYEPacket(&pack,reason,reasonlength,useSR_BYEifpossible); + if (status >= 0) + { + byepackets.push_back(pack); + + if (byepackets.size() == 1) + rtcpsched.ScheduleBYEPacket(pack->GetCompoundPacketLength()); + } + } + + if (!byepackets.empty()) + { + bool done = false; + + while (!done) + { + RTPTime curtime = RTPTime::CurrentTime(); + + if (curtime >= stoptime) + done = true; + + if (rtcpsched.IsTime()) + { + pack = *(byepackets.begin()); + byepackets.pop_front(); + + rtptrans->SendRTCPData(pack->GetCompoundPacketData(),pack->GetCompoundPacketLength()); + + OnSendRTCPCompoundPacket(pack); // we'll place this after the actual send to avoid tampering + + RTPDelete(pack,GetMemoryManager()); + if (!byepackets.empty()) // more bye packets to send, schedule them + rtcpsched.ScheduleBYEPacket((*(byepackets.begin()))->GetCompoundPacketLength()); + else + done = true; + } + if (!done) + RTPTime::Wait(RTPTime(0,100000)); + } + } + + if (deletetransmitter) + RTPDelete(rtptrans,GetMemoryManager()); + packetbuilder.Destroy(); + rtcpbuilder.Destroy(); + rtcpsched.Reset(); + collisionlist.Clear(); + sources.Clear(); + + // clear rest of bye packets + std::list<RTCPCompoundPacket *>::const_iterator it; + + for (it = byepackets.begin() ; it != byepackets.end() ; it++) + RTPDelete(*it,GetMemoryManager()); + byepackets.clear(); + + created = false; +} + +bool RTPSession::IsActive() +{ + return created; +} + +uint32_t RTPSession::GetLocalSSRC() +{ + if (!created) + return 0; + + uint32_t ssrc; + + BUILDER_LOCK + ssrc = packetbuilder.GetSSRC(); + BUILDER_UNLOCK + return ssrc; +} + +int RTPSession::AddDestination(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->AddDestination(addr); +} + +int RTPSession::DeleteDestination(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->DeleteDestination(addr); +} + +void RTPSession::ClearDestinations() +{ + if (!created) + return; + rtptrans->ClearDestinations(); +} + +bool RTPSession::SupportsMulticasting() +{ + if (!created) + return false; + return rtptrans->SupportsMulticasting(); +} + +int RTPSession::JoinMulticastGroup(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->JoinMulticastGroup(addr); +} + +int RTPSession::LeaveMulticastGroup(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->LeaveMulticastGroup(addr); +} + +void RTPSession::LeaveAllMulticastGroups() +{ + if (!created) + return; + rtptrans->LeaveAllMulticastGroups(); +} + +int RTPSession::SendPacket(const void *data,size_t len) +{ + int status; + + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + BUILDER_LOCK + if ((status = packetbuilder.BuildPacket(data,len)) < 0) + { + BUILDER_UNLOCK + return status; + } + if ((status = rtptrans->SendRTPData(packetbuilder.GetPacket(),packetbuilder.GetPacketLength())) < 0) + { + BUILDER_UNLOCK + return status; + } + BUILDER_UNLOCK + + SOURCES_LOCK + sources.SentRTPPacket(); + SOURCES_UNLOCK + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + return 0; +} + +int RTPSession::SendPacket(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc) +{ + int status; + + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + BUILDER_LOCK + if ((status = packetbuilder.BuildPacket(data,len,pt,mark,timestampinc)) < 0) + { + BUILDER_UNLOCK + return status; + } + if ((status = rtptrans->SendRTPData(packetbuilder.GetPacket(),packetbuilder.GetPacketLength())) < 0) + { + BUILDER_UNLOCK + return status; + } + BUILDER_UNLOCK + + SOURCES_LOCK + sources.SentRTPPacket(); + SOURCES_UNLOCK + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + return 0; +} + +int RTPSession::SendPacketEx(const void *data,size_t len, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords) +{ + int status; + + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + BUILDER_LOCK + if ((status = packetbuilder.BuildPacketEx(data,len,hdrextID,hdrextdata,numhdrextwords)) < 0) + { + BUILDER_UNLOCK + return status; + } + if ((status = rtptrans->SendRTPData(packetbuilder.GetPacket(),packetbuilder.GetPacketLength())) < 0) + { + BUILDER_UNLOCK + return status; + } + BUILDER_UNLOCK + + SOURCES_LOCK + sources.SentRTPPacket(); + SOURCES_UNLOCK + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + return 0; +} + +int RTPSession::SendPacketEx(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords) +{ + int status; + + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + BUILDER_LOCK + if ((status = packetbuilder.BuildPacketEx(data,len,pt,mark,timestampinc,hdrextID,hdrextdata,numhdrextwords)) < 0) + { + BUILDER_UNLOCK + return status; + } + if ((status = rtptrans->SendRTPData(packetbuilder.GetPacket(),packetbuilder.GetPacketLength())) < 0) + { + BUILDER_UNLOCK + return status; + } + BUILDER_UNLOCK + + SOURCES_LOCK + sources.SentRTPPacket(); + SOURCES_UNLOCK + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + return 0; +} + +#ifdef RTP_SUPPORT_SENDAPP + +int RTPSession::SendRTCPAPPPacket(uint8_t subtype, const uint8_t name[4], const void *appdata, size_t appdatalen) +{ + int status; + + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + BUILDER_LOCK + uint32_t ssrc = packetbuilder.GetSSRC(); + BUILDER_UNLOCK + + RTCPCompoundPacketBuilder pb(GetMemoryManager()); + + status = pb.InitBuild(maxpacksize); + + if(status < 0) + return status; + + //first packet in an rtcp compound packet should always be SR or RR + if((status = pb.StartReceiverReport(ssrc)) < 0) + return status; + + //add SDES packet with CNAME item + if ((status = pb.AddSDESSource(ssrc)) < 0) + return status; + + BUILDER_LOCK + size_t owncnamelen = 0; + uint8_t *owncname = rtcpbuilder.GetLocalCNAME(&owncnamelen); + + if ((status = pb.AddSDESNormalItem(RTCPSDESPacket::CNAME,owncname,owncnamelen)) < 0) + { + BUILDER_UNLOCK + return status; + } + BUILDER_UNLOCK + + //add our application specific packet + if((status = pb.AddAPPPacket(subtype, ssrc, name, appdata, appdatalen)) < 0) + return status; + + if((status = pb.EndBuild()) < 0) + return status; + + //send packet + status = rtptrans->SendRTCPData(pb.GetCompoundPacketData(),pb.GetCompoundPacketLength()); + if(status < 0) + return status; + + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + + return pb.GetCompoundPacketLength(); +} + +#endif // RTP_SUPPORT_SENDAPP + +int RTPSession::SetDefaultPayloadType(uint8_t pt) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = packetbuilder.SetDefaultPayloadType(pt); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetDefaultMark(bool m) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = packetbuilder.SetDefaultMark(m); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetDefaultTimestampIncrement(uint32_t timestampinc) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = packetbuilder.SetDefaultTimestampIncrement(timestampinc); + BUILDER_UNLOCK + return status; +} + +int RTPSession::IncrementTimestamp(uint32_t inc) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = packetbuilder.IncrementTimestamp(inc); + BUILDER_UNLOCK + return status; +} + +int RTPSession::IncrementTimestampDefault() +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = packetbuilder.IncrementTimestampDefault(); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetPreTransmissionDelay(const RTPTime &delay) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = rtcpbuilder.SetPreTransmissionDelay(delay); + BUILDER_UNLOCK + return status; +} + +RTPTransmissionInfo *RTPSession::GetTransmissionInfo() +{ + if (!created) + return 0; + return rtptrans->GetTransmissionInfo(); +} + +void RTPSession::DeleteTransmissionInfo(RTPTransmissionInfo *inf) +{ + RTPDelete(inf,GetMemoryManager()); +} + +int RTPSession::Poll() +{ + int status; + + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + if (usingpollthread) + return ERR_RTP_SESSION_USINGPOLLTHREAD; + if ((status = rtptrans->Poll()) < 0) + return status; + return ProcessPolledData(); +} + +int RTPSession::WaitForIncomingData(const RTPTime &delay,bool *dataavailable) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + if (usingpollthread) + return ERR_RTP_SESSION_USINGPOLLTHREAD; + return rtptrans->WaitForIncomingData(delay,dataavailable); +} + +int RTPSession::AbortWait() +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + if (usingpollthread) + return ERR_RTP_SESSION_USINGPOLLTHREAD; + return rtptrans->AbortWait(); +} + +RTPTime RTPSession::GetRTCPDelay() +{ + if (!created) + return RTPTime(0,0); + if (usingpollthread) + return RTPTime(0,0); + + SOURCES_LOCK + SCHED_LOCK + RTPTime t = rtcpsched.GetTransmissionDelay(); + SCHED_UNLOCK + SOURCES_UNLOCK + return t; +} + +int RTPSession::BeginDataAccess() +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + SOURCES_LOCK + return 0; +} + +bool RTPSession::GotoFirstSource() +{ + if (!created) + return false; + return sources.GotoFirstSource(); +} + +bool RTPSession::GotoNextSource() +{ + if (!created) + return false; + return sources.GotoNextSource(); +} + +bool RTPSession::GotoPreviousSource() +{ + if (!created) + return false; + return sources.GotoPreviousSource(); +} + +bool RTPSession::GotoFirstSourceWithData() +{ + if (!created) + return false; + return sources.GotoFirstSourceWithData(); +} + +bool RTPSession::GotoNextSourceWithData() +{ + if (!created) + return false; + return sources.GotoNextSourceWithData(); +} + +bool RTPSession::GotoPreviousSourceWithData() +{ + if (!created) + return false; + return sources.GotoPreviousSourceWithData(); +} + +RTPSourceData *RTPSession::GetCurrentSourceInfo() +{ + if (!created) + return 0; + return sources.GetCurrentSourceInfo(); +} + +RTPSourceData *RTPSession::GetSourceInfo(uint32_t ssrc) +{ + if (!created) + return 0; + return sources.GetSourceInfo(ssrc); +} + +RTPPacket *RTPSession::GetNextPacket() +{ + if (!created) + return 0; + return sources.GetNextPacket(); +} + +void RTPSession::DeletePacket(RTPPacket *p) +{ + RTPDelete(p,GetMemoryManager()); +} + +int RTPSession::EndDataAccess() +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + SOURCES_UNLOCK + return 0; +} + +int RTPSession::SetReceiveMode(RTPTransmitter::ReceiveMode m) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->SetReceiveMode(m); +} + +int RTPSession::AddToIgnoreList(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->AddToIgnoreList(addr); +} + +int RTPSession::DeleteFromIgnoreList(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->DeleteFromIgnoreList(addr); +} + +void RTPSession::ClearIgnoreList() +{ + if (!created) + return; + rtptrans->ClearIgnoreList(); +} + +int RTPSession::AddToAcceptList(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->AddToAcceptList(addr); +} + +int RTPSession::DeleteFromAcceptList(const RTPAddress &addr) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + return rtptrans->DeleteFromAcceptList(addr); +} + +void RTPSession::ClearAcceptList() +{ + if (!created) + return; + rtptrans->ClearAcceptList(); +} + +int RTPSession::SetMaximumPacketSize(size_t s) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + if (s < RTP_MINPACKETSIZE) + return ERR_RTP_SESSION_MAXPACKETSIZETOOSMALL; + + int status; + + if ((status = rtptrans->SetMaximumPacketSize(s)) < 0) + return status; + + BUILDER_LOCK + if ((status = packetbuilder.SetMaximumPacketSize(s)) < 0) + { + BUILDER_UNLOCK + // restore previous max packet size + rtptrans->SetMaximumPacketSize(maxpacksize); + return status; + } + if ((status = rtcpbuilder.SetMaximumPacketSize(s)) < 0) + { + // restore previous max packet size + packetbuilder.SetMaximumPacketSize(maxpacksize); + BUILDER_UNLOCK + rtptrans->SetMaximumPacketSize(maxpacksize); + return status; + } + BUILDER_UNLOCK + maxpacksize = s; + return 0; +} + +int RTPSession::SetSessionBandwidth(double bw) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + SCHED_LOCK + RTCPSchedulerParams p = rtcpsched.GetParameters(); + status = p.SetRTCPBandwidth(bw*controlfragment); + if (status >= 0) + { + rtcpsched.SetParameters(p); + sessionbandwidth = bw; + } + SCHED_UNLOCK + return status; +} + +int RTPSession::SetTimestampUnit(double u) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + + BUILDER_LOCK + status = rtcpbuilder.SetTimestampUnit(u); + BUILDER_UNLOCK + return status; +} + +void RTPSession::SetNameInterval(int count) +{ + if (!created) + return; + BUILDER_LOCK + rtcpbuilder.SetNameInterval(count); + BUILDER_UNLOCK +} + +void RTPSession::SetEMailInterval(int count) +{ + if (!created) + return; + BUILDER_LOCK + rtcpbuilder.SetEMailInterval(count); + BUILDER_UNLOCK +} + +void RTPSession::SetLocationInterval(int count) +{ + if (!created) + return; + BUILDER_LOCK + rtcpbuilder.SetLocationInterval(count); + BUILDER_UNLOCK +} + +void RTPSession::SetPhoneInterval(int count) +{ + if (!created) + return; + BUILDER_LOCK + rtcpbuilder.SetPhoneInterval(count); + BUILDER_UNLOCK +} + +void RTPSession::SetToolInterval(int count) +{ + if (!created) + return; + BUILDER_LOCK + rtcpbuilder.SetToolInterval(count); + BUILDER_UNLOCK +} + +void RTPSession::SetNoteInterval(int count) +{ + if (!created) + return; + BUILDER_LOCK + rtcpbuilder.SetNoteInterval(count); + BUILDER_UNLOCK +} + +int RTPSession::SetLocalName(const void *s,size_t len) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + BUILDER_LOCK + status = rtcpbuilder.SetLocalName(s,len); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetLocalEMail(const void *s,size_t len) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + BUILDER_LOCK + status = rtcpbuilder.SetLocalEMail(s,len); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetLocalLocation(const void *s,size_t len) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + BUILDER_LOCK + status = rtcpbuilder.SetLocalLocation(s,len); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetLocalPhone(const void *s,size_t len) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + BUILDER_LOCK + status = rtcpbuilder.SetLocalPhone(s,len); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetLocalTool(const void *s,size_t len) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + BUILDER_LOCK + status = rtcpbuilder.SetLocalTool(s,len); + BUILDER_UNLOCK + return status; +} + +int RTPSession::SetLocalNote(const void *s,size_t len) +{ + if (!created) + return ERR_RTP_SESSION_NOTCREATED; + + int status; + BUILDER_LOCK + status = rtcpbuilder.SetLocalNote(s,len); + BUILDER_UNLOCK + return status; +} + +int RTPSession::ProcessPolledData() +{ + RTPRawPacket *rawpack; + int status; + + SOURCES_LOCK + while ((rawpack = rtptrans->GetNextPacket()) != 0) + { + sources.ClearOwnCollisionFlag(); + + // since our sources instance also uses the scheduler (analysis of incoming packets) + // we'll lock it + SCHED_LOCK + if ((status = sources.ProcessRawPacket(rawpack,rtptrans,acceptownpackets)) < 0) + { + SCHED_UNLOCK + SOURCES_UNLOCK + RTPDelete(rawpack,GetMemoryManager()); + return status; + } + SCHED_UNLOCK + + if (sources.DetectedOwnCollision()) // collision handling! + { + bool created; + + if ((status = collisionlist.UpdateAddress(rawpack->GetSenderAddress(),rawpack->GetReceiveTime(),&created)) < 0) + { + SOURCES_UNLOCK + RTPDelete(rawpack,GetMemoryManager()); + return status; + } + + if (created) // first time we've encountered this address, send bye packet and + { // change our own SSRC + PACKSENT_LOCK + bool hassentpackets = sentpackets; + PACKSENT_UNLOCK + + if (hassentpackets) + { + // Only send BYE packet if we've actually sent data using this + // SSRC + + RTCPCompoundPacket *rtcpcomppack; + + BUILDER_LOCK + if ((status = rtcpbuilder.BuildBYEPacket(&rtcpcomppack,0,0,useSR_BYEifpossible)) < 0) + { + BUILDER_UNLOCK + SOURCES_UNLOCK + RTPDelete(rawpack,GetMemoryManager()); + return status; + } + BUILDER_UNLOCK + + byepackets.push_back(rtcpcomppack); + if (byepackets.size() == 1) // was the first packet, schedule a BYE packet (otherwise there's already one scheduled) + { + SCHED_LOCK + rtcpsched.ScheduleBYEPacket(rtcpcomppack->GetCompoundPacketLength()); + SCHED_UNLOCK + } + } + // bye packet is built and scheduled, now change our SSRC + // and reset the packet count in the transmitter + + BUILDER_LOCK + uint32_t newssrc = packetbuilder.CreateNewSSRC(sources); + BUILDER_UNLOCK + + PACKSENT_LOCK + sentpackets = false; + PACKSENT_UNLOCK + + // remove old entry in source table and add new one + + if ((status = sources.DeleteOwnSSRC()) < 0) + { + SOURCES_UNLOCK + RTPDelete(rawpack,GetMemoryManager()); + return status; + } + if ((status = sources.CreateOwnSSRC(newssrc)) < 0) + { + SOURCES_UNLOCK + RTPDelete(rawpack,GetMemoryManager()); + return status; + } + } + } + RTPDelete(rawpack,GetMemoryManager()); + } + + SCHED_LOCK + RTPTime d = rtcpsched.CalculateDeterministicInterval(false); + SCHED_UNLOCK + + RTPTime t = RTPTime::CurrentTime(); + double Td = d.GetDouble(); + RTPTime sendertimeout = RTPTime(Td*sendermultiplier); + RTPTime generaltimeout = RTPTime(Td*membermultiplier); + RTPTime byetimeout = RTPTime(Td*byemultiplier); + RTPTime colltimeout = RTPTime(Td*collisionmultiplier); + RTPTime notetimeout = RTPTime(Td*notemultiplier); + + sources.MultipleTimeouts(t,sendertimeout,byetimeout,generaltimeout,notetimeout); + collisionlist.Timeout(t,colltimeout); + + // We'll check if it's time for RTCP stuff + + SCHED_LOCK + bool istime = rtcpsched.IsTime(); + SCHED_UNLOCK + + if (istime) + { + RTCPCompoundPacket *pack; + + // we'll check if there's a bye packet to send, or just a normal packet + + if (byepackets.empty()) + { + BUILDER_LOCK + if ((status = rtcpbuilder.BuildNextPacket(&pack)) < 0) + { + BUILDER_UNLOCK + SOURCES_UNLOCK + return status; + } + BUILDER_UNLOCK + if ((status = rtptrans->SendRTCPData(pack->GetCompoundPacketData(),pack->GetCompoundPacketLength())) < 0) + { + SOURCES_UNLOCK + RTPDelete(pack,GetMemoryManager()); + return status; + } + + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + + OnSendRTCPCompoundPacket(pack); // we'll place this after the actual send to avoid tampering + } + else + { + pack = *(byepackets.begin()); + byepackets.pop_front(); + + if ((status = rtptrans->SendRTCPData(pack->GetCompoundPacketData(),pack->GetCompoundPacketLength())) < 0) + { + SOURCES_UNLOCK + RTPDelete(pack,GetMemoryManager()); + return status; + } + + PACKSENT_LOCK + sentpackets = true; + PACKSENT_UNLOCK + + OnSendRTCPCompoundPacket(pack); // we'll place this after the actual send to avoid tampering + + if (!byepackets.empty()) // more bye packets to send, schedule them + { + SCHED_LOCK + rtcpsched.ScheduleBYEPacket((*(byepackets.begin()))->GetCompoundPacketLength()); + SCHED_UNLOCK + } + } + + SCHED_LOCK + rtcpsched.AnalyseOutgoing(*pack); + SCHED_UNLOCK + + RTPDelete(pack,GetMemoryManager()); + } + SOURCES_UNLOCK + return 0; +} + +int RTPSession::CreateCNAME(uint8_t *buffer,size_t *bufferlength,bool resolve) +{ +#ifndef WIN32 + bool gotlogin = true; +#ifdef RTP_SUPPORT_GETLOGINR + buffer[0] = 0; + if (getlogin_r((char *)buffer,*bufferlength) != 0) + gotlogin = false; + else + { + if (buffer[0] == 0) + gotlogin = false; + } + + if (!gotlogin) // try regular getlogin + { + char *loginname = getlogin(); + if (loginname == 0) + gotlogin = false; + else + strncpy((char *)buffer,loginname,*bufferlength); + } +#else + char *loginname = getlogin(); + if (loginname == 0) + gotlogin = false; + else + strncpy((char *)buffer,loginname,*bufferlength); +#endif // RTP_SUPPORT_GETLOGINR + if (!gotlogin) + { + char *logname = getenv("LOGNAME"); + if (logname == 0) + return ERR_RTP_SESSION_CANTGETLOGINNAME; + strncpy((char *)buffer,logname,*bufferlength); + } +#else // Win32 version + +#ifndef _WIN32_WCE + DWORD len = *bufferlength; + if (!GetUserName((LPTSTR)buffer,&len)) +#if (defined(_MSC_VER) && _MSC_VER >= 1400 ) // Check if we can use the secure strncpy_s + strncpy_s((char *)buffer,*bufferlength,"unknown",_TRUNCATE); +#else + strncpy((char *)buffer,"unknown",*bufferlength); +#endif // Less secure version + +#else + strncpy((char *)buffer,"unknown",*bufferlength); +#endif // _WIN32_WCE + +#endif // WIN32 + buffer[*bufferlength-1] = 0; + + size_t offset = strlen((const char *)buffer); + if (offset < (*bufferlength-1)) + buffer[offset] = (uint8_t)'@'; + offset++; + + size_t buflen2 = *bufferlength-offset; + int status; + + if (resolve) + { + if ((status = rtptrans->GetLocalHostName(buffer+offset,&buflen2)) < 0) + return status; + *bufferlength = buflen2+offset; + } + else + { + char hostname[1024]; + +#if defined(WIN32) && !defined(_WIN32_WCE) && (defined(_MSC_VER) && _MSC_VER >= 1400 ) // Check if we can use the secure strncpy_s + strncpy_s(hostname,1024,"localhost",_TRUNCATE); // just in case gethostname fails +#else + strncpy(hostname,"localhost",1024); // just in case gethostname fails +#endif + gethostname(hostname,1024); +#if defined(WIN32) && !defined(_WIN32_WCE) && (defined(_MSC_VER) && _MSC_VER >= 1400 ) // Check if we can use the secure strncpy_s + strncpy_s((char *)(buffer+offset),buflen2,hostname,_TRUNCATE); +#else + strncpy((char *)(buffer+offset),hostname,buflen2); +#endif + *bufferlength = offset+strlen(hostname); + } + if (*bufferlength > RTCP_SDES_MAXITEMLENGTH) + *bufferlength = RTCP_SDES_MAXITEMLENGTH; + return 0; +} + +#ifdef RTPDEBUG +void RTPSession::DumpSources() +{ + BeginDataAccess(); + std::cout << "----------------------------------------------------------------" << std::endl; + sources.Dump(); + EndDataAccess(); +} + +void RTPSession::DumpTransmitter() +{ + if (created) + rtptrans->Dump(); +} +#endif // RTPDEBUG + diff --git a/src/rtpsession.h b/src/rtpsession.h new file mode 100644 index 0000000..c962b2f --- /dev/null +++ b/src/rtpsession.h @@ -0,0 +1,542 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpsession.h + */ + +#ifndef RTPSESSION_H + +#define RTPSESSION_H + +#include "rtpconfig.h" +#include "rtplibraryversion.h" +#include "rtppacketbuilder.h" +#include "rtpsessionsources.h" +#include "rtptransmitter.h" +#include "rtpcollisionlist.h" +#include "rtcpscheduler.h" +#include "rtcppacketbuilder.h" +#include "rtptimeutilities.h" +#include "rtcpcompoundpacketbuilder.h" +#include "rtpmemoryobject.h" +#include <list> + +#ifdef RTP_SUPPORT_THREAD + #include <jmutex.h> +#endif // RTP_SUPPORT_THREAD + +class RTPTransmitter; +class RTPSessionParams; +class RTPTransmissionParams; +class RTPAddress; +class RTPSourceData; +class RTPPacket; +class RTPPollThread; +class RTPTransmissionInfo; +class RTCPCompoundPacket; +class RTCPPacket; +class RTCPAPPPacket; + +/** High level class for using RTP. + * For most RTP based applications, the RTPSession class will probably be the one to use. It handles + * the RTCP part completely internally, so the user can focus on sending and receiving the actual data. + * \note The RTPSession class is not meant to be thread safe. The user should use some kind of locking + * mechanism to prevent different threads from using the same RTPSession instance. + */ +class RTPSession : public RTPMemoryObject +{ +public: + /** Constructs an RTPSession instance, optionally installing a memory manager. */ + RTPSession(RTPMemoryManager *mgr = 0); + virtual ~RTPSession(); + + /** Creates an RTP session. + * This function creates an RTP session with parameters \c sessparams, which will use a transmitter + * corresponding to \c proto. Parameters for this transmitter can be specified as well. If \c + * proto is of type RTPTransmitter::UserDefinedProto, the NewUserDefinedTransmitter function must + * be implemented. + */ + int Create(const RTPSessionParams &sessparams,const RTPTransmissionParams *transparams = 0, RTPTransmitter::TransmissionProtocol proto = RTPTransmitter::IPv4UDPProto); + + /** Creates an RTP session using \c transmitter as transmission component. + * This function creates an RTP session with parameters \c sessparams, which will use the + * transmission component \c transmitter. Initialization and destruction of the transmitter + * will not be done by the RTPSession class if this Create function is used. This function + * can be useful if you which to reuse the transmission component in another RTPSession + * instance, once the original RTPSession isn't using the transmitter anymore. + */ + int Create(const RTPSessionParams &sessparams,RTPTransmitter *transmitter); + + /** Leaves the session without sending a BYE packet. */ + void Destroy(); + + /** Sends a BYE packet and leaves the session. + * Sends a BYE packet and leaves the session. At most a time \c maxwaittime will be waited to + * send the BYE packet. If this time expires, the session will be left without sending a BYE packet. + * The BYE packet will contain as reason for leaving \c reason with length \c reasonlength. + */ + void BYEDestroy(const RTPTime &maxwaittime,const void *reason,size_t reasonlength); + + /** Returns whether the session has been created or not. */ + bool IsActive(); + + /** Returns our own SSRC. */ + uint32_t GetLocalSSRC(); + + /** Adds \c addr to the list of destinations. */ + int AddDestination(const RTPAddress &addr); + + /** Deletes \c addr from the list of destinations. */ + int DeleteDestination(const RTPAddress &addr); + + /** Clears the list of destinations. */ + void ClearDestinations(); + + /** Returns \c true if multicasting is supported. */ + bool SupportsMulticasting(); + + /** Joins the multicast group specified by \c addr. */ + int JoinMulticastGroup(const RTPAddress &addr); + + /** Leaves the multicast group specified by \c addr. */ + int LeaveMulticastGroup(const RTPAddress &addr); + + /** Leaves all multicast groups. */ + void LeaveAllMulticastGroups(); + + /** Sends the RTP packet with payload \c data which has length \c len. + * Sends the RTP packet with payload \c data which has length \c len. + * The used payload type, marker and timestamp increment will be those that have been set + * using the \c SetDefault member functions. + */ + int SendPacket(const void *data,size_t len); + + /** Sends the RTP packet with payload \c data which has length \c len. + * It will use payload type \c pt, marker \c mark and after the packet has been built, the + * timestamp will be incremented by \c timestampinc. + */ + int SendPacket(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc); + + /** Sends the RTP packet with payload \c data which has length \c len. + * The packet will contain a header extension with identifier \c hdrextID and containing data + * \c hdrextdata. The length of this data is given by \c numhdrextwords and is specified in a + * number of 32-bit words. The used payload type, marker and timestamp increment will be those that + * have been set using the \c SetDefault member functions. + */ + int SendPacketEx(const void *data,size_t len, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords); + + /** Sends the RTP packet with payload \c data which has length \c len. + * It will use payload type \c pt, marker \c mark and after the packet has been built, the + * timestamp will be incremented by \c timestampinc. The packet will contain a header + * extension with identifier \c hdrextID and containing data \c hdrextdata. The length + * of this data is given by \c numhdrextwords and is specified in a number of 32-bit words. + */ + int SendPacketEx(const void *data,size_t len, + uint8_t pt,bool mark,uint32_t timestampinc, + uint16_t hdrextID,const void *hdrextdata,size_t numhdrextwords); +#ifdef RTP_SUPPORT_SENDAPP + /** If sending of RTCP APP packets was enabled at compile time, this function creates a compound packet + * containing an RTCP APP packet and sends it immediately. + * If sending of RTCP APP packets was enabled at compile time, this function creates a compound packet + * containing an RTCP APP packet and sends it immediately. If successful, the function returns the number + * of bytes in the RTCP compound packet. Note that this immediate sending is not compliant with the RTP + * specification, so use with care. + */ + int SendRTCPAPPPacket(uint8_t subtype, const uint8_t name[4], const void *appdata, size_t appdatalen); +#endif // RTP_SUPPORT_SENDAPP + + /** Sets the default payload type for RTP packets to \c pt. */ + int SetDefaultPayloadType(uint8_t pt); + + /** Sets the default marker for RTP packets to \c m. */ + int SetDefaultMark(bool m); + + /** Sets the default value to increment the timestamp with to \c timestampinc. */ + int SetDefaultTimestampIncrement(uint32_t timestampinc); + + /** This function increments the timestamp with the amount given by \c inc. + * This function increments the timestamp with the amount given by \c inc. This can be useful + * if, for example, a packet was not sent because it contained only silence. Then, this function + * should be called to increment the timestamp with the appropriate amount so that the next packets + * will still be played at the correct time at other hosts. + */ + int IncrementTimestamp(uint32_t inc); + + /** This function increments the timestamp with the amount given set by the SetDefaultTimestampIncrement + * member function. + * This function increments the timestamp with the amount given set by the SetDefaultTimestampIncrement + * member function. This can be useful if, for example, a packet was not sent because it contained only silence. + * Then, this function should be called to increment the timestamp with the appropriate amount so that the next + * packets will still be played at the correct time at other hosts. + */ + int IncrementTimestampDefault(); + + /** This function allows you to inform the library about the delay between sampling the first + * sample of a packet and sending the packet. + * This function allows you to inform the library about the delay between sampling the first + * sample of a packet and sending the packet. This delay is taken into account when calculating the + * relation between RTP timestamp and wallclock time, used for inter-media synchronization. + */ + int SetPreTransmissionDelay(const RTPTime &delay); + + /** This function returns an instance of a subclass of RTPTransmissionInfo which will give some + * additional information about the transmitter (a list of local IP addresses for example). + * This function returns an instance of a subclass of RTPTransmissionInfo which will give some + * additional information about the transmitter (a list of local IP addresses for example). The user + * has to free the returned instance when it is no longer needed, preferably using the DeleteTransmissionInfo + * function. + */ + RTPTransmissionInfo *GetTransmissionInfo(); + + /** Frees the memory used by the transmission information \c inf. */ + void DeleteTransmissionInfo(RTPTransmissionInfo *inf); + + /** If you're not using the poll thread, this function must be called regularly to process incoming data + * and to send RTCP data when necessary. + */ + int Poll(); + + /** Waits at most a time \c delay until incoming data has been detected. + * Waits at most a time \c delay until incoming data has been detected. Only works when you're not + * using the poll thread. If \c dataavailable is not \c NULL, it should be set to \c true if data + * was actually read and to \c false otherwise. + */ + int WaitForIncomingData(const RTPTime &delay,bool *dataavailable = 0); + + /** If the previous function has been called, this one aborts the waiting (only works when you're not + * using the poll thread). + */ + int AbortWait(); + + /** Returns the time interval after which an RTCP compound packet may have to be sent (only works when + * you're not using the poll thread. + */ + RTPTime GetRTCPDelay(); + + /** The following member functions (till EndDataAccess}) need to be accessed between a call + * to BeginDataAccess and EndDataAccess. + * The BeginDataAccess function makes sure that the poll thread won't access the source table + * at the same time that you're using it. When the EndDataAccess is called, the lock on the + * source table is freed again. + */ + int BeginDataAccess(); + + /** Starts the iteration over the participants by going to the first member in the table. + * Starts the iteration over the participants by going to the first member in the table. + * If a member was found, the function returns \c true, otherwise it returns \c false. + */ + bool GotoFirstSource(); + + /** Sets the current source to be the next source in the table. + * Sets the current source to be the next source in the table. If we're already at the last + * source, the function returns \c false, otherwise it returns \c true. + */ + bool GotoNextSource(); + + /** Sets the current source to be the previous source in the table. + * Sets the current source to be the previous source in the table. If we're at the first source, + * the function returns \c false, otherwise it returns \c true. + */ + bool GotoPreviousSource(); + + /** Sets the current source to be the first source in the table which has RTPPacket instances + * that we haven't extracted yet. + * Sets the current source to be the first source in the table which has RTPPacket instances + * that we haven't extracted yet. If no such member was found, the function returns \c false, + * otherwise it returns \c true. + */ + bool GotoFirstSourceWithData(); + + /** Sets the current source to be the next source in the table which has RTPPacket instances + * that we haven't extracted yet. + * Sets the current source to be the next source in the table which has RTPPacket instances + * that we haven't extracted yet. If no such member was found, the function returns \c false, + * otherwise it returns \c true. + */ + bool GotoNextSourceWithData(); + + /** Sets the current source to be the previous source in the table which has RTPPacket + * instances that we haven't extracted yet. + * Sets the current source to be the previous source in the table which has RTPPacket + * instances that we haven't extracted yet. If no such member was found, the function returns \c false, + * otherwise it returns \c true. + */ + bool GotoPreviousSourceWithData(); + + /** Returns the \c RTPSourceData instance for the currently selected participant. */ + RTPSourceData *GetCurrentSourceInfo(); + + /** Returns the \c RTPSourceData instance for the participant identified by \c ssrc, + * or NULL if no such entry exists. + */ + RTPSourceData *GetSourceInfo(uint32_t ssrc); + + /** Extracts the next packet from the received packets queue of the current participant, + * or NULL if no more packets are available. + * Extracts the next packet from the received packets queue of the current participant, + * or NULL if no more packets are available. When the packet is no longer needed, its + * memory should be freed using the DeletePacket member function. + */ + RTPPacket *GetNextPacket(); + + /** Frees the memory used by \c p. */ + void DeletePacket(RTPPacket *p); + + /** See BeginDataAccess. */ + int EndDataAccess(); + + /** Sets the receive mode to \c m. + * Sets the receive mode to \c m. Note that when the receive mode is changed, the list of + * addresses to be ignored ot accepted will be cleared. + */ + int SetReceiveMode(RTPTransmitter::ReceiveMode m); + + /** Adds \c addr to the list of addresses to ignore. */ + int AddToIgnoreList(const RTPAddress &addr); + + /** Deletes \c addr from the list of addresses to ignore. */ + int DeleteFromIgnoreList(const RTPAddress &addr); + + /** Clears the list of addresses to ignore. */ + void ClearIgnoreList(); + + /** Adds \c addr to the list of addresses to accept. */ + int AddToAcceptList(const RTPAddress &addr); + + /** Deletes \c addr from the list of addresses to accept. */ + int DeleteFromAcceptList(const RTPAddress &addr); + + /** Clears the list of addresses to accept. */ + void ClearAcceptList(); + + /** Sets the maximum allowed packet size to \c s. */ + int SetMaximumPacketSize(size_t s); + + /** Sets the session bandwidth to \c bw, which is specified in bytes per second. */ + int SetSessionBandwidth(double bw); + + /** Sets the timestamp unit for our own data. + * Sets the timestamp unit for our own data. The timestamp unit is defined as a time interval in + * seconds divided by the corresponding timestamp interval. For example, for 8000 Hz audio, the + * timestamp unit would typically be 1/8000. Since this value is initially set to an illegal value, + * the user must set this to an allowed value to be able to create a session. + */ + int SetTimestampUnit(double u); + + /** Sets the RTCP interval for the SDES name item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES name item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetNameInterval(int count); + + /** Sets the RTCP interval for the SDES e-mail item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES e-mail item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetEMailInterval(int count); + + /** Sets the RTCP interval for the SDES location item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES location item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetLocationInterval(int count); + + /** Sets the RTCP interval for the SDES phone item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES phone item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetPhoneInterval(int count); + + /** Sets the RTCP interval for the SDES tool item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES tool item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetToolInterval(int count); + + /** Sets the RTCP interval for the SDES note item. + * After all possible sources in the source table have been processed, the class will check if other + * SDES items need to be sent. If \c count is zero or negative, nothing will happen. If \c count + * is positive, an SDES note item will be added after the sources in the source table have been + * processed \c count times. + */ + void SetNoteInterval(int count); + + /** Sets the SDES name item for the local participant to the value \c s with length \c len. */ + int SetLocalName(const void *s,size_t len); + + /** Sets the SDES e-mail item for the local participant to the value \c s with length \c len. */ + int SetLocalEMail(const void *s,size_t len); + + /** Sets the SDES location item for the local participant to the value \c s with length \c len. */ + int SetLocalLocation(const void *s,size_t len); + + /** Sets the SDES phone item for the local participant to the value \c s with length \c len. */ + int SetLocalPhone(const void *s,size_t len); + + /** Sets the SDES tool item for the local participant to the value \c s with length \c len. */ + int SetLocalTool(const void *s,size_t len); + + /** Sets the SDES note item for the local participant to the value \c s with length \c len. */ + int SetLocalNote(const void *s,size_t len); + +#ifdef RTPDEBUG + void DumpSources(); + void DumpTransmitter(); +#endif // RTPDEBUG +protected: + /** Allocate a user defined transmitter. + * In case you specified in the Create function that you want to use a + * user defined transmitter, you should override this function. The RTPTransmitter + * instance returned by this function will then be used to send and receive RTP and + * RTCP packets. Note that when the session is destroyed, this RTPTransmitter + * instance will be destroyed as well. + */ + virtual RTPTransmitter *NewUserDefinedTransmitter() { return 0; } + + /** Is called when an incoming RTCP packet is about to be processed. */ + virtual void OnRTPPacket(RTPPacket *pack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an incoming RTCP packet is about to be processed. */ + virtual void OnRTCPCompoundPacket(RTCPCompoundPacket *pack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an SSRC collision was detected. + * Is called when an SSRC collision was detected. The instance \c srcdat is the one present in + * the table, the address \c senderaddress is the one that collided with one of the addresses + * and \c isrtp indicates against which address of \c srcdat the check failed. + */ + virtual void OnSSRCCollision(RTPSourceData *srcdat,const RTPAddress *senderaddress,bool isrtp) { } + + /** Is called when another CNAME was received than the one already present for source \c srcdat. */ + virtual void OnCNAMECollision(RTPSourceData *srcdat,const RTPAddress *senderaddress, + const uint8_t *cname,size_t cnamelength) { } + + /** Is called when a new entry \c srcdat is added to the source table. */ + virtual void OnNewSource(RTPSourceData *srcdat) { } + + /** Is called when the entry \c srcdat is about to be deleted from the source table. */ + virtual void OnRemoveSource(RTPSourceData *srcdat) { } + + /** Is called when participant \c srcdat is timed out. */ + virtual void OnTimeout(RTPSourceData *srcdat) { } + + /** Is called when participant \c srcdat is timed after having sent a BYE packet. */ + virtual void OnBYETimeout(RTPSourceData *srcdat) { } + + /** Is called when an RTCP APP packet \c apppacket has been received at time \c receivetime + * from address \c senderaddress. + */ + virtual void OnAPPPacket(RTCPAPPPacket *apppacket,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an unknown RTCP packet type was detected. */ + virtual void OnUnknownPacketType(RTCPPacket *rtcppack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an unknown packet format for a known packet type was detected. */ + virtual void OnUnknownPacketFormat(RTCPPacket *rtcppack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when the SDES NOTE item for source \c srcdat has been timed out. */ + virtual void OnNoteTimeout(RTPSourceData *srcdat) { } + + /** Is called when a BYE packet has been processed for source \c srcdat. */ + virtual void OnBYEPacket(RTPSourceData *srcdat) { } + + /** Is called when an RTCP compound packet has just been sent (useful to inspect outgoing RTCP data). */ + virtual void OnSendRTCPCompoundPacket(RTCPCompoundPacket *pack) { } +#ifdef RTP_SUPPORT_THREAD + /** Is called when error \c errcode was detected in the poll thread. */ + virtual void OnPollThreadError(int errcode) { } + + /** Is called each time the poll thread loops. + * Is called each time the poll thread loops. This happens when incoming data was + * detected or when it's time to send an RTCP compound packet. + */ + virtual void OnPollThreadStep() { } +#endif // RTP_SUPPORT_THREAD +private: + int InternalCreate(const RTPSessionParams &sessparams); + int CreateCNAME(uint8_t *buffer,size_t *bufferlength,bool resolve); + int ProcessPolledData(); + int ProcessRTCPCompoundPacket(RTCPCompoundPacket &rtcpcomppack,RTPRawPacket *pack); + + RTPTransmitter *rtptrans; + bool created; + bool deletetransmitter; + bool usingpollthread; + bool acceptownpackets; + bool useSR_BYEifpossible; + size_t maxpacksize; + double sessionbandwidth; + double controlfragment; + double sendermultiplier; + double byemultiplier; + double membermultiplier; + double collisionmultiplier; + double notemultiplier; + bool sentpackets; + + RTPSessionSources sources; + RTPPacketBuilder packetbuilder; + RTCPScheduler rtcpsched; + RTCPPacketBuilder rtcpbuilder; + RTPCollisionList collisionlist; + + std::list<RTCPCompoundPacket *> byepackets; + +#ifdef RTP_SUPPORT_THREAD + RTPPollThread *pollthread; + JMutex sourcesmutex,buildermutex,schedmutex,packsentmutex; + + friend class RTPPollThread; +#endif // RTP_SUPPORT_THREAD + friend class RTPSessionSources; + friend class RTCPSessionPacketBuilder; +}; + +#endif // RTPSESSION_H + diff --git a/src/rtpsessionparams.cpp b/src/rtpsessionparams.cpp new file mode 100644 index 0000000..b6ffab5 --- /dev/null +++ b/src/rtpsessionparams.cpp @@ -0,0 +1,80 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpconfig.h" +#include "rtpsessionparams.h" +#include "rtpdefines.h" +#include "rtperrors.h" + +#include "rtpdebug.h" + +RTPSessionParams::RTPSessionParams() : mininterval(0,0) +{ +#ifdef RTP_SUPPORT_THREAD + usepollthread = true; +#else + usepollthread = false; +#endif // RTP_SUPPORT_THREAD + maxpacksize = RTP_DEFAULTPACKETSIZE; + receivemode = RTPTransmitter::AcceptAll; + acceptown = false; + owntsunit = -1; // The user will have to set it to the correct value himself + resolvehostname = false; +#ifdef RTP_SUPPORT_PROBATION + probationtype = RTPSources::ProbationStore; +#endif // RTP_SUPPORT_PROBATION + + mininterval = RTPTime(RTCP_DEFAULTMININTERVAL); + sessionbandwidth = RTP_DEFAULTSESSIONBANDWIDTH; + controlfrac = RTCP_DEFAULTBANDWIDTHFRACTION; + senderfrac = RTCP_DEFAULTSENDERFRACTION; + usehalfatstartup = RTCP_DEFAULTHALFATSTARTUP; + immediatebye = RTCP_DEFAULTIMMEDIATEBYE; + SR_BYE = RTCP_DEFAULTSRBYE; + + sendermultiplier = RTP_SENDERTIMEOUTMULTIPLIER; + generaltimeoutmultiplier = RTP_MEMBERTIMEOUTMULTIPLIER; + byetimeoutmultiplier = RTP_BYETIMEOUTMULTIPLIER; + collisionmultiplier = RTP_COLLISIONTIMEOUTMULTIPLIER; + notemultiplier = RTP_NOTETTIMEOUTMULTIPLIER; +} + +int RTPSessionParams::SetUsePollThread(bool usethread) +{ +#ifndef RTP_SUPPORT_THREAD + return ERR_RTP_NOTHREADSUPPORT; +#else + usepollthread = usethread; + return 0; +#endif // RTP_SUPPORT_THREAD +} + diff --git a/src/rtpsessionparams.h b/src/rtpsessionparams.h new file mode 100644 index 0000000..1e65bda --- /dev/null +++ b/src/rtpsessionparams.h @@ -0,0 +1,220 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpsessionparams.h + */ + +#ifndef RTPSESSIONPARAMS_H + +#define RTPSESSIONPARAMS_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#include "rtptransmitter.h" +#include "rtptimeutilities.h" +#include "rtpsources.h" + +/** Describes the parameters for to be used by an RTPSession instance. + * Describes the parameters for to be used by an RTPSession instance. Note that the own timestamp + * unit must be set to a valid number, otherwise the session can't be created. + */ +class RTPSessionParams +{ +public: + RTPSessionParams(); + + /** If \c usethread is \c true, the session will use a poll thread to automatically process incoming + * data and to send RTCP packets when necessary. + */ + int SetUsePollThread(bool usethread); + + /** Returns whether the session should use a poll thread or not (default is \c true). */ + bool IsUsingPollThread() const { return usepollthread; } + + /** Sets the maximum allowed packet size for the session. */ + void SetMaximumPacketSize(size_t max) { maxpacksize = max; } + + /** Returns the maximum allowed packet size (default is 1400 bytes). */ + size_t GetMaximumPacketSize() const { return maxpacksize; } + + /** If the argument is \c true, the session should accept its own packets and store + * them accordingly in the source table. + */ + void SetAcceptOwnPackets(bool accept) { acceptown = accept; } + + /** Returns \c true if the session should accept its own packets (default is \c false). */ + bool AcceptOwnPackets() const { return acceptown; } + + /** Sets the receive mode to be used by the session. */ + void SetReceiveMode(RTPTransmitter::ReceiveMode recvmode) { receivemode = recvmode; } + + /** Sets the receive mode to be used by the session (default is: accept all packets). */ + RTPTransmitter::ReceiveMode GetReceiveMode() const { return receivemode; } + + /** Sets the timestamp unit for our own data. + * Sets the timestamp unit for our own data. The timestamp unit is defined as a time interval in + * seconds divided by the corresponding timestamp interval. For example, for 8000 Hz audio, the + * timestamp unit would typically be 1/8000. Since this value is initially set to an illegal value, + * the user must set this to an allowed value to be able to create a session. + */ + void SetOwnTimestampUnit(double tsunit) { owntsunit = tsunit; } + + /** Returns the currently set timestamp unit. */ + double GetOwnTimestampUnit() const { return owntsunit; } + + /** Sets a flag indicating if a DNS lookup should be done to determine our hostname (to construct a CNAME item). + * If \c v is set to \c true, the session will ask the transmitter to find a host name based upon the IP + * addresses in its list of local IP addresses. If set to \c false, a call to \c gethostname or something + * similar will be used to find the local hostname. Note that the first method might take some time. + */ + void SetResolveLocalHostname(bool v) { resolvehostname = v; } + + /** Returns whether the local hostname should be determined from the transmitter's list of local IP addresses + * or not (default is \c false). + */ + bool GetResolveLocalHostname() const { return resolvehostname; } +#ifdef RTP_SUPPORT_PROBATION + /** If probation support is enabled, this function sets the probation type to be used. */ + void SetProbationType(RTPSources::ProbationType probtype) { probationtype = probtype; } + + /** Returns the probation type which will be used (default is RTPSources::ProbationStore). */ + RTPSources::ProbationType GetProbationType() const { return probationtype; } +#endif // RTP_SUPPORT_PROBATION + + /** Sets the session bandwidth in bytes per second. */ + void SetSessionBandwidth(double sessbw) { sessionbandwidth = sessbw; } + + /** Returns the session bandwidth in bytes per second (default is 10000 bytes per second). */ + double GetSessionBandwidth() const { return sessionbandwidth; } + + /** Sets the fraction of the session bandwidth to be used for control traffic. */ + void SetControlTrafficFraction(double frac) { controlfrac = frac; } + + /** Returns the fraction of the session bandwidth that will be used for control traffic (default is 5%). */ + double GetControlTrafficFraction() const { return controlfrac; } + + /** Sets the minimum fraction of the control traffic that will be used by senders. */ + void SetSenderControlBandwidthFraction(double frac) { senderfrac = frac; } + + /** Returns the minimum fraction of the control traffic that will be used by senders (default is 25%). */ + double GetSenderControlBandwidthFraction() const { return senderfrac; } + + /** Set the minimal time interval between sending RTCP packets. */ + void SetMinimumRTCPTransmissionInterval(const RTPTime &t) { mininterval = t; } + + /** Returns the minimal time interval between sending RTCP packets (default is 5 seconds). */ + RTPTime GetMinimumRTCPTransmissionInterval() const { return mininterval; } + + /** If \c usehalf is set to \c true, the session will only wait half of the calculated RTCP + * interval before sending its first RTCP packet. + */ + void SetUseHalfRTCPIntervalAtStartup(bool usehalf) { usehalfatstartup = usehalf; } + + /** Returns whether the session will only wait half of the calculated RTCP interval before sending its + * first RTCP packet or not (default is \c true). + */ + bool GetUseHalfRTCPIntervalAtStartup() const { return usehalfatstartup; } + + /** If \c v is \c true, the session will send a BYE packet immediately if this is allowed. */ + void SetRequestImmediateBYE(bool v) { immediatebye = v; } + + /** Returns whether the session should send a BYE packet immediately (if allowed) or not (default is \c true). */ + bool GetRequestImmediateBYE() const { return immediatebye; } + + /** When sending a BYE packet, this indicates whether it will be part of an RTCP compound packet + * that begins with a sender report (if allowed) or a receiver report. + */ + void SetSenderReportForBYE(bool v) { SR_BYE = v; } + + /** Returns \c true if a BYE packet will be sent in an RTCP compound packet which starts with a + * sender report; if a receiver report will be used, the function returns \c false (default is \c true). + */ + bool GetSenderReportForBYE() const { return SR_BYE; } + + /** Sets the multiplier to be used when timing out senders. */ + void SetSenderTimeoutMultiplier(double m) { sendermultiplier = m; } + + /** Returns the multiplier to be used when timing out senders (default is 2). */ + double GetSenderTimeoutMultiplier() const { return sendermultiplier; } + + /** Sets the multiplier to be used when timing out members. */ + void SetSourceTimeoutMultiplier(double m) { generaltimeoutmultiplier = m; } + + /** Returns the multiplier to be used when timing out members (default is 5). */ + double GetSourceTimeoutMultiplier() const { return generaltimeoutmultiplier; } + + /** Sets the multiplier to be used when timing out a member after it has sent a BYE packet. */ + void SetBYETimeoutMultiplier(double m) { byetimeoutmultiplier = m; } + + /** Returns the multiplier to be used when timing out a member after it has sent a BYE packet (default is 1). */ + double GetBYETimeoutMultiplier() const { return byetimeoutmultiplier; } + + /** Sets the multiplier to be used when timing out entries in the collision table. */ + void SetCollisionTimeoutMultiplier(double m) { collisionmultiplier = m; } + + /** Returns the multiplier to be used when timing out entries in the collision table (default is 10). */ + double GetCollisionTimeoutMultiplier() const { return collisionmultiplier; } + + /** Sets the multiplier to be used when timing out SDES NOTE information. */ + void SetNoteTimeoutMultiplier(double m) { notemultiplier = m; } + + /** Returns the multiplier to be used when timing out SDES NOTE information (default is 25). */ + double GetNoteTimeoutMultiplier() const { return notemultiplier; } +private: + bool acceptown; + bool usepollthread; + size_t maxpacksize; + double owntsunit; + RTPTransmitter::ReceiveMode receivemode; + bool resolvehostname; +#ifdef RTP_SUPPORT_PROBATION + RTPSources::ProbationType probationtype; +#endif // RTP_SUPPORT_PROBATION + + double sessionbandwidth; + double controlfrac; + double senderfrac; + RTPTime mininterval; + bool usehalfatstartup; + bool immediatebye; + bool SR_BYE; + + double sendermultiplier; + double generaltimeoutmultiplier; + double byetimeoutmultiplier; + double collisionmultiplier; + double notemultiplier; +}; + +#endif // RTPSESSIONPARAMS_H + diff --git a/src/rtpsessionsources.cpp b/src/rtpsessionsources.cpp new file mode 100644 index 0000000..6a6e5f6 --- /dev/null +++ b/src/rtpsessionsources.cpp @@ -0,0 +1,109 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpsessionsources.h" +#include "rtpsession.h" +#include "rtpsourcedata.h" + +#include "rtpdebug.h" + +void RTPSessionSources::OnRTPPacket(RTPPacket *pack,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + rtpsession.OnRTPPacket(pack,receivetime,senderaddress); +} + +void RTPSessionSources::OnRTCPCompoundPacket(RTCPCompoundPacket *pack,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + if (senderaddress != 0) // don't analyse own RTCP packets again (they're already analysed on their way out) + rtpsession.rtcpsched.AnalyseIncoming(*pack); + rtpsession.OnRTCPCompoundPacket(pack,receivetime,senderaddress); +} + +void RTPSessionSources::OnSSRCCollision(RTPSourceData *srcdat,const RTPAddress *senderaddress,bool isrtp) +{ + if (srcdat->IsOwnSSRC()) + owncollision = true; + rtpsession.OnSSRCCollision(srcdat,senderaddress,isrtp); +} + +void RTPSessionSources::OnCNAMECollision(RTPSourceData *srcdat,const RTPAddress *senderaddress,const uint8_t *cname,size_t cnamelength) +{ + rtpsession.OnCNAMECollision(srcdat,senderaddress,cname,cnamelength); +} + +void RTPSessionSources::OnNewSource(RTPSourceData *srcdat) +{ + rtpsession.OnNewSource(srcdat); +} + +void RTPSessionSources::OnRemoveSource(RTPSourceData *srcdat) +{ + rtpsession.OnRemoveSource(srcdat); +} + +void RTPSessionSources::OnTimeout(RTPSourceData *srcdat) +{ + rtpsession.rtcpsched.ActiveMemberDecrease(); + rtpsession.OnTimeout(srcdat); +} + +void RTPSessionSources::OnBYETimeout(RTPSourceData *srcdat) +{ + rtpsession.OnBYETimeout(srcdat); +} + +void RTPSessionSources::OnBYEPacket(RTPSourceData *srcdat) +{ + rtpsession.rtcpsched.ActiveMemberDecrease(); + rtpsession.OnBYEPacket(srcdat); +} + +void RTPSessionSources::OnAPPPacket(RTCPAPPPacket *apppacket,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + rtpsession.OnAPPPacket(apppacket,receivetime,senderaddress); +} + +void RTPSessionSources::OnUnknownPacketType(RTCPPacket *rtcppack,const RTPTime &receivetime, const RTPAddress *senderaddress) +{ + rtpsession.OnUnknownPacketType(rtcppack,receivetime,senderaddress); +} + +void RTPSessionSources::OnUnknownPacketFormat(RTCPPacket *rtcppack,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + rtpsession.OnUnknownPacketFormat(rtcppack,receivetime,senderaddress); +} + +void RTPSessionSources::OnNoteTimeout(RTPSourceData *srcdat) +{ + rtpsession.OnNoteTimeout(srcdat); +} + diff --git a/src/rtpsessionsources.h b/src/rtpsessionsources.h new file mode 100644 index 0000000..ad5a52b --- /dev/null +++ b/src/rtpsessionsources.h @@ -0,0 +1,79 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpsessionsources.h + */ + +#ifndef RTPSESSIONSOURCES_H + +#define RTPSESSIONSOURCES_H + +#include "rtpconfig.h" +#include "rtpsources.h" + +class RTPSession; + +class RTPSessionSources : public RTPSources +{ +public: + RTPSessionSources(RTPSession &sess,RTPMemoryManager *mgr) : RTPSources(RTPSources::ProbationStore,mgr),rtpsession(sess) + { owncollision = false; } + ~RTPSessionSources() { } + void ClearOwnCollisionFlag() { owncollision = false; } + bool DetectedOwnCollision() const { return owncollision; } +private: + void OnRTPPacket(RTPPacket *pack,const RTPTime &receivetime, + const RTPAddress *senderaddress); + void OnRTCPCompoundPacket(RTCPCompoundPacket *pack,const RTPTime &receivetime, + const RTPAddress *senderaddress); + void OnSSRCCollision(RTPSourceData *srcdat,const RTPAddress *senderaddress,bool isrtp); + void OnCNAMECollision(RTPSourceData *srcdat,const RTPAddress *senderaddress, + const uint8_t *cname,size_t cnamelength); + void OnNewSource(RTPSourceData *srcdat); + void OnRemoveSource(RTPSourceData *srcdat); + void OnTimeout(RTPSourceData *srcdat); + void OnBYETimeout(RTPSourceData *srcdat); + void OnBYEPacket(RTPSourceData *srcdat); + void OnAPPPacket(RTCPAPPPacket *apppacket,const RTPTime &receivetime, + const RTPAddress *senderaddress); + void OnUnknownPacketType(RTCPPacket *rtcppack,const RTPTime &receivetime, + const RTPAddress *senderaddress); + void OnUnknownPacketFormat(RTCPPacket *rtcppack,const RTPTime &receivetime, + const RTPAddress *senderaddress); + void OnNoteTimeout(RTPSourceData *srcdat); + + RTPSession &rtpsession; + bool owncollision; +}; + +#endif // RTPSESSIONSOURCES_H diff --git a/src/rtpsourcedata.cpp b/src/rtpsourcedata.cpp new file mode 100644 index 0000000..3ed5ad3 --- /dev/null +++ b/src/rtpsourcedata.cpp @@ -0,0 +1,446 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpsourcedata.h" +#include "rtpdefines.h" +#include "rtpaddress.h" +#include "rtpmemorymanager.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 + +#ifdef RTPDEBUG + #include <iostream> + #include <string> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +#define ACCEPTPACKETCODE \ + *accept = true; \ + \ + sentdata = true; \ + packetsreceived++; \ + numnewpackets++; \ + \ + if (pack->GetExtendedSequenceNumber() == 0) \ + { \ + baseseqnr = 0x0000FFFF; \ + numcycles = 0x00010000; \ + } \ + else \ + baseseqnr = pack->GetExtendedSequenceNumber() - 1; \ + \ + exthighseqnr = baseseqnr + 1; \ + prevpacktime = receivetime; \ + prevexthighseqnr = baseseqnr; \ + savedextseqnr = baseseqnr; \ + \ + pack->SetExtendedSequenceNumber(exthighseqnr); \ + \ + prevtimestamp = pack->GetTimestamp(); \ + lastmsgtime = prevpacktime; \ + if (!ownpacket) /* for own packet, this value is set on an outgoing packet */ \ + lastrtptime = prevpacktime; + +void RTPSourceStats::ProcessPacket(RTPPacket *pack,const RTPTime &receivetime,double tsunit, + bool ownpacket,bool *accept,bool applyprobation,bool *onprobation) +{ + // Note that the sequence number in the RTP packet is still just the + // 16 bit number contained in the RTP header + + *onprobation = false; + + if (!sentdata) // no valid packets received yet + { +#ifdef RTP_SUPPORT_PROBATION + if (applyprobation) + { + bool acceptpack = false; + + if (probation) + { + uint16_t pseq; + uint32_t pseq2; + + pseq = prevseqnr; + pseq++; + pseq2 = (uint32_t)pseq; + if (pseq2 == pack->GetExtendedSequenceNumber()) // ok, its the next expected packet + { + prevseqnr = (uint16_t)pack->GetExtendedSequenceNumber(); + probation--; + if (probation == 0) // probation over + acceptpack = true; + else + *onprobation = true; + } + else // not next packet + { + probation = RTP_PROBATIONCOUNT; + prevseqnr = (uint16_t)pack->GetExtendedSequenceNumber(); + *onprobation = true; + } + } + else // first packet received with this SSRC ID, start probation + { + probation = RTP_PROBATIONCOUNT; + prevseqnr = (uint16_t)pack->GetExtendedSequenceNumber(); + *onprobation = true; + } + + if (acceptpack) + { + ACCEPTPACKETCODE + } + else + { + *accept = false; + lastmsgtime = receivetime; + } + } + else // No probation + { + ACCEPTPACKETCODE + } +#else // No compiled-in probation support + + ACCEPTPACKETCODE + +#endif // RTP_SUPPORT_PROBATION + } + else // already got packets + { + uint16_t maxseq16; + uint32_t extseqnr; + + // Adjust max extended sequence number and set extende seq nr of packet + + *accept = true; + packetsreceived++; + numnewpackets++; + + maxseq16 = (uint16_t)(exthighseqnr&0x0000FFFF); + if (pack->GetExtendedSequenceNumber() >= maxseq16) + { + extseqnr = numcycles+pack->GetExtendedSequenceNumber(); + exthighseqnr = extseqnr; + } + else + { + uint16_t dif1,dif2; + + dif1 = ((uint16_t)pack->GetExtendedSequenceNumber()); + dif1 -= maxseq16; + dif2 = maxseq16; + dif2 -= ((uint16_t)pack->GetExtendedSequenceNumber()); + if (dif1 < dif2) + { + numcycles += 0x00010000; + extseqnr = numcycles+pack->GetExtendedSequenceNumber(); + exthighseqnr = extseqnr; + } + else + extseqnr = numcycles+pack->GetExtendedSequenceNumber(); + } + + pack->SetExtendedSequenceNumber(extseqnr); + + // Calculate jitter + + if (tsunit > 0) + { + RTPTime curtime = receivetime; + double diffts1,diffts2,diff; + + curtime -= prevpacktime; + diffts1 = curtime.GetDouble()/tsunit; + diffts2 = (double)pack->GetTimestamp() - (double)prevtimestamp; + diff = diffts1 - diffts2; + if (diff < 0) + diff = -diff; + diff -= djitter; + diff /= 16.0; + djitter += diff; + jitter = (uint32_t)djitter; + } + else + { + djitter = 0; + jitter = 0; + } + + prevpacktime = receivetime; + prevtimestamp = pack->GetTimestamp(); + lastmsgtime = prevpacktime; + if (!ownpacket) // for own packet, this value is set on an outgoing packet + lastrtptime = prevpacktime; + } +} + +RTPSourceData::RTPSourceData(uint32_t s, RTPMemoryManager *mgr) : RTPMemoryObject(mgr),SDESinf(mgr),byetime(0,0) +{ + ssrc = s; + issender = false; + iscsrc = false; + timestampunit = -1; + receivedbye = false; + byereason = 0; + byereasonlen = 0; + rtpaddr = 0; + rtcpaddr = 0; + ownssrc = false; + validated = false; + processedinrtcp = false; + isrtpaddrset = false; + isrtcpaddrset = false; +} + +RTPSourceData::~RTPSourceData() +{ + FlushPackets(); + if (byereason) + RTPDeleteByteArray(byereason,GetMemoryManager()); + if (rtpaddr) + RTPDelete(rtpaddr,GetMemoryManager()); + if (rtcpaddr) + RTPDelete(rtcpaddr,GetMemoryManager()); +} + +double RTPSourceData::INF_GetEstimatedTimestampUnit() const +{ + if (!SRprevinf.HasInfo()) + return -1.0; + + RTPTime t1 = RTPTime(SRinf.GetNTPTimestamp()); + RTPTime t2 = RTPTime(SRprevinf.GetNTPTimestamp()); + if ((t1.GetSeconds() == 0 && t1.GetMicroSeconds() == 0) || + (t2.GetSeconds() == 0 && t2.GetMicroSeconds() == 0)) // one of the times couldn't be calculated + return -1.0; + + if (t1 < t2) + return -1.0; + + t1 -= t2; // get the time difference + + uint32_t tsdiff = SRinf.GetRTPTimestamp()-SRprevinf.GetRTPTimestamp(); + + return (t1.GetDouble()/((double)tsdiff)); +} + +RTPTime RTPSourceData::INF_GetRoundtripTime() const +{ + if (!RRinf.HasInfo()) + return RTPTime(0,0); + if (RRinf.GetDelaySinceLastSR() == 0 && RRinf.GetLastSRTimestamp() == 0) + return RTPTime(0,0); + + RTPNTPTime recvtime = RRinf.GetReceiveTime().GetNTPTime(); + uint32_t rtt = ((recvtime.GetMSW()&0xFFFF)<<16)|((recvtime.GetLSW()>>16)&0xFFFF); + rtt -= RRinf.GetLastSRTimestamp(); + rtt -= RRinf.GetDelaySinceLastSR(); + + double drtt = (((double)rtt)/65536.0); + return RTPTime(drtt); +} + +#ifdef RTPDEBUG +void RTPSourceData::Dump() +{ + std::cout << "Source data for SSRC: " << ssrc << std::endl; + std::cout << " Active: " << ((IsActive())?"Yes":"No") << std::endl; + std::cout << " Sender: " << ((issender)?"Yes":"No") << std::endl; + std::cout << " CSRC: " << ((iscsrc)?"Yes":"No") << std::endl; + std::cout << " Received bye: " << ((receivedbye)?"Yes":"No") << std::endl; + std::cout << " ProcessedInRTCP: " << ((processedinrtcp)?"Yes":"No") << std::endl; + std::cout << " Timestamp unit: " << timestampunit << std::endl; + std::cout << " RTP address: "; + if (!isrtpaddrset) + std::cout << "Not set" << std::endl; + else + { + if (rtpaddr == 0) + std::cout << "Own session" << std::endl; + else + std::cout << rtpaddr->GetAddressString() << std::endl; + } + std::cout << " RTCP address: "; + if (!isrtcpaddrset) + std::cout << "Not set" << std::endl; + else + { + if (rtcpaddr == 0) + std::cout << "Own session" << std::endl; + else + std::cout << rtcpaddr->GetAddressString() << std::endl; + } + if (SRinf.HasInfo()) + { + if (!SRprevinf.HasInfo()) + { + std::cout << " SR Info:" << std::endl; + std::cout << " NTP timestamp: " << SRinf.GetNTPTimestamp().GetMSW() << ":" << SRinf.GetNTPTimestamp().GetLSW() << std::endl; + std::cout << " RTP timestamp: " << SRinf.GetRTPTimestamp() << std::endl; + std::cout << " Packet count: " << SRinf.GetPacketCount() << std::endl; + std::cout << " Octet count: " << SRinf.GetByteCount() << std::endl; + std::cout << " Receive time: " << SRinf.GetReceiveTime().GetSeconds() << std::endl; + } + else + { + std::cout << " SR Info:" << std::endl; + std::cout << " NTP timestamp: " << SRinf.GetNTPTimestamp().GetMSW() << ":" << SRinf.GetNTPTimestamp().GetLSW() + << " (" << SRprevinf.GetNTPTimestamp().GetMSW() << ":" << SRprevinf.GetNTPTimestamp().GetLSW() << ")" << std::endl; + std::cout << " RTP timestamp: " << SRinf.GetRTPTimestamp() + << " (" << SRprevinf.GetRTPTimestamp() << ")" << std::endl; + std::cout << " Packet count: " << SRinf.GetPacketCount() + << " (" << SRprevinf.GetPacketCount() << ")" << std::endl; + std::cout << " Octet count: " << SRinf.GetByteCount() + << " (" << SRprevinf.GetByteCount() <<")" << std::endl; + std::cout << " Receive time: " << SRinf.GetReceiveTime().GetSeconds() + << " (" << SRprevinf.GetReceiveTime().GetSeconds() << ")" << std::endl; + } + } + if (RRinf.HasInfo()) + { + if (!RRprevinf.HasInfo()) + { + std::cout << " RR Info:" << std::endl; + std::cout << " Fraction lost: " << RRinf.GetFractionLost() << std::endl; + std::cout << " Packets lost: " << RRinf.GetPacketsLost() << std::endl; + std::cout << " Ext.High.Seq: " << RRinf.GetExtendedHighestSequenceNumber() << std::endl; + std::cout << " Jitter: " << RRinf.GetJitter() << std::endl; + std::cout << " LSR: " << RRinf.GetLastSRTimestamp() << std::endl; + std::cout << " DLSR: " << RRinf.GetDelaySinceLastSR() << std::endl; + std::cout << " Receive time: " << RRinf.GetReceiveTime().GetSeconds() << std::endl; + } + else + { + std::cout << " RR Info:" << std::endl; + std::cout << " Fraction lost: " << RRinf.GetFractionLost() + << " (" << RRprevinf.GetFractionLost() << ")" << std::endl; + std::cout << " Packets lost: " << RRinf.GetPacketsLost() + << " (" << RRprevinf.GetPacketsLost() << ")" << std::endl; + std::cout << " Ext.High.Seq: " << RRinf.GetExtendedHighestSequenceNumber() + << " (" << RRprevinf.GetExtendedHighestSequenceNumber() << ")" << std::endl; + std::cout << " Jitter: " << RRinf.GetJitter() + << " (" << RRprevinf.GetJitter() << ")" << std::endl; + std::cout << " LSR: " << RRinf.GetLastSRTimestamp() + << " (" << RRprevinf.GetLastSRTimestamp() << ")" << std::endl; + std::cout << " DLSR: " << RRinf.GetDelaySinceLastSR() + << " (" << RRprevinf.GetDelaySinceLastSR() << ")" << std::endl; + std::cout << " Receive time: " << RRinf.GetReceiveTime().GetSeconds() + << " (" << RRprevinf.GetReceiveTime().GetSeconds() <<")" << std::endl; + } + } + std::cout << " Stats:" << std::endl; + std::cout << " Sent data: " << ((stats.HasSentData())?"Yes":"No") << std::endl; + std::cout << " Packets received: " << stats.GetNumPacketsReceived() << std::endl; + std::cout << " Seq. base: " << stats.GetBaseSequenceNumber() << std::endl; + std::cout << " Ext.High.Seq: " << stats.GetExtendedHighestSequenceNumber() << std::endl; + std::cout << " Jitter: " << stats.GetJitter() << std::endl; + std::cout << " New packets: " << stats.GetNumPacketsReceivedInInterval() << std::endl; + std::cout << " Saved seq. nr.: " << stats.GetSavedExtendedSequenceNumber() << std::endl; + std::cout << " RTT: " << INF_GetRoundtripTime().GetDouble() << " seconds" << std::endl; + if (INF_GetEstimatedTimestampUnit() > 0) + std::cout << " Estimated: " << (1.0/INF_GetEstimatedTimestampUnit()) << " samples per second" << std::endl; + std::cout << " SDES Info:" << std::endl; + + size_t len; + char str[1024]; + uint8_t *val; + + if ((val = SDESinf.GetCNAME(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " CNAME: " << std::string(str) << std::endl; + } + if ((val = SDESinf.GetName(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " Name: " << std::string(str) << std::endl; + } + if ((val = SDESinf.GetEMail(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " EMail: " << std::string(str) << std::endl; + } + if ((val = SDESinf.GetPhone(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " phone: " << std::string(str) << std::endl; + } + if ((val = SDESinf.GetLocation(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " Location: " << std::string(str) << std::endl; + } + if ((val = SDESinf.GetTool(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " Tool: " << std::string(str) << std::endl; + } + if ((val = SDESinf.GetNote(&len)) != 0) + { + memcpy(str,val,len); + str[len] = 0; + std::cout << " Note: " << std::string(str) << std::endl; + } +#ifdef RTP_SUPPORT_SDESPRIV + SDESinf.GotoFirstPrivateValue(); + uint8_t *pref; + size_t preflen; + while (SDESinf.GetNextPrivateValue(&pref,&preflen,&val,&len)) + { + char prefstr[1024]; + memcpy(prefstr,pref,preflen); + memcpy(str,val,len); + prefstr[preflen] = 0; + str[len] = 0; + std::cout << " Private: " << std::string(prefstr) << ":" << std::string(str) << std::endl; + } +#endif // RTP_SUPPORT_SDESPRIV + if (byereason) + { + memcpy(str,byereason,byereasonlen); + str[byereasonlen] = 0; + std::cout << " BYE Reason: " << std::string(str) << std::endl; + } +} + +#endif // RTPDEBUG + diff --git a/src/rtpsourcedata.h b/src/rtpsourcedata.h new file mode 100644 index 0000000..e2c925c --- /dev/null +++ b/src/rtpsourcedata.h @@ -0,0 +1,474 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpsourcedata.h + */ + +#ifndef RTPSOURCEDATA_H + +#define RTPSOURCEDATA_H + +#include "rtpconfig.h" +#include "rtptimeutilities.h" +#include "rtppacket.h" +#include "rtcpsdesinfo.h" +#include "rtptypes.h" +#include "rtpsources.h" +#include "rtpmemoryobject.h" +#include <list> + +class RTPAddress; + +class RTCPSenderReportInfo +{ +public: + RTCPSenderReportInfo():ntptimestamp(0,0),receivetime(0,0) { hasinfo = false; rtptimestamp = 0; packetcount = 0; bytecount = 0; } + void Set(const RTPNTPTime &ntptime,uint32_t rtptime,uint32_t pcount, + uint32_t bcount,const RTPTime &rcvtime) { ntptimestamp = ntptime; rtptimestamp = rtptime; packetcount = pcount; bytecount = bcount; receivetime = rcvtime; hasinfo = true; } + + bool HasInfo() const { return hasinfo; } + RTPNTPTime GetNTPTimestamp() const { return ntptimestamp; } + uint32_t GetRTPTimestamp() const { return rtptimestamp; } + uint32_t GetPacketCount() const { return packetcount; } + uint32_t GetByteCount() const { return bytecount; } + RTPTime GetReceiveTime() const { return receivetime; } +private: + bool hasinfo; + RTPNTPTime ntptimestamp; + uint32_t rtptimestamp; + uint32_t packetcount; + uint32_t bytecount; + RTPTime receivetime; +}; + +class RTCPReceiverReportInfo +{ +public: + RTCPReceiverReportInfo():receivetime(0,0) { hasinfo = false; fractionlost = 0; packetslost = 0; exthighseqnr = 0; jitter = 0; lsr = 0; dlsr = 0; } + void Set(uint8_t fraclost,int32_t plost,uint32_t exthigh, + uint32_t jit,uint32_t l,uint32_t dl,const RTPTime &rcvtime) { fractionlost = ((double)fraclost)/256.0; packetslost = plost; exthighseqnr = exthigh; jitter = jit; lsr = l; dlsr = dl; receivetime = rcvtime; hasinfo = true; } + + bool HasInfo() const { return hasinfo; } + double GetFractionLost() const { return fractionlost; } + int32_t GetPacketsLost() const { return packetslost; } + uint32_t GetExtendedHighestSequenceNumber() const { return exthighseqnr; } + uint32_t GetJitter() const { return jitter; } + uint32_t GetLastSRTimestamp() const { return lsr; } + uint32_t GetDelaySinceLastSR() const { return dlsr; } + RTPTime GetReceiveTime() const { return receivetime; } +private: + bool hasinfo; + double fractionlost; + int32_t packetslost; + uint32_t exthighseqnr; + uint32_t jitter; + uint32_t lsr; + uint32_t dlsr; + RTPTime receivetime; +}; + +class RTPSourceStats +{ +public: + RTPSourceStats(); + void ProcessPacket(RTPPacket *pack,const RTPTime &receivetime,double tsunit,bool ownpacket,bool *accept,bool applyprobation,bool *onprobation); + + bool HasSentData() const { return sentdata; } + uint32_t GetNumPacketsReceived() const { return packetsreceived; } + uint32_t GetBaseSequenceNumber() const { return baseseqnr; } + uint32_t GetExtendedHighestSequenceNumber() const { return exthighseqnr; } + uint32_t GetJitter() const { return jitter; } + + int32_t GetNumPacketsReceivedInInterval() const { return numnewpackets; } + uint32_t GetSavedExtendedSequenceNumber() const { return savedextseqnr; } + void StartNewInterval() { numnewpackets = 0; savedextseqnr = exthighseqnr; } + + void SetLastMessageTime(const RTPTime &t) { lastmsgtime = t; } + RTPTime GetLastMessageTime() const { return lastmsgtime; } + void SetLastRTPPacketTime(const RTPTime &t) { lastrtptime = t; } + RTPTime GetLastRTPPacketTime() const { return lastrtptime; } + + void SetLastNoteTime(const RTPTime &t) { lastnotetime = t; } + RTPTime GetLastNoteTime() const { return lastnotetime; } +private: + bool sentdata; + uint32_t packetsreceived; + uint32_t numcycles; // shifted left 16 bits + uint32_t baseseqnr; + uint32_t exthighseqnr,prevexthighseqnr; + uint32_t jitter,prevtimestamp; + double djitter; + RTPTime prevpacktime; + RTPTime lastmsgtime; + RTPTime lastrtptime; + RTPTime lastnotetime; + uint32_t numnewpackets; + uint32_t savedextseqnr; +#ifdef RTP_SUPPORT_PROBATION + uint16_t prevseqnr; + int probation; + RTPSources::ProbationType probationtype; +#endif // RTP_SUPPORT_PROBATION +}; + +inline RTPSourceStats::RTPSourceStats():prevpacktime(0,0),lastmsgtime(0,0),lastrtptime(0,0),lastnotetime(0,0) +{ + sentdata = false; + packetsreceived = 0; + baseseqnr = 0; + exthighseqnr = 0; + prevexthighseqnr = 0; + jitter = 0; + numcycles = 0; + numnewpackets = 0; + prevtimestamp = 0; + djitter = 0; + savedextseqnr = 0; +#ifdef RTP_SUPPORT_PROBATION + probation = 0; + prevseqnr = 0; +#endif // RTP_SUPPORT_PROBATION +} + +/** Describes an entry in the RTPSources source table. */ +class RTPSourceData : public RTPMemoryObject +{ +protected: + RTPSourceData(uint32_t ssrc, RTPMemoryManager *mgr = 0); + virtual ~RTPSourceData(); +public: + /** Extracts the first packet of this participants RTP packet queue. */ + RTPPacket *GetNextPacket(); + + /** Clears the participant's RTP packet list. */ + void FlushPackets(); + + /** Returns \c true if there are RTP packets which can be extracted. */ + bool HasData() const { if (!validated) return false; return packetlist.empty()?false:true; } + + /** Returns the SSRC identifier for this member. */ + uint32_t GetSSRC() const { return ssrc; } + + /** Returns \c true if the participant was added using the RTPSources member function CreateOwnSSRC and + * returns \c false otherwise. + */ + bool IsOwnSSRC() const { return ownssrc; } + + /** Returns \c true if the source identifier is actually a CSRC from an RTP packet. */ + bool IsCSRC() const { return iscsrc; } + + /** Returns \c true if this member is marked as a sender and \c false if not. */ + bool IsSender() const { return issender; } + + /** Returns \c true if the participant is validated, which is the case if a number of + * consecutive RTP packets have been received or if a CNAME item has been received for + * this participant. + */ + bool IsValidated() const { return validated; } + + /** Returns \c true if the source was validated and had not yet sent a BYE packet. */ + bool IsActive() const { if (!validated) return false; if (receivedbye) return false; return true; } + + /** This function is used by the RTCPPacketBuilder class to mark whether this participant's + * information has been processed in a report block or not. + */ + void SetProcessedInRTCP(bool v) { processedinrtcp = v; } + + /** This function is used by the RTCPPacketBuilder class and returns whether this participant + * has been processed in a report block or not. + */ + bool IsProcessedInRTCP() const { return processedinrtcp; } + + /** Returns \c true if the address from which this participant's RTP packets originate has + * already been set. + */ + bool IsRTPAddressSet() const { return isrtpaddrset; } + + /** Returns \c true if the address from which this participant's RTCP packets originate has + * already been set. + */ + bool IsRTCPAddressSet() const { return isrtcpaddrset; } + + /** Returns the address from which this participant's RTP packets originate. + * Returns the address from which this participant's RTP packets originate. If the address has + * been set and the returned value is NULL, this indicates that it originated from the local + * participant. + */ + const RTPAddress *GetRTPDataAddress() const { return rtpaddr; } + + /** Returns the address from which this participant's RTCP packets originate. + * Returns the address from which this participant's RTCP packets originate. If the address has + * been set and the returned value is NULL, this indicates that it originated from the local + * participant. + */ + const RTPAddress *GetRTCPDataAddress() const { return rtcpaddr; } + + /** Returns \c true if we received a BYE message for this participant and \c false otherwise. */ + bool ReceivedBYE() const { return receivedbye; } + + /** Returns the reason for leaving contained in the BYE packet of this participant. + * Returns the reason for leaving contained in the BYE packet of this participant. The length of + * the reason is stored in \c len. + */ + uint8_t *GetBYEReason(size_t *len) const { *len = byereasonlen; return byereason; } + + /** Returns the time at which the BYE packet was received. */ + RTPTime GetBYETime() const { return byetime; } + + /** Sets the value for the timestamp unit to be used in jitter calculations for data received from this participant. + * Sets the value for the timestamp unit to be used in jitter calculations for data received from this participant. + * If not set, the library uses an approximation for the timestamp unit which is calculated from two consecutive + * RTCP sender reports. The timestamp unit is defined as a time interval divided by the corresponding timestamp + * interval. For 8000 Hz audio this would be 1/8000. For video, often a timestamp unit of 1/90000 is used. + */ + void SetTimestampUnit(double tsu) { timestampunit = tsu; } + + /** Returns the timestamp unit used for this participant. */ + double GetTimestampUnit() const { return timestampunit; } + + /** Returns \c true if an RTCP sender report has been received from this participant. */ + bool SR_HasInfo() const { return SRinf.HasInfo(); } + + /** Returns the NTP timestamp contained in the last sender report. */ + RTPNTPTime SR_GetNTPTimestamp() const { return SRinf.GetNTPTimestamp(); } + + /** Returns the RTP timestamp contained in the last sender report. */ + uint32_t SR_GetRTPTimestamp() const { return SRinf.GetRTPTimestamp(); } + + /** Returns the packet count contained in the last sender report. */ + uint32_t SR_GetPacketCount() const { return SRinf.GetPacketCount(); } + + /** Returns the octet count contained in the last sender report. */ + uint32_t SR_GetByteCount() const { return SRinf.GetByteCount(); } + + /** Returns the time at which the last sender report was received. */ + RTPTime SR_GetReceiveTime() const { return SRinf.GetReceiveTime(); } + + /** Returns \c true if more than one RTCP sender report has been received. */ + bool SR_Prev_HasInfo() const { return SRprevinf.HasInfo(); } + + /** Returns the NTP timestamp contained in the second to last sender report. */ + RTPNTPTime SR_Prev_GetNTPTimestamp() const { return SRprevinf.GetNTPTimestamp(); } + + /** Returns the RTP timestamp contained in the second to last sender report. */ + uint32_t SR_Prev_GetRTPTimestamp() const { return SRprevinf.GetRTPTimestamp(); } + + /** Returns the packet count contained in the second to last sender report. */ + uint32_t SR_Prev_GetPacketCount() const { return SRprevinf.GetPacketCount(); } + + /** Returns the octet count contained in the second to last sender report. */ + uint32_t SR_Prev_GetByteCount() const { return SRprevinf.GetByteCount(); } + + /** Returns the time at which the second to last sender report was received. */ + RTPTime SR_Prev_GetReceiveTime() const { return SRprevinf.GetReceiveTime(); } + + /** Returns \c true if this participant sent a receiver report with information about the reception of our data. */ + bool RR_HasInfo() const { return RRinf.HasInfo(); } + + /** Returns the fraction lost value from the last report. */ + double RR_GetFractionLost() const { return RRinf.GetFractionLost(); } + + /** Returns the number of lost packets contained in the last report. */ + int32_t RR_GetPacketsLost() const { return RRinf.GetPacketsLost(); } + + /** Returns the extended highest sequence number contained in the last report. */ + uint32_t RR_GetExtendedHighestSequenceNumber() const { return RRinf.GetExtendedHighestSequenceNumber(); } + + /** Returns the jitter value from the last report. */ + uint32_t RR_GetJitter() const { return RRinf.GetJitter(); } + + /** Returns the LSR value from the last report. */ + uint32_t RR_GetLastSRTimestamp() const { return RRinf.GetLastSRTimestamp(); } + + /** Returns the DLSR value from the last report. */ + uint32_t RR_GetDelaySinceLastSR() const { return RRinf.GetDelaySinceLastSR(); } + + /** Returns the time at which the last report was received. */ + RTPTime RR_GetReceiveTime() const { return RRinf.GetReceiveTime(); } + + /** Returns \c true if this participant sent more than one receiver report with information + * about the reception of our data. + */ + bool RR_Prev_HasInfo() const { return RRprevinf.HasInfo(); } + + /** Returns the fraction lost value from the second to last report. */ + double RR_Prev_GetFractionLost() const { return RRprevinf.GetFractionLost(); } + + /** Returns the number of lost packets contained in the second to last report. */ + int32_t RR_Prev_GetPacketsLost() const { return RRprevinf.GetPacketsLost(); } + + /** Returns the extended highest sequence number contained in the second to last report. */ + uint32_t RR_Prev_GetExtendedHighestSequenceNumber() const { return RRprevinf.GetExtendedHighestSequenceNumber(); } + + /** Returns the jitter value from the second to last report. */ + uint32_t RR_Prev_GetJitter() const { return RRprevinf.GetJitter(); } + + /** Returns the LSR value from the second to last report. */ + uint32_t RR_Prev_GetLastSRTimestamp() const { return RRprevinf.GetLastSRTimestamp(); } + + /** Returns the DLSR value from the second to last report. */ + uint32_t RR_Prev_GetDelaySinceLastSR() const { return RRprevinf.GetDelaySinceLastSR(); } + + /** Returns the time at which the second to last report was received. */ + RTPTime RR_Prev_GetReceiveTime() const { return RRprevinf.GetReceiveTime(); } + + /** Returns \c true if validated RTP packets have been received from this participant. */ + bool INF_HasSentData() const { return stats.HasSentData(); } + + /** Returns the total number of received packets from this participant. */ + int32_t INF_GetNumPacketsReceived() const { return stats.GetNumPacketsReceived(); } + + /** Returns the base sequence number of this participant. */ + uint32_t INF_GetBaseSequenceNumber() const { return stats.GetBaseSequenceNumber(); } + + /** Returns the extended highest sequence number received from this participant. */ + uint32_t INF_GetExtendedHighestSequenceNumber() const { return stats.GetExtendedHighestSequenceNumber(); } + + /** Returns the current jitter value for this participant. */ + uint32_t INF_GetJitter() const { return stats.GetJitter(); } + + /** Returns the time at which something was last heard from this member. */ + RTPTime INF_GetLastMessageTime() const { return stats.GetLastMessageTime(); } + + /** Returns the time at which the last RTP packet was received. */ + RTPTime INF_GetLastRTPPacketTime() const { return stats.GetLastRTPPacketTime(); } + + /** Returns the estimated timestamp unit, calculated from two consecutive sender reports. */ + double INF_GetEstimatedTimestampUnit() const; + + /** Returns the number of packets received since a new interval was started with INF_StartNewInterval. */ + uint32_t INF_GetNumPacketsReceivedInInterval() const { return stats.GetNumPacketsReceivedInInterval(); } + + /** Returns the extended sequence number which was stored by the INF_StartNewInterval call. */ + uint32_t INF_GetSavedExtendedSequenceNumber() const { return stats.GetSavedExtendedSequenceNumber(); } + + /** Starts a new interval to count received packets in; this also stores the current extended highest sequence + * number to be able to calculate the packet loss during the interval. + */ + void INF_StartNewInterval() { stats.StartNewInterval(); } + + /** Estimates the round trip time by using the LSR and DLSR info from the last receiver report. */ + RTPTime INF_GetRoundtripTime() const; + + /** Returns the time at which the last SDES NOTE item was received. */ + RTPTime INF_GetLastSDESNoteTime() const { return stats.GetLastNoteTime(); } + + /** Returns a pointer to the SDES CNAME item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetCNAME(size_t *len) const { return SDESinf.GetCNAME(len); } + + /** Returns a pointer to the SDES name item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetName(size_t *len) const { return SDESinf.GetName(len); } + + /** Returns a pointer to the SDES e-mail item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetEMail(size_t *len) const { return SDESinf.GetEMail(len); } + + /** Returns a pointer to the SDES phone item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetPhone(size_t *len) const { return SDESinf.GetPhone(len); } + + /** Returns a pointer to the SDES location item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetLocation(size_t *len) const { return SDESinf.GetLocation(len); } + + /** Returns a pointer to the SDES tool item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetTool(size_t *len) const { return SDESinf.GetTool(len); } + + /** Returns a pointer to the SDES note item of this participant and stores its length in \c len. */ + uint8_t *SDES_GetNote(size_t *len) const { return SDESinf.GetNote(len); } + +#ifdef RTP_SUPPORT_SDESPRIV + /** Starts the iteration over the stored SDES private item prefixes and their associated values. */ + void SDES_GotoFirstPrivateValue() { SDESinf.GotoFirstPrivateValue(); } + + /** If available, returns \c true and stores the next SDES private item prefix in \c prefix and its length in + * \c prefixlen; the associated value and its length are then stored in \c value and \c valuelen. + */ + bool SDES_GetNextPrivateValue(uint8_t **prefix,size_t *prefixlen,uint8_t **value,size_t *valuelen) { return SDESinf.GetNextPrivateValue(prefix,prefixlen,value,valuelen); } + + /** Looks for the entry which corresponds to the SDES private item prefix \c prefix with length + * \c prefixlen; if found, the function returns \c true and stores the associated value and + * its length in \c value and \c valuelen respectively. + */ + bool SDES_GetPrivateValue(uint8_t *prefix,size_t prefixlen,uint8_t **value,size_t *valuelen) const { return SDESinf.GetPrivateValue(prefix,prefixlen,value,valuelen); } +#endif // RTP_SUPPORT_SDESPRIV + +#ifdef RTPDEBUG + virtual void Dump(); +#endif // RTPDEBUG +protected: + std::list<RTPPacket *> packetlist; + + uint32_t ssrc; + bool ownssrc; + bool iscsrc; + double timestampunit; + bool receivedbye; + bool validated; + bool processedinrtcp; + bool issender; + + RTCPSenderReportInfo SRinf,SRprevinf; + RTCPReceiverReportInfo RRinf,RRprevinf; + RTPSourceStats stats; + RTCPSDESInfo SDESinf; + + bool isrtpaddrset,isrtcpaddrset; + RTPAddress *rtpaddr,*rtcpaddr; + + RTPTime byetime; + uint8_t *byereason; + size_t byereasonlen; +}; + +inline RTPPacket *RTPSourceData::GetNextPacket() +{ + if (!validated) + return 0; + + RTPPacket *p; + + if (packetlist.empty()) + return 0; + p = *(packetlist.begin()); + packetlist.pop_front(); + return p; +} + +inline void RTPSourceData::FlushPackets() +{ + std::list<RTPPacket *>::const_iterator it; + + for (it = packetlist.begin() ; it != packetlist.end() ; ++it) + RTPDelete(*it,GetMemoryManager()); + packetlist.clear(); +} +#endif // RTPSOURCEDATA_H + diff --git a/src/rtpsources.cpp b/src/rtpsources.cpp new file mode 100644 index 0000000..7318bc6 --- /dev/null +++ b/src/rtpsources.cpp @@ -0,0 +1,1412 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpsources.h" +#include "rtperrors.h" +#include "rtprawpacket.h" +#include "rtpinternalsourcedata.h" +#include "rtptimeutilities.h" +#include "rtpdefines.h" +#include "rtcpcompoundpacket.h" +#include "rtcppacket.h" +#include "rtcpapppacket.h" +#include "rtcpbyepacket.h" +#include "rtcpsdespacket.h" +#include "rtcpsrpacket.h" +#include "rtcprrpacket.h" +#include "rtptransmitter.h" + +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +RTPSources::RTPSources(ProbationType probtype,RTPMemoryManager *mgr) : RTPMemoryObject(mgr),sourcelist(mgr,RTPMEM_TYPE_CLASS_SOURCETABLEHASHELEMENT) +{ + totalcount = 0; + sendercount = 0; + activecount = 0; + owndata = 0; +#ifdef RTP_SUPPORT_PROBATION + probationtype = probtype; +#endif // RTP_SUPPORT_PROBATION +} + +RTPSources::~RTPSources() +{ + Clear(); +} + +void RTPSources::Clear() +{ + ClearSourceList(); +} + +void RTPSources::ClearSourceList() +{ + sourcelist.GotoFirstElement(); + while (sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *sourcedata; + + sourcedata = sourcelist.GetCurrentElement(); + RTPDelete(sourcedata,GetMemoryManager()); + sourcelist.GotoNextElement(); + } + sourcelist.Clear(); + owndata = 0; + totalcount = 0; + sendercount = 0; + activecount = 0; +} + +int RTPSources::CreateOwnSSRC(uint32_t ssrc) +{ + if (owndata != 0) + return ERR_RTP_SOURCES_ALREADYHAVEOWNSSRC; + if (GotEntry(ssrc)) + return ERR_RTP_SOURCES_SSRCEXISTS; + + int status; + bool created; + + status = ObtainSourceDataInstance(ssrc,&owndata,&created); + if (status < 0) + { + owndata = 0; // just to make sure + return status; + } + owndata->SetOwnSSRC(); + owndata->SetRTPDataAddress(0); + owndata->SetRTCPDataAddress(0); + + // we've created a validated ssrc, so we should increase activecount + activecount++; + + OnNewSource(owndata); + return 0; +} + +int RTPSources::DeleteOwnSSRC() +{ + if (owndata == 0) + return ERR_RTP_SOURCES_DONTHAVEOWNSSRC; + + uint32_t ssrc = owndata->GetSSRC(); + + sourcelist.GotoElement(ssrc); + sourcelist.DeleteCurrentElement(); + + totalcount--; + if (owndata->IsSender()) + sendercount--; + if (owndata->IsActive()) + activecount--; + + OnRemoveSource(owndata); + + RTPDelete(owndata,GetMemoryManager()); + owndata = 0; + return 0; +} + +void RTPSources::SentRTPPacket() +{ + if (owndata == 0) + return; + + bool prevsender = owndata->IsSender(); + + owndata->SentRTPPacket(); + if (!prevsender && owndata->IsSender()) + sendercount++; +} + +int RTPSources::ProcessRawPacket(RTPRawPacket *rawpack,RTPTransmitter *rtptrans,bool acceptownpackets) +{ + RTPTransmitter *transmitters[1]; + int num; + + transmitters[0] = rtptrans; + if (rtptrans == 0) + num = 0; + else + num = 1; + return ProcessRawPacket(rawpack,transmitters,num,acceptownpackets); +} + +int RTPSources::ProcessRawPacket(RTPRawPacket *rawpack,RTPTransmitter *rtptrans[],int numtrans,bool acceptownpackets) +{ + int status; + + if (rawpack->IsRTP()) // RTP packet + { + RTPPacket *rtppack; + + // First, we'll see if the packet can be parsed + rtppack = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPPACKET) RTPPacket(*rawpack,GetMemoryManager()); + if (rtppack == 0) + return ERR_RTP_OUTOFMEM; + if ((status = rtppack->GetCreationError()) < 0) + { + if (status == ERR_RTP_PACKET_INVALIDPACKET) + { + RTPDelete(rtppack,GetMemoryManager()); + rtppack = 0; + } + else + { + RTPDelete(rtppack,GetMemoryManager()); + return status; + } + } + + // Check if the packet was valid + if (rtppack != 0) + { + bool stored = false; + bool ownpacket = false; + int i; + const RTPAddress *senderaddress = rawpack->GetSenderAddress(); + + for (i = 0 ; !ownpacket && i < numtrans ; i++) + { + if (rtptrans[i]->ComesFromThisTransmitter(senderaddress)) + ownpacket = true; + } + + // Check if the packet is our own. + if (ownpacket) + { + // Now it depends on the user's preference + // what to do with this packet: + if (acceptownpackets) + { + // sender addres for own packets has to be NULL! + if ((status = ProcessRTPPacket(rtppack,rawpack->GetReceiveTime(),0,&stored)) < 0) + { + if (!stored) + RTPDelete(rtppack,GetMemoryManager()); + return status; + } + } + } + else + { + if ((status = ProcessRTPPacket(rtppack,rawpack->GetReceiveTime(),senderaddress,&stored)) < 0) + { + if (!stored) + RTPDelete(rtppack,GetMemoryManager()); + return status; + } + } + if (!stored) + RTPDelete(rtppack,GetMemoryManager()); + } + } + else // RTCP packet + { + RTCPCompoundPacket rtcpcomppack(*rawpack,GetMemoryManager()); + bool valid = false; + + if ((status = rtcpcomppack.GetCreationError()) < 0) + { + if (status != ERR_RTP_RTCPCOMPOUND_INVALIDPACKET) + return status; + } + else + valid = true; + + + if (valid) + { + bool ownpacket = false; + int i; + const RTPAddress *senderaddress = rawpack->GetSenderAddress(); + + for (i = 0 ; !ownpacket && i < numtrans ; i++) + { + if (rtptrans[i]->ComesFromThisTransmitter(senderaddress)) + ownpacket = true; + } + + // First check if it's a packet of this session. + if (ownpacket) + { + if (acceptownpackets) + { + // sender address for own packets has to be NULL + status = ProcessRTCPCompoundPacket(&rtcpcomppack,rawpack->GetReceiveTime(),0); + if (status < 0) + return status; + } + } + else // not our own packet + { + status = ProcessRTCPCompoundPacket(&rtcpcomppack,rawpack->GetReceiveTime(),rawpack->GetSenderAddress()); + if (status < 0) + return status; + } + } + } + + return 0; +} + +int RTPSources::ProcessRTPPacket(RTPPacket *rtppack,const RTPTime &receivetime,const RTPAddress *senderaddress,bool *stored) +{ + uint32_t ssrc; + RTPInternalSourceData *srcdat; + int status; + bool created; + + OnRTPPacket(rtppack,receivetime,senderaddress); + + *stored = false; + + ssrc = rtppack->GetSSRC(); + if ((status = ObtainSourceDataInstance(ssrc,&srcdat,&created)) < 0) + return status; + + if (created) + { + if ((status = srcdat->SetRTPDataAddress(senderaddress)) < 0) + return status; + } + else // got a previously existing source + { + if (CheckCollision(srcdat,senderaddress,true)) + return 0; // ignore packet on collision + } + + bool prevsender = srcdat->IsSender(); + bool prevactive = srcdat->IsActive(); + + // The packet comes from a valid source, we can process it further now + // The following function should delete rtppack itself if something goes + // wrong + if ((status = srcdat->ProcessRTPPacket(rtppack,receivetime,stored)) < 0) + return status; + + if (!prevsender && srcdat->IsSender()) + sendercount++; + if (!prevactive && srcdat->IsActive()) + activecount++; + + if (created) + OnNewSource(srcdat); + + if (srcdat->IsValidated()) // process the CSRCs + { + RTPInternalSourceData *csrcdat; + bool createdcsrc; + + int num = rtppack->GetCSRCCount(); + int i; + + for (i = 0 ; i < num ; i++) + { + if ((status = ObtainSourceDataInstance(rtppack->GetCSRC(i),&csrcdat,&createdcsrc)) < 0) + return status; + if (createdcsrc) + { + csrcdat->SetCSRC(); + if (csrcdat->IsActive()) + activecount++; + OnNewSource(csrcdat); + } + else // already found an entry, possibly because of RTCP data + { + if (!CheckCollision(csrcdat,senderaddress,true)) + csrcdat->SetCSRC(); + } + } + } + + return 0; +} + +int RTPSources::ProcessRTCPCompoundPacket(RTCPCompoundPacket *rtcpcomppack,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + RTCPPacket *rtcppack; + int status; + bool gotownssrc = ((owndata == 0)?false:true); + uint32_t ownssrc = ((owndata != 0)?owndata->GetSSRC():0); + + OnRTCPCompoundPacket(rtcpcomppack,receivetime,senderaddress); + + rtcpcomppack->GotoFirstPacket(); + while ((rtcppack = rtcpcomppack->GetNextPacket()) != 0) + { + if (rtcppack->IsKnownFormat()) + { + switch (rtcppack->GetPacketType()) + { + case RTCPPacket::SR: + { + RTCPSRPacket *p = (RTCPSRPacket *)rtcppack; + uint32_t senderssrc = p->GetSenderSSRC(); + + status = ProcessRTCPSenderInfo(senderssrc,p->GetNTPTimestamp(),p->GetRTPTimestamp(), + p->GetSenderPacketCount(),p->GetSenderOctetCount(), + receivetime,senderaddress); + if (status < 0) + return status; + + bool gotinfo = false; + if (gotownssrc) + { + int i; + int num = p->GetReceptionReportCount(); + for (i = 0 ; i < num ; i++) + { + if (p->GetSSRC(i) == ownssrc) // data is meant for us + { + gotinfo = true; + status = ProcessRTCPReportBlock(senderssrc,p->GetFractionLost(i),p->GetLostPacketCount(i), + p->GetExtendedHighestSequenceNumber(i),p->GetJitter(i),p->GetLSR(i), + p->GetDLSR(i),receivetime,senderaddress); + if (status < 0) + return status; + } + } + } + if (!gotinfo) + { + status = UpdateReceiveTime(senderssrc,receivetime,senderaddress); + if (status < 0) + return status; + } + } + break; + case RTCPPacket::RR: + { + RTCPRRPacket *p = (RTCPRRPacket *)rtcppack; + uint32_t senderssrc = p->GetSenderSSRC(); + + bool gotinfo = false; + + if (gotownssrc) + { + int i; + int num = p->GetReceptionReportCount(); + for (i = 0 ; i < num ; i++) + { + if (p->GetSSRC(i) == ownssrc) + { + gotinfo = true; + status = ProcessRTCPReportBlock(senderssrc,p->GetFractionLost(i),p->GetLostPacketCount(i), + p->GetExtendedHighestSequenceNumber(i),p->GetJitter(i),p->GetLSR(i), + p->GetDLSR(i),receivetime,senderaddress); + if (status < 0) + return status; + } + } + } + if (!gotinfo) + { + status = UpdateReceiveTime(senderssrc,receivetime,senderaddress); + if (status < 0) + return status; + } + } + break; + case RTCPPacket::SDES: + { + RTCPSDESPacket *p = (RTCPSDESPacket *)rtcppack; + + if (p->GotoFirstChunk()) + { + do + { + uint32_t sdesssrc = p->GetChunkSSRC(); + bool updated = false; + if (p->GotoFirstItem()) + { + do + { + RTCPSDESPacket::ItemType t; + + if ((t = p->GetItemType()) != RTCPSDESPacket::PRIV) + { + updated = true; + status = ProcessSDESNormalItem(sdesssrc,t,p->GetItemLength(),p->GetItemData(),receivetime,senderaddress); + if (status < 0) + return status; + } +#ifdef RTP_SUPPORT_SDESPRIV + else + { + updated = true; + status = ProcessSDESPrivateItem(sdesssrc,p->GetPRIVPrefixLength(),p->GetPRIVPrefixData(),p->GetPRIVValueLength(), + p->GetPRIVValueData(),receivetime,senderaddress); + if (status < 0) + return status; + } +#endif // RTP_SUPPORT_SDESPRIV + } while (p->GotoNextItem()); + } + if (!updated) + { + status = UpdateReceiveTime(sdesssrc,receivetime,senderaddress); + if (status < 0) + return status; + } + } while (p->GotoNextChunk()); + } + } + break; + case RTCPPacket::BYE: + { + RTCPBYEPacket *p = (RTCPBYEPacket *)rtcppack; + int i; + int num = p->GetSSRCCount(); + + for (i = 0 ; i < num ; i++) + { + uint32_t byessrc = p->GetSSRC(i); + status = ProcessBYE(byessrc,p->GetReasonLength(),p->GetReasonData(),receivetime,senderaddress); + if (status < 0) + return status; + } + } + break; + case RTCPPacket::APP: + { + RTCPAPPPacket *p = (RTCPAPPPacket *)rtcppack; + + OnAPPPacket(p,receivetime,senderaddress); + } + break; + case RTCPPacket::Unknown: + default: + { + OnUnknownPacketType(rtcppack,receivetime,senderaddress); + } + break; + } + } + else + { + OnUnknownPacketFormat(rtcppack,receivetime,senderaddress); + } + } + + return 0; +} + +bool RTPSources::GotoFirstSource() +{ + sourcelist.GotoFirstElement(); + if (sourcelist.HasCurrentElement()) + return true; + return false; +} + +bool RTPSources::GotoNextSource() +{ + sourcelist.GotoNextElement(); + if (sourcelist.HasCurrentElement()) + return true; + return false; +} + +bool RTPSources::GotoPreviousSource() +{ + sourcelist.GotoPreviousElement(); + if (sourcelist.HasCurrentElement()) + return true; + return false; +} + +bool RTPSources::GotoFirstSourceWithData() +{ + bool found = false; + + sourcelist.GotoFirstElement(); + while (!found && sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat; + + srcdat = sourcelist.GetCurrentElement(); + if (srcdat->HasData()) + found = true; + else + sourcelist.GotoNextElement(); + } + + return found; +} + +bool RTPSources::GotoNextSourceWithData() +{ + bool found = false; + + sourcelist.GotoNextElement(); + while (!found && sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat; + + srcdat = sourcelist.GetCurrentElement(); + if (srcdat->HasData()) + found = true; + else + sourcelist.GotoNextElement(); + } + + return found; +} + +bool RTPSources::GotoPreviousSourceWithData() +{ + bool found = false; + + sourcelist.GotoPreviousElement(); + while (!found && sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat; + + srcdat = sourcelist.GetCurrentElement(); + if (srcdat->HasData()) + found = true; + else + sourcelist.GotoNextElement(); + } + + return found; +} + +RTPSourceData *RTPSources::GetCurrentSourceInfo() +{ + if (!sourcelist.HasCurrentElement()) + return 0; + return sourcelist.GetCurrentElement(); +} + +RTPSourceData *RTPSources::GetSourceInfo(uint32_t ssrc) +{ + if (sourcelist.GotoElement(ssrc) < 0) + return 0; + if (!sourcelist.HasCurrentElement()) + return 0; + return sourcelist.GetCurrentElement(); +} + +bool RTPSources::GotEntry(uint32_t ssrc) +{ + return sourcelist.HasElement(ssrc); +} + +RTPPacket *RTPSources::GetNextPacket() +{ + if (!sourcelist.HasCurrentElement()) + return 0; + + RTPInternalSourceData *srcdat = sourcelist.GetCurrentElement(); + RTPPacket *pack = srcdat->GetNextPacket(); + return pack; +} + +int RTPSources::ProcessRTCPSenderInfo(uint32_t ssrc,const RTPNTPTime &ntptime,uint32_t rtptime, + uint32_t packetcount,uint32_t octetcount,const RTPTime &receivetime, + const RTPAddress *senderaddress) +{ + RTPInternalSourceData *srcdat; + bool created; + int status; + + status = GetRTCPSourceData(ssrc,senderaddress,&srcdat,&created); + if (status < 0) + return status; + if (srcdat == 0) + return 0; + + srcdat->ProcessSenderInfo(ntptime,rtptime,packetcount,octetcount,receivetime); + + // Call the callback + if (created) + OnNewSource(srcdat); + + return 0; +} + +int RTPSources::ProcessRTCPReportBlock(uint32_t ssrc,uint8_t fractionlost,int32_t lostpackets, + uint32_t exthighseqnr,uint32_t jitter,uint32_t lsr, + uint32_t dlsr,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + RTPInternalSourceData *srcdat; + bool created; + int status; + + status = GetRTCPSourceData(ssrc,senderaddress,&srcdat,&created); + if (status < 0) + return status; + if (srcdat == 0) + return 0; + + srcdat->ProcessReportBlock(fractionlost,lostpackets,exthighseqnr,jitter,lsr,dlsr,receivetime); + + // Call the callback + if (created) + OnNewSource(srcdat); + + return 0; +} + +int RTPSources::ProcessSDESNormalItem(uint32_t ssrc,RTCPSDESPacket::ItemType t,size_t itemlength, + const void *itemdata,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + RTPInternalSourceData *srcdat; + bool created,cnamecollis; + int status; + uint8_t sdesid; + bool prevactive; + + switch(t) + { + case RTCPSDESPacket::CNAME: + sdesid = RTCP_SDES_ID_CNAME; + break; + case RTCPSDESPacket::NAME: + sdesid = RTCP_SDES_ID_NAME; + break; + case RTCPSDESPacket::EMAIL: + sdesid = RTCP_SDES_ID_EMAIL; + break; + case RTCPSDESPacket::PHONE: + sdesid = RTCP_SDES_ID_PHONE; + break; + case RTCPSDESPacket::LOC: + sdesid = RTCP_SDES_ID_LOCATION; + break; + case RTCPSDESPacket::TOOL: + sdesid = RTCP_SDES_ID_TOOL; + break; + case RTCPSDESPacket::NOTE: + sdesid = RTCP_SDES_ID_NOTE; + break; + default: + return ERR_RTP_SOURCES_ILLEGALSDESTYPE; + } + + status = GetRTCPSourceData(ssrc,senderaddress,&srcdat,&created); + if (status < 0) + return status; + if (srcdat == 0) + return 0; + + prevactive = srcdat->IsActive(); + status = srcdat->ProcessSDESItem(sdesid,(const uint8_t *)itemdata,itemlength,receivetime,&cnamecollis); + if (!prevactive && srcdat->IsActive()) + activecount++; + + // Call the callback + if (created) + OnNewSource(srcdat); + if (cnamecollis) + OnCNAMECollision(srcdat,senderaddress,(const uint8_t *)itemdata,itemlength); + + return status; +} + +#ifdef RTP_SUPPORT_SDESPRIV +int RTPSources::ProcessSDESPrivateItem(uint32_t ssrc,size_t prefixlen,const void *prefixdata, + size_t valuelen,const void *valuedata,const RTPTime &receivetime, + const RTPAddress *senderaddress) +{ + RTPInternalSourceData *srcdat; + bool created; + int status; + + status = GetRTCPSourceData(ssrc,senderaddress,&srcdat,&created); + if (status < 0) + return status; + if (srcdat == 0) + return 0; + + status = srcdat->ProcessPrivateSDESItem((const uint8_t *)prefixdata,prefixlen,(const uint8_t *)valuedata,valuelen,receivetime); + // Call the callback + if (created) + OnNewSource(srcdat); + return status; +} +#endif //RTP_SUPPORT_SDESPRIV + +int RTPSources::ProcessBYE(uint32_t ssrc,size_t reasonlength,const void *reasondata, + const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + RTPInternalSourceData *srcdat; + bool created; + int status; + bool prevactive; + + status = GetRTCPSourceData(ssrc,senderaddress,&srcdat,&created); + if (status < 0) + return status; + if (srcdat == 0) + return 0; + + // we'll ignore BYE packets for our own ssrc + if (srcdat == owndata) + return 0; + + prevactive = srcdat->IsActive(); + srcdat->ProcessBYEPacket((const uint8_t *)reasondata,reasonlength,receivetime); + if (prevactive && !srcdat->IsActive()) + activecount--; + + // Call the callback + if (created) + OnNewSource(srcdat); + OnBYEPacket(srcdat); + return 0; +} + +int RTPSources::ObtainSourceDataInstance(uint32_t ssrc,RTPInternalSourceData **srcdat,bool *created) +{ + RTPInternalSourceData *srcdat2; + int status; + + if (sourcelist.GotoElement(ssrc) < 0) // No entry for this source + { +#ifdef RTP_SUPPORT_PROBATION + srcdat2 = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPINTERNALSOURCEDATA) RTPInternalSourceData(ssrc,probationtype,GetMemoryManager()); +#else + srcdat2 = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPINTERNALSOURCEDATA) RTPInternalSourceData(ssrc,RTPSources::NoProbation,GetMemoryManager()); +#endif // RTP_SUPPORT_PROBATION + if (srcdat2 == 0) + return ERR_RTP_OUTOFMEM; + if ((status = sourcelist.AddElement(ssrc,srcdat2)) < 0) + { + RTPDelete(srcdat2,GetMemoryManager()); + return status; + } + *srcdat = srcdat2; + *created = true; + totalcount++; + } + else + { + *srcdat = sourcelist.GetCurrentElement(); + *created = false; + } + return 0; +} + + +int RTPSources::GetRTCPSourceData(uint32_t ssrc,const RTPAddress *senderaddress, + RTPInternalSourceData **srcdat2,bool *newsource) +{ + int status; + bool created; + RTPInternalSourceData *srcdat; + + *srcdat2 = 0; + + if ((status = ObtainSourceDataInstance(ssrc,&srcdat,&created)) < 0) + return status; + + if (created) + { + if ((status = srcdat->SetRTCPDataAddress(senderaddress)) < 0) + return status; + } + else // got a previously existing source + { + if (CheckCollision(srcdat,senderaddress,false)) + return 0; // ignore packet on collision + } + + *srcdat2 = srcdat; + *newsource = created; + + return 0; +} + +int RTPSources::UpdateReceiveTime(uint32_t ssrc,const RTPTime &receivetime,const RTPAddress *senderaddress) +{ + RTPInternalSourceData *srcdat; + bool created; + int status; + + status = GetRTCPSourceData(ssrc,senderaddress,&srcdat,&created); + if (status < 0) + return status; + if (srcdat == 0) + return 0; + + // We got valid SSRC info + srcdat->UpdateMessageTime(receivetime); + + // Call the callback + if (created) + OnNewSource(srcdat); + + return 0; +} + +void RTPSources::Timeout(const RTPTime &curtime,const RTPTime &timeoutdelay) +{ + int newtotalcount = 0; + int newsendercount = 0; + int newactivecount = 0; + RTPTime checktime = curtime; + checktime -= timeoutdelay; + + sourcelist.GotoFirstElement(); + while (sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat = sourcelist.GetCurrentElement(); + RTPTime lastmsgtime = srcdat->INF_GetLastMessageTime(); + + // we don't want to time out ourselves + if ((srcdat != owndata) && (lastmsgtime < checktime)) // timeout + { + + totalcount--; + if (srcdat->IsSender()) + sendercount--; + if (srcdat->IsActive()) + activecount--; + + sourcelist.DeleteCurrentElement(); + + OnTimeout(srcdat); + OnRemoveSource(srcdat); + RTPDelete(srcdat,GetMemoryManager()); + } + else + { + newtotalcount++; + if (srcdat->IsSender()) + newsendercount++; + if (srcdat->IsActive()) + newactivecount++; + sourcelist.GotoNextElement(); + } + } + +#ifdef RTPDEBUG + if (newtotalcount != totalcount) + { + std::cout << "New total count " << newtotalcount << " doesnt match old total count " << totalcount << std::endl; + SafeCountTotal(); + } + if (newsendercount != sendercount) + { + std::cout << "New sender count " << newsendercount << " doesnt match old sender count " << sendercount << std::endl; + SafeCountSenders(); + } + if (newactivecount != activecount) + { + std::cout << "New active count " << newactivecount << " doesnt match old active count " << activecount << std::endl; + SafeCountActive(); + } +#endif // RTPDEBUG + + totalcount = newtotalcount; // just to play it safe + sendercount = newsendercount; + activecount = newactivecount; +} + +void RTPSources::SenderTimeout(const RTPTime &curtime,const RTPTime &timeoutdelay) +{ + int newtotalcount = 0; + int newsendercount = 0; + int newactivecount = 0; + RTPTime checktime = curtime; + checktime -= timeoutdelay; + + sourcelist.GotoFirstElement(); + while (sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat = sourcelist.GetCurrentElement(); + + newtotalcount++; + if (srcdat->IsActive()) + newactivecount++; + + if (srcdat->IsSender()) + { + RTPTime lastrtppacktime = srcdat->INF_GetLastRTPPacketTime(); + + if (lastrtppacktime < checktime) // timeout + { + srcdat->ClearSenderFlag(); + sendercount--; + } + else + newsendercount++; + } + sourcelist.GotoNextElement(); + } + +#ifdef RTPDEBUG + if (newtotalcount != totalcount) + { + std::cout << "New total count " << newtotalcount << " doesnt match old total count " << totalcount << std::endl; + SafeCountTotal(); + } + if (newsendercount != sendercount) + { + std::cout << "New sender count " << newsendercount << " doesnt match old sender count " << sendercount << std::endl; + SafeCountSenders(); + } + if (newactivecount != activecount) + { + std::cout << "New active count " << newactivecount << " doesnt match old active count " << activecount << std::endl; + SafeCountActive(); + } +#endif // RTPDEBUG + + totalcount = newtotalcount; // just to play it safe + sendercount = newsendercount; + activecount = newactivecount; +} + +void RTPSources::BYETimeout(const RTPTime &curtime,const RTPTime &timeoutdelay) +{ + int newtotalcount = 0; + int newsendercount = 0; + int newactivecount = 0; + RTPTime checktime = curtime; + checktime -= timeoutdelay; + + sourcelist.GotoFirstElement(); + while (sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat = sourcelist.GetCurrentElement(); + + if (srcdat->ReceivedBYE()) + { + RTPTime byetime = srcdat->GetBYETime(); + + if ((srcdat != owndata) && (checktime > byetime)) + { + totalcount--; + if (srcdat->IsSender()) + sendercount--; + if (srcdat->IsActive()) + activecount--; + sourcelist.DeleteCurrentElement(); + OnBYETimeout(srcdat); + OnRemoveSource(srcdat); + RTPDelete(srcdat,GetMemoryManager()); + } + else + { + newtotalcount++; + if (srcdat->IsSender()) + newsendercount++; + if (srcdat->IsActive()) + newactivecount++; + sourcelist.GotoNextElement(); + } + } + else + { + newtotalcount++; + if (srcdat->IsSender()) + newsendercount++; + if (srcdat->IsActive()) + newactivecount++; + sourcelist.GotoNextElement(); + } + } + +#ifdef RTPDEBUG + if (newtotalcount != totalcount) + { + std::cout << "New total count " << newtotalcount << " doesnt match old total count " << totalcount << std::endl; + SafeCountTotal(); + } + if (newsendercount != sendercount) + { + std::cout << "New sender count " << newsendercount << " doesnt match old sender count " << sendercount << std::endl; + SafeCountSenders(); + } + if (newactivecount != activecount) + { + std::cout << "New active count " << newactivecount << " doesnt match old active count " << activecount << std::endl; + SafeCountActive(); + } +#endif // RTPDEBUG + + totalcount = newtotalcount; // just to play it safe + sendercount = newsendercount; + activecount = newactivecount; +} + +void RTPSources::NoteTimeout(const RTPTime &curtime,const RTPTime &timeoutdelay) +{ + int newtotalcount = 0; + int newsendercount = 0; + int newactivecount = 0; + RTPTime checktime = curtime; + checktime -= timeoutdelay; + + sourcelist.GotoFirstElement(); + while (sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat = sourcelist.GetCurrentElement(); + uint8_t *note; + size_t notelen; + + note = srcdat->SDES_GetNote(¬elen); + if (notelen != 0) // Note has been set + { + RTPTime notetime = srcdat->INF_GetLastSDESNoteTime(); + + if (checktime > notetime) + { + srcdat->ClearNote(); + OnNoteTimeout(srcdat); + } + } + + newtotalcount++; + if (srcdat->IsSender()) + newsendercount++; + if (srcdat->IsActive()) + newactivecount++; + sourcelist.GotoNextElement(); + } + +#ifdef RTPDEBUG + if (newtotalcount != totalcount) + { + std::cout << "New total count " << newtotalcount << " doesnt match old total count " << totalcount << std::endl; + SafeCountTotal(); + } + if (newsendercount != sendercount) + { + std::cout << "New sender count " << newsendercount << " doesnt match old sender count " << sendercount << std::endl; + SafeCountSenders(); + } + if (newactivecount != activecount) + { + std::cout << "New active count " << newactivecount << " doesnt match old active count " << activecount << std::endl; + SafeCountActive(); + } +#endif // RTPDEBUG + + totalcount = newtotalcount; // just to play it safe + sendercount = newsendercount; + activecount = newactivecount; + +} + +void RTPSources::MultipleTimeouts(const RTPTime &curtime,const RTPTime &sendertimeout,const RTPTime &byetimeout,const RTPTime &generaltimeout,const RTPTime ¬etimeout) +{ + int newtotalcount = 0; + int newsendercount = 0; + int newactivecount = 0; + RTPTime senderchecktime = curtime; + RTPTime byechecktime = curtime; + RTPTime generaltchecktime = curtime; + RTPTime notechecktime = curtime; + senderchecktime -= sendertimeout; + byechecktime -= byetimeout; + generaltchecktime -= generaltimeout; + notechecktime -= notetimeout; + + sourcelist.GotoFirstElement(); + while (sourcelist.HasCurrentElement()) + { + RTPInternalSourceData *srcdat = sourcelist.GetCurrentElement(); + bool deleted,issender,isactive; + bool byetimeout,normaltimeout,notetimeout; + uint8_t *note; + size_t notelen; + + issender = srcdat->IsSender(); + isactive = srcdat->IsActive(); + deleted = false; + byetimeout = false; + normaltimeout = false; + notetimeout = false; + + note = srcdat->SDES_GetNote(¬elen); + if (notelen != 0) // Note has been set + { + RTPTime notetime = srcdat->INF_GetLastSDESNoteTime(); + + if (notechecktime > notetime) + { + notetimeout = true; + srcdat->ClearNote(); + } + } + + if (srcdat->ReceivedBYE()) + { + RTPTime byetime = srcdat->GetBYETime(); + + if ((srcdat != owndata) && (byechecktime > byetime)) + { + sourcelist.DeleteCurrentElement(); + deleted = true; + byetimeout = true; + } + } + + if (!deleted) + { + RTPTime lastmsgtime = srcdat->INF_GetLastMessageTime(); + + if ((srcdat != owndata) && (lastmsgtime < generaltchecktime)) + { + sourcelist.DeleteCurrentElement(); + deleted = true; + normaltimeout = true; + } + } + + if (!deleted) + { + newtotalcount++; + + if (issender) + { + RTPTime lastrtppacktime = srcdat->INF_GetLastRTPPacketTime(); + + if (lastrtppacktime < senderchecktime) + { + srcdat->ClearSenderFlag(); + sendercount--; + } + else + newsendercount++; + } + + if (isactive) + newactivecount++; + + if (notetimeout) + OnNoteTimeout(srcdat); + + sourcelist.GotoNextElement(); + } + else // deleted entry + { + if (issender) + sendercount--; + if (isactive) + activecount--; + totalcount--; + + if (byetimeout) + OnBYETimeout(srcdat); + if (normaltimeout) + OnTimeout(srcdat); + OnRemoveSource(srcdat); + RTPDelete(srcdat,GetMemoryManager()); + } + } + +#ifdef RTPDEBUG + if (newtotalcount != totalcount) + { + SafeCountTotal(); + std::cout << "New total count " << newtotalcount << " doesnt match old total count " << totalcount << std::endl; + } + if (newsendercount != sendercount) + { + SafeCountSenders(); + std::cout << "New sender count " << newsendercount << " doesnt match old sender count " << sendercount << std::endl; + } + if (newactivecount != activecount) + { + std::cout << "New active count " << newactivecount << " doesnt match old active count " << activecount << std::endl; + SafeCountActive(); + } +#endif // RTPDEBUG + + totalcount = newtotalcount; // just to play it safe + sendercount = newsendercount; + activecount = newactivecount; +} + +#ifdef RTPDEBUG +void RTPSources::Dump() +{ + std::cout << "Total count: " << totalcount << std::endl; + std::cout << "Sender count: " << sendercount << std::endl; + std::cout << "Active count: " << activecount << std::endl; + if (GotoFirstSource()) + { + do + { + RTPSourceData *s; + s = GetCurrentSourceInfo(); + s->Dump(); + std::cout << std::endl; + } while (GotoNextSource()); + } +} + +void RTPSources::SafeCountTotal() +{ + int count = 0; + + if (GotoFirstSource()) + { + do + { + count++; + } while (GotoNextSource()); + } + std::cout << "Actual total count: " << count << std::endl; +} + +void RTPSources::SafeCountSenders() +{ + int count = 0; + + if (GotoFirstSource()) + { + do + { + RTPSourceData *s; + s = GetCurrentSourceInfo(); + if (s->IsSender()) + count++; + } while (GotoNextSource()); + } + std::cout << "Actual sender count: " << count << std::endl; +} + +void RTPSources::SafeCountActive() +{ + int count = 0; + + if (GotoFirstSource()) + { + do + { + RTPSourceData *s; + s = GetCurrentSourceInfo(); + if (s->IsActive()) + count++; + } while (GotoNextSource()); + } + std::cout << "Actual active count: " << count << std::endl; +} + +#endif // RTPDEBUG + +bool RTPSources::CheckCollision(RTPInternalSourceData *srcdat,const RTPAddress *senderaddress,bool isrtp) +{ + bool isset,otherisset; + const RTPAddress *addr,*otheraddr; + + if (isrtp) + { + isset = srcdat->IsRTPAddressSet(); + addr = srcdat->GetRTPDataAddress(); + otherisset = srcdat->IsRTCPAddressSet(); + otheraddr = srcdat->GetRTCPDataAddress(); + } + else + { + isset = srcdat->IsRTCPAddressSet(); + addr = srcdat->GetRTCPDataAddress(); + otherisset = srcdat->IsRTPAddressSet(); + otheraddr = srcdat->GetRTPDataAddress(); + } + + if (!isset) + { + if (otherisset) // got other address, can check if it comes from same host + { + if (otheraddr == 0) // other came from our own session + { + if (senderaddress != 0) + { + OnSSRCCollision(srcdat,senderaddress,isrtp); + return true; + } + + // Ok, store it + + if (isrtp) + srcdat->SetRTPDataAddress(senderaddress); + else + srcdat->SetRTCPDataAddress(senderaddress); + } + else + { + if (!otheraddr->IsFromSameHost(senderaddress)) + { + OnSSRCCollision(srcdat,senderaddress,isrtp); + return true; + } + + // Ok, comes from same host, store the address + + if (isrtp) + srcdat->SetRTPDataAddress(senderaddress); + else + srcdat->SetRTCPDataAddress(senderaddress); + } + } + else // no other address, store this one + { + if (isrtp) + srcdat->SetRTPDataAddress(senderaddress); + else + srcdat->SetRTCPDataAddress(senderaddress); + } + } + else // already got an address + { + if (addr == 0) + { + if (senderaddress != 0) + { + OnSSRCCollision(srcdat,senderaddress,isrtp); + return true; + } + } + else + { + if (!addr->IsSameAddress(senderaddress)) + { + OnSSRCCollision(srcdat,senderaddress,isrtp); + return true; + } + } + } + + return false; +} diff --git a/src/rtpsources.h b/src/rtpsources.h new file mode 100644 index 0000000..9c4807a --- /dev/null +++ b/src/rtpsources.h @@ -0,0 +1,360 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpsources.h + */ + +#ifndef RTPSOURCES_H + +#define RTPSOURCES_H + +#include "rtpconfig.h" +#include "rtpkeyhashtable.h" +#include "rtcpsdespacket.h" +#include "rtptypes.h" +#include "rtpmemoryobject.h" + +#define RTPSOURCES_HASHSIZE 8317 + +class RTPSources_GetHashIndex +{ +public: + static int GetIndex(const uint32_t &ssrc) { return ssrc%RTPSOURCES_HASHSIZE; } +}; + +class RTPNTPTime; +class RTPTransmitter; +class RTCPAPPPacket; +class RTPInternalSourceData; +class RTPRawPacket; +class RTPPacket; +class RTPTime; +class RTPAddress; +class RTPSourceData; + +/** Represents a table in which information about the participating sources is kept. + * Represents a table in which information about the participating sources is kept. The class has member + * functions to process RTP and RTCP data and to iterate over the participants. Note that a NULL address + * is used to identify packets from our own session. The class also provides some overridable functions + * which can be used to catch certain events (new SSRC, SSRC collision, ...). + */ +class RTPSources : public RTPMemoryObject +{ +public: + /** Type of probation to use for new sources. */ + enum ProbationType + { + NoProbation, /**< Don't use the probation algorithm; accept RTP packets immediately. */ + ProbationDiscard, /**< Discard incoming RTP packets originating from a source that's on probation. */ + ProbationStore /**< Store incoming RTP packet from a source that's on probation for later retrieval. */ + }; + + /** In the constructor you can select the probation type you'd like to use and also a memory manager. */ + RTPSources(ProbationType = ProbationStore,RTPMemoryManager *mgr = 0); + virtual ~RTPSources(); + + /** Clears the source table. */ + void Clear(); +#ifdef RTP_SUPPORT_PROBATION + /** Changes the current probation type. */ + void SetProbationType(ProbationType probtype) { probationtype = probtype; } +#endif // RTP_SUPPORT_PROBATION + + /** Creates an entry for our own SSRC identifier. */ + int CreateOwnSSRC(uint32_t ssrc); + + /** Deletes the entry for our own SSRC identifier. */ + int DeleteOwnSSRC(); + + /** This function should be called if our own session has sent an RTP packet. + * This function should be called if our own session has sent an RTP packet. + * For our own SSRC entry, the sender flag is updated based upon outgoing packets instead of incoming packets. + */ + void SentRTPPacket(); + + /** Processes a raw packet \c rawpack. + * Processes a raw packet \c rawpack. The instance \c trans will be used to check if this + * packet is one of our own packets. The flag \c acceptownpackets indicates whether own packets should be + * accepted or ignored. + */ + int ProcessRawPacket(RTPRawPacket *rawpack,RTPTransmitter *trans,bool acceptownpackets); + + /** Processes a raw packet \c rawpack. + * Processes a raw packet \c rawpack. Every transmitter in the array \c trans of length \c numtrans + * is used to check if the packet is from our own session. The flag \c acceptownpackets indicates + * whether own packets should be accepted or ignored. + */ + int ProcessRawPacket(RTPRawPacket *rawpack,RTPTransmitter *trans[],int numtrans,bool acceptownpackets); + + /** Processes an RTPPacket instance \c rtppack which was received at time \c receivetime and + * which originated from \c senderaddres. + * Processes an RTPPacket instance \c rtppack which was received at time \c receivetime and + * which originated from \c senderaddres. The \c senderaddress parameter must be NULL if + * the packet was sent by the local participant. The flag \c stored indicates whether the packet + * was stored in the table or not. If so, the \c rtppack instance may not be deleted. + */ + int ProcessRTPPacket(RTPPacket *rtppack,const RTPTime &receivetime,const RTPAddress *senderaddress,bool *stored); + + /** Processes the RTCP compound packet \c rtcpcomppack which was received at time \c receivetime from \c senderaddress. + * Processes the RTCP compound packet \c rtcpcomppack which was received at time \c receivetime from \c senderaddress. + * The \c senderaddress parameter must be NULL if the packet was sent by the local participant. + */ + int ProcessRTCPCompoundPacket(RTCPCompoundPacket *rtcpcomppack,const RTPTime &receivetime, + const RTPAddress *senderaddress); + + /** Process the sender information of SSRC \c ssrc into the source table. + * Process the sender information of SSRC \c ssrc into the source table. The information was received + * at time \c receivetime from address \c senderaddress. The \c senderaddress} parameter must be NULL + * if the packet was sent by the local participant. + */ + int ProcessRTCPSenderInfo(uint32_t ssrc,const RTPNTPTime &ntptime,uint32_t rtptime, + uint32_t packetcount,uint32_t octetcount,const RTPTime &receivetime, + const RTPAddress *senderaddress); + + /** Processes the report block information which was sent by participant \c ssrc into the source table. + * Processes the report block information which was sent by participant \c ssrc into the source table. + * The information was received at time \c receivetime from address \c senderaddress The \c senderaddress + * parameter must be NULL if the packet was sent by the local participant. + */ + int ProcessRTCPReportBlock(uint32_t ssrc,uint8_t fractionlost,int32_t lostpackets, + uint32_t exthighseqnr,uint32_t jitter,uint32_t lsr, + uint32_t dlsr,const RTPTime &receivetime,const RTPAddress *senderaddress); + + /** Processes the non-private SDES item from source \c ssrc into the source table. + * Processes the non-private SDES item from source \c ssrc into the source table. The information was + * received at time \c receivetime from address \c senderaddress. The \c senderaddress parameter must + * be NULL if the packet was sent by the local participant. + */ + int ProcessSDESNormalItem(uint32_t ssrc,RTCPSDESPacket::ItemType t,size_t itemlength, + const void *itemdata,const RTPTime &receivetime,const RTPAddress *senderaddress); +#ifdef RTP_SUPPORT_SDESPRIV + /** Processes the SDES private item from source \c ssrc into the source table. + * Processes the SDES private item from source \c ssrc into the source table. The information was + * received at time \c receivetime from address \c senderaddress. The \c senderaddress + * parameter must be NULL if the packet was sent by the local participant. + */ + int ProcessSDESPrivateItem(uint32_t ssrc,size_t prefixlen,const void *prefixdata, + size_t valuelen,const void *valuedata,const RTPTime &receivetime, + const RTPAddress *senderaddress); +#endif //RTP_SUPPORT_SDESPRIV + /** Processes the BYE message for SSRC \c ssrc. + * Processes the BYE message for SSRC \c ssrc. The information was received at time \c receivetime from + * address \c senderaddress. The \c senderaddress parameter must be NULL if the packet was sent by the + * local participant. + */ + int ProcessBYE(uint32_t ssrc,size_t reasonlength,const void *reasondata,const RTPTime &receivetime, + const RTPAddress *senderaddress); + + /** If we heard from source \c ssrc, but no actual data was added to the source table (for example, if + * no report block was meant for us), this function can e used to indicate that something was received from + * this source. + * If we heard from source \c ssrc, but no actual data was added to the source table (for example, if + * no report block was meant for us), this function can e used to indicate that something was received from + * this source. This will prevent a premature timeout for this participant. The message was received at time + * \c receivetime from address \c senderaddress. The \c senderaddress parameter must be NULL if the + * packet was sent by the local participant. + */ + int UpdateReceiveTime(uint32_t ssrc,const RTPTime &receivetime,const RTPAddress *senderaddress); + + /** Starts the iteration over the participants by going to the first member in the table. + * Starts the iteration over the participants by going to the first member in the table. + * If a member was found, the function returns \c true, otherwise it returns \c false. + */ + bool GotoFirstSource(); + + /** Sets the current source to be the next source in the table. + * Sets the current source to be the next source in the table. If we're already at the last source, + * the function returns \c false, otherwise it returns \c true. + */ + bool GotoNextSource(); + + /** Sets the current source to be the previous source in the table. + * Sets the current source to be the previous source in the table. If we're at the first source, + * the function returns \c false, otherwise it returns \c true. + */ + bool GotoPreviousSource(); + + /** Sets the current source to be the first source in the table which has RTPPacket instances + * that we haven't extracted yet. + * Sets the current source to be the first source in the table which has RTPPacket instances + * that we haven't extracted yet. If no such member was found, the function returns \c false, + * otherwise it returns \c true. + */ + bool GotoFirstSourceWithData(); + + /** Sets the current source to be the next source in the table which has RTPPacket instances that + * we haven't extracted yet. + * Sets the current source to be the next source in the table which has RTPPacket instances that + * we haven't extracted yet. If no such member was found, the function returns \c false, + * otherwise it returns \c true. + */ + bool GotoNextSourceWithData(); + + /** Sets the current source to be the previous source in the table which has RTPPacket instances + * that we haven't extracted yet. + * Sets the current source to be the previous source in the table which has RTPPacket instances + * that we haven't extracted yet. If no such member was found, the function returns \c false, + * otherwise it returns \c true. + */ + bool GotoPreviousSourceWithData(); + + /** Returns the RTPSourceData instance for the currently selected participant. */ + RTPSourceData *GetCurrentSourceInfo(); + + /** Returns the RTPSourceData instance for the participant identified by \c ssrc, or + * NULL if no such entry exists. + */ + RTPSourceData *GetSourceInfo(uint32_t ssrc); + + /** Extracts the next packet from the received packets queue of the current participant. */ + RTPPacket *GetNextPacket(); + + /** Returns \c true if an entry for participant \c ssrc exists and \c false otherwise. */ + bool GotEntry(uint32_t ssrc); + + /** If present, it returns the RTPSourceData instance of the entry which was created by CreateOwnSSRC. */ + RTPSourceData *GetOwnSourceInfo() { return (RTPSourceData *)owndata; } + + /** Assuming that the current time is \c curtime, time out the members from whom we haven't heard + * during the previous time interval \c timeoutdelay. + */ + void Timeout(const RTPTime &curtime,const RTPTime &timeoutdelay); + + /** Assuming that the current time is \c curtime, remove the sender flag for senders from whom we haven't + * received any RTP packets during the previous time interval \c timeoutdelay. + */ + void SenderTimeout(const RTPTime &curtime,const RTPTime &timeoutdelay); + + /** Assuming that the current time is \c curtime, remove the members who sent a BYE packet more than + * the time interval \c timeoutdelay ago. + */ + void BYETimeout(const RTPTime &curtime,const RTPTime &timeoutdelay); + + /** Assuming that the current time is \c curtime, clear the SDES NOTE items which haven't been updated + * during the previous time interval \c timeoutdelay. + */ + void NoteTimeout(const RTPTime &curtime,const RTPTime &timeoutdelay); + + /** Combines the functions SenderTimeout, BYETimeout, Timeout and NoteTimeout. + * Combines the functions SenderTimeout, BYETimeout, Timeout and NoteTimeout. This is more efficient + * than calling all four functions since only one iteration is needed in this function. + */ + void MultipleTimeouts(const RTPTime &curtime,const RTPTime &sendertimeout, + const RTPTime &byetimeout,const RTPTime &generaltimeout, + const RTPTime ¬etimeout); + + /** Returns the number of participants which are marked as a sender. */ + int GetSenderCount() const { return sendercount; } + + /** Returns the total number of entries in the source table. */ + int GetTotalCount() const { return totalcount; } + + /** Returns the number of members which have been validated and which haven't sent a BYE packet yet. */ + int GetActiveMemberCount() const { return activecount; } +#ifdef RTPDEBUG + void Dump(); + void SafeCountTotal(); + void SafeCountSenders(); + void SafeCountActive(); +#endif // RTPDEBUG +protected: + /** Is called when an RTP packet is about to be processed. */ + virtual void OnRTPPacket(RTPPacket *pack,const RTPTime &receivetime, const RTPAddress *senderaddress) { } + + /** Is called when an RTCP compound packet is about to be processed. */ + virtual void OnRTCPCompoundPacket(RTCPCompoundPacket *pack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an SSRC collision was detected. + * Is called when an SSRC collision was detected. The instance \c srcdat is the one present in + * the table, the address \c senderaddress is the one that collided with one of the addresses + * and \c isrtp indicates against which address of \c srcdat the check failed. + */ + virtual void OnSSRCCollision(RTPSourceData *srcdat,const RTPAddress *senderaddress,bool isrtp) { } + + /** Is called when another CNAME was received than the one already present for source \c srcdat. */ + virtual void OnCNAMECollision(RTPSourceData *srcdat,const RTPAddress *senderaddress, + const uint8_t *cname,size_t cnamelength) { } + + /** Is called when a new entry \c srcdat is added to the source table. */ + virtual void OnNewSource(RTPSourceData *srcdat) { } + + /** Is called when the entry \c srcdat is about to be deleted from the source table. */ + virtual void OnRemoveSource(RTPSourceData *srcdat) { } + + /** Is called when participant \c srcdat is timed out. */ + virtual void OnTimeout(RTPSourceData *srcdat) { } + + /** Is called when participant \c srcdat is timed after having sent a BYE packet. */ + virtual void OnBYETimeout(RTPSourceData *srcdat) { } + + /** Is called when a BYE packet has been processed for source \c srcdat. */ + virtual void OnBYEPacket(RTPSourceData *srcdat) { } + + /** Is called when an RTCP APP packet \c apppacket has been received at time \c receivetime + * from address \c senderaddress. + */ + virtual void OnAPPPacket(RTCPAPPPacket *apppacket,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an unknown RTCP packet type was detected. */ + virtual void OnUnknownPacketType(RTCPPacket *rtcppack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when an unknown packet format for a known packet type was detected. */ + virtual void OnUnknownPacketFormat(RTCPPacket *rtcppack,const RTPTime &receivetime, + const RTPAddress *senderaddress) { } + + /** Is called when the SDES NOTE item for source \c srcdat has been timed out. */ + virtual void OnNoteTimeout(RTPSourceData *srcdat) { } +private: + void ClearSourceList(); + int ObtainSourceDataInstance(uint32_t ssrc,RTPInternalSourceData **srcdat,bool *created); + int GetRTCPSourceData(uint32_t ssrc,const RTPAddress *senderaddress,RTPInternalSourceData **srcdat,bool *newsource); + bool CheckCollision(RTPInternalSourceData *srcdat,const RTPAddress *senderaddress,bool isrtp); + + RTPKeyHashTable<const uint32_t,RTPInternalSourceData*,RTPSources_GetHashIndex,RTPSOURCES_HASHSIZE> sourcelist; + + int sendercount; + int totalcount; + int activecount; + +#ifdef RTP_SUPPORT_PROBATION + ProbationType probationtype; +#endif // RTP_SUPPORT_PROBATION + + RTPInternalSourceData *owndata; +}; + +#endif // RTPSOURCES_H + diff --git a/src/rtpstructs.h b/src/rtpstructs.h new file mode 100644 index 0000000..3c0fa2d --- /dev/null +++ b/src/rtpstructs.h @@ -0,0 +1,123 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpstructs.h + */ + +#ifndef RTPSTRUCTS_H + +#define RTPSTRUCTS_H + +#include "rtpconfig.h" +#include "rtptypes.h" + +struct RTPHeader +{ +#ifdef RTP_BIG_ENDIAN + uint8_t version:2; + uint8_t padding:1; + uint8_t extension:1; + uint8_t csrccount:4; + + uint8_t marker:1; + uint8_t payloadtype:7; +#else // little endian + uint8_t csrccount:4; + uint8_t extension:1; + uint8_t padding:1; + uint8_t version:2; + + uint8_t payloadtype:7; + uint8_t marker:1; +#endif // RTP_BIG_ENDIAN + + uint16_t sequencenumber; + uint32_t timestamp; + uint32_t ssrc; +}; + +struct RTPExtensionHeader +{ + uint16_t extid; + uint16_t length; +}; + +struct RTPSourceIdentifier +{ + uint32_t ssrc; +}; + +struct RTCPCommonHeader +{ +#ifdef RTP_BIG_ENDIAN + uint8_t version:2; + uint8_t padding:1; + uint8_t count:5; +#else // little endian + uint8_t count:5; + uint8_t padding:1; + uint8_t version:2; +#endif // RTP_BIG_ENDIAN + + uint8_t packettype; + uint16_t length; +}; + +struct RTCPSenderReport +{ + uint32_t ntptime_msw; + uint32_t ntptime_lsw; + uint32_t rtptimestamp; + uint32_t packetcount; + uint32_t octetcount; +}; + +struct RTCPReceiverReport +{ + uint32_t ssrc; // Identifies about which SSRC's data this report is... + uint8_t fractionlost; + uint8_t packetslost[3]; + uint32_t exthighseqnr; + uint32_t jitter; + uint32_t lsr; + uint32_t dlsr; +}; + +struct RTCPSDESHeader +{ + uint8_t sdesid; + uint8_t length; +}; + +#endif // RTPSTRUCTS + diff --git a/src/rtptimeutilities.cpp b/src/rtptimeutilities.cpp new file mode 100644 index 0000000..f8f0dd3 --- /dev/null +++ b/src/rtptimeutilities.cpp @@ -0,0 +1,52 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#if (defined(WIN32) || defined(_WIN32_WCE)) + +#include "rtptimeutilities.h" +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +RTPTimeInitializer::RTPTimeInitializer() +{ +#ifdef RTPDEBUG + std::cout << "RTPTimeInitializer: Initializing RTPTime::CurrentTime()" << std::endl; +#endif // RTPDEBUG + RTPTime curtime = RTPTime::CurrentTime(); + dummy = -1; +} + +RTPTimeInitializer timeinit; + +#endif // WIN32 || _WIN32_WCE + diff --git a/src/rtptimeutilities.h b/src/rtptimeutilities.h new file mode 100644 index 0000000..527ef87 --- /dev/null +++ b/src/rtptimeutilities.h @@ -0,0 +1,319 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtptimeutilities.h + */ + +#ifndef RTPTIMEUTILITIES_H + +#define RTPTIMEUTILITIES_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#ifndef WIN32 + #include <sys/time.h> + #include <time.h> +#else + #ifndef _WIN32_WCE + #include <sys/timeb.h> + #endif // _WIN32_WINCE +#endif // WIN32 + +#define RTP_NTPTIMEOFFSET 2208988800UL + +/** + * This is a simple wrapper for the most significant word (MSW) and least + * significant word (LSW) of an NTP timestamp. + */ +class RTPNTPTime +{ +public: + /** This constructor creates and instance with MSW \c m and LSW \c l. */ + RTPNTPTime(uint32_t m,uint32_t l) { msw = m ; lsw = l; } + + /** Returns the most significant word. */ + uint32_t GetMSW() const { return msw; } + + /** Returns the least significant word. */ + uint32_t GetLSW() const { return lsw; } +private: + uint32_t msw,lsw; +}; + +/** This class is used to specify wallclock time, delay intervals etc. + * This class is used to specify wallclock time, delay intervals etc. + * It stores a number of seconds and a number of microseconds. + */ +class RTPTime +{ +public: + /** Returns an RTPTime instance representing the current wallclock time. + * Returns an RTPTime instance representing the current wallclock time. This is expressed + * as a number of seconds since 00:00:00 UTC, January 1, 1970. + */ + static RTPTime CurrentTime(); + + /** This function waits the amount of time specified in \c delay. */ + static void Wait(const RTPTime &delay); + + /** Creates an RTPTime instance representing \c t, which is expressed in units of seconds. */ + RTPTime(double t); + + /** Creates an instance that corresponds to \c ntptime. + * Creates an instance that corresponds to \c ntptime. If + * the conversion cannot be made, both the seconds and the + * microseconds are set to zero. + */ + RTPTime(RTPNTPTime ntptime); + + /** Creates an instance corresponding to \c seconds and \c microseconds. */ + RTPTime(uint32_t seconds,uint32_t microseconds) { sec = seconds; microsec = microseconds; } + + /** Returns the number of seconds stored in this instance. */ + uint32_t GetSeconds() const { return sec; } + + /** Returns the number of microseconds stored in this instance. */ + uint32_t GetMicroSeconds() const { return microsec; } + + /** Returns the time stored in this instance, expressed in units of seconds. */ + double GetDouble() const { return (((double)sec)+(((double)microsec)/1000000.0)); } + + /** Returns the NTP time corresponding to the time stored in this instance. */ + RTPNTPTime GetNTPTime() const; + + RTPTime &operator-=(const RTPTime &t); + RTPTime &operator+=(const RTPTime &t); + bool operator<(const RTPTime &t) const; + bool operator>(const RTPTime &t) const; + bool operator<=(const RTPTime &t) const; + bool operator>=(const RTPTime &t) const; +private: +#if (defined(WIN32) || defined(_WIN32_WCE)) + static inline unsigned __int64 CalculateMicroseconds(unsigned __int64 performancecount,unsigned __int64 performancefrequency); +#endif // WIN32 || _WIN32_WCE + + uint32_t sec,microsec; +}; + +inline RTPTime::RTPTime(double t) +{ + sec = (uint32_t)t; + + double t2 = t-((double)sec); + t2 *= 1000000.0; + microsec = (uint32_t)t2; +} + +inline RTPTime::RTPTime(RTPNTPTime ntptime) +{ + if (ntptime.GetMSW() < RTP_NTPTIMEOFFSET) + { + sec = 0; + microsec = 0; + } + else + { + sec = ntptime.GetMSW() - RTP_NTPTIMEOFFSET; + + double x = (double)ntptime.GetLSW(); + x /= (65536.0*65536.0); + x *= 1000000.0; + microsec = (uint32_t)x; + } +} + +#if (defined(WIN32) || defined(_WIN32_WCE)) + +inline unsigned __int64 RTPTime::CalculateMicroseconds(unsigned __int64 performancecount,unsigned __int64 performancefrequency) +{ + unsigned __int64 f = performancefrequency; + unsigned __int64 a = performancecount; + unsigned __int64 b = a/f; + unsigned __int64 c = a%f; // a = b*f+c => (a*1000000)/f = b*1000000+(c*1000000)/f + + return b*1000000ui64+(c*1000000ui64)/f; +} + +inline RTPTime RTPTime::CurrentTime() +{ + static int inited = 0; + static unsigned __int64 microseconds, initmicroseconds; + static LARGE_INTEGER performancefrequency; + + unsigned __int64 emulate_microseconds, microdiff; + SYSTEMTIME systemtime; + FILETIME filetime; + + LARGE_INTEGER performancecount; + + QueryPerformanceCounter(&performancecount); + + if(!inited){ + inited = 1; + QueryPerformanceFrequency(&performancefrequency); + GetSystemTime(&systemtime); + SystemTimeToFileTime(&systemtime,&filetime); + microseconds = ( ((unsigned __int64)(filetime.dwHighDateTime) << 32) + (unsigned __int64)(filetime.dwLowDateTime) ) / 10ui64; + microseconds-= 11644473600000000ui64; // EPOCH + initmicroseconds = CalculateMicroseconds(performancecount.QuadPart, performancefrequency.QuadPart); + } + + emulate_microseconds = CalculateMicroseconds(performancecount.QuadPart, performancefrequency.QuadPart); + + microdiff = emulate_microseconds - initmicroseconds; + + return RTPTime((uint32_t)((microseconds + microdiff) / 1000000ui64),((uint32_t)((microseconds + microdiff) % 1000000ui64))); +} + +inline void RTPTime::Wait(const RTPTime &delay) +{ + DWORD t; + + t = ((DWORD)delay.GetSeconds())*1000+(((DWORD)delay.GetMicroSeconds())/1000); + Sleep(t); +} + +class RTPTimeInitializer +{ +public: + RTPTimeInitializer(); + void Dummy() { dummy++; } +private: + int dummy; +}; + +extern RTPTimeInitializer timeinit; + +#else // unix style + +inline RTPTime RTPTime::CurrentTime() +{ + struct timeval tv; + + gettimeofday(&tv,0); + return RTPTime((uint32_t)tv.tv_sec,(uint32_t)tv.tv_usec); +} + +inline void RTPTime::Wait(const RTPTime &delay) +{ + struct timespec req,rem; + + req.tv_sec = (time_t)delay.sec; + req.tv_nsec = ((long)delay.microsec)*1000; + nanosleep(&req,&rem); +} + +#endif // WIN32 + +inline RTPTime &RTPTime::operator-=(const RTPTime &t) +{ + sec -= t.sec; + if (t.microsec > microsec) + { + sec--; + microsec += 1000000; + } + microsec -= t.microsec; + return *this; +} + +inline RTPTime &RTPTime::operator+=(const RTPTime &t) +{ + sec += t.sec; + microsec += t.microsec; + if (microsec >= 1000000) + { + sec++; + microsec -= 1000000; + } + return *this; +} + +inline RTPNTPTime RTPTime::GetNTPTime() const +{ + uint32_t msw = sec+RTP_NTPTIMEOFFSET; + uint32_t lsw; + double x; + + x = microsec/1000000.0; + x *= (65536.0*65536.0); + lsw = (uint32_t)x; + + return RTPNTPTime(msw,lsw); +} + +inline bool RTPTime::operator<(const RTPTime &t) const +{ + if (sec < t.sec) + return true; + if (sec > t.sec) + return false; + if (microsec < t.microsec) + return true; + return false; +} + +inline bool RTPTime::operator>(const RTPTime &t) const +{ + if (sec > t.sec) + return true; + if (sec < t.sec) + return false; + if (microsec > t.microsec) + return true; + return false; +} + +inline bool RTPTime::operator<=(const RTPTime &t) const +{ + if (sec < t.sec) + return true; + if (sec > t.sec) + return false; + if (microsec <= t.microsec) + return true; + return false; +} + +inline bool RTPTime::operator>=(const RTPTime &t) const +{ + if (sec > t.sec) + return true; + if (sec < t.sec) + return false; + if (microsec >= t.microsec) + return true; + return false; +} +#endif // RTPTIMEUTILITIES_H + diff --git a/src/rtptransmitter.h b/src/rtptransmitter.h new file mode 100644 index 0000000..bd2f3ea --- /dev/null +++ b/src/rtptransmitter.h @@ -0,0 +1,249 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtptransmitter.h + */ + +#ifndef RTPTRANSMITTER_H + +#define RTPTRANSMITTER_H + +#include "rtpconfig.h" +#include "rtptypes.h" +#include "rtpmemoryobject.h" + +class RTPRawPacket; +class RTPAddress; +class RTPTransmissionParams; +class RTPTime; +class RTPTransmissionInfo; + +/** Abstract class from which actual transmission components should be derived. + * Abstract class from which actual transmission components should be derived. + * The abstract class RTPTransmitter specifies the interface for + * actual transmission components. Currently, two implementations exist: + * an UDP over IPv4 transmitter and an UDP over IPv6 transmitter. + */ +class RTPTransmitter : public RTPMemoryObject +{ +public: + /** Used to identify a specific transmitter. + * If UserDefinedProto is used in the RTPSession::Create function, the RTPSession + * virtual member function NewUserDefinedTransmitter will be called to create + * a transmission component. + */ + enum TransmissionProtocol + { + IPv4UDPProto, /**< Specifies the internal UDP over IPv4 transmitter. */ + IPv6UDPProto, /**< Specifies the internal UDP over IPv6 transmitter. */ + UserDefinedProto /**< Specifies a user defined, external transmitter. */ + }; + + /** Three kind of receive modes can be specified. */ + enum ReceiveMode + { + AcceptAll, /**< All incoming data is accepted, no matter where it originated from. */ + AcceptSome, /**< Only data coming from specific sources will be accepted. */ + IgnoreSome /**< All incoming data is accepted, except for data coming from a specific set of sources. */ + }; +protected: + /** Constructor in which you can specify a memory manager to use. */ + RTPTransmitter(RTPMemoryManager *mgr) : RTPMemoryObject(mgr) { } +public: + virtual ~RTPTransmitter() { } + + /** This function must be called before the transmission component can be used. + * This function must be called before the transmission component can be used. Depending on + * the value of \c threadsafe, the component will be created for thread-safe usage or not. + */ + virtual int Init(bool threadsafe) = 0; + + /** Prepares the component to be used. + * Prepares the component to be used. The parameter \c maxpacksize specifies the maximum size + * a packet can have: if the packet is larger it will not be transmitted. The \c transparams + * parameter specifies a pointer to an RTPTransmissionParams instance. This is also an abstract + * class and each actual component will define its own parameters by inheriting a class + * from RTPTransmissionParams. If \c transparams is NULL, the default transmission parameters + * for the component will be used. + */ + virtual int Create(size_t maxpacksize,const RTPTransmissionParams *transparams) = 0; + + /** By calling this function, buffers are cleared and the component cannot be used anymore. + * By calling this function, buffers are cleared and the component cannot be used anymore. + * Only when the Create function is called again can the component be used again. */ + virtual void Destroy() = 0; + + /** Returns additional information about the transmitter. + * This function returns an instance of a subclass of RTPTransmissionInfo which will give + * some additional information about the transmitter (a list of local IP addresses for example). + * Currently, either an instance of RTPUDPv4TransmissionInfo or RTPUDPv6TransmissionInfo is + * returned, depending on the type of the transmitter. The user has to deallocate the returned + * instance when it is no longer needed. + */ + virtual RTPTransmissionInfo *GetTransmissionInfo() = 0; + + /** Looks up the local host name. + * Looks up the local host name based upon internal information about the local host's + * addresses. This function might take some time since a DNS query might be done. \c bufferlength + * should initially contain the number of bytes that may be stored in \c buffer. If the function + * succeeds, \c bufferlength is set to the number of bytes stored in \c buffer. Note that the data + * in \c buffer is not NULL-terminated. If the function fails because the buffer isn't large enough, + * it returns \c ERR_RTP_TRANS_BUFFERLENGTHTOOSMALL and stores the number of bytes needed in + * \c bufferlength. + */ + virtual int GetLocalHostName(uint8_t *buffer,size_t *bufferlength) = 0; + + /** Returns \c true if the address specified by \c addr is one of the addresses of the transmitter. */ + virtual bool ComesFromThisTransmitter(const RTPAddress *addr) = 0; + + /** Returns the amount of bytes that will be added to the RTP packet by the underlying layers (excluding + * the link layer). */ + virtual size_t GetHeaderOverhead() = 0; + + /** Checks for incoming data and stores it. */ + virtual int Poll() = 0; + + /** Waits until incoming data is detected. + * Waits at most a time \c delay until incoming data has been detected. If \c dataavailable is not NULL, + * it should be set to \c true if data was actually read and to \c false otherwise. + */ + virtual int WaitForIncomingData(const RTPTime &delay,bool *dataavailable = 0) = 0; + + /** If the previous function has been called, this one aborts the waiting. */ + virtual int AbortWait() = 0; + + /** Send a packet with length \c len containing \c data to all RTP addresses of the current destination list. */ + virtual int SendRTPData(const void *data,size_t len) = 0; + + /** Send a packet with length \c len containing \c data to all RTCP addresses of the current destination list. */ + virtual int SendRTCPData(const void *data,size_t len) = 0; + + /** Adds the address specified by \c addr to the list of destinations. */ + virtual int AddDestination(const RTPAddress &addr) = 0; + + /** Deletes the address specified by \c addr from the list of destinations. */ + virtual int DeleteDestination(const RTPAddress &addr) = 0; + + /** Clears the list of destinations. */ + virtual void ClearDestinations() = 0; + + /** Returns \c true if the transmission component supports multicasting. */ + virtual bool SupportsMulticasting() = 0; + + /** Joins the multicast group specified by \c addr. */ + virtual int JoinMulticastGroup(const RTPAddress &addr) = 0; + + /** Leaves the multicast group specified by \c addr. */ + virtual int LeaveMulticastGroup(const RTPAddress &addr) = 0; + + /** Leaves all the multicast groups that have been joined. */ + virtual void LeaveAllMulticastGroups() = 0; + + /** Sets the receive mode. + * Sets the receive mode to \c m, which is one of the following: RTPTransmitter::AcceptAll, + * RTPTransmitter::AcceptSome or RTPTransmitter::IgnoreSome. Note that if the receive + * mode is changed, all information about the addresses to ignore to accept is lost. + */ + virtual int SetReceiveMode(RTPTransmitter::ReceiveMode m) = 0; + + /** Adds \c addr to the list of addresses to ignore. */ + virtual int AddToIgnoreList(const RTPAddress &addr) = 0; + + /** Deletes \c addr from the list of addresses to accept. */ + virtual int DeleteFromIgnoreList(const RTPAddress &addr)= 0; + + /** Clears the list of addresses to ignore. */ + virtual void ClearIgnoreList() = 0; + + /** Adds \c addr to the list of addresses to accept. */ + virtual int AddToAcceptList(const RTPAddress &addr) = 0; + + /** Deletes \c addr from the list of addresses to accept. */ + virtual int DeleteFromAcceptList(const RTPAddress &addr) = 0; + + /** Clears the list of addresses to accept. */ + virtual void ClearAcceptList() = 0; + + /** Sets the maximum packet size which the transmitter should allow to \c s. */ + virtual int SetMaximumPacketSize(size_t s) = 0; + + /** Returns \c true if packets can be obtained using the GetNextPacket member function. */ + virtual bool NewDataAvailable() = 0; + + /** Returns the raw data of a received RTP packet (received during the Poll function) + * in an RTPRawPacket instance. */ + virtual RTPRawPacket *GetNextPacket() = 0; +#ifdef RTPDEBUG + virtual void Dump() = 0; +#endif // RTPDEBUG +}; + +/** Base class for transmission parameters. + * This class is an abstract class which will have a specific implementation for a + * specific kind of transmission component. All actual implementations inherit the + * GetTransmissionProtocol function which identifies the component type for which + * these parameters are valid. + */ +class RTPTransmissionParams +{ +protected: + RTPTransmissionParams(RTPTransmitter::TransmissionProtocol p) { protocol = p; } +public: + virtual ~RTPTransmissionParams() { } + + /** Returns the transmitter type for which these parameters are valid. */ + RTPTransmitter::TransmissionProtocol GetTransmissionProtocol() const { return protocol; } +private: + RTPTransmitter::TransmissionProtocol protocol; +}; + +/** Base class for additional information about the transmitter. + * This class is an abstract class which will have a specific implementation for a + * specific kind of transmission component. All actual implementations inherit the + * GetTransmissionProtocol function which identifies the component type for which + * these parameters are valid. + */ +class RTPTransmissionInfo +{ +protected: + RTPTransmissionInfo(RTPTransmitter::TransmissionProtocol p) { protocol = p; } +public: + virtual ~RTPTransmissionInfo() { } + /** Returns the transmitter type for which these parameters are valid. */ + RTPTransmitter::TransmissionProtocol GetTransmissionProtocol() const { return protocol; } +private: + RTPTransmitter::TransmissionProtocol protocol; +}; + +#endif // RTPTRANSMITTER_H + diff --git a/src/rtptypes.h b/src/rtptypes.h new file mode 100644 index 0000000..e5377dd --- /dev/null +++ b/src/rtptypes.h @@ -0,0 +1,37 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include "rtptypes_unix.h" +#else + #include "rtptypes_win.h" +#endif // WIN32 diff --git a/src/rtptypes_win.h b/src/rtptypes_win.h new file mode 100644 index 0000000..66e20b2 --- /dev/null +++ b/src/rtptypes_win.h @@ -0,0 +1,62 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#ifndef RTPTYPES_H + +#define RTPTYPES_H + +#ifndef _WIN32_WCE + #include <winsock2.h> + #include <ws2tcpip.h> + #include <sys/types.h> +#else + #include <winsock2.h> + #include <ws2tcpip.h> +#endif // _WIN32_WCE + +#ifndef INTTYPES_DEFINED + +#define INTTYPES_DEFINED + +typedef char int8_t; +typedef unsigned char uint8_t; +typedef short int16_t; +typedef unsigned short uint16_t; +typedef int int32_t; +typedef unsigned int uint32_t; +typedef __int64 int64_t; +typedef unsigned __int64 uint64_t; + +#endif // INTTYPES_DEFINED + +#endif // RTPTYPES_H + diff --git a/src/rtpudpv4transmitter.cpp b/src/rtpudpv4transmitter.cpp new file mode 100644 index 0000000..d421885 --- /dev/null +++ b/src/rtpudpv4transmitter.cpp @@ -0,0 +1,1925 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpudpv4transmitter.h" +#include "rtprawpacket.h" +#include "rtpipv4address.h" +#include "rtptimeutilities.h" +#include "rtpdefines.h" +#include <stdio.h> +#if (defined(WIN32) || defined(_WIN32_WCE)) + #define RTPSOCKERR INVALID_SOCKET + #define RTPCLOSE(x) closesocket(x) + #define RTPSOCKLENTYPE int + #define RTPIOCTL ioctlsocket +#else // not Win32 + #include <sys/socket.h> + #include <netinet/in.h> + #include <arpa/inet.h> + #include <sys/ioctl.h> + #include <net/if.h> + #include <string.h> + #include <netdb.h> + #include <unistd.h> + + #ifdef RTP_HAVE_SYS_FILIO + #include <sys/filio.h> + #endif // RTP_HAVE_SYS_FILIO + #ifdef RTP_HAVE_SYS_SOCKIO + #include <sys/sockio.h> + #endif // RTP_HAVE_SYS_SOCKIO + #ifdef RTP_SUPPORT_IFADDRS + #include <ifaddrs.h> + #endif // RTP_SUPPORT_IFADDRS + + #define RTPSOCKERR -1 + #define RTPCLOSE(x) close(x) + + #ifdef RTP_SOCKLENTYPE_UINT + #define RTPSOCKLENTYPE unsigned int + #else + #define RTPSOCKLENTYPE int + #endif // RTP_SOCKLENTYPE_UINT + + #define RTPIOCTL ioctl +#endif // WIN32 +#ifdef RTPDEBUG + #include <iostream> +#endif // RTPDEBUG + +#include "rtpdebug.h" + +#include <iostream> + +#define RTPUDPV4TRANS_MAXPACKSIZE 65535 +#define RTPUDPV4TRANS_IFREQBUFSIZE 8192 + +#define RTPUDPV4TRANS_IS_MCASTADDR(x) (((x)&0xF0000000) == 0xE0000000) + +#define RTPUDPV4TRANS_MCASTMEMBERSHIP(socket,type,mcastip,status) {\ + struct ip_mreq mreq;\ + \ + mreq.imr_multiaddr.s_addr = htonl(mcastip);\ + mreq.imr_interface.s_addr = htonl(mcastifaceIP);\ + status = setsockopt(socket,IPPROTO_IP,type,(const char *)&mreq,sizeof(struct ip_mreq));\ + } +#ifdef RTP_SUPPORT_THREAD + #define MAINMUTEX_LOCK { if (threadsafe) mainmutex.Lock(); } + #define MAINMUTEX_UNLOCK { if (threadsafe) mainmutex.Unlock(); } + #define WAITMUTEX_LOCK { if (threadsafe) waitmutex.Lock(); } + #define WAITMUTEX_UNLOCK { if (threadsafe) waitmutex.Unlock(); } +#else + #define MAINMUTEX_LOCK + #define MAINMUTEX_UNLOCK + #define WAITMUTEX_LOCK + #define WAITMUTEX_UNLOCK +#endif // RTP_SUPPORT_THREAD + +RTPUDPv4Transmitter::RTPUDPv4Transmitter(RTPMemoryManager *mgr) : RTPTransmitter(mgr),destinations(mgr,RTPMEM_TYPE_CLASS_DESTINATIONLISTHASHELEMENT),multicastgroups(mgr,RTPMEM_TYPE_CLASS_MULTICASTHASHELEMENT), + acceptignoreinfo(mgr,RTPMEM_TYPE_CLASS_ACCEPTIGNOREHASHELEMENT) +{ + created = false; + init = false; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTPUDPv4Transmitter::~RTPUDPv4Transmitter() +{ + Destroy(); +} + +int RTPUDPv4Transmitter::Init(bool tsafe) +{ + if (init) + return ERR_RTP_UDPV4TRANS_ALREADYINIT; + +#ifdef RTP_SUPPORT_THREAD + threadsafe = tsafe; + if (threadsafe) + { + int status; + + status = mainmutex.Init(); + if (status < 0) + return ERR_RTP_UDPV4TRANS_CANTINITMUTEX; + status = waitmutex.Init(); + if (status < 0) + return ERR_RTP_UDPV4TRANS_CANTINITMUTEX; + } +#else + if (tsafe) + return ERR_RTP_NOTHREADSUPPORT; +#endif // RTP_SUPPORT_THREAD + + init = true; + return 0; +} + +int RTPUDPv4Transmitter::Create(size_t maximumpacketsize,const RTPTransmissionParams *transparams) +{ + const RTPUDPv4TransmissionParams *params,defaultparams; + struct sockaddr_in addr; + RTPSOCKLENTYPE size; + int status; + + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_ALREADYCREATED; + } + + // Obtain transmission parameters + + if (transparams == 0) + params = &defaultparams; + else + { + if (transparams->GetTransmissionProtocol() != RTPTransmitter::IPv4UDPProto) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_ILLEGALPARAMETERS; + } + params = (const RTPUDPv4TransmissionParams *)transparams; + } + + // Check if portbase is even + if (params->GetPortbase()%2 != 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_PORTBASENOTEVEN; + } + + // create sockets + + rtpsock = socket(PF_INET,SOCK_DGRAM,0); + if (rtpsock == RTPSOCKERR) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTCREATESOCKET; + } + rtcpsock = socket(PF_INET,SOCK_DGRAM,0); + if (rtcpsock == RTPSOCKERR) + { + RTPCLOSE(rtpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTCREATESOCKET; + } + + // set socket buffer sizes + + size = params->GetRTPReceiveBuffer(); + if (setsockopt(rtpsock,SOL_SOCKET,SO_RCVBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTSETRTPRECEIVEBUF; + } + size = params->GetRTPSendBuffer(); + if (setsockopt(rtpsock,SOL_SOCKET,SO_SNDBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTSETRTPTRANSMITBUF; + } + size = params->GetRTCPReceiveBuffer(); + if (setsockopt(rtcpsock,SOL_SOCKET,SO_RCVBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTSETRTCPRECEIVEBUF; + } + size = params->GetRTCPSendBuffer(); + if (setsockopt(rtcpsock,SOL_SOCKET,SO_SNDBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTSETRTCPTRANSMITBUF; + } + + // bind sockets + + bindIP = params->GetBindIP(); + mcastifaceIP = params->GetMulticastInterfaceIP(); + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + addr.sin_port = htons(params->GetPortbase()); + addr.sin_addr.s_addr = htonl(bindIP); + if (bind(rtpsock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTBINDRTPSOCKET; + } + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + addr.sin_port = htons(params->GetPortbase()+1); + addr.sin_addr.s_addr = htonl(bindIP); + if (bind(rtcpsock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_CANTBINDRTCPSOCKET; + } + + // Try to obtain local IP addresses + + localIPs = params->GetLocalIPList(); + if (localIPs.empty()) // User did not provide list of local IP addresses, calculate them + { + int status; + + if ((status = CreateLocalIPList()) < 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return status; + } +#ifdef RTPDEBUG + std::cout << "Found these local IP addresses:" << std::endl; + + std::list<uint32_t>::const_iterator it; + + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + RTPIPv4Address a(*it); + + std::cout << a.GetAddressString() << std::endl; + } +#endif // RTPDEBUG + } + +#ifdef RTP_SUPPORT_IPV4MULTICAST + if (SetMulticastTTL(params->GetMulticastTTL())) + supportsmulticasting = true; + else + supportsmulticasting = false; +#else // no multicast support enabled + supportsmulticasting = false; +#endif // RTP_SUPPORT_IPV4MULTICAST + + if ((status = CreateAbortDescriptors()) < 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return status; + } + + if (maximumpacketsize > RTPUDPV4TRANS_MAXPACKSIZE) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + DestroyAbortDescriptors(); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_SPECIFIEDSIZETOOBIG; + } + + maxpacksize = maximumpacketsize; + portbase = params->GetPortbase(); + multicastTTL = params->GetMulticastTTL(); + receivemode = RTPTransmitter::AcceptAll; + + localhostname = 0; + localhostnamelength = 0; + + waitingfordata = false; + created = true; + MAINMUTEX_UNLOCK + return 0; +} + +void RTPUDPv4Transmitter::Destroy() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK; + return; + } + + if (localhostname) + { + RTPDeleteByteArray(localhostname,GetMemoryManager()); + localhostname = 0; + localhostnamelength = 0; + } + + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + destinations.Clear(); +#ifdef RTP_SUPPORT_IPV4MULTICAST + multicastgroups.Clear(); +#endif // RTP_SUPPORT_IPV4MULTICAST + FlushPackets(); + ClearAcceptIgnoreInfo(); + localIPs.clear(); + created = false; + + if (waitingfordata) + { + AbortWaitInternal(); + DestroyAbortDescriptors(); + MAINMUTEX_UNLOCK + WAITMUTEX_LOCK // to make sure that the WaitForIncomingData function ended + WAITMUTEX_UNLOCK + } + else + DestroyAbortDescriptors(); + + MAINMUTEX_UNLOCK +} + +RTPTransmissionInfo *RTPUDPv4Transmitter::GetTransmissionInfo() +{ + if (!init) + return 0; + + MAINMUTEX_LOCK + RTPTransmissionInfo *tinf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPTRANSMISSIONINFO) RTPUDPv4TransmissionInfo(localIPs,rtpsock,rtcpsock); + MAINMUTEX_UNLOCK + return tinf; +} + +int RTPUDPv4Transmitter::GetLocalHostName(uint8_t *buffer,size_t *bufferlength) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + + if (localhostname == 0) + { + if (localIPs.empty()) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOLOCALIPS; + } + + std::list<uint32_t>::const_iterator it; + std::list<std::string> hostnames; + + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + bool founddouble = false; + bool foundentry = true; + + while (!founddouble && foundentry) + { + struct hostent *he; + uint8_t addr[4]; + uint32_t ip = (*it); + + addr[0] = (uint8_t)((ip>>24)&0xFF); + addr[1] = (uint8_t)((ip>>16)&0xFF); + addr[2] = (uint8_t)((ip>>8)&0xFF); + addr[3] = (uint8_t)(ip&0xFF); + he = gethostbyaddr((char *)addr,4,AF_INET); + if (he != 0) + { + std::string hname = std::string(he->h_name); + std::list<std::string>::const_iterator it; + + for (it = hostnames.begin() ; !founddouble && it != hostnames.end() ; it++) + if ((*it) == hname) + founddouble = true; + + if (!founddouble) + hostnames.push_back(hname); + + int i = 0; + while (!founddouble && he->h_aliases[i] != 0) + { + std::string hname = std::string(he->h_aliases[i]); + + for (it = hostnames.begin() ; !founddouble && it != hostnames.end() ; it++) + if ((*it) == hname) + founddouble = true; + + if (!founddouble) + { + hostnames.push_back(hname); + i++; + } + } + } + else + foundentry = false; + } + } + + bool found = false; + + if (!hostnames.empty()) // try to select the most appropriate hostname + { + std::list<std::string>::const_iterator it; + + hostnames.sort(); + for (it = hostnames.begin() ; !found && it != hostnames.end() ; it++) + { + if ((*it).find('.') != std::string::npos) + { + found = true; + localhostnamelength = (*it).length(); + localhostname = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) uint8_t [localhostnamelength+1]; + if (localhostname == 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_OUTOFMEM; + } + memcpy(localhostname,(*it).c_str(),localhostnamelength); + localhostname[localhostnamelength] = 0; + } + } + } + + if (!found) // use an IP address + { + uint32_t ip; + int len; + char str[16]; + + it = localIPs.begin(); + ip = (*it); + + RTP_SNPRINTF(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + len = strlen(str); + + localhostnamelength = len; + localhostname = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) uint8_t [localhostnamelength + 1]; + if (localhostname == 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_OUTOFMEM; + } + memcpy(localhostname,str,localhostnamelength); + localhostname[localhostnamelength] = 0; + } + } + + if ((*bufferlength) < localhostnamelength) + { + *bufferlength = localhostnamelength; // tell the application the required size of the buffer + MAINMUTEX_UNLOCK + return ERR_RTP_TRANS_BUFFERLENGTHTOOSMALL; + } + + memcpy(buffer,localhostname,localhostnamelength); + *bufferlength = localhostnamelength; + + MAINMUTEX_UNLOCK + return 0; +} + +bool RTPUDPv4Transmitter::ComesFromThisTransmitter(const RTPAddress *addr) +{ + if (!init) + return false; + + if (addr == 0) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (created && addr->GetAddressType() == RTPAddress::IPv4Address) + { + const RTPIPv4Address *addr2 = (const RTPIPv4Address *)addr; + bool found = false; + std::list<uint32_t>::const_iterator it; + + it = localIPs.begin(); + while (!found && it != localIPs.end()) + { + if (addr2->GetIP() == *it) + found = true; + else + ++it; + } + + if (!found) + v = false; + else + { + if (addr2->GetPort() == portbase) // check for RTP port + v = true; + else if (addr2->GetPort() == (portbase+1)) // check for RTCP port + v = true; + else + v = false; + } + } + else + v = false; + + MAINMUTEX_UNLOCK + return v; +} + +int RTPUDPv4Transmitter::Poll() +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + int status; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + status = PollSocket(true); // poll RTP socket + if (status >= 0) + status = PollSocket(false); // poll RTCP socket + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv4Transmitter::WaitForIncomingData(const RTPTime &delay,bool *dataavailable) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + fd_set fdset; + struct timeval tv; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (waitingfordata) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_ALREADYWAITING; + } + + FD_ZERO(&fdset); + FD_SET(rtpsock,&fdset); + FD_SET(rtcpsock,&fdset); + FD_SET(abortdesc[0],&fdset); + tv.tv_sec = delay.GetSeconds(); + tv.tv_usec = delay.GetMicroSeconds(); + + waitingfordata = true; + + WAITMUTEX_LOCK + MAINMUTEX_UNLOCK + + if (select(FD_SETSIZE,&fdset,0,0,&tv) < 0) + { + MAINMUTEX_LOCK + waitingfordata = false; + MAINMUTEX_UNLOCK + WAITMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_ERRORINSELECT; + } + + MAINMUTEX_LOCK + waitingfordata = false; + if (!created) // destroy called + { + MAINMUTEX_UNLOCK; + WAITMUTEX_UNLOCK + return 0; + } + + // if aborted, read from abort buffer + if (FD_ISSET(abortdesc[0],&fdset)) + { +#if (defined(WIN32) || defined(_WIN32_WCE)) + char buf[1]; + + recv(abortdesc[0],buf,1,0); +#else + unsigned char buf[1]; + + read(abortdesc[0],buf,1); +#endif // WIN32 + } + + if (dataavailable != 0) + { + if (FD_ISSET(rtpsock,&fdset) || FD_ISSET(rtcpsock,&fdset)) + *dataavailable = true; + else + *dataavailable = false; + } + + MAINMUTEX_UNLOCK + WAITMUTEX_UNLOCK + return 0; +} + +int RTPUDPv4Transmitter::AbortWait() +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (!waitingfordata) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTWAITING; + } + + AbortWaitInternal(); + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv4Transmitter::SendRTPData(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (len > maxpacksize) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_SPECIFIEDSIZETOOBIG; + } + + destinations.GotoFirstElement(); + while (destinations.HasCurrentElement()) + { + sendto(rtpsock,(const char *)data,len,0,(const struct sockaddr *)destinations.GetCurrentElement().GetRTPSockAddr(),sizeof(struct sockaddr_in)); + destinations.GotoNextElement(); + } + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv4Transmitter::SendRTCPData(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (len > maxpacksize) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_SPECIFIEDSIZETOOBIG; + } + + destinations.GotoFirstElement(); + while (destinations.HasCurrentElement()) + { + sendto(rtcpsock,(const char *)data,len,0,(const struct sockaddr *)destinations.GetCurrentElement().GetRTCPSockAddr(),sizeof(struct sockaddr_in)); + destinations.GotoNextElement(); + } + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv4Transmitter::AddDestination(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + + RTPIPv4Address &address = (RTPIPv4Address &)addr; + RTPIPv4Destination dest(address.GetIP(),address.GetPort()); + int status = destinations.AddElement(dest); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv4Transmitter::DeleteDestination(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + + RTPIPv4Address &address = (RTPIPv4Address &)addr; + RTPIPv4Destination dest(address.GetIP(),address.GetPort()); + int status = destinations.DeleteElement(dest); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv4Transmitter::ClearDestinations() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created) + destinations.Clear(); + MAINMUTEX_UNLOCK +} + +bool RTPUDPv4Transmitter::SupportsMulticasting() +{ + if (!init) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (!created) + v = false; + else + v = supportsmulticasting; + + MAINMUTEX_UNLOCK + return v; +} + +#ifdef RTP_SUPPORT_IPV4MULTICAST + +int RTPUDPv4Transmitter::JoinMulticastGroup(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + uint32_t mcastIP = address.GetIP(); + + if (!RTPUDPV4TRANS_IS_MCASTADDR(mcastIP)) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTAMULTICASTADDRESS; + } + + status = multicastgroups.AddElement(mcastIP); + if (status >= 0) + { + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtpsock,IP_ADD_MEMBERSHIP,mcastIP,status); + if (status != 0) + { + multicastgroups.DeleteElement(mcastIP); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_COULDNTJOINMULTICASTGROUP; + } + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtcpsock,IP_ADD_MEMBERSHIP,mcastIP,status); + if (status != 0) + { + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + multicastgroups.DeleteElement(mcastIP); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_COULDNTJOINMULTICASTGROUP; + } + } + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv4Transmitter::LeaveMulticastGroup(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + uint32_t mcastIP = address.GetIP(); + + if (!RTPUDPV4TRANS_IS_MCASTADDR(mcastIP)) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTAMULTICASTADDRESS; + } + + status = multicastgroups.DeleteElement(mcastIP); + if (status >= 0) + { + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtcpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + status = 0; + } + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv4Transmitter::LeaveAllMulticastGroups() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created) + { + multicastgroups.GotoFirstElement(); + while (multicastgroups.HasCurrentElement()) + { + uint32_t mcastIP; + int status = 0; + + mcastIP = multicastgroups.GetCurrentElement(); + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + RTPUDPV4TRANS_MCASTMEMBERSHIP(rtcpsock,IP_DROP_MEMBERSHIP,mcastIP,status); + multicastgroups.GotoNextElement(); + } + multicastgroups.Clear(); + } + MAINMUTEX_UNLOCK +} + +#else // no multicast support + +int RTPUDPv4Transmitter::JoinMulticastGroup(const RTPAddress &addr) +{ + return ERR_RTP_UDPV4TRANS_NOMULTICASTSUPPORT; +} + +int RTPUDPv4Transmitter::LeaveMulticastGroup(const RTPAddress &addr) +{ + return ERR_RTP_UDPV4TRANS_NOMULTICASTSUPPORT; +} + +void RTPUDPv4Transmitter::LeaveAllMulticastGroups() +{ +} + +#endif // RTP_SUPPORT_IPV4MULTICAST + +int RTPUDPv4Transmitter::SetReceiveMode(RTPTransmitter::ReceiveMode m) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (m != receivemode) + { + receivemode = m; + acceptignoreinfo.Clear(); + } + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv4Transmitter::AddToIgnoreList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::IgnoreSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessAddAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv4Transmitter::DeleteFromIgnoreList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::IgnoreSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessDeleteAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv4Transmitter::ClearIgnoreList() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created && receivemode == RTPTransmitter::IgnoreSome) + ClearAcceptIgnoreInfo(); + MAINMUTEX_UNLOCK +} + +int RTPUDPv4Transmitter::AddToAcceptList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::AcceptSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessAddAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv4Transmitter::DeleteFromAcceptList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv4Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::AcceptSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv4Address &address = (const RTPIPv4Address &)addr; + status = ProcessDeleteAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv4Transmitter::ClearAcceptList() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created && receivemode == RTPTransmitter::AcceptSome) + ClearAcceptIgnoreInfo(); + MAINMUTEX_UNLOCK +} + +int RTPUDPv4Transmitter::SetMaximumPacketSize(size_t s) +{ + if (!init) + return ERR_RTP_UDPV4TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_NOTCREATED; + } + if (s > RTPUDPV4TRANS_MAXPACKSIZE) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV4TRANS_SPECIFIEDSIZETOOBIG; + } + maxpacksize = s; + MAINMUTEX_UNLOCK + return 0; +} + +bool RTPUDPv4Transmitter::NewDataAvailable() +{ + if (!init) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (!created) + v = false; + else + { + if (rawpacketlist.empty()) + v = false; + else + v = true; + } + + MAINMUTEX_UNLOCK + return v; +} + +RTPRawPacket *RTPUDPv4Transmitter::GetNextPacket() +{ + if (!init) + return 0; + + MAINMUTEX_LOCK + + RTPRawPacket *p; + + if (!created) + { + MAINMUTEX_UNLOCK + return 0; + } + if (rawpacketlist.empty()) + { + MAINMUTEX_UNLOCK + return 0; + } + + p = *(rawpacketlist.begin()); + rawpacketlist.pop_front(); + + MAINMUTEX_UNLOCK + return p; +} + +// Here the private functions start... + +#ifdef RTP_SUPPORT_IPV4MULTICAST +bool RTPUDPv4Transmitter::SetMulticastTTL(uint8_t ttl) +{ + int ttl2,status; + + ttl2 = (int)ttl; + status = setsockopt(rtpsock,IPPROTO_IP,IP_MULTICAST_TTL,(const char *)&ttl2,sizeof(int)); + if (status != 0) + return false; + status = setsockopt(rtcpsock,IPPROTO_IP,IP_MULTICAST_TTL,(const char *)&ttl2,sizeof(int)); + if (status != 0) + return false; + return true; +} +#endif // RTP_SUPPORT_IPV4MULTICAST + +void RTPUDPv4Transmitter::FlushPackets() +{ + std::list<RTPRawPacket*>::const_iterator it; + + for (it = rawpacketlist.begin() ; it != rawpacketlist.end() ; ++it) + RTPDelete(*it,GetMemoryManager()); + rawpacketlist.clear(); +} + +int RTPUDPv4Transmitter::PollSocket(bool rtp) +{ + RTPSOCKLENTYPE fromlen; + int recvlen; + char packetbuffer[RTPUDPV4TRANS_MAXPACKSIZE]; +#if (defined(WIN32) || defined(_WIN32_WCE)) + SOCKET sock; + unsigned long len; +#else + size_t len; + int sock; +#endif // WIN32 + struct sockaddr_in srcaddr; + + if (rtp) + sock = rtpsock; + else + sock = rtcpsock; + + len = 0; + RTPIOCTL(sock,FIONREAD,&len); + if (len <= 0) + return 0; + + while (len > 0) + { + RTPTime curtime = RTPTime::CurrentTime(); + fromlen = sizeof(struct sockaddr_in); + recvlen = recvfrom(sock,packetbuffer,RTPUDPV4TRANS_MAXPACKSIZE,0,(struct sockaddr *)&srcaddr,&fromlen); + if (recvlen > 0) + { + bool acceptdata; + + // got data, process it + if (receivemode == RTPTransmitter::AcceptAll) + acceptdata = true; + else + acceptdata = ShouldAcceptData(ntohl(srcaddr.sin_addr.s_addr),ntohs(srcaddr.sin_port)); + + if (acceptdata) + { + RTPRawPacket *pack; + RTPIPv4Address *addr; + uint8_t *datacopy; + + addr = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPADDRESS) RTPIPv4Address(ntohl(srcaddr.sin_addr.s_addr),ntohs(srcaddr.sin_port)); + if (addr == 0) + return ERR_RTP_OUTOFMEM; + datacopy = RTPNew(GetMemoryManager(),(rtp)?RTPMEM_TYPE_BUFFER_RECEIVEDRTPPACKET:RTPMEM_TYPE_BUFFER_RECEIVEDRTCPPACKET) uint8_t[recvlen]; + if (datacopy == 0) + { + RTPDelete(addr,GetMemoryManager()); + return ERR_RTP_OUTOFMEM; + } + memcpy(datacopy,packetbuffer,recvlen); + + pack = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPRAWPACKET) RTPRawPacket(datacopy,recvlen,addr,curtime,rtp,GetMemoryManager()); + if (pack == 0) + { + RTPDelete(addr,GetMemoryManager()); + RTPDeleteByteArray(datacopy,GetMemoryManager()); + return ERR_RTP_OUTOFMEM; + } + rawpacketlist.push_back(pack); + } + } + len = 0; + RTPIOCTL(sock,FIONREAD,&len); + } + return 0; +} + +int RTPUDPv4Transmitter::ProcessAddAcceptIgnoreEntry(uint32_t ip,uint16_t port) +{ + acceptignoreinfo.GotoElement(ip); + if (acceptignoreinfo.HasCurrentElement()) // An entry for this IP address already exists + { + PortInfo *portinf = acceptignoreinfo.GetCurrentElement(); + + if (port == 0) // select all ports + { + portinf->all = true; + portinf->portlist.clear(); + } + else if (!portinf->all) + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = portinf->portlist.begin(); + end = portinf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == port) // already in list + return 0; + } + portinf->portlist.push_front(port); + } + } + else // got to create an entry for this IP address + { + PortInfo *portinf; + int status; + + portinf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_ACCEPTIGNOREPORTINFO) PortInfo(); + if (port == 0) // select all ports + portinf->all = true; + else + portinf->portlist.push_front(port); + + status = acceptignoreinfo.AddElement(ip,portinf); + if (status < 0) + { + RTPDelete(portinf,GetMemoryManager()); + return status; + } + } + + return 0; +} + +void RTPUDPv4Transmitter::ClearAcceptIgnoreInfo() +{ + acceptignoreinfo.GotoFirstElement(); + while (acceptignoreinfo.HasCurrentElement()) + { + PortInfo *inf; + + inf = acceptignoreinfo.GetCurrentElement(); + RTPDelete(inf,GetMemoryManager()); + acceptignoreinfo.GotoNextElement(); + } + acceptignoreinfo.Clear(); +} + +int RTPUDPv4Transmitter::ProcessDeleteAcceptIgnoreEntry(uint32_t ip,uint16_t port) +{ + acceptignoreinfo.GotoElement(ip); + if (!acceptignoreinfo.HasCurrentElement()) + return ERR_RTP_UDPV4TRANS_NOSUCHENTRY; + + PortInfo *inf; + + inf = acceptignoreinfo.GetCurrentElement(); + if (port == 0) // delete all entries + { + inf->all = false; + inf->portlist.clear(); + } + else // a specific port was selected + { + if (inf->all) // currently, all ports are selected. Add the one to remove to the list + { + // we have to check if the list doesn't contain the port already + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == port) // already in list: this means we already deleted the entry + return ERR_RTP_UDPV4TRANS_NOSUCHENTRY; + } + inf->portlist.push_front(port); + } + else // check if we can find the port in the list + { + std::list<uint16_t>::iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; ++it) + { + if (*it == port) // found it! + { + inf->portlist.erase(it); + return 0; + } + } + // didn't find it + return ERR_RTP_UDPV4TRANS_NOSUCHENTRY; + } + } + return 0; +} + +bool RTPUDPv4Transmitter::ShouldAcceptData(uint32_t srcip,uint16_t srcport) +{ + if (receivemode == RTPTransmitter::AcceptSome) + { + PortInfo *inf; + + acceptignoreinfo.GotoElement(srcip); + if (!acceptignoreinfo.HasCurrentElement()) + return false; + + inf = acceptignoreinfo.GetCurrentElement(); + if (!inf->all) // only accept the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return true; + } + return false; + } + else // accept all, except the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return false; + } + return true; + } + } + else // IgnoreSome + { + PortInfo *inf; + + acceptignoreinfo.GotoElement(srcip); + if (!acceptignoreinfo.HasCurrentElement()) + return true; + + inf = acceptignoreinfo.GetCurrentElement(); + if (!inf->all) // ignore the ports in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return false; + } + return true; + } + else // ignore all, except the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return true; + } + return false; + } + } + return true; +} + +#if (defined(WIN32) || defined(_WIN32_WCE)) + +int RTPUDPv4Transmitter::CreateAbortDescriptors() +{ + SOCKET listensock; + int size; + struct sockaddr_in addr; + + listensock = socket(PF_INET,SOCK_STREAM,0); + if (listensock == RTPSOCKERR) + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + if (bind(listensock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(listensock); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + size = sizeof(struct sockaddr_in); + if (getsockname(listensock,(struct sockaddr*)&addr,&size) != 0) + { + RTPCLOSE(listensock); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + unsigned short connectport = ntohs(addr.sin_port); + + abortdesc[0] = socket(PF_INET,SOCK_STREAM,0); + if (abortdesc[0] == RTPSOCKERR) + { + RTPCLOSE(listensock); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + if (bind(abortdesc[0],(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + if (listen(listensock,1) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + addr.sin_family = AF_INET; + addr.sin_addr.s_addr = inet_addr("127.0.0.1"); + addr.sin_port = htons(connectport); + + if (connect(abortdesc[0],(struct sockaddr *)&addr,sizeof(struct sockaddr_in)) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in)); + size = sizeof(struct sockaddr_in); + abortdesc[1] = accept(listensock,(struct sockaddr *)&addr,&size); + if (abortdesc[1] == RTPSOCKERR) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV4TRANS_CANTCREATEABORTDESCRIPTORS; + } + + // okay, got the connection, close the listening socket + + RTPCLOSE(listensock); + return 0; +} + +void RTPUDPv4Transmitter::DestroyAbortDescriptors() +{ + RTPCLOSE(abortdesc[0]); + RTPCLOSE(abortdesc[1]); +} + +#else // in a non winsock environment we can use pipes + +int RTPUDPv4Transmitter::CreateAbortDescriptors() +{ + if (pipe(abortdesc) < 0) + return ERR_RTP_UDPV4TRANS_CANTCREATEPIPE; + return 0; +} + +void RTPUDPv4Transmitter::DestroyAbortDescriptors() +{ + close(abortdesc[0]); + close(abortdesc[1]); +} + +#endif // WIN32 + +int RTPUDPv4Transmitter::CreateLocalIPList() +{ + // first try to obtain the list from the network interface info + + if (!GetLocalIPList_Interfaces()) + { + // If this fails, we'll have to depend on DNS info + GetLocalIPList_DNS(); + } + AddLoopbackAddress(); + return 0; +} + +#if (defined(WIN32) || defined(_WIN32_WCE)) + +bool RTPUDPv4Transmitter::GetLocalIPList_Interfaces() +{ + unsigned char buffer[RTPUDPV4TRANS_IFREQBUFSIZE]; + DWORD outputsize; + DWORD numaddresses,i; + SOCKET_ADDRESS_LIST *addrlist; + + if (WSAIoctl(rtpsock,SIO_ADDRESS_LIST_QUERY,NULL,0,&buffer,RTPUDPV4TRANS_IFREQBUFSIZE,&outputsize,NULL,NULL)) + return false; + + addrlist = (SOCKET_ADDRESS_LIST *)buffer; + numaddresses = addrlist->iAddressCount; + for (i = 0 ; i < numaddresses ; i++) + { + SOCKET_ADDRESS *sockaddr = &(addrlist->Address[i]); + if (sockaddr->iSockaddrLength == sizeof(struct sockaddr_in)) // IPv4 address + { + struct sockaddr_in *addr = (struct sockaddr_in *)sockaddr->lpSockaddr; + + localIPs.push_back(ntohl(addr->sin_addr.s_addr)); + } + } + + if (localIPs.empty()) + return false; + + return true; +} + +#else // use either getifaddrs or ioctl + +#ifdef RTP_SUPPORT_IFADDRS + +bool RTPUDPv4Transmitter::GetLocalIPList_Interfaces() +{ + struct ifaddrs *addrs,*tmp; + + getifaddrs(&addrs); + tmp = addrs; + + while (tmp != 0) + { + if (tmp->ifa_addr != 0 && tmp->ifa_addr->sa_family == AF_INET) + { + struct sockaddr_in *inaddr = (struct sockaddr_in *)tmp->ifa_addr; + localIPs.push_back(ntohl(inaddr->sin_addr.s_addr)); + } + tmp = tmp->ifa_next; + } + + freeifaddrs(addrs); + + if (localIPs.empty()) + return false; + return true; +} + +#else // user ioctl + +bool RTPUDPv4Transmitter::GetLocalIPList_Interfaces() +{ + int status; + char buffer[RTPUDPV4TRANS_IFREQBUFSIZE]; + struct ifconf ifc; + struct ifreq *ifr; + struct sockaddr *sa; + char *startptr,*endptr; + int remlen; + + ifc.ifc_len = RTPUDPV4TRANS_IFREQBUFSIZE; + ifc.ifc_buf = buffer; + status = ioctl(rtpsock,SIOCGIFCONF,&ifc); + if (status < 0) + return false; + + startptr = (char *)ifc.ifc_req; + endptr = startptr + ifc.ifc_len; + remlen = ifc.ifc_len; + while((startptr < endptr) && remlen >= (int)sizeof(struct ifreq)) + { + ifr = (struct ifreq *)startptr; + sa = &(ifr->ifr_addr); +#ifdef RTP_HAVE_SOCKADDR_LEN + if (sa->sa_len <= sizeof(struct sockaddr)) + { + if (sa->sa_len == sizeof(struct sockaddr_in) && sa->sa_family == PF_INET) + { + uint32_t ip; + struct sockaddr_in *addr = (struct sockaddr_in *)sa; + + ip = ntohl(addr->sin_addr.s_addr); + localIPs.push_back(ip); + } + remlen -= sizeof(struct ifreq); + startptr += sizeof(struct ifreq); + } + else + { + int l = sa->sa_len-sizeof(struct sockaddr)+sizeof(struct ifreq); + + remlen -= l; + startptr += l; + } +#else // don't have sa_len in struct sockaddr + if (sa->sa_family == PF_INET) + { + uint32_t ip; + struct sockaddr_in *addr = (struct sockaddr_in *)sa; + + ip = ntohl(addr->sin_addr.s_addr); + localIPs.push_back(ip); + } + remlen -= sizeof(struct ifreq); + startptr += sizeof(struct ifreq); + +#endif // RTP_HAVE_SOCKADDR_LEN + } + + if (localIPs.empty()) + return false; + return true; +} + +#endif // RTP_SUPPORT_IFADDRS + +#endif // WIN32 + +void RTPUDPv4Transmitter::GetLocalIPList_DNS() +{ + struct hostent *he; + char name[1024]; + uint32_t ip; + bool done; + int i,j; + + gethostname(name,1023); + name[1023] = 0; + he = gethostbyname(name); + if (he == 0) + return; + + ip = 0; + i = 0; + done = false; + while (!done) + { + if (he->h_addr_list[i] == NULL) + done = true; + else + { + ip = 0; + for (j = 0 ; j < 4 ; j++) + ip |= ((uint32_t)((unsigned char)he->h_addr_list[i][j])<<((3-j)*8)); + localIPs.push_back(ip); + i++; + } + } +} + +void RTPUDPv4Transmitter::AbortWaitInternal() +{ +#if (defined(WIN32) || defined(_WIN32_WCE)) + send(abortdesc[1],"*",1,0); +#else + write(abortdesc[1],"*",1); +#endif // WIN32 +} + +void RTPUDPv4Transmitter::AddLoopbackAddress() +{ + uint32_t loopbackaddr = (((uint32_t)127)<<24)|((uint32_t)1); + std::list<uint32_t>::const_iterator it; + bool found = false; + + for (it = localIPs.begin() ; !found && it != localIPs.end() ; it++) + { + if (*it == loopbackaddr) + found = true; + } + + if (!found) + localIPs.push_back(loopbackaddr); +} + +#ifdef RTPDEBUG +void RTPUDPv4Transmitter::Dump() +{ + if (!init) + std::cout << "Not initialized" << std::endl; + else + { + MAINMUTEX_LOCK + + if (!created) + std::cout << "Not created" << std::endl; + else + { + char str[16]; + uint32_t ip; + std::list<uint32_t>::const_iterator it; + + std::cout << "Portbase: " << portbase << std::endl; + std::cout << "RTP socket descriptor: " << rtpsock << std::endl; + std::cout << "RTCP socket descriptor: " << rtcpsock << std::endl; + ip = bindIP; + RTP_SNPRINTF(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + std::cout << "Bind IP address: " << str << std::endl; + ip = mcastifaceIP; + RTP_SNPRINTF(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + std::cout << "Multicast interface IP address: " << str << std::endl; + std::cout << "Local IP addresses:" << std::endl; + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + ip = (*it); + RTP_SNPRINTF(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + std::cout << " " << str << std::endl; + } + std::cout << "Multicast TTL: " << (int)multicastTTL << std::endl; + std::cout << "Receive mode: "; + switch (receivemode) + { + case RTPTransmitter::AcceptAll: + std::cout << "Accept all"; + break; + case RTPTransmitter::AcceptSome: + std::cout << "Accept some"; + break; + case RTPTransmitter::IgnoreSome: + std::cout << "Ignore some"; + } + std::cout << std::endl; + if (receivemode != RTPTransmitter::AcceptAll) + { + acceptignoreinfo.GotoFirstElement(); + while(acceptignoreinfo.HasCurrentElement()) + { + ip = acceptignoreinfo.GetCurrentKey(); + RTP_SNPRINTF(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + PortInfo *pinfo = acceptignoreinfo.GetCurrentElement(); + std::cout << " " << str << ": "; + if (pinfo->all) + { + std::cout << "All ports"; + if (!pinfo->portlist.empty()) + std::cout << ", except "; + } + + std::list<uint16_t>::const_iterator it; + + for (it = pinfo->portlist.begin() ; it != pinfo->portlist.end() ; ) + { + std::cout << (*it); + it++; + if (it != pinfo->portlist.end()) + std::cout << ", "; + } + std::cout << std::endl; + } + } + + std::cout << "Local host name: "; + if (localhostname == 0) + std::cout << "Not set"; + else + std::cout << localhostname; + std::cout << std::endl; + + std::cout << "List of destinations: "; + destinations.GotoFirstElement(); + if (destinations.HasCurrentElement()) + { + std::cout << std::endl; + do + { + std::cout << " " << destinations.GetCurrentElement().GetDestinationString() << std::endl; + destinations.GotoNextElement(); + } while (destinations.HasCurrentElement()); + } + else + std::cout << "Empty" << std::endl; + + std::cout << "Supports multicasting: " << ((supportsmulticasting)?"Yes":"No") << std::endl; +#ifdef RTP_SUPPORT_IPV4MULTICAST + std::cout << "List of multicast groups: "; + multicastgroups.GotoFirstElement(); + if (multicastgroups.HasCurrentElement()) + { + std::cout << std::endl; + do + { + ip = multicastgroups.GetCurrentElement(); + RTP_SNPRINTF(str,16,"%d.%d.%d.%d",(int)((ip>>24)&0xFF),(int)((ip>>16)&0xFF),(int)((ip>>8)&0xFF),(int)(ip&0xFF)); + std::cout << " " << str << std::endl; + multicastgroups.GotoNextElement(); + } while (multicastgroups.HasCurrentElement()); + } + else + std::cout << "Empty" << std::endl; +#endif // RTP_SUPPORT_IPV4MULTICAST + + std::cout << "Number of raw packets in queue: " << rawpacketlist.size() << std::endl; + std::cout << "Maximum allowed packet size: " << maxpacksize << std::endl; + } + + MAINMUTEX_UNLOCK + } +} +#endif // RTPDEBUG + diff --git a/src/rtpudpv4transmitter.h b/src/rtpudpv4transmitter.h new file mode 100644 index 0000000..d96d6ea --- /dev/null +++ b/src/rtpudpv4transmitter.h @@ -0,0 +1,302 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpudpv4transmitter.h + */ + +#ifndef RTPUDPV4TRANSMITTER_H + +#define RTPUDPV4TRANSMITTER_H + +#include "rtpconfig.h" +#include "rtptransmitter.h" +#include "rtpipv4destination.h" +#include "rtphashtable.h" +#include "rtpkeyhashtable.h" +#include <list> + +#ifdef RTP_SUPPORT_THREAD + #include <jmutex.h> +#endif // RTP_SUPPORT_THREAD + +#define RTPUDPV4TRANS_HASHSIZE 8317 +#define RTPUDPV4TRANS_DEFAULTPORTBASE 5000 + +#define RTPUDPV4TRANS_RTPRECEIVEBUFFER 32768 +#define RTPUDPV4TRANS_RTCPRECEIVEBUFFER 32768 +#define RTPUDPV4TRANS_RTPTRANSMITBUFFER 32768 +#define RTPUDPV4TRANS_RTCPTRANSMITBUFFER 32768 + +/** Parameters for the UDP over IPv4 transmitter. */ +class RTPUDPv4TransmissionParams : public RTPTransmissionParams +{ +public: + RTPUDPv4TransmissionParams():RTPTransmissionParams(RTPTransmitter::IPv4UDPProto) { portbase = RTPUDPV4TRANS_DEFAULTPORTBASE; bindIP = 0; multicastTTL = 1; mcastifaceIP = 0; rtpsendbuf = RTPUDPV4TRANS_RTPTRANSMITBUFFER; rtprecvbuf= RTPUDPV4TRANS_RTPRECEIVEBUFFER; rtcpsendbuf = RTPUDPV4TRANS_RTCPTRANSMITBUFFER; rtcprecvbuf = RTPUDPV4TRANS_RTCPRECEIVEBUFFER; } + + /** Sets the IP address which is used to bind the sockets to \c ip. */ + void SetBindIP(uint32_t ip) { bindIP = ip; } + + /** Sets the multicast interface IP address. */ + void SetMulticastInterfaceIP(uint32_t ip) { mcastifaceIP = ip; } + + /** Sets the RTP portbase to \c pbase. This has to be an even number. */ + void SetPortbase(uint16_t pbase) { portbase = pbase; } + + /** Sets the multicast TTL to be used to \c mcastTTL. */ + void SetMulticastTTL(uint8_t mcastTTL) { multicastTTL = mcastTTL; } + + /** Passes a list of IP addresses which will be used as the local IP addresses. */ + void SetLocalIPList(std::list<uint32_t> &iplist) { localIPs = iplist; } + + /** Clears the list of local IP addresses. + * Clears the list of local IP addresses. An empty list will make the transmission + * component itself determine the local IP addresses. + */ + void ClearLocalIPList() { localIPs.clear(); } + + /** Returns the IP address which will be used to bind the sockets. */ + uint32_t GetBindIP() const { return bindIP; } + + /** Returns the multicast interface IP address. */ + uint32_t GetMulticastInterfaceIP() const { return mcastifaceIP; } + + /** Returns the RTP portbase which will be used (default is 5000). */ + uint16_t GetPortbase() const { return portbase; } + + /** Returns the multicast TTL which will be used (default is 1). */ + uint8_t GetMulticastTTL() const { return multicastTTL; } + + /** Returns the list of local IP addresses. */ + const std::list<uint32_t> &GetLocalIPList() const { return localIPs; } + + /** Sets the RTP socket's send buffer size. */ + void SetRTPSendBuffer(int s) { rtpsendbuf = s; } + + /** Sets the RTP socket's receive buffer size. */ + void SetRTPReceiveBuffer(int s) { rtprecvbuf = s; } + + /** Sets the RTCP socket's send buffer size. */ + void SetRTCPSendBuffer(int s) { rtcpsendbuf = s; } + + /** Sets the RTCP socket's receive buffer size. */ + void SetRTCPReceiveBuffer(int s) { rtcprecvbuf = s; } + + /** Returns the RTP socket's send buffer size. */ + int GetRTPSendBuffer() const { return rtpsendbuf; } + + /** Returns the RTP socket's receive buffer size. */ + int GetRTPReceiveBuffer() const { return rtprecvbuf; } + + /** Returns the RTCP socket's send buffer size. */ + int GetRTCPSendBuffer() const { return rtcpsendbuf; } + + /** Returns the RTCP socket's receive buffer size. */ + int GetRTCPReceiveBuffer() const { return rtcprecvbuf; } +private: + uint16_t portbase; + uint32_t bindIP, mcastifaceIP; + std::list<uint32_t> localIPs; + uint8_t multicastTTL; + int rtpsendbuf, rtprecvbuf; + int rtcpsendbuf, rtcprecvbuf; +}; + +/** Additional information about the UDP over IPv4 transmitter. */ +class RTPUDPv4TransmissionInfo : public RTPTransmissionInfo +{ +public: +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + RTPUDPv4TransmissionInfo(std::list<uint32_t> iplist,int rtpsock,int rtcpsock) : RTPTransmissionInfo(RTPTransmitter::IPv4UDPProto) +#else + RTPUDPv4TransmissionInfo(std::list<uint32_t> iplist,SOCKET rtpsock,SOCKET rtcpsock) : RTPTransmissionInfo(RTPTransmitter::IPv4UDPProto) +#endif // WIN32 + { localIPlist = iplist; rtpsocket = rtpsock; rtcpsocket = rtcpsock; } + + ~RTPUDPv4TransmissionInfo() { } + + /** Returns the list of IPv4 addresses the transmitter considers to be the local IP addresses. */ + std::list<uint32_t> GetLocalIPList() const { return localIPlist; } +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + /** Returns the socket descriptor used for receiving and transmitting RTP packets. */ + int GetRTPSocket() const { return rtpsocket; } + + /** Returns the socket descriptor used for receiving and transmitting RTCP packets. */ + int GetRTCPSocket() const { return rtcpsocket; } +#else + SOCKET GetRTPSocket() const { return rtpsocket; } + SOCKET GetRTCPSocket() const { return rtcpsocket; } +#endif // WIN32 +private: + std::list<uint32_t> localIPlist; +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + int rtpsocket,rtcpsocket; +#else + SOCKET rtpsocket,rtcpsocket; +#endif // WIN32 +}; + +class RTPUDPv4Trans_GetHashIndex_IPv4Dest +{ +public: + static int GetIndex(const RTPIPv4Destination &d) { return d.GetIP()%RTPUDPV4TRANS_HASHSIZE; } +}; + +class RTPUDPv4Trans_GetHashIndex_uint32_t +{ +public: + static int GetIndex(const uint32_t &k) { return k%RTPUDPV4TRANS_HASHSIZE; } +}; + +#define RTPUDPV4TRANS_HEADERSIZE (20+8) + +/** An UDP over IPv4 transmission component. + * This class inherits the RTPTransmitter interface and implements a transmission component + * which uses UDP over IPv4 to send and receive RTP and RTCP data. The component's parameters + * are described by the class RTPUDPv4TransmissionParams. The functions which have an RTPAddress + * argument require an argument of RTPIPv4Address. The GetTransmissionInfo member function + * returns an instance of type RTPUDPv4TransmissionInfo. + */ +class RTPUDPv4Transmitter : public RTPTransmitter +{ +public: + RTPUDPv4Transmitter(RTPMemoryManager *mgr); + ~RTPUDPv4Transmitter(); + + int Init(bool treadsafe); + int Create(size_t maxpacksize,const RTPTransmissionParams *transparams); + void Destroy(); + RTPTransmissionInfo *GetTransmissionInfo(); + + int GetLocalHostName(uint8_t *buffer,size_t *bufferlength); + bool ComesFromThisTransmitter(const RTPAddress *addr); + size_t GetHeaderOverhead() { return RTPUDPV4TRANS_HEADERSIZE; } + + int Poll(); + int WaitForIncomingData(const RTPTime &delay,bool *dataavailable = 0); + int AbortWait(); + + int SendRTPData(const void *data,size_t len); + int SendRTCPData(const void *data,size_t len); + + int AddDestination(const RTPAddress &addr); + int DeleteDestination(const RTPAddress &addr); + void ClearDestinations(); + + bool SupportsMulticasting(); + int JoinMulticastGroup(const RTPAddress &addr); + int LeaveMulticastGroup(const RTPAddress &addr); + void LeaveAllMulticastGroups(); + + int SetReceiveMode(RTPTransmitter::ReceiveMode m); + int AddToIgnoreList(const RTPAddress &addr); + int DeleteFromIgnoreList(const RTPAddress &addr); + void ClearIgnoreList(); + int AddToAcceptList(const RTPAddress &addr); + int DeleteFromAcceptList(const RTPAddress &addr); + void ClearAcceptList(); + int SetMaximumPacketSize(size_t s); + + bool NewDataAvailable(); + RTPRawPacket *GetNextPacket(); +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + int CreateLocalIPList(); + bool GetLocalIPList_Interfaces(); + void GetLocalIPList_DNS(); + void AddLoopbackAddress(); + void FlushPackets(); + int PollSocket(bool rtp); + int ProcessAddAcceptIgnoreEntry(uint32_t ip,uint16_t port); + int ProcessDeleteAcceptIgnoreEntry(uint32_t ip,uint16_t port); +#ifdef RTP_SUPPORT_IPV4MULTICAST + bool SetMulticastTTL(uint8_t ttl); +#endif // RTP_SUPPORT_IPV4MULTICAST + bool ShouldAcceptData(uint32_t srcip,uint16_t srcport); + void ClearAcceptIgnoreInfo(); + + bool init; + bool created; + bool waitingfordata; +#if (defined(WIN32) || defined(_WIN32_WCE)) + SOCKET rtpsock,rtcpsock; +#else // not using winsock + int rtpsock,rtcpsock; +#endif // WIN32 + uint32_t bindIP, mcastifaceIP; + std::list<uint32_t> localIPs; + uint16_t portbase; + uint8_t multicastTTL; + RTPTransmitter::ReceiveMode receivemode; + + uint8_t *localhostname; + size_t localhostnamelength; + + RTPHashTable<const RTPIPv4Destination,RTPUDPv4Trans_GetHashIndex_IPv4Dest,RTPUDPV4TRANS_HASHSIZE> destinations; +#ifdef RTP_SUPPORT_IPV4MULTICAST + RTPHashTable<const uint32_t,RTPUDPv4Trans_GetHashIndex_uint32_t,RTPUDPV4TRANS_HASHSIZE> multicastgroups; +#endif // RTP_SUPPORT_IPV4MULTICAST + std::list<RTPRawPacket*> rawpacketlist; + + bool supportsmulticasting; + size_t maxpacksize; + + class PortInfo + { + public: + PortInfo() { all = false; } + + bool all; + std::list<uint16_t> portlist; + }; + + RTPKeyHashTable<const uint32_t,PortInfo*,RTPUDPv4Trans_GetHashIndex_uint32_t,RTPUDPV4TRANS_HASHSIZE> acceptignoreinfo; + + // notification descriptors for AbortWait (0 is for reading, 1 for writing) +#if (defined(WIN32) || defined(_WIN32_WCE)) + SOCKET abortdesc[2]; +#else + int abortdesc[2]; +#endif // WIN32 + int CreateAbortDescriptors(); + void DestroyAbortDescriptors(); + void AbortWaitInternal(); +#ifdef RTP_SUPPORT_THREAD + JMutex mainmutex,waitmutex; + int threadsafe; +#endif // RTP_SUPPORT_THREAD +}; + +#endif // RTPUDPV4TRANSMITTER_H + diff --git a/src/rtpudpv6transmitter.cpp b/src/rtpudpv6transmitter.cpp new file mode 100644 index 0000000..6bf04d4 --- /dev/null +++ b/src/rtpudpv6transmitter.cpp @@ -0,0 +1,1889 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +#include "rtpudpv6transmitter.h" + +#ifdef RTP_SUPPORT_IPV6 + +#include "rtprawpacket.h" +#include "rtpipv6address.h" +#include "rtptimeutilities.h" +#include "rtpdefines.h" +#include <stdio.h> +#if (defined(WIN32) || defined(_WIN32_WCE)) + #define RTPSOCKERR INVALID_SOCKET + #define RTPCLOSE(x) closesocket(x) + #define RTPSOCKLENTYPE int + #define RTPIOCTL ioctlsocket +#else // not Win32 + #include <sys/socket.h> + #include <netinet/in.h> + #include <arpa/inet.h> + #include <sys/ioctl.h> + #include <net/if.h> + #include <string.h> + #include <netdb.h> + #include <unistd.h> + + #ifdef RTP_HAVE_SYS_FILIO + #include <sys/filio.h> + #endif // RTP_HAVE_SYS_FILIO + #ifdef RTP_HAVE_SYS_SOCKIO + #include <sys/sockio.h> + #endif // RTP_HAVE_SYS_SOCKIO + #ifdef RTP_SUPPORT_IFADDRS + #include <ifaddrs.h> + #endif // RTP_SUPPORT_IFADDRS + + + #define RTPSOCKERR -1 + #define RTPCLOSE(x) close(x) + + #ifdef RTP_SOCKLENTYPE_UINT + #define RTPSOCKLENTYPE unsigned int + #else + #define RTPSOCKLENTYPE int + #endif // RTP_SOCKLENTYPE_UINT + + #define RTPIOCTL ioctl +#endif // WIN32 + +#include "rtpdebug.h" + +#define RTPUDPV6TRANS_MAXPACKSIZE 65535 +#define RTPUDPV6TRANS_IFREQBUFSIZE 8192 + +#define RTPUDPV6TRANS_IS_MCASTADDR(x) (x.s6_addr[0] == 0xFF) + +#define RTPUDPV6TRANS_MCASTMEMBERSHIP(socket,type,mcastip,status) {\ + struct ipv6_mreq mreq;\ + \ + mreq.ipv6mr_multiaddr = mcastip;\ + mreq.ipv6mr_interface = mcastifidx;\ + status = setsockopt(socket,IPPROTO_IPV6,type,(const char *)&mreq,sizeof(struct ipv6_mreq));\ + } +#ifdef RTP_SUPPORT_THREAD + #define MAINMUTEX_LOCK { if (threadsafe) mainmutex.Lock(); } + #define MAINMUTEX_UNLOCK { if (threadsafe) mainmutex.Unlock(); } + #define WAITMUTEX_LOCK { if (threadsafe) waitmutex.Lock(); } + #define WAITMUTEX_UNLOCK { if (threadsafe) waitmutex.Unlock(); } +#else + #define MAINMUTEX_LOCK + #define MAINMUTEX_UNLOCK + #define WAITMUTEX_LOCK + #define WAITMUTEX_UNLOCK +#endif // RTP_SUPPORT_THREAD + +inline bool operator==(const in6_addr &ip1,const in6_addr &ip2) +{ + if (memcmp(&ip1,&ip2,sizeof(in6_addr)) == 0) + return true; + return false; +} + +RTPUDPv6Transmitter::RTPUDPv6Transmitter(RTPMemoryManager *mgr) : RTPTransmitter(mgr), + destinations(GetMemoryManager(),RTPMEM_TYPE_CLASS_DESTINATIONLISTHASHELEMENT), + multicastgroups(GetMemoryManager(),RTPMEM_TYPE_CLASS_MULTICASTHASHELEMENT), + acceptignoreinfo(GetMemoryManager(),RTPMEM_TYPE_CLASS_ACCEPTIGNOREHASHELEMENT) +{ + created = false; + init = false; +#if (defined(WIN32) || defined(_WIN32_WCE)) + timeinit.Dummy(); +#endif // WIN32 || _WIN32_WCE +} + +RTPUDPv6Transmitter::~RTPUDPv6Transmitter() +{ + Destroy(); +} + +int RTPUDPv6Transmitter::Init(bool tsafe) +{ + if (init) + return ERR_RTP_UDPV6TRANS_ALREADYINIT; + +#ifdef RTP_SUPPORT_THREAD + threadsafe = tsafe; + if (threadsafe) + { + int status; + + status = mainmutex.Init(); + if (status < 0) + return ERR_RTP_UDPV6TRANS_CANTINITMUTEX; + status = waitmutex.Init(); + if (status < 0) + return ERR_RTP_UDPV6TRANS_CANTINITMUTEX; + } +#else + if (tsafe) + return ERR_RTP_NOTHREADSUPPORT; +#endif // RTP_SUPPORT_THREAD + + init = true; + return 0; +} + +int RTPUDPv6Transmitter::Create(size_t maximumpacketsize,const RTPTransmissionParams *transparams) +{ + const RTPUDPv6TransmissionParams *params,defaultparams; + struct sockaddr_in6 addr; + RTPSOCKLENTYPE size; + int status; + + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_ALREADYCREATED; + } + + // Obtain transmission parameters + + if (transparams == 0) + params = &defaultparams; + else + { + if (transparams->GetTransmissionProtocol() != RTPTransmitter::IPv6UDPProto) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_ILLEGALPARAMETERS; + } + params = (const RTPUDPv6TransmissionParams *)transparams; + } + + // Check if portbase is even + if (params->GetPortbase()%2 != 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_PORTBASENOTEVEN; + } + + // create sockets + + rtpsock = socket(PF_INET6,SOCK_DGRAM,0); + if (rtpsock == RTPSOCKERR) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTCREATESOCKET; + } + rtcpsock = socket(PF_INET6,SOCK_DGRAM,0); + if (rtcpsock == RTPSOCKERR) + { + RTPCLOSE(rtpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTCREATESOCKET; + } + + // set socket buffer sizes + + size = params->GetRTPReceiveBuffer(); + if (setsockopt(rtpsock,SOL_SOCKET,SO_RCVBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTSETRTPRECEIVEBUF; + } + size = params->GetRTPSendBuffer(); + if (setsockopt(rtpsock,SOL_SOCKET,SO_SNDBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTSETRTPTRANSMITBUF; + } + size = params->GetRTCPReceiveBuffer(); + if (setsockopt(rtcpsock,SOL_SOCKET,SO_RCVBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTSETRTCPRECEIVEBUF; + } + size = params->GetRTCPSendBuffer(); + if (setsockopt(rtcpsock,SOL_SOCKET,SO_SNDBUF,(const char *)&size,sizeof(int)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTSETRTCPTRANSMITBUF; + } + + // bind sockets + + bindIP = params->GetBindIP(); + mcastifidx = params->GetMulticastInterfaceIndex(); + + memset(&addr,0,sizeof(struct sockaddr_in6)); + addr.sin6_family = AF_INET6; + addr.sin6_port = htons(params->GetPortbase()); + addr.sin6_addr = bindIP; + if (bind(rtpsock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in6)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTBINDRTPSOCKET; + } + memset(&addr,0,sizeof(struct sockaddr_in6)); + addr.sin6_family = AF_INET6; + addr.sin6_port = htons(params->GetPortbase()+1); + addr.sin6_addr = bindIP; + if (bind(rtcpsock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in6)) != 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_CANTBINDRTCPSOCKET; + } + + // Try to obtain local IP addresses + + localIPs = params->GetLocalIPList(); + if (localIPs.empty()) // User did not provide list of local IP addresses, calculate them + { + int status; + + if ((status = CreateLocalIPList()) < 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return status; + } + +#ifdef RTPDEBUG + std::cout << "Found these local IP addresses:" << std::endl; + + std::list<in6_addr>::const_iterator it; + + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + RTPIPv6Address a(*it); + + std::cout << a.GetAddressString() << std::endl; + } +#endif // RTPDEBUG + } + +#ifdef RTP_SUPPORT_IPV6MULTICAST + if (SetMulticastTTL(params->GetMulticastTTL())) + supportsmulticasting = true; + else + supportsmulticasting = false; +#else // no multicast support enabled + supportsmulticasting = false; +#endif // RTP_SUPPORT_IPV6MULTICAST + + if ((status = CreateAbortDescriptors()) < 0) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + MAINMUTEX_UNLOCK + return status; + } + + if (maximumpacketsize > RTPUDPV6TRANS_MAXPACKSIZE) + { + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + DestroyAbortDescriptors(); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_SPECIFIEDSIZETOOBIG; + } + + maxpacksize = maximumpacketsize; + portbase = params->GetPortbase(); + multicastTTL = params->GetMulticastTTL(); + receivemode = RTPTransmitter::AcceptAll; + + localhostname = 0; + localhostnamelength = 0; + + waitingfordata = false; + created = true; + MAINMUTEX_UNLOCK + return 0; +} + +void RTPUDPv6Transmitter::Destroy() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK; + return; + } + + if (localhostname) + { + RTPDeleteByteArray(localhostname,GetMemoryManager()); + localhostname = 0; + localhostnamelength = 0; + } + + RTPCLOSE(rtpsock); + RTPCLOSE(rtcpsock); + destinations.Clear(); +#ifdef RTP_SUPPORT_IPV6MULTICAST + multicastgroups.Clear(); +#endif // RTP_SUPPORT_IPV6MULTICAST + FlushPackets(); + ClearAcceptIgnoreInfo(); + localIPs.clear(); + created = false; + + if (waitingfordata) + { + AbortWaitInternal(); + DestroyAbortDescriptors(); + MAINMUTEX_UNLOCK + WAITMUTEX_LOCK // to make sure that the WaitForIncomingData function ended + WAITMUTEX_UNLOCK + } + else + DestroyAbortDescriptors(); + + MAINMUTEX_UNLOCK +} + +RTPTransmissionInfo *RTPUDPv6Transmitter::GetTransmissionInfo() +{ + if (!init) + return 0; + + MAINMUTEX_LOCK + RTPTransmissionInfo *tinf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPTRANSMISSIONINFO) RTPUDPv6TransmissionInfo(localIPs,rtpsock,rtcpsock); + MAINMUTEX_UNLOCK + return tinf; +} + +int RTPUDPv6Transmitter::GetLocalHostName(uint8_t *buffer,size_t *bufferlength) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + + if (localhostname == 0) + { + if (localIPs.empty()) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOLOCALIPS; + } + + std::list<in6_addr>::const_iterator it; + std::list<std::string> hostnames; + + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + bool founddouble = false; + bool foundentry = true; + + while (!founddouble && foundentry) + { + struct hostent *he; + in6_addr ip = (*it); + + he = gethostbyaddr((char *)&ip,sizeof(in6_addr),AF_INET6); + if (he != 0) + { + std::string hname = std::string(he->h_name); + std::list<std::string>::const_iterator it; + + for (it = hostnames.begin() ; !founddouble && it != hostnames.end() ; it++) + if ((*it) == hname) + founddouble = true; + + if (!founddouble) + hostnames.push_back(hname); + + int i = 0; + while (!founddouble && he->h_aliases[i] != 0) + { + std::string hname = std::string(he->h_aliases[i]); + + for (it = hostnames.begin() ; !founddouble && it != hostnames.end() ; it++) + if ((*it) == hname) + founddouble = true; + + if (!founddouble) + { + hostnames.push_back(hname); + i++; + } + } + } + else + foundentry = false; + } + } + + bool found = false; + + if (!hostnames.empty()) // try to select the most appropriate hostname + { + std::list<std::string>::const_iterator it; + + hostnames.sort(); + for (it = hostnames.begin() ; !found && it != hostnames.end() ; it++) + { + if ((*it).find('.') != std::string::npos) + { + found = true; + localhostnamelength = (*it).length(); + localhostname = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) uint8_t [localhostnamelength+1]; + if (localhostname == 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_OUTOFMEM; + } + memcpy(localhostname,(*it).c_str(),localhostnamelength); + localhostname[localhostnamelength] = 0; + } + } + } + + if (!found) // use an IP address + { + in6_addr ip; + int len; + char str[48]; + uint16_t ip16[8]; + int i,j; + + it = localIPs.begin(); + ip = (*it); + + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) + { + ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); + ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); + } + + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7]); + len = strlen(str); + + localhostnamelength = len; + localhostname = RTPNew(GetMemoryManager(),RTPMEM_TYPE_OTHER) uint8_t [localhostnamelength+1]; + if (localhostname == 0) + { + MAINMUTEX_UNLOCK + return ERR_RTP_OUTOFMEM; + } + memcpy(localhostname,str,localhostnamelength); + localhostname[localhostnamelength] = 0; + } + } + + if ((*bufferlength) < localhostnamelength) + { + *bufferlength = localhostnamelength; // tell the application the required size of the buffer + MAINMUTEX_UNLOCK + return ERR_RTP_TRANS_BUFFERLENGTHTOOSMALL; + } + + memcpy(buffer,localhostname,localhostnamelength); + *bufferlength = localhostnamelength; + + MAINMUTEX_UNLOCK + return 0; +} + +bool RTPUDPv6Transmitter::ComesFromThisTransmitter(const RTPAddress *addr) +{ + if (!init) + return false; + + if (addr == 0) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (created && addr->GetAddressType() == RTPAddress::IPv6Address) + { + const RTPIPv6Address *addr2 = (const RTPIPv6Address *)addr; + bool found = false; + std::list<in6_addr>::const_iterator it; + + it = localIPs.begin(); + while (!found && it != localIPs.end()) + { + in6_addr itip = *it; + in6_addr addrip = addr2->GetIP(); + if (memcmp(&addrip,&itip,sizeof(in6_addr)) == 0) + found = true; + else + ++it; + } + + if (!found) + v = false; + else + { + if (addr2->GetPort() == portbase) // check for RTP port + v = true; + else if (addr2->GetPort() == (portbase+1)) // check for RTCP port + v = true; + else + v = false; + } + } + else + v = false; + + MAINMUTEX_UNLOCK + return v; +} + +int RTPUDPv6Transmitter::Poll() +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + int status; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + status = PollSocket(true); // poll RTP socket + if (status >= 0) + status = PollSocket(false); // poll RTCP socket + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv6Transmitter::WaitForIncomingData(const RTPTime &delay,bool *dataavailable) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + fd_set fdset; + struct timeval tv; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (waitingfordata) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_ALREADYWAITING; + } + + FD_ZERO(&fdset); + FD_SET(rtpsock,&fdset); + FD_SET(rtcpsock,&fdset); + FD_SET(abortdesc[0],&fdset); + tv.tv_sec = delay.GetSeconds(); + tv.tv_usec = delay.GetMicroSeconds(); + + waitingfordata = true; + + WAITMUTEX_LOCK + MAINMUTEX_UNLOCK + + if (select(FD_SETSIZE,&fdset,0,0,&tv) < 0) + { + MAINMUTEX_LOCK + waitingfordata = false; + MAINMUTEX_UNLOCK + WAITMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_ERRORINSELECT; + } + + MAINMUTEX_LOCK + waitingfordata = false; + if (!created) // destroy called + { + MAINMUTEX_UNLOCK; + WAITMUTEX_UNLOCK + return 0; + } + + // if aborted, read from abort buffer + if (FD_ISSET(abortdesc[0],&fdset)) + { +#if (defined(WIN32) || defined(_WIN32_WCE)) + char buf[1]; + + recv(abortdesc[0],buf,1,0); +#else + unsigned char buf[1]; + + read(abortdesc[0],buf,1); +#endif // WIN32 + } + + if (dataavailable != 0) + { + if (FD_ISSET(rtpsock,&fdset) || FD_ISSET(rtcpsock,&fdset)) + *dataavailable = true; + else + *dataavailable = false; + } + + MAINMUTEX_UNLOCK + WAITMUTEX_UNLOCK + return 0; +} + +int RTPUDPv6Transmitter::AbortWait() +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (!waitingfordata) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTWAITING; + } + + AbortWaitInternal(); + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv6Transmitter::SendRTPData(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (len > maxpacksize) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_SPECIFIEDSIZETOOBIG; + } + + destinations.GotoFirstElement(); + while (destinations.HasCurrentElement()) + { + sendto(rtpsock,(const char *)data,len,0,(const struct sockaddr *)destinations.GetCurrentElement().GetRTPSockAddr(),sizeof(struct sockaddr_in6)); + destinations.GotoNextElement(); + } + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv6Transmitter::SendRTCPData(const void *data,size_t len) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (len > maxpacksize) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_SPECIFIEDSIZETOOBIG; + } + + destinations.GotoFirstElement(); + while (destinations.HasCurrentElement()) + { + sendto(rtcpsock,(const char *)data,len,0,(const struct sockaddr *)destinations.GetCurrentElement().GetRTCPSockAddr(),sizeof(struct sockaddr_in6)); + destinations.GotoNextElement(); + } + + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv6Transmitter::AddDestination(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + + RTPIPv6Address &address = (RTPIPv6Address &)addr; + RTPIPv6Destination dest(address.GetIP(),address.GetPort()); + int status = destinations.AddElement(dest); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv6Transmitter::DeleteDestination(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + + RTPIPv6Address &address = (RTPIPv6Address &)addr; + RTPIPv6Destination dest(address.GetIP(),address.GetPort()); + int status = destinations.DeleteElement(dest); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv6Transmitter::ClearDestinations() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created) + destinations.Clear(); + MAINMUTEX_UNLOCK +} + +bool RTPUDPv6Transmitter::SupportsMulticasting() +{ + if (!init) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (!created) + v = false; + else + v = supportsmulticasting; + + MAINMUTEX_UNLOCK + return v; +} + +#ifdef RTP_SUPPORT_IPV6MULTICAST + +int RTPUDPv6Transmitter::JoinMulticastGroup(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + + const RTPIPv6Address &address = (const RTPIPv6Address &)addr; + in6_addr mcastIP = address.GetIP(); + + if (!RTPUDPV6TRANS_IS_MCASTADDR(mcastIP)) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTAMULTICASTADDRESS; + } + + status = multicastgroups.AddElement(mcastIP); + if (status >= 0) + { + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtpsock,IPV6_JOIN_GROUP,mcastIP,status); + if (status != 0) + { + multicastgroups.DeleteElement(mcastIP); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_COULDNTJOINMULTICASTGROUP; + } + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtcpsock,IPV6_JOIN_GROUP,mcastIP,status); + if (status != 0) + { + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtpsock,IPV6_LEAVE_GROUP,mcastIP,status); + multicastgroups.DeleteElement(mcastIP); + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_COULDNTJOINMULTICASTGROUP; + } + } + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv6Transmitter::LeaveMulticastGroup(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + + const RTPIPv6Address &address = (const RTPIPv6Address &)addr; + in6_addr mcastIP = address.GetIP(); + + if (!RTPUDPV6TRANS_IS_MCASTADDR(mcastIP)) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTAMULTICASTADDRESS; + } + + status = multicastgroups.DeleteElement(mcastIP); + if (status >= 0) + { + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtpsock,IPV6_LEAVE_GROUP,mcastIP,status); + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtcpsock,IPV6_LEAVE_GROUP,mcastIP,status); + status = 0; + } + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv6Transmitter::LeaveAllMulticastGroups() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created) + { + multicastgroups.GotoFirstElement(); + while (multicastgroups.HasCurrentElement()) + { + in6_addr mcastIP; + int status = 0; + + mcastIP = multicastgroups.GetCurrentElement(); + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtpsock,IPV6_LEAVE_GROUP,mcastIP,status); + RTPUDPV6TRANS_MCASTMEMBERSHIP(rtcpsock,IPV6_LEAVE_GROUP,mcastIP,status); + multicastgroups.GotoNextElement(); + } + multicastgroups.Clear(); + } + MAINMUTEX_UNLOCK +} + +#else // no multicast support + +int RTPUDPv6Transmitter::JoinMulticastGroup(const RTPAddress &addr) +{ + return ERR_RTP_UDPV6TRANS_NOMULTICASTSUPPORT; +} + +int RTPUDPv6Transmitter::LeaveMulticastGroup(const RTPAddress &addr) +{ + return ERR_RTP_UDPV6TRANS_NOMULTICASTSUPPORT; +} + +void RTPUDPv6Transmitter::LeaveAllMulticastGroups() +{ +} + +#endif // RTP_SUPPORT_IPV6MULTICAST + +int RTPUDPv6Transmitter::SetReceiveMode(RTPTransmitter::ReceiveMode m) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (m != receivemode) + { + receivemode = m; + acceptignoreinfo.Clear(); + } + MAINMUTEX_UNLOCK + return 0; +} + +int RTPUDPv6Transmitter::AddToIgnoreList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::IgnoreSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv6Address &address = (const RTPIPv6Address &)addr; + status = ProcessAddAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv6Transmitter::DeleteFromIgnoreList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::IgnoreSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv6Address &address = (const RTPIPv6Address &)addr; + status = ProcessDeleteAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv6Transmitter::ClearIgnoreList() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created && receivemode == RTPTransmitter::IgnoreSome) + ClearAcceptIgnoreInfo(); + MAINMUTEX_UNLOCK +} + +int RTPUDPv6Transmitter::AddToAcceptList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::AcceptSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv6Address &address = (const RTPIPv6Address &)addr; + status = ProcessAddAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +int RTPUDPv6Transmitter::DeleteFromAcceptList(const RTPAddress &addr) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + + int status; + + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (addr.GetAddressType() != RTPAddress::IPv6Address) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_INVALIDADDRESSTYPE; + } + if (receivemode != RTPTransmitter::AcceptSome) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_DIFFERENTRECEIVEMODE; + } + + const RTPIPv6Address &address = (const RTPIPv6Address &)addr; + status = ProcessDeleteAcceptIgnoreEntry(address.GetIP(),address.GetPort()); + + MAINMUTEX_UNLOCK + return status; +} + +void RTPUDPv6Transmitter::ClearAcceptList() +{ + if (!init) + return; + + MAINMUTEX_LOCK + if (created && receivemode == RTPTransmitter::AcceptSome) + ClearAcceptIgnoreInfo(); + MAINMUTEX_UNLOCK +} + +int RTPUDPv6Transmitter::SetMaximumPacketSize(size_t s) +{ + if (!init) + return ERR_RTP_UDPV6TRANS_NOTINIT; + + MAINMUTEX_LOCK + if (!created) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_NOTCREATED; + } + if (s > RTPUDPV6TRANS_MAXPACKSIZE) + { + MAINMUTEX_UNLOCK + return ERR_RTP_UDPV6TRANS_SPECIFIEDSIZETOOBIG; + } + maxpacksize = s; + MAINMUTEX_UNLOCK + return 0; +} + +bool RTPUDPv6Transmitter::NewDataAvailable() +{ + if (!init) + return false; + + MAINMUTEX_LOCK + + bool v; + + if (!created) + v = false; + else + { + if (rawpacketlist.empty()) + v = false; + else + v = true; + } + + MAINMUTEX_UNLOCK + return v; +} + +RTPRawPacket *RTPUDPv6Transmitter::GetNextPacket() +{ + if (!init) + return 0; + + MAINMUTEX_LOCK + + RTPRawPacket *p; + + if (!created) + { + MAINMUTEX_UNLOCK + return 0; + } + if (rawpacketlist.empty()) + { + MAINMUTEX_UNLOCK + return 0; + } + + p = *(rawpacketlist.begin()); + rawpacketlist.pop_front(); + + MAINMUTEX_UNLOCK + return p; +} + +// Here the private functions start... + + +#ifdef RTP_SUPPORT_IPV6MULTICAST +bool RTPUDPv6Transmitter::SetMulticastTTL(uint8_t ttl) +{ + int ttl2,status; + + ttl2 = (int)ttl; + status = setsockopt(rtpsock,IPPROTO_IPV6,IPV6_MULTICAST_HOPS,(const char *)&ttl2,sizeof(int)); + if (status != 0) + return false; + status = setsockopt(rtcpsock,IPPROTO_IPV6,IPV6_MULTICAST_HOPS,(const char *)&ttl2,sizeof(int)); + if (status != 0) + return false; + return true; +} +#endif // RTP_SUPPORT_IPV6MULTICAST + + +void RTPUDPv6Transmitter::FlushPackets() +{ + std::list<RTPRawPacket*>::const_iterator it; + + for (it = rawpacketlist.begin() ; it != rawpacketlist.end() ; ++it) + RTPDelete(*it,GetMemoryManager()); + rawpacketlist.clear(); +} + +int RTPUDPv6Transmitter::PollSocket(bool rtp) +{ + RTPSOCKLENTYPE fromlen; + int recvlen; + char packetbuffer[RTPUDPV6TRANS_MAXPACKSIZE]; +#if (defined(WIN32) || defined(_WIN32_WCE)) + SOCKET sock; + unsigned long len; +#else + size_t len; + int sock; +#endif // WIN32 + struct sockaddr_in6 srcaddr; + + if (rtp) + sock = rtpsock; + else + sock = rtcpsock; + + len = 0; + RTPIOCTL(sock,FIONREAD,&len); + if (len <= 0) + return 0; + + while (len > 0) + { + RTPTime curtime = RTPTime::CurrentTime(); + fromlen = sizeof(struct sockaddr_in6); + recvlen = recvfrom(sock,packetbuffer,RTPUDPV6TRANS_MAXPACKSIZE,0,(struct sockaddr *)&srcaddr,&fromlen); + if (recvlen > 0) + { + bool acceptdata; + + // got data, process it + if (receivemode == RTPTransmitter::AcceptAll) + acceptdata = true; + else + acceptdata = ShouldAcceptData(srcaddr.sin6_addr,ntohs(srcaddr.sin6_port)); + + if (acceptdata) + { + RTPRawPacket *pack; + RTPIPv6Address *addr; + uint8_t *datacopy; + + addr = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPADDRESS) RTPIPv6Address(srcaddr.sin6_addr,ntohs(srcaddr.sin6_port)); + if (addr == 0) + return ERR_RTP_OUTOFMEM; + datacopy = RTPNew(GetMemoryManager(),(rtp)?RTPMEM_TYPE_BUFFER_RECEIVEDRTPPACKET:RTPMEM_TYPE_BUFFER_RECEIVEDRTCPPACKET) uint8_t[recvlen]; + if (datacopy == 0) + { + RTPDelete(addr,GetMemoryManager()); + return ERR_RTP_OUTOFMEM; + } + memcpy(datacopy,packetbuffer,recvlen); + + pack = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_RTPRAWPACKET) RTPRawPacket(datacopy,recvlen,addr,curtime,rtp,GetMemoryManager()); + if (pack == 0) + { + RTPDelete(addr,GetMemoryManager()); + RTPDeleteByteArray(datacopy,GetMemoryManager()); + return ERR_RTP_OUTOFMEM; + } + rawpacketlist.push_back(pack); + } + } + len = 0; + RTPIOCTL(sock,FIONREAD,&len); + } + return 0; +} + +int RTPUDPv6Transmitter::ProcessAddAcceptIgnoreEntry(in6_addr ip,uint16_t port) +{ + acceptignoreinfo.GotoElement(ip); + if (acceptignoreinfo.HasCurrentElement()) // An entry for this IP address already exists + { + PortInfo *portinf = acceptignoreinfo.GetCurrentElement(); + + if (port == 0) // select all ports + { + portinf->all = true; + portinf->portlist.clear(); + } + else if (!portinf->all) + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = portinf->portlist.begin(); + end = portinf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == port) // already in list + return 0; + } + portinf->portlist.push_front(port); + } + } + else // got to create an entry for this IP address + { + PortInfo *portinf; + int status; + + portinf = RTPNew(GetMemoryManager(),RTPMEM_TYPE_CLASS_ACCEPTIGNOREPORTINFO) PortInfo(); + if (port == 0) // select all ports + portinf->all = true; + else + portinf->portlist.push_front(port); + + status = acceptignoreinfo.AddElement(ip,portinf); + if (status < 0) + { + RTPDelete(portinf,GetMemoryManager()); + return status; + } + } + return 0; +} + +void RTPUDPv6Transmitter::ClearAcceptIgnoreInfo() +{ + acceptignoreinfo.GotoFirstElement(); + while (acceptignoreinfo.HasCurrentElement()) + { + PortInfo *inf; + + inf = acceptignoreinfo.GetCurrentElement(); + RTPDelete(inf,GetMemoryManager()); + acceptignoreinfo.GotoNextElement(); + } + acceptignoreinfo.Clear(); +} + +int RTPUDPv6Transmitter::ProcessDeleteAcceptIgnoreEntry(in6_addr ip,uint16_t port) +{ + acceptignoreinfo.GotoElement(ip); + if (!acceptignoreinfo.HasCurrentElement()) + return ERR_RTP_UDPV6TRANS_NOSUCHENTRY; + + PortInfo *inf; + + inf = acceptignoreinfo.GetCurrentElement(); + if (port == 0) // delete all entries + { + inf->all = false; + inf->portlist.clear(); + } + else // a specific port was selected + { + if (inf->all) // currently, all ports are selected. Add the one to remove to the list + { + // we have to check if the list doesn't contain the port already + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == port) // already in list: this means we already deleted the entry + return ERR_RTP_UDPV6TRANS_NOSUCHENTRY; + } + inf->portlist.push_front(port); + } + else // check if we can find the port in the list + { + std::list<uint16_t>::iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; ++it) + { + if (*it == port) // found it! + { + inf->portlist.erase(it); + return 0; + } + } + // didn't find it + return ERR_RTP_UDPV6TRANS_NOSUCHENTRY; + } + } + return 0; +} + +bool RTPUDPv6Transmitter::ShouldAcceptData(in6_addr srcip,uint16_t srcport) +{ + if (receivemode == RTPTransmitter::AcceptSome) + { + PortInfo *inf; + + acceptignoreinfo.GotoElement(srcip); + if (!acceptignoreinfo.HasCurrentElement()) + return false; + + inf = acceptignoreinfo.GetCurrentElement(); + if (!inf->all) // only accept the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return true; + } + return false; + } + else // accept all, except the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return false; + } + return true; + } + } + else // IgnoreSome + { + PortInfo *inf; + + acceptignoreinfo.GotoElement(srcip); + if (!acceptignoreinfo.HasCurrentElement()) + return true; + + inf = acceptignoreinfo.GetCurrentElement(); + if (!inf->all) // ignore the ports in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return false; + } + return true; + } + else // ignore all, except the ones in the list + { + std::list<uint16_t>::const_iterator it,begin,end; + + begin = inf->portlist.begin(); + end = inf->portlist.end(); + for (it = begin ; it != end ; it++) + { + if (*it == srcport) + return true; + } + return false; + } + } + return true; +} + +#if (defined(WIN32) || defined(_WIN32_WCE)) + +int RTPUDPv6Transmitter::CreateAbortDescriptors() +{ + SOCKET listensock; + int size; + struct sockaddr_in6 addr; + + listensock = socket(PF_INET6,SOCK_STREAM,0); + if (listensock == RTPSOCKERR) + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + + memset(&addr,0,sizeof(struct sockaddr_in6)); + addr.sin6_family = AF_INET6; + if (bind(listensock,(struct sockaddr *)&addr,sizeof(struct sockaddr_in6)) != 0) + { + RTPCLOSE(listensock); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in6)); + size = sizeof(struct sockaddr_in6); + if (getsockname(listensock,(struct sockaddr*)&addr,&size) != 0) + { + RTPCLOSE(listensock); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + unsigned short connectport = ntohs(addr.sin6_port); + + abortdesc[0] = socket(PF_INET6,SOCK_STREAM,0); + if (abortdesc[0] == RTPSOCKERR) + { + RTPCLOSE(listensock); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in6)); + addr.sin6_family = AF_INET6; + if (bind(abortdesc[0],(struct sockaddr *)&addr,sizeof(struct sockaddr_in6)) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + if (listen(listensock,1) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in6)); + addr.sin6_family = AF_INET6; + addr.sin6_addr = in6addr_loopback; + addr.sin6_port = htons(connectport); + + if (connect(abortdesc[0],(struct sockaddr *)&addr,sizeof(struct sockaddr_in6)) != 0) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + memset(&addr,0,sizeof(struct sockaddr_in6)); + size = sizeof(struct sockaddr_in6); + abortdesc[1] = accept(listensock,(struct sockaddr *)&addr,&size); + if (abortdesc[1] == RTPSOCKERR) + { + RTPCLOSE(listensock); + RTPCLOSE(abortdesc[0]); + return ERR_RTP_UDPV6TRANS_CANTCREATEABORTDESCRIPTORS; + } + + // okay, got the connection, close the listening socket + + RTPCLOSE(listensock); + return 0; +} + +void RTPUDPv6Transmitter::DestroyAbortDescriptors() +{ + RTPCLOSE(abortdesc[0]); + RTPCLOSE(abortdesc[1]); +} + +#else // in a non winsock environment we can use pipes + +int RTPUDPv6Transmitter::CreateAbortDescriptors() +{ + if (pipe(abortdesc) < 0) + return ERR_RTP_UDPV6TRANS_CANTCREATEPIPE; + return 0; +} + +void RTPUDPv6Transmitter::DestroyAbortDescriptors() +{ + close(abortdesc[0]); + close(abortdesc[1]); +} + +#endif // WIN32 + +int RTPUDPv6Transmitter::CreateLocalIPList() +{ + // first try to obtain the list from the network interface info + + if (!GetLocalIPList_Interfaces()) + { + // If this fails, we'll have to depend on DNS info + GetLocalIPList_DNS(); + } + AddLoopbackAddress(); + return 0; +} + +#if (defined(WIN32) || defined(_WIN32_WCE)) + +bool RTPUDPv6Transmitter::GetLocalIPList_Interfaces() +{ + unsigned char buffer[RTPUDPV6TRANS_IFREQBUFSIZE]; + DWORD outputsize; + DWORD numaddresses,i; + SOCKET_ADDRESS_LIST *addrlist; + + if (WSAIoctl(rtpsock,SIO_ADDRESS_LIST_QUERY,NULL,0,&buffer,RTPUDPV6TRANS_IFREQBUFSIZE,&outputsize,NULL,NULL)) + return false; + + addrlist = (SOCKET_ADDRESS_LIST *)buffer; + numaddresses = addrlist->iAddressCount; + for (i = 0 ; i < numaddresses ; i++) + { + SOCKET_ADDRESS *sockaddr = &(addrlist->Address[i]); + if (sockaddr->iSockaddrLength == sizeof(struct sockaddr_in6)) // IPv6 address + { + struct sockaddr_in6 *addr = (struct sockaddr_in6 *)sockaddr->lpSockaddr; + + localIPs.push_back(addr->sin6_addr); + } + } + + if (localIPs.empty()) + return false; + return true; +} + +#else + +#ifdef RTP_SUPPORT_IFADDRS + +bool RTPUDPv6Transmitter::GetLocalIPList_Interfaces() +{ + struct ifaddrs *addrs,*tmp; + + getifaddrs(&addrs); + tmp = addrs; + + while (tmp != 0) + { + if (tmp->ifa_addr != 0 && tmp->ifa_addr->sa_family == AF_INET6) + { + struct sockaddr_in6 *inaddr = (struct sockaddr_in6 *)tmp->ifa_addr; + localIPs.push_back(inaddr->sin6_addr); + } + tmp = tmp->ifa_next; + } + + freeifaddrs(addrs); + + if (localIPs.empty()) + return false; + return true; +} + +#else + +bool RTPUDPv6Transmitter::GetLocalIPList_Interfaces() +{ + return false; +} + +#endif // RTP_SUPPORT_IFADDRS + +#endif // WIN32 + +void RTPUDPv6Transmitter::GetLocalIPList_DNS() +{ + int status; + char name[1024]; + + gethostname(name,1023); + name[1023] = 0; + + struct addrinfo hints; + struct addrinfo *res,*tmp; + + memset(&hints,0,sizeof(struct addrinfo)); + hints.ai_family = AF_INET6; + hints.ai_socktype = 0; + hints.ai_protocol = 0; + + if ((status = getaddrinfo(name,0,&hints,&res)) != 0) + return; + + tmp = res; + while (tmp != 0) + { + if (tmp->ai_family == AF_INET6) + { + struct sockaddr_in6 *addr = (struct sockaddr_in6 *)(tmp->ai_addr); + localIPs.push_back(addr->sin6_addr); + } + tmp = tmp->ai_next; + } + + freeaddrinfo(res); +} + + +void RTPUDPv6Transmitter::AbortWaitInternal() +{ +#if (defined(WIN32) || defined(_WIN32_WCE)) + send(abortdesc[1],"*",1,0); +#else + write(abortdesc[1],"*",1); +#endif // WIN32 +} + + +void RTPUDPv6Transmitter::AddLoopbackAddress() +{ + std::list<in6_addr>::const_iterator it; + bool found = false; + + for (it = localIPs.begin() ; !found && it != localIPs.end() ; it++) + { + if ((*it) == in6addr_loopback) + found = true; + } + + if (!found) + localIPs.push_back(in6addr_loopback); +} + +#ifdef RTPDEBUG +void RTPUDPv6Transmitter::Dump() +{ + if (!init) + std::cout << "Not initialized" << std::endl; + else + { + MAINMUTEX_LOCK + + if (!created) + std::cout << "Not created" << std::endl; + else + { + char str[48]; + in6_addr ip; + uint16_t ip16[8]; + std::list<in6_addr>::const_iterator it; + int i,j; + + std::cout << "Portbase: " << portbase << std::endl; + std::cout << "RTP socket descriptor: " << rtpsock << std::endl; + std::cout << "RTCP socket descriptor: " << rtcpsock << std::endl; + ip = bindIP; + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) { ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); } + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7]); + std::cout << "Bind IP address: " << str << std::endl; + std::Cout << "Multicast interface index: " << mcastifidx << std::endl; + std::cout << "Local IP addresses:" << std::endl; + for (it = localIPs.begin() ; it != localIPs.end() ; it++) + { + ip = (*it); + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) { ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); } + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7]); + std::cout << " " << str << std::endl; + } + std::cout << "Multicast TTL: " << (int)multicastTTL << std::endl; + std::cout << "Receive mode: "; + switch (receivemode) + { + case RTPTransmitter::AcceptAll: + std::cout << "Accept all"; + break; + case RTPTransmitter::AcceptSome: + std::cout << "Accept some"; + break; + case RTPTransmitter::IgnoreSome: + std::cout << "Ignore some"; + } + std::cout << std::endl; + if (receivemode != RTPTransmitter::AcceptAll) + { + acceptignoreinfo.GotoFirstElement(); + while(acceptignoreinfo.HasCurrentElement()) + { + ip = acceptignoreinfo.GetCurrentKey(); + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) { ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); } + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7]); + PortInfo *pinfo = acceptignoreinfo.GetCurrentElement(); + std::cout << " " << str << ": "; + if (pinfo->all) + { + std::cout << "All ports"; + if (!pinfo->portlist.empty()) + std::cout << ", except "; + } + + std::list<uint16_t>::const_iterator it; + + for (it = pinfo->portlist.begin() ; it != pinfo->portlist.end() ; ) + { + std::cout << (*it); + it++; + if (it != pinfo->portlist.end()) + std::cout << ", "; + } + std::cout << std::endl; + } + } + + std::cout << "Local host name: "; + if (localhostname == 0) + std::cout << "Not set"; + else + std::cout << localhostname; + std::cout << std::endl; + + std::cout << "List of destinations: "; + destinations.GotoFirstElement(); + if (destinations.HasCurrentElement()) + { + std::cout << std::endl; + do + { + std::cout << " " << destinations.GetCurrentElement().GetDestinationString() << std::endl; + destinations.GotoNextElement(); + } while (destinations.HasCurrentElement()); + } + else + std::cout << "Empty" << std::endl; + + std::cout << "Supports multicasting: " << ((supportsmulticasting)?"Yes":"No") << std::endl; +#ifdef RTP_SUPPORT_IPV6MULTICAST + std::cout << "List of multicast groups: "; + multicastgroups.GotoFirstElement(); + if (multicastgroups.HasCurrentElement()) + { + std::cout << std::endl; + do + { + ip = multicastgroups.GetCurrentElement(); + for (i = 0,j = 0 ; j < 8 ; j++,i += 2) { ip16[j] = (((uint16_t)ip.s6_addr[i])<<8); ip16[j] |= ((uint16_t)ip.s6_addr[i+1]); } + RTP_SNPRINTF(str,48,"%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X",(int)ip16[0],(int)ip16[1],(int)ip16[2],(int)ip16[3],(int)ip16[4],(int)ip16[5],(int)ip16[6],(int)ip16[7]); + std::cout << " " << str << std::endl; + multicastgroups.GotoNextElement(); + } while (multicastgroups.HasCurrentElement()); + } + else + std::cout << "Empty" << std::endl; +#endif // RTP_SUPPORT_IPV6MULTICAST + + std::cout << "Number of raw packets in queue: " << rawpacketlist.size() << std::endl; + std::cout << "Maximum allowed packet size: " << maxpacksize << std::endl; + } + + MAINMUTEX_UNLOCK + } + +} +#endif // RTPDEBUG + +#endif // RTP_SUPPORT_IPV6 + diff --git a/src/rtpudpv6transmitter.h b/src/rtpudpv6transmitter.h new file mode 100644 index 0000000..41f6335 --- /dev/null +++ b/src/rtpudpv6transmitter.h @@ -0,0 +1,313 @@ +/* + + This file is a part of JRTPLIB + Copyright (c) 1999-2007 Jori Liesenborgs + + Contact: jori.liesenborgs@gmail.com + + This library was developed at the "Expertisecentrum Digitale Media" + (http://www.edm.uhasselt.be), a research center of the Hasselt University + (http://www.uhasselt.be). The library is based upon work done for + my thesis at the School for Knowledge Technology (Belgium/The Netherlands). + + Permission is hereby granted, free of charge, to any person obtaining a + copy of this software and associated documentation files (the "Software"), + to deal in the Software without restriction, including without limitation + the rights to use, copy, modify, merge, publish, distribute, sublicense, + and/or sell copies of the Software, and to permit persons to whom the + Software is furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included + in all copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + IN THE SOFTWARE. + +*/ + +/** + * \file rtpudpv6transmitter.h + */ + +#ifndef RTPUDPV6TRANSMITTER_H + +#define RTPUDPV6TRANSMITTER_H + +#include "rtpconfig.h" + +#ifdef RTP_SUPPORT_IPV6 + +#include "rtptransmitter.h" +#include "rtpipv6destination.h" +#include "rtphashtable.h" +#include "rtpkeyhashtable.h" +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + #include <netinet/in.h> +#endif // WIN32 +#include <string.h> +#include <list> + +#ifdef RTP_SUPPORT_THREAD + #include <jmutex.h> +#endif // RTP_SUPPORT_THREAD + +#define RTPUDPV6TRANS_HASHSIZE 8317 +#define RTPUDPV6TRANS_DEFAULTPORTBASE 5000 + +#define RTPUDPV6TRANS_RTPRECEIVEBUFFER 32768 +#define RTPUDPV6TRANS_RTCPRECEIVEBUFFER 32768 +#define RTPUDPV6TRANS_RTPTRANSMITBUFFER 32768 +#define RTPUDPV6TRANS_RTCPTRANSMITBUFFER 32768 + +/** Parameters for the UDP over IPv6 transmitter. */ +class RTPUDPv6TransmissionParams : public RTPTransmissionParams +{ +public: + RTPUDPv6TransmissionParams():RTPTransmissionParams(RTPTransmitter::IPv6UDPProto) { portbase = RTPUDPV6TRANS_DEFAULTPORTBASE; for (int i = 0 ; i < 16 ; i++) bindIP.s6_addr[i] = 0; multicastTTL = 1; mcastifidx = 0; rtpsendbuf = RTPUDPV6TRANS_RTPTRANSMITBUFFER; rtprecvbuf= RTPUDPV6TRANS_RTPRECEIVEBUFFER; rtcpsendbuf = RTPUDPV6TRANS_RTCPTRANSMITBUFFER; rtcprecvbuf = RTPUDPV6TRANS_RTCPRECEIVEBUFFER; } + + /** Sets the IP address which is used to bind the sockets to \c ip. */ + void SetBindIP(in6_addr ip) { bindIP = ip; } + + /** Sets the multicast interface index. */ + void SetMulticastInterfaceIndex(unsigned int idx) { mcastifidx = idx; } + + /** Sets the RTP portbase to \c pbase. This has to be an even number. */ + void SetPortbase(uint16_t pbase) { portbase = pbase; } + + /** Sets the multicast TTL to be used to \c mcastTTL. */ + void SetMulticastTTL(uint8_t mcastTTL) { multicastTTL = mcastTTL; } + + /** Passes a list of IP addresses which will be used as the local IP addresses. */ + void SetLocalIPList(std::list<in6_addr> &iplist) { localIPs = iplist; } + + /** Clears the list of local IP addresses. + * Clears the list of local IP addresses. An empty list will make the transmission component + * itself determine the local IP addresses. + */ + void ClearLocalIPList() { localIPs.clear(); } + + /** Returns the IP address which will be used to bind the sockets. */ + in6_addr GetBindIP() const { return bindIP; } + + /** Returns the multicast interface index. */ + unsigned int GetMulticastInterfaceIndex() const { return mcastifidx; } + + /** Returns the RTP portbase which will be used (default is 5000). */ + uint16_t GetPortbase() const { return portbase; } + + /** Returns the multicast TTL which will be used (default is 1). */ + uint8_t GetMulticastTTL() const { return multicastTTL; } + + /** Returns the list of local IP addresses. */ + const std::list<in6_addr> &GetLocalIPList() const { return localIPs; } + + /** Sets the RTP socket's send buffer size. */ + void SetRTPSendBuffer(int s) { rtpsendbuf = s; } + + /** Sets the RTP socket's receive buffer size. */ + void SetRTPReceiveBuffer(int s) { rtprecvbuf = s; } + + /** Sets the RTCP socket's send buffer size. */ + void SetRTCPSendBuffer(int s) { rtcpsendbuf = s; } + + /** Sets the RTCP socket's receive buffer size. */ + void SetRTCPReceiveBuffer(int s) { rtcprecvbuf = s; } + + /** Returns the RTP socket's send buffer size. */ + int GetRTPSendBuffer() const { return rtpsendbuf; } + + /** Returns the RTP socket's receive buffer size. */ + int GetRTPReceiveBuffer() const { return rtprecvbuf; } + + /** Returns the RTCP socket's send buffer size. */ + int GetRTCPSendBuffer() const { return rtcpsendbuf; } + + /** Returns the RTCP socket's receive buffer size. */ + int GetRTCPReceiveBuffer() const { return rtcprecvbuf; } +private: + uint16_t portbase; + in6_addr bindIP; + unsigned int mcastifidx; + std::list<in6_addr> localIPs; + uint8_t multicastTTL; + int rtpsendbuf, rtprecvbuf; + int rtcpsendbuf, rtcprecvbuf; +}; + +/** Additional information about the UDP over IPv6 transmitter. */ +class RTPUDPv6TransmissionInfo : public RTPTransmissionInfo +{ +public: +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + RTPUDPv6TransmissionInfo(std::list<in6_addr> iplist,int rtpsock,int rtcpsock) : RTPTransmissionInfo(RTPTransmitter::IPv6UDPProto) +#else + RTPUDPv6TransmissionInfo(std::list<in6_addr> iplist,SOCKET rtpsock,SOCKET rtcpsock) : RTPTransmissionInfo(RTPTransmitter::IPv6UDPProto) +#endif // WIN32 + { localIPlist = iplist; rtpsocket = rtpsock; rtcpsocket = rtcpsock; } + + ~RTPUDPv6TransmissionInfo() { } + + /** Returns the list of IPv6 addresses the transmitter considers to be the local IP addresses. */ + std::list<in6_addr> GetLocalIPList() const { return localIPlist; } +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + /** Returns the socket descriptor used for receiving and transmitting RTP packets. */ + int GetRTPSocket() const { return rtpsocket; } + + /** Returns the socket descriptor used for receiving and transmitting RTCP packets. */ + int GetRTCPSocket() const { return rtcpsocket; } +#else + SOCKET GetRTPSocket() const { return rtpsocket; } + SOCKET GetRTCPSocket() const { return rtcpsocket; } +#endif // WIN32 +private: + std::list<in6_addr> localIPlist; +#if ! (defined(WIN32) || defined(_WIN32_WCE)) + int rtpsocket,rtcpsocket; +#else + SOCKET rtpsocket,rtcpsocket; +#endif // WIN32 +}; + +class RTPUDPv6Trans_GetHashIndex_IPv6Dest +{ +public: + static int GetIndex(const RTPIPv6Destination &d) { in6_addr ip = d.GetIP(); return ((((uint32_t)ip.s6_addr[12])<<24)|(((uint32_t)ip.s6_addr[13])<<16)|(((uint32_t)ip.s6_addr[14])<<8)|((uint32_t)ip.s6_addr[15]))%RTPUDPV6TRANS_HASHSIZE; } +}; + +class RTPUDPv6Trans_GetHashIndex_in6_addr +{ +public: + static int GetIndex(const in6_addr &ip) { return ((((uint32_t)ip.s6_addr[12])<<24)|(((uint32_t)ip.s6_addr[13])<<16)|(((uint32_t)ip.s6_addr[14])<<8)|((uint32_t)ip.s6_addr[15]))%RTPUDPV6TRANS_HASHSIZE; } +}; + +#define RTPUDPV6TRANS_HEADERSIZE (40+8) + +/** An UDP over IPv6 transmitter. + * This class inherits the RTPTransmitter interface and implements a transmission component + * which uses UDP over IPv6 to send and receive RTP and RTCP data. The component's parameters + * are described by the class RTPUDPv6TransmissionParams. The functions which have an RTPAddress + * argument require an argument of RTPIPv6Address. The GetTransmissionInfo member function + * returns an instance of type RTPUDPv6TransmissionInfo. + */ +class RTPUDPv6Transmitter : public RTPTransmitter +{ +public: + RTPUDPv6Transmitter(RTPMemoryManager *mgr); + ~RTPUDPv6Transmitter(); + + int Init(bool treadsafe); + int Create(size_t maxpacksize,const RTPTransmissionParams *transparams); + void Destroy(); + RTPTransmissionInfo *GetTransmissionInfo(); + + int GetLocalHostName(uint8_t *buffer,size_t *bufferlength); + bool ComesFromThisTransmitter(const RTPAddress *addr); + size_t GetHeaderOverhead() { return RTPUDPV6TRANS_HEADERSIZE; } + + int Poll(); + int WaitForIncomingData(const RTPTime &delay,bool *dataavailable = 0); + int AbortWait(); + + int SendRTPData(const void *data,size_t len); + int SendRTCPData(const void *data,size_t len); + + int AddDestination(const RTPAddress &addr); + int DeleteDestination(const RTPAddress &addr); + void ClearDestinations(); + + bool SupportsMulticasting(); + int JoinMulticastGroup(const RTPAddress &addr); + int LeaveMulticastGroup(const RTPAddress &addr); + void LeaveAllMulticastGroups(); + + int SetReceiveMode(RTPTransmitter::ReceiveMode m); + int AddToIgnoreList(const RTPAddress &addr); + int DeleteFromIgnoreList(const RTPAddress &addr); + void ClearIgnoreList(); + int AddToAcceptList(const RTPAddress &addr); + int DeleteFromAcceptList(const RTPAddress &addr); + void ClearAcceptList(); + int SetMaximumPacketSize(size_t s); + + bool NewDataAvailable(); + RTPRawPacket *GetNextPacket(); +#ifdef RTPDEBUG + void Dump(); +#endif // RTPDEBUG +private: + int CreateLocalIPList(); + bool GetLocalIPList_Interfaces(); + void GetLocalIPList_DNS(); + void AddLoopbackAddress(); + void FlushPackets(); + int PollSocket(bool rtp); + int ProcessAddAcceptIgnoreEntry(in6_addr ip,uint16_t port); + int ProcessDeleteAcceptIgnoreEntry(in6_addr ip,uint16_t port); +#ifdef RTP_SUPPORT_IPV6MULTICAST + bool SetMulticastTTL(uint8_t ttl); +#endif // RTP_SUPPORT_IPV6MULTICAST + bool ShouldAcceptData(in6_addr srcip,uint16_t srcport); + void ClearAcceptIgnoreInfo(); + + bool init; + bool created; + bool waitingfordata; +#if (defined(WIN32) || defined(_WIN32_WCE)) + SOCKET rtpsock,rtcpsock; +#else // not using winsock + int rtpsock,rtcpsock; +#endif // WIN32 + in6_addr bindIP; + unsigned int mcastifidx; + std::list<in6_addr> localIPs; + uint16_t portbase; + uint8_t multicastTTL; + RTPTransmitter::ReceiveMode receivemode; + + uint8_t *localhostname; + size_t localhostnamelength; + + RTPHashTable<const RTPIPv6Destination,RTPUDPv6Trans_GetHashIndex_IPv6Dest,RTPUDPV6TRANS_HASHSIZE> destinations; +#ifdef RTP_SUPPORT_IPV6MULTICAST + RTPHashTable<const in6_addr,RTPUDPv6Trans_GetHashIndex_in6_addr,RTPUDPV6TRANS_HASHSIZE> multicastgroups; +#endif // RTP_SUPPORT_IPV6MULTICAST + std::list<RTPRawPacket*> rawpacketlist; + + bool supportsmulticasting; + size_t maxpacksize; + + class PortInfo + { + public: + PortInfo() { all = false; } + + bool all; + std::list<uint16_t> portlist; + }; + + RTPKeyHashTable<const in6_addr,PortInfo*,RTPUDPv6Trans_GetHashIndex_in6_addr,RTPUDPV6TRANS_HASHSIZE> acceptignoreinfo; + + // notification descriptors for AbortWait (0 is for reading, 1 for writing) +#if (defined(WIN32) || defined(_WIN32_WCE)) + SOCKET abortdesc[2]; +#else + int abortdesc[2]; +#endif // WIN32 + int CreateAbortDescriptors(); + void DestroyAbortDescriptors(); + void AbortWaitInternal(); +#ifdef RTP_SUPPORT_THREAD + JMutex mainmutex,waitmutex; + int threadsafe; +#endif // RTP_SUPPORT_THREAD +}; + +#endif // RTP_SUPPORT_IPV6 + +#endif // RTPUDPV6TRANSMITTER_H + |