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Diffstat (limited to 'src/rtcpsrpacket.h')
| -rw-r--r-- | src/rtcpsrpacket.h | 247 |
1 files changed, 247 insertions, 0 deletions
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 + |