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Diffstat (limited to 'freeseer.py')
| -rwxr-xr-x | freeseer.py | 315 |
1 files changed, 315 insertions, 0 deletions
diff --git a/freeseer.py b/freeseer.py new file mode 100755 index 0000000..1501120 --- /dev/null +++ b/freeseer.py @@ -0,0 +1,315 @@ +#!/usr/bin/python + +# freeseer - vga/presentation capture software +# +# Copyright (C) 2010 Free and Open Source Software Learning Centre +# http://fosslc.org +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +# For support, questions, suggestions or any other inquiries, visit: +# the #fosslc channel on IRC (freenode.net) + +NAME = "freeseer" +VERSION = "2009.11" + +import sys, time, alsaaudio, audioop +from PyQt4 import QtGui, QtCore + +CONFIG = dict() + +# Commandline processes +CMD_MPLAYER = ("mplayer -slave -quiet -noconsolecontrols -nomouseinput -wid %(WID)s -tv driver=%(VODRIVER)s:outfmt=rgb24:device=%(VODEVICE)s -fps 10 tv://") +CMD_MENCODER = ("mencoder -tv driver=%(VODRIVER)s:outfmt=bgr24:device=%(VODEVICE)s:forceaudio:alsa -fps 10 tv:// -oac lavc -ovc lavc -lavcopts vcodec=mpeg4:keyint=100:vbitrate=8000:vhq:acodec=vorbis -o \"%(FILENAME)s\"") + +# Initialize some defaults +CONFIG['FILENAME'] = 'default' +CONFIG['FILE_INDEX'] = 0 +CONFIG['VODEVICE'] = '/dev/video0' +CONFIG['VODRIVER'] = 'v4l' + +# Find video devices +viddevs=0 +dev='/dev/video' + str(viddevs) +while QtCore.QFile.exists(dev): + print 'Video device ' + str(viddevs) + ' found.' + viddevs=viddevs+1 + dev='/dev/video'+str(viddevs) +print 'Found ' + str(viddevs) + ' video devices.' + +######################################## +# +# Widget to hold mplayer instance in +# +######################################## +class MPlayerWidget(QtGui.QWidget): + + def __init__(self, parent): + QtGui.QWidget.__init__(self, parent) + CONFIG["WID"] = self.winId() + self.mplayer = QtCore.QProcess() + self.mplayer.start(CMD_MPLAYER % CONFIG) + self.connect(self.mplayer, QtCore.SIGNAL('readyReadStandardOutput()'), self.mpStdOut) + + def __del__(self): + self.mplayer.close() + + def mpstart(self): + self.mplayer.start(CMD_MPLAYER % CONFIG) + + def mpStdOut(self): + print QtCore.QString(self.mplayer.readAllStandardOutput()) + +class volcheck(QtCore.QThread): + def __init__(self, parent): + QtCore.QThread.__init__(self, parent) + self.parent = parent + + def run(self): + inp = alsaaudio.PCM(alsaaudio.PCM_CAPTURE, alsaaudio.PCM_NONBLOCK) + inp.setchannels(1) + inp.setrate(8000) + inp.setformat(alsaaudio.PCM_FORMAT_S16_LE) + + inp.setperiodsize(160) + + while True: + l,data = inp.read() + if l: + #print audioop.max(data, 2) + self.parent.volume.setValue(audioop.max(data, 2)) + time.sleep(.001) + +class EditTalks(QtGui.QWidget): + def __init__(self, parent=None): + QtGui.QWidget.__init__(self, parent) + + # Layout + layout = QtGui.QHBoxLayout() + + leftside = QtGui.QVBoxLayout() + self.editBox = QtGui.QLineEdit() + leftside.addWidget(self.editBox) + + self.talkList = QtGui.QListWidget() + leftside.addWidget(self.talkList) + + rightside = QtGui.QVBoxLayout() + self.addTalkButton = QtGui.QPushButton('add') + rightside.addWidget(self.addTalkButton) + self.delTalkButton = QtGui.QPushButton('remove') + rightside.addWidget(self.delTalkButton) + self.savTalkButton = QtGui.QPushButton('save') + rightside.addWidget(self.savTalkButton) + + layout.addLayout(leftside) + layout.addLayout(rightside) + self.setLayout(layout) + # End Layout + + # Connections + self.connect(self.addTalkButton, QtCore.SIGNAL('clicked()'), self.addTalk) + self.connect(self.delTalkButton, QtCore.SIGNAL('clicked()'), self.delTalk) + self.connect(self.savTalkButton, QtCore.SIGNAL('clicked()'), self.saveTalks) + + # Add talks + file = QtCore.QFile('/home/zxiiro/workspace/Kapture/src/talks.txt') + file.open(QtCore.QIODevice.ReadOnly) + + txtStream = QtCore.QTextStream(file) + while not txtStream.atEnd(): + text = txtStream.readLine() + self.talkList.addItem(text) + file.close() + + def addTalk(self): + self.talkList.addItem(self.editBox.text()) + + def delTalk(self): + self.talkList.takeItem(self.talkList.currentRow()) + + def saveTalks(self): + file = QtCore.QFile('/home/zxiiro/workspace/Kapture/src/talks.txt') + file.open(QtCore.QIODevice.WriteOnly) + + txtStream = QtCore.QTextStream(file) + i = 0 + while i < self.talkList.count(): + txtStream << self.talkList.item(i).text() << '\n' + i = i+1 + + txtStream.flush() + file.flush() + file.close() + +class MainApp(QtGui.QWidget): + + def __init__(self, parent=None): + QtGui.QWidget.__init__(self, parent) + + ############################## + # Variable Initialization + ############################## + self.mencoder = QtCore.QProcess() + + ############################# + # Begin Layout + ############################# + layout = QtGui.QVBoxLayout() + previewbox = QtGui.QHBoxLayout() + + self.record = QtGui.QPushButton("Record") + self.record.setCheckable(True) + layout.addWidget(self.record) + + videoLabel = QtGui.QLabel('Device:') + videoLabel.setMaximumWidth(50) + self.videoDevices = QtGui.QComboBox() + i = 0 + while i < viddevs: + self.videoDevices.addItem('/dev/video' + str(i)) + i=i+1 + self.videoDrivers = QtGui.QComboBox() + self.videoDrivers.addItem('v4l') + self.videoDrivers.addItem('v4l2') + viddevLayout = QtGui.QHBoxLayout() + viddevLayout.addWidget(videoLabel) + viddevLayout.addWidget(self.videoDevices) + viddevLayout.addWidget(self.videoDrivers) + layout.addLayout(viddevLayout) + + talkLabel = QtGui.QLabel('Title:') + talkLabel.setMaximumWidth(50) + self.talk = QtGui.QComboBox() + self.talk.addItem('Foo Bar - Test Presentation') + self.talkEditButton = QtGui.QPushButton("Edit") + self.talkEditButton.setMaximumWidth(50) + talkLayout = QtGui.QHBoxLayout() + talkLayout.addWidget(talkLabel) + talkLayout.addWidget(self.talk) + talkLayout.addWidget(self.talkEditButton) + layout.addLayout(talkLayout) + + self.mplayer = MPlayerWidget(self) + previewbox.addWidget(self.mplayer) + self.mplayerp = self.mplayer.mplayer + + self.volume = QtGui.QSlider(QtCore.Qt.Vertical, self) + self.volume.setFocusPolicy(QtCore.Qt.NoFocus) + self.volume.setRange(1, 32768) + previewbox.addWidget(self.volume) + + layout.addLayout(previewbox) + + self.logger = QtGui.QTextBrowser(self) + self.logger.setMaximumHeight(30) + layout.addWidget(self.logger) + + self.setLayout(layout) + ############################## + # End layout + ############################## + + # Connections + self.connect(self.record, QtCore.SIGNAL('toggled(bool)'), self.Capture) + self.connect(self.mencoder, QtCore.SIGNAL('readyReadStandardOutput()'), self.mencoderReadOutput) + self.connect(self.talkEditButton, QtCore.SIGNAL('clicked()'), self.editTalks) + self.connect(self.videoDevices, QtCore.SIGNAL('currentIndexChanged(int)'), self.changeVideoDevice) + self.connect(self.videoDrivers, QtCore.SIGNAL('currentIndexChanged(int)'), self.changeVideoDevice) + + self.volcheck = volcheck(self) + self.volcheck.start() + + # Add talks + file = QtCore.QFile('/home/zxiiro/workspace/Kapture/src/talks.txt') + file.open(QtCore.QIODevice.ReadOnly) + + txtStream = QtCore.QTextStream(file) + while not txtStream.atEnd(): + text = txtStream.readLine() + self.talk.addItem(text) + file.close() + + def changeVideoDevice(self): + print 'Changing video devices' + self.mplayerp.close() + CONFIG['VODEVICE'] = self.videoDevices.currentText() + CONFIG['VODRIVER'] = self.videoDrivers.currentText() + self.mplayer.mpstart() + + def closeEvent(self, event): + print 'Exiting freeseer...' + self.mplayer.mplayer.close() + event.accept() + + def mencoderReadOutput(self): + self.logger.setText(QtCore.QString(self.mencoder.readAllStandardOutput())) + + def editTalks(self): + self.talkEdit = EditTalks() + self.talkEdit.show() + self.talkEdit.resize(480, 320) + + # Code for starting MEncoder + def Capture(self): + #print self.mencoder.state() + if not (self.record.isChecked()): + self.stopCapture() + return + + self.checkFileExists() + + if self.videoDrivers.currentText() == 'v4l2': + self.mplayerp.close() + + self.startCapture() + + # checks if a filename exists or not and increments index until it finds + # at filename that is not taken + def checkFileExists(self): + i = 0 + while True: + CONFIG['FILENAME'] = QtCore.QDate.currentDate().toString(QtCore.Qt.ISODate) + " " + self.talk.currentText() + " (" + str(i) + ").avi" + rfile = QtCore.QFileInfo(CONFIG['FILENAME']) + + if (rfile.exists()): + i += 1 + print "File Exists. Incrementing index to " + str(i) + else: + break + + def startCapture(self): + self.mencoder.start(CMD_MENCODER % CONFIG) + self.record.setText('Stop') + print 'Started capture' + + def stopCapture(self): + self.mencoder.close() + self.record.setText('Record') + print 'Stopping capture' + + + + +####################### +# Program starts here # +####################### +app = QtGui.QApplication(sys.argv) + +widget = MainApp() +widget.show() +widget.resize(480, 320) + +sys.exit(app.exec_()) + |