diff options
Diffstat (limited to 'glive.py')
| -rw-r--r-- | glive.py | 324 |
1 files changed, 158 insertions, 166 deletions
@@ -43,21 +43,17 @@ class Glive: def __init__(self, pca): self.window = None self.ca = pca - self.pipes = [] + self._eos_cb = None self.playing = False + self.picExposureOpen = False self.AUDIO_TRANSCODE_ID = 0 self.TRANSCODE_ID = 0 self.VIDEO_TRANSCODE_ID = 0 - self.PIPETYPE_SUGAR_JHBUILD = 0 - self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD = 1 - self.PIPETYPE_X_VIDEO_DISPLAY = 2 - self.PIPETYPE_AUDIO_RECORD = 3 - self._PIPETYPE = self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD - self._LAST_PIPETYPE = self._PIPETYPE - self._NEXT_PIPETYPE = -1 + self.PHOTO_MODE_PHOTO = 0 + self.PHOTO_MODE_AUDIO = 1 self.TRANSCODE_UPDATE_INTERVAL = 200 @@ -70,27 +66,99 @@ class Glive: self.VIDEO_HEIGHT_LARGE = 150 self.VIDEO_FRAMERATE_SMALL = 10 + self.pipeline = gst.Pipeline("my-pipeline") + self.createPhotoBin() + self.createAudioBin() + self.createVideoBin() + self.createPipeline() self.thumbPipes = [] self.muxPipes = [] - self._nextPipe() + bus = self.pipeline.get_bus() + bus.enable_sync_message_emission() + bus.add_signal_watch() + self.SYNC_ID = bus.connect('sync-message::element', self._onSyncMessageCb) + self.MESSAGE_ID = bus.connect('message', self._onMessageCb) - def setPipeType( self, type ): - self._NEXT_PIPETYPE = type + def createPhotoBin ( self ): + queue = gst.element_factory_make("queue", "pbqueue") + queue.set_property("leaky", True) + queue.set_property("max-size-buffers", 1) + colorspace = gst.element_factory_make("ffmpegcolorspace", "pbcolorspace") + jpeg = gst.element_factory_make("jpegenc", "pbjpeg") - def getPipeType( self ): - return self._PIPETYPE + sink = gst.element_factory_make("fakesink", "pbsink") + self.HANDOFF_ID = sink.connect("handoff", self.copyPic) + sink.set_property("signal-handoffs", True) + self.photobin = gst.Bin("photobin") + self.photobin.add(queue, colorspace, jpeg, sink) - def pipe(self): - return self.pipes[ len(self.pipes)-1 ] + gst.element_link_many(queue, colorspace, jpeg, sink) + pad = queue.get_static_pad("sink") + self.photobin.add_pad(gst.GhostPad("sink", pad)) - def el(self, name): - return self.pipe().get_by_name(name) + def createAudioBin ( self ): + src = gst.element_factory_make("alsasrc", "absrc") + srccaps = gst.Caps("audio/x-raw-int,rate=16000,channels=1,depth=16") + enc = gst.element_factory_make("wavenc", "abenc") + + sink = gst.element_factory_make("filesink", "absink") + sink.set_property("location", os.path.join(Instance.instancePath, "output.wav")) + + self.audiobin = gst.Bin("audiobin") + self.audiobin.add(src, enc, sink) + + src.link(enc, srccaps) + enc.link(sink) + + def createVideoBin ( self ): + queue = gst.element_factory_make("queue", "vbqueue") + + rate = gst.element_factory_make("videorate", "vbrate") + ratecaps = gst.Caps('video/x-raw-yuv,framerate='+str(self.VIDEO_FRAMERATE_SMALL)+'/1') + + scale = gst.element_factory_make("videoscale", "vbscale") + scalecaps = gst.Caps('video/x-raw-yuv,width='+str(self.VIDEO_WIDTH_SMALL)+',height='+str(self.VIDEO_HEIGHT_SMALL)) + + colorspace = gst.element_factory_make("ffmpegcolorspace", "vbcolorspace") + + enc = gst.element_factory_make("theoraenc", "vbenc") + enc.set_property("quality", 16) + + mux = gst.element_factory_make("oggmux", "vbmux") + + sink = gst.element_factory_make("filesink", "vbfile") + sink.set_property("location", os.path.join(Instance.instancePath, "output.ogg")) + + self.videobin = gst.Bin("videobin") + self.videobin.add(queue, rate, scale, colorspace, enc, mux, sink) + + queue.link(rate) + rate.link(scale, ratecaps) + scale.link(colorspace, scalecaps) + gst.element_link_many(colorspace, enc, mux, sink) + + pad = queue.get_static_pad("sink") + self.videobin.add_pad(gst.GhostPad("sink", pad)) + + def createPipeline ( self ): + src = gst.element_factory_make("v4l2src", "camsrc") + try: + # old gst-plugins-good does not have this property + src.set_property("queue-size", 2) + except: + pass + + tee = gst.element_factory_make("tee", "tee") + queue = gst.element_factory_make("queue", "dispqueue") + xvsink = gst.element_factory_make("xvimagesink", "xvsink") + self.pipeline.add(src, tee, queue, xvsink) + gst.element_link_many(src, tee, queue, xvsink) def thumbPipe(self): return self.thumbPipes[ len(self.thumbPipes)-1 ] @@ -109,134 +177,28 @@ class Glive: def play(self): - self.pipe().set_state(gst.STATE_PLAYING) + self.pipeline.set_state(gst.STATE_PLAYING) self.playing = True - def pause(self): - self.pipe().set_state(gst.STATE_PAUSED) + self.pipeline.set_state(gst.STATE_PAUSED) self.playing = False def stop(self): - self.pipe().set_state(gst.STATE_NULL) + self.pipeline.set_state(gst.STATE_NULL) self.playing = False - self._LAST_PIPETYPE = self._PIPETYPE - if (self._NEXT_PIPETYPE != -1): - self._PIPETYPE = self._NEXT_PIPETYPE - self._nextPipe() - self._NEXT_PIPETYPE = -1 - - def is_playing(self): return self.playing - def idlePlayElement(self, element): element.set_state(gst.STATE_PLAYING) return False - def _nextPipe(self): - if ( len(self.pipes) > 0 ): - - pipe = self.pipe() - bus = pipe.get_bus() - n = len(self.pipes)-1 - n = str(n) - - #only disconnect what was connected based on the last pipetype - if ((self._LAST_PIPETYPE == self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD) - or (self._LAST_PIPETYPE == self.PIPETYPE_X_VIDEO_DISPLAY) - or (self._LAST_PIPETYPE == self.PIPETYPE_AUDIO_RECORD) ): - bus.disconnect(self.SYNC_ID) - bus.remove_signal_watch() - bus.disable_sync_message_emission() - if (self._LAST_PIPETYPE == self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD): - pipe.get_by_name("picFakesink").disconnect(self.HANDOFF_ID) - if (self._LAST_PIPETYPE == self.PIPETYPE_AUDIO_RECORD): - pipe.get_by_name("picFakesink").disconnect(self.HANDOFF_ID) - - v4l2 = False - if (self._PIPETYPE == self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD): - pipeline = gst.parse_launch("v4l2src name=v4l2src ! tee name=videoTee ! queue name=movieQueue ! videorate name=movieVideorate ! video/x-raw-yuv,framerate="+str(self.VIDEO_FRAMERATE_SMALL)+"/1 ! videoscale name=movieVideoscale ! video/x-raw-yuv,width="+str(self.VIDEO_WIDTH_SMALL)+",height="+str(self.VIDEO_HEIGHT_SMALL)+" ! ffmpegcolorspace name=movieFfmpegcolorspace ! theoraenc quality=16 name=movieTheoraenc ! oggmux name=movieOggmux ! filesink name=movieFilesink videoTee. ! xvimagesink name=xvimagesink videoTee. ! queue name=picQueue ! ffmpegcolorspace name=picFfmpegcolorspace ! jpegenc name=picJPegenc ! fakesink name=picFakesink alsasrc name=audioAlsasrc ! audio/x-raw-int,rate=16000,channels=1,depth=16 ! tee name=audioTee ! wavenc name=audioWavenc ! filesink name=audioFilesink audioTee. ! fakesink name=audioFakesink" ) - v4l2 = True - - videoTee = pipeline.get_by_name('videoTee') - - picQueue = pipeline.get_by_name('picQueue') - picQueue.set_property("leaky", True) - picQueue.set_property("max-size-buffers", 1) - picFakesink = pipeline.get_by_name("picFakesink") - self.HANDOFF_ID = picFakesink.connect("handoff", self.copyPic) - picFakesink.set_property("signal-handoffs", True) - self.picExposureOpen = False - - movieQueue = pipeline.get_by_name("movieQueue") - movieFilesink = pipeline.get_by_name("movieFilesink") - movieFilepath = os.path.join(Instance.instancePath, "output.ogg" ) #ogv - movieFilesink.set_property("location", movieFilepath ) - - audioFilesink = pipeline.get_by_name('audioFilesink') - audioFilepath = os.path.join(Instance.instancePath, "output.wav") - audioFilesink.set_property("location", audioFilepath ) - audioTee = pipeline.get_by_name('audioTee') - audioWavenc = pipeline.get_by_name('audioWavenc') - - audioTee.unlink(audioWavenc) - videoTee.unlink(movieQueue) - videoTee.unlink(picQueue) - - elif (self._PIPETYPE == self.PIPETYPE_X_VIDEO_DISPLAY ): - pipeline = gst.parse_launch("v4l2src name=v4l2src ! queue name=xQueue ! videorate ! video/x-raw-yuv,framerate=2/1 ! videoscale ! video/x-raw-yuv,width="+str(ui.UI.dim_PIPW)+",height="+str(ui.UI.dim_PIPH)+" ! ffmpegcolorspace ! ximagesink name=ximagesink") - v4l2 = True - - elif (self._PIPETYPE == self.PIPETYPE_AUDIO_RECORD): - pipeline = gst.parse_launch("v4l2src name=v4l2src ! tee name=videoTee ! xvimagesink name=xvimagesink videoTee. ! queue name=picQueue ! ffmpegcolorspace name=picFfmpegcolorspace ! jpegenc name=picJPegenc ! fakesink name=picFakesink alsasrc name=audioAlsasrc ! audio/x-raw-int,rate=16000,channels=1,depth=16 ! queue name=audioQueue ! audioconvert name=audioAudioconvert ! wavenc name=audioWavenc ! filesink name=audioFilesink" ) - v4l2 = True - - audioQueue = pipeline.get_by_name('audioQueue') - audioAudioconvert = pipeline.get_by_name('audioAudioconvert') - audioQueue.unlink(audioAudioconvert) - - videoTee = pipeline.get_by_name('videoTee') - picQueue = pipeline.get_by_name('picQueue') - picQueue.set_property("leaky", True) - picQueue.set_property("max-size-buffers", 1) - picFakesink = pipeline.get_by_name('picFakesink') - self.HANDOFF_ID = picFakesink.connect("handoff", self.copyPic) - picFakesink.set_property("signal-handoffs", True) - self.picExposureOpen = False - videoTee.unlink(picQueue) - - audioFilesink = pipeline.get_by_name('audioFilesink') - audioFilepath = os.path.join(Instance.instancePath, "output.wav") - audioFilesink.set_property("location", audioFilepath ) - - elif (self._PIPETYPE == self.PIPETYPE_SUGAR_JHBUILD): - pipeline = gst.parse_launch("fakesrc ! queue name=xQueue ! videorate ! video/x-raw-yuv,framerate=2/1 ! videoscale ! video/x-raw-yuv,width=160,height=120 ! ffmpegcolorspace ! ximagesink name=ximagesink") - - if (v4l2): - v4l2src = pipeline.get_by_name('v4l2src') - try: - v4l2src.set_property("queue-size", 2) - except: - pass - - if ((self._PIPETYPE == self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD) - or (self._PIPETYPE == self.PIPETYPE_X_VIDEO_DISPLAY) - or (self._PIPETYPE == self.PIPETYPE_AUDIO_RECORD)): - bus = pipeline.get_bus() - bus.enable_sync_message_emission() - bus.add_signal_watch() - self.SYNC_ID = bus.connect('sync-message::element', self._onSyncMessageCb) - self.MESSAGE_ID = bus.connect('message', self._onMessageCb) - - self.pipes.append(pipeline) - - def stopRecordingAudio( self ): - self.stop() + self.audiobin.set_state(gst.STATE_NULL) + self.pipeline.remove(self.audiobin) gobject.idle_add( self.stoppedRecordingAudio ) @@ -325,63 +287,96 @@ class Glive: tl[gst.TAG_TITLE] = Constants.istrBy % {"1":stringType, "2":str(Instance.nickName)} return tl + def blockedCb(self, x, y, z): + pass - def takePhoto(self): - if not(self.picExposureOpen): - self.picExposureOpen = True - self.el("videoTee").link(self.el("picQueue")) + def _takePhoto(self): + if self.picExposureOpen: + return + + self.picExposureOpen = True + pad = self.photobin.get_static_pad("sink") + pad.set_blocked_async(True, self.blockedCb, None) + self.pipeline.add(self.photobin) + self.photobin.set_state(gst.STATE_PLAYING) + self.pipeline.get_by_name("tee").link(self.photobin) + pad.set_blocked_async(False, self.blockedCb, None) + def takePhoto(self): + self.photoMode = self.PHOTO_MODE_PHOTO + self._takePhoto() def copyPic(self, fsink, buffer, pad, user_data=None): - if (self.picExposureOpen): + if not self.picExposureOpen: + return - self.picExposureOpen = False - pic = gtk.gdk.pixbuf_loader_new_with_mime_type("image/jpeg") - pic.write( buffer ) - pic.close() - pixBuf = pic.get_pixbuf() - del pic + pad = self.photobin.get_static_pad("sink") + pad.set_blocked_async(True, self.blockedCb, None) + self.pipeline.get_by_name("tee").unlink(self.photobin) + self.pipeline.remove(self.photobin) + pad.set_blocked_async(False, self.blockedCb, None) + + self.picExposureOpen = False + pic = gtk.gdk.pixbuf_loader_new_with_mime_type("image/jpeg") + pic.write( buffer ) + pic.close() + pixBuf = pic.get_pixbuf() + del pic - self.el("videoTee").unlink(self.el("picQueue")) - self.savePhoto( pixBuf ) + self.savePhoto( pixBuf ) def savePhoto(self, pixbuf): - if (self._PIPETYPE == self.PIPETYPE_AUDIO_RECORD): + if self.photoMode == self.PHOTO_MODE_AUDIO: self.audioPixbuf = pixbuf else: self.ca.m.savePhoto(pixbuf) def startRecordingVideo(self): - self.pipe().set_state(gst.STATE_READY) - self.record = True self.audio = True - if (self.record): - self.el("videoTee").link(self.el("movieQueue")) - - if (self.audio): - self.el("audioTee").link(self.el("audioWavenc")) - - self.pipe().set_state(gst.STATE_PLAYING) + # It would be nicer to connect the video/audio-recording elements + # without stopping the pipeline. However, that seems to cause a + # very long delay at the start of the video recording where the first + # frame is 'frozen' for several seconds. MikeS from #gstreamer + # suggested that the videorate element might not be receiving a + # "new segment" signal soon enough. + # + # Stopping the pipeline while we reshuffle neatly works around this + # with minimal user experience impact. + self.pipeline.set_state(gst.STATE_NULL) + self.pipeline.add(self.videobin) + self.pipeline.get_by_name("tee").link(self.videobin) + self.pipeline.add(self.audiobin) + self.pipeline.set_state(gst.STATE_PLAYING) def startRecordingAudio(self): self.audioPixbuf = None - self.pipe().set_state(gst.STATE_READY) - self.takePhoto() + self.photoMode = self.PHOTO_MODE_AUDIO + self._takePhoto() self.record = True - if (self.record): - self.el("audioQueue").link(self.el("audioAudioconvert")) - - self.pipe().set_state(gst.STATE_PLAYING) - + self.pipeline.add(self.audiobin) + self.audiobin.set_state(gst.STATE_PLAYING) def stopRecordingVideo(self): - self.stop() + # Similarly to as when we start recording, we also stop the pipeline + # while we are adjusting the pipeline to stop recording. If we do + # it on-the-fly, the following video live feed to the screen becomes + # several seconds delayed. Weird! + self._eos_cb = self.stopRecordingVideoEOS + self.pipeline.get_by_name('camsrc').send_event(gst.event_new_eos()) + self.audiobin.get_by_name('absrc').send_event(gst.event_new_eos()) + + def stopRecordingVideoEOS(self): + self.pipeline.set_state(gst.STATE_NULL) + self.pipeline.get_by_name("tee").unlink(self.videobin) + self.pipeline.remove(self.videobin) + self.pipeline.remove(self.audiobin) + self.pipeline.set_state(gst.STATE_PLAYING) gobject.idle_add( self.stoppedRecordingVideo ) @@ -503,19 +498,16 @@ class Glive: def _onMessageCb(self, bus, message): t = message.type if t == gst.MESSAGE_EOS: - #print("MESSAGE_EOS") - pass + if self._eos_cb: + cb = self._eos_cb + self._eos_cb = None + cb() elif t == gst.MESSAGE_ERROR: #todo: if we come out of suspend/resume with errors, then get us back up and running... #todo: handle "No space left on the resource.gstfilesink.c" #err, debug = message.parse_error() pass - - def isXv(self): - return self._PIPETYPE == self.PIPETYPE_XV_VIDEO_DISPLAY_RECORD - - def abandonMedia(self): self.stop() |