Hi, We had sync issues a while back. Adding the videorate flag seems to have resulted in better output.
Our config settings are something like this when using webcams. Pity you did not mention what camera you are using( or I might just have missed that somehow ). #Create the screen capture capture.device.Presentation.src=/dev/video1 capture.device.Presentation.outputfile=Presentation.avi capture.device.Presentation.flavor=presentation/source capture.device.Presentation.buffer.bytes=536870912 capture.device.Presentation.type=EPIPHAN_VGA2USB #Create the presenter capture capture.device.Presenter.customProducer=v4l2src device=/dev/video0 ! image/jpeg,width=1280,height=720,framerate=15/1 ! queue ! jpegdec ! videorate ! ffmpegcolorspace capture.device.Presenter.flavor=presenter/source capture.device.Presenter.outputfile=Presenter.avi capture.device.Presenter.src=/dev/video0 capture.device.Presenter.type=CUSTOM_VIDEO_SRC #Create the audio capture capture.device.Audio.codec=flacenc capture.device.Audio.flavor=presenter/source capture.device.Audio.outputfile=audio.flac capture.device.Audio.src=hw:1,0 capture.device.Audio.type=ALSASRC capture.device.names=Audio,Presentation,Presenter Regards, Edmore Moyo CET UCT >>> Oriol Pellicer i Sabrià<[email protected]> 11/28/2012 2:09 PM >>> Hello, I'm having some problems syncing audio/video/vga. It seems that the video is fastest than the audio and vga presentation. The configuration in the CA is the following: [...] #Create the audio capture capture.device.PULSE.type=PULSESRC capture.device.PULSE.src=hw:0 capture.device.PULSE.flavor=presenter/source capture.device.PULSE.outputfile=PULSE.mp2 capture.device.PULSE.buffer.bytes=536870912 capture.device.PULSE.codec=lame capture.device.PULSE.codec.bitrate=192 #Create the presenter capture capture.device.CAMERA.type=CUSTOM_VIDEO_SRC capture.device.CAMERA.customProducer=decklinksrc input=HDMI input-mode=4 ! queue ! ffmpegcolorspace ! queue capture.device.CAMERA.flavor=presenter/source capture.device.CAMERA.outputfile=digicam.mpg capture.device.CAMERA.buffer.bytes=536870912 capture.device.CAMERA.framerate=15 #Create the screen capture capture.device.Epiphan_VGA2USB.src=/dev/video0 capture.device.Epiphan_VGA2USB.outputfile=Epiphan_VGA2USB.mpg capture.device.Epiphan_VGA2USB.flavor=presentation/source capture.device.Epiphan_VGA2USB.buffer.bytes=536870912 capture.device.Epiphan_VGA2USB.type=EPIPHAN_VGA2USB capture.device.Epiphan_VGA2USB.framerate=5 capture.device.names=CAMERA,Epiphan_VGA2USB,PULSE [END] My CA hardware: The PC is a Intel Core 2 Duo @ 2.13GHz with 3 Gb of ram and an integrated audio card (tested with alsa and pulseaudio with same results): 80:01.0 Audio device: VIA Technologies, Inc. VT1708/A [Azalia HDAC] (VIA High Definition Audio Controller) (rev 10) On recording, the AC CPU is idle at 0%, I attach a screenshot. Can I moderate the CPU consumption in some way? I've tried to limit the framerates with no luck. Greetings, Oriol. ### UNIVERSITY OF CAPE TOWN This e-mail is subject to the UCT ICT policies and e-mail disclaimer published on our website at http://www.uct.ac.za/about/policies/emaildisclaimer/ or obtainable from +27 21 650 9111. This e-mail is intended only for the person(s) to whom it is addressed. If the e-mail has reached you in error, please notify the author. If you are not the intended recipient of the e-mail you may not use, disclose, copy, redirect or print the content. If this e-mail is not related to the business of UCT it is sent by the sender in the sender's individual capacity. ###
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