On Sun, Jun 15, 2014 at 12:54 PM, <meino.cra...@gmx.de> wrote: > Hi, > > After unsuccessfully trying vlc with a Logitech C920 HD Pro Webcam > (over 2 seconds delay between audio and video). I played around > with gstreamer and from bits and pieces from the web I build > this line: > > gst-launch-1.0 v4l2src device=/dev/video1 ! > video/x-h264,width=1920,height=1080,framerate=30/1 ! \ > h264parse ! muxout. alsasrc device="hw:3,0" ! queue ! audioconvert ! > lamemp3enc ! \ > muxout. matroskamux name=muxout streamable=true ! filesink > location=c920.mp4 > > which records a Full HD video with audio to my harddisc. The delay is > minimal and the sync between audio and video is good. > > But there is one disadvantage: > I cannot see what I am recording and I cannot watch the webcams stream > before I fire up the script because otherwise the device would be "already > in use" (I dont like scripts, which simply kill other applications when > called). > > Any ideas or hints how to manage that?
Use the tee element. I'm in a hurry, so I cannot test a pipeline right now, but I will try later. Meanwhile, just try to put a queue element after each path of the tee. gst-inspect-1.0 tee Regards. -- Canek Peláez Valdés Profesor de asignatura, Facultad de Ciencias Universidad Nacional Autónoma de México
