[vlc] vlc v4l streaming video / audio synchronization

Jan Dittmer jdittmer at ppp0.net
Thu Jul 1 22:30:48 CEST 2004


Hello,

I'm trying to use vlc to stream the picture from my v4l tv card (bt878) 
using the following command line:

vlc -vvv 
v4l:/dev/video0:norm=pal:frequency=196250:size=640x480:channel=0:adev=/dev/dsp:audio=0 
--sout 
'#transcode{vcodec=mp4v,acodec=mpga,vb=3000,ab=256,vt=800000,keyint=80,deinterlace}:std{access=http,mux=ts,url=192.168.1.34:8099}' 
--ttl 12

This far it's all working great. Playing from clients is also working, 
but audio and video are about quarter of a second out of sync which is 
pretty disturbing. I read in the online documentation about --desync, 
but my vlc 0.7.2 from debian doesn't know this option. Of course I could 
use mplayer on the clients and sync the stream on the client side, but 
this is sub-optimal.
Is there a way to synchronize spezify a audio delay for streaming?

Thanks,

Jan

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