[MPlayer-users] composite input a/v sync issue

[Reimar Döffinger]

On Thu, Nov 05, 2009 at 07:05:34AM +0100, Miroslav Rovis wrote:
> mencoder -fps 25 -ofps 25 -noskip -mc 0 -vf harddup,softskip tv:// -tv
> input=1:driver=v4l2:device=/dev/video0:normid=3:input=1:alsa:adevice=hw.0:audiorate=48000:amode=1:width=768:height=576
> -ovc lavc -lavcopts vcodec=mpeg4:autoaspect:vbitrate=8000 -oac mp3lame
> -srate 48000 -lameopts cbr:preset=standard -endpos 100  -o VHS155_`date
> +%H%M%S`.avi

While I do not know if it can even work without, -fps 25 tells
MPlayer/mencoder to assume that there are always exactly 25 frames per
second. If the capture card loses sync during the bad sections and does
not produce any frames that is of course not going to work out at all.