[MPlayer-users] No audio in video capture

[D Richard Felker III]

On Mon, May 17, 2004 at 09:37:06PM +0200, Fabio S. wrote:
> > >> mencoder -oac mp3lame -lameopts cbr:br=224 -ovc lavc -lavcopts
> > >> vcodec=mpeg4:vhq=3:vbitrate=1200 -tv driver=v4l2:width=382:height=288
> > >> -o test.avi tv://
> > >Question: why an audio bitrate of 224?
> >
> > Good question.  For that matter, why the oddball width '382' and the
> > nonsensical lavc option 'vhq=3'? ;)
> 
> First of all, let me excuse with everybody if some of my posts got posted
> twice, while others (that you never saw...) never got posted. It was a
> failure partly of my mail server, partly of my settings. Now everything
> should work as expected, I whish... ;-)
> 
> As to the width, it was just an error in copying the command: actual width
> is 384=288*4/3 which should make more sense!
> The audio bitrate is just a try. I am experimenting and I want to find
> the best settings for capturing. In fact, I saw that changing audio br
> doesn't change audio quality that much. So, maybe I can use a more
> standard one (like 128?)
> I have read a few moments ago someone suggesting to lower the igain value:
> mine is 100, so maybe this should correct my bad quality audio.
> For vhq, I read from the manual:
> vhq=<0-4> ...
> and I interpreted that 0 (the default) is lower quality, so in my mind 3
> should be better quality. Am I wrong?

Apparently you looked at the section for xvid, not libavcodec.

Rich