[MPlayer-users] Re: [-] TV-recording with mencoder, "video-buffer full"

D Richard Felker III dalias at aerifal.cx
Mon Feb 28 17:01:00 CET 2005

On Mon, Feb 28, 2005 at 12:23:50PM +0100, Matthias Wieser wrote:
> > mencoder tv:// \
> >  -tv driver=v4l2:width=768:height=576:amode=1:adevice=/dev/dsp1 -oac \
> >  mp3lame -lameopts cbr:br=96 -ovc lavc -lavcopts \
> >  vcodec=mpeg4:vbitrate=2000 -vf crop=698:558:12:2,scale=640:480,pp=lb /
> >  -endpos 1:00:00 -o somefile.avi
> >
> >
> > btw if anything about this is stupid, please tell me.
> As Richard already said, don't scale befor deinterlacing.
> Additionally, my card supports 720x576 which should give the same quality
> at less work for the CPU. Maybe your card also supports 720x576.
> You could try pp=fd instead of pp=lb. The former should give a
> sharper image quality.

Bad suggestion, IMO. If you're going to use pp=fd, just capture a
single field (height=288) instead. The quality will be comparable
either way, since pp=fd essentially throws away one whole field (but
also adds edge ghosting from the other field -- very ugly!) and
single-field capture will use a LOT less cpu time


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