[Mplayer-advusers] ffmpeg12 error error concealment problem

[Michael Niedermayer]

Hi

On Monday 16 February 2004 05:26, Zoltan Hidvegi wrote:
> Michael Niedermayer wrote:
> > On Sunday 15 February 2004 21:50, Zoltan Hidvegi wrote:
> > > I've uploaded the file ffmpeg12-bug.ts to mplayerhq incoming.  Play it
> > > with
> > >
> > > mplayer ffmpeg12-bug.ts -tsprog 2 -vop field,crop=1408:1056:256:16
> > > -nosound -vfm ffmpeg
> > >
> > > and watch the ugliness.  Now try the same with -vfm libmpeg2, it looks
> > > much better.
> >
> > remove the crop filter, or add -noslices (or fix slices)
> > btw, u also should set -lavdopts er=4
>
> Thanks, I did not know that slices are broken.  But even with
> -noslices, it does not look as good as libmpeg2.  It seems that the
> same frame is repeated a few times before proceeding.  And there seems
cvs up libavcodec
i think i fixed that yesterday, the problem was that the sequence header was 
damaged but libavcodec didnt notice, but then failed to decode the following 
sequence extension header so it practically switched to mpeg1 which confused 
it somewhat as the following frames are mpeg2

[...]
-- 
Michael
level[i]= get_vlc(); i+=get_vlc();		(violates patent EP0266049)
median(mv[y-1][x], mv[y][x-1], mv[y+1][x+1]);	(violates patent #5,905,535)
buf[i]= qp - buf[i-1];				(violates patent #?)
for more examples, see http://mplayerhq.hu/~michael/patent.html
stop it, see http://petition.eurolinux.org & http://petition.ffii.org/eubsa/en