[MPlayer-users] Loss-less AVI

Michael Niedermayer michaelni at gmx.at
Fri Oct 17 23:43:48 CEST 2003


Hi

On Friday 17 October 2003 05:02, D Richard Felker III wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
>
> On Thu, Oct 16, 2003 at 07:47:00PM -0400, Charles Philip Chan wrote:
> > [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> >
> > On Thu, 16 Oct 2003 20:33:33 -0300
> >
> > Alvin Beach <alvinbeach at deepvision.ca> wrote:
> > > I have tried to use the huffyuv encoder but for some reason I can't
> > > get it to work.
> >
> > Have you tried "-ovc lavc -lavcopts vcodec=huffyuv"? It worked for me
> > last time I tried it.
>
> huffyuv cannot be lossless, since the original video is rgb, and
> colorspace conversion is not one-to-one. Not to mention the 4:2:2 or
> 4:2:0 downsampling...
the lossless jpeg codec in libavcodec supports rgb encoding
libavcodecs huffyuv codec supports only rgb decoding not encoding

[...]
-- 
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



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