[XviD-devel] Invalid stuffing bits and divx 5.0.3 qpel

Michael Niedermayer michaelni at gmx.at
Tue Mar 18 22:31:43 CET 2003


Hi

On Tuesday 18 March 2003 20:39, Michael Niedermayer wrote:
> Hi
>
> On Tuesday 18 March 2003 19:59, b0b0l0l0 at free.fr wrote:
> > En réponse à Christoph Lampert <chl at math.uni-bonn.de>:
>
> [...]
>
> > > At the end of VOP, BitstreamPadAlways() is required, if I remember
> > > correctly.
> >
> > You're right.
> >
> > By the way, I've also noticed some problems with divx pro 5.0.3 qpel. The
> > bitstream generated by divx with qpel enabled produces some chroma
> > glitches once decoded with xvid or other mpeg4 codec (3ivx, momusys,
> > etc). According to their changelog, they are supposed to comply with
> > 14496-2 DCOR1 (N4740) but I can't manage to decode their stream with any
> > decoders. Have you any
>
> ffdshow/ffmpeg/mplayer should decode it correctly, if not then upload a
> sample file to ftp://mplayerhq.hu & tell me that u did

btw, IIRC its some chroma MV rounding bug in divx 503 which causes this

[...]

Michael


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