[XviD-devel] possible qpel direct chroma MV rounding bug
Pascal Massimino
skal at planet-d.net
Wed Dec 21 07:15:07 CET 2005
Hi Michael!
On Tue, 2005-12-20 at 05:44, Michael Niedermayer wrote:
> Hi
>
> after some heated flam .. ehh i mean disscussion about libavcodec ability
> to decode xvid encoded files binary identically to xvid i found some
> differences, when using qpel + b frames, one of these is caused by the
> following code in xvid, which doesnt seem to match the mpeg4 spec but
> its 5oclock in the morning so please forgive me if iam wrong
Indeed, i think you're perfectly right (even at 5am;).
The code doesn't follow the spec. Now, even if the fix
is trivial, we'll have to think of something for the
backward compatibility...
later!
Skal
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