[Ffmpeg-devel] [BUG] H.264 + AltiVec == heavy artefacts
Sat Oct 1 16:34:24 CEST 2005
On Sat, Oct 01, 2005 at 09:33:18AM +0200, Romain Dolbeau wrote:
> Diego Biurrun <diego at biurrun.de> wrote:
> > If I comment out
> > dspfunc(put_h264_qpel, 0, 16);
> > dspfunc(avg_h264_qpel, 0, 16);
> > in libavcodec/dsputil_h264_altivec.c lines 255 and 256 the artifacts go
> > away.
> Unfortunately, this is not very specific ; these two are macros that
> each enable half the motion compensation functions...
OK, I'll try to narrow it down a bit more.
> Is there a short sample available somewhere that exhibit the problem ? I
> a bit buried in work ATM, but I'll try my best to identify the problem
> newt week if I can spare the time.
Any H.264 sample will exhibit the problem and be completely unwatchable.
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