[Ffmpeg-devel] MMX/MMX2 and SSE optimizations for H.264 decoding

Erik Slagter erik
Fri Sep 23 13:05:46 CEST 2005

On Thu, 2005-09-22 at 15:39 -0400, Rich Felker wrote:
> > idct is not so important (iirc 3% total speedup when I mmxed it).
> > qpel_4 matters only on videos that use 4x4 motion partitions.
> > qpel_8 and loop_filter are important.
> IMO loop filter is irrelevant because everyone who cares about
> performance disables it. :)

Maybe everyone who cares about quality enables it.
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