[Theora-dev] theora MMX decoder

Jens Arm Jens.Arm
Tue Aug 3 06:39:16 PDT 2004

> now someone has to convert this to gcc inline assambler. :-/
> and its decoding only for now. after i found out that,
> i did recompile libtheora with CFLAGS="-march=pentium3 -O3"
> and could see a difference encoding ~ 48 seconds of
> video (352x288) on my P3 1,2GHz using ffmpeg2theora.
> libtheora without extra flags
> real    2m0.800s
> user    1m48.569s
> sys     0m0.195s
> libtheora compiled with CFLAGS="-march=pentium3 -O3"
> real    1m42.825s
> user    1m33.208s
> sys     0m0.175s

A long time ago someone posted here mmx code for both encoder and decoder.

Does anyone know if this source can run in the new theora?
Or has the author ported it to the new source of theora?


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