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

Måns Rullgård mru
Wed Sep 14 17:26:45 CEST 2005

Guillaume POIRIER said:

> If your CPU is too slow, too bad for you. H.264 is a very hungry
> codec. You can, however, disable some "eye candy" routines at decode
> time like the inloop filter or things like that. MPlayer allows you to
> control this with the option "-lavdopts" if I'm not mistaken (read the
> man page).

Disabling the loop filter is not a good idea.  The encoder uses filtered
pictures for prediction.  That's why it's called inloop filter.  By disabling
it during decoding, you'd be using incorrect reference data for predicted
blocks, which might get ugly.

M?ns Rullg?rd
mru at inprovide.com

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