[FFmpeg-devel] [PATCH] Add check for Athlon64 and similar AMD processors with slow SSE2.

Jason Garrett-Glaser jason
Thu Feb 3 07:58:38 CET 2011

On Wed, Feb 2, 2011 at 3:26 PM, Justin Ruggles <justin.ruggles at gmail.com> wrote:
> ---
> This was ported from x264 so we need permission to relicense from
> Loren, Jason, or whoever added this particular check in x264.

That's one line of code, it's too trivial to matter.

But keep in mind that SSE2SLOW seems to mean something different in
ffmpeg.  It's already used for the case of Core 1, where SSE2 is
ALMOST ALWAYS slower than MMX.  But on Athlon 64, it's mostly faster,
just slower in some cases.


More information about the ffmpeg-devel mailing list