[x264-devel] [patch] quant_4x4 and quant_8x8 mmx versions

[Alexander Izvorski]

Hello,

Here is a patch with mmxext versions of quant_4x4 and quant_8x8.  The
subroutines themselves are ~4 times faster, resulting in a noticeable
overall speedup, up to 15% depending on compression options used. 
Also attached is an excerpt from a profiling run (before and after).

Regards,
-Alex Izvorski
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