[FFmpeg-devel] [PATCH] move H264 mmx2 (bi)weight functions to yasm

Ronald S. Bultje rsbultje
Wed Sep 1 15:58:51 CEST 2010


moves h264 weight/biweight mmx functions to yasm, preceeded by svn cp
libavcodec/x86/h264_biweight{_sse2,}.asm, should be pretty obvious.
Code is pretty much identical to what gcc outputs except for one (8x4
or 4x8, I forgot which) where gcc introduces two jumps right alongside
each other (as in if y >= h break; jmp start_loop), and a few places
where it uses more registers than necessary. I'll do speed-tests later
but don't expect any significant changes.

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