[FFmpeg-devel] [PATCH] A rather simple H.264 speed optimization
Mon Jul 28 17:53:27 CEST 2008
> What does gcc do with this on 32-bit platforms. I've often seen it do
> some rather horrid things with 64-bit types there.
h264.c already uses 64-bit write combining in many many places; I'm
just extending it.
x264 uses it too, and I have never seen GCC pessimize it. GCC
pessimizes 64-bit *arithmetic ops*, not copies.
More information about the ffmpeg-devel