[FFmpeg-devel] [PATCH] VP8 MMX optimizations (MC and IDCT dc_add)

Ronald S. Bultje rsbultje
Wed Jun 23 19:41:56 CEST 2010


On Wed, Jun 23, 2010 at 3:38 AM, Jason Garrett-Glaser
<darkshikari at gmail.com> wrote:
> There are some... issues... with the current code that prevent commit.
> ?I will be bringing these up with Ronald soon ;)

I can't test the SSSE/SSE4 ones because my cpu is old. Attached is a
MMX-only version with Jason's changes for v4/v6 and dc_add, they're
clearly faster (e.g. dc_add/mmx is +/- 90 cycles faster, v6 is 220
cycles faster and v4 is 50 cycles faster).

-------------- next part --------------
A non-text attachment was scrubbed...
Name: vp8_mmx.patch
Type: application/octet-stream
Size: 21601 bytes
Desc: not available
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20100623/f5ede42b/attachment.obj>

More information about the ffmpeg-devel mailing list