diff options
| author | Ronald S. Bultje <rsbultje@gmail.com> | 2010-09-14 13:36:26 +0000 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2010-09-14 13:36:26 +0000 |
| commit | 1d16a1cf99488f16492b1bb48e023f4da8377e07 (patch) | |
| tree | bbb29695e29d17f22118af56d4c511b286a08e11 /libavutil | |
| parent | 6ebf0bfc17253e29a226e888fb9b7b31574a2eed (diff) | |
Rename h264_idct_sse2.asm to h264_idct.asm; move inline IDCT asm from
h264dsp_mmx.c to h264_idct.asm (as yasm code). Because the loops are now
coded in asm instead of C, this is (depending on the function) up to 50%
faster for cases where gcc didn't do a great job at looping.
Since h264_idct_add8() is now faster than the manual loop setup in h264.c,
in-asm idct calling can now be enabled for chroma as well (see r16207). For
MMX, this is 5% faster. For SSE2 (which isn't done for chroma if h264.c does
the looping), this makes it up to 50% faster. Speed gain overall is ~0.5-1.0%.
Originally committed as revision 25119 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavutil')
0 files changed, 0 insertions, 0 deletions