diff options
| author | Lauri Kasanen <cand@gmx.com> | 2019-04-05 11:31:43 +0300 |
|---|---|---|
| committer | Lauri Kasanen <cand@gmx.com> | 2019-04-11 09:08:51 +0300 |
| commit | ce92ee4b4f3ef13aba551897f54d794bcba5dd62 (patch) | |
| tree | 6514b7b44cfc8b4ddeb3a63f0a1810f6d64fb59d /doc/devices.texi | |
| parent | 3fe37033b982efa3e76e6dec977dc5048597937b (diff) | |
| download | ffmpeg-ce92ee4b4f3ef13aba551897f54d794bcba5dd62.tar.gz | |
swscale/ppc: VSX-optimize non-full-chroma yuv2rgb_2
./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags fast_bilinear \
-s 1200x720 -f null -vframes 100 -pix_fmt $i -nostats \
-cpuflags 0 -v error -
32-bit mul, power8 only.
~2x speedup:
rgb24
24431 UNITS in yuv2packed2, 16384 runs, 0 skips
13783 UNITS in yuv2packed2, 16383 runs, 1 skips
bgr24
24396 UNITS in yuv2packed2, 16384 runs, 0 skips
14059 UNITS in yuv2packed2, 16384 runs, 0 skips
rgba
26815 UNITS in yuv2packed2, 16383 runs, 1 skips
12797 UNITS in yuv2packed2, 16383 runs, 1 skips
bgra
27060 UNITS in yuv2packed2, 16384 runs, 0 skips
13138 UNITS in yuv2packed2, 16384 runs, 0 skips
argb
26998 UNITS in yuv2packed2, 16384 runs, 0 skips
12728 UNITS in yuv2packed2, 16381 runs, 3 skips
bgra
26651 UNITS in yuv2packed2, 16384 runs, 0 skips
13124 UNITS in yuv2packed2, 16384 runs, 0 skips
This is a low speedup, but the x86 mmx version also gets only ~2x. The mmx version
is also heavily inaccurate, while the vsx version has high accuracy.
Diffstat (limited to 'doc/devices.texi')
0 files changed, 0 insertions, 0 deletions