mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
50e672bc54
./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags fast_bilinear \
-s 1200x1440 -f null -vframes 100 -pix_fmt $i -nostats \
-cpuflags 0 -v error -
32-bit mul, power8 only.
1.8-2.3x speedup:
rgb24
18192 UNITS in yuv2packed1, 32767 runs, 1 skips
9983 UNITS in yuv2packed1, 32760 runs, 8 skips
bgr24
18665 UNITS in yuv2packed1, 32766 runs, 2 skips
9925 UNITS in yuv2packed1, 32763 runs, 5 skips
rgba
20239 UNITS in yuv2packed1, 32767 runs, 1 skips
8794 UNITS in yuv2packed1, 32759 runs, 9 skips
bgra
20354 UNITS in yuv2packed1, 32768 runs, 0 skips
8770 UNITS in yuv2packed1, 32761 runs, 7 skips
argb
20185 UNITS in yuv2packed1, 32768 runs, 0 skips
8761 UNITS in yuv2packed1, 32761 runs, 7 skips
bgra
20360 UNITS in yuv2packed1, 32766 runs, 2 skips
8759 UNITS in yuv2packed1, 32764 runs, 4 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.
|
||
|---|---|---|
| .. | ||
| aarch64 | ||
| arm | ||
| ppc | ||
| tests | ||
| x86 | ||
| alphablend.c | ||
| bayer_template.c | ||
| gamma.c | ||
| hscale_fast_bilinear.c | ||
| hscale.c | ||
| input.c | ||
| libswscale.v | ||
| log2_tab.c | ||
| Makefile | ||
| options.c | ||
| output.c | ||
| rgb2rgb_template.c | ||
| rgb2rgb.c | ||
| rgb2rgb.h | ||
| slice.c | ||
| swscale_internal.h | ||
| swscale_unscaled.c | ||
| swscale.c | ||
| swscale.h | ||
| swscaleres.rc | ||
| utils.c | ||
| version.h | ||
| vscale.c | ||
| yuv2rgb.c | ||