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N
ffmpeg-0.6.3
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${ noResults }
7 Commits (05f9b3a0a570fcacbd38570f0860afdabc80a791)
| Author | SHA1 | Message | Date |
|---|---|---|---|
James Almer
|
d5b3077ecf |
x86/pixelutils: add missing preprocessor wrapper to the AVX2 functions
Should fix compilation with old yasm/nasm Signed-off-by: James Almer <jamrial@gmail.com> |
6 years ago |
Jun Zhao
|
d36b8394f4 |
avutil/pixelutils: sad_32x32 sse2/avx2 optimizations.
add ff_pixelutils_sad_32x32_sse2, ff_pixelutils_sad_{a,u}_32x32_sse2,
ff_pixelutils_sad_32x32_avx22, ff_pixelutils_sad_{a,u}_32x32_avx2
use perf record/report profiling, get instructions:u for avx2 sad_32x32:
72.05% pixelutils pixelutils [.] block_sad_32x32_c
18.50% pixelutils pixelutils [.] block_sad_16x16_c
4.78% pixelutils pixelutils [.] block_sad_8x8_c
2.69% pixelutils pixelutils [.] block_sad_4x4_c
0.89% pixelutils pixelutils [.] block_sad_2x2_c
0.16% pixelutils pixelutils [.] ff_pixelutils_sad_32x32_avx2
0.16% pixelutils pixelutils [.] ff_pixelutils_sad_u_32x32_avx2
0.12% pixelutils pixelutils [.] ff_pixelutils_sad_a_32x32_avx2
sse2 sad_32x32 instructions:u like:
71.86% pixelutils pixelutils [.] block_sad_32x32_c
18.42% pixelutils pixelutils [.] block_sad_16x16_c
4.81% pixelutils pixelutils [.] block_sad_8x8_c
2.68% pixelutils pixelutils [.] block_sad_4x4_c
0.88% pixelutils pixelutils [.] block_sad_2x2_c
0.29% pixelutils pixelutils [.] ff_pixelutils_sad_32x32_sse2
0.26% pixelutils pixelutils [.] ff_pixelutils_sad_u_32x32_sse2
0.23% pixelutils pixelutils [.] ff_pixelutils_sad_a_32x32_sse2
Signed-off-by: Jun Zhao <mypopydev@gmail.com>
|
6 years ago |
|
Jun Zhao
|
09628cb1b4 |
avutil/pixelutils: correct the function name in comments
Signed-off-by: Jun Zhao <mypopydev@gmail.com> |
6 years ago |
Henrik Gramner
|
f0b7882ceb |
x86inc: Drop SECTION_TEXT macro
The .text section is already 16-byte aligned by default on all supported platforms so `SECTION_TEXT` isn't any different from `SECTION .text`. |
9 years ago |
Clément Bœsch
|
554d819062 |
avutil/pixelutils: faster pixelutils_sad_16x16
501 to 439 decicycles.
See
|
10 years ago |
|
Clément Bœsch
|
45c7f3997e |
avutil/pixelutils: faster pixelutils_sad_[au]_16x16
~560 → ~500 decicycles This is following the comments from Michael in https://ffmpeg.org/pipermail/ffmpeg-devel/2014-August/160599.html Using 2 registers for accumulator didn't help. On the other hand, some re-ordering between the movs and psadbw allowed going ~538 to ~500. |
10 years ago |
|
Clément Bœsch
|
28a2107a8d |
avutil: add pixelutils API
|
10 years ago |