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release/0.10
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release/0.9
release/1.0
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release/5.0
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release/6.0
release/6.1
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N
ffmpeg-0.6.3
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${ noResults }
5 Commits (b6b33f7edd949a013ee137afa6c6b5e340ad34cc)
| Author | SHA1 | Message | Date |
|---|---|---|---|
Andreas Rheinhardt
|
ea043cc53e |
avutil/x86/pixelutils: Remove obsolete MMX(EXT) functions
x64 always has MMX, MMXEXT, SSE and SSE2 and this means that some functions for MMX, MMXEXT, SSE and 3dnow are always overridden by other functions (unless one e.g. explicitly disables SSE2). So given that the only systems which benefit from the 8x8 MMX (overridden by MMXEXT) or the 16x16 MMXEXT (overridden by SSE2) are truely ancient 32bit x86s they are removed. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> |
2 years ago |
James Almer
|
481741ece0 |
x86/pixelutils: don't use the AVX2 functions on CPUs known to be slow with them
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 |
Peter Cordes
|
9e5687adf2 |
pixelutils: Comment on (lack of) sad_8x8_sse2
Signed-off-by: Peter Cordes <peter@cordes.ca> |
10 years ago |
Clément Bœsch
|
28a2107a8d |
avutil: add pixelutils API
|
10 years ago |