Intel additional AVX optimizations #1439
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fhannebi
commented
Sep 30, 2025
fhannebi
commented
- vif_avx512.c : vif_statistic_8_avx512() optimized with new avx512 intrinsics code
- integer_motion.c and motion_avx*.c : new avx2 and avx512 optimized functions which replace the corresponding C functions.
- integer_adm.c and adm_avx*.c : new avx2 and avx512 optimized functions which replace the corresponding C functions.
- Possibility to have further speedups by activating code in adm_avx512.c by setting the macros CALC_ANGLE1 and CALC_ANGLE2 at compilation.
- All these modifications have passed the unittest test cases.
Collaborator
|
Do you have benchmarks to share? |
kylophone
reviewed
Oct 22, 2025
libvmaf/src/feature/integer_adm.c
Outdated
| adm_decouple(buf, w, h, buf_stride, adm_enhn_gain_limit); | ||
| #if HAVE_AVX512 | ||
| if (flags & VMAF_X86_CPU_FLAG_AVX512) | ||
| adm_decouple_avx512(buf, w, h, buf_stride, adm_enhn_gain_limit, div_lookup); |
Collaborator
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Here and elsewhere. Please check the CPU flags during init and set optimized path via function pointer.
Author
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This is done with a new version of integer_adm.c provided in the commit 91942c5
Author
|
In e6ae1d0 commit: Modified the way picture.h is included in motion_avx512.c and motion_avx2.c to avoid errors of path finding in some configurations; |
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