[FFmpeg-devel] [PATCH 4/4] avfilter/vf_framerate: add SIMD functions for frame blending
Carl Eugen Hoyos
ceffmpeg at gmail.com
Thu Jan 18 11:30:21 EET 2018
2018-01-18 1:03 GMT+01:00 Marton Balint <cus at passwd.hu>:
> Blend function speedups on x86_64 Core i5 4460:
>
> ffmpeg -f lavfi -i allyuv -vf framerate=60:threads=1 -f null none
>
> C: 447548411 decicycles in Blend, 2048 runs, 0 skips
> SSSE3: 130020087 decicycles in Blend, 2048 runs, 0 skips
> AVX2: 128508221 decicycles in Blend, 2048 runs, 0 skips
>
> ffmpeg -f lavfi -i allyuv -vf format=yuv420p12,framerate=60:threads=1 -f null none
>
> C: 228932745 decicycles in Blend, 2048 runs, 0 skips
> SSE4: 123357781 decicycles in Blend, 2048 runs, 0 skips
> AVX2: 121215353 decicycles in Blend, 2048 runs, 0 skips
Is the avx2 version really useful?
Carl Eugen
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