[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


More information about the ffmpeg-devel mailing list