[FFmpeg-devel] [PATCH] libavcodec/h264pred: Remove pred8x8_horizontal_8_mmxext

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Sat Mar 2 23:20:41 EET 2024


Kieran Kunhya:
> $subj
> 
> Old:
> pred8x8_horizontal_8_c: 6.8
> pred8x8_horizontal_8_mmxext: 8.6
> pred8x8_horizontal_8_ssse3: 4.8
> 
> New:
> pred8x8_horizontal_8_c: 9.2
> pred8x8_horizontal_8_sse2: 12.2
> pred8x8_horizontal_8_ssse3: 4.9
> 

You do realize that the SSE2 version is worse than the mmxext version?
In fact, worse than the C version. Given that both the mmxext and sse2
versions are worse than C, there is no point in having the mmxext one at
all and no need for an SSE2 replacement.

- Andreas



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