[FFmpeg-devel] [PATCH] swscale/x86/input: add AVX2 optimized RGB24 to YUV functions

[Andreas Rheinhardt]

James Almer:
> On 6/4/2024 4:25 PM, Andreas Rheinhardt wrote:
>> James Almer:
>>> rgb24_to_uv_8_c: 39.3
>>> rgb24_to_uv_8_sse2: 14.3
>>> rgb24_to_uv_8_ssse3: 13.3
>>> rgb24_to_uv_8_avx: 12.8
>>> rgb24_to_uv_8_avx2: 14.3
>>
>> Worse than avx and ssse3
> 
> Can't be disabled for small sizes.
> 

Why can't this be disabled?

>>
>>> rgb24_to_uv_128_c: 582.8
>>> rgb24_to_uv_128_sse2: 127.3
>>> rgb24_to_uv_128_ssse3: 107.3
>>> rgb24_to_uv_128_avx: 111.3
>>
>> Worse than ssse3
> 
> I know, but it's not related to this patch.
> Same for all the comments below.