[x265] [arm64] port ssim_4x4x2_core

[chen]

Hi,


Code looks good.
The only comment is UADALP is slower, we can adjust order of sum to avoid it.




Regards,
Min Chen




 2021-08-07 02:01:13，"Pop, Sebastian" <spop at amazon.com> 

Hi,

the attached patch ports to arm64 the following kernel:

 

ssim_4x4x2_core  30.69x   13.39           410.85

 

Ok to commit?

 

Thanks,

Sebastian

 
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