[x265] arm64 neon asm optimizations

[chen]

Hi Gopi, thank you help review these patches. 

At 2020-08-27 00:42:11, "Gopi Satykrishna Akisetty" <gopi.satykrishna at multicorewareinc.com> wrote:

Hi Min,


On Thu, Aug 20, 2020 at 7:48 AM chen <chenm003 at 163.com> wrote:

Hi Damiano,


Thank your information.


I fast take a look, it is based on Intrinsic, the perforamance strong depends on compiler.
However, it is a good start point to improve our ARM64 performance.


Does there any x265 team member can work on it?
Yes, I will start going through the changes and can help in reviewing the patches.
I am also glad to help review during my unpaid leave that start at September  2020.


Regards,
Min Chen


At 2020-08-20 00:01:52, "Damiano Galassi" <galad87 at icloud.com> wrote:
>Hi, Apple contributed to the HandBrake project a x265 patch
>with a bunch of neon asm to improve x265 performance on Apple’s upcoming ARM Macs,
>but I don’t have the expertise or the time to review these changes, all I can do is send this patch to you.
>The code contributed by Apple is under MIT license and without any "copyright assertion on it”.
>
>The neon asm speeds up is almost 2x, so I hope someone will try to integrate it.
>The additions are viewable on https://github.com/HandBrake/HandBrake/commit/67a490a171764eafe8eb8afb72fa1dff763a3275
>
>Regards,
>Damiano Galassi
>_______________________________________________
>x265-devel mailing list
>x265-devel at videolan.org
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