[FFmpeg-devel] [PATCH] lavc/aarch64: new optimization for 8-bit hevc_pel_uni_w_pixels, qpel_uni_w_h, qpel_uni_w_v, qpel_uni_w_hv and qpel_h

[Martin Storsjö]

Hi,

On Sat, 27 May 2023, myais wrote:

> I saw your new opinions. Do you mean that the code of my current patch 
> should be guard as follows?
>
> C code：
>
> /if (have_i8mm(cpu_flags)) {//
> //}/
>
> /asm code :/
>
> /#if HAVE_I8MM/
>
> /#endif/

Yes

> I mean my current code base does not have those definitions, should I 
> implement them directly as if they already exist?

I suggest you apply my patches from the patchset I pointed you to, 
https://patchwork.ffmpeg.org/project/ffmpeg/list/?series=9009 - or from 
the start of the branch on github I pointed you to. It's likely that the 
patches will change a little before they're accepted, but I believe the 
main interface towards your code, "#if HAVE_I8MM" and "if 
(have_i8mm(cpu_flags))" will remain as such.

// Martin