[FFmpeg-devel] [PATCH]avfilter: add Intel IPP library based x86 optimized video scaling filter

[Lynne]

May 24, 2021, 14:21 by kierank at obe.tv:

> On Sun, 23 May 2021 at 13:31, Zhislina, Victoria <
> Victoria.Zhislina at intel.com> wrote:
>
>> From b01b4130d7301a289b3ad771eaeaf1ca2839045a Mon Sep 17 00:00:00 2001
>> From: Zhislina <Victoria.Zhislina at intel.com>
>> Date: Mon, 3 May 2021 21:53:54 +0300
>> Subject: [PATCH] avfilter: add Intel IPP library based x86 optimized video
>>  scaling filter.
>>
>> Uses vector instructions from SSE2 (default) up to AVX512 for the suitable
>> CPUs
>> and multithreading (slices) to provide multiple performance increase vs
>> libswscale.
>>
>
> As I understand it, IPP is not open source so this will need
> --enable-nonfree
>

I'd rather not support an external non-free library that does
the same as libavfilter only faster on one single platform
but rather see libavfilter's assembly and code improved.