[FFmpeg-devel] [PATCH V8 2/2] libswscale/x86/yuv2rgb: add ssse3 version

Paul B Mahol onemda at gmail.com
Mon Feb 10 10:56:06 EET 2020


Does this pass fate?
If yes i will apply.

On 2/10/20, Fu, Ting <ting.fu at intel.com> wrote:
>
>
>> -----Original Message-----
>> From: ffmpeg-devel <ffmpeg-devel-bounces at ffmpeg.org> On Behalf Of Ting
>> Fu
>> Sent: Sunday, January 19, 2020 11:51 AM
>> To: ffmpeg-devel at ffmpeg.org
>> Subject: [FFmpeg-devel] [PATCH V8 2/2] libswscale/x86/yuv2rgb: add ssse3
>> version
>>
>> Tested using this command:
>> /ffmpeg -pix_fmt yuv420p -s 1920*1080 -i ArashRawYuv420.yuv \ -vcodec
>> rawvideo -s 1920*1080 -pix_fmt rgb24 -f null /dev/null
>>
>> The fps increase from 389 to 640 on Intel(R) Core(TM) i7-8700K CPU @
>> 3.70GHz
>>
>> Signed-off-by: Ting Fu <ting.fu at intel.com>
>> ---
>>  libswscale/x86/yuv2rgb.c     |  38 +++++++++
>>  libswscale/x86/yuv_2_rgb.asm | 145 +++++++++++++++++++++++++++++++--
>> --
>>
> [...]
>> +
>> +INIT_XMM ssse3
>> +yuv2rgb_fn yuv,  rgb, 24
>> +yuv2rgb_fn yuv,  bgr, 24
>> +yuv2rgb_fn yuv,  rgb, 32
>> +yuv2rgb_fn yuv,  bgr, 32
>> +yuv2rgb_fn yuva, rgb, 32
>> +yuv2rgb_fn yuva, bgr, 32
>> +yuv2rgb_fn yuv,  rgb, 15
>> +yuv2rgb_fn yuv,  rgb, 16
>> --
>> 2.17.1
>
> Hi all,
>
> Any further comment for this single patch?
> This version has only changed a little compared with V4 (reviewed by Paul),
> which is that the check of SIMD has been moved from the wrapper function (in
> libswscale/x86/yuv2rgb_template.c) to format check (in
> libswscale/x86/yuv2rgb.c).
> While assembly code is exactly same with the V4.
>
> Thank you,
> Ting Fu.
>
>>
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