[FFmpeg-devel] [PATCH] sws/aarch64: add {nv12, nv21, yuv420p, yuv422p}_to_{argb, rgba, abgr, rgba}_neon

[James Almer]

On 2/18/2016 10:42 AM, Clément Bœsch wrote:
> On Thu, Feb 18, 2016 at 02:40:06PM +0100, Clément Bœsch wrote:
>> On Thu, Feb 18, 2016 at 01:00:10PM +0000, Carl Eugen Hoyos wrote:
>>> Clément Bœsch <u <at> pkh.me> writes:
>>>
>>>> It's not tested on real hardware (qemu only), so I have 
>>>> no idea about performance.
>>>
>>> I can test this on real hardware if you can provide 
>>> (exact) command lines.
>>>
>>
>> for ifmt in nv12 nv21 yuv420p yuv422p; do
>>     for ofmt in argb rgba abgr bgra; do
>>         ./ffmpeg -f lavfi -i testsrc2=d=10 -vf format=$ifmt,format=$ofmt -f null -
>>     done
>> done
> 
> This will unfortunately involve more converts (testsrc fmt -> ifmt) so it
> won't really give you much hint. You probably want to test with sth like
> av_gettime() before and after the
> ff_##ifmt##_to_##ofmt##_neon_##precision() calls in
> libswscale/aarch64/swscale_unscaled.c

The START_TIMER and STOP_TIMER() macros are made specifically for this scenario.

> 
> 
> 
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