[FFmpeg-devel] [PATCH] avfilter/af_anlmdn: add AArch64 SIMD for compute_distance_ssd

[zhilizhao]

> On Jan 25, 2020, at 12:13 AM, Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:
> 
> Am Fr., 24. Jan. 2020 um 10:15 Uhr schrieb Zhao Zhili <quinkblack at foxmail.com <mailto:quinkblack at foxmail.com>>:
>> 
>> ./ffmpeg -threads 1  -f lavfi -t 60 -i anoisesrc -af 'anlmdn' -f null -benchmark -
>> 
>> Test results on Snapdragon 845:
>>    Before:
>>        size=N/A time=00:01:00.00 bitrate=N/A speed=11.2x
>>        video:0kB audio:5625kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
>>        bench: utime=5.320s stime=0.010s rtime=5.358s
>>        bench: maxrss=14172kB
>> 
>>    After:
>>        size=N/A time=00:01:00.00 bitrate=N/A speed=15.4x
>>        video:0kB audio:5625kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown
>>        bench: utime=3.870s stime=0.000s rtime=3.902s
>>        bench: maxrss=14036kB
> 
> In case anybody is curious:
> This is a higher speedup than the x86 asm optimization offers.
> 

Ping for review, thanks!

> Carl Eugen
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