[FFmpeg-devel] [PATCH 4/5] x86/opusdsp: implement FMA3 accelerated postfilter and deemphasis
Carl Eugen Hoyos
ceffmpeg at gmail.com
Sat Mar 30 00:35:40 EET 2019
2019-03-16 17:33 GMT+01:00, Lynne <dev at lynne.ee>:
> 58893 decicycles in deemphasis_c, 130548 runs, 524 skips
> 9475 decicycles in deemphasis_fma3, 130686 runs, 386 skips -> 6.21x
> speedup
>
> 24866 decicycles in postfilter_c, 65386 runs, 150 skips
> 5268 decicycles in postfilter_fma3, 65505 runs, 31 skips -> 4.72x
> speedup
>
> Total decoder speedup: ~14%
I can reproduce approximately half of this speedup and
will push over the weekend if there are no objections.
Carl Eugen
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