[FFmpeg-devel] [PATCH v2] avcodec/mips: [loongson] optimize memset in h264dsp.

Michael Niedermayer michael at niedermayer.cc
Fri Aug 31 14:52:33 EEST 2018

On Thu, Aug 30, 2018 at 08:40:56PM +0800, Shiyou Yin wrote:
> Optimized memset with mmi in following functions:
> 1. ff_h264_add_pixels4_8_mmi.
> 2. ff_h264_idct_add_8_mmi.
> 3. ff_h264_idct8_add_8_mmi.

> This optimization improved h264 decoding performance about 1fps(tested on loongson 3A3000).

1fps is ambigous. 
Consider if the speed was 2fps before and is 3fps now, its a huge speed gain
if it was 1000fps before and is 1001 now its a small gain
please be more precisse


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Good people do not need laws to tell them to act responsibly, while bad
people will find a way around the laws. -- Plato
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