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avcodec/mips: Restore the initialization sequence of MSA and MMI in ff_h264chroma_init_mips. 

The MSA optimization has been refined in commit 93218c2 and ce0a52e.
It is better than MMI version now.
Speed of decoding H264: 4.83x ==> 4.89x (tested on 3A4000).

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Shiyou Yin 2021-04-12 23:37:01 +08:00 committed by Michael Niedermayer
parent eb390d7f9d
commit 56c57fe68a
1 changed files with 9 additions and 10 deletions
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19
libavcodec/mips/h264chroma_init_mips.c
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@ -29,7 +29,15 @@ av_cold void ff_h264chroma_init_mips(H264ChromaContext *c, int bit_depth)
int cpu_flags = av_get_cpu_flags();
int high_bit_depth = bit_depth > 8;
/* MMI apears to be faster than MSA here */
if (have_mmi(cpu_flags)) {
if (!high_bit_depth) {
c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_mmi;
c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_mmi;
c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_mmi;
c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_mmi;
}
}
if (have_msa(cpu_flags)) {
if (!high_bit_depth) {
c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_msa;
@ -41,13 +49,4 @@ av_cold void ff_h264chroma_init_mips(H264ChromaContext *c, int bit_depth)
c->avg_h264_chroma_pixels_tab[2] = ff_avg_h264_chroma_mc2_msa;
}
}
if (have_mmi(cpu_flags)) {
if (!high_bit_depth) {
c->put_h264_chroma_pixels_tab[0] = ff_put_h264_chroma_mc8_mmi;
c->avg_h264_chroma_pixels_tab[0] = ff_avg_h264_chroma_mc8_mmi;
c->put_h264_chroma_pixels_tab[1] = ff_put_h264_chroma_mc4_mmi;
c->avg_h264_chroma_pixels_tab[1] = ff_avg_h264_chroma_mc4_mmi;
}
}
}