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Fix h264_loop_filter_strength_mmx2() so it works with b frames. 

Originally committed as revision 21327 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-01-19 16:40:36 +00:00
parent f28cc5771f
commit 9ac4548ff7
1 changed files with 34 additions and 0 deletions
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34
libavcodec/x86/h264dsp_mmx.c
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@ -850,6 +850,40 @@ static void h264_loop_filter_strength_mmx2( int16_t bS[2][4][4], uint8_t nnz[40]
"m"(mv[l][b_idx+d_idx+2][0])
);
}
if(bidir==1){
__asm__ volatile("pxor %%mm3, %%mm3 \n\t":);
for( l = bidir; l >= 0; l-- ) {
__asm__ volatile(
"movd %0, %%mm1 \n\t"
"punpckldq %1, %%mm1 \n\t"
"punpckldq %%mm1, %%mm2 \n\t"
"pcmpeqb %%mm2, %%mm1 \n\t"
"paddb %%mm6, %%mm1 \n\t"
"punpckhbw %%mm7, %%mm1 \n\t" // ref[b] != ref[bn]
"por %%mm1, %%mm3 \n\t"
"movq %2, %%mm1 \n\t"
"movq %3, %%mm2 \n\t"
"psubw %4, %%mm1 \n\t"
"psubw %5, %%mm2 \n\t"
"packsswb %%mm2, %%mm1 \n\t"
"paddb %%mm5, %%mm1 \n\t"
"pminub %%mm4, %%mm1 \n\t"
"pcmpeqb %%mm4, %%mm1 \n\t" // abs(mv[b] - mv[bn]) >= limit
"por %%mm1, %%mm3 \n\t"
::"m"(ref[l][b_idx]),
"m"(ref[1-l][b_idx+d_idx]),
"m"(mv[l][b_idx][0]),
"m"(mv[l][b_idx+2][0]),
"m"(mv[1-l][b_idx+d_idx][0]),
"m"(mv[1-l][b_idx+d_idx+2][0])
);
}
__asm__ volatile(
"pcmpeqw %%mm7, %%mm3 \n\t"
"psubusw %%mm3, %%mm0 \n\t"
:);
}
}
__asm__ volatile(
"movd %0, %%mm1 \n\t"