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Store data in direct_table interleaved.

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seems 20cpu cycles faster

Originally committed as revision 22055 to svn://svn.ffmpeg.org/ffmpeg/trunk
release/0.6
Michael Niedermayer 15 years ago
parent 013202d720
commit 5e350863cc
1 changed files with 9 additions and 9 deletions
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  1. 18
      libavcodec/h264.h

18
libavcodec/h264.h
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@ -1088,9 +1088,9 @@ static void fill_decode_caches(H264Context *h, int mb_type){
if(IS_DIRECT(top_type)){
AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_DIRECT2>>1));
}else if(IS_8X8(top_type)){
int b8_xy = h->mb2b8_xy[top_xy] + h->b8_stride;
h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy];
h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 1];
int b8_xy = 4*top_xy;
h->direct_cache[scan8[0] + 0 - 1*8]= h->direct_table[b8_xy + 2];
h->direct_cache[scan8[0] + 2 - 1*8]= h->direct_table[b8_xy + 3];
}else{
AV_WN32A(&h->direct_cache[scan8[0] - 1*8], 0x01010101*(MB_TYPE_16x16>>1));
}
@ -1098,14 +1098,14 @@ static void fill_decode_caches(H264Context *h, int mb_type){
if(IS_DIRECT(left_type[0]))
h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_DIRECT2>>1;
else if(IS_8X8(left_type[0]))
h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[h->mb2b8_xy[left_xy[0]] + 1 + h->b8_stride*(left_block[0]>>1)];
h->direct_cache[scan8[0] - 1 + 0*8]= h->direct_table[4*left_xy[0] + 1 + (left_block[0]&~1)];
else
h->direct_cache[scan8[0] - 1 + 0*8]= MB_TYPE_16x16>>1;
if(IS_DIRECT(left_type[1]))
h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_DIRECT2>>1;
else if(IS_8X8(left_type[1]))
h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[h->mb2b8_xy[left_xy[1]] + 1 + h->b8_stride*(left_block[2]>>1)];
h->direct_cache[scan8[0] - 1 + 2*8]= h->direct_table[4*left_xy[1] + 1 + (left_block[2]&~1)];
else
h->direct_cache[scan8[0] - 1 + 2*8]= MB_TYPE_16x16>>1;
}
@ -1433,10 +1433,10 @@ static inline void write_back_motion(H264Context *h, int mb_type){
if(h->slice_type_nos == FF_B_TYPE && CABAC){
if(IS_8X8(mb_type)){
uint8_t *direct_table = &h->direct_table[b8_xy];
direct_table[1+0*h->b8_stride] = h->sub_mb_type[1]>>1;
direct_table[0+1*h->b8_stride] = h->sub_mb_type[2]>>1;
direct_table[1+1*h->b8_stride] = h->sub_mb_type[3]>>1;
uint8_t *direct_table = &h->direct_table[4*h->mb_xy];
direct_table[1] = h->sub_mb_type[1]>>1;
direct_table[2] = h->sub_mb_type[2]>>1;
direct_table[3] = h->sub_mb_type[3]>>1;
}
}
}

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