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Merge mv&ref related code for spatial direct MV code.

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a bit more than 10 cpu cycles faster.

Originally committed as revision 21678 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-02-07 21:53:55 +00:00
parent 0a8dca8765
commit f28a2656c3
1 changed files with 12 additions and 21 deletions
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33
libavcodec/h264_direct.c
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@ -231,31 +231,22 @@ single_col:
if(refc == PART_NOT_AVAILABLE)
refc = h->ref_cache[list][scan8[0] - 8 - 1];
ref[list] = FFMIN3((unsigned)refa, (unsigned)refb, (unsigned)refc);
if(ref[list] < 0)
if(ref[list] >= 0){
pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
}else{
int mask= ~(MB_TYPE_L0 << (2*list));
mv[list][0] = mv[list][1] = 0;
ref[list] = -1;
}
if(ref[0] < 0 && ref[1] < 0){
ref[0] = ref[1] = 0;
mv[0][0] = mv[0][1] =
mv[1][0] = mv[1][1] = 0;
}else{
for(list=0; list<2; list++){
if(ref[list] >= 0)
pred_motion(h, 0, 4, list, ref[list], &mv[list][0], &mv[list][1]);
else
mv[list][0] = mv[list][1] = 0;
if(!is_b8x8)
*mb_type &= mask;
sub_mb_type &= mask;
}
}
if(ref[1] < 0){
if(ref[0] < 0 && ref[1] < 0){
ref[0] = ref[1] = 0;
if(!is_b8x8)
*mb_type &= ~MB_TYPE_L1;
sub_mb_type &= ~MB_TYPE_L1;
}else if(ref[0] < 0){
if(!is_b8x8)
*mb_type &= ~MB_TYPE_L0;
sub_mb_type &= ~MB_TYPE_L0;
*mb_type |= MB_TYPE_L0L1;
sub_mb_type |= MB_TYPE_L0L1;
}
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){