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Remove some useless operations from the code setting left_cbp. 

maybe 0.5 cpu cycles faster

Originally committed as revision 22078 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-02-26 15:03:00 +00:00
parent 6abda15f56
commit cf7b67bc40
1 changed files with 3 additions and 3 deletions
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6
libavcodec/h264.h
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@ -952,9 +952,9 @@ static void fill_decode_caches(H264Context *h, int mb_type){
}
// left_cbp
if (left_type[0]) {
h->left_cbp = h->cbp_table[left_xy[0]] & 0x1f0;
h->left_cbp |= ((h->cbp_table[left_xy[0]]>>((left_block[0]&(~1))+1))&0x1) << 1;
h->left_cbp |= ((h->cbp_table[left_xy[1]]>>((left_block[2]&(~1))+1))&0x1) << 3;
h->left_cbp = (h->cbp_table[left_xy[0]] & 0x1f0)
| ((h->cbp_table[left_xy[0]]>>(left_block[0]&(~1)))&2)
| (((h->cbp_table[left_xy[1]]>>(left_block[2]&(~1)))&2) << 2);
} else {
h->left_cbp = IS_INTRA(mb_type) ? 0x1CF : 0x00F;
}