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Simplify/Optimize another of the mbaff loop filter cases. 

Its faster but too rarely used to make a differnce.

Originally committed as revision 21344 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2010-01-20 03:00:08 +00:00
parent 4cb93f5171
commit 97775235ec
1 changed files with 6 additions and 9 deletions
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15
libavcodec/h264_loopfilter.c
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@ -453,21 +453,18 @@ static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, u
unsigned int tmp_linesize = 2 * linesize;
unsigned int tmp_uvlinesize = 2 * uvlinesize;
int mbn_xy = mb_xy - 2 * s->mb_stride;
int qp;
int i, j;
int16_t bS[4];
int j;
for(j=0; j<2; j++, mbn_xy += s->mb_stride){
int16_t bS[4];
int qp;
if( IS_INTRA(mb_type|s->current_picture.mb_type[mbn_xy]) ) {
*(uint64_t*)bS= 0x0003000300030003ULL;
} else {
const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy];
const uint8_t *mbn_nnz = h->non_zero_count[mbn_xy] + 4+3*8;
int i;
for( i = 0; i < 4; i++ ) {
if( h->non_zero_count_cache[scan8[0]+i] != 0 ||
mbn_nnz[i+4+3*8] != 0 )
bS[i] = 2;
else
bS[i] = 1;
bS[i] = 1 + !!(h->non_zero_count_cache[scan8[0]+i] | mbn_nnz[i]);
}
}
// Do not use s->qscale as luma quantizer because it has not the same