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| author | Michael Niedermayer <michaelni@gmx.at> | 2010-01-26 22:59:19 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2010-01-26 22:59:19 +0000 |
| commit | 16e5e39ab418e5450550da7a62fce29c782cd2c8 (patch) | |
| tree | 53abed4de21904451aff8429552093eaf2e02b54 | |
| parent | d3cb93b374334c6ece6445d8172a3e257f1521c4 (diff) | |
| download | ffmpeg-16e5e39ab418e5450550da7a62fce29c782cd2c8.tar.gz | |
Optimize loop filtering of the left edge in MBAFF.
60 cpu cycles speedup
Originally committed as revision 21467 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | libavcodec/h264_loopfilter.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/libavcodec/h264_loopfilter.c b/libavcodec/h264_loopfilter.c index 5b0a5a9554..28557531e4 100644 --- a/libavcodec/h264_loopfilter.c +++ b/libavcodec/h264_loopfilter.c @@ -633,18 +633,19 @@ void ff_h264_filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint *(uint64_t*)&bS[4]= 0x0004000400040004ULL; else { for( i = 0; i < 8; i++ ) { - int mbn_xy = MB_FIELD ? h->left_mb_xy[i>>2] : h->left_mb_xy[i&1]; + int j= MB_FIELD ? i>>2 : i&1; + int mbn_xy = h->left_mb_xy[j]; + int mbn_type= h->left_type[j]; - if( IS_INTRA( s->current_picture.mb_type[mbn_xy] ) ) + if( IS_INTRA( mbn_type ) ) bS[i] = 4; - else if( h->non_zero_count_cache[12+8*(i>>1)] != 0 || - ((!h->pps.cabac && IS_8x8DCT(s->current_picture.mb_type[mbn_xy])) ? + else{ + bS[i] = 1 + !!(h->non_zero_count_cache[12+8*(i>>1)] | + ((!h->pps.cabac && IS_8x8DCT(mbn_type)) ? (h->cbp_table[mbn_xy] & ((MB_FIELD ? (i&2) : (mb_y&1)) ? 8 : 2)) : - h->non_zero_count[mbn_xy][7+(MB_FIELD ? (i&3) : (i>>2)+(mb_y&1)*2)*8])) - bS[i] = 2; - else - bS[i] = 1; + h->non_zero_count[mbn_xy][7+(MB_FIELD ? (i&3) : (i>>2)+(mb_y&1)*2)*8])); + } } } |