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slightly faster deblock

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Originally committed as revision 6121 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2006-08-29 03:07:58 +00:00
parent a1b65018f1
commit 776fe466b2
1 changed files with 22 additions and 14 deletions
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36
libavcodec/h264.c
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@ -371,6 +371,7 @@ typedef struct H264Context{
/* 0x100 -> non null luma_dc, 0x80/0x40 -> non null chroma_dc (cb/cr), 0x?0 -> chroma_cbp(0,1,2), 0x0? luma_cbp */
uint16_t *cbp_table;
int cbp;
int top_cbp;
int left_cbp;
/* chroma_pred_mode for i4x4 or i16x16, else 0 */
@ -5479,6 +5480,7 @@ decode_intra_mb:
else
cbp= golomb_to_inter_cbp[cbp];
}
h->cbp = cbp;
if(dct8x8_allowed && (cbp&15) && !IS_INTRA(mb_type)){
if(get_bits1(&s->gb))
@ -6581,7 +6583,7 @@ decode_intra_mb:
cbp |= decode_cabac_mb_cbp_chroma( h ) << 4;
}
h->cbp_table[mb_xy] = cbp;
h->cbp_table[mb_xy] = h->cbp = cbp;
if( dct8x8_allowed && (cbp&15) && !IS_INTRA( mb_type ) ) {
if( decode_cabac_mb_transform_size( h ) )
@ -7020,11 +7022,12 @@ static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y,
qpc1 = get_chroma_qp( h->pps.chroma_qp_index_offset, qp1 );
qp0 = (qp + qp0 + 1) >> 1;
qp1 = (qp + qp1 + 1) >> 1;
qp_thresh = 15 - h->slice_alpha_c0_offset - FFMAX(0, h->pps.chroma_qp_index_offset);
if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh)
return;
qpc0 = (qpc + qpc0 + 1) >> 1;
qpc1 = (qpc + qpc1 + 1) >> 1;
qp_thresh = 15 - h->slice_alpha_c0_offset;
if(qp <= qp_thresh && qp0 <= qp_thresh && qp1 <= qp_thresh &&
qpc <= qp_thresh && qpc0 <= qp_thresh && qpc1 <= qp_thresh)
return;
if( IS_INTRA(mb_type) ) {
int16_t bS4[4] = {4,4,4,4};
@ -7056,16 +7059,21 @@ static void filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y,
} else {
DECLARE_ALIGNED_8(int16_t, bS[2][4][4]);
uint64_t (*bSv)[4] = (uint64_t(*)[4])bS;
int edges = (mb_type & (MB_TYPE_16x16|MB_TYPE_SKIP))
== (MB_TYPE_16x16|MB_TYPE_SKIP) ? 1 : 4;
int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
(mb_type & MB_TYPE_16x8) ? 1 : 0;
int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
&& (s->current_picture.mb_type[mb_xy-1] & (MB_TYPE_16x16 | MB_TYPE_8x16))
? 3 : 0;
int step = IS_8x8DCT(mb_type) ? 2 : 1;
s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
(h->slice_type == B_TYPE), edges, step, mask_edge0, mask_edge1 );
int edges;
if( IS_8x8DCT(mb_type) && (h->cbp&7) == 7 ) {
edges = 4;
bSv[0][0] = bSv[0][2] = bSv[1][0] = bSv[1][2] = 0x0002000200020002ULL;
} else {
int mask_edge1 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16)) ? 3 :
(mb_type & MB_TYPE_16x8) ? 1 : 0;
int mask_edge0 = (mb_type & (MB_TYPE_16x16 | MB_TYPE_8x16))
&& (s->current_picture.mb_type[mb_xy-1] & (MB_TYPE_16x16 | MB_TYPE_8x16))
? 3 : 0;
int step = IS_8x8DCT(mb_type) ? 2 : 1;
edges = (mb_type & MB_TYPE_16x16) && !(h->cbp & 15) ? 1 : 4;
s->dsp.h264_loop_filter_strength( bS, h->non_zero_count_cache, h->ref_cache, h->mv_cache,
(h->slice_type == B_TYPE), edges, step, mask_edge0, mask_edge1 );
}
if( IS_INTRA(s->current_picture.mb_type[mb_xy-1]) )
bSv[0][0] = 0x0004000400040004ULL;
if( IS_INTRA(s->current_picture.mb_type[h->top_mb_xy]) )