From 776fe466b280a960485509d92e1ece3656efb8f1 Mon Sep 17 00:00:00 2001 From: Loren Merritt Date: Tue, 29 Aug 2006 03:07:58 +0000 Subject: [PATCH] slightly faster deblock Originally committed as revision 6121 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/h264.c | 36 ++++++++++++++++++++++-------------- 1 file changed, 22 insertions(+), 14 deletions(-) diff --git a/libavcodec/h264.c b/libavcodec/h264.c index 4f0f875..63bde04 100644 --- a/libavcodec/h264.c +++ b/libavcodec/h264.c @@ -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]) ) -- 2.7.4