diff options
author | Jason Garrett-Glaser <jason@x264.com> | 2011-06-30 02:38:39 +0400 |
---|---|---|
committer | Jason Garrett-Glaser <jason@x264.com> | 2011-07-04 02:06:00 +0400 |
commit | 556f8a066cb33241bf29e85d7e24c9acf7ea9043 (patch) | |
tree | f55f5f363c90aa13fce36d06038bdeb69155c578 /libavcodec/h264.h | |
parent | ca80f11ec30834566f7b16c46a8f4eeacc9c2ce4 (diff) |
H.264: template left MB handling
Faster H.264 decoding with ALLOW_INTERLACE off.
Diffstat (limited to 'libavcodec/h264.h')
-rw-r--r-- | libavcodec/h264.h | 142 |
1 files changed, 75 insertions, 67 deletions
diff --git a/libavcodec/h264.h b/libavcodec/h264.h index 6afbced56e..dad06e2007 100644 --- a/libavcodec/h264.h +++ b/libavcodec/h264.h @@ -70,6 +70,10 @@ #define MB_FIELD h->mb_field_decoding_flag #define FRAME_MBAFF h->mb_aff_frame #define FIELD_PICTURE (s->picture_structure != PICT_FRAME) +#define LEFT_MBS 2 +#define LTOP 0 +#define LBOT 1 +#define LEFT(i) (i) #else #define MB_MBAFF 0 #define MB_FIELD 0 @@ -77,6 +81,10 @@ #define FIELD_PICTURE 0 #undef IS_INTERLACED #define IS_INTERLACED(mb_type) 0 +#define LEFT_MBS 1 +#define LTOP 0 +#define LBOT 0 +#define LEFT(i) 0 #endif #define FIELD_OR_MBAFF_PICTURE (FRAME_MBAFF || FIELD_PICTURE) @@ -272,12 +280,12 @@ typedef struct H264Context{ int topleft_mb_xy; int top_mb_xy; int topright_mb_xy; - int left_mb_xy[2]; + int left_mb_xy[LEFT_MBS]; int topleft_type; int top_type; int topright_type; - int left_type[2]; + int left_type[LEFT_MBS]; const uint8_t * left_block; int topleft_partition; @@ -767,7 +775,7 @@ static inline void pred_pskip_motion(H264Context * const h, int * const mx, int static void fill_decode_neighbors(H264Context *h, int mb_type){ MpegEncContext * const s = &h->s; const int mb_xy= h->mb_xy; - int topleft_xy, top_xy, topright_xy, left_xy[2]; + int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS]; static const uint8_t left_block_options[4][32]={ {0,1,2,3,7,10,8,11,3+0*4, 3+1*4, 3+2*4, 3+3*4, 1+4*4, 1+8*4, 1+5*4, 1+9*4}, {2,2,3,3,8,11,8,11,3+2*4, 3+2*4, 3+3*4, 3+3*4, 1+5*4, 1+9*4, 1+5*4, 1+9*4}, @@ -784,16 +792,16 @@ static void fill_decode_neighbors(H264Context *h, int mb_type){ topleft_xy = top_xy - 1; topright_xy= top_xy + 1; - left_xy[1] = left_xy[0] = mb_xy-1; + left_xy[LBOT] = left_xy[LTOP] = mb_xy-1; h->left_block = left_block_options[0]; if(FRAME_MBAFF){ const int left_mb_field_flag = IS_INTERLACED(s->current_picture.mb_type[mb_xy-1]); const int curr_mb_field_flag = IS_INTERLACED(mb_type); if(s->mb_y&1){ if (left_mb_field_flag != curr_mb_field_flag) { - left_xy[1] = left_xy[0] = mb_xy - s->mb_stride - 1; + left_xy[LBOT] = left_xy[LTOP] = mb_xy - s->mb_stride - 1; if (curr_mb_field_flag) { - left_xy[1] += s->mb_stride; + left_xy[LBOT] += s->mb_stride; h->left_block = left_block_options[3]; } else { topleft_xy += s->mb_stride; @@ -810,7 +818,7 @@ static void fill_decode_neighbors(H264Context *h, int mb_type){ } if (left_mb_field_flag != curr_mb_field_flag) { if (curr_mb_field_flag) { - left_xy[1] += s->mb_stride; + left_xy[LBOT] += s->mb_stride; h->left_block = left_block_options[3]; } else { h->left_block = left_block_options[2]; @@ -822,25 +830,25 @@ static void fill_decode_neighbors(H264Context *h, int mb_type){ h->topleft_mb_xy = topleft_xy; h->top_mb_xy = top_xy; h->topright_mb_xy= topright_xy; - h->left_mb_xy[0] = left_xy[0]; - h->left_mb_xy[1] = left_xy[1]; + h->left_mb_xy[LTOP] = left_xy[LTOP]; + h->left_mb_xy[LBOT] = left_xy[LBOT]; //FIXME do we need all in the context? h->topleft_type = s->current_picture.mb_type[topleft_xy] ; h->top_type = s->current_picture.mb_type[top_xy] ; h->topright_type= s->current_picture.mb_type[topright_xy]; - h->left_type[0] = s->current_picture.mb_type[left_xy[0]] ; - h->left_type[1] = s->current_picture.mb_type[left_xy[1]] ; + h->left_type[LTOP] = s->current_picture.mb_type[left_xy[LTOP]] ; + h->left_type[LBOT] = s->current_picture.mb_type[left_xy[LBOT]] ; if(FMO){ - if(h->slice_table[topleft_xy ] != h->slice_num) h->topleft_type = 0; - if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0; - if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = h->left_type[1] = 0; + if(h->slice_table[topleft_xy ] != h->slice_num) h->topleft_type = 0; + if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0; + if(h->slice_table[left_xy[LTOP] ] != h->slice_num) h->left_type[LTOP] = h->left_type[LBOT] = 0; }else{ if(h->slice_table[topleft_xy ] != h->slice_num){ h->topleft_type = 0; - if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0; - if(h->slice_table[left_xy[0] ] != h->slice_num) h->left_type[0] = h->left_type[1] = 0; + if(h->slice_table[top_xy ] != h->slice_num) h->top_type = 0; + if(h->slice_table[left_xy[LTOP] ] != h->slice_num) h->left_type[LTOP] = h->left_type[LBOT] = 0; } } if(h->slice_table[topright_xy] != h->slice_num) h->topright_type= 0; @@ -848,23 +856,23 @@ static void fill_decode_neighbors(H264Context *h, int mb_type){ static void fill_decode_caches(H264Context *h, int mb_type){ MpegEncContext * const s = &h->s; - int topleft_xy, top_xy, topright_xy, left_xy[2]; - int topleft_type, top_type, topright_type, left_type[2]; + int topleft_xy, top_xy, topright_xy, left_xy[LEFT_MBS]; + int topleft_type, top_type, topright_type, left_type[LEFT_MBS]; const uint8_t * left_block= h->left_block; int i; uint8_t *nnz; uint8_t *nnz_cache; - topleft_xy = h->topleft_mb_xy ; - top_xy = h->top_mb_xy ; - topright_xy = h->topright_mb_xy; - left_xy[0] = h->left_mb_xy[0] ; - left_xy[1] = h->left_mb_xy[1] ; - topleft_type = h->topleft_type ; - top_type = h->top_type ; - topright_type= h->topright_type ; - left_type[0] = h->left_type[0] ; - left_type[1] = h->left_type[1] ; + topleft_xy = h->topleft_mb_xy; + top_xy = h->top_mb_xy; + topright_xy = h->topright_mb_xy; + left_xy[LTOP] = h->left_mb_xy[LTOP]; + left_xy[LBOT] = h->left_mb_xy[LBOT]; + topleft_type = h->topleft_type; + top_type = h->top_type; + topright_type = h->topright_type; + left_type[LTOP]= h->left_type[LTOP]; + left_type[LBOT]= h->left_type[LBOT]; if(!IS_SKIP(mb_type)){ if(IS_INTRA(mb_type)){ @@ -879,27 +887,27 @@ static void fill_decode_caches(H264Context *h, int mb_type){ h->top_samples_available= 0x33FF; h->topright_samples_available= 0x26EA; } - if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[0])){ + if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])){ if(IS_INTERLACED(mb_type)){ - if(!(left_type[0] & type_mask)){ + if(!(left_type[LTOP] & type_mask)){ h->topleft_samples_available&= 0xDFFF; h->left_samples_available&= 0x5FFF; } - if(!(left_type[1] & type_mask)){ + if(!(left_type[LBOT] & type_mask)){ h->topleft_samples_available&= 0xFF5F; h->left_samples_available&= 0xFF5F; } }else{ - int left_typei = s->current_picture.mb_type[left_xy[0] + s->mb_stride]; + int left_typei = s->current_picture.mb_type[left_xy[LTOP] + s->mb_stride]; - assert(left_xy[0] == left_xy[1]); - if(!((left_typei & type_mask) && (left_type[0] & type_mask))){ + assert(left_xy[LTOP] == left_xy[LBOT]); + if(!((left_typei & type_mask) && (left_type[LTOP] & type_mask))){ h->topleft_samples_available&= 0xDF5F; h->left_samples_available&= 0x5F5F; } } }else{ - if(!(left_type[0] & type_mask)){ + if(!(left_type[LTOP] & type_mask)){ h->topleft_samples_available&= 0xDF5F; h->left_samples_available&= 0x5F5F; } @@ -921,13 +929,13 @@ static void fill_decode_caches(H264Context *h, int mb_type){ h->intra4x4_pred_mode_cache[7+8*0]= 2 - 3*!(top_type & type_mask); } for(i=0; i<2; i++){ - if(IS_INTRA4x4(left_type[i])){ - int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[i]]; + if(IS_INTRA4x4(left_type[LEFT(i)])){ + int8_t *mode= h->intra4x4_pred_mode + h->mb2br_xy[left_xy[LEFT(i)]]; h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= mode[6-left_block[0+2*i]]; h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= mode[6-left_block[1+2*i]]; }else{ h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]= - h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[i] & type_mask); + h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= 2 - 3*!(left_type[LEFT(i)] & type_mask); } } } @@ -962,8 +970,8 @@ static void fill_decode_caches(H264Context *h, int mb_type){ } for (i=0; i<2; i++) { - if(left_type[i]){ - nnz = h->non_zero_count[left_xy[i]]; + if(left_type[LEFT(i)]){ + nnz = h->non_zero_count[left_xy[LEFT(i)]]; nnz_cache[3+8* 1 + 2*8*i]= nnz[left_block[8+0+2*i]]; nnz_cache[3+8* 2 + 2*8*i]= nnz[left_block[8+1+2*i]]; if(CHROMA444){ @@ -993,10 +1001,10 @@ static void fill_decode_caches(H264Context *h, int mb_type){ h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; } // left_cbp - if (left_type[0]) { - h->left_cbp = (h->cbp_table[left_xy[0]] & 0x7F0) - | ((h->cbp_table[left_xy[0]]>>(left_block[0]&(~1)))&2) - | (((h->cbp_table[left_xy[1]]>>(left_block[2]&(~1)))&2) << 2); + if (left_type[LTOP]) { + h->left_cbp = (h->cbp_table[left_xy[LTOP]] & 0x7F0) + | ((h->cbp_table[left_xy[LTOP]]>>(left_block[0]&(~1)))&2) + | (((h->cbp_table[left_xy[LBOT]]>>(left_block[2]&(~1)))&2) << 2); } else { h->left_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; } @@ -1031,9 +1039,9 @@ static void fill_decode_caches(H264Context *h, int mb_type){ if(mb_type & (MB_TYPE_16x8|MB_TYPE_8x8)){ for(i=0; i<2; i++){ int cache_idx = -1 + i*2*8; - if(USES_LIST(left_type[i], list)){ - const int b_xy= h->mb2b_xy[left_xy[i]] + 3; - const int b8_xy= 4*left_xy[i] + 1; + if(USES_LIST(left_type[LEFT(i)], list)){ + const int b_xy= h->mb2b_xy[left_xy[LEFT(i)]] + 3; + const int b8_xy= 4*left_xy[LEFT(i)] + 1; AV_COPY32(mv_cache[cache_idx ], mv[b_xy + b_stride*left_block[0+i*2]]); AV_COPY32(mv_cache[cache_idx+8], mv[b_xy + b_stride*left_block[1+i*2]]); ref_cache[cache_idx ]= ref[b8_xy + (left_block[0+i*2]&~1)]; @@ -1042,18 +1050,18 @@ static void fill_decode_caches(H264Context *h, int mb_type){ AV_ZERO32(mv_cache[cache_idx ]); AV_ZERO32(mv_cache[cache_idx+8]); ref_cache[cache_idx ]= - ref_cache[cache_idx+8]= (left_type[i]) ? LIST_NOT_USED : PART_NOT_AVAILABLE; + ref_cache[cache_idx+8]= (left_type[LEFT(i)]) ? LIST_NOT_USED : PART_NOT_AVAILABLE; } } }else{ - if(USES_LIST(left_type[0], list)){ - const int b_xy= h->mb2b_xy[left_xy[0]] + 3; - const int b8_xy= 4*left_xy[0] + 1; + if(USES_LIST(left_type[LTOP], list)){ + const int b_xy= h->mb2b_xy[left_xy[LTOP]] + 3; + const int b8_xy= 4*left_xy[LTOP] + 1; AV_COPY32(mv_cache[-1], mv[b_xy + b_stride*left_block[0]]); ref_cache[-1]= ref[b8_xy + (left_block[0]&~1)]; }else{ AV_ZERO32(mv_cache[-1]); - ref_cache[-1]= left_type[0] ? LIST_NOT_USED : PART_NOT_AVAILABLE; + ref_cache[-1]= left_type[LTOP] ? LIST_NOT_USED : PART_NOT_AVAILABLE; } } @@ -1095,16 +1103,16 @@ static void fill_decode_caches(H264Context *h, int mb_type){ }else{ AV_ZERO64(mvd_cache[0 - 1*8]); } - if(USES_LIST(left_type[0], list)){ - const int b_xy= h->mb2br_xy[left_xy[0]] + 6; + if(USES_LIST(left_type[LTOP], list)){ + const int b_xy= h->mb2br_xy[left_xy[LTOP]] + 6; AV_COPY16(mvd_cache[-1 + 0*8], mvd[b_xy - left_block[0]]); AV_COPY16(mvd_cache[-1 + 1*8], mvd[b_xy - left_block[1]]); }else{ AV_ZERO16(mvd_cache[-1 + 0*8]); AV_ZERO16(mvd_cache[-1 + 1*8]); } - if(USES_LIST(left_type[1], list)){ - const int b_xy= h->mb2br_xy[left_xy[1]] + 6; + if(USES_LIST(left_type[LBOT], list)){ + const int b_xy= h->mb2br_xy[left_xy[LBOT]] + 6; AV_COPY16(mvd_cache[-1 + 2*8], mvd[b_xy - left_block[2]]); AV_COPY16(mvd_cache[-1 + 3*8], mvd[b_xy - left_block[3]]); }else{ @@ -1128,17 +1136,17 @@ static void fill_decode_caches(H264Context *h, int mb_type){ AV_WN32A(&direct_cache[-1*8], 0x01010101*(MB_TYPE_16x16>>1)); } - if(IS_DIRECT(left_type[0])) + if(IS_DIRECT(left_type[LTOP])) direct_cache[-1 + 0*8]= MB_TYPE_DIRECT2>>1; - else if(IS_8X8(left_type[0])) - direct_cache[-1 + 0*8]= direct_table[4*left_xy[0] + 1 + (left_block[0]&~1)]; + else if(IS_8X8(left_type[LTOP])) + direct_cache[-1 + 0*8]= direct_table[4*left_xy[LTOP] + 1 + (left_block[0]&~1)]; else direct_cache[-1 + 0*8]= MB_TYPE_16x16>>1; - if(IS_DIRECT(left_type[1])) + if(IS_DIRECT(left_type[LBOT])) direct_cache[-1 + 2*8]= MB_TYPE_DIRECT2>>1; - else if(IS_8X8(left_type[1])) - direct_cache[-1 + 2*8]= direct_table[4*left_xy[1] + 1 + (left_block[2]&~1)]; + else if(IS_8X8(left_type[LBOT])) + direct_cache[-1 + 2*8]= direct_table[4*left_xy[LBOT] + 1 + (left_block[2]&~1)]; else direct_cache[-1 + 2*8]= MB_TYPE_16x16>>1; } @@ -1152,10 +1160,10 @@ static void fill_decode_caches(H264Context *h, int mb_type){ MAP_F2F(scan8[0] + 2 - 1*8, top_type)\ MAP_F2F(scan8[0] + 3 - 1*8, top_type)\ MAP_F2F(scan8[0] + 4 - 1*8, topright_type)\ - MAP_F2F(scan8[0] - 1 + 0*8, left_type[0])\ - MAP_F2F(scan8[0] - 1 + 1*8, left_type[0])\ - MAP_F2F(scan8[0] - 1 + 2*8, left_type[1])\ - MAP_F2F(scan8[0] - 1 + 3*8, left_type[1]) + MAP_F2F(scan8[0] - 1 + 0*8, left_type[LTOP])\ + MAP_F2F(scan8[0] - 1 + 1*8, left_type[LTOP])\ + MAP_F2F(scan8[0] - 1 + 2*8, left_type[LBOT])\ + MAP_F2F(scan8[0] - 1 + 3*8, left_type[LBOT]) if(MB_FIELD){ #define MAP_F2F(idx, mb_type)\ if(!IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\ @@ -1179,7 +1187,7 @@ static void fill_decode_caches(H264Context *h, int mb_type){ } } - h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[0]); + h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]); } /** |