X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fh264_mvpred.h;h=2bd4458f0b5f04448fca62feea3ef496cfd15d21;hb=0c71cc65266469253d531e8101a211ce8f26387c;hp=6b89ad7209d2254613477156ba041886b9703eb7;hpb=350fc614b48190d46e6e66e78ba4031a8290e574;p=ffmpeg diff --git a/libavcodec/h264_mvpred.h b/libavcodec/h264_mvpred.h index 6b89ad7209d..2bd4458f0b5 100644 --- a/libavcodec/h264_mvpred.h +++ b/libavcodec/h264_mvpred.h @@ -2,25 +2,25 @@ * H.26L/H.264/AVC/JVT/14496-10/... motion vector predicion * Copyright (c) 2003 Michael Niedermayer * - * This file is part of FFmpeg. + * This file is part of Libav. * - * FFmpeg is free software; you can redistribute it and/or + * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * FFmpeg is distributed in the hope that it will be useful, + * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with FFmpeg; if not, write to the Free Software + * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** - * @file libavcodec/h264_mvpred.h + * @file * H.264 / AVC / MPEG4 part10 motion vector predicion. * @author Michael Niedermayer */ @@ -35,40 +35,40 @@ //#undef NDEBUG #include -static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){ +static av_always_inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, int list, int part_width){ const int topright_ref= h->ref_cache[list][ i - 8 + part_width ]; MpegEncContext *s = &h->s; /* there is no consistent mapping of mvs to neighboring locations that will * make mbaff happy, so we can't move all this logic to fill_caches */ if(FRAME_MBAFF){ - const uint32_t *mb_types = s->current_picture_ptr->mb_type; - const int16_t *mv; - *(uint32_t*)h->mv_cache[list][scan8[0]-2] = 0; - *C = h->mv_cache[list][scan8[0]-2]; - -#define SET_DIAG_MV(MV_OP, REF_OP, X4, Y4)\ - const int x4 = X4, y4 = Y4;\ - const int mb_type = mb_types[(x4>>2)+(y4>>2)*s->mb_stride];\ + +#define SET_DIAG_MV(MV_OP, REF_OP, XY, Y4)\ + const int xy = XY, y4 = Y4;\ + const int mb_type = mb_types[xy+(y4>>2)*s->mb_stride];\ if(!USES_LIST(mb_type,list))\ return LIST_NOT_USED;\ - mv = s->current_picture_ptr->motion_val[list][x4 + y4*h->b_stride];\ + mv = s->current_picture_ptr->f.motion_val[list][h->mb2b_xy[xy] + 3 + y4*h->b_stride];\ h->mv_cache[list][scan8[0]-2][0] = mv[0];\ h->mv_cache[list][scan8[0]-2][1] = mv[1] MV_OP;\ - return s->current_picture_ptr->ref_index[list][(x4>>1) + (y4>>1)*h->b8_stride] REF_OP; + return s->current_picture_ptr->f.ref_index[list][4*xy + 1 + (y4 & ~1)] REF_OP; if(topright_ref == PART_NOT_AVAILABLE - && ((s->mb_y&1) || i >= scan8[0]+8) && (i&7)==4 + && i >= scan8[0]+8 && (i&7)==4 && h->ref_cache[list][scan8[0]-1] != PART_NOT_AVAILABLE){ + const uint32_t *mb_types = s->current_picture_ptr->f.mb_type; + const int16_t *mv; + AV_ZERO32(h->mv_cache[list][scan8[0]-2]); + *C = h->mv_cache[list][scan8[0]-2]; + if(!MB_FIELD - && IS_INTERLACED(mb_types[h->left_mb_xy[0]])){ - SET_DIAG_MV(*2, >>1, s->mb_x*4-1, (s->mb_y|1)*4+(s->mb_y&1)*2+(i>>4)-1); + && IS_INTERLACED(h->left_type[0])){ + SET_DIAG_MV(*2, >>1, h->left_mb_xy[0]+s->mb_stride, (s->mb_y&1)*2+(i>>5)); } if(MB_FIELD - && !IS_INTERLACED(mb_types[h->left_mb_xy[0]]) - && i >= scan8[0]+8){ + && !IS_INTERLACED(h->left_type[0])){ // left shift will turn LIST_NOT_USED into PART_NOT_AVAILABLE, but that's OK. - SET_DIAG_MV(/2, <<1, s->mb_x*4-1, (s->mb_y&~1)*4 - 1 + ((i-scan8[0])>>3)*2); + SET_DIAG_MV(/2, <<1, h->left_mb_xy[i>=36], ((i>>2))&3); } } #undef SET_DIAG_MV @@ -86,13 +86,13 @@ static inline int fetch_diagonal_mv(H264Context *h, const int16_t **C, int i, in } /** - * gets the predicted MV. + * Get the predicted MV. * @param n the block index * @param part_width the width of the partition (4, 8,16) -> (1, 2, 4) * @param mx the x component of the predicted motion vector * @param my the y component of the predicted motion vector */ -static inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){ +static av_always_inline void pred_motion(H264Context * const h, int n, int part_width, int list, int ref, int * const mx, int * const my){ const int index8= scan8[n]; const int top_ref= h->ref_cache[list][ index8 - 8 ]; const int left_ref= h->ref_cache[list][ index8 - 1 ]; @@ -142,12 +142,12 @@ static inline void pred_motion(H264Context * const h, int n, int part_width, int } /** - * gets the directionally predicted 16x8 MV. + * Get the directionally predicted 16x8 MV. * @param n the block index * @param mx the x component of the predicted motion vector * @param my the y component of the predicted motion vector */ -static inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ +static av_always_inline void pred_16x8_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ if(n==0){ const int top_ref= h->ref_cache[list][ scan8[0] - 8 ]; const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ]; @@ -177,12 +177,12 @@ static inline void pred_16x8_motion(H264Context * const h, int n, int list, int } /** - * gets the directionally predicted 8x16 MV. + * Get the directionally predicted 8x16 MV. * @param n the block index * @param mx the x component of the predicted motion vector * @param my the y component of the predicted motion vector */ -static inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ +static av_always_inline void pred_8x16_motion(H264Context * const h, int n, int list, int ref, int * const mx, int * const my){ if(n==0){ const int left_ref= h->ref_cache[list][ scan8[0] - 1 ]; const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ]; @@ -213,23 +213,580 @@ static inline void pred_8x16_motion(H264Context * const h, int n, int list, int pred_motion(h, n, 2, list, ref, mx, my); } -static inline void pred_pskip_motion(H264Context * const h, int * const mx, int * const my){ - const int top_ref = h->ref_cache[0][ scan8[0] - 8 ]; - const int left_ref= h->ref_cache[0][ scan8[0] - 1 ]; +#define FIX_MV_MBAFF(type, refn, mvn, idx)\ + if(FRAME_MBAFF){\ + if(MB_FIELD){\ + if(!IS_INTERLACED(type)){\ + refn <<= 1;\ + AV_COPY32(mvbuf[idx], mvn);\ + mvbuf[idx][1] /= 2;\ + mvn = mvbuf[idx];\ + }\ + }else{\ + if(IS_INTERLACED(type)){\ + refn >>= 1;\ + AV_COPY32(mvbuf[idx], mvn);\ + mvbuf[idx][1] <<= 1;\ + mvn = mvbuf[idx];\ + }\ + }\ + } - tprintf(h->s.avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y); +static av_always_inline void pred_pskip_motion(H264Context * const h){ + DECLARE_ALIGNED(4, static const int16_t, zeromv)[2] = {0}; + DECLARE_ALIGNED(4, int16_t, mvbuf)[3][2]; + MpegEncContext * const s = &h->s; + int8_t *ref = s->current_picture.f.ref_index[0]; + int16_t (*mv)[2] = s->current_picture.f.motion_val[0]; + int top_ref, left_ref, diagonal_ref, match_count, mx, my; + const int16_t *A, *B, *C; + int b_stride = h->b_stride; + + fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, 0, 1); + + /* To avoid doing an entire fill_decode_caches, we inline the relevant parts here. + * FIXME: this is a partial duplicate of the logic in fill_decode_caches, but it's + * faster this way. Is there a way to avoid this duplication? + */ + if(USES_LIST(h->left_type[LTOP], 0)){ + left_ref = ref[4*h->left_mb_xy[LTOP] + 1 + (h->left_block[0]&~1)]; + A = mv[h->mb2b_xy[h->left_mb_xy[LTOP]] + 3 + b_stride*h->left_block[0]]; + FIX_MV_MBAFF(h->left_type[LTOP], left_ref, A, 0); + if(!(left_ref | AV_RN32A(A))){ + goto zeromv; + } + }else if(h->left_type[LTOP]){ + left_ref = LIST_NOT_USED; + A = zeromv; + }else{ + goto zeromv; + } + + if(USES_LIST(h->top_type, 0)){ + top_ref = ref[4*h->top_mb_xy + 2]; + B = mv[h->mb2b_xy[h->top_mb_xy] + 3*b_stride]; + FIX_MV_MBAFF(h->top_type, top_ref, B, 1); + if(!(top_ref | AV_RN32A(B))){ + goto zeromv; + } + }else if(h->top_type){ + top_ref = LIST_NOT_USED; + B = zeromv; + }else{ + goto zeromv; + } - if(top_ref == PART_NOT_AVAILABLE || left_ref == PART_NOT_AVAILABLE - || !( top_ref | *(uint32_t*)h->mv_cache[0][ scan8[0] - 8 ]) - || !(left_ref | *(uint32_t*)h->mv_cache[0][ scan8[0] - 1 ])){ + tprintf(h->s.avctx, "pred_pskip: (%d) (%d) at %2d %2d\n", top_ref, left_ref, h->s.mb_x, h->s.mb_y); - *mx = *my = 0; - return; + if(USES_LIST(h->topright_type, 0)){ + diagonal_ref = ref[4*h->topright_mb_xy + 2]; + C = mv[h->mb2b_xy[h->topright_mb_xy] + 3*b_stride]; + FIX_MV_MBAFF(h->topright_type, diagonal_ref, C, 2); + }else if(h->topright_type){ + diagonal_ref = LIST_NOT_USED; + C = zeromv; + }else{ + if(USES_LIST(h->topleft_type, 0)){ + diagonal_ref = ref[4*h->topleft_mb_xy + 1 + (h->topleft_partition & 2)]; + C = mv[h->mb2b_xy[h->topleft_mb_xy] + 3 + b_stride + (h->topleft_partition & 2*b_stride)]; + FIX_MV_MBAFF(h->topleft_type, diagonal_ref, C, 2); + }else if(h->topleft_type){ + diagonal_ref = LIST_NOT_USED; + C = zeromv; + }else{ + diagonal_ref = PART_NOT_AVAILABLE; + C = zeromv; + } } - pred_motion(h, 0, 4, 0, 0, mx, my); + match_count= !diagonal_ref + !top_ref + !left_ref; + tprintf(h->s.avctx, "pred_pskip_motion match_count=%d\n", match_count); + if(match_count > 1){ + mx = mid_pred(A[0], B[0], C[0]); + my = mid_pred(A[1], B[1], C[1]); + }else if(match_count==1){ + if(!left_ref){ + mx = A[0]; + my = A[1]; + }else if(!top_ref){ + mx = B[0]; + my = B[1]; + }else{ + mx = C[0]; + my = C[1]; + } + }else{ + mx = mid_pred(A[0], B[0], C[0]); + my = mid_pred(A[1], B[1], C[1]); + } + fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, pack16to32(mx,my), 4); return; +zeromv: + fill_rectangle( h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4); + return; +} + +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[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}, + {0,0,1,1,7,10,7,10,3+0*4, 3+0*4, 3+1*4, 3+1*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4}, + {0,2,0,2,7,10,7,10,3+0*4, 3+2*4, 3+0*4, 3+2*4, 1+4*4, 1+8*4, 1+4*4, 1+8*4} + }; + + h->topleft_partition= -1; + + top_xy = mb_xy - (s->mb_stride << MB_FIELD); + + /* Wow, what a mess, why didn't they simplify the interlacing & intra + * stuff, I can't imagine that these complex rules are worth it. */ + + topleft_xy = top_xy - 1; + topright_xy= top_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.f.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[LBOT] = left_xy[LTOP] = mb_xy - s->mb_stride - 1; + if (curr_mb_field_flag) { + left_xy[LBOT] += s->mb_stride; + h->left_block = left_block_options[3]; + } else { + topleft_xy += s->mb_stride; + // take top left mv from the middle of the mb, as opposed to all other modes which use the bottom right partition + h->topleft_partition = 0; + h->left_block = left_block_options[1]; + } + } + }else{ + if(curr_mb_field_flag){ + topleft_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy - 1] >> 7) & 1) - 1); + topright_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy + 1] >> 7) & 1) - 1); + top_xy += s->mb_stride & (((s->current_picture.f.mb_type[top_xy ] >> 7) & 1) - 1); + } + if (left_mb_field_flag != curr_mb_field_flag) { + if (curr_mb_field_flag) { + left_xy[LBOT] += s->mb_stride; + h->left_block = left_block_options[3]; + } else { + h->left_block = left_block_options[2]; + } + } + } + } + + h->topleft_mb_xy = topleft_xy; + h->top_mb_xy = top_xy; + h->topright_mb_xy= topright_xy; + 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.f.mb_type[topleft_xy]; + h->top_type = s->current_picture.f.mb_type[top_xy]; + h->topright_type = s->current_picture.f.mb_type[topright_xy]; + h->left_type[LTOP] = s->current_picture.f.mb_type[left_xy[LTOP]]; + h->left_type[LBOT] = s->current_picture.f.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[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[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; +} + +static void fill_decode_caches(H264Context *h, int mb_type){ + MpegEncContext * const s = &h->s; + 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[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)){ + int type_mask= h->pps.constrained_intra_pred ? IS_INTRA(-1) : -1; + h->topleft_samples_available= + h->top_samples_available= + h->left_samples_available= 0xFFFF; + h->topright_samples_available= 0xEEEA; + + if(!(top_type & type_mask)){ + h->topleft_samples_available= 0xB3FF; + h->top_samples_available= 0x33FF; + h->topright_samples_available= 0x26EA; + } + if(IS_INTERLACED(mb_type) != IS_INTERLACED(left_type[LTOP])){ + if(IS_INTERLACED(mb_type)){ + if(!(left_type[LTOP] & type_mask)){ + h->topleft_samples_available&= 0xDFFF; + h->left_samples_available&= 0x5FFF; + } + if(!(left_type[LBOT] & type_mask)){ + h->topleft_samples_available&= 0xFF5F; + h->left_samples_available&= 0xFF5F; + } + }else{ + int left_typei = s->current_picture.f.mb_type[left_xy[LTOP] + s->mb_stride]; + + 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[LTOP] & type_mask)){ + h->topleft_samples_available&= 0xDF5F; + h->left_samples_available&= 0x5F5F; + } + } + + if(!(topleft_type & type_mask)) + h->topleft_samples_available&= 0x7FFF; + + if(!(topright_type & type_mask)) + h->topright_samples_available&= 0xFBFF; + + if(IS_INTRA4x4(mb_type)){ + if(IS_INTRA4x4(top_type)){ + AV_COPY32(h->intra4x4_pred_mode_cache+4+8*0, h->intra4x4_pred_mode + h->mb2br_xy[top_xy]); + }else{ + h->intra4x4_pred_mode_cache[4+8*0]= + h->intra4x4_pred_mode_cache[5+8*0]= + h->intra4x4_pred_mode_cache[6+8*0]= + 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[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[LEFT(i)] & type_mask); + } + } + } + } + + +/* +0 . T T. T T T T +1 L . .L . . . . +2 L . .L . . . . +3 . T TL . . . . +4 L . .L . . . . +5 L . .. . . . . +*/ +//FIXME constraint_intra_pred & partitioning & nnz (let us hope this is just a typo in the spec) + nnz_cache = h->non_zero_count_cache; + if(top_type){ + nnz = h->non_zero_count[top_xy]; + AV_COPY32(&nnz_cache[4+8* 0], &nnz[4*3]); + if(!s->chroma_y_shift){ + AV_COPY32(&nnz_cache[4+8* 5], &nnz[4* 7]); + AV_COPY32(&nnz_cache[4+8*10], &nnz[4*11]); + }else{ + AV_COPY32(&nnz_cache[4+8* 5], &nnz[4* 5]); + AV_COPY32(&nnz_cache[4+8*10], &nnz[4* 9]); + } + }else{ + uint32_t top_empty = CABAC && !IS_INTRA(mb_type) ? 0 : 0x40404040; + AV_WN32A(&nnz_cache[4+8* 0], top_empty); + AV_WN32A(&nnz_cache[4+8* 5], top_empty); + AV_WN32A(&nnz_cache[4+8*10], top_empty); + } + + for (i=0; i<2; 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){ + nnz_cache[3+8* 6 + 2*8*i]= nnz[left_block[8+0+2*i]+4*4]; + nnz_cache[3+8* 7 + 2*8*i]= nnz[left_block[8+1+2*i]+4*4]; + nnz_cache[3+8*11 + 2*8*i]= nnz[left_block[8+0+2*i]+8*4]; + nnz_cache[3+8*12 + 2*8*i]= nnz[left_block[8+1+2*i]+8*4]; + }else if(CHROMA422) { + nnz_cache[3+8* 6 + 2*8*i]= nnz[left_block[8+0+2*i]-2+4*4]; + nnz_cache[3+8* 7 + 2*8*i]= nnz[left_block[8+1+2*i]-2+4*4]; + nnz_cache[3+8*11 + 2*8*i]= nnz[left_block[8+0+2*i]-2+8*4]; + nnz_cache[3+8*12 + 2*8*i]= nnz[left_block[8+1+2*i]-2+8*4]; + }else{ + nnz_cache[3+8* 6 + 8*i]= nnz[left_block[8+4+2*i]]; + nnz_cache[3+8*11 + 8*i]= nnz[left_block[8+5+2*i]]; + } + }else{ + nnz_cache[3+8* 1 + 2*8*i]= + nnz_cache[3+8* 2 + 2*8*i]= + nnz_cache[3+8* 6 + 2*8*i]= + nnz_cache[3+8* 7 + 2*8*i]= + nnz_cache[3+8*11 + 2*8*i]= + nnz_cache[3+8*12 + 2*8*i]= CABAC && !IS_INTRA(mb_type) ? 0 : 64; + } + } + + if( CABAC ) { + // top_cbp + if(top_type) { + h->top_cbp = h->cbp_table[top_xy]; + } else { + h->top_cbp = IS_INTRA(mb_type) ? 0x7CF : 0x00F; + } + // left_cbp + 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; + } + } + } + + if(IS_INTER(mb_type) || (IS_DIRECT(mb_type) && h->direct_spatial_mv_pred)){ + int list; + int b_stride = h->b_stride; + for(list=0; listlist_count; list++){ + int8_t *ref_cache = &h->ref_cache[list][scan8[0]]; + int8_t *ref = s->current_picture.f.ref_index[list]; + int16_t (*mv_cache)[2] = &h->mv_cache[list][scan8[0]]; + int16_t (*mv)[2] = s->current_picture.f.motion_val[list]; + if(!USES_LIST(mb_type, list)){ + continue; + } + assert(!(IS_DIRECT(mb_type) && !h->direct_spatial_mv_pred)); + + if(USES_LIST(top_type, list)){ + const int b_xy= h->mb2b_xy[top_xy] + 3*b_stride; + AV_COPY128(mv_cache[0 - 1*8], mv[b_xy + 0]); + ref_cache[0 - 1*8]= + ref_cache[1 - 1*8]= ref[4*top_xy + 2]; + ref_cache[2 - 1*8]= + ref_cache[3 - 1*8]= ref[4*top_xy + 3]; + }else{ + AV_ZERO128(mv_cache[0 - 1*8]); + AV_WN32A(&ref_cache[0 - 1*8], ((top_type ? LIST_NOT_USED : PART_NOT_AVAILABLE)&0xFF)*0x01010101u); + } + + 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[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)]; + ref_cache[cache_idx+8]= ref[b8_xy + (left_block[1+i*2]&~1)]; + }else{ + AV_ZERO32(mv_cache[cache_idx ]); + AV_ZERO32(mv_cache[cache_idx+8]); + ref_cache[cache_idx ]= + ref_cache[cache_idx+8]= (left_type[LEFT(i)]) ? LIST_NOT_USED : PART_NOT_AVAILABLE; + } + } + }else{ + 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[LTOP] ? LIST_NOT_USED : PART_NOT_AVAILABLE; + } + } + + if(USES_LIST(topright_type, list)){ + const int b_xy= h->mb2b_xy[topright_xy] + 3*b_stride; + AV_COPY32(mv_cache[4 - 1*8], mv[b_xy]); + ref_cache[4 - 1*8]= ref[4*topright_xy + 2]; + }else{ + AV_ZERO32(mv_cache[4 - 1*8]); + ref_cache[4 - 1*8]= topright_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; + } + if(ref_cache[4 - 1*8] < 0){ + if(USES_LIST(topleft_type, list)){ + const int b_xy = h->mb2b_xy[topleft_xy] + 3 + b_stride + (h->topleft_partition & 2*b_stride); + const int b8_xy= 4*topleft_xy + 1 + (h->topleft_partition & 2); + AV_COPY32(mv_cache[-1 - 1*8], mv[b_xy]); + ref_cache[-1 - 1*8]= ref[b8_xy]; + }else{ + AV_ZERO32(mv_cache[-1 - 1*8]); + ref_cache[-1 - 1*8]= topleft_type ? LIST_NOT_USED : PART_NOT_AVAILABLE; + } + } + + if((mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2)) && !FRAME_MBAFF) + continue; + + if(!(mb_type&(MB_TYPE_SKIP|MB_TYPE_DIRECT2))){ + uint8_t (*mvd_cache)[2] = &h->mvd_cache[list][scan8[0]]; + uint8_t (*mvd)[2] = h->mvd_table[list]; + ref_cache[2+8*0] = + ref_cache[2+8*2] = PART_NOT_AVAILABLE; + AV_ZERO32(mv_cache[2+8*0]); + AV_ZERO32(mv_cache[2+8*2]); + + if( CABAC ) { + if(USES_LIST(top_type, list)){ + const int b_xy= h->mb2br_xy[top_xy]; + AV_COPY64(mvd_cache[0 - 1*8], mvd[b_xy + 0]); + }else{ + AV_ZERO64(mvd_cache[0 - 1*8]); + } + 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[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{ + AV_ZERO16(mvd_cache[-1 + 2*8]); + AV_ZERO16(mvd_cache[-1 + 3*8]); + } + AV_ZERO16(mvd_cache[2+8*0]); + AV_ZERO16(mvd_cache[2+8*2]); + if(h->slice_type_nos == AV_PICTURE_TYPE_B){ + uint8_t *direct_cache = &h->direct_cache[scan8[0]]; + uint8_t *direct_table = h->direct_table; + fill_rectangle(direct_cache, 4, 4, 8, MB_TYPE_16x16>>1, 1); + + if(IS_DIRECT(top_type)){ + AV_WN32A(&direct_cache[-1*8], 0x01010101u*(MB_TYPE_DIRECT2>>1)); + }else if(IS_8X8(top_type)){ + int b8_xy = 4*top_xy; + direct_cache[0 - 1*8]= direct_table[b8_xy + 2]; + direct_cache[2 - 1*8]= direct_table[b8_xy + 3]; + }else{ + AV_WN32A(&direct_cache[-1*8], 0x01010101*(MB_TYPE_16x16>>1)); + } + + if(IS_DIRECT(left_type[LTOP])) + direct_cache[-1 + 0*8]= MB_TYPE_DIRECT2>>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[LBOT])) + direct_cache[-1 + 2*8]= MB_TYPE_DIRECT2>>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; + } + } + } + if(FRAME_MBAFF){ +#define MAP_MVS\ + MAP_F2F(scan8[0] - 1 - 1*8, topleft_type)\ + MAP_F2F(scan8[0] + 0 - 1*8, top_type)\ + MAP_F2F(scan8[0] + 1 - 1*8, top_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[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){\ + h->ref_cache[list][idx] <<= 1;\ + h->mv_cache[list][idx][1] /= 2;\ + h->mvd_cache[list][idx][1] >>=1;\ + } + MAP_MVS +#undef MAP_F2F + }else{ +#define MAP_F2F(idx, mb_type)\ + if(IS_INTERLACED(mb_type) && h->ref_cache[list][idx] >= 0){\ + h->ref_cache[list][idx] >>= 1;\ + h->mv_cache[list][idx][1] <<= 1;\ + h->mvd_cache[list][idx][1] <<= 1;\ + } + MAP_MVS +#undef MAP_F2F + } + } + } + } + + h->neighbor_transform_size= !!IS_8x8DCT(top_type) + !!IS_8x8DCT(left_type[LTOP]); +} + +/** + * decodes a P_SKIP or B_SKIP macroblock + */ +static void av_unused decode_mb_skip(H264Context *h){ + MpegEncContext * const s = &h->s; + const int mb_xy= h->mb_xy; + int mb_type=0; + + memset(h->non_zero_count[mb_xy], 0, 48); + + if(MB_FIELD) + mb_type|= MB_TYPE_INTERLACED; + + if( h->slice_type_nos == AV_PICTURE_TYPE_B ) + { + // just for fill_caches. pred_direct_motion will set the real mb_type + mb_type|= MB_TYPE_L0L1|MB_TYPE_DIRECT2|MB_TYPE_SKIP; + if(h->direct_spatial_mv_pred){ + fill_decode_neighbors(h, mb_type); + fill_decode_caches(h, mb_type); //FIXME check what is needed and what not ... + } + ff_h264_pred_direct_motion(h, &mb_type); + mb_type|= MB_TYPE_SKIP; + } + else + { + mb_type|= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P1L0|MB_TYPE_SKIP; + + fill_decode_neighbors(h, mb_type); + pred_pskip_motion(h); + } + + write_back_motion(h, mb_type); + s->current_picture.f.mb_type[mb_xy] = mb_type; + s->current_picture.f.qscale_table[mb_xy] = s->qscale; + h->slice_table[ mb_xy ]= h->slice_num; + h->prev_mb_skipped= 1; } #endif /* AVCODEC_H264_MVPRED_H */