[FFmpeg-cvslog] h264: move fill_decode_neighbors()/fill_decode_caches() to h264_mvpred.h
Diego Biurrun
git at videolan.org
Thu Jul 14 21:27:29 CEST 2011
ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Wed Jul 13 21:51:23 2011 +0200| [806212498ae6b333d0c85dbc9c750580da7c6838] | committer: Diego Biurrun
h264: move fill_decode_neighbors()/fill_decode_caches() to h264_mvpred.h
This fixes a bunch of unused function warnings.
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=806212498ae6b333d0c85dbc9c750580da7c6838
---
libavcodec/h264.h | 418 ----------------------------------------------
libavcodec/h264_mvpred.h | 418 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 418 insertions(+), 418 deletions(-)
diff --git a/libavcodec/h264.h b/libavcodec/h264.h
index 95b4715..122a54a 100644
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@@ -770,424 +770,6 @@ static av_always_inline int get_chroma_qp(H264Context *h, int t, int qscale){
return h->pps.chroma_qp_table[t][qscale];
}
-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(CHROMA444){
- 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{
- 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; list<h->list_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)*0x01010101);
- }
-
- 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]);
-}
-
/**
* gets the predicted intra4x4 prediction mode.
*/
diff --git a/libavcodec/h264_mvpred.h b/libavcodec/h264_mvpred.h
index 52c0323..4751928 100644
--- a/libavcodec/h264_mvpred.h
+++ b/libavcodec/h264_mvpred.h
@@ -327,6 +327,424 @@ zeromv:
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(CHROMA444){
+ 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{
+ 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; list<h->list_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)*0x01010101);
+ }
+
+ 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
*/
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