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-rw-r--r--libavcodec/h264.c118
1 files changed, 93 insertions, 25 deletions
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 1739108d42..05ac927c55 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -482,10 +482,10 @@ static inline void fill_caches(H264Context *h, int mb_type, int for_deblock){
h->intra4x4_pred_mode_cache[7+8*0]= h->intra4x4_pred_mode[top_xy][3];
}else{
int pred;
- if(IS_INTRA16x16(top_type) || (IS_INTER(top_type) && !h->pps.constrained_intra_pred))
- pred= 2;
- else{
+ if(!top_type || (IS_INTER(top_type) && h->pps.constrained_intra_pred))
pred= -1;
+ else{
+ pred= 2;
}
h->intra4x4_pred_mode_cache[4+8*0]=
h->intra4x4_pred_mode_cache[5+8*0]=
@@ -498,10 +498,10 @@ static inline void fill_caches(H264Context *h, int mb_type, int for_deblock){
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= h->intra4x4_pred_mode[left_xy[i]][left_block[1+2*i]];
}else{
int pred;
- if(IS_INTRA16x16(left_type[i]) || (IS_INTER(left_type[i]) && !h->pps.constrained_intra_pred))
- pred= 2;
- else{
+ if(!left_type[i] || (IS_INTER(left_type[i]) && h->pps.constrained_intra_pred))
pred= -1;
+ else{
+ pred= 2;
}
h->intra4x4_pred_mode_cache[3+8*1 + 2*8*i]=
h->intra4x4_pred_mode_cache[3+8*2 + 2*8*i]= pred;
@@ -2739,6 +2739,34 @@ static void hl_decode_mb(H264Context *h){
// dct_offset = s->linesize * 16;
}
+ if (IS_INTRA_PCM(mb_type)) {
+ unsigned int x, y;
+
+ // The pixels are stored in h->mb array in the same order as levels,
+ // copy them in output in the correct order.
+ for(i=0; i<16; i++) {
+ for (y=0; y<4; y++) {
+ for (x=0; x<4; x++) {
+ *(dest_y + h->block_offset[i] + y*linesize + x) = h->mb[i*16+y*4+x];
+ }
+ }
+ }
+ for(i=16; i<16+4; i++) {
+ for (y=0; y<4; y++) {
+ for (x=0; x<4; x++) {
+ *(dest_cb + h->block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x];
+ }
+ }
+ }
+ for(i=20; i<20+4; i++) {
+ for (y=0; y<4; y++) {
+ for (x=0; x<4; x++) {
+ *(dest_cr + h->block_offset[i] + y*uvlinesize + x) = h->mb[i*16+y*4+x];
+ }
+ }
+ }
+ goto deblock;
+ }
if(IS_INTRA(mb_type)){
if(h->deblocking_filter)
xchg_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize, 1);
@@ -2845,6 +2873,7 @@ static void hl_decode_mb(H264Context *h){
}
}
}
+deblock:
if(h->deblocking_filter) {
backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, uvlinesize);
fill_caches(h, mb_type, 1); //FIXME dont fill stuff which isnt used by filter_mb
@@ -3984,38 +4013,39 @@ decode_intra_mb:
h->slice_table[ mb_xy ]= h->slice_num;
if(IS_INTRA_PCM(mb_type)){
- const uint8_t *ptr;
- int x, y;
+ unsigned int x, y;
// we assume these blocks are very rare so we dont optimize it
align_get_bits(&s->gb);
- ptr= s->gb.buffer + get_bits_count(&s->gb);
-
+ // The pixels are stored in the same order as levels in h->mb array.
for(y=0; y<16; y++){
- const int index= 4*(y&3) + 64*(y>>2);
+ const int index= 4*(y&3) + 32*((y>>2)&1) + 128*(y>>3);
for(x=0; x<16; x++){
- h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
+ tprintf("LUMA ICPM LEVEL (%3d)\n", show_bits(&s->gb, 8));
+ h->mb[index + (x&3) + 16*((x>>2)&1) + 64*(x>>3)]= get_bits(&s->gb, 8);
}
}
for(y=0; y<8; y++){
const int index= 256 + 4*(y&3) + 32*(y>>2);
for(x=0; x<8; x++){
- h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
+ tprintf("CHROMA U ICPM LEVEL (%3d)\n", show_bits(&s->gb, 8));
+ h->mb[index + (x&3) + 16*(x>>2)]= get_bits(&s->gb, 8);
}
}
for(y=0; y<8; y++){
const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
for(x=0; x<8; x++){
- h->mb[index + (x&3) + 16*(x>>2)]= *(ptr++);
+ tprintf("CHROMA V ICPM LEVEL (%3d)\n", show_bits(&s->gb, 8));
+ h->mb[index + (x&3) + 16*(x>>2)]= get_bits(&s->gb, 8);
}
}
- skip_bits(&s->gb, 384); //FIXME check /fix the bitstream readers
-
- //FIXME deblock filter, non_zero_count_cache init ...
+ // In deblocking, the quantiser is 0
+ s->current_picture.qscale_table[mb_xy]= 0;
+ h->chroma_qp = get_chroma_qp(h, 0);
+ // All coeffs are presents
memset(h->non_zero_count[mb_xy], 16, 16);
- s->current_picture.qscale_table[mb_xy]= s->qscale;
return 0;
}
@@ -4919,13 +4949,49 @@ decode_intra_mb:
h->slice_table[ mb_xy ]= h->slice_num;
if(IS_INTRA_PCM(mb_type)) {
- /* TODO */
- assert(0);
- h->cbp_table[mb_xy] = 0xf +4*2; //FIXME ?!
- h->cbp_table[mb_xy] |= 0x1C0;
+ const uint8_t *ptr;
+ unsigned int x, y;
+
+ // We assume these blocks are very rare so we dont optimize it.
+ // FIXME The two following lines get the bitstream position in the cabac
+ // decode, I think it should be done by a function in cabac.h (or cabac.c).
+ ptr= h->cabac.bytestream;
+ if (h->cabac.low&0x1) ptr-=CABAC_BITS/8;
+
+ // The pixels are stored in the same order as levels in h->mb array.
+ for(y=0; y<16; y++){
+ const int index= 4*(y&3) + 32*((y>>2)&1) + 128*(y>>3);
+ for(x=0; x<16; x++){
+ tprintf("LUMA ICPM LEVEL (%3d)\n", *ptr);
+ h->mb[index + (x&3) + 16*((x>>2)&1) + 64*(x>>3)]= *ptr++;
+ }
+ }
+ for(y=0; y<8; y++){
+ const int index= 256 + 4*(y&3) + 32*(y>>2);
+ for(x=0; x<8; x++){
+ tprintf("CHROMA U ICPM LEVEL (%3d)\n", *ptr);
+ h->mb[index + (x&3) + 16*(x>>2)]= *ptr++;
+ }
+ }
+ for(y=0; y<8; y++){
+ const int index= 256 + 64 + 4*(y&3) + 32*(y>>2);
+ for(x=0; x<8; x++){
+ tprintf("CHROMA V ICPM LEVEL (%3d)\n", *ptr);
+ h->mb[index + (x&3) + 16*(x>>2)]= *ptr++;
+ }
+ }
+
+ ff_init_cabac_decoder(&h->cabac, ptr, h->cabac.bytestream_end - ptr);
+
+ // All blocks are presents
+ h->cbp_table[mb_xy] = 0x1ef;
h->chroma_pred_mode_table[mb_xy] = 0;
- s->current_picture.qscale_table[mb_xy]= s->qscale;
- return -1;
+ // In deblocking, the quantiser is 0
+ s->current_picture.qscale_table[mb_xy]= 0;
+ h->chroma_qp = get_chroma_qp(h, 0);
+ // All coeffs are presents
+ memset(h->non_zero_count[mb_xy], 16, 16);
+ return 0;
}
fill_caches(h, mb_type, 0);
@@ -5605,7 +5671,9 @@ static void filter_mb( H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8
}
/* Filter edge */
- qp = ( s->qscale + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
+ // Do not use s->qscale as luma quantiser because it has not the same
+ // value in IPCM macroblocks.
+ qp = ( s->current_picture.qscale_table[mb_xy] + s->current_picture.qscale_table[mbn_xy] + 1 ) >> 1;
//tprintf("filter mb:%d/%d dir:%d edge:%d, QPy:%d, QPc:%d, QPcn:%d\n", mb_x, mb_y, dir, edge, qp, h->chroma_qp, s->current_picture.qscale_table[mbn_xy]);
if( dir == 0 ) {
filter_mb_edgev( h, &img_y[4*edge], linesize, bS, qp );
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-05 07:03:33 +0000