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ffmpeg.wasm-core
Commit a15e68de authored by Michael Niedermayer's avatar Michael Niedermayer
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bitstream changes to match JM7.2 

Originally committed as revision 2073 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent e70fcf07
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Showing with 36 additions and 45 deletions
libavcodec/h264.c
View file @ a15e68de
......@@ -59,9 +59,6 @@ typedef struct SPS{
int profile_idc;
int level_idc;
int multiple_slice_groups; ///< more_than_one_slice_group_allowed_flag
int arbitrary_slice_order; ///< arbitrary_slice_order_allowed_flag
int redundant_slices; ///< redundant_slices_allowed_flag
int log2_max_frame_num; ///< log2_max_frame_num_minus4 + 4
int poc_type; ///< pic_order_cnt_type
int log2_max_poc_lsb; ///< log2_max_pic_order_cnt_lsb_minus4
......@@ -70,12 +67,17 @@ typedef struct SPS{
int offset_for_top_to_bottom_field;
int poc_cycle_length; ///< num_ref_frames_in_pic_order_cnt_cycle
int ref_frame_count; ///< num_ref_frames
int required_frame_num_update_behaviour_flag;
int gaps_in_frame_num_allowed_flag;
int mb_width; ///< frame_width_in_mbs_minus1 + 1
int mb_height; ///< frame_height_in_mbs_minus1 + 1
int frame_mbs_only_flag;
int mb_aff; ///<mb_adaptive_frame_field_flag
int direct_8x8_inference_flag;
int crop; ///< frame_cropping_flag
int crop_left; ///< frame_cropping_rect_left_offset
int crop_right; ///< frame_cropping_rect_right_offset
int crop_top; ///< frame_cropping_rect_top_offset
int crop_bottom; ///< frame_cropping_rect_bottom_offset
int vui_parameters_present_flag;
int sar_width;
int sar_height;
......@@ -100,11 +102,6 @@ typedef struct PPS{
int deblocking_filter_parameters_present; ///< deblocking_filter_parameters_present_flag
int constrained_intra_pred; ///< constrained_intra_pred_flag
int redundant_pic_cnt_present; ///< redundant_pic_cnt_present_flag
int crop; ///< frame_cropping_flag
int crop_left; ///< frame_cropping_rect_left_offset
int crop_right; ///< frame_cropping_rect_right_offset
int crop_top; ///< frame_cropping_rect_top_offset
int crop_bottom; ///< frame_cropping_rect_bottom_offset
}PPS;
/**
......@@ -789,7 +786,6 @@ static inline void pred_motion(H264Context * const h, int n, int part_width, int
diagonal_ref= fetch_diagonal_mv(h, &C, index8, list, part_width);
match_count= (diagonal_ref==ref) + (top_ref==ref) + (left_ref==ref);
if(match_count > 1){ //most common
*mx= mid_pred(A[0], B[0], C[0]);
*my= mid_pred(A[1], B[1], C[1]);
......@@ -2876,16 +2872,12 @@ static int decode_slice_header(H264Context *h){
s->mb_x = first_mb_in_slice % s->mb_width;
s->mb_y = first_mb_in_slice / s->mb_width; //FIXME AFFW
s->width = 16*s->mb_width - 2*(h->pps.crop_left + h->pps.crop_right );
s->width = 16*s->mb_width - 2*(h->sps.crop_left + h->sps.crop_right );
if(h->sps.frame_mbs_only_flag)
s->height= 16*s->mb_height - 2*(h->pps.crop_top + h->pps.crop_bottom);
s->height= 16*s->mb_height - 2*(h->sps.crop_top + h->sps.crop_bottom);
else
s->height= 16*s->mb_height - 4*(h->pps.crop_top + h->pps.crop_bottom); //FIXME recheck
s->height= 16*s->mb_height - 4*(h->sps.crop_top + h->sps.crop_bottom); //FIXME recheck
if(h->pps.crop_left || h->pps.crop_top){
fprintf(stderr, "insane croping not completly supported, this could look slightly wrong ...\n");
}
if(s->aspected_height) //FIXME emms at end of slice ?
new_aspect= h->sps.sar_width*s->width / (float)(s->height*h->sps.sar_height);
else
......@@ -3807,28 +3799,23 @@ static inline int decode_vui_parameters(H264Context *h, SPS *sps){
static inline int decode_seq_parameter_set(H264Context *h){
MpegEncContext * const s = &h->s;
int profile_idc, level_idc, multiple_slice_groups, arbitrary_slice_order, redundant_slices;
int profile_idc, level_idc;
int sps_id, i;
SPS *sps;
profile_idc= get_bits(&s->gb, 8);
get_bits1(&s->gb); //constraint_set0_flag
get_bits1(&s->gb); //constraint_set1_flag
get_bits1(&s->gb); //constraint_set2_flag
get_bits(&s->gb, 5); // reserved
level_idc= get_bits(&s->gb, 8);
multiple_slice_groups= get_bits1(&s->gb);
arbitrary_slice_order= get_bits1(&s->gb);
redundant_slices= get_bits1(&s->gb);
sps_id= get_ue_golomb(&s->gb);
sps= &h->sps_buffer[ sps_id ];
sps->profile_idc= profile_idc;
sps->level_idc= level_idc;
sps->multiple_slice_groups= multiple_slice_groups;
sps->arbitrary_slice_order= arbitrary_slice_order;
sps->redundant_slices= redundant_slices;
sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
sps->poc_type= get_ue_golomb(&s->gb);
if(sps->poc_type == 0){ //FIXME #define
......@@ -3848,7 +3835,7 @@ static inline int decode_seq_parameter_set(H264Context *h){
}
sps->ref_frame_count= get_ue_golomb(&s->gb);
sps->required_frame_num_update_behaviour_flag= get_bits1(&s->gb);
sps->gaps_in_frame_num_allowed_flag= get_bits1(&s->gb);
sps->mb_width= get_ue_golomb(&s->gb) + 1;
sps->mb_height= get_ue_golomb(&s->gb) + 1;
sps->frame_mbs_only_flag= get_bits1(&s->gb);
......@@ -3859,18 +3846,36 @@ static inline int decode_seq_parameter_set(H264Context *h){
sps->direct_8x8_inference_flag= get_bits1(&s->gb);
sps->crop= get_bits1(&s->gb);
if(sps->crop){
sps->crop_left = get_ue_golomb(&s->gb);
sps->crop_right = get_ue_golomb(&s->gb);
sps->crop_top = get_ue_golomb(&s->gb);
sps->crop_bottom= get_ue_golomb(&s->gb);
if(sps->crop_left || sps->crop_top){
fprintf(stderr, "insane croping not completly supported, this could look slightly wrong ...\n");
}
}else{
sps->crop_left =
sps->crop_right =
sps->crop_top =
sps->crop_bottom= 0;
}
sps->vui_parameters_present_flag= get_bits1(&s->gb);
if( sps->vui_parameters_present_flag )
decode_vui_parameters(h, sps);
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
printf("sps:%d profile:%d/%d poc:%d ref:%d %dx%d %s %s %s\n",
printf("sps:%d profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s\n",
sps_id, sps->profile_idc, sps->level_idc,
sps->poc_type,
sps->ref_frame_count,
sps->mb_width, sps->mb_height,
sps->frame_mbs_only_flag ? "FRM" : (sps->mb_aff ? "MB-AFF" : "PIC-AFF"),
sps->direct_8x8_inference_flag ? "8B8" : "",
sps->crop_left, sps->crop_right,
sps->crop_top, sps->crop_bottom,
sps->vui_parameters_present_flag ? "VUI" : ""
);
}
......@@ -3938,21 +3943,9 @@ fprintf(stderr, "FMO not supported\n");
pps->deblocking_filter_parameters_present= get_bits1(&s->gb);
pps->constrained_intra_pred= get_bits1(&s->gb);
pps->redundant_pic_cnt_present = get_bits1(&s->gb);
pps->crop= get_bits1(&s->gb);
if(pps->crop){
pps->crop_left = get_ue_golomb(&s->gb);
pps->crop_right = get_ue_golomb(&s->gb);
pps->crop_top = get_ue_golomb(&s->gb);
pps->crop_bottom= get_ue_golomb(&s->gb);
}else{
pps->crop_left =
pps->crop_right =
pps->crop_top =
pps->crop_bottom= 0;
}
if(s->avctx->debug&FF_DEBUG_PICT_INFO){
printf("pps:%d sps:%d %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d %s %s %s crop:%d/%d/%d/%d\n",
printf("pps:%d sps:%d %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d %s %s %s\n",
pps_id, pps->sps_id,
pps->cabac ? "CABAC" : "CAVLC",
pps->slice_group_count,
......@@ -3961,9 +3954,7 @@ fprintf(stderr, "FMO not supported\n");
pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset,
pps->deblocking_filter_parameters_present ? "LPAR" : "",
pps->constrained_intra_pred ? "CONSTR" : "",
pps->redundant_pic_cnt_present ? "REDU" : "",
pps->crop_left, pps->crop_right,
pps->crop_top, pps->crop_bottom
pps->redundant_pic_cnt_present ? "REDU" : ""
);
}
......
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