* H.26L/H.264/AVC/JVT/14496-10/... parameter set decoding
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
- * 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
*/
* @author Michael Niedermayer <michaelni@gmx.at>
*/
-#include "libavcore/imgutils.h"
+#include "libavutil/imgutils.h"
#include "internal.h"
-#include "dsputil.h"
#include "avcodec.h"
#include "h264.h"
#include "h264data.h" //FIXME FIXME FIXME (just for zigzag_scan)
//#undef NDEBUG
#include <assert.h>
+#define MAX_LOG2_MAX_FRAME_NUM (12 + 4)
+#define MIN_LOG2_MAX_FRAME_NUM 4
+
static const AVRational pixel_aspect[17]={
{0, 1},
{1, 1},
{2, 1},
};
-const uint8_t ff_h264_chroma_qp[52]={
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,
- 12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,
- 28,29,29,30,31,32,32,33,34,34,35,35,36,36,37,37,
- 37,38,38,38,39,39,39,39
+#define QP(qP,depth) ( (qP)+6*((depth)-8) )
+
+#define CHROMA_QP_TABLE_END(d) \
+ QP(0,d), QP(1,d), QP(2,d), QP(3,d), QP(4,d), QP(5,d),\
+ QP(6,d), QP(7,d), QP(8,d), QP(9,d), QP(10,d), QP(11,d),\
+ QP(12,d), QP(13,d), QP(14,d), QP(15,d), QP(16,d), QP(17,d),\
+ QP(18,d), QP(19,d), QP(20,d), QP(21,d), QP(22,d), QP(23,d),\
+ QP(24,d), QP(25,d), QP(26,d), QP(27,d), QP(28,d), QP(29,d),\
+ QP(29,d), QP(30,d), QP(31,d), QP(32,d), QP(32,d), QP(33,d),\
+ QP(34,d), QP(34,d), QP(35,d), QP(35,d), QP(36,d), QP(36,d),\
+ QP(37,d), QP(37,d), QP(37,d), QP(38,d), QP(38,d), QP(38,d),\
+ QP(39,d), QP(39,d), QP(39,d), QP(39,d)
+
+const uint8_t ff_h264_chroma_qp[3][QP_MAX_NUM+1] = {
+ {
+ CHROMA_QP_TABLE_END(8)
+ },
+ {
+ 0, 1, 2, 3, 4, 5,
+ CHROMA_QP_TABLE_END(9)
+ },
+ {
+ 0, 1, 2, 3, 4, 5,
+ 6, 7, 8, 9, 10, 11,
+ CHROMA_QP_TABLE_END(10)
+ },
};
static const uint8_t default_scaling4[2][16]={
}};
static inline int decode_hrd_parameters(H264Context *h, SPS *sps){
- MpegEncContext * const s = &h->s;
int cpb_count, i;
- cpb_count = get_ue_golomb_31(&s->gb) + 1;
+ cpb_count = get_ue_golomb_31(&h->gb) + 1;
if(cpb_count > 32U){
- av_log(h->s.avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count);
+ av_log(h->avctx, AV_LOG_ERROR, "cpb_count %d invalid\n", cpb_count);
return -1;
}
- get_bits(&s->gb, 4); /* bit_rate_scale */
- get_bits(&s->gb, 4); /* cpb_size_scale */
+ get_bits(&h->gb, 4); /* bit_rate_scale */
+ get_bits(&h->gb, 4); /* cpb_size_scale */
for(i=0; i<cpb_count; i++){
- get_ue_golomb(&s->gb); /* bit_rate_value_minus1 */
- get_ue_golomb(&s->gb); /* cpb_size_value_minus1 */
- get_bits1(&s->gb); /* cbr_flag */
+ get_ue_golomb_long(&h->gb); /* bit_rate_value_minus1 */
+ get_ue_golomb_long(&h->gb); /* cpb_size_value_minus1 */
+ get_bits1(&h->gb); /* cbr_flag */
}
- sps->initial_cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
- sps->cpb_removal_delay_length = get_bits(&s->gb, 5) + 1;
- sps->dpb_output_delay_length = get_bits(&s->gb, 5) + 1;
- sps->time_offset_length = get_bits(&s->gb, 5);
+ sps->initial_cpb_removal_delay_length = get_bits(&h->gb, 5) + 1;
+ sps->cpb_removal_delay_length = get_bits(&h->gb, 5) + 1;
+ sps->dpb_output_delay_length = get_bits(&h->gb, 5) + 1;
+ sps->time_offset_length = get_bits(&h->gb, 5);
sps->cpb_cnt = cpb_count;
return 0;
}
static inline int decode_vui_parameters(H264Context *h, SPS *sps){
- MpegEncContext * const s = &h->s;
int aspect_ratio_info_present_flag;
unsigned int aspect_ratio_idc;
- aspect_ratio_info_present_flag= get_bits1(&s->gb);
+ aspect_ratio_info_present_flag= get_bits1(&h->gb);
if( aspect_ratio_info_present_flag ) {
- aspect_ratio_idc= get_bits(&s->gb, 8);
+ aspect_ratio_idc= get_bits(&h->gb, 8);
if( aspect_ratio_idc == EXTENDED_SAR ) {
- sps->sar.num= get_bits(&s->gb, 16);
- sps->sar.den= get_bits(&s->gb, 16);
+ sps->sar.num= get_bits(&h->gb, 16);
+ sps->sar.den= get_bits(&h->gb, 16);
}else if(aspect_ratio_idc < FF_ARRAY_ELEMS(pixel_aspect)){
sps->sar= pixel_aspect[aspect_ratio_idc];
}else{
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
+ av_log(h->avctx, AV_LOG_ERROR, "illegal aspect ratio\n");
return -1;
}
}else{
}
// s->avctx->aspect_ratio= sar_width*s->width / (float)(s->height*sar_height);
- if(get_bits1(&s->gb)){ /* overscan_info_present_flag */
- get_bits1(&s->gb); /* overscan_appropriate_flag */
+ if(get_bits1(&h->gb)){ /* overscan_info_present_flag */
+ get_bits1(&h->gb); /* overscan_appropriate_flag */
}
- sps->video_signal_type_present_flag = get_bits1(&s->gb);
+ sps->video_signal_type_present_flag = get_bits1(&h->gb);
if(sps->video_signal_type_present_flag){
- get_bits(&s->gb, 3); /* video_format */
- sps->full_range = get_bits1(&s->gb); /* video_full_range_flag */
+ get_bits(&h->gb, 3); /* video_format */
+ sps->full_range = get_bits1(&h->gb); /* video_full_range_flag */
- sps->colour_description_present_flag = get_bits1(&s->gb);
+ sps->colour_description_present_flag = get_bits1(&h->gb);
if(sps->colour_description_present_flag){
- sps->color_primaries = get_bits(&s->gb, 8); /* colour_primaries */
- sps->color_trc = get_bits(&s->gb, 8); /* transfer_characteristics */
- sps->colorspace = get_bits(&s->gb, 8); /* matrix_coefficients */
+ sps->color_primaries = get_bits(&h->gb, 8); /* colour_primaries */
+ sps->color_trc = get_bits(&h->gb, 8); /* transfer_characteristics */
+ sps->colorspace = get_bits(&h->gb, 8); /* matrix_coefficients */
if (sps->color_primaries >= AVCOL_PRI_NB)
sps->color_primaries = AVCOL_PRI_UNSPECIFIED;
if (sps->color_trc >= AVCOL_TRC_NB)
}
}
- if(get_bits1(&s->gb)){ /* chroma_location_info_present_flag */
- s->avctx->chroma_sample_location = get_ue_golomb(&s->gb)+1; /* chroma_sample_location_type_top_field */
- get_ue_golomb(&s->gb); /* chroma_sample_location_type_bottom_field */
+ if(get_bits1(&h->gb)){ /* chroma_location_info_present_flag */
+ h->avctx->chroma_sample_location = get_ue_golomb(&h->gb)+1; /* chroma_sample_location_type_top_field */
+ get_ue_golomb(&h->gb); /* chroma_sample_location_type_bottom_field */
}
- sps->timing_info_present_flag = get_bits1(&s->gb);
+ sps->timing_info_present_flag = get_bits1(&h->gb);
if(sps->timing_info_present_flag){
- sps->num_units_in_tick = get_bits_long(&s->gb, 32);
- sps->time_scale = get_bits_long(&s->gb, 32);
+ sps->num_units_in_tick = get_bits_long(&h->gb, 32);
+ sps->time_scale = get_bits_long(&h->gb, 32);
if(!sps->num_units_in_tick || !sps->time_scale){
- av_log(h->s.avctx, AV_LOG_ERROR, "time_scale/num_units_in_tick invalid or unsupported (%d/%d)\n", sps->time_scale, sps->num_units_in_tick);
+ av_log(h->avctx, AV_LOG_ERROR, "time_scale/num_units_in_tick invalid or unsupported (%d/%d)\n", sps->time_scale, sps->num_units_in_tick);
return -1;
}
- sps->fixed_frame_rate_flag = get_bits1(&s->gb);
+ sps->fixed_frame_rate_flag = get_bits1(&h->gb);
}
- sps->nal_hrd_parameters_present_flag = get_bits1(&s->gb);
+ sps->nal_hrd_parameters_present_flag = get_bits1(&h->gb);
if(sps->nal_hrd_parameters_present_flag)
if(decode_hrd_parameters(h, sps) < 0)
return -1;
- sps->vcl_hrd_parameters_present_flag = get_bits1(&s->gb);
+ sps->vcl_hrd_parameters_present_flag = get_bits1(&h->gb);
if(sps->vcl_hrd_parameters_present_flag)
if(decode_hrd_parameters(h, sps) < 0)
return -1;
if(sps->nal_hrd_parameters_present_flag || sps->vcl_hrd_parameters_present_flag)
- get_bits1(&s->gb); /* low_delay_hrd_flag */
- sps->pic_struct_present_flag = get_bits1(&s->gb);
+ get_bits1(&h->gb); /* low_delay_hrd_flag */
+ sps->pic_struct_present_flag = get_bits1(&h->gb);
- sps->bitstream_restriction_flag = get_bits1(&s->gb);
+ sps->bitstream_restriction_flag = get_bits1(&h->gb);
if(sps->bitstream_restriction_flag){
- get_bits1(&s->gb); /* motion_vectors_over_pic_boundaries_flag */
- get_ue_golomb(&s->gb); /* max_bytes_per_pic_denom */
- get_ue_golomb(&s->gb); /* max_bits_per_mb_denom */
- get_ue_golomb(&s->gb); /* log2_max_mv_length_horizontal */
- get_ue_golomb(&s->gb); /* log2_max_mv_length_vertical */
- sps->num_reorder_frames= get_ue_golomb(&s->gb);
- get_ue_golomb(&s->gb); /*max_dec_frame_buffering*/
-
- if(s->gb.size_in_bits < get_bits_count(&s->gb)){
- av_log(h->s.avctx, AV_LOG_ERROR, "Overread VUI by %d bits\n", get_bits_count(&s->gb) - s->gb.size_in_bits);
+ get_bits1(&h->gb); /* motion_vectors_over_pic_boundaries_flag */
+ get_ue_golomb(&h->gb); /* max_bytes_per_pic_denom */
+ get_ue_golomb(&h->gb); /* max_bits_per_mb_denom */
+ get_ue_golomb(&h->gb); /* log2_max_mv_length_horizontal */
+ get_ue_golomb(&h->gb); /* log2_max_mv_length_vertical */
+ sps->num_reorder_frames= get_ue_golomb(&h->gb);
+ get_ue_golomb(&h->gb); /*max_dec_frame_buffering*/
+
+ if (get_bits_left(&h->gb) < 0) {
sps->num_reorder_frames=0;
sps->bitstream_restriction_flag= 0;
}
if(sps->num_reorder_frames > 16U /*max_dec_frame_buffering || max_dec_frame_buffering > 16*/){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", sps->num_reorder_frames);
+ av_log(h->avctx, AV_LOG_ERROR, "illegal num_reorder_frames %d\n", sps->num_reorder_frames);
return -1;
}
}
+ if (get_bits_left(&h->gb) < 0) {
+ av_log(h->avctx, AV_LOG_ERROR, "Overread VUI by %d bits\n", -get_bits_left(&h->gb));
+ return AVERROR_INVALIDDATA;
+ }
return 0;
}
static void decode_scaling_list(H264Context *h, uint8_t *factors, int size,
const uint8_t *jvt_list, const uint8_t *fallback_list){
- MpegEncContext * const s = &h->s;
int i, last = 8, next = 8;
const uint8_t *scan = size == 16 ? zigzag_scan : ff_zigzag_direct;
- if(!get_bits1(&s->gb)) /* matrix not written, we use the predicted one */
+ if(!get_bits1(&h->gb)) /* matrix not written, we use the predicted one */
memcpy(factors, fallback_list, size*sizeof(uint8_t));
else
for(i=0;i<size;i++){
if(next)
- next = (last + get_se_golomb(&s->gb)) & 0xff;
+ next = (last + get_se_golomb(&h->gb)) & 0xff;
if(!i && !next){ /* matrix not written, we use the preset one */
memcpy(factors, jvt_list, size*sizeof(uint8_t));
break;
static void decode_scaling_matrices(H264Context *h, SPS *sps, PPS *pps, int is_sps,
uint8_t (*scaling_matrix4)[16], uint8_t (*scaling_matrix8)[64]){
- MpegEncContext * const s = &h->s;
int fallback_sps = !is_sps && sps->scaling_matrix_present;
const uint8_t *fallback[4] = {
fallback_sps ? sps->scaling_matrix4[0] : default_scaling4[0],
fallback_sps ? sps->scaling_matrix4[3] : default_scaling4[1],
fallback_sps ? sps->scaling_matrix8[0] : default_scaling8[0],
- fallback_sps ? sps->scaling_matrix8[1] : default_scaling8[1]
+ fallback_sps ? sps->scaling_matrix8[3] : default_scaling8[1]
};
- if(get_bits1(&s->gb)){
+ if(get_bits1(&h->gb)){
sps->scaling_matrix_present |= is_sps;
decode_scaling_list(h,scaling_matrix4[0],16,default_scaling4[0],fallback[0]); // Intra, Y
decode_scaling_list(h,scaling_matrix4[1],16,default_scaling4[0],scaling_matrix4[0]); // Intra, Cr
decode_scaling_list(h,scaling_matrix4[5],16,default_scaling4[1],scaling_matrix4[4]); // Inter, Cb
if(is_sps || pps->transform_8x8_mode){
decode_scaling_list(h,scaling_matrix8[0],64,default_scaling8[0],fallback[2]); // Intra, Y
- decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[1],fallback[3]); // Inter, Y
+ if(sps->chroma_format_idc == 3){
+ decode_scaling_list(h,scaling_matrix8[1],64,default_scaling8[0],scaling_matrix8[0]); // Intra, Cr
+ decode_scaling_list(h,scaling_matrix8[2],64,default_scaling8[0],scaling_matrix8[1]); // Intra, Cb
+ }
+ decode_scaling_list(h,scaling_matrix8[3],64,default_scaling8[1],fallback[3]); // Inter, Y
+ if(sps->chroma_format_idc == 3){
+ decode_scaling_list(h,scaling_matrix8[4],64,default_scaling8[1],scaling_matrix8[3]); // Inter, Cr
+ decode_scaling_list(h,scaling_matrix8[5],64,default_scaling8[1],scaling_matrix8[4]); // Inter, Cb
+ }
}
}
}
int ff_h264_decode_seq_parameter_set(H264Context *h){
- MpegEncContext * const s = &h->s;
int profile_idc, level_idc, constraint_set_flags = 0;
unsigned int sps_id;
- int i;
+ int i, log2_max_frame_num_minus4;
SPS *sps;
- profile_idc= get_bits(&s->gb, 8);
- constraint_set_flags |= get_bits1(&s->gb) << 0; //constraint_set0_flag
- constraint_set_flags |= get_bits1(&s->gb) << 1; //constraint_set1_flag
- constraint_set_flags |= get_bits1(&s->gb) << 2; //constraint_set2_flag
- constraint_set_flags |= get_bits1(&s->gb) << 3; //constraint_set3_flag
- get_bits(&s->gb, 4); // reserved
- level_idc= get_bits(&s->gb, 8);
- sps_id= get_ue_golomb_31(&s->gb);
+ profile_idc= get_bits(&h->gb, 8);
+ constraint_set_flags |= get_bits1(&h->gb) << 0; //constraint_set0_flag
+ constraint_set_flags |= get_bits1(&h->gb) << 1; //constraint_set1_flag
+ constraint_set_flags |= get_bits1(&h->gb) << 2; //constraint_set2_flag
+ constraint_set_flags |= get_bits1(&h->gb) << 3; //constraint_set3_flag
+ get_bits(&h->gb, 4); // reserved
+ level_idc= get_bits(&h->gb, 8);
+ sps_id= get_ue_golomb_31(&h->gb);
if(sps_id >= MAX_SPS_COUNT) {
- av_log(h->s.avctx, AV_LOG_ERROR, "sps_id (%d) out of range\n", sps_id);
+ av_log(h->avctx, AV_LOG_ERROR, "sps_id (%d) out of range\n", sps_id);
return -1;
}
sps= av_mallocz(sizeof(SPS));
memset(sps->scaling_matrix8, 16, sizeof(sps->scaling_matrix8));
sps->scaling_matrix_present = 0;
- if(sps->profile_idc >= 100){ //high profile
- sps->chroma_format_idc= get_ue_golomb_31(&s->gb);
- if(sps->chroma_format_idc == 3)
- sps->residual_color_transform_flag = get_bits1(&s->gb);
- sps->bit_depth_luma = get_ue_golomb(&s->gb) + 8;
- sps->bit_depth_chroma = get_ue_golomb(&s->gb) + 8;
- sps->transform_bypass = get_bits1(&s->gb);
+ if (sps->profile_idc == 100 || sps->profile_idc == 110 ||
+ sps->profile_idc == 122 || sps->profile_idc == 244 ||
+ sps->profile_idc == 44 || sps->profile_idc == 83 ||
+ sps->profile_idc == 86 || sps->profile_idc == 118 ||
+ sps->profile_idc == 128 || sps->profile_idc == 144) {
+ sps->chroma_format_idc= get_ue_golomb_31(&h->gb);
+ if(sps->chroma_format_idc > 3) {
+ av_log(h->avctx, AV_LOG_ERROR, "chroma_format_idc (%u) out of range\n", sps->chroma_format_idc);
+ goto fail;
+ } else if(sps->chroma_format_idc == 3) {
+ sps->residual_color_transform_flag = get_bits1(&h->gb);
+ }
+ sps->bit_depth_luma = get_ue_golomb(&h->gb) + 8;
+ sps->bit_depth_chroma = get_ue_golomb(&h->gb) + 8;
+ sps->transform_bypass = get_bits1(&h->gb);
decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8);
}else{
sps->chroma_format_idc= 1;
sps->bit_depth_chroma = 8;
}
- sps->log2_max_frame_num= get_ue_golomb(&s->gb) + 4;
- sps->poc_type= get_ue_golomb_31(&s->gb);
+ log2_max_frame_num_minus4 = get_ue_golomb(&h->gb);
+ if (log2_max_frame_num_minus4 < MIN_LOG2_MAX_FRAME_NUM - 4 ||
+ log2_max_frame_num_minus4 > MAX_LOG2_MAX_FRAME_NUM - 4) {
+ av_log(h->avctx, AV_LOG_ERROR,
+ "log2_max_frame_num_minus4 out of range (0-12): %d\n",
+ log2_max_frame_num_minus4);
+ goto fail;
+ }
+ sps->log2_max_frame_num = log2_max_frame_num_minus4 + 4;
+
+ sps->poc_type= get_ue_golomb_31(&h->gb);
if(sps->poc_type == 0){ //FIXME #define
- sps->log2_max_poc_lsb= get_ue_golomb(&s->gb) + 4;
+ sps->log2_max_poc_lsb= get_ue_golomb(&h->gb) + 4;
} else if(sps->poc_type == 1){//FIXME #define
- sps->delta_pic_order_always_zero_flag= get_bits1(&s->gb);
- sps->offset_for_non_ref_pic= get_se_golomb(&s->gb);
- sps->offset_for_top_to_bottom_field= get_se_golomb(&s->gb);
- sps->poc_cycle_length = get_ue_golomb(&s->gb);
+ sps->delta_pic_order_always_zero_flag= get_bits1(&h->gb);
+ sps->offset_for_non_ref_pic= get_se_golomb(&h->gb);
+ sps->offset_for_top_to_bottom_field= get_se_golomb(&h->gb);
+ sps->poc_cycle_length = get_ue_golomb(&h->gb);
if((unsigned)sps->poc_cycle_length >= FF_ARRAY_ELEMS(sps->offset_for_ref_frame)){
- av_log(h->s.avctx, AV_LOG_ERROR, "poc_cycle_length overflow %u\n", sps->poc_cycle_length);
+ av_log(h->avctx, AV_LOG_ERROR, "poc_cycle_length overflow %u\n", sps->poc_cycle_length);
goto fail;
}
for(i=0; i<sps->poc_cycle_length; i++)
- sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb);
+ sps->offset_for_ref_frame[i]= get_se_golomb(&h->gb);
}else if(sps->poc_type != 2){
- av_log(h->s.avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
+ av_log(h->avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type);
goto fail;
}
- sps->ref_frame_count= get_ue_golomb_31(&s->gb);
+ sps->ref_frame_count= get_ue_golomb_31(&h->gb);
if(sps->ref_frame_count > MAX_PICTURE_COUNT-2 || sps->ref_frame_count >= 32U){
- av_log(h->s.avctx, AV_LOG_ERROR, "too many reference frames\n");
+ av_log(h->avctx, AV_LOG_ERROR, "too many reference frames\n");
goto fail;
}
- 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->gaps_in_frame_num_allowed_flag= get_bits1(&h->gb);
+ sps->mb_width = get_ue_golomb(&h->gb) + 1;
+ sps->mb_height= get_ue_golomb(&h->gb) + 1;
if((unsigned)sps->mb_width >= INT_MAX/16 || (unsigned)sps->mb_height >= INT_MAX/16 ||
- av_image_check_size(16*sps->mb_width, 16*sps->mb_height, 0, h->s.avctx)){
- av_log(h->s.avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
+ av_image_check_size(16*sps->mb_width, 16*sps->mb_height, 0, h->avctx)){
+ av_log(h->avctx, AV_LOG_ERROR, "mb_width/height overflow\n");
goto fail;
}
- sps->frame_mbs_only_flag= get_bits1(&s->gb);
+ sps->frame_mbs_only_flag= get_bits1(&h->gb);
if(!sps->frame_mbs_only_flag)
- sps->mb_aff= get_bits1(&s->gb);
+ sps->mb_aff= get_bits1(&h->gb);
else
sps->mb_aff= 0;
- sps->direct_8x8_inference_flag= get_bits1(&s->gb);
+ sps->direct_8x8_inference_flag= get_bits1(&h->gb);
if(!sps->frame_mbs_only_flag && !sps->direct_8x8_inference_flag){
- av_log(h->s.avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
+ av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n");
goto fail;
}
#ifndef ALLOW_INTERLACE
if(sps->mb_aff)
- av_log(h->s.avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n");
+ av_log(h->avctx, AV_LOG_ERROR, "MBAFF support not included; enable it at compile-time.\n");
#endif
- sps->crop= get_bits1(&s->gb);
+ sps->crop= get_bits1(&h->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);
+ int crop_vertical_limit = sps->chroma_format_idc & 2 ? 16 : 8;
+ int crop_horizontal_limit = sps->chroma_format_idc == 3 ? 16 : 8;
+ sps->crop_left = get_ue_golomb(&h->gb);
+ sps->crop_right = get_ue_golomb(&h->gb);
+ sps->crop_top = get_ue_golomb(&h->gb);
+ sps->crop_bottom= get_ue_golomb(&h->gb);
+ if (h->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
+ av_log(h->avctx, AV_LOG_DEBUG,
+ "discarding sps cropping, "
+ "original values are l:%u r:%u t:%u b:%u\n",
+ sps->crop_left,
+ sps->crop_right,
+ sps->crop_top,
+ sps->crop_bottom);
+
+ sps->crop_left =
+ sps->crop_right =
+ sps->crop_top =
+ sps->crop_bottom = 0;
+ }
if(sps->crop_left || sps->crop_top){
- av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ...\n");
+ av_log(h->avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ...\n");
}
- if(sps->crop_right >= 8 || sps->crop_bottom >= 8){
- av_log(h->s.avctx, AV_LOG_ERROR, "brainfart cropping not supported, this could look slightly wrong ...\n");
+ if(sps->crop_right >= crop_horizontal_limit || sps->crop_bottom >= crop_vertical_limit){
+ av_log(h->avctx, AV_LOG_ERROR, "brainfart cropping not supported, this could look slightly wrong ...\n");
}
}else{
sps->crop_left =
sps->crop_bottom= 0;
}
- sps->vui_parameters_present_flag= get_bits1(&s->gb);
+ sps->vui_parameters_present_flag= get_bits1(&h->gb);
if( sps->vui_parameters_present_flag )
if (decode_vui_parameters(h, sps) < 0)
goto fail;
if(!sps->sar.den)
sps->sar.den= 1;
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s %s %d/%d\n",
+ if(h->avctx->debug&FF_DEBUG_PICT_INFO){
+ static const char csp[4][5] = { "Gray", "420", "422", "444" };
+ av_log(h->avctx, AV_LOG_DEBUG, "sps:%u profile:%d/%d poc:%d ref:%d %dx%d %s %s crop:%d/%d/%d/%d %s %s %d/%d\n",
sps_id, sps->profile_idc, sps->level_idc,
sps->poc_type,
sps->ref_frame_count,
sps->crop_left, sps->crop_right,
sps->crop_top, sps->crop_bottom,
sps->vui_parameters_present_flag ? "VUI" : "",
- ((const char*[]){"Gray","420","422","444"})[sps->chroma_format_idc],
+ csp[sps->chroma_format_idc],
sps->timing_info_present_flag ? sps->num_units_in_tick : 0,
sps->timing_info_present_flag ? sps->time_scale : 0
);
}
+ sps->new = 1;
av_free(h->sps_buffers[sps_id]);
- h->sps_buffers[sps_id]= sps;
- h->sps = *sps;
+ h->sps_buffers[sps_id] = sps;
+ h->sps = *sps;
+ h->current_sps_id = sps_id;
+
return 0;
fail:
av_free(sps);
}
static void
-build_qp_table(PPS *pps, int t, int index)
+build_qp_table(PPS *pps, int t, int index, const int depth)
{
int i;
- for(i = 0; i < 52; i++)
- pps->chroma_qp_table[t][i] = ff_h264_chroma_qp[av_clip(i + index, 0, 51)];
+ const int max_qp = 51 + 6*(depth-8);
+ for(i = 0; i < max_qp+1; i++)
+ pps->chroma_qp_table[t][i] = ff_h264_chroma_qp[depth-8][av_clip(i + index, 0, max_qp)];
}
int ff_h264_decode_picture_parameter_set(H264Context *h, int bit_length){
- MpegEncContext * const s = &h->s;
- unsigned int pps_id= get_ue_golomb(&s->gb);
+ unsigned int pps_id= get_ue_golomb(&h->gb);
PPS *pps;
+ const int qp_bd_offset = 6*(h->sps.bit_depth_luma-8);
+ int bits_left;
if(pps_id >= MAX_PPS_COUNT) {
- av_log(h->s.avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id);
+ av_log(h->avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id);
return -1;
+ } else if (h->sps.bit_depth_luma > 10) {
+ av_log(h->avctx, AV_LOG_ERROR, "Unimplemented luma bit depth=%d (max=10)\n", h->sps.bit_depth_luma);
+ return AVERROR_PATCHWELCOME;
}
pps= av_mallocz(sizeof(PPS));
if(pps == NULL)
return -1;
- pps->sps_id= get_ue_golomb_31(&s->gb);
+ pps->sps_id= get_ue_golomb_31(&h->gb);
if((unsigned)pps->sps_id>=MAX_SPS_COUNT || h->sps_buffers[pps->sps_id] == NULL){
- av_log(h->s.avctx, AV_LOG_ERROR, "sps_id out of range\n");
+ av_log(h->avctx, AV_LOG_ERROR, "sps_id out of range\n");
goto fail;
}
- pps->cabac= get_bits1(&s->gb);
- pps->pic_order_present= get_bits1(&s->gb);
- pps->slice_group_count= get_ue_golomb(&s->gb) + 1;
+ pps->cabac= get_bits1(&h->gb);
+ pps->pic_order_present= get_bits1(&h->gb);
+ pps->slice_group_count= get_ue_golomb(&h->gb) + 1;
if(pps->slice_group_count > 1 ){
- pps->mb_slice_group_map_type= get_ue_golomb(&s->gb);
- av_log(h->s.avctx, AV_LOG_ERROR, "FMO not supported\n");
+ pps->mb_slice_group_map_type= get_ue_golomb(&h->gb);
+ av_log(h->avctx, AV_LOG_ERROR, "FMO not supported\n");
switch(pps->mb_slice_group_map_type){
case 0:
#if 0
break;
}
}
- pps->ref_count[0]= get_ue_golomb(&s->gb) + 1;
- pps->ref_count[1]= get_ue_golomb(&s->gb) + 1;
+ pps->ref_count[0]= get_ue_golomb(&h->gb) + 1;
+ pps->ref_count[1]= get_ue_golomb(&h->gb) + 1;
if(pps->ref_count[0]-1 > 32-1 || pps->ref_count[1]-1 > 32-1){
- av_log(h->s.avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
+ av_log(h->avctx, AV_LOG_ERROR, "reference overflow (pps)\n");
goto fail;
}
- pps->weighted_pred= get_bits1(&s->gb);
- pps->weighted_bipred_idc= get_bits(&s->gb, 2);
- pps->init_qp= get_se_golomb(&s->gb) + 26;
- pps->init_qs= get_se_golomb(&s->gb) + 26;
- pps->chroma_qp_index_offset[0]= get_se_golomb(&s->gb);
- 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->weighted_pred= get_bits1(&h->gb);
+ pps->weighted_bipred_idc= get_bits(&h->gb, 2);
+ pps->init_qp= get_se_golomb(&h->gb) + 26 + qp_bd_offset;
+ pps->init_qs= get_se_golomb(&h->gb) + 26 + qp_bd_offset;
+ pps->chroma_qp_index_offset[0]= get_se_golomb(&h->gb);
+ pps->deblocking_filter_parameters_present= get_bits1(&h->gb);
+ pps->constrained_intra_pred= get_bits1(&h->gb);
+ pps->redundant_pic_cnt_present = get_bits1(&h->gb);
pps->transform_8x8_mode= 0;
h->dequant_coeff_pps= -1; //contents of sps/pps can change even if id doesn't, so reinit
memcpy(pps->scaling_matrix4, h->sps_buffers[pps->sps_id]->scaling_matrix4, sizeof(pps->scaling_matrix4));
memcpy(pps->scaling_matrix8, h->sps_buffers[pps->sps_id]->scaling_matrix8, sizeof(pps->scaling_matrix8));
- if(get_bits_count(&s->gb) < bit_length){
- pps->transform_8x8_mode= get_bits1(&s->gb);
+ bits_left = bit_length - get_bits_count(&h->gb);
+ if (bits_left && (bits_left > 8 ||
+ show_bits(&h->gb, bits_left) != 1 << (bits_left - 1))) {
+ pps->transform_8x8_mode= get_bits1(&h->gb);
decode_scaling_matrices(h, h->sps_buffers[pps->sps_id], pps, 0, pps->scaling_matrix4, pps->scaling_matrix8);
- pps->chroma_qp_index_offset[1]= get_se_golomb(&s->gb); //second_chroma_qp_index_offset
+ pps->chroma_qp_index_offset[1]= get_se_golomb(&h->gb); //second_chroma_qp_index_offset
} else {
pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0];
}
- build_qp_table(pps, 0, pps->chroma_qp_index_offset[0]);
- build_qp_table(pps, 1, pps->chroma_qp_index_offset[1]);
+ build_qp_table(pps, 0, pps->chroma_qp_index_offset[0], h->sps.bit_depth_luma);
+ build_qp_table(pps, 1, pps->chroma_qp_index_offset[1], h->sps.bit_depth_luma);
if(pps->chroma_qp_index_offset[0] != pps->chroma_qp_index_offset[1])
pps->chroma_qp_diff= 1;
- if(s->avctx->debug&FF_DEBUG_PICT_INFO){
- av_log(h->s.avctx, AV_LOG_DEBUG, "pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\n",
+ if(h->avctx->debug&FF_DEBUG_PICT_INFO){
+ av_log(h->avctx, AV_LOG_DEBUG, "pps:%u sps:%u %s slice_groups:%d ref:%d/%d %s qp:%d/%d/%d/%d %s %s %s %s\n",
pps_id, pps->sps_id,
pps->cabac ? "CABAC" : "CAVLC",
pps->slice_group_count,
projects / ffmpeg / blobdiff