/* * 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. * * FFmpeg 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, * 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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file * H.264 / AVC / MPEG4 part10 parameter set decoding. * @author Michael Niedermayer <michaelni@gmx.at> */ #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) #include "golomb.h" //#undef NDEBUG #include <assert.h> static const AVRational pixel_aspect[17]={ {0, 1}, {1, 1}, {12, 11}, {10, 11}, {16, 11}, {40, 33}, {24, 11}, {20, 11}, {32, 11}, {80, 33}, {18, 11}, {15, 11}, {64, 33}, {160,99}, {4, 3}, {3, 2}, {2, 1}, }; #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]={ { 6,13,20,28, 13,20,28,32, 20,28,32,37, 28,32,37,42 },{ 10,14,20,24, 14,20,24,27, 20,24,27,30, 24,27,30,34 }}; static const uint8_t default_scaling8[2][64]={ { 6,10,13,16,18,23,25,27, 10,11,16,18,23,25,27,29, 13,16,18,23,25,27,29,31, 16,18,23,25,27,29,31,33, 18,23,25,27,29,31,33,36, 23,25,27,29,31,33,36,38, 25,27,29,31,33,36,38,40, 27,29,31,33,36,38,40,42 },{ 9,13,15,17,19,21,22,24, 13,13,17,19,21,22,24,25, 15,17,19,21,22,24,25,27, 17,19,21,22,24,25,27,28, 19,21,22,24,25,27,28,30, 21,22,24,25,27,28,30,32, 22,24,25,27,28,30,32,33, 24,25,27,28,30,32,33,35 }}; 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; if(cpb_count > 32U){ av_log(h->s.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 */ 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 */ } 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->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); if( aspect_ratio_info_present_flag ) { aspect_ratio_idc= get_bits(&s->gb, 8); if( aspect_ratio_idc == EXTENDED_SAR ) { sps->sar.num= get_bits(&s->gb, 16); sps->sar.den= get_bits(&s->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"); return -1; } }else{ sps->sar.num= sps->sar.den= 0; } // 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 */ } sps->video_signal_type_present_flag = get_bits1(&s->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 */ sps->colour_description_present_flag = get_bits1(&s->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 */ if (sps->color_primaries >= AVCOL_PRI_NB) sps->color_primaries = AVCOL_PRI_UNSPECIFIED; if (sps->color_trc >= AVCOL_TRC_NB) sps->color_trc = AVCOL_TRC_UNSPECIFIED; if (sps->colorspace >= AVCOL_SPC_NB) sps->colorspace = AVCOL_SPC_UNSPECIFIED; } } 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 */ } sps->timing_info_present_flag = get_bits1(&s->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); 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); return -1; } sps->fixed_frame_rate_flag = get_bits1(&s->gb); } sps->nal_hrd_parameters_present_flag = get_bits1(&s->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); 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); sps->bitstream_restriction_flag = get_bits1(&s->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); 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); return -1; } } 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 */ 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; if(!i && !next){ /* matrix not written, we use the preset one */ memcpy(factors, jvt_list, size*sizeof(uint8_t)); break; } last = factors[scan[i]] = next ? next : last; } } 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[3] : default_scaling8[1] }; if(get_bits1(&s->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[2],16,default_scaling4[0],scaling_matrix4[1]); // Intra, Cb decode_scaling_list(h,scaling_matrix4[3],16,default_scaling4[1],fallback[1]); // Inter, Y decode_scaling_list(h,scaling_matrix4[4],16,default_scaling4[1],scaling_matrix4[3]); // Inter, 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 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; 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); if(sps_id >= MAX_SPS_COUNT) { av_log(h->s.avctx, AV_LOG_ERROR, "sps_id (%d) out of range\n", sps_id); return -1; } sps= av_mallocz(sizeof(SPS)); if(sps == NULL) return -1; sps->time_offset_length = 24; sps->profile_idc= profile_idc; sps->constraint_set_flags = constraint_set_flags; sps->level_idc= level_idc; memset(sps->scaling_matrix4, 16, sizeof(sps->scaling_matrix4)); 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); decode_scaling_matrices(h, sps, NULL, 1, sps->scaling_matrix4, sps->scaling_matrix8); }else{ sps->chroma_format_idc= 1; sps->bit_depth_luma = 8; 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); if(sps->poc_type == 0){ //FIXME #define sps->log2_max_poc_lsb= get_ue_golomb(&s->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); 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); goto fail; } for(i=0; i<sps->poc_cycle_length; i++) sps->offset_for_ref_frame[i]= get_se_golomb(&s->gb); }else if(sps->poc_type != 2){ av_log(h->s.avctx, AV_LOG_ERROR, "illegal POC type %d\n", sps->poc_type); goto fail; } sps->ref_frame_count= get_ue_golomb_31(&s->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"); 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; 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"); goto fail; } sps->frame_mbs_only_flag= get_bits1(&s->gb); if(!sps->frame_mbs_only_flag) sps->mb_aff= get_bits1(&s->gb); else sps->mb_aff= 0; sps->direct_8x8_inference_flag= get_bits1(&s->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"); 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"); #endif sps->crop= get_bits1(&s->gb); if(sps->crop){ 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(&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){ av_log(h->s.avctx, AV_LOG_ERROR, "insane cropping not completely supported, this could look slightly wrong ... (left: %d, top: %d)\n", sps->crop_left, sps->crop_top); } if(sps->crop_right >= crop_horizontal_limit || sps->crop_bottom >= crop_vertical_limit){ av_log(h->s.avctx, AV_LOG_ERROR, "brainfart cropping not supported, cropping disabled (right: %d, bottom: %d)\n", sps->crop_right, sps->crop_bottom); /* It is very unlikely that partial cropping will make anybody happy. * Not cropping at all fixes for example playback of Sisvel 3D streams * in applications supporting Sisvel 3D. */ sps->crop_left = sps->crop_right = sps->crop_top = sps->crop_bottom= 0; } }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 ) 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 b%d\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" : "", ((const char*[]){"Gray","420","422","444"})[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->bit_depth_luma ); } av_free(h->sps_buffers[sps_id]); h->sps_buffers[sps_id]= sps; h->sps = *sps; return 0; fail: av_free(sps); return -1; } static void build_qp_table(PPS *pps, int t, int index, const int depth) { int i; 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); PPS *pps; const int qp_bd_offset = 6*(h->sps.bit_depth_luma-8); if(pps_id >= MAX_PPS_COUNT) { av_log(h->s.avctx, AV_LOG_ERROR, "pps_id (%d) out of range\n", pps_id); return -1; } pps= av_mallocz(sizeof(PPS)); if(pps == NULL) return -1; pps->sps_id= get_ue_golomb_31(&s->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"); 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; 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"); switch(pps->mb_slice_group_map_type){ case 0: #if 0 | for( i = 0; i <= num_slice_groups_minus1; i++ ) | | | | run_length[ i ] |1 |ue(v) | #endif break; case 2: #if 0 | for( i = 0; i < num_slice_groups_minus1; i++ ) | | | |{ | | | | top_left_mb[ i ] |1 |ue(v) | | bottom_right_mb[ i ] |1 |ue(v) | | } | | | #endif break; case 3: case 4: case 5: #if 0 | slice_group_change_direction_flag |1 |u(1) | | slice_group_change_rate_minus1 |1 |ue(v) | #endif break; case 6: #if 0 | slice_group_id_cnt_minus1 |1 |ue(v) | | for( i = 0; i <= slice_group_id_cnt_minus1; i++ | | | |) | | | | slice_group_id[ i ] |1 |u(v) | #endif break; } } pps->ref_count[0]= get_ue_golomb(&s->gb) + 1; pps->ref_count[1]= get_ue_golomb(&s->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"); 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 + qp_bd_offset; pps->init_qs= get_se_golomb(&s->gb) + 26 + qp_bd_offset; 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->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); 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 } else { pps->chroma_qp_index_offset[1]= pps->chroma_qp_index_offset[0]; } 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", pps_id, pps->sps_id, pps->cabac ? "CABAC" : "CAVLC", pps->slice_group_count, pps->ref_count[0], pps->ref_count[1], pps->weighted_pred ? "weighted" : "", pps->init_qp, pps->init_qs, pps->chroma_qp_index_offset[0], pps->chroma_qp_index_offset[1], pps->deblocking_filter_parameters_present ? "LPAR" : "", pps->constrained_intra_pred ? "CONSTR" : "", pps->redundant_pic_cnt_present ? "REDU" : "", pps->transform_8x8_mode ? "8x8DCT" : "" ); } av_free(h->pps_buffers[pps_id]); h->pps_buffers[pps_id]= pps; return 0; fail: av_free(pps); return -1; }