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   1 /*
   2  * This file is part of FFmpeg.
   3  *
   4  * FFmpeg is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * FFmpeg is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with FFmpeg; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17  */
  18
  19 #ifndef AVCODEC_CBS_H265_H
  20 #define AVCODEC_CBS_H265_H
  21
  22 #include <stddef.h>
  23 #include <stdint.h>
  24
  25 #include "cbs_h2645.h"
  26 #include "hevc.h"
  27
  28
  29 typedef struct H265RawNALUnitHeader {
  30     uint8_t forbidden_zero_bit;
  31     uint8_t nal_unit_type;
  32     uint8_t nuh_layer_id;
  33     uint8_t nuh_temporal_id_plus1;
  34 } H265RawNALUnitHeader;
  35
  36 typedef struct H265RawProfileTierLevel {
  37     uint8_t general_profile_space;
  38     uint8_t general_tier_flag;
  39     uint8_t general_profile_idc;
  40
  41     uint8_t general_profile_compatibility_flag[32];
  42
  43     uint8_t general_progressive_source_flag;
  44     uint8_t general_interlaced_source_flag;
  45     uint8_t general_non_packed_constraint_flag;
  46     uint8_t general_frame_only_constraint_flag;
  47
  48     uint8_t general_max_12bit_constraint_flag;
  49     uint8_t general_max_10bit_constraint_flag;
  50     uint8_t general_max_8bit_constraint_flag;
  51     uint8_t general_max_422chroma_constraint_flag;
  52     uint8_t general_max_420chroma_constraint_flag;
  53     uint8_t general_max_monochrome_constraint_flag;
  54     uint8_t general_intra_constraint_flag;
  55     uint8_t general_one_picture_only_constraint_flag;
  56     uint8_t general_lower_bit_rate_constraint_flag;
  57     uint8_t general_max_14bit_constraint_flag;
  58
  59     uint8_t general_inbld_flag;
  60
  61     uint8_t general_level_idc;
  62
  63     uint8_t sub_layer_profile_present_flag[HEVC_MAX_SUB_LAYERS];
  64     uint8_t sub_layer_level_present_flag[HEVC_MAX_SUB_LAYERS];
  65
  66     // TODO: much of that again for each sub-layer.
  67 } H265RawProfileTierLevel;
  68
  69 typedef struct H265RawSubLayerHRDParameters {
  70     uint32_t bit_rate_value_minus1[HEVC_MAX_CPB_CNT];
  71     uint32_t cpb_size_value_minus1[HEVC_MAX_CPB_CNT];
  72     uint32_t cpb_size_du_value_minus1[HEVC_MAX_CPB_CNT];
  73     uint32_t bit_rate_du_value_minus1[HEVC_MAX_CPB_CNT];
  74     uint8_t cbr_flag[HEVC_MAX_CPB_CNT];
  75 } H265RawSubLayerHRDParameters;
  76
  77 typedef struct H265RawHRDParameters {
  78     uint8_t nal_hrd_parameters_present_flag;
  79     uint8_t vcl_hrd_parameters_present_flag;
  80
  81     uint8_t sub_pic_hrd_params_present_flag;
  82     uint8_t tick_divisor_minus2;
  83     uint8_t du_cpb_removal_delay_increment_length_minus1;
  84     uint8_t sub_pic_cpb_params_in_pic_timing_sei_flag;
  85     uint8_t dpb_output_delay_du_length_minus1;
  86
  87     uint8_t bit_rate_scale;
  88     uint8_t cpb_size_scale;
  89     uint8_t cpb_size_du_scale;
  90
  91     uint8_t initial_cpb_removal_delay_length_minus1;
  92     uint8_t au_cpb_removal_delay_length_minus1;
  93     uint8_t dpb_output_delay_length_minus1;
  94
  95     uint8_t fixed_pic_rate_general_flag[HEVC_MAX_SUB_LAYERS];
  96     uint8_t fixed_pic_rate_within_cvs_flag[HEVC_MAX_SUB_LAYERS];
  97     uint16_t elemental_duration_in_tc_minus1[HEVC_MAX_SUB_LAYERS];
  98     uint8_t low_delay_hrd_flag[HEVC_MAX_SUB_LAYERS];
  99     uint8_t cpb_cnt_minus1[HEVC_MAX_SUB_LAYERS];
 100     H265RawSubLayerHRDParameters nal_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS];
 101     H265RawSubLayerHRDParameters vcl_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS];
 102 } H265RawHRDParameters;
 103
 104 typedef struct H265RawVUI {
 105     uint8_t aspect_ratio_info_present_flag;
 106     uint8_t aspect_ratio_idc;
 107     uint16_t sar_width;
 108     uint16_t sar_height;
 109
 110     uint8_t overscan_info_present_flag;
 111     uint8_t overscan_appropriate_flag;
 112
 113     uint8_t video_signal_type_present_flag;
 114     uint8_t video_format;
 115     uint8_t video_full_range_flag;
 116     uint8_t colour_description_present_flag;
 117     uint8_t colour_primaries;
 118     uint8_t transfer_characteristics;
 119     uint8_t matrix_coefficients;
 120
 121     uint8_t chroma_loc_info_present_flag;
 122     uint8_t chroma_sample_loc_type_top_field;
 123     uint8_t chroma_sample_loc_type_bottom_field;
 124
 125     uint8_t neutral_chroma_indication_flag;
 126     uint8_t field_seq_flag;
 127     uint8_t frame_field_info_present_flag;
 128
 129     uint8_t default_display_window_flag;
 130     uint16_t def_disp_win_left_offset;
 131     uint16_t def_disp_win_right_offset;
 132     uint16_t def_disp_win_top_offset;
 133     uint16_t def_disp_win_bottom_offset;
 134
 135     uint8_t vui_timing_info_present_flag;
 136     uint32_t vui_num_units_in_tick;
 137     uint32_t vui_time_scale;
 138     uint8_t vui_poc_proportional_to_timing_flag;
 139     uint32_t vui_num_ticks_poc_diff_one_minus1;
 140     uint8_t vui_hrd_parameters_present_flag;
 141     H265RawHRDParameters hrd_parameters;
 142
 143     uint8_t bitstream_restriction_flag;
 144     uint8_t tiles_fixed_structure_flag;
 145     uint8_t motion_vectors_over_pic_boundaries_flag;
 146     uint8_t restricted_ref_pic_lists_flag;
 147     uint16_t min_spatial_segmentation_idc;
 148     uint8_t max_bytes_per_pic_denom;
 149     uint8_t max_bits_per_min_cu_denom;
 150     uint8_t log2_max_mv_length_horizontal;
 151     uint8_t log2_max_mv_length_vertical;
 152 } H265RawVUI;
 153
 154 typedef struct H265RawPSExtensionData {
 155     uint8_t *data;
 156     size_t bit_length;
 157 } H265RawPSExtensionData;
 158
 159 typedef struct H265RawVPS {
 160     H265RawNALUnitHeader nal_unit_header;
 161
 162     uint8_t vps_video_parameter_set_id;
 163
 164     uint8_t vps_base_layer_internal_flag;
 165     uint8_t vps_base_layer_available_flag;
 166     uint8_t vps_max_layers_minus1;
 167     uint8_t vps_max_sub_layers_minus1;
 168     uint8_t vps_temporal_id_nesting_flag;
 169
 170     H265RawProfileTierLevel profile_tier_level;
 171
 172     uint8_t vps_sub_layer_ordering_info_present_flag;
 173     uint8_t vps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS];
 174     uint8_t vps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS];
 175     uint32_t vps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS];
 176
 177     uint8_t vps_max_layer_id;
 178     uint16_t vps_num_layer_sets_minus1;
 179     uint8_t layer_id_included_flag[HEVC_MAX_LAYER_SETS][HEVC_MAX_LAYERS];
 180
 181     uint8_t vps_timing_info_present_flag;
 182     uint32_t vps_num_units_in_tick;
 183     uint32_t vps_time_scale;
 184     uint8_t vps_poc_proportional_to_timing_flag;
 185     uint32_t vps_num_ticks_poc_diff_one_minus1;
 186     uint16_t vps_num_hrd_parameters;
 187     uint16_t hrd_layer_set_idx[HEVC_MAX_LAYER_SETS];
 188     uint8_t cprms_present_flag[HEVC_MAX_LAYER_SETS];
 189     H265RawHRDParameters hrd_parameters[HEVC_MAX_LAYER_SETS];
 190
 191     uint8_t vps_extension_flag;
 192     H265RawPSExtensionData extension_data;
 193 } H265RawVPS;
 194
 195 typedef struct H265RawSTRefPicSet {
 196     uint8_t inter_ref_pic_set_prediction_flag;
 197
 198     uint8_t delta_idx_minus1;
 199     uint8_t delta_rps_sign;
 200     uint16_t abs_delta_rps_minus1;
 201
 202     uint8_t used_by_curr_pic_flag[HEVC_MAX_REFS];
 203     uint8_t use_delta_flag[HEVC_MAX_REFS];
 204
 205     uint8_t num_negative_pics;
 206     uint8_t num_positive_pics;
 207     uint16_t delta_poc_s0_minus1[HEVC_MAX_REFS];
 208     uint8_t used_by_curr_pic_s0_flag[HEVC_MAX_REFS];
 209     uint16_t delta_poc_s1_minus1[HEVC_MAX_REFS];
 210     uint8_t used_by_curr_pic_s1_flag[HEVC_MAX_REFS];
 211 } H265RawSTRefPicSet;
 212
 213 typedef struct H265RawScalingList {
 214     uint8_t scaling_list_pred_mode_flag[4][6];
 215     uint8_t scaling_list_pred_matrix_id_delta[4][6];
 216     int16_t scaling_list_dc_coef_minus8[4][6];
 217     int8_t scaling_list_delta_coeff[4][6][64];
 218 } H265RawScalingList;
 219
 220 typedef struct H265RawSPS {
 221     H265RawNALUnitHeader nal_unit_header;
 222
 223     uint8_t sps_video_parameter_set_id;
 224
 225     uint8_t sps_max_sub_layers_minus1;
 226     uint8_t sps_temporal_id_nesting_flag;
 227
 228     H265RawProfileTierLevel profile_tier_level;
 229
 230     uint8_t sps_seq_parameter_set_id;
 231
 232     uint8_t chroma_format_idc;
 233     uint8_t separate_colour_plane_flag;
 234
 235     uint16_t pic_width_in_luma_samples;
 236     uint16_t pic_height_in_luma_samples;
 237
 238     uint8_t conformance_window_flag;
 239     uint16_t conf_win_left_offset;
 240     uint16_t conf_win_right_offset;
 241     uint16_t conf_win_top_offset;
 242     uint16_t conf_win_bottom_offset;
 243
 244     uint8_t bit_depth_luma_minus8;
 245     uint8_t bit_depth_chroma_minus8;
 246
 247     uint8_t log2_max_pic_order_cnt_lsb_minus4;
 248
 249     uint8_t sps_sub_layer_ordering_info_present_flag;
 250     uint8_t sps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS];
 251     uint8_t sps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS];
 252     uint32_t sps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS];
 253
 254     uint8_t log2_min_luma_coding_block_size_minus3;
 255     uint8_t log2_diff_max_min_luma_coding_block_size;
 256     uint8_t log2_min_luma_transform_block_size_minus2;
 257     uint8_t log2_diff_max_min_luma_transform_block_size;
 258     uint8_t max_transform_hierarchy_depth_inter;
 259     uint8_t max_transform_hierarchy_depth_intra;
 260
 261     uint8_t scaling_list_enabled_flag;
 262     uint8_t sps_scaling_list_data_present_flag;
 263     H265RawScalingList scaling_list;
 264
 265     uint8_t amp_enabled_flag;
 266     uint8_t sample_adaptive_offset_enabled_flag;
 267
 268     uint8_t pcm_enabled_flag;
 269     uint8_t pcm_sample_bit_depth_luma_minus1;
 270     uint8_t pcm_sample_bit_depth_chroma_minus1;
 271     uint8_t log2_min_pcm_luma_coding_block_size_minus3;
 272     uint8_t log2_diff_max_min_pcm_luma_coding_block_size;
 273     uint8_t pcm_loop_filter_disabled_flag;
 274
 275     uint8_t num_short_term_ref_pic_sets;
 276     H265RawSTRefPicSet st_ref_pic_set[HEVC_MAX_SHORT_TERM_REF_PIC_SETS];
 277
 278     uint8_t long_term_ref_pics_present_flag;
 279     uint8_t num_long_term_ref_pics_sps;
 280     uint16_t lt_ref_pic_poc_lsb_sps[HEVC_MAX_LONG_TERM_REF_PICS];
 281     uint8_t used_by_curr_pic_lt_sps_flag[HEVC_MAX_LONG_TERM_REF_PICS];
 282
 283     uint8_t sps_temporal_mvp_enabled_flag;
 284     uint8_t strong_intra_smoothing_enabled_flag;
 285
 286     uint8_t vui_parameters_present_flag;
 287     H265RawVUI vui;
 288
 289     uint8_t sps_extension_present_flag;
 290     uint8_t sps_range_extension_flag;
 291     uint8_t sps_multilayer_extension_flag;
 292     uint8_t sps_3d_extension_flag;
 293     uint8_t sps_scc_extension_flag;
 294     uint8_t sps_extension_4bits;
 295
 296     H265RawPSExtensionData extension_data;
 297
 298     // Range extension.
 299     uint8_t transform_skip_rotation_enabled_flag;
 300     uint8_t transform_skip_context_enabled_flag;
 301     uint8_t implicit_rdpcm_enabled_flag;
 302     uint8_t explicit_rdpcm_enabled_flag;
 303     uint8_t extended_precision_processing_flag;
 304     uint8_t intra_smoothing_disabled_flag;
 305     uint8_t high_precision_offsets_enabled_flag;
 306     uint8_t persistent_rice_adaptation_enabled_flag;
 307     uint8_t cabac_bypass_alignment_enabled_flag;
 308
 309     // Screen content coding extension.
 310     uint8_t sps_curr_pic_ref_enabled_flag;
 311     uint8_t palette_mode_enabled_flag;
 312     uint8_t palette_max_size;
 313     uint8_t delta_palette_max_predictor_size;
 314     uint8_t sps_palette_predictor_initializer_present_flag;
 315     uint8_t sps_num_palette_predictor_initializer_minus1;
 316     uint16_t sps_palette_predictor_initializers[3][128];
 317
 318     uint8_t motion_vector_resolution_control_idc;
 319     uint8_t intra_boundary_filtering_disable_flag;
 320 } H265RawSPS;
 321
 322 typedef struct H265RawPPS {
 323     H265RawNALUnitHeader nal_unit_header;
 324
 325     uint8_t pps_pic_parameter_set_id;
 326     uint8_t pps_seq_parameter_set_id;
 327
 328     uint8_t dependent_slice_segments_enabled_flag;
 329     uint8_t output_flag_present_flag;
 330     uint8_t num_extra_slice_header_bits;
 331     uint8_t sign_data_hiding_enabled_flag;
 332     uint8_t cabac_init_present_flag;
 333
 334     uint8_t num_ref_idx_l0_default_active_minus1;
 335     uint8_t num_ref_idx_l1_default_active_minus1;
 336
 337     int8_t init_qp_minus26;
 338
 339     uint8_t constrained_intra_pred_flag;
 340     uint8_t transform_skip_enabled_flag;
 341     uint8_t cu_qp_delta_enabled_flag;
 342     uint8_t diff_cu_qp_delta_depth;
 343
 344     int8_t pps_cb_qp_offset;
 345     int8_t pps_cr_qp_offset;
 346     uint8_t pps_slice_chroma_qp_offsets_present_flag;
 347
 348     uint8_t weighted_pred_flag;
 349     uint8_t weighted_bipred_flag;
 350
 351     uint8_t transquant_bypass_enabled_flag;
 352     uint8_t tiles_enabled_flag;
 353     uint8_t entropy_coding_sync_enabled_flag;
 354
 355     uint8_t num_tile_columns_minus1;
 356     uint8_t num_tile_rows_minus1;
 357     uint8_t uniform_spacing_flag;
 358     uint16_t column_width_minus1[HEVC_MAX_TILE_COLUMNS];
 359     uint16_t row_height_minus1[HEVC_MAX_TILE_ROWS];
 360     uint8_t loop_filter_across_tiles_enabled_flag;
 361
 362     uint8_t pps_loop_filter_across_slices_enabled_flag;
 363     uint8_t deblocking_filter_control_present_flag;
 364     uint8_t deblocking_filter_override_enabled_flag;
 365     uint8_t pps_deblocking_filter_disabled_flag;
 366     int8_t pps_beta_offset_div2;
 367     int8_t pps_tc_offset_div2;
 368
 369     uint8_t pps_scaling_list_data_present_flag;
 370     H265RawScalingList scaling_list;
 371
 372     uint8_t lists_modification_present_flag;
 373     uint8_t log2_parallel_merge_level_minus2;
 374
 375     uint8_t slice_segment_header_extension_present_flag;
 376
 377     uint8_t pps_extension_present_flag;
 378     uint8_t pps_range_extension_flag;
 379     uint8_t pps_multilayer_extension_flag;
 380     uint8_t pps_3d_extension_flag;
 381     uint8_t pps_scc_extension_flag;
 382     uint8_t pps_extension_4bits;
 383
 384     H265RawPSExtensionData extension_data;
 385
 386     // Range extension.
 387     uint8_t log2_max_transform_skip_block_size_minus2;
 388     uint8_t cross_component_prediction_enabled_flag;
 389     uint8_t chroma_qp_offset_list_enabled_flag;
 390     uint8_t diff_cu_chroma_qp_offset_depth;
 391     uint8_t chroma_qp_offset_list_len_minus1;
 392     int8_t cb_qp_offset_list[6];
 393     int8_t cr_qp_offset_list[6];
 394     uint8_t log2_sao_offset_scale_luma;
 395     uint8_t log2_sao_offset_scale_chroma;
 396
 397     // Screen content coding extension.
 398     uint8_t pps_curr_pic_ref_enabled_flag;
 399     uint8_t residual_adaptive_colour_transform_enabled_flag;
 400     uint8_t pps_slice_act_qp_offsets_present_flag;
 401     int8_t pps_act_y_qp_offset_plus5;
 402     int8_t pps_act_cb_qp_offset_plus5;
 403     int8_t pps_act_cr_qp_offset_plus3;
 404
 405     uint8_t pps_palette_predictor_initializer_present_flag;
 406     uint8_t pps_num_palette_predictor_initializer;
 407     uint8_t monochrome_palette_flag;
 408     uint8_t luma_bit_depth_entry_minus8;
 409     uint8_t chroma_bit_depth_entry_minus8;
 410     uint16_t pps_palette_predictor_initializers[3][128];
 411 } H265RawPPS;
 412
 413 typedef struct H265RawAUD {
 414     H265RawNALUnitHeader nal_unit_header;
 415
 416     uint8_t pic_type;
 417 } H265RawAUD;
 418
 419 typedef struct  H265RawSliceHeader {
 420     H265RawNALUnitHeader nal_unit_header;
 421
 422     uint8_t first_slice_segment_in_pic_flag;
 423     uint8_t no_output_of_prior_pics_flag;
 424     uint8_t slice_pic_parameter_set_id;
 425
 426     uint8_t dependent_slice_segment_flag;
 427     uint16_t slice_segment_address;
 428
 429     uint8_t slice_reserved_flag[8];
 430     uint8_t slice_type;
 431
 432     uint8_t pic_output_flag;
 433     uint8_t colour_plane_id;
 434
 435     uint16_t slice_pic_order_cnt_lsb;
 436
 437     uint8_t short_term_ref_pic_set_sps_flag;
 438     H265RawSTRefPicSet short_term_ref_pic_set;
 439     uint8_t short_term_ref_pic_set_idx;
 440
 441     uint8_t num_long_term_sps;
 442     uint8_t num_long_term_pics;
 443     uint8_t lt_idx_sps[HEVC_MAX_REFS];
 444     uint8_t poc_lsb_lt[HEVC_MAX_REFS];
 445     uint8_t used_by_curr_pic_lt_flag[HEVC_MAX_REFS];
 446     uint8_t delta_poc_msb_present_flag[HEVC_MAX_REFS];
 447     uint32_t delta_poc_msb_cycle_lt[HEVC_MAX_REFS];
 448
 449     uint8_t slice_temporal_mvp_enabled_flag;
 450
 451     uint8_t slice_sao_luma_flag;
 452     uint8_t slice_sao_chroma_flag;
 453
 454     uint8_t num_ref_idx_active_override_flag;
 455     uint8_t num_ref_idx_l0_active_minus1;
 456     uint8_t num_ref_idx_l1_active_minus1;
 457
 458     uint8_t ref_pic_list_modification_flag_l0;
 459     uint8_t list_entry_l0[HEVC_MAX_REFS];
 460     uint8_t ref_pic_list_modification_flag_l1;
 461     uint8_t list_entry_l1[HEVC_MAX_REFS];
 462
 463     uint8_t mvd_l1_zero_flag;
 464     uint8_t cabac_init_flag;
 465     uint8_t collocated_from_l0_flag;
 466     uint8_t collocated_ref_idx;
 467
 468     uint8_t luma_log2_weight_denom;
 469     int8_t delta_chroma_log2_weight_denom;
 470     uint8_t luma_weight_l0_flag[HEVC_MAX_REFS];
 471     uint8_t chroma_weight_l0_flag[HEVC_MAX_REFS];
 472     int8_t delta_luma_weight_l0[HEVC_MAX_REFS];
 473     int16_t luma_offset_l0[HEVC_MAX_REFS];
 474     int8_t delta_chroma_weight_l0[HEVC_MAX_REFS][2];
 475     int16_t chroma_offset_l0[HEVC_MAX_REFS][2];
 476     uint8_t luma_weight_l1_flag[HEVC_MAX_REFS];
 477     uint8_t chroma_weight_l1_flag[HEVC_MAX_REFS];
 478     int8_t delta_luma_weight_l1[HEVC_MAX_REFS];
 479     int16_t luma_offset_l1[HEVC_MAX_REFS];
 480     int8_t delta_chroma_weight_l1[HEVC_MAX_REFS][2];
 481     int16_t chroma_offset_l1[HEVC_MAX_REFS][2];
 482
 483     uint8_t five_minus_max_num_merge_cand;
 484     uint8_t use_integer_mv_flag;
 485
 486     int8_t slice_qp_delta;
 487     int8_t slice_cb_qp_offset;
 488     int8_t slice_cr_qp_offset;
 489     int8_t slice_act_y_qp_offset;
 490     int8_t slice_act_cb_qp_offset;
 491     int8_t slice_act_cr_qp_offset;
 492     uint8_t cu_chroma_qp_offset_enabled_flag;
 493
 494     uint8_t deblocking_filter_override_flag;
 495     uint8_t slice_deblocking_filter_disabled_flag;
 496     int8_t slice_beta_offset_div2;
 497     int8_t slice_tc_offset_div2;
 498     uint8_t slice_loop_filter_across_slices_enabled_flag;
 499
 500     uint16_t num_entry_point_offsets;
 501     uint8_t offset_len_minus1;
 502     uint32_t entry_point_offset_minus1[HEVC_MAX_ENTRY_POINT_OFFSETS];
 503
 504     uint16_t slice_segment_header_extension_length;
 505     uint8_t slice_segment_header_extension_data_byte[256];
 506 } H265RawSliceHeader;
 507
 508
 509 typedef struct H265RawSlice {
 510     H265RawSliceHeader header;
 511
 512     uint8_t *data;
 513     size_t   data_size;
 514     int      data_bit_start;
 515 } H265RawSlice;
 516
 517
 518 typedef struct CodedBitstreamH265Context {
 519     // Reader/writer context in common with the H.264 implementation.
 520     CodedBitstreamH2645Context common;
 521
 522     // All currently available parameter sets.  These are updated when
 523     // any parameter set NAL unit is read/written with this context.
 524     H265RawVPS *vps[HEVC_MAX_VPS_COUNT];
 525     H265RawSPS *sps[HEVC_MAX_SPS_COUNT];
 526     H265RawPPS *pps[HEVC_MAX_PPS_COUNT];
 527
 528     // The currently active parameter sets.  These are updated when any
 529     // NAL unit refers to the relevant parameter set.  These pointers
 530     // must also be present in the arrays above.
 531     const H265RawVPS *active_vps;
 532     const H265RawSPS *active_sps;
 533     const H265RawPPS *active_pps;
 534 } CodedBitstreamH265Context;
 535
 536
 537 #endif /* AVCODEC_CBS_H265_H */