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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 enum {
  29     // This limit is arbitrary - it is sufficient for one message of each
  30     // type plus some repeats, and will therefore easily cover all sane
  31     // streams.  However, it is possible to make technically-valid streams
  32     // for which it will fail (for example, by including a large number of
  33     // user-data-unregistered messages).
  34     H265_MAX_SEI_PAYLOADS = 64,
  35 };
  36
  37 typedef struct H265RawNALUnitHeader {
  38     uint8_t forbidden_zero_bit;
  39     uint8_t nal_unit_type;
  40     uint8_t nuh_layer_id;
  41     uint8_t nuh_temporal_id_plus1;
  42 } H265RawNALUnitHeader;
  43
  44 typedef struct H265RawProfileTierLevel {
  45     uint8_t general_profile_space;
  46     uint8_t general_tier_flag;
  47     uint8_t general_profile_idc;
  48
  49     uint8_t general_profile_compatibility_flag[32];
  50
  51     uint8_t general_progressive_source_flag;
  52     uint8_t general_interlaced_source_flag;
  53     uint8_t general_non_packed_constraint_flag;
  54     uint8_t general_frame_only_constraint_flag;
  55
  56     uint8_t general_max_12bit_constraint_flag;
  57     uint8_t general_max_10bit_constraint_flag;
  58     uint8_t general_max_8bit_constraint_flag;
  59     uint8_t general_max_422chroma_constraint_flag;
  60     uint8_t general_max_420chroma_constraint_flag;
  61     uint8_t general_max_monochrome_constraint_flag;
  62     uint8_t general_intra_constraint_flag;
  63     uint8_t general_one_picture_only_constraint_flag;
  64     uint8_t general_lower_bit_rate_constraint_flag;
  65     uint8_t general_max_14bit_constraint_flag;
  66
  67     uint8_t general_inbld_flag;
  68
  69     uint8_t general_level_idc;
  70
  71     uint8_t sub_layer_profile_present_flag[HEVC_MAX_SUB_LAYERS];
  72     uint8_t sub_layer_level_present_flag[HEVC_MAX_SUB_LAYERS];
  73
  74     // TODO: much of that again for each sub-layer.
  75 } H265RawProfileTierLevel;
  76
  77 typedef struct H265RawSubLayerHRDParameters {
  78     uint32_t bit_rate_value_minus1[HEVC_MAX_CPB_CNT];
  79     uint32_t cpb_size_value_minus1[HEVC_MAX_CPB_CNT];
  80     uint32_t cpb_size_du_value_minus1[HEVC_MAX_CPB_CNT];
  81     uint32_t bit_rate_du_value_minus1[HEVC_MAX_CPB_CNT];
  82     uint8_t cbr_flag[HEVC_MAX_CPB_CNT];
  83 } H265RawSubLayerHRDParameters;
  84
  85 typedef struct H265RawHRDParameters {
  86     uint8_t nal_hrd_parameters_present_flag;
  87     uint8_t vcl_hrd_parameters_present_flag;
  88
  89     uint8_t sub_pic_hrd_params_present_flag;
  90     uint8_t tick_divisor_minus2;
  91     uint8_t du_cpb_removal_delay_increment_length_minus1;
  92     uint8_t sub_pic_cpb_params_in_pic_timing_sei_flag;
  93     uint8_t dpb_output_delay_du_length_minus1;
  94
  95     uint8_t bit_rate_scale;
  96     uint8_t cpb_size_scale;
  97     uint8_t cpb_size_du_scale;
  98
  99     uint8_t initial_cpb_removal_delay_length_minus1;
 100     uint8_t au_cpb_removal_delay_length_minus1;
 101     uint8_t dpb_output_delay_length_minus1;
 102
 103     uint8_t fixed_pic_rate_general_flag[HEVC_MAX_SUB_LAYERS];
 104     uint8_t fixed_pic_rate_within_cvs_flag[HEVC_MAX_SUB_LAYERS];
 105     uint16_t elemental_duration_in_tc_minus1[HEVC_MAX_SUB_LAYERS];
 106     uint8_t low_delay_hrd_flag[HEVC_MAX_SUB_LAYERS];
 107     uint8_t cpb_cnt_minus1[HEVC_MAX_SUB_LAYERS];
 108     H265RawSubLayerHRDParameters nal_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS];
 109     H265RawSubLayerHRDParameters vcl_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS];
 110 } H265RawHRDParameters;
 111
 112 typedef struct H265RawVUI {
 113     uint8_t aspect_ratio_info_present_flag;
 114     uint8_t aspect_ratio_idc;
 115     uint16_t sar_width;
 116     uint16_t sar_height;
 117
 118     uint8_t overscan_info_present_flag;
 119     uint8_t overscan_appropriate_flag;
 120
 121     uint8_t video_signal_type_present_flag;
 122     uint8_t video_format;
 123     uint8_t video_full_range_flag;
 124     uint8_t colour_description_present_flag;
 125     uint8_t colour_primaries;
 126     uint8_t transfer_characteristics;
 127     uint8_t matrix_coefficients;
 128
 129     uint8_t chroma_loc_info_present_flag;
 130     uint8_t chroma_sample_loc_type_top_field;
 131     uint8_t chroma_sample_loc_type_bottom_field;
 132
 133     uint8_t neutral_chroma_indication_flag;
 134     uint8_t field_seq_flag;
 135     uint8_t frame_field_info_present_flag;
 136
 137     uint8_t default_display_window_flag;
 138     uint16_t def_disp_win_left_offset;
 139     uint16_t def_disp_win_right_offset;
 140     uint16_t def_disp_win_top_offset;
 141     uint16_t def_disp_win_bottom_offset;
 142
 143     uint8_t vui_timing_info_present_flag;
 144     uint32_t vui_num_units_in_tick;
 145     uint32_t vui_time_scale;
 146     uint8_t vui_poc_proportional_to_timing_flag;
 147     uint32_t vui_num_ticks_poc_diff_one_minus1;
 148     uint8_t vui_hrd_parameters_present_flag;
 149     H265RawHRDParameters hrd_parameters;
 150
 151     uint8_t bitstream_restriction_flag;
 152     uint8_t tiles_fixed_structure_flag;
 153     uint8_t motion_vectors_over_pic_boundaries_flag;
 154     uint8_t restricted_ref_pic_lists_flag;
 155     uint16_t min_spatial_segmentation_idc;
 156     uint8_t max_bytes_per_pic_denom;
 157     uint8_t max_bits_per_min_cu_denom;
 158     uint8_t log2_max_mv_length_horizontal;
 159     uint8_t log2_max_mv_length_vertical;
 160 } H265RawVUI;
 161
 162 typedef struct H265RawPSExtensionData {
 163     uint8_t *data;
 164     size_t bit_length;
 165     AVBufferRef *data_ref;
 166 } H265RawPSExtensionData;
 167
 168 typedef struct H265RawVPS {
 169     H265RawNALUnitHeader nal_unit_header;
 170
 171     uint8_t vps_video_parameter_set_id;
 172
 173     uint8_t vps_base_layer_internal_flag;
 174     uint8_t vps_base_layer_available_flag;
 175     uint8_t vps_max_layers_minus1;
 176     uint8_t vps_max_sub_layers_minus1;
 177     uint8_t vps_temporal_id_nesting_flag;
 178
 179     H265RawProfileTierLevel profile_tier_level;
 180
 181     uint8_t vps_sub_layer_ordering_info_present_flag;
 182     uint8_t vps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS];
 183     uint8_t vps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS];
 184     uint32_t vps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS];
 185
 186     uint8_t vps_max_layer_id;
 187     uint16_t vps_num_layer_sets_minus1;
 188     uint8_t layer_id_included_flag[HEVC_MAX_LAYER_SETS][HEVC_MAX_LAYERS];
 189
 190     uint8_t vps_timing_info_present_flag;
 191     uint32_t vps_num_units_in_tick;
 192     uint32_t vps_time_scale;
 193     uint8_t vps_poc_proportional_to_timing_flag;
 194     uint32_t vps_num_ticks_poc_diff_one_minus1;
 195     uint16_t vps_num_hrd_parameters;
 196     uint16_t hrd_layer_set_idx[HEVC_MAX_LAYER_SETS];
 197     uint8_t cprms_present_flag[HEVC_MAX_LAYER_SETS];
 198     H265RawHRDParameters hrd_parameters[HEVC_MAX_LAYER_SETS];
 199
 200     uint8_t vps_extension_flag;
 201     H265RawPSExtensionData extension_data;
 202 } H265RawVPS;
 203
 204 typedef struct H265RawSTRefPicSet {
 205     uint8_t inter_ref_pic_set_prediction_flag;
 206
 207     uint8_t delta_idx_minus1;
 208     uint8_t delta_rps_sign;
 209     uint16_t abs_delta_rps_minus1;
 210
 211     uint8_t used_by_curr_pic_flag[HEVC_MAX_REFS];
 212     uint8_t use_delta_flag[HEVC_MAX_REFS];
 213
 214     uint8_t num_negative_pics;
 215     uint8_t num_positive_pics;
 216     uint16_t delta_poc_s0_minus1[HEVC_MAX_REFS];
 217     uint8_t used_by_curr_pic_s0_flag[HEVC_MAX_REFS];
 218     uint16_t delta_poc_s1_minus1[HEVC_MAX_REFS];
 219     uint8_t used_by_curr_pic_s1_flag[HEVC_MAX_REFS];
 220 } H265RawSTRefPicSet;
 221
 222 typedef struct H265RawScalingList {
 223     uint8_t scaling_list_pred_mode_flag[4][6];
 224     uint8_t scaling_list_pred_matrix_id_delta[4][6];
 225     int16_t scaling_list_dc_coef_minus8[4][6];
 226     int8_t scaling_list_delta_coeff[4][6][64];
 227 } H265RawScalingList;
 228
 229 typedef struct H265RawSPS {
 230     H265RawNALUnitHeader nal_unit_header;
 231
 232     uint8_t sps_video_parameter_set_id;
 233
 234     uint8_t sps_max_sub_layers_minus1;
 235     uint8_t sps_temporal_id_nesting_flag;
 236
 237     H265RawProfileTierLevel profile_tier_level;
 238
 239     uint8_t sps_seq_parameter_set_id;
 240
 241     uint8_t chroma_format_idc;
 242     uint8_t separate_colour_plane_flag;
 243
 244     uint16_t pic_width_in_luma_samples;
 245     uint16_t pic_height_in_luma_samples;
 246
 247     uint8_t conformance_window_flag;
 248     uint16_t conf_win_left_offset;
 249     uint16_t conf_win_right_offset;
 250     uint16_t conf_win_top_offset;
 251     uint16_t conf_win_bottom_offset;
 252
 253     uint8_t bit_depth_luma_minus8;
 254     uint8_t bit_depth_chroma_minus8;
 255
 256     uint8_t log2_max_pic_order_cnt_lsb_minus4;
 257
 258     uint8_t sps_sub_layer_ordering_info_present_flag;
 259     uint8_t sps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS];
 260     uint8_t sps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS];
 261     uint32_t sps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS];
 262
 263     uint8_t log2_min_luma_coding_block_size_minus3;
 264     uint8_t log2_diff_max_min_luma_coding_block_size;
 265     uint8_t log2_min_luma_transform_block_size_minus2;
 266     uint8_t log2_diff_max_min_luma_transform_block_size;
 267     uint8_t max_transform_hierarchy_depth_inter;
 268     uint8_t max_transform_hierarchy_depth_intra;
 269
 270     uint8_t scaling_list_enabled_flag;
 271     uint8_t sps_scaling_list_data_present_flag;
 272     H265RawScalingList scaling_list;
 273
 274     uint8_t amp_enabled_flag;
 275     uint8_t sample_adaptive_offset_enabled_flag;
 276
 277     uint8_t pcm_enabled_flag;
 278     uint8_t pcm_sample_bit_depth_luma_minus1;
 279     uint8_t pcm_sample_bit_depth_chroma_minus1;
 280     uint8_t log2_min_pcm_luma_coding_block_size_minus3;
 281     uint8_t log2_diff_max_min_pcm_luma_coding_block_size;
 282     uint8_t pcm_loop_filter_disabled_flag;
 283
 284     uint8_t num_short_term_ref_pic_sets;
 285     H265RawSTRefPicSet st_ref_pic_set[HEVC_MAX_SHORT_TERM_REF_PIC_SETS];
 286
 287     uint8_t long_term_ref_pics_present_flag;
 288     uint8_t num_long_term_ref_pics_sps;
 289     uint16_t lt_ref_pic_poc_lsb_sps[HEVC_MAX_LONG_TERM_REF_PICS];
 290     uint8_t used_by_curr_pic_lt_sps_flag[HEVC_MAX_LONG_TERM_REF_PICS];
 291
 292     uint8_t sps_temporal_mvp_enabled_flag;
 293     uint8_t strong_intra_smoothing_enabled_flag;
 294
 295     uint8_t vui_parameters_present_flag;
 296     H265RawVUI vui;
 297
 298     uint8_t sps_extension_present_flag;
 299     uint8_t sps_range_extension_flag;
 300     uint8_t sps_multilayer_extension_flag;
 301     uint8_t sps_3d_extension_flag;
 302     uint8_t sps_scc_extension_flag;
 303     uint8_t sps_extension_4bits;
 304
 305     H265RawPSExtensionData extension_data;
 306
 307     // Range extension.
 308     uint8_t transform_skip_rotation_enabled_flag;
 309     uint8_t transform_skip_context_enabled_flag;
 310     uint8_t implicit_rdpcm_enabled_flag;
 311     uint8_t explicit_rdpcm_enabled_flag;
 312     uint8_t extended_precision_processing_flag;
 313     uint8_t intra_smoothing_disabled_flag;
 314     uint8_t high_precision_offsets_enabled_flag;
 315     uint8_t persistent_rice_adaptation_enabled_flag;
 316     uint8_t cabac_bypass_alignment_enabled_flag;
 317
 318     // Screen content coding extension.
 319     uint8_t sps_curr_pic_ref_enabled_flag;
 320     uint8_t palette_mode_enabled_flag;
 321     uint8_t palette_max_size;
 322     uint8_t delta_palette_max_predictor_size;
 323     uint8_t sps_palette_predictor_initializer_present_flag;
 324     uint8_t sps_num_palette_predictor_initializer_minus1;
 325     uint16_t sps_palette_predictor_initializers[3][128];
 326
 327     uint8_t motion_vector_resolution_control_idc;
 328     uint8_t intra_boundary_filtering_disable_flag;
 329 } H265RawSPS;
 330
 331 typedef struct H265RawPPS {
 332     H265RawNALUnitHeader nal_unit_header;
 333
 334     uint8_t pps_pic_parameter_set_id;
 335     uint8_t pps_seq_parameter_set_id;
 336
 337     uint8_t dependent_slice_segments_enabled_flag;
 338     uint8_t output_flag_present_flag;
 339     uint8_t num_extra_slice_header_bits;
 340     uint8_t sign_data_hiding_enabled_flag;
 341     uint8_t cabac_init_present_flag;
 342
 343     uint8_t num_ref_idx_l0_default_active_minus1;
 344     uint8_t num_ref_idx_l1_default_active_minus1;
 345
 346     int8_t init_qp_minus26;
 347
 348     uint8_t constrained_intra_pred_flag;
 349     uint8_t transform_skip_enabled_flag;
 350     uint8_t cu_qp_delta_enabled_flag;
 351     uint8_t diff_cu_qp_delta_depth;
 352
 353     int8_t pps_cb_qp_offset;
 354     int8_t pps_cr_qp_offset;
 355     uint8_t pps_slice_chroma_qp_offsets_present_flag;
 356
 357     uint8_t weighted_pred_flag;
 358     uint8_t weighted_bipred_flag;
 359
 360     uint8_t transquant_bypass_enabled_flag;
 361     uint8_t tiles_enabled_flag;
 362     uint8_t entropy_coding_sync_enabled_flag;
 363
 364     uint8_t num_tile_columns_minus1;
 365     uint8_t num_tile_rows_minus1;
 366     uint8_t uniform_spacing_flag;
 367     uint16_t column_width_minus1[HEVC_MAX_TILE_COLUMNS];
 368     uint16_t row_height_minus1[HEVC_MAX_TILE_ROWS];
 369     uint8_t loop_filter_across_tiles_enabled_flag;
 370
 371     uint8_t pps_loop_filter_across_slices_enabled_flag;
 372     uint8_t deblocking_filter_control_present_flag;
 373     uint8_t deblocking_filter_override_enabled_flag;
 374     uint8_t pps_deblocking_filter_disabled_flag;
 375     int8_t pps_beta_offset_div2;
 376     int8_t pps_tc_offset_div2;
 377
 378     uint8_t pps_scaling_list_data_present_flag;
 379     H265RawScalingList scaling_list;
 380
 381     uint8_t lists_modification_present_flag;
 382     uint8_t log2_parallel_merge_level_minus2;
 383
 384     uint8_t slice_segment_header_extension_present_flag;
 385
 386     uint8_t pps_extension_present_flag;
 387     uint8_t pps_range_extension_flag;
 388     uint8_t pps_multilayer_extension_flag;
 389     uint8_t pps_3d_extension_flag;
 390     uint8_t pps_scc_extension_flag;
 391     uint8_t pps_extension_4bits;
 392
 393     H265RawPSExtensionData extension_data;
 394
 395     // Range extension.
 396     uint8_t log2_max_transform_skip_block_size_minus2;
 397     uint8_t cross_component_prediction_enabled_flag;
 398     uint8_t chroma_qp_offset_list_enabled_flag;
 399     uint8_t diff_cu_chroma_qp_offset_depth;
 400     uint8_t chroma_qp_offset_list_len_minus1;
 401     int8_t cb_qp_offset_list[6];
 402     int8_t cr_qp_offset_list[6];
 403     uint8_t log2_sao_offset_scale_luma;
 404     uint8_t log2_sao_offset_scale_chroma;
 405
 406     // Screen content coding extension.
 407     uint8_t pps_curr_pic_ref_enabled_flag;
 408     uint8_t residual_adaptive_colour_transform_enabled_flag;
 409     uint8_t pps_slice_act_qp_offsets_present_flag;
 410     int8_t pps_act_y_qp_offset_plus5;
 411     int8_t pps_act_cb_qp_offset_plus5;
 412     int8_t pps_act_cr_qp_offset_plus3;
 413
 414     uint8_t pps_palette_predictor_initializer_present_flag;
 415     uint8_t pps_num_palette_predictor_initializer;
 416     uint8_t monochrome_palette_flag;
 417     uint8_t luma_bit_depth_entry_minus8;
 418     uint8_t chroma_bit_depth_entry_minus8;
 419     uint16_t pps_palette_predictor_initializers[3][128];
 420 } H265RawPPS;
 421
 422 typedef struct H265RawAUD {
 423     H265RawNALUnitHeader nal_unit_header;
 424
 425     uint8_t pic_type;
 426 } H265RawAUD;
 427
 428 typedef struct  H265RawSliceHeader {
 429     H265RawNALUnitHeader nal_unit_header;
 430
 431     uint8_t first_slice_segment_in_pic_flag;
 432     uint8_t no_output_of_prior_pics_flag;
 433     uint8_t slice_pic_parameter_set_id;
 434
 435     uint8_t dependent_slice_segment_flag;
 436     uint16_t slice_segment_address;
 437
 438     uint8_t slice_reserved_flag[8];
 439     uint8_t slice_type;
 440
 441     uint8_t pic_output_flag;
 442     uint8_t colour_plane_id;
 443
 444     uint16_t slice_pic_order_cnt_lsb;
 445
 446     uint8_t short_term_ref_pic_set_sps_flag;
 447     H265RawSTRefPicSet short_term_ref_pic_set;
 448     uint8_t short_term_ref_pic_set_idx;
 449
 450     uint8_t num_long_term_sps;
 451     uint8_t num_long_term_pics;
 452     uint8_t lt_idx_sps[HEVC_MAX_REFS];
 453     uint8_t poc_lsb_lt[HEVC_MAX_REFS];
 454     uint8_t used_by_curr_pic_lt_flag[HEVC_MAX_REFS];
 455     uint8_t delta_poc_msb_present_flag[HEVC_MAX_REFS];
 456     uint32_t delta_poc_msb_cycle_lt[HEVC_MAX_REFS];
 457
 458     uint8_t slice_temporal_mvp_enabled_flag;
 459
 460     uint8_t slice_sao_luma_flag;
 461     uint8_t slice_sao_chroma_flag;
 462
 463     uint8_t num_ref_idx_active_override_flag;
 464     uint8_t num_ref_idx_l0_active_minus1;
 465     uint8_t num_ref_idx_l1_active_minus1;
 466
 467     uint8_t ref_pic_list_modification_flag_l0;
 468     uint8_t list_entry_l0[HEVC_MAX_REFS];
 469     uint8_t ref_pic_list_modification_flag_l1;
 470     uint8_t list_entry_l1[HEVC_MAX_REFS];
 471
 472     uint8_t mvd_l1_zero_flag;
 473     uint8_t cabac_init_flag;
 474     uint8_t collocated_from_l0_flag;
 475     uint8_t collocated_ref_idx;
 476
 477     uint8_t luma_log2_weight_denom;
 478     int8_t delta_chroma_log2_weight_denom;
 479     uint8_t luma_weight_l0_flag[HEVC_MAX_REFS];
 480     uint8_t chroma_weight_l0_flag[HEVC_MAX_REFS];
 481     int8_t delta_luma_weight_l0[HEVC_MAX_REFS];
 482     int16_t luma_offset_l0[HEVC_MAX_REFS];
 483     int8_t delta_chroma_weight_l0[HEVC_MAX_REFS][2];
 484     int16_t chroma_offset_l0[HEVC_MAX_REFS][2];
 485     uint8_t luma_weight_l1_flag[HEVC_MAX_REFS];
 486     uint8_t chroma_weight_l1_flag[HEVC_MAX_REFS];
 487     int8_t delta_luma_weight_l1[HEVC_MAX_REFS];
 488     int16_t luma_offset_l1[HEVC_MAX_REFS];
 489     int8_t delta_chroma_weight_l1[HEVC_MAX_REFS][2];
 490     int16_t chroma_offset_l1[HEVC_MAX_REFS][2];
 491
 492     uint8_t five_minus_max_num_merge_cand;
 493     uint8_t use_integer_mv_flag;
 494
 495     int8_t slice_qp_delta;
 496     int8_t slice_cb_qp_offset;
 497     int8_t slice_cr_qp_offset;
 498     int8_t slice_act_y_qp_offset;
 499     int8_t slice_act_cb_qp_offset;
 500     int8_t slice_act_cr_qp_offset;
 501     uint8_t cu_chroma_qp_offset_enabled_flag;
 502
 503     uint8_t deblocking_filter_override_flag;
 504     uint8_t slice_deblocking_filter_disabled_flag;
 505     int8_t slice_beta_offset_div2;
 506     int8_t slice_tc_offset_div2;
 507     uint8_t slice_loop_filter_across_slices_enabled_flag;
 508
 509     uint16_t num_entry_point_offsets;
 510     uint8_t offset_len_minus1;
 511     uint32_t entry_point_offset_minus1[HEVC_MAX_ENTRY_POINT_OFFSETS];
 512
 513     uint16_t slice_segment_header_extension_length;
 514     uint8_t slice_segment_header_extension_data_byte[256];
 515 } H265RawSliceHeader;
 516
 517
 518 typedef struct H265RawSlice {
 519     H265RawSliceHeader header;
 520
 521     uint8_t *data;
 522     size_t   data_size;
 523     int      data_bit_start;
 524     AVBufferRef *data_ref;
 525 } H265RawSlice;
 526
 527 typedef struct H265RawSEIMasteringDisplayColourVolume {
 528     uint16_t display_primaries_x[3];
 529     uint16_t display_primaries_y[3];
 530     uint16_t white_point_x;
 531     uint16_t white_point_y;
 532     uint32_t max_display_mastering_luminance;
 533     uint32_t min_display_mastering_luminance;
 534 } H265RawSEIMasteringDisplayColourVolume;
 535
 536 typedef struct H265RawSEIContentLightLevelInfo {
 537     uint16_t max_content_light_level;
 538     uint16_t max_pic_average_light_level;
 539 } H265RawSEIContentLightLevelInfo;
 540
 541 typedef struct H265RawSEIPayload {
 542     uint32_t payload_type;
 543     uint32_t payload_size;
 544     union {
 545         H265RawSEIMasteringDisplayColourVolume mastering_display;
 546         H265RawSEIContentLightLevelInfo content_light_level;
 547         struct {
 548             uint8_t *data;
 549             size_t data_length;
 550             AVBufferRef *data_ref;
 551         } other;
 552     } payload;
 553 } H265RawSEIPayload;
 554
 555 typedef struct H265RawSEI {
 556     H265RawNALUnitHeader nal_unit_header;
 557
 558     H265RawSEIPayload payload[H265_MAX_SEI_PAYLOADS];
 559     uint8_t payload_count;
 560 } H265RawSEI;
 561
 562 typedef struct CodedBitstreamH265Context {
 563     // Reader/writer context in common with the H.264 implementation.
 564     CodedBitstreamH2645Context common;
 565
 566     // All currently available parameter sets.  These are updated when
 567     // any parameter set NAL unit is read/written with this context.
 568     AVBufferRef *vps_ref[HEVC_MAX_VPS_COUNT];
 569     AVBufferRef *sps_ref[HEVC_MAX_SPS_COUNT];
 570     AVBufferRef *pps_ref[HEVC_MAX_PPS_COUNT];
 571     H265RawVPS *vps[HEVC_MAX_VPS_COUNT];
 572     H265RawSPS *sps[HEVC_MAX_SPS_COUNT];
 573     H265RawPPS *pps[HEVC_MAX_PPS_COUNT];
 574
 575     // The currently active parameter sets.  These are updated when any
 576     // NAL unit refers to the relevant parameter set.  These pointers
 577     // must also be present in the arrays above.
 578     const H265RawVPS *active_vps;
 579     const H265RawSPS *active_sps;
 580     const H265RawPPS *active_pps;
 581 } CodedBitstreamH265Context;
 582
 583
 584 #endif /* AVCODEC_CBS_H265_H */