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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 "cbs_sei.h"
27 #include "hevc.h"
28 
29 typedef struct H265RawNALUnitHeader {
30     uint8_t nal_unit_type;
31     uint8_t nuh_layer_id;
32     uint8_t nuh_temporal_id_plus1;
33 } H265RawNALUnitHeader;
34 
35 typedef struct H265RawProfileTierLevel {
36     uint8_t general_profile_space;
37     uint8_t general_tier_flag;
38     uint8_t general_profile_idc;
39 
40     uint8_t general_profile_compatibility_flag[32];
41 
42     uint8_t general_progressive_source_flag;
43     uint8_t general_interlaced_source_flag;
44     uint8_t general_non_packed_constraint_flag;
45     uint8_t general_frame_only_constraint_flag;
46 
47     uint8_t general_max_12bit_constraint_flag;
48     uint8_t general_max_10bit_constraint_flag;
49     uint8_t general_max_8bit_constraint_flag;
50     uint8_t general_max_422chroma_constraint_flag;
51     uint8_t general_max_420chroma_constraint_flag;
52     uint8_t general_max_monochrome_constraint_flag;
53     uint8_t general_intra_constraint_flag;
54     uint8_t general_one_picture_only_constraint_flag;
55     uint8_t general_lower_bit_rate_constraint_flag;
56     uint8_t general_max_14bit_constraint_flag;
57 
58     uint8_t general_inbld_flag;
59 
60     uint8_t general_level_idc;
61 
62     uint8_t sub_layer_profile_present_flag[HEVC_MAX_SUB_LAYERS];
63     uint8_t sub_layer_level_present_flag[HEVC_MAX_SUB_LAYERS];
64 
65     uint8_t sub_layer_profile_space[HEVC_MAX_SUB_LAYERS];
66     uint8_t sub_layer_tier_flag[HEVC_MAX_SUB_LAYERS];
67     uint8_t sub_layer_profile_idc[HEVC_MAX_SUB_LAYERS];
68 
69     uint8_t sub_layer_profile_compatibility_flag[HEVC_MAX_SUB_LAYERS][32];
70 
71     uint8_t sub_layer_progressive_source_flag[HEVC_MAX_SUB_LAYERS];
72     uint8_t sub_layer_interlaced_source_flag[HEVC_MAX_SUB_LAYERS];
73     uint8_t sub_layer_non_packed_constraint_flag[HEVC_MAX_SUB_LAYERS];
74     uint8_t sub_layer_frame_only_constraint_flag[HEVC_MAX_SUB_LAYERS];
75 
76     uint8_t sub_layer_max_12bit_constraint_flag[HEVC_MAX_SUB_LAYERS];
77     uint8_t sub_layer_max_10bit_constraint_flag[HEVC_MAX_SUB_LAYERS];
78     uint8_t sub_layer_max_8bit_constraint_flag[HEVC_MAX_SUB_LAYERS];
79     uint8_t sub_layer_max_422chroma_constraint_flag[HEVC_MAX_SUB_LAYERS];
80     uint8_t sub_layer_max_420chroma_constraint_flag[HEVC_MAX_SUB_LAYERS];
81     uint8_t sub_layer_max_monochrome_constraint_flag[HEVC_MAX_SUB_LAYERS];
82     uint8_t sub_layer_intra_constraint_flag[HEVC_MAX_SUB_LAYERS];
83     uint8_t sub_layer_one_picture_only_constraint_flag[HEVC_MAX_SUB_LAYERS];
84     uint8_t sub_layer_lower_bit_rate_constraint_flag[HEVC_MAX_SUB_LAYERS];
85     uint8_t sub_layer_max_14bit_constraint_flag[HEVC_MAX_SUB_LAYERS];
86 
87     uint8_t sub_layer_inbld_flag[HEVC_MAX_SUB_LAYERS];
88 
89     uint8_t sub_layer_level_idc[HEVC_MAX_SUB_LAYERS];
90 } H265RawProfileTierLevel;
91 
92 typedef struct H265RawSubLayerHRDParameters {
93     uint32_t bit_rate_value_minus1[HEVC_MAX_CPB_CNT];
94     uint32_t cpb_size_value_minus1[HEVC_MAX_CPB_CNT];
95     uint32_t cpb_size_du_value_minus1[HEVC_MAX_CPB_CNT];
96     uint32_t bit_rate_du_value_minus1[HEVC_MAX_CPB_CNT];
97     uint8_t cbr_flag[HEVC_MAX_CPB_CNT];
98 } H265RawSubLayerHRDParameters;
99 
100 typedef struct H265RawHRDParameters {
101     uint8_t nal_hrd_parameters_present_flag;
102     uint8_t vcl_hrd_parameters_present_flag;
103 
104     uint8_t sub_pic_hrd_params_present_flag;
105     uint8_t tick_divisor_minus2;
106     uint8_t du_cpb_removal_delay_increment_length_minus1;
107     uint8_t sub_pic_cpb_params_in_pic_timing_sei_flag;
108     uint8_t dpb_output_delay_du_length_minus1;
109 
110     uint8_t bit_rate_scale;
111     uint8_t cpb_size_scale;
112     uint8_t cpb_size_du_scale;
113 
114     uint8_t initial_cpb_removal_delay_length_minus1;
115     uint8_t au_cpb_removal_delay_length_minus1;
116     uint8_t dpb_output_delay_length_minus1;
117 
118     uint8_t fixed_pic_rate_general_flag[HEVC_MAX_SUB_LAYERS];
119     uint8_t fixed_pic_rate_within_cvs_flag[HEVC_MAX_SUB_LAYERS];
120     uint16_t elemental_duration_in_tc_minus1[HEVC_MAX_SUB_LAYERS];
121     uint8_t low_delay_hrd_flag[HEVC_MAX_SUB_LAYERS];
122     uint8_t cpb_cnt_minus1[HEVC_MAX_SUB_LAYERS];
123     H265RawSubLayerHRDParameters nal_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS];
124     H265RawSubLayerHRDParameters vcl_sub_layer_hrd_parameters[HEVC_MAX_SUB_LAYERS];
125 } H265RawHRDParameters;
126 
127 typedef struct H265RawVUI {
128     uint8_t aspect_ratio_info_present_flag;
129     uint8_t aspect_ratio_idc;
130     uint16_t sar_width;
131     uint16_t sar_height;
132 
133     uint8_t overscan_info_present_flag;
134     uint8_t overscan_appropriate_flag;
135 
136     uint8_t video_signal_type_present_flag;
137     uint8_t video_format;
138     uint8_t video_full_range_flag;
139     uint8_t colour_description_present_flag;
140     uint8_t colour_primaries;
141     uint8_t transfer_characteristics;
142     uint8_t matrix_coefficients;
143 
144     uint8_t chroma_loc_info_present_flag;
145     uint8_t chroma_sample_loc_type_top_field;
146     uint8_t chroma_sample_loc_type_bottom_field;
147 
148     uint8_t neutral_chroma_indication_flag;
149     uint8_t field_seq_flag;
150     uint8_t frame_field_info_present_flag;
151 
152     uint8_t default_display_window_flag;
153     uint16_t def_disp_win_left_offset;
154     uint16_t def_disp_win_right_offset;
155     uint16_t def_disp_win_top_offset;
156     uint16_t def_disp_win_bottom_offset;
157 
158     uint8_t vui_timing_info_present_flag;
159     uint32_t vui_num_units_in_tick;
160     uint32_t vui_time_scale;
161     uint8_t vui_poc_proportional_to_timing_flag;
162     uint32_t vui_num_ticks_poc_diff_one_minus1;
163     uint8_t vui_hrd_parameters_present_flag;
164     H265RawHRDParameters hrd_parameters;
165 
166     uint8_t bitstream_restriction_flag;
167     uint8_t tiles_fixed_structure_flag;
168     uint8_t motion_vectors_over_pic_boundaries_flag;
169     uint8_t restricted_ref_pic_lists_flag;
170     uint16_t min_spatial_segmentation_idc;
171     uint8_t max_bytes_per_pic_denom;
172     uint8_t max_bits_per_min_cu_denom;
173     uint8_t log2_max_mv_length_horizontal;
174     uint8_t log2_max_mv_length_vertical;
175 } H265RawVUI;
176 
177 typedef struct H265RawExtensionData {
178     uint8_t     *data;
179     AVBufferRef *data_ref;
180     size_t       bit_length;
181 } H265RawExtensionData;
182 
183 typedef struct H265RawVPS {
184     H265RawNALUnitHeader nal_unit_header;
185 
186     uint8_t vps_video_parameter_set_id;
187 
188     uint8_t vps_base_layer_internal_flag;
189     uint8_t vps_base_layer_available_flag;
190     uint8_t vps_max_layers_minus1;
191     uint8_t vps_max_sub_layers_minus1;
192     uint8_t vps_temporal_id_nesting_flag;
193 
194     H265RawProfileTierLevel profile_tier_level;
195 
196     uint8_t vps_sub_layer_ordering_info_present_flag;
197     uint8_t vps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS];
198     uint8_t vps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS];
199     uint32_t vps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS];
200 
201     uint8_t vps_max_layer_id;
202     uint16_t vps_num_layer_sets_minus1;
203     uint8_t layer_id_included_flag[HEVC_MAX_LAYER_SETS][HEVC_MAX_LAYERS];
204 
205     uint8_t vps_timing_info_present_flag;
206     uint32_t vps_num_units_in_tick;
207     uint32_t vps_time_scale;
208     uint8_t vps_poc_proportional_to_timing_flag;
209     uint32_t vps_num_ticks_poc_diff_one_minus1;
210     uint16_t vps_num_hrd_parameters;
211     uint16_t hrd_layer_set_idx[HEVC_MAX_LAYER_SETS];
212     uint8_t cprms_present_flag[HEVC_MAX_LAYER_SETS];
213     H265RawHRDParameters hrd_parameters[HEVC_MAX_LAYER_SETS];
214 
215     uint8_t vps_extension_flag;
216     H265RawExtensionData extension_data;
217 } H265RawVPS;
218 
219 typedef struct H265RawSTRefPicSet {
220     uint8_t inter_ref_pic_set_prediction_flag;
221 
222     uint8_t delta_idx_minus1;
223     uint8_t delta_rps_sign;
224     uint16_t abs_delta_rps_minus1;
225 
226     uint8_t used_by_curr_pic_flag[HEVC_MAX_REFS];
227     uint8_t use_delta_flag[HEVC_MAX_REFS];
228 
229     uint8_t num_negative_pics;
230     uint8_t num_positive_pics;
231     uint16_t delta_poc_s0_minus1[HEVC_MAX_REFS];
232     uint8_t used_by_curr_pic_s0_flag[HEVC_MAX_REFS];
233     uint16_t delta_poc_s1_minus1[HEVC_MAX_REFS];
234     uint8_t used_by_curr_pic_s1_flag[HEVC_MAX_REFS];
235 } H265RawSTRefPicSet;
236 
237 typedef struct H265RawScalingList {
238     uint8_t scaling_list_pred_mode_flag[4][6];
239     uint8_t scaling_list_pred_matrix_id_delta[4][6];
240     int16_t scaling_list_dc_coef_minus8[4][6];
241     int8_t scaling_list_delta_coeff[4][6][64];
242 } H265RawScalingList;
243 
244 typedef struct H265RawSPS {
245     H265RawNALUnitHeader nal_unit_header;
246 
247     uint8_t sps_video_parameter_set_id;
248 
249     uint8_t sps_max_sub_layers_minus1;
250     uint8_t sps_temporal_id_nesting_flag;
251 
252     H265RawProfileTierLevel profile_tier_level;
253 
254     uint8_t sps_seq_parameter_set_id;
255 
256     uint8_t chroma_format_idc;
257     uint8_t separate_colour_plane_flag;
258 
259     uint16_t pic_width_in_luma_samples;
260     uint16_t pic_height_in_luma_samples;
261 
262     uint8_t conformance_window_flag;
263     uint16_t conf_win_left_offset;
264     uint16_t conf_win_right_offset;
265     uint16_t conf_win_top_offset;
266     uint16_t conf_win_bottom_offset;
267 
268     uint8_t bit_depth_luma_minus8;
269     uint8_t bit_depth_chroma_minus8;
270 
271     uint8_t log2_max_pic_order_cnt_lsb_minus4;
272 
273     uint8_t sps_sub_layer_ordering_info_present_flag;
274     uint8_t sps_max_dec_pic_buffering_minus1[HEVC_MAX_SUB_LAYERS];
275     uint8_t sps_max_num_reorder_pics[HEVC_MAX_SUB_LAYERS];
276     uint32_t sps_max_latency_increase_plus1[HEVC_MAX_SUB_LAYERS];
277 
278     uint8_t log2_min_luma_coding_block_size_minus3;
279     uint8_t log2_diff_max_min_luma_coding_block_size;
280     uint8_t log2_min_luma_transform_block_size_minus2;
281     uint8_t log2_diff_max_min_luma_transform_block_size;
282     uint8_t max_transform_hierarchy_depth_inter;
283     uint8_t max_transform_hierarchy_depth_intra;
284 
285     uint8_t scaling_list_enabled_flag;
286     uint8_t sps_scaling_list_data_present_flag;
287     H265RawScalingList scaling_list;
288 
289     uint8_t amp_enabled_flag;
290     uint8_t sample_adaptive_offset_enabled_flag;
291 
292     uint8_t pcm_enabled_flag;
293     uint8_t pcm_sample_bit_depth_luma_minus1;
294     uint8_t pcm_sample_bit_depth_chroma_minus1;
295     uint8_t log2_min_pcm_luma_coding_block_size_minus3;
296     uint8_t log2_diff_max_min_pcm_luma_coding_block_size;
297     uint8_t pcm_loop_filter_disabled_flag;
298 
299     uint8_t num_short_term_ref_pic_sets;
300     H265RawSTRefPicSet st_ref_pic_set[HEVC_MAX_SHORT_TERM_REF_PIC_SETS];
301 
302     uint8_t long_term_ref_pics_present_flag;
303     uint8_t num_long_term_ref_pics_sps;
304     uint16_t lt_ref_pic_poc_lsb_sps[HEVC_MAX_LONG_TERM_REF_PICS];
305     uint8_t used_by_curr_pic_lt_sps_flag[HEVC_MAX_LONG_TERM_REF_PICS];
306 
307     uint8_t sps_temporal_mvp_enabled_flag;
308     uint8_t strong_intra_smoothing_enabled_flag;
309 
310     uint8_t vui_parameters_present_flag;
311     H265RawVUI vui;
312 
313     uint8_t sps_extension_present_flag;
314     uint8_t sps_range_extension_flag;
315     uint8_t sps_multilayer_extension_flag;
316     uint8_t sps_3d_extension_flag;
317     uint8_t sps_scc_extension_flag;
318     uint8_t sps_extension_4bits;
319 
320     H265RawExtensionData extension_data;
321 
322     // Range extension.
323     uint8_t transform_skip_rotation_enabled_flag;
324     uint8_t transform_skip_context_enabled_flag;
325     uint8_t implicit_rdpcm_enabled_flag;
326     uint8_t explicit_rdpcm_enabled_flag;
327     uint8_t extended_precision_processing_flag;
328     uint8_t intra_smoothing_disabled_flag;
329     uint8_t high_precision_offsets_enabled_flag;
330     uint8_t persistent_rice_adaptation_enabled_flag;
331     uint8_t cabac_bypass_alignment_enabled_flag;
332 
333     // Screen content coding extension.
334     uint8_t sps_curr_pic_ref_enabled_flag;
335     uint8_t palette_mode_enabled_flag;
336     uint8_t palette_max_size;
337     uint8_t delta_palette_max_predictor_size;
338     uint8_t sps_palette_predictor_initializer_present_flag;
339     uint8_t sps_num_palette_predictor_initializer_minus1;
340     uint16_t sps_palette_predictor_initializers[3][128];
341 
342     uint8_t motion_vector_resolution_control_idc;
343     uint8_t intra_boundary_filtering_disable_flag;
344 } H265RawSPS;
345 
346 typedef struct H265RawPPS {
347     H265RawNALUnitHeader nal_unit_header;
348 
349     uint8_t pps_pic_parameter_set_id;
350     uint8_t pps_seq_parameter_set_id;
351 
352     uint8_t dependent_slice_segments_enabled_flag;
353     uint8_t output_flag_present_flag;
354     uint8_t num_extra_slice_header_bits;
355     uint8_t sign_data_hiding_enabled_flag;
356     uint8_t cabac_init_present_flag;
357 
358     uint8_t num_ref_idx_l0_default_active_minus1;
359     uint8_t num_ref_idx_l1_default_active_minus1;
360 
361     int8_t init_qp_minus26;
362 
363     uint8_t constrained_intra_pred_flag;
364     uint8_t transform_skip_enabled_flag;
365     uint8_t cu_qp_delta_enabled_flag;
366     uint8_t diff_cu_qp_delta_depth;
367 
368     int8_t pps_cb_qp_offset;
369     int8_t pps_cr_qp_offset;
370     uint8_t pps_slice_chroma_qp_offsets_present_flag;
371 
372     uint8_t weighted_pred_flag;
373     uint8_t weighted_bipred_flag;
374 
375     uint8_t transquant_bypass_enabled_flag;
376     uint8_t tiles_enabled_flag;
377     uint8_t entropy_coding_sync_enabled_flag;
378 
379     uint8_t num_tile_columns_minus1;
380     uint8_t num_tile_rows_minus1;
381     uint8_t uniform_spacing_flag;
382     uint16_t column_width_minus1[HEVC_MAX_TILE_COLUMNS];
383     uint16_t row_height_minus1[HEVC_MAX_TILE_ROWS];
384     uint8_t loop_filter_across_tiles_enabled_flag;
385 
386     uint8_t pps_loop_filter_across_slices_enabled_flag;
387     uint8_t deblocking_filter_control_present_flag;
388     uint8_t deblocking_filter_override_enabled_flag;
389     uint8_t pps_deblocking_filter_disabled_flag;
390     int8_t pps_beta_offset_div2;
391     int8_t pps_tc_offset_div2;
392 
393     uint8_t pps_scaling_list_data_present_flag;
394     H265RawScalingList scaling_list;
395 
396     uint8_t lists_modification_present_flag;
397     uint8_t log2_parallel_merge_level_minus2;
398 
399     uint8_t slice_segment_header_extension_present_flag;
400 
401     uint8_t pps_extension_present_flag;
402     uint8_t pps_range_extension_flag;
403     uint8_t pps_multilayer_extension_flag;
404     uint8_t pps_3d_extension_flag;
405     uint8_t pps_scc_extension_flag;
406     uint8_t pps_extension_4bits;
407 
408     H265RawExtensionData extension_data;
409 
410     // Range extension.
411     uint8_t log2_max_transform_skip_block_size_minus2;
412     uint8_t cross_component_prediction_enabled_flag;
413     uint8_t chroma_qp_offset_list_enabled_flag;
414     uint8_t diff_cu_chroma_qp_offset_depth;
415     uint8_t chroma_qp_offset_list_len_minus1;
416     int8_t cb_qp_offset_list[6];
417     int8_t cr_qp_offset_list[6];
418     uint8_t log2_sao_offset_scale_luma;
419     uint8_t log2_sao_offset_scale_chroma;
420 
421     // Screen content coding extension.
422     uint8_t pps_curr_pic_ref_enabled_flag;
423     uint8_t residual_adaptive_colour_transform_enabled_flag;
424     uint8_t pps_slice_act_qp_offsets_present_flag;
425     int8_t pps_act_y_qp_offset_plus5;
426     int8_t pps_act_cb_qp_offset_plus5;
427     int8_t pps_act_cr_qp_offset_plus3;
428 
429     uint8_t pps_palette_predictor_initializer_present_flag;
430     uint8_t pps_num_palette_predictor_initializer;
431     uint8_t monochrome_palette_flag;
432     uint8_t luma_bit_depth_entry_minus8;
433     uint8_t chroma_bit_depth_entry_minus8;
434     uint16_t pps_palette_predictor_initializers[3][128];
435 } H265RawPPS;
436 
437 typedef struct H265RawAUD {
438     H265RawNALUnitHeader nal_unit_header;
439 
440     uint8_t pic_type;
441 } H265RawAUD;
442 
443 typedef struct  H265RawSliceHeader {
444     H265RawNALUnitHeader nal_unit_header;
445 
446     uint8_t first_slice_segment_in_pic_flag;
447     uint8_t no_output_of_prior_pics_flag;
448     uint8_t slice_pic_parameter_set_id;
449 
450     uint8_t dependent_slice_segment_flag;
451     uint16_t slice_segment_address;
452 
453     uint8_t slice_reserved_flag[8];
454     uint8_t slice_type;
455 
456     uint8_t pic_output_flag;
457     uint8_t colour_plane_id;
458 
459     uint16_t slice_pic_order_cnt_lsb;
460 
461     uint8_t short_term_ref_pic_set_sps_flag;
462     H265RawSTRefPicSet short_term_ref_pic_set;
463     uint8_t short_term_ref_pic_set_idx;
464 
465     uint8_t num_long_term_sps;
466     uint8_t num_long_term_pics;
467     uint8_t lt_idx_sps[HEVC_MAX_REFS];
468     uint8_t poc_lsb_lt[HEVC_MAX_REFS];
469     uint8_t used_by_curr_pic_lt_flag[HEVC_MAX_REFS];
470     uint8_t delta_poc_msb_present_flag[HEVC_MAX_REFS];
471     uint32_t delta_poc_msb_cycle_lt[HEVC_MAX_REFS];
472 
473     uint8_t slice_temporal_mvp_enabled_flag;
474 
475     uint8_t slice_sao_luma_flag;
476     uint8_t slice_sao_chroma_flag;
477 
478     uint8_t num_ref_idx_active_override_flag;
479     uint8_t num_ref_idx_l0_active_minus1;
480     uint8_t num_ref_idx_l1_active_minus1;
481 
482     uint8_t ref_pic_list_modification_flag_l0;
483     uint8_t list_entry_l0[HEVC_MAX_REFS];
484     uint8_t ref_pic_list_modification_flag_l1;
485     uint8_t list_entry_l1[HEVC_MAX_REFS];
486 
487     uint8_t mvd_l1_zero_flag;
488     uint8_t cabac_init_flag;
489     uint8_t collocated_from_l0_flag;
490     uint8_t collocated_ref_idx;
491 
492     uint8_t luma_log2_weight_denom;
493     int8_t delta_chroma_log2_weight_denom;
494     uint8_t luma_weight_l0_flag[HEVC_MAX_REFS];
495     uint8_t chroma_weight_l0_flag[HEVC_MAX_REFS];
496     int8_t delta_luma_weight_l0[HEVC_MAX_REFS];
497     int16_t luma_offset_l0[HEVC_MAX_REFS];
498     int8_t delta_chroma_weight_l0[HEVC_MAX_REFS][2];
499     int16_t chroma_offset_l0[HEVC_MAX_REFS][2];
500     uint8_t luma_weight_l1_flag[HEVC_MAX_REFS];
501     uint8_t chroma_weight_l1_flag[HEVC_MAX_REFS];
502     int8_t delta_luma_weight_l1[HEVC_MAX_REFS];
503     int16_t luma_offset_l1[HEVC_MAX_REFS];
504     int8_t delta_chroma_weight_l1[HEVC_MAX_REFS][2];
505     int16_t chroma_offset_l1[HEVC_MAX_REFS][2];
506 
507     uint8_t five_minus_max_num_merge_cand;
508     uint8_t use_integer_mv_flag;
509 
510     int8_t slice_qp_delta;
511     int8_t slice_cb_qp_offset;
512     int8_t slice_cr_qp_offset;
513     int8_t slice_act_y_qp_offset;
514     int8_t slice_act_cb_qp_offset;
515     int8_t slice_act_cr_qp_offset;
516     uint8_t cu_chroma_qp_offset_enabled_flag;
517 
518     uint8_t deblocking_filter_override_flag;
519     uint8_t slice_deblocking_filter_disabled_flag;
520     int8_t slice_beta_offset_div2;
521     int8_t slice_tc_offset_div2;
522     uint8_t slice_loop_filter_across_slices_enabled_flag;
523 
524     uint16_t num_entry_point_offsets;
525     uint8_t offset_len_minus1;
526     uint32_t entry_point_offset_minus1[HEVC_MAX_ENTRY_POINT_OFFSETS];
527 
528     uint16_t slice_segment_header_extension_length;
529     uint8_t slice_segment_header_extension_data_byte[256];
530 } H265RawSliceHeader;
531 
532 
533 typedef struct H265RawSlice {
534     H265RawSliceHeader header;
535 
536     uint8_t     *data;
537     AVBufferRef *data_ref;
538     size_t       data_size;
539     int          data_bit_start;
540 } H265RawSlice;
541 
542 
543 typedef struct H265RawSEIBufferingPeriod {
544     uint8_t  bp_seq_parameter_set_id;
545     uint8_t  irap_cpb_params_present_flag;
546     uint32_t cpb_delay_offset;
547     uint32_t dpb_delay_offset;
548     uint8_t  concatenation_flag;
549     uint32_t au_cpb_removal_delay_delta_minus1;
550 
551     uint32_t nal_initial_cpb_removal_delay[HEVC_MAX_CPB_CNT];
552     uint32_t nal_initial_cpb_removal_offset[HEVC_MAX_CPB_CNT];
553     uint32_t nal_initial_alt_cpb_removal_delay[HEVC_MAX_CPB_CNT];
554     uint32_t nal_initial_alt_cpb_removal_offset[HEVC_MAX_CPB_CNT];
555 
556     uint32_t vcl_initial_cpb_removal_delay[HEVC_MAX_CPB_CNT];
557     uint32_t vcl_initial_cpb_removal_offset[HEVC_MAX_CPB_CNT];
558     uint32_t vcl_initial_alt_cpb_removal_delay[HEVC_MAX_CPB_CNT];
559     uint32_t vcl_initial_alt_cpb_removal_offset[HEVC_MAX_CPB_CNT];
560 
561     uint8_t  use_alt_cpb_params_flag;
562 } H265RawSEIBufferingPeriod;
563 
564 typedef struct H265RawSEIPicTiming {
565     uint8_t pic_struct;
566     uint8_t source_scan_type;
567     uint8_t duplicate_flag;
568 
569     uint32_t au_cpb_removal_delay_minus1;
570     uint32_t pic_dpb_output_delay;
571     uint32_t pic_dpb_output_du_delay;
572 
573     uint16_t num_decoding_units_minus1;
574     uint8_t  du_common_cpb_removal_delay_flag;
575     uint32_t du_common_cpb_removal_delay_increment_minus1;
576     uint16_t num_nalus_in_du_minus1[HEVC_MAX_SLICE_SEGMENTS];
577     uint32_t du_cpb_removal_delay_increment_minus1[HEVC_MAX_SLICE_SEGMENTS];
578 } H265RawSEIPicTiming;
579 
580 typedef struct H265RawSEIPanScanRect {
581     uint32_t pan_scan_rect_id;
582     uint8_t  pan_scan_rect_cancel_flag;
583     uint8_t  pan_scan_cnt_minus1;
584     int32_t  pan_scan_rect_left_offset[3];
585     int32_t  pan_scan_rect_right_offset[3];
586     int32_t  pan_scan_rect_top_offset[3];
587     int32_t  pan_scan_rect_bottom_offset[3];
588     uint16_t pan_scan_rect_persistence_flag;
589 } H265RawSEIPanScanRect;
590 
591 typedef struct H265RawSEIRecoveryPoint {
592     int16_t recovery_poc_cnt;
593     uint8_t exact_match_flag;
594     uint8_t broken_link_flag;
595 } H265RawSEIRecoveryPoint;
596 
597 typedef struct H265RawSEIDisplayOrientation {
598     uint8_t display_orientation_cancel_flag;
599     uint8_t hor_flip;
600     uint8_t ver_flip;
601     uint16_t anticlockwise_rotation;
602     uint16_t display_orientation_repetition_period;
603     uint8_t display_orientation_persistence_flag;
604 } H265RawSEIDisplayOrientation;
605 
606 typedef struct H265RawSEIActiveParameterSets {
607     uint8_t active_video_parameter_set_id;
608     uint8_t self_contained_cvs_flag;
609     uint8_t no_parameter_set_update_flag;
610     uint8_t num_sps_ids_minus1;
611     uint8_t active_seq_parameter_set_id[HEVC_MAX_SPS_COUNT];
612     uint8_t layer_sps_idx[HEVC_MAX_LAYERS];
613 } H265RawSEIActiveParameterSets;
614 
615 typedef struct H265RawSEIDecodedPictureHash {
616     uint8_t  hash_type;
617     uint8_t  picture_md5[3][16];
618     uint16_t picture_crc[3];
619     uint32_t picture_checksum[3];
620 } H265RawSEIDecodedPictureHash;
621 
622 typedef struct H265RawSEITimeCode {
623     uint8_t  num_clock_ts;
624     uint8_t  clock_timestamp_flag[3];
625     uint8_t  units_field_based_flag[3];
626     uint8_t  counting_type[3];
627     uint8_t  full_timestamp_flag[3];
628     uint8_t  discontinuity_flag[3];
629     uint8_t  cnt_dropped_flag[3];
630     uint16_t n_frames[3];
631     uint8_t  seconds_value[3];
632     uint8_t  minutes_value[3];
633     uint8_t  hours_value[3];
634     uint8_t  seconds_flag[3];
635     uint8_t  minutes_flag[3];
636     uint8_t  hours_flag[3];
637     uint8_t  time_offset_length[3];
638     int32_t  time_offset_value[3];
639 } H265RawSEITimeCode;
640 
641 typedef struct H265RawSEIAlphaChannelInfo {
642     uint8_t  alpha_channel_cancel_flag;
643     uint8_t  alpha_channel_use_idc;
644     uint8_t  alpha_channel_bit_depth_minus8;
645     uint16_t alpha_transparent_value;
646     uint16_t alpha_opaque_value;
647     uint8_t  alpha_channel_incr_flag;
648     uint8_t  alpha_channel_clip_flag;
649     uint8_t  alpha_channel_clip_type_flag;
650 } H265RawSEIAlphaChannelInfo;
651 
652 typedef struct H265RawSEI {
653     H265RawNALUnitHeader nal_unit_header;
654     SEIRawMessageList    message_list;
655 } H265RawSEI;
656 
657 typedef struct CodedBitstreamH265Context {
658     // Reader/writer context in common with the H.264 implementation.
659     CodedBitstreamH2645Context common;
660 
661     // All currently available parameter sets.  These are updated when
662     // any parameter set NAL unit is read/written with this context.
663     AVBufferRef *vps_ref[HEVC_MAX_VPS_COUNT];
664     AVBufferRef *sps_ref[HEVC_MAX_SPS_COUNT];
665     AVBufferRef *pps_ref[HEVC_MAX_PPS_COUNT];
666     H265RawVPS *vps[HEVC_MAX_VPS_COUNT];
667     H265RawSPS *sps[HEVC_MAX_SPS_COUNT];
668     H265RawPPS *pps[HEVC_MAX_PPS_COUNT];
669 
670     // The currently active parameter sets.  These are updated when any
671     // NAL unit refers to the relevant parameter set.  These pointers
672     // must also be present in the arrays above.
673     const H265RawVPS *active_vps;
674     const H265RawSPS *active_sps;
675     const H265RawPPS *active_pps;
676 } CodedBitstreamH265Context;
677 
678 
679 #endif /* AVCODEC_CBS_H265_H */
680