FFmpeg  4.4.6
cbs_h264.h
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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_H264_H
20 #define AVCODEC_CBS_H264_H
21 
22 #include <stddef.h>
23 #include <stdint.h>
24 
25 #include "cbs.h"
26 #include "cbs_h2645.h"
27 #include "cbs_sei.h"
28 #include "h264.h"
29 
30 
31 typedef struct H264RawNALUnitHeader {
34 
38 
39 typedef struct H264RawScalingList {
40  int8_t delta_scale[64];
42 
43 typedef struct H264RawHRD {
47 
51 
56 } H264RawHRD;
57 
58 typedef struct H264RawVUI {
61  uint16_t sar_width;
62  uint16_t sar_height;
63 
66 
74 
78 
81  uint32_t time_scale;
83 
89 
91 
100 } H264RawVUI;
101 
102 typedef struct H264RawSPS {
104 
114 
116 
122 
127 
136 
139 
142 
146 
152 
155 } H264RawSPS;
156 
157 typedef struct H264RawSPSExtension {
159 
161 
167 
170 
171 typedef struct H264RawPPS {
173 
176 
179 
188 
191 
194 
197 
201 
204 
206 
209 
214 
216 } H264RawPPS;
217 
218 typedef struct H264RawAUD {
220 
222 } H264RawAUD;
223 
226  struct {
229  } nal, vcl;
231 
232 typedef struct H264RawSEIPicTimestamp {
248 
249 typedef struct H264RawSEIPicTiming {
256 
257 typedef struct H264RawSEIPanScanRect {
267 
268 typedef struct H264RawSEIRecoveryPoint {
274 
283 
284 typedef struct H264RawSEI {
287 } H264RawSEI;
288 
289 typedef struct H264RawSliceHeader {
291 
294 
296 
298 
299  uint16_t frame_num;
302 
303  uint16_t idr_pic_id;
304 
308 
311 
315 
318  struct {
323 
326 
333 
340 
343 
345  struct {
352 
354 
356 
359 
363 
366 
367 typedef struct H264RawSlice {
369 
372  size_t data_size;
374 } H264RawSlice;
375 
376 typedef struct H264RawFiller {
378 
379  uint32_t filler_size;
380 } H264RawFiller;
381 
382 
384  // Reader/writer context in common with the H.265 implementation.
386 
387  // All currently available parameter sets. These are updated when
388  // any parameter set NAL unit is read/written with this context.
393 
394  // The currently active parameter sets. These are updated when any
395  // NAL unit refers to the relevant parameter set. These pointers
396  // must also be present in the arrays above.
399 
400  // The NAL unit type of the most recent normal slice. This is required
401  // to be able to read/write auxiliary slices, because IdrPicFlag is
402  // otherwise unknown.
405 
406 #endif /* AVCODEC_CBS_H264_H */
uint8_t
int32_t
H.264 common definitions.
@ H264_MAX_SLICE_GROUPS
Definition: h264.h:96
@ H264_MAX_RPLM_COUNT
Definition: h264.h:84
@ H264_MAX_SPS_COUNT
Definition: h264.h:71
@ H264_MAX_REFS
Definition: h264.h:79
@ H264_MAX_MMCO_COUNT
Definition: h264.h:92
@ H264_MAX_PPS_COUNT
Definition: h264.h:73
@ H264_MAX_CPB_CNT
Definition: h264.h:99
A reference to a data buffer.
Definition: buffer.h:84
uint8_t last_slice_nal_unit_type
Definition: cbs_h264.h:403
const H264RawPPS * active_pps
Definition: cbs_h264.h:398
AVBufferRef * sps_ref[H264_MAX_SPS_COUNT]
Definition: cbs_h264.h:389
const H264RawSPS * active_sps
Definition: cbs_h264.h:397
AVBufferRef * pps_ref[H264_MAX_PPS_COUNT]
Definition: cbs_h264.h:390
H264RawSPS * sps[H264_MAX_SPS_COUNT]
Definition: cbs_h264.h:391
H264RawPPS * pps[H264_MAX_PPS_COUNT]
Definition: cbs_h264.h:392
CodedBitstreamH2645Context common
Definition: cbs_h264.h:385
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:219
uint8_t primary_pic_type
Definition: cbs_h264.h:221
uint32_t filler_size
Definition: cbs_h264.h:379
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:377
uint8_t bit_rate_scale
Definition: cbs_h264.h:45
uint8_t dpb_output_delay_length_minus1
Definition: cbs_h264.h:54
uint8_t time_offset_length
Definition: cbs_h264.h:55
uint8_t cbr_flag[H264_MAX_CPB_CNT]
Definition: cbs_h264.h:50
uint32_t bit_rate_value_minus1[H264_MAX_CPB_CNT]
Definition: cbs_h264.h:48
uint32_t cpb_size_value_minus1[H264_MAX_CPB_CNT]
Definition: cbs_h264.h:49
uint8_t cpb_removal_delay_length_minus1
Definition: cbs_h264.h:53
uint8_t initial_cpb_removal_delay_length_minus1
Definition: cbs_h264.h:52
uint8_t cpb_size_scale
Definition: cbs_h264.h:46
uint8_t cpb_cnt_minus1
Definition: cbs_h264.h:44
uint8_t nal_ref_idc
Definition: cbs_h264.h:32
uint8_t svc_extension_flag
Definition: cbs_h264.h:35
uint8_t avc_3d_extension_flag
Definition: cbs_h264.h:36
uint8_t nal_unit_type
Definition: cbs_h264.h:33
H264RawScalingList scaling_list_8x8[6]
Definition: cbs_h264.h:213
int8_t chroma_qp_index_offset
Definition: cbs_h264.h:200
uint8_t more_rbsp_data
Definition: cbs_h264.h:205
uint8_t weighted_pred_flag
Definition: cbs_h264.h:195
uint8_t slice_group_change_direction_flag
Definition: cbs_h264.h:185
uint8_t pic_scaling_matrix_present_flag
Definition: cbs_h264.h:210
uint8_t * slice_group_id
Definition: cbs_h264.h:189
int8_t pic_init_qp_minus26
Definition: cbs_h264.h:198
uint16_t pic_size_in_map_units_minus1
Definition: cbs_h264.h:187
uint8_t seq_parameter_set_id
Definition: cbs_h264.h:175
int8_t second_chroma_qp_index_offset
Definition: cbs_h264.h:215
AVBufferRef * slice_group_id_ref
Definition: cbs_h264.h:190
uint8_t entropy_coding_mode_flag
Definition: cbs_h264.h:177
uint16_t slice_group_change_rate_minus1
Definition: cbs_h264.h:186
uint16_t top_left[H264_MAX_SLICE_GROUPS]
Definition: cbs_h264.h:183
uint8_t num_ref_idx_l0_default_active_minus1
Definition: cbs_h264.h:192
uint8_t redundant_pic_cnt_present_flag
Definition: cbs_h264.h:207
H264RawScalingList scaling_list_4x4[6]
Definition: cbs_h264.h:212
uint8_t bottom_field_pic_order_in_frame_present_flag
Definition: cbs_h264.h:178
uint16_t run_length_minus1[H264_MAX_SLICE_GROUPS]
Definition: cbs_h264.h:182
uint8_t num_ref_idx_l1_default_active_minus1
Definition: cbs_h264.h:193
uint8_t constrained_intra_pred_flag
Definition: cbs_h264.h:203
uint8_t pic_parameter_set_id
Definition: cbs_h264.h:174
uint16_t bottom_right[H264_MAX_SLICE_GROUPS]
Definition: cbs_h264.h:184
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:172
int8_t pic_init_qs_minus26
Definition: cbs_h264.h:199
uint8_t num_slice_groups_minus1
Definition: cbs_h264.h:180
uint8_t slice_group_map_type
Definition: cbs_h264.h:181
uint8_t weighted_bipred_idc
Definition: cbs_h264.h:196
uint8_t pic_scaling_list_present_flag[12]
Definition: cbs_h264.h:211
uint8_t deblocking_filter_control_present_flag
Definition: cbs_h264.h:202
uint8_t transform_8x8_mode_flag
Definition: cbs_h264.h:208
struct H264RawSEIBufferingPeriod::@27 vcl
struct H264RawSEIBufferingPeriod::@27 nal
uint32_t initial_cpb_removal_delay_offset[H264_MAX_CPB_CNT]
Definition: cbs_h264.h:228
uint32_t initial_cpb_removal_delay[H264_MAX_CPB_CNT]
Definition: cbs_h264.h:227
uint16_t display_orientation_repetition_period
Definition: cbs_h264.h:280
uint8_t display_orientation_extension_flag
Definition: cbs_h264.h:281
uint8_t display_orientation_cancel_flag
Definition: cbs_h264.h:276
int32_t pan_scan_rect_right_offset[3]
Definition: cbs_h264.h:262
int32_t pan_scan_rect_top_offset[3]
Definition: cbs_h264.h:263
uint8_t pan_scan_cnt_minus1
Definition: cbs_h264.h:260
uint16_t pan_scan_rect_repetition_period
Definition: cbs_h264.h:265
int32_t pan_scan_rect_bottom_offset[3]
Definition: cbs_h264.h:264
uint8_t pan_scan_rect_cancel_flag
Definition: cbs_h264.h:259
int32_t pan_scan_rect_left_offset[3]
Definition: cbs_h264.h:261
uint32_t pan_scan_rect_id
Definition: cbs_h264.h:258
uint8_t cnt_dropped_flag
Definition: cbs_h264.h:238
uint8_t full_timestamp_flag
Definition: cbs_h264.h:236
uint8_t discontinuity_flag
Definition: cbs_h264.h:237
uint8_t nuit_field_based_flag
Definition: cbs_h264.h:234
uint32_t cpb_removal_delay
Definition: cbs_h264.h:250
uint32_t dpb_output_delay
Definition: cbs_h264.h:251
uint8_t clock_timestamp_flag[3]
Definition: cbs_h264.h:253
H264RawSEIPicTimestamp timestamp[3]
Definition: cbs_h264.h:254
uint8_t pic_struct
Definition: cbs_h264.h:252
uint8_t changing_slice_group_idc
Definition: cbs_h264.h:272
uint16_t recovery_frame_cnt
Definition: cbs_h264.h:269
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:285
SEIRawMessageList message_list
Definition: cbs_h264.h:286
uint8_t aux_format_idc
Definition: cbs_h264.h:162
uint16_t alpha_transparent_value
Definition: cbs_h264.h:166
uint8_t additional_extension_flag
Definition: cbs_h264.h:168
uint8_t bit_depth_aux_minus8
Definition: cbs_h264.h:163
uint16_t alpha_opaque_value
Definition: cbs_h264.h:165
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:158
uint8_t seq_parameter_set_id
Definition: cbs_h264.h:160
uint8_t alpha_incr_flag
Definition: cbs_h264.h:164
uint8_t profile_idc
Definition: cbs_h264.h:105
uint8_t constraint_set1_flag
Definition: cbs_h264.h:107
H264RawScalingList scaling_list_4x4[6]
Definition: cbs_h264.h:125
int32_t offset_for_non_ref_pic
Definition: cbs_h264.h:132
uint16_t pic_width_in_mbs_minus1
Definition: cbs_h264.h:140
uint8_t log2_max_frame_num_minus4
Definition: cbs_h264.h:128
uint8_t frame_cropping_flag
Definition: cbs_h264.h:147
uint16_t frame_crop_top_offset
Definition: cbs_h264.h:150
uint8_t reserved_zero_2bits
Definition: cbs_h264.h:112
uint8_t pic_order_cnt_type
Definition: cbs_h264.h:129
int32_t offset_for_top_to_bottom_field
Definition: cbs_h264.h:133
uint8_t mb_adaptive_frame_field_flag
Definition: cbs_h264.h:144
uint16_t frame_crop_left_offset
Definition: cbs_h264.h:148
uint8_t constraint_set3_flag
Definition: cbs_h264.h:109
uint8_t chroma_format_idc
Definition: cbs_h264.h:117
uint8_t constraint_set0_flag
Definition: cbs_h264.h:106
uint8_t separate_colour_plane_flag
Definition: cbs_h264.h:118
uint8_t constraint_set4_flag
Definition: cbs_h264.h:110
uint8_t num_ref_frames_in_pic_order_cnt_cycle
Definition: cbs_h264.h:134
uint8_t frame_mbs_only_flag
Definition: cbs_h264.h:143
uint8_t direct_8x8_inference_flag
Definition: cbs_h264.h:145
uint16_t frame_crop_bottom_offset
Definition: cbs_h264.h:151
uint8_t seq_scaling_matrix_present_flag
Definition: cbs_h264.h:123
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:103
uint8_t qpprime_y_zero_transform_bypass_flag
Definition: cbs_h264.h:121
uint8_t seq_scaling_list_present_flag[12]
Definition: cbs_h264.h:124
uint8_t log2_max_pic_order_cnt_lsb_minus4
Definition: cbs_h264.h:130
uint8_t constraint_set2_flag
Definition: cbs_h264.h:108
H264RawScalingList scaling_list_8x8[6]
Definition: cbs_h264.h:126
uint8_t gaps_in_frame_num_allowed_flag
Definition: cbs_h264.h:138
H264RawVUI vui
Definition: cbs_h264.h:154
uint8_t delta_pic_order_always_zero_flag
Definition: cbs_h264.h:131
uint8_t bit_depth_luma_minus8
Definition: cbs_h264.h:119
uint8_t seq_parameter_set_id
Definition: cbs_h264.h:115
uint8_t bit_depth_chroma_minus8
Definition: cbs_h264.h:120
int32_t offset_for_ref_frame[256]
Definition: cbs_h264.h:135
uint16_t pic_height_in_map_units_minus1
Definition: cbs_h264.h:141
uint16_t frame_crop_right_offset
Definition: cbs_h264.h:149
uint8_t level_idc
Definition: cbs_h264.h:113
uint8_t constraint_set5_flag
Definition: cbs_h264.h:111
uint8_t max_num_ref_frames
Definition: cbs_h264.h:137
uint8_t vui_parameters_present_flag
Definition: cbs_h264.h:153
int8_t delta_scale[64]
Definition: cbs_h264.h:40
uint16_t slice_group_change_cycle
Definition: cbs_h264.h:364
uint8_t ref_pic_list_modification_flag_l0
Definition: cbs_h264.h:316
int32_t abs_diff_pic_num_minus1
Definition: cbs_h264.h:320
int8_t slice_qs_delta
Definition: cbs_h264.h:358
uint16_t idr_pic_id
Definition: cbs_h264.h:303
uint8_t max_long_term_frame_idx_plus1
Definition: cbs_h264.h:350
uint8_t chroma_weight_l0_flag[H264_MAX_REFS]
Definition: cbs_h264.h:330
uint8_t memory_management_control_operation
Definition: cbs_h264.h:346
uint8_t luma_weight_l0_flag[H264_MAX_REFS]
Definition: cbs_h264.h:327
struct H264RawSliceHeader::@28 rplm_l0[H264_MAX_RPLM_COUNT]
uint8_t adaptive_ref_pic_marking_mode_flag
Definition: cbs_h264.h:344
int8_t luma_weight_l1[H264_MAX_REFS]
Definition: cbs_h264.h:335
uint8_t redundant_pic_cnt
Definition: cbs_h264.h:309
uint8_t chroma_log2_weight_denom
Definition: cbs_h264.h:325
uint8_t pic_parameter_set_id
Definition: cbs_h264.h:295
uint8_t direct_spatial_mv_pred_flag
Definition: cbs_h264.h:310
uint8_t sp_for_switch_flag
Definition: cbs_h264.h:357
uint8_t num_ref_idx_l1_active_minus1
Definition: cbs_h264.h:314
int8_t slice_qp_delta
Definition: cbs_h264.h:355
int8_t chroma_weight_l0[H264_MAX_REFS][2]
Definition: cbs_h264.h:331
int8_t slice_beta_offset_div2
Definition: cbs_h264.h:362
uint8_t long_term_pic_num
Definition: cbs_h264.h:321
uint16_t frame_num
Definition: cbs_h264.h:299
uint8_t no_output_of_prior_pics_flag
Definition: cbs_h264.h:341
int8_t luma_offset_l1[H264_MAX_REFS]
Definition: cbs_h264.h:336
int8_t slice_alpha_c0_offset_div2
Definition: cbs_h264.h:361
int32_t delta_pic_order_cnt[2]
Definition: cbs_h264.h:307
uint8_t ref_pic_list_modification_flag_l1
Definition: cbs_h264.h:317
int8_t chroma_weight_l1[H264_MAX_REFS][2]
Definition: cbs_h264.h:338
uint8_t colour_plane_id
Definition: cbs_h264.h:297
uint8_t bottom_field_flag
Definition: cbs_h264.h:301
uint8_t slice_type
Definition: cbs_h264.h:293
uint8_t disable_deblocking_filter_idc
Definition: cbs_h264.h:360
uint8_t field_pic_flag
Definition: cbs_h264.h:300
uint32_t first_mb_in_slice
Definition: cbs_h264.h:292
uint8_t chroma_weight_l1_flag[H264_MAX_REFS]
Definition: cbs_h264.h:337
uint8_t modification_of_pic_nums_idc
Definition: cbs_h264.h:319
int8_t luma_weight_l0[H264_MAX_REFS]
Definition: cbs_h264.h:328
int32_t delta_pic_order_cnt_bottom
Definition: cbs_h264.h:306
uint8_t num_ref_idx_active_override_flag
Definition: cbs_h264.h:312
uint8_t luma_log2_weight_denom
Definition: cbs_h264.h:324
uint8_t cabac_init_idc
Definition: cbs_h264.h:353
uint8_t num_ref_idx_l0_active_minus1
Definition: cbs_h264.h:313
H264RawNALUnitHeader nal_unit_header
Definition: cbs_h264.h:290
struct H264RawSliceHeader::@28 rplm_l1[H264_MAX_RPLM_COUNT]
int32_t difference_of_pic_nums_minus1
Definition: cbs_h264.h:347
uint8_t long_term_frame_idx
Definition: cbs_h264.h:349
uint16_t pic_order_cnt_lsb
Definition: cbs_h264.h:305
uint8_t luma_weight_l1_flag[H264_MAX_REFS]
Definition: cbs_h264.h:334
int8_t chroma_offset_l0[H264_MAX_REFS][2]
Definition: cbs_h264.h:332
int8_t chroma_offset_l1[H264_MAX_REFS][2]
Definition: cbs_h264.h:339
int8_t luma_offset_l0[H264_MAX_REFS]
Definition: cbs_h264.h:329
uint8_t long_term_reference_flag
Definition: cbs_h264.h:342
struct H264RawSliceHeader::@29 mmco[H264_MAX_MMCO_COUNT]
AVBufferRef * data_ref
Definition: cbs_h264.h:371
size_t data_size
Definition: cbs_h264.h:372
int data_bit_start
Definition: cbs_h264.h:373
H264RawSliceHeader header
Definition: cbs_h264.h:368
uint8_t * data
Definition: cbs_h264.h:370
uint8_t log2_max_mv_length_vertical
Definition: cbs_h264.h:97
uint8_t video_signal_type_present_flag
Definition: cbs_h264.h:67
uint8_t pic_struct_present_flag
Definition: cbs_h264.h:90
uint8_t overscan_info_present_flag
Definition: cbs_h264.h:64
H264RawHRD nal_hrd_parameters
Definition: cbs_h264.h:85
uint8_t max_bits_per_mb_denom
Definition: cbs_h264.h:95
uint8_t chroma_loc_info_present_flag
Definition: cbs_h264.h:75
uint8_t aspect_ratio_info_present_flag
Definition: cbs_h264.h:59
uint8_t matrix_coefficients
Definition: cbs_h264.h:73
uint8_t bitstream_restriction_flag
Definition: cbs_h264.h:92
uint8_t max_dec_frame_buffering
Definition: cbs_h264.h:99
H264RawHRD vcl_hrd_parameters
Definition: cbs_h264.h:87
uint32_t time_scale
Definition: cbs_h264.h:81
uint8_t video_full_range_flag
Definition: cbs_h264.h:69
uint8_t video_format
Definition: cbs_h264.h:68
uint8_t colour_primaries
Definition: cbs_h264.h:71
uint16_t sar_width
Definition: cbs_h264.h:61
uint8_t aspect_ratio_idc
Definition: cbs_h264.h:60
uint8_t chroma_sample_loc_type_bottom_field
Definition: cbs_h264.h:77
uint32_t num_units_in_tick
Definition: cbs_h264.h:80
uint16_t sar_height
Definition: cbs_h264.h:62
uint8_t colour_description_present_flag
Definition: cbs_h264.h:70
uint8_t overscan_appropriate_flag
Definition: cbs_h264.h:65
uint8_t timing_info_present_flag
Definition: cbs_h264.h:79
uint8_t max_bytes_per_pic_denom
Definition: cbs_h264.h:94
uint8_t vcl_hrd_parameters_present_flag
Definition: cbs_h264.h:86
uint8_t max_num_reorder_frames
Definition: cbs_h264.h:98
uint8_t transfer_characteristics
Definition: cbs_h264.h:72
uint8_t low_delay_hrd_flag
Definition: cbs_h264.h:88
uint8_t log2_max_mv_length_horizontal
Definition: cbs_h264.h:96
uint8_t nal_hrd_parameters_present_flag
Definition: cbs_h264.h:84
uint8_t fixed_frame_rate_flag
Definition: cbs_h264.h:82
uint8_t chroma_sample_loc_type_top_field
Definition: cbs_h264.h:76
uint8_t motion_vectors_over_pic_boundaries_flag
Definition: cbs_h264.h:93