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cbs_h264_syntax_template.c
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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 
20 {
21  int err;
22  av_unused int one = 1, zero = 0;
23  xu(1, rbsp_stop_one_bit, one, 1, 1);
24  while (byte_alignment(rw) != 0)
25  xu(1, rbsp_alignment_zero_bit, zero, 0, 0);
26 
27  return 0;
28 }
29 
31  H264RawNALUnitHeader *current,
32  uint32_t valid_type_mask)
33 {
34  int err;
35 
36  u(1, forbidden_zero_bit, 0, 0);
37  u(2, nal_ref_idc, 0, 3);
38  u(5, nal_unit_type, 0, 31);
39 
40  if (!(1 << current->nal_unit_type & valid_type_mask)) {
41  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid NAL unit type %d.\n",
42  current->nal_unit_type);
43  return AVERROR_INVALIDDATA;
44  }
45 
46  if (current->nal_unit_type == 14 ||
47  current->nal_unit_type == 20 ||
48  current->nal_unit_type == 21) {
49  if (current->nal_unit_type != 21)
50  flag(svc_extension_flag);
51  else
52  flag(avc_3d_extension_flag);
53 
54  if (current->svc_extension_flag) {
55  av_log(ctx->log_ctx, AV_LOG_ERROR, "SVC not supported.\n");
56  return AVERROR_PATCHWELCOME;
57 
58  } else if (current->avc_3d_extension_flag) {
59  av_log(ctx->log_ctx, AV_LOG_ERROR, "3DAVC not supported.\n");
60  return AVERROR_PATCHWELCOME;
61 
62  } else {
63  av_log(ctx->log_ctx, AV_LOG_ERROR, "MVC not supported.\n");
64  return AVERROR_PATCHWELCOME;
65  }
66  }
67 
68  return 0;
69 }
70 
72  H264RawScalingList *current,
73  int size_of_scaling_list)
74 {
75  int err, i, scale;
76 
77  scale = 8;
78  for (i = 0; i < size_of_scaling_list; i++) {
79  xse(delta_scale, current->delta_scale[i], -128, +127);
80  scale = (scale + current->delta_scale[i] + 256) % 256;
81  if (scale == 0)
82  break;
83  }
84 
85  return 0;
86 }
87 
89  H264RawHRD *current)
90 {
91  int err, i;
92 
93  ue(cpb_cnt_minus1, 0, 31);
94  u(4, bit_rate_scale, 0, 15);
95  u(4, cpb_size_scale, 0, 15);
96 
97  for (i = 0; i <= current->cpb_cnt_minus1; i++) {
98  ue(bit_rate_value_minus1[i], 0, UINT32_MAX - 1);
99  ue(cpb_size_value_minus1[i], 0, UINT32_MAX - 1);
100  flag(cbr_flag[i]);
101  }
102 
103  u(5, initial_cpb_removal_delay_length_minus1, 0, 31);
104  u(5, cpb_removal_delay_length_minus1, 0, 31);
105  u(5, dpb_output_delay_length_minus1, 0, 31);
106  u(5, time_offset_length, 0, 31);
107 
108  return 0;
109 }
110 
112  H264RawVUI *current, H264RawSPS *sps)
113 {
114  int err;
115 
116  flag(aspect_ratio_info_present_flag);
117  if (current->aspect_ratio_info_present_flag) {
118  u(8, aspect_ratio_idc, 0, 255);
119  if (current->aspect_ratio_idc == 255) {
120  u(16, sar_width, 0, 65535);
121  u(16, sar_height, 0, 65535);
122  }
123  } else {
124  infer(aspect_ratio_idc, 0);
125  }
126 
127  flag(overscan_info_present_flag);
128  if (current->overscan_info_present_flag)
129  flag(overscan_appropriate_flag);
130 
131  flag(video_signal_type_present_flag);
132  if (current->video_signal_type_present_flag) {
133  u(3, video_format, 0, 7);
134  flag(video_full_range_flag);
135  flag(colour_description_present_flag);
136  if (current->colour_description_present_flag) {
137  u(8, colour_primaries, 0, 255);
138  u(8, transfer_characteristics, 0, 255);
139  u(8, matrix_coefficients, 0, 255);
140  }
141  } else {
142  infer(video_format, 5);
143  infer(video_full_range_flag, 0);
144  infer(colour_primaries, 2);
146  infer(matrix_coefficients, 2);
147  }
148 
149  flag(chroma_loc_info_present_flag);
150  if (current->chroma_loc_info_present_flag) {
151  ue(chroma_sample_loc_type_top_field, 0, 5);
152  ue(chroma_sample_loc_type_bottom_field, 0, 5);
153  } else {
154  infer(chroma_sample_loc_type_top_field, 0);
155  infer(chroma_sample_loc_type_bottom_field, 0);
156  }
157 
158  flag(timing_info_present_flag);
159  if (current->timing_info_present_flag) {
160  u(32, num_units_in_tick, 1, UINT32_MAX);
161  u(32, time_scale, 1, UINT32_MAX);
162  flag(fixed_frame_rate_flag);
163  } else {
164  infer(fixed_frame_rate_flag, 0);
165  }
166 
167  flag(nal_hrd_parameters_present_flag);
168  if (current->nal_hrd_parameters_present_flag)
169  CHECK(FUNC(hrd_parameters)(ctx, rw, &current->nal_hrd_parameters));
170 
171  flag(vcl_hrd_parameters_present_flag);
172  if (current->vcl_hrd_parameters_present_flag)
173  CHECK(FUNC(hrd_parameters)(ctx, rw, &current->vcl_hrd_parameters));
174 
175  if (current->nal_hrd_parameters_present_flag ||
176  current->vcl_hrd_parameters_present_flag)
177  flag(low_delay_hrd_flag);
178  else
179  infer(low_delay_hrd_flag, 1 - current->fixed_frame_rate_flag);
180 
181  flag(pic_struct_present_flag);
182 
183  flag(bitstream_restriction_flag);
184  if (current->bitstream_restriction_flag) {
185  flag(motion_vectors_over_pic_boundaries_flag);
186  ue(max_bytes_per_pic_denom, 0, 16);
187  ue(max_bits_per_mb_denom, 0, 16);
188  ue(log2_max_mv_length_horizontal, 0, 16);
189  ue(log2_max_mv_length_vertical, 0, 16);
190  ue(max_num_reorder_frames, 0, H264_MAX_DPB_FRAMES);
191  ue(max_dec_frame_buffering, 0, H264_MAX_DPB_FRAMES);
192  } else {
193  infer(motion_vectors_over_pic_boundaries_flag, 1);
194  infer(max_bytes_per_pic_denom, 2);
195  infer(max_bits_per_mb_denom, 1);
196  infer(log2_max_mv_length_horizontal, 16);
197  infer(log2_max_mv_length_vertical, 16);
198 
199  if ((sps->profile_idc == 44 || sps->profile_idc == 86 ||
200  sps->profile_idc == 110 || sps->profile_idc == 110 ||
201  sps->profile_idc == 122 || sps->profile_idc == 244) &&
202  sps->constraint_set3_flag) {
203  infer(max_num_reorder_frames, 0);
204  infer(max_dec_frame_buffering, 0);
205  } else {
206  infer(max_num_reorder_frames, H264_MAX_DPB_FRAMES);
207  infer(max_dec_frame_buffering, H264_MAX_DPB_FRAMES);
208  }
209  }
210 
211  return 0;
212 }
213 
215  H264RawSPS *current)
216 {
217  int err, i;
218 
219  HEADER("Sequence Parameter Set");
220 
221  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
222  1 << H264_NAL_SPS));
223 
224  u(8, profile_idc, 0, 255);
225 
226  flag(constraint_set0_flag);
227  flag(constraint_set1_flag);
228  flag(constraint_set2_flag);
229  flag(constraint_set3_flag);
230  flag(constraint_set4_flag);
231  flag(constraint_set5_flag);
232 
233  u(2, reserved_zero_2bits, 0, 0);
234 
235  u(8, level_idc, 0, 255);
236 
237  ue(seq_parameter_set_id, 0, 31);
238 
239  if (current->profile_idc == 100 || current->profile_idc == 110 ||
240  current->profile_idc == 122 || current->profile_idc == 244 ||
241  current->profile_idc == 44 || current->profile_idc == 83 ||
242  current->profile_idc == 86 || current->profile_idc == 118 ||
243  current->profile_idc == 128 || current->profile_idc == 138) {
244  ue(chroma_format_idc, 0, 3);
245 
246  if (current->chroma_format_idc == 3)
247  flag(separate_colour_plane_flag);
248  else
249  infer(separate_colour_plane_flag, 0);
250 
251  ue(bit_depth_luma_minus8, 0, 6);
252  ue(bit_depth_chroma_minus8, 0, 6);
253 
254  flag(qpprime_y_zero_transform_bypass_flag);
255 
256  flag(seq_scaling_matrix_present_flag);
257  if (current->seq_scaling_matrix_present_flag) {
258  for (i = 0; i < ((current->chroma_format_idc != 3) ? 8 : 12); i++) {
259  flag(seq_scaling_list_present_flag[i]);
260  if (current->seq_scaling_list_present_flag[i]) {
261  if (i < 6)
262  CHECK(FUNC(scaling_list)(ctx, rw,
263  &current->scaling_list_4x4[i],
264  16));
265  else
266  CHECK(FUNC(scaling_list)(ctx, rw,
267  &current->scaling_list_8x8[i - 6],
268  64));
269  }
270  }
271  }
272  } else {
273  infer(chroma_format_idc, current->profile_idc == 183 ? 0 : 1);
274 
275  infer(separate_colour_plane_flag, 0);
276  infer(bit_depth_luma_minus8, 0);
277  infer(bit_depth_chroma_minus8, 0);
278  }
279 
280  ue(log2_max_frame_num_minus4, 0, 12);
281  ue(pic_order_cnt_type, 0, 2);
282 
283  if (current->pic_order_cnt_type == 0) {
284  ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12);
285  } else if (current->pic_order_cnt_type == 1) {
286  flag(delta_pic_order_always_zero_flag);
287  se(offset_for_non_ref_pic, INT32_MIN + 1, INT32_MAX);
288  se(offset_for_top_to_bottom_field, INT32_MIN + 1, INT32_MAX);
289  ue(num_ref_frames_in_pic_order_cnt_cycle, 0, 255);
290 
291  for (i = 0; i < current->num_ref_frames_in_pic_order_cnt_cycle; i++)
292  se(offset_for_ref_frame[i], INT32_MIN + 1, INT32_MAX);
293  }
294 
295  ue(max_num_ref_frames, 0, H264_MAX_DPB_FRAMES);
296  flag(gaps_in_frame_num_allowed_flag);
297 
298  ue(pic_width_in_mbs_minus1, 0, H264_MAX_MB_WIDTH);
299  ue(pic_height_in_map_units_minus1, 0, H264_MAX_MB_HEIGHT);
300 
301  flag(frame_mbs_only_flag);
302  if (!current->frame_mbs_only_flag)
303  flag(mb_adaptive_frame_field_flag);
304 
305  flag(direct_8x8_inference_flag);
306 
307  flag(frame_cropping_flag);
308  if (current->frame_cropping_flag) {
309  ue(frame_crop_left_offset, 0, H264_MAX_WIDTH);
310  ue(frame_crop_right_offset, 0, H264_MAX_WIDTH);
311  ue(frame_crop_top_offset, 0, H264_MAX_HEIGHT);
312  ue(frame_crop_bottom_offset, 0, H264_MAX_HEIGHT);
313  }
314 
315  flag(vui_parameters_present_flag);
316  if (current->vui_parameters_present_flag)
317  CHECK(FUNC(vui_parameters)(ctx, rw, &current->vui, current));
318 
320 
321  return 0;
322 }
323 
325  H264RawSPSExtension *current)
326 {
327  int err;
328 
329  HEADER("Sequence Parameter Set Extension");
330 
331  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
332  1 << H264_NAL_SPS_EXT));
333 
334  ue(seq_parameter_set_id, 0, 31);
335 
336  ue(aux_format_idc, 0, 3);
337 
338  if (current->aux_format_idc != 0) {
339  int bits;
340 
341  ue(bit_depth_aux_minus8, 0, 4);
342  flag(alpha_incr_flag);
343 
344  bits = current->bit_depth_aux_minus8 + 9;
345  u(bits, alpha_opaque_value, 0, (1 << bits) - 1);
346  u(bits, alpha_transparent_value, 0, (1 << bits) - 1);
347  }
348 
349  flag(additional_extension_flag);
350 
352 
353  return 0;
354 }
355 
357  H264RawPPS *current)
358 {
360  const H264RawSPS *sps;
361  int err, i;
362 
363  HEADER("Picture Parameter Set");
364 
365  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
366  1 << H264_NAL_PPS));
367 
368  ue(pic_parameter_set_id, 0, 255);
369  ue(seq_parameter_set_id, 0, 31);
370 
371  sps = h264->sps[current->seq_parameter_set_id];
372  if (!sps) {
373  av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
374  current->seq_parameter_set_id);
375  return AVERROR_INVALIDDATA;
376  }
377 
378  flag(entropy_coding_mode_flag);
379  flag(bottom_field_pic_order_in_frame_present_flag);
380 
381  ue(num_slice_groups_minus1, 0, 7);
382  if (current->num_slice_groups_minus1 > 0) {
383  unsigned int pic_size;
384  int iGroup;
385 
386  pic_size = (sps->pic_width_in_mbs_minus1 + 1) *
388 
389  ue(slice_group_map_type, 0, 6);
390 
391  if (current->slice_group_map_type == 0) {
392  for (iGroup = 0; iGroup <= current->num_slice_groups_minus1; iGroup++)
393  ue(run_length_minus1[iGroup], 0, pic_size - 1);
394 
395  } else if (current->slice_group_map_type == 2) {
396  for (iGroup = 0; iGroup < current->num_slice_groups_minus1; iGroup++) {
397  ue(top_left[iGroup], 0, pic_size - 1);
398  ue(bottom_right[iGroup], current->top_left[iGroup], pic_size - 1);
399  }
400  } else if (current->slice_group_map_type == 3 ||
401  current->slice_group_map_type == 4 ||
402  current->slice_group_map_type == 5) {
403  flag(slice_group_change_direction_flag);
404  ue(slice_group_change_rate_minus1, 0, pic_size - 1);
405  } else if (current->slice_group_map_type == 6) {
406  ue(pic_size_in_map_units_minus1, pic_size - 1, pic_size - 1);
407  for (i = 0; i <= current->pic_size_in_map_units_minus1; i++)
408  u(av_log2(2 * current->num_slice_groups_minus1 + 1),
409  slice_group_id[i], 0, current->num_slice_groups_minus1);
410  }
411  }
412 
413  ue(num_ref_idx_l0_default_active_minus1, 0, 31);
414  ue(num_ref_idx_l1_default_active_minus1, 0, 31);
415 
416  flag(weighted_pred_flag);
417  u(2, weighted_bipred_idc, 0, 2);
418 
419  se(pic_init_qp_minus26, -26 - 6 * sps->bit_depth_luma_minus8, +25);
420  se(pic_init_qs_minus26, -26, +25);
421  se(chroma_qp_index_offset, -12, +12);
422 
423  flag(deblocking_filter_control_present_flag);
424  flag(constrained_intra_pred_flag);
425  flag(redundant_pic_cnt_present_flag);
426 
427  if (more_rbsp_data(current->more_rbsp_data))
428  {
429  flag(transform_8x8_mode_flag);
430 
431  flag(pic_scaling_matrix_present_flag);
432  if (current->pic_scaling_matrix_present_flag) {
433  for (i = 0; i < 6 + (((sps->chroma_format_idc != 3) ? 2 : 6) *
434  current->transform_8x8_mode_flag); i++) {
435  flag(pic_scaling_list_present_flag[i]);
436  if (current->pic_scaling_list_present_flag[i]) {
437  if (i < 6)
438  CHECK(FUNC(scaling_list)(ctx, rw,
439  &current->scaling_list_4x4[i],
440  16));
441  else
442  CHECK(FUNC(scaling_list)(ctx, rw,
443  &current->scaling_list_8x8[i - 6],
444  64));
445  }
446  }
447  }
448 
449  se(second_chroma_qp_index_offset, -12, +12);
450  } else {
451  infer(transform_8x8_mode_flag, 0);
452  infer(pic_scaling_matrix_present_flag, 0);
453  infer(second_chroma_qp_index_offset, current->chroma_qp_index_offset);
454  }
455 
457 
458  return 0;
459 }
460 
462  H264RawSEIBufferingPeriod *current)
463 {
465  const H264RawSPS *sps;
466  int err, i, length;
467 
468  ue(seq_parameter_set_id, 0, 31);
469 
470  sps = h264->sps[current->seq_parameter_set_id];
471  if (!sps) {
472  av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
473  current->seq_parameter_set_id);
474  return AVERROR_INVALIDDATA;
475  }
476  h264->active_sps = sps;
477 
479  for (i = 0; i <= sps->vui.nal_hrd_parameters.cpb_cnt_minus1; i++) {
481  xu(length, initial_cpb_removal_delay[SchedSelIdx],
482  current->nal.initial_cpb_removal_delay[i],
483  0, (1 << (uint64_t)length) - 1);
484  xu(length, initial_cpb_removal_delay_offset[SchedSelIdx],
485  current->nal.initial_cpb_removal_delay_offset[i],
486  0, (1 << (uint64_t)length) - 1);
487  }
488  }
489 
491  for (i = 0; i <= sps->vui.vcl_hrd_parameters.cpb_cnt_minus1; i++) {
493  xu(length, initial_cpb_removal_delay[SchedSelIdx],
494  current->vcl.initial_cpb_removal_delay[i],
495  0, (1 << (uint64_t)length) - 1);
496  xu(length, initial_cpb_removal_delay_offset[SchedSelIdx],
497  current->vcl.initial_cpb_removal_delay_offset[i],
498  0, (1 << (uint64_t)length) - 1);
499  }
500  }
501 
502  return 0;
503 }
504 
506  H264RawSEIPicTimestamp *current)
507 {
509  const H264RawSPS *sps;
510  uint8_t time_offset_length;
511  int err;
512 
513  u(2, ct_type, 0, 2);
514  flag(nuit_field_based_flag);
515  u(5, counting_type, 0, 6);
516  flag(full_timestamp_flag);
517  flag(discontinuity_flag);
518  flag(cnt_dropped_flag);
519  u(8, n_frames, 0, 255);
520  if (current->full_timestamp_flag) {
521  u(6, seconds_value, 0, 59);
522  u(6, minutes_value, 0, 59);
523  u(5, hours_value, 0, 23);
524  } else {
525  flag(seconds_flag);
526  if (current->seconds_flag) {
527  u(6, seconds_value, 0, 59);
528  flag(minutes_flag);
529  if (current->minutes_flag) {
530  u(6, minutes_value, 0, 59);
531  flag(hours_flag);
532  if (current->hours_flag)
533  u(5, hours_value, 0, 23);
534  }
535  }
536  }
537 
538  sps = h264->active_sps;
540  time_offset_length = sps->vui.nal_hrd_parameters.time_offset_length;
541  else if (sps->vui.vcl_hrd_parameters_present_flag)
542  time_offset_length = sps->vui.vcl_hrd_parameters.time_offset_length;
543  else
544  time_offset_length = 24;
545 
546  if (time_offset_length > 0)
547  u(time_offset_length, time_offset,
548  0, (1 << (uint64_t)time_offset_length) - 1);
549  else
550  infer(time_offset, 0);
551 
552  return 0;
553 }
554 
556  H264RawSEIPicTiming *current)
557 {
559  const H264RawSPS *sps;
560  int err;
561 
562  sps = h264->active_sps;
563  if (!sps) {
564  av_log(ctx->log_ctx, AV_LOG_ERROR,
565  "No active SPS for pic_timing.\n");
566  return AVERROR_INVALIDDATA;
567  }
568 
571  const H264RawHRD *hrd;
572 
574  hrd = &sps->vui.nal_hrd_parameters;
575  else if (sps->vui.vcl_hrd_parameters_present_flag)
576  hrd = &sps->vui.vcl_hrd_parameters;
577  else {
578  av_log(ctx->log_ctx, AV_LOG_ERROR,
579  "No HRD parameters for pic_timing.\n");
580  return AVERROR_INVALIDDATA;
581  }
582 
583  u(hrd->cpb_removal_delay_length_minus1 + 1, cpb_removal_delay,
584  0, (1 << (uint64_t)hrd->cpb_removal_delay_length_minus1) + 1);
585  u(hrd->dpb_output_delay_length_minus1 + 1, dpb_output_delay,
586  0, (1 << (uint64_t)hrd->dpb_output_delay_length_minus1) + 1);
587  }
588 
589  if (sps->vui.pic_struct_present_flag) {
590  static const int num_clock_ts[9] = {
591  1, 1, 1, 2, 2, 3, 3, 2, 3
592  };
593  int i;
594 
595  u(4, pic_struct, 0, 8);
596  if (current->pic_struct > 8)
597  return AVERROR_INVALIDDATA;
598 
599  for (i = 0; i < num_clock_ts[current->pic_struct]; i++) {
600  flag(clock_timestamp_flag[i]);
601  if (current->clock_timestamp_flag[i])
602  CHECK(FUNC(sei_pic_timestamp)(ctx, rw, &current->timestamp[i]));
603  }
604  }
605 
606  return 0;
607 }
608 
611  uint32_t *payload_size)
612 {
613  int err, i, j;
614 
615  u(8, itu_t_t35_country_code, 0x00, 0xff);
616  if (current->itu_t_t35_country_code != 0xff)
617  i = 1;
618  else {
619  u(8, itu_t_t35_country_code_extension_byte, 0x00, 0xff);
620  i = 2;
621  }
622 
623 #ifdef READ
624  if (*payload_size < i) {
625  av_log(ctx->log_ctx, AV_LOG_ERROR,
626  "Invalid SEI user data registered payload.\n");
627  return AVERROR_INVALIDDATA;
628  }
629  current->data_length = *payload_size - i;
630 #else
631  *payload_size = i + current->data_length;
632 #endif
633 
634  allocate(current->data, current->data_length);
635  for (j = 0; j < current->data_length; j++)
636  xu(8, itu_t_t35_payload_byte, current->data[j], 0x00, 0xff);
637 
638  return 0;
639 }
640 
643  uint32_t *payload_size)
644 {
645  int err, i;
646 
647 #ifdef READ
648  if (*payload_size < 16) {
649  av_log(ctx->log_ctx, AV_LOG_ERROR,
650  "Invalid SEI user data unregistered payload.\n");
651  return AVERROR_INVALIDDATA;
652  }
653  current->data_length = *payload_size - 16;
654 #else
655  *payload_size = 16 + current->data_length;
656 #endif
657 
658  for (i = 0; i < 16; i++) {
659  xu(8, uuid_iso_iec_11578,
660  current->uuid_iso_iec_11578[i], 0x00, 0xff);
661  }
662 
663  allocate(current->data, current->data_length);
664 
665  for (i = 0; i < current->data_length; i++)
666  xu(8, user_data_payload_byte, current->data[i], 0x00, 0xff);
667 
668  return 0;
669 }
670 
672  H264RawSEIRecoveryPoint *current)
673 {
674  int err;
675 
676  ue(recovery_frame_cnt, 0, 65535);
677  flag(exact_match_flag);
678  flag(broken_link_flag);
679  u(2, changing_slice_group_idc, 0, 2);
680 
681  return 0;
682 }
683 
686 {
687  int err;
688 
689  flag(display_orientation_cancel_flag);
690  if (!current->display_orientation_cancel_flag) {
691  flag(hor_flip);
692  flag(ver_flip);
693  u(16, anticlockwise_rotation, 0, 65535);
694  ue(display_orientation_repetition_period, 0, 16384);
695  flag(display_orientation_extension_flag);
696  }
697 
698  return 0;
699 }
700 
702  H264RawSEIPayload *current)
703 {
704  int err, i;
705  int start_position, end_position;
706 
707 #ifdef READ
708  start_position = get_bits_count(rw);
709 #else
710  start_position = put_bits_count(rw);
711 #endif
712 
713  switch (current->payload_type) {
716  (ctx, rw, &current->payload.buffering_period));
717  break;
720  (ctx, rw, &current->payload.pic_timing));
721  break;
723  {
724  av_unused int ff_byte = 0xff;
725  for (i = 0; i < current->payload_size; i++)
726  xu(8, ff_byte, ff_byte, 0xff, 0xff);
727  }
728  break;
731  (ctx, rw, &current->payload.user_data_registered, &current->payload_size));
732  break;
735  (ctx, rw, &current->payload.user_data_unregistered, &current->payload_size));
736  break;
739  (ctx, rw, &current->payload.recovery_point));
740  break;
743  (ctx, rw, &current->payload.display_orientation));
744  break;
745  default:
746  {
747  allocate(current->payload.other.data, current->payload_size);
748  for (i = 0; i < current->payload_size; i++)
749  xu(8, payload_byte, current->payload.other.data[i], 0, 255);
750  }
751  }
752 
753  if (byte_alignment(rw)) {
754  av_unused int one = 1, zero = 0;
755  xu(1, bit_equal_to_one, one, 1, 1);
756  while (byte_alignment(rw))
757  xu(1, bit_equal_to_zero, zero, 0, 0);
758  }
759 
760 #ifdef READ
761  end_position = get_bits_count(rw);
762  if (end_position < start_position + 8 * current->payload_size) {
763  av_log(ctx->log_ctx, AV_LOG_ERROR, "Incorrect SEI payload length: "
764  "header %"PRIu32" bits, actually %d bits.\n",
765  8 * current->payload_size,
766  end_position - start_position);
767  return AVERROR_INVALIDDATA;
768  }
769 #else
770  end_position = put_bits_count(rw);
771  current->payload_size = (end_position - start_position) / 8;
772 #endif
773 
774  return 0;
775 }
776 
778  H264RawSEI *current)
779 {
780  int err, k;
781 
782  HEADER("Supplemental Enhancement Information");
783 
784  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
785  1 << H264_NAL_SEI));
786 
787 #ifdef READ
788  for (k = 0; k < H264_MAX_SEI_PAYLOADS; k++) {
789  uint32_t payload_type = 0;
790  uint32_t payload_size = 0;
791  uint32_t tmp;
792 
793  while (show_bits(rw, 8) == 0xff) {
794  xu(8, ff_byte, tmp, 0xff, 0xff);
795  payload_type += 255;
796  }
797  xu(8, last_payload_type_byte, tmp, 0, 254);
798  payload_type += tmp;
799 
800  while (show_bits(rw, 8) == 0xff) {
801  xu(8, ff_byte, tmp, 0xff, 0xff);
802  payload_size += 255;
803  }
804  xu(8, last_payload_size_byte, tmp, 0, 254);
805  payload_size += tmp;
806 
807  current->payload[k].payload_type = payload_type;
808  current->payload[k].payload_size = payload_size;
809 
810  CHECK(FUNC(sei_payload)(ctx, rw, &current->payload[k]));
811 
813  break;
814  }
815  if (k >= H264_MAX_SEI_PAYLOADS) {
816  av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many payloads in "
817  "SEI message: found %d.\n", k);
818  return AVERROR_INVALIDDATA;
819  }
820  current->payload_count = k + 1;
821 #else
822  for (k = 0; k < current->payload_count; k++) {
823  PutBitContext start_state;
824  uint32_t tmp;
825  int need_size, i;
826 
827  // Somewhat clumsy: we write the payload twice when
828  // we don't know the size in advance. This will mess
829  // with trace output, but is otherwise harmless.
830  start_state = *rw;
831  need_size = !current->payload[k].payload_size;
832  for (i = 0; i < 1 + need_size; i++) {
833  *rw = start_state;
834 
835  tmp = current->payload[k].payload_type;
836  while (tmp >= 255) {
837  xu(8, ff_byte, 0xff, 0xff, 0xff);
838  tmp -= 255;
839  }
840  xu(8, last_payload_type_byte, tmp, 0, 254);
841 
842  tmp = current->payload[k].payload_size;
843  while (tmp >= 255) {
844  xu(8, ff_byte, 0xff, 0xff, 0xff);
845  tmp -= 255;
846  }
847  xu(8, last_payload_size_byte, tmp, 0, 254);
848 
849  CHECK(FUNC(sei_payload)(ctx, rw, &current->payload[k]));
850  }
851  }
852 #endif
853 
855 
856  return 0;
857 }
858 
860  H264RawAUD *current)
861 {
862  int err;
863 
864  HEADER("Access Unit Delimiter");
865 
866  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
867  1 << H264_NAL_AUD));
868 
869  u(3, primary_pic_type, 0, 7);
870 
872 
873  return 0;
874 }
875 
877  H264RawSliceHeader *current)
878 {
880  const H264RawSPS *sps = h264->active_sps;
881  int err, i, mopn;
882 
883  if (current->slice_type % 5 != 2 &&
884  current->slice_type % 5 != 4) {
885  flag(ref_pic_list_modification_flag_l0);
886  if (current->ref_pic_list_modification_flag_l0) {
887  for (i = 0; i < H264_MAX_RPLM_COUNT; i++) {
888  xue(modification_of_pic_nums_idc,
889  current->rplm_l0[i].modification_of_pic_nums_idc, 0, 3);
890 
891  mopn = current->rplm_l0[i].modification_of_pic_nums_idc;
892  if (mopn == 3)
893  break;
894 
895  if (mopn == 0 || mopn == 1)
896  xue(abs_diff_pic_num_minus1,
897  current->rplm_l0[i].abs_diff_pic_num_minus1,
898  0, (1 + current->field_pic_flag) *
899  (1 << (sps->log2_max_frame_num_minus4 + 4)));
900  else if (mopn == 2)
901  xue(long_term_pic_num,
902  current->rplm_l0[i].long_term_pic_num,
903  0, sps->max_num_ref_frames - 1);
904  }
905  }
906  }
907 
908  if (current->slice_type % 5 == 1) {
909  flag(ref_pic_list_modification_flag_l1);
910  if (current->ref_pic_list_modification_flag_l1) {
911  for (i = 0; i < H264_MAX_RPLM_COUNT; i++) {
912  xue(modification_of_pic_nums_idc,
913  current->rplm_l1[i].modification_of_pic_nums_idc, 0, 3);
914 
915  mopn = current->rplm_l1[i].modification_of_pic_nums_idc;
916  if (mopn == 3)
917  break;
918 
919  if (mopn == 0 || mopn == 1)
920  xue(abs_diff_pic_num_minus1,
921  current->rplm_l1[i].abs_diff_pic_num_minus1,
922  0, (1 + current->field_pic_flag) *
923  (1 << (sps->log2_max_frame_num_minus4 + 4)));
924  else if (mopn == 2)
925  xue(long_term_pic_num,
926  current->rplm_l1[i].long_term_pic_num,
927  0, sps->max_num_ref_frames - 1);
928  }
929  }
930  }
931 
932  return 0;
933 }
934 
936  H264RawSliceHeader *current)
937 {
939  const H264RawSPS *sps = h264->active_sps;
940  int chroma;
941  int err, i, j;
942 
943  ue(luma_log2_weight_denom, 0, 7);
944 
945  chroma = !sps->separate_colour_plane_flag && sps->chroma_format_idc != 0;
946  if (chroma)
947  ue(chroma_log2_weight_denom, 0, 7);
948 
949  for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
950  flag(luma_weight_l0_flag[i]);
951  if (current->luma_weight_l0_flag[i]) {
952  se(luma_weight_l0[i], -128, +127);
953  se(luma_offset_l0[i], -128, +127);
954  }
955  if (chroma) {
956  flag(chroma_weight_l0_flag[i]);
957  if (current->chroma_weight_l0_flag[i]) {
958  for (j = 0; j < 2; j++) {
959  se(chroma_weight_l0[i][j], -128, +127);
960  se(chroma_offset_l0[i][j], -128, +127);
961  }
962  }
963  }
964  }
965 
966  if (current->slice_type % 5 == 1) {
967  for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
968  flag(luma_weight_l1_flag[i]);
969  if (current->luma_weight_l1_flag[i]) {
970  se(luma_weight_l1[i], -128, +127);
971  se(luma_offset_l1[i], -128, +127);
972  }
973  if (chroma) {
974  flag(chroma_weight_l1_flag[i]);
975  if (current->chroma_weight_l1_flag[i]) {
976  for (j = 0; j < 2; j++) {
977  se(chroma_weight_l1[i][j], -128, +127);
978  se(chroma_offset_l1[i][j], -128, +127);
979  }
980  }
981  }
982  }
983  }
984 
985  return 0;
986 }
987 
989  H264RawSliceHeader *current, int idr_pic_flag)
990 {
992  const H264RawSPS *sps = h264->active_sps;
993  int err, i;
994  uint32_t mmco;
995 
996  if (idr_pic_flag) {
997  flag(no_output_of_prior_pics_flag);
998  flag(long_term_reference_flag);
999  } else {
1000  flag(adaptive_ref_pic_marking_mode_flag);
1001  if (current->adaptive_ref_pic_marking_mode_flag) {
1002  for (i = 0; i < H264_MAX_MMCO_COUNT; i++) {
1003  xue(memory_management_control_operation,
1004  current->mmco[i].memory_management_control_operation,
1005  0, 6);
1006 
1007  mmco = current->mmco[i].memory_management_control_operation;
1008  if (mmco == 0)
1009  break;
1010 
1011  if (mmco == 1 || mmco == 3)
1012  xue(difference_of_pic_nums_minus1,
1013  current->mmco[i].difference_of_pic_nums_minus1,
1014  0, INT32_MAX);
1015  if (mmco == 2)
1016  xue(long_term_pic_num,
1017  current->mmco[i].long_term_pic_num,
1018  0, sps->max_num_ref_frames - 1);
1019  if (mmco == 3 || mmco == 6)
1020  xue(long_term_frame_idx,
1021  current->mmco[i].long_term_frame_idx,
1022  0, sps->max_num_ref_frames - 1);
1023  if (mmco == 4)
1024  xue(max_long_term_frame_idx_plus1,
1025  current->mmco[i].max_long_term_frame_idx_plus1,
1026  0, sps->max_num_ref_frames);
1027  }
1028  if (i == H264_MAX_MMCO_COUNT) {
1029  av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many "
1030  "memory management control operations.\n");
1031  return AVERROR_INVALIDDATA;
1032  }
1033  }
1034  }
1035 
1036  return 0;
1037 }
1038 
1040  H264RawSliceHeader *current)
1041 {
1043  const H264RawSPS *sps;
1044  const H264RawPPS *pps;
1045  int err;
1046  int idr_pic_flag;
1047  int slice_type_i, slice_type_p, slice_type_b;
1048  int slice_type_si, slice_type_sp;
1049 
1050  HEADER("Slice Header");
1051 
1052  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
1053  1 << H264_NAL_SLICE |
1054  1 << H264_NAL_IDR_SLICE |
1055  1 << H264_NAL_AUXILIARY_SLICE));
1056 
1057  if (current->nal_unit_header.nal_unit_type == H264_NAL_AUXILIARY_SLICE) {
1058  if (!h264->last_slice_nal_unit_type) {
1059  av_log(ctx->log_ctx, AV_LOG_ERROR, "Auxiliary slice "
1060  "is not decodable without the main picture "
1061  "in the same access unit.\n");
1062  return AVERROR_INVALIDDATA;
1063  }
1064  } else {
1065  h264->last_slice_nal_unit_type =
1066  current->nal_unit_header.nal_unit_type;
1067  }
1068  idr_pic_flag = h264->last_slice_nal_unit_type == H264_NAL_IDR_SLICE;
1069 
1070  ue(first_mb_in_slice, 0, H264_MAX_MB_PIC_SIZE - 1);
1071  ue(slice_type, 0, 9);
1072 
1073  slice_type_i = current->slice_type % 5 == 2;
1074  slice_type_p = current->slice_type % 5 == 0;
1075  slice_type_b = current->slice_type % 5 == 1;
1076  slice_type_si = current->slice_type % 5 == 4;
1077  slice_type_sp = current->slice_type % 5 == 3;
1078 
1079  if (idr_pic_flag && !(slice_type_i || slice_type_si)) {
1080  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid slice type %d "
1081  "for IDR picture.\n", current->slice_type);
1082  return AVERROR_INVALIDDATA;
1083  }
1084 
1085  ue(pic_parameter_set_id, 0, 255);
1086 
1087  pps = h264->pps[current->pic_parameter_set_id];
1088  if (!pps) {
1089  av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
1090  current->pic_parameter_set_id);
1091  return AVERROR_INVALIDDATA;
1092  }
1093  h264->active_pps = pps;
1094 
1095  sps = h264->sps[pps->seq_parameter_set_id];
1096  if (!sps) {
1097  av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1098  pps->seq_parameter_set_id);
1099  return AVERROR_INVALIDDATA;
1100  }
1101  h264->active_sps = sps;
1102 
1103  if (sps->separate_colour_plane_flag)
1104  u(2, colour_plane_id, 0, 2);
1105 
1106  u(sps->log2_max_frame_num_minus4 + 4, frame_num,
1107  0, (1 << (sps->log2_max_frame_num_minus4 + 4)) - 1);
1108 
1109  if (!sps->frame_mbs_only_flag) {
1110  flag(field_pic_flag);
1111  if (current->field_pic_flag)
1112  flag(bottom_field_flag);
1113  else
1114  infer(bottom_field_flag, 0);
1115  } else {
1116  infer(field_pic_flag, 0);
1117  infer(bottom_field_flag, 0);
1118  }
1119 
1120  if (idr_pic_flag)
1121  ue(idr_pic_id, 0, 65535);
1122 
1123  if (sps->pic_order_cnt_type == 0) {
1124  u(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, pic_order_cnt_lsb,
1125  0, (1 << (sps->log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1);
1127  !current->field_pic_flag)
1128  se(delta_pic_order_cnt_bottom, INT32_MIN + 1, INT32_MAX);
1129 
1130  } else if (sps->pic_order_cnt_type == 1) {
1132  se(delta_pic_order_cnt[0], INT32_MIN + 1, INT32_MAX);
1134  !current->field_pic_flag)
1135  se(delta_pic_order_cnt[1], INT32_MIN + 1, INT32_MAX);
1136  else
1137  infer(delta_pic_order_cnt[1], 0);
1138  } else {
1139  infer(delta_pic_order_cnt[0], 0);
1140  infer(delta_pic_order_cnt[1], 0);
1141  }
1142  }
1143 
1145  ue(redundant_pic_cnt, 0, 127);
1146 
1147  if (slice_type_b)
1148  flag(direct_spatial_mv_pred_flag);
1149 
1150  if (slice_type_p || slice_type_sp || slice_type_b) {
1151  flag(num_ref_idx_active_override_flag);
1152  if (current->num_ref_idx_active_override_flag) {
1153  ue(num_ref_idx_l0_active_minus1, 0, 31);
1154  if (slice_type_b)
1155  ue(num_ref_idx_l1_active_minus1, 0, 31);
1156  } else {
1157  infer(num_ref_idx_l0_active_minus1,
1159  infer(num_ref_idx_l1_active_minus1,
1161  }
1162  }
1163 
1164  if (current->nal_unit_header.nal_unit_type == 20 ||
1165  current->nal_unit_header.nal_unit_type == 21) {
1166  av_log(ctx->log_ctx, AV_LOG_ERROR, "MVC / 3DAVC not supported.\n");
1167  return AVERROR_PATCHWELCOME;
1168  } else {
1169  CHECK(FUNC(ref_pic_list_modification)(ctx, rw, current));
1170  }
1171 
1172  if ((pps->weighted_pred_flag && (slice_type_p || slice_type_sp)) ||
1173  (pps->weighted_bipred_idc == 1 && slice_type_b)) {
1174  CHECK(FUNC(pred_weight_table)(ctx, rw, current));
1175  }
1176 
1177  if (current->nal_unit_header.nal_ref_idc != 0) {
1178  CHECK(FUNC(dec_ref_pic_marking)(ctx, rw, current, idr_pic_flag));
1179  }
1180 
1181  if (pps->entropy_coding_mode_flag &&
1182  !slice_type_i && !slice_type_si) {
1183  ue(cabac_init_idc, 0, 2);
1184  }
1185 
1186  se(slice_qp_delta, - 51 - 6 * sps->bit_depth_luma_minus8,
1187  + 51 + 6 * sps->bit_depth_luma_minus8);
1188  if (slice_type_sp || slice_type_si) {
1189  if (slice_type_sp)
1190  flag(sp_for_switch_flag);
1191  se(slice_qs_delta, -51, +51);
1192  }
1193 
1195  ue(disable_deblocking_filter_idc, 0, 2);
1196  if (current->disable_deblocking_filter_idc != 1) {
1197  se(slice_alpha_c0_offset_div2, -6, +6);
1198  se(slice_beta_offset_div2, -6, +6);
1199  } else {
1200  infer(slice_alpha_c0_offset_div2, 0);
1201  infer(slice_beta_offset_div2, 0);
1202  }
1203  } else {
1204  infer(disable_deblocking_filter_idc, 0);
1205  infer(slice_alpha_c0_offset_div2, 0);
1206  infer(slice_beta_offset_div2, 0);
1207  }
1208 
1209  if (pps->num_slice_groups_minus1 > 0 &&
1210  pps->slice_group_map_type >= 3 &&
1211  pps->slice_group_map_type <= 5) {
1212  unsigned int pic_size, max, bits;
1213 
1214  pic_size = (sps->pic_width_in_mbs_minus1 + 1) *
1215  (sps->pic_height_in_map_units_minus1 + 1);
1216  max = (pic_size + pps->slice_group_change_rate_minus1) /
1217  (pps->slice_group_change_rate_minus1 + 1);
1218  bits = av_log2(2 * max - 1);
1219 
1220  u(bits, slice_group_change_cycle, 0, max);
1221  }
1222 
1223  if (pps->entropy_coding_mode_flag) {
1224  av_unused int one = 1;
1225  while (byte_alignment(rw))
1226  xu(1, cabac_alignment_one_bit, one, 1, 1);
1227  }
1228 
1229  return 0;
1230 }
#define allocate(name, size)
Definition: cbs_h2645.c:364
uint8_t deblocking_filter_control_present_flag
Definition: cbs_h264.h:209
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
static int FUNC() dec_ref_pic_marking(CodedBitstreamContext *ctx, RWContext *rw, H264RawSliceHeader *current, int idr_pic_flag)
#define se(name, range_min, range_max)
Definition: cbs_h2645.c:348
#define flag(name)
Definition: cbs_h2645.c:345
static av_always_inline void chroma(WaveformContext *s, AVFrame *in, AVFrame *out, int component, int intensity, int offset_y, int offset_x, int column, int mirror)
Definition: vf_waveform.c:1345
uint8_t dpb_output_delay_length_minus1
Definition: cbs_h264.h:63
uint8_t initial_cpb_removal_delay_length_minus1
Definition: cbs_h264.h:61
H264RawPPS * pps[H264_MAX_PPS_COUNT]
Definition: cbs_h264.h:412
uint8_t log2_max_frame_num_minus4
Definition: cbs_h264.h:137
int av_log2(unsigned v)
Definition: intmath.c:26
static int FUNC() sps_extension(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPSExtension *current)
uint8_t time_offset_length
Definition: cbs_h264.h:64
H264RawVUI vui
Definition: cbs_h264.h:163
static int FUNC() sei_display_orientation(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIDisplayOrientation *current)
static int FUNC() scaling_list(CodedBitstreamContext *ctx, RWContext *rw, H264RawScalingList *current, int size_of_scaling_list)
uint8_t weighted_pred_flag
Definition: cbs_h264.h:202
H264RawHRD nal_hrd_parameters
Definition: cbs_h264.h:94
static int FUNC() sei_payload(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIPayload *current)
uint8_t
uint16_t pic_width_in_mbs_minus1
Definition: cbs_h264.h:149
unregistered user data
Definition: h264_sei.h:32
#define u(width, name, range_min, range_max)
Definition: cbs_h2645.c:343
display orientation
Definition: h264_sei.h:35
static int FUNC() pred_weight_table(CodedBitstreamContext *ctx, RWContext *rw, H264RawSliceHeader *current)
CHECK(-1) CHECK(-2)}}}}CHECK(1) CHECK(2)}}}}}if(diff0+diff1 > 0) temp-
static int get_bits_count(const GetBitContext *s)
Definition: get_bits.h:199
H264RawSPS * sps[H264_MAX_SPS_COUNT]
Definition: cbs_h264.h:411
static int FUNC() slice_header(CodedBitstreamContext *ctx, RWContext *rw, H264RawSliceHeader *current)
#define infer(name, value)
Definition: cbs_h2645.c:351
#define av_log(a,...)
uint8_t nal_hrd_parameters_present_flag
Definition: cbs_h264.h:93
uint8_t bit_depth_luma_minus8
Definition: cbs_h264.h:128
uint8_t slice_group_map_type
Definition: cbs_h264.h:190
buffering period (H.264, D.1.1)
Definition: h264_sei.h:28
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define FUNC(a)
uint8_t max_num_ref_frames
Definition: cbs_h264.h:146
uint8_t weighted_bipred_idc
Definition: cbs_h264.h:203
#define ue(name, range_min, range_max)
Definition: cbs_h2645.c:346
static int FUNC() rbsp_trailing_bits(CodedBitstreamContext *ctx, RWContext *rw)
#define zero
Definition: regdef.h:64
uint8_t num_ref_idx_l1_default_active_minus1
Definition: cbs_h264.h:200
GLsizei GLsizei * length
Definition: opengl_enc.c:115
uint8_t frame_mbs_only_flag
Definition: cbs_h264.h:152
static int put_bits_count(PutBitContext *s)
Definition: put_bits.h:85
uint8_t seq_parameter_set_id
Definition: cbs_h264.h:184
static int FUNC() sei_recovery_point(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIRecoveryPoint *current)
static const struct TransferCharacteristics transfer_characteristics[AVCOL_TRC_NB]
picture timing
Definition: h264_sei.h:29
static int FUNC() ref_pic_list_modification(CodedBitstreamContext *ctx, RWContext *rw, H264RawSliceHeader *current)
uint8_t separate_colour_plane_flag
Definition: cbs_h264.h:127
uint8_t last_slice_nal_unit_type
Definition: cbs_h264.h:423
AVFormatContext * ctx
Definition: movenc.c:48
static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
Definition: get_bits.h:296
static int FUNC() sei_pic_timestamp(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIPicTimestamp *current)
#define more_rbsp_data(var)
Definition: cbs_h2645.c:360
uint8_t chroma_format_idc
Definition: cbs_h264.h:126
static int FUNC() hrd_parameters(CodedBitstreamContext *ctx, RWContext *rw, H264RawHRD *current)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
static int FUNC() vui_parameters(CodedBitstreamContext *ctx, RWContext *rw, H264RawVUI *current, H264RawSPS *sps)
uint8_t cpb_cnt_minus1
Definition: cbs_h264.h:53
static int FUNC() nal_unit_header(CodedBitstreamContext *ctx, RWContext *rw, H264RawNALUnitHeader *current, uint32_t valid_type_mask)
uint8_t num_slice_groups_minus1
Definition: cbs_h264.h:189
uint8_t bottom_field_pic_order_in_frame_present_flag
Definition: cbs_h264.h:187
uint8_t entropy_coding_mode_flag
Definition: cbs_h264.h:186
#define byte_alignment(rw)
Definition: cbs_h2645.c:362
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
uint8_t pic_order_cnt_type
Definition: cbs_h264.h:138
static int FUNC() pps(CodedBitstreamContext *ctx, RWContext *rw, H264RawPPS *current)
Context structure for coded bitstream operations.
Definition: cbs.h:145
uint8_t num_ref_idx_l0_default_active_minus1
Definition: cbs_h264.h:199
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
recovery point (frame # to decoder sync)
Definition: h264_sei.h:33
static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
Definition: cbs_h2645.c:279
registered user data as specified by Rec. ITU-T T.35
Definition: h264_sei.h:31
static int FUNC() sei_user_data_registered(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIUserDataRegistered *current, uint32_t *payload_size)
uint8_t redundant_pic_cnt_present_flag
Definition: cbs_h264.h:214
uint8_t pic_struct_present_flag
Definition: cbs_h264.h:99
uint8_t cpb_removal_delay_length_minus1
Definition: cbs_h264.h:62
static int FUNC() sei_user_data_unregistered(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIUserDataUnregistered *current, uint32_t *payload_size)
static int FUNC() sei(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEI *current)
static int FUNC() sei_buffering_period(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIBufferingPeriod *current)
#define xse(name, var, range_min, range_max)
Definition: cbs_h2645.c:337
static int FUNC() sei_pic_timing(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEIPicTiming *current)
#define HEADER(name)
Definition: cbs_h2645.c:228
#define xue(name, var, range_min, range_max)
Definition: cbs_h2645.c:332
uint8_t log2_max_pic_order_cnt_lsb_minus4
Definition: cbs_h264.h:139
void * priv_data
Format private data.
Definition: avformat.h:1353
uint8_t delta_pic_order_always_zero_flag
Definition: cbs_h264.h:140
const H264RawPPS * active_pps
Definition: cbs_h264.h:418
#define RWContext
Definition: cbs_h2645.c:325
uint16_t pic_height_in_map_units_minus1
Definition: cbs_h264.h:150
#define xu(width, name, var, range_min, range_max)
Definition: cbs_h2645.c:327
#define av_unused
Definition: attributes.h:125
uint8_t vcl_hrd_parameters_present_flag
Definition: cbs_h264.h:95
H264RawHRD vcl_hrd_parameters
Definition: cbs_h264.h:96
const H264RawSPS * active_sps
Definition: cbs_h264.h:417
uint16_t slice_group_change_rate_minus1
Definition: cbs_h264.h:195
static uint8_t tmp[11]
Definition: aes_ctr.c:26