FFmpeg
cbs_h265_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 
19 static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw)
20 {
21  int err;
22 
23  fixed(1, rbsp_stop_one_bit, 1);
24  while (byte_alignment(rw) != 0)
25  fixed(1, rbsp_alignment_zero_bit, 0);
26 
27  return 0;
28 }
29 
30 static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw,
31  H265RawNALUnitHeader *current,
32  int expected_nal_unit_type)
33 {
34  int err;
35 
36  fixed(1, forbidden_zero_bit, 0);
37 
38  if (expected_nal_unit_type >= 0)
39  u(6, nal_unit_type, expected_nal_unit_type,
40  expected_nal_unit_type);
41  else
42  ub(6, nal_unit_type);
43 
44  u(6, nuh_layer_id, 0, 62);
45  u(3, nuh_temporal_id_plus1, 1, 7);
46 
47  return 0;
48 }
49 
50 static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
51 {
52  int err;
53 
54  fixed(1, alignment_bit_equal_to_one, 1);
55  while (byte_alignment(rw) != 0)
56  fixed(1, alignment_bit_equal_to_zero, 0);
57 
58  return 0;
59 }
60 
61 static int FUNC(extension_data)(CodedBitstreamContext *ctx, RWContext *rw,
62  H265RawExtensionData *current)
63 {
64  int err;
65  size_t k;
66 #ifdef READ
67  GetBitContext start;
68  uint8_t bit;
69  start = *rw;
70  for (k = 0; cbs_h2645_read_more_rbsp_data(rw); k++)
71  skip_bits(rw, 1);
72  current->bit_length = k;
73  if (k > 0) {
74  *rw = start;
75  allocate(current->data, (current->bit_length + 7) / 8);
76  for (k = 0; k < current->bit_length; k++) {
77  xu(1, extension_data, bit, 0, 1, 0);
78  current->data[k / 8] |= bit << (7 - k % 8);
79  }
80  }
81 #else
82  for (k = 0; k < current->bit_length; k++)
83  xu(1, extension_data, current->data[k / 8] >> (7 - k % 8) & 1, 0, 1, 0);
84 #endif
85  return 0;
86 }
87 
88 static int FUNC(profile_tier_level)(CodedBitstreamContext *ctx, RWContext *rw,
89  H265RawProfileTierLevel *current,
90  int profile_present_flag,
91  int max_num_sub_layers_minus1)
92 {
93  int err, i, j;
94 
95  if (profile_present_flag) {
96  u(2, general_profile_space, 0, 0);
97  flag(general_tier_flag);
98  ub(5, general_profile_idc);
99 
100  for (j = 0; j < 32; j++)
101  flags(general_profile_compatibility_flag[j], 1, j);
102 
103  flag(general_progressive_source_flag);
104  flag(general_interlaced_source_flag);
105  flag(general_non_packed_constraint_flag);
106  flag(general_frame_only_constraint_flag);
107 
108 #define profile_compatible(x) (current->general_profile_idc == (x) || \
109  current->general_profile_compatibility_flag[x])
110  if (profile_compatible(4) || profile_compatible(5) ||
111  profile_compatible(6) || profile_compatible(7) ||
112  profile_compatible(8) || profile_compatible(9) ||
113  profile_compatible(10)) {
114  flag(general_max_12bit_constraint_flag);
115  flag(general_max_10bit_constraint_flag);
116  flag(general_max_8bit_constraint_flag);
117  flag(general_max_422chroma_constraint_flag);
118  flag(general_max_420chroma_constraint_flag);
119  flag(general_max_monochrome_constraint_flag);
120  flag(general_intra_constraint_flag);
121  flag(general_one_picture_only_constraint_flag);
122  flag(general_lower_bit_rate_constraint_flag);
123 
124  if (profile_compatible(5) || profile_compatible(9) ||
125  profile_compatible(10)) {
126  flag(general_max_14bit_constraint_flag);
127  fixed(24, general_reserved_zero_33bits, 0);
128  fixed( 9, general_reserved_zero_33bits, 0);
129  } else {
130  fixed(24, general_reserved_zero_34bits, 0);
131  fixed(10, general_reserved_zero_34bits, 0);
132  }
133  } else if (profile_compatible(2)) {
134  fixed(7, general_reserved_zero_7bits, 0);
135  flag(general_one_picture_only_constraint_flag);
136  fixed(24, general_reserved_zero_35bits, 0);
137  fixed(11, general_reserved_zero_35bits, 0);
138  } else {
139  fixed(24, general_reserved_zero_43bits, 0);
140  fixed(19, general_reserved_zero_43bits, 0);
141  }
142 
143  if (profile_compatible(1) || profile_compatible(2) ||
144  profile_compatible(3) || profile_compatible(4) ||
145  profile_compatible(5) || profile_compatible(9)) {
146  flag(general_inbld_flag);
147  } else {
148  fixed(1, general_reserved_zero_bit, 0);
149  }
150 #undef profile_compatible
151  }
152 
153  ub(8, general_level_idc);
154 
155  for (i = 0; i < max_num_sub_layers_minus1; i++) {
156  flags(sub_layer_profile_present_flag[i], 1, i);
157  flags(sub_layer_level_present_flag[i], 1, i);
158  }
159 
160  if (max_num_sub_layers_minus1 > 0) {
161  for (i = max_num_sub_layers_minus1; i < 8; i++)
162  fixed(2, reserved_zero_2bits, 0);
163  }
164 
165  for (i = 0; i < max_num_sub_layers_minus1; i++) {
166  if (current->sub_layer_profile_present_flag[i]) {
167  us(2, sub_layer_profile_space[i], 0, 0, 1, i);
168  flags(sub_layer_tier_flag[i], 1, i);
169  ubs(5, sub_layer_profile_idc[i], 1, i);
170 
171  for (j = 0; j < 32; j++)
172  flags(sub_layer_profile_compatibility_flag[i][j], 2, i, j);
173 
174  flags(sub_layer_progressive_source_flag[i], 1, i);
175  flags(sub_layer_interlaced_source_flag[i], 1, i);
176  flags(sub_layer_non_packed_constraint_flag[i], 1, i);
177  flags(sub_layer_frame_only_constraint_flag[i], 1, i);
178 
179 #define profile_compatible(x) (current->sub_layer_profile_idc[i] == (x) || \
180  current->sub_layer_profile_compatibility_flag[i][x])
181  if (profile_compatible(4) || profile_compatible(5) ||
182  profile_compatible(6) || profile_compatible(7) ||
183  profile_compatible(8) || profile_compatible(9) ||
184  profile_compatible(10)) {
185  flags(sub_layer_max_12bit_constraint_flag[i], 1, i);
186  flags(sub_layer_max_10bit_constraint_flag[i], 1, i);
187  flags(sub_layer_max_8bit_constraint_flag[i], 1, i);
188  flags(sub_layer_max_422chroma_constraint_flag[i], 1, i);
189  flags(sub_layer_max_420chroma_constraint_flag[i], 1, i);
190  flags(sub_layer_max_monochrome_constraint_flag[i], 1, i);
191  flags(sub_layer_intra_constraint_flag[i], 1, i);
192  flags(sub_layer_one_picture_only_constraint_flag[i], 1, i);
193  flags(sub_layer_lower_bit_rate_constraint_flag[i], 1, i);
194 
195  if (profile_compatible(5)) {
196  flags(sub_layer_max_14bit_constraint_flag[i], 1, i);
197  fixed(24, sub_layer_reserved_zero_33bits, 0);
198  fixed( 9, sub_layer_reserved_zero_33bits, 0);
199  } else {
200  fixed(24, sub_layer_reserved_zero_34bits, 0);
201  fixed(10, sub_layer_reserved_zero_34bits, 0);
202  }
203  } else if (profile_compatible(2)) {
204  fixed(7, sub_layer_reserved_zero_7bits, 0);
205  flags(sub_layer_one_picture_only_constraint_flag[i], 1, i);
206  fixed(24, sub_layer_reserved_zero_43bits, 0);
207  fixed(11, sub_layer_reserved_zero_43bits, 0);
208  } else {
209  fixed(24, sub_layer_reserved_zero_43bits, 0);
210  fixed(19, sub_layer_reserved_zero_43bits, 0);
211  }
212 
213  if (profile_compatible(1) || profile_compatible(2) ||
214  profile_compatible(3) || profile_compatible(4) ||
215  profile_compatible(5) || profile_compatible(9)) {
216  flags(sub_layer_inbld_flag[i], 1, i);
217  } else {
218  fixed(1, sub_layer_reserved_zero_bit, 0);
219  }
220 #undef profile_compatible
221  }
222  if (current->sub_layer_level_present_flag[i])
223  ubs(8, sub_layer_level_idc[i], 1, i);
224  }
225 
226  return 0;
227 }
228 
229 static int FUNC(sub_layer_hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
230  H265RawHRDParameters *hrd,
231  int nal, int sub_layer_id)
232 {
233  H265RawSubLayerHRDParameters *current;
234  int err, i;
235 
236  if (nal)
237  current = &hrd->nal_sub_layer_hrd_parameters[sub_layer_id];
238  else
239  current = &hrd->vcl_sub_layer_hrd_parameters[sub_layer_id];
240 
241  for (i = 0; i <= hrd->cpb_cnt_minus1[sub_layer_id]; i++) {
242  ues(bit_rate_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
243  ues(cpb_size_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
244  if (hrd->sub_pic_hrd_params_present_flag) {
245  ues(cpb_size_du_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
246  ues(bit_rate_du_value_minus1[i], 0, UINT32_MAX - 1, 1, i);
247  }
248  flags(cbr_flag[i], 1, i);
249  }
250 
251  return 0;
252 }
253 
254 static int FUNC(hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
255  H265RawHRDParameters *current, int common_inf_present_flag,
256  int max_num_sub_layers_minus1)
257 {
258  int err, i;
259 
260  if (common_inf_present_flag) {
261  flag(nal_hrd_parameters_present_flag);
262  flag(vcl_hrd_parameters_present_flag);
263 
264  if (current->nal_hrd_parameters_present_flag ||
265  current->vcl_hrd_parameters_present_flag) {
266  flag(sub_pic_hrd_params_present_flag);
267  if (current->sub_pic_hrd_params_present_flag) {
268  ub(8, tick_divisor_minus2);
269  ub(5, du_cpb_removal_delay_increment_length_minus1);
270  flag(sub_pic_cpb_params_in_pic_timing_sei_flag);
271  ub(5, dpb_output_delay_du_length_minus1);
272  }
273 
274  ub(4, bit_rate_scale);
275  ub(4, cpb_size_scale);
276  if (current->sub_pic_hrd_params_present_flag)
277  ub(4, cpb_size_du_scale);
278 
279  ub(5, initial_cpb_removal_delay_length_minus1);
280  ub(5, au_cpb_removal_delay_length_minus1);
281  ub(5, dpb_output_delay_length_minus1);
282  } else {
283  infer(sub_pic_hrd_params_present_flag, 0);
284 
285  infer(initial_cpb_removal_delay_length_minus1, 23);
286  infer(au_cpb_removal_delay_length_minus1, 23);
287  infer(dpb_output_delay_length_minus1, 23);
288  }
289  }
290 
291  for (i = 0; i <= max_num_sub_layers_minus1; i++) {
292  flags(fixed_pic_rate_general_flag[i], 1, i);
293 
294  if (!current->fixed_pic_rate_general_flag[i])
295  flags(fixed_pic_rate_within_cvs_flag[i], 1, i);
296  else
297  infer(fixed_pic_rate_within_cvs_flag[i], 1);
298 
299  if (current->fixed_pic_rate_within_cvs_flag[i]) {
300  ues(elemental_duration_in_tc_minus1[i], 0, 2047, 1, i);
301  infer(low_delay_hrd_flag[i], 0);
302  } else
303  flags(low_delay_hrd_flag[i], 1, i);
304 
305  if (!current->low_delay_hrd_flag[i])
306  ues(cpb_cnt_minus1[i], 0, 31, 1, i);
307  else
308  infer(cpb_cnt_minus1[i], 0);
309 
310  if (current->nal_hrd_parameters_present_flag)
311  CHECK(FUNC(sub_layer_hrd_parameters)(ctx, rw, current, 0, i));
312  if (current->vcl_hrd_parameters_present_flag)
313  CHECK(FUNC(sub_layer_hrd_parameters)(ctx, rw, current, 1, i));
314  }
315 
316  return 0;
317 }
318 
319 static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
320  H265RawVUI *current, const H265RawSPS *sps)
321 {
322  int err;
323 
324  flag(aspect_ratio_info_present_flag);
325  if (current->aspect_ratio_info_present_flag) {
326  ub(8, aspect_ratio_idc);
327  if (current->aspect_ratio_idc == 255) {
328  ub(16, sar_width);
329  ub(16, sar_height);
330  }
331  } else {
332  infer(aspect_ratio_idc, 0);
333  }
334 
335  flag(overscan_info_present_flag);
336  if (current->overscan_info_present_flag)
337  flag(overscan_appropriate_flag);
338 
339  flag(video_signal_type_present_flag);
340  if (current->video_signal_type_present_flag) {
341  ub(3, video_format);
342  flag(video_full_range_flag);
343  flag(colour_description_present_flag);
344  if (current->colour_description_present_flag) {
345  ub(8, colour_primaries);
346  ub(8, transfer_characteristics);
347  ub(8, matrix_coefficients);
348  } else {
349  infer(colour_primaries, 2);
350  infer(transfer_characteristics, 2);
351  infer(matrix_coefficients, 2);
352  }
353  } else {
354  infer(video_format, 5);
355  infer(video_full_range_flag, 0);
356  infer(colour_primaries, 2);
357  infer(transfer_characteristics, 2);
358  infer(matrix_coefficients, 2);
359  }
360 
361  flag(chroma_loc_info_present_flag);
362  if (current->chroma_loc_info_present_flag) {
363  ue(chroma_sample_loc_type_top_field, 0, 5);
364  ue(chroma_sample_loc_type_bottom_field, 0, 5);
365  } else {
366  infer(chroma_sample_loc_type_top_field, 0);
367  infer(chroma_sample_loc_type_bottom_field, 0);
368  }
369 
370  flag(neutral_chroma_indication_flag);
371  flag(field_seq_flag);
372  flag(frame_field_info_present_flag);
373 
374  flag(default_display_window_flag);
375  if (current->default_display_window_flag) {
376  ue(def_disp_win_left_offset, 0, 16384);
377  ue(def_disp_win_right_offset, 0, 16384);
378  ue(def_disp_win_top_offset, 0, 16384);
379  ue(def_disp_win_bottom_offset, 0, 16384);
380  }
381 
382  flag(vui_timing_info_present_flag);
383  if (current->vui_timing_info_present_flag) {
384  u(32, vui_num_units_in_tick, 1, UINT32_MAX);
385  u(32, vui_time_scale, 1, UINT32_MAX);
386  flag(vui_poc_proportional_to_timing_flag);
387  if (current->vui_poc_proportional_to_timing_flag)
388  ue(vui_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1);
389 
390  flag(vui_hrd_parameters_present_flag);
391  if (current->vui_hrd_parameters_present_flag) {
392  CHECK(FUNC(hrd_parameters)(ctx, rw, &current->hrd_parameters,
393  1, sps->sps_max_sub_layers_minus1));
394  }
395  }
396 
397  flag(bitstream_restriction_flag);
398  if (current->bitstream_restriction_flag) {
399  flag(tiles_fixed_structure_flag);
400  flag(motion_vectors_over_pic_boundaries_flag);
401  flag(restricted_ref_pic_lists_flag);
402  ue(min_spatial_segmentation_idc, 0, 4095);
403  ue(max_bytes_per_pic_denom, 0, 16);
404  ue(max_bits_per_min_cu_denom, 0, 16);
405  ue(log2_max_mv_length_horizontal, 0, 16);
406  ue(log2_max_mv_length_vertical, 0, 16);
407  } else {
408  infer(tiles_fixed_structure_flag, 0);
409  infer(motion_vectors_over_pic_boundaries_flag, 1);
410  infer(min_spatial_segmentation_idc, 0);
411  infer(max_bytes_per_pic_denom, 2);
412  infer(max_bits_per_min_cu_denom, 1);
413  infer(log2_max_mv_length_horizontal, 15);
414  infer(log2_max_mv_length_vertical, 15);
415  }
416 
417  return 0;
418 }
419 
420 static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
421  H265RawVPS *current)
422 {
423  int err, i, j;
424 
425  HEADER("Video Parameter Set");
426 
427  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header, HEVC_NAL_VPS));
428 
429  ub(4, vps_video_parameter_set_id);
430 
431  flag(vps_base_layer_internal_flag);
432  flag(vps_base_layer_available_flag);
433  u(6, vps_max_layers_minus1, 0, HEVC_MAX_LAYERS - 1);
434  u(3, vps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1);
435  flag(vps_temporal_id_nesting_flag);
436 
437  if (current->vps_max_sub_layers_minus1 == 0 &&
438  current->vps_temporal_id_nesting_flag != 1) {
439  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: "
440  "vps_temporal_id_nesting_flag must be 1 if "
441  "vps_max_sub_layers_minus1 is 0.\n");
442  return AVERROR_INVALIDDATA;
443  }
444 
445  fixed(16, vps_reserved_0xffff_16bits, 0xffff);
446 
447  CHECK(FUNC(profile_tier_level)(ctx, rw, &current->profile_tier_level,
448  1, current->vps_max_sub_layers_minus1));
449 
450  flag(vps_sub_layer_ordering_info_present_flag);
451  for (i = (current->vps_sub_layer_ordering_info_present_flag ?
452  0 : current->vps_max_sub_layers_minus1);
453  i <= current->vps_max_sub_layers_minus1; i++) {
454  ues(vps_max_dec_pic_buffering_minus1[i],
455  0, HEVC_MAX_DPB_SIZE - 1, 1, i);
456  ues(vps_max_num_reorder_pics[i],
457  0, current->vps_max_dec_pic_buffering_minus1[i], 1, i);
458  ues(vps_max_latency_increase_plus1[i],
459  0, UINT32_MAX - 1, 1, i);
460  }
461  if (!current->vps_sub_layer_ordering_info_present_flag) {
462  for (i = 0; i < current->vps_max_sub_layers_minus1; i++) {
463  infer(vps_max_dec_pic_buffering_minus1[i],
464  current->vps_max_dec_pic_buffering_minus1[current->vps_max_sub_layers_minus1]);
465  infer(vps_max_num_reorder_pics[i],
466  current->vps_max_num_reorder_pics[current->vps_max_sub_layers_minus1]);
467  infer(vps_max_latency_increase_plus1[i],
468  current->vps_max_latency_increase_plus1[current->vps_max_sub_layers_minus1]);
469  }
470  }
471 
472  u(6, vps_max_layer_id, 0, HEVC_MAX_LAYERS - 1);
473  ue(vps_num_layer_sets_minus1, 0, HEVC_MAX_LAYER_SETS - 1);
474  for (i = 1; i <= current->vps_num_layer_sets_minus1; i++) {
475  for (j = 0; j <= current->vps_max_layer_id; j++)
476  flags(layer_id_included_flag[i][j], 2, i, j);
477  }
478  for (j = 0; j <= current->vps_max_layer_id; j++)
479  infer(layer_id_included_flag[0][j], j == 0);
480 
481  flag(vps_timing_info_present_flag);
482  if (current->vps_timing_info_present_flag) {
483  u(32, vps_num_units_in_tick, 1, UINT32_MAX);
484  u(32, vps_time_scale, 1, UINT32_MAX);
485  flag(vps_poc_proportional_to_timing_flag);
486  if (current->vps_poc_proportional_to_timing_flag)
487  ue(vps_num_ticks_poc_diff_one_minus1, 0, UINT32_MAX - 1);
488  ue(vps_num_hrd_parameters, 0, current->vps_num_layer_sets_minus1 + 1);
489  for (i = 0; i < current->vps_num_hrd_parameters; i++) {
490  ues(hrd_layer_set_idx[i],
491  current->vps_base_layer_internal_flag ? 0 : 1,
492  current->vps_num_layer_sets_minus1, 1, i);
493  if (i > 0)
494  flags(cprms_present_flag[i], 1, i);
495  else
496  infer(cprms_present_flag[0], 1);
497 
498  CHECK(FUNC(hrd_parameters)(ctx, rw, &current->hrd_parameters[i],
499  current->cprms_present_flag[i],
500  current->vps_max_sub_layers_minus1));
501  }
502  }
503 
504  flag(vps_extension_flag);
505  if (current->vps_extension_flag)
506  CHECK(FUNC(extension_data)(ctx, rw, &current->extension_data));
507 
508  CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
509 
510  return 0;
511 }
512 
513 static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw,
514  H265RawSTRefPicSet *current, int st_rps_idx,
515  const H265RawSPS *sps)
516 {
517  int err, i, j;
518 
519  if (st_rps_idx != 0)
520  flag(inter_ref_pic_set_prediction_flag);
521  else
522  infer(inter_ref_pic_set_prediction_flag, 0);
523 
524  if (current->inter_ref_pic_set_prediction_flag) {
525  unsigned int ref_rps_idx, num_delta_pocs, num_ref_pics;
526  const H265RawSTRefPicSet *ref;
527  int delta_rps, d_poc;
528  int ref_delta_poc_s0[HEVC_MAX_REFS], ref_delta_poc_s1[HEVC_MAX_REFS];
529  int delta_poc_s0[HEVC_MAX_REFS], delta_poc_s1[HEVC_MAX_REFS];
530  uint8_t used_by_curr_pic_s0[HEVC_MAX_REFS],
531  used_by_curr_pic_s1[HEVC_MAX_REFS];
532 
533  if (st_rps_idx == sps->num_short_term_ref_pic_sets)
534  ue(delta_idx_minus1, 0, st_rps_idx - 1);
535  else
536  infer(delta_idx_minus1, 0);
537 
538  ref_rps_idx = st_rps_idx - (current->delta_idx_minus1 + 1);
539  ref = &sps->st_ref_pic_set[ref_rps_idx];
540  num_delta_pocs = ref->num_negative_pics + ref->num_positive_pics;
541  av_assert0(num_delta_pocs < HEVC_MAX_DPB_SIZE);
542 
543  flag(delta_rps_sign);
544  ue(abs_delta_rps_minus1, 0, INT16_MAX);
545  delta_rps = (1 - 2 * current->delta_rps_sign) *
546  (current->abs_delta_rps_minus1 + 1);
547 
548  num_ref_pics = 0;
549  for (j = 0; j <= num_delta_pocs; j++) {
550  flags(used_by_curr_pic_flag[j], 1, j);
551  if (!current->used_by_curr_pic_flag[j])
552  flags(use_delta_flag[j], 1, j);
553  else
554  infer(use_delta_flag[j], 1);
555  if (current->use_delta_flag[j])
556  ++num_ref_pics;
557  }
558  if (num_ref_pics >= HEVC_MAX_DPB_SIZE) {
559  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: "
560  "short-term ref pic set %d "
561  "contains too many pictures.\n", st_rps_idx);
562  return AVERROR_INVALIDDATA;
563  }
564 
565  // Since the stored form of an RPS here is actually the delta-step
566  // form used when inter_ref_pic_set_prediction_flag is not set, we
567  // need to reconstruct that here in order to be able to refer to
568  // the RPS later (which is required for parsing, because we don't
569  // even know what syntax elements appear without it). Therefore,
570  // this code takes the delta-step form of the reference set, turns
571  // it into the delta-array form, applies the prediction process of
572  // 7.4.8, converts the result back to the delta-step form, and
573  // stores that as the current set for future use. Note that the
574  // inferences here mean that writers using prediction will need
575  // to fill in the delta-step values correctly as well - since the
576  // whole RPS prediction process is somewhat overly sophisticated,
577  // this hopefully forms a useful check for them to ensure their
578  // predicted form actually matches what was intended rather than
579  // an onerous additional requirement.
580 
581  d_poc = 0;
582  for (i = 0; i < ref->num_negative_pics; i++) {
583  d_poc -= ref->delta_poc_s0_minus1[i] + 1;
584  ref_delta_poc_s0[i] = d_poc;
585  }
586  d_poc = 0;
587  for (i = 0; i < ref->num_positive_pics; i++) {
588  d_poc += ref->delta_poc_s1_minus1[i] + 1;
589  ref_delta_poc_s1[i] = d_poc;
590  }
591 
592  i = 0;
593  for (j = ref->num_positive_pics - 1; j >= 0; j--) {
594  d_poc = ref_delta_poc_s1[j] + delta_rps;
595  if (d_poc < 0 && current->use_delta_flag[ref->num_negative_pics + j]) {
596  delta_poc_s0[i] = d_poc;
597  used_by_curr_pic_s0[i++] =
598  current->used_by_curr_pic_flag[ref->num_negative_pics + j];
599  }
600  }
601  if (delta_rps < 0 && current->use_delta_flag[num_delta_pocs]) {
602  delta_poc_s0[i] = delta_rps;
603  used_by_curr_pic_s0[i++] =
604  current->used_by_curr_pic_flag[num_delta_pocs];
605  }
606  for (j = 0; j < ref->num_negative_pics; j++) {
607  d_poc = ref_delta_poc_s0[j] + delta_rps;
608  if (d_poc < 0 && current->use_delta_flag[j]) {
609  delta_poc_s0[i] = d_poc;
610  used_by_curr_pic_s0[i++] = current->used_by_curr_pic_flag[j];
611  }
612  }
613 
614  infer(num_negative_pics, i);
615  for (i = 0; i < current->num_negative_pics; i++) {
616  infer(delta_poc_s0_minus1[i],
617  -(delta_poc_s0[i] - (i == 0 ? 0 : delta_poc_s0[i - 1])) - 1);
618  infer(used_by_curr_pic_s0_flag[i], used_by_curr_pic_s0[i]);
619  }
620 
621  i = 0;
622  for (j = ref->num_negative_pics - 1; j >= 0; j--) {
623  d_poc = ref_delta_poc_s0[j] + delta_rps;
624  if (d_poc > 0 && current->use_delta_flag[j]) {
625  delta_poc_s1[i] = d_poc;
626  used_by_curr_pic_s1[i++] = current->used_by_curr_pic_flag[j];
627  }
628  }
629  if (delta_rps > 0 && current->use_delta_flag[num_delta_pocs]) {
630  delta_poc_s1[i] = delta_rps;
631  used_by_curr_pic_s1[i++] =
632  current->used_by_curr_pic_flag[num_delta_pocs];
633  }
634  for (j = 0; j < ref->num_positive_pics; j++) {
635  d_poc = ref_delta_poc_s1[j] + delta_rps;
636  if (d_poc > 0 && current->use_delta_flag[ref->num_negative_pics + j]) {
637  delta_poc_s1[i] = d_poc;
638  used_by_curr_pic_s1[i++] =
639  current->used_by_curr_pic_flag[ref->num_negative_pics + j];
640  }
641  }
642 
643  infer(num_positive_pics, i);
644  for (i = 0; i < current->num_positive_pics; i++) {
645  infer(delta_poc_s1_minus1[i],
646  delta_poc_s1[i] - (i == 0 ? 0 : delta_poc_s1[i - 1]) - 1);
647  infer(used_by_curr_pic_s1_flag[i], used_by_curr_pic_s1[i]);
648  }
649 
650  } else {
651  ue(num_negative_pics, 0, 15);
652  ue(num_positive_pics, 0, 15 - current->num_negative_pics);
653 
654  for (i = 0; i < current->num_negative_pics; i++) {
655  ues(delta_poc_s0_minus1[i], 0, INT16_MAX, 1, i);
656  flags(used_by_curr_pic_s0_flag[i], 1, i);
657  }
658 
659  for (i = 0; i < current->num_positive_pics; i++) {
660  ues(delta_poc_s1_minus1[i], 0, INT16_MAX, 1, i);
661  flags(used_by_curr_pic_s1_flag[i], 1, i);
662  }
663  }
664 
665  return 0;
666 }
667 
668 static int FUNC(scaling_list_data)(CodedBitstreamContext *ctx, RWContext *rw,
669  H265RawScalingList *current)
670 {
671  int sizeId, matrixId;
672  int err, n, i;
673 
674  for (sizeId = 0; sizeId < 4; sizeId++) {
675  for (matrixId = 0; matrixId < 6; matrixId += (sizeId == 3 ? 3 : 1)) {
676  flags(scaling_list_pred_mode_flag[sizeId][matrixId],
677  2, sizeId, matrixId);
678  if (!current->scaling_list_pred_mode_flag[sizeId][matrixId]) {
679  ues(scaling_list_pred_matrix_id_delta[sizeId][matrixId],
680  0, sizeId == 3 ? matrixId / 3 : matrixId,
681  2, sizeId, matrixId);
682  } else {
683  n = FFMIN(64, 1 << (4 + (sizeId << 1)));
684  if (sizeId > 1) {
685  ses(scaling_list_dc_coef_minus8[sizeId - 2][matrixId], -7, +247,
686  2, sizeId - 2, matrixId);
687  }
688  for (i = 0; i < n; i++) {
689  ses(scaling_list_delta_coeff[sizeId][matrixId][i],
690  -128, +127, 3, sizeId, matrixId, i);
691  }
692  }
693  }
694  }
695 
696  return 0;
697 }
698 
699 static int FUNC(sps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw,
700  H265RawSPS *current)
701 {
702  int err;
703 
704  flag(transform_skip_rotation_enabled_flag);
705  flag(transform_skip_context_enabled_flag);
706  flag(implicit_rdpcm_enabled_flag);
707  flag(explicit_rdpcm_enabled_flag);
708  flag(extended_precision_processing_flag);
709  flag(intra_smoothing_disabled_flag);
710  flag(high_precision_offsets_enabled_flag);
711  flag(persistent_rice_adaptation_enabled_flag);
712  flag(cabac_bypass_alignment_enabled_flag);
713 
714  return 0;
715 }
716 
717 static int FUNC(sps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw,
718  H265RawSPS *current)
719 {
720  int err, comp, i;
721 
722  flag(sps_curr_pic_ref_enabled_flag);
723 
724  flag(palette_mode_enabled_flag);
725  if (current->palette_mode_enabled_flag) {
726  ue(palette_max_size, 0, 64);
727  ue(delta_palette_max_predictor_size, 0, 128);
728 
729  flag(sps_palette_predictor_initializer_present_flag);
730  if (current->sps_palette_predictor_initializer_present_flag) {
731  ue(sps_num_palette_predictor_initializer_minus1, 0, 128);
732  for (comp = 0; comp < (current->chroma_format_idc ? 3 : 1); comp++) {
733  int bit_depth = comp == 0 ? current->bit_depth_luma_minus8 + 8
734  : current->bit_depth_chroma_minus8 + 8;
735  for (i = 0; i <= current->sps_num_palette_predictor_initializer_minus1; i++)
736  ubs(bit_depth, sps_palette_predictor_initializers[comp][i], 2, comp, i);
737  }
738  }
739  }
740 
741  u(2, motion_vector_resolution_control_idc, 0, 2);
742  flag(intra_boundary_filtering_disable_flag);
743 
744  return 0;
745 }
746 
747 static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
748  H265RawSPS *current)
749 {
750  CodedBitstreamH265Context *h265 = ctx->priv_data;
751  const H265RawVPS *vps;
752  int err, i;
753  unsigned int min_cb_log2_size_y, ctb_log2_size_y,
754  min_cb_size_y, min_tb_log2_size_y;
755 
756  HEADER("Sequence Parameter Set");
757 
758  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header, HEVC_NAL_SPS));
759 
760  ub(4, sps_video_parameter_set_id);
761  h265->active_vps = vps = h265->vps[current->sps_video_parameter_set_id];
762 
763  u(3, sps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1);
764  flag(sps_temporal_id_nesting_flag);
765  if (vps) {
766  if (vps->vps_max_sub_layers_minus1 > current->sps_max_sub_layers_minus1) {
767  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: "
768  "sps_max_sub_layers_minus1 (%d) must be less than or equal to "
769  "vps_max_sub_layers_minus1 (%d).\n",
770  vps->vps_max_sub_layers_minus1,
771  current->sps_max_sub_layers_minus1);
772  return AVERROR_INVALIDDATA;
773  }
774  if (vps->vps_temporal_id_nesting_flag &&
775  !current->sps_temporal_id_nesting_flag) {
776  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: "
777  "sps_temporal_id_nesting_flag must be 1 if "
778  "vps_temporal_id_nesting_flag is 1.\n");
779  return AVERROR_INVALIDDATA;
780  }
781  }
782 
783  CHECK(FUNC(profile_tier_level)(ctx, rw, &current->profile_tier_level,
784  1, current->sps_max_sub_layers_minus1));
785 
786  ue(sps_seq_parameter_set_id, 0, 15);
787 
788  ue(chroma_format_idc, 0, 3);
789  if (current->chroma_format_idc == 3)
790  flag(separate_colour_plane_flag);
791  else
792  infer(separate_colour_plane_flag, 0);
793 
794  ue(pic_width_in_luma_samples, 1, HEVC_MAX_WIDTH);
795  ue(pic_height_in_luma_samples, 1, HEVC_MAX_HEIGHT);
796 
797  flag(conformance_window_flag);
798  if (current->conformance_window_flag) {
799  ue(conf_win_left_offset, 0, current->pic_width_in_luma_samples);
800  ue(conf_win_right_offset, 0, current->pic_width_in_luma_samples);
801  ue(conf_win_top_offset, 0, current->pic_height_in_luma_samples);
802  ue(conf_win_bottom_offset, 0, current->pic_height_in_luma_samples);
803  } else {
804  infer(conf_win_left_offset, 0);
805  infer(conf_win_right_offset, 0);
806  infer(conf_win_top_offset, 0);
807  infer(conf_win_bottom_offset, 0);
808  }
809 
810  ue(bit_depth_luma_minus8, 0, 8);
811  ue(bit_depth_chroma_minus8, 0, 8);
812 
813  ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12);
814 
815  flag(sps_sub_layer_ordering_info_present_flag);
816  for (i = (current->sps_sub_layer_ordering_info_present_flag ?
817  0 : current->sps_max_sub_layers_minus1);
818  i <= current->sps_max_sub_layers_minus1; i++) {
819  ues(sps_max_dec_pic_buffering_minus1[i],
820  0, HEVC_MAX_DPB_SIZE - 1, 1, i);
821  ues(sps_max_num_reorder_pics[i],
822  0, current->sps_max_dec_pic_buffering_minus1[i], 1, i);
823  ues(sps_max_latency_increase_plus1[i],
824  0, UINT32_MAX - 1, 1, i);
825  }
826  if (!current->sps_sub_layer_ordering_info_present_flag) {
827  for (i = 0; i < current->sps_max_sub_layers_minus1; i++) {
828  infer(sps_max_dec_pic_buffering_minus1[i],
829  current->sps_max_dec_pic_buffering_minus1[current->sps_max_sub_layers_minus1]);
830  infer(sps_max_num_reorder_pics[i],
831  current->sps_max_num_reorder_pics[current->sps_max_sub_layers_minus1]);
832  infer(sps_max_latency_increase_plus1[i],
833  current->sps_max_latency_increase_plus1[current->sps_max_sub_layers_minus1]);
834  }
835  }
836 
837  ue(log2_min_luma_coding_block_size_minus3, 0, 3);
838  min_cb_log2_size_y = current->log2_min_luma_coding_block_size_minus3 + 3;
839 
840  ue(log2_diff_max_min_luma_coding_block_size, 0, 3);
841  ctb_log2_size_y = min_cb_log2_size_y +
842  current->log2_diff_max_min_luma_coding_block_size;
843 
844  min_cb_size_y = 1 << min_cb_log2_size_y;
845  if (current->pic_width_in_luma_samples % min_cb_size_y ||
846  current->pic_height_in_luma_samples % min_cb_size_y) {
847  av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid dimensions: %ux%u not divisible "
848  "by MinCbSizeY = %u.\n", current->pic_width_in_luma_samples,
849  current->pic_height_in_luma_samples, min_cb_size_y);
850  return AVERROR_INVALIDDATA;
851  }
852 
853  ue(log2_min_luma_transform_block_size_minus2, 0, min_cb_log2_size_y - 3);
854  min_tb_log2_size_y = current->log2_min_luma_transform_block_size_minus2 + 2;
855 
856  ue(log2_diff_max_min_luma_transform_block_size,
857  0, FFMIN(ctb_log2_size_y, 5) - min_tb_log2_size_y);
858 
859  ue(max_transform_hierarchy_depth_inter,
860  0, ctb_log2_size_y - min_tb_log2_size_y);
861  ue(max_transform_hierarchy_depth_intra,
862  0, ctb_log2_size_y - min_tb_log2_size_y);
863 
864  flag(scaling_list_enabled_flag);
865  if (current->scaling_list_enabled_flag) {
866  flag(sps_scaling_list_data_present_flag);
867  if (current->sps_scaling_list_data_present_flag)
868  CHECK(FUNC(scaling_list_data)(ctx, rw, &current->scaling_list));
869  } else {
870  infer(sps_scaling_list_data_present_flag, 0);
871  }
872 
873  flag(amp_enabled_flag);
874  flag(sample_adaptive_offset_enabled_flag);
875 
876  flag(pcm_enabled_flag);
877  if (current->pcm_enabled_flag) {
878  u(4, pcm_sample_bit_depth_luma_minus1,
879  0, current->bit_depth_luma_minus8 + 8 - 1);
880  u(4, pcm_sample_bit_depth_chroma_minus1,
881  0, current->bit_depth_chroma_minus8 + 8 - 1);
882 
883  ue(log2_min_pcm_luma_coding_block_size_minus3,
884  FFMIN(min_cb_log2_size_y, 5) - 3, FFMIN(ctb_log2_size_y, 5) - 3);
885  ue(log2_diff_max_min_pcm_luma_coding_block_size,
886  0, FFMIN(ctb_log2_size_y, 5) - (current->log2_min_pcm_luma_coding_block_size_minus3 + 3));
887 
888  flag(pcm_loop_filter_disabled_flag);
889  }
890 
891  ue(num_short_term_ref_pic_sets, 0, HEVC_MAX_SHORT_TERM_REF_PIC_SETS);
892  for (i = 0; i < current->num_short_term_ref_pic_sets; i++)
893  CHECK(FUNC(st_ref_pic_set)(ctx, rw, &current->st_ref_pic_set[i], i, current));
894 
895  flag(long_term_ref_pics_present_flag);
896  if (current->long_term_ref_pics_present_flag) {
897  ue(num_long_term_ref_pics_sps, 0, HEVC_MAX_LONG_TERM_REF_PICS);
898  for (i = 0; i < current->num_long_term_ref_pics_sps; i++) {
899  ubs(current->log2_max_pic_order_cnt_lsb_minus4 + 4,
900  lt_ref_pic_poc_lsb_sps[i], 1, i);
901  flags(used_by_curr_pic_lt_sps_flag[i], 1, i);
902  }
903  }
904 
905  flag(sps_temporal_mvp_enabled_flag);
906  flag(strong_intra_smoothing_enabled_flag);
907 
908  flag(vui_parameters_present_flag);
909  if (current->vui_parameters_present_flag)
910  CHECK(FUNC(vui_parameters)(ctx, rw, &current->vui, current));
911 
912  flag(sps_extension_present_flag);
913  if (current->sps_extension_present_flag) {
914  flag(sps_range_extension_flag);
915  flag(sps_multilayer_extension_flag);
916  flag(sps_3d_extension_flag);
917  flag(sps_scc_extension_flag);
918  ub(4, sps_extension_4bits);
919  }
920 
921  if (current->sps_range_extension_flag)
922  CHECK(FUNC(sps_range_extension)(ctx, rw, current));
923  if (current->sps_multilayer_extension_flag)
924  return AVERROR_PATCHWELCOME;
925  if (current->sps_3d_extension_flag)
926  return AVERROR_PATCHWELCOME;
927  if (current->sps_scc_extension_flag)
928  CHECK(FUNC(sps_scc_extension)(ctx, rw, current));
929  if (current->sps_extension_4bits)
930  CHECK(FUNC(extension_data)(ctx, rw, &current->extension_data));
931 
932  CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
933 
934  return 0;
935 }
936 
937 static int FUNC(pps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw,
938  H265RawPPS *current)
939 {
940  CodedBitstreamH265Context *h265 = ctx->priv_data;
941  const H265RawSPS *sps = h265->active_sps;
942  int err, i;
943 
944  if (current->transform_skip_enabled_flag)
945  ue(log2_max_transform_skip_block_size_minus2, 0, 3);
946  flag(cross_component_prediction_enabled_flag);
947 
948  flag(chroma_qp_offset_list_enabled_flag);
949  if (current->chroma_qp_offset_list_enabled_flag) {
950  ue(diff_cu_chroma_qp_offset_depth,
951  0, sps->log2_diff_max_min_luma_coding_block_size);
952  ue(chroma_qp_offset_list_len_minus1, 0, 5);
953  for (i = 0; i <= current->chroma_qp_offset_list_len_minus1; i++) {
954  ses(cb_qp_offset_list[i], -12, +12, 1, i);
955  ses(cr_qp_offset_list[i], -12, +12, 1, i);
956  }
957  }
958 
959  ue(log2_sao_offset_scale_luma, 0, FFMAX(0, sps->bit_depth_luma_minus8 - 2));
960  ue(log2_sao_offset_scale_chroma, 0, FFMAX(0, sps->bit_depth_chroma_minus8 - 2));
961 
962  return 0;
963 }
964 
965 static int FUNC(pps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw,
966  H265RawPPS *current)
967 {
968  int err, comp, i;
969 
970  flag(pps_curr_pic_ref_enabled_flag);
971 
972  flag(residual_adaptive_colour_transform_enabled_flag);
973  if (current->residual_adaptive_colour_transform_enabled_flag) {
974  flag(pps_slice_act_qp_offsets_present_flag);
975  se(pps_act_y_qp_offset_plus5, -7, +17);
976  se(pps_act_cb_qp_offset_plus5, -7, +17);
977  se(pps_act_cr_qp_offset_plus3, -9, +15);
978  } else {
979  infer(pps_slice_act_qp_offsets_present_flag, 0);
980  infer(pps_act_y_qp_offset_plus5, 0);
981  infer(pps_act_cb_qp_offset_plus5, 0);
982  infer(pps_act_cr_qp_offset_plus3, 0);
983  }
984 
985  flag(pps_palette_predictor_initializer_present_flag);
986  if (current->pps_palette_predictor_initializer_present_flag) {
987  ue(pps_num_palette_predictor_initializer, 0, 128);
988  if (current->pps_num_palette_predictor_initializer > 0) {
989  flag(monochrome_palette_flag);
990  ue(luma_bit_depth_entry_minus8, 0, 8);
991  if (!current->monochrome_palette_flag)
992  ue(chroma_bit_depth_entry_minus8, 0, 8);
993  for (comp = 0; comp < (current->monochrome_palette_flag ? 1 : 3); comp++) {
994  int bit_depth = comp == 0 ? current->luma_bit_depth_entry_minus8 + 8
995  : current->chroma_bit_depth_entry_minus8 + 8;
996  for (i = 0; i < current->pps_num_palette_predictor_initializer; i++)
997  ubs(bit_depth, pps_palette_predictor_initializers[comp][i], 2, comp, i);
998  }
999  }
1000  }
1001 
1002  return 0;
1003 }
1004 
1005 static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw,
1006  H265RawPPS *current)
1007 {
1008  CodedBitstreamH265Context *h265 = ctx->priv_data;
1009  const H265RawSPS *sps;
1010  int err, i;
1011 
1012  HEADER("Picture Parameter Set");
1013 
1014  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header, HEVC_NAL_PPS));
1015 
1016  ue(pps_pic_parameter_set_id, 0, 63);
1017  ue(pps_seq_parameter_set_id, 0, 15);
1018  sps = h265->sps[current->pps_seq_parameter_set_id];
1019  if (!sps) {
1020  av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1021  current->pps_seq_parameter_set_id);
1022  return AVERROR_INVALIDDATA;
1023  }
1024  h265->active_sps = sps;
1025 
1026  flag(dependent_slice_segments_enabled_flag);
1027  flag(output_flag_present_flag);
1028  ub(3, num_extra_slice_header_bits);
1029  flag(sign_data_hiding_enabled_flag);
1030  flag(cabac_init_present_flag);
1031 
1032  ue(num_ref_idx_l0_default_active_minus1, 0, 14);
1033  ue(num_ref_idx_l1_default_active_minus1, 0, 14);
1034 
1035  se(init_qp_minus26, -(26 + 6 * sps->bit_depth_luma_minus8), +25);
1036 
1037  flag(constrained_intra_pred_flag);
1038  flag(transform_skip_enabled_flag);
1039  flag(cu_qp_delta_enabled_flag);
1040  if (current->cu_qp_delta_enabled_flag)
1041  ue(diff_cu_qp_delta_depth,
1042  0, sps->log2_diff_max_min_luma_coding_block_size);
1043  else
1044  infer(diff_cu_qp_delta_depth, 0);
1045 
1046  se(pps_cb_qp_offset, -12, +12);
1047  se(pps_cr_qp_offset, -12, +12);
1048  flag(pps_slice_chroma_qp_offsets_present_flag);
1049 
1050  flag(weighted_pred_flag);
1051  flag(weighted_bipred_flag);
1052 
1053  flag(transquant_bypass_enabled_flag);
1054  flag(tiles_enabled_flag);
1055  flag(entropy_coding_sync_enabled_flag);
1056 
1057  if (current->tiles_enabled_flag) {
1058  ue(num_tile_columns_minus1, 0, HEVC_MAX_TILE_COLUMNS);
1059  ue(num_tile_rows_minus1, 0, HEVC_MAX_TILE_ROWS);
1060  flag(uniform_spacing_flag);
1061  if (!current->uniform_spacing_flag) {
1062  for (i = 0; i < current->num_tile_columns_minus1; i++)
1063  ues(column_width_minus1[i], 0, sps->pic_width_in_luma_samples, 1, i);
1064  for (i = 0; i < current->num_tile_rows_minus1; i++)
1065  ues(row_height_minus1[i], 0, sps->pic_height_in_luma_samples, 1, i);
1066  }
1067  flag(loop_filter_across_tiles_enabled_flag);
1068  } else {
1069  infer(num_tile_columns_minus1, 0);
1070  infer(num_tile_rows_minus1, 0);
1071  }
1072 
1073  flag(pps_loop_filter_across_slices_enabled_flag);
1074  flag(deblocking_filter_control_present_flag);
1075  if (current->deblocking_filter_control_present_flag) {
1076  flag(deblocking_filter_override_enabled_flag);
1077  flag(pps_deblocking_filter_disabled_flag);
1078  if (!current->pps_deblocking_filter_disabled_flag) {
1079  se(pps_beta_offset_div2, -6, +6);
1080  se(pps_tc_offset_div2, -6, +6);
1081  } else {
1082  infer(pps_beta_offset_div2, 0);
1083  infer(pps_tc_offset_div2, 0);
1084  }
1085  } else {
1086  infer(deblocking_filter_override_enabled_flag, 0);
1087  infer(pps_deblocking_filter_disabled_flag, 0);
1088  infer(pps_beta_offset_div2, 0);
1089  infer(pps_tc_offset_div2, 0);
1090  }
1091 
1092  flag(pps_scaling_list_data_present_flag);
1093  if (current->pps_scaling_list_data_present_flag)
1094  CHECK(FUNC(scaling_list_data)(ctx, rw, &current->scaling_list));
1095 
1096  flag(lists_modification_present_flag);
1097 
1098  ue(log2_parallel_merge_level_minus2,
1099  0, (sps->log2_min_luma_coding_block_size_minus3 + 3 +
1100  sps->log2_diff_max_min_luma_coding_block_size - 2));
1101 
1102  flag(slice_segment_header_extension_present_flag);
1103 
1104  flag(pps_extension_present_flag);
1105  if (current->pps_extension_present_flag) {
1106  flag(pps_range_extension_flag);
1107  flag(pps_multilayer_extension_flag);
1108  flag(pps_3d_extension_flag);
1109  flag(pps_scc_extension_flag);
1110  ub(4, pps_extension_4bits);
1111  }
1112  if (current->pps_range_extension_flag)
1113  CHECK(FUNC(pps_range_extension)(ctx, rw, current));
1114  if (current->pps_multilayer_extension_flag)
1115  return AVERROR_PATCHWELCOME;
1116  if (current->pps_3d_extension_flag)
1117  return AVERROR_PATCHWELCOME;
1118  if (current->pps_scc_extension_flag)
1119  CHECK(FUNC(pps_scc_extension)(ctx, rw, current));
1120  if (current->pps_extension_4bits)
1121  CHECK(FUNC(extension_data)(ctx, rw, &current->extension_data));
1122 
1123  CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
1124 
1125  return 0;
1126 }
1127 
1128 static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw,
1129  H265RawAUD *current)
1130 {
1131  int err;
1132 
1133  HEADER("Access Unit Delimiter");
1134 
1135  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header, HEVC_NAL_AUD));
1136 
1137  u(3, pic_type, 0, 2);
1138 
1139  CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
1140 
1141  return 0;
1142 }
1143 
1144 static int FUNC(ref_pic_lists_modification)(CodedBitstreamContext *ctx, RWContext *rw,
1145  H265RawSliceHeader *current,
1146  unsigned int num_pic_total_curr)
1147 {
1148  unsigned int entry_size;
1149  int err, i;
1150 
1151  entry_size = av_log2(num_pic_total_curr - 1) + 1;
1152 
1153  flag(ref_pic_list_modification_flag_l0);
1154  if (current->ref_pic_list_modification_flag_l0) {
1155  for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++)
1156  us(entry_size, list_entry_l0[i], 0, num_pic_total_curr - 1, 1, i);
1157  }
1158 
1159  if (current->slice_type == HEVC_SLICE_B) {
1160  flag(ref_pic_list_modification_flag_l1);
1161  if (current->ref_pic_list_modification_flag_l1) {
1162  for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++)
1163  us(entry_size, list_entry_l1[i], 0, num_pic_total_curr - 1, 1, i);
1164  }
1165  }
1166 
1167  return 0;
1168 }
1169 
1170 static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
1171  H265RawSliceHeader *current)
1172 {
1173  CodedBitstreamH265Context *h265 = ctx->priv_data;
1174  const H265RawSPS *sps = h265->active_sps;
1175  int err, i, j;
1176  int chroma = !sps->separate_colour_plane_flag &&
1177  sps->chroma_format_idc != 0;
1178 
1179  ue(luma_log2_weight_denom, 0, 7);
1180  if (chroma)
1181  se(delta_chroma_log2_weight_denom, -7, 7);
1182  else
1183  infer(delta_chroma_log2_weight_denom, 0);
1184 
1185  for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
1186  if (1 /* is not same POC and same layer_id */)
1187  flags(luma_weight_l0_flag[i], 1, i);
1188  else
1189  infer(luma_weight_l0_flag[i], 0);
1190  }
1191  if (chroma) {
1192  for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
1193  if (1 /* is not same POC and same layer_id */)
1194  flags(chroma_weight_l0_flag[i], 1, i);
1195  else
1196  infer(chroma_weight_l0_flag[i], 0);
1197  }
1198  }
1199 
1200  for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
1201  if (current->luma_weight_l0_flag[i]) {
1202  ses(delta_luma_weight_l0[i], -128, +127, 1, i);
1203  ses(luma_offset_l0[i],
1204  -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
1205  ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i);
1206  } else {
1207  infer(delta_luma_weight_l0[i], 0);
1208  infer(luma_offset_l0[i], 0);
1209  }
1210  if (current->chroma_weight_l0_flag[i]) {
1211  for (j = 0; j < 2; j++) {
1212  ses(delta_chroma_weight_l0[i][j], -128, +127, 2, i, j);
1213  ses(chroma_offset_l0[i][j],
1214  -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
1215  ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j);
1216  }
1217  } else {
1218  for (j = 0; j < 2; j++) {
1219  infer(delta_chroma_weight_l0[i][j], 0);
1220  infer(chroma_offset_l0[i][j], 0);
1221  }
1222  }
1223  }
1224 
1225  if (current->slice_type == HEVC_SLICE_B) {
1226  for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
1227  if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */)
1228  flags(luma_weight_l1_flag[i], 1, i);
1229  else
1230  infer(luma_weight_l1_flag[i], 0);
1231  }
1232  if (chroma) {
1233  for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
1234  if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */)
1235  flags(chroma_weight_l1_flag[i], 1, i);
1236  else
1237  infer(chroma_weight_l1_flag[i], 0);
1238  }
1239  }
1240 
1241  for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
1242  if (current->luma_weight_l1_flag[i]) {
1243  ses(delta_luma_weight_l1[i], -128, +127, 1, i);
1244  ses(luma_offset_l1[i],
1245  -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
1246  ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i);
1247  } else {
1248  infer(delta_luma_weight_l1[i], 0);
1249  infer(luma_offset_l1[i], 0);
1250  }
1251  if (current->chroma_weight_l1_flag[i]) {
1252  for (j = 0; j < 2; j++) {
1253  ses(delta_chroma_weight_l1[i][j], -128, +127, 2, i, j);
1254  ses(chroma_offset_l1[i][j],
1255  -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
1256  ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j);
1257  }
1258  } else {
1259  for (j = 0; j < 2; j++) {
1260  infer(delta_chroma_weight_l1[i][j], 0);
1261  infer(chroma_offset_l1[i][j], 0);
1262  }
1263  }
1264  }
1265  }
1266 
1267  return 0;
1268 }
1269 
1270 static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw,
1271  H265RawSliceHeader *current)
1272 {
1273  CodedBitstreamH265Context *h265 = ctx->priv_data;
1274  const H265RawSPS *sps;
1275  const H265RawPPS *pps;
1276  unsigned int min_cb_log2_size_y, ctb_log2_size_y, ctb_size_y;
1277  unsigned int pic_width_in_ctbs_y, pic_height_in_ctbs_y, pic_size_in_ctbs_y;
1278  unsigned int num_pic_total_curr = 0;
1279  int err, i;
1280 
1281  HEADER("Slice Segment Header");
1282 
1283  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header, -1));
1284 
1285  flag(first_slice_segment_in_pic_flag);
1286 
1287  if (current->nal_unit_header.nal_unit_type >= HEVC_NAL_BLA_W_LP &&
1288  current->nal_unit_header.nal_unit_type <= HEVC_NAL_RSV_IRAP_VCL23)
1289  flag(no_output_of_prior_pics_flag);
1290 
1291  ue(slice_pic_parameter_set_id, 0, 63);
1292 
1293  pps = h265->pps[current->slice_pic_parameter_set_id];
1294  if (!pps) {
1295  av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
1296  current->slice_pic_parameter_set_id);
1297  return AVERROR_INVALIDDATA;
1298  }
1299  h265->active_pps = pps;
1300 
1301  sps = h265->sps[pps->pps_seq_parameter_set_id];
1302  if (!sps) {
1303  av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1304  pps->pps_seq_parameter_set_id);
1305  return AVERROR_INVALIDDATA;
1306  }
1307  h265->active_sps = sps;
1308 
1309  min_cb_log2_size_y = sps->log2_min_luma_coding_block_size_minus3 + 3;
1310  ctb_log2_size_y = min_cb_log2_size_y + sps->log2_diff_max_min_luma_coding_block_size;
1311  ctb_size_y = 1 << ctb_log2_size_y;
1312  pic_width_in_ctbs_y =
1313  (sps->pic_width_in_luma_samples + ctb_size_y - 1) / ctb_size_y;
1314  pic_height_in_ctbs_y =
1315  (sps->pic_height_in_luma_samples + ctb_size_y - 1) / ctb_size_y;
1316  pic_size_in_ctbs_y = pic_width_in_ctbs_y * pic_height_in_ctbs_y;
1317 
1318  if (!current->first_slice_segment_in_pic_flag) {
1319  unsigned int address_size = av_log2(pic_size_in_ctbs_y - 1) + 1;
1320  if (pps->dependent_slice_segments_enabled_flag)
1321  flag(dependent_slice_segment_flag);
1322  else
1323  infer(dependent_slice_segment_flag, 0);
1324  u(address_size, slice_segment_address, 0, pic_size_in_ctbs_y - 1);
1325  } else {
1326  infer(dependent_slice_segment_flag, 0);
1327  }
1328 
1329  if (!current->dependent_slice_segment_flag) {
1330  for (i = 0; i < pps->num_extra_slice_header_bits; i++)
1331  flags(slice_reserved_flag[i], 1, i);
1332 
1333  ue(slice_type, 0, 2);
1334 
1335  if (pps->output_flag_present_flag)
1336  flag(pic_output_flag);
1337 
1338  if (sps->separate_colour_plane_flag)
1339  u(2, colour_plane_id, 0, 2);
1340 
1341  if (current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_W_RADL &&
1342  current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_N_LP) {
1343  const H265RawSTRefPicSet *rps;
1344 
1345  ub(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, slice_pic_order_cnt_lsb);
1346 
1347  flag(short_term_ref_pic_set_sps_flag);
1348  if (!current->short_term_ref_pic_set_sps_flag) {
1349  CHECK(FUNC(st_ref_pic_set)(ctx, rw, &current->short_term_ref_pic_set,
1350  sps->num_short_term_ref_pic_sets, sps));
1351  rps = &current->short_term_ref_pic_set;
1352  } else if (sps->num_short_term_ref_pic_sets > 1) {
1353  unsigned int idx_size = av_log2(sps->num_short_term_ref_pic_sets - 1) + 1;
1354  u(idx_size, short_term_ref_pic_set_idx,
1355  0, sps->num_short_term_ref_pic_sets - 1);
1356  rps = &sps->st_ref_pic_set[current->short_term_ref_pic_set_idx];
1357  } else {
1358  infer(short_term_ref_pic_set_idx, 0);
1359  rps = &sps->st_ref_pic_set[0];
1360  }
1361 
1362  num_pic_total_curr = 0;
1363  for (i = 0; i < rps->num_negative_pics; i++)
1364  if (rps->used_by_curr_pic_s0_flag[i])
1365  ++num_pic_total_curr;
1366  for (i = 0; i < rps->num_positive_pics; i++)
1367  if (rps->used_by_curr_pic_s1_flag[i])
1368  ++num_pic_total_curr;
1369 
1370  if (sps->long_term_ref_pics_present_flag) {
1371  unsigned int idx_size;
1372 
1373  if (sps->num_long_term_ref_pics_sps > 0) {
1374  ue(num_long_term_sps, 0, sps->num_long_term_ref_pics_sps);
1375  idx_size = av_log2(sps->num_long_term_ref_pics_sps - 1) + 1;
1376  } else {
1377  infer(num_long_term_sps, 0);
1378  idx_size = 0;
1379  }
1380  ue(num_long_term_pics, 0, HEVC_MAX_REFS - current->num_long_term_sps);
1381 
1382  for (i = 0; i < current->num_long_term_sps +
1383  current->num_long_term_pics; i++) {
1384  if (i < current->num_long_term_sps) {
1385  if (sps->num_long_term_ref_pics_sps > 1)
1386  us(idx_size, lt_idx_sps[i],
1387  0, sps->num_long_term_ref_pics_sps - 1, 1, i);
1388  if (sps->used_by_curr_pic_lt_sps_flag[current->lt_idx_sps[i]])
1389  ++num_pic_total_curr;
1390  } else {
1391  ubs(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, poc_lsb_lt[i], 1, i);
1392  flags(used_by_curr_pic_lt_flag[i], 1, i);
1393  if (current->used_by_curr_pic_lt_flag[i])
1394  ++num_pic_total_curr;
1395  }
1396  flags(delta_poc_msb_present_flag[i], 1, i);
1397  if (current->delta_poc_msb_present_flag[i])
1398  ues(delta_poc_msb_cycle_lt[i], 0, UINT32_MAX - 1, 1, i);
1399  else
1400  infer(delta_poc_msb_cycle_lt[i], 0);
1401  }
1402  }
1403 
1404  if (sps->sps_temporal_mvp_enabled_flag)
1405  flag(slice_temporal_mvp_enabled_flag);
1406  else
1407  infer(slice_temporal_mvp_enabled_flag, 0);
1408 
1409  if (pps->pps_curr_pic_ref_enabled_flag)
1410  ++num_pic_total_curr;
1411  }
1412 
1413  if (sps->sample_adaptive_offset_enabled_flag) {
1414  flag(slice_sao_luma_flag);
1415  if (!sps->separate_colour_plane_flag && sps->chroma_format_idc != 0)
1416  flag(slice_sao_chroma_flag);
1417  else
1418  infer(slice_sao_chroma_flag, 0);
1419  } else {
1420  infer(slice_sao_luma_flag, 0);
1421  infer(slice_sao_chroma_flag, 0);
1422  }
1423 
1424  if (current->slice_type == HEVC_SLICE_P ||
1425  current->slice_type == HEVC_SLICE_B) {
1426  flag(num_ref_idx_active_override_flag);
1427  if (current->num_ref_idx_active_override_flag) {
1428  ue(num_ref_idx_l0_active_minus1, 0, 14);
1429  if (current->slice_type == HEVC_SLICE_B)
1430  ue(num_ref_idx_l1_active_minus1, 0, 14);
1431  else
1432  infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1);
1433  } else {
1434  infer(num_ref_idx_l0_active_minus1, pps->num_ref_idx_l0_default_active_minus1);
1435  infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1);
1436  }
1437 
1438  if (pps->lists_modification_present_flag && num_pic_total_curr > 1)
1439  CHECK(FUNC(ref_pic_lists_modification)(ctx, rw, current,
1440  num_pic_total_curr));
1441 
1442  if (current->slice_type == HEVC_SLICE_B)
1443  flag(mvd_l1_zero_flag);
1444  if (pps->cabac_init_present_flag)
1445  flag(cabac_init_flag);
1446  else
1447  infer(cabac_init_flag, 0);
1448  if (current->slice_temporal_mvp_enabled_flag) {
1449  if (current->slice_type == HEVC_SLICE_B)
1450  flag(collocated_from_l0_flag);
1451  else
1452  infer(collocated_from_l0_flag, 1);
1453  if (current->collocated_from_l0_flag) {
1454  if (current->num_ref_idx_l0_active_minus1 > 0)
1455  ue(collocated_ref_idx, 0, current->num_ref_idx_l0_active_minus1);
1456  else
1457  infer(collocated_ref_idx, 0);
1458  } else {
1459  if (current->num_ref_idx_l1_active_minus1 > 0)
1460  ue(collocated_ref_idx, 0, current->num_ref_idx_l1_active_minus1);
1461  else
1462  infer(collocated_ref_idx, 0);
1463  }
1464  }
1465 
1466  if ((pps->weighted_pred_flag && current->slice_type == HEVC_SLICE_P) ||
1467  (pps->weighted_bipred_flag && current->slice_type == HEVC_SLICE_B))
1468  CHECK(FUNC(pred_weight_table)(ctx, rw, current));
1469 
1470  ue(five_minus_max_num_merge_cand, 0, 4);
1471  if (sps->motion_vector_resolution_control_idc == 2)
1472  flag(use_integer_mv_flag);
1473  else
1474  infer(use_integer_mv_flag, sps->motion_vector_resolution_control_idc);
1475  }
1476 
1477  se(slice_qp_delta,
1478  - 6 * sps->bit_depth_luma_minus8 - (pps->init_qp_minus26 + 26),
1479  + 51 - (pps->init_qp_minus26 + 26));
1480  if (pps->pps_slice_chroma_qp_offsets_present_flag) {
1481  se(slice_cb_qp_offset, -12, +12);
1482  se(slice_cr_qp_offset, -12, +12);
1483  } else {
1484  infer(slice_cb_qp_offset, 0);
1485  infer(slice_cr_qp_offset, 0);
1486  }
1487  if (pps->pps_slice_act_qp_offsets_present_flag) {
1488  se(slice_act_y_qp_offset,
1489  -12 - (pps->pps_act_y_qp_offset_plus5 - 5),
1490  +12 - (pps->pps_act_y_qp_offset_plus5 - 5));
1491  se(slice_act_cb_qp_offset,
1492  -12 - (pps->pps_act_cb_qp_offset_plus5 - 5),
1493  +12 - (pps->pps_act_cb_qp_offset_plus5 - 5));
1494  se(slice_act_cr_qp_offset,
1495  -12 - (pps->pps_act_cr_qp_offset_plus3 - 3),
1496  +12 - (pps->pps_act_cr_qp_offset_plus3 - 3));
1497  } else {
1498  infer(slice_act_y_qp_offset, 0);
1499  infer(slice_act_cb_qp_offset, 0);
1500  infer(slice_act_cr_qp_offset, 0);
1501  }
1502  if (pps->chroma_qp_offset_list_enabled_flag)
1503  flag(cu_chroma_qp_offset_enabled_flag);
1504  else
1505  infer(cu_chroma_qp_offset_enabled_flag, 0);
1506 
1507  if (pps->deblocking_filter_override_enabled_flag)
1508  flag(deblocking_filter_override_flag);
1509  else
1510  infer(deblocking_filter_override_flag, 0);
1511  if (current->deblocking_filter_override_flag) {
1512  flag(slice_deblocking_filter_disabled_flag);
1513  if (!current->slice_deblocking_filter_disabled_flag) {
1514  se(slice_beta_offset_div2, -6, +6);
1515  se(slice_tc_offset_div2, -6, +6);
1516  } else {
1517  infer(slice_beta_offset_div2, pps->pps_beta_offset_div2);
1518  infer(slice_tc_offset_div2, pps->pps_tc_offset_div2);
1519  }
1520  } else {
1521  infer(slice_deblocking_filter_disabled_flag,
1522  pps->pps_deblocking_filter_disabled_flag);
1523  infer(slice_beta_offset_div2, pps->pps_beta_offset_div2);
1524  infer(slice_tc_offset_div2, pps->pps_tc_offset_div2);
1525  }
1526  if (pps->pps_loop_filter_across_slices_enabled_flag &&
1527  (current->slice_sao_luma_flag || current->slice_sao_chroma_flag ||
1528  !current->slice_deblocking_filter_disabled_flag))
1529  flag(slice_loop_filter_across_slices_enabled_flag);
1530  else
1531  infer(slice_loop_filter_across_slices_enabled_flag,
1532  pps->pps_loop_filter_across_slices_enabled_flag);
1533  }
1534 
1535  if (pps->tiles_enabled_flag || pps->entropy_coding_sync_enabled_flag) {
1536  unsigned int num_entry_point_offsets_limit;
1537  if (!pps->tiles_enabled_flag && pps->entropy_coding_sync_enabled_flag)
1538  num_entry_point_offsets_limit = pic_height_in_ctbs_y - 1;
1539  else if (pps->tiles_enabled_flag && !pps->entropy_coding_sync_enabled_flag)
1540  num_entry_point_offsets_limit =
1541  (pps->num_tile_columns_minus1 + 1) * (pps->num_tile_rows_minus1 + 1);
1542  else
1543  num_entry_point_offsets_limit =
1544  (pps->num_tile_columns_minus1 + 1) * pic_height_in_ctbs_y - 1;
1545  ue(num_entry_point_offsets, 0, num_entry_point_offsets_limit);
1546 
1547  if (current->num_entry_point_offsets > HEVC_MAX_ENTRY_POINT_OFFSETS) {
1548  av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many entry points: "
1549  "%"PRIu16".\n", current->num_entry_point_offsets);
1550  return AVERROR_PATCHWELCOME;
1551  }
1552 
1553  if (current->num_entry_point_offsets > 0) {
1554  ue(offset_len_minus1, 0, 31);
1555  for (i = 0; i < current->num_entry_point_offsets; i++)
1556  ubs(current->offset_len_minus1 + 1, entry_point_offset_minus1[i], 1, i);
1557  }
1558  }
1559 
1560  if (pps->slice_segment_header_extension_present_flag) {
1561  ue(slice_segment_header_extension_length, 0, 256);
1562  for (i = 0; i < current->slice_segment_header_extension_length; i++)
1563  us(8, slice_segment_header_extension_data_byte[i], 0x00, 0xff, 1, i);
1564  }
1565 
1566  CHECK(FUNC(byte_alignment)(ctx, rw));
1567 
1568  return 0;
1569 }
1570 
1571 static int FUNC(sei_buffering_period)(CodedBitstreamContext *ctx, RWContext *rw,
1572  H265RawSEIBufferingPeriod *current,
1573  uint32_t *payload_size,
1574  int *more_data)
1575 {
1576  CodedBitstreamH265Context *h265 = ctx->priv_data;
1577  const H265RawSPS *sps;
1578  const H265RawHRDParameters *hrd;
1579  int err, i, length;
1580 
1581 #ifdef READ
1582  int start_pos, end_pos;
1583  start_pos = get_bits_count(rw);
1584 #endif
1585 
1586  HEADER("Buffering Period");
1587 
1588  ue(bp_seq_parameter_set_id, 0, HEVC_MAX_SPS_COUNT - 1);
1589 
1590  sps = h265->sps[current->bp_seq_parameter_set_id];
1591  if (!sps) {
1592  av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1593  current->bp_seq_parameter_set_id);
1594  return AVERROR_INVALIDDATA;
1595  }
1596  h265->active_sps = sps;
1597 
1598  if (!sps->vui_parameters_present_flag ||
1599  !sps->vui.vui_hrd_parameters_present_flag) {
1600  av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires "
1601  "HRD parameters to be present in SPS.\n");
1602  return AVERROR_INVALIDDATA;
1603  }
1604  hrd = &sps->vui.hrd_parameters;
1605  if (!hrd->nal_hrd_parameters_present_flag &&
1606  !hrd->vcl_hrd_parameters_present_flag) {
1607  av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires "
1608  "NAL or VCL HRD parameters to be present.\n");
1609  return AVERROR_INVALIDDATA;
1610  }
1611 
1612  if (!hrd->sub_pic_hrd_params_present_flag)
1613  flag(irap_cpb_params_present_flag);
1614  else
1615  infer(irap_cpb_params_present_flag, 0);
1616  if (current->irap_cpb_params_present_flag) {
1617  length = hrd->au_cpb_removal_delay_length_minus1 + 1;
1618  ub(length, cpb_delay_offset);
1619  length = hrd->dpb_output_delay_length_minus1 + 1;
1620  ub(length, dpb_delay_offset);
1621  } else {
1622  infer(cpb_delay_offset, 0);
1623  infer(dpb_delay_offset, 0);
1624  }
1625 
1626  flag(concatenation_flag);
1627 
1628  length = hrd->au_cpb_removal_delay_length_minus1 + 1;
1629  ub(length, au_cpb_removal_delay_delta_minus1);
1630 
1631  if (hrd->nal_hrd_parameters_present_flag) {
1632  for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) {
1633  length = hrd->initial_cpb_removal_delay_length_minus1 + 1;
1634 
1635  ubs(length, nal_initial_cpb_removal_delay[i], 1, i);
1636  ubs(length, nal_initial_cpb_removal_offset[i], 1, i);
1637 
1638  if (hrd->sub_pic_hrd_params_present_flag ||
1639  current->irap_cpb_params_present_flag) {
1640  ubs(length, nal_initial_alt_cpb_removal_delay[i], 1, i);
1641  ubs(length, nal_initial_alt_cpb_removal_offset[i], 1, i);
1642  }
1643  }
1644  }
1645  if (hrd->vcl_hrd_parameters_present_flag) {
1646  for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) {
1647  length = hrd->initial_cpb_removal_delay_length_minus1 + 1;
1648 
1649  ubs(length, vcl_initial_cpb_removal_delay[i], 1, i);
1650  ubs(length, vcl_initial_cpb_removal_offset[i], 1, i);
1651 
1652  if (hrd->sub_pic_hrd_params_present_flag ||
1653  current->irap_cpb_params_present_flag) {
1654  ubs(length, vcl_initial_alt_cpb_removal_delay[i], 1, i);
1655  ubs(length, vcl_initial_alt_cpb_removal_offset[i], 1, i);
1656  }
1657  }
1658  }
1659 
1660 #ifdef READ
1661  end_pos = get_bits_count(rw);
1662  if (cbs_h265_payload_extension_present(rw, *payload_size,
1663  end_pos - start_pos))
1664  flag(use_alt_cpb_params_flag);
1665  else
1666  infer(use_alt_cpb_params_flag, 0);
1667 #else
1668  // If unknown extension data exists, then use_alt_cpb_params_flag is
1669  // coded in the bitstream and must be written even if it's 0.
1670  if (current->use_alt_cpb_params_flag || *more_data) {
1671  flag(use_alt_cpb_params_flag);
1672  // Ensure this bit is not the last in the payload by making the
1673  // more_data_in_payload() check evaluate to true, so it may not
1674  // be mistaken as something else by decoders.
1675  *more_data = 1;
1676  }
1677 #endif
1678 
1679  return 0;
1680 }
1681 
1682 static int FUNC(sei_pic_timing)(CodedBitstreamContext *ctx, RWContext *rw,
1683  H265RawSEIPicTiming *current)
1684 {
1685  CodedBitstreamH265Context *h265 = ctx->priv_data;
1686  const H265RawSPS *sps;
1687  const H265RawHRDParameters *hrd;
1688  int err, expected_source_scan_type, i, length;
1689 
1690  HEADER("Picture Timing");
1691 
1692  sps = h265->active_sps;
1693  if (!sps) {
1694  av_log(ctx->log_ctx, AV_LOG_ERROR,
1695  "No active SPS for pic_timing.\n");
1696  return AVERROR_INVALIDDATA;
1697  }
1698 
1699  expected_source_scan_type = 2 -
1700  2 * sps->profile_tier_level.general_interlaced_source_flag -
1701  sps->profile_tier_level.general_progressive_source_flag;
1702 
1703  if (sps->vui.frame_field_info_present_flag) {
1704  u(4, pic_struct, 0, 12);
1705  u(2, source_scan_type,
1706  expected_source_scan_type >= 0 ? expected_source_scan_type : 0,
1707  expected_source_scan_type >= 0 ? expected_source_scan_type : 2);
1708  flag(duplicate_flag);
1709  } else {
1710  infer(pic_struct, 0);
1711  infer(source_scan_type,
1712  expected_source_scan_type >= 0 ? expected_source_scan_type : 2);
1713  infer(duplicate_flag, 0);
1714  }
1715 
1716  if (sps->vui_parameters_present_flag &&
1717  sps->vui.vui_hrd_parameters_present_flag)
1718  hrd = &sps->vui.hrd_parameters;
1719  else
1720  hrd = NULL;
1721  if (hrd && (hrd->nal_hrd_parameters_present_flag ||
1722  hrd->vcl_hrd_parameters_present_flag)) {
1723  length = hrd->au_cpb_removal_delay_length_minus1 + 1;
1724  ub(length, au_cpb_removal_delay_minus1);
1725 
1726  length = hrd->dpb_output_delay_length_minus1 + 1;
1727  ub(length, pic_dpb_output_delay);
1728 
1729  if (hrd->sub_pic_hrd_params_present_flag) {
1730  length = hrd->dpb_output_delay_du_length_minus1 + 1;
1731  ub(length, pic_dpb_output_du_delay);
1732  }
1733 
1734  if (hrd->sub_pic_hrd_params_present_flag &&
1735  hrd->sub_pic_cpb_params_in_pic_timing_sei_flag) {
1736  // Each decoding unit must contain at least one slice segment.
1737  ue(num_decoding_units_minus1, 0, HEVC_MAX_SLICE_SEGMENTS);
1738  flag(du_common_cpb_removal_delay_flag);
1739 
1740  length = hrd->du_cpb_removal_delay_increment_length_minus1 + 1;
1741  if (current->du_common_cpb_removal_delay_flag)
1742  ub(length, du_common_cpb_removal_delay_increment_minus1);
1743 
1744  for (i = 0; i <= current->num_decoding_units_minus1; i++) {
1745  ues(num_nalus_in_du_minus1[i],
1746  0, HEVC_MAX_SLICE_SEGMENTS, 1, i);
1747  if (!current->du_common_cpb_removal_delay_flag &&
1748  i < current->num_decoding_units_minus1)
1749  ubs(length, du_cpb_removal_delay_increment_minus1[i], 1, i);
1750  }
1751  }
1752  }
1753 
1754  return 0;
1755 }
1756 
1757 static int FUNC(sei_pan_scan_rect)(CodedBitstreamContext *ctx, RWContext *rw,
1758  H265RawSEIPanScanRect *current)
1759 {
1760  int err, i;
1761 
1762  HEADER("Pan-Scan Rectangle");
1763 
1764  ue(pan_scan_rect_id, 0, UINT32_MAX - 1);
1765  flag(pan_scan_rect_cancel_flag);
1766 
1767  if (!current->pan_scan_rect_cancel_flag) {
1768  ue(pan_scan_cnt_minus1, 0, 2);
1769 
1770  for (i = 0; i <= current->pan_scan_cnt_minus1; i++) {
1771  ses(pan_scan_rect_left_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1772  ses(pan_scan_rect_right_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1773  ses(pan_scan_rect_top_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1774  ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1775  }
1776 
1777  flag(pan_scan_rect_persistence_flag);
1778  }
1779 
1780  return 0;
1781 }
1782 
1783 static int FUNC(sei_user_data_registered)(CodedBitstreamContext *ctx, RWContext *rw,
1784  H265RawSEIUserDataRegistered *current,
1785  uint32_t *payload_size)
1786 {
1787  int err, i, j;
1788 
1789  HEADER("User Data Registered ITU-T T.35");
1790 
1791  u(8, itu_t_t35_country_code, 0x00, 0xff);
1792  if (current->itu_t_t35_country_code != 0xff)
1793  i = 1;
1794  else {
1795  u(8, itu_t_t35_country_code_extension_byte, 0x00, 0xff);
1796  i = 2;
1797  }
1798 
1799 #ifdef READ
1800  if (*payload_size < i) {
1801  av_log(ctx->log_ctx, AV_LOG_ERROR,
1802  "Invalid SEI user data registered payload.\n");
1803  return AVERROR_INVALIDDATA;
1804  }
1805  current->data_length = *payload_size - i;
1806 #else
1807  *payload_size = i + current->data_length;
1808 #endif
1809 
1810  allocate(current->data, current->data_length);
1811  for (j = 0; j < current->data_length; j++)
1812  xu(8, itu_t_t35_payload_byte[i], current->data[j], 0x00, 0xff, 1, i + j);
1813 
1814  return 0;
1815 }
1816 
1817 static int FUNC(sei_user_data_unregistered)(CodedBitstreamContext *ctx, RWContext *rw,
1818  H265RawSEIUserDataUnregistered *current,
1819  uint32_t *payload_size)
1820 {
1821  int err, i;
1822 
1823  HEADER("User Data Unregistered");
1824 
1825 #ifdef READ
1826  if (*payload_size < 16) {
1827  av_log(ctx->log_ctx, AV_LOG_ERROR,
1828  "Invalid SEI user data unregistered payload.\n");
1829  return AVERROR_INVALIDDATA;
1830  }
1831  current->data_length = *payload_size - 16;
1832 #else
1833  *payload_size = 16 + current->data_length;
1834 #endif
1835 
1836  for (i = 0; i < 16; i++)
1837  us(8, uuid_iso_iec_11578[i], 0x00, 0xff, 1, i);
1838 
1839  allocate(current->data, current->data_length);
1840 
1841  for (i = 0; i < current->data_length; i++)
1842  xu(8, user_data_payload_byte[i], current->data[i], 0x00, 0xff, 1, i);
1843 
1844  return 0;
1845 }
1846 
1847 static int FUNC(sei_recovery_point)(CodedBitstreamContext *ctx, RWContext *rw,
1848  H265RawSEIRecoveryPoint *current)
1849 {
1850  int err;
1851 
1852  HEADER("Recovery Point");
1853 
1854  se(recovery_poc_cnt, -32768, 32767);
1855 
1856  flag(exact_match_flag);
1857  flag(broken_link_flag);
1858 
1859  return 0;
1860 }
1861 
1862 static int FUNC(sei_display_orientation)(CodedBitstreamContext *ctx, RWContext *rw,
1863  H265RawSEIDisplayOrientation *current)
1864 {
1865  int err;
1866 
1867  HEADER("Display Orientation");
1868 
1869  flag(display_orientation_cancel_flag);
1870  if (!current->display_orientation_cancel_flag) {
1871  flag(hor_flip);
1872  flag(ver_flip);
1873  ub(16, anticlockwise_rotation);
1874  flag(display_orientation_persistence_flag);
1875  }
1876 
1877  return 0;
1878 }
1879 
1880 static int FUNC(sei_active_parameter_sets)(CodedBitstreamContext *ctx, RWContext *rw,
1881  H265RawSEIActiveParameterSets *current)
1882 {
1883  CodedBitstreamH265Context *h265 = ctx->priv_data;
1884  const H265RawVPS *vps;
1885  int err, i;
1886 
1887  HEADER("Active Parameter Sets");
1888 
1889  u(4, active_video_parameter_set_id, 0, HEVC_MAX_VPS_COUNT);
1890  vps = h265->vps[current->active_video_parameter_set_id];
1891  if (!vps) {
1892  av_log(ctx->log_ctx, AV_LOG_ERROR, "VPS id %d not available for active "
1893  "parameter sets.\n", current->active_video_parameter_set_id);
1894  return AVERROR_INVALIDDATA;
1895  }
1896  h265->active_vps = vps;
1897 
1898  flag(self_contained_cvs_flag);
1899  flag(no_parameter_set_update_flag);
1900 
1901  ue(num_sps_ids_minus1, 0, HEVC_MAX_SPS_COUNT - 1);
1902  for (i = 0; i <= current->num_sps_ids_minus1; i++)
1903  ues(active_seq_parameter_set_id[i], 0, HEVC_MAX_SPS_COUNT - 1, 1, i);
1904 
1905  for (i = vps->vps_base_layer_internal_flag;
1906  i <= FFMIN(62, vps->vps_max_layers_minus1); i++) {
1907  ues(layer_sps_idx[i], 0, current->num_sps_ids_minus1, 1, i);
1908 
1909  if (i == 0)
1910  h265->active_sps = h265->sps[current->active_seq_parameter_set_id[current->layer_sps_idx[0]]];
1911  }
1912 
1913  return 0;
1914 }
1915 
1916 static int FUNC(sei_decoded_picture_hash)(CodedBitstreamContext *ctx, RWContext *rw,
1917  H265RawSEIDecodedPictureHash *current)
1918 {
1919  CodedBitstreamH265Context *h265 = ctx->priv_data;
1920  const H265RawSPS *sps = h265->active_sps;
1921  int err, c, i;
1922 
1923  HEADER("Decoded Picture Hash");
1924 
1925  if (!sps) {
1926  av_log(ctx->log_ctx, AV_LOG_ERROR,
1927  "No active SPS for decoded picture hash.\n");
1928  return AVERROR_INVALIDDATA;
1929  }
1930 
1931  u(8, hash_type, 0, 2);
1932 
1933  for (c = 0; c < (sps->chroma_format_idc == 0 ? 1 : 3); c++) {
1934  if (current->hash_type == 0) {
1935  for (i = 0; i < 16; i++)
1936  us(8, picture_md5[c][i], 0x00, 0xff, 2, c, i);
1937  } else if (current->hash_type == 1) {
1938  us(16, picture_crc[c], 0x0000, 0xffff, 1, c);
1939  } else if (current->hash_type == 2) {
1940  us(32, picture_checksum[c], 0x00000000, 0xffffffff, 1, c);
1941  }
1942  }
1943 
1944  return 0;
1945 }
1946 
1947 static int FUNC(sei_time_code)(CodedBitstreamContext *ctx, RWContext *rw,
1948  H265RawSEITimeCode *current)
1949 {
1950  int err, i;
1951 
1952  HEADER("Time Code");
1953 
1954  u(2, num_clock_ts, 1, 3);
1955 
1956  for (i = 0; i < current->num_clock_ts; i++) {
1957  flags(clock_timestamp_flag[i], 1, i);
1958 
1959  if (current->clock_timestamp_flag[i]) {
1960  flags(units_field_based_flag[i], 1, i);
1961  us(5, counting_type[i], 0, 6, 1, i);
1962  flags(full_timestamp_flag[i], 1, i);
1963  flags(discontinuity_flag[i], 1, i);
1964  flags(cnt_dropped_flag[i], 1, i);
1965 
1966  ubs(9, n_frames[i], 1, i);
1967 
1968  if (current->full_timestamp_flag[i]) {
1969  us(6, seconds_value[i], 0, 59, 1, i);
1970  us(6, minutes_value[i], 0, 59, 1, i);
1971  us(5, hours_value[i], 0, 23, 1, i);
1972  } else {
1973  flags(seconds_flag[i], 1, i);
1974  if (current->seconds_flag[i]) {
1975  us(6, seconds_value[i], 0, 59, 1, i);
1976  flags(minutes_flag[i], 1, i);
1977  if (current->minutes_flag[i]) {
1978  us(6, minutes_value[i], 0, 59, 1, i);
1979  flags(hours_flag[i], 1, i);
1980  if (current->hours_flag[i])
1981  us(5, hours_value[i], 0, 23, 1, i);
1982  }
1983  }
1984  }
1985 
1986  ubs(5, time_offset_length[i], 1, i);
1987  if (current->time_offset_length[i] > 0)
1988  ibs(current->time_offset_length[i], time_offset_value[i], 1, i);
1989  else
1990  infer(time_offset_value[i], 0);
1991  }
1992  }
1993 
1994  return 0;
1995 }
1996 
1997 static int FUNC(sei_mastering_display)(CodedBitstreamContext *ctx, RWContext *rw,
1998  H265RawSEIMasteringDisplayColourVolume *current)
1999 {
2000  int err, c;
2001 
2002  HEADER("Mastering Display Colour Volume");
2003 
2004  for (c = 0; c < 3; c++) {
2005  us(16, display_primaries_x[c], 0, 50000, 1, c);
2006  us(16, display_primaries_y[c], 0, 50000, 1, c);
2007  }
2008 
2009  u(16, white_point_x, 0, 50000);
2010  u(16, white_point_y, 0, 50000);
2011 
2012  u(32, max_display_mastering_luminance,
2013  1, MAX_UINT_BITS(32));
2014  u(32, min_display_mastering_luminance,
2015  0, current->max_display_mastering_luminance - 1);
2016 
2017  return 0;
2018 }
2019 
2020 static int FUNC(sei_content_light_level)(CodedBitstreamContext *ctx, RWContext *rw,
2021  H265RawSEIContentLightLevelInfo *current)
2022 {
2023  int err;
2024 
2025  HEADER("Content Light Level");
2026 
2027  ub(16, max_content_light_level);
2028  ub(16, max_pic_average_light_level);
2029 
2030  return 0;
2031 }
2032 
2033 static int FUNC(sei_alternative_transfer_characteristics)(CodedBitstreamContext *ctx,
2034  RWContext *rw,
2035  H265RawSEIAlternativeTransferCharacteristics *current)
2036 {
2037  int err;
2038 
2039  HEADER("Alternative Transfer Characteristics");
2040 
2041  ub(8, preferred_transfer_characteristics);
2042 
2043  return 0;
2044 }
2045 
2046 static int FUNC(sei_alpha_channel_info)(CodedBitstreamContext *ctx,
2047  RWContext *rw,
2048  H265RawSEIAlphaChannelInfo *current)
2049 {
2050  int err, length;
2051 
2052  HEADER("Alpha Channel Information");
2053 
2054  flag(alpha_channel_cancel_flag);
2055  if (!current->alpha_channel_cancel_flag) {
2056  ub(3, alpha_channel_use_idc);
2057  ub(3, alpha_channel_bit_depth_minus8);
2058  length = current->alpha_channel_bit_depth_minus8 + 9;
2059  ub(length, alpha_transparent_value);
2060  ub(length, alpha_opaque_value);
2061  flag(alpha_channel_incr_flag);
2062  flag(alpha_channel_clip_flag);
2063  if (current->alpha_channel_clip_flag)
2064  flag(alpha_channel_clip_type_flag);
2065  } else {
2066  infer(alpha_channel_use_idc, 2);
2067  infer(alpha_channel_incr_flag, 0);
2068  infer(alpha_channel_clip_flag, 0);
2069  }
2070 
2071  return 0;
2072 }
2073 
2074 static int FUNC(payload_extension)(CodedBitstreamContext *ctx, RWContext *rw,
2075  H265RawExtensionData *current, uint32_t payload_size,
2076  int cur_pos)
2077 {
2078  int err;
2079  size_t byte_length, k;
2080 
2081 #ifdef READ
2082  GetBitContext tmp;
2083  int bits_left, payload_zero_bits;
2084 
2085  if (!cbs_h265_payload_extension_present(rw, payload_size, cur_pos))
2086  return 0;
2087 
2088  bits_left = 8 * payload_size - cur_pos;
2089  tmp = *rw;
2090  if (bits_left > 8)
2091  skip_bits_long(&tmp, bits_left - 8);
2092  payload_zero_bits = get_bits(&tmp, FFMIN(bits_left, 8));
2093  if (!payload_zero_bits)
2094  return AVERROR_INVALIDDATA;
2095  payload_zero_bits = ff_ctz(payload_zero_bits);
2096  current->bit_length = bits_left - payload_zero_bits - 1;
2097  allocate(current->data, (current->bit_length + 7) / 8);
2098 #endif
2099 
2100  byte_length = (current->bit_length + 7) / 8;
2101  for (k = 0; k < byte_length; k++) {
2102  int length = FFMIN(current->bit_length - k * 8, 8);
2103  xu(length, reserved_payload_extension_data, current->data[k],
2104  0, MAX_UINT_BITS(length), 0);
2105  }
2106 
2107  return 0;
2108 }
2109 
2110 static int FUNC(sei_payload)(CodedBitstreamContext *ctx, RWContext *rw,
2111  H265RawSEIPayload *current, int prefix)
2112 {
2113  int err, i;
2114  int start_position, current_position;
2115  int more_data = !!current->extension_data.bit_length;
2116 
2117 #ifdef READ
2118  start_position = get_bits_count(rw);
2119 #else
2120  start_position = put_bits_count(rw);
2121 #endif
2122 
2123  switch (current->payload_type) {
2124 #define SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid) do { \
2125  if (prefix && !prefix_valid) { \
2126  av_log(ctx->log_ctx, AV_LOG_ERROR, "SEI type %s invalid " \
2127  "as prefix SEI!\n", #name); \
2128  return AVERROR_INVALIDDATA; \
2129  } \
2130  if (!prefix && !suffix_valid) { \
2131  av_log(ctx->log_ctx, AV_LOG_ERROR, "SEI type %s invalid " \
2132  "as suffix SEI!\n", #name); \
2133  return AVERROR_INVALIDDATA; \
2134  } \
2135  } while (0)
2136 #define SEI_TYPE_N(type, prefix_valid, suffix_valid, name) \
2137  case HEVC_SEI_TYPE_ ## type: \
2138  SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
2139  CHECK(FUNC(sei_ ## name)(ctx, rw, &current->payload.name)); \
2140  break
2141 #define SEI_TYPE_S(type, prefix_valid, suffix_valid, name) \
2142  case HEVC_SEI_TYPE_ ## type: \
2143  SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
2144  CHECK(FUNC(sei_ ## name)(ctx, rw, &current->payload.name, \
2145  &current->payload_size)); \
2146  break
2147 #define SEI_TYPE_E(type, prefix_valid, suffix_valid, name) \
2148  case HEVC_SEI_TYPE_ ## type: \
2149  SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
2150  CHECK(FUNC(sei_ ## name)(ctx, rw, &current->payload.name, \
2151  &current->payload_size, \
2152  &more_data)); \
2153  break
2154 
2155  SEI_TYPE_E(BUFFERING_PERIOD, 1, 0, buffering_period);
2156  SEI_TYPE_N(PICTURE_TIMING, 1, 0, pic_timing);
2157  SEI_TYPE_N(PAN_SCAN_RECT, 1, 0, pan_scan_rect);
2158  SEI_TYPE_S(USER_DATA_REGISTERED_ITU_T_T35,
2159  1, 1, user_data_registered);
2160  SEI_TYPE_S(USER_DATA_UNREGISTERED, 1, 1, user_data_unregistered);
2161  SEI_TYPE_N(RECOVERY_POINT, 1, 0, recovery_point);
2162  SEI_TYPE_N(DISPLAY_ORIENTATION, 1, 0, display_orientation);
2163  SEI_TYPE_N(ACTIVE_PARAMETER_SETS, 1, 0, active_parameter_sets);
2164  SEI_TYPE_N(DECODED_PICTURE_HASH, 0, 1, decoded_picture_hash);
2165  SEI_TYPE_N(TIME_CODE, 1, 0, time_code);
2166  SEI_TYPE_N(MASTERING_DISPLAY_INFO, 1, 0, mastering_display);
2167  SEI_TYPE_N(CONTENT_LIGHT_LEVEL_INFO, 1, 0, content_light_level);
2168  SEI_TYPE_N(ALTERNATIVE_TRANSFER_CHARACTERISTICS,
2169  1, 0, alternative_transfer_characteristics);
2170  SEI_TYPE_N(ALPHA_CHANNEL_INFO, 1, 0, alpha_channel_info);
2171 
2172 #undef SEI_TYPE
2173  default:
2174  {
2175 #ifdef READ
2176  current->payload.other.data_length = current->payload_size;
2177 #endif
2178  allocate(current->payload.other.data, current->payload.other.data_length);
2179 
2180  for (i = 0; i < current->payload_size; i++)
2181  xu(8, payload_byte[i], current->payload.other.data[i], 0, 255,
2182  1, i);
2183  }
2184  }
2185 
2186  // more_data_in_payload()
2187 #ifdef READ
2188  current_position = get_bits_count(rw) - start_position;
2189  if (current_position < 8 * current->payload_size) {
2190 #else
2191  current_position = put_bits_count(rw) - start_position;
2192  if (byte_alignment(rw) || more_data) {
2193 #endif
2194  CHECK(FUNC(payload_extension)(ctx, rw, &current->extension_data,
2195  current->payload_size, current_position));
2196  fixed(1, bit_equal_to_one, 1);
2197  while (byte_alignment(rw))
2198  fixed(1, bit_equal_to_zero, 0);
2199  }
2200 
2201 #ifdef WRITE
2202  current->payload_size = (put_bits_count(rw) - start_position) >> 3;
2203 #endif
2204 
2205  return 0;
2206 }
2207 
2208 static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
2209  H265RawSEI *current, int prefix)
2210 {
2211  int err, k;
2212 
2213  if (prefix)
2214  HEADER("Prefix Supplemental Enhancement Information");
2215  else
2216  HEADER("Suffix Supplemental Enhancement Information");
2217 
2218  CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
2219  prefix ? HEVC_NAL_SEI_PREFIX
2220  : HEVC_NAL_SEI_SUFFIX));
2221 
2222 #ifdef READ
2223  for (k = 0; k < H265_MAX_SEI_PAYLOADS; k++) {
2224  uint32_t payload_type = 0;
2225  uint32_t payload_size = 0;
2226  uint32_t tmp;
2227 
2228  while (show_bits(rw, 8) == 0xff) {
2229  fixed(8, ff_byte, 0xff);
2230  payload_type += 255;
2231  }
2232  xu(8, last_payload_type_byte, tmp, 0, 254, 0);
2233  payload_type += tmp;
2234 
2235  while (show_bits(rw, 8) == 0xff) {
2236  fixed(8, ff_byte, 0xff);
2237  payload_size += 255;
2238  }
2239  xu(8, last_payload_size_byte, tmp, 0, 254, 0);
2240  payload_size += tmp;
2241 
2242  current->payload[k].payload_type = payload_type;
2243  current->payload[k].payload_size = payload_size;
2244 
2245  current->payload_count++;
2246  CHECK(FUNC(sei_payload)(ctx, rw, &current->payload[k], prefix));
2247 
2248  if (!cbs_h2645_read_more_rbsp_data(rw))
2249  break;
2250  }
2251  if (k >= H265_MAX_SEI_PAYLOADS) {
2252  av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many payloads in "
2253  "SEI message: found %d.\n", k);
2254  return AVERROR_INVALIDDATA;
2255  }
2256 #else
2257  for (k = 0; k < current->payload_count; k++) {
2258  PutBitContext start_state;
2259  uint32_t tmp;
2260  int need_size, i;
2261 
2262  // Somewhat clumsy: we write the payload twice when
2263  // we don't know the size in advance. This will mess
2264  // with trace output, but is otherwise harmless.
2265  start_state = *rw;
2266  need_size = !current->payload[k].payload_size;
2267  for (i = 0; i < 1 + need_size; i++) {
2268  *rw = start_state;
2269 
2270  tmp = current->payload[k].payload_type;
2271  while (tmp >= 255) {
2272  fixed(8, ff_byte, 0xff);
2273  tmp -= 255;
2274  }
2275  xu(8, last_payload_type_byte, tmp, 0, 254, 0);
2276 
2277  tmp = current->payload[k].payload_size;
2278  while (tmp >= 255) {
2279  fixed(8, ff_byte, 0xff);
2280  tmp -= 255;
2281  }
2282  xu(8, last_payload_size_byte, tmp, 0, 254, 0);
2283 
2284  CHECK(FUNC(sei_payload)(ctx, rw, &current->payload[k], prefix));
2285  }
2286  }
2287 #endif
2288 
2289  CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
2290 
2291  return 0;
2292 }
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Definition: cbs_h2645.c:422
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Definition: coverity.c:32
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Definition: intmath.h:106
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Invalid data found when processing input.
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Definition: common.h:94
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Definition: common.h:96
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AVFormatContext * ctx
Definition: movenc.c:48
pps
static int FUNC() pps(CodedBitstreamContext *ctx, RWContext *rw, H265RawPPS *current)
Definition: cbs_h265_syntax_template.c:1005
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static unsigned int show_bits(GetBitContext *s, int n)
Show 1-25 bits.
Definition: get_bits.h:446
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static int FUNC() sei_active_parameter_sets(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIActiveParameterSets *current)
Definition: cbs_h265_syntax_template.c:1880
H265RawSPS::pic_width_in_luma_samples
uint16_t pic_width_in_luma_samples
Definition: cbs_h265.h:267
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uint8_t lists_modification_present_flag
Definition: cbs_h265.h:404
H265RawSPS::log2_min_luma_coding_block_size_minus3
uint8_t log2_min_luma_coding_block_size_minus3
Definition: cbs_h265.h:286
H265RawHRDParameters::vcl_hrd_parameters_present_flag
uint8_t vcl_hrd_parameters_present_flag
Definition: cbs_h265.h:110
H265RawPPS::pps_seq_parameter_set_id
uint8_t pps_seq_parameter_set_id
Definition: cbs_h265.h:358
H265RawPPS::cabac_init_present_flag
uint8_t cabac_init_present_flag
Definition: cbs_h265.h:364
SEI_TYPE_N
#define SEI_TYPE_N(type, prefix_valid, suffix_valid, name)
comp
static void comp(unsigned char *dst, ptrdiff_t dst_stride, unsigned char *src, ptrdiff_t src_stride, int add)
Definition: eamad.c:83
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition: error.h:62
aud
static int FUNC() aud(CodedBitstreamContext *ctx, RWContext *rw, H265RawAUD *current)
Definition: cbs_h265_syntax_template.c:1128
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uint8_t used_by_curr_pic_s1_flag[HEVC_MAX_REFS]
Definition: cbs_h265.h:242
H265RawPPS::num_extra_slice_header_bits
uint8_t num_extra_slice_header_bits
Definition: cbs_h265.h:362
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const H265RawSPS * active_sps
Definition: cbs_h265.h:745
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static int FUNC() scaling_list_data(CodedBitstreamContext *ctx, RWContext *rw, H265RawScalingList *current)
Definition: cbs_h265_syntax_template.c:668
H265RawPPS::entropy_coding_sync_enabled_flag
uint8_t entropy_coding_sync_enabled_flag
Definition: cbs_h265.h:385
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uint8_t output_flag_present_flag
Definition: cbs_h265.h:361
H265RawPPS::weighted_bipred_flag
uint8_t weighted_bipred_flag
Definition: cbs_h265.h:381
H265RawPPS::dependent_slice_segments_enabled_flag
uint8_t dependent_slice_segments_enabled_flag
Definition: cbs_h265.h:360
H265RawSPS::sps_temporal_mvp_enabled_flag
uint8_t sps_temporal_mvp_enabled_flag
Definition: cbs_h265.h:315
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#define ub(width, name)
Definition: cbs_h2645.c:264
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#define xu(width, name, var, range_min, range_max, subs,...)
Definition: cbs_h2645.c:384
H265RawPPS::pps_loop_filter_across_slices_enabled_flag
uint8_t pps_loop_filter_across_slices_enabled_flag
Definition: cbs_h265.h:394
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uint8_t weighted_pred_flag
Definition: cbs_h265.h:380
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static void skip_bits(GetBitContext *s, int n)
Definition: get_bits.h:467
CodedBitstreamContext
Context structure for coded bitstream operations.
Definition: cbs.h:168
CodedBitstreamH265Context::active_vps
const H265RawVPS * active_vps
Definition: cbs_h265.h:744
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static int FUNC() profile_tier_level(CodedBitstreamContext *ctx, RWContext *rw, H265RawProfileTierLevel *current, int profile_present_flag, int max_num_sub_layers_minus1)
Definition: cbs_h265_syntax_template.c:88
H265RawSPS::chroma_format_idc
uint8_t chroma_format_idc
Definition: cbs_h265.h:264
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static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
Definition: cbs_h2645.c:335
CodedBitstreamH265Context::active_pps
const H265RawPPS * active_pps
Definition: cbs_h265.h:746
H265RawVPS::vps_base_layer_internal_flag
uint8_t vps_base_layer_internal_flag
Definition: cbs_h265.h:196
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static int FUNC() vps(CodedBitstreamContext *ctx, RWContext *rw, H265RawVPS *current)
Definition: cbs_h265_syntax_template.c:420
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:564
H265RawSTRefPicSet::num_positive_pics
uint8_t num_positive_pics
Definition: cbs_h265.h:238
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static int FUNC() sei_recovery_point(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIRecoveryPoint *current)
Definition: cbs_h265_syntax_template.c:1847
nal_unit_header
static int FUNC() nal_unit_header(CodedBitstreamContext *ctx, RWContext *rw, H265RawNALUnitHeader *current, int expected_nal_unit_type)
Definition: cbs_h265_syntax_template.c:30
H265RawProfileTierLevel::general_progressive_source_flag
uint8_t general_progressive_source_flag
Definition: cbs_h265.h:50
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static int FUNC() sei_buffering_period(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIBufferingPeriod *current, uint32_t *payload_size, int *more_data)
Definition: cbs_h265_syntax_template.c:1571
ref
static int ref[MAX_W *MAX_W]
Definition: jpeg2000dwt.c:107
flag
#define flag(name)
Definition: cbs_av1.c:556
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#define bit(string, value)
Definition: cbs_mpeg2.c:58
H265RawPPS::num_tile_rows_minus1
uint8_t num_tile_rows_minus1
Definition: cbs_h265.h:388
sei_pic_timing
static int FUNC() sei_pic_timing(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIPicTiming *current)
Definition: cbs_h265_syntax_template.c:1682
H265RawPPS::pps_act_cb_qp_offset_plus5
int8_t pps_act_cb_qp_offset_plus5
Definition: cbs_h265.h:434
ubs
#define ubs(width, name, subs,...)
Definition: cbs_h2645.c:278
H265RawHRDParameters::sub_pic_hrd_params_present_flag
uint8_t sub_pic_hrd_params_present_flag
Definition: cbs_h265.h:112
H265RawPPS::num_tile_columns_minus1
uint8_t num_tile_columns_minus1
Definition: cbs_h265.h:387
H265RawSPS::log2_diff_max_min_luma_coding_block_size
uint8_t log2_diff_max_min_luma_coding_block_size
Definition: cbs_h265.h:287
H265RawHRDParameters::sub_pic_cpb_params_in_pic_timing_sei_flag
uint8_t sub_pic_cpb_params_in_pic_timing_sei_flag
Definition: cbs_h265.h:115
H265RawHRDParameters::cpb_cnt_minus1
uint8_t cpb_cnt_minus1[HEVC_MAX_SUB_LAYERS]
Definition: cbs_h265.h:130
H265RawHRDParameters::dpb_output_delay_du_length_minus1
uint8_t dpb_output_delay_du_length_minus1
Definition: cbs_h265.h:116
H265RawSPS::used_by_curr_pic_lt_sps_flag
uint8_t used_by_curr_pic_lt_sps_flag[HEVC_MAX_LONG_TERM_REF_PICS]
Definition: cbs_h265.h:313
AVFormatContext::priv_data
void * priv_data
Format private data.
Definition: avformat.h:1379
H265RawSPS::num_short_term_ref_pic_sets
uint8_t num_short_term_ref_pic_sets
Definition: cbs_h265.h:307
SEI_TYPE_E
#define SEI_TYPE_E(type, prefix_valid, suffix_valid, name)
sps
static int FUNC() sps(CodedBitstreamContext *ctx, RWContext *rw, H265RawSPS *current)
Definition: cbs_h265_syntax_template.c:747
H265RawVPS::vps_temporal_id_nesting_flag
uint8_t vps_temporal_id_nesting_flag
Definition: cbs_h265.h:200
sei_alpha_channel_info
static int FUNC() sei_alpha_channel_info(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIAlphaChannelInfo *current)
Definition: cbs_h265_syntax_template.c:2046
ibs
#define ibs(width, name, subs,...)
Definition: cbs_h2645.c:286
H265RawPPS::pps_tc_offset_div2
int8_t pps_tc_offset_div2
Definition: cbs_h265.h:399
sei_user_data_unregistered
static int FUNC() sei_user_data_unregistered(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIUserDataUnregistered *current, uint32_t *payload_size)
Definition: cbs_h265_syntax_template.c:1817
sps_range_extension
static int FUNC() sps_range_extension(CodedBitstreamContext *ctx, RWContext *rw, H265RawSPS *current)
Definition: cbs_h265_syntax_template.c:699
H265RawPPS::init_qp_minus26
int8_t init_qp_minus26
Definition: cbs_h265.h:369
H265RawPPS::pps_curr_pic_ref_enabled_flag
uint8_t pps_curr_pic_ref_enabled_flag
Definition: cbs_h265.h:430
H265RawPPS::slice_segment_header_extension_present_flag
uint8_t slice_segment_header_extension_present_flag
Definition: cbs_h265.h:407
infer
#define infer(name, value)
Definition: cbs_av1.c:712
CodedBitstreamH265Context::vps
H265RawVPS * vps[HEVC_MAX_VPS_COUNT]
Definition: cbs_h265.h:737
H265RawSPS::separate_colour_plane_flag
uint8_t separate_colour_plane_flag
Definition: cbs_h265.h:265
H265RawHRDParameters::initial_cpb_removal_delay_length_minus1
uint8_t initial_cpb_removal_delay_length_minus1
Definition: cbs_h265.h:122
rbsp_trailing_bits
static int FUNC() rbsp_trailing_bits(CodedBitstreamContext *ctx, RWContext *rw)
Definition: cbs_h265_syntax_template.c:19
H265RawSPS::long_term_ref_pics_present_flag
uint8_t long_term_ref_pics_present_flag
Definition: cbs_h265.h:310
sei_payload
static int FUNC() sei_payload(CodedBitstreamContext *ctx, RWContext *rw, H265RawSEIPayload *current, int prefix)
Definition: cbs_h265_syntax_template.c:2110
ues
#define ues(name, range_min, range_max, subs,...)
Definition: cbs_h2645.c:282
H265RawPPS::pps_act_cr_qp_offset_plus3
int8_t pps_act_cr_qp_offset_plus3
Definition: cbs_h265.h:435
H265RawPPS::num_ref_idx_l1_default_active_minus1
uint8_t num_ref_idx_l1_default_active_minus1
Definition: cbs_h265.h:367
tmp
static uint8_t tmp[11]
Definition: aes_ctr.c:26
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