2 * This file is part of FFmpeg.
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.
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.
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
19 static int FUNC(rbsp_trailing_bits)(CodedBitstreamContext *ctx, RWContext *rw)
23 fixed(1, rbsp_stop_one_bit, 1);
24 while (byte_alignment(rw) != 0)
25 fixed(1, rbsp_alignment_zero_bit, 0);
30 static int FUNC(nal_unit_header)(CodedBitstreamContext *ctx, RWContext *rw,
31 H265RawNALUnitHeader *current,
32 int expected_nal_unit_type)
36 u(1, forbidden_zero_bit, 0, 0);
38 if (expected_nal_unit_type >= 0)
39 u(6, nal_unit_type, expected_nal_unit_type,
40 expected_nal_unit_type);
42 u(6, nal_unit_type, 0, 63);
44 u(6, nuh_layer_id, 0, 62);
45 u(3, nuh_temporal_id_plus1, 1, 7);
50 static int FUNC(byte_alignment)(CodedBitstreamContext *ctx, RWContext *rw)
54 fixed(1, alignment_bit_equal_to_one, 1);
55 while (byte_alignment(rw) != 0)
56 fixed(1, alignment_bit_equal_to_zero, 0);
61 static int FUNC(extension_data)(CodedBitstreamContext *ctx, RWContext *rw,
62 H265RawPSExtensionData *current)
70 for (k = 0; cbs_h2645_read_more_rbsp_data(rw); k++)
72 current->bit_length = k;
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);
82 for (k = 0; k < current->bit_length; k++)
83 xu(1, extension_data, current->data[k / 8] >> (7 - k % 8), 0, 1, 0);
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)
95 if (profile_present_flag) {
96 u(2, general_profile_space, 0, 0);
97 flag(general_tier_flag);
98 u(5, general_profile_idc, 0, 31);
100 for (j = 0; j < 32; j++)
101 flags(general_profile_compatibility_flag[j], 1, j);
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);
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);
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);
130 fixed(24, general_reserved_zero_34bits, 0);
131 fixed(10, general_reserved_zero_34bits, 0);
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);
139 fixed(24, general_reserved_zero_43bits, 0);
140 fixed(19, general_reserved_zero_43bits, 0);
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);
148 fixed(1, general_reserved_zero_bit, 0);
150 #undef profile_compatible
153 u(8, general_level_idc, 0, 255);
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);
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);
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 us(5, sub_layer_profile_idc[i], 0, 31, 1, i);
171 for (j = 0; j < 32; j++)
172 flags(sub_layer_profile_compatibility_flag[i][j], 2, i, j);
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);
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);
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);
200 fixed(24, sub_layer_reserved_zero_34bits, 0);
201 fixed(10, sub_layer_reserved_zero_34bits, 0);
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);
209 fixed(24, sub_layer_reserved_zero_43bits, 0);
210 fixed(19, sub_layer_reserved_zero_43bits, 0);
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);
218 fixed(1, sub_layer_reserved_zero_bit, 0);
220 #undef profile_compatible
222 if (current->sub_layer_level_present_flag[i])
223 us(8, sub_layer_level_idc[i], 0, 255, 1, i);
229 static int FUNC(sub_layer_hrd_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
230 H265RawHRDParameters *hrd,
231 int nal, int sub_layer_id)
233 H265RawSubLayerHRDParameters *current;
237 current = &hrd->nal_sub_layer_hrd_parameters[sub_layer_id];
239 current = &hrd->vcl_sub_layer_hrd_parameters[sub_layer_id];
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);
248 flags(cbr_flag[i], 1, i);
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)
260 if (common_inf_present_flag) {
261 flag(nal_hrd_parameters_present_flag);
262 flag(vcl_hrd_parameters_present_flag);
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 u(8, tick_divisor_minus2, 0, 255);
269 u(5, du_cpb_removal_delay_increment_length_minus1, 0, 31);
270 flag(sub_pic_cpb_params_in_pic_timing_sei_flag);
271 u(5, dpb_output_delay_du_length_minus1, 0, 31);
274 u(4, bit_rate_scale, 0, 15);
275 u(4, cpb_size_scale, 0, 15);
276 if (current->sub_pic_hrd_params_present_flag)
277 u(4, cpb_size_du_scale, 0, 15);
279 u(5, initial_cpb_removal_delay_length_minus1, 0, 31);
280 u(5, au_cpb_removal_delay_length_minus1, 0, 31);
281 u(5, dpb_output_delay_length_minus1, 0, 31);
283 infer(sub_pic_hrd_params_present_flag, 0);
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);
291 for (i = 0; i <= max_num_sub_layers_minus1; i++) {
292 flags(fixed_pic_rate_general_flag[i], 1, i);
294 if (!current->fixed_pic_rate_general_flag[i])
295 flags(fixed_pic_rate_within_cvs_flag[i], 1, i);
297 infer(fixed_pic_rate_within_cvs_flag[i], 1);
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);
303 flags(low_delay_hrd_flag[i], 1, i);
305 if (!current->low_delay_hrd_flag[i])
306 ues(cpb_cnt_minus1[i], 0, 31, 1, i);
308 infer(cpb_cnt_minus1[i], 0);
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));
319 static int FUNC(vui_parameters)(CodedBitstreamContext *ctx, RWContext *rw,
320 H265RawVUI *current, const H265RawSPS *sps)
324 flag(aspect_ratio_info_present_flag);
325 if (current->aspect_ratio_info_present_flag) {
326 u(8, aspect_ratio_idc, 0, 255);
327 if (current->aspect_ratio_idc == 255) {
328 u(16, sar_width, 0, 65535);
329 u(16, sar_height, 0, 65535);
332 infer(aspect_ratio_idc, 0);
335 flag(overscan_info_present_flag);
336 if (current->overscan_info_present_flag)
337 flag(overscan_appropriate_flag);
339 flag(video_signal_type_present_flag);
340 if (current->video_signal_type_present_flag) {
341 u(3, video_format, 0, 7);
342 flag(video_full_range_flag);
343 flag(colour_description_present_flag);
344 if (current->colour_description_present_flag) {
345 u(8, colour_primaries, 0, 255);
346 u(8, transfer_characteristics, 0, 255);
347 u(8, matrix_coefficients, 0, 255);
349 infer(colour_primaries, 2);
350 infer(transfer_characteristics, 2);
351 infer(matrix_coefficients, 2);
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);
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);
366 infer(chroma_sample_loc_type_top_field, 0);
367 infer(chroma_sample_loc_type_bottom_field, 0);
370 flag(neutral_chroma_indication_flag);
371 flag(field_seq_flag);
372 flag(frame_field_info_present_flag);
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);
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);
390 flag(vui_hrd_parameters_present_flag);
391 if (current->vui_hrd_parameters_present_flag) {
392 CHECK(FUNC(hrd_parameters)(ctx, rw, ¤t->hrd_parameters,
393 1, sps->sps_max_sub_layers_minus1));
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);
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);
420 static int FUNC(vps)(CodedBitstreamContext *ctx, RWContext *rw,
425 HEADER("Video Parameter Set");
427 CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_VPS));
429 u(4, vps_video_parameter_set_id, 0, 15);
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);
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;
445 fixed(16, vps_reserved_0xffff_16bits, 0xffff);
447 CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level,
448 1, current->vps_max_sub_layers_minus1));
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);
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]);
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);
478 for (j = 0; j <= current->vps_max_layer_id; j++)
479 infer(layer_id_included_flag[0][j], j == 0);
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);
494 flags(cprms_present_flag[i], 1, i);
496 infer(cprms_present_flag[0], 1);
498 CHECK(FUNC(hrd_parameters)(ctx, rw, ¤t->hrd_parameters[i],
499 current->cprms_present_flag[i],
500 current->vps_max_sub_layers_minus1));
504 flag(vps_extension_flag);
505 if (current->vps_extension_flag)
506 CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data));
508 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
513 static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw,
514 H265RawSTRefPicSet *current, int st_rps_idx,
515 const H265RawSPS *sps)
520 flag(inter_ref_pic_set_prediction_flag);
522 infer(inter_ref_pic_set_prediction_flag, 0);
524 if (current->inter_ref_pic_set_prediction_flag) {
525 unsigned int ref_rps_idx, num_delta_pocs;
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];
533 if (st_rps_idx == sps->num_short_term_ref_pic_sets)
534 ue(delta_idx_minus1, 0, st_rps_idx - 1);
536 infer(delta_idx_minus1, 0);
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;
542 flag(delta_rps_sign);
543 ue(abs_delta_rps_minus1, 0, INT16_MAX);
544 delta_rps = (1 - 2 * current->delta_rps_sign) *
545 (current->abs_delta_rps_minus1 + 1);
547 for (j = 0; j <= num_delta_pocs; j++) {
548 flags(used_by_curr_pic_flag[j], 1, j);
549 if (!current->used_by_curr_pic_flag[j])
550 flags(use_delta_flag[j], 1, j);
552 infer(use_delta_flag[j], 1);
555 // Since the stored form of an RPS here is actually the delta-step
556 // form used when inter_ref_pic_set_prediction_flag is not set, we
557 // need to reconstruct that here in order to be able to refer to
558 // the RPS later (which is required for parsing, because we don't
559 // even know what syntax elements appear without it). Therefore,
560 // this code takes the delta-step form of the reference set, turns
561 // it into the delta-array form, applies the prediction process of
562 // 7.4.8, converts the result back to the delta-step form, and
563 // stores that as the current set for future use. Note that the
564 // inferences here mean that writers using prediction will need
565 // to fill in the delta-step values correctly as well - since the
566 // whole RPS prediction process is somewhat overly sophisticated,
567 // this hopefully forms a useful check for them to ensure their
568 // predicted form actually matches what was intended rather than
569 // an onerous additional requirement.
572 for (i = 0; i < ref->num_negative_pics; i++) {
573 d_poc -= ref->delta_poc_s0_minus1[i] + 1;
574 ref_delta_poc_s0[i] = d_poc;
577 for (i = 0; i < ref->num_positive_pics; i++) {
578 d_poc += ref->delta_poc_s1_minus1[i] + 1;
579 ref_delta_poc_s1[i] = d_poc;
583 for (j = ref->num_positive_pics - 1; j >= 0; j--) {
584 d_poc = ref_delta_poc_s1[j] + delta_rps;
585 if (d_poc < 0 && current->use_delta_flag[ref->num_negative_pics + j]) {
586 delta_poc_s0[i] = d_poc;
587 used_by_curr_pic_s0[i++] =
588 current->used_by_curr_pic_flag[ref->num_negative_pics + j];
591 if (delta_rps < 0 && current->use_delta_flag[num_delta_pocs]) {
592 delta_poc_s0[i] = delta_rps;
593 used_by_curr_pic_s0[i++] =
594 current->used_by_curr_pic_flag[num_delta_pocs];
596 for (j = 0; j < ref->num_negative_pics; j++) {
597 d_poc = ref_delta_poc_s0[j] + delta_rps;
598 if (d_poc < 0 && current->use_delta_flag[j]) {
599 delta_poc_s0[i] = d_poc;
600 used_by_curr_pic_s0[i++] = current->used_by_curr_pic_flag[j];
604 infer(num_negative_pics, i);
605 for (i = 0; i < current->num_negative_pics; i++) {
606 infer(delta_poc_s0_minus1[i],
607 -(delta_poc_s0[i] - (i == 0 ? 0 : delta_poc_s0[i - 1])) - 1);
608 infer(used_by_curr_pic_s0_flag[i], used_by_curr_pic_s0[i]);
612 for (j = ref->num_negative_pics - 1; j >= 0; j--) {
613 d_poc = ref_delta_poc_s0[j] + delta_rps;
614 if (d_poc > 0 && current->use_delta_flag[j]) {
615 delta_poc_s1[i] = d_poc;
616 used_by_curr_pic_s1[i++] = current->used_by_curr_pic_flag[j];
619 if (delta_rps > 0 && current->use_delta_flag[num_delta_pocs]) {
620 delta_poc_s1[i] = delta_rps;
621 used_by_curr_pic_s1[i++] =
622 current->used_by_curr_pic_flag[num_delta_pocs];
624 for (j = 0; j < ref->num_positive_pics; j++) {
625 d_poc = ref_delta_poc_s1[j] + delta_rps;
626 if (d_poc > 0 && current->use_delta_flag[ref->num_negative_pics + j]) {
627 delta_poc_s1[i] = d_poc;
628 used_by_curr_pic_s1[i++] =
629 current->used_by_curr_pic_flag[ref->num_negative_pics + j];
633 infer(num_positive_pics, i);
634 for (i = 0; i < current->num_positive_pics; i++) {
635 infer(delta_poc_s1_minus1[i],
636 delta_poc_s1[i] - (i == 0 ? 0 : delta_poc_s1[i - 1]) - 1);
637 infer(used_by_curr_pic_s1_flag[i], used_by_curr_pic_s1[i]);
641 ue(num_negative_pics, 0, 15);
642 ue(num_positive_pics, 0, 15 - current->num_negative_pics);
644 for (i = 0; i < current->num_negative_pics; i++) {
645 ues(delta_poc_s0_minus1[i], 0, INT16_MAX, 1, i);
646 flags(used_by_curr_pic_s0_flag[i], 1, i);
649 for (i = 0; i < current->num_positive_pics; i++) {
650 ues(delta_poc_s1_minus1[i], 0, INT16_MAX, 1, i);
651 flags(used_by_curr_pic_s1_flag[i], 1, i);
658 static int FUNC(scaling_list_data)(CodedBitstreamContext *ctx, RWContext *rw,
659 H265RawScalingList *current)
661 int sizeId, matrixId;
664 for (sizeId = 0; sizeId < 4; sizeId++) {
665 for (matrixId = 0; matrixId < 6; matrixId += (sizeId == 3 ? 3 : 1)) {
666 flags(scaling_list_pred_mode_flag[sizeId][matrixId],
667 2, sizeId, matrixId);
668 if (!current->scaling_list_pred_mode_flag[sizeId][matrixId]) {
669 ues(scaling_list_pred_matrix_id_delta[sizeId][matrixId],
670 0, sizeId == 3 ? matrixId / 3 : matrixId,
671 2, sizeId, matrixId);
673 n = FFMIN(64, 1 << (4 + (sizeId << 1)));
675 ses(scaling_list_dc_coef_minus8[sizeId - 2][matrixId], -7, +247,
676 2, sizeId - 2, matrixId);
678 for (i = 0; i < n; i++) {
679 ses(scaling_list_delta_coeff[sizeId][matrixId][i],
680 -128, +127, 3, sizeId, matrixId, i);
689 static int FUNC(sps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw,
694 flag(transform_skip_rotation_enabled_flag);
695 flag(transform_skip_context_enabled_flag);
696 flag(implicit_rdpcm_enabled_flag);
697 flag(explicit_rdpcm_enabled_flag);
698 flag(extended_precision_processing_flag);
699 flag(intra_smoothing_disabled_flag);
700 flag(high_precision_offsets_enabled_flag);
701 flag(persistent_rice_adaptation_enabled_flag);
702 flag(cabac_bypass_alignment_enabled_flag);
707 static int FUNC(sps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw,
712 flag(sps_curr_pic_ref_enabled_flag);
714 flag(palette_mode_enabled_flag);
715 if (current->palette_mode_enabled_flag) {
716 ue(palette_max_size, 0, 64);
717 ue(delta_palette_max_predictor_size, 0, 128);
719 flag(sps_palette_predictor_initializer_present_flag);
720 if (current->sps_palette_predictor_initializer_present_flag) {
721 ue(sps_num_palette_predictor_initializer_minus1, 0, 128);
722 for (comp = 0; comp < (current->chroma_format_idc ? 3 : 1); comp++) {
723 int bit_depth = comp == 0 ? current->bit_depth_luma_minus8 + 8
724 : current->bit_depth_chroma_minus8 + 8;
725 for (i = 0; i <= current->sps_num_palette_predictor_initializer_minus1; i++)
726 us(bit_depth, sps_palette_predictor_initializers[comp][i],
727 0, MAX_UINT_BITS(bit_depth), 2, comp, i);
732 u(2, motion_vector_resolution_control_idc, 0, 2);
733 flag(intra_boundary_filtering_disable_flag);
738 static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
741 CodedBitstreamH265Context *h265 = ctx->priv_data;
742 const H265RawVPS *vps;
744 unsigned int min_cb_log2_size_y, ctb_log2_size_y,
745 min_cb_size_y, min_tb_log2_size_y;
747 HEADER("Sequence Parameter Set");
749 CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_SPS));
751 u(4, sps_video_parameter_set_id, 0, 15);
752 h265->active_vps = vps = h265->vps[current->sps_video_parameter_set_id];
754 u(3, sps_max_sub_layers_minus1, 0, HEVC_MAX_SUB_LAYERS - 1);
755 flag(sps_temporal_id_nesting_flag);
757 if (vps->vps_max_sub_layers_minus1 > current->sps_max_sub_layers_minus1) {
758 av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: "
759 "sps_max_sub_layers_minus1 (%d) must be less than or equal to "
760 "vps_max_sub_layers_minus1 (%d).\n",
761 vps->vps_max_sub_layers_minus1,
762 current->sps_max_sub_layers_minus1);
763 return AVERROR_INVALIDDATA;
765 if (vps->vps_temporal_id_nesting_flag &&
766 !current->sps_temporal_id_nesting_flag) {
767 av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid stream: "
768 "sps_temporal_id_nesting_flag must be 1 if "
769 "vps_temporal_id_nesting_flag is 1.\n");
770 return AVERROR_INVALIDDATA;
774 CHECK(FUNC(profile_tier_level)(ctx, rw, ¤t->profile_tier_level,
775 1, current->sps_max_sub_layers_minus1));
777 ue(sps_seq_parameter_set_id, 0, 15);
779 ue(chroma_format_idc, 0, 3);
780 if (current->chroma_format_idc == 3)
781 flag(separate_colour_plane_flag);
783 infer(separate_colour_plane_flag, 0);
785 ue(pic_width_in_luma_samples, 1, HEVC_MAX_WIDTH);
786 ue(pic_height_in_luma_samples, 1, HEVC_MAX_HEIGHT);
788 flag(conformance_window_flag);
789 if (current->conformance_window_flag) {
790 ue(conf_win_left_offset, 0, current->pic_width_in_luma_samples);
791 ue(conf_win_right_offset, 0, current->pic_width_in_luma_samples);
792 ue(conf_win_top_offset, 0, current->pic_height_in_luma_samples);
793 ue(conf_win_bottom_offset, 0, current->pic_height_in_luma_samples);
795 infer(conf_win_left_offset, 0);
796 infer(conf_win_right_offset, 0);
797 infer(conf_win_top_offset, 0);
798 infer(conf_win_bottom_offset, 0);
801 ue(bit_depth_luma_minus8, 0, 8);
802 ue(bit_depth_chroma_minus8, 0, 8);
804 ue(log2_max_pic_order_cnt_lsb_minus4, 0, 12);
806 flag(sps_sub_layer_ordering_info_present_flag);
807 for (i = (current->sps_sub_layer_ordering_info_present_flag ?
808 0 : current->sps_max_sub_layers_minus1);
809 i <= current->sps_max_sub_layers_minus1; i++) {
810 ues(sps_max_dec_pic_buffering_minus1[i],
811 0, HEVC_MAX_DPB_SIZE - 1, 1, i);
812 ues(sps_max_num_reorder_pics[i],
813 0, current->sps_max_dec_pic_buffering_minus1[i], 1, i);
814 ues(sps_max_latency_increase_plus1[i],
815 0, UINT32_MAX - 1, 1, i);
817 if (!current->sps_sub_layer_ordering_info_present_flag) {
818 for (i = 0; i < current->sps_max_sub_layers_minus1; i++) {
819 infer(sps_max_dec_pic_buffering_minus1[i],
820 current->sps_max_dec_pic_buffering_minus1[current->sps_max_sub_layers_minus1]);
821 infer(sps_max_num_reorder_pics[i],
822 current->sps_max_num_reorder_pics[current->sps_max_sub_layers_minus1]);
823 infer(sps_max_latency_increase_plus1[i],
824 current->sps_max_latency_increase_plus1[current->sps_max_sub_layers_minus1]);
828 ue(log2_min_luma_coding_block_size_minus3, 0, 3);
829 min_cb_log2_size_y = current->log2_min_luma_coding_block_size_minus3 + 3;
831 ue(log2_diff_max_min_luma_coding_block_size, 0, 3);
832 ctb_log2_size_y = min_cb_log2_size_y +
833 current->log2_diff_max_min_luma_coding_block_size;
835 min_cb_size_y = 1 << min_cb_log2_size_y;
836 if (current->pic_width_in_luma_samples % min_cb_size_y ||
837 current->pic_height_in_luma_samples % min_cb_size_y) {
838 av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid dimensions: %ux%u not divisible "
839 "by MinCbSizeY = %u.\n", current->pic_width_in_luma_samples,
840 current->pic_height_in_luma_samples, min_cb_size_y);
841 return AVERROR_INVALIDDATA;
844 ue(log2_min_luma_transform_block_size_minus2, 0, min_cb_log2_size_y - 3);
845 min_tb_log2_size_y = current->log2_min_luma_transform_block_size_minus2 + 2;
847 ue(log2_diff_max_min_luma_transform_block_size,
848 0, FFMIN(ctb_log2_size_y, 5) - min_tb_log2_size_y);
850 ue(max_transform_hierarchy_depth_inter,
851 0, ctb_log2_size_y - min_tb_log2_size_y);
852 ue(max_transform_hierarchy_depth_intra,
853 0, ctb_log2_size_y - min_tb_log2_size_y);
855 flag(scaling_list_enabled_flag);
856 if (current->scaling_list_enabled_flag) {
857 flag(sps_scaling_list_data_present_flag);
858 if (current->sps_scaling_list_data_present_flag)
859 CHECK(FUNC(scaling_list_data)(ctx, rw, ¤t->scaling_list));
861 infer(sps_scaling_list_data_present_flag, 0);
864 flag(amp_enabled_flag);
865 flag(sample_adaptive_offset_enabled_flag);
867 flag(pcm_enabled_flag);
868 if (current->pcm_enabled_flag) {
869 u(4, pcm_sample_bit_depth_luma_minus1,
870 0, current->bit_depth_luma_minus8 + 8 - 1);
871 u(4, pcm_sample_bit_depth_chroma_minus1,
872 0, current->bit_depth_chroma_minus8 + 8 - 1);
874 ue(log2_min_pcm_luma_coding_block_size_minus3,
875 FFMIN(min_cb_log2_size_y, 5) - 3, FFMIN(ctb_log2_size_y, 5) - 3);
876 ue(log2_diff_max_min_pcm_luma_coding_block_size,
877 0, FFMIN(ctb_log2_size_y, 5) - (current->log2_min_pcm_luma_coding_block_size_minus3 + 3));
879 flag(pcm_loop_filter_disabled_flag);
882 ue(num_short_term_ref_pic_sets, 0, HEVC_MAX_SHORT_TERM_REF_PIC_SETS);
883 for (i = 0; i < current->num_short_term_ref_pic_sets; i++)
884 CHECK(FUNC(st_ref_pic_set)(ctx, rw, ¤t->st_ref_pic_set[i], i, current));
886 flag(long_term_ref_pics_present_flag);
887 if (current->long_term_ref_pics_present_flag) {
888 ue(num_long_term_ref_pics_sps, 0, HEVC_MAX_LONG_TERM_REF_PICS);
889 for (i = 0; i < current->num_long_term_ref_pics_sps; i++) {
890 us(current->log2_max_pic_order_cnt_lsb_minus4 + 4,
891 lt_ref_pic_poc_lsb_sps[i],
892 0, MAX_UINT_BITS(current->log2_max_pic_order_cnt_lsb_minus4 + 4), 1, i);
893 flags(used_by_curr_pic_lt_sps_flag[i], 1, i);
897 flag(sps_temporal_mvp_enabled_flag);
898 flag(strong_intra_smoothing_enabled_flag);
900 flag(vui_parameters_present_flag);
901 if (current->vui_parameters_present_flag)
902 CHECK(FUNC(vui_parameters)(ctx, rw, ¤t->vui, current));
904 flag(sps_extension_present_flag);
905 if (current->sps_extension_present_flag) {
906 flag(sps_range_extension_flag);
907 flag(sps_multilayer_extension_flag);
908 flag(sps_3d_extension_flag);
909 flag(sps_scc_extension_flag);
910 u(4, sps_extension_4bits, 0, MAX_UINT_BITS(4));
913 if (current->sps_range_extension_flag)
914 CHECK(FUNC(sps_range_extension)(ctx, rw, current));
915 if (current->sps_multilayer_extension_flag)
916 return AVERROR_PATCHWELCOME;
917 if (current->sps_3d_extension_flag)
918 return AVERROR_PATCHWELCOME;
919 if (current->sps_scc_extension_flag)
920 CHECK(FUNC(sps_scc_extension)(ctx, rw, current));
921 if (current->sps_extension_4bits)
922 CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data));
924 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
929 static int FUNC(pps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw,
932 CodedBitstreamH265Context *h265 = ctx->priv_data;
933 const H265RawSPS *sps = h265->active_sps;
936 if (current->transform_skip_enabled_flag)
937 ue(log2_max_transform_skip_block_size_minus2, 0, 3);
938 flag(cross_component_prediction_enabled_flag);
940 flag(chroma_qp_offset_list_enabled_flag);
941 if (current->chroma_qp_offset_list_enabled_flag) {
942 ue(diff_cu_chroma_qp_offset_depth,
943 0, sps->log2_diff_max_min_luma_coding_block_size);
944 ue(chroma_qp_offset_list_len_minus1, 0, 5);
945 for (i = 0; i <= current->chroma_qp_offset_list_len_minus1; i++) {
946 ses(cb_qp_offset_list[i], -12, +12, 1, i);
947 ses(cr_qp_offset_list[i], -12, +12, 1, i);
951 ue(log2_sao_offset_scale_luma, 0, FFMAX(0, sps->bit_depth_luma_minus8 - 2));
952 ue(log2_sao_offset_scale_chroma, 0, FFMAX(0, sps->bit_depth_chroma_minus8 - 2));
957 static int FUNC(pps_scc_extension)(CodedBitstreamContext *ctx, RWContext *rw,
962 flag(pps_curr_pic_ref_enabled_flag);
964 flag(residual_adaptive_colour_transform_enabled_flag);
965 if (current->residual_adaptive_colour_transform_enabled_flag) {
966 flag(pps_slice_act_qp_offsets_present_flag);
967 se(pps_act_y_qp_offset_plus5, -7, +17);
968 se(pps_act_cb_qp_offset_plus5, -7, +17);
969 se(pps_act_cr_qp_offset_plus3, -9, +15);
971 infer(pps_slice_act_qp_offsets_present_flag, 0);
972 infer(pps_act_y_qp_offset_plus5, 0);
973 infer(pps_act_cb_qp_offset_plus5, 0);
974 infer(pps_act_cr_qp_offset_plus3, 0);
977 flag(pps_palette_predictor_initializer_present_flag);
978 if (current->pps_palette_predictor_initializer_present_flag) {
979 ue(pps_num_palette_predictor_initializer, 0, 128);
980 if (current->pps_num_palette_predictor_initializer > 0) {
981 flag(monochrome_palette_flag);
982 ue(luma_bit_depth_entry_minus8, 0, 8);
983 if (!current->monochrome_palette_flag)
984 ue(chroma_bit_depth_entry_minus8, 0, 8);
985 for (comp = 0; comp < (current->monochrome_palette_flag ? 1 : 3); comp++) {
986 int bit_depth = comp == 0 ? current->luma_bit_depth_entry_minus8 + 8
987 : current->chroma_bit_depth_entry_minus8 + 8;
988 for (i = 0; i < current->pps_num_palette_predictor_initializer; i++)
989 us(bit_depth, pps_palette_predictor_initializers[comp][i],
990 0, MAX_UINT_BITS(bit_depth), 2, comp, i);
998 static int FUNC(pps)(CodedBitstreamContext *ctx, RWContext *rw,
1001 CodedBitstreamH265Context *h265 = ctx->priv_data;
1002 const H265RawSPS *sps;
1005 HEADER("Picture Parameter Set");
1007 CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_PPS));
1009 ue(pps_pic_parameter_set_id, 0, 63);
1010 ue(pps_seq_parameter_set_id, 0, 15);
1011 sps = h265->sps[current->pps_seq_parameter_set_id];
1013 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1014 current->pps_seq_parameter_set_id);
1015 return AVERROR_INVALIDDATA;
1017 h265->active_sps = sps;
1019 flag(dependent_slice_segments_enabled_flag);
1020 flag(output_flag_present_flag);
1021 u(3, num_extra_slice_header_bits, 0, 7);
1022 flag(sign_data_hiding_enabled_flag);
1023 flag(cabac_init_present_flag);
1025 ue(num_ref_idx_l0_default_active_minus1, 0, 14);
1026 ue(num_ref_idx_l1_default_active_minus1, 0, 14);
1028 se(init_qp_minus26, -(26 + 6 * sps->bit_depth_luma_minus8), +25);
1030 flag(constrained_intra_pred_flag);
1031 flag(transform_skip_enabled_flag);
1032 flag(cu_qp_delta_enabled_flag);
1033 if (current->cu_qp_delta_enabled_flag)
1034 ue(diff_cu_qp_delta_depth,
1035 0, sps->log2_diff_max_min_luma_coding_block_size);
1037 infer(diff_cu_qp_delta_depth, 0);
1039 se(pps_cb_qp_offset, -12, +12);
1040 se(pps_cr_qp_offset, -12, +12);
1041 flag(pps_slice_chroma_qp_offsets_present_flag);
1043 flag(weighted_pred_flag);
1044 flag(weighted_bipred_flag);
1046 flag(transquant_bypass_enabled_flag);
1047 flag(tiles_enabled_flag);
1048 flag(entropy_coding_sync_enabled_flag);
1050 if (current->tiles_enabled_flag) {
1051 ue(num_tile_columns_minus1, 0, HEVC_MAX_TILE_COLUMNS);
1052 ue(num_tile_rows_minus1, 0, HEVC_MAX_TILE_ROWS);
1053 flag(uniform_spacing_flag);
1054 if (!current->uniform_spacing_flag) {
1055 for (i = 0; i < current->num_tile_columns_minus1; i++)
1056 ues(column_width_minus1[i], 0, sps->pic_width_in_luma_samples, 1, i);
1057 for (i = 0; i < current->num_tile_rows_minus1; i++)
1058 ues(row_height_minus1[i], 0, sps->pic_height_in_luma_samples, 1, i);
1060 flag(loop_filter_across_tiles_enabled_flag);
1062 infer(num_tile_columns_minus1, 0);
1063 infer(num_tile_rows_minus1, 0);
1066 flag(pps_loop_filter_across_slices_enabled_flag);
1067 flag(deblocking_filter_control_present_flag);
1068 if (current->deblocking_filter_control_present_flag) {
1069 flag(deblocking_filter_override_enabled_flag);
1070 flag(pps_deblocking_filter_disabled_flag);
1071 if (!current->pps_deblocking_filter_disabled_flag) {
1072 se(pps_beta_offset_div2, -6, +6);
1073 se(pps_tc_offset_div2, -6, +6);
1075 infer(pps_beta_offset_div2, 0);
1076 infer(pps_tc_offset_div2, 0);
1079 infer(deblocking_filter_override_enabled_flag, 0);
1080 infer(pps_deblocking_filter_disabled_flag, 0);
1081 infer(pps_beta_offset_div2, 0);
1082 infer(pps_tc_offset_div2, 0);
1085 flag(pps_scaling_list_data_present_flag);
1086 if (current->pps_scaling_list_data_present_flag)
1087 CHECK(FUNC(scaling_list_data)(ctx, rw, ¤t->scaling_list));
1089 flag(lists_modification_present_flag);
1091 ue(log2_parallel_merge_level_minus2,
1092 0, (sps->log2_min_luma_coding_block_size_minus3 + 3 +
1093 sps->log2_diff_max_min_luma_coding_block_size - 2));
1095 flag(slice_segment_header_extension_present_flag);
1097 flag(pps_extension_present_flag);
1098 if (current->pps_extension_present_flag) {
1099 flag(pps_range_extension_flag);
1100 flag(pps_multilayer_extension_flag);
1101 flag(pps_3d_extension_flag);
1102 flag(pps_scc_extension_flag);
1103 u(4, pps_extension_4bits, 0, MAX_UINT_BITS(4));
1105 if (current->pps_range_extension_flag)
1106 CHECK(FUNC(pps_range_extension)(ctx, rw, current));
1107 if (current->pps_multilayer_extension_flag)
1108 return AVERROR_PATCHWELCOME;
1109 if (current->pps_3d_extension_flag)
1110 return AVERROR_PATCHWELCOME;
1111 if (current->pps_scc_extension_flag)
1112 CHECK(FUNC(pps_scc_extension)(ctx, rw, current));
1113 if (current->pps_extension_4bits)
1114 CHECK(FUNC(extension_data)(ctx, rw, ¤t->extension_data));
1116 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
1121 static int FUNC(aud)(CodedBitstreamContext *ctx, RWContext *rw,
1122 H265RawAUD *current)
1126 HEADER("Access Unit Delimiter");
1128 CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, HEVC_NAL_AUD));
1130 u(3, pic_type, 0, 2);
1132 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
1137 static int FUNC(ref_pic_lists_modification)(CodedBitstreamContext *ctx, RWContext *rw,
1138 H265RawSliceHeader *current,
1139 unsigned int num_pic_total_curr)
1141 unsigned int entry_size;
1144 entry_size = av_log2(num_pic_total_curr - 1) + 1;
1146 flag(ref_pic_list_modification_flag_l0);
1147 if (current->ref_pic_list_modification_flag_l0) {
1148 for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++)
1149 us(entry_size, list_entry_l0[i], 0, num_pic_total_curr - 1, 1, i);
1152 if (current->slice_type == HEVC_SLICE_B) {
1153 flag(ref_pic_list_modification_flag_l1);
1154 if (current->ref_pic_list_modification_flag_l1) {
1155 for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++)
1156 us(entry_size, list_entry_l1[i], 0, num_pic_total_curr - 1, 1, i);
1163 static int FUNC(pred_weight_table)(CodedBitstreamContext *ctx, RWContext *rw,
1164 H265RawSliceHeader *current)
1166 CodedBitstreamH265Context *h265 = ctx->priv_data;
1167 const H265RawSPS *sps = h265->active_sps;
1169 int chroma = !sps->separate_colour_plane_flag &&
1170 sps->chroma_format_idc != 0;
1172 ue(luma_log2_weight_denom, 0, 7);
1174 se(delta_chroma_log2_weight_denom, -7, 7);
1176 infer(delta_chroma_log2_weight_denom, 0);
1178 for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
1179 if (1 /* is not same POC and same layer_id */)
1180 flags(luma_weight_l0_flag[i], 1, i);
1182 infer(luma_weight_l0_flag[i], 0);
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(chroma_weight_l0_flag[i], 1, i);
1189 infer(chroma_weight_l0_flag[i], 0);
1193 for (i = 0; i <= current->num_ref_idx_l0_active_minus1; i++) {
1194 if (current->luma_weight_l0_flag[i]) {
1195 ses(delta_luma_weight_l0[i], -128, +127, 1, i);
1196 ses(luma_offset_l0[i],
1197 -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
1198 ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i);
1200 infer(delta_luma_weight_l0[i], 0);
1201 infer(luma_offset_l0[i], 0);
1203 if (current->chroma_weight_l0_flag[i]) {
1204 for (j = 0; j < 2; j++) {
1205 ses(delta_chroma_weight_l0[i][j], -128, +127, 2, i, j);
1206 ses(chroma_offset_l0[i][j],
1207 -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
1208 ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j);
1211 for (j = 0; j < 2; j++) {
1212 infer(delta_chroma_weight_l0[i][j], 0);
1213 infer(chroma_offset_l0[i][j], 0);
1218 if (current->slice_type == HEVC_SLICE_B) {
1219 for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
1220 if (1 /* RefPicList1[i] is not CurrPic, nor is it in a different layer */)
1221 flags(luma_weight_l1_flag[i], 1, i);
1223 infer(luma_weight_l1_flag[i], 0);
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(chroma_weight_l1_flag[i], 1, i);
1230 infer(chroma_weight_l1_flag[i], 0);
1234 for (i = 0; i <= current->num_ref_idx_l1_active_minus1; i++) {
1235 if (current->luma_weight_l1_flag[i]) {
1236 ses(delta_luma_weight_l1[i], -128, +127, 1, i);
1237 ses(luma_offset_l1[i],
1238 -(1 << (sps->bit_depth_luma_minus8 + 8 - 1)),
1239 ((1 << (sps->bit_depth_luma_minus8 + 8 - 1)) - 1), 1, i);
1241 infer(delta_luma_weight_l1[i], 0);
1242 infer(luma_offset_l1[i], 0);
1244 if (current->chroma_weight_l1_flag[i]) {
1245 for (j = 0; j < 2; j++) {
1246 ses(delta_chroma_weight_l1[i][j], -128, +127, 2, i, j);
1247 ses(chroma_offset_l1[i][j],
1248 -(4 << (sps->bit_depth_chroma_minus8 + 8 - 1)),
1249 ((4 << (sps->bit_depth_chroma_minus8 + 8 - 1)) - 1), 2, i, j);
1252 for (j = 0; j < 2; j++) {
1253 infer(delta_chroma_weight_l1[i][j], 0);
1254 infer(chroma_offset_l1[i][j], 0);
1263 static int FUNC(slice_segment_header)(CodedBitstreamContext *ctx, RWContext *rw,
1264 H265RawSliceHeader *current)
1266 CodedBitstreamH265Context *h265 = ctx->priv_data;
1267 const H265RawSPS *sps;
1268 const H265RawPPS *pps;
1269 unsigned int min_cb_log2_size_y, ctb_log2_size_y, ctb_size_y;
1270 unsigned int pic_width_in_ctbs_y, pic_height_in_ctbs_y, pic_size_in_ctbs_y;
1271 unsigned int num_pic_total_curr = 0;
1274 HEADER("Slice Segment Header");
1276 CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header, -1));
1278 flag(first_slice_segment_in_pic_flag);
1280 if (current->nal_unit_header.nal_unit_type >= HEVC_NAL_BLA_W_LP &&
1281 current->nal_unit_header.nal_unit_type <= HEVC_NAL_IRAP_VCL23)
1282 flag(no_output_of_prior_pics_flag);
1284 ue(slice_pic_parameter_set_id, 0, 63);
1286 pps = h265->pps[current->slice_pic_parameter_set_id];
1288 av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
1289 current->slice_pic_parameter_set_id);
1290 return AVERROR_INVALIDDATA;
1292 h265->active_pps = pps;
1294 sps = h265->sps[pps->pps_seq_parameter_set_id];
1296 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1297 pps->pps_seq_parameter_set_id);
1298 return AVERROR_INVALIDDATA;
1300 h265->active_sps = sps;
1302 min_cb_log2_size_y = sps->log2_min_luma_coding_block_size_minus3 + 3;
1303 ctb_log2_size_y = min_cb_log2_size_y + sps->log2_diff_max_min_luma_coding_block_size;
1304 ctb_size_y = 1 << ctb_log2_size_y;
1305 pic_width_in_ctbs_y =
1306 (sps->pic_width_in_luma_samples + ctb_size_y - 1) / ctb_size_y;
1307 pic_height_in_ctbs_y =
1308 (sps->pic_height_in_luma_samples + ctb_size_y - 1) / ctb_size_y;
1309 pic_size_in_ctbs_y = pic_width_in_ctbs_y * pic_height_in_ctbs_y;
1311 if (!current->first_slice_segment_in_pic_flag) {
1312 unsigned int address_size = av_log2(pic_size_in_ctbs_y - 1) + 1;
1313 if (pps->dependent_slice_segments_enabled_flag)
1314 flag(dependent_slice_segment_flag);
1316 infer(dependent_slice_segment_flag, 0);
1317 u(address_size, slice_segment_address, 0, pic_size_in_ctbs_y - 1);
1319 infer(dependent_slice_segment_flag, 0);
1322 if (!current->dependent_slice_segment_flag) {
1323 for (i = 0; i < pps->num_extra_slice_header_bits; i++)
1324 flags(slice_reserved_flag[i], 1, i);
1326 ue(slice_type, 0, 2);
1328 if (pps->output_flag_present_flag)
1329 flag(pic_output_flag);
1331 if (sps->separate_colour_plane_flag)
1332 u(2, colour_plane_id, 0, 2);
1334 if (current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_W_RADL &&
1335 current->nal_unit_header.nal_unit_type != HEVC_NAL_IDR_N_LP) {
1336 const H265RawSTRefPicSet *rps;
1338 u(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, slice_pic_order_cnt_lsb,
1339 0, MAX_UINT_BITS(sps->log2_max_pic_order_cnt_lsb_minus4 + 4));
1341 flag(short_term_ref_pic_set_sps_flag);
1342 if (!current->short_term_ref_pic_set_sps_flag) {
1343 CHECK(FUNC(st_ref_pic_set)(ctx, rw, ¤t->short_term_ref_pic_set,
1344 sps->num_short_term_ref_pic_sets, sps));
1345 rps = ¤t->short_term_ref_pic_set;
1346 } else if (sps->num_short_term_ref_pic_sets > 1) {
1347 unsigned int idx_size = av_log2(sps->num_short_term_ref_pic_sets - 1) + 1;
1348 u(idx_size, short_term_ref_pic_set_idx,
1349 0, sps->num_short_term_ref_pic_sets - 1);
1350 rps = &sps->st_ref_pic_set[current->short_term_ref_pic_set_idx];
1352 infer(short_term_ref_pic_set_idx, 0);
1353 rps = &sps->st_ref_pic_set[0];
1356 num_pic_total_curr = 0;
1357 for (i = 0; i < rps->num_negative_pics; i++)
1358 if (rps->used_by_curr_pic_s0_flag[i])
1359 ++num_pic_total_curr;
1360 for (i = 0; i < rps->num_positive_pics; i++)
1361 if (rps->used_by_curr_pic_s1_flag[i])
1362 ++num_pic_total_curr;
1364 if (sps->long_term_ref_pics_present_flag) {
1365 unsigned int idx_size;
1367 if (sps->num_long_term_ref_pics_sps > 0) {
1368 ue(num_long_term_sps, 0, sps->num_long_term_ref_pics_sps);
1369 idx_size = av_log2(sps->num_long_term_ref_pics_sps - 1) + 1;
1371 infer(num_long_term_sps, 0);
1374 ue(num_long_term_pics, 0, HEVC_MAX_LONG_TERM_REF_PICS);
1376 for (i = 0; i < current->num_long_term_sps +
1377 current->num_long_term_pics; i++) {
1378 if (i < current->num_long_term_sps) {
1379 if (sps->num_long_term_ref_pics_sps > 1)
1380 us(idx_size, lt_idx_sps[i],
1381 0, sps->num_long_term_ref_pics_sps - 1, 1, i);
1382 if (sps->used_by_curr_pic_lt_sps_flag[current->lt_idx_sps[i]])
1383 ++num_pic_total_curr;
1385 us(sps->log2_max_pic_order_cnt_lsb_minus4 + 4, poc_lsb_lt[i],
1386 0, MAX_UINT_BITS(sps->log2_max_pic_order_cnt_lsb_minus4 + 4), 1, i);
1387 flags(used_by_curr_pic_lt_flag[i], 1, i);
1388 if (current->used_by_curr_pic_lt_flag[i])
1389 ++num_pic_total_curr;
1391 flags(delta_poc_msb_present_flag[i], 1, i);
1392 if (current->delta_poc_msb_present_flag[i])
1393 ues(delta_poc_msb_cycle_lt[i], 0, UINT32_MAX - 1, 1, i);
1395 infer(delta_poc_msb_cycle_lt[i], 0);
1399 if (sps->sps_temporal_mvp_enabled_flag)
1400 flag(slice_temporal_mvp_enabled_flag);
1402 infer(slice_temporal_mvp_enabled_flag, 0);
1404 if (pps->pps_curr_pic_ref_enabled_flag)
1405 ++num_pic_total_curr;
1408 if (sps->sample_adaptive_offset_enabled_flag) {
1409 flag(slice_sao_luma_flag);
1410 if (!sps->separate_colour_plane_flag && sps->chroma_format_idc != 0)
1411 flag(slice_sao_chroma_flag);
1413 infer(slice_sao_chroma_flag, 0);
1415 infer(slice_sao_luma_flag, 0);
1416 infer(slice_sao_chroma_flag, 0);
1419 if (current->slice_type == HEVC_SLICE_P ||
1420 current->slice_type == HEVC_SLICE_B) {
1421 flag(num_ref_idx_active_override_flag);
1422 if (current->num_ref_idx_active_override_flag) {
1423 ue(num_ref_idx_l0_active_minus1, 0, 14);
1424 if (current->slice_type == HEVC_SLICE_B)
1425 ue(num_ref_idx_l1_active_minus1, 0, 14);
1427 infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1);
1429 infer(num_ref_idx_l0_active_minus1, pps->num_ref_idx_l0_default_active_minus1);
1430 infer(num_ref_idx_l1_active_minus1, pps->num_ref_idx_l1_default_active_minus1);
1433 if (pps->lists_modification_present_flag && num_pic_total_curr > 1)
1434 CHECK(FUNC(ref_pic_lists_modification)(ctx, rw, current,
1435 num_pic_total_curr));
1437 if (current->slice_type == HEVC_SLICE_B)
1438 flag(mvd_l1_zero_flag);
1439 if (pps->cabac_init_present_flag)
1440 flag(cabac_init_flag);
1442 infer(cabac_init_flag, 0);
1443 if (current->slice_temporal_mvp_enabled_flag) {
1444 if (current->slice_type == HEVC_SLICE_B)
1445 flag(collocated_from_l0_flag);
1447 infer(collocated_from_l0_flag, 1);
1448 if (current->collocated_from_l0_flag) {
1449 if (current->num_ref_idx_l0_active_minus1 > 0)
1450 ue(collocated_ref_idx, 0, current->num_ref_idx_l0_active_minus1);
1452 infer(collocated_ref_idx, 0);
1454 if (current->num_ref_idx_l1_active_minus1 > 0)
1455 ue(collocated_ref_idx, 0, current->num_ref_idx_l1_active_minus1);
1457 infer(collocated_ref_idx, 0);
1461 if ((pps->weighted_pred_flag && current->slice_type == HEVC_SLICE_P) ||
1462 (pps->weighted_bipred_flag && current->slice_type == HEVC_SLICE_B))
1463 CHECK(FUNC(pred_weight_table)(ctx, rw, current));
1465 ue(five_minus_max_num_merge_cand, 0, 4);
1466 if (sps->motion_vector_resolution_control_idc == 2)
1467 flag(use_integer_mv_flag);
1469 infer(use_integer_mv_flag, sps->motion_vector_resolution_control_idc);
1473 - 6 * sps->bit_depth_luma_minus8 - (pps->init_qp_minus26 + 26),
1474 + 51 - (pps->init_qp_minus26 + 26));
1475 if (pps->pps_slice_chroma_qp_offsets_present_flag) {
1476 se(slice_cb_qp_offset, -12, +12);
1477 se(slice_cr_qp_offset, -12, +12);
1479 infer(slice_cb_qp_offset, 0);
1480 infer(slice_cr_qp_offset, 0);
1482 if (pps->pps_slice_act_qp_offsets_present_flag) {
1483 se(slice_act_y_qp_offset,
1484 -12 - (pps->pps_act_y_qp_offset_plus5 - 5),
1485 +12 - (pps->pps_act_y_qp_offset_plus5 - 5));
1486 se(slice_act_cb_qp_offset,
1487 -12 - (pps->pps_act_cb_qp_offset_plus5 - 5),
1488 +12 - (pps->pps_act_cb_qp_offset_plus5 - 5));
1489 se(slice_act_cr_qp_offset,
1490 -12 - (pps->pps_act_cr_qp_offset_plus3 - 3),
1491 +12 - (pps->pps_act_cr_qp_offset_plus3 - 3));
1493 infer(slice_act_y_qp_offset, 0);
1494 infer(slice_act_cb_qp_offset, 0);
1495 infer(slice_act_cr_qp_offset, 0);
1497 if (pps->chroma_qp_offset_list_enabled_flag)
1498 flag(cu_chroma_qp_offset_enabled_flag);
1500 infer(cu_chroma_qp_offset_enabled_flag, 0);
1502 if (pps->deblocking_filter_override_enabled_flag)
1503 flag(deblocking_filter_override_flag);
1505 infer(deblocking_filter_override_flag, 0);
1506 if (current->deblocking_filter_override_flag) {
1507 flag(slice_deblocking_filter_disabled_flag);
1508 if (!current->slice_deblocking_filter_disabled_flag) {
1509 se(slice_beta_offset_div2, -6, +6);
1510 se(slice_tc_offset_div2, -6, +6);
1512 infer(slice_beta_offset_div2, pps->pps_beta_offset_div2);
1513 infer(slice_tc_offset_div2, pps->pps_tc_offset_div2);
1516 infer(slice_deblocking_filter_disabled_flag,
1517 pps->pps_deblocking_filter_disabled_flag);
1518 infer(slice_beta_offset_div2, pps->pps_beta_offset_div2);
1519 infer(slice_tc_offset_div2, pps->pps_tc_offset_div2);
1521 if (pps->pps_loop_filter_across_slices_enabled_flag &&
1522 (current->slice_sao_luma_flag || current->slice_sao_chroma_flag ||
1523 !current->slice_deblocking_filter_disabled_flag))
1524 flag(slice_loop_filter_across_slices_enabled_flag);
1526 infer(slice_loop_filter_across_slices_enabled_flag,
1527 pps->pps_loop_filter_across_slices_enabled_flag);
1530 if (pps->tiles_enabled_flag || pps->entropy_coding_sync_enabled_flag) {
1531 unsigned int num_entry_point_offsets_limit;
1532 if (!pps->tiles_enabled_flag && pps->entropy_coding_sync_enabled_flag)
1533 num_entry_point_offsets_limit = pic_height_in_ctbs_y - 1;
1534 else if (pps->tiles_enabled_flag && !pps->entropy_coding_sync_enabled_flag)
1535 num_entry_point_offsets_limit =
1536 (pps->num_tile_columns_minus1 + 1) * (pps->num_tile_rows_minus1 + 1);
1538 num_entry_point_offsets_limit =
1539 (pps->num_tile_columns_minus1 + 1) * pic_height_in_ctbs_y - 1;
1540 ue(num_entry_point_offsets, 0, num_entry_point_offsets_limit);
1542 if (current->num_entry_point_offsets > HEVC_MAX_ENTRY_POINT_OFFSETS) {
1543 av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many entry points: "
1544 "%"PRIu16".\n", current->num_entry_point_offsets);
1545 return AVERROR_PATCHWELCOME;
1548 if (current->num_entry_point_offsets > 0) {
1549 ue(offset_len_minus1, 0, 31);
1550 for (i = 0; i < current->num_entry_point_offsets; i++)
1551 us(current->offset_len_minus1 + 1, entry_point_offset_minus1[i],
1552 0, MAX_UINT_BITS(current->offset_len_minus1 + 1), 1, i);
1556 if (pps->slice_segment_header_extension_present_flag) {
1557 ue(slice_segment_header_extension_length, 0, 256);
1558 for (i = 0; i < current->slice_segment_header_extension_length; i++)
1559 us(8, slice_segment_header_extension_data_byte[i], 0x00, 0xff, 1, i);
1562 CHECK(FUNC(byte_alignment)(ctx, rw));
1567 static int FUNC(sei_buffering_period)(CodedBitstreamContext *ctx, RWContext *rw,
1568 H265RawSEIBufferingPeriod *current,
1569 uint32_t *payload_size)
1571 CodedBitstreamH265Context *h265 = ctx->priv_data;
1572 const H265RawSPS *sps;
1573 const H265RawHRDParameters *hrd;
1577 int start_pos, end_pos, bits_left;
1578 start_pos = get_bits_count(rw);
1581 HEADER("Buffering Period");
1583 ue(bp_seq_parameter_set_id, 0, HEVC_MAX_SPS_COUNT - 1);
1585 sps = h265->sps[current->bp_seq_parameter_set_id];
1587 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1588 current->bp_seq_parameter_set_id);
1589 return AVERROR_INVALIDDATA;
1591 h265->active_sps = sps;
1593 if (!sps->vui_parameters_present_flag ||
1594 !sps->vui.vui_hrd_parameters_present_flag) {
1595 av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires "
1596 "HRD parameters to be present in SPS.\n");
1597 return AVERROR_INVALIDDATA;
1599 hrd = &sps->vui.hrd_parameters;
1600 if (!hrd->nal_hrd_parameters_present_flag &&
1601 !hrd->vcl_hrd_parameters_present_flag) {
1602 av_log(ctx->log_ctx, AV_LOG_ERROR, "Buffering period SEI requires "
1603 "NAL or VCL HRD parameters to be present.\n");
1604 return AVERROR_INVALIDDATA;
1607 if (!hrd->sub_pic_hrd_params_present_flag)
1608 flag(irap_cpb_params_present_flag);
1610 infer(irap_cpb_params_present_flag, 0);
1611 if (current->irap_cpb_params_present_flag) {
1612 length = hrd->au_cpb_removal_delay_length_minus1 + 1;
1613 u(length, cpb_delay_offset, 0, MAX_UINT_BITS(length));
1614 length = hrd->dpb_output_delay_length_minus1 + 1;
1615 u(length, dpb_delay_offset, 0, MAX_UINT_BITS(length));
1617 infer(cpb_delay_offset, 0);
1618 infer(dpb_delay_offset, 0);
1621 flag(concatenation_flag);
1623 length = hrd->au_cpb_removal_delay_length_minus1 + 1;
1624 u(length, au_cpb_removal_delay_delta_minus1, 0, MAX_UINT_BITS(length));
1626 if (hrd->nal_hrd_parameters_present_flag) {
1627 for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) {
1628 length = hrd->initial_cpb_removal_delay_length_minus1 + 1;
1630 us(length, nal_initial_cpb_removal_delay[i],
1631 0, MAX_UINT_BITS(length), 1, i);
1632 us(length, nal_initial_cpb_removal_offset[i],
1633 0, MAX_UINT_BITS(length), 1, i);
1635 if (hrd->sub_pic_hrd_params_present_flag ||
1636 current->irap_cpb_params_present_flag) {
1637 us(length, nal_initial_alt_cpb_removal_delay[i],
1638 0, MAX_UINT_BITS(length), 1, i);
1639 us(length, nal_initial_alt_cpb_removal_offset[i],
1640 0, MAX_UINT_BITS(length), 1, i);
1644 if (hrd->vcl_hrd_parameters_present_flag) {
1645 for (i = 0; i <= hrd->cpb_cnt_minus1[0]; i++) {
1646 length = hrd->initial_cpb_removal_delay_length_minus1 + 1;
1648 us(length, vcl_initial_cpb_removal_delay[i],
1649 0, MAX_UINT_BITS(length), 1, i);
1650 us(length, vcl_initial_cpb_removal_offset[i],
1651 0, MAX_UINT_BITS(length), 1, i);
1653 if (hrd->sub_pic_hrd_params_present_flag ||
1654 current->irap_cpb_params_present_flag) {
1655 us(length, vcl_initial_alt_cpb_removal_delay[i],
1656 0, MAX_UINT_BITS(length), 1, i);
1657 us(length, vcl_initial_alt_cpb_removal_offset[i],
1658 0, MAX_UINT_BITS(length), 1, i);
1664 // payload_extension_present() - true if we are before the last 1-bit
1665 // in the payload structure, which must be in the last byte.
1666 end_pos = get_bits_count(rw);
1667 bits_left = *payload_size * 8 - (end_pos - start_pos);
1668 if (bits_left > 0 &&
1669 (bits_left > 7 || ff_ctz(show_bits(rw, bits_left)) < bits_left - 1))
1670 flag(use_alt_cpb_params_flag);
1672 infer(use_alt_cpb_params_flag, 0);
1674 if (current->use_alt_cpb_params_flag)
1675 flag(use_alt_cpb_params_flag);
1681 static int FUNC(sei_pic_timing)(CodedBitstreamContext *ctx, RWContext *rw,
1682 H265RawSEIPicTiming *current)
1684 CodedBitstreamH265Context *h265 = ctx->priv_data;
1685 const H265RawSPS *sps;
1686 const H265RawHRDParameters *hrd;
1687 int err, expected_source_scan_type, i, length;
1689 HEADER("Picture Timing");
1691 sps = h265->active_sps;
1693 av_log(ctx->log_ctx, AV_LOG_ERROR,
1694 "No active SPS for pic_timing.\n");
1695 return AVERROR_INVALIDDATA;
1698 expected_source_scan_type = 2 -
1699 2 * sps->profile_tier_level.general_interlaced_source_flag -
1700 sps->profile_tier_level.general_progressive_source_flag;
1702 if (sps->vui.frame_field_info_present_flag) {
1703 u(4, pic_struct, 0, 12);
1704 u(2, source_scan_type,
1705 expected_source_scan_type >= 0 ? expected_source_scan_type : 0,
1706 expected_source_scan_type >= 0 ? expected_source_scan_type : 2);
1707 flag(duplicate_flag);
1709 infer(pic_struct, 0);
1710 infer(source_scan_type,
1711 expected_source_scan_type >= 0 ? expected_source_scan_type : 2);
1712 infer(duplicate_flag, 0);
1715 if (sps->vui_parameters_present_flag &&
1716 sps->vui.vui_hrd_parameters_present_flag)
1717 hrd = &sps->vui.hrd_parameters;
1720 if (hrd && (hrd->nal_hrd_parameters_present_flag ||
1721 hrd->vcl_hrd_parameters_present_flag)) {
1722 length = hrd->au_cpb_removal_delay_length_minus1 + 1;
1723 u(length, au_cpb_removal_delay_minus1, 0, MAX_UINT_BITS(length));
1725 length = hrd->dpb_output_delay_length_minus1 + 1;
1726 u(length, pic_dpb_output_delay, 0, MAX_UINT_BITS(length));
1728 if (hrd->sub_pic_hrd_params_present_flag) {
1729 length = hrd->dpb_output_delay_du_length_minus1 + 1;
1730 u(length, pic_dpb_output_du_delay, 0, MAX_UINT_BITS(length));
1733 if (hrd->sub_pic_hrd_params_present_flag &&
1734 hrd->sub_pic_cpb_params_in_pic_timing_sei_flag) {
1735 // Each decoding unit must contain at least one slice segment.
1736 ue(num_decoding_units_minus1, 0, HEVC_MAX_SLICE_SEGMENTS);
1737 flag(du_common_cpb_removal_delay_flag);
1739 length = hrd->du_cpb_removal_delay_increment_length_minus1 + 1;
1740 if (current->du_common_cpb_removal_delay_flag)
1741 u(length, du_common_cpb_removal_delay_increment_minus1,
1742 0, MAX_UINT_BITS(length));
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 us(length, du_cpb_removal_delay_increment_minus1[i],
1750 0, MAX_UINT_BITS(length), 1, i);
1758 static int FUNC(sei_pan_scan_rect)(CodedBitstreamContext *ctx, RWContext *rw,
1759 H265RawSEIPanScanRect *current)
1763 HEADER("Pan-Scan Rectangle");
1765 ue(pan_scan_rect_id, 0, UINT32_MAX - 1);
1766 flag(pan_scan_rect_cancel_flag);
1768 if (!current->pan_scan_rect_cancel_flag) {
1769 ue(pan_scan_cnt_minus1, 0, 2);
1771 for (i = 0; i <= current->pan_scan_cnt_minus1; i++) {
1772 ses(pan_scan_rect_left_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1773 ses(pan_scan_rect_right_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1774 ses(pan_scan_rect_top_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1775 ses(pan_scan_rect_bottom_offset[i], INT32_MIN + 1, INT32_MAX, 1, i);
1778 flag(pan_scan_rect_persistence_flag);
1784 static int FUNC(sei_user_data_registered)(CodedBitstreamContext *ctx, RWContext *rw,
1785 H265RawSEIUserDataRegistered *current,
1786 uint32_t *payload_size)
1790 HEADER("User Data Registered ITU-T T.35");
1792 u(8, itu_t_t35_country_code, 0x00, 0xff);
1793 if (current->itu_t_t35_country_code != 0xff)
1796 u(8, itu_t_t35_country_code_extension_byte, 0x00, 0xff);
1801 if (*payload_size < i) {
1802 av_log(ctx->log_ctx, AV_LOG_ERROR,
1803 "Invalid SEI user data registered payload.\n");
1804 return AVERROR_INVALIDDATA;
1806 current->data_length = *payload_size - i;
1808 *payload_size = i + current->data_length;
1811 allocate(current->data, current->data_length);
1812 for (j = 0; j < current->data_length; j++)
1813 xu(8, itu_t_t35_payload_byte[i], current->data[j], 0x00, 0xff, 1, i + j);
1818 static int FUNC(sei_user_data_unregistered)(CodedBitstreamContext *ctx, RWContext *rw,
1819 H265RawSEIUserDataUnregistered *current,
1820 uint32_t *payload_size)
1824 HEADER("User Data Unregistered");
1827 if (*payload_size < 16) {
1828 av_log(ctx->log_ctx, AV_LOG_ERROR,
1829 "Invalid SEI user data unregistered payload.\n");
1830 return AVERROR_INVALIDDATA;
1832 current->data_length = *payload_size - 16;
1834 *payload_size = 16 + current->data_length;
1837 for (i = 0; i < 16; i++)
1838 us(8, uuid_iso_iec_11578[i], 0x00, 0xff, 1, i);
1840 allocate(current->data, current->data_length);
1842 for (i = 0; i < current->data_length; i++)
1843 xu(8, user_data_payload_byte[i], current->data[i], 0x00, 0xff, 1, i);
1848 static int FUNC(sei_recovery_point)(CodedBitstreamContext *ctx, RWContext *rw,
1849 H265RawSEIRecoveryPoint *current)
1853 HEADER("Recovery Point");
1855 se(recovery_poc_cnt, -32768, 32767);
1857 flag(exact_match_flag);
1858 flag(broken_link_flag);
1863 static int FUNC(sei_display_orientation)(CodedBitstreamContext *ctx, RWContext *rw,
1864 H265RawSEIDisplayOrientation *current)
1868 HEADER("Display Orientation");
1870 flag(display_orientation_cancel_flag);
1871 if (!current->display_orientation_cancel_flag) {
1874 u(16, anticlockwise_rotation, 0, 65535);
1875 flag(display_orientation_persistence_flag);
1881 static int FUNC(sei_active_parameter_sets)(CodedBitstreamContext *ctx, RWContext *rw,
1882 H265RawSEIActiveParameterSets *current)
1884 CodedBitstreamH265Context *h265 = ctx->priv_data;
1885 const H265RawVPS *vps;
1888 HEADER("Active Parameter Sets");
1890 u(4, active_video_parameter_set_id, 0, HEVC_MAX_VPS_COUNT);
1891 vps = h265->vps[current->active_video_parameter_set_id];
1893 av_log(ctx->log_ctx, AV_LOG_ERROR, "VPS id %d not available for active "
1894 "parameter sets.\n", current->active_video_parameter_set_id);
1895 return AVERROR_INVALIDDATA;
1897 h265->active_vps = vps;
1899 flag(self_contained_cvs_flag);
1900 flag(no_parameter_set_update_flag);
1902 ue(num_sps_ids_minus1, 0, HEVC_MAX_SPS_COUNT - 1);
1903 for (i = 0; i <= current->num_sps_ids_minus1; i++)
1904 ues(active_seq_parameter_set_id[i], 0, HEVC_MAX_SPS_COUNT - 1, 1, i);
1906 for (i = vps->vps_base_layer_internal_flag;
1907 i <= FFMIN(62, vps->vps_max_layers_minus1); i++) {
1908 ues(layer_sps_idx[i], 0, current->num_sps_ids_minus1, 1, i);
1911 h265->active_sps = h265->sps[current->active_seq_parameter_set_id[current->layer_sps_idx[0]]];
1917 static int FUNC(sei_decoded_picture_hash)(CodedBitstreamContext *ctx, RWContext *rw,
1918 H265RawSEIDecodedPictureHash *current)
1920 CodedBitstreamH265Context *h265 = ctx->priv_data;
1921 const H265RawSPS *sps = h265->active_sps;
1924 HEADER("Decoded Picture Hash");
1927 av_log(ctx->log_ctx, AV_LOG_ERROR,
1928 "No active SPS for decoded picture hash.\n");
1929 return AVERROR_INVALIDDATA;
1932 u(8, hash_type, 0, 2);
1934 for (c = 0; c < (sps->chroma_format_idc == 0 ? 1 : 3); c++) {
1935 if (current->hash_type == 0) {
1936 for (i = 0; i < 16; i++)
1937 us(8, picture_md5[c][i], 0x00, 0xff, 2, c, i);
1938 } else if (current->hash_type == 1) {
1939 us(16, picture_crc[c], 0x0000, 0xffff, 1, c);
1940 } else if (current->hash_type == 2) {
1941 us(32, picture_checksum[c], 0x00000000, 0xffffffff, 1, c);
1948 static int FUNC(sei_time_code)(CodedBitstreamContext *ctx, RWContext *rw,
1949 H265RawSEITimeCode *current)
1953 HEADER("Time Code");
1955 u(2, num_clock_ts, 1, 3);
1957 for (i = 0; i < current->num_clock_ts; i++) {
1958 flags(clock_timestamp_flag[i], 1, i);
1960 if (current->clock_timestamp_flag[i]) {
1961 flags(units_field_based_flag[i], 1, i);
1962 us(5, counting_type[i], 0, 6, 1, i);
1963 flags(full_timestamp_flag[i], 1, i);
1964 flags(discontinuity_flag[i], 1, i);
1965 flags(cnt_dropped_flag[i], 1, i);
1967 us(9, n_frames[i], 0, MAX_UINT_BITS(9), 1, i);
1969 if (current->full_timestamp_flag[i]) {
1970 us(6, seconds_value[i], 0, 59, 1, i);
1971 us(6, minutes_value[i], 0, 59, 1, i);
1972 us(5, hours_value[i], 0, 23, 1, i);
1974 flags(seconds_flag[i], 1, i);
1975 if (current->seconds_flag[i]) {
1976 us(6, seconds_value[i], 0, 59, 1, i);
1977 flags(minutes_flag[i], 1, i);
1978 if (current->minutes_flag[i]) {
1979 us(6, minutes_value[i], 0, 59, 1, i);
1980 flags(hours_flag[i], 1, i);
1981 if (current->hours_flag[i])
1982 us(5, hours_value[i], 0, 23, 1, i);
1987 us(5, time_offset_length[i], 0, 31, 1, i);
1988 if (current->time_offset_length[i] > 0)
1989 us(current->time_offset_length[i], time_offset_value[i],
1990 0, MAX_UINT_BITS(current->time_offset_length[i]), 1, i);
1997 static int FUNC(sei_mastering_display)(CodedBitstreamContext *ctx, RWContext *rw,
1998 H265RawSEIMasteringDisplayColourVolume *current)
2002 HEADER("Mastering Display Colour Volume");
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);
2009 u(16, white_point_x, 0, 50000);
2010 u(16, white_point_y, 0, 50000);
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);
2020 static int FUNC(sei_content_light_level)(CodedBitstreamContext *ctx, RWContext *rw,
2021 H265RawSEIContentLightLevelInfo *current)
2025 HEADER("Content Light Level");
2027 u(16, max_content_light_level, 0, MAX_UINT_BITS(16));
2028 u(16, max_pic_average_light_level, 0, MAX_UINT_BITS(16));
2033 static int FUNC(sei_alternative_transfer_characteristics)(CodedBitstreamContext *ctx,
2035 H265RawSEIAlternativeTransferCharacteristics *current)
2039 HEADER("Alternative Transfer Characteristics");
2041 u(8, preferred_transfer_characteristics, 0, 255);
2046 static int FUNC(sei_payload)(CodedBitstreamContext *ctx, RWContext *rw,
2047 H265RawSEIPayload *current, int prefix)
2050 int start_position, end_position;
2053 start_position = get_bits_count(rw);
2055 start_position = put_bits_count(rw);
2058 switch (current->payload_type) {
2059 #define SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid) do { \
2060 if (prefix && !prefix_valid) { \
2061 av_log(ctx->log_ctx, AV_LOG_ERROR, "SEI type %s invalid " \
2062 "as prefix SEI!\n", #name); \
2063 return AVERROR_INVALIDDATA; \
2065 if (!prefix && !suffix_valid) { \
2066 av_log(ctx->log_ctx, AV_LOG_ERROR, "SEI type %s invalid " \
2067 "as suffix SEI!\n", #name); \
2068 return AVERROR_INVALIDDATA; \
2071 #define SEI_TYPE_N(type, prefix_valid, suffix_valid, name) \
2072 case HEVC_SEI_TYPE_ ## type: \
2073 SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
2074 CHECK(FUNC(sei_ ## name)(ctx, rw, ¤t->payload.name)); \
2076 #define SEI_TYPE_S(type, prefix_valid, suffix_valid, name) \
2077 case HEVC_SEI_TYPE_ ## type: \
2078 SEI_TYPE_CHECK_VALID(name, prefix_valid, suffix_valid); \
2079 CHECK(FUNC(sei_ ## name)(ctx, rw, ¤t->payload.name, \
2080 ¤t->payload_size)); \
2083 SEI_TYPE_S(BUFFERING_PERIOD, 1, 0, buffering_period);
2084 SEI_TYPE_N(PICTURE_TIMING, 1, 0, pic_timing);
2085 SEI_TYPE_N(PAN_SCAN_RECT, 1, 0, pan_scan_rect);
2086 SEI_TYPE_S(USER_DATA_REGISTERED_ITU_T_T35,
2087 1, 1, user_data_registered);
2088 SEI_TYPE_S(USER_DATA_UNREGISTERED, 1, 1, user_data_unregistered);
2089 SEI_TYPE_N(RECOVERY_POINT, 1, 0, recovery_point);
2090 SEI_TYPE_N(DISPLAY_ORIENTATION, 1, 0, display_orientation);
2091 SEI_TYPE_N(ACTIVE_PARAMETER_SETS, 1, 0, active_parameter_sets);
2092 SEI_TYPE_N(DECODED_PICTURE_HASH, 0, 1, decoded_picture_hash);
2093 SEI_TYPE_N(TIME_CODE, 1, 0, time_code);
2094 SEI_TYPE_N(MASTERING_DISPLAY_INFO, 1, 0, mastering_display);
2095 SEI_TYPE_N(CONTENT_LIGHT_LEVEL_INFO, 1, 0, content_light_level);
2096 SEI_TYPE_N(ALTERNATIVE_TRANSFER_CHARACTERISTICS,
2097 1, 0, alternative_transfer_characteristics);
2103 current->payload.other.data_length = current->payload_size;
2105 allocate(current->payload.other.data, current->payload.other.data_length);
2107 for (i = 0; i < current->payload_size; i++)
2108 xu(8, payload_byte[i], current->payload.other.data[i], 0, 255,
2113 if (byte_alignment(rw)) {
2114 fixed(1, bit_equal_to_one, 1);
2115 while (byte_alignment(rw))
2116 fixed(1, bit_equal_to_zero, 0);
2120 end_position = get_bits_count(rw);
2121 if (end_position < start_position + 8 * current->payload_size) {
2122 av_log(ctx->log_ctx, AV_LOG_ERROR, "Incorrect SEI payload length: "
2123 "header %"PRIu32" bits, actually %d bits.\n",
2124 8 * current->payload_size,
2125 end_position - start_position);
2126 return AVERROR_INVALIDDATA;
2129 end_position = put_bits_count(rw);
2130 current->payload_size = (end_position - start_position) >> 3;
2136 static int FUNC(sei)(CodedBitstreamContext *ctx, RWContext *rw,
2137 H265RawSEI *current, int prefix)
2142 HEADER("Prefix Supplemental Enhancement Information");
2144 HEADER("Suffix Supplemental Enhancement Information");
2146 CHECK(FUNC(nal_unit_header)(ctx, rw, ¤t->nal_unit_header,
2147 prefix ? HEVC_NAL_SEI_PREFIX
2148 : HEVC_NAL_SEI_SUFFIX));
2151 for (k = 0; k < H265_MAX_SEI_PAYLOADS; k++) {
2152 uint32_t payload_type = 0;
2153 uint32_t payload_size = 0;
2156 while (show_bits(rw, 8) == 0xff) {
2157 fixed(8, ff_byte, 0xff);
2158 payload_type += 255;
2160 xu(8, last_payload_type_byte, tmp, 0, 254, 0);
2161 payload_type += tmp;
2163 while (show_bits(rw, 8) == 0xff) {
2164 fixed(8, ff_byte, 0xff);
2165 payload_size += 255;
2167 xu(8, last_payload_size_byte, tmp, 0, 254, 0);
2168 payload_size += tmp;
2170 current->payload[k].payload_type = payload_type;
2171 current->payload[k].payload_size = payload_size;
2173 CHECK(FUNC(sei_payload)(ctx, rw, ¤t->payload[k], prefix));
2175 if (!cbs_h2645_read_more_rbsp_data(rw))
2178 if (k >= H265_MAX_SEI_PAYLOADS) {
2179 av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many payloads in "
2180 "SEI message: found %d.\n", k);
2181 return AVERROR_INVALIDDATA;
2183 current->payload_count = k + 1;
2185 for (k = 0; k < current->payload_count; k++) {
2186 PutBitContext start_state;
2190 // Somewhat clumsy: we write the payload twice when
2191 // we don't know the size in advance. This will mess
2192 // with trace output, but is otherwise harmless.
2194 need_size = !current->payload[k].payload_size;
2195 for (i = 0; i < 1 + need_size; i++) {
2198 tmp = current->payload[k].payload_type;
2199 while (tmp >= 255) {
2200 fixed(8, ff_byte, 0xff);
2203 xu(8, last_payload_type_byte, tmp, 0, 254, 0);
2205 tmp = current->payload[k].payload_size;
2206 while (tmp >= 255) {
2207 fixed(8, ff_byte, 0xff);
2210 xu(8, last_payload_size_byte, tmp, 0, 254, 0);
2212 CHECK(FUNC(sei_payload)(ctx, rw, ¤t->payload[k], prefix));
2217 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));