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cbs_h266_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
19static int FUNC(rbsp_trailing_bits) (CodedBitstreamContext *ctx,
20 RWContext *rw)
21{
22 int err;
23
24 fixed(1, rbsp_stop_one_bit, 1);
25 while (byte_alignment(rw) != 0)
26 fixed(1, rbsp_alignment_zero_bit, 0);
27 return 0;
28}
29
30static int FUNC(nal_unit_header) (CodedBitstreamContext *ctx, RWContext *rw,
31 H266RawNALUnitHeader *current,
32 int expected_nal_unit_type)
33{
34 int err;
35
36 fixed(1, forbidden_zero_bit, 0);
37 flag(nuh_reserved_zero_bit);
38
39 u(6, nuh_layer_id, 0, 55);
40
41 if (expected_nal_unit_type >= 0)
42 u(5, nal_unit_type, expected_nal_unit_type, expected_nal_unit_type);
43 else
44 ub(5, nal_unit_type);
45
46 u(3, nuh_temporal_id_plus1, 1, 7);
47 return 0;
48}
49
50static int FUNC(byte_alignment) (CodedBitstreamContext *ctx, RWContext *rw)
51{
52 int err;
53
54 fixed(1, byte_alignment_bit_equal_to_one, 1);
55 while (byte_alignment(rw) != 0)
56 fixed(1, byte_alignment_bit_equal_to_zero, 0);
57 return 0;
58}
59
60static int FUNC(general_constraints_info) (CodedBitstreamContext *ctx,
61 RWContext *rw,
62 H266GeneralConstraintsInfo *current)
63{
64 int err, i, num_additional_bits_used;
65
66 flag(gci_present_flag);
67 if (current->gci_present_flag) {
68 /* general */
69 flag(gci_intra_only_constraint_flag);
70 flag(gci_all_layers_independent_constraint_flag);
71 flag(gci_one_au_only_constraint_flag);
72
73 /* picture format */
74 u(4, gci_sixteen_minus_max_bitdepth_constraint_idc, 0, 8);
75 ub(2, gci_three_minus_max_chroma_format_constraint_idc);
76
77 /* NAL unit type related */
78 flag(gci_no_mixed_nalu_types_in_pic_constraint_flag);
79 flag(gci_no_trail_constraint_flag);
80 flag(gci_no_stsa_constraint_flag);
81 flag(gci_no_rasl_constraint_flag);
82 flag(gci_no_radl_constraint_flag);
83 flag(gci_no_idr_constraint_flag);
84 flag(gci_no_cra_constraint_flag);
85 flag(gci_no_gdr_constraint_flag);
86 flag(gci_no_aps_constraint_flag);
87 flag(gci_no_idr_rpl_constraint_flag);
88
89 /* tile, slice, subpicture partitioning */
90 flag(gci_one_tile_per_pic_constraint_flag);
91 flag(gci_pic_header_in_slice_header_constraint_flag);
92 flag(gci_one_slice_per_pic_constraint_flag);
93 flag(gci_no_rectangular_slice_constraint_flag);
94 flag(gci_one_slice_per_subpic_constraint_flag);
95 flag(gci_no_subpic_info_constraint_flag);
96
97 /* CTU and block partitioning */
98 ub(2, gci_three_minus_max_log2_ctu_size_constraint_idc);
99 flag(gci_no_partition_constraints_override_constraint_flag);
100 flag(gci_no_mtt_constraint_flag);
101 flag(gci_no_qtbtt_dual_tree_intra_constraint_flag);
102
103 /* intra */
104 flag(gci_no_palette_constraint_flag);
105 flag(gci_no_ibc_constraint_flag);
106 flag(gci_no_isp_constraint_flag);
107 flag(gci_no_mrl_constraint_flag);
108 flag(gci_no_mip_constraint_flag);
109 flag(gci_no_cclm_constraint_flag);
110
111 /* inter */
112 flag(gci_no_ref_pic_resampling_constraint_flag);
113 flag(gci_no_res_change_in_clvs_constraint_flag);
114 flag(gci_no_weighted_prediction_constraint_flag);
115 flag(gci_no_ref_wraparound_constraint_flag);
116 flag(gci_no_temporal_mvp_constraint_flag);
117 flag(gci_no_sbtmvp_constraint_flag);
118 flag(gci_no_amvr_constraint_flag);
119 flag(gci_no_bdof_constraint_flag);
120 flag(gci_no_smvd_constraint_flag);
121 flag(gci_no_dmvr_constraint_flag);
122 flag(gci_no_mmvd_constraint_flag);
123 flag(gci_no_affine_motion_constraint_flag);
124 flag(gci_no_prof_constraint_flag);
125 flag(gci_no_bcw_constraint_flag);
126 flag(gci_no_ciip_constraint_flag);
127 flag(gci_no_gpm_constraint_flag);
128
129 /* transform, quantization, residual */
130 flag(gci_no_luma_transform_size_64_constraint_flag);
131 flag(gci_no_transform_skip_constraint_flag);
132 flag(gci_no_bdpcm_constraint_flag);
133 flag(gci_no_mts_constraint_flag);
134 flag(gci_no_lfnst_constraint_flag);
135 flag(gci_no_joint_cbcr_constraint_flag);
136 flag(gci_no_sbt_constraint_flag);
137 flag(gci_no_act_constraint_flag);
138 flag(gci_no_explicit_scaling_list_constraint_flag);
139 flag(gci_no_dep_quant_constraint_flag);
140 flag(gci_no_sign_data_hiding_constraint_flag);
141 flag(gci_no_cu_qp_delta_constraint_flag);
142 flag(gci_no_chroma_qp_offset_constraint_flag);
143
144 /* loop filter */
145 flag(gci_no_sao_constraint_flag);
146 flag(gci_no_alf_constraint_flag);
147 flag(gci_no_ccalf_constraint_flag);
148 flag(gci_no_lmcs_constraint_flag);
149 flag(gci_no_ladf_constraint_flag);
150 flag(gci_no_virtual_boundaries_constraint_flag);
151 ub(8, gci_num_additional_bits);
152 if (current->gci_num_additional_bits > 5) {
153 flag(gci_all_rap_pictures_constraint_flag);
154 flag(gci_no_extended_precision_processing_constraint_flag);
155 flag(gci_no_ts_residual_coding_rice_constraint_flag);
156 flag(gci_no_rrc_rice_extension_constraint_flag);
157 flag(gci_no_persistent_rice_adaptation_constraint_flag);
158 flag(gci_no_reverse_last_sig_coeff_constraint_flag);
159 num_additional_bits_used = 6;
160 } else {
161 infer(gci_all_rap_pictures_constraint_flag, 0);
162 infer(gci_no_extended_precision_processing_constraint_flag, 0);
163 infer(gci_no_ts_residual_coding_rice_constraint_flag, 0);
164 infer(gci_no_rrc_rice_extension_constraint_flag, 0);
165 infer(gci_no_persistent_rice_adaptation_constraint_flag, 0);
166 infer(gci_no_reverse_last_sig_coeff_constraint_flag, 0);
167 num_additional_bits_used = 0;
168 }
169
170 for (i = 0; i < current->gci_num_additional_bits - num_additional_bits_used; i++)
171 flags(gci_reserved_bit[i], 1, i);
172 }
173 while (byte_alignment(rw) != 0)
174 fixed(1, gci_alignment_zero_bit, 0);
175 return 0;
176}
177
178static int FUNC(profile_tier_level) (CodedBitstreamContext *ctx,
179 RWContext *rw,
180 H266RawProfileTierLevel *current,
181 int profile_tier_present_flag,
182 int max_num_sub_layers_minus1)
183{
184 int err, i;
185
186 if (profile_tier_present_flag) {
187 ub(7, general_profile_idc);
188 flag(general_tier_flag);
189 }
190 ub(8, general_level_idc);
191 flag(ptl_frame_only_constraint_flag);
192 flag(ptl_multilayer_enabled_flag);
193 if (profile_tier_present_flag) {
194 CHECK(FUNC(general_constraints_info) (ctx, rw,
195 &current->
196 general_constraints_info));
197 }
198 for (i = max_num_sub_layers_minus1 - 1; i >= 0; i--)
199 flags(ptl_sublayer_level_present_flag[i], 1, i);
200 while (byte_alignment(rw) != 0)
201 flag(ptl_reserved_zero_bit);
202 for (i = max_num_sub_layers_minus1 - 1; i >= 0; i--)
203 if (current->ptl_sublayer_level_present_flag[i])
204 ubs(8, sublayer_level_idc[i], 1, i);
205 if (profile_tier_present_flag) {
206 ub(8, ptl_num_sub_profiles);
207 for (i = 0; i < current->ptl_num_sub_profiles; i++)
208 ubs(32, general_sub_profile_idc[i], 1, i);
209 }
210 return 0;
211}
212
213static int FUNC(vui_parameters_default) (CodedBitstreamContext *ctx,
214 RWContext *rw, H266RawVUI *current)
215{
216 //defined in D.8
217 infer(vui_progressive_source_flag, 0);
218 infer(vui_interlaced_source_flag, 0);
219
220 infer(vui_non_packed_constraint_flag, 0);
221 infer(vui_non_projected_constraint_flag, 0);
222
223 infer(vui_aspect_ratio_constant_flag, 0);
224 infer(vui_aspect_ratio_idc, 0);
225
226 infer(vui_overscan_info_present_flag, 0);
227
228 infer(vui_colour_primaries, 2);
229 infer(vui_transfer_characteristics, 2);
230 infer(vui_matrix_coeffs, 2);
231 infer(vui_full_range_flag, 0);
232
233 infer(vui_chroma_sample_loc_type_frame, 6);
234 infer(vui_chroma_sample_loc_type_top_field, 6);
235 infer(vui_chroma_sample_loc_type_bottom_field, 6);
236 return 0;
237}
238
239static int FUNC(vui_parameters) (CodedBitstreamContext *ctx, RWContext *rw,
240 H266RawVUI *current,
241 uint8_t chroma_format_idc)
242{
243 int err;
244
245 flag(vui_progressive_source_flag);
246 flag(vui_interlaced_source_flag);
247 flag(vui_non_packed_constraint_flag);
248 flag(vui_non_projected_constraint_flag);
249 flag(vui_aspect_ratio_info_present_flag);
250 if (current->vui_aspect_ratio_info_present_flag) {
251 flag(vui_aspect_ratio_constant_flag);
252 ub(8, vui_aspect_ratio_idc);
253 if (current->vui_aspect_ratio_idc == 255) {
254 ub(16, vui_sar_width);
255 ub(16, vui_sar_height);
256 }
257 } else {
258 infer(vui_aspect_ratio_constant_flag, 0);
259 infer(vui_aspect_ratio_idc, 0);
260 }
261 flag(vui_overscan_info_present_flag);
262 if (current->vui_overscan_info_present_flag)
263 flag(vui_overscan_appropriate_flag);
264 flag(vui_colour_description_present_flag);
265 if (current->vui_colour_description_present_flag) {
266 ub(8, vui_colour_primaries);
267 av_log(ctx->log_ctx, AV_LOG_DEBUG, "vui_colour_primaries == %d \n",
268 current->vui_colour_primaries);
269 ub(8, vui_transfer_characteristics);
270 av_log(ctx->log_ctx, AV_LOG_DEBUG,
271 "vui_transfer_characteristics == %d \n",
272 current->vui_transfer_characteristics);
273 ub(8, vui_matrix_coeffs);
274 av_log(ctx->log_ctx, AV_LOG_DEBUG, "vui_matrix_coeffs == %d \n",
275 current->vui_matrix_coeffs);
276 flag(vui_full_range_flag);
277 } else {
278 infer(vui_colour_primaries, 2);
279 infer(vui_transfer_characteristics, 2);
280 infer(vui_matrix_coeffs, 2);
281 infer(vui_full_range_flag, 0);
282 }
283 flag(vui_chroma_loc_info_present_flag);
284 if (chroma_format_idc != 1 && current->vui_chroma_loc_info_present_flag) {
285 av_log(ctx->log_ctx, AV_LOG_ERROR, "chroma_format_idc == %d,"
286 "vui_chroma_loc_info_present_flag can't not be true",
287 chroma_format_idc);
288 return AVERROR_INVALIDDATA;
289 }
290 if (current->vui_chroma_loc_info_present_flag) {
291 if (current->vui_progressive_source_flag &&
292 !current->vui_interlaced_source_flag) {
293 ue(vui_chroma_sample_loc_type_frame, 0, 6);
294 } else {
295 ue(vui_chroma_sample_loc_type_top_field, 0, 6);
296 ue(vui_chroma_sample_loc_type_bottom_field, 0, 6);
297 }
298 } else {
299 if (chroma_format_idc == 1) {
300 infer(vui_chroma_sample_loc_type_frame, 6);
301 infer(vui_chroma_sample_loc_type_top_field,
302 current->vui_chroma_sample_loc_type_frame);
303 infer(vui_chroma_sample_loc_type_bottom_field,
304 current->vui_chroma_sample_loc_type_frame);
305 }
306 }
307 return 0;
308}
309
310static int FUNC(payload_extension) (CodedBitstreamContext *ctx, RWContext *rw,
311 H266RawExtensionData *current,
312 uint32_t payload_size, int cur_pos)
313{
314 int err;
315 size_t byte_length, k;
316
317#ifdef READ
318 GetBitContext tmp;
319 int bits_left, payload_zero_bits;
320
321 if (!ff_cbs_h2645_payload_extension_present(rw, payload_size, cur_pos))
322 return 0;
323
324 bits_left = 8 * payload_size - cur_pos;
325 tmp = *rw;
326 if (bits_left > 8)
327 skip_bits_long(&tmp, bits_left - 8);
328 payload_zero_bits = get_bits(&tmp, FFMIN(bits_left, 8));
329 if (!payload_zero_bits)
330 return AVERROR_INVALIDDATA;
331 payload_zero_bits = ff_ctz(payload_zero_bits);
332 current->bit_length = bits_left - payload_zero_bits - 1;
333 allocate(current->data, (current->bit_length + 7) / 8);
334#endif
335
336 byte_length = (current->bit_length + 7) / 8;
337 for (k = 0; k < byte_length; k++) {
338 int length = FFMIN(current->bit_length - k * 8, 8);
339 xu(length, reserved_payload_extension_data, current->data[k],
340 0, MAX_UINT_BITS(length), 0);
341 }
342
343 return 0;
344}
345
346static int FUNC(vui_payload) (CodedBitstreamContext *ctx, RWContext *rw,
347 H266RawVUI *current, uint16_t vui_payload_size,
348 uint8_t chroma_format_idc)
349{
350 int err;
351 int start_position, current_position;
352
353 start_position = bit_position(rw);
354 CHECK(FUNC(vui_parameters) (ctx, rw, current, chroma_format_idc));
355 current_position = bit_position(rw) - start_position;
356
357 if (current_position < 8 * vui_payload_size) {
358 CHECK(FUNC(payload_extension) (ctx, rw, &current->extension_data,
359 vui_payload_size, current_position));
360 fixed(1, vui_payload_bit_equal_to_one, 1);
361 while (byte_alignment(rw) != 0)
362 fixed(1, vui_payload_bit_equal_to_zero, 0);
363 }
364 return 0;
365}
366
367static int FUNC(extension_data) (CodedBitstreamContext *ctx, RWContext *rw,
368 H266RawExtensionData *current)
369{
370 int err;
371 size_t k;
372#ifdef READ
373 GetBitContext start;
374 uint8_t bit;
375 start = *rw;
376 for (k = 0; ff_cbs_h2645_read_more_rbsp_data(rw); k++)
377 skip_bits(rw, 1);
378 current->bit_length = k;
379 if (k > 0) {
380 *rw = start;
381 allocate(current->data, (current->bit_length + 7) / 8);
382 for (k = 0; k < current->bit_length; k++) {
383 xu(1, extension_data, bit, 0, 1, 0);
384 current->data[k / 8] |= bit << (7 - k % 8);
385 }
386 }
387#else
388 for (k = 0; k < current->bit_length; k++)
389 xu(1, extension_data, current->data[k / 8] >> (7 - k % 8) & 1, 0, 1, 0);
390#endif
391 return 0;
392}
393
394static int FUNC(dpb_parameters) (CodedBitstreamContext *ctx, RWContext *rw,
395 H266DpbParameters *current,
396 uint8_t max_sublayers_minus1,
397 uint8_t sublayer_info_flag)
398{
399 int err, i;
400 for (i = (sublayer_info_flag ? 0 : max_sublayers_minus1);
401 i <= max_sublayers_minus1; i++) {
402 ues(dpb_max_dec_pic_buffering_minus1[i], 0, VVC_MAX_DPB_SIZE - 1, 1, i);
403 ues(dpb_max_num_reorder_pics[i],
404 0, current->dpb_max_dec_pic_buffering_minus1[i], 1, i);
405 ues(dpb_max_latency_increase_plus1[i], 0, UINT32_MAX - 1, 1, i);
406 }
407 return 0;
408}
409
410static int FUNC(ref_pic_list_struct) (CodedBitstreamContext *ctx,
411 RWContext *rw,
412 H266RefPicListStruct *current,
413 uint8_t list_idx, uint8_t rpls_idx,
414 const H266RawSPS *sps)
415{
416 CodedBitstreamH266Context *h266 = ctx->priv_data;
417 int err, i, j, general_layer_idx = -1, num_direct_ref_layers = 0;
418 const H266RawVPS *vps = h266->vps[sps->sps_video_parameter_set_id];
419
420 if (!vps) {
421 av_log(ctx->log_ctx, AV_LOG_ERROR,
422 "VPS id %d not available.\n", sps->sps_video_parameter_set_id);
423 return AVERROR_INVALIDDATA;
424 }
425 //7.4.3.3 (29)
426 for (i = 0; i <= vps->vps_max_layers_minus1; i++) {
427 if (sps->nal_unit_header.nuh_layer_id == vps->vps_layer_id[i]) {
428 general_layer_idx = i;
429 break;
430 }
431 }
432 if (general_layer_idx < 0) {
433 av_log(ctx->log_ctx, AV_LOG_ERROR, "vps_layer_id %d not available.\n",
434 sps->nal_unit_header.nuh_layer_id);
435 return AVERROR_INVALIDDATA;
436 }
437 //7.4.3.3 (28)
438 for (j = 0; j <= vps->vps_max_layers_minus1; j++) {
439 if (vps->vps_direct_ref_layer_flag[general_layer_idx][j])
440 num_direct_ref_layers++;
441 }
442
443 ue(num_ref_entries, 0, VVC_MAX_REF_ENTRIES);
444 if (sps->sps_long_term_ref_pics_flag &&
445 rpls_idx < sps->sps_num_ref_pic_lists[list_idx] &&
446 current->num_ref_entries > 0)
447 flag(ltrp_in_header_flag);
448 if (sps->sps_long_term_ref_pics_flag &&
449 rpls_idx == sps->sps_num_ref_pic_lists[list_idx])
450 infer(ltrp_in_header_flag, 1);
451 for (i = 0, j = 0; i < current->num_ref_entries; i++) {
452 if (sps->sps_inter_layer_prediction_enabled_flag)
453 flags(inter_layer_ref_pic_flag[i], 1, i);
454 else
455 infer(inter_layer_ref_pic_flag[i], 0);
456
457 if (!current->inter_layer_ref_pic_flag[i]) {
458 if (sps->sps_long_term_ref_pics_flag)
459 flags(st_ref_pic_flag[i], 1, i);
460 else
461 infer(st_ref_pic_flag[i], 1);
462 if (current->st_ref_pic_flag[i]) {
463 int abs_delta_poc_st;
464 ues(abs_delta_poc_st[i], 0, MAX_UINT_BITS(15), 1, i);
465 if ((sps->sps_weighted_pred_flag ||
466 sps->sps_weighted_bipred_flag) && i != 0)
467 abs_delta_poc_st = current->abs_delta_poc_st[i];
468 else
469 abs_delta_poc_st = current->abs_delta_poc_st[i] + 1;
470 if (abs_delta_poc_st > 0)
471 flags(strp_entry_sign_flag[i], 1, i);
472 } else {
473 if (!current->ltrp_in_header_flag) {
474 uint8_t bits = sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4;
475 ubs(bits, rpls_poc_lsb_lt[j], 1, j);
476 j++;
477 }
478 }
479 } else {
480 if (num_direct_ref_layers == 0) {
481 av_log(ctx->log_ctx, AV_LOG_ERROR,
482 "num_direct_ref_layers needs > 0.\n");
483 return AVERROR_INVALIDDATA;
484 }
485 ues(ilrp_idx[i], 0, num_direct_ref_layers - 1, 1, i);
486 }
487 }
488 return 0;
489}
490
491static int FUNC(ref_pic_lists) (CodedBitstreamContext *ctx, RWContext *rw,
492 const H266RawSPS *sps, const H266RawPPS *pps,
493 H266RefPicLists *current) {
494 const H266RefPicListStruct * ref_list;
495 int err, i, j, num_ltrp_entries;
496 for (i = 0; i < 2; i++) {
497 if (sps->sps_num_ref_pic_lists[i] > 0 &&
498 (i == 0 || (i == 1 && pps->pps_rpl1_idx_present_flag))) {
499 flags(rpl_sps_flag[i], 1, i);
500 } else {
501 if (sps->sps_num_ref_pic_lists[i] == 0) {
502 infer(rpl_sps_flag[i], 0);
503 } else {
504 if (!pps->pps_rpl1_idx_present_flag && i == 1)
505 infer(rpl_sps_flag[1], current->rpl_sps_flag[0]);
506 }
507 }
508 if (current->rpl_sps_flag[i]) {
509 if (sps->sps_num_ref_pic_lists[i] > 1 &&
510 (i == 0 || (i == 1 && pps->pps_rpl1_idx_present_flag))) {
511 uint8_t bits = av_ceil_log2(sps->sps_num_ref_pic_lists[i]);
512 us(bits, rpl_idx[i], 0, sps->sps_num_ref_pic_lists[i] - 1, 1, i);
513 } else if (sps->sps_num_ref_pic_lists[i] == 1) {
514 infer(rpl_idx[i], 0);
515 } else if (i == 1 && !pps->pps_rpl1_idx_present_flag) {
516 infer(rpl_idx[1], current->rpl_idx[0]);
517 } else {
518 //how to handle this? or never happpend?
519 av_log(ctx->log_ctx, AV_LOG_ERROR,
520 "can't infer the rpl_idx[i]\n");
521 return AVERROR_PATCHWELCOME;
522 }
523 memcpy(&current->rpl_ref_list[i],
524 &sps->sps_ref_pic_list_struct[i][current->rpl_idx[i]],
525 sizeof(current->rpl_ref_list[i]));
526 } else {
527 CHECK(FUNC(ref_pic_list_struct) (ctx, rw, &current->rpl_ref_list[i],
528 i, sps->sps_num_ref_pic_lists[i],
529 sps));
530 }
531 ref_list = &current->rpl_ref_list[i];
532
533 num_ltrp_entries = 0;
534 for (int k = 0; k < ref_list->num_ref_entries; k++) {
535 if (!ref_list->inter_layer_ref_pic_flag[k]) {
536 if (!ref_list->st_ref_pic_flag[k]) {
537 num_ltrp_entries++;
538 }
539 }
540 }
541
542 for (j = 0; j < num_ltrp_entries; j++) {
543 if (ref_list->ltrp_in_header_flag) {
544 ubs(sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4,
545 poc_lsb_lt[i][j], 2, i, j);
546 }
547 flags(delta_poc_msb_cycle_present_flag[i][j], 2, i, j);
548 if (current->delta_poc_msb_cycle_present_flag[i][j]) {
549 uint32_t max =
550 1 << (32 - sps->sps_log2_max_pic_order_cnt_lsb_minus4 - 4);
551 ues(delta_poc_msb_cycle_lt[i][j], 0, max, 2, i, j);
552 }
553 }
554 }
555 return 0;
556}
557
558static int FUNC(general_timing_hrd_parameters)(CodedBitstreamContext *ctx,
559 RWContext *rw,
560 H266RawGeneralTimingHrdParameters *current)
561{
562 int err;
563 ub(32, num_units_in_tick);
564 u(32, time_scale, 1, MAX_UINT_BITS(32));
565 flag(general_nal_hrd_params_present_flag);
566 flag(general_vcl_hrd_params_present_flag);
567
568 if (current->general_nal_hrd_params_present_flag ||
569 current->general_vcl_hrd_params_present_flag) {
570 flag(general_same_pic_timing_in_all_ols_flag);
571 flag(general_du_hrd_params_present_flag);
572 if (current->general_du_hrd_params_present_flag)
573 ub(8, tick_divisor_minus2);
574 ub(4, bit_rate_scale);
575 ub(4, cpb_size_scale);
576 if (current->general_du_hrd_params_present_flag)
577 ub(4, cpb_size_du_scale);
578 ue(hrd_cpb_cnt_minus1, 0, 31);
579 } else {
580 //infer general_same_pic_timing_in_all_ols_flag?
581 infer(general_du_hrd_params_present_flag, 0);
582 }
583 return 0;
584}
585
586static int FUNC(sublayer_hrd_parameters) (CodedBitstreamContext *ctx,
587 RWContext *rw,
588 H266RawSubLayerHRDParameters *current,
589 int sublayer_id,
590 const H266RawGeneralTimingHrdParameters *general)
591{
592 int err, i;
593 for (i = 0; i <= general->hrd_cpb_cnt_minus1; i++) {
594 ues(bit_rate_value_minus1[sublayer_id][i], 0, UINT32_MAX - 1, 2,
595 sublayer_id, i);
596 ues(cpb_size_value_minus1[sublayer_id][i], 0, UINT32_MAX - 1, 2,
597 sublayer_id, i);
598 if (general->general_du_hrd_params_present_flag) {
599 ues(cpb_size_du_value_minus1[sublayer_id][i],
600 0, UINT32_MAX - 1, 2, sublayer_id, i);
601 ues(bit_rate_du_value_minus1[sublayer_id][i],
602 0, UINT32_MAX - 1, 2, sublayer_id, i);
603 }
604 flags(cbr_flag[sublayer_id][i], 2, sublayer_id, i);
605 }
606 return 0;
607}
608
609static int FUNC(ols_timing_hrd_parameters) (CodedBitstreamContext *ctx,
610 RWContext *rw, H266RawOlsTimingHrdParameters *current,
611 uint8_t first_sublayer, uint8_t max_sublayers_minus1,
612 const H266RawGeneralTimingHrdParameters *general)
613{
614 int err, i;
615 for (i = first_sublayer; i <= max_sublayers_minus1; i++) {
616 flags(fixed_pic_rate_general_flag[i], 1, i);
617 if (!current->fixed_pic_rate_general_flag[i])
618 flags(fixed_pic_rate_within_cvs_flag[i], 1, i);
619 else
620 infer(fixed_pic_rate_within_cvs_flag[i], 1);
621 if (current->fixed_pic_rate_within_cvs_flag[i]) {
622 ues(elemental_duration_in_tc_minus1[i], 0, 2047, 1, i);
623 infer(low_delay_hrd_flag[i], 0);
624 } else if ((general->general_nal_hrd_params_present_flag ||
625 general->general_vcl_hrd_params_present_flag) &&
626 general->hrd_cpb_cnt_minus1 == 0) {
627 flags(low_delay_hrd_flag[i], 1, i);
628 } else {
629 infer(low_delay_hrd_flag[i], 0);
630 }
631 if (general->general_nal_hrd_params_present_flag)
632 CHECK(FUNC(sublayer_hrd_parameters) (ctx, rw,
633 &current->nal_sub_layer_hrd_parameters,
634 i, general));
635 if (general->general_vcl_hrd_params_present_flag)
636 CHECK(FUNC(sublayer_hrd_parameters) (ctx, rw,
637 &current->nal_sub_layer_hrd_parameters,
638 i, general));
639 }
640 return 0;
641}
642
643static int FUNC(opi)(CodedBitstreamContext *ctx, RWContext *rw,
644 H266RawOPI *current)
645{
646 int err;
647
648 HEADER("Operating point information");
649
650 CHECK(FUNC(nal_unit_header)(ctx, rw,
651 &current->nal_unit_header, VVC_OPI_NUT));
652
653 flag(opi_ols_info_present_flag);
654 flag(opi_htid_info_present_flag);
655
656 if(current->opi_ols_info_present_flag)
657 ue(opi_ols_idx, 0, VVC_MAX_TOTAL_NUM_OLSS - 1);
658
659 if(current->opi_htid_info_present_flag)
660 ub(3, opi_htid_plus1);
661
662 flag(opi_extension_flag);
663 if (current->opi_extension_flag)
664 CHECK(FUNC(extension_data) (ctx, rw, &current->extension_data));
665 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
666
667 return 0;
668}
669
670static int FUNC(dci)(CodedBitstreamContext *ctx, RWContext *rw,
671 H266RawDCI *current)
672{
673 int err, i;
674
675 HEADER("Decoding capability information");
676
677 CHECK(FUNC(nal_unit_header)(ctx, rw,
678 &current->nal_unit_header, VVC_DCI_NUT));
679
680 ub(4, dci_reserved_zero_4bits);
681 ub(4, dci_num_ptls_minus1);
682 for (i = 0; i <= current->dci_num_ptls_minus1; i++)
683 CHECK(FUNC(profile_tier_level)(ctx, rw,
684 current->dci_profile_tier_level + i, 1, 0));
685
686 flag(dci_extension_flag);
687 if (current->dci_extension_flag)
688 CHECK(FUNC(extension_data)(ctx, rw, &current->extension_data));
689 CHECK(FUNC(rbsp_trailing_bits)(ctx, rw));
690
691 return 0;
692}
693
694static int FUNC(vps) (CodedBitstreamContext *ctx, RWContext *rw,
695 H266RawVPS *current)
696{
697 int err, i, j, k;
698 uint16_t total_num_olss = 0;
699 uint8_t ols_mode_idc = 0;
700 uint16_t num_multi_layer_olss = 0;
701 uint8_t layer_included_in_ols_flag[VVC_MAX_TOTAL_NUM_OLSS][VVC_MAX_LAYERS];
702 uint8_t num_ref_layers[VVC_MAX_LAYERS];
703 uint8_t reference_layer_idx[VVC_MAX_LAYERS][VVC_MAX_LAYERS];
704
705 HEADER("Video Parameter Set");
706
707 CHECK(FUNC(nal_unit_header) (ctx, rw,
708 &current->nal_unit_header, VVC_VPS_NUT));
709
710 u(4, vps_video_parameter_set_id, 1, VVC_MAX_VPS_COUNT - 1);
711 ub(6, vps_max_layers_minus1);
712 u(3, vps_max_sublayers_minus1, 0, 6);
713 if (current->vps_max_layers_minus1 > 0
714 && current->vps_max_sublayers_minus1 > 0)
715 flag(vps_default_ptl_dpb_hrd_max_tid_flag);
716 else
717 infer(vps_default_ptl_dpb_hrd_max_tid_flag, 1);
718
719 if (current->vps_max_layers_minus1 > 0)
720 flag(vps_all_independent_layers_flag);
721 else
722 infer(vps_all_independent_layers_flag, 1);
723
724 for (i = 0; i <= current->vps_max_layers_minus1; i++) {
725 ubs(6, vps_layer_id[i], 1, i);
726 if (i > 0 && current->vps_layer_id[i] <= current->vps_layer_id[i - 1]) {
727 av_log(ctx->log_ctx, AV_LOG_ERROR,
728 "vps_layer_id[%d](%d) should > vps_layer_id[%d](%d).\n",
729 i, current->vps_layer_id[i], i - 1,
730 current->vps_layer_id[i - 1]);
731 return AVERROR_INVALIDDATA;
732 }
733 if (i > 0 && !current->vps_all_independent_layers_flag) {
734 flags(vps_independent_layer_flag[i], 1, i);
735 if (!current->vps_independent_layer_flag[i]) {
736 flags(vps_max_tid_ref_present_flag[i], 1, i);
737 for (j = 0; j < i; j++) {
738 flags(vps_direct_ref_layer_flag[i][j], 2, i, j);
739 if (current->vps_max_tid_ref_present_flag[i] &&
740 current->vps_direct_ref_layer_flag[i][j]) {
741 ubs(3, vps_max_tid_il_ref_pics_plus1[i][j], 2, i, j);
742 } else {
743 infer(vps_max_tid_il_ref_pics_plus1[i][j],
744 current->vps_max_sublayers_minus1 + 1);
745 }
746 }
747 } else {
748 for (j = 0; j < i; j++) {
749 infer(vps_direct_ref_layer_flag[i][j], 0);
750 }
751 }
752 } else {
753 infer(vps_independent_layer_flag[i], 1);
754 for (j = 0; j < i; j++) {
755 infer(vps_direct_ref_layer_flag[i][j], 0);
756 }
757 }
758 }
759
760 if (current->vps_max_layers_minus1 > 0) {
761 if (current->vps_all_independent_layers_flag)
762 flag(vps_each_layer_is_an_ols_flag);
763 else
764 infer(vps_each_layer_is_an_ols_flag, 0);
765 if (!current->vps_each_layer_is_an_ols_flag) {
766 if (!current->vps_all_independent_layers_flag)
767 ub(2, vps_ols_mode_idc);
768 else
769 infer(vps_ols_mode_idc, 2);
770 if (current->vps_ols_mode_idc == 2) {
771 ub(8, vps_num_output_layer_sets_minus2);
772 for (i = 1; i <= current->vps_num_output_layer_sets_minus2 + 1;
773 i++)
774 for (j = 0; j <= current->vps_max_layers_minus1; j++)
775 flags(vps_ols_output_layer_flag[i][j], 2, i, j);
776 }
777 ols_mode_idc = current->vps_ols_mode_idc;
778 } else {
779 ols_mode_idc = 4;
780 }
781 if (ols_mode_idc == 4 || ols_mode_idc == 0 || ols_mode_idc == 1)
782 total_num_olss = current->vps_max_layers_minus1 + 1;
783 else if (ols_mode_idc == 2)
784 total_num_olss = current->vps_num_output_layer_sets_minus2 + 2;
785 else
786 av_log(ctx->log_ctx, AV_LOG_ERROR,
787 "ols_mode_idc == 3, patch welcome");
788 u(8, vps_num_ptls_minus1, 0, total_num_olss - 1);
789 } else {
790 infer(vps_each_layer_is_an_ols_flag, 1);
791 infer(vps_num_ptls_minus1, 0);
792 }
793
794 for (i = 0; i <= current->vps_num_ptls_minus1; i++) {
795 if (i > 0)
796 flags(vps_pt_present_flag[i], 1, i);
797 else
798 infer(vps_pt_present_flag[i], 1);
799
800 if (!current->vps_default_ptl_dpb_hrd_max_tid_flag)
801 us(3, vps_ptl_max_tid[i], 0, current->vps_max_sublayers_minus1, 1, i);
802 else
803 infer(vps_ptl_max_tid[i], current->vps_max_sublayers_minus1);
804 }
805 while (byte_alignment(rw) != 0)
806 fixed(1, vps_ptl_alignment_zero_bit, 0);
807
808 {
809 //calc NumMultiLayerOlss
810 int m;
811 uint8_t dependency_flag[VVC_MAX_LAYERS][VVC_MAX_LAYERS];
812 uint16_t num_output_layers_in_ols[VVC_MAX_TOTAL_NUM_OLSS];
813 uint8_t num_sub_layers_in_layer_in_ols[VVC_MAX_TOTAL_NUM_OLSS][VVC_MAX_TOTAL_NUM_OLSS];
814 uint8_t output_layer_idx[VVC_MAX_TOTAL_NUM_OLSS][VVC_MAX_LAYERS];
815
816 //7.4.3.3 vps_direct_ref_layer_flag section
817 for (i = 0; i <= current->vps_max_layers_minus1; i++) {
818 for (j = 0; j <= current->vps_max_layers_minus1; j++) {
819 dependency_flag[i][j] = current->vps_direct_ref_layer_flag[i][j];
820 for (k = 0; k < i; k++) {
821 if (current->vps_direct_ref_layer_flag[i][k] &&
822 dependency_flag[k][j])
823 dependency_flag[i][j] = 1;
824 }
825 }
826 }
827 for (i = 0; i <= current->vps_max_layers_minus1; i++) {
828 int r;
829 for (j = 0, r = 0; j <= current->vps_max_layers_minus1; j++) {
830 if (dependency_flag[i][j])
831 reference_layer_idx[i][r++] = j;
832 }
833 num_ref_layers[i] = r;
834 }
835
836 //7.4.3.3 vps_ols_output_layer_flag section
837 num_output_layers_in_ols[0] = 1;
838 num_sub_layers_in_layer_in_ols[0][0] =
839 current->vps_ptl_max_tid[current->vps_ols_ptl_idx[0]] + 1;
840 for (i = 1; i < total_num_olss; i++) {
841 if (ols_mode_idc == 4 || ols_mode_idc == 0) {
842 num_output_layers_in_ols[i] = 1;
843 if (current->vps_each_layer_is_an_ols_flag) {
844 num_sub_layers_in_layer_in_ols[i][0] =
845 current->vps_ptl_max_tid[current->vps_ols_ptl_idx[i]] + 1;
846 } else {
847 num_sub_layers_in_layer_in_ols[i][i] =
848 current->vps_ptl_max_tid[current->vps_ols_ptl_idx[i]] + 1;
849 for (k = i - 1; k >= 0; k--) {
850 num_sub_layers_in_layer_in_ols[i][k] = 0;
851 for (m = k + 1; m <= i; m++) {
852 uint8_t max_sublayer_needed =
853 FFMIN(num_sub_layers_in_layer_in_ols[i][m],
854 current->vps_max_tid_il_ref_pics_plus1[m][k]);
855 if (current->vps_direct_ref_layer_flag[m][k] &&
856 num_sub_layers_in_layer_in_ols[i][k] < max_sublayer_needed)
857 num_sub_layers_in_layer_in_ols[i][k] = max_sublayer_needed;
858 }
859 }
860 }
861 } else if (current->vps_ols_mode_idc == 1) {
862 num_output_layers_in_ols[i] = i + 1;
863 for (j = 0; j < num_output_layers_in_ols[i]; j++) {
864 num_sub_layers_in_layer_in_ols[i][j] =
865 current->vps_ptl_max_tid[current->vps_ols_ptl_idx[i]] + 1;
866 }
867 } else if (current->vps_ols_mode_idc == 2) {
868 uint8_t highest_included_layer = 0;
869 for (j = 0; j <= current->vps_max_layers_minus1; j++) {
870 layer_included_in_ols_flag[i][j] = 0;
871 num_sub_layers_in_layer_in_ols[i][j] = 0;
872 }
873 for (k = 0, j = 0; k <= current->vps_max_layers_minus1; k++) {
874 if (current->vps_ols_output_layer_flag[i][k]) {
875 layer_included_in_ols_flag[i][k] = 1;
876 highest_included_layer = k;
877 output_layer_idx[i][j] = k;
878 num_sub_layers_in_layer_in_ols[i][k] =
879 current->vps_ptl_max_tid[current->
880 vps_ols_ptl_idx[i]] + 1;
881 j++;
882 }
883 }
884 num_output_layers_in_ols[i] = j;
885 for (j = 0; j < num_output_layers_in_ols[i]; j++) {
886 int idx = output_layer_idx[i][j];
887 for (k = 0; k < num_ref_layers[idx]; k++) {
888 if (!layer_included_in_ols_flag[i][reference_layer_idx[idx][k]])
889 layer_included_in_ols_flag[i][reference_layer_idx[idx][k]] = 1;
890 }
891 }
892 for (k = highest_included_layer - 1; k >= 0; k--) {
893 if (layer_included_in_ols_flag[i][k] &&
894 !current->vps_ols_output_layer_flag[i][k]) {
895 for (m = k + 1; m <= highest_included_layer; m++) {
896 uint8_t max_sublayer_needed =
897 FFMIN(num_sub_layers_in_layer_in_ols[i][m],
898 current->vps_max_tid_il_ref_pics_plus1[m][k]);
899 if (current->vps_direct_ref_layer_flag[m][k] &&
900 layer_included_in_ols_flag[i][m] &&
901 num_sub_layers_in_layer_in_ols[i][k] <
902 max_sublayer_needed)
903 num_sub_layers_in_layer_in_ols[i][k] =
904 max_sublayer_needed;
905 }
906 }
907 }
908 }
909 if (!num_output_layers_in_ols[i])
910 return AVERROR_INVALIDDATA;
911 }
912 for (i = 1; i < total_num_olss; i++) {
913 int num_layers_in_ols = 0;
914 if (current->vps_each_layer_is_an_ols_flag) {
915 num_layers_in_ols = 1;
916 } else if (current->vps_ols_mode_idc == 0 ||
917 current->vps_ols_mode_idc == 1) {
918 num_layers_in_ols = i + 1;
919 } else if (current->vps_ols_mode_idc == 2) {
920 for (k = 0, j = 0; k <= current->vps_max_layers_minus1; k++)
921 if (layer_included_in_ols_flag[i][k])
922 j++;
923 num_layers_in_ols = j;
924 }
925 if (num_layers_in_ols > 1) {
926 num_multi_layer_olss++;
927 }
928 }
929 if (!current->vps_each_layer_is_an_ols_flag && num_multi_layer_olss == 0)
930 return AVERROR_INVALIDDATA;
931 }
932
933 allocate(current->vps_profile_tier_level,
934 (current->vps_num_ptls_minus1 + 1) *
935 sizeof(*current->vps_profile_tier_level));
936 for (i = 0; i <= current->vps_num_ptls_minus1; i++) {
937 CHECK(FUNC(profile_tier_level) (ctx, rw,
938 current->vps_profile_tier_level + i,
939 current->vps_pt_present_flag[i],
940 current->vps_ptl_max_tid[i]));
941 }
942 for (i = 0; i < total_num_olss; i++) {
943 if (current->vps_num_ptls_minus1 > 0 &&
944 current->vps_num_ptls_minus1 + 1 != total_num_olss) {
945 us(8, vps_ols_ptl_idx[i], 0, current->vps_num_ptls_minus1, 1, i);
946 } else if (current->vps_num_ptls_minus1 == 0) {
947 infer(vps_ols_ptl_idx[i], 0);
948 } else {
949 infer(vps_ols_ptl_idx[i], i);
950 }
951 }
952
953 if (!current->vps_each_layer_is_an_ols_flag) {
954 uint16_t vps_num_dpb_params;
955 ue(vps_num_dpb_params_minus1, 0, num_multi_layer_olss - 1);
956 if (current->vps_each_layer_is_an_ols_flag)
957 vps_num_dpb_params = 0;
958 else
959 vps_num_dpb_params = current->vps_num_dpb_params_minus1 + 1;
960
961 if (current->vps_max_sublayers_minus1 > 0)
962 flag(vps_sublayer_dpb_params_present_flag);
963 else
964 infer(vps_sublayer_dpb_params_present_flag, 0);
965
966 for (i = 0; i < vps_num_dpb_params; i++) {
967 if (!current->vps_default_ptl_dpb_hrd_max_tid_flag)
968 us(3, vps_dpb_max_tid[i], 0, current->vps_max_sublayers_minus1,
969 1, i);
970 else
971 infer(vps_dpb_max_tid[i], current->vps_max_sublayers_minus1);
972 CHECK(FUNC(dpb_parameters) (ctx, rw, current->vps_dpb_params + i,
973 current->vps_dpb_max_tid[i],
974 current->
975 vps_sublayer_dpb_params_present_flag));
976 }
977 for (i = 0; i < num_multi_layer_olss; i++) {
978 ues(vps_ols_dpb_pic_width[i], 0, UINT16_MAX, 1, i);
979 ues(vps_ols_dpb_pic_height[i], 0, UINT16_MAX, 1, i);
980 ubs(2, vps_ols_dpb_chroma_format[i], 1, i);
981 ues(vps_ols_dpb_bitdepth_minus8[i], 0, 8, 1, i);
982 if (vps_num_dpb_params > 1
983 && vps_num_dpb_params != num_multi_layer_olss)
984 ues(vps_ols_dpb_params_idx[i], 0, vps_num_dpb_params - 1, 1, i);
985 else if (vps_num_dpb_params == 1)
986 infer(vps_ols_dpb_params_idx[i], 0);
987 else
988 infer(vps_ols_dpb_params_idx[i], i);
989 }
990 flag(vps_timing_hrd_params_present_flag);
991 if (current->vps_timing_hrd_params_present_flag) {
992 CHECK(FUNC(general_timing_hrd_parameters) (ctx, rw,
993 &current->
994 vps_general_timing_hrd_parameters));
995 if (current->vps_max_sublayers_minus1 > 0)
996 flag(vps_sublayer_cpb_params_present_flag);
997 else
998 infer(vps_sublayer_cpb_params_present_flag, 0);
999 ue(vps_num_ols_timing_hrd_params_minus1, 0,
1000 num_multi_layer_olss - 1);
1001 for (i = 0; i <= current->vps_num_ols_timing_hrd_params_minus1; i++) {
1002 uint8_t first_sublayer;
1003 if (!current->vps_default_ptl_dpb_hrd_max_tid_flag)
1004 us(3, vps_hrd_max_tid[i], 0,
1005 current->vps_max_sublayers_minus1, 1, i);
1006 else
1007 infer(vps_hrd_max_tid[i],
1008 current->vps_max_sublayers_minus1);
1009 first_sublayer = current->vps_sublayer_cpb_params_present_flag ?
1010 0 : current->vps_hrd_max_tid[i];
1011 CHECK(FUNC(ols_timing_hrd_parameters)
1012 (ctx, rw, &current->vps_ols_timing_hrd_parameters,
1013 first_sublayer, current->vps_max_sublayers_minus1,
1014 &current->vps_general_timing_hrd_parameters));
1015
1016 }
1017 if (current->vps_num_ols_timing_hrd_params_minus1 > 0 &&
1018 current->vps_num_ols_timing_hrd_params_minus1 + 1 !=
1019 num_multi_layer_olss) {
1020 for (i = 0; i < num_multi_layer_olss; i++) {
1021 ues(vps_ols_timing_hrd_idx[i], 0,
1022 current->vps_num_ols_timing_hrd_params_minus1, 1, i);
1023 }
1024 } else if (current->vps_num_ols_timing_hrd_params_minus1 == 0) {
1025 for (i = 0; i < num_multi_layer_olss; i++)
1026 infer(vps_ols_timing_hrd_idx[i], 0);
1027 } else {
1028 for (i = 0; i < num_multi_layer_olss; i++)
1029 infer(vps_ols_timing_hrd_idx[i], i);
1030 }
1031 }
1032 }
1033
1034 flag(vps_extension_flag);
1035 if (current->vps_extension_flag)
1036 CHECK(FUNC(extension_data) (ctx, rw, &current->extension_data));
1037 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
1038
1039 return 0;
1040}
1041
1042static int FUNC(sps_range_extension)(CodedBitstreamContext *ctx, RWContext *rw,
1043 H266RawSPS *current)
1044{
1045 int err;
1046
1047 flag(sps_extended_precision_flag);
1048 if (current->sps_transform_skip_enabled_flag)
1049 flag(sps_ts_residual_coding_rice_present_in_sh_flag);
1050 else
1051 infer(sps_ts_residual_coding_rice_present_in_sh_flag, 0);
1052 flag(sps_rrc_rice_extension_flag);
1053 flag(sps_persistent_rice_adaptation_enabled_flag);
1054 flag(sps_reverse_last_sig_coeff_enabled_flag);
1055
1056 return 0;
1057}
1058
1059static int FUNC(sps)(CodedBitstreamContext *ctx, RWContext *rw,
1060 H266RawSPS *current)
1061{
1062 CodedBitstreamH266Context *h266 = ctx->priv_data;
1063 int err, i, j, max_width_minus1, max_height_minus1;
1064 unsigned int ctb_log2_size_y, min_cb_log2_size_y,
1065 min_qt_log2_size_intra_y, min_qt_log2_size_inter_y,
1066 ctb_size_y, max_num_merge_cand, tmp_width_val, tmp_height_val;
1067 uint8_t qp_bd_offset, sub_width_c, sub_height_c;
1068
1069 static const uint8_t h266_sub_width_c[] = {
1070 1, 2, 2, 1
1071 };
1072 static const uint8_t h266_sub_height_c[] = {
1073 1, 2, 1, 1
1074 };
1075
1076 HEADER("Sequence Parameter Set");
1077
1078 CHECK(FUNC(nal_unit_header) (ctx, rw,
1079 &current->nal_unit_header, VVC_SPS_NUT));
1080
1081 ub(4, sps_seq_parameter_set_id);
1082 ub(4, sps_video_parameter_set_id);
1083 if (current->sps_video_parameter_set_id == 0 && !h266->vps[0]) {
1084 H266RawVPS *vps = av_refstruct_allocz(sizeof(*vps));
1085 if (!vps)
1086 return AVERROR(ENOMEM);
1087 vps->vps_max_layers_minus1 = 0;
1088 vps->vps_independent_layer_flag[0] = 1;
1089 vps->vps_layer_id[0] = current->nal_unit_header.nuh_layer_id;
1090 h266->vps[0] = vps;
1091 }
1092
1093 u(3, sps_max_sublayers_minus1, 0, VVC_MAX_SUBLAYERS - 1);
1094 u(2, sps_chroma_format_idc, 0, 3);
1095 sub_width_c = h266_sub_width_c[current->sps_chroma_format_idc];
1096 sub_height_c = h266_sub_height_c[current->sps_chroma_format_idc];
1097
1098 u(2, sps_log2_ctu_size_minus5, 0, 3);
1099 ctb_log2_size_y = current->sps_log2_ctu_size_minus5 + 5;
1100 ctb_size_y = 1 << ctb_log2_size_y;
1101
1102 flag(sps_ptl_dpb_hrd_params_present_flag);
1103 if (current->sps_ptl_dpb_hrd_params_present_flag) {
1104 CHECK(FUNC(profile_tier_level) (ctx, rw, &current->profile_tier_level,
1105 1, current->sps_max_sublayers_minus1));
1106 }
1107 flag(sps_gdr_enabled_flag);
1108 flag(sps_ref_pic_resampling_enabled_flag);
1109 if (current->sps_ref_pic_resampling_enabled_flag)
1110 flag(sps_res_change_in_clvs_allowed_flag);
1111 else
1112 infer(sps_res_change_in_clvs_allowed_flag, 0);
1113
1114 ue(sps_pic_width_max_in_luma_samples, 1, VVC_MAX_WIDTH);
1115 ue(sps_pic_height_max_in_luma_samples, 1, VVC_MAX_HEIGHT);
1116
1117 flag(sps_conformance_window_flag);
1118 if (current->sps_conformance_window_flag) {
1119 uint16_t width = current->sps_pic_width_max_in_luma_samples / sub_width_c;
1120 uint16_t height = current->sps_pic_height_max_in_luma_samples / sub_height_c;
1121 ue(sps_conf_win_left_offset, 0, width);
1122 ue(sps_conf_win_right_offset, 0, width - current->sps_conf_win_left_offset);
1123 ue(sps_conf_win_top_offset, 0, height);
1124 ue(sps_conf_win_bottom_offset, 0, height - current->sps_conf_win_top_offset);
1125 } else {
1126 infer(sps_conf_win_left_offset, 0);
1127 infer(sps_conf_win_right_offset, 0);
1128 infer(sps_conf_win_top_offset, 0);
1129 infer(sps_conf_win_bottom_offset, 0);
1130 }
1131
1132 tmp_width_val = AV_CEIL_RSHIFT(current->sps_pic_width_max_in_luma_samples,
1133 ctb_log2_size_y);
1134 tmp_height_val = AV_CEIL_RSHIFT(current->sps_pic_height_max_in_luma_samples,
1135 ctb_log2_size_y);
1136 max_width_minus1 = tmp_width_val - 1;
1137 max_height_minus1 = tmp_height_val - 1;
1138
1139 u(1, sps_subpic_info_present_flag, 0, !current->sps_res_change_in_clvs_allowed_flag);
1140 if (current->sps_subpic_info_present_flag) {
1141 ue(sps_num_subpics_minus1, 0, VVC_MAX_SLICES - 1);
1142 if (current->sps_num_subpics_minus1 > 0) {
1143 flag(sps_independent_subpics_flag);
1144 flag(sps_subpic_same_size_flag);
1145 }
1146
1147 if (current->sps_num_subpics_minus1 > 0) {
1148 int wlen = av_ceil_log2(tmp_width_val);
1149 int hlen = av_ceil_log2(tmp_height_val);
1150 infer(sps_subpic_ctu_top_left_x[0], 0);
1151 infer(sps_subpic_ctu_top_left_y[0], 0);
1152 if (current->sps_pic_width_max_in_luma_samples > ctb_size_y)
1153 us(wlen, sps_subpic_width_minus1[0], 0, max_width_minus1, 1, 0);
1154 else
1155 infer(sps_subpic_width_minus1[0], max_width_minus1);
1156 if (current->sps_pic_height_max_in_luma_samples > ctb_size_y)
1157 us(hlen, sps_subpic_height_minus1[0], 0, max_height_minus1, 1, 0);
1158 else
1159 infer(sps_subpic_height_minus1[0], max_height_minus1);
1160 if (!current->sps_independent_subpics_flag) {
1161 flags(sps_subpic_treated_as_pic_flag[0], 1, 0);
1162 flags(sps_loop_filter_across_subpic_enabled_flag[0], 1, 0);
1163 } else {
1164 infer(sps_subpic_treated_as_pic_flag[0], 1);
1165 infer(sps_loop_filter_across_subpic_enabled_flag[0], 1);
1166 }
1167 for (i = 1; i <= current->sps_num_subpics_minus1; i++) {
1168 if (!current->sps_subpic_same_size_flag) {
1169 const int win_right_edge =
1170 current->sps_pic_width_max_in_luma_samples -
1171 current->sps_conf_win_right_offset * sub_width_c;
1172 const int win_bottom_edge =
1173 current->sps_pic_height_max_in_luma_samples -
1174 current->sps_conf_win_bottom_offset * sub_height_c;
1175 const int win_left_edge =
1176 current->sps_conf_win_left_offset * sub_width_c;
1177 const int win_top_edge =
1178 current->sps_conf_win_top_offset * sub_height_c;
1179 const int win_left_edge_ctus =
1180 AV_CEIL_RSHIFT(win_left_edge, ctb_log2_size_y);
1181 const int win_right_edge_ctus =
1182 AV_CEIL_RSHIFT(win_right_edge, ctb_log2_size_y);
1183 const int win_top_edge_ctus =
1184 AV_CEIL_RSHIFT(win_top_edge, ctb_log2_size_y);
1185 const int win_bottom_edge_ctus =
1186 AV_CEIL_RSHIFT(win_bottom_edge, ctb_log2_size_y);
1187 const int min_width =
1188 FFMAX(win_left_edge_ctus - current->sps_subpic_ctu_top_left_x[i], 0);
1189 const int min_height =
1190 FFMAX(win_top_edge_ctus - current->sps_subpic_ctu_top_left_y[i], 0);
1191
1192 if (current->sps_pic_width_max_in_luma_samples > ctb_size_y)
1193 us(wlen, sps_subpic_ctu_top_left_x[i], 0, win_right_edge_ctus - 1, 1, i);
1194 else
1195 infer(sps_subpic_ctu_top_left_x[i], 0);
1196
1197 if (current->sps_pic_height_max_in_luma_samples > ctb_size_y)
1198 us(hlen, sps_subpic_ctu_top_left_y[i], 0, win_bottom_edge_ctus - 1, 1, i);
1199 else
1200 infer(sps_subpic_ctu_top_left_y[i], 0);
1201
1202 max_width_minus1 = tmp_width_val - current->sps_subpic_ctu_top_left_x[i] - 1;
1203 max_height_minus1 = tmp_height_val - current->sps_subpic_ctu_top_left_y[i] - 1;
1204
1205 if (i < current->sps_num_subpics_minus1 &&
1206 current->sps_pic_width_max_in_luma_samples > ctb_size_y) {
1207 us(wlen, sps_subpic_width_minus1[i], min_width, max_width_minus1, 1, i);
1208 } else {
1209 infer(sps_subpic_width_minus1[i], max_width_minus1);
1210 }
1211
1212 if (i < current->sps_num_subpics_minus1 &&
1213 current->sps_pic_height_max_in_luma_samples > ctb_size_y) {
1214 us(hlen, sps_subpic_height_minus1[i], min_height, max_height_minus1, 1, i);
1215 } else {
1216 infer(sps_subpic_height_minus1[i], max_height_minus1);
1217 }
1218 } else {
1219 int num_subpic_cols = tmp_width_val /
1220 (current->sps_subpic_width_minus1[0] + 1);
1221 if (tmp_width_val % (current->sps_subpic_width_minus1[0] + 1) ||
1222 tmp_height_val % (current->sps_subpic_height_minus1[0] + 1) ||
1223 current->sps_num_subpics_minus1 !=
1224 (num_subpic_cols * tmp_height_val /
1225 (current->sps_subpic_height_minus1[0] + 1) - 1))
1226 return AVERROR_INVALIDDATA;
1227 infer(sps_subpic_ctu_top_left_x[i],
1228 (i % num_subpic_cols) *
1229 (current->sps_subpic_width_minus1[0] + 1));
1230 infer(sps_subpic_ctu_top_left_y[i],
1231 (i / num_subpic_cols) *
1232 (current->sps_subpic_height_minus1[0] + 1));
1233 infer(sps_subpic_width_minus1[i],
1234 current->sps_subpic_width_minus1[0]);
1235 infer(sps_subpic_height_minus1[i],
1236 current->sps_subpic_height_minus1[0]);
1237 }
1238 if (!current->sps_independent_subpics_flag) {
1239 flags(sps_subpic_treated_as_pic_flag[i], 1, i);
1240 flags(sps_loop_filter_across_subpic_enabled_flag[i], 1, i);
1241 } else {
1242 infer(sps_subpic_treated_as_pic_flag[i], 1);
1243 infer(sps_loop_filter_across_subpic_enabled_flag[i], 0);
1244 }
1245 }
1246 } else {
1247 infer(sps_subpic_ctu_top_left_x[0], 0);
1248 infer(sps_subpic_ctu_top_left_y[0], 0);
1249 infer(sps_subpic_width_minus1[0], max_width_minus1);
1250 infer(sps_subpic_height_minus1[0], max_height_minus1);
1251 }
1252 ue(sps_subpic_id_len_minus1, 0, 15);
1253 if ((1 << (current->sps_subpic_id_len_minus1 + 1)) <
1254 current->sps_num_subpics_minus1 + 1) {
1255 av_log(ctx->log_ctx, AV_LOG_ERROR,
1256 "sps_subpic_id_len_minus1(%d) is too small\n",
1257 current->sps_subpic_id_len_minus1);
1258 return AVERROR_INVALIDDATA;
1259 }
1260 flag(sps_subpic_id_mapping_explicitly_signalled_flag);
1261 if (current->sps_subpic_id_mapping_explicitly_signalled_flag) {
1262 flag(sps_subpic_id_mapping_present_flag);
1263 if (current->sps_subpic_id_mapping_present_flag) {
1264 for (i = 0; i <= current->sps_num_subpics_minus1; i++) {
1265 ubs(current->sps_subpic_id_len_minus1 + 1,
1266 sps_subpic_id[i], 1, i);
1267 }
1268 }
1269 }
1270 } else {
1271 infer(sps_num_subpics_minus1, 0);
1272 infer(sps_independent_subpics_flag, 1);
1273 infer(sps_subpic_same_size_flag, 0);
1274 infer(sps_subpic_id_mapping_explicitly_signalled_flag, 0);
1275 infer(sps_subpic_ctu_top_left_x[0], 0);
1276 infer(sps_subpic_ctu_top_left_y[0], 0);
1277 infer(sps_subpic_width_minus1[0], max_width_minus1);
1278 infer(sps_subpic_height_minus1[0], max_height_minus1);
1279 }
1280
1281
1282 ue(sps_bitdepth_minus8, 0, 8);
1283 qp_bd_offset = 6 * current->sps_bitdepth_minus8;
1284
1285 flag(sps_entropy_coding_sync_enabled_flag);
1286 flag(sps_entry_point_offsets_present_flag);
1287
1288 u(4, sps_log2_max_pic_order_cnt_lsb_minus4, 0, 12);
1289 flag(sps_poc_msb_cycle_flag);
1290 if (current->sps_poc_msb_cycle_flag)
1291 ue(sps_poc_msb_cycle_len_minus1,
1292 0, 32 - current->sps_log2_max_pic_order_cnt_lsb_minus4 - 5);
1293
1294 u(2, sps_num_extra_ph_bytes, 0, 2);
1295 for (i = 0; i < (current->sps_num_extra_ph_bytes * 8); i++) {
1296 flags(sps_extra_ph_bit_present_flag[i], 1, i);
1297 }
1298
1299 u(2, sps_num_extra_sh_bytes, 0, 2);
1300 for (i = 0; i < (current->sps_num_extra_sh_bytes * 8); i++) {
1301 flags(sps_extra_sh_bit_present_flag[i], 1, i);
1302 }
1303
1304 if (current->sps_ptl_dpb_hrd_params_present_flag) {
1305 if (current->sps_max_sublayers_minus1 > 0)
1306 flag(sps_sublayer_dpb_params_flag);
1307 else
1308 infer(sps_sublayer_dpb_params_flag, 0);
1309 CHECK(FUNC(dpb_parameters) (ctx, rw, &current->sps_dpb_params,
1310 current->sps_max_sublayers_minus1,
1311 current->sps_sublayer_dpb_params_flag));
1312 }
1313
1314 ue(sps_log2_min_luma_coding_block_size_minus2,
1315 0, FFMIN(4, current->sps_log2_ctu_size_minus5 + 3));
1316 min_cb_log2_size_y =
1317 current->sps_log2_min_luma_coding_block_size_minus2 + 2;
1318
1319 flag(sps_partition_constraints_override_enabled_flag);
1320
1321 ue(sps_log2_diff_min_qt_min_cb_intra_slice_luma,
1322 0, FFMIN(6, ctb_log2_size_y) - min_cb_log2_size_y);
1323 min_qt_log2_size_intra_y =
1324 current->sps_log2_diff_min_qt_min_cb_intra_slice_luma +
1325 min_cb_log2_size_y;
1326
1327 ue(sps_max_mtt_hierarchy_depth_intra_slice_luma,
1328 0, 2 * (ctb_log2_size_y - min_cb_log2_size_y));
1329
1330 if (current->sps_max_mtt_hierarchy_depth_intra_slice_luma != 0) {
1331 ue(sps_log2_diff_max_bt_min_qt_intra_slice_luma,
1332 0, ctb_log2_size_y - min_qt_log2_size_intra_y);
1333 ue(sps_log2_diff_max_tt_min_qt_intra_slice_luma,
1334 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_intra_y);
1335 } else {
1336 infer(sps_log2_diff_max_bt_min_qt_intra_slice_luma, 0);
1337 infer(sps_log2_diff_max_tt_min_qt_intra_slice_luma, 0);
1338 }
1339
1340 if (current->sps_chroma_format_idc != 0) {
1341 flag(sps_qtbtt_dual_tree_intra_flag);
1342 } else {
1343 infer(sps_qtbtt_dual_tree_intra_flag, 0);
1344 }
1345
1346 if (current->sps_qtbtt_dual_tree_intra_flag) {
1347 ue(sps_log2_diff_min_qt_min_cb_intra_slice_chroma,
1348 0, FFMIN(6, ctb_log2_size_y) - min_cb_log2_size_y);
1349 ue(sps_max_mtt_hierarchy_depth_intra_slice_chroma,
1350 0, 2 * (ctb_log2_size_y - min_cb_log2_size_y));
1351 if (current->sps_max_mtt_hierarchy_depth_intra_slice_chroma != 0) {
1352 unsigned int min_qt_log2_size_intra_c =
1353 current->sps_log2_diff_min_qt_min_cb_intra_slice_chroma +
1354 min_cb_log2_size_y;
1355 ue(sps_log2_diff_max_bt_min_qt_intra_slice_chroma,
1356 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_intra_c);
1357 ue(sps_log2_diff_max_tt_min_qt_intra_slice_chroma,
1358 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_intra_c);
1359 }
1360 } else {
1361 infer(sps_log2_diff_min_qt_min_cb_intra_slice_chroma, 0);
1362 infer(sps_max_mtt_hierarchy_depth_intra_slice_chroma, 0);
1363 }
1364 if (current->sps_max_mtt_hierarchy_depth_intra_slice_chroma == 0) {
1365 infer(sps_log2_diff_max_bt_min_qt_intra_slice_chroma, 0);
1366 infer(sps_log2_diff_max_tt_min_qt_intra_slice_chroma, 0);
1367 }
1368
1369 ue(sps_log2_diff_min_qt_min_cb_inter_slice,
1370 0, FFMIN(6, ctb_log2_size_y) - min_cb_log2_size_y);
1371 min_qt_log2_size_inter_y =
1372 current->sps_log2_diff_min_qt_min_cb_inter_slice + min_cb_log2_size_y;
1373
1374 ue(sps_max_mtt_hierarchy_depth_inter_slice,
1375 0, 2 * (ctb_log2_size_y - min_cb_log2_size_y));
1376 if (current->sps_max_mtt_hierarchy_depth_inter_slice != 0) {
1377 ue(sps_log2_diff_max_bt_min_qt_inter_slice,
1378 0, ctb_log2_size_y - min_qt_log2_size_inter_y);
1379 ue(sps_log2_diff_max_tt_min_qt_inter_slice,
1380 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_inter_y);
1381 } else {
1382 infer(sps_log2_diff_max_bt_min_qt_inter_slice, 0);
1383 infer(sps_log2_diff_max_tt_min_qt_inter_slice, 0);
1384 }
1385
1386 if (ctb_size_y > 32)
1387 flag(sps_max_luma_transform_size_64_flag);
1388 else
1389 infer(sps_max_luma_transform_size_64_flag, 0);
1390
1391 flag(sps_transform_skip_enabled_flag);
1392 if (current->sps_transform_skip_enabled_flag) {
1393 ue(sps_log2_transform_skip_max_size_minus2, 0, 3);
1394 flag(sps_bdpcm_enabled_flag);
1395 }
1396
1397 flag(sps_mts_enabled_flag);
1398 if (current->sps_mts_enabled_flag) {
1399 flag(sps_explicit_mts_intra_enabled_flag);
1400 flag(sps_explicit_mts_inter_enabled_flag);
1401 } else {
1402 infer(sps_explicit_mts_intra_enabled_flag, 0);
1403 infer(sps_explicit_mts_inter_enabled_flag, 0);
1404 }
1405
1406 flag(sps_lfnst_enabled_flag);
1407
1408 if (current->sps_chroma_format_idc != 0) {
1409 uint8_t num_qp_tables;
1410 flag(sps_joint_cbcr_enabled_flag);
1411 flag(sps_same_qp_table_for_chroma_flag);
1412 num_qp_tables = current->sps_same_qp_table_for_chroma_flag ?
1413 1 : (current->sps_joint_cbcr_enabled_flag ? 3 : 2);
1414 for (i = 0; i < num_qp_tables; i++) {
1415 ses(sps_qp_table_start_minus26[i], -26 - qp_bd_offset, 36, 1, i);
1416 ues(sps_num_points_in_qp_table_minus1[i],
1417 0, 36 - current->sps_qp_table_start_minus26[i], 1, i);
1418 for (j = 0; j <= current->sps_num_points_in_qp_table_minus1[i]; j++) {
1419 uint8_t max = MAX_UINT_BITS(8);
1420 ues(sps_delta_qp_in_val_minus1[i][j], 0, max, 2, i, j);
1421 ues(sps_delta_qp_diff_val[i][j], 0, max, 2, i, j);
1422 }
1423 }
1424 } else {
1425 infer(sps_joint_cbcr_enabled_flag, 0);
1426 infer(sps_same_qp_table_for_chroma_flag, 0);
1427 }
1428
1429 flag(sps_sao_enabled_flag);
1430 flag(sps_alf_enabled_flag);
1431 if (current->sps_alf_enabled_flag && current->sps_chroma_format_idc)
1432 flag(sps_ccalf_enabled_flag);
1433 else
1434 infer(sps_ccalf_enabled_flag, 0);
1435 flag(sps_lmcs_enabled_flag);
1436 flag(sps_weighted_pred_flag);
1437 flag(sps_weighted_bipred_flag);
1438 flag(sps_long_term_ref_pics_flag);
1439 if (current->sps_video_parameter_set_id > 0)
1440 flag(sps_inter_layer_prediction_enabled_flag);
1441 else
1442 infer(sps_inter_layer_prediction_enabled_flag, 0);
1443 flag(sps_idr_rpl_present_flag);
1444 flag(sps_rpl1_same_as_rpl0_flag);
1445
1446 for (i = 0; i < (current->sps_rpl1_same_as_rpl0_flag ? 1 : 2); i++) {
1447 ues(sps_num_ref_pic_lists[i], 0, VVC_MAX_REF_PIC_LISTS, 1, i);
1448 for (j = 0; j < current->sps_num_ref_pic_lists[i]; j++)
1449 CHECK(FUNC(ref_pic_list_struct) (ctx, rw,
1450 &current->
1451 sps_ref_pic_list_struct[i][j], i,
1452 j, current));
1453 }
1454
1455 if (current->sps_rpl1_same_as_rpl0_flag) {
1456 current->sps_num_ref_pic_lists[1] = current->sps_num_ref_pic_lists[0];
1457 for (j = 0; j < current->sps_num_ref_pic_lists[0]; j++)
1458 memcpy(&current->sps_ref_pic_list_struct[1][j],
1459 &current->sps_ref_pic_list_struct[0][j],
1460 sizeof(current->sps_ref_pic_list_struct[0][j]));
1461 }
1462
1463 flag(sps_ref_wraparound_enabled_flag);
1464
1465 flag(sps_temporal_mvp_enabled_flag);
1466 if (current->sps_temporal_mvp_enabled_flag)
1467 flag(sps_sbtmvp_enabled_flag);
1468 else
1469 infer(sps_sbtmvp_enabled_flag, 0);
1470
1471 flag(sps_amvr_enabled_flag);
1472 flag(sps_bdof_enabled_flag);
1473 if (current->sps_bdof_enabled_flag)
1474 flag(sps_bdof_control_present_in_ph_flag);
1475 else
1476 infer(sps_bdof_control_present_in_ph_flag, 0);
1477
1478 flag(sps_smvd_enabled_flag);
1479 flag(sps_dmvr_enabled_flag);
1480 if (current->sps_dmvr_enabled_flag)
1481 flag(sps_dmvr_control_present_in_ph_flag);
1482 else
1483 infer(sps_dmvr_control_present_in_ph_flag, 0);
1484
1485 flag(sps_mmvd_enabled_flag);
1486 if (current->sps_mmvd_enabled_flag)
1487 flag(sps_mmvd_fullpel_only_enabled_flag);
1488 else
1489 infer(sps_mmvd_fullpel_only_enabled_flag, 0);
1490
1491 ue(sps_six_minus_max_num_merge_cand, 0, 5);
1492 max_num_merge_cand = 6 - current->sps_six_minus_max_num_merge_cand;
1493
1494 flag(sps_sbt_enabled_flag);
1495
1496 flag(sps_affine_enabled_flag);
1497 if (current->sps_affine_enabled_flag) {
1498 ue(sps_five_minus_max_num_subblock_merge_cand,
1499 0, 5 - current->sps_sbtmvp_enabled_flag);
1500 flag(sps_6param_affine_enabled_flag);
1501 if (current->sps_amvr_enabled_flag)
1502 flag(sps_affine_amvr_enabled_flag);
1503 else
1504 infer(sps_affine_amvr_enabled_flag, 0);
1505 flag(sps_affine_prof_enabled_flag);
1506 if (current->sps_affine_prof_enabled_flag)
1507 flag(sps_prof_control_present_in_ph_flag);
1508 else
1509 infer(sps_prof_control_present_in_ph_flag, 0);
1510 } else {
1511 infer(sps_6param_affine_enabled_flag, 0);
1512 infer(sps_affine_amvr_enabled_flag, 0);
1513 infer(sps_affine_prof_enabled_flag, 0);
1514 infer(sps_prof_control_present_in_ph_flag, 0);
1515 }
1516
1517 flag(sps_bcw_enabled_flag);
1518 flag(sps_ciip_enabled_flag);
1519
1520 if (max_num_merge_cand >= 2) {
1521 flag(sps_gpm_enabled_flag);
1522 if (current->sps_gpm_enabled_flag && max_num_merge_cand >= 3)
1523 ue(sps_max_num_merge_cand_minus_max_num_gpm_cand,
1524 0, max_num_merge_cand - 2);
1525 } else {
1526 infer(sps_gpm_enabled_flag, 0);
1527 }
1528
1529 ue(sps_log2_parallel_merge_level_minus2, 0, ctb_log2_size_y - 2);
1530
1531 flag(sps_isp_enabled_flag);
1532 flag(sps_mrl_enabled_flag);
1533 flag(sps_mip_enabled_flag);
1534
1535 if (current->sps_chroma_format_idc != 0)
1536 flag(sps_cclm_enabled_flag);
1537 else
1538 infer(sps_cclm_enabled_flag, 0);
1539 if (current->sps_chroma_format_idc == 1) {
1540 flag(sps_chroma_horizontal_collocated_flag);
1541 flag(sps_chroma_vertical_collocated_flag);
1542 } else {
1543 infer(sps_chroma_horizontal_collocated_flag, 1);
1544 infer(sps_chroma_vertical_collocated_flag, 1);
1545 }
1546
1547 flag(sps_palette_enabled_flag);
1548 if (current->sps_chroma_format_idc == 3 &&
1549 !current->sps_max_luma_transform_size_64_flag)
1550 flag(sps_act_enabled_flag);
1551 else
1552 infer(sps_act_enabled_flag, 0);
1553 if (current->sps_transform_skip_enabled_flag ||
1554 current->sps_palette_enabled_flag)
1555 ue(sps_min_qp_prime_ts, 0, 8);
1556
1557 flag(sps_ibc_enabled_flag);
1558 if (current->sps_ibc_enabled_flag)
1559 ue(sps_six_minus_max_num_ibc_merge_cand, 0, 5);
1560
1561 flag(sps_ladf_enabled_flag);
1562 if (current->sps_ladf_enabled_flag) {
1563 ub(2, sps_num_ladf_intervals_minus2);
1564 se(sps_ladf_lowest_interval_qp_offset, -63, 63);
1565 for (i = 0; i < current->sps_num_ladf_intervals_minus2 + 1; i++) {
1566 ses(sps_ladf_qp_offset[i], -63, 63, 1, i);
1567 ues(sps_ladf_delta_threshold_minus1[i],
1568 0, (2 << (8 + current->sps_bitdepth_minus8)) - 3, 1, i);
1569 }
1570 }
1571
1572 flag(sps_explicit_scaling_list_enabled_flag);
1573 if (current->sps_lfnst_enabled_flag &&
1574 current->sps_explicit_scaling_list_enabled_flag)
1575 flag(sps_scaling_matrix_for_lfnst_disabled_flag);
1576
1577 if (current->sps_act_enabled_flag &&
1578 current->sps_explicit_scaling_list_enabled_flag)
1579 flag(sps_scaling_matrix_for_alternative_colour_space_disabled_flag);
1580 else
1581 infer(sps_scaling_matrix_for_alternative_colour_space_disabled_flag, 0);
1582 if (current->sps_scaling_matrix_for_alternative_colour_space_disabled_flag)
1583 flag(sps_scaling_matrix_designated_colour_space_flag);
1584
1585 flag(sps_dep_quant_enabled_flag);
1586 flag(sps_sign_data_hiding_enabled_flag);
1587
1588 flag(sps_virtual_boundaries_enabled_flag);
1589 if (current->sps_virtual_boundaries_enabled_flag) {
1590 flag(sps_virtual_boundaries_present_flag);
1591 if (current->sps_virtual_boundaries_present_flag) {
1592 ue(sps_num_ver_virtual_boundaries,
1593 0, current->sps_pic_width_max_in_luma_samples <= 8 ? 0 : VVC_MAX_VBS);
1594 for (i = 0; i < current->sps_num_ver_virtual_boundaries; i++)
1595 ues(sps_virtual_boundary_pos_x_minus1[i],
1596 0, (current->sps_pic_width_max_in_luma_samples + 7) / 8 - 2,
1597 1, i);
1598 ue(sps_num_hor_virtual_boundaries,
1599 0, current->sps_pic_height_max_in_luma_samples <= 8 ? 0 : VVC_MAX_VBS);
1600 for (i = 0; i < current->sps_num_hor_virtual_boundaries; i++)
1601 ues(sps_virtual_boundary_pos_y_minus1[i],
1602 0, (current->sps_pic_height_max_in_luma_samples + 7) /
1603 8 - 2, 1, i);
1604 }
1605 } else {
1606 infer(sps_virtual_boundaries_present_flag, 0);
1607 infer(sps_num_ver_virtual_boundaries, 0);
1608 infer(sps_num_hor_virtual_boundaries, 0);
1609 }
1610
1611 if (current->sps_ptl_dpb_hrd_params_present_flag) {
1612 flag(sps_timing_hrd_params_present_flag);
1613 if (current->sps_timing_hrd_params_present_flag) {
1614 uint8_t first_sublayer;
1615 CHECK(FUNC(general_timing_hrd_parameters) (ctx, rw,
1616 &current->sps_general_timing_hrd_parameters));
1617 if (current->sps_max_sublayers_minus1 > 0)
1618 flag(sps_sublayer_cpb_params_present_flag);
1619 else
1620 infer(sps_sublayer_cpb_params_present_flag, 0);
1621 first_sublayer = current->sps_sublayer_cpb_params_present_flag ?
1622 0 : current->sps_max_sublayers_minus1;
1623 CHECK(FUNC(ols_timing_hrd_parameters) (ctx, rw,
1624 &current->sps_ols_timing_hrd_parameters, first_sublayer,
1625 current->sps_max_sublayers_minus1,
1626 &current->sps_general_timing_hrd_parameters));
1627 }
1628 }
1629
1630 flag(sps_field_seq_flag);
1631 flag(sps_vui_parameters_present_flag);
1632 if (current->sps_vui_parameters_present_flag) {
1633 ue(sps_vui_payload_size_minus1, 0, 1023);
1634 while (byte_alignment(rw) != 0)
1635 fixed(1, sps_vui_alignment_zero_bit, 0);
1636 CHECK(FUNC(vui_payload) (ctx, rw, &current->vui,
1637 current->sps_vui_payload_size_minus1 + 1,
1638 current->sps_chroma_format_idc));
1639 } else {
1640 CHECK(FUNC(vui_parameters_default) (ctx, rw, &current->vui));
1641 }
1642
1643 flag(sps_extension_flag);
1644 if (current->sps_extension_flag) {
1645 flag(sps_range_extension_flag);
1646 ub(7, sps_extension_7bits);
1647
1648 if (current->sps_range_extension_flag) {
1649 if (current->sps_bitdepth_minus8 <= 10 - 8)
1650 return AVERROR_INVALIDDATA;
1651 CHECK(FUNC(sps_range_extension)(ctx, rw, current));
1652 } else {
1653 infer(sps_extended_precision_flag, 0);
1654 infer(sps_ts_residual_coding_rice_present_in_sh_flag, 0);
1655 infer(sps_rrc_rice_extension_flag, 0);
1656 infer(sps_persistent_rice_adaptation_enabled_flag, 0);
1657 infer(sps_reverse_last_sig_coeff_enabled_flag, 0);
1658 }
1659 } else {
1660 infer(sps_range_extension_flag, 0);
1661 infer(sps_extension_7bits, 0);
1662 infer(sps_extended_precision_flag, 0);
1663 infer(sps_ts_residual_coding_rice_present_in_sh_flag, 0);
1664 infer(sps_rrc_rice_extension_flag, 0);
1665 infer(sps_persistent_rice_adaptation_enabled_flag, 0);
1666 infer(sps_reverse_last_sig_coeff_enabled_flag, 0);
1667 }
1668
1669 if (current->sps_extension_7bits)
1670 CHECK(FUNC(extension_data)(ctx, rw, &current->extension_data));
1671
1672 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
1673
1674 return 0;
1675}
1676
1677static int FUNC(pps) (CodedBitstreamContext *ctx, RWContext *rw,
1678 H266RawPPS *current)
1679{
1680 CodedBitstreamH266Context *h266 = ctx->priv_data;
1681 const H266RawSPS *sps;
1682 int err, i;
1683 unsigned int min_cb_size_y, divisor, ctb_size_y,
1684 pic_width_in_ctbs_y, pic_height_in_ctbs_y;
1685 uint8_t sub_width_c, sub_height_c, qp_bd_offset;
1686
1687 static const uint8_t h266_sub_width_c[] = {
1688 1, 2, 2, 1
1689 };
1690 static const uint8_t h266_sub_height_c[] = {
1691 1, 2, 1, 1
1692 };
1693
1694 HEADER("Picture Parameter Set");
1695
1696 CHECK(FUNC(nal_unit_header) (ctx, rw,
1697 &current->nal_unit_header, VVC_PPS_NUT));
1698
1699 ub(6, pps_pic_parameter_set_id);
1700 ub(4, pps_seq_parameter_set_id);
1701 sps = h266->sps[current->pps_seq_parameter_set_id];
1702 if (!sps) {
1703 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
1704 current->pps_seq_parameter_set_id);
1705 return AVERROR_INVALIDDATA;
1706 }
1707
1708 flag(pps_mixed_nalu_types_in_pic_flag);
1709 ue(pps_pic_width_in_luma_samples,
1710 1, sps->sps_pic_width_max_in_luma_samples);
1711 ue(pps_pic_height_in_luma_samples,
1712 1, sps->sps_pic_height_max_in_luma_samples);
1713
1714 min_cb_size_y = 1 << (sps->sps_log2_min_luma_coding_block_size_minus2 + 2);
1715 divisor = FFMAX(min_cb_size_y, 8);
1716 if (current->pps_pic_width_in_luma_samples % divisor ||
1717 current->pps_pic_height_in_luma_samples % divisor) {
1718 av_log(ctx->log_ctx, AV_LOG_ERROR,
1719 "Invalid dimensions: %ux%u not divisible "
1720 "by %u, MinCbSizeY = %u.\n",
1721 current->pps_pic_width_in_luma_samples,
1722 current->pps_pic_height_in_luma_samples, divisor, min_cb_size_y);
1723 return AVERROR_INVALIDDATA;
1724 }
1725 if (!sps->sps_res_change_in_clvs_allowed_flag &&
1726 (current->pps_pic_width_in_luma_samples !=
1727 sps->sps_pic_width_max_in_luma_samples ||
1728 current->pps_pic_height_in_luma_samples !=
1729 sps->sps_pic_height_max_in_luma_samples)) {
1730 av_log(ctx->log_ctx, AV_LOG_ERROR,
1731 "Resolution change is not allowed, "
1732 "in max resolution (%ux%u) mismatched with pps(%ux%u).\n",
1733 sps->sps_pic_width_max_in_luma_samples,
1734 sps->sps_pic_height_max_in_luma_samples,
1735 current->pps_pic_width_in_luma_samples,
1736 current->pps_pic_height_in_luma_samples);
1737 return AVERROR_INVALIDDATA;
1738 }
1739
1740 ctb_size_y = 1 << (sps->sps_log2_ctu_size_minus5 + 5);
1741 if (sps->sps_ref_wraparound_enabled_flag) {
1742 if ((ctb_size_y / min_cb_size_y + 1) >
1743 (current->pps_pic_width_in_luma_samples / min_cb_size_y - 1)) {
1744 av_log(ctx->log_ctx, AV_LOG_ERROR,
1745 "Invalid width(%u), ctb_size_y = %u, min_cb_size_y = %u.\n",
1746 current->pps_pic_width_in_luma_samples,
1747 ctb_size_y, min_cb_size_y);
1748 return AVERROR_INVALIDDATA;
1749 }
1750 }
1751
1752 flag(pps_conformance_window_flag);
1753 if (current->pps_pic_width_in_luma_samples ==
1754 sps->sps_pic_width_max_in_luma_samples &&
1755 current->pps_pic_height_in_luma_samples ==
1756 sps->sps_pic_height_max_in_luma_samples &&
1757 current->pps_conformance_window_flag) {
1758 av_log(ctx->log_ctx, AV_LOG_ERROR,
1759 "Conformance window flag should not true.\n");
1760 return AVERROR_INVALIDDATA;
1761 }
1762
1763 sub_width_c = h266_sub_width_c[sps->sps_chroma_format_idc];
1764 sub_height_c = h266_sub_height_c[sps->sps_chroma_format_idc];
1765 if (current->pps_conformance_window_flag) {
1766 ue(pps_conf_win_left_offset, 0, current->pps_pic_width_in_luma_samples);
1767 ue(pps_conf_win_right_offset,
1768 0, current->pps_pic_width_in_luma_samples);
1769 ue(pps_conf_win_top_offset, 0, current->pps_pic_height_in_luma_samples);
1770 ue(pps_conf_win_bottom_offset,
1771 0, current->pps_pic_height_in_luma_samples);
1772 if (sub_width_c *
1773 (current->pps_conf_win_left_offset +
1774 current->pps_conf_win_right_offset) >=
1775 current->pps_pic_width_in_luma_samples ||
1776 sub_height_c *
1777 (current->pps_conf_win_top_offset +
1778 current->pps_conf_win_bottom_offset) >=
1779 current->pps_pic_height_in_luma_samples) {
1780 av_log(ctx->log_ctx, AV_LOG_ERROR,
1781 "Invalid pps conformance window: (%u, %u, %u, %u), "
1782 "resolution is %ux%u, sub wxh is %ux%u.\n",
1783 current->pps_conf_win_left_offset,
1784 current->pps_conf_win_right_offset,
1785 current->pps_conf_win_top_offset,
1786 current->pps_conf_win_bottom_offset,
1787 current->pps_pic_width_in_luma_samples,
1788 current->pps_pic_height_in_luma_samples,
1789 sub_width_c, sub_height_c);
1790 return AVERROR_INVALIDDATA;
1791 }
1792 } else {
1793 if (current->pps_pic_width_in_luma_samples ==
1794 sps->sps_pic_width_max_in_luma_samples &&
1795 current->pps_pic_height_in_luma_samples ==
1796 sps->sps_pic_height_max_in_luma_samples) {
1797 infer(pps_conf_win_left_offset, sps->sps_conf_win_left_offset);
1798 infer(pps_conf_win_right_offset, sps->sps_conf_win_right_offset);
1799 infer(pps_conf_win_top_offset, sps->sps_conf_win_top_offset);
1800 infer(pps_conf_win_bottom_offset, sps->sps_conf_win_bottom_offset);
1801 } else {
1802 infer(pps_conf_win_left_offset, 0);
1803 infer(pps_conf_win_right_offset, 0);
1804 infer(pps_conf_win_top_offset, 0);
1805 infer(pps_conf_win_bottom_offset, 0);
1806 }
1807
1808 }
1809
1810 flag(pps_scaling_window_explicit_signalling_flag);
1811 if (!sps->sps_ref_pic_resampling_enabled_flag &&
1812 current->pps_scaling_window_explicit_signalling_flag) {
1813 av_log(ctx->log_ctx, AV_LOG_ERROR,
1814 "Invalid data: sps_ref_pic_resampling_enabled_flag is false, "
1815 "but pps_scaling_window_explicit_signalling_flag is true.\n");
1816 return AVERROR_INVALIDDATA;
1817 }
1818 if (current->pps_scaling_window_explicit_signalling_flag) {
1819 se(pps_scaling_win_left_offset,
1820 -current->pps_pic_width_in_luma_samples * 15 / sub_width_c,
1821 current->pps_pic_width_in_luma_samples / sub_width_c);
1822 se(pps_scaling_win_right_offset,
1823 -current->pps_pic_width_in_luma_samples * 15 / sub_width_c,
1824 current->pps_pic_width_in_luma_samples / sub_width_c);
1825 se(pps_scaling_win_top_offset,
1826 -current->pps_pic_height_in_luma_samples * 15 / sub_height_c,
1827 current->pps_pic_height_in_luma_samples / sub_height_c);
1828 se(pps_scaling_win_bottom_offset,
1829 -current->pps_pic_height_in_luma_samples * 15 / sub_height_c,
1830 current->pps_pic_height_in_luma_samples / sub_height_c);
1831 } else {
1832 infer(pps_scaling_win_left_offset, current->pps_conf_win_left_offset);
1833 infer(pps_scaling_win_right_offset, current->pps_conf_win_right_offset);
1834 infer(pps_scaling_win_top_offset, current->pps_conf_win_top_offset);
1835 infer(pps_scaling_win_bottom_offset, current->pps_conf_win_bottom_offset);
1836 }
1837
1838 flag(pps_output_flag_present_flag);
1839 flag(pps_no_pic_partition_flag);
1840 flag(pps_subpic_id_mapping_present_flag);
1841
1842 if (current->pps_subpic_id_mapping_present_flag) {
1843 if (!current->pps_no_pic_partition_flag) {
1844 ue(pps_num_subpics_minus1,
1845 sps->sps_num_subpics_minus1, sps->sps_num_subpics_minus1);
1846 } else {
1847 infer(pps_num_subpics_minus1, 0);
1848 }
1849 ue(pps_subpic_id_len_minus1, sps->sps_subpic_id_len_minus1,
1850 sps->sps_subpic_id_len_minus1);
1851 for (i = 0; i <= current->pps_num_subpics_minus1; i++) {
1852 ubs(sps->sps_subpic_id_len_minus1 + 1, pps_subpic_id[i], 1, i);
1853 }
1854 }
1855
1856 for (i = 0; i <= sps->sps_num_subpics_minus1; i++) {
1857 if (sps->sps_subpic_id_mapping_explicitly_signalled_flag)
1858 current->sub_pic_id_val[i] = current->pps_subpic_id_mapping_present_flag
1859 ? current->pps_subpic_id[i]
1860 : sps->sps_subpic_id[i];
1861 else
1862 current->sub_pic_id_val[i] = i;
1863 }
1864
1865 pic_width_in_ctbs_y = AV_CEIL_RSHIFT
1866 (current->pps_pic_width_in_luma_samples, (sps->sps_log2_ctu_size_minus5 + 5));
1867 pic_height_in_ctbs_y = AV_CEIL_RSHIFT(
1868 current->pps_pic_height_in_luma_samples,(sps->sps_log2_ctu_size_minus5 + 5));
1869 if (!current->pps_no_pic_partition_flag) {
1870 unsigned int exp_tile_width = 0, exp_tile_height = 0;
1871 unsigned int unified_size, remaining_size;
1872
1873 u(2, pps_log2_ctu_size_minus5,
1874 sps->sps_log2_ctu_size_minus5, sps->sps_log2_ctu_size_minus5);
1875 ue(pps_num_exp_tile_columns_minus1,
1876 0, FFMIN(pic_width_in_ctbs_y - 1, VVC_MAX_TILE_COLUMNS - 1));
1877 ue(pps_num_exp_tile_rows_minus1,
1878 0, FFMIN(pic_height_in_ctbs_y - 1, VVC_MAX_TILE_ROWS - 1));
1879
1880 for (i = 0; i <= current->pps_num_exp_tile_columns_minus1; i++) {
1881 ues(pps_tile_column_width_minus1[i],
1882 0, pic_width_in_ctbs_y - exp_tile_width - 1, 1, i);
1883 exp_tile_width += current->pps_tile_column_width_minus1[i] + 1;
1884 }
1885 for (i = 0; i <= current->pps_num_exp_tile_rows_minus1; i++) {
1886 ues(pps_tile_row_height_minus1[i],
1887 0, pic_height_in_ctbs_y - exp_tile_height - 1, 1, i);
1888 exp_tile_height += current->pps_tile_row_height_minus1[i] + 1;
1889 }
1890
1891 remaining_size = pic_width_in_ctbs_y;
1892 for (i = 0; i <= current->pps_num_exp_tile_columns_minus1; i++) {
1893 if (current->pps_tile_column_width_minus1[i] >= remaining_size) {
1894 av_log(ctx->log_ctx, AV_LOG_ERROR,
1895 "Tile column width(%d) exceeds picture width\n",i);
1896 return AVERROR_INVALIDDATA;
1897 }
1898 current->col_width_val[i] = current->pps_tile_column_width_minus1[i] + 1;
1899 remaining_size -= (current->pps_tile_column_width_minus1[i] + 1);
1900 }
1901 unified_size = current->pps_tile_column_width_minus1[i - 1] + 1;
1902 while (remaining_size > 0) {
1903 if (i == VVC_MAX_TILE_COLUMNS) {
1904 av_log(ctx->log_ctx, AV_LOG_ERROR,
1905 "Exceeded maximum tile columns (%d) (remaining size: %u)\n",
1906 VVC_MAX_TILE_COLUMNS, remaining_size);
1907 return AVERROR_INVALIDDATA;
1908 }
1909 unified_size = FFMIN(remaining_size, unified_size);
1910 current->col_width_val[i] = unified_size;
1911 remaining_size -= unified_size;
1912 i++;
1913 }
1914 current->num_tile_columns = i;
1915
1916 remaining_size = pic_height_in_ctbs_y;
1917 for (i = 0; i <= current->pps_num_exp_tile_rows_minus1; i++) {
1918 if (current->pps_tile_row_height_minus1[i] >= remaining_size) {
1919 av_log(ctx->log_ctx, AV_LOG_ERROR,
1920 "Tile row height(%d) exceeds picture height\n",i);
1921 return AVERROR_INVALIDDATA;
1922 }
1923 current->row_height_val[i] = current->pps_tile_row_height_minus1[i] + 1;
1924 remaining_size -= (current->pps_tile_row_height_minus1[i] + 1);
1925 }
1926 unified_size = current->pps_tile_row_height_minus1[i - 1] + 1;
1927
1928 while (remaining_size > 0) {
1929 if (i == VVC_MAX_TILE_ROWS) {
1930 av_log(ctx->log_ctx, AV_LOG_ERROR,
1931 "Exceeded maximum tile rows (%d) (remaining size: %u)\n",
1932 VVC_MAX_TILE_ROWS, remaining_size);
1933 return AVERROR_INVALIDDATA;
1934 }
1935 unified_size = FFMIN(remaining_size, unified_size);
1936 current->row_height_val[i] = unified_size;
1937 remaining_size -= unified_size;
1938 i++;
1939 }
1940 current->num_tile_rows=i;
1941
1942 current->num_tiles_in_pic = current->num_tile_columns *
1943 current->num_tile_rows;
1944 if (current->num_tiles_in_pic > VVC_MAX_TILES_PER_AU) {
1945 av_log(ctx->log_ctx, AV_LOG_ERROR,
1946 "NumTilesInPic(%d) > than VVC_MAX_TILES_PER_AU(%d)\n",
1947 current->num_tiles_in_pic, VVC_MAX_TILES_PER_AU);
1948 return AVERROR_INVALIDDATA;
1949 }
1950
1951 if (current->num_tiles_in_pic > 1) {
1952 flag(pps_loop_filter_across_tiles_enabled_flag);
1953 flag(pps_rect_slice_flag);
1954 } else {
1955 infer(pps_loop_filter_across_tiles_enabled_flag, 0);
1956 infer(pps_rect_slice_flag, 1);
1957 }
1958 if (current->pps_rect_slice_flag)
1959 flag(pps_single_slice_per_subpic_flag);
1960 else
1961 infer(pps_single_slice_per_subpic_flag, 1);
1962 if (current->pps_rect_slice_flag &&
1963 !current->pps_single_slice_per_subpic_flag) {
1964 int j, num_slices = 0;
1965 uint16_t tile_idx = 0, tile_x, tile_y, ctu_x, ctu_y;
1966 uint16_t slice_top_left_ctu_x[VVC_MAX_SLICES];
1967 uint16_t slice_top_left_ctu_y[VVC_MAX_SLICES];
1968 ue(pps_num_slices_in_pic_minus1, 0, VVC_MAX_SLICES - 1);
1969 if (current->pps_num_slices_in_pic_minus1 > 1)
1970 flag(pps_tile_idx_delta_present_flag);
1971 else
1972 infer(pps_tile_idx_delta_present_flag, 0);
1973 for (i = 0; i < current->pps_num_slices_in_pic_minus1; i++) {
1974 current->slice_top_left_tile_idx[i] = tile_idx;
1975 tile_x = tile_idx % current->num_tile_columns;
1976 tile_y = tile_idx / current->num_tile_columns;
1977 if (tile_y >= current->num_tile_rows)
1978 return AVERROR_INVALIDDATA;
1979 if (tile_x != current->num_tile_columns - 1) {
1980 ues(pps_slice_width_in_tiles_minus1[i],
1981 0, current->num_tile_columns - 1 - tile_x, 1, i);
1982 } else {
1983 infer(pps_slice_width_in_tiles_minus1[i], 0);
1984 }
1985 if (tile_y != current->num_tile_rows - 1 &&
1986 (current->pps_tile_idx_delta_present_flag || tile_x == 0)) {
1987 ues(pps_slice_height_in_tiles_minus1[i],
1988 0, current->num_tile_rows - 1 - tile_y, 1, i);
1989 } else {
1990 if (tile_y == current->num_tile_rows - 1)
1991 infer(pps_slice_height_in_tiles_minus1[i], 0);
1992 else
1993 infer(pps_slice_height_in_tiles_minus1[i],
1994 current->pps_slice_height_in_tiles_minus1[i - 1]);
1995 }
1996
1997 ctu_x = ctu_y = 0;
1998 for (j = 0; j < tile_x; j++) {
1999 ctu_x += current->col_width_val[j];
2000 }
2001 for (j = 0; j < tile_y; j++) {
2002 ctu_y += current->row_height_val[j];
2003 }
2004 if (current->pps_slice_width_in_tiles_minus1[i] == 0 &&
2005 current->pps_slice_height_in_tiles_minus1[i] == 0 &&
2006 current->row_height_val[tile_y] > 1) {
2007 int uniform_slice_height, remaining_height_in_ctbs_y;
2008 remaining_height_in_ctbs_y =
2009 current->row_height_val[tile_y];
2010 ues(pps_num_exp_slices_in_tile[i],
2011 0, current->row_height_val[tile_y] - 1, 1, i);
2012 if (current->pps_num_exp_slices_in_tile[i] == 0) {
2013 current->num_slices_in_tile[i] = 1;
2014 current->slice_height_in_ctus[i] = current->row_height_val[tile_y];
2015 slice_top_left_ctu_x[i] = ctu_x;
2016 slice_top_left_ctu_y[i] = ctu_y;
2017 } else {
2018 uint16_t slice_height_in_ctus;
2019 int num_uniform_slices;
2020
2021 if (i + current->pps_num_exp_slices_in_tile[i] >
2022 current->pps_num_slices_in_pic_minus1 + 1)
2023 return AVERROR_INVALIDDATA;
2024
2025 for (j = 0; j < current->pps_num_exp_slices_in_tile[i];
2026 j++) {
2027 ues(pps_exp_slice_height_in_ctus_minus1[i][j], 0,
2028 remaining_height_in_ctbs_y - (current->pps_num_exp_slices_in_tile[i] - j), 2,
2029 i, j);
2030 slice_height_in_ctus =
2031 current->
2032 pps_exp_slice_height_in_ctus_minus1[i][j] + 1;
2033
2034 current->slice_height_in_ctus[i + j] =
2035 slice_height_in_ctus;
2036 slice_top_left_ctu_x[i + j] = ctu_x;
2037 slice_top_left_ctu_y[i + j] = ctu_y;
2038 ctu_y += slice_height_in_ctus;
2039
2040 remaining_height_in_ctbs_y -= slice_height_in_ctus;
2041 }
2042 uniform_slice_height = 1 +
2043 (j == 0 ? current->row_height_val[tile_y] - 1:
2044 current->pps_exp_slice_height_in_ctus_minus1[i][j-1]);
2045
2046 num_uniform_slices = (remaining_height_in_ctbs_y + uniform_slice_height - 1)
2047 / uniform_slice_height;
2048 if (i + current->pps_num_exp_slices_in_tile[i] + num_uniform_slices >
2049 current->pps_num_slices_in_pic_minus1 + 1)
2050 return AVERROR_INVALIDDATA;
2051
2052 while (remaining_height_in_ctbs_y > uniform_slice_height) {
2053 current->slice_height_in_ctus[i + j] =
2054 uniform_slice_height;
2055 slice_top_left_ctu_x[i + j] = ctu_x;
2056 slice_top_left_ctu_y[i + j] = ctu_y;
2057 ctu_y += uniform_slice_height;
2058
2059 remaining_height_in_ctbs_y -= uniform_slice_height;
2060 j++;
2061 }
2062 if (remaining_height_in_ctbs_y > 0) {
2063 current->slice_height_in_ctus[i + j] =
2064 remaining_height_in_ctbs_y;
2065 slice_top_left_ctu_x[i + j] = ctu_x;
2066 slice_top_left_ctu_y[i + j] = ctu_y;
2067 j++;
2068 }
2069 current->num_slices_in_tile[i] = j;
2070 }
2071 for (int k = 0; k < current->num_slices_in_tile[i]; k++)
2072 current->slice_top_left_tile_idx[i + k] = tile_idx;
2073 i += current->num_slices_in_tile[i] - 1;
2074 } else {
2075 uint16_t height = 0;
2076 infer(pps_num_exp_slices_in_tile[i], 0);
2077 if (current->pps_slice_width_in_tiles_minus1[i] == 0 &&
2078 current->pps_slice_height_in_tiles_minus1[i] == 0)
2079 current->num_slices_in_tile[i] = 1;
2080
2081 for (j = 0;
2082 j <= current->pps_slice_height_in_tiles_minus1[i];
2083 j++) {
2084 height +=
2085 current->row_height_val[tile_y + j];
2086 }
2087 current->slice_height_in_ctus[i] = height;
2088
2089 slice_top_left_ctu_x[i] = ctu_x;
2090 slice_top_left_ctu_y[i] = ctu_y;
2091 }
2092 if (i < current->pps_num_slices_in_pic_minus1) {
2093 if (current->pps_tile_idx_delta_present_flag) {
2094 // Two conditions must be met:
2095 // 1. −NumTilesInPic + 1 <= pps_tile_idx_delta_val[i] <= NumTilesInPic − 1
2096 // 2. 0 <= tile_idx + pps_tile_idx_delta_val[i] <= NumTilesInPic − 1
2097 // Combining these conditions yields: -tile_idx <= pps_tile_idx_delta_val[i] <= NumTilesInPic - 1 - tile_idx
2098 ses(pps_tile_idx_delta_val[i],
2099 -tile_idx, current->num_tiles_in_pic - 1 - tile_idx, 1, i);
2100 if (current->pps_tile_idx_delta_val[i] == 0) {
2101 av_log(ctx->log_ctx, AV_LOG_ERROR,
2102 "pps_tile_idx_delta_val[i] shall not be equal to 0.\n");
2103 }
2104 tile_idx += current->pps_tile_idx_delta_val[i];
2105 } else {
2106 infer(pps_tile_idx_delta_val[i], 0);
2107 tile_idx +=
2108 current->pps_slice_width_in_tiles_minus1[i] + 1;
2109 if (tile_idx % current->num_tile_columns == 0) {
2110 tile_idx +=
2111 current->pps_slice_height_in_tiles_minus1[i] *
2112 current->num_tile_columns;
2113 }
2114 }
2115 }
2116 }
2117 if (i == current->pps_num_slices_in_pic_minus1) {
2118 uint16_t height = 0;
2119
2120 current->slice_top_left_tile_idx[i] = tile_idx;
2121 current->num_slices_in_tile[i] = 1;
2122 tile_x = tile_idx % current->num_tile_columns;
2123 tile_y = tile_idx / current->num_tile_columns;
2124 if (tile_y >= current->num_tile_rows)
2125 return AVERROR_INVALIDDATA;
2126
2127 ctu_x = 0, ctu_y = 0;
2128 for (j = 0; j < tile_x; j++) {
2129 ctu_x += current->col_width_val[j];
2130 }
2131 for (j = 0; j < tile_y; j++) {
2132 ctu_y += current->row_height_val[j];
2133 }
2134 slice_top_left_ctu_x[i] = ctu_x;
2135 slice_top_left_ctu_y[i] = ctu_y;
2136
2137 current->pps_slice_width_in_tiles_minus1[i] =
2138 current->num_tile_columns - tile_x - 1;
2139 current->pps_slice_height_in_tiles_minus1[i] =
2140 current->num_tile_rows - tile_y - 1;
2141
2142 for (j = 0; j <= current->pps_slice_height_in_tiles_minus1[i];
2143 j++) {
2144 height +=
2145 current->row_height_val[tile_y + j];
2146 }
2147 current->slice_height_in_ctus[i] = height;
2148
2149 infer(pps_num_exp_slices_in_tile[i], 0);
2150 }
2151 //now, we got all slice information, let's resolve NumSlicesInSubpic
2152 for (i = 0; i <= sps->sps_num_subpics_minus1; i++) {
2153 current->num_slices_in_subpic[i] = 0;
2154 for (j = 0; j <= current->pps_num_slices_in_pic_minus1; j++) {
2155 uint16_t pos_x = 0, pos_y = 0;
2156 pos_x = slice_top_left_ctu_x[j];
2157 pos_y = slice_top_left_ctu_y[j];
2158 if ((pos_x >= sps->sps_subpic_ctu_top_left_x[i]) &&
2159 (pos_x <
2160 sps->sps_subpic_ctu_top_left_x[i] +
2161 sps->sps_subpic_width_minus1[i] + 1) &&
2162 (pos_y >= sps->sps_subpic_ctu_top_left_y[i]) &&
2163 (pos_y < sps->sps_subpic_ctu_top_left_y[i] +
2164 sps->sps_subpic_height_minus1[i] + 1)) {
2165 current->num_slices_in_subpic[i]++;
2166 }
2167 }
2168 if (!current->num_slices_in_subpic[i])
2169 return AVERROR_INVALIDDATA;
2170 num_slices += current->num_slices_in_subpic[i];
2171 }
2172 if (current->pps_num_slices_in_pic_minus1 + 1 != num_slices)
2173 return AVERROR_INVALIDDATA;
2174 } else {
2175 if (current->pps_no_pic_partition_flag)
2176 infer(pps_num_slices_in_pic_minus1, 0);
2177 else if (current->pps_single_slice_per_subpic_flag) {
2178 for (i = 0; i <= sps->sps_num_subpics_minus1; i++)
2179 current->num_slices_in_subpic[i] = 1;
2180 infer(pps_num_slices_in_pic_minus1,
2181 sps->sps_num_subpics_minus1);
2182 }
2183 // else?
2184 }
2185 if (!current->pps_rect_slice_flag ||
2186 current->pps_single_slice_per_subpic_flag ||
2187 current->pps_num_slices_in_pic_minus1 > 0)
2188 flag(pps_loop_filter_across_slices_enabled_flag);
2189 else
2190 infer(pps_loop_filter_across_slices_enabled_flag, 0);
2191 } else {
2192 infer(pps_num_exp_tile_columns_minus1, 0);
2193 infer(pps_tile_column_width_minus1[0], pic_width_in_ctbs_y - 1);
2194 infer(pps_num_exp_tile_rows_minus1, 0);
2195 infer(pps_tile_row_height_minus1[0], pic_height_in_ctbs_y - 1);
2196 current->col_width_val[0] = pic_width_in_ctbs_y;
2197 current->row_height_val[0] = pic_height_in_ctbs_y;
2198 current->num_tile_columns = 1;
2199 current->num_tile_rows = 1;
2200 current->num_tiles_in_pic = 1;
2201 }
2202
2203 flag(pps_cabac_init_present_flag);
2204 for (i = 0; i < 2; i++)
2205 ues(pps_num_ref_idx_default_active_minus1[i], 0, 14, 1, i);
2206 flag(pps_rpl1_idx_present_flag);
2207 flag(pps_weighted_pred_flag);
2208 flag(pps_weighted_bipred_flag);
2209 flag(pps_ref_wraparound_enabled_flag);
2210 if (current->pps_ref_wraparound_enabled_flag) {
2211 ue(pps_pic_width_minus_wraparound_offset,
2212 0, (current->pps_pic_width_in_luma_samples / min_cb_size_y)
2213 - (ctb_size_y / min_cb_size_y) - 2);
2214 }
2215
2216 qp_bd_offset = 6 * sps->sps_bitdepth_minus8;
2217 se(pps_init_qp_minus26, -(26 + qp_bd_offset), 37);
2218 flag(pps_cu_qp_delta_enabled_flag);
2219 flag(pps_chroma_tool_offsets_present_flag);
2220 if (current->pps_chroma_tool_offsets_present_flag) {
2221 se(pps_cb_qp_offset, -12, 12);
2222 se(pps_cr_qp_offset, -12, 12);
2223 flag(pps_joint_cbcr_qp_offset_present_flag);
2224 if (current->pps_joint_cbcr_qp_offset_present_flag)
2225 se(pps_joint_cbcr_qp_offset_value, -12, 12);
2226 else
2227 infer(pps_joint_cbcr_qp_offset_value, 0);
2228 flag(pps_slice_chroma_qp_offsets_present_flag);
2229 flag(pps_cu_chroma_qp_offset_list_enabled_flag);
2230 if (current->pps_cu_chroma_qp_offset_list_enabled_flag) {
2231 ue(pps_chroma_qp_offset_list_len_minus1, 0, 5);
2232 for (i = 0; i <= current->pps_chroma_qp_offset_list_len_minus1; i++) {
2233 ses(pps_cb_qp_offset_list[i], -12, 12, 1, i);
2234 ses(pps_cr_qp_offset_list[i], -12, 12, 1, i);
2235 if (current->pps_joint_cbcr_qp_offset_present_flag)
2236 ses(pps_joint_cbcr_qp_offset_list[i], -12, 12, 1, i);
2237 else
2238 infer(pps_joint_cbcr_qp_offset_list[i], 0);
2239 }
2240 }
2241 } else {
2242 infer(pps_cb_qp_offset, 0);
2243 infer(pps_cr_qp_offset, 0);
2244 infer(pps_joint_cbcr_qp_offset_present_flag, 0);
2245 infer(pps_joint_cbcr_qp_offset_value, 0);
2246 infer(pps_slice_chroma_qp_offsets_present_flag, 0);
2247 infer(pps_cu_chroma_qp_offset_list_enabled_flag, 0);
2248 }
2249 flag(pps_deblocking_filter_control_present_flag);
2250 if (current->pps_deblocking_filter_control_present_flag) {
2251 flag(pps_deblocking_filter_override_enabled_flag);
2252 flag(pps_deblocking_filter_disabled_flag);
2253 if (!current->pps_no_pic_partition_flag &&
2254 current->pps_deblocking_filter_override_enabled_flag)
2255 flag(pps_dbf_info_in_ph_flag);
2256 else
2257 infer(pps_dbf_info_in_ph_flag, 0);
2258 if (!current->pps_deblocking_filter_disabled_flag) {
2259 se(pps_luma_beta_offset_div2, -12, 12);
2260 se(pps_luma_tc_offset_div2, -12, 12);
2261 if (current->pps_chroma_tool_offsets_present_flag) {
2262 se(pps_cb_beta_offset_div2, -12, 12);
2263 se(pps_cb_tc_offset_div2, -12, 12);
2264 se(pps_cr_beta_offset_div2, -12, 12);
2265 se(pps_cr_tc_offset_div2, -12, 12);
2266 } else {
2267 infer(pps_cb_beta_offset_div2,
2268 current->pps_luma_beta_offset_div2);
2269 infer(pps_cb_tc_offset_div2, current->pps_luma_tc_offset_div2);
2270 infer(pps_cr_beta_offset_div2,
2271 current->pps_luma_beta_offset_div2);
2272 infer(pps_cr_tc_offset_div2, current->pps_luma_tc_offset_div2);
2273 }
2274 } else {
2275 infer(pps_luma_beta_offset_div2, 0);
2276 infer(pps_luma_tc_offset_div2, 0);
2277 infer(pps_cb_beta_offset_div2, 0);
2278 infer(pps_cb_tc_offset_div2, 0);
2279 infer(pps_cr_beta_offset_div2, 0);
2280 infer(pps_cr_tc_offset_div2, 0);
2281 }
2282 } else {
2283 infer(pps_deblocking_filter_override_enabled_flag, 0);
2284 infer(pps_deblocking_filter_disabled_flag, 0);
2285 infer(pps_dbf_info_in_ph_flag, 0);
2286 infer(pps_luma_beta_offset_div2, 0);
2287 infer(pps_luma_tc_offset_div2, 0);
2288 infer(pps_cb_beta_offset_div2, 0);
2289 infer(pps_cb_tc_offset_div2, 0);
2290 infer(pps_cr_beta_offset_div2, 0);
2291 infer(pps_cr_tc_offset_div2, 0);
2292 }
2293
2294 if (!current->pps_no_pic_partition_flag) {
2295 flag(pps_rpl_info_in_ph_flag);
2296 flag(pps_sao_info_in_ph_flag);
2297 flag(pps_alf_info_in_ph_flag);
2298 if ((current->pps_weighted_pred_flag ||
2299 current->pps_weighted_bipred_flag) &&
2300 current->pps_rpl_info_in_ph_flag)
2301 flag(pps_wp_info_in_ph_flag);
2302 flag(pps_qp_delta_info_in_ph_flag);
2303 }
2304 flag(pps_picture_header_extension_present_flag);
2305 flag(pps_slice_header_extension_present_flag);
2306
2307 flag(pps_extension_flag);
2308 if (current->pps_extension_flag)
2309 CHECK(FUNC(extension_data) (ctx, rw, &current->extension_data));
2310
2311 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
2312 return 0;
2313}
2314
2315static int FUNC(alf_data)(CodedBitstreamContext *ctx, RWContext *rw,
2316 H266RawAPS *current)
2317{
2318 int err, j, k;
2319
2320 flag(alf_luma_filter_signal_flag);
2321
2322 if (current->aps_chroma_present_flag) {
2323 flag(alf_chroma_filter_signal_flag);
2324 flag(alf_cc_cb_filter_signal_flag);
2325 flag(alf_cc_cr_filter_signal_flag);
2326 } else {
2327 infer(alf_chroma_filter_signal_flag, 0);
2328 infer(alf_cc_cb_filter_signal_flag, 0);
2329 infer(alf_cc_cr_filter_signal_flag, 0);
2330 }
2331
2332 if (current->alf_luma_filter_signal_flag) {
2333 flag(alf_luma_clip_flag);
2334 ue(alf_luma_num_filters_signalled_minus1, 0, VVC_NUM_ALF_FILTERS - 1);
2335 if (current->alf_luma_num_filters_signalled_minus1 > 0) {
2336 unsigned int bits = av_ceil_log2(current->alf_luma_num_filters_signalled_minus1 + 1);
2337 for (int filt_idx = 0; filt_idx < VVC_NUM_ALF_FILTERS; filt_idx++)
2338 us(bits, alf_luma_coeff_delta_idx[filt_idx],
2339 0, current->alf_luma_num_filters_signalled_minus1,
2340 1, filt_idx);
2341 }
2342 for (int sf_idx = 0; sf_idx <= current->alf_luma_num_filters_signalled_minus1; sf_idx++)
2343 for (j = 0; j < 12; j++) {
2344 ues(alf_luma_coeff_abs[sf_idx][j], 0, 128, 2, sf_idx, j);
2345 if (current->alf_luma_coeff_abs[sf_idx][j])
2346 ubs(1, alf_luma_coeff_sign[sf_idx][j], 2, sf_idx, j);
2347 else
2348 infer(alf_luma_coeff_sign[sf_idx][j], 0);
2349 }
2350 } else {
2351 infer(alf_luma_clip_flag, 0);
2352 infer(alf_luma_num_filters_signalled_minus1, 0);
2353 }
2354 for (int sf_idx = 0; sf_idx <= current->alf_luma_num_filters_signalled_minus1; sf_idx++) {
2355 for (j = 0; j < 12; j++) {
2356 if (current->alf_luma_clip_flag)
2357 ubs(2, alf_luma_clip_idx[sf_idx][j], 2, sf_idx, j);
2358 else
2359 infer(alf_luma_clip_idx[sf_idx][j], 0);
2360 }
2361 }
2362
2363 if (current->alf_chroma_filter_signal_flag) {
2364 flag(alf_chroma_clip_flag);
2365 ue(alf_chroma_num_alt_filters_minus1, 0, 7);
2366 } else {
2367 infer(alf_chroma_clip_flag, 0);
2368 infer(alf_chroma_num_alt_filters_minus1, 0);
2369 }
2370 for (int alt_idx = 0; alt_idx <= current->alf_chroma_num_alt_filters_minus1; alt_idx++) {
2371 for (j = 0; j < 6; j++) {
2372 if (current->alf_chroma_filter_signal_flag)
2373 ues(alf_chroma_coeff_abs[alt_idx][j], 0, 128, 2, alt_idx, j);
2374 else
2375 infer(alf_chroma_coeff_abs[alt_idx][j], 0);
2376 if (current->alf_chroma_coeff_abs[alt_idx][j] > 0)
2377 ubs(1, alf_chroma_coeff_sign[alt_idx][j], 2, alt_idx, j);
2378 else
2379 infer(alf_chroma_coeff_sign[alt_idx][j], 0);
2380 }
2381 for (j = 0; j < 6; j++) {
2382 if (current->alf_chroma_clip_flag)
2383 ubs(2, alf_chroma_clip_idx[alt_idx][j], 2, alt_idx, j);
2384 else
2385 infer(alf_chroma_clip_idx[alt_idx][j], 0);
2386 }
2387 }
2388
2389 if (current->alf_cc_cb_filter_signal_flag)
2390 ue(alf_cc_cb_filters_signalled_minus1, 0, 3);
2391 else
2392 infer(alf_cc_cb_filters_signalled_minus1, 0);
2393 for (k = 0; k <= current->alf_cc_cb_filters_signalled_minus1; k++) {
2394 for (j = 0; j < 7; j++) {
2395 if (current->alf_cc_cb_filter_signal_flag)
2396 ubs(3, alf_cc_cb_mapped_coeff_abs[k][j], 2, k, j);
2397 else
2398 infer(alf_cc_cb_mapped_coeff_abs[k][j], 0);
2399 if (current->alf_cc_cb_mapped_coeff_abs[k][j])
2400 ubs(1, alf_cc_cb_coeff_sign[k][j], 2, k, j);
2401 else
2402 infer(alf_cc_cb_coeff_sign[k][j], 0);
2403 }
2404 }
2405
2406 if (current->alf_cc_cr_filter_signal_flag)
2407 ue(alf_cc_cr_filters_signalled_minus1, 0, 3);
2408 else
2409 infer(alf_cc_cr_filters_signalled_minus1, 0);
2410 for (k = 0; k < current->alf_cc_cr_filters_signalled_minus1 + 1; k++) {
2411 for (j = 0; j < 7; j++) {
2412 if (current->alf_cc_cr_filter_signal_flag)
2413 ubs(3, alf_cc_cr_mapped_coeff_abs[k][j], 2, k, j);
2414 else
2415 infer(alf_cc_cr_mapped_coeff_abs[k][j], 0);
2416 if (current->alf_cc_cr_mapped_coeff_abs[k][j])
2417 ubs(1, alf_cc_cr_coeff_sign[k][j], 2, k, j);
2418 else
2419 infer(alf_cc_cr_coeff_sign[k][j], 0);
2420 }
2421 }
2422
2423 return 0;
2424}
2425
2426static int FUNC(lmcs_data)(CodedBitstreamContext *ctx, RWContext *rw,
2427 H266RawAPS *current)
2428{
2429 int err, i, lmcs_max_bin_idx;
2430
2431 ue(lmcs_min_bin_idx, 0, 15);
2432 ue(lmcs_delta_max_bin_idx, 0, 15);
2433 ue(lmcs_delta_cw_prec_minus1, 0, 14);
2434
2435 lmcs_max_bin_idx = 15 - current->lmcs_delta_max_bin_idx;
2436
2437 if (lmcs_max_bin_idx < current->lmcs_min_bin_idx)
2438 return AVERROR_INVALIDDATA;
2439
2440 for (i = current->lmcs_min_bin_idx; i <= lmcs_max_bin_idx; i++) {
2441 ubs(current->lmcs_delta_cw_prec_minus1 + 1, lmcs_delta_abs_cw[i], 1, i);
2442 if (current->lmcs_delta_abs_cw[i] > 0)
2443 flags(lmcs_delta_sign_cw_flag[i], 1, i);
2444 else
2445 infer(lmcs_delta_sign_cw_flag[i], 0);
2446 }
2447
2448 if (current->aps_chroma_present_flag) {
2449 ub(3, lmcs_delta_abs_crs);
2450 if (current->lmcs_delta_abs_crs > 0)
2451 flag(lmcs_delta_sign_crs_flag);
2452 else
2453 infer(lmcs_delta_sign_crs_flag, 0);
2454 } else {
2455 infer(lmcs_delta_abs_crs, 0);
2456 infer(lmcs_delta_sign_crs_flag, 0);
2457 }
2458
2459 return 0;
2460}
2461
2462static int FUNC(scaling_list_data)(CodedBitstreamContext *ctx, RWContext *rw,
2463 H266RawAPS *current)
2464{
2465 // 7.4.3.4, deriving DiagScanOrder
2466 static const uint8_t diag_scan_order[64][2] = {
2467 { 0, 0, }, { 0, 1, }, { 1, 0, }, { 0, 2, }, { 1, 1, }, { 2, 0, }, { 0, 3, }, { 1, 2, },
2468 { 2, 1, }, { 3, 0, }, { 0, 4, }, { 1, 3, }, { 2, 2, }, { 3, 1, }, { 4, 0, }, { 0, 5, },
2469 { 1, 4, }, { 2, 3, }, { 3, 2, }, { 4, 1, }, { 5, 0, }, { 0, 6, }, { 1, 5, }, { 2, 4, },
2470 { 3, 3, }, { 4, 2, }, { 5, 1, }, { 6, 0, }, { 0, 7, }, { 1, 6, }, { 2, 5, }, { 3, 4, },
2471 { 4, 3, }, { 5, 2, }, { 6, 1, }, { 7, 0, }, { 1, 7, }, { 2, 6, }, { 3, 5, }, { 4, 4, },
2472 { 5, 3, }, { 6, 2, }, { 7, 1, }, { 2, 7, }, { 3, 6, }, { 4, 5, }, { 5, 4, }, { 6, 3, },
2473 { 7, 2, }, { 3, 7, }, { 4, 6, }, { 5, 5, }, { 6, 4, }, { 7, 3, }, { 4, 7, }, { 5, 6, },
2474 { 6, 5, }, { 7, 4, }, { 5, 7, }, { 6, 6, }, { 7, 5, }, { 6, 7, }, { 7, 6, }, { 7, 7, }, };
2475 int err;
2476
2477 for (int id = 0; id < 28; id ++) {
2478 if (current->aps_chroma_present_flag || id % 3 == 2 || id == 27) {
2479 flags(scaling_list_copy_mode_flag[id], 1, id);
2480 if (!current->scaling_list_copy_mode_flag[id])
2481 flags(scaling_list_pred_mode_flag[id], 1, id);
2482 else
2483 infer(scaling_list_pred_mode_flag[id], 0);
2484 if ((current->scaling_list_copy_mode_flag[id] ||
2485 current->scaling_list_pred_mode_flag[id]) &&
2486 id != 0 && id != 2 && id != 8) {
2487 int max_id_delta = (id < 2) ? id : ((id < 8) ? (id - 2) : (id - 8));
2488 ues(scaling_list_pred_id_delta[id], 0, max_id_delta, 1, id);
2489 }
2490 if (!current->scaling_list_copy_mode_flag[id]) {
2491 int matrix_size = id < 2 ? 2 : (id < 8 ? 4 : 8);
2492 if (id > 13) {
2493 int idx = id - 14;
2494 ses(scaling_list_dc_coef[idx], -128, 127, 1, idx);
2495 }
2496 for (int i = 0; i < matrix_size * matrix_size; i++) {
2497 int x = diag_scan_order[i][0];
2498 int y = diag_scan_order[i][1];
2499 if (!(id > 25 && x >= 4 && y >= 4))
2500 ses(scaling_list_delta_coef[id][i], -128, 127, 2, id, i);
2501 }
2502 } else if (id > 13) {
2503 int idx = id - 14;
2504 infer(scaling_list_dc_coef[idx], 0);
2505 }
2506 } else {
2507 infer(scaling_list_copy_mode_flag[id], 1);
2508 infer(scaling_list_pred_mode_flag[id], 0);
2509 }
2510 }
2511
2512 return 0;
2513}
2514
2515static int FUNC(aps)(CodedBitstreamContext *ctx, RWContext *rw,
2516 H266RawAPS *current, int prefix)
2517{
2518 int aps_id_max = MAX_UINT_BITS(5);
2519 int err;
2520
2521 if (prefix)
2522 HEADER("Prefix Adaptation parameter set");
2523 else
2524 HEADER("Suffix Adaptation parameter set");
2525
2526 CHECK(FUNC(nal_unit_header)(ctx, rw, &current->nal_unit_header,
2527 prefix ? VVC_PREFIX_APS_NUT
2528 : VVC_SUFFIX_APS_NUT));
2529
2530 ub(3, aps_params_type);
2531 if (current->aps_params_type == VVC_ASP_TYPE_ALF ||
2532 current->aps_params_type == VVC_ASP_TYPE_SCALING)
2533 aps_id_max = 7;
2534 else if (current->aps_params_type == VVC_ASP_TYPE_LMCS)
2535 aps_id_max = 3;
2536 u(5, aps_adaptation_parameter_set_id, 0, aps_id_max);
2537 flag(aps_chroma_present_flag);
2538 if (current->aps_params_type == VVC_ASP_TYPE_ALF)
2539 CHECK(FUNC(alf_data)(ctx, rw, current));
2540 else if(current->aps_params_type == VVC_ASP_TYPE_LMCS)
2541 CHECK(FUNC(lmcs_data)(ctx, rw, current));
2542 else if (current->aps_params_type == VVC_ASP_TYPE_SCALING)
2543 CHECK(FUNC(scaling_list_data)(ctx, rw, current));
2544 flag(aps_extension_flag);
2545 if (current->aps_extension_flag)
2546 CHECK(FUNC(extension_data) (ctx, rw, &current->extension_data));
2547 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
2548
2549 return 0;
2550}
2551
2552static int FUNC(aud) (CodedBitstreamContext *ctx, RWContext *rw,
2553 H266RawAUD *current)
2554{
2555 int err;
2556
2557 HEADER("Access Unit Delimiter");
2558
2559 CHECK(FUNC(nal_unit_header) (ctx, rw,
2560 &current->nal_unit_header, VVC_AUD_NUT));
2561
2562 flag(aud_irap_or_gdr_flag);
2563 u(3, aud_pic_type, 0, 2);
2564
2565 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
2566 return 0;
2567}
2568
2569static int FUNC(pred_weight_table) (CodedBitstreamContext *ctx, RWContext *rw,
2570 const H266RawSPS *sps,
2571 const H266RawPPS *pps,
2572 const H266RefPicLists *ref_lists,
2573 uint8_t num_ref_idx_active[2],
2574 H266RawPredWeightTable *current)
2575{
2576 int err, i, j;
2577 ue(luma_log2_weight_denom, 0, 7);
2578 if (sps->sps_chroma_format_idc != 0) {
2579 se(delta_chroma_log2_weight_denom,
2580 -current->luma_log2_weight_denom,
2581 7 - current->luma_log2_weight_denom);
2582 } else {
2583 infer(delta_chroma_log2_weight_denom, 0);
2584 }
2585 if (pps->pps_wp_info_in_ph_flag) {
2586 ue(num_l0_weights, 0,
2587 FFMIN(15, ref_lists->rpl_ref_list[0].num_ref_entries));
2588 infer(num_weights_l0, current->num_l0_weights);
2589 } else {
2590 infer(num_weights_l0, num_ref_idx_active[0]);
2591 }
2592 for (i = 0; i < current->num_weights_l0; i++) {
2593 flags(luma_weight_l0_flag[i], 1, i);
2594 }
2595 if (sps->sps_chroma_format_idc != 0) {
2596 for (i = 0; i < current->num_weights_l0; i++)
2597 flags(chroma_weight_l0_flag[i], 1, i);
2598 }
2599 for (i = 0; i < current->num_weights_l0; i++) {
2600 if (current->luma_weight_l0_flag[i]) {
2601 ses(delta_luma_weight_l0[i], -128, 127, 1, i);
2602 ses(luma_offset_l0[i], -128, 127, 1, i);
2603 } else {
2604 infer(delta_luma_weight_l0[i], 0);
2605 infer(luma_offset_l0[i], 0);
2606 }
2607 if (current->chroma_weight_l0_flag[i]) {
2608 for (j = 0; j < 2; j++) {
2609 ses(delta_chroma_weight_l0[i][j], -128, 127, 2, i, j);
2610 ses(delta_chroma_offset_l0[i][j], -4 * 128, 4 * 127, 2, i, j);
2611 }
2612 }
2613 }
2614
2615 if (pps->pps_weighted_bipred_flag &&
2616 ref_lists->rpl_ref_list[1].num_ref_entries > 0) {
2617 if (pps->pps_wp_info_in_ph_flag) {
2618 ue(num_l1_weights, 0,
2619 FFMIN(15, ref_lists->rpl_ref_list[1].num_ref_entries));
2620 infer(num_weights_l1, current->num_l1_weights);
2621 } else {
2622 infer(num_weights_l1, num_ref_idx_active[1]);
2623 }
2624 } else {
2625 infer(num_weights_l1, 0);
2626 }
2627
2628 for (i = 0; i < current->num_weights_l1; i++)
2629 flags(luma_weight_l1_flag[i], 1, i);
2630 if (sps->sps_chroma_format_idc != 0) {
2631 for (i = 0; i < current->num_weights_l1; i++)
2632 flags(chroma_weight_l1_flag[i], 1, i);
2633 }
2634 for (i = 0; i < current->num_weights_l1; i++) {
2635 if (current->luma_weight_l1_flag[i]) {
2636 ses(delta_luma_weight_l1[i], -128, 127, 1, i);
2637 ses(luma_offset_l1[i], -128, 127, 1, i);
2638 } else {
2639 infer(delta_luma_weight_l1[i], 0);
2640 infer(luma_offset_l1[i], 0);
2641 }
2642 if (current->chroma_weight_l1_flag[i]) {
2643 for (j = 0; j < 2; j++) {
2644 ses(delta_chroma_weight_l1[i][j], -128, 127, 2, i, j);
2645 ses(delta_chroma_offset_l1[i][j], -4 * 128, 4 * 127, 2, i, j);
2646 }
2647 }
2648 }
2649 return 0;
2650}
2651
2652static int FUNC(picture_header) (CodedBitstreamContext *ctx, RWContext *rw,
2653 H266RawPictureHeader *current) {
2654 CodedBitstreamH266Context *h266 = ctx->priv_data;
2655 const H266RawVPS *vps;
2656 const H266RawSPS *sps;
2657 const H266RawPPS *pps;
2658 int err, i;
2659 unsigned int ctb_log2_size_y, min_cb_log2_size_y,
2660 min_qt_log2_size_intra_y, min_qt_log2_size_inter_y;
2661 uint8_t qp_bd_offset;
2662
2663 flag(ph_gdr_or_irap_pic_flag);
2664 flag(ph_non_ref_pic_flag);
2665 if (current->ph_gdr_or_irap_pic_flag)
2666 flag(ph_gdr_pic_flag);
2667 else
2668 infer(ph_gdr_pic_flag, 0);
2669 flag(ph_inter_slice_allowed_flag);
2670 if (current->ph_inter_slice_allowed_flag)
2671 flag(ph_intra_slice_allowed_flag);
2672 else
2673 infer(ph_intra_slice_allowed_flag, 1);
2674 ue(ph_pic_parameter_set_id, 0, VVC_MAX_PPS_COUNT - 1);
2675 pps = h266->pps[current->ph_pic_parameter_set_id];
2676 if (!pps) {
2677 av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
2678 current->ph_pic_parameter_set_id);
2679 return AVERROR_INVALIDDATA;
2680 }
2681 sps = h266->sps[pps->pps_seq_parameter_set_id];
2682 if (!sps) {
2683 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
2684 pps->pps_seq_parameter_set_id);
2685 return AVERROR_INVALIDDATA;
2686 }
2687 vps = h266->vps[sps->sps_video_parameter_set_id];
2688 if (!vps) {
2689 av_log(ctx->log_ctx, AV_LOG_ERROR, "VPS id %d not available.\n",
2690 sps->sps_video_parameter_set_id);
2691 return AVERROR_INVALIDDATA;
2692 }
2693
2694 ub(sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4, ph_pic_order_cnt_lsb);
2695 if (current->ph_gdr_pic_flag) {
2696#ifdef READ
2697 // H.266 7.4.3.8: ph_recovery_poc_cnt shall be in [0, MaxPicOrderCntLsb - 1].
2698 // The range check is deferred to decode_recovery_poc().
2699 ue(ph_recovery_poc_cnt, 0, UINT32_MAX - 1);
2700#else
2701 ue(ph_recovery_poc_cnt, 0,
2702 (1 << (sps->sps_log2_max_pic_order_cnt_lsb_minus4 + 4)) - 1);
2703#endif
2704 }
2705
2706 for (i = 0; i < sps->sps_num_extra_ph_bytes * 8; i++) {
2707 if (sps->sps_extra_ph_bit_present_flag[i])
2708 flags(ph_extra_bit[i], 1, i);
2709 }
2710 if (sps->sps_poc_msb_cycle_flag) {
2711 flag(ph_poc_msb_cycle_present_flag);
2712 if (current->ph_poc_msb_cycle_present_flag)
2713 ub(sps->sps_poc_msb_cycle_len_minus1 + 1, ph_poc_msb_cycle_val);
2714 }
2715 if (sps->sps_alf_enabled_flag && pps->pps_alf_info_in_ph_flag) {
2716 flag(ph_alf_enabled_flag);
2717 if (current->ph_alf_enabled_flag) {
2718
2719 ub(3, ph_num_alf_aps_ids_luma);
2720 for (i = 0; i < current->ph_num_alf_aps_ids_luma; i++)
2721 ubs(3, ph_alf_aps_id_luma[i], 1, i);
2722
2723 if (sps->sps_chroma_format_idc != 0) {
2724 flag(ph_alf_cb_enabled_flag);
2725 flag(ph_alf_cr_enabled_flag);
2726 } else {
2727 infer(ph_alf_cb_enabled_flag, 0);
2728 infer(ph_alf_cr_enabled_flag, 0);
2729 }
2730
2731 if (current->ph_alf_cb_enabled_flag
2732 || current->ph_alf_cr_enabled_flag) {
2733 ub(3, ph_alf_aps_id_chroma);
2734 }
2735
2736 if (sps->sps_ccalf_enabled_flag) {
2737 flag(ph_alf_cc_cb_enabled_flag);
2738 if (current->ph_alf_cc_cb_enabled_flag)
2739 ub(3, ph_alf_cc_cb_aps_id);
2740 flag(ph_alf_cc_cr_enabled_flag);
2741 if (current->ph_alf_cc_cr_enabled_flag)
2742 ub(3, ph_alf_cc_cr_aps_id);
2743 }
2744 }
2745 } else {
2746 infer(ph_alf_enabled_flag, 0);
2747 }
2748 if (sps->sps_lmcs_enabled_flag) {
2749 flag(ph_lmcs_enabled_flag);
2750 if (current->ph_lmcs_enabled_flag) {
2751 ub(2, ph_lmcs_aps_id);
2752 if (sps->sps_chroma_format_idc != 0)
2753 flag(ph_chroma_residual_scale_flag);
2754 else
2755 infer(ph_chroma_residual_scale_flag, 0);
2756 }
2757 } else {
2758 infer(ph_lmcs_enabled_flag, 0);
2759 infer(ph_chroma_residual_scale_flag, 0);
2760 }
2761
2762 if (sps->sps_explicit_scaling_list_enabled_flag) {
2763 flag(ph_explicit_scaling_list_enabled_flag);
2764 if (current->ph_explicit_scaling_list_enabled_flag) {
2765 //todo: check the ph_scaling_list_aps_id range, when aps ready
2766 ub(3, ph_scaling_list_aps_id);
2767 }
2768 } else {
2769 infer(ph_explicit_scaling_list_enabled_flag, 0);
2770 }
2771 if (sps->sps_virtual_boundaries_enabled_flag &&
2772 !sps->sps_virtual_boundaries_present_flag) {
2773 flag(ph_virtual_boundaries_present_flag);
2774 if (current->ph_virtual_boundaries_present_flag) {
2775 ue(ph_num_ver_virtual_boundaries,
2776 0, pps->pps_pic_width_in_luma_samples <= 8 ? 0 : VVC_MAX_VBS);
2777 for (i = 0; i < current->ph_num_ver_virtual_boundaries; i++) {
2778 ues(ph_virtual_boundary_pos_x_minus1[i],
2779 0, (pps->pps_pic_width_in_luma_samples + 7) / 8 - 2, 1, i);
2780 }
2781 ue(ph_num_hor_virtual_boundaries,
2782 0, pps->pps_pic_height_in_luma_samples <= 8 ? 0 : VVC_MAX_VBS);
2783 for (i = 0; i < current->ph_num_hor_virtual_boundaries; i++) {
2784 ues(ph_virtual_boundary_pos_y_minus1[i],
2785 0, (pps->pps_pic_height_in_luma_samples + 7) / 8 - 2, 1, i);
2786 }
2787 } else {
2788 infer(ph_num_ver_virtual_boundaries, 0);
2789 infer(ph_num_hor_virtual_boundaries, 0);
2790 }
2791 }
2792 if (pps->pps_output_flag_present_flag && !current->ph_non_ref_pic_flag)
2793 flag(ph_pic_output_flag);
2794 else
2795 infer(ph_pic_output_flag, 1);
2796 if (pps->pps_rpl_info_in_ph_flag) {
2797 CHECK(FUNC(ref_pic_lists)
2798 (ctx, rw, sps, pps, &current->ph_ref_pic_lists));
2799 }
2800 if (sps->sps_partition_constraints_override_enabled_flag)
2801 flag(ph_partition_constraints_override_flag);
2802 else
2803 infer(ph_partition_constraints_override_flag, 0);
2804
2805 ctb_log2_size_y = sps->sps_log2_ctu_size_minus5 + 5;
2806 min_cb_log2_size_y = sps->sps_log2_min_luma_coding_block_size_minus2 + 2;
2807 if (current->ph_intra_slice_allowed_flag) {
2808 if (current->ph_partition_constraints_override_flag) {
2809 ue(ph_log2_diff_min_qt_min_cb_intra_slice_luma,
2810 0, FFMIN(6, ctb_log2_size_y) - min_cb_log2_size_y);
2811 ue(ph_max_mtt_hierarchy_depth_intra_slice_luma,
2812 0, 2 * (ctb_log2_size_y - min_cb_log2_size_y));
2813 if (current->ph_max_mtt_hierarchy_depth_intra_slice_luma != 0) {
2814 min_qt_log2_size_intra_y =
2815 current->ph_log2_diff_min_qt_min_cb_intra_slice_luma +
2816 min_cb_log2_size_y;
2817 ue(ph_log2_diff_max_bt_min_qt_intra_slice_luma,
2818 0, (sps->sps_qtbtt_dual_tree_intra_flag ?
2819 FFMIN(6, ctb_log2_size_y) :
2820 ctb_log2_size_y) - min_qt_log2_size_intra_y);
2821 ue(ph_log2_diff_max_tt_min_qt_intra_slice_luma,
2822 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_intra_y);
2823 } else {
2824 infer(ph_log2_diff_max_bt_min_qt_intra_slice_luma,
2825 sps->sps_log2_diff_max_bt_min_qt_intra_slice_luma);
2826 infer(ph_log2_diff_max_tt_min_qt_intra_slice_luma,
2827 sps->sps_log2_diff_max_tt_min_qt_intra_slice_luma);
2828 }
2829 if (sps->sps_qtbtt_dual_tree_intra_flag) {
2830 ue(ph_log2_diff_min_qt_min_cb_intra_slice_chroma,
2831 0, FFMIN(6, ctb_log2_size_y) - min_cb_log2_size_y);
2832 ue(ph_max_mtt_hierarchy_depth_intra_slice_chroma,
2833 0, 2 * (ctb_log2_size_y - min_cb_log2_size_y));
2834 if (current->ph_max_mtt_hierarchy_depth_intra_slice_chroma != 0) {
2835 unsigned int min_qt_log2_size_intra_c =
2836 current->ph_log2_diff_min_qt_min_cb_intra_slice_chroma +
2837 min_cb_log2_size_y;
2838 ue(ph_log2_diff_max_bt_min_qt_intra_slice_chroma,
2839 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_intra_c);
2840 ue(ph_log2_diff_max_tt_min_qt_intra_slice_chroma,
2841 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_intra_c);
2842 } else {
2843 infer(ph_log2_diff_max_bt_min_qt_intra_slice_chroma,
2844 sps->sps_log2_diff_max_bt_min_qt_intra_slice_chroma);
2845 infer(ph_log2_diff_max_tt_min_qt_intra_slice_chroma,
2846 sps->sps_log2_diff_max_tt_min_qt_intra_slice_chroma);
2847 }
2848 }
2849 } else {
2850 infer(ph_log2_diff_min_qt_min_cb_intra_slice_luma,
2851 sps->sps_log2_diff_min_qt_min_cb_intra_slice_luma);
2852 infer(ph_max_mtt_hierarchy_depth_intra_slice_luma,
2853 sps->sps_max_mtt_hierarchy_depth_intra_slice_luma);
2854 infer(ph_log2_diff_max_bt_min_qt_intra_slice_luma,
2855 sps->sps_log2_diff_max_bt_min_qt_intra_slice_luma);
2856 infer(ph_log2_diff_max_tt_min_qt_intra_slice_luma,
2857 sps->sps_log2_diff_max_tt_min_qt_intra_slice_luma);
2858 infer(ph_log2_diff_min_qt_min_cb_intra_slice_chroma,
2859 sps->sps_log2_diff_min_qt_min_cb_intra_slice_chroma);
2860 infer(ph_max_mtt_hierarchy_depth_intra_slice_chroma,
2861 sps->sps_max_mtt_hierarchy_depth_intra_slice_chroma);
2862 infer(ph_log2_diff_max_bt_min_qt_intra_slice_chroma,
2863 sps->sps_log2_diff_max_bt_min_qt_intra_slice_chroma);
2864 infer(ph_log2_diff_max_tt_min_qt_intra_slice_chroma,
2865 sps->sps_log2_diff_max_tt_min_qt_intra_slice_chroma);
2866 }
2867
2868 min_qt_log2_size_intra_y =
2869 current->ph_log2_diff_min_qt_min_cb_intra_slice_luma +
2870 min_cb_log2_size_y;
2871 if (pps->pps_cu_qp_delta_enabled_flag)
2872 ue(ph_cu_qp_delta_subdiv_intra_slice, 0,
2873 2 * (ctb_log2_size_y - min_qt_log2_size_intra_y +
2874 current->ph_max_mtt_hierarchy_depth_intra_slice_luma));
2875 else
2876 infer(ph_cu_qp_delta_subdiv_intra_slice, 0);
2877
2878 if (pps->pps_cu_chroma_qp_offset_list_enabled_flag)
2879 ue(ph_cu_chroma_qp_offset_subdiv_intra_slice, 0,
2880 2 * (ctb_log2_size_y - min_qt_log2_size_intra_y +
2881 current->ph_max_mtt_hierarchy_depth_intra_slice_luma));
2882 else
2883 infer(ph_cu_chroma_qp_offset_subdiv_intra_slice, 0);
2884 }
2885 if (current->ph_inter_slice_allowed_flag) {
2886 if (current->ph_partition_constraints_override_flag) {
2887 ue(ph_log2_diff_min_qt_min_cb_inter_slice,
2888 0, FFMIN(6, ctb_log2_size_y) - min_cb_log2_size_y);
2889 min_qt_log2_size_inter_y =
2890 current->ph_log2_diff_min_qt_min_cb_inter_slice +
2891 min_cb_log2_size_y;
2892 ue(ph_max_mtt_hierarchy_depth_inter_slice, 0,
2893 2 * (ctb_log2_size_y - min_cb_log2_size_y));
2894 if (current->ph_max_mtt_hierarchy_depth_inter_slice != 0) {
2895 ue(ph_log2_diff_max_bt_min_qt_inter_slice,
2896 0, ctb_log2_size_y - min_qt_log2_size_inter_y);
2897 ue(ph_log2_diff_max_tt_min_qt_inter_slice,
2898 0, FFMIN(6, ctb_log2_size_y) - min_qt_log2_size_inter_y);
2899 }
2900 } else {
2901 infer(ph_log2_diff_min_qt_min_cb_inter_slice,
2902 sps->sps_log2_diff_min_qt_min_cb_inter_slice);
2903 min_qt_log2_size_inter_y =
2904 current->ph_log2_diff_min_qt_min_cb_inter_slice +
2905 min_cb_log2_size_y;
2906 infer(ph_max_mtt_hierarchy_depth_inter_slice,
2907 sps->sps_max_mtt_hierarchy_depth_inter_slice);
2908 infer(ph_log2_diff_max_bt_min_qt_inter_slice,
2909 sps->sps_log2_diff_max_bt_min_qt_inter_slice);
2910 infer(ph_log2_diff_max_tt_min_qt_inter_slice,
2911 sps->sps_log2_diff_max_tt_min_qt_inter_slice);
2912 }
2913
2914 if (pps->pps_cu_qp_delta_enabled_flag)
2915 ue(ph_cu_qp_delta_subdiv_inter_slice, 0,
2916 2 * (ctb_log2_size_y - min_qt_log2_size_inter_y +
2917 current->ph_max_mtt_hierarchy_depth_inter_slice));
2918 else
2919 infer(ph_cu_qp_delta_subdiv_inter_slice, 0);
2920
2921 if (pps->pps_cu_chroma_qp_offset_list_enabled_flag)
2922 ue(ph_cu_chroma_qp_offset_subdiv_inter_slice, 0,
2923 2 * (ctb_log2_size_y - min_qt_log2_size_inter_y +
2924 current->ph_max_mtt_hierarchy_depth_inter_slice));
2925 else
2926 infer(ph_cu_chroma_qp_offset_subdiv_inter_slice, 0);
2927 if (sps->sps_temporal_mvp_enabled_flag) {
2928 flag(ph_temporal_mvp_enabled_flag);
2929 if (current->ph_temporal_mvp_enabled_flag &&
2930 pps->pps_rpl_info_in_ph_flag) {
2931 if (current->ph_ref_pic_lists.rpl_ref_list[1].num_ref_entries > 0)
2932 flag(ph_collocated_from_l0_flag);
2933 else
2934 infer(ph_collocated_from_l0_flag, 1);
2935 if ((current->ph_collocated_from_l0_flag &&
2936 current->ph_ref_pic_lists.rpl_ref_list[0].num_ref_entries > 1)
2937 || (!current->ph_collocated_from_l0_flag &&
2938 current->ph_ref_pic_lists.rpl_ref_list[1].num_ref_entries > 1)) {
2939 unsigned int idx =
2940 current->ph_collocated_from_l0_flag ? 0 : 1;
2941 ue(ph_collocated_ref_idx, 0,
2942 current->ph_ref_pic_lists.rpl_ref_list[idx].
2943 num_ref_entries - 1);
2944 } else {
2945 infer(ph_collocated_ref_idx, 0);
2946 }
2947 }
2948 }
2949 if (sps->sps_mmvd_fullpel_only_enabled_flag)
2950 flag(ph_mmvd_fullpel_only_flag);
2951 else
2952 infer(ph_mmvd_fullpel_only_flag, 0);
2953 if (!pps->pps_rpl_info_in_ph_flag ||
2954 current->ph_ref_pic_lists.rpl_ref_list[1].num_ref_entries > 0) {
2955 flag(ph_mvd_l1_zero_flag);
2956 if (sps->sps_bdof_control_present_in_ph_flag) {
2957 flag(ph_bdof_disabled_flag);
2958 } else {
2959 if (!sps->sps_bdof_control_present_in_ph_flag)
2960 infer(ph_bdof_disabled_flag,
2961 1 - sps->sps_bdof_enabled_flag);
2962 else
2963 infer(ph_bdof_disabled_flag, 1);
2964 }
2965 if (sps->sps_dmvr_control_present_in_ph_flag) {
2966 flag(ph_dmvr_disabled_flag);
2967 } else {
2968 if (!sps->sps_dmvr_control_present_in_ph_flag)
2969 infer(ph_dmvr_disabled_flag,
2970 1 - sps->sps_dmvr_enabled_flag);
2971 else
2972 infer(ph_dmvr_disabled_flag, 1);
2973 }
2974 } else {
2975 infer(ph_mvd_l1_zero_flag, 1);
2976 }
2977 if (sps->sps_prof_control_present_in_ph_flag)
2978 flag(ph_prof_disabled_flag);
2979 else
2980 infer(ph_prof_disabled_flag, !sps->sps_affine_prof_enabled_flag);
2981 if ((pps->pps_weighted_pred_flag ||
2982 pps->pps_weighted_bipred_flag) && pps->pps_wp_info_in_ph_flag) {
2983
2984 // if pps->pps_wp_info_in_ph_fla == 1
2985 // pred_weight_table will not use num_ref_idx_active
2986 uint8_t num_ref_idx_active[2] = { 0, 0 };
2987 CHECK(FUNC(pred_weight_table)
2988 (ctx, rw, sps, pps, &current->ph_ref_pic_lists,
2989 num_ref_idx_active, &current->ph_pred_weight_table));
2990 }
2991 }
2992
2993 qp_bd_offset = 6 * sps->sps_bitdepth_minus8;
2994 if (pps->pps_qp_delta_info_in_ph_flag)
2995 se(ph_qp_delta, -qp_bd_offset - (26 + pps->pps_init_qp_minus26),
2996 63 - (26 + pps->pps_init_qp_minus26));
2997
2998 if (sps->sps_joint_cbcr_enabled_flag)
2999 flag(ph_joint_cbcr_sign_flag);
3000 else
3001 infer(ph_joint_cbcr_sign_flag, 0);
3002 if (sps->sps_sao_enabled_flag && pps->pps_sao_info_in_ph_flag) {
3003 flag(ph_sao_luma_enabled_flag);
3004 if (sps->sps_chroma_format_idc != 0)
3005 flag(ph_sao_chroma_enabled_flag);
3006 else
3007 infer(ph_sao_chroma_enabled_flag, 0);
3008 } else {
3009 infer(ph_sao_luma_enabled_flag, 0);
3010 infer(ph_sao_chroma_enabled_flag, 0);
3011 }
3012
3013 if (pps->pps_dbf_info_in_ph_flag)
3014 flag(ph_deblocking_params_present_flag);
3015 else
3016 infer(ph_deblocking_params_present_flag, 0);
3017
3018 if (current->ph_deblocking_params_present_flag) {
3019 if (!pps->pps_deblocking_filter_disabled_flag) {
3020 flag(ph_deblocking_filter_disabled_flag);
3021 if (!current->ph_deblocking_filter_disabled_flag) {
3022 se(ph_luma_beta_offset_div2, -12, 12);
3023 se(ph_luma_tc_offset_div2, -12, 12);
3024 if (pps->pps_chroma_tool_offsets_present_flag) {
3025 se(ph_cb_beta_offset_div2, -12, 12);
3026 se(ph_cb_tc_offset_div2, -12, 12);
3027 se(ph_cr_beta_offset_div2, -12, 12);
3028 se(ph_cr_tc_offset_div2, -12, 12);
3029 } else {
3030 infer(ph_cb_beta_offset_div2,
3031 current->ph_luma_beta_offset_div2);
3032 infer(ph_cb_tc_offset_div2,
3033 current->ph_luma_tc_offset_div2);
3034 infer(ph_cr_beta_offset_div2,
3035 current->ph_luma_beta_offset_div2);
3036 infer(ph_cr_tc_offset_div2,
3037 current->ph_luma_tc_offset_div2);
3038 }
3039 }
3040 } else {
3041 infer(ph_deblocking_filter_disabled_flag, 0);
3042 }
3043 } else {
3044 infer(ph_deblocking_filter_disabled_flag, pps->pps_deblocking_filter_disabled_flag);
3045 if (!current->ph_deblocking_filter_disabled_flag) {
3046 infer(ph_luma_beta_offset_div2, pps->pps_luma_beta_offset_div2);
3047 infer(ph_luma_tc_offset_div2, pps->pps_luma_tc_offset_div2);
3048 infer(ph_cb_beta_offset_div2, pps->pps_cb_beta_offset_div2);
3049 infer(ph_cb_tc_offset_div2, pps->pps_cb_tc_offset_div2);
3050 infer(ph_cr_beta_offset_div2, pps->pps_cr_beta_offset_div2);
3051 infer(ph_cr_tc_offset_div2, pps->pps_cr_tc_offset_div2);
3052 }
3053 }
3054
3055 if (pps->pps_picture_header_extension_present_flag) {
3056 ue(ph_extension_length, 0, 256);
3057 for (i = 0; i < current->ph_extension_length; i++)
3058 us(8, ph_extension_data_byte[i], 0x00, 0xff, 1, i);
3059 }
3060
3061 return 0;
3062}
3063
3064static int FUNC(ph) (CodedBitstreamContext *ctx, RWContext *rw,
3065 H266RawPH *current)
3066{
3067 int err;
3068
3069 HEADER("Picture Header");
3070
3071 CHECK(FUNC(nal_unit_header) (ctx, rw, &current->nal_unit_header, VVC_PH_NUT));
3072 CHECK(FUNC(picture_header) (ctx, rw, &current->ph_picture_header));
3073 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
3074 return 0;
3075}
3076
3077static int FUNC(slice_header) (CodedBitstreamContext *ctx, RWContext *rw,
3078 H266RawSliceHeader *current)
3079{
3080 CodedBitstreamH266Context *h266 = ctx->priv_data;
3081 const H266RawSPS *sps;
3082 const H266RawPPS *pps;
3083 const H266RawPictureHeader *ph;
3084 const H266RefPicLists *ref_pic_lists;
3085 int err, i;
3086 uint8_t nal_unit_type, qp_bd_offset;
3087 uint16_t num_slices_in_subpic;
3088
3089 HEADER("Slice Header");
3090
3091 CHECK(FUNC(nal_unit_header) (ctx, rw, &current->nal_unit_header, -1));
3092
3093 flag(sh_picture_header_in_slice_header_flag);
3094 if (current->sh_picture_header_in_slice_header_flag) {
3095 // 7.4.8 if sh_picture_header_in_slice_header_flag is true, we do not have a PH NAL unit
3096 CHECK(FUNC(picture_header) (ctx, rw, &current->sh_picture_header));
3097 ph = &current->sh_picture_header;
3098 } else {
3099 ph = h266->ph;
3100 if (!ph) {
3101 av_log(ctx->log_ctx, AV_LOG_ERROR,
3102 "Picture header not available.\n");
3103 return AVERROR_INVALIDDATA;
3104 }
3105 }
3106
3107 pps = h266->pps[ph->ph_pic_parameter_set_id];
3108 if (!pps) {
3109 av_log(ctx->log_ctx, AV_LOG_ERROR, "PPS id %d not available.\n",
3110 ph->ph_pic_parameter_set_id);
3111 return AVERROR_INVALIDDATA;
3112 }
3113 sps = h266->sps[pps->pps_seq_parameter_set_id];
3114 if (!sps) {
3115 av_log(ctx->log_ctx, AV_LOG_ERROR, "SPS id %d not available.\n",
3116 pps->pps_seq_parameter_set_id);
3117 return AVERROR_INVALIDDATA;
3118 }
3119
3120 if (sps->sps_subpic_info_present_flag) {
3121 ub(sps->sps_subpic_id_len_minus1 + 1, sh_subpic_id);
3122 for (i = 0; i <= sps->sps_num_subpics_minus1; i++) {
3123 if (pps->sub_pic_id_val[i] == current->sh_subpic_id) {
3124 current->curr_subpic_idx = i;
3125 break;
3126 }
3127 }
3128 if (i > sps->sps_num_subpics_minus1) {
3129 av_log(ctx->log_ctx, AV_LOG_ERROR, "invalid CurrSubpicIdx %d\n", i);
3130 return AVERROR_INVALIDDATA;
3131 }
3132 } else {
3133 current->curr_subpic_idx = 0;
3134 }
3135
3136 num_slices_in_subpic = pps->num_slices_in_subpic[current->curr_subpic_idx];
3137
3138 if ((pps->pps_rect_slice_flag && num_slices_in_subpic > 1) ||
3139 (!pps->pps_rect_slice_flag && pps->num_tiles_in_pic > 1)) {
3140 unsigned int bits, max;
3141 if (!pps->pps_rect_slice_flag) {
3142 bits = av_ceil_log2(pps->num_tiles_in_pic);
3143 max = pps->num_tiles_in_pic - 1;
3144 } else {
3145 bits = av_ceil_log2(num_slices_in_subpic);
3146 max = num_slices_in_subpic - 1;
3147 }
3148 u(bits, sh_slice_address, 0, max);
3149 } else {
3150 infer(sh_slice_address, 0);
3151 }
3152
3153 for (i = 0; i < sps->sps_num_extra_sh_bytes * 8; i++) {
3154 if (sps->sps_extra_sh_bit_present_flag[i])
3155 flags(sh_extra_bit[i], 1, i);
3156 }
3157
3158 if (!pps->pps_rect_slice_flag &&
3159 pps->num_tiles_in_pic - current->sh_slice_address > 1)
3160 ue(sh_num_tiles_in_slice_minus1, 0, pps->num_tiles_in_pic - 1 - current->sh_slice_address);
3161 else
3162 infer(sh_num_tiles_in_slice_minus1, 0);
3163
3164 if (ph->ph_inter_slice_allowed_flag)
3165 ue(sh_slice_type, 0, 2);
3166 else
3167 infer(sh_slice_type, 2);
3168
3169 nal_unit_type = current->nal_unit_header.nal_unit_type;
3170 if (nal_unit_type == VVC_IDR_W_RADL || nal_unit_type == VVC_IDR_N_LP ||
3171 nal_unit_type == VVC_CRA_NUT || nal_unit_type == VVC_GDR_NUT)
3172 flag(sh_no_output_of_prior_pics_flag);
3173
3174 if (sps->sps_alf_enabled_flag) {
3175 if (!pps->pps_alf_info_in_ph_flag) {
3176 flag(sh_alf_enabled_flag);
3177 if (current->sh_alf_enabled_flag) {
3178 ub(3, sh_num_alf_aps_ids_luma);
3179 for (i = 0; i < current->sh_num_alf_aps_ids_luma; i++)
3180 ubs(3, sh_alf_aps_id_luma[i], 1, i);
3181
3182 if (sps->sps_chroma_format_idc != 0) {
3183 flag(sh_alf_cb_enabled_flag);
3184 flag(sh_alf_cr_enabled_flag);
3185 }
3186 if (current->sh_alf_cb_enabled_flag ||
3187 current->sh_alf_cr_enabled_flag) {
3188 ub(3, sh_alf_aps_id_chroma);
3189 }
3190
3191 if (sps->sps_ccalf_enabled_flag) {
3192 flag(sh_alf_cc_cb_enabled_flag);
3193 if (current->sh_alf_cc_cb_enabled_flag)
3194 ub(3, sh_alf_cc_cb_aps_id);
3195
3196 flag(sh_alf_cc_cr_enabled_flag);
3197 if (current->sh_alf_cc_cr_enabled_flag)
3198 ub(3, sh_alf_cc_cr_aps_id);
3199 }
3200 }
3201 } else {
3202 infer(sh_alf_enabled_flag, ph->ph_alf_enabled_flag);
3203 if (current->sh_alf_enabled_flag) {
3204 infer(sh_num_alf_aps_ids_luma, ph->ph_num_alf_aps_ids_luma);
3205 for (i = 0; i < current->sh_num_alf_aps_ids_luma; i++)
3206 infer(sh_alf_aps_id_luma[i], ph->ph_alf_aps_id_luma[i]);
3207
3208 infer(sh_alf_cb_enabled_flag, ph->ph_alf_cb_enabled_flag);
3209 infer(sh_alf_cr_enabled_flag, ph->ph_alf_cr_enabled_flag);
3210 if (current->sh_alf_cb_enabled_flag ||current->sh_alf_cr_enabled_flag)
3211 infer(sh_alf_aps_id_chroma, ph->ph_alf_aps_id_chroma);
3212
3213 if (sps->sps_ccalf_enabled_flag) {
3214 infer(sh_alf_cc_cb_enabled_flag, ph->ph_alf_cc_cb_enabled_flag);
3215 if (current->sh_alf_cc_cb_enabled_flag)
3216 infer(sh_alf_cc_cb_aps_id, ph->ph_alf_cc_cb_aps_id);
3217
3218 infer(sh_alf_cc_cr_enabled_flag, ph->ph_alf_cc_cr_enabled_flag);
3219 if (current->sh_alf_cc_cr_enabled_flag)
3220 infer(sh_alf_cc_cr_aps_id, ph->ph_alf_cc_cr_aps_id);
3221 }
3222 }
3223 }
3224 }
3225
3226 if (current->sh_picture_header_in_slice_header_flag) {
3227 infer(sh_lmcs_used_flag, ph->ph_lmcs_enabled_flag);
3228 infer(sh_explicit_scaling_list_used_flag,
3229 ph->ph_explicit_scaling_list_enabled_flag);
3230 } else {
3231 if (ph->ph_lmcs_enabled_flag)
3232 flag(sh_lmcs_used_flag);
3233 else
3234 infer(sh_lmcs_used_flag, 0);
3235
3236 if (ph->ph_explicit_scaling_list_enabled_flag)
3237 flag(sh_explicit_scaling_list_used_flag);
3238 else
3239 infer(sh_explicit_scaling_list_used_flag, 0);
3240 }
3241
3242 if (!pps->pps_rpl_info_in_ph_flag &&
3243 ((nal_unit_type != VVC_IDR_W_RADL &&
3244 nal_unit_type != VVC_IDR_N_LP) || sps->sps_idr_rpl_present_flag)) {
3245 CHECK(FUNC(ref_pic_lists)
3246 (ctx, rw, sps, pps, &current->sh_ref_pic_lists));
3247 ref_pic_lists = &current->sh_ref_pic_lists;
3248 } else {
3249 ref_pic_lists = &ph->ph_ref_pic_lists;
3250 }
3251 if ((current->sh_slice_type != VVC_SLICE_TYPE_I &&
3252 ref_pic_lists->rpl_ref_list[0].num_ref_entries > 1) ||
3253 (current->sh_slice_type == VVC_SLICE_TYPE_B &&
3254 ref_pic_lists->rpl_ref_list[1].num_ref_entries > 1)) {
3255 flag(sh_num_ref_idx_active_override_flag);
3256 if (current->sh_num_ref_idx_active_override_flag) {
3257 for (i = 0;
3258 i < (current->sh_slice_type == VVC_SLICE_TYPE_B ? 2 : 1); i++)
3259 if (ref_pic_lists->rpl_ref_list[i].num_ref_entries > 1)
3260 ues(sh_num_ref_idx_active_minus1[i], 0, 14, 1, i);
3261 else
3262 infer(sh_num_ref_idx_active_minus1[i], 0);
3263 }
3264 } else {
3265 infer(sh_num_ref_idx_active_override_flag, 1);
3266 }
3267
3268 for (i = 0; i < 2; i++) {
3269 if (current->sh_slice_type == VVC_SLICE_TYPE_B ||
3270 (current->sh_slice_type == VVC_SLICE_TYPE_P && i == 0)) {
3271 if (current->sh_num_ref_idx_active_override_flag) {
3272 current->num_ref_idx_active[i] = current->sh_num_ref_idx_active_minus1[i] + 1;
3273 } else {
3274 current->num_ref_idx_active[i] =
3275 FFMIN(ref_pic_lists->rpl_ref_list[i].num_ref_entries,
3276 pps->pps_num_ref_idx_default_active_minus1[i] + 1);
3277 }
3278
3279 if (current->num_ref_idx_active[i] <= 0) {
3280 av_log(ctx->log_ctx, AV_LOG_ERROR,
3281 "Inter slice but no reference pictures available for RPL%d.\n", i);
3282 return AVERROR_INVALIDDATA;
3283 }
3284 } else {
3285 current->num_ref_idx_active[i] = 0;
3286 }
3287 }
3288
3289 if (current->sh_slice_type != VVC_SLICE_TYPE_I) {
3290 if (pps->pps_cabac_init_present_flag)
3291 flag(sh_cabac_init_flag);
3292 else
3293 infer(sh_cabac_init_flag, 0);
3294 if (ph->ph_temporal_mvp_enabled_flag) {
3295 if (!pps->pps_rpl_info_in_ph_flag) {
3296 if (current->sh_slice_type == VVC_SLICE_TYPE_B)
3297 flag(sh_collocated_from_l0_flag);
3298 else
3299 infer(sh_collocated_from_l0_flag, 1);
3300 if ((current->sh_collocated_from_l0_flag &&
3301 current->num_ref_idx_active[0] > 1) ||
3302 (!current->sh_collocated_from_l0_flag &&
3303 current->num_ref_idx_active[1] > 1)) {
3304 unsigned int idx = current->sh_collocated_from_l0_flag ? 0 : 1;
3305 ue(sh_collocated_ref_idx, 0, current->num_ref_idx_active[idx] - 1);
3306 } else {
3307 infer(sh_collocated_ref_idx, 0);
3308 }
3309 } else {
3310 if (current->sh_slice_type == VVC_SLICE_TYPE_B)
3311 infer(sh_collocated_from_l0_flag, ph->ph_collocated_from_l0_flag);
3312 else
3313 infer(sh_collocated_from_l0_flag, 1);
3314 infer(sh_collocated_ref_idx, ph->ph_collocated_ref_idx);
3315 }
3316 }
3317 if (!pps->pps_wp_info_in_ph_flag &&
3318 ((pps->pps_weighted_pred_flag &&
3319 current->sh_slice_type == VVC_SLICE_TYPE_P) ||
3320 (pps->pps_weighted_bipred_flag &&
3321 current->sh_slice_type == VVC_SLICE_TYPE_B))) {
3322 CHECK(FUNC(pred_weight_table) (ctx, rw, sps, pps, ref_pic_lists,
3323 current->num_ref_idx_active,
3324 &current->sh_pred_weight_table));
3325 }
3326 }
3327 qp_bd_offset = 6 * sps->sps_bitdepth_minus8;
3328 if (!pps->pps_qp_delta_info_in_ph_flag)
3329 se(sh_qp_delta, -qp_bd_offset - (26 + pps->pps_init_qp_minus26),
3330 63 - (26 + pps->pps_init_qp_minus26));
3331 if (pps->pps_slice_chroma_qp_offsets_present_flag) {
3332 int8_t off;
3333
3334 se(sh_cb_qp_offset, -12, 12);
3335 off = pps->pps_cb_qp_offset + current->sh_cb_qp_offset;
3336 if (off < -12 || off > 12) {
3337 av_log(ctx->log_ctx, AV_LOG_ERROR,
3338 "pps_cb_qp_offset + sh_cb_qp_offset (%d) not in range [-12, 12].\n",
3339 off);
3340 return AVERROR_INVALIDDATA;
3341 }
3342
3343 se(sh_cr_qp_offset, -12, 12);
3344 off = pps->pps_cr_qp_offset + current->sh_cr_qp_offset;
3345 if (off < -12 || off > 12) {
3346 av_log(ctx->log_ctx, AV_LOG_ERROR,
3347 "pps_cr_qp_offset + sh_cr_qp_offset (%d) not in range [-12, 12].\n",
3348 off);
3349 return AVERROR_INVALIDDATA;
3350 }
3351
3352 if (sps->sps_joint_cbcr_enabled_flag) {
3353 se(sh_joint_cbcr_qp_offset, -12, 12);
3354 off =
3355 pps->pps_joint_cbcr_qp_offset_value +
3356 current->sh_joint_cbcr_qp_offset;
3357 if (off < -12 || off > 12) {
3358 av_log(ctx->log_ctx, AV_LOG_ERROR,
3359 "pps_joint_cbcr_qp_offset_value + sh_joint_cbcr_qp_offset (%d)"
3360 "not in range [-12, 12]. \n", off);
3361 return AVERROR_INVALIDDATA;
3362 }
3363 } else {
3364 infer(sh_joint_cbcr_qp_offset, 0);
3365 }
3366 } else {
3367 infer(sh_cb_qp_offset, 0);
3368 infer(sh_cr_qp_offset, 0);
3369 infer(sh_joint_cbcr_qp_offset, 0);
3370 }
3371 if (pps->pps_cu_chroma_qp_offset_list_enabled_flag)
3372 flag(sh_cu_chroma_qp_offset_enabled_flag);
3373 else
3374 infer(sh_cu_chroma_qp_offset_enabled_flag, 0);
3375 if (sps->sps_sao_enabled_flag && !pps->pps_sao_info_in_ph_flag) {
3376 flag(sh_sao_luma_used_flag);
3377 if (sps->sps_chroma_format_idc != 0)
3378 flag(sh_sao_chroma_used_flag);
3379 else
3380 infer(sh_sao_chroma_used_flag, ph->ph_sao_chroma_enabled_flag);
3381 } else {
3382 infer(sh_sao_luma_used_flag, ph->ph_sao_luma_enabled_flag);
3383 infer(sh_sao_chroma_used_flag, ph->ph_sao_chroma_enabled_flag);
3384 }
3385
3386 if (pps->pps_deblocking_filter_override_enabled_flag &&
3387 !pps->pps_dbf_info_in_ph_flag)
3388 flag(sh_deblocking_params_present_flag);
3389 else
3390 infer(sh_deblocking_params_present_flag, 0);
3391 if (current->sh_deblocking_params_present_flag) {
3392 if (!pps->pps_deblocking_filter_disabled_flag)
3393 flag(sh_deblocking_filter_disabled_flag);
3394 else
3395 infer(sh_deblocking_filter_disabled_flag, 0);
3396 if (!current->sh_deblocking_filter_disabled_flag) {
3397 se(sh_luma_beta_offset_div2, -12, 12);
3398 se(sh_luma_tc_offset_div2, -12, 12);
3399 if (pps->pps_chroma_tool_offsets_present_flag) {
3400 se(sh_cb_beta_offset_div2, -12, 12);
3401 se(sh_cb_tc_offset_div2, -12, 12);
3402 se(sh_cr_beta_offset_div2, -12, 12);
3403 se(sh_cr_tc_offset_div2, -12, 12);
3404 } else {
3405 infer(sh_cb_beta_offset_div2,
3406 current->sh_luma_beta_offset_div2);
3407 infer(sh_cb_tc_offset_div2, current->sh_luma_tc_offset_div2);
3408 infer(sh_cr_beta_offset_div2,
3409 current->sh_luma_beta_offset_div2);
3410 infer(sh_cr_tc_offset_div2, current->sh_luma_tc_offset_div2);
3411 }
3412 }
3413 } else {
3414 infer(sh_deblocking_filter_disabled_flag, ph->ph_deblocking_filter_disabled_flag);
3415 if (!current->sh_deblocking_filter_disabled_flag) {
3416 infer(sh_luma_beta_offset_div2, ph->ph_luma_beta_offset_div2);
3417 infer(sh_luma_tc_offset_div2, ph->ph_luma_tc_offset_div2);
3418 infer(sh_cb_beta_offset_div2, ph->ph_cb_beta_offset_div2);
3419 infer(sh_cb_tc_offset_div2, ph->ph_cb_tc_offset_div2);
3420 infer(sh_cr_beta_offset_div2, ph->ph_cr_beta_offset_div2);
3421 infer(sh_cr_tc_offset_div2, ph->ph_cr_tc_offset_div2);
3422 }
3423 }
3424
3425 if (sps->sps_dep_quant_enabled_flag)
3426 flag(sh_dep_quant_used_flag);
3427 else
3428 infer(sh_dep_quant_used_flag, 0);
3429
3430 if (sps->sps_sign_data_hiding_enabled_flag &&
3431 !current->sh_dep_quant_used_flag)
3432 flag(sh_sign_data_hiding_used_flag);
3433 else
3434 infer(sh_sign_data_hiding_used_flag, 0);
3435
3436 if (sps->sps_transform_skip_enabled_flag &&
3437 !current->sh_dep_quant_used_flag &&
3438 !current->sh_sign_data_hiding_used_flag)
3439 flag(sh_ts_residual_coding_disabled_flag);
3440 else
3441 infer(sh_ts_residual_coding_disabled_flag, 0);
3442
3443 if (!current->sh_ts_residual_coding_disabled_flag &&
3444 sps->sps_ts_residual_coding_rice_present_in_sh_flag)
3445 ub(3, sh_ts_residual_coding_rice_idx_minus1);
3446 else
3447 infer(sh_ts_residual_coding_rice_idx_minus1, 0);
3448
3449 if (sps->sps_reverse_last_sig_coeff_enabled_flag)
3450 flag(sh_reverse_last_sig_coeff_flag);
3451 else
3452 infer(sh_reverse_last_sig_coeff_flag, 0);
3453
3454 if (pps->pps_slice_header_extension_present_flag) {
3455 ue(sh_slice_header_extension_length, 0, 256);
3456 for (i = 0; i < current->sh_slice_header_extension_length; i++)
3457 us(8, sh_slice_header_extension_data_byte[i], 0x00, 0xff, 1, i);
3458 }
3459
3460 current->num_entry_points = 0;
3461 if (sps->sps_entry_point_offsets_present_flag) {
3462 uint8_t entropy_sync = sps->sps_entropy_coding_sync_enabled_flag;
3463 int height;
3464 if (pps->pps_rect_slice_flag) {
3465 int width_in_tiles;
3466 int slice_idx = current->sh_slice_address;
3467 for (i = 0; i < current->curr_subpic_idx; i++) {
3468 slice_idx += pps->num_slices_in_subpic[i];
3469 }
3470 if (slice_idx > pps->pps_num_slices_in_pic_minus1) {
3471 av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid slice address %d\n", slice_idx);
3472 return AVERROR_INVALIDDATA;
3473 }
3474
3475 if (pps->pps_single_slice_per_subpic_flag) {
3476 int width_in_ctus, height_in_ctus;
3477 if (sps->sps_subpic_info_present_flag) {
3478 width_in_ctus = sps->sps_subpic_width_minus1[slice_idx] + 1;
3479 height_in_ctus = sps->sps_subpic_height_minus1[slice_idx] + 1;
3480 } else {
3481 const int log2_ctb_size = sps->sps_log2_ctu_size_minus5 + 5;
3482 const int ctb_size = 1 << log2_ctb_size;
3483 width_in_ctus = (pps->pps_pic_width_in_luma_samples + ctb_size - 1) >> log2_ctb_size;
3484 height_in_ctus = (pps->pps_pic_height_in_luma_samples + ctb_size - 1) >> log2_ctb_size;
3485 }
3486
3487 const int subpic_l = sps->sps_subpic_ctu_top_left_x[slice_idx];
3488 const int subpic_r = subpic_l + width_in_ctus;
3489
3490 int ctb_x = 0, tile_x = 0;
3491 for (; ctb_x < subpic_l && tile_x < pps->num_tile_columns; tile_x++)
3492 ctb_x += pps->col_width_val[tile_x];
3493
3494 width_in_tiles = 0;
3495 for (; ctb_x < subpic_r && tile_x < pps->num_tile_columns; tile_x++) {
3496 ctb_x += pps->col_width_val[tile_x];
3497 width_in_tiles++;
3498 }
3499
3500 if (entropy_sync) {
3501 height = height_in_ctus;
3502 } else {
3503 const int subpic_t = sps->sps_subpic_ctu_top_left_y[slice_idx];
3504 const int subpic_b = subpic_t + height_in_ctus;
3505
3506 int ctb_y = 0, tile_y = 0, height_in_tiles;
3507 for (; ctb_y < subpic_t && tile_y < pps->num_tile_rows; tile_y++)
3508 ctb_y += pps->row_height_val[tile_y];
3509
3510 height_in_tiles = 0;
3511 for (; ctb_y < subpic_b && tile_y < pps->num_tile_rows; tile_y++) {
3512 ctb_y += pps->row_height_val[tile_y];
3513 height_in_tiles++;
3514 }
3515
3516 height = height_in_tiles;
3517 }
3518 } else {
3519 width_in_tiles =
3520 pps->pps_slice_width_in_tiles_minus1[slice_idx] + 1;
3521
3522 if (entropy_sync)
3523 height = pps->slice_height_in_ctus[slice_idx];
3524 else
3525 height = pps->pps_slice_height_in_tiles_minus1[slice_idx] + 1;
3526 }
3527
3528 current->num_entry_points = width_in_tiles * height;
3529 } else {
3530 int tile_idx;
3531 int tile_y;
3532 for (tile_idx = current->sh_slice_address;
3533 tile_idx <=
3534 current->sh_slice_address +
3535 current->sh_num_tiles_in_slice_minus1; tile_idx++) {
3536 tile_y = tile_idx / pps->num_tile_columns;
3537 height = pps->row_height_val[tile_y];
3538 current->num_entry_points += (entropy_sync ? height : 1);
3539 }
3540 }
3541 current->num_entry_points--;
3542 if (current->num_entry_points > VVC_MAX_ENTRY_POINTS) {
3543 av_log(ctx->log_ctx, AV_LOG_ERROR, "Too many entry points: "
3544 "%" PRIu32 ".\n", current->num_entry_points);
3545 return AVERROR_PATCHWELCOME;
3546 }
3547 if (current->num_entry_points > 0) {
3548 ue(sh_entry_offset_len_minus1, 0, 31);
3549 for (i = 0; i < current->num_entry_points; i++) {
3550 ubs(current->sh_entry_offset_len_minus1 + 1,
3551 sh_entry_point_offset_minus1[i], 1, i);
3552 }
3553 }
3554 }
3555 CHECK(FUNC(byte_alignment) (ctx, rw));
3556
3557 return 0;
3558}
3559
3560static int FUNC(sei) (CodedBitstreamContext *ctx, RWContext *rw,
3561 H266RawSEI *current, int prefix)
3562{
3563 int err;
3564
3565 if (prefix)
3566 HEADER("Prefix Supplemental Enhancement Information");
3567 else
3568 HEADER("Suffix Supplemental Enhancement Information");
3569
3570 CHECK(FUNC(nal_unit_header) (ctx, rw, &current->nal_unit_header,
3571 prefix ? VVC_PREFIX_SEI_NUT
3572 : VVC_SUFFIX_SEI_NUT));
3573
3574 CHECK(FUNC_SEI(message_list) (ctx, rw, &current->message_list, prefix));
3575
3576 CHECK(FUNC(rbsp_trailing_bits) (ctx, rw));
3577
3578 return 0;
3579}
ctx
static AVFormatContext * ctx
Definition api-movenc-test.c:49
FUNC
#define FUNC(a)
Definition bit_depth_template.c:104
bits_left
#define bits_left
Definition bitstream.h:116
ff_cbs_h2645_payload_extension_present
int ff_cbs_h2645_payload_extension_present(GetBitContext *gbc, uint32_t payload_size, int cur_pos)
payload_extension_present() - true if we are before the last 1-bit in the payload structure,...
Definition cbs_h2645.c:33
ff_cbs_h2645_read_more_rbsp_data
int ff_cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
Definition cbs_h2645.c:217
allocate
#define allocate(name, size)
Definition cbs_h264.c:140
flag
#define flag(name)
Definition cbs_h264.c:60
ue
#define ue(name, range_min, range_max)
Definition cbs_h264.c:61
ub
#define ub(width, name)
Definition cbs_h264.c:95
flags
#define flags(name, subs,...)
Definition cbs_h264.c:74
infer
#define infer(name, value)
Definition cbs_h264.c:131
bit_position
#define bit_position(rw)
Definition cbs_h264.c:137
byte_alignment
#define byte_alignment(rw)
Definition cbs_h264.c:138
ues
#define ues(name, range_min, range_max, subs,...)
Definition cbs_h264.c:76
i
#define i(width, name, range_min, range_max)
Definition cbs_h264.c:63
FUNC_SEI
#define FUNC_SEI(name)
Definition cbs_h264.c:44
RWContext
#define RWContext
Definition cbs_h264.c:93
ses
#define ses(name, range_min, range_max, subs,...)
Definition cbs_h264.c:82
xu
#define xu(width, name, var, range_min, range_max, subs,...)
Definition cbs_h264.c:101
se
#define se(name, range_min, range_max)
Definition cbs_h264.c:67
sei
static int FUNC sei(CodedBitstreamContext *ctx, RWContext *rw, H264RawSEI *current)
Definition cbs_h264_syntax_template.c:858
vui_parameters
static int FUNC vui_parameters(CodedBitstreamContext *ctx, RWContext *rw, H264RawVUI *current, H264RawSPS *sps)
Definition cbs_h264_syntax_template.c:111
rbsp_trailing_bits
static int FUNC rbsp_trailing_bits(CodedBitstreamContext *ctx, RWContext *rw)
Definition cbs_h264_syntax_template.c:19
aud
static int FUNC aud(CodedBitstreamContext *ctx, RWContext *rw, H264RawAUD *current)
Definition cbs_h264_syntax_template.c:875
nal_unit_header
static int FUNC nal_unit_header(CodedBitstreamContext *ctx, RWContext *rw, H264RawNALUnitHeader *current, uint32_t valid_type_mask)
Definition cbs_h264_syntax_template.c:30
pred_weight_table
static int FUNC pred_weight_table(CodedBitstreamContext *ctx, RWContext *rw, H264RawSliceHeader *current)
Definition cbs_h264_syntax_template.c:951
slice_header
static int FUNC slice_header(CodedBitstreamContext *ctx, RWContext *rw, H264RawSliceHeader *current)
Definition cbs_h264_syntax_template.c:1055
sps
static int FUNC sps(CodedBitstreamContext *ctx, RWContext *rw, H264RawSPS *current)
Definition cbs_h264_syntax_template.c:260
vui_parameters_default
static int FUNC vui_parameters_default(CodedBitstreamContext *ctx, RWContext *rw, H264RawVUI *current, H264RawSPS *sps)
Definition cbs_h264_syntax_template.c:220
vps
static int FUNC vps(CodedBitstreamContext *ctx, RWContext *rw, H265RawVPS *current)
Definition cbs_h265_syntax_template.c:423
profile_tier_level
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
extension_data
static int FUNC extension_data(CodedBitstreamContext *ctx, RWContext *rw, H265RawExtensionData *current)
Definition cbs_h265_syntax_template.c:61
scaling_list_data
static int FUNC scaling_list_data(CodedBitstreamContext *ctx, RWContext *rw, H265RawScalingList *current)
Definition cbs_h265_syntax_template.c:675
sps_range_extension
static int FUNC sps_range_extension(CodedBitstreamContext *ctx, RWContext *rw, H265RawSPS *current)
Definition cbs_h265_syntax_template.c:706
vui_payload
static int FUNC vui_payload(CodedBitstreamContext *ctx, RWContext *rw, H266RawVUI *current, uint16_t vui_payload_size, uint8_t chroma_format_idc)
Definition cbs_h266_syntax_template.c:346
payload_extension
static int FUNC payload_extension(CodedBitstreamContext *ctx, RWContext *rw, H266RawExtensionData *current, uint32_t payload_size, int cur_pos)
Definition cbs_h266_syntax_template.c:310
ph
static int FUNC ph(CodedBitstreamContext *ctx, RWContext *rw, H266RawPH *current)
Definition cbs_h266_syntax_template.c:3064
general_constraints_info
static int FUNC general_constraints_info(CodedBitstreamContext *ctx, RWContext *rw, H266GeneralConstraintsInfo *current)
Definition cbs_h266_syntax_template.c:60
alf_data
static int FUNC alf_data(CodedBitstreamContext *ctx, RWContext *rw, H266RawAPS *current)
Definition cbs_h266_syntax_template.c:2315
aps
static int FUNC aps(CodedBitstreamContext *ctx, RWContext *rw, H266RawAPS *current, int prefix)
Definition cbs_h266_syntax_template.c:2515
lmcs_data
static int FUNC lmcs_data(CodedBitstreamContext *ctx, RWContext *rw, H266RawAPS *current)
Definition cbs_h266_syntax_template.c:2426
general_timing_hrd_parameters
static int FUNC general_timing_hrd_parameters(CodedBitstreamContext *ctx, RWContext *rw, H266RawGeneralTimingHrdParameters *current)
Definition cbs_h266_syntax_template.c:558
opi
static int FUNC opi(CodedBitstreamContext *ctx, RWContext *rw, H266RawOPI *current)
Definition cbs_h266_syntax_template.c:643
ols_timing_hrd_parameters
static int FUNC ols_timing_hrd_parameters(CodedBitstreamContext *ctx, RWContext *rw, H266RawOlsTimingHrdParameters *current, uint8_t first_sublayer, uint8_t max_sublayers_minus1, const H266RawGeneralTimingHrdParameters *general)
Definition cbs_h266_syntax_template.c:609
ref_pic_lists
static int FUNC ref_pic_lists(CodedBitstreamContext *ctx, RWContext *rw, const H266RawSPS *sps, const H266RawPPS *pps, H266RefPicLists *current)
Definition cbs_h266_syntax_template.c:491
picture_header
static int FUNC picture_header(CodedBitstreamContext *ctx, RWContext *rw, H266RawPictureHeader *current)
Definition cbs_h266_syntax_template.c:2652
sublayer_hrd_parameters
static int FUNC sublayer_hrd_parameters(CodedBitstreamContext *ctx, RWContext *rw, H266RawSubLayerHRDParameters *current, int sublayer_id, const H266RawGeneralTimingHrdParameters *general)
Definition cbs_h266_syntax_template.c:586
dpb_parameters
static int FUNC dpb_parameters(CodedBitstreamContext *ctx, RWContext *rw, H266DpbParameters *current, uint8_t max_sublayers_minus1, uint8_t sublayer_info_flag)
Definition cbs_h266_syntax_template.c:394
dci
static int FUNC dci(CodedBitstreamContext *ctx, RWContext *rw, H266RawDCI *current)
Definition cbs_h266_syntax_template.c:670
ref_pic_list_struct
static int FUNC ref_pic_list_struct(CodedBitstreamContext *ctx, RWContext *rw, H266RefPicListStruct *current, uint8_t list_idx, uint8_t rpls_idx, const H266RawSPS *sps)
Definition cbs_h266_syntax_template.c:410
MAX_UINT_BITS
#define MAX_UINT_BITS(length)
Definition cbs_internal.h:238
bit
#define bit(string, value)
Definition cbs_mpeg2.c:56
message_list
int FUNC message_list(CodedBitstreamContext *ctx, RWContext *rw, SEIRawMessageList *current, int prefix)
Definition cbs_sei_syntax_template.c:425
AV_CEIL_RSHIFT
#define AV_CEIL_RSHIFT(a, b)
Definition common.h:60
av_ceil_log2
#define av_ceil_log2
Definition common.h:97
max
#define max(a, b)
Definition cuda_runtime.h:33
pps
uint64_t pps
Definition dovi_rpuenc.c:36
current
static struct @111144215057303131116103221376075045141373005341 current
bits
static const uint8_t bits[8]
Definition fastaudio.c:100
skip_bits_long
static void skip_bits_long(GetBitContext *s, int n)
Skips the specified number of bits.
Definition get_bits.h:280
skip_bits
static void skip_bits(GetBitContext *s, int n)
Definition get_bits.h:383
get_bits
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
Definition get_bits.h:337
AVERROR_PATCHWELCOME
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
Definition error.h:64
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition error.h:61
AVERROR
#define AVERROR(e)
Definition error.h:45
AV_LOG_DEBUG
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition log.h:231
AV_LOG_ERROR
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition log.h:210
ff_ctz
#define ff_ctz
Definition intmath.h:105
r
#define r
Definition input.c:42
fixed
#define fixed(width, name, value)
Definition cbs_apv.c:75
u
#define u(width, name, range_min, range_max)
Definition cbs_apv.c:68
us
#define us(width, name, range_min, range_max, subs,...)
Definition cbs_apv.c:70
ubs
#define ubs(width, name, subs,...)
Definition cbs_apv.c:72
CHECK
#define CHECK(call)
Definition cbs_apv.c:59
HEADER
#define HEADER(name)
Definition cbs_apv.c:55
VVC_SLICE_TYPE_I
@ VVC_SLICE_TYPE_I
Definition vvc.h:66
VVC_SLICE_TYPE_B
@ VVC_SLICE_TYPE_B
Definition vvc.h:64
VVC_SLICE_TYPE_P
@ VVC_SLICE_TYPE_P
Definition vvc.h:65
VVC_ASP_TYPE_LMCS
@ VVC_ASP_TYPE_LMCS
Definition vvc.h:71
VVC_ASP_TYPE_SCALING
@ VVC_ASP_TYPE_SCALING
Definition vvc.h:72
VVC_ASP_TYPE_ALF
@ VVC_ASP_TYPE_ALF
Definition vvc.h:70
VVC_MAX_VPS_COUNT
@ VVC_MAX_VPS_COUNT
Definition vvc.h:95
VVC_MAX_PPS_COUNT
@ VVC_MAX_PPS_COUNT
Definition vvc.h:99
VVC_MAX_REF_PIC_LISTS
@ VVC_MAX_REF_PIC_LISTS
Definition vvc.h:112
VVC_MAX_LAYERS
@ VVC_MAX_LAYERS
Definition vvc.h:80
VVC_MAX_ENTRY_POINTS
@ VVC_MAX_ENTRY_POINTS
Definition vvc.h:153
VVC_MAX_TOTAL_NUM_OLSS
@ VVC_MAX_TOTAL_NUM_OLSS
Definition vvc.h:92
VVC_MAX_REF_ENTRIES
@ VVC_MAX_REF_ENTRIES
Definition vvc.h:115
VVC_MAX_SLICES
@ VVC_MAX_SLICES
Definition vvc.h:144
VVC_MAX_WIDTH
@ VVC_MAX_WIDTH
Definition vvc.h:132
VVC_MAX_TILES_PER_AU
@ VVC_MAX_TILES_PER_AU
Definition vvc.h:136
VVC_MAX_SUBLAYERS
@ VVC_MAX_SUBLAYERS
Definition vvc.h:83
VVC_MAX_DPB_SIZE
@ VVC_MAX_DPB_SIZE
Definition vvc.h:109
VVC_NUM_ALF_FILTERS
@ VVC_NUM_ALF_FILTERS
Definition vvc.h:106
VVC_MAX_TILE_ROWS
@ VVC_MAX_TILE_ROWS
Definition vvc.h:139
VVC_MAX_VBS
@ VVC_MAX_VBS
Definition vvc.h:156
VVC_MAX_TILE_COLUMNS
@ VVC_MAX_TILE_COLUMNS
Definition vvc.h:141
VVC_MAX_HEIGHT
@ VVC_MAX_HEIGHT
Definition vvc.h:133
VVC_SPS_NUT
@ VVC_SPS_NUT
Definition vvc.h:44
VVC_PREFIX_SEI_NUT
@ VVC_PREFIX_SEI_NUT
Definition vvc.h:52
VVC_CRA_NUT
@ VVC_CRA_NUT
Definition vvc.h:38
VVC_IDR_N_LP
@ VVC_IDR_N_LP
Definition vvc.h:37
VVC_OPI_NUT
@ VVC_OPI_NUT
Definition vvc.h:41
VVC_SUFFIX_SEI_NUT
@ VVC_SUFFIX_SEI_NUT
Definition vvc.h:53
VVC_DCI_NUT
@ VVC_DCI_NUT
Definition vvc.h:42
VVC_PH_NUT
@ VVC_PH_NUT
Definition vvc.h:48
VVC_VPS_NUT
@ VVC_VPS_NUT
Definition vvc.h:43
VVC_IDR_W_RADL
@ VVC_IDR_W_RADL
Definition vvc.h:36
VVC_GDR_NUT
@ VVC_GDR_NUT
Definition vvc.h:39
VVC_AUD_NUT
@ VVC_AUD_NUT
Definition vvc.h:49
VVC_PREFIX_APS_NUT
@ VVC_PREFIX_APS_NUT
Definition vvc.h:46
VVC_PPS_NUT
@ VVC_PPS_NUT
Definition vvc.h:45
VVC_SUFFIX_APS_NUT
@ VVC_SUFFIX_APS_NUT
Definition vvc.h:47
FFMIN
#define FFMIN(a, b)
Definition macros.h:49
FFMAX
#define FFMAX(a, b)
Definition macros.h:47
av_refstruct_allocz
static void * av_refstruct_allocz(size_t size)
Equivalent to av_refstruct_alloc_ext(size, 0, NULL, NULL)
Definition refstruct.h:105
CodedBitstreamContext
Context structure for coded bitstream operations.
Definition cbs.h:226
CodedBitstreamH266Context::sps
H266RawSPS * sps[VVC_MAX_SPS_COUNT]
RefStruct references.
Definition cbs_h266.h:871
CodedBitstreamH266Context::pps
H266RawPPS * pps[VVC_MAX_PPS_COUNT]
RefStruct references.
Definition cbs_h266.h:872
CodedBitstreamH266Context::ph
H266RawPictureHeader * ph
Definition cbs_h266.h:873
CodedBitstreamH266Context::vps
H266RawVPS * vps[VVC_MAX_VPS_COUNT]
RefStruct references.
Definition cbs_h266.h:870
H266RefPicListStruct::num_ref_entries
uint8_t num_ref_entries
Definition cbs_h266.h:161
H266RefPicListStruct::inter_layer_ref_pic_flag
uint8_t inter_layer_ref_pic_flag[VVC_MAX_REF_ENTRIES]
Definition cbs_h266.h:163
H266RefPicListStruct::st_ref_pic_flag
uint8_t st_ref_pic_flag[VVC_MAX_REF_ENTRIES]
Definition cbs_h266.h:164
H266RefPicListStruct::ltrp_in_header_flag
uint8_t ltrp_in_header_flag
Definition cbs_h266.h:162
av_log
#define av_log(a,...)
Definition tableprint_vlc.h:27
tmp
static uint8_t tmp[40]
Definition aes_ctr.c:52
height
#define height
Definition dsp.h:99
width
#define width
Definition dsp.h:99
prefix
char prefix[8]
Definition uops_macros_gen.c:50
sh_slice_address
static int sh_slice_address(VVCSH *sh, const H266RawSPS *sps, const VVCPPS *pps)
Definition ps.c:1369
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