2 * HEVC Parameter Set decoding
4 * Copyright (C) 2012 - 2103 Guillaume Martres
5 * Copyright (C) 2012 - 2103 Mickael Raulet
6 * Copyright (C) 2012 - 2013 Gildas Cocherel
7 * Copyright (C) 2013 Vittorio Giovara
9 * This file is part of Libav.
11 * Libav is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * Libav is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with Libav; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/imgutils.h"
31 static const uint8_t default_scaling_list_intra[] = {
32 16, 16, 16, 16, 17, 18, 21, 24,
33 16, 16, 16, 16, 17, 19, 22, 25,
34 16, 16, 17, 18, 20, 22, 25, 29,
35 16, 16, 18, 21, 24, 27, 31, 36,
36 17, 17, 20, 24, 30, 35, 41, 47,
37 18, 19, 22, 27, 35, 44, 54, 65,
38 21, 22, 25, 31, 41, 54, 70, 88,
39 24, 25, 29, 36, 47, 65, 88, 115
42 static const uint8_t default_scaling_list_inter[] = {
43 16, 16, 16, 16, 17, 18, 20, 24,
44 16, 16, 16, 17, 18, 20, 24, 25,
45 16, 16, 17, 18, 20, 24, 25, 28,
46 16, 17, 18, 20, 24, 25, 28, 33,
47 17, 18, 20, 24, 25, 28, 33, 41,
48 18, 20, 24, 25, 28, 33, 41, 54,
49 20, 24, 25, 28, 33, 41, 54, 71,
50 24, 25, 28, 33, 41, 54, 71, 91
53 static const AVRational vui_sar[] = {
73 int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
74 const HEVCSPS *sps, int is_slice_header)
76 HEVCLocalContext *lc = &s->HEVClc;
77 uint8_t rps_predict = 0;
84 GetBitContext *gb = &lc->gb;
86 if (rps != sps->st_rps && sps->nb_st_rps)
87 rps_predict = get_bits1(gb);
90 const ShortTermRPS *rps_ridx;
91 int delta_rps, abs_delta_rps;
92 uint8_t use_delta_flag = 0;
93 uint8_t delta_rps_sign;
95 if (is_slice_header) {
96 int delta_idx = get_ue_golomb_long(gb) + 1;
97 if (delta_idx > sps->nb_st_rps) {
98 av_log(s->avctx, AV_LOG_ERROR,
99 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
100 delta_idx, sps->nb_st_rps);
101 return AVERROR_INVALIDDATA;
103 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
105 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
107 delta_rps_sign = get_bits1(gb);
108 abs_delta_rps = get_ue_golomb_long(gb) + 1;
109 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
110 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
111 int used = rps->used[k] = get_bits1(gb);
114 use_delta_flag = get_bits1(gb);
116 if (used || use_delta_flag) {
117 if (i < rps_ridx->num_delta_pocs)
118 delta_poc = delta_rps + rps_ridx->delta_poc[i];
120 delta_poc = delta_rps;
121 rps->delta_poc[k] = delta_poc;
130 rps->num_delta_pocs = k;
131 rps->num_negative_pics = k0;
132 // sort in increasing order (smallest first)
133 if (rps->num_delta_pocs != 0) {
135 for (i = 1; i < rps->num_delta_pocs; i++) {
136 delta_poc = rps->delta_poc[i];
138 for (k = i - 1; k >= 0; k--) {
139 tmp = rps->delta_poc[k];
140 if (delta_poc < tmp) {
141 rps->delta_poc[k + 1] = tmp;
142 rps->used[k + 1] = rps->used[k];
143 rps->delta_poc[k] = delta_poc;
149 if ((rps->num_negative_pics >> 1) != 0) {
151 k = rps->num_negative_pics - 1;
152 // flip the negative values to largest first
153 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
154 delta_poc = rps->delta_poc[i];
156 rps->delta_poc[i] = rps->delta_poc[k];
157 rps->used[i] = rps->used[k];
158 rps->delta_poc[k] = delta_poc;
164 unsigned int prev, nb_positive_pics;
165 rps->num_negative_pics = get_ue_golomb_long(gb);
166 nb_positive_pics = get_ue_golomb_long(gb);
168 if (rps->num_negative_pics >= MAX_REFS ||
169 nb_positive_pics >= MAX_REFS) {
170 av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
171 return AVERROR_INVALIDDATA;
174 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
175 if (rps->num_delta_pocs) {
177 for (i = 0; i < rps->num_negative_pics; i++) {
178 delta_poc = get_ue_golomb_long(gb) + 1;
180 rps->delta_poc[i] = prev;
181 rps->used[i] = get_bits1(gb);
184 for (i = 0; i < nb_positive_pics; i++) {
185 delta_poc = get_ue_golomb_long(gb) + 1;
187 rps->delta_poc[rps->num_negative_pics + i] = prev;
188 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
195 static int decode_profile_tier_level(HEVCLocalContext *lc, PTL *ptl,
196 int max_num_sub_layers)
199 GetBitContext *gb = &lc->gb;
201 ptl->general_profile_space = get_bits(gb, 2);
202 ptl->general_tier_flag = get_bits1(gb);
203 ptl->general_profile_idc = get_bits(gb, 5);
204 for (i = 0; i < 32; i++)
205 ptl->general_profile_compatibility_flag[i] = get_bits1(gb);
206 skip_bits1(gb); // general_progressive_source_flag
207 skip_bits1(gb); // general_interlaced_source_flag
208 skip_bits1(gb); // general_non_packed_constraint_flag
209 skip_bits1(gb); // general_frame_only_constraint_flag
210 if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[0..15]
212 if (get_bits(gb, 16) != 0) // XXX_reserved_zero_44bits[16..31]
214 if (get_bits(gb, 12) != 0) // XXX_reserved_zero_44bits[32..43]
217 ptl->general_level_idc = get_bits(gb, 8);
218 for (i = 0; i < max_num_sub_layers - 1; i++) {
219 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
220 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
222 if (max_num_sub_layers - 1 > 0)
223 for (i = max_num_sub_layers - 1; i < 8; i++)
224 skip_bits(gb, 2); // reserved_zero_2bits[i]
225 for (i = 0; i < max_num_sub_layers - 1; i++) {
226 if (ptl->sub_layer_profile_present_flag[i]) {
227 ptl->sub_layer_profile_space[i] = get_bits(gb, 2);
228 ptl->sub_layer_tier_flag[i] = get_bits(gb, 1);
229 ptl->sub_layer_profile_idc[i] = get_bits(gb, 5);
230 for (j = 0; j < 32; j++)
231 ptl->sub_layer_profile_compatibility_flags[i][j] = get_bits1(gb);
232 skip_bits1(gb); // sub_layer_progressive_source_flag
233 skip_bits1(gb); // sub_layer_interlaced_source_flag
234 skip_bits1(gb); // sub_layer_non_packed_constraint_flag
235 skip_bits1(gb); // sub_layer_frame_only_constraint_flag
237 if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[0..15]
239 if (get_bits(gb, 16) != 0) // sub_layer_reserved_zero_44bits[16..31]
241 if (get_bits(gb, 12) != 0) // sub_layer_reserved_zero_44bits[32..43]
244 if (ptl->sub_layer_level_present_flag[i])
245 ptl->sub_layer_level_idc[i] = get_bits(gb, 8);
250 static void decode_sublayer_hrd(HEVCContext *s, int nb_cpb,
251 int subpic_params_present)
253 GetBitContext *gb = &s->HEVClc.gb;
256 for (i = 0; i < nb_cpb; i++) {
257 get_ue_golomb_long(gb); // bit_rate_value_minus1
258 get_ue_golomb_long(gb); // cpb_size_value_minus1
260 if (subpic_params_present) {
261 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
262 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
264 skip_bits1(gb); // cbr_flag
268 static void decode_hrd(HEVCContext *s, int common_inf_present,
271 GetBitContext *gb = &s->HEVClc.gb;
272 int nal_params_present = 0, vcl_params_present = 0;
273 int subpic_params_present = 0;
276 if (common_inf_present) {
277 nal_params_present = get_bits1(gb);
278 vcl_params_present = get_bits1(gb);
280 if (nal_params_present || vcl_params_present) {
281 subpic_params_present = get_bits1(gb);
283 if (subpic_params_present) {
284 skip_bits(gb, 8); // tick_divisor_minus2
285 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
286 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
287 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
290 skip_bits(gb, 4); // bit_rate_scale
291 skip_bits(gb, 4); // cpb_size_scale
293 if (subpic_params_present)
294 skip_bits(gb, 4); // cpb_size_du_scale
296 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
297 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
298 skip_bits(gb, 5); // dpb_output_delay_length_minus1
302 for (i = 0; i < max_sublayers; i++) {
305 int fixed_rate = get_bits1(gb);
308 fixed_rate = get_bits1(gb);
311 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
313 low_delay = get_bits1(gb);
316 nb_cpb = get_ue_golomb_long(gb) + 1;
318 if (nal_params_present)
319 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
320 if (vcl_params_present)
321 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
325 int ff_hevc_decode_nal_vps(HEVCContext *s)
328 GetBitContext *gb = &s->HEVClc.gb;
332 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
334 vps = av_mallocz(sizeof(*vps));
336 return AVERROR(ENOMEM);
338 vps_id = get_bits(gb, 4);
339 if (vps_id >= MAX_VPS_COUNT) {
340 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
344 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
345 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
349 vps->vps_max_layers = get_bits(gb, 6) + 1;
350 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
351 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
353 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
354 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
358 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
359 av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
360 vps->vps_max_sub_layers);
364 if (decode_profile_tier_level(&s->HEVClc, &vps->ptl, vps->vps_max_sub_layers) < 0) {
365 av_log(s->avctx, AV_LOG_ERROR, "Error decoding profile tier level.\n");
368 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
370 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
371 for (; i < vps->vps_max_sub_layers; i++) {
372 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
373 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
374 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
376 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
377 av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
378 vps->vps_max_dec_pic_buffering[i] - 1);
381 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
382 av_log(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
383 vps->vps_num_reorder_pics[i]);
388 vps->vps_max_layer_id = get_bits(gb, 6);
389 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
390 for (i = 1; i < vps->vps_num_layer_sets; i++)
391 for (j = 0; j <= vps->vps_max_layer_id; j++)
392 skip_bits(gb, 1); // layer_id_included_flag[i][j]
394 vps->vps_timing_info_present_flag = get_bits1(gb);
395 if (vps->vps_timing_info_present_flag) {
396 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
397 vps->vps_time_scale = get_bits_long(gb, 32);
398 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
399 if (vps->vps_poc_proportional_to_timing_flag)
400 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
401 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
402 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
403 int common_inf_present = 1;
405 get_ue_golomb_long(gb); // hrd_layer_set_idx
407 common_inf_present = get_bits1(gb);
408 decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
411 get_bits1(gb); /* vps_extension_flag */
413 av_free(s->vps_list[vps_id]);
414 s->vps_list[vps_id] = vps;
419 return AVERROR_INVALIDDATA;
422 static void decode_vui(HEVCContext *s, HEVCSPS *sps)
424 VUI *vui = &sps->vui;
425 GetBitContext *gb = &s->HEVClc.gb;
428 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
430 sar_present = get_bits1(gb);
432 uint8_t sar_idx = get_bits(gb, 8);
433 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
434 vui->sar = vui_sar[sar_idx];
435 else if (sar_idx == 255) {
436 vui->sar.num = get_bits(gb, 16);
437 vui->sar.den = get_bits(gb, 16);
439 av_log(s->avctx, AV_LOG_WARNING,
440 "Unknown SAR index: %u.\n", sar_idx);
443 vui->overscan_info_present_flag = get_bits1(gb);
444 if (vui->overscan_info_present_flag)
445 vui->overscan_appropriate_flag = get_bits1(gb);
447 vui->video_signal_type_present_flag = get_bits1(gb);
448 if (vui->video_signal_type_present_flag) {
449 vui->video_format = get_bits(gb, 3);
450 vui->video_full_range_flag = get_bits1(gb);
451 vui->colour_description_present_flag = get_bits1(gb);
452 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
453 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
454 if (vui->colour_description_present_flag) {
455 vui->colour_primaries = get_bits(gb, 8);
456 vui->transfer_characteristic = get_bits(gb, 8);
457 vui->matrix_coeffs = get_bits(gb, 8);
459 // Set invalid values to "unspecified"
460 if (vui->colour_primaries >= AVCOL_PRI_NB)
461 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
462 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
463 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
464 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
465 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
469 vui->chroma_loc_info_present_flag = get_bits1(gb);
470 if (vui->chroma_loc_info_present_flag) {
471 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
472 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
475 vui->neutra_chroma_indication_flag = get_bits1(gb);
476 vui->field_seq_flag = get_bits1(gb);
477 vui->frame_field_info_present_flag = get_bits1(gb);
479 vui->default_display_window_flag = get_bits1(gb);
480 if (vui->default_display_window_flag) {
481 //TODO: * 2 is only valid for 420
482 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
483 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
484 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
485 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
487 if (s->apply_defdispwin &&
488 s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
489 av_log(s->avctx, AV_LOG_DEBUG,
490 "discarding vui default display window, "
491 "original values are l:%u r:%u t:%u b:%u\n",
492 vui->def_disp_win.left_offset,
493 vui->def_disp_win.right_offset,
494 vui->def_disp_win.top_offset,
495 vui->def_disp_win.bottom_offset);
497 vui->def_disp_win.left_offset =
498 vui->def_disp_win.right_offset =
499 vui->def_disp_win.top_offset =
500 vui->def_disp_win.bottom_offset = 0;
504 vui->vui_timing_info_present_flag = get_bits1(gb);
505 if (vui->vui_timing_info_present_flag) {
506 vui->vui_num_units_in_tick = get_bits(gb, 32);
507 vui->vui_time_scale = get_bits(gb, 32);
508 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
509 if (vui->vui_poc_proportional_to_timing_flag)
510 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
511 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
512 if (vui->vui_hrd_parameters_present_flag)
513 decode_hrd(s, 1, sps->max_sub_layers);
516 vui->bitstream_restriction_flag = get_bits1(gb);
517 if (vui->bitstream_restriction_flag) {
518 vui->tiles_fixed_structure_flag = get_bits1(gb);
519 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
520 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
521 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
522 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
523 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
524 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
525 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
529 static void set_default_scaling_list_data(ScalingList *sl)
533 for (matrixId = 0; matrixId < 6; matrixId++) {
535 memset(sl->sl[0][matrixId], 16, 16);
536 sl->sl_dc[0][matrixId] = 16; // default for 16x16
537 sl->sl_dc[1][matrixId] = 16; // default for 32x32
539 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
540 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
541 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
542 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
543 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
544 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
545 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
546 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
547 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
548 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
549 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
550 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
551 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
552 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
555 static int scaling_list_data(HEVCContext *s, ScalingList *sl)
557 GetBitContext *gb = &s->HEVClc.gb;
558 uint8_t scaling_list_pred_mode_flag[4][6];
559 int32_t scaling_list_dc_coef[2][6];
560 int size_id, matrix_id, i, pos, delta;
562 for (size_id = 0; size_id < 4; size_id++)
563 for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
564 scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
565 if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
566 delta = get_ue_golomb_long(gb);
567 /* Only need to handle non-zero delta. Zero means default,
568 * which should already be in the arrays. */
570 // Copy from previous array.
571 if (matrix_id - delta < 0) {
572 av_log(s->avctx, AV_LOG_ERROR,
573 "Invalid delta in scaling list data: %d.\n", delta);
574 return AVERROR_INVALIDDATA;
577 memcpy(sl->sl[size_id][matrix_id],
578 sl->sl[size_id][matrix_id - delta],
579 size_id > 0 ? 64 : 16);
581 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
584 int next_coef, coef_num;
585 int32_t scaling_list_delta_coef;
588 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
590 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
591 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
592 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
594 for (i = 0; i < coef_num; i++) {
596 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
597 ff_hevc_diag_scan4x4_x[i];
599 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
600 ff_hevc_diag_scan8x8_x[i];
602 scaling_list_delta_coef = get_se_golomb(gb);
603 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
604 sl->sl[size_id][matrix_id][pos] = next_coef;
612 int ff_hevc_decode_nal_sps(HEVCContext *s)
614 const AVPixFmtDescriptor *desc;
615 GetBitContext *gb = &s->HEVClc.gb;
618 int log2_diff_max_min_transform_block_size;
619 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
623 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
626 return AVERROR(ENOMEM);
627 sps = (HEVCSPS*)sps_buf->data;
629 av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
633 sps->vps_id = get_bits(gb, 4);
634 if (sps->vps_id >= MAX_VPS_COUNT) {
635 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
636 ret = AVERROR_INVALIDDATA;
640 sps->max_sub_layers = get_bits(gb, 3) + 1;
641 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
642 av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
643 sps->max_sub_layers);
644 ret = AVERROR_INVALIDDATA;
648 skip_bits1(gb); // temporal_id_nesting_flag
649 if (decode_profile_tier_level(&s->HEVClc, &sps->ptl,
650 sps->max_sub_layers) < 0) {
651 av_log(s->avctx, AV_LOG_ERROR, "error decoding profile tier level\n");
652 ret = AVERROR_INVALIDDATA;
655 sps_id = get_ue_golomb_long(gb);
656 if (sps_id >= MAX_SPS_COUNT) {
657 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
658 ret = AVERROR_INVALIDDATA;
662 sps->chroma_format_idc = get_ue_golomb_long(gb);
663 if (sps->chroma_format_idc != 1) {
664 avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
665 ret = AVERROR_PATCHWELCOME;
669 if (sps->chroma_format_idc == 3)
670 sps->separate_colour_plane_flag = get_bits1(gb);
672 sps->width = get_ue_golomb_long(gb);
673 sps->height = get_ue_golomb_long(gb);
674 if ((ret = av_image_check_size(sps->width,
675 sps->height, 0, s->avctx)) < 0)
678 if (get_bits1(gb)) { // pic_conformance_flag
679 //TODO: * 2 is only valid for 420
680 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
681 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
682 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
683 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
685 if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
686 av_log(s->avctx, AV_LOG_DEBUG,
687 "discarding sps conformance window, "
688 "original values are l:%u r:%u t:%u b:%u\n",
689 sps->pic_conf_win.left_offset,
690 sps->pic_conf_win.right_offset,
691 sps->pic_conf_win.top_offset,
692 sps->pic_conf_win.bottom_offset);
694 sps->pic_conf_win.left_offset =
695 sps->pic_conf_win.right_offset =
696 sps->pic_conf_win.top_offset =
697 sps->pic_conf_win.bottom_offset = 0;
699 sps->output_window = sps->pic_conf_win;
702 sps->bit_depth = get_ue_golomb_long(gb) + 8;
703 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
704 if (bit_depth_chroma != sps->bit_depth) {
705 av_log(s->avctx, AV_LOG_ERROR,
706 "Luma bit depth (%d) is different from chroma bit depth (%d), "
707 "this is unsupported.\n",
708 sps->bit_depth, bit_depth_chroma);
709 ret = AVERROR_INVALIDDATA;
713 if (sps->chroma_format_idc == 1) {
714 switch (sps->bit_depth) {
715 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
716 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
717 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
719 av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
721 ret = AVERROR_PATCHWELCOME;
725 av_log(s->avctx, AV_LOG_ERROR,
726 "non-4:2:0 support is currently unspecified.\n");
727 return AVERROR_PATCHWELCOME;
730 desc = av_pix_fmt_desc_get(sps->pix_fmt);
732 ret = AVERROR(EINVAL);
736 sps->hshift[0] = sps->vshift[0] = 0;
737 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
738 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
740 sps->pixel_shift = sps->bit_depth > 8;
742 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
743 if (sps->log2_max_poc_lsb > 16) {
744 av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
745 sps->log2_max_poc_lsb - 4);
746 ret = AVERROR_INVALIDDATA;
750 sublayer_ordering_info = get_bits1(gb);
751 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
752 for (i = start; i < sps->max_sub_layers; i++) {
753 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
754 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
755 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
756 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
757 av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
758 sps->temporal_layer[i].max_dec_pic_buffering - 1);
759 ret = AVERROR_INVALIDDATA;
762 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
763 av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
764 sps->temporal_layer[i].num_reorder_pics);
765 ret = AVERROR_INVALIDDATA;
770 if (!sublayer_ordering_info) {
771 for (i = 0; i < start; i++) {
772 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
773 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
774 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
778 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
779 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
780 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
781 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
782 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
783 sps->log2_min_tb_size;
785 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
786 av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
787 ret = AVERROR_INVALIDDATA;
790 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
791 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
793 sps->scaling_list_enable_flag = get_bits1(gb);
794 if (sps->scaling_list_enable_flag) {
795 set_default_scaling_list_data(&sps->scaling_list);
798 ret = scaling_list_data(s, &sps->scaling_list);
804 sps->amp_enabled_flag = get_bits1(gb);
805 sps->sao_enabled = get_bits1(gb);
807 sps->pcm_enabled_flag = get_bits1(gb);
808 if (sps->pcm_enabled_flag) {
809 int pcm_bit_depth_chroma;
810 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
811 pcm_bit_depth_chroma = get_bits(gb, 4) + 1;
812 if (pcm_bit_depth_chroma != sps->pcm.bit_depth) {
813 av_log(s->avctx, AV_LOG_ERROR,
814 "PCM Luma bit depth (%d) is different from PCM chroma"
815 "bit depth (%d), this is unsupported.\n",
816 sps->pcm.bit_depth, pcm_bit_depth_chroma);
817 ret = AVERROR_INVALIDDATA;
821 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
822 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
823 get_ue_golomb_long(gb);
824 if (sps->pcm.bit_depth > sps->bit_depth) {
825 av_log(s->avctx, AV_LOG_ERROR,
826 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
827 sps->pcm.bit_depth, sps->bit_depth);
828 ret = AVERROR_INVALIDDATA;
832 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
835 sps->nb_st_rps = get_ue_golomb_long(gb);
836 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
837 av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
839 ret = AVERROR_INVALIDDATA;
842 for (i = 0; i < sps->nb_st_rps; i++) {
843 if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
848 sps->long_term_ref_pics_present_flag = get_bits1(gb);
849 if (sps->long_term_ref_pics_present_flag) {
850 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
851 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
852 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
853 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
857 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
858 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
859 sps->vui.sar = (AVRational){0, 1};
860 vui_present = get_bits1(gb);
863 skip_bits1(gb); // sps_extension_flag
865 if (s->apply_defdispwin) {
866 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
867 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
868 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
869 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
871 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
872 !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
873 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
874 av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
875 "chroma samples to preserve alignment.\n",
876 sps->output_window.left_offset);
878 sps->output_width = sps->width -
879 (sps->output_window.left_offset + sps->output_window.right_offset);
880 sps->output_height = sps->height -
881 (sps->output_window.top_offset + sps->output_window.bottom_offset);
882 if (sps->output_width <= 0 || sps->output_height <= 0) {
883 av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
884 sps->output_width, sps->output_height);
885 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
886 ret = AVERROR_INVALIDDATA;
889 av_log(s->avctx, AV_LOG_WARNING,
890 "Displaying the whole video surface.\n");
891 sps->pic_conf_win.left_offset =
892 sps->pic_conf_win.right_offset =
893 sps->pic_conf_win.top_offset =
894 sps->pic_conf_win.bottom_offset = 0;
895 sps->output_width = sps->width;
896 sps->output_height = sps->height;
899 // Inferred parameters
900 sps->log2_ctb_size = sps->log2_min_cb_size +
901 sps->log2_diff_max_min_coding_block_size;
902 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
904 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
905 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
906 sps->ctb_size = sps->ctb_width * sps->ctb_height;
908 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
909 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
910 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
911 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
912 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
913 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
915 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
917 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
918 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
919 av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
923 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
924 av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
927 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
928 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
929 sps->max_transform_hierarchy_depth_inter);
932 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
933 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
934 sps->max_transform_hierarchy_depth_intra);
937 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
938 av_log(s->avctx, AV_LOG_ERROR,
939 "max transform block size out of range: %d\n",
940 sps->log2_max_trafo_size);
944 if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
945 av_log(s->avctx, AV_LOG_DEBUG,
946 "Parsed SPS: id %d; coded wxh: %dx%d; "
947 "cropped wxh: %dx%d; pix_fmt: %s.\n",
948 sps_id, sps->width, sps->height,
949 sps->output_width, sps->output_height,
950 av_get_pix_fmt_name(sps->pix_fmt));
953 /* check if this is a repeat of an already parsed SPS, then keep the
955 * otherwise drop all PPSes that depend on it */
956 if (s->sps_list[sps_id] &&
957 !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
958 av_buffer_unref(&sps_buf);
960 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
961 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
962 av_buffer_unref(&s->pps_list[i]);
964 av_buffer_unref(&s->sps_list[sps_id]);
965 s->sps_list[sps_id] = sps_buf;
971 av_buffer_unref(&sps_buf);
975 static void hevc_pps_free(void *opaque, uint8_t *data)
977 HEVCPPS *pps = (HEVCPPS*)data;
979 av_freep(&pps->column_width);
980 av_freep(&pps->row_height);
981 av_freep(&pps->col_bd);
982 av_freep(&pps->row_bd);
983 av_freep(&pps->col_idxX);
984 av_freep(&pps->ctb_addr_rs_to_ts);
985 av_freep(&pps->ctb_addr_ts_to_rs);
986 av_freep(&pps->tile_pos_rs);
987 av_freep(&pps->tile_id);
988 av_freep(&pps->min_cb_addr_zs);
989 av_freep(&pps->min_tb_addr_zs);
994 int ff_hevc_decode_nal_pps(HEVCContext *s)
996 GetBitContext *gb = &s->HEVClc.gb;
998 int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
999 int log2_diff_ctb_min_tb_size;
1000 int i, j, x, y, ctb_addr_rs, tile_id;
1004 AVBufferRef *pps_buf;
1005 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1008 return AVERROR(ENOMEM);
1010 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1011 hevc_pps_free, NULL, 0);
1014 return AVERROR(ENOMEM);
1017 av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1020 pps->loop_filter_across_tiles_enabled_flag = 1;
1021 pps->num_tile_columns = 1;
1022 pps->num_tile_rows = 1;
1023 pps->uniform_spacing_flag = 1;
1024 pps->disable_dbf = 0;
1025 pps->beta_offset = 0;
1029 pps_id = get_ue_golomb_long(gb);
1030 if (pps_id >= MAX_PPS_COUNT) {
1031 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1032 ret = AVERROR_INVALIDDATA;
1035 pps->sps_id = get_ue_golomb_long(gb);
1036 if (pps->sps_id >= MAX_SPS_COUNT) {
1037 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1038 ret = AVERROR_INVALIDDATA;
1041 if (!s->sps_list[pps->sps_id]) {
1042 av_log(s->avctx, AV_LOG_ERROR, "SPS does not exist \n");
1043 ret = AVERROR_INVALIDDATA;
1046 sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
1048 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1049 pps->output_flag_present_flag = get_bits1(gb);
1050 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1052 pps->sign_data_hiding_flag = get_bits1(gb);
1054 pps->cabac_init_present_flag = get_bits1(gb);
1056 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1057 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1059 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1061 pps->constrained_intra_pred_flag = get_bits1(gb);
1062 pps->transform_skip_enabled_flag = get_bits1(gb);
1064 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1065 pps->diff_cu_qp_delta_depth = 0;
1066 if (pps->cu_qp_delta_enabled_flag)
1067 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1069 pps->cb_qp_offset = get_se_golomb(gb);
1070 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1071 av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1073 ret = AVERROR_INVALIDDATA;
1076 pps->cr_qp_offset = get_se_golomb(gb);
1077 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1078 av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1080 ret = AVERROR_INVALIDDATA;
1083 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1085 pps->weighted_pred_flag = get_bits1(gb);
1086 pps->weighted_bipred_flag = get_bits1(gb);
1088 pps->transquant_bypass_enable_flag = get_bits1(gb);
1089 pps->tiles_enabled_flag = get_bits1(gb);
1090 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1092 if (pps->tiles_enabled_flag) {
1093 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1094 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1095 if (pps->num_tile_columns == 0 ||
1096 pps->num_tile_columns >= sps->width) {
1097 av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1098 pps->num_tile_columns - 1);
1099 ret = AVERROR_INVALIDDATA;
1102 if (pps->num_tile_rows == 0 ||
1103 pps->num_tile_rows >= sps->height) {
1104 av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1105 pps->num_tile_rows - 1);
1106 ret = AVERROR_INVALIDDATA;
1110 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1111 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1112 if (!pps->column_width || !pps->row_height) {
1113 ret = AVERROR(ENOMEM);
1117 pps->uniform_spacing_flag = get_bits1(gb);
1118 if (!pps->uniform_spacing_flag) {
1120 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1121 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1122 sum += pps->column_width[i];
1124 if (sum >= sps->ctb_width) {
1125 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1126 ret = AVERROR_INVALIDDATA;
1129 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1132 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1133 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1134 sum += pps->row_height[i];
1136 if (sum >= sps->ctb_height) {
1137 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1138 ret = AVERROR_INVALIDDATA;
1141 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1143 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1146 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1148 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1149 if (pps->deblocking_filter_control_present_flag) {
1150 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1151 pps->disable_dbf = get_bits1(gb);
1152 if (!pps->disable_dbf) {
1153 pps->beta_offset = get_se_golomb(gb) * 2;
1154 pps->tc_offset = get_se_golomb(gb) * 2;
1155 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1156 av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1157 pps->beta_offset/2);
1158 ret = AVERROR_INVALIDDATA;
1161 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1162 av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1164 ret = AVERROR_INVALIDDATA;
1170 pps->scaling_list_data_present_flag = get_bits1(gb);
1171 if (pps->scaling_list_data_present_flag) {
1172 set_default_scaling_list_data(&pps->scaling_list);
1173 ret = scaling_list_data(s, &pps->scaling_list);
1177 pps->lists_modification_present_flag = get_bits1(gb);
1178 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1179 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1180 av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1181 pps->log2_parallel_merge_level - 2);
1182 ret = AVERROR_INVALIDDATA;
1186 pps->slice_header_extension_present_flag = get_bits1(gb);
1187 skip_bits1(gb); // pps_extension_flag
1189 // Inferred parameters
1190 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1191 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1192 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1193 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
1194 ret = AVERROR(ENOMEM);
1198 if (pps->uniform_spacing_flag) {
1199 if (!pps->column_width) {
1200 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1201 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1203 if (!pps->column_width || !pps->row_height) {
1204 ret = AVERROR(ENOMEM);
1208 for (i = 0; i < pps->num_tile_columns; i++) {
1209 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1210 (i * sps->ctb_width) / pps->num_tile_columns;
1213 for (i = 0; i < pps->num_tile_rows; i++) {
1214 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1215 (i * sps->ctb_height) / pps->num_tile_rows;
1220 for (i = 0; i < pps->num_tile_columns; i++)
1221 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1224 for (i = 0; i < pps->num_tile_rows; i++)
1225 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1227 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1228 if (i > pps->col_bd[j])
1230 pps->col_idxX[i] = j;
1236 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1237 pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
1238 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1240 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1241 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1242 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1243 pps->min_cb_addr_zs = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
1244 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1245 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1246 !pps->tile_id || !pps->min_cb_addr_zs || !pps->min_tb_addr_zs) {
1247 ret = AVERROR(ENOMEM);
1251 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1252 int tb_x = ctb_addr_rs % sps->ctb_width;
1253 int tb_y = ctb_addr_rs / sps->ctb_width;
1258 for (i = 0; i < pps->num_tile_columns; i++) {
1259 if (tb_x < pps->col_bd[i + 1]) {
1265 for (i = 0; i < pps->num_tile_rows; i++) {
1266 if (tb_y < pps->row_bd[i + 1]) {
1272 for (i = 0; i < tile_x; i++)
1273 val += pps->row_height[tile_y] * pps->column_width[i];
1274 for (i = 0; i < tile_y; i++)
1275 val += sps->ctb_width * pps->row_height[i];
1277 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1278 tb_x - pps->col_bd[tile_x];
1280 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1281 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1284 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1285 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1286 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1287 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1288 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1290 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1291 if (!pps->tile_pos_rs) {
1292 ret = AVERROR(ENOMEM);
1296 for (j = 0; j < pps->num_tile_rows; j++)
1297 for (i = 0; i < pps->num_tile_columns; i++)
1298 pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1300 for (y = 0; y < sps->min_cb_height; y++) {
1301 for (x = 0; x < sps->min_cb_width; x++) {
1302 int tb_x = x >> sps->log2_diff_max_min_coding_block_size;
1303 int tb_y = y >> sps->log2_diff_max_min_coding_block_size;
1304 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1305 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1306 (sps->log2_diff_max_min_coding_block_size * 2);
1307 for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
1309 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1311 pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
1315 log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
1316 for (y = 0; y < sps->min_tb_height; y++) {
1317 for (x = 0; x < sps->min_tb_width; x++) {
1318 int tb_x = x >> log2_diff_ctb_min_tb_size;
1319 int tb_y = y >> log2_diff_ctb_min_tb_size;
1320 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1321 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1322 (log2_diff_ctb_min_tb_size * 2);
1323 for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
1325 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1327 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1331 av_buffer_unref(&s->pps_list[pps_id]);
1332 s->pps_list[pps_id] = pps_buf;
1337 av_buffer_unref(&pps_buf);