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 FFmpeg.
11 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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"
30 static const uint8_t default_scaling_list_intra[] = {
31 16, 16, 16, 16, 17, 18, 21, 24,
32 16, 16, 16, 16, 17, 19, 22, 25,
33 16, 16, 17, 18, 20, 22, 25, 29,
34 16, 16, 18, 21, 24, 27, 31, 36,
35 17, 17, 20, 24, 30, 35, 41, 47,
36 18, 19, 22, 27, 35, 44, 54, 65,
37 21, 22, 25, 31, 41, 54, 70, 88,
38 24, 25, 29, 36, 47, 65, 88, 115
41 static const uint8_t default_scaling_list_inter[] = {
42 16, 16, 16, 16, 17, 18, 20, 24,
43 16, 16, 16, 17, 18, 20, 24, 25,
44 16, 16, 17, 18, 20, 24, 25, 28,
45 16, 17, 18, 20, 24, 25, 28, 33,
46 17, 18, 20, 24, 25, 28, 33, 41,
47 18, 20, 24, 25, 28, 33, 41, 54,
48 20, 24, 25, 28, 33, 41, 54, 71,
49 24, 25, 28, 33, 41, 54, 71, 91
52 static const AVRational vui_sar[] = {
72 int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
73 const HEVCSPS *sps, int is_slice_header)
75 HEVCLocalContext *lc = s->HEVClc;
76 uint8_t rps_predict = 0;
83 GetBitContext *gb = &lc->gb;
85 if (rps != sps->st_rps && sps->nb_st_rps)
86 rps_predict = get_bits1(gb);
89 const ShortTermRPS *rps_ridx;
90 int delta_rps, abs_delta_rps;
91 uint8_t use_delta_flag = 0;
92 uint8_t delta_rps_sign;
94 if (is_slice_header) {
95 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
96 if (delta_idx > sps->nb_st_rps) {
97 av_log(s->avctx, AV_LOG_ERROR,
98 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
99 delta_idx, sps->nb_st_rps);
100 return AVERROR_INVALIDDATA;
102 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
104 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
106 delta_rps_sign = get_bits1(gb);
107 abs_delta_rps = get_ue_golomb_long(gb) + 1;
108 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
109 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
110 int used = rps->used[k] = get_bits1(gb);
113 use_delta_flag = get_bits1(gb);
115 if (used || use_delta_flag) {
116 if (i < rps_ridx->num_delta_pocs)
117 delta_poc = delta_rps + rps_ridx->delta_poc[i];
119 delta_poc = delta_rps;
120 rps->delta_poc[k] = delta_poc;
129 rps->num_delta_pocs = k;
130 rps->num_negative_pics = k0;
131 // sort in increasing order (smallest first)
132 if (rps->num_delta_pocs != 0) {
134 for (i = 1; i < rps->num_delta_pocs; i++) {
135 delta_poc = rps->delta_poc[i];
137 for (k = i - 1; k >= 0; k--) {
138 tmp = rps->delta_poc[k];
139 if (delta_poc < tmp) {
140 rps->delta_poc[k + 1] = tmp;
141 rps->used[k + 1] = rps->used[k];
142 rps->delta_poc[k] = delta_poc;
148 if ((rps->num_negative_pics >> 1) != 0) {
150 k = rps->num_negative_pics - 1;
151 // flip the negative values to largest first
152 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
153 delta_poc = rps->delta_poc[i];
155 rps->delta_poc[i] = rps->delta_poc[k];
156 rps->used[i] = rps->used[k];
157 rps->delta_poc[k] = delta_poc;
163 unsigned int prev, nb_positive_pics;
164 rps->num_negative_pics = get_ue_golomb_long(gb);
165 nb_positive_pics = get_ue_golomb_long(gb);
167 if (rps->num_negative_pics >= MAX_REFS ||
168 nb_positive_pics >= MAX_REFS) {
169 av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
170 return AVERROR_INVALIDDATA;
173 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
174 if (rps->num_delta_pocs) {
176 for (i = 0; i < rps->num_negative_pics; i++) {
177 delta_poc = get_ue_golomb_long(gb) + 1;
179 rps->delta_poc[i] = prev;
180 rps->used[i] = get_bits1(gb);
183 for (i = 0; i < nb_positive_pics; i++) {
184 delta_poc = get_ue_golomb_long(gb) + 1;
186 rps->delta_poc[rps->num_negative_pics + i] = prev;
187 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
195 static void decode_profile_tier_level(HEVCContext *s, PTLCommon *ptl)
198 HEVCLocalContext *lc = s->HEVClc;
199 GetBitContext *gb = &lc->gb;
201 ptl->profile_space = get_bits(gb, 2);
202 ptl->tier_flag = get_bits1(gb);
203 ptl->profile_idc = get_bits(gb, 5);
204 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
205 av_log(s->avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
206 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
207 av_log(s->avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
208 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
209 av_log(s->avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
211 av_log(s->avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
213 for (i = 0; i < 32; i++)
214 ptl->profile_compatibility_flag[i] = get_bits1(gb);
215 ptl->progressive_source_flag = get_bits1(gb);
216 ptl->interlaced_source_flag = get_bits1(gb);
217 ptl->non_packed_constraint_flag = get_bits1(gb);
218 ptl->frame_only_constraint_flag = get_bits1(gb);
220 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
221 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
222 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
225 static void parse_ptl(HEVCContext *s, PTL *ptl, int max_num_sub_layers)
228 HEVCLocalContext *lc = s->HEVClc;
229 GetBitContext *gb = &lc->gb;
230 decode_profile_tier_level(s, &ptl->general_ptl);
231 ptl->general_ptl.level_idc = get_bits(gb, 8);
233 for (i = 0; i < max_num_sub_layers - 1; i++) {
234 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
235 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
237 if (max_num_sub_layers - 1> 0)
238 for (i = max_num_sub_layers - 1; i < 8; i++)
239 skip_bits(gb, 2); // reserved_zero_2bits[i]
240 for (i = 0; i < max_num_sub_layers - 1; i++) {
241 if (ptl->sub_layer_profile_present_flag[i])
242 decode_profile_tier_level(s, &ptl->sub_layer_ptl[i]);
243 if (ptl->sub_layer_level_present_flag[i])
244 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
248 static void decode_sublayer_hrd(HEVCContext *s, unsigned int nb_cpb,
249 int subpic_params_present)
251 GetBitContext *gb = &s->HEVClc->gb;
254 for (i = 0; i < nb_cpb; i++) {
255 get_ue_golomb_long(gb); // bit_rate_value_minus1
256 get_ue_golomb_long(gb); // cpb_size_value_minus1
258 if (subpic_params_present) {
259 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
260 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
262 skip_bits1(gb); // cbr_flag
266 static void decode_hrd(HEVCContext *s, int common_inf_present,
269 GetBitContext *gb = &s->HEVClc->gb;
270 int nal_params_present = 0, vcl_params_present = 0;
271 int subpic_params_present = 0;
274 if (common_inf_present) {
275 nal_params_present = get_bits1(gb);
276 vcl_params_present = get_bits1(gb);
278 if (nal_params_present || vcl_params_present) {
279 subpic_params_present = get_bits1(gb);
281 if (subpic_params_present) {
282 skip_bits(gb, 8); // tick_divisor_minus2
283 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
284 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
285 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
288 skip_bits(gb, 4); // bit_rate_scale
289 skip_bits(gb, 4); // cpb_size_scale
291 if (subpic_params_present)
292 skip_bits(gb, 4); // cpb_size_du_scale
294 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
295 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
296 skip_bits(gb, 5); // dpb_output_delay_length_minus1
300 for (i = 0; i < max_sublayers; i++) {
302 unsigned int nb_cpb = 1;
303 int fixed_rate = get_bits1(gb);
306 fixed_rate = get_bits1(gb);
309 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
311 low_delay = get_bits1(gb);
314 nb_cpb = get_ue_golomb_long(gb) + 1;
316 if (nal_params_present)
317 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
318 if (vcl_params_present)
319 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
323 int ff_hevc_decode_nal_vps(HEVCContext *s)
326 GetBitContext *gb = &s->HEVClc->gb;
329 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
332 return AVERROR(ENOMEM);
333 vps = (HEVCVPS*)vps_buf->data;
335 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
337 vps_id = get_bits(gb, 4);
338 if (vps_id >= MAX_VPS_COUNT) {
339 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
343 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
344 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
348 vps->vps_max_layers = get_bits(gb, 6) + 1;
349 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
350 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
352 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
353 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
357 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
358 av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
359 vps->vps_max_sub_layers);
363 parse_ptl(s, &vps->ptl, vps->vps_max_sub_layers);
365 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
367 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
368 for (; i < vps->vps_max_sub_layers; i++) {
369 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
370 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
371 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
373 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
374 av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
375 vps->vps_max_dec_pic_buffering[i] - 1);
378 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
379 av_log(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
380 vps->vps_num_reorder_pics[i]);
385 vps->vps_max_layer_id = get_bits(gb, 6);
386 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
387 for (i = 1; i < vps->vps_num_layer_sets; i++)
388 for (j = 0; j <= vps->vps_max_layer_id; j++)
389 skip_bits(gb, 1); // layer_id_included_flag[i][j]
391 vps->vps_timing_info_present_flag = get_bits1(gb);
392 if (vps->vps_timing_info_present_flag) {
393 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
394 vps->vps_time_scale = get_bits_long(gb, 32);
395 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
396 if (vps->vps_poc_proportional_to_timing_flag)
397 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
398 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
399 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
400 int common_inf_present = 1;
402 get_ue_golomb_long(gb); // hrd_layer_set_idx
404 common_inf_present = get_bits1(gb);
405 decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
408 get_bits1(gb); /* vps_extension_flag */
410 av_buffer_unref(&s->vps_list[vps_id]);
411 s->vps_list[vps_id] = vps_buf;
415 av_buffer_unref(&vps_buf);
416 return AVERROR_INVALIDDATA;
419 static void decode_vui(HEVCContext *s, HEVCSPS *sps)
421 VUI *vui = &sps->vui;
422 GetBitContext *gb = &s->HEVClc->gb;
425 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
427 sar_present = get_bits1(gb);
429 uint8_t sar_idx = get_bits(gb, 8);
430 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
431 vui->sar = vui_sar[sar_idx];
432 else if (sar_idx == 255) {
433 vui->sar.num = get_bits(gb, 16);
434 vui->sar.den = get_bits(gb, 16);
436 av_log(s->avctx, AV_LOG_WARNING,
437 "Unknown SAR index: %u.\n", sar_idx);
440 vui->overscan_info_present_flag = get_bits1(gb);
441 if (vui->overscan_info_present_flag)
442 vui->overscan_appropriate_flag = get_bits1(gb);
444 vui->video_signal_type_present_flag = get_bits1(gb);
445 if (vui->video_signal_type_present_flag) {
446 vui->video_format = get_bits(gb, 3);
447 vui->video_full_range_flag = get_bits1(gb);
448 vui->colour_description_present_flag = get_bits1(gb);
449 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
450 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
451 if (vui->colour_description_present_flag) {
452 vui->colour_primaries = get_bits(gb, 8);
453 vui->transfer_characteristic = get_bits(gb, 8);
454 vui->matrix_coeffs = get_bits(gb, 8);
456 // Set invalid values to "unspecified"
457 if (vui->colour_primaries >= AVCOL_PRI_NB)
458 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
459 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
460 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
461 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
462 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
466 vui->chroma_loc_info_present_flag = get_bits1(gb);
467 if (vui->chroma_loc_info_present_flag) {
468 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
469 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
472 vui->neutra_chroma_indication_flag = get_bits1(gb);
473 vui->field_seq_flag = get_bits1(gb);
474 vui->frame_field_info_present_flag = get_bits1(gb);
476 vui->default_display_window_flag = get_bits1(gb);
477 if (vui->default_display_window_flag) {
478 //TODO: * 2 is only valid for 420
479 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
480 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
481 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
482 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
484 if (s->apply_defdispwin &&
485 s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
486 av_log(s->avctx, AV_LOG_DEBUG,
487 "discarding vui default display window, "
488 "original values are l:%u r:%u t:%u b:%u\n",
489 vui->def_disp_win.left_offset,
490 vui->def_disp_win.right_offset,
491 vui->def_disp_win.top_offset,
492 vui->def_disp_win.bottom_offset);
494 vui->def_disp_win.left_offset =
495 vui->def_disp_win.right_offset =
496 vui->def_disp_win.top_offset =
497 vui->def_disp_win.bottom_offset = 0;
501 vui->vui_timing_info_present_flag = get_bits1(gb);
503 if (vui->vui_timing_info_present_flag) {
504 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
505 vui->vui_time_scale = get_bits_long(gb, 32);
506 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
507 if (vui->vui_poc_proportional_to_timing_flag)
508 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
509 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
510 if (vui->vui_hrd_parameters_present_flag)
511 decode_hrd(s, 1, sps->max_sub_layers);
514 vui->bitstream_restriction_flag = get_bits1(gb);
515 if (vui->bitstream_restriction_flag) {
516 vui->tiles_fixed_structure_flag = get_bits1(gb);
517 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
518 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
519 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
520 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
521 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
522 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
523 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
527 static void set_default_scaling_list_data(ScalingList *sl)
531 for (matrixId = 0; matrixId < 6; matrixId++) {
533 memset(sl->sl[0][matrixId], 16, 16);
534 sl->sl_dc[0][matrixId] = 16; // default for 16x16
535 sl->sl_dc[1][matrixId] = 16; // default for 32x32
537 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
538 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
539 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
540 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
541 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
542 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
543 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
544 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
545 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
546 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
547 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
548 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
549 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
550 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
553 static int scaling_list_data(HEVCContext *s, ScalingList *sl)
555 GetBitContext *gb = &s->HEVClc->gb;
556 uint8_t scaling_list_pred_mode_flag[4][6];
557 int32_t scaling_list_dc_coef[2][6];
558 int size_id, matrix_id, i, pos;
560 for (size_id = 0; size_id < 4; size_id++)
561 for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
562 scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
563 if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
564 unsigned int delta = get_ue_golomb_long(gb);
565 /* Only need to handle non-zero delta. Zero means default,
566 * which should already be in the arrays. */
568 // Copy from previous array.
569 if (matrix_id < delta) {
570 av_log(s->avctx, AV_LOG_ERROR,
571 "Invalid delta in scaling list data: %d.\n", delta);
572 return AVERROR_INVALIDDATA;
575 memcpy(sl->sl[size_id][matrix_id],
576 sl->sl[size_id][matrix_id - delta],
577 size_id > 0 ? 64 : 16);
579 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
582 int next_coef, coef_num;
583 int32_t scaling_list_delta_coef;
586 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
588 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
589 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
590 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
592 for (i = 0; i < coef_num; i++) {
594 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
595 ff_hevc_diag_scan4x4_x[i];
597 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
598 ff_hevc_diag_scan8x8_x[i];
600 scaling_list_delta_coef = get_se_golomb(gb);
601 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
602 sl->sl[size_id][matrix_id][pos] = next_coef;
610 int ff_hevc_decode_nal_sps(HEVCContext *s)
612 const AVPixFmtDescriptor *desc;
613 GetBitContext *gb = &s->HEVClc->gb;
615 unsigned int sps_id = 0;
616 int log2_diff_max_min_transform_block_size;
617 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
621 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
624 return AVERROR(ENOMEM);
625 sps = (HEVCSPS*)sps_buf->data;
627 av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
631 sps->vps_id = get_bits(gb, 4);
632 if (sps->vps_id >= MAX_VPS_COUNT) {
633 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
634 ret = AVERROR_INVALIDDATA;
638 if (!s->vps_list[sps->vps_id]) {
639 av_log(s->avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
641 ret = AVERROR_INVALIDDATA;
645 sps->max_sub_layers = get_bits(gb, 3) + 1;
646 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
647 av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
648 sps->max_sub_layers);
649 ret = AVERROR_INVALIDDATA;
653 skip_bits1(gb); // temporal_id_nesting_flag
655 parse_ptl(s, &sps->ptl, sps->max_sub_layers);
657 sps_id = get_ue_golomb_long(gb);
658 if (sps_id >= MAX_SPS_COUNT) {
659 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
660 ret = AVERROR_INVALIDDATA;
664 sps->chroma_format_idc = get_ue_golomb_long(gb);
665 if (sps->chroma_format_idc != 1) {
666 avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
667 ret = AVERROR_PATCHWELCOME;
671 if (sps->chroma_format_idc == 3)
672 sps->separate_colour_plane_flag = get_bits1(gb);
674 sps->width = get_ue_golomb_long(gb);
675 sps->height = get_ue_golomb_long(gb);
676 if ((ret = av_image_check_size(sps->width,
677 sps->height, 0, s->avctx)) < 0)
680 if (get_bits1(gb)) { // pic_conformance_flag
681 //TODO: * 2 is only valid for 420
682 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
683 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
684 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
685 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
687 if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
688 av_log(s->avctx, AV_LOG_DEBUG,
689 "discarding sps conformance window, "
690 "original values are l:%u r:%u t:%u b:%u\n",
691 sps->pic_conf_win.left_offset,
692 sps->pic_conf_win.right_offset,
693 sps->pic_conf_win.top_offset,
694 sps->pic_conf_win.bottom_offset);
696 sps->pic_conf_win.left_offset =
697 sps->pic_conf_win.right_offset =
698 sps->pic_conf_win.top_offset =
699 sps->pic_conf_win.bottom_offset = 0;
701 sps->output_window = sps->pic_conf_win;
704 sps->bit_depth = get_ue_golomb_long(gb) + 8;
705 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
706 if (bit_depth_chroma != sps->bit_depth) {
707 av_log(s->avctx, AV_LOG_ERROR,
708 "Luma bit depth (%d) is different from chroma bit depth (%d), "
709 "this is unsupported.\n",
710 sps->bit_depth, bit_depth_chroma);
711 ret = AVERROR_INVALIDDATA;
715 if (sps->chroma_format_idc == 1) {
716 switch (sps->bit_depth) {
717 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
718 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
719 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
721 av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
723 ret = AVERROR_PATCHWELCOME;
727 av_log(s->avctx, AV_LOG_ERROR,
728 "non-4:2:0 support is currently unspecified.\n");
729 return AVERROR_PATCHWELCOME;
732 desc = av_pix_fmt_desc_get(sps->pix_fmt);
734 ret = AVERROR(EINVAL);
738 sps->hshift[0] = sps->vshift[0] = 0;
739 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
740 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
742 sps->pixel_shift = sps->bit_depth > 8;
744 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
745 if (sps->log2_max_poc_lsb > 16) {
746 av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
747 sps->log2_max_poc_lsb - 4);
748 ret = AVERROR_INVALIDDATA;
752 sublayer_ordering_info = get_bits1(gb);
753 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
754 for (i = start; i < sps->max_sub_layers; i++) {
755 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
756 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
757 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
758 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
759 av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
760 sps->temporal_layer[i].max_dec_pic_buffering - 1);
761 ret = AVERROR_INVALIDDATA;
764 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
765 av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
766 sps->temporal_layer[i].num_reorder_pics);
767 if (sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
768 ret = AVERROR_INVALIDDATA;
771 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
775 if (!sublayer_ordering_info) {
776 for (i = 0; i < start; i++) {
777 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
778 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
779 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
783 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
784 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
785 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
786 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
787 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
788 sps->log2_min_tb_size;
790 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
791 av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
792 ret = AVERROR_INVALIDDATA;
795 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
796 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
798 sps->scaling_list_enable_flag = get_bits1(gb);
799 if (sps->scaling_list_enable_flag) {
800 set_default_scaling_list_data(&sps->scaling_list);
803 ret = scaling_list_data(s, &sps->scaling_list);
809 sps->amp_enabled_flag = get_bits1(gb);
810 sps->sao_enabled = get_bits1(gb);
812 sps->pcm_enabled_flag = get_bits1(gb);
813 if (sps->pcm_enabled_flag) {
814 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
815 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
816 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
817 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
818 get_ue_golomb_long(gb);
819 if (sps->pcm.bit_depth > sps->bit_depth) {
820 av_log(s->avctx, AV_LOG_ERROR,
821 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
822 sps->pcm.bit_depth, sps->bit_depth);
823 ret = AVERROR_INVALIDDATA;
827 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
830 sps->nb_st_rps = get_ue_golomb_long(gb);
831 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
832 av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
834 ret = AVERROR_INVALIDDATA;
837 for (i = 0; i < sps->nb_st_rps; i++) {
838 if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
843 sps->long_term_ref_pics_present_flag = get_bits1(gb);
844 if (sps->long_term_ref_pics_present_flag) {
845 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
846 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
847 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
848 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
852 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
853 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
854 sps->vui.sar = (AVRational){0, 1};
855 vui_present = get_bits1(gb);
858 skip_bits1(gb); // sps_extension_flag
860 if (s->apply_defdispwin) {
861 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
862 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
863 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
864 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
866 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
867 !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
868 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
869 av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
870 "chroma samples to preserve alignment.\n",
871 sps->output_window.left_offset);
873 sps->output_width = sps->width -
874 (sps->output_window.left_offset + sps->output_window.right_offset);
875 sps->output_height = sps->height -
876 (sps->output_window.top_offset + sps->output_window.bottom_offset);
877 if (sps->output_width <= 0 || sps->output_height <= 0) {
878 av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
879 sps->output_width, sps->output_height);
880 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
881 ret = AVERROR_INVALIDDATA;
884 av_log(s->avctx, AV_LOG_WARNING,
885 "Displaying the whole video surface.\n");
886 sps->pic_conf_win.left_offset =
887 sps->pic_conf_win.right_offset =
888 sps->pic_conf_win.top_offset =
889 sps->pic_conf_win.bottom_offset = 0;
890 sps->output_width = sps->width;
891 sps->output_height = sps->height;
894 // Inferred parameters
895 sps->log2_ctb_size = sps->log2_min_cb_size +
896 sps->log2_diff_max_min_coding_block_size;
897 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
899 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
900 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
901 sps->ctb_size = sps->ctb_width * sps->ctb_height;
903 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
904 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
905 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
906 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
907 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
908 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
910 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
912 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
913 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
914 av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
918 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
919 av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
922 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
923 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
924 sps->max_transform_hierarchy_depth_inter);
927 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
928 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
929 sps->max_transform_hierarchy_depth_intra);
932 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
933 av_log(s->avctx, AV_LOG_ERROR,
934 "max transform block size out of range: %d\n",
935 sps->log2_max_trafo_size);
939 if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
940 av_log(s->avctx, AV_LOG_DEBUG,
941 "Parsed SPS: id %d; coded wxh: %dx%d; "
942 "cropped wxh: %dx%d; pix_fmt: %s.\n",
943 sps_id, sps->width, sps->height,
944 sps->output_width, sps->output_height,
945 av_get_pix_fmt_name(sps->pix_fmt));
948 /* check if this is a repeat of an already parsed SPS, then keep the
950 * otherwise drop all PPSes that depend on it */
951 if (s->sps_list[sps_id] &&
952 !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
953 av_buffer_unref(&sps_buf);
955 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
956 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
957 av_buffer_unref(&s->pps_list[i]);
959 av_buffer_unref(&s->sps_list[sps_id]);
960 s->sps_list[sps_id] = sps_buf;
966 av_buffer_unref(&sps_buf);
970 static void hevc_pps_free(void *opaque, uint8_t *data)
972 HEVCPPS *pps = (HEVCPPS*)data;
974 av_freep(&pps->column_width);
975 av_freep(&pps->row_height);
976 av_freep(&pps->col_bd);
977 av_freep(&pps->row_bd);
978 av_freep(&pps->col_idxX);
979 av_freep(&pps->ctb_addr_rs_to_ts);
980 av_freep(&pps->ctb_addr_ts_to_rs);
981 av_freep(&pps->tile_pos_rs);
982 av_freep(&pps->tile_id);
983 av_freep(&pps->min_cb_addr_zs);
984 av_freep(&pps->min_tb_addr_zs);
989 int ff_hevc_decode_nal_pps(HEVCContext *s)
991 GetBitContext *gb = &s->HEVClc->gb;
993 int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
994 int log2_diff_ctb_min_tb_size;
995 int i, j, x, y, ctb_addr_rs, tile_id;
997 unsigned int pps_id = 0;
999 AVBufferRef *pps_buf;
1000 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1003 return AVERROR(ENOMEM);
1005 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1006 hevc_pps_free, NULL, 0);
1009 return AVERROR(ENOMEM);
1012 av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1015 pps->loop_filter_across_tiles_enabled_flag = 1;
1016 pps->num_tile_columns = 1;
1017 pps->num_tile_rows = 1;
1018 pps->uniform_spacing_flag = 1;
1019 pps->disable_dbf = 0;
1020 pps->beta_offset = 0;
1024 pps_id = get_ue_golomb_long(gb);
1025 if (pps_id >= MAX_PPS_COUNT) {
1026 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1027 ret = AVERROR_INVALIDDATA;
1030 pps->sps_id = get_ue_golomb_long(gb);
1031 if (pps->sps_id >= MAX_SPS_COUNT) {
1032 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1033 ret = AVERROR_INVALIDDATA;
1036 if (!s->sps_list[pps->sps_id]) {
1037 av_log(s->avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1038 ret = AVERROR_INVALIDDATA;
1041 sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
1043 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1044 pps->output_flag_present_flag = get_bits1(gb);
1045 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1047 pps->sign_data_hiding_flag = get_bits1(gb);
1049 pps->cabac_init_present_flag = get_bits1(gb);
1051 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1052 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1054 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1056 pps->constrained_intra_pred_flag = get_bits1(gb);
1057 pps->transform_skip_enabled_flag = get_bits1(gb);
1059 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1060 pps->diff_cu_qp_delta_depth = 0;
1061 if (pps->cu_qp_delta_enabled_flag)
1062 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1064 pps->cb_qp_offset = get_se_golomb(gb);
1065 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1066 av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1068 ret = AVERROR_INVALIDDATA;
1071 pps->cr_qp_offset = get_se_golomb(gb);
1072 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1073 av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1075 ret = AVERROR_INVALIDDATA;
1078 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1080 pps->weighted_pred_flag = get_bits1(gb);
1081 pps->weighted_bipred_flag = get_bits1(gb);
1083 pps->transquant_bypass_enable_flag = get_bits1(gb);
1084 pps->tiles_enabled_flag = get_bits1(gb);
1085 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1087 if (pps->tiles_enabled_flag) {
1088 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1089 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1090 if (pps->num_tile_columns == 0 ||
1091 pps->num_tile_columns >= sps->width) {
1092 av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1093 pps->num_tile_columns - 1);
1094 ret = AVERROR_INVALIDDATA;
1097 if (pps->num_tile_rows == 0 ||
1098 pps->num_tile_rows >= sps->height) {
1099 av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1100 pps->num_tile_rows - 1);
1101 ret = AVERROR_INVALIDDATA;
1105 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1106 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1107 if (!pps->column_width || !pps->row_height) {
1108 ret = AVERROR(ENOMEM);
1112 pps->uniform_spacing_flag = get_bits1(gb);
1113 if (!pps->uniform_spacing_flag) {
1115 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1116 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1117 sum += pps->column_width[i];
1119 if (sum >= sps->ctb_width) {
1120 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1121 ret = AVERROR_INVALIDDATA;
1124 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1127 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1128 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1129 sum += pps->row_height[i];
1131 if (sum >= sps->ctb_height) {
1132 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1133 ret = AVERROR_INVALIDDATA;
1136 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1138 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1141 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1143 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1144 if (pps->deblocking_filter_control_present_flag) {
1145 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1146 pps->disable_dbf = get_bits1(gb);
1147 if (!pps->disable_dbf) {
1148 pps->beta_offset = get_se_golomb(gb) * 2;
1149 pps->tc_offset = get_se_golomb(gb) * 2;
1150 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1151 av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1152 pps->beta_offset/2);
1153 ret = AVERROR_INVALIDDATA;
1156 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1157 av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1159 ret = AVERROR_INVALIDDATA;
1165 pps->scaling_list_data_present_flag = get_bits1(gb);
1166 if (pps->scaling_list_data_present_flag) {
1167 set_default_scaling_list_data(&pps->scaling_list);
1168 ret = scaling_list_data(s, &pps->scaling_list);
1172 pps->lists_modification_present_flag = get_bits1(gb);
1173 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1174 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1175 av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1176 pps->log2_parallel_merge_level - 2);
1177 ret = AVERROR_INVALIDDATA;
1181 pps->slice_header_extension_present_flag = get_bits1(gb);
1182 skip_bits1(gb); // pps_extension_flag
1184 // Inferred parameters
1185 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1186 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1187 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1188 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
1189 ret = AVERROR(ENOMEM);
1193 if (pps->uniform_spacing_flag) {
1194 if (!pps->column_width) {
1195 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1196 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1198 if (!pps->column_width || !pps->row_height) {
1199 ret = AVERROR(ENOMEM);
1203 for (i = 0; i < pps->num_tile_columns; i++) {
1204 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1205 (i * sps->ctb_width) / pps->num_tile_columns;
1208 for (i = 0; i < pps->num_tile_rows; i++) {
1209 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1210 (i * sps->ctb_height) / pps->num_tile_rows;
1215 for (i = 0; i < pps->num_tile_columns; i++)
1216 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1219 for (i = 0; i < pps->num_tile_rows; i++)
1220 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1222 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1223 if (i > pps->col_bd[j])
1225 pps->col_idxX[i] = j;
1231 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1232 pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
1233 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1235 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1236 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1237 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1238 pps->min_cb_addr_zs = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
1239 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1240 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1241 !pps->tile_id || !pps->min_cb_addr_zs || !pps->min_tb_addr_zs) {
1242 ret = AVERROR(ENOMEM);
1246 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1247 int tb_x = ctb_addr_rs % sps->ctb_width;
1248 int tb_y = ctb_addr_rs / sps->ctb_width;
1253 for (i = 0; i < pps->num_tile_columns; i++) {
1254 if (tb_x < pps->col_bd[i + 1]) {
1260 for (i = 0; i < pps->num_tile_rows; i++) {
1261 if (tb_y < pps->row_bd[i + 1]) {
1267 for (i = 0; i < tile_x; i++)
1268 val += pps->row_height[tile_y] * pps->column_width[i];
1269 for (i = 0; i < tile_y; i++)
1270 val += sps->ctb_width * pps->row_height[i];
1272 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1273 tb_x - pps->col_bd[tile_x];
1275 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1276 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1279 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1280 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1281 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1282 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1283 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1285 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1286 if (!pps->tile_pos_rs) {
1287 ret = AVERROR(ENOMEM);
1291 for (j = 0; j < pps->num_tile_rows; j++)
1292 for (i = 0; i < pps->num_tile_columns; i++)
1293 pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1295 for (y = 0; y < sps->min_cb_height; y++) {
1296 for (x = 0; x < sps->min_cb_width; x++) {
1297 int tb_x = x >> sps->log2_diff_max_min_coding_block_size;
1298 int tb_y = y >> sps->log2_diff_max_min_coding_block_size;
1299 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1300 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1301 (sps->log2_diff_max_min_coding_block_size * 2);
1302 for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
1304 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1306 pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
1310 log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
1311 for (y = 0; y < sps->min_tb_height; y++) {
1312 for (x = 0; x < sps->min_tb_width; x++) {
1313 int tb_x = x >> log2_diff_ctb_min_tb_size;
1314 int tb_y = y >> log2_diff_ctb_min_tb_size;
1315 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1316 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1317 (log2_diff_ctb_min_tb_size * 2);
1318 for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
1320 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1322 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1326 av_buffer_unref(&s->pps_list[pps_id]);
1327 s->pps_list[pps_id] = pps_buf;
1332 av_buffer_unref(&pps_buf);