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 static void remove_pps(HEVCParamSets *s, int id)
75 if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
77 av_buffer_unref(&s->pps_list[id]);
80 static void remove_sps(HEVCParamSets *s, int id)
83 if (s->sps_list[id]) {
84 if (s->sps == (const HEVCSPS*)s->sps_list[id]->data)
87 /* drop all PPS that depend on this SPS */
88 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
89 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id)
92 av_buffer_unref(&s->sps_list[id]);
95 static void remove_vps(HEVCParamSets *s, int id)
98 if (s->vps_list[id]) {
99 if (s->vps == (const HEVCVPS*)s->vps_list[id]->data)
102 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
103 if (s->sps_list[i] && ((HEVCSPS*)s->sps_list[i]->data)->vps_id == id)
106 av_buffer_unref(&s->vps_list[id]);
109 int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
110 ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
112 uint8_t rps_predict = 0;
119 if (rps != sps->st_rps && sps->nb_st_rps)
120 rps_predict = get_bits1(gb);
123 const ShortTermRPS *rps_ridx;
124 int delta_rps, abs_delta_rps;
125 uint8_t use_delta_flag = 0;
126 uint8_t delta_rps_sign;
128 if (is_slice_header) {
129 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
130 if (delta_idx > sps->nb_st_rps) {
131 av_log(avctx, AV_LOG_ERROR,
132 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
133 delta_idx, sps->nb_st_rps);
134 return AVERROR_INVALIDDATA;
136 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
137 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
139 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
141 delta_rps_sign = get_bits1(gb);
142 abs_delta_rps = get_ue_golomb_long(gb) + 1;
143 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
144 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
145 int used = rps->used[k] = get_bits1(gb);
148 use_delta_flag = get_bits1(gb);
150 if (used || use_delta_flag) {
151 if (i < rps_ridx->num_delta_pocs)
152 delta_poc = delta_rps + rps_ridx->delta_poc[i];
154 delta_poc = delta_rps;
155 rps->delta_poc[k] = delta_poc;
164 rps->num_delta_pocs = k;
165 rps->num_negative_pics = k0;
166 // sort in increasing order (smallest first)
167 if (rps->num_delta_pocs != 0) {
169 for (i = 1; i < rps->num_delta_pocs; i++) {
170 delta_poc = rps->delta_poc[i];
172 for (k = i - 1; k >= 0; k--) {
173 tmp = rps->delta_poc[k];
174 if (delta_poc < tmp) {
175 rps->delta_poc[k + 1] = tmp;
176 rps->used[k + 1] = rps->used[k];
177 rps->delta_poc[k] = delta_poc;
183 if ((rps->num_negative_pics >> 1) != 0) {
185 k = rps->num_negative_pics - 1;
186 // flip the negative values to largest first
187 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
188 delta_poc = rps->delta_poc[i];
190 rps->delta_poc[i] = rps->delta_poc[k];
191 rps->used[i] = rps->used[k];
192 rps->delta_poc[k] = delta_poc;
198 unsigned int prev, nb_positive_pics;
199 rps->num_negative_pics = get_ue_golomb_long(gb);
200 nb_positive_pics = get_ue_golomb_long(gb);
202 if (rps->num_negative_pics >= MAX_REFS ||
203 nb_positive_pics >= MAX_REFS) {
204 av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
205 return AVERROR_INVALIDDATA;
208 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
209 if (rps->num_delta_pocs) {
211 for (i = 0; i < rps->num_negative_pics; i++) {
212 delta_poc = get_ue_golomb_long(gb) + 1;
214 rps->delta_poc[i] = prev;
215 rps->used[i] = get_bits1(gb);
218 for (i = 0; i < nb_positive_pics; i++) {
219 delta_poc = get_ue_golomb_long(gb) + 1;
221 rps->delta_poc[rps->num_negative_pics + i] = prev;
222 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
230 static void decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
235 ptl->profile_space = get_bits(gb, 2);
236 ptl->tier_flag = get_bits1(gb);
237 ptl->profile_idc = get_bits(gb, 5);
238 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
239 av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
240 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
241 av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
242 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
243 av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
245 av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
247 for (i = 0; i < 32; i++)
248 ptl->profile_compatibility_flag[i] = get_bits1(gb);
249 ptl->progressive_source_flag = get_bits1(gb);
250 ptl->interlaced_source_flag = get_bits1(gb);
251 ptl->non_packed_constraint_flag = get_bits1(gb);
252 ptl->frame_only_constraint_flag = get_bits1(gb);
254 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
255 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
256 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
259 static void parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
260 PTL *ptl, int max_num_sub_layers)
263 decode_profile_tier_level(gb, avctx, &ptl->general_ptl);
264 ptl->general_ptl.level_idc = get_bits(gb, 8);
266 for (i = 0; i < max_num_sub_layers - 1; i++) {
267 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
268 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
270 if (max_num_sub_layers - 1 > 0)
271 for (i = max_num_sub_layers - 1; i < 8; i++)
272 skip_bits(gb, 2); // reserved_zero_2bits[i]
273 for (i = 0; i < max_num_sub_layers - 1; i++) {
274 if (ptl->sub_layer_profile_present_flag[i])
275 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]);
276 if (ptl->sub_layer_level_present_flag[i])
277 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
281 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
282 int subpic_params_present)
286 for (i = 0; i < nb_cpb; i++) {
287 get_ue_golomb_long(gb); // bit_rate_value_minus1
288 get_ue_golomb_long(gb); // cpb_size_value_minus1
290 if (subpic_params_present) {
291 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
292 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
294 skip_bits1(gb); // cbr_flag
298 static void decode_hrd(GetBitContext *gb, int common_inf_present,
301 int nal_params_present = 0, vcl_params_present = 0;
302 int subpic_params_present = 0;
305 if (common_inf_present) {
306 nal_params_present = get_bits1(gb);
307 vcl_params_present = get_bits1(gb);
309 if (nal_params_present || vcl_params_present) {
310 subpic_params_present = get_bits1(gb);
312 if (subpic_params_present) {
313 skip_bits(gb, 8); // tick_divisor_minus2
314 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
315 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
316 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
319 skip_bits(gb, 4); // bit_rate_scale
320 skip_bits(gb, 4); // cpb_size_scale
322 if (subpic_params_present)
323 skip_bits(gb, 4); // cpb_size_du_scale
325 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
326 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
327 skip_bits(gb, 5); // dpb_output_delay_length_minus1
331 for (i = 0; i < max_sublayers; i++) {
333 unsigned int nb_cpb = 1;
334 int fixed_rate = get_bits1(gb);
337 fixed_rate = get_bits1(gb);
340 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
342 low_delay = get_bits1(gb);
345 nb_cpb = get_ue_golomb_long(gb) + 1;
347 if (nal_params_present)
348 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
349 if (vcl_params_present)
350 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
354 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
360 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
363 return AVERROR(ENOMEM);
364 vps = (HEVCVPS*)vps_buf->data;
366 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
368 vps_id = get_bits(gb, 4);
369 if (vps_id >= MAX_VPS_COUNT) {
370 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
374 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
375 av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
379 vps->vps_max_layers = get_bits(gb, 6) + 1;
380 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
381 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
383 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
384 av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
388 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
389 av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
390 vps->vps_max_sub_layers);
394 parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers);
396 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
398 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
399 for (; i < vps->vps_max_sub_layers; i++) {
400 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
401 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
402 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
404 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
405 av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
406 vps->vps_max_dec_pic_buffering[i] - 1);
409 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
410 av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
411 vps->vps_num_reorder_pics[i]);
412 if (avctx->err_recognition & AV_EF_EXPLODE)
417 vps->vps_max_layer_id = get_bits(gb, 6);
418 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
419 for (i = 1; i < vps->vps_num_layer_sets; i++)
420 for (j = 0; j <= vps->vps_max_layer_id; j++)
421 skip_bits(gb, 1); // layer_id_included_flag[i][j]
423 vps->vps_timing_info_present_flag = get_bits1(gb);
424 if (vps->vps_timing_info_present_flag) {
425 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
426 vps->vps_time_scale = get_bits_long(gb, 32);
427 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
428 if (vps->vps_poc_proportional_to_timing_flag)
429 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
430 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
431 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
432 int common_inf_present = 1;
434 get_ue_golomb_long(gb); // hrd_layer_set_idx
436 common_inf_present = get_bits1(gb);
437 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
440 get_bits1(gb); /* vps_extension_flag */
442 if (ps->vps_list[vps_id] &&
443 !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
444 av_buffer_unref(&vps_buf);
446 remove_vps(ps, vps_id);
447 ps->vps_list[vps_id] = vps_buf;
453 av_buffer_unref(&vps_buf);
454 return AVERROR_INVALIDDATA;
457 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
458 int apply_defdispwin, HEVCSPS *sps)
460 VUI *vui = &sps->vui;
463 av_log(avctx, AV_LOG_DEBUG, "Decoding VUI\n");
465 sar_present = get_bits1(gb);
467 uint8_t sar_idx = get_bits(gb, 8);
468 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
469 vui->sar = vui_sar[sar_idx];
470 else if (sar_idx == 255) {
471 vui->sar.num = get_bits(gb, 16);
472 vui->sar.den = get_bits(gb, 16);
474 av_log(avctx, AV_LOG_WARNING,
475 "Unknown SAR index: %u.\n", sar_idx);
478 vui->overscan_info_present_flag = get_bits1(gb);
479 if (vui->overscan_info_present_flag)
480 vui->overscan_appropriate_flag = get_bits1(gb);
482 vui->video_signal_type_present_flag = get_bits1(gb);
483 if (vui->video_signal_type_present_flag) {
484 vui->video_format = get_bits(gb, 3);
485 vui->video_full_range_flag = get_bits1(gb);
486 vui->colour_description_present_flag = get_bits1(gb);
487 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
488 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
489 if (vui->colour_description_present_flag) {
490 vui->colour_primaries = get_bits(gb, 8);
491 vui->transfer_characteristic = get_bits(gb, 8);
492 vui->matrix_coeffs = get_bits(gb, 8);
494 // Set invalid values to "unspecified"
495 if (vui->colour_primaries >= AVCOL_PRI_NB)
496 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
497 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
498 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
499 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
500 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
504 vui->chroma_loc_info_present_flag = get_bits1(gb);
505 if (vui->chroma_loc_info_present_flag) {
506 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
507 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
510 vui->neutra_chroma_indication_flag = get_bits1(gb);
511 vui->field_seq_flag = get_bits1(gb);
512 vui->frame_field_info_present_flag = get_bits1(gb);
514 vui->default_display_window_flag = get_bits1(gb);
515 if (vui->default_display_window_flag) {
516 //TODO: * 2 is only valid for 420
517 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
518 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
519 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
520 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
522 if (apply_defdispwin &&
523 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
524 av_log(avctx, AV_LOG_DEBUG,
525 "discarding vui default display window, "
526 "original values are l:%u r:%u t:%u b:%u\n",
527 vui->def_disp_win.left_offset,
528 vui->def_disp_win.right_offset,
529 vui->def_disp_win.top_offset,
530 vui->def_disp_win.bottom_offset);
532 vui->def_disp_win.left_offset =
533 vui->def_disp_win.right_offset =
534 vui->def_disp_win.top_offset =
535 vui->def_disp_win.bottom_offset = 0;
539 vui->vui_timing_info_present_flag = get_bits1(gb);
540 if (vui->vui_timing_info_present_flag) {
541 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
542 vui->vui_time_scale = get_bits_long(gb, 32);
543 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
544 if (vui->vui_poc_proportional_to_timing_flag)
545 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
546 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
547 if (vui->vui_hrd_parameters_present_flag)
548 decode_hrd(gb, 1, sps->max_sub_layers);
551 vui->bitstream_restriction_flag = get_bits1(gb);
552 if (vui->bitstream_restriction_flag) {
553 vui->tiles_fixed_structure_flag = get_bits1(gb);
554 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
555 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
556 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
557 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
558 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
559 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
560 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
564 static void set_default_scaling_list_data(ScalingList *sl)
568 for (matrixId = 0; matrixId < 6; matrixId++) {
570 memset(sl->sl[0][matrixId], 16, 16);
571 sl->sl_dc[0][matrixId] = 16; // default for 16x16
572 sl->sl_dc[1][matrixId] = 16; // default for 32x32
574 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
575 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
576 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
577 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
578 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
579 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
580 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
581 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
582 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
583 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
584 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
585 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
586 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
587 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
590 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl)
592 uint8_t scaling_list_pred_mode_flag[4][6];
593 int32_t scaling_list_dc_coef[2][6];
594 int size_id, matrix_id, i, pos;
596 for (size_id = 0; size_id < 4; size_id++)
597 for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
598 scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
599 if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
600 unsigned int delta = get_ue_golomb_long(gb);
601 /* Only need to handle non-zero delta. Zero means default,
602 * which should already be in the arrays. */
604 // Copy from previous array.
605 if (matrix_id < delta) {
606 av_log(avctx, AV_LOG_ERROR,
607 "Invalid delta in scaling list data: %d.\n", delta);
608 return AVERROR_INVALIDDATA;
611 memcpy(sl->sl[size_id][matrix_id],
612 sl->sl[size_id][matrix_id - delta],
613 size_id > 0 ? 64 : 16);
615 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
618 int next_coef, coef_num;
619 int32_t scaling_list_delta_coef;
622 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
624 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
625 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
626 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
628 for (i = 0; i < coef_num; i++) {
630 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
631 ff_hevc_diag_scan4x4_x[i];
633 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
634 ff_hevc_diag_scan8x8_x[i];
636 scaling_list_delta_coef = get_se_golomb(gb);
637 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
638 sl->sl[size_id][matrix_id][pos] = next_coef;
646 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
648 const AVPixFmtDescriptor *desc;
649 if (sps->chroma_format_idc == 1) {
650 switch (sps->bit_depth) {
651 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
652 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
653 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
655 av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
657 return AVERROR_PATCHWELCOME;
660 av_log(avctx, AV_LOG_ERROR,
661 "non-4:2:0 support is currently unspecified.\n");
662 return AVERROR_PATCHWELCOME;
665 desc = av_pix_fmt_desc_get(sps->pix_fmt);
667 return AVERROR(EINVAL);
669 sps->hshift[0] = sps->vshift[0] = 0;
670 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
671 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
673 sps->pixel_shift = sps->bit_depth > 8;
678 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
679 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
682 int log2_diff_max_min_transform_block_size;
683 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
688 sps->vps_id = get_bits(gb, 4);
689 if (sps->vps_id >= MAX_VPS_COUNT) {
690 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
691 ret = AVERROR_INVALIDDATA;
695 if (vps_list && !vps_list[sps->vps_id]) {
696 av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
698 ret = AVERROR_INVALIDDATA;
702 sps->max_sub_layers = get_bits(gb, 3) + 1;
703 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
704 av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
705 sps->max_sub_layers);
706 ret = AVERROR_INVALIDDATA;
710 skip_bits1(gb); // temporal_id_nesting_flag
712 parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers);
714 *sps_id = get_ue_golomb_long(gb);
715 if (*sps_id >= MAX_SPS_COUNT) {
716 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
717 ret = AVERROR_INVALIDDATA;
721 sps->chroma_format_idc = get_ue_golomb_long(gb);
722 if (sps->chroma_format_idc != 1) {
723 avpriv_report_missing_feature(avctx, "chroma_format_idc %d",
724 sps->chroma_format_idc);
725 ret = AVERROR_PATCHWELCOME;
729 if (sps->chroma_format_idc == 3)
730 sps->separate_colour_plane_flag = get_bits1(gb);
732 sps->width = get_ue_golomb_long(gb);
733 sps->height = get_ue_golomb_long(gb);
734 if ((ret = av_image_check_size(sps->width,
735 sps->height, 0, avctx)) < 0)
738 if (get_bits1(gb)) { // pic_conformance_flag
739 //TODO: * 2 is only valid for 420
740 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
741 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
742 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
743 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
745 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
746 av_log(avctx, AV_LOG_DEBUG,
747 "discarding sps conformance window, "
748 "original values are l:%u r:%u t:%u b:%u\n",
749 sps->pic_conf_win.left_offset,
750 sps->pic_conf_win.right_offset,
751 sps->pic_conf_win.top_offset,
752 sps->pic_conf_win.bottom_offset);
754 sps->pic_conf_win.left_offset =
755 sps->pic_conf_win.right_offset =
756 sps->pic_conf_win.top_offset =
757 sps->pic_conf_win.bottom_offset = 0;
759 sps->output_window = sps->pic_conf_win;
762 sps->bit_depth = get_ue_golomb_long(gb) + 8;
763 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
764 if (bit_depth_chroma != sps->bit_depth) {
765 av_log(avctx, AV_LOG_ERROR,
766 "Luma bit depth (%d) is different from chroma bit depth (%d), "
767 "this is unsupported.\n",
768 sps->bit_depth, bit_depth_chroma);
769 ret = AVERROR_INVALIDDATA;
774 ret = map_pixel_format(avctx, sps);
778 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
779 if (sps->log2_max_poc_lsb > 16) {
780 av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
781 sps->log2_max_poc_lsb - 4);
782 ret = AVERROR_INVALIDDATA;
786 sublayer_ordering_info = get_bits1(gb);
787 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
788 for (i = start; i < sps->max_sub_layers; i++) {
789 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
790 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
791 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
792 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
793 av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
794 sps->temporal_layer[i].max_dec_pic_buffering - 1);
795 ret = AVERROR_INVALIDDATA;
798 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
799 av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
800 sps->temporal_layer[i].num_reorder_pics);
801 if (avctx->err_recognition & AV_EF_EXPLODE ||
802 sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
803 ret = AVERROR_INVALIDDATA;
806 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
810 if (!sublayer_ordering_info) {
811 for (i = 0; i < start; i++) {
812 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
813 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
814 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
818 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
819 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
820 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
821 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
822 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
823 sps->log2_min_tb_size;
825 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
826 av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
827 ret = AVERROR_INVALIDDATA;
830 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
831 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
833 sps->scaling_list_enable_flag = get_bits1(gb);
834 if (sps->scaling_list_enable_flag) {
835 set_default_scaling_list_data(&sps->scaling_list);
838 ret = scaling_list_data(gb, avctx, &sps->scaling_list);
844 sps->amp_enabled_flag = get_bits1(gb);
845 sps->sao_enabled = get_bits1(gb);
847 sps->pcm_enabled_flag = get_bits1(gb);
848 if (sps->pcm_enabled_flag) {
849 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
850 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
851 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
852 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
853 get_ue_golomb_long(gb);
854 if (sps->pcm.bit_depth > sps->bit_depth) {
855 av_log(avctx, AV_LOG_ERROR,
856 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
857 sps->pcm.bit_depth, sps->bit_depth);
858 ret = AVERROR_INVALIDDATA;
862 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
865 sps->nb_st_rps = get_ue_golomb_long(gb);
866 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
867 av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
869 ret = AVERROR_INVALIDDATA;
872 for (i = 0; i < sps->nb_st_rps; i++) {
873 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
878 sps->long_term_ref_pics_present_flag = get_bits1(gb);
879 if (sps->long_term_ref_pics_present_flag) {
880 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
881 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
882 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
883 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
887 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
888 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
889 sps->vui.sar = (AVRational){0, 1};
890 vui_present = get_bits1(gb);
892 decode_vui(gb, avctx, apply_defdispwin, sps);
893 skip_bits1(gb); // sps_extension_flag
895 if (apply_defdispwin) {
896 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
897 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
898 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
899 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
901 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
902 !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {
903 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
904 av_log(avctx, AV_LOG_WARNING, "Reducing left output window to %d "
905 "chroma samples to preserve alignment.\n",
906 sps->output_window.left_offset);
908 sps->output_width = sps->width -
909 (sps->output_window.left_offset + sps->output_window.right_offset);
910 sps->output_height = sps->height -
911 (sps->output_window.top_offset + sps->output_window.bottom_offset);
912 if (sps->output_width <= 0 || sps->output_height <= 0) {
913 av_log(avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
914 sps->output_width, sps->output_height);
915 if (avctx->err_recognition & AV_EF_EXPLODE) {
916 ret = AVERROR_INVALIDDATA;
919 av_log(avctx, AV_LOG_WARNING,
920 "Displaying the whole video surface.\n");
921 sps->output_window.left_offset =
922 sps->output_window.right_offset =
923 sps->output_window.top_offset =
924 sps->output_window.bottom_offset = 0;
925 sps->output_width = sps->width;
926 sps->output_height = sps->height;
929 // Inferred parameters
930 sps->log2_ctb_size = sps->log2_min_cb_size +
931 sps->log2_diff_max_min_coding_block_size;
932 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
934 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
935 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
936 sps->ctb_size = sps->ctb_width * sps->ctb_height;
938 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
939 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
940 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
941 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
942 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
943 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
945 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
947 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
948 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
949 av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
953 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
954 av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
957 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
958 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
959 sps->max_transform_hierarchy_depth_inter);
962 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
963 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
964 sps->max_transform_hierarchy_depth_intra);
967 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
968 av_log(avctx, AV_LOG_ERROR,
969 "max transform block size out of range: %d\n",
970 sps->log2_max_trafo_size);
977 return ret < 0 ? ret : AVERROR_INVALIDDATA;
980 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
981 HEVCParamSets *ps, int apply_defdispwin)
984 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
989 return AVERROR(ENOMEM);
990 sps = (HEVCSPS*)sps_buf->data;
992 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
994 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
996 ps->vps_list, avctx);
998 av_buffer_unref(&sps_buf);
1002 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1003 av_log(avctx, AV_LOG_DEBUG,
1004 "Parsed SPS: id %d; coded wxh: %dx%d; "
1005 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1006 sps_id, sps->width, sps->height,
1007 sps->output_width, sps->output_height,
1008 av_get_pix_fmt_name(sps->pix_fmt));
1011 /* check if this is a repeat of an already parsed SPS, then keep the
1013 * otherwise drop all PPSes that depend on it */
1014 if (ps->sps_list[sps_id] &&
1015 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1016 av_buffer_unref(&sps_buf);
1018 remove_sps(ps, sps_id);
1019 ps->sps_list[sps_id] = sps_buf;
1025 static void hevc_pps_free(void *opaque, uint8_t *data)
1027 HEVCPPS *pps = (HEVCPPS*)data;
1029 av_freep(&pps->column_width);
1030 av_freep(&pps->row_height);
1031 av_freep(&pps->col_bd);
1032 av_freep(&pps->row_bd);
1033 av_freep(&pps->col_idxX);
1034 av_freep(&pps->ctb_addr_rs_to_ts);
1035 av_freep(&pps->ctb_addr_ts_to_rs);
1036 av_freep(&pps->tile_pos_rs);
1037 av_freep(&pps->tile_id);
1038 av_freep(&pps->min_tb_addr_zs);
1043 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1044 HEVCPPS *pps, HEVCSPS *sps)
1047 int pic_area_in_ctbs, pic_area_in_min_tbs;
1048 int i, j, x, y, ctb_addr_rs, tile_id;
1050 // Inferred parameters
1051 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1052 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1053 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1054 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1055 return AVERROR(ENOMEM);
1057 if (pps->uniform_spacing_flag) {
1058 if (!pps->column_width) {
1059 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1060 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1062 if (!pps->column_width || !pps->row_height)
1063 return AVERROR(ENOMEM);
1065 for (i = 0; i < pps->num_tile_columns; i++) {
1066 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1067 (i * sps->ctb_width) / pps->num_tile_columns;
1070 for (i = 0; i < pps->num_tile_rows; i++) {
1071 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1072 (i * sps->ctb_height) / pps->num_tile_rows;
1077 for (i = 0; i < pps->num_tile_columns; i++)
1078 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1081 for (i = 0; i < pps->num_tile_rows; i++)
1082 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1084 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1085 if (i > pps->col_bd[j])
1087 pps->col_idxX[i] = j;
1093 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1094 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1096 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1097 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1098 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1099 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1100 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1101 !pps->tile_id || !pps->min_tb_addr_zs) {
1102 return AVERROR(ENOMEM);
1105 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1106 int tb_x = ctb_addr_rs % sps->ctb_width;
1107 int tb_y = ctb_addr_rs / sps->ctb_width;
1112 for (i = 0; i < pps->num_tile_columns; i++) {
1113 if (tb_x < pps->col_bd[i + 1]) {
1119 for (i = 0; i < pps->num_tile_rows; i++) {
1120 if (tb_y < pps->row_bd[i + 1]) {
1126 for (i = 0; i < tile_x; i++)
1127 val += pps->row_height[tile_y] * pps->column_width[i];
1128 for (i = 0; i < tile_y; i++)
1129 val += sps->ctb_width * pps->row_height[i];
1131 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1132 tb_x - pps->col_bd[tile_x];
1134 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1135 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1138 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1139 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1140 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1141 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1142 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1144 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1145 if (!pps->tile_pos_rs)
1146 return AVERROR(ENOMEM);
1148 for (j = 0; j < pps->num_tile_rows; j++)
1149 for (i = 0; i < pps->num_tile_columns; i++)
1150 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1151 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1153 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1154 for (y = 0; y < sps->min_tb_height; y++) {
1155 for (x = 0; x < sps->min_tb_width; x++) {
1156 int tb_x = x >> log2_diff;
1157 int tb_y = y >> log2_diff;
1158 int rs = sps->ctb_width * tb_y + tb_x;
1159 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1160 for (i = 0; i < log2_diff; i++) {
1162 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1164 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1171 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1174 HEVCSPS *sps = NULL;
1176 unsigned int pps_id = 0;
1178 AVBufferRef *pps_buf;
1179 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1182 return AVERROR(ENOMEM);
1184 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1185 hevc_pps_free, NULL, 0);
1188 return AVERROR(ENOMEM);
1191 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1194 pps->loop_filter_across_tiles_enabled_flag = 1;
1195 pps->num_tile_columns = 1;
1196 pps->num_tile_rows = 1;
1197 pps->uniform_spacing_flag = 1;
1198 pps->disable_dbf = 0;
1199 pps->beta_offset = 0;
1203 pps_id = get_ue_golomb_long(gb);
1204 if (pps_id >= MAX_PPS_COUNT) {
1205 av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1206 ret = AVERROR_INVALIDDATA;
1209 pps->sps_id = get_ue_golomb_long(gb);
1210 if (pps->sps_id >= MAX_SPS_COUNT) {
1211 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1212 ret = AVERROR_INVALIDDATA;
1215 if (!ps->sps_list[pps->sps_id]) {
1216 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1217 ret = AVERROR_INVALIDDATA;
1220 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1222 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1223 pps->output_flag_present_flag = get_bits1(gb);
1224 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1226 pps->sign_data_hiding_flag = get_bits1(gb);
1228 pps->cabac_init_present_flag = get_bits1(gb);
1230 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1231 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1233 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1235 pps->constrained_intra_pred_flag = get_bits1(gb);
1236 pps->transform_skip_enabled_flag = get_bits1(gb);
1238 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1239 pps->diff_cu_qp_delta_depth = 0;
1240 if (pps->cu_qp_delta_enabled_flag)
1241 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1243 pps->cb_qp_offset = get_se_golomb(gb);
1244 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1245 av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1247 ret = AVERROR_INVALIDDATA;
1250 pps->cr_qp_offset = get_se_golomb(gb);
1251 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1252 av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1254 ret = AVERROR_INVALIDDATA;
1257 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1259 pps->weighted_pred_flag = get_bits1(gb);
1260 pps->weighted_bipred_flag = get_bits1(gb);
1262 pps->transquant_bypass_enable_flag = get_bits1(gb);
1263 pps->tiles_enabled_flag = get_bits1(gb);
1264 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1266 if (pps->tiles_enabled_flag) {
1267 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1268 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1269 if (pps->num_tile_columns == 0 ||
1270 pps->num_tile_columns >= sps->width) {
1271 av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1272 pps->num_tile_columns - 1);
1273 ret = AVERROR_INVALIDDATA;
1276 if (pps->num_tile_rows == 0 ||
1277 pps->num_tile_rows >= sps->height) {
1278 av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1279 pps->num_tile_rows - 1);
1280 ret = AVERROR_INVALIDDATA;
1284 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1285 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1286 if (!pps->column_width || !pps->row_height) {
1287 ret = AVERROR(ENOMEM);
1291 pps->uniform_spacing_flag = get_bits1(gb);
1292 if (!pps->uniform_spacing_flag) {
1294 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1295 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1296 sum += pps->column_width[i];
1298 if (sum >= sps->ctb_width) {
1299 av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1300 ret = AVERROR_INVALIDDATA;
1303 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1306 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1307 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1308 sum += pps->row_height[i];
1310 if (sum >= sps->ctb_height) {
1311 av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1312 ret = AVERROR_INVALIDDATA;
1315 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1317 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1320 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1322 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1323 if (pps->deblocking_filter_control_present_flag) {
1324 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1325 pps->disable_dbf = get_bits1(gb);
1326 if (!pps->disable_dbf) {
1327 pps->beta_offset = get_se_golomb(gb) * 2;
1328 pps->tc_offset = get_se_golomb(gb) * 2;
1329 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1330 av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1331 pps->beta_offset/2);
1332 ret = AVERROR_INVALIDDATA;
1335 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1336 av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1338 ret = AVERROR_INVALIDDATA;
1344 pps->scaling_list_data_present_flag = get_bits1(gb);
1345 if (pps->scaling_list_data_present_flag) {
1346 set_default_scaling_list_data(&pps->scaling_list);
1347 ret = scaling_list_data(gb, avctx, &pps->scaling_list);
1351 pps->lists_modification_present_flag = get_bits1(gb);
1352 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1353 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1354 av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1355 pps->log2_parallel_merge_level - 2);
1356 ret = AVERROR_INVALIDDATA;
1360 pps->slice_header_extension_present_flag = get_bits1(gb);
1361 skip_bits1(gb); // pps_extension_flag
1363 ret = setup_pps(avctx, gb, pps, sps);
1367 remove_pps(ps, pps_id);
1368 ps->pps_list[pps_id] = pps_buf;
1373 av_buffer_unref(&pps_buf);