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(HEVCContext *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(HEVCContext *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(HEVCContext *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(HEVCContext *s, ShortTermRPS *rps,
110 const HEVCSPS *sps, int is_slice_header)
112 HEVCLocalContext *lc = &s->HEVClc;
113 uint8_t rps_predict = 0;
120 GetBitContext *gb = &lc->gb;
122 if (rps != sps->st_rps && sps->nb_st_rps)
123 rps_predict = get_bits1(gb);
126 const ShortTermRPS *rps_ridx;
127 int delta_rps, abs_delta_rps;
128 uint8_t use_delta_flag = 0;
129 uint8_t delta_rps_sign;
131 if (is_slice_header) {
132 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
133 if (delta_idx > sps->nb_st_rps) {
134 av_log(s->avctx, AV_LOG_ERROR,
135 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
136 delta_idx, sps->nb_st_rps);
137 return AVERROR_INVALIDDATA;
139 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
141 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
143 delta_rps_sign = get_bits1(gb);
144 abs_delta_rps = get_ue_golomb_long(gb) + 1;
145 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
146 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
147 int used = rps->used[k] = get_bits1(gb);
150 use_delta_flag = get_bits1(gb);
152 if (used || use_delta_flag) {
153 if (i < rps_ridx->num_delta_pocs)
154 delta_poc = delta_rps + rps_ridx->delta_poc[i];
156 delta_poc = delta_rps;
157 rps->delta_poc[k] = delta_poc;
166 rps->num_delta_pocs = k;
167 rps->num_negative_pics = k0;
168 // sort in increasing order (smallest first)
169 if (rps->num_delta_pocs != 0) {
171 for (i = 1; i < rps->num_delta_pocs; i++) {
172 delta_poc = rps->delta_poc[i];
174 for (k = i - 1; k >= 0; k--) {
175 tmp = rps->delta_poc[k];
176 if (delta_poc < tmp) {
177 rps->delta_poc[k + 1] = tmp;
178 rps->used[k + 1] = rps->used[k];
179 rps->delta_poc[k] = delta_poc;
185 if ((rps->num_negative_pics >> 1) != 0) {
187 k = rps->num_negative_pics - 1;
188 // flip the negative values to largest first
189 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
190 delta_poc = rps->delta_poc[i];
192 rps->delta_poc[i] = rps->delta_poc[k];
193 rps->used[i] = rps->used[k];
194 rps->delta_poc[k] = delta_poc;
200 unsigned int prev, nb_positive_pics;
201 rps->num_negative_pics = get_ue_golomb_long(gb);
202 nb_positive_pics = get_ue_golomb_long(gb);
204 if (rps->num_negative_pics >= MAX_REFS ||
205 nb_positive_pics >= MAX_REFS) {
206 av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
207 return AVERROR_INVALIDDATA;
210 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
211 if (rps->num_delta_pocs) {
213 for (i = 0; i < rps->num_negative_pics; i++) {
214 delta_poc = get_ue_golomb_long(gb) + 1;
216 rps->delta_poc[i] = prev;
217 rps->used[i] = get_bits1(gb);
220 for (i = 0; i < nb_positive_pics; i++) {
221 delta_poc = get_ue_golomb_long(gb) + 1;
223 rps->delta_poc[rps->num_negative_pics + i] = prev;
224 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
232 static void decode_profile_tier_level(HEVCContext *s, PTLCommon *ptl)
235 GetBitContext *gb = &s->HEVClc.gb;
237 ptl->profile_space = get_bits(gb, 2);
238 ptl->tier_flag = get_bits1(gb);
239 ptl->profile_idc = get_bits(gb, 5);
240 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
241 av_log(s->avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
242 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
243 av_log(s->avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
244 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
245 av_log(s->avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
247 av_log(s->avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
249 for (i = 0; i < 32; i++)
250 ptl->profile_compatibility_flag[i] = get_bits1(gb);
251 ptl->progressive_source_flag = get_bits1(gb);
252 ptl->interlaced_source_flag = get_bits1(gb);
253 ptl->non_packed_constraint_flag = get_bits1(gb);
254 ptl->frame_only_constraint_flag = get_bits1(gb);
256 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
257 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
258 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
261 static void parse_ptl(HEVCContext *s, PTL *ptl, int max_num_sub_layers)
264 GetBitContext *gb = &s->HEVClc.gb;
265 decode_profile_tier_level(s, &ptl->general_ptl);
266 ptl->general_ptl.level_idc = get_bits(gb, 8);
268 for (i = 0; i < max_num_sub_layers - 1; i++) {
269 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
270 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
272 if (max_num_sub_layers - 1 > 0)
273 for (i = max_num_sub_layers - 1; i < 8; i++)
274 skip_bits(gb, 2); // reserved_zero_2bits[i]
275 for (i = 0; i < max_num_sub_layers - 1; i++) {
276 if (ptl->sub_layer_profile_present_flag[i])
277 decode_profile_tier_level(s, &ptl->sub_layer_ptl[i]);
278 if (ptl->sub_layer_level_present_flag[i])
279 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
283 static void decode_sublayer_hrd(HEVCContext *s, unsigned int nb_cpb,
284 int subpic_params_present)
286 GetBitContext *gb = &s->HEVClc.gb;
289 for (i = 0; i < nb_cpb; i++) {
290 get_ue_golomb_long(gb); // bit_rate_value_minus1
291 get_ue_golomb_long(gb); // cpb_size_value_minus1
293 if (subpic_params_present) {
294 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
295 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
297 skip_bits1(gb); // cbr_flag
301 static void decode_hrd(HEVCContext *s, int common_inf_present,
304 GetBitContext *gb = &s->HEVClc.gb;
305 int nal_params_present = 0, vcl_params_present = 0;
306 int subpic_params_present = 0;
309 if (common_inf_present) {
310 nal_params_present = get_bits1(gb);
311 vcl_params_present = get_bits1(gb);
313 if (nal_params_present || vcl_params_present) {
314 subpic_params_present = get_bits1(gb);
316 if (subpic_params_present) {
317 skip_bits(gb, 8); // tick_divisor_minus2
318 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
319 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
320 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
323 skip_bits(gb, 4); // bit_rate_scale
324 skip_bits(gb, 4); // cpb_size_scale
326 if (subpic_params_present)
327 skip_bits(gb, 4); // cpb_size_du_scale
329 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
330 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
331 skip_bits(gb, 5); // dpb_output_delay_length_minus1
335 for (i = 0; i < max_sublayers; i++) {
337 unsigned int nb_cpb = 1;
338 int fixed_rate = get_bits1(gb);
341 fixed_rate = get_bits1(gb);
344 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
346 low_delay = get_bits1(gb);
349 nb_cpb = get_ue_golomb_long(gb) + 1;
351 if (nal_params_present)
352 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
353 if (vcl_params_present)
354 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
358 int ff_hevc_decode_nal_vps(HEVCContext *s)
361 GetBitContext *gb = &s->HEVClc.gb;
364 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
367 return AVERROR(ENOMEM);
368 vps = (HEVCVPS*)vps_buf->data;
370 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
372 vps_id = get_bits(gb, 4);
373 if (vps_id >= MAX_VPS_COUNT) {
374 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
378 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
379 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
383 vps->vps_max_layers = get_bits(gb, 6) + 1;
384 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
385 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
387 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
388 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
392 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
393 av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
394 vps->vps_max_sub_layers);
398 parse_ptl(s, &vps->ptl, vps->vps_max_sub_layers);
400 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
402 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
403 for (; i < vps->vps_max_sub_layers; i++) {
404 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
405 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
406 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
408 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
409 av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
410 vps->vps_max_dec_pic_buffering[i] - 1);
413 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
414 av_log(s->avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
415 vps->vps_num_reorder_pics[i]);
416 if (s->avctx->err_recognition & AV_EF_EXPLODE)
421 vps->vps_max_layer_id = get_bits(gb, 6);
422 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
423 for (i = 1; i < vps->vps_num_layer_sets; i++)
424 for (j = 0; j <= vps->vps_max_layer_id; j++)
425 skip_bits(gb, 1); // layer_id_included_flag[i][j]
427 vps->vps_timing_info_present_flag = get_bits1(gb);
428 if (vps->vps_timing_info_present_flag) {
429 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
430 vps->vps_time_scale = get_bits_long(gb, 32);
431 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
432 if (vps->vps_poc_proportional_to_timing_flag)
433 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
434 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
435 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
436 int common_inf_present = 1;
438 get_ue_golomb_long(gb); // hrd_layer_set_idx
440 common_inf_present = get_bits1(gb);
441 decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
444 get_bits1(gb); /* vps_extension_flag */
446 if (s->vps_list[vps_id] &&
447 !memcmp(s->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
448 av_buffer_unref(&vps_buf);
450 remove_vps(s, vps_id);
451 s->vps_list[vps_id] = vps_buf;
457 av_buffer_unref(&vps_buf);
458 return AVERROR_INVALIDDATA;
461 static void decode_vui(HEVCContext *s, HEVCSPS *sps)
463 VUI *vui = &sps->vui;
464 GetBitContext *gb = &s->HEVClc.gb;
467 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
469 sar_present = get_bits1(gb);
471 uint8_t sar_idx = get_bits(gb, 8);
472 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
473 vui->sar = vui_sar[sar_idx];
474 else if (sar_idx == 255) {
475 vui->sar.num = get_bits(gb, 16);
476 vui->sar.den = get_bits(gb, 16);
478 av_log(s->avctx, AV_LOG_WARNING,
479 "Unknown SAR index: %u.\n", sar_idx);
482 vui->overscan_info_present_flag = get_bits1(gb);
483 if (vui->overscan_info_present_flag)
484 vui->overscan_appropriate_flag = get_bits1(gb);
486 vui->video_signal_type_present_flag = get_bits1(gb);
487 if (vui->video_signal_type_present_flag) {
488 vui->video_format = get_bits(gb, 3);
489 vui->video_full_range_flag = get_bits1(gb);
490 vui->colour_description_present_flag = get_bits1(gb);
491 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
492 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
493 if (vui->colour_description_present_flag) {
494 vui->colour_primaries = get_bits(gb, 8);
495 vui->transfer_characteristic = get_bits(gb, 8);
496 vui->matrix_coeffs = get_bits(gb, 8);
498 // Set invalid values to "unspecified"
499 if (vui->colour_primaries >= AVCOL_PRI_NB)
500 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
501 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
502 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
503 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
504 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
508 vui->chroma_loc_info_present_flag = get_bits1(gb);
509 if (vui->chroma_loc_info_present_flag) {
510 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
511 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
514 vui->neutra_chroma_indication_flag = get_bits1(gb);
515 vui->field_seq_flag = get_bits1(gb);
516 vui->frame_field_info_present_flag = get_bits1(gb);
518 vui->default_display_window_flag = get_bits1(gb);
519 if (vui->default_display_window_flag) {
520 //TODO: * 2 is only valid for 420
521 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
522 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
523 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
524 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
526 if (s->apply_defdispwin &&
527 s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
528 av_log(s->avctx, AV_LOG_DEBUG,
529 "discarding vui default display window, "
530 "original values are l:%u r:%u t:%u b:%u\n",
531 vui->def_disp_win.left_offset,
532 vui->def_disp_win.right_offset,
533 vui->def_disp_win.top_offset,
534 vui->def_disp_win.bottom_offset);
536 vui->def_disp_win.left_offset =
537 vui->def_disp_win.right_offset =
538 vui->def_disp_win.top_offset =
539 vui->def_disp_win.bottom_offset = 0;
543 vui->vui_timing_info_present_flag = get_bits1(gb);
544 if (vui->vui_timing_info_present_flag) {
545 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
546 vui->vui_time_scale = get_bits_long(gb, 32);
547 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
548 if (vui->vui_poc_proportional_to_timing_flag)
549 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
550 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
551 if (vui->vui_hrd_parameters_present_flag)
552 decode_hrd(s, 1, sps->max_sub_layers);
555 vui->bitstream_restriction_flag = get_bits1(gb);
556 if (vui->bitstream_restriction_flag) {
557 vui->tiles_fixed_structure_flag = get_bits1(gb);
558 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
559 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
560 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
561 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
562 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
563 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
564 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
568 static void set_default_scaling_list_data(ScalingList *sl)
572 for (matrixId = 0; matrixId < 6; matrixId++) {
574 memset(sl->sl[0][matrixId], 16, 16);
575 sl->sl_dc[0][matrixId] = 16; // default for 16x16
576 sl->sl_dc[1][matrixId] = 16; // default for 32x32
578 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
579 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
580 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
581 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
582 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
583 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
584 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
585 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
586 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
587 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
588 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
589 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
590 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
591 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
594 static int scaling_list_data(HEVCContext *s, ScalingList *sl)
596 GetBitContext *gb = &s->HEVClc.gb;
597 uint8_t scaling_list_pred_mode_flag[4][6];
598 int32_t scaling_list_dc_coef[2][6];
599 int size_id, matrix_id, i, pos;
601 for (size_id = 0; size_id < 4; size_id++)
602 for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
603 scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
604 if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
605 unsigned int delta = get_ue_golomb_long(gb);
606 /* Only need to handle non-zero delta. Zero means default,
607 * which should already be in the arrays. */
609 // Copy from previous array.
610 if (matrix_id < delta) {
611 av_log(s->avctx, AV_LOG_ERROR,
612 "Invalid delta in scaling list data: %d.\n", delta);
613 return AVERROR_INVALIDDATA;
616 memcpy(sl->sl[size_id][matrix_id],
617 sl->sl[size_id][matrix_id - delta],
618 size_id > 0 ? 64 : 16);
620 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
623 int next_coef, coef_num;
624 int32_t scaling_list_delta_coef;
627 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
629 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
630 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
631 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
633 for (i = 0; i < coef_num; i++) {
635 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
636 ff_hevc_diag_scan4x4_x[i];
638 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
639 ff_hevc_diag_scan8x8_x[i];
641 scaling_list_delta_coef = get_se_golomb(gb);
642 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
643 sl->sl[size_id][matrix_id][pos] = next_coef;
651 int ff_hevc_decode_nal_sps(HEVCContext *s)
653 const AVPixFmtDescriptor *desc;
654 GetBitContext *gb = &s->HEVClc.gb;
656 unsigned int sps_id = 0;
657 int log2_diff_max_min_transform_block_size;
658 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
662 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
665 return AVERROR(ENOMEM);
666 sps = (HEVCSPS*)sps_buf->data;
668 av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
672 sps->vps_id = get_bits(gb, 4);
673 if (sps->vps_id >= MAX_VPS_COUNT) {
674 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
675 ret = AVERROR_INVALIDDATA;
679 if (!s->vps_list[sps->vps_id]) {
680 av_log(s->avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
682 ret = AVERROR_INVALIDDATA;
686 sps->max_sub_layers = get_bits(gb, 3) + 1;
687 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
688 av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
689 sps->max_sub_layers);
690 ret = AVERROR_INVALIDDATA;
694 skip_bits1(gb); // temporal_id_nesting_flag
696 parse_ptl(s, &sps->ptl, sps->max_sub_layers);
698 sps_id = get_ue_golomb_long(gb);
699 if (sps_id >= MAX_SPS_COUNT) {
700 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
701 ret = AVERROR_INVALIDDATA;
705 sps->chroma_format_idc = get_ue_golomb_long(gb);
706 if (sps->chroma_format_idc != 1) {
707 avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
708 ret = AVERROR_PATCHWELCOME;
712 if (sps->chroma_format_idc == 3)
713 sps->separate_colour_plane_flag = get_bits1(gb);
715 sps->width = get_ue_golomb_long(gb);
716 sps->height = get_ue_golomb_long(gb);
717 if ((ret = av_image_check_size(sps->width,
718 sps->height, 0, s->avctx)) < 0)
721 if (get_bits1(gb)) { // pic_conformance_flag
722 //TODO: * 2 is only valid for 420
723 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
724 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
725 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
726 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
728 if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
729 av_log(s->avctx, AV_LOG_DEBUG,
730 "discarding sps conformance window, "
731 "original values are l:%u r:%u t:%u b:%u\n",
732 sps->pic_conf_win.left_offset,
733 sps->pic_conf_win.right_offset,
734 sps->pic_conf_win.top_offset,
735 sps->pic_conf_win.bottom_offset);
737 sps->pic_conf_win.left_offset =
738 sps->pic_conf_win.right_offset =
739 sps->pic_conf_win.top_offset =
740 sps->pic_conf_win.bottom_offset = 0;
742 sps->output_window = sps->pic_conf_win;
745 sps->bit_depth = get_ue_golomb_long(gb) + 8;
746 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
747 if (bit_depth_chroma != sps->bit_depth) {
748 av_log(s->avctx, AV_LOG_ERROR,
749 "Luma bit depth (%d) is different from chroma bit depth (%d), "
750 "this is unsupported.\n",
751 sps->bit_depth, bit_depth_chroma);
752 ret = AVERROR_INVALIDDATA;
756 if (sps->chroma_format_idc == 1) {
757 switch (sps->bit_depth) {
758 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
759 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
760 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
762 av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
764 ret = AVERROR_PATCHWELCOME;
768 av_log(s->avctx, AV_LOG_ERROR,
769 "non-4:2:0 support is currently unspecified.\n");
770 return AVERROR_PATCHWELCOME;
773 desc = av_pix_fmt_desc_get(sps->pix_fmt);
775 ret = AVERROR(EINVAL);
779 sps->hshift[0] = sps->vshift[0] = 0;
780 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
781 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
783 sps->pixel_shift = sps->bit_depth > 8;
785 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
786 if (sps->log2_max_poc_lsb > 16) {
787 av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
788 sps->log2_max_poc_lsb - 4);
789 ret = AVERROR_INVALIDDATA;
793 sublayer_ordering_info = get_bits1(gb);
794 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
795 for (i = start; i < sps->max_sub_layers; i++) {
796 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
797 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
798 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
799 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
800 av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
801 sps->temporal_layer[i].max_dec_pic_buffering - 1);
802 ret = AVERROR_INVALIDDATA;
805 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
806 av_log(s->avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
807 sps->temporal_layer[i].num_reorder_pics);
808 if (s->avctx->err_recognition & AV_EF_EXPLODE ||
809 sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
810 ret = AVERROR_INVALIDDATA;
813 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
817 if (!sublayer_ordering_info) {
818 for (i = 0; i < start; i++) {
819 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
820 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
821 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
825 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
826 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
827 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
828 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
829 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
830 sps->log2_min_tb_size;
832 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
833 av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
834 ret = AVERROR_INVALIDDATA;
837 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
838 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
840 sps->scaling_list_enable_flag = get_bits1(gb);
841 if (sps->scaling_list_enable_flag) {
842 set_default_scaling_list_data(&sps->scaling_list);
845 ret = scaling_list_data(s, &sps->scaling_list);
851 sps->amp_enabled_flag = get_bits1(gb);
852 sps->sao_enabled = get_bits1(gb);
854 sps->pcm_enabled_flag = get_bits1(gb);
855 if (sps->pcm_enabled_flag) {
856 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
857 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
858 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
859 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
860 get_ue_golomb_long(gb);
861 if (sps->pcm.bit_depth > sps->bit_depth) {
862 av_log(s->avctx, AV_LOG_ERROR,
863 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
864 sps->pcm.bit_depth, sps->bit_depth);
865 ret = AVERROR_INVALIDDATA;
869 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
872 sps->nb_st_rps = get_ue_golomb_long(gb);
873 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
874 av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
876 ret = AVERROR_INVALIDDATA;
879 for (i = 0; i < sps->nb_st_rps; i++) {
880 if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
885 sps->long_term_ref_pics_present_flag = get_bits1(gb);
886 if (sps->long_term_ref_pics_present_flag) {
887 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
888 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
889 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
890 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
894 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
895 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
896 sps->vui.sar = (AVRational){0, 1};
897 vui_present = get_bits1(gb);
900 skip_bits1(gb); // sps_extension_flag
902 if (s->apply_defdispwin) {
903 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
904 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
905 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
906 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
908 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
909 !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
910 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
911 av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
912 "chroma samples to preserve alignment.\n",
913 sps->output_window.left_offset);
915 sps->output_width = sps->width -
916 (sps->output_window.left_offset + sps->output_window.right_offset);
917 sps->output_height = sps->height -
918 (sps->output_window.top_offset + sps->output_window.bottom_offset);
919 if (sps->output_width <= 0 || sps->output_height <= 0) {
920 av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
921 sps->output_width, sps->output_height);
922 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
923 ret = AVERROR_INVALIDDATA;
926 av_log(s->avctx, AV_LOG_WARNING,
927 "Displaying the whole video surface.\n");
928 sps->output_window.left_offset =
929 sps->output_window.right_offset =
930 sps->output_window.top_offset =
931 sps->output_window.bottom_offset = 0;
932 sps->output_width = sps->width;
933 sps->output_height = sps->height;
936 // Inferred parameters
937 sps->log2_ctb_size = sps->log2_min_cb_size +
938 sps->log2_diff_max_min_coding_block_size;
939 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
941 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
942 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
943 sps->ctb_size = sps->ctb_width * sps->ctb_height;
945 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
946 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
947 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
948 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
949 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
950 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
952 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
954 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
955 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
956 av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
960 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
961 av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
964 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
965 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
966 sps->max_transform_hierarchy_depth_inter);
969 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
970 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
971 sps->max_transform_hierarchy_depth_intra);
974 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
975 av_log(s->avctx, AV_LOG_ERROR,
976 "max transform block size out of range: %d\n",
977 sps->log2_max_trafo_size);
981 if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
982 av_log(s->avctx, AV_LOG_DEBUG,
983 "Parsed SPS: id %d; coded wxh: %dx%d; "
984 "cropped wxh: %dx%d; pix_fmt: %s.\n",
985 sps_id, sps->width, sps->height,
986 sps->output_width, sps->output_height,
987 av_get_pix_fmt_name(sps->pix_fmt));
990 /* check if this is a repeat of an already parsed SPS, then keep the
992 * otherwise drop all PPSes that depend on it */
993 if (s->sps_list[sps_id] &&
994 !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
995 av_buffer_unref(&sps_buf);
997 remove_sps(s, sps_id);
998 s->sps_list[sps_id] = sps_buf;
1004 av_buffer_unref(&sps_buf);
1008 static void hevc_pps_free(void *opaque, uint8_t *data)
1010 HEVCPPS *pps = (HEVCPPS*)data;
1012 av_freep(&pps->column_width);
1013 av_freep(&pps->row_height);
1014 av_freep(&pps->col_bd);
1015 av_freep(&pps->row_bd);
1016 av_freep(&pps->col_idxX);
1017 av_freep(&pps->ctb_addr_rs_to_ts);
1018 av_freep(&pps->ctb_addr_ts_to_rs);
1019 av_freep(&pps->tile_pos_rs);
1020 av_freep(&pps->tile_id);
1021 av_freep(&pps->min_tb_addr_zs);
1026 int ff_hevc_decode_nal_pps(HEVCContext *s)
1028 GetBitContext *gb = &s->HEVClc.gb;
1029 HEVCSPS *sps = NULL;
1030 int pic_area_in_ctbs, pic_area_in_min_tbs;
1031 int log2_diff_ctb_min_tb_size;
1032 int i, j, x, y, ctb_addr_rs, tile_id;
1034 unsigned int pps_id = 0;
1036 AVBufferRef *pps_buf;
1037 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1040 return AVERROR(ENOMEM);
1042 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1043 hevc_pps_free, NULL, 0);
1046 return AVERROR(ENOMEM);
1049 av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1052 pps->loop_filter_across_tiles_enabled_flag = 1;
1053 pps->num_tile_columns = 1;
1054 pps->num_tile_rows = 1;
1055 pps->uniform_spacing_flag = 1;
1056 pps->disable_dbf = 0;
1057 pps->beta_offset = 0;
1061 pps_id = get_ue_golomb_long(gb);
1062 if (pps_id >= MAX_PPS_COUNT) {
1063 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1064 ret = AVERROR_INVALIDDATA;
1067 pps->sps_id = get_ue_golomb_long(gb);
1068 if (pps->sps_id >= MAX_SPS_COUNT) {
1069 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1070 ret = AVERROR_INVALIDDATA;
1073 if (!s->sps_list[pps->sps_id]) {
1074 av_log(s->avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1075 ret = AVERROR_INVALIDDATA;
1078 sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
1080 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1081 pps->output_flag_present_flag = get_bits1(gb);
1082 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1084 pps->sign_data_hiding_flag = get_bits1(gb);
1086 pps->cabac_init_present_flag = get_bits1(gb);
1088 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1089 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1091 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1093 pps->constrained_intra_pred_flag = get_bits1(gb);
1094 pps->transform_skip_enabled_flag = get_bits1(gb);
1096 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1097 pps->diff_cu_qp_delta_depth = 0;
1098 if (pps->cu_qp_delta_enabled_flag)
1099 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1101 pps->cb_qp_offset = get_se_golomb(gb);
1102 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1103 av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1105 ret = AVERROR_INVALIDDATA;
1108 pps->cr_qp_offset = get_se_golomb(gb);
1109 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1110 av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1112 ret = AVERROR_INVALIDDATA;
1115 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1117 pps->weighted_pred_flag = get_bits1(gb);
1118 pps->weighted_bipred_flag = get_bits1(gb);
1120 pps->transquant_bypass_enable_flag = get_bits1(gb);
1121 pps->tiles_enabled_flag = get_bits1(gb);
1122 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1124 if (pps->tiles_enabled_flag) {
1125 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1126 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1127 if (pps->num_tile_columns == 0 ||
1128 pps->num_tile_columns >= sps->width) {
1129 av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1130 pps->num_tile_columns - 1);
1131 ret = AVERROR_INVALIDDATA;
1134 if (pps->num_tile_rows == 0 ||
1135 pps->num_tile_rows >= sps->height) {
1136 av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1137 pps->num_tile_rows - 1);
1138 ret = AVERROR_INVALIDDATA;
1142 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1143 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1144 if (!pps->column_width || !pps->row_height) {
1145 ret = AVERROR(ENOMEM);
1149 pps->uniform_spacing_flag = get_bits1(gb);
1150 if (!pps->uniform_spacing_flag) {
1152 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1153 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1154 sum += pps->column_width[i];
1156 if (sum >= sps->ctb_width) {
1157 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1158 ret = AVERROR_INVALIDDATA;
1161 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1164 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1165 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1166 sum += pps->row_height[i];
1168 if (sum >= sps->ctb_height) {
1169 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1170 ret = AVERROR_INVALIDDATA;
1173 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1175 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1178 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1180 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1181 if (pps->deblocking_filter_control_present_flag) {
1182 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1183 pps->disable_dbf = get_bits1(gb);
1184 if (!pps->disable_dbf) {
1185 pps->beta_offset = get_se_golomb(gb) * 2;
1186 pps->tc_offset = get_se_golomb(gb) * 2;
1187 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1188 av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1189 pps->beta_offset/2);
1190 ret = AVERROR_INVALIDDATA;
1193 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1194 av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1196 ret = AVERROR_INVALIDDATA;
1202 pps->scaling_list_data_present_flag = get_bits1(gb);
1203 if (pps->scaling_list_data_present_flag) {
1204 set_default_scaling_list_data(&pps->scaling_list);
1205 ret = scaling_list_data(s, &pps->scaling_list);
1209 pps->lists_modification_present_flag = get_bits1(gb);
1210 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1211 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1212 av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1213 pps->log2_parallel_merge_level - 2);
1214 ret = AVERROR_INVALIDDATA;
1218 pps->slice_header_extension_present_flag = get_bits1(gb);
1219 skip_bits1(gb); // pps_extension_flag
1221 // Inferred parameters
1222 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1223 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1224 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1225 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
1226 ret = AVERROR(ENOMEM);
1230 if (pps->uniform_spacing_flag) {
1231 if (!pps->column_width) {
1232 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1233 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1235 if (!pps->column_width || !pps->row_height) {
1236 ret = AVERROR(ENOMEM);
1240 for (i = 0; i < pps->num_tile_columns; i++) {
1241 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1242 (i * sps->ctb_width) / pps->num_tile_columns;
1245 for (i = 0; i < pps->num_tile_rows; i++) {
1246 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1247 (i * sps->ctb_height) / pps->num_tile_rows;
1252 for (i = 0; i < pps->num_tile_columns; i++)
1253 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1256 for (i = 0; i < pps->num_tile_rows; i++)
1257 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1259 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1260 if (i > pps->col_bd[j])
1262 pps->col_idxX[i] = j;
1268 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1269 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1271 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1272 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1273 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1274 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1275 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1276 !pps->tile_id || !pps->min_tb_addr_zs) {
1277 ret = AVERROR(ENOMEM);
1281 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1282 int tb_x = ctb_addr_rs % sps->ctb_width;
1283 int tb_y = ctb_addr_rs / sps->ctb_width;
1288 for (i = 0; i < pps->num_tile_columns; i++) {
1289 if (tb_x < pps->col_bd[i + 1]) {
1295 for (i = 0; i < pps->num_tile_rows; i++) {
1296 if (tb_y < pps->row_bd[i + 1]) {
1302 for (i = 0; i < tile_x; i++)
1303 val += pps->row_height[tile_y] * pps->column_width[i];
1304 for (i = 0; i < tile_y; i++)
1305 val += sps->ctb_width * pps->row_height[i];
1307 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1308 tb_x - pps->col_bd[tile_x];
1310 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1311 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1314 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1315 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1316 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1317 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1318 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1320 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1321 if (!pps->tile_pos_rs) {
1322 ret = AVERROR(ENOMEM);
1326 for (j = 0; j < pps->num_tile_rows; j++)
1327 for (i = 0; i < pps->num_tile_columns; i++)
1328 pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1330 log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
1331 for (y = 0; y < sps->min_tb_height; y++) {
1332 for (x = 0; x < sps->min_tb_width; x++) {
1333 int tb_x = x >> log2_diff_ctb_min_tb_size;
1334 int tb_y = y >> log2_diff_ctb_min_tb_size;
1335 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1336 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1337 (log2_diff_ctb_min_tb_size * 2);
1338 for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
1340 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1342 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1346 remove_pps(s, pps_id);
1347 s->pps_list[pps_id] = pps_buf;
1352 av_buffer_unref(&pps_buf);