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;
91 unsigned abs_delta_rps;
92 uint8_t use_delta_flag = 0;
93 uint8_t delta_rps_sign;
95 if (is_slice_header) {
96 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
97 if (delta_idx > sps->nb_st_rps) {
98 av_log(s->avctx, AV_LOG_ERROR,
99 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
100 delta_idx, sps->nb_st_rps);
101 return AVERROR_INVALIDDATA;
103 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
105 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
107 delta_rps_sign = get_bits1(gb);
108 abs_delta_rps = get_ue_golomb_long(gb) + 1;
109 if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
110 av_log(s->avctx, AV_LOG_ERROR,
111 "Invalid value of abs_delta_rps: %d\n",
113 return AVERROR_INVALIDDATA;
115 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
116 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
117 int used = rps->used[k] = get_bits1(gb);
120 use_delta_flag = get_bits1(gb);
122 if (used || use_delta_flag) {
123 if (i < rps_ridx->num_delta_pocs)
124 delta_poc = delta_rps + rps_ridx->delta_poc[i];
126 delta_poc = delta_rps;
127 rps->delta_poc[k] = delta_poc;
136 rps->num_delta_pocs = k;
137 rps->num_negative_pics = k0;
138 // sort in increasing order (smallest first)
139 if (rps->num_delta_pocs != 0) {
141 for (i = 1; i < rps->num_delta_pocs; i++) {
142 delta_poc = rps->delta_poc[i];
144 for (k = i - 1; k >= 0; k--) {
145 tmp = rps->delta_poc[k];
146 if (delta_poc < tmp) {
147 rps->delta_poc[k + 1] = tmp;
148 rps->used[k + 1] = rps->used[k];
149 rps->delta_poc[k] = delta_poc;
155 if ((rps->num_negative_pics >> 1) != 0) {
157 k = rps->num_negative_pics - 1;
158 // flip the negative values to largest first
159 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
160 delta_poc = rps->delta_poc[i];
162 rps->delta_poc[i] = rps->delta_poc[k];
163 rps->used[i] = rps->used[k];
164 rps->delta_poc[k] = delta_poc;
170 unsigned int prev, nb_positive_pics;
171 rps->num_negative_pics = get_ue_golomb_long(gb);
172 nb_positive_pics = get_ue_golomb_long(gb);
174 if (rps->num_negative_pics >= MAX_REFS ||
175 nb_positive_pics >= MAX_REFS) {
176 av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
177 return AVERROR_INVALIDDATA;
180 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
181 if (rps->num_delta_pocs) {
183 for (i = 0; i < rps->num_negative_pics; i++) {
184 delta_poc = get_ue_golomb_long(gb) + 1;
186 rps->delta_poc[i] = prev;
187 rps->used[i] = get_bits1(gb);
190 for (i = 0; i < nb_positive_pics; i++) {
191 delta_poc = get_ue_golomb_long(gb) + 1;
193 rps->delta_poc[rps->num_negative_pics + i] = prev;
194 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
202 static void decode_profile_tier_level(HEVCContext *s, PTLCommon *ptl)
205 HEVCLocalContext *lc = s->HEVClc;
206 GetBitContext *gb = &lc->gb;
208 ptl->profile_space = get_bits(gb, 2);
209 ptl->tier_flag = get_bits1(gb);
210 ptl->profile_idc = get_bits(gb, 5);
211 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
212 av_log(s->avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
213 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
214 av_log(s->avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
215 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
216 av_log(s->avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
217 else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
218 av_log(s->avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n");
220 av_log(s->avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
222 for (i = 0; i < 32; i++)
223 ptl->profile_compatibility_flag[i] = get_bits1(gb);
224 ptl->progressive_source_flag = get_bits1(gb);
225 ptl->interlaced_source_flag = get_bits1(gb);
226 ptl->non_packed_constraint_flag = get_bits1(gb);
227 ptl->frame_only_constraint_flag = get_bits1(gb);
229 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
230 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
231 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
234 static void parse_ptl(HEVCContext *s, PTL *ptl, int max_num_sub_layers)
237 HEVCLocalContext *lc = s->HEVClc;
238 GetBitContext *gb = &lc->gb;
239 decode_profile_tier_level(s, &ptl->general_ptl);
240 ptl->general_ptl.level_idc = get_bits(gb, 8);
242 for (i = 0; i < max_num_sub_layers - 1; i++) {
243 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
244 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
246 if (max_num_sub_layers - 1> 0)
247 for (i = max_num_sub_layers - 1; i < 8; i++)
248 skip_bits(gb, 2); // reserved_zero_2bits[i]
249 for (i = 0; i < max_num_sub_layers - 1; i++) {
250 if (ptl->sub_layer_profile_present_flag[i])
251 decode_profile_tier_level(s, &ptl->sub_layer_ptl[i]);
252 if (ptl->sub_layer_level_present_flag[i])
253 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
257 static void decode_sublayer_hrd(HEVCContext *s, unsigned int nb_cpb,
258 int subpic_params_present)
260 GetBitContext *gb = &s->HEVClc->gb;
263 for (i = 0; i < nb_cpb; i++) {
264 get_ue_golomb_long(gb); // bit_rate_value_minus1
265 get_ue_golomb_long(gb); // cpb_size_value_minus1
267 if (subpic_params_present) {
268 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
269 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
271 skip_bits1(gb); // cbr_flag
275 static int decode_hrd(HEVCContext *s, int common_inf_present,
278 GetBitContext *gb = &s->HEVClc->gb;
279 int nal_params_present = 0, vcl_params_present = 0;
280 int subpic_params_present = 0;
283 if (common_inf_present) {
284 nal_params_present = get_bits1(gb);
285 vcl_params_present = get_bits1(gb);
287 if (nal_params_present || vcl_params_present) {
288 subpic_params_present = get_bits1(gb);
290 if (subpic_params_present) {
291 skip_bits(gb, 8); // tick_divisor_minus2
292 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
293 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
294 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
297 skip_bits(gb, 4); // bit_rate_scale
298 skip_bits(gb, 4); // cpb_size_scale
300 if (subpic_params_present)
301 skip_bits(gb, 4); // cpb_size_du_scale
303 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
304 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
305 skip_bits(gb, 5); // dpb_output_delay_length_minus1
309 for (i = 0; i < max_sublayers; i++) {
311 unsigned int nb_cpb = 1;
312 int fixed_rate = get_bits1(gb);
315 fixed_rate = get_bits1(gb);
318 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
320 low_delay = get_bits1(gb);
323 nb_cpb = get_ue_golomb_long(gb) + 1;
324 if (nb_cpb < 1 || nb_cpb > 32) {
325 av_log(s->avctx, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb);
326 return AVERROR_INVALIDDATA;
330 if (nal_params_present)
331 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
332 if (vcl_params_present)
333 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
338 int ff_hevc_decode_nal_vps(HEVCContext *s)
341 GetBitContext *gb = &s->HEVClc->gb;
344 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
347 return AVERROR(ENOMEM);
348 vps = (HEVCVPS*)vps_buf->data;
350 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
352 vps_id = get_bits(gb, 4);
353 if (vps_id >= MAX_VPS_COUNT) {
354 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
358 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
359 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
363 vps->vps_max_layers = get_bits(gb, 6) + 1;
364 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
365 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
367 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
368 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
372 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
373 av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
374 vps->vps_max_sub_layers);
378 parse_ptl(s, &vps->ptl, vps->vps_max_sub_layers);
380 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
382 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
383 for (; i < vps->vps_max_sub_layers; i++) {
384 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
385 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
386 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
388 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
389 av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
390 vps->vps_max_dec_pic_buffering[i] - 1);
393 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
394 av_log(s->avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
395 vps->vps_num_reorder_pics[i]);
396 if (s->avctx->err_recognition & AV_EF_EXPLODE)
401 vps->vps_max_layer_id = get_bits(gb, 6);
402 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
403 if ((vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
404 av_log(s->avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
408 for (i = 1; i < vps->vps_num_layer_sets; i++)
409 for (j = 0; j <= vps->vps_max_layer_id; j++)
410 skip_bits(gb, 1); // layer_id_included_flag[i][j]
412 vps->vps_timing_info_present_flag = get_bits1(gb);
413 if (vps->vps_timing_info_present_flag) {
414 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
415 vps->vps_time_scale = get_bits_long(gb, 32);
416 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
417 if (vps->vps_poc_proportional_to_timing_flag)
418 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
419 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
420 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
421 int common_inf_present = 1;
423 get_ue_golomb_long(gb); // hrd_layer_set_idx
425 common_inf_present = get_bits1(gb);
426 decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
429 get_bits1(gb); /* vps_extension_flag */
431 av_buffer_unref(&s->vps_list[vps_id]);
432 s->vps_list[vps_id] = vps_buf;
436 av_buffer_unref(&vps_buf);
437 return AVERROR_INVALIDDATA;
440 static void decode_vui(HEVCContext *s, HEVCSPS *sps)
442 VUI *vui = &sps->vui;
443 GetBitContext *gb = &s->HEVClc->gb;
446 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
448 sar_present = get_bits1(gb);
450 uint8_t sar_idx = get_bits(gb, 8);
451 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
452 vui->sar = vui_sar[sar_idx];
453 else if (sar_idx == 255) {
454 vui->sar.num = get_bits(gb, 16);
455 vui->sar.den = get_bits(gb, 16);
457 av_log(s->avctx, AV_LOG_WARNING,
458 "Unknown SAR index: %u.\n", sar_idx);
461 vui->overscan_info_present_flag = get_bits1(gb);
462 if (vui->overscan_info_present_flag)
463 vui->overscan_appropriate_flag = get_bits1(gb);
465 vui->video_signal_type_present_flag = get_bits1(gb);
466 if (vui->video_signal_type_present_flag) {
467 vui->video_format = get_bits(gb, 3);
468 vui->video_full_range_flag = get_bits1(gb);
469 vui->colour_description_present_flag = get_bits1(gb);
470 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
471 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
472 if (vui->colour_description_present_flag) {
473 vui->colour_primaries = get_bits(gb, 8);
474 vui->transfer_characteristic = get_bits(gb, 8);
475 vui->matrix_coeffs = get_bits(gb, 8);
477 // Set invalid values to "unspecified"
478 if (vui->colour_primaries >= AVCOL_PRI_NB)
479 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
480 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
481 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
482 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
483 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
487 vui->chroma_loc_info_present_flag = get_bits1(gb);
488 if (vui->chroma_loc_info_present_flag) {
489 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
490 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
493 vui->neutra_chroma_indication_flag = get_bits1(gb);
494 vui->field_seq_flag = get_bits1(gb);
495 vui->frame_field_info_present_flag = get_bits1(gb);
497 vui->default_display_window_flag = get_bits1(gb);
498 if (vui->default_display_window_flag) {
499 //TODO: * 2 is only valid for 420
500 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
501 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
502 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
503 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
505 if (s->apply_defdispwin &&
506 s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
507 av_log(s->avctx, AV_LOG_DEBUG,
508 "discarding vui default display window, "
509 "original values are l:%u r:%u t:%u b:%u\n",
510 vui->def_disp_win.left_offset,
511 vui->def_disp_win.right_offset,
512 vui->def_disp_win.top_offset,
513 vui->def_disp_win.bottom_offset);
515 vui->def_disp_win.left_offset =
516 vui->def_disp_win.right_offset =
517 vui->def_disp_win.top_offset =
518 vui->def_disp_win.bottom_offset = 0;
522 vui->vui_timing_info_present_flag = get_bits1(gb);
524 if (vui->vui_timing_info_present_flag) {
525 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
526 vui->vui_time_scale = get_bits_long(gb, 32);
527 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
528 if (vui->vui_poc_proportional_to_timing_flag)
529 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
530 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
531 if (vui->vui_hrd_parameters_present_flag)
532 decode_hrd(s, 1, sps->max_sub_layers);
535 vui->bitstream_restriction_flag = get_bits1(gb);
536 if (vui->bitstream_restriction_flag) {
537 vui->tiles_fixed_structure_flag = get_bits1(gb);
538 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
539 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
540 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
541 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
542 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
543 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
544 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
548 static void set_default_scaling_list_data(ScalingList *sl)
552 for (matrixId = 0; matrixId < 6; matrixId++) {
554 memset(sl->sl[0][matrixId], 16, 16);
555 sl->sl_dc[0][matrixId] = 16; // default for 16x16
556 sl->sl_dc[1][matrixId] = 16; // default for 32x32
558 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
559 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
560 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
561 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
562 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
563 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
564 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
565 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
566 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
567 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
568 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
569 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
570 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
571 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
572 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
573 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
574 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
575 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
578 static int scaling_list_data(HEVCContext *s, ScalingList *sl, HEVCSPS *sps)
580 GetBitContext *gb = &s->HEVClc->gb;
581 uint8_t scaling_list_pred_mode_flag;
582 int32_t scaling_list_dc_coef[2][6];
583 int size_id, matrix_id, pos;
586 for (size_id = 0; size_id < 4; size_id++)
587 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
588 scaling_list_pred_mode_flag = get_bits1(gb);
589 if (!scaling_list_pred_mode_flag) {
590 unsigned int delta = get_ue_golomb_long(gb);
591 /* Only need to handle non-zero delta. Zero means default,
592 * which should already be in the arrays. */
594 // Copy from previous array.
595 if (matrix_id < delta) {
596 av_log(s->avctx, AV_LOG_ERROR,
597 "Invalid delta in scaling list data: %d.\n", delta);
598 return AVERROR_INVALIDDATA;
601 memcpy(sl->sl[size_id][matrix_id],
602 sl->sl[size_id][matrix_id - delta],
603 size_id > 0 ? 64 : 16);
605 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
608 int next_coef, coef_num;
609 int32_t scaling_list_delta_coef;
612 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
614 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
615 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
616 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
618 for (i = 0; i < coef_num; i++) {
620 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
621 ff_hevc_diag_scan4x4_x[i];
623 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
624 ff_hevc_diag_scan8x8_x[i];
626 scaling_list_delta_coef = get_se_golomb(gb);
627 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
628 sl->sl[size_id][matrix_id][pos] = next_coef;
633 if (sps->chroma_format_idc == 3) {
634 for (i = 0; i < 64; i++) {
635 sl->sl[3][1][i] = sl->sl[2][1][i];
636 sl->sl[3][2][i] = sl->sl[2][2][i];
637 sl->sl[3][4][i] = sl->sl[2][4][i];
638 sl->sl[3][5][i] = sl->sl[2][5][i];
640 sl->sl_dc[1][1] = sl->sl_dc[0][1];
641 sl->sl_dc[1][2] = sl->sl_dc[0][2];
642 sl->sl_dc[1][4] = sl->sl_dc[0][4];
643 sl->sl_dc[1][5] = sl->sl_dc[0][5];
650 int ff_hevc_decode_nal_sps(HEVCContext *s)
652 const AVPixFmtDescriptor *desc;
653 GetBitContext *gb = &s->HEVClc->gb;
655 unsigned int sps_id = 0;
656 int log2_diff_max_min_transform_block_size;
657 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
661 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
664 return AVERROR(ENOMEM);
665 sps = (HEVCSPS*)sps_buf->data;
667 av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
671 sps->vps_id = get_bits(gb, 4);
672 if (sps->vps_id >= MAX_VPS_COUNT) {
673 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
674 ret = AVERROR_INVALIDDATA;
678 if (!s->vps_list[sps->vps_id]) {
679 av_log(s->avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
681 ret = AVERROR_INVALIDDATA;
685 sps->max_sub_layers = get_bits(gb, 3) + 1;
686 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
687 av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
688 sps->max_sub_layers);
689 ret = AVERROR_INVALIDDATA;
693 skip_bits1(gb); // temporal_id_nesting_flag
695 parse_ptl(s, &sps->ptl, sps->max_sub_layers);
697 sps_id = get_ue_golomb_long(gb);
698 if (sps_id >= MAX_SPS_COUNT) {
699 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
700 ret = AVERROR_INVALIDDATA;
704 sps->chroma_format_idc = get_ue_golomb_long(gb);
705 if (!(sps->chroma_format_idc == 1 || sps->chroma_format_idc == 2 || sps->chroma_format_idc == 3)) {
706 avpriv_report_missing_feature(s->avctx, "chroma_format_idc != {1, 2, 3}\n");
707 ret = AVERROR_PATCHWELCOME;
711 if (sps->chroma_format_idc == 3)
712 sps->separate_colour_plane_flag = get_bits1(gb);
714 if (sps->separate_colour_plane_flag)
715 sps->chroma_format_idc = 0;
717 sps->width = get_ue_golomb_long(gb);
718 sps->height = get_ue_golomb_long(gb);
719 if ((ret = av_image_check_size(sps->width,
720 sps->height, 0, s->avctx)) < 0)
723 if (get_bits1(gb)) { // pic_conformance_flag
724 //TODO: * 2 is only valid for 420
725 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
726 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
727 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
728 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
730 if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
731 av_log(s->avctx, AV_LOG_DEBUG,
732 "discarding sps conformance window, "
733 "original values are l:%u r:%u t:%u b:%u\n",
734 sps->pic_conf_win.left_offset,
735 sps->pic_conf_win.right_offset,
736 sps->pic_conf_win.top_offset,
737 sps->pic_conf_win.bottom_offset);
739 sps->pic_conf_win.left_offset =
740 sps->pic_conf_win.right_offset =
741 sps->pic_conf_win.top_offset =
742 sps->pic_conf_win.bottom_offset = 0;
744 sps->output_window = sps->pic_conf_win;
747 sps->bit_depth = get_ue_golomb_long(gb) + 8;
748 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
749 if (bit_depth_chroma != sps->bit_depth) {
750 av_log(s->avctx, AV_LOG_ERROR,
751 "Luma bit depth (%d) is different from chroma bit depth (%d), "
752 "this is unsupported.\n",
753 sps->bit_depth, bit_depth_chroma);
754 ret = AVERROR_INVALIDDATA;
758 switch (sps->bit_depth) {
760 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
761 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
762 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
765 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
766 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
767 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
770 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
771 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
772 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
775 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
776 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
777 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
780 av_log(s->avctx, AV_LOG_ERROR,
781 "4:2:0, 4:2:2, 4:4:4 supports are currently specified for 8, 10 and 12 bits.\n");
782 return AVERROR_PATCHWELCOME;
785 desc = av_pix_fmt_desc_get(sps->pix_fmt);
787 ret = AVERROR(EINVAL);
791 sps->hshift[0] = sps->vshift[0] = 0;
792 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
793 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
795 sps->pixel_shift = sps->bit_depth > 8;
797 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
798 if (sps->log2_max_poc_lsb > 16) {
799 av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
800 sps->log2_max_poc_lsb - 4);
801 ret = AVERROR_INVALIDDATA;
805 sublayer_ordering_info = get_bits1(gb);
806 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
807 for (i = start; i < sps->max_sub_layers; i++) {
808 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
809 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
810 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
811 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
812 av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
813 sps->temporal_layer[i].max_dec_pic_buffering - 1);
814 ret = AVERROR_INVALIDDATA;
817 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
818 av_log(s->avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
819 sps->temporal_layer[i].num_reorder_pics);
820 if (s->avctx->err_recognition & AV_EF_EXPLODE ||
821 sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
822 ret = AVERROR_INVALIDDATA;
825 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
829 if (!sublayer_ordering_info) {
830 for (i = 0; i < start; i++) {
831 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
832 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
833 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
837 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
838 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
839 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
840 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
841 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
842 sps->log2_min_tb_size;
844 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
845 av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
846 ret = AVERROR_INVALIDDATA;
849 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
850 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
852 sps->scaling_list_enable_flag = get_bits1(gb);
853 if (sps->scaling_list_enable_flag) {
854 set_default_scaling_list_data(&sps->scaling_list);
857 ret = scaling_list_data(s, &sps->scaling_list, sps);
863 sps->amp_enabled_flag = get_bits1(gb);
864 sps->sao_enabled = get_bits1(gb);
866 sps->pcm_enabled_flag = get_bits1(gb);
867 if (sps->pcm_enabled_flag) {
868 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
869 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
870 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
871 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
872 get_ue_golomb_long(gb);
873 if (sps->pcm.bit_depth > sps->bit_depth) {
874 av_log(s->avctx, AV_LOG_ERROR,
875 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
876 sps->pcm.bit_depth, sps->bit_depth);
877 ret = AVERROR_INVALIDDATA;
881 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
884 sps->nb_st_rps = get_ue_golomb_long(gb);
885 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
886 av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
888 ret = AVERROR_INVALIDDATA;
891 for (i = 0; i < sps->nb_st_rps; i++) {
892 if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
897 sps->long_term_ref_pics_present_flag = get_bits1(gb);
898 if (sps->long_term_ref_pics_present_flag) {
899 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
900 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
901 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
902 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
906 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
907 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
908 sps->vui.sar = (AVRational){0, 1};
909 vui_present = get_bits1(gb);
913 if (get_bits1(gb)) { // sps_extension_flag
914 int sps_extension_flag[1];
915 for (i = 0; i < 1; i++)
916 sps_extension_flag[i] = get_bits1(gb);
917 skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
918 if (sps_extension_flag[0]) {
919 int extended_precision_processing_flag;
920 int high_precision_offsets_enabled_flag;
921 int cabac_bypass_alignment_enabled_flag;
923 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
924 sps->transform_skip_context_enabled_flag = get_bits1(gb);
925 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
927 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
929 extended_precision_processing_flag = get_bits1(gb);
930 if (extended_precision_processing_flag)
931 av_log(s->avctx, AV_LOG_WARNING,
932 "extended_precision_processing_flag not yet implemented\n");
934 sps->intra_smoothing_disabled_flag = get_bits1(gb);
935 high_precision_offsets_enabled_flag = get_bits1(gb);
936 if (high_precision_offsets_enabled_flag)
937 av_log(s->avctx, AV_LOG_WARNING,
938 "high_precision_offsets_enabled_flag not yet implemented\n");
940 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
942 cabac_bypass_alignment_enabled_flag = get_bits1(gb);
943 if (cabac_bypass_alignment_enabled_flag)
944 av_log(s->avctx, AV_LOG_WARNING,
945 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
948 if (s->apply_defdispwin) {
949 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
950 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
951 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
952 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
954 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
955 !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
956 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
957 av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
958 "chroma samples to preserve alignment.\n",
959 sps->output_window.left_offset);
961 sps->output_width = sps->width -
962 (sps->output_window.left_offset + sps->output_window.right_offset);
963 sps->output_height = sps->height -
964 (sps->output_window.top_offset + sps->output_window.bottom_offset);
965 if (sps->output_width <= 0 || sps->output_height <= 0) {
966 av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
967 sps->output_width, sps->output_height);
968 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
969 ret = AVERROR_INVALIDDATA;
972 av_log(s->avctx, AV_LOG_WARNING,
973 "Displaying the whole video surface.\n");
974 sps->pic_conf_win.left_offset =
975 sps->pic_conf_win.right_offset =
976 sps->pic_conf_win.top_offset =
977 sps->pic_conf_win.bottom_offset = 0;
978 sps->output_width = sps->width;
979 sps->output_height = sps->height;
982 // Inferred parameters
983 sps->log2_ctb_size = sps->log2_min_cb_size +
984 sps->log2_diff_max_min_coding_block_size;
985 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
987 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
988 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
989 sps->ctb_size = sps->ctb_width * sps->ctb_height;
991 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
992 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
993 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
994 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
995 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
996 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
997 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
999 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1001 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
1002 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
1003 av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1007 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
1008 av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1011 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1012 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1013 sps->max_transform_hierarchy_depth_inter);
1016 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1017 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1018 sps->max_transform_hierarchy_depth_intra);
1021 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1022 av_log(s->avctx, AV_LOG_ERROR,
1023 "max transform block size out of range: %d\n",
1024 sps->log2_max_trafo_size);
1028 if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
1029 av_log(s->avctx, AV_LOG_DEBUG,
1030 "Parsed SPS: id %d; coded wxh: %dx%d; "
1031 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1032 sps_id, sps->width, sps->height,
1033 sps->output_width, sps->output_height,
1034 av_get_pix_fmt_name(sps->pix_fmt));
1037 /* check if this is a repeat of an already parsed SPS, then keep the
1039 * otherwise drop all PPSes that depend on it */
1040 if (s->sps_list[sps_id] &&
1041 !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1042 av_buffer_unref(&sps_buf);
1044 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
1045 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
1046 av_buffer_unref(&s->pps_list[i]);
1048 if (s->sps_list[sps_id] && s->sps == (HEVCSPS*)s->sps_list[sps_id]->data) {
1049 av_buffer_unref(&s->current_sps);
1050 s->current_sps = av_buffer_ref(s->sps_list[sps_id]);
1051 if (!s->current_sps)
1054 av_buffer_unref(&s->sps_list[sps_id]);
1055 s->sps_list[sps_id] = sps_buf;
1061 av_buffer_unref(&sps_buf);
1065 static void hevc_pps_free(void *opaque, uint8_t *data)
1067 HEVCPPS *pps = (HEVCPPS*)data;
1069 av_freep(&pps->column_width);
1070 av_freep(&pps->row_height);
1071 av_freep(&pps->col_bd);
1072 av_freep(&pps->row_bd);
1073 av_freep(&pps->col_idxX);
1074 av_freep(&pps->ctb_addr_rs_to_ts);
1075 av_freep(&pps->ctb_addr_ts_to_rs);
1076 av_freep(&pps->tile_pos_rs);
1077 av_freep(&pps->tile_id);
1078 av_freep(&pps->min_tb_addr_zs_tab);
1083 static int pps_range_extensions(HEVCContext *s, HEVCPPS *pps, HEVCSPS *sps) {
1084 GetBitContext *gb = &s->HEVClc->gb;
1087 if (pps->transform_skip_enabled_flag) {
1088 pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
1090 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1091 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1092 if (pps->chroma_qp_offset_list_enabled_flag) {
1093 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb);
1094 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb);
1095 if (pps->chroma_qp_offset_list_len_minus1 && pps->chroma_qp_offset_list_len_minus1 >= 5) {
1096 av_log(s->avctx, AV_LOG_ERROR,
1097 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1098 return AVERROR_INVALIDDATA;
1100 for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1101 pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
1102 if (pps->cb_qp_offset_list[i]) {
1103 av_log(s->avctx, AV_LOG_WARNING,
1104 "cb_qp_offset_list not tested yet.\n");
1106 pps->cr_qp_offset_list[i] = get_se_golomb_long(gb);
1107 if (pps->cr_qp_offset_list[i]) {
1108 av_log(s->avctx, AV_LOG_WARNING,
1109 "cb_qp_offset_list not tested yet.\n");
1113 pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb);
1114 pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb);
1119 int ff_hevc_decode_nal_pps(HEVCContext *s)
1121 GetBitContext *gb = &s->HEVClc->gb;
1122 HEVCSPS *sps = NULL;
1123 int pic_area_in_ctbs;
1124 int log2_diff_ctb_min_tb_size;
1125 int i, j, x, y, ctb_addr_rs, tile_id;
1127 unsigned int pps_id = 0;
1129 AVBufferRef *pps_buf;
1130 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1133 return AVERROR(ENOMEM);
1135 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1136 hevc_pps_free, NULL, 0);
1139 return AVERROR(ENOMEM);
1142 av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1145 pps->loop_filter_across_tiles_enabled_flag = 1;
1146 pps->num_tile_columns = 1;
1147 pps->num_tile_rows = 1;
1148 pps->uniform_spacing_flag = 1;
1149 pps->disable_dbf = 0;
1150 pps->beta_offset = 0;
1152 pps->log2_max_transform_skip_block_size = 2;
1155 pps_id = get_ue_golomb_long(gb);
1156 if (pps_id >= MAX_PPS_COUNT) {
1157 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1158 ret = AVERROR_INVALIDDATA;
1161 pps->sps_id = get_ue_golomb_long(gb);
1162 if (pps->sps_id >= MAX_SPS_COUNT) {
1163 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1164 ret = AVERROR_INVALIDDATA;
1167 if (!s->sps_list[pps->sps_id]) {
1168 av_log(s->avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1169 ret = AVERROR_INVALIDDATA;
1172 sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
1174 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1175 pps->output_flag_present_flag = get_bits1(gb);
1176 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1178 pps->sign_data_hiding_flag = get_bits1(gb);
1180 pps->cabac_init_present_flag = get_bits1(gb);
1182 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1183 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1185 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1187 pps->constrained_intra_pred_flag = get_bits1(gb);
1188 pps->transform_skip_enabled_flag = get_bits1(gb);
1190 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1191 pps->diff_cu_qp_delta_depth = 0;
1192 if (pps->cu_qp_delta_enabled_flag)
1193 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1195 pps->cb_qp_offset = get_se_golomb(gb);
1196 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1197 av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1199 ret = AVERROR_INVALIDDATA;
1202 pps->cr_qp_offset = get_se_golomb(gb);
1203 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1204 av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1206 ret = AVERROR_INVALIDDATA;
1209 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1211 pps->weighted_pred_flag = get_bits1(gb);
1212 pps->weighted_bipred_flag = get_bits1(gb);
1214 pps->transquant_bypass_enable_flag = get_bits1(gb);
1215 pps->tiles_enabled_flag = get_bits1(gb);
1216 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1218 if (pps->tiles_enabled_flag) {
1219 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1220 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1221 if (pps->num_tile_columns == 0 ||
1222 pps->num_tile_columns >= sps->width) {
1223 av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1224 pps->num_tile_columns - 1);
1225 ret = AVERROR_INVALIDDATA;
1228 if (pps->num_tile_rows == 0 ||
1229 pps->num_tile_rows >= sps->height) {
1230 av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1231 pps->num_tile_rows - 1);
1232 ret = AVERROR_INVALIDDATA;
1236 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1237 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1238 if (!pps->column_width || !pps->row_height) {
1239 ret = AVERROR(ENOMEM);
1243 pps->uniform_spacing_flag = get_bits1(gb);
1244 if (!pps->uniform_spacing_flag) {
1246 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1247 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1248 sum += pps->column_width[i];
1250 if (sum >= sps->ctb_width) {
1251 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1252 ret = AVERROR_INVALIDDATA;
1255 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1258 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1259 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1260 sum += pps->row_height[i];
1262 if (sum >= sps->ctb_height) {
1263 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1264 ret = AVERROR_INVALIDDATA;
1267 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1269 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1272 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1274 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1275 if (pps->deblocking_filter_control_present_flag) {
1276 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1277 pps->disable_dbf = get_bits1(gb);
1278 if (!pps->disable_dbf) {
1279 pps->beta_offset = get_se_golomb(gb) * 2;
1280 pps->tc_offset = get_se_golomb(gb) * 2;
1281 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1282 av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1283 pps->beta_offset/2);
1284 ret = AVERROR_INVALIDDATA;
1287 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1288 av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1290 ret = AVERROR_INVALIDDATA;
1296 pps->scaling_list_data_present_flag = get_bits1(gb);
1297 if (pps->scaling_list_data_present_flag) {
1298 set_default_scaling_list_data(&pps->scaling_list);
1299 ret = scaling_list_data(s, &pps->scaling_list, sps);
1303 pps->lists_modification_present_flag = get_bits1(gb);
1304 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1305 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1306 av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1307 pps->log2_parallel_merge_level - 2);
1308 ret = AVERROR_INVALIDDATA;
1312 pps->slice_header_extension_present_flag = get_bits1(gb);
1314 if (get_bits1(gb)) { // pps_extension_present_flag
1315 int pps_range_extensions_flag = get_bits1(gb);
1316 /* int pps_extension_7bits = */ get_bits(gb, 7);
1317 if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {
1318 pps_range_extensions(s, pps, sps);
1322 // Inferred parameters
1323 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1324 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1325 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1326 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
1327 ret = AVERROR(ENOMEM);
1331 if (pps->uniform_spacing_flag) {
1332 if (!pps->column_width) {
1333 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1334 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1336 if (!pps->column_width || !pps->row_height) {
1337 ret = AVERROR(ENOMEM);
1341 for (i = 0; i < pps->num_tile_columns; i++) {
1342 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1343 (i * sps->ctb_width) / pps->num_tile_columns;
1346 for (i = 0; i < pps->num_tile_rows; i++) {
1347 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1348 (i * sps->ctb_height) / pps->num_tile_rows;
1353 for (i = 0; i < pps->num_tile_columns; i++)
1354 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1357 for (i = 0; i < pps->num_tile_rows; i++)
1358 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1360 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1361 if (i > pps->col_bd[j])
1363 pps->col_idxX[i] = j;
1369 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1371 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1372 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1373 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1374 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1375 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1376 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1377 ret = AVERROR(ENOMEM);
1381 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1382 int tb_x = ctb_addr_rs % sps->ctb_width;
1383 int tb_y = ctb_addr_rs / sps->ctb_width;
1388 for (i = 0; i < pps->num_tile_columns; i++) {
1389 if (tb_x < pps->col_bd[i + 1]) {
1395 for (i = 0; i < pps->num_tile_rows; i++) {
1396 if (tb_y < pps->row_bd[i + 1]) {
1402 for (i = 0; i < tile_x; i++)
1403 val += pps->row_height[tile_y] * pps->column_width[i];
1404 for (i = 0; i < tile_y; i++)
1405 val += sps->ctb_width * pps->row_height[i];
1407 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1408 tb_x - pps->col_bd[tile_x];
1410 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1411 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1414 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1415 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1416 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1417 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1418 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1420 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1421 if (!pps->tile_pos_rs) {
1422 ret = AVERROR(ENOMEM);
1426 for (j = 0; j < pps->num_tile_rows; j++)
1427 for (i = 0; i < pps->num_tile_columns; i++)
1428 pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1430 log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
1431 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1432 for (y = 0; y < sps->tb_mask+2; y++) {
1433 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1434 pps->min_tb_addr_zs_tab[y] = -1;
1436 for (y = 0; y < sps->tb_mask+1; y++) {
1437 for (x = 0; x < sps->tb_mask+1; x++) {
1438 int tb_x = x >> log2_diff_ctb_min_tb_size;
1439 int tb_y = y >> log2_diff_ctb_min_tb_size;
1440 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1441 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1442 (log2_diff_ctb_min_tb_size * 2);
1443 for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
1445 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1447 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1451 av_buffer_unref(&s->pps_list[pps_id]);
1452 s->pps_list[pps_id] = pps_buf;
1457 av_buffer_unref(&pps_buf);