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"
29 #include "hevc_data.h"
32 static const uint8_t default_scaling_list_intra[] = {
33 16, 16, 16, 16, 17, 18, 21, 24,
34 16, 16, 16, 16, 17, 19, 22, 25,
35 16, 16, 17, 18, 20, 22, 25, 29,
36 16, 16, 18, 21, 24, 27, 31, 36,
37 17, 17, 20, 24, 30, 35, 41, 47,
38 18, 19, 22, 27, 35, 44, 54, 65,
39 21, 22, 25, 31, 41, 54, 70, 88,
40 24, 25, 29, 36, 47, 65, 88, 115
43 static const uint8_t default_scaling_list_inter[] = {
44 16, 16, 16, 16, 17, 18, 20, 24,
45 16, 16, 16, 17, 18, 20, 24, 25,
46 16, 16, 17, 18, 20, 24, 25, 28,
47 16, 17, 18, 20, 24, 25, 28, 33,
48 17, 18, 20, 24, 25, 28, 33, 41,
49 18, 20, 24, 25, 28, 33, 41, 54,
50 20, 24, 25, 28, 33, 41, 54, 71,
51 24, 25, 28, 33, 41, 54, 71, 91
54 static const AVRational vui_sar[] = {
74 static void remove_pps(HEVCParamSets *s, int id)
76 if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
78 av_buffer_unref(&s->pps_list[id]);
81 static void remove_sps(HEVCParamSets *s, int id)
84 if (s->sps_list[id]) {
85 if (s->sps == (const HEVCSPS*)s->sps_list[id]->data)
88 /* drop all PPS that depend on this SPS */
89 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
90 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id)
93 av_buffer_unref(&s->sps_list[id]);
96 static void remove_vps(HEVCParamSets *s, int id)
99 if (s->vps_list[id]) {
100 if (s->vps == (const HEVCVPS*)s->vps_list[id]->data)
103 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
104 if (s->sps_list[i] && ((HEVCSPS*)s->sps_list[i]->data)->vps_id == id)
107 av_buffer_unref(&s->vps_list[id]);
110 int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
111 ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
113 uint8_t rps_predict = 0;
120 if (rps != sps->st_rps && sps->nb_st_rps)
121 rps_predict = get_bits1(gb);
124 const ShortTermRPS *rps_ridx;
125 int delta_rps, abs_delta_rps;
126 uint8_t use_delta_flag = 0;
127 uint8_t delta_rps_sign;
129 if (is_slice_header) {
130 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
131 if (delta_idx > sps->nb_st_rps) {
132 av_log(avctx, AV_LOG_ERROR,
133 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
134 delta_idx, sps->nb_st_rps);
135 return AVERROR_INVALIDDATA;
137 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
138 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
140 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
142 delta_rps_sign = get_bits1(gb);
143 abs_delta_rps = get_ue_golomb_long(gb) + 1;
144 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
145 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
146 int used = rps->used[k] = get_bits1(gb);
149 use_delta_flag = get_bits1(gb);
151 if (used || use_delta_flag) {
152 if (i < rps_ridx->num_delta_pocs)
153 delta_poc = delta_rps + rps_ridx->delta_poc[i];
155 delta_poc = delta_rps;
156 rps->delta_poc[k] = delta_poc;
165 rps->num_delta_pocs = k;
166 rps->num_negative_pics = k0;
167 // sort in increasing order (smallest first)
168 if (rps->num_delta_pocs != 0) {
170 for (i = 1; i < rps->num_delta_pocs; i++) {
171 delta_poc = rps->delta_poc[i];
173 for (k = i - 1; k >= 0; k--) {
174 tmp = rps->delta_poc[k];
175 if (delta_poc < tmp) {
176 rps->delta_poc[k + 1] = tmp;
177 rps->used[k + 1] = rps->used[k];
178 rps->delta_poc[k] = delta_poc;
184 if ((rps->num_negative_pics >> 1) != 0) {
186 k = rps->num_negative_pics - 1;
187 // flip the negative values to largest first
188 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
189 delta_poc = rps->delta_poc[i];
191 rps->delta_poc[i] = rps->delta_poc[k];
192 rps->used[i] = rps->used[k];
193 rps->delta_poc[k] = delta_poc;
199 unsigned int prev, nb_positive_pics;
200 rps->num_negative_pics = get_ue_golomb_long(gb);
201 nb_positive_pics = get_ue_golomb_long(gb);
203 if (rps->num_negative_pics >= HEVC_MAX_REFS ||
204 nb_positive_pics >= HEVC_MAX_REFS) {
205 av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
206 return AVERROR_INVALIDDATA;
209 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
210 if (rps->num_delta_pocs) {
212 for (i = 0; i < rps->num_negative_pics; i++) {
213 delta_poc = get_ue_golomb_long(gb) + 1;
215 rps->delta_poc[i] = prev;
216 rps->used[i] = get_bits1(gb);
219 for (i = 0; i < nb_positive_pics; i++) {
220 delta_poc = get_ue_golomb_long(gb) + 1;
222 rps->delta_poc[rps->num_negative_pics + i] = prev;
223 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
231 static void decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
236 ptl->profile_space = get_bits(gb, 2);
237 ptl->tier_flag = get_bits1(gb);
238 ptl->profile_idc = get_bits(gb, 5);
239 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
240 av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
241 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
242 av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
243 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
244 av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
246 av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
248 for (i = 0; i < 32; i++) {
249 ptl->profile_compatibility_flag[i] = get_bits1(gb);
251 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
252 ptl->profile_idc = i;
254 ptl->progressive_source_flag = get_bits1(gb);
255 ptl->interlaced_source_flag = get_bits1(gb);
256 ptl->non_packed_constraint_flag = get_bits1(gb);
257 ptl->frame_only_constraint_flag = get_bits1(gb);
259 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
260 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
261 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
264 static void parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
265 PTL *ptl, int max_num_sub_layers)
268 decode_profile_tier_level(gb, avctx, &ptl->general_ptl);
269 ptl->general_ptl.level_idc = get_bits(gb, 8);
271 for (i = 0; i < max_num_sub_layers - 1; i++) {
272 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
273 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
275 if (max_num_sub_layers - 1 > 0)
276 for (i = max_num_sub_layers - 1; i < 8; i++)
277 skip_bits(gb, 2); // reserved_zero_2bits[i]
278 for (i = 0; i < max_num_sub_layers - 1; i++) {
279 if (ptl->sub_layer_profile_present_flag[i])
280 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]);
281 if (ptl->sub_layer_level_present_flag[i])
282 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
286 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
287 int subpic_params_present)
291 for (i = 0; i < nb_cpb; i++) {
292 get_ue_golomb_long(gb); // bit_rate_value_minus1
293 get_ue_golomb_long(gb); // cpb_size_value_minus1
295 if (subpic_params_present) {
296 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
297 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
299 skip_bits1(gb); // cbr_flag
303 static void decode_hrd(GetBitContext *gb, int common_inf_present,
306 int nal_params_present = 0, vcl_params_present = 0;
307 int subpic_params_present = 0;
310 if (common_inf_present) {
311 nal_params_present = get_bits1(gb);
312 vcl_params_present = get_bits1(gb);
314 if (nal_params_present || vcl_params_present) {
315 subpic_params_present = get_bits1(gb);
317 if (subpic_params_present) {
318 skip_bits(gb, 8); // tick_divisor_minus2
319 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
320 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
321 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
324 skip_bits(gb, 4); // bit_rate_scale
325 skip_bits(gb, 4); // cpb_size_scale
327 if (subpic_params_present)
328 skip_bits(gb, 4); // cpb_size_du_scale
330 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
331 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
332 skip_bits(gb, 5); // dpb_output_delay_length_minus1
336 for (i = 0; i < max_sublayers; i++) {
338 unsigned int nb_cpb = 1;
339 int fixed_rate = get_bits1(gb);
342 fixed_rate = get_bits1(gb);
345 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
347 low_delay = get_bits1(gb);
350 nb_cpb = get_ue_golomb_long(gb) + 1;
352 if (nal_params_present)
353 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
354 if (vcl_params_present)
355 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
359 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
365 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
368 return AVERROR(ENOMEM);
369 vps = (HEVCVPS*)vps_buf->data;
371 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
373 vps_id = get_bits(gb, 4);
374 if (vps_id >= HEVC_MAX_VPS_COUNT) {
375 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
379 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
380 av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
384 vps->vps_max_layers = get_bits(gb, 6) + 1;
385 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
386 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
388 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
389 av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
393 if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) {
394 av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
395 vps->vps_max_sub_layers);
399 parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers);
401 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
403 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
404 for (; i < vps->vps_max_sub_layers; i++) {
405 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
406 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
407 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
409 if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE) {
410 av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
411 vps->vps_max_dec_pic_buffering[i] - 1);
414 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
415 av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
416 vps->vps_num_reorder_pics[i]);
417 if (avctx->err_recognition & AV_EF_EXPLODE)
422 vps->vps_max_layer_id = get_bits(gb, 6);
423 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
424 for (i = 1; i < vps->vps_num_layer_sets; i++)
425 for (j = 0; j <= vps->vps_max_layer_id; j++)
426 skip_bits(gb, 1); // layer_id_included_flag[i][j]
428 vps->vps_timing_info_present_flag = get_bits1(gb);
429 if (vps->vps_timing_info_present_flag) {
430 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
431 vps->vps_time_scale = get_bits_long(gb, 32);
432 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
433 if (vps->vps_poc_proportional_to_timing_flag)
434 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
435 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
436 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
437 int common_inf_present = 1;
439 get_ue_golomb_long(gb); // hrd_layer_set_idx
441 common_inf_present = get_bits1(gb);
442 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
445 get_bits1(gb); /* vps_extension_flag */
447 if (ps->vps_list[vps_id] &&
448 !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
449 av_buffer_unref(&vps_buf);
451 remove_vps(ps, vps_id);
452 ps->vps_list[vps_id] = vps_buf;
458 av_buffer_unref(&vps_buf);
459 return AVERROR_INVALIDDATA;
462 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
463 int apply_defdispwin, HEVCSPS *sps)
465 VUI *vui = &sps->vui;
468 av_log(avctx, AV_LOG_DEBUG, "Decoding VUI\n");
470 sar_present = get_bits1(gb);
472 uint8_t sar_idx = get_bits(gb, 8);
473 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
474 vui->sar = vui_sar[sar_idx];
475 else if (sar_idx == 255) {
476 vui->sar.num = get_bits(gb, 16);
477 vui->sar.den = get_bits(gb, 16);
479 av_log(avctx, AV_LOG_WARNING,
480 "Unknown SAR index: %u.\n", sar_idx);
483 vui->overscan_info_present_flag = get_bits1(gb);
484 if (vui->overscan_info_present_flag)
485 vui->overscan_appropriate_flag = get_bits1(gb);
487 vui->video_signal_type_present_flag = get_bits1(gb);
488 if (vui->video_signal_type_present_flag) {
489 vui->video_format = get_bits(gb, 3);
490 vui->video_full_range_flag = get_bits1(gb);
491 vui->colour_description_present_flag = get_bits1(gb);
492 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
493 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
494 if (vui->colour_description_present_flag) {
495 vui->colour_primaries = get_bits(gb, 8);
496 vui->transfer_characteristic = get_bits(gb, 8);
497 vui->matrix_coeffs = get_bits(gb, 8);
499 // Set invalid values to "unspecified"
500 if (vui->colour_primaries >= AVCOL_PRI_NB)
501 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
502 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
503 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
504 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
505 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
509 vui->chroma_loc_info_present_flag = get_bits1(gb);
510 if (vui->chroma_loc_info_present_flag) {
511 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
512 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
515 vui->neutra_chroma_indication_flag = get_bits1(gb);
516 vui->field_seq_flag = get_bits1(gb);
517 vui->frame_field_info_present_flag = get_bits1(gb);
519 vui->default_display_window_flag = get_bits1(gb);
520 if (vui->default_display_window_flag) {
521 //TODO: * 2 is only valid for 420
522 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
523 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
524 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
525 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
527 if (apply_defdispwin &&
528 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
529 av_log(avctx, AV_LOG_DEBUG,
530 "discarding vui default display window, "
531 "original values are l:%u r:%u t:%u b:%u\n",
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);
537 vui->def_disp_win.left_offset =
538 vui->def_disp_win.right_offset =
539 vui->def_disp_win.top_offset =
540 vui->def_disp_win.bottom_offset = 0;
544 vui->vui_timing_info_present_flag = get_bits1(gb);
545 if (vui->vui_timing_info_present_flag) {
546 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
547 vui->vui_time_scale = get_bits_long(gb, 32);
548 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
549 if (vui->vui_poc_proportional_to_timing_flag)
550 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
551 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
552 if (vui->vui_hrd_parameters_present_flag)
553 decode_hrd(gb, 1, sps->max_sub_layers);
556 vui->bitstream_restriction_flag = get_bits1(gb);
557 if (vui->bitstream_restriction_flag) {
558 vui->tiles_fixed_structure_flag = get_bits1(gb);
559 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
560 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
561 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
562 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
563 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
564 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
565 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
569 static void set_default_scaling_list_data(ScalingList *sl)
573 for (matrixId = 0; matrixId < 6; matrixId++) {
575 memset(sl->sl[0][matrixId], 16, 16);
576 sl->sl_dc[0][matrixId] = 16; // default for 16x16
577 sl->sl_dc[1][matrixId] = 16; // default for 32x32
579 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
580 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
581 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
582 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
583 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
584 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
585 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
586 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
587 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
588 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
589 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
590 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
591 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
592 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
595 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl)
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(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 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
653 const AVPixFmtDescriptor *desc;
654 if (sps->chroma_format_idc == 1) {
655 switch (sps->bit_depth) {
656 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
657 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
658 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
660 avpriv_report_missing_feature(avctx, "Bit depth %d",
662 return AVERROR_PATCHWELCOME;
665 avpriv_report_missing_feature(avctx, "Non-4:2:0 support");
666 return AVERROR_PATCHWELCOME;
669 desc = av_pix_fmt_desc_get(sps->pix_fmt);
671 return AVERROR(EINVAL);
673 sps->hshift[0] = sps->vshift[0] = 0;
674 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
675 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
677 sps->pixel_shift = sps->bit_depth > 8;
682 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
683 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
686 int log2_diff_max_min_transform_block_size;
687 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
692 sps->vps_id = get_bits(gb, 4);
693 if (sps->vps_id >= HEVC_MAX_VPS_COUNT) {
694 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
695 ret = AVERROR_INVALIDDATA;
699 if (vps_list && !vps_list[sps->vps_id]) {
700 av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
702 ret = AVERROR_INVALIDDATA;
706 sps->max_sub_layers = get_bits(gb, 3) + 1;
707 if (sps->max_sub_layers > HEVC_MAX_SUB_LAYERS) {
708 av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
709 sps->max_sub_layers);
710 ret = AVERROR_INVALIDDATA;
714 skip_bits1(gb); // temporal_id_nesting_flag
716 parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers);
718 *sps_id = get_ue_golomb_long(gb);
719 if (*sps_id >= HEVC_MAX_SPS_COUNT) {
720 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
721 ret = AVERROR_INVALIDDATA;
725 sps->chroma_format_idc = get_ue_golomb_long(gb);
726 if (sps->chroma_format_idc != 1) {
727 avpriv_report_missing_feature(avctx, "chroma_format_idc %d",
728 sps->chroma_format_idc);
729 ret = AVERROR_PATCHWELCOME;
733 if (sps->chroma_format_idc == 3)
734 sps->separate_colour_plane_flag = get_bits1(gb);
736 sps->width = get_ue_golomb_long(gb);
737 sps->height = get_ue_golomb_long(gb);
738 if ((ret = av_image_check_size(sps->width,
739 sps->height, 0, avctx)) < 0)
742 if (get_bits1(gb)) { // pic_conformance_flag
743 //TODO: * 2 is only valid for 420
744 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
745 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
746 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
747 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
749 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
750 av_log(avctx, AV_LOG_DEBUG,
751 "discarding sps conformance window, "
752 "original values are l:%u r:%u t:%u b:%u\n",
753 sps->pic_conf_win.left_offset,
754 sps->pic_conf_win.right_offset,
755 sps->pic_conf_win.top_offset,
756 sps->pic_conf_win.bottom_offset);
758 sps->pic_conf_win.left_offset =
759 sps->pic_conf_win.right_offset =
760 sps->pic_conf_win.top_offset =
761 sps->pic_conf_win.bottom_offset = 0;
763 sps->output_window = sps->pic_conf_win;
766 sps->bit_depth = get_ue_golomb_long(gb) + 8;
767 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
768 if (bit_depth_chroma != sps->bit_depth) {
769 av_log(avctx, AV_LOG_ERROR,
770 "Luma bit depth (%d) is different from chroma bit depth (%d), "
771 "this is unsupported.\n",
772 sps->bit_depth, bit_depth_chroma);
773 ret = AVERROR_INVALIDDATA;
778 ret = map_pixel_format(avctx, sps);
782 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
783 if (sps->log2_max_poc_lsb > 16) {
784 av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
785 sps->log2_max_poc_lsb - 4);
786 ret = AVERROR_INVALIDDATA;
790 sublayer_ordering_info = get_bits1(gb);
791 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
792 for (i = start; i < sps->max_sub_layers; i++) {
793 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
794 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
795 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
796 if (sps->temporal_layer[i].max_dec_pic_buffering > HEVC_MAX_DPB_SIZE) {
797 av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
798 sps->temporal_layer[i].max_dec_pic_buffering - 1);
799 ret = AVERROR_INVALIDDATA;
802 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
803 av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
804 sps->temporal_layer[i].num_reorder_pics);
805 if (avctx->err_recognition & AV_EF_EXPLODE ||
806 sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) {
807 ret = AVERROR_INVALIDDATA;
810 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
814 if (!sublayer_ordering_info) {
815 for (i = 0; i < start; i++) {
816 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
817 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
818 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
822 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
823 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
824 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
825 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
826 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
827 sps->log2_min_tb_size;
829 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
830 av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
831 ret = AVERROR_INVALIDDATA;
834 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
835 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
837 sps->scaling_list_enable_flag = get_bits1(gb);
838 if (sps->scaling_list_enable_flag) {
839 set_default_scaling_list_data(&sps->scaling_list);
842 ret = scaling_list_data(gb, avctx, &sps->scaling_list);
848 sps->amp_enabled_flag = get_bits1(gb);
849 sps->sao_enabled = get_bits1(gb);
851 sps->pcm_enabled_flag = get_bits1(gb);
852 if (sps->pcm_enabled_flag) {
853 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
854 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
855 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
856 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
857 get_ue_golomb_long(gb);
858 if (sps->pcm.bit_depth > sps->bit_depth) {
859 av_log(avctx, AV_LOG_ERROR,
860 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
861 sps->pcm.bit_depth, sps->bit_depth);
862 ret = AVERROR_INVALIDDATA;
866 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
869 sps->nb_st_rps = get_ue_golomb_long(gb);
870 if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_RPS_COUNT) {
871 av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
873 ret = AVERROR_INVALIDDATA;
876 for (i = 0; i < sps->nb_st_rps; i++) {
877 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
882 sps->long_term_ref_pics_present_flag = get_bits1(gb);
883 if (sps->long_term_ref_pics_present_flag) {
884 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
885 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
886 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
887 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
891 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
892 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
893 sps->vui.sar = (AVRational){0, 1};
894 vui_present = get_bits1(gb);
896 decode_vui(gb, avctx, apply_defdispwin, sps);
897 skip_bits1(gb); // sps_extension_flag
899 if (apply_defdispwin) {
900 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
901 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
902 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
903 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
905 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
906 !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {
907 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
908 av_log(avctx, AV_LOG_WARNING, "Reducing left output window to %d "
909 "chroma samples to preserve alignment.\n",
910 sps->output_window.left_offset);
912 sps->output_width = sps->width -
913 (sps->output_window.left_offset + sps->output_window.right_offset);
914 sps->output_height = sps->height -
915 (sps->output_window.top_offset + sps->output_window.bottom_offset);
916 if (sps->output_width <= 0 || sps->output_height <= 0) {
917 av_log(avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
918 sps->output_width, sps->output_height);
919 if (avctx->err_recognition & AV_EF_EXPLODE) {
920 ret = AVERROR_INVALIDDATA;
923 av_log(avctx, AV_LOG_WARNING,
924 "Displaying the whole video surface.\n");
925 sps->output_window.left_offset =
926 sps->output_window.right_offset =
927 sps->output_window.top_offset =
928 sps->output_window.bottom_offset = 0;
929 sps->output_width = sps->width;
930 sps->output_height = sps->height;
933 // Inferred parameters
934 sps->log2_ctb_size = sps->log2_min_cb_size +
935 sps->log2_diff_max_min_coding_block_size;
936 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
938 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
939 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
940 sps->ctb_size = sps->ctb_width * sps->ctb_height;
942 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
943 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
944 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
945 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
946 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
947 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
949 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
951 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
952 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
953 av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
957 if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) {
958 av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
961 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
962 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
963 sps->max_transform_hierarchy_depth_inter);
966 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
967 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
968 sps->max_transform_hierarchy_depth_intra);
971 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
972 av_log(avctx, AV_LOG_ERROR,
973 "max transform block size out of range: %d\n",
974 sps->log2_max_trafo_size);
981 return ret < 0 ? ret : AVERROR_INVALIDDATA;
984 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
985 HEVCParamSets *ps, int apply_defdispwin)
988 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
993 return AVERROR(ENOMEM);
994 sps = (HEVCSPS*)sps_buf->data;
996 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
998 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1000 ps->vps_list, avctx);
1002 av_buffer_unref(&sps_buf);
1006 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1007 av_log(avctx, AV_LOG_DEBUG,
1008 "Parsed SPS: id %d; coded wxh: %dx%d; "
1009 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1010 sps_id, sps->width, sps->height,
1011 sps->output_width, sps->output_height,
1012 av_get_pix_fmt_name(sps->pix_fmt));
1015 /* check if this is a repeat of an already parsed SPS, then keep the
1017 * otherwise drop all PPSes that depend on it */
1018 if (ps->sps_list[sps_id] &&
1019 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1020 av_buffer_unref(&sps_buf);
1022 remove_sps(ps, sps_id);
1023 ps->sps_list[sps_id] = sps_buf;
1029 static void hevc_pps_free(void *opaque, uint8_t *data)
1031 HEVCPPS *pps = (HEVCPPS*)data;
1033 av_freep(&pps->column_width);
1034 av_freep(&pps->row_height);
1035 av_freep(&pps->col_bd);
1036 av_freep(&pps->row_bd);
1037 av_freep(&pps->col_idxX);
1038 av_freep(&pps->ctb_addr_rs_to_ts);
1039 av_freep(&pps->ctb_addr_ts_to_rs);
1040 av_freep(&pps->tile_pos_rs);
1041 av_freep(&pps->tile_id);
1042 av_freep(&pps->min_tb_addr_zs);
1047 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1048 HEVCPPS *pps, HEVCSPS *sps)
1051 int pic_area_in_ctbs, pic_area_in_min_tbs;
1052 int i, j, x, y, ctb_addr_rs, tile_id;
1054 // Inferred parameters
1055 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1056 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1057 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1058 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1059 return AVERROR(ENOMEM);
1061 if (pps->uniform_spacing_flag) {
1062 if (!pps->column_width) {
1063 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1064 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1066 if (!pps->column_width || !pps->row_height)
1067 return AVERROR(ENOMEM);
1069 for (i = 0; i < pps->num_tile_columns; i++) {
1070 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1071 (i * sps->ctb_width) / pps->num_tile_columns;
1074 for (i = 0; i < pps->num_tile_rows; i++) {
1075 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1076 (i * sps->ctb_height) / pps->num_tile_rows;
1081 for (i = 0; i < pps->num_tile_columns; i++)
1082 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1085 for (i = 0; i < pps->num_tile_rows; i++)
1086 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1088 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1089 if (i > pps->col_bd[j])
1091 pps->col_idxX[i] = j;
1097 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1098 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1100 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1101 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1102 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1103 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1104 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1105 !pps->tile_id || !pps->min_tb_addr_zs) {
1106 return AVERROR(ENOMEM);
1109 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1110 int tb_x = ctb_addr_rs % sps->ctb_width;
1111 int tb_y = ctb_addr_rs / sps->ctb_width;
1116 for (i = 0; i < pps->num_tile_columns; i++) {
1117 if (tb_x < pps->col_bd[i + 1]) {
1123 for (i = 0; i < pps->num_tile_rows; i++) {
1124 if (tb_y < pps->row_bd[i + 1]) {
1130 for (i = 0; i < tile_x; i++)
1131 val += pps->row_height[tile_y] * pps->column_width[i];
1132 for (i = 0; i < tile_y; i++)
1133 val += sps->ctb_width * pps->row_height[i];
1135 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1136 tb_x - pps->col_bd[tile_x];
1138 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1139 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1142 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1143 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1144 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1145 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1146 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1148 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1149 if (!pps->tile_pos_rs)
1150 return AVERROR(ENOMEM);
1152 for (j = 0; j < pps->num_tile_rows; j++)
1153 for (i = 0; i < pps->num_tile_columns; i++)
1154 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1155 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1157 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1158 for (y = 0; y < sps->min_tb_height; y++) {
1159 for (x = 0; x < sps->min_tb_width; x++) {
1160 int tb_x = x >> log2_diff;
1161 int tb_y = y >> log2_diff;
1162 int rs = sps->ctb_width * tb_y + tb_x;
1163 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1164 for (i = 0; i < log2_diff; i++) {
1166 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1168 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1175 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1178 HEVCSPS *sps = NULL;
1180 unsigned int pps_id = 0;
1182 AVBufferRef *pps_buf;
1183 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1186 return AVERROR(ENOMEM);
1188 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1189 hevc_pps_free, NULL, 0);
1192 return AVERROR(ENOMEM);
1195 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1198 pps->loop_filter_across_tiles_enabled_flag = 1;
1199 pps->num_tile_columns = 1;
1200 pps->num_tile_rows = 1;
1201 pps->uniform_spacing_flag = 1;
1202 pps->disable_dbf = 0;
1203 pps->beta_offset = 0;
1207 pps_id = get_ue_golomb_long(gb);
1208 if (pps_id >= HEVC_MAX_PPS_COUNT) {
1209 av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1210 ret = AVERROR_INVALIDDATA;
1213 pps->sps_id = get_ue_golomb_long(gb);
1214 if (pps->sps_id >= HEVC_MAX_SPS_COUNT) {
1215 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1216 ret = AVERROR_INVALIDDATA;
1219 if (!ps->sps_list[pps->sps_id]) {
1220 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1221 ret = AVERROR_INVALIDDATA;
1224 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1226 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1227 pps->output_flag_present_flag = get_bits1(gb);
1228 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1230 pps->sign_data_hiding_flag = get_bits1(gb);
1232 pps->cabac_init_present_flag = get_bits1(gb);
1234 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1235 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1237 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1239 pps->constrained_intra_pred_flag = get_bits1(gb);
1240 pps->transform_skip_enabled_flag = get_bits1(gb);
1242 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1243 pps->diff_cu_qp_delta_depth = 0;
1244 if (pps->cu_qp_delta_enabled_flag)
1245 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1247 pps->cb_qp_offset = get_se_golomb(gb);
1248 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1249 av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1251 ret = AVERROR_INVALIDDATA;
1254 pps->cr_qp_offset = get_se_golomb(gb);
1255 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1256 av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1258 ret = AVERROR_INVALIDDATA;
1261 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1263 pps->weighted_pred_flag = get_bits1(gb);
1264 pps->weighted_bipred_flag = get_bits1(gb);
1266 pps->transquant_bypass_enable_flag = get_bits1(gb);
1267 pps->tiles_enabled_flag = get_bits1(gb);
1268 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1270 if (pps->tiles_enabled_flag) {
1271 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1272 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1273 if (pps->num_tile_columns == 0 ||
1274 pps->num_tile_columns >= sps->width) {
1275 av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1276 pps->num_tile_columns - 1);
1277 ret = AVERROR_INVALIDDATA;
1280 if (pps->num_tile_rows == 0 ||
1281 pps->num_tile_rows >= sps->height) {
1282 av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1283 pps->num_tile_rows - 1);
1284 ret = AVERROR_INVALIDDATA;
1288 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1289 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1290 if (!pps->column_width || !pps->row_height) {
1291 ret = AVERROR(ENOMEM);
1295 pps->uniform_spacing_flag = get_bits1(gb);
1296 if (!pps->uniform_spacing_flag) {
1298 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1299 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1300 sum += pps->column_width[i];
1302 if (sum >= sps->ctb_width) {
1303 av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1304 ret = AVERROR_INVALIDDATA;
1307 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1310 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1311 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1312 sum += pps->row_height[i];
1314 if (sum >= sps->ctb_height) {
1315 av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1316 ret = AVERROR_INVALIDDATA;
1319 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1321 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1324 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1326 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1327 if (pps->deblocking_filter_control_present_flag) {
1328 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1329 pps->disable_dbf = get_bits1(gb);
1330 if (!pps->disable_dbf) {
1331 pps->beta_offset = get_se_golomb(gb) * 2;
1332 pps->tc_offset = get_se_golomb(gb) * 2;
1333 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1334 av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1335 pps->beta_offset/2);
1336 ret = AVERROR_INVALIDDATA;
1339 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1340 av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1342 ret = AVERROR_INVALIDDATA;
1348 pps->scaling_list_data_present_flag = get_bits1(gb);
1349 if (pps->scaling_list_data_present_flag) {
1350 set_default_scaling_list_data(&pps->scaling_list);
1351 ret = scaling_list_data(gb, avctx, &pps->scaling_list);
1355 pps->lists_modification_present_flag = get_bits1(gb);
1356 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1357 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1358 av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1359 pps->log2_parallel_merge_level - 2);
1360 ret = AVERROR_INVALIDDATA;
1364 pps->slice_header_extension_present_flag = get_bits1(gb);
1365 skip_bits1(gb); // pps_extension_flag
1367 ret = setup_pps(avctx, gb, pps, sps);
1371 remove_pps(ps, pps_id);
1372 ps->pps_list[pps_id] = pps_buf;
1377 av_buffer_unref(&pps_buf);