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 static void remove_pps(HEVCParamSets *s, int id)
74 if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
76 av_buffer_unref(&s->pps_list[id]);
79 static void remove_sps(HEVCParamSets *s, int id)
82 if (s->sps_list[id]) {
83 if (s->sps == (const HEVCSPS*)s->sps_list[id]->data)
86 /* drop all PPS that depend on this SPS */
87 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
88 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id)
91 av_assert0(!(s->sps_list[id] && s->sps == (HEVCSPS*)s->sps_list[id]->data));
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;
126 unsigned abs_delta_rps;
127 uint8_t use_delta_flag = 0;
128 uint8_t delta_rps_sign;
130 if (is_slice_header) {
131 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
132 if (delta_idx > sps->nb_st_rps) {
133 av_log(avctx, AV_LOG_ERROR,
134 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
135 delta_idx, sps->nb_st_rps);
136 return AVERROR_INVALIDDATA;
138 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
139 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
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 if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
146 av_log(avctx, AV_LOG_ERROR,
147 "Invalid value of abs_delta_rps: %d\n",
149 return AVERROR_INVALIDDATA;
151 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
152 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
153 int used = rps->used[k] = get_bits1(gb);
156 use_delta_flag = get_bits1(gb);
158 if (used || use_delta_flag) {
159 if (i < rps_ridx->num_delta_pocs)
160 delta_poc = delta_rps + rps_ridx->delta_poc[i];
162 delta_poc = delta_rps;
163 rps->delta_poc[k] = delta_poc;
172 rps->num_delta_pocs = k;
173 rps->num_negative_pics = k0;
174 // sort in increasing order (smallest first)
175 if (rps->num_delta_pocs != 0) {
177 for (i = 1; i < rps->num_delta_pocs; i++) {
178 delta_poc = rps->delta_poc[i];
180 for (k = i - 1; k >= 0; k--) {
181 tmp = rps->delta_poc[k];
182 if (delta_poc < tmp) {
183 rps->delta_poc[k + 1] = tmp;
184 rps->used[k + 1] = rps->used[k];
185 rps->delta_poc[k] = delta_poc;
191 if ((rps->num_negative_pics >> 1) != 0) {
193 k = rps->num_negative_pics - 1;
194 // flip the negative values to largest first
195 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
196 delta_poc = rps->delta_poc[i];
198 rps->delta_poc[i] = rps->delta_poc[k];
199 rps->used[i] = rps->used[k];
200 rps->delta_poc[k] = delta_poc;
206 unsigned int prev, nb_positive_pics;
207 rps->num_negative_pics = get_ue_golomb_long(gb);
208 nb_positive_pics = get_ue_golomb_long(gb);
210 if (rps->num_negative_pics >= MAX_REFS ||
211 nb_positive_pics >= MAX_REFS) {
212 av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
213 return AVERROR_INVALIDDATA;
216 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
217 if (rps->num_delta_pocs) {
219 for (i = 0; i < rps->num_negative_pics; i++) {
220 delta_poc = get_ue_golomb_long(gb) + 1;
222 rps->delta_poc[i] = prev;
223 rps->used[i] = get_bits1(gb);
226 for (i = 0; i < nb_positive_pics; i++) {
227 delta_poc = get_ue_golomb_long(gb) + 1;
229 rps->delta_poc[rps->num_negative_pics + i] = prev;
230 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
238 static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
243 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 16 + 16 + 12)
246 ptl->profile_space = get_bits(gb, 2);
247 ptl->tier_flag = get_bits1(gb);
248 ptl->profile_idc = get_bits(gb, 5);
249 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
250 av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
251 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
252 av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
253 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
254 av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
255 else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
256 av_log(avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n");
258 av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
260 for (i = 0; i < 32; i++) {
261 ptl->profile_compatibility_flag[i] = get_bits1(gb);
263 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
264 ptl->profile_idc = i;
266 ptl->progressive_source_flag = get_bits1(gb);
267 ptl->interlaced_source_flag = get_bits1(gb);
268 ptl->non_packed_constraint_flag = get_bits1(gb);
269 ptl->frame_only_constraint_flag = get_bits1(gb);
271 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
272 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
273 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
278 static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
279 PTL *ptl, int max_num_sub_layers)
282 if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 ||
283 get_bits_left(gb) < 8 + 8*2) {
284 av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
288 ptl->general_ptl.level_idc = get_bits(gb, 8);
290 for (i = 0; i < max_num_sub_layers - 1; i++) {
291 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
292 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
295 if (max_num_sub_layers - 1> 0)
296 for (i = max_num_sub_layers - 1; i < 8; i++)
297 skip_bits(gb, 2); // reserved_zero_2bits[i]
298 for (i = 0; i < max_num_sub_layers - 1; i++) {
299 if (ptl->sub_layer_profile_present_flag[i] &&
300 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
301 av_log(avctx, AV_LOG_ERROR,
302 "PTL information for sublayer %i too short\n", i);
305 if (ptl->sub_layer_level_present_flag[i]) {
306 if (get_bits_left(gb) < 8) {
307 av_log(avctx, AV_LOG_ERROR,
308 "Not enough data for sublayer %i level_idc\n", i);
311 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
318 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
319 int subpic_params_present)
323 for (i = 0; i < nb_cpb; i++) {
324 get_ue_golomb_long(gb); // bit_rate_value_minus1
325 get_ue_golomb_long(gb); // cpb_size_value_minus1
327 if (subpic_params_present) {
328 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
329 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
331 skip_bits1(gb); // cbr_flag
335 static int decode_hrd(GetBitContext *gb, int common_inf_present,
338 int nal_params_present = 0, vcl_params_present = 0;
339 int subpic_params_present = 0;
342 if (common_inf_present) {
343 nal_params_present = get_bits1(gb);
344 vcl_params_present = get_bits1(gb);
346 if (nal_params_present || vcl_params_present) {
347 subpic_params_present = get_bits1(gb);
349 if (subpic_params_present) {
350 skip_bits(gb, 8); // tick_divisor_minus2
351 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
352 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
353 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
356 skip_bits(gb, 4); // bit_rate_scale
357 skip_bits(gb, 4); // cpb_size_scale
359 if (subpic_params_present)
360 skip_bits(gb, 4); // cpb_size_du_scale
362 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
363 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
364 skip_bits(gb, 5); // dpb_output_delay_length_minus1
368 for (i = 0; i < max_sublayers; i++) {
370 unsigned int nb_cpb = 1;
371 int fixed_rate = get_bits1(gb);
374 fixed_rate = get_bits1(gb);
377 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
379 low_delay = get_bits1(gb);
382 nb_cpb = get_ue_golomb_long(gb) + 1;
383 if (nb_cpb < 1 || nb_cpb > 32) {
384 av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb);
385 return AVERROR_INVALIDDATA;
389 if (nal_params_present)
390 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
391 if (vcl_params_present)
392 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
397 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
403 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
406 return AVERROR(ENOMEM);
407 vps = (HEVCVPS*)vps_buf->data;
409 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
411 vps_id = get_bits(gb, 4);
412 if (vps_id >= MAX_VPS_COUNT) {
413 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
417 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
418 av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
422 vps->vps_max_layers = get_bits(gb, 6) + 1;
423 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
424 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
426 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
427 av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
431 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
432 av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
433 vps->vps_max_sub_layers);
437 if (parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers) < 0)
440 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
442 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
443 for (; i < vps->vps_max_sub_layers; i++) {
444 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
445 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
446 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
448 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
449 av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
450 vps->vps_max_dec_pic_buffering[i] - 1);
453 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
454 av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
455 vps->vps_num_reorder_pics[i]);
456 if (avctx->err_recognition & AV_EF_EXPLODE)
461 vps->vps_max_layer_id = get_bits(gb, 6);
462 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
463 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
464 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
465 av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
469 for (i = 1; i < vps->vps_num_layer_sets; i++)
470 for (j = 0; j <= vps->vps_max_layer_id; j++)
471 skip_bits(gb, 1); // layer_id_included_flag[i][j]
473 vps->vps_timing_info_present_flag = get_bits1(gb);
474 if (vps->vps_timing_info_present_flag) {
475 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
476 vps->vps_time_scale = get_bits_long(gb, 32);
477 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
478 if (vps->vps_poc_proportional_to_timing_flag)
479 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
480 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
481 if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) {
482 av_log(avctx, AV_LOG_ERROR,
483 "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
486 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
487 int common_inf_present = 1;
489 get_ue_golomb_long(gb); // hrd_layer_set_idx
491 common_inf_present = get_bits1(gb);
492 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
495 get_bits1(gb); /* vps_extension_flag */
497 if (get_bits_left(gb) < 0) {
498 av_log(avctx, AV_LOG_ERROR,
499 "Overread VPS by %d bits\n", -get_bits_left(gb));
500 if (ps->vps_list[vps_id])
504 if (ps->vps_list[vps_id] &&
505 !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
506 av_buffer_unref(&vps_buf);
508 remove_vps(ps, vps_id);
509 ps->vps_list[vps_id] = vps_buf;
515 av_buffer_unref(&vps_buf);
516 return AVERROR_INVALIDDATA;
519 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
520 int apply_defdispwin, HEVCSPS *sps)
522 VUI *vui = &sps->vui;
523 GetBitContext backup;
524 int sar_present, alt = 0;
526 av_log(avctx, AV_LOG_DEBUG, "Decoding VUI\n");
528 sar_present = get_bits1(gb);
530 uint8_t sar_idx = get_bits(gb, 8);
531 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
532 vui->sar = vui_sar[sar_idx];
533 else if (sar_idx == 255) {
534 vui->sar.num = get_bits(gb, 16);
535 vui->sar.den = get_bits(gb, 16);
537 av_log(avctx, AV_LOG_WARNING,
538 "Unknown SAR index: %u.\n", sar_idx);
541 vui->overscan_info_present_flag = get_bits1(gb);
542 if (vui->overscan_info_present_flag)
543 vui->overscan_appropriate_flag = get_bits1(gb);
545 vui->video_signal_type_present_flag = get_bits1(gb);
546 if (vui->video_signal_type_present_flag) {
547 vui->video_format = get_bits(gb, 3);
548 vui->video_full_range_flag = get_bits1(gb);
549 vui->colour_description_present_flag = get_bits1(gb);
550 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
551 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
552 if (vui->colour_description_present_flag) {
553 vui->colour_primaries = get_bits(gb, 8);
554 vui->transfer_characteristic = get_bits(gb, 8);
555 vui->matrix_coeffs = get_bits(gb, 8);
557 // Set invalid values to "unspecified"
558 if (vui->colour_primaries >= AVCOL_PRI_NB)
559 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
560 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
561 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
562 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
563 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
567 vui->chroma_loc_info_present_flag = get_bits1(gb);
568 if (vui->chroma_loc_info_present_flag) {
569 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
570 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
573 vui->neutra_chroma_indication_flag = get_bits1(gb);
574 vui->field_seq_flag = get_bits1(gb);
575 vui->frame_field_info_present_flag = get_bits1(gb);
577 if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) {
578 vui->default_display_window_flag = 0;
579 av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
581 vui->default_display_window_flag = get_bits1(gb);
582 // Backup context in case an alternate header is detected
583 memcpy(&backup, gb, sizeof(backup));
585 if (vui->default_display_window_flag) {
586 //TODO: * 2 is only valid for 420
587 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
588 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
589 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
590 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
592 if (apply_defdispwin &&
593 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
594 av_log(avctx, AV_LOG_DEBUG,
595 "discarding vui default display window, "
596 "original values are l:%u r:%u t:%u b:%u\n",
597 vui->def_disp_win.left_offset,
598 vui->def_disp_win.right_offset,
599 vui->def_disp_win.top_offset,
600 vui->def_disp_win.bottom_offset);
602 vui->def_disp_win.left_offset =
603 vui->def_disp_win.right_offset =
604 vui->def_disp_win.top_offset =
605 vui->def_disp_win.bottom_offset = 0;
609 vui->vui_timing_info_present_flag = get_bits1(gb);
611 if (vui->vui_timing_info_present_flag) {
612 if( get_bits_left(gb) < 66) {
613 // The alternate syntax seem to have timing info located
614 // at where def_disp_win is normally located
615 av_log(avctx, AV_LOG_WARNING,
616 "Strange VUI timing information, retrying...\n");
617 vui->default_display_window_flag = 0;
618 memset(&vui->def_disp_win, 0, sizeof(vui->def_disp_win));
619 memcpy(gb, &backup, sizeof(backup));
622 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
623 vui->vui_time_scale = get_bits_long(gb, 32);
625 av_log(avctx, AV_LOG_INFO, "Retry got %i/%i fps\n",
626 vui->vui_time_scale, vui->vui_num_units_in_tick);
628 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
629 if (vui->vui_poc_proportional_to_timing_flag)
630 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
631 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
632 if (vui->vui_hrd_parameters_present_flag)
633 decode_hrd(gb, 1, sps->max_sub_layers);
636 vui->bitstream_restriction_flag = get_bits1(gb);
637 if (vui->bitstream_restriction_flag) {
638 vui->tiles_fixed_structure_flag = get_bits1(gb);
639 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
640 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
641 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
642 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
643 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
644 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
645 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
649 static void set_default_scaling_list_data(ScalingList *sl)
653 for (matrixId = 0; matrixId < 6; matrixId++) {
655 memset(sl->sl[0][matrixId], 16, 16);
656 sl->sl_dc[0][matrixId] = 16; // default for 16x16
657 sl->sl_dc[1][matrixId] = 16; // default for 32x32
659 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
660 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
661 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
662 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
663 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
664 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
665 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
666 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
667 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
668 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
669 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
670 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
671 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
672 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
673 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
674 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
675 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
676 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
679 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl, HEVCSPS *sps)
681 uint8_t scaling_list_pred_mode_flag;
682 int32_t scaling_list_dc_coef[2][6];
683 int size_id, matrix_id, pos;
686 for (size_id = 0; size_id < 4; size_id++)
687 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
688 scaling_list_pred_mode_flag = get_bits1(gb);
689 if (!scaling_list_pred_mode_flag) {
690 unsigned int delta = get_ue_golomb_long(gb);
691 /* Only need to handle non-zero delta. Zero means default,
692 * which should already be in the arrays. */
694 // Copy from previous array.
695 if (matrix_id < delta) {
696 av_log(avctx, AV_LOG_ERROR,
697 "Invalid delta in scaling list data: %d.\n", delta);
698 return AVERROR_INVALIDDATA;
701 memcpy(sl->sl[size_id][matrix_id],
702 sl->sl[size_id][matrix_id - delta],
703 size_id > 0 ? 64 : 16);
705 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
708 int next_coef, coef_num;
709 int32_t scaling_list_delta_coef;
712 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
714 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
715 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
716 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
718 for (i = 0; i < coef_num; i++) {
720 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
721 ff_hevc_diag_scan4x4_x[i];
723 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
724 ff_hevc_diag_scan8x8_x[i];
726 scaling_list_delta_coef = get_se_golomb(gb);
727 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
728 sl->sl[size_id][matrix_id][pos] = next_coef;
733 if (sps->chroma_format_idc == 3) {
734 for (i = 0; i < 64; i++) {
735 sl->sl[3][1][i] = sl->sl[2][1][i];
736 sl->sl[3][2][i] = sl->sl[2][2][i];
737 sl->sl[3][4][i] = sl->sl[2][4][i];
738 sl->sl[3][5][i] = sl->sl[2][5][i];
740 sl->sl_dc[1][1] = sl->sl_dc[0][1];
741 sl->sl_dc[1][2] = sl->sl_dc[0][2];
742 sl->sl_dc[1][4] = sl->sl_dc[0][4];
743 sl->sl_dc[1][5] = sl->sl_dc[0][5];
750 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
752 const AVPixFmtDescriptor *desc;
753 switch (sps->bit_depth) {
755 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
756 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
757 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
758 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
761 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
762 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
763 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
764 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
767 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
768 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
769 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
770 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
773 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
774 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
775 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
776 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
779 av_log(avctx, AV_LOG_ERROR,
780 "4:2:0, 4:2:2, 4:4:4 supports are currently specified for 8, 10 and 12 bits.\n");
781 av_log(avctx, AV_LOG_ERROR,
782 "chroma_format_idc is %d, depth is %d",
783 sps->chroma_format_idc, sps->bit_depth);
784 return AVERROR_INVALIDDATA;
787 desc = av_pix_fmt_desc_get(sps->pix_fmt);
789 return 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;
800 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
801 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
804 int log2_diff_max_min_transform_block_size;
805 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
810 sps->vps_id = get_bits(gb, 4);
811 if (sps->vps_id >= MAX_VPS_COUNT) {
812 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
813 return AVERROR_INVALIDDATA;
816 if (vps_list && !vps_list[sps->vps_id]) {
817 av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
819 return AVERROR_INVALIDDATA;
822 sps->max_sub_layers = get_bits(gb, 3) + 1;
823 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
824 av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
825 sps->max_sub_layers);
826 return AVERROR_INVALIDDATA;
829 skip_bits1(gb); // temporal_id_nesting_flag
831 if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0)
834 *sps_id = get_ue_golomb_long(gb);
835 if (*sps_id >= MAX_SPS_COUNT) {
836 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
837 return AVERROR_INVALIDDATA;
840 sps->chroma_format_idc = get_ue_golomb_long(gb);
841 if (sps->chroma_format_idc > 3U) {
842 av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
843 return AVERROR_INVALIDDATA;
846 if (sps->chroma_format_idc == 3)
847 sps->separate_colour_plane_flag = get_bits1(gb);
849 if (sps->separate_colour_plane_flag)
850 sps->chroma_format_idc = 0;
852 sps->width = get_ue_golomb_long(gb);
853 sps->height = get_ue_golomb_long(gb);
854 if ((ret = av_image_check_size(sps->width,
855 sps->height, 0, avctx)) < 0)
858 if (get_bits1(gb)) { // pic_conformance_flag
859 //TODO: * 2 is only valid for 420
860 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
861 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
862 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
863 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
865 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
866 av_log(avctx, AV_LOG_DEBUG,
867 "discarding sps conformance window, "
868 "original values are l:%u r:%u t:%u b:%u\n",
869 sps->pic_conf_win.left_offset,
870 sps->pic_conf_win.right_offset,
871 sps->pic_conf_win.top_offset,
872 sps->pic_conf_win.bottom_offset);
874 sps->pic_conf_win.left_offset =
875 sps->pic_conf_win.right_offset =
876 sps->pic_conf_win.top_offset =
877 sps->pic_conf_win.bottom_offset = 0;
879 sps->output_window = sps->pic_conf_win;
882 sps->bit_depth = get_ue_golomb_long(gb) + 8;
883 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
884 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
885 av_log(avctx, AV_LOG_ERROR,
886 "Luma bit depth (%d) is different from chroma bit depth (%d), "
887 "this is unsupported.\n",
888 sps->bit_depth, bit_depth_chroma);
889 return AVERROR_INVALIDDATA;
892 ret = map_pixel_format(avctx, sps);
896 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
897 if (sps->log2_max_poc_lsb > 16) {
898 av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
899 sps->log2_max_poc_lsb - 4);
900 return AVERROR_INVALIDDATA;
903 sublayer_ordering_info = get_bits1(gb);
904 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
905 for (i = start; i < sps->max_sub_layers; i++) {
906 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
907 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
908 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
909 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
910 av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
911 sps->temporal_layer[i].max_dec_pic_buffering - 1);
912 return AVERROR_INVALIDDATA;
914 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
915 av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
916 sps->temporal_layer[i].num_reorder_pics);
917 if (avctx->err_recognition & AV_EF_EXPLODE ||
918 sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
919 return AVERROR_INVALIDDATA;
921 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
925 if (!sublayer_ordering_info) {
926 for (i = 0; i < start; i++) {
927 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
928 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
929 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
933 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
934 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
935 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
936 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
937 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
938 sps->log2_min_tb_size;
940 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
941 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
942 return AVERROR_INVALIDDATA;
945 if (sps->log2_diff_max_min_coding_block_size > 30) {
946 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_coding_block_size", sps->log2_diff_max_min_coding_block_size);
947 return AVERROR_INVALIDDATA;
950 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
951 av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
952 return AVERROR_INVALIDDATA;
955 if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
956 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
957 return AVERROR_INVALIDDATA;
960 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
961 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
963 sps->scaling_list_enable_flag = get_bits1(gb);
964 if (sps->scaling_list_enable_flag) {
965 set_default_scaling_list_data(&sps->scaling_list);
968 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
974 sps->amp_enabled_flag = get_bits1(gb);
975 sps->sao_enabled = get_bits1(gb);
977 sps->pcm_enabled_flag = get_bits1(gb);
978 if (sps->pcm_enabled_flag) {
979 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
980 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
981 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
982 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
983 get_ue_golomb_long(gb);
984 if (sps->pcm.bit_depth > sps->bit_depth) {
985 av_log(avctx, AV_LOG_ERROR,
986 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
987 sps->pcm.bit_depth, sps->bit_depth);
988 return AVERROR_INVALIDDATA;
991 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
994 sps->nb_st_rps = get_ue_golomb_long(gb);
995 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
996 av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
998 return AVERROR_INVALIDDATA;
1000 for (i = 0; i < sps->nb_st_rps; i++) {
1001 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
1006 sps->long_term_ref_pics_present_flag = get_bits1(gb);
1007 if (sps->long_term_ref_pics_present_flag) {
1008 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1009 if (sps->num_long_term_ref_pics_sps > 31U) {
1010 av_log(avctx, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n",
1011 sps->num_long_term_ref_pics_sps);
1012 return AVERROR_INVALIDDATA;
1014 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1015 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1016 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
1020 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
1021 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
1022 sps->vui.sar = (AVRational){0, 1};
1023 vui_present = get_bits1(gb);
1025 decode_vui(gb, avctx, apply_defdispwin, sps);
1027 if (get_bits1(gb)) { // sps_extension_flag
1028 int sps_extension_flag[1];
1029 for (i = 0; i < 1; i++)
1030 sps_extension_flag[i] = get_bits1(gb);
1031 skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
1032 if (sps_extension_flag[0]) {
1033 int extended_precision_processing_flag;
1034 int high_precision_offsets_enabled_flag;
1035 int cabac_bypass_alignment_enabled_flag;
1037 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
1038 sps->transform_skip_context_enabled_flag = get_bits1(gb);
1039 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
1041 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
1043 extended_precision_processing_flag = get_bits1(gb);
1044 if (extended_precision_processing_flag)
1045 av_log(avctx, AV_LOG_WARNING,
1046 "extended_precision_processing_flag not yet implemented\n");
1048 sps->intra_smoothing_disabled_flag = get_bits1(gb);
1049 high_precision_offsets_enabled_flag = get_bits1(gb);
1050 if (high_precision_offsets_enabled_flag)
1051 av_log(avctx, AV_LOG_WARNING,
1052 "high_precision_offsets_enabled_flag not yet implemented\n");
1054 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
1056 cabac_bypass_alignment_enabled_flag = get_bits1(gb);
1057 if (cabac_bypass_alignment_enabled_flag)
1058 av_log(avctx, AV_LOG_WARNING,
1059 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1062 if (apply_defdispwin) {
1063 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1064 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1065 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1066 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1068 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
1069 !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {
1070 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
1071 av_log(avctx, AV_LOG_WARNING, "Reducing left output window to %d "
1072 "chroma samples to preserve alignment.\n",
1073 sps->output_window.left_offset);
1075 sps->output_width = sps->width -
1076 (sps->output_window.left_offset + sps->output_window.right_offset);
1077 sps->output_height = sps->height -
1078 (sps->output_window.top_offset + sps->output_window.bottom_offset);
1079 if (sps->width <= sps->output_window.left_offset + (int64_t)sps->output_window.right_offset ||
1080 sps->height <= sps->output_window.top_offset + (int64_t)sps->output_window.bottom_offset) {
1081 av_log(avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
1082 sps->output_width, sps->output_height);
1083 if (avctx->err_recognition & AV_EF_EXPLODE) {
1084 return AVERROR_INVALIDDATA;
1086 av_log(avctx, AV_LOG_WARNING,
1087 "Displaying the whole video surface.\n");
1088 memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1089 memset(&sps->output_window, 0, sizeof(sps->output_window));
1090 sps->output_width = sps->width;
1091 sps->output_height = sps->height;
1094 // Inferred parameters
1095 sps->log2_ctb_size = sps->log2_min_cb_size +
1096 sps->log2_diff_max_min_coding_block_size;
1097 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1099 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
1100 av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1101 return AVERROR_INVALIDDATA;
1103 if (sps->log2_ctb_size < 4) {
1106 "log2_ctb_size %d differs from the bounds of any known profile\n",
1107 sps->log2_ctb_size);
1108 avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1109 return AVERROR_INVALIDDATA;
1112 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1113 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1114 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1116 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1117 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1118 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1119 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1120 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1121 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1122 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1124 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1126 if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) ||
1127 av_mod_uintp2(sps->height, sps->log2_min_cb_size)) {
1128 av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1129 return AVERROR_INVALIDDATA;
1132 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1133 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1134 sps->max_transform_hierarchy_depth_inter);
1135 return AVERROR_INVALIDDATA;
1137 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1138 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1139 sps->max_transform_hierarchy_depth_intra);
1140 return AVERROR_INVALIDDATA;
1142 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1143 av_log(avctx, AV_LOG_ERROR,
1144 "max transform block size out of range: %d\n",
1145 sps->log2_max_trafo_size);
1146 return AVERROR_INVALIDDATA;
1149 if (get_bits_left(gb) < 0) {
1150 av_log(avctx, AV_LOG_ERROR,
1151 "Overread SPS by %d bits\n", -get_bits_left(gb));
1152 return AVERROR_INVALIDDATA;
1158 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1159 HEVCParamSets *ps, int apply_defdispwin)
1162 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
1163 unsigned int sps_id;
1167 return AVERROR(ENOMEM);
1168 sps = (HEVCSPS*)sps_buf->data;
1170 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1172 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1174 ps->vps_list, avctx);
1176 av_buffer_unref(&sps_buf);
1180 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1181 av_log(avctx, AV_LOG_DEBUG,
1182 "Parsed SPS: id %d; coded wxh: %dx%d; "
1183 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1184 sps_id, sps->width, sps->height,
1185 sps->output_width, sps->output_height,
1186 av_get_pix_fmt_name(sps->pix_fmt));
1189 /* check if this is a repeat of an already parsed SPS, then keep the
1191 * otherwise drop all PPSes that depend on it */
1192 if (ps->sps_list[sps_id] &&
1193 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1194 av_buffer_unref(&sps_buf);
1196 remove_sps(ps, sps_id);
1197 ps->sps_list[sps_id] = sps_buf;
1203 static void hevc_pps_free(void *opaque, uint8_t *data)
1205 HEVCPPS *pps = (HEVCPPS*)data;
1207 av_freep(&pps->column_width);
1208 av_freep(&pps->row_height);
1209 av_freep(&pps->col_bd);
1210 av_freep(&pps->row_bd);
1211 av_freep(&pps->col_idxX);
1212 av_freep(&pps->ctb_addr_rs_to_ts);
1213 av_freep(&pps->ctb_addr_ts_to_rs);
1214 av_freep(&pps->tile_pos_rs);
1215 av_freep(&pps->tile_id);
1216 av_freep(&pps->min_tb_addr_zs_tab);
1221 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1222 HEVCPPS *pps, HEVCSPS *sps) {
1225 if (pps->transform_skip_enabled_flag) {
1226 pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
1228 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1229 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1230 if (pps->chroma_qp_offset_list_enabled_flag) {
1231 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb);
1232 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb);
1233 if (pps->chroma_qp_offset_list_len_minus1 && pps->chroma_qp_offset_list_len_minus1 >= 5) {
1234 av_log(avctx, AV_LOG_ERROR,
1235 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1236 return AVERROR_INVALIDDATA;
1238 for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1239 pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
1240 if (pps->cb_qp_offset_list[i]) {
1241 av_log(avctx, AV_LOG_WARNING,
1242 "cb_qp_offset_list not tested yet.\n");
1244 pps->cr_qp_offset_list[i] = get_se_golomb_long(gb);
1245 if (pps->cr_qp_offset_list[i]) {
1246 av_log(avctx, AV_LOG_WARNING,
1247 "cb_qp_offset_list not tested yet.\n");
1251 pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb);
1252 pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb);
1257 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1258 HEVCPPS *pps, HEVCSPS *sps)
1261 int pic_area_in_ctbs;
1262 int i, j, x, y, ctb_addr_rs, tile_id;
1264 // Inferred parameters
1265 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1266 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1267 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1268 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1269 return AVERROR(ENOMEM);
1271 if (pps->uniform_spacing_flag) {
1272 if (!pps->column_width) {
1273 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1274 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1276 if (!pps->column_width || !pps->row_height)
1277 return AVERROR(ENOMEM);
1279 for (i = 0; i < pps->num_tile_columns; i++) {
1280 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1281 (i * sps->ctb_width) / pps->num_tile_columns;
1284 for (i = 0; i < pps->num_tile_rows; i++) {
1285 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1286 (i * sps->ctb_height) / pps->num_tile_rows;
1291 for (i = 0; i < pps->num_tile_columns; i++)
1292 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1295 for (i = 0; i < pps->num_tile_rows; i++)
1296 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1298 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1299 if (i > pps->col_bd[j])
1301 pps->col_idxX[i] = j;
1307 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1309 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1310 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1311 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1312 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1313 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1314 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1315 return AVERROR(ENOMEM);
1318 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1319 int tb_x = ctb_addr_rs % sps->ctb_width;
1320 int tb_y = ctb_addr_rs / sps->ctb_width;
1325 for (i = 0; i < pps->num_tile_columns; i++) {
1326 if (tb_x < pps->col_bd[i + 1]) {
1332 for (i = 0; i < pps->num_tile_rows; i++) {
1333 if (tb_y < pps->row_bd[i + 1]) {
1339 for (i = 0; i < tile_x; i++)
1340 val += pps->row_height[tile_y] * pps->column_width[i];
1341 for (i = 0; i < tile_y; i++)
1342 val += sps->ctb_width * pps->row_height[i];
1344 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1345 tb_x - pps->col_bd[tile_x];
1347 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1348 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1351 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1352 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1353 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1354 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1355 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1357 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1358 if (!pps->tile_pos_rs)
1359 return AVERROR(ENOMEM);
1361 for (j = 0; j < pps->num_tile_rows; j++)
1362 for (i = 0; i < pps->num_tile_columns; i++)
1363 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1364 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1366 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1367 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1368 for (y = 0; y < sps->tb_mask+2; y++) {
1369 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1370 pps->min_tb_addr_zs_tab[y] = -1;
1372 for (y = 0; y < sps->tb_mask+1; y++) {
1373 for (x = 0; x < sps->tb_mask+1; x++) {
1374 int tb_x = x >> log2_diff;
1375 int tb_y = y >> log2_diff;
1376 int rs = sps->ctb_width * tb_y + tb_x;
1377 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1378 for (i = 0; i < log2_diff; i++) {
1380 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1382 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1389 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1392 HEVCSPS *sps = NULL;
1394 unsigned int pps_id = 0;
1396 AVBufferRef *pps_buf;
1397 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1400 return AVERROR(ENOMEM);
1402 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1403 hevc_pps_free, NULL, 0);
1406 return AVERROR(ENOMEM);
1409 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1412 pps->loop_filter_across_tiles_enabled_flag = 1;
1413 pps->num_tile_columns = 1;
1414 pps->num_tile_rows = 1;
1415 pps->uniform_spacing_flag = 1;
1416 pps->disable_dbf = 0;
1417 pps->beta_offset = 0;
1419 pps->log2_max_transform_skip_block_size = 2;
1422 pps_id = get_ue_golomb_long(gb);
1423 if (pps_id >= MAX_PPS_COUNT) {
1424 av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1425 ret = AVERROR_INVALIDDATA;
1428 pps->sps_id = get_ue_golomb_long(gb);
1429 if (pps->sps_id >= MAX_SPS_COUNT) {
1430 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1431 ret = AVERROR_INVALIDDATA;
1434 if (!ps->sps_list[pps->sps_id]) {
1435 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1436 ret = AVERROR_INVALIDDATA;
1439 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1441 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1442 pps->output_flag_present_flag = get_bits1(gb);
1443 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1445 pps->sign_data_hiding_flag = get_bits1(gb);
1447 pps->cabac_init_present_flag = get_bits1(gb);
1449 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1450 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1452 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1454 pps->constrained_intra_pred_flag = get_bits1(gb);
1455 pps->transform_skip_enabled_flag = get_bits1(gb);
1457 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1458 pps->diff_cu_qp_delta_depth = 0;
1459 if (pps->cu_qp_delta_enabled_flag)
1460 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1462 if (pps->diff_cu_qp_delta_depth < 0 ||
1463 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
1464 av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
1465 pps->diff_cu_qp_delta_depth);
1466 ret = AVERROR_INVALIDDATA;
1470 pps->cb_qp_offset = get_se_golomb(gb);
1471 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1472 av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1474 ret = AVERROR_INVALIDDATA;
1477 pps->cr_qp_offset = get_se_golomb(gb);
1478 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1479 av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1481 ret = AVERROR_INVALIDDATA;
1484 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1486 pps->weighted_pred_flag = get_bits1(gb);
1487 pps->weighted_bipred_flag = get_bits1(gb);
1489 pps->transquant_bypass_enable_flag = get_bits1(gb);
1490 pps->tiles_enabled_flag = get_bits1(gb);
1491 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1493 if (pps->tiles_enabled_flag) {
1494 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1495 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1496 if (pps->num_tile_columns <= 0 ||
1497 pps->num_tile_columns >= sps->width) {
1498 av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1499 pps->num_tile_columns - 1);
1500 ret = AVERROR_INVALIDDATA;
1503 if (pps->num_tile_rows <= 0 ||
1504 pps->num_tile_rows >= sps->height) {
1505 av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1506 pps->num_tile_rows - 1);
1507 ret = AVERROR_INVALIDDATA;
1511 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1512 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1513 if (!pps->column_width || !pps->row_height) {
1514 ret = AVERROR(ENOMEM);
1518 pps->uniform_spacing_flag = get_bits1(gb);
1519 if (!pps->uniform_spacing_flag) {
1521 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1522 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1523 sum += pps->column_width[i];
1525 if (sum >= sps->ctb_width) {
1526 av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1527 ret = AVERROR_INVALIDDATA;
1530 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1533 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1534 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1535 sum += pps->row_height[i];
1537 if (sum >= sps->ctb_height) {
1538 av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1539 ret = AVERROR_INVALIDDATA;
1542 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1544 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1547 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1549 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1550 if (pps->deblocking_filter_control_present_flag) {
1551 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1552 pps->disable_dbf = get_bits1(gb);
1553 if (!pps->disable_dbf) {
1554 pps->beta_offset = get_se_golomb(gb) * 2;
1555 pps->tc_offset = get_se_golomb(gb) * 2;
1556 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1557 av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1558 pps->beta_offset/2);
1559 ret = AVERROR_INVALIDDATA;
1562 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1563 av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1565 ret = AVERROR_INVALIDDATA;
1571 pps->scaling_list_data_present_flag = get_bits1(gb);
1572 if (pps->scaling_list_data_present_flag) {
1573 set_default_scaling_list_data(&pps->scaling_list);
1574 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
1578 pps->lists_modification_present_flag = get_bits1(gb);
1579 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1580 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1581 av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1582 pps->log2_parallel_merge_level - 2);
1583 ret = AVERROR_INVALIDDATA;
1587 pps->slice_header_extension_present_flag = get_bits1(gb);
1589 if (get_bits1(gb)) { // pps_extension_present_flag
1590 int pps_range_extensions_flag = get_bits1(gb);
1591 /* int pps_extension_7bits = */ get_bits(gb, 7);
1592 if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {
1593 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
1598 ret = setup_pps(avctx, gb, pps, sps);
1602 if (get_bits_left(gb) < 0) {
1603 av_log(avctx, AV_LOG_ERROR,
1604 "Overread PPS by %d bits\n", -get_bits_left(gb));
1608 remove_pps(ps, pps_id);
1609 ps->pps_list[pps_id] = pps_buf;
1614 av_buffer_unref(&pps_buf);