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 * (max_num_sub_layers - 1 > 0))) {
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;
564 if (vui->matrix_coeffs == AVCOL_SPC_RGB) {
565 switch (sps->pix_fmt) {
566 case AV_PIX_FMT_YUV444P:
567 sps->pix_fmt = AV_PIX_FMT_GBRP;
569 case AV_PIX_FMT_YUV444P10:
570 sps->pix_fmt = AV_PIX_FMT_GBRP10;
572 case AV_PIX_FMT_YUV444P12:
573 sps->pix_fmt = AV_PIX_FMT_GBRP12;
580 vui->chroma_loc_info_present_flag = get_bits1(gb);
581 if (vui->chroma_loc_info_present_flag) {
582 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
583 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
586 vui->neutra_chroma_indication_flag = get_bits1(gb);
587 vui->field_seq_flag = get_bits1(gb);
588 vui->frame_field_info_present_flag = get_bits1(gb);
590 if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) {
591 vui->default_display_window_flag = 0;
592 av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
594 vui->default_display_window_flag = get_bits1(gb);
595 // Backup context in case an alternate header is detected
596 memcpy(&backup, gb, sizeof(backup));
598 if (vui->default_display_window_flag) {
599 int vert_mult = 1 + (sps->chroma_format_idc < 2);
600 int horiz_mult = 1 + (sps->chroma_format_idc < 3);
601 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
602 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
603 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
604 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
606 if (apply_defdispwin &&
607 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
608 av_log(avctx, AV_LOG_DEBUG,
609 "discarding vui default display window, "
610 "original values are l:%u r:%u t:%u b:%u\n",
611 vui->def_disp_win.left_offset,
612 vui->def_disp_win.right_offset,
613 vui->def_disp_win.top_offset,
614 vui->def_disp_win.bottom_offset);
616 vui->def_disp_win.left_offset =
617 vui->def_disp_win.right_offset =
618 vui->def_disp_win.top_offset =
619 vui->def_disp_win.bottom_offset = 0;
623 vui->vui_timing_info_present_flag = get_bits1(gb);
625 if (vui->vui_timing_info_present_flag) {
626 if( get_bits_left(gb) < 66) {
627 // The alternate syntax seem to have timing info located
628 // at where def_disp_win is normally located
629 av_log(avctx, AV_LOG_WARNING,
630 "Strange VUI timing information, retrying...\n");
631 vui->default_display_window_flag = 0;
632 memset(&vui->def_disp_win, 0, sizeof(vui->def_disp_win));
633 memcpy(gb, &backup, sizeof(backup));
636 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
637 vui->vui_time_scale = get_bits_long(gb, 32);
639 av_log(avctx, AV_LOG_INFO, "Retry got %i/%i fps\n",
640 vui->vui_time_scale, vui->vui_num_units_in_tick);
642 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
643 if (vui->vui_poc_proportional_to_timing_flag)
644 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
645 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
646 if (vui->vui_hrd_parameters_present_flag)
647 decode_hrd(gb, 1, sps->max_sub_layers);
650 vui->bitstream_restriction_flag = get_bits1(gb);
651 if (vui->bitstream_restriction_flag) {
652 vui->tiles_fixed_structure_flag = get_bits1(gb);
653 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
654 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
655 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
656 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
657 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
658 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
659 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
663 static void set_default_scaling_list_data(ScalingList *sl)
667 for (matrixId = 0; matrixId < 6; matrixId++) {
669 memset(sl->sl[0][matrixId], 16, 16);
670 sl->sl_dc[0][matrixId] = 16; // default for 16x16
671 sl->sl_dc[1][matrixId] = 16; // default for 32x32
673 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
674 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
675 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
676 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
677 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
678 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
679 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
680 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
681 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
682 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
683 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
684 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
685 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
686 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
687 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
688 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
689 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
690 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
693 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl, HEVCSPS *sps)
695 uint8_t scaling_list_pred_mode_flag;
696 int32_t scaling_list_dc_coef[2][6];
697 int size_id, matrix_id, pos;
700 for (size_id = 0; size_id < 4; size_id++)
701 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
702 scaling_list_pred_mode_flag = get_bits1(gb);
703 if (!scaling_list_pred_mode_flag) {
704 unsigned int delta = get_ue_golomb_long(gb);
705 /* Only need to handle non-zero delta. Zero means default,
706 * which should already be in the arrays. */
708 // Copy from previous array.
709 if (matrix_id < delta) {
710 av_log(avctx, AV_LOG_ERROR,
711 "Invalid delta in scaling list data: %d.\n", delta);
712 return AVERROR_INVALIDDATA;
715 memcpy(sl->sl[size_id][matrix_id],
716 sl->sl[size_id][matrix_id - delta],
717 size_id > 0 ? 64 : 16);
719 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
722 int next_coef, coef_num;
723 int32_t scaling_list_delta_coef;
726 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
728 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
729 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
730 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
732 for (i = 0; i < coef_num; i++) {
734 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
735 ff_hevc_diag_scan4x4_x[i];
737 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
738 ff_hevc_diag_scan8x8_x[i];
740 scaling_list_delta_coef = get_se_golomb(gb);
741 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
742 sl->sl[size_id][matrix_id][pos] = next_coef;
747 if (sps->chroma_format_idc == 3) {
748 for (i = 0; i < 64; i++) {
749 sl->sl[3][1][i] = sl->sl[2][1][i];
750 sl->sl[3][2][i] = sl->sl[2][2][i];
751 sl->sl[3][4][i] = sl->sl[2][4][i];
752 sl->sl[3][5][i] = sl->sl[2][5][i];
754 sl->sl_dc[1][1] = sl->sl_dc[0][1];
755 sl->sl_dc[1][2] = sl->sl_dc[0][2];
756 sl->sl_dc[1][4] = sl->sl_dc[0][4];
757 sl->sl_dc[1][5] = sl->sl_dc[0][5];
764 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
766 const AVPixFmtDescriptor *desc;
767 switch (sps->bit_depth) {
769 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
770 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
771 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
772 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
775 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
776 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
777 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
778 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
781 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
782 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
783 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
784 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
787 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
788 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
789 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
790 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
793 av_log(avctx, AV_LOG_ERROR,
794 "4:2:0, 4:2:2, 4:4:4 supports are currently specified for 8, 10 and 12 bits.\n");
795 av_log(avctx, AV_LOG_ERROR,
796 "chroma_format_idc is %d, depth is %d",
797 sps->chroma_format_idc, sps->bit_depth);
798 return AVERROR_INVALIDDATA;
801 desc = av_pix_fmt_desc_get(sps->pix_fmt);
803 return AVERROR(EINVAL);
805 sps->hshift[0] = sps->vshift[0] = 0;
806 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
807 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
809 sps->pixel_shift = sps->bit_depth > 8;
814 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
815 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
818 int log2_diff_max_min_transform_block_size;
819 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
824 sps->vps_id = get_bits(gb, 4);
825 if (sps->vps_id >= MAX_VPS_COUNT) {
826 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
827 return AVERROR_INVALIDDATA;
830 if (vps_list && !vps_list[sps->vps_id]) {
831 av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
833 return AVERROR_INVALIDDATA;
836 sps->max_sub_layers = get_bits(gb, 3) + 1;
837 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
838 av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
839 sps->max_sub_layers);
840 return AVERROR_INVALIDDATA;
843 skip_bits1(gb); // temporal_id_nesting_flag
845 if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0)
848 *sps_id = get_ue_golomb_long(gb);
849 if (*sps_id >= MAX_SPS_COUNT) {
850 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
851 return AVERROR_INVALIDDATA;
854 sps->chroma_format_idc = get_ue_golomb_long(gb);
855 if (sps->chroma_format_idc > 3U) {
856 av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
857 return AVERROR_INVALIDDATA;
860 if (sps->chroma_format_idc == 3)
861 sps->separate_colour_plane_flag = get_bits1(gb);
863 if (sps->separate_colour_plane_flag)
864 sps->chroma_format_idc = 0;
866 sps->width = get_ue_golomb_long(gb);
867 sps->height = get_ue_golomb_long(gb);
868 if ((ret = av_image_check_size(sps->width,
869 sps->height, 0, avctx)) < 0)
872 if (get_bits1(gb)) { // pic_conformance_flag
873 int vert_mult = 1 + (sps->chroma_format_idc < 2);
874 int horiz_mult = 1 + (sps->chroma_format_idc < 3);
875 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
876 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
877 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
878 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
880 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
881 av_log(avctx, AV_LOG_DEBUG,
882 "discarding sps conformance window, "
883 "original values are l:%u r:%u t:%u b:%u\n",
884 sps->pic_conf_win.left_offset,
885 sps->pic_conf_win.right_offset,
886 sps->pic_conf_win.top_offset,
887 sps->pic_conf_win.bottom_offset);
889 sps->pic_conf_win.left_offset =
890 sps->pic_conf_win.right_offset =
891 sps->pic_conf_win.top_offset =
892 sps->pic_conf_win.bottom_offset = 0;
894 sps->output_window = sps->pic_conf_win;
897 sps->bit_depth = get_ue_golomb_long(gb) + 8;
898 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
899 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
900 av_log(avctx, AV_LOG_ERROR,
901 "Luma bit depth (%d) is different from chroma bit depth (%d), "
902 "this is unsupported.\n",
903 sps->bit_depth, bit_depth_chroma);
904 return AVERROR_INVALIDDATA;
907 ret = map_pixel_format(avctx, sps);
911 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
912 if (sps->log2_max_poc_lsb > 16) {
913 av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
914 sps->log2_max_poc_lsb - 4);
915 return AVERROR_INVALIDDATA;
918 sublayer_ordering_info = get_bits1(gb);
919 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
920 for (i = start; i < sps->max_sub_layers; i++) {
921 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
922 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
923 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
924 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
925 av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
926 sps->temporal_layer[i].max_dec_pic_buffering - 1);
927 return AVERROR_INVALIDDATA;
929 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
930 av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
931 sps->temporal_layer[i].num_reorder_pics);
932 if (avctx->err_recognition & AV_EF_EXPLODE ||
933 sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
934 return AVERROR_INVALIDDATA;
936 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
940 if (!sublayer_ordering_info) {
941 for (i = 0; i < start; i++) {
942 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
943 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
944 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
948 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
949 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
950 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
951 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
952 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
953 sps->log2_min_tb_size;
955 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
956 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
957 return AVERROR_INVALIDDATA;
960 if (sps->log2_diff_max_min_coding_block_size > 30) {
961 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);
962 return AVERROR_INVALIDDATA;
965 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
966 av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
967 return AVERROR_INVALIDDATA;
970 if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
971 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
972 return AVERROR_INVALIDDATA;
975 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
976 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
978 sps->scaling_list_enable_flag = get_bits1(gb);
979 if (sps->scaling_list_enable_flag) {
980 set_default_scaling_list_data(&sps->scaling_list);
983 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
989 sps->amp_enabled_flag = get_bits1(gb);
990 sps->sao_enabled = get_bits1(gb);
992 sps->pcm_enabled_flag = get_bits1(gb);
993 if (sps->pcm_enabled_flag) {
994 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
995 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
996 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
997 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
998 get_ue_golomb_long(gb);
999 if (sps->pcm.bit_depth > sps->bit_depth) {
1000 av_log(avctx, AV_LOG_ERROR,
1001 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
1002 sps->pcm.bit_depth, sps->bit_depth);
1003 return AVERROR_INVALIDDATA;
1006 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
1009 sps->nb_st_rps = get_ue_golomb_long(gb);
1010 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
1011 av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
1013 return AVERROR_INVALIDDATA;
1015 for (i = 0; i < sps->nb_st_rps; i++) {
1016 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
1021 sps->long_term_ref_pics_present_flag = get_bits1(gb);
1022 if (sps->long_term_ref_pics_present_flag) {
1023 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1024 if (sps->num_long_term_ref_pics_sps > 31U) {
1025 av_log(avctx, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n",
1026 sps->num_long_term_ref_pics_sps);
1027 return AVERROR_INVALIDDATA;
1029 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1030 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1031 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
1035 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
1036 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
1037 sps->vui.sar = (AVRational){0, 1};
1038 vui_present = get_bits1(gb);
1040 decode_vui(gb, avctx, apply_defdispwin, sps);
1042 if (get_bits1(gb)) { // sps_extension_flag
1043 int sps_extension_flag[1];
1044 for (i = 0; i < 1; i++)
1045 sps_extension_flag[i] = get_bits1(gb);
1046 skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
1047 if (sps_extension_flag[0]) {
1048 int extended_precision_processing_flag;
1049 int high_precision_offsets_enabled_flag;
1050 int cabac_bypass_alignment_enabled_flag;
1052 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
1053 sps->transform_skip_context_enabled_flag = get_bits1(gb);
1054 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
1056 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
1058 extended_precision_processing_flag = get_bits1(gb);
1059 if (extended_precision_processing_flag)
1060 av_log(avctx, AV_LOG_WARNING,
1061 "extended_precision_processing_flag not yet implemented\n");
1063 sps->intra_smoothing_disabled_flag = get_bits1(gb);
1064 high_precision_offsets_enabled_flag = get_bits1(gb);
1065 if (high_precision_offsets_enabled_flag)
1066 av_log(avctx, AV_LOG_WARNING,
1067 "high_precision_offsets_enabled_flag not yet implemented\n");
1069 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
1071 cabac_bypass_alignment_enabled_flag = get_bits1(gb);
1072 if (cabac_bypass_alignment_enabled_flag)
1073 av_log(avctx, AV_LOG_WARNING,
1074 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1077 if (apply_defdispwin) {
1078 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1079 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1080 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1081 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1083 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
1084 !(avctx->flags & AV_CODEC_FLAG_UNALIGNED)) {
1085 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
1086 av_log(avctx, AV_LOG_WARNING, "Reducing left output window to %d "
1087 "chroma samples to preserve alignment.\n",
1088 sps->output_window.left_offset);
1090 sps->output_width = sps->width -
1091 (sps->output_window.left_offset + sps->output_window.right_offset);
1092 sps->output_height = sps->height -
1093 (sps->output_window.top_offset + sps->output_window.bottom_offset);
1094 if (sps->width <= sps->output_window.left_offset + (int64_t)sps->output_window.right_offset ||
1095 sps->height <= sps->output_window.top_offset + (int64_t)sps->output_window.bottom_offset) {
1096 av_log(avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
1097 sps->output_width, sps->output_height);
1098 if (avctx->err_recognition & AV_EF_EXPLODE) {
1099 return AVERROR_INVALIDDATA;
1101 av_log(avctx, AV_LOG_WARNING,
1102 "Displaying the whole video surface.\n");
1103 memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1104 memset(&sps->output_window, 0, sizeof(sps->output_window));
1105 sps->output_width = sps->width;
1106 sps->output_height = sps->height;
1109 // Inferred parameters
1110 sps->log2_ctb_size = sps->log2_min_cb_size +
1111 sps->log2_diff_max_min_coding_block_size;
1112 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1114 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
1115 av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1116 return AVERROR_INVALIDDATA;
1118 if (sps->log2_ctb_size < 4) {
1121 "log2_ctb_size %d differs from the bounds of any known profile\n",
1122 sps->log2_ctb_size);
1123 avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1124 return AVERROR_INVALIDDATA;
1127 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1128 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1129 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1131 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1132 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1133 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1134 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1135 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1136 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1137 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1139 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1141 if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) ||
1142 av_mod_uintp2(sps->height, sps->log2_min_cb_size)) {
1143 av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1144 return AVERROR_INVALIDDATA;
1147 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1148 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1149 sps->max_transform_hierarchy_depth_inter);
1150 return AVERROR_INVALIDDATA;
1152 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1153 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1154 sps->max_transform_hierarchy_depth_intra);
1155 return AVERROR_INVALIDDATA;
1157 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1158 av_log(avctx, AV_LOG_ERROR,
1159 "max transform block size out of range: %d\n",
1160 sps->log2_max_trafo_size);
1161 return AVERROR_INVALIDDATA;
1164 if (get_bits_left(gb) < 0) {
1165 av_log(avctx, AV_LOG_ERROR,
1166 "Overread SPS by %d bits\n", -get_bits_left(gb));
1167 return AVERROR_INVALIDDATA;
1173 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1174 HEVCParamSets *ps, int apply_defdispwin)
1177 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
1178 unsigned int sps_id;
1182 return AVERROR(ENOMEM);
1183 sps = (HEVCSPS*)sps_buf->data;
1185 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1187 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1189 ps->vps_list, avctx);
1191 av_buffer_unref(&sps_buf);
1195 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1196 av_log(avctx, AV_LOG_DEBUG,
1197 "Parsed SPS: id %d; coded wxh: %dx%d; "
1198 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1199 sps_id, sps->width, sps->height,
1200 sps->output_width, sps->output_height,
1201 av_get_pix_fmt_name(sps->pix_fmt));
1204 /* check if this is a repeat of an already parsed SPS, then keep the
1206 * otherwise drop all PPSes that depend on it */
1207 if (ps->sps_list[sps_id] &&
1208 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1209 av_buffer_unref(&sps_buf);
1211 remove_sps(ps, sps_id);
1212 ps->sps_list[sps_id] = sps_buf;
1218 static void hevc_pps_free(void *opaque, uint8_t *data)
1220 HEVCPPS *pps = (HEVCPPS*)data;
1222 av_freep(&pps->column_width);
1223 av_freep(&pps->row_height);
1224 av_freep(&pps->col_bd);
1225 av_freep(&pps->row_bd);
1226 av_freep(&pps->col_idxX);
1227 av_freep(&pps->ctb_addr_rs_to_ts);
1228 av_freep(&pps->ctb_addr_ts_to_rs);
1229 av_freep(&pps->tile_pos_rs);
1230 av_freep(&pps->tile_id);
1231 av_freep(&pps->min_tb_addr_zs_tab);
1236 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1237 HEVCPPS *pps, HEVCSPS *sps) {
1240 if (pps->transform_skip_enabled_flag) {
1241 pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
1243 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1244 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1245 if (pps->chroma_qp_offset_list_enabled_flag) {
1246 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb);
1247 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb);
1248 if (pps->chroma_qp_offset_list_len_minus1 && pps->chroma_qp_offset_list_len_minus1 >= 5) {
1249 av_log(avctx, AV_LOG_ERROR,
1250 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1251 return AVERROR_INVALIDDATA;
1253 for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1254 pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
1255 if (pps->cb_qp_offset_list[i]) {
1256 av_log(avctx, AV_LOG_WARNING,
1257 "cb_qp_offset_list not tested yet.\n");
1259 pps->cr_qp_offset_list[i] = get_se_golomb_long(gb);
1260 if (pps->cr_qp_offset_list[i]) {
1261 av_log(avctx, AV_LOG_WARNING,
1262 "cb_qp_offset_list not tested yet.\n");
1266 pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb);
1267 pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb);
1272 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1273 HEVCPPS *pps, HEVCSPS *sps)
1276 int pic_area_in_ctbs;
1277 int i, j, x, y, ctb_addr_rs, tile_id;
1279 // Inferred parameters
1280 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1281 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1282 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1283 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1284 return AVERROR(ENOMEM);
1286 if (pps->uniform_spacing_flag) {
1287 if (!pps->column_width) {
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));
1291 if (!pps->column_width || !pps->row_height)
1292 return AVERROR(ENOMEM);
1294 for (i = 0; i < pps->num_tile_columns; i++) {
1295 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1296 (i * sps->ctb_width) / pps->num_tile_columns;
1299 for (i = 0; i < pps->num_tile_rows; i++) {
1300 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1301 (i * sps->ctb_height) / pps->num_tile_rows;
1306 for (i = 0; i < pps->num_tile_columns; i++)
1307 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1310 for (i = 0; i < pps->num_tile_rows; i++)
1311 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1313 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1314 if (i > pps->col_bd[j])
1316 pps->col_idxX[i] = j;
1322 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1324 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1325 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1326 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1327 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1328 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1329 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1330 return AVERROR(ENOMEM);
1333 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1334 int tb_x = ctb_addr_rs % sps->ctb_width;
1335 int tb_y = ctb_addr_rs / sps->ctb_width;
1340 for (i = 0; i < pps->num_tile_columns; i++) {
1341 if (tb_x < pps->col_bd[i + 1]) {
1347 for (i = 0; i < pps->num_tile_rows; i++) {
1348 if (tb_y < pps->row_bd[i + 1]) {
1354 for (i = 0; i < tile_x; i++)
1355 val += pps->row_height[tile_y] * pps->column_width[i];
1356 for (i = 0; i < tile_y; i++)
1357 val += sps->ctb_width * pps->row_height[i];
1359 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1360 tb_x - pps->col_bd[tile_x];
1362 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1363 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1366 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1367 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1368 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1369 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1370 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1372 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1373 if (!pps->tile_pos_rs)
1374 return AVERROR(ENOMEM);
1376 for (j = 0; j < pps->num_tile_rows; j++)
1377 for (i = 0; i < pps->num_tile_columns; i++)
1378 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1379 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1381 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1382 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1383 for (y = 0; y < sps->tb_mask+2; y++) {
1384 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1385 pps->min_tb_addr_zs_tab[y] = -1;
1387 for (y = 0; y < sps->tb_mask+1; y++) {
1388 for (x = 0; x < sps->tb_mask+1; x++) {
1389 int tb_x = x >> log2_diff;
1390 int tb_y = y >> log2_diff;
1391 int rs = sps->ctb_width * tb_y + tb_x;
1392 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1393 for (i = 0; i < log2_diff; i++) {
1395 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1397 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1404 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1407 HEVCSPS *sps = NULL;
1409 unsigned int pps_id = 0;
1411 AVBufferRef *pps_buf;
1412 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1415 return AVERROR(ENOMEM);
1417 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1418 hevc_pps_free, NULL, 0);
1421 return AVERROR(ENOMEM);
1424 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1427 pps->loop_filter_across_tiles_enabled_flag = 1;
1428 pps->num_tile_columns = 1;
1429 pps->num_tile_rows = 1;
1430 pps->uniform_spacing_flag = 1;
1431 pps->disable_dbf = 0;
1432 pps->beta_offset = 0;
1434 pps->log2_max_transform_skip_block_size = 2;
1437 pps_id = get_ue_golomb_long(gb);
1438 if (pps_id >= MAX_PPS_COUNT) {
1439 av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1440 ret = AVERROR_INVALIDDATA;
1443 pps->sps_id = get_ue_golomb_long(gb);
1444 if (pps->sps_id >= MAX_SPS_COUNT) {
1445 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1446 ret = AVERROR_INVALIDDATA;
1449 if (!ps->sps_list[pps->sps_id]) {
1450 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1451 ret = AVERROR_INVALIDDATA;
1454 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1456 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1457 pps->output_flag_present_flag = get_bits1(gb);
1458 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1460 pps->sign_data_hiding_flag = get_bits1(gb);
1462 pps->cabac_init_present_flag = get_bits1(gb);
1464 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1465 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1467 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1469 pps->constrained_intra_pred_flag = get_bits1(gb);
1470 pps->transform_skip_enabled_flag = get_bits1(gb);
1472 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1473 pps->diff_cu_qp_delta_depth = 0;
1474 if (pps->cu_qp_delta_enabled_flag)
1475 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1477 if (pps->diff_cu_qp_delta_depth < 0 ||
1478 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
1479 av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
1480 pps->diff_cu_qp_delta_depth);
1481 ret = AVERROR_INVALIDDATA;
1485 pps->cb_qp_offset = get_se_golomb(gb);
1486 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1487 av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1489 ret = AVERROR_INVALIDDATA;
1492 pps->cr_qp_offset = get_se_golomb(gb);
1493 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1494 av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1496 ret = AVERROR_INVALIDDATA;
1499 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1501 pps->weighted_pred_flag = get_bits1(gb);
1502 pps->weighted_bipred_flag = get_bits1(gb);
1504 pps->transquant_bypass_enable_flag = get_bits1(gb);
1505 pps->tiles_enabled_flag = get_bits1(gb);
1506 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1508 if (pps->tiles_enabled_flag) {
1509 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1510 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1511 if (pps->num_tile_columns <= 0 ||
1512 pps->num_tile_columns >= sps->width) {
1513 av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1514 pps->num_tile_columns - 1);
1515 ret = AVERROR_INVALIDDATA;
1518 if (pps->num_tile_rows <= 0 ||
1519 pps->num_tile_rows >= sps->height) {
1520 av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1521 pps->num_tile_rows - 1);
1522 ret = AVERROR_INVALIDDATA;
1526 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1527 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1528 if (!pps->column_width || !pps->row_height) {
1529 ret = AVERROR(ENOMEM);
1533 pps->uniform_spacing_flag = get_bits1(gb);
1534 if (!pps->uniform_spacing_flag) {
1536 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1537 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1538 sum += pps->column_width[i];
1540 if (sum >= sps->ctb_width) {
1541 av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1542 ret = AVERROR_INVALIDDATA;
1545 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1548 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1549 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1550 sum += pps->row_height[i];
1552 if (sum >= sps->ctb_height) {
1553 av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1554 ret = AVERROR_INVALIDDATA;
1557 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1559 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1562 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1564 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1565 if (pps->deblocking_filter_control_present_flag) {
1566 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1567 pps->disable_dbf = get_bits1(gb);
1568 if (!pps->disable_dbf) {
1569 pps->beta_offset = get_se_golomb(gb) * 2;
1570 pps->tc_offset = get_se_golomb(gb) * 2;
1571 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1572 av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1573 pps->beta_offset/2);
1574 ret = AVERROR_INVALIDDATA;
1577 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1578 av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1580 ret = AVERROR_INVALIDDATA;
1586 pps->scaling_list_data_present_flag = get_bits1(gb);
1587 if (pps->scaling_list_data_present_flag) {
1588 set_default_scaling_list_data(&pps->scaling_list);
1589 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
1593 pps->lists_modification_present_flag = get_bits1(gb);
1594 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1595 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1596 av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1597 pps->log2_parallel_merge_level - 2);
1598 ret = AVERROR_INVALIDDATA;
1602 pps->slice_header_extension_present_flag = get_bits1(gb);
1604 if (get_bits1(gb)) { // pps_extension_present_flag
1605 int pps_range_extensions_flag = get_bits1(gb);
1606 /* int pps_extension_7bits = */ get_bits(gb, 7);
1607 if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {
1608 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
1613 ret = setup_pps(avctx, gb, pps, sps);
1617 if (get_bits_left(gb) < 0) {
1618 av_log(avctx, AV_LOG_ERROR,
1619 "Overread PPS by %d bits\n", -get_bits_left(gb));
1623 remove_pps(ps, pps_id);
1624 ps->pps_list[pps_id] = pps_buf;
1629 av_buffer_unref(&pps_buf);