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];
140 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
142 delta_rps_sign = get_bits1(gb);
143 abs_delta_rps = get_ue_golomb_long(gb) + 1;
144 if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
145 av_log(avctx, AV_LOG_ERROR,
146 "Invalid value of abs_delta_rps: %d\n",
148 return AVERROR_INVALIDDATA;
150 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
151 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
152 int used = rps->used[k] = get_bits1(gb);
155 use_delta_flag = get_bits1(gb);
157 if (used || use_delta_flag) {
158 if (i < rps_ridx->num_delta_pocs)
159 delta_poc = delta_rps + rps_ridx->delta_poc[i];
161 delta_poc = delta_rps;
162 rps->delta_poc[k] = delta_poc;
171 rps->num_delta_pocs = k;
172 rps->num_negative_pics = k0;
173 // sort in increasing order (smallest first)
174 if (rps->num_delta_pocs != 0) {
176 for (i = 1; i < rps->num_delta_pocs; i++) {
177 delta_poc = rps->delta_poc[i];
179 for (k = i - 1; k >= 0; k--) {
180 tmp = rps->delta_poc[k];
181 if (delta_poc < tmp) {
182 rps->delta_poc[k + 1] = tmp;
183 rps->used[k + 1] = rps->used[k];
184 rps->delta_poc[k] = delta_poc;
190 if ((rps->num_negative_pics >> 1) != 0) {
192 k = rps->num_negative_pics - 1;
193 // flip the negative values to largest first
194 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
195 delta_poc = rps->delta_poc[i];
197 rps->delta_poc[i] = rps->delta_poc[k];
198 rps->used[i] = rps->used[k];
199 rps->delta_poc[k] = delta_poc;
205 unsigned int prev, nb_positive_pics;
206 rps->num_negative_pics = get_ue_golomb_long(gb);
207 nb_positive_pics = get_ue_golomb_long(gb);
209 if (rps->num_negative_pics >= MAX_REFS ||
210 nb_positive_pics >= MAX_REFS) {
211 av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
212 return AVERROR_INVALIDDATA;
215 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
216 if (rps->num_delta_pocs) {
218 for (i = 0; i < rps->num_negative_pics; i++) {
219 delta_poc = get_ue_golomb_long(gb) + 1;
221 rps->delta_poc[i] = prev;
222 rps->used[i] = get_bits1(gb);
225 for (i = 0; i < nb_positive_pics; i++) {
226 delta_poc = get_ue_golomb_long(gb) + 1;
228 rps->delta_poc[rps->num_negative_pics + i] = prev;
229 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
237 static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
242 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 16 + 16 + 12)
245 ptl->profile_space = get_bits(gb, 2);
246 ptl->tier_flag = get_bits1(gb);
247 ptl->profile_idc = get_bits(gb, 5);
248 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
249 av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
250 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
251 av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
252 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
253 av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
254 else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
255 av_log(avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n");
257 av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
259 for (i = 0; i < 32; i++)
260 ptl->profile_compatibility_flag[i] = get_bits1(gb);
261 ptl->progressive_source_flag = get_bits1(gb);
262 ptl->interlaced_source_flag = get_bits1(gb);
263 ptl->non_packed_constraint_flag = get_bits1(gb);
264 ptl->frame_only_constraint_flag = get_bits1(gb);
266 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
267 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
268 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
273 static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
274 PTL *ptl, int max_num_sub_layers)
277 if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 ||
278 get_bits_left(gb) < 8 + 8*2) {
279 av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
283 ptl->general_ptl.level_idc = get_bits(gb, 8);
285 for (i = 0; i < max_num_sub_layers - 1; i++) {
286 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
287 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
290 if (max_num_sub_layers - 1> 0)
291 for (i = max_num_sub_layers - 1; i < 8; i++)
292 skip_bits(gb, 2); // reserved_zero_2bits[i]
293 for (i = 0; i < max_num_sub_layers - 1; i++) {
294 if (ptl->sub_layer_profile_present_flag[i] &&
295 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
296 av_log(avctx, AV_LOG_ERROR,
297 "PTL information for sublayer %i too short\n", i);
300 if (ptl->sub_layer_level_present_flag[i]) {
301 if (get_bits_left(gb) < 8) {
302 av_log(avctx, AV_LOG_ERROR,
303 "Not enough data for sublayer %i level_idc\n", i);
306 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
313 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
314 int subpic_params_present)
318 for (i = 0; i < nb_cpb; i++) {
319 get_ue_golomb_long(gb); // bit_rate_value_minus1
320 get_ue_golomb_long(gb); // cpb_size_value_minus1
322 if (subpic_params_present) {
323 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
324 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
326 skip_bits1(gb); // cbr_flag
330 static int decode_hrd(GetBitContext *gb, int common_inf_present,
333 int nal_params_present = 0, vcl_params_present = 0;
334 int subpic_params_present = 0;
337 if (common_inf_present) {
338 nal_params_present = get_bits1(gb);
339 vcl_params_present = get_bits1(gb);
341 if (nal_params_present || vcl_params_present) {
342 subpic_params_present = get_bits1(gb);
344 if (subpic_params_present) {
345 skip_bits(gb, 8); // tick_divisor_minus2
346 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
347 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
348 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
351 skip_bits(gb, 4); // bit_rate_scale
352 skip_bits(gb, 4); // cpb_size_scale
354 if (subpic_params_present)
355 skip_bits(gb, 4); // cpb_size_du_scale
357 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
358 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
359 skip_bits(gb, 5); // dpb_output_delay_length_minus1
363 for (i = 0; i < max_sublayers; i++) {
365 unsigned int nb_cpb = 1;
366 int fixed_rate = get_bits1(gb);
369 fixed_rate = get_bits1(gb);
372 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
374 low_delay = get_bits1(gb);
377 nb_cpb = get_ue_golomb_long(gb) + 1;
378 if (nb_cpb < 1 || nb_cpb > 32) {
379 av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb);
380 return AVERROR_INVALIDDATA;
384 if (nal_params_present)
385 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
386 if (vcl_params_present)
387 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
392 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
398 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
401 return AVERROR(ENOMEM);
402 vps = (HEVCVPS*)vps_buf->data;
404 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
406 vps_id = get_bits(gb, 4);
407 if (vps_id >= MAX_VPS_COUNT) {
408 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
412 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
413 av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
417 vps->vps_max_layers = get_bits(gb, 6) + 1;
418 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
419 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
421 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
422 av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
426 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
427 av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
428 vps->vps_max_sub_layers);
432 if (parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers) < 0)
435 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
437 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
438 for (; i < vps->vps_max_sub_layers; i++) {
439 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
440 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
441 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
443 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
444 av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
445 vps->vps_max_dec_pic_buffering[i] - 1);
448 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
449 av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
450 vps->vps_num_reorder_pics[i]);
451 if (avctx->err_recognition & AV_EF_EXPLODE)
456 vps->vps_max_layer_id = get_bits(gb, 6);
457 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
458 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
459 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
460 av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
464 for (i = 1; i < vps->vps_num_layer_sets; i++)
465 for (j = 0; j <= vps->vps_max_layer_id; j++)
466 skip_bits(gb, 1); // layer_id_included_flag[i][j]
468 vps->vps_timing_info_present_flag = get_bits1(gb);
469 if (vps->vps_timing_info_present_flag) {
470 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
471 vps->vps_time_scale = get_bits_long(gb, 32);
472 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
473 if (vps->vps_poc_proportional_to_timing_flag)
474 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
475 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
476 if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) {
477 av_log(avctx, AV_LOG_ERROR,
478 "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
481 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
482 int common_inf_present = 1;
484 get_ue_golomb_long(gb); // hrd_layer_set_idx
486 common_inf_present = get_bits1(gb);
487 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
490 get_bits1(gb); /* vps_extension_flag */
492 if (get_bits_left(gb) < 0) {
493 av_log(avctx, AV_LOG_ERROR,
494 "Overread VPS by %d bits\n", -get_bits_left(gb));
495 if (ps->vps_list[vps_id])
499 if (ps->vps_list[vps_id] &&
500 !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
501 av_buffer_unref(&vps_buf);
503 remove_vps(ps, vps_id);
504 ps->vps_list[vps_id] = vps_buf;
510 av_buffer_unref(&vps_buf);
511 return AVERROR_INVALIDDATA;
514 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
515 int apply_defdispwin, HEVCSPS *sps)
517 VUI *vui = &sps->vui;
518 GetBitContext backup;
519 int sar_present, alt = 0;
521 av_log(avctx, AV_LOG_DEBUG, "Decoding VUI\n");
523 sar_present = get_bits1(gb);
525 uint8_t sar_idx = get_bits(gb, 8);
526 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
527 vui->sar = vui_sar[sar_idx];
528 else if (sar_idx == 255) {
529 vui->sar.num = get_bits(gb, 16);
530 vui->sar.den = get_bits(gb, 16);
532 av_log(avctx, AV_LOG_WARNING,
533 "Unknown SAR index: %u.\n", sar_idx);
536 vui->overscan_info_present_flag = get_bits1(gb);
537 if (vui->overscan_info_present_flag)
538 vui->overscan_appropriate_flag = get_bits1(gb);
540 vui->video_signal_type_present_flag = get_bits1(gb);
541 if (vui->video_signal_type_present_flag) {
542 vui->video_format = get_bits(gb, 3);
543 vui->video_full_range_flag = get_bits1(gb);
544 vui->colour_description_present_flag = get_bits1(gb);
545 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
546 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
547 if (vui->colour_description_present_flag) {
548 vui->colour_primaries = get_bits(gb, 8);
549 vui->transfer_characteristic = get_bits(gb, 8);
550 vui->matrix_coeffs = get_bits(gb, 8);
552 // Set invalid values to "unspecified"
553 if (vui->colour_primaries >= AVCOL_PRI_NB)
554 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
555 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
556 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
557 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
558 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
562 vui->chroma_loc_info_present_flag = get_bits1(gb);
563 if (vui->chroma_loc_info_present_flag) {
564 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
565 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
568 vui->neutra_chroma_indication_flag = get_bits1(gb);
569 vui->field_seq_flag = get_bits1(gb);
570 vui->frame_field_info_present_flag = get_bits1(gb);
572 if (get_bits_left(gb) >= 68 && show_bits_long(gb, 21) == 0x100000) {
573 vui->default_display_window_flag = 0;
574 av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
576 vui->default_display_window_flag = get_bits1(gb);
577 // Backup context in case an alternate header is detected
578 memcpy(&backup, gb, sizeof(backup));
580 if (vui->default_display_window_flag) {
581 //TODO: * 2 is only valid for 420
582 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
583 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
584 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
585 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
587 if (apply_defdispwin &&
588 avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
589 av_log(avctx, AV_LOG_DEBUG,
590 "discarding vui default display window, "
591 "original values are l:%u r:%u t:%u b:%u\n",
592 vui->def_disp_win.left_offset,
593 vui->def_disp_win.right_offset,
594 vui->def_disp_win.top_offset,
595 vui->def_disp_win.bottom_offset);
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 = 0;
604 vui->vui_timing_info_present_flag = get_bits1(gb);
606 if (vui->vui_timing_info_present_flag) {
607 if( get_bits_left(gb) < 66) {
608 // The alternate syntax seem to have timing info located
609 // at where def_disp_win is normally located
610 av_log(avctx, AV_LOG_WARNING,
611 "Strange VUI timing information, retrying...\n");
612 vui->default_display_window_flag = 0;
613 memset(&vui->def_disp_win, 0, sizeof(vui->def_disp_win));
614 memcpy(gb, &backup, sizeof(backup));
617 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
618 vui->vui_time_scale = get_bits_long(gb, 32);
620 av_log(avctx, AV_LOG_INFO, "Retry got %i/%i fps\n",
621 vui->vui_time_scale, vui->vui_num_units_in_tick);
623 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
624 if (vui->vui_poc_proportional_to_timing_flag)
625 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
626 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
627 if (vui->vui_hrd_parameters_present_flag)
628 decode_hrd(gb, 1, sps->max_sub_layers);
631 vui->bitstream_restriction_flag = get_bits1(gb);
632 if (vui->bitstream_restriction_flag) {
633 vui->tiles_fixed_structure_flag = get_bits1(gb);
634 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
635 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
636 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
637 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
638 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
639 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
640 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
644 static void set_default_scaling_list_data(ScalingList *sl)
648 for (matrixId = 0; matrixId < 6; matrixId++) {
650 memset(sl->sl[0][matrixId], 16, 16);
651 sl->sl_dc[0][matrixId] = 16; // default for 16x16
652 sl->sl_dc[1][matrixId] = 16; // default for 32x32
654 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
655 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
656 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
657 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
658 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
659 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
660 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
661 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
662 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
663 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
664 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
665 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
666 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
667 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
668 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
669 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
670 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
671 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
674 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl, HEVCSPS *sps)
676 uint8_t scaling_list_pred_mode_flag;
677 int32_t scaling_list_dc_coef[2][6];
678 int size_id, matrix_id, pos;
681 for (size_id = 0; size_id < 4; size_id++)
682 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
683 scaling_list_pred_mode_flag = get_bits1(gb);
684 if (!scaling_list_pred_mode_flag) {
685 unsigned int delta = get_ue_golomb_long(gb);
686 /* Only need to handle non-zero delta. Zero means default,
687 * which should already be in the arrays. */
689 // Copy from previous array.
690 if (matrix_id < delta) {
691 av_log(avctx, AV_LOG_ERROR,
692 "Invalid delta in scaling list data: %d.\n", delta);
693 return AVERROR_INVALIDDATA;
696 memcpy(sl->sl[size_id][matrix_id],
697 sl->sl[size_id][matrix_id - delta],
698 size_id > 0 ? 64 : 16);
700 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
703 int next_coef, coef_num;
704 int32_t scaling_list_delta_coef;
707 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
709 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
710 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
711 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
713 for (i = 0; i < coef_num; i++) {
715 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
716 ff_hevc_diag_scan4x4_x[i];
718 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
719 ff_hevc_diag_scan8x8_x[i];
721 scaling_list_delta_coef = get_se_golomb(gb);
722 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
723 sl->sl[size_id][matrix_id][pos] = next_coef;
728 if (sps->chroma_format_idc == 3) {
729 for (i = 0; i < 64; i++) {
730 sl->sl[3][1][i] = sl->sl[2][1][i];
731 sl->sl[3][2][i] = sl->sl[2][2][i];
732 sl->sl[3][4][i] = sl->sl[2][4][i];
733 sl->sl[3][5][i] = sl->sl[2][5][i];
735 sl->sl_dc[1][1] = sl->sl_dc[0][1];
736 sl->sl_dc[1][2] = sl->sl_dc[0][2];
737 sl->sl_dc[1][4] = sl->sl_dc[0][4];
738 sl->sl_dc[1][5] = sl->sl_dc[0][5];
745 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
747 const AVPixFmtDescriptor *desc;
748 switch (sps->bit_depth) {
750 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
751 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
752 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
753 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
756 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
757 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
758 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
759 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
762 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
763 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
764 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
765 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
768 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY16;
769 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
770 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
771 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
774 av_log(avctx, AV_LOG_ERROR,
775 "4:2:0, 4:2:2, 4:4:4 supports are currently specified for 8, 10 and 12 bits.\n");
776 av_log(avctx, AV_LOG_ERROR,
777 "chroma_format_idc is %d",
778 sps->chroma_format_idc);
779 return AVERROR_INVALIDDATA;
782 desc = av_pix_fmt_desc_get(sps->pix_fmt);
784 return AVERROR(EINVAL);
786 sps->hshift[0] = sps->vshift[0] = 0;
787 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
788 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
790 sps->pixel_shift = sps->bit_depth > 8;
795 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
796 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
799 int log2_diff_max_min_transform_block_size;
800 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
805 sps->vps_id = get_bits(gb, 4);
806 if (sps->vps_id >= MAX_VPS_COUNT) {
807 av_log(avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
808 return AVERROR_INVALIDDATA;
811 if (vps_list && !vps_list[sps->vps_id]) {
812 av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
814 return AVERROR_INVALIDDATA;
817 sps->max_sub_layers = get_bits(gb, 3) + 1;
818 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
819 av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
820 sps->max_sub_layers);
821 return AVERROR_INVALIDDATA;
824 skip_bits1(gb); // temporal_id_nesting_flag
826 if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0)
829 *sps_id = get_ue_golomb_long(gb);
830 if (*sps_id >= MAX_SPS_COUNT) {
831 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
832 return AVERROR_INVALIDDATA;
835 sps->chroma_format_idc = get_ue_golomb_long(gb);
837 if (sps->chroma_format_idc == 3)
838 sps->separate_colour_plane_flag = get_bits1(gb);
840 if (sps->separate_colour_plane_flag)
841 sps->chroma_format_idc = 0;
843 sps->width = get_ue_golomb_long(gb);
844 sps->height = get_ue_golomb_long(gb);
845 if ((ret = av_image_check_size(sps->width,
846 sps->height, 0, avctx)) < 0)
849 if (get_bits1(gb)) { // pic_conformance_flag
850 //TODO: * 2 is only valid for 420
851 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
852 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
853 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
854 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
856 if (avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
857 av_log(avctx, AV_LOG_DEBUG,
858 "discarding sps conformance window, "
859 "original values are l:%u r:%u t:%u b:%u\n",
860 sps->pic_conf_win.left_offset,
861 sps->pic_conf_win.right_offset,
862 sps->pic_conf_win.top_offset,
863 sps->pic_conf_win.bottom_offset);
865 sps->pic_conf_win.left_offset =
866 sps->pic_conf_win.right_offset =
867 sps->pic_conf_win.top_offset =
868 sps->pic_conf_win.bottom_offset = 0;
870 sps->output_window = sps->pic_conf_win;
873 sps->bit_depth = get_ue_golomb_long(gb) + 8;
874 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
875 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
876 av_log(avctx, AV_LOG_ERROR,
877 "Luma bit depth (%d) is different from chroma bit depth (%d), "
878 "this is unsupported.\n",
879 sps->bit_depth, bit_depth_chroma);
880 return AVERROR_INVALIDDATA;
883 ret = map_pixel_format(avctx, sps);
887 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
888 if (sps->log2_max_poc_lsb > 16) {
889 av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
890 sps->log2_max_poc_lsb - 4);
891 return AVERROR_INVALIDDATA;
894 sublayer_ordering_info = get_bits1(gb);
895 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
896 for (i = start; i < sps->max_sub_layers; i++) {
897 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
898 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
899 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
900 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
901 av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
902 sps->temporal_layer[i].max_dec_pic_buffering - 1);
903 return AVERROR_INVALIDDATA;
905 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
906 av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
907 sps->temporal_layer[i].num_reorder_pics);
908 if (avctx->err_recognition & AV_EF_EXPLODE ||
909 sps->temporal_layer[i].num_reorder_pics > MAX_DPB_SIZE - 1) {
910 return AVERROR_INVALIDDATA;
912 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
916 if (!sublayer_ordering_info) {
917 for (i = 0; i < start; i++) {
918 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
919 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
920 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
924 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
925 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
926 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
927 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
928 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
929 sps->log2_min_tb_size;
931 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
932 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
933 return AVERROR_INVALIDDATA;
936 if (sps->log2_diff_max_min_coding_block_size > 30) {
937 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);
938 return AVERROR_INVALIDDATA;
941 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
942 av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
943 return AVERROR_INVALIDDATA;
946 if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
947 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
948 return AVERROR_INVALIDDATA;
951 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
952 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
954 sps->scaling_list_enable_flag = get_bits1(gb);
955 if (sps->scaling_list_enable_flag) {
956 set_default_scaling_list_data(&sps->scaling_list);
959 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
965 sps->amp_enabled_flag = get_bits1(gb);
966 sps->sao_enabled = get_bits1(gb);
968 sps->pcm_enabled_flag = get_bits1(gb);
969 if (sps->pcm_enabled_flag) {
970 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
971 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
972 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
973 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
974 get_ue_golomb_long(gb);
975 if (sps->pcm.bit_depth > sps->bit_depth) {
976 av_log(avctx, AV_LOG_ERROR,
977 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
978 sps->pcm.bit_depth, sps->bit_depth);
979 return AVERROR_INVALIDDATA;
982 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
985 sps->nb_st_rps = get_ue_golomb_long(gb);
986 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
987 av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
989 return AVERROR_INVALIDDATA;
991 for (i = 0; i < sps->nb_st_rps; i++) {
992 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
997 sps->long_term_ref_pics_present_flag = get_bits1(gb);
998 if (sps->long_term_ref_pics_present_flag) {
999 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1000 if (sps->num_long_term_ref_pics_sps > 31U) {
1001 av_log(avctx, AV_LOG_ERROR, "num_long_term_ref_pics_sps %d is out of range.\n",
1002 sps->num_long_term_ref_pics_sps);
1003 return AVERROR_INVALIDDATA;
1005 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1006 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1007 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
1011 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
1012 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
1013 sps->vui.sar = (AVRational){0, 1};
1014 vui_present = get_bits1(gb);
1016 decode_vui(gb, avctx, apply_defdispwin, sps);
1018 if (get_bits1(gb)) { // sps_extension_flag
1019 int sps_extension_flag[1];
1020 for (i = 0; i < 1; i++)
1021 sps_extension_flag[i] = get_bits1(gb);
1022 skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
1023 if (sps_extension_flag[0]) {
1024 int extended_precision_processing_flag;
1025 int high_precision_offsets_enabled_flag;
1026 int cabac_bypass_alignment_enabled_flag;
1028 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
1029 sps->transform_skip_context_enabled_flag = get_bits1(gb);
1030 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
1032 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
1034 extended_precision_processing_flag = get_bits1(gb);
1035 if (extended_precision_processing_flag)
1036 av_log(avctx, AV_LOG_WARNING,
1037 "extended_precision_processing_flag not yet implemented\n");
1039 sps->intra_smoothing_disabled_flag = get_bits1(gb);
1040 high_precision_offsets_enabled_flag = get_bits1(gb);
1041 if (high_precision_offsets_enabled_flag)
1042 av_log(avctx, AV_LOG_WARNING,
1043 "high_precision_offsets_enabled_flag not yet implemented\n");
1045 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
1047 cabac_bypass_alignment_enabled_flag = get_bits1(gb);
1048 if (cabac_bypass_alignment_enabled_flag)
1049 av_log(avctx, AV_LOG_WARNING,
1050 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1053 if (apply_defdispwin) {
1054 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1055 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1056 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1057 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1059 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
1060 !(avctx->flags & CODEC_FLAG_UNALIGNED)) {
1061 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
1062 av_log(avctx, AV_LOG_WARNING, "Reducing left output window to %d "
1063 "chroma samples to preserve alignment.\n",
1064 sps->output_window.left_offset);
1066 sps->output_width = sps->width -
1067 (sps->output_window.left_offset + sps->output_window.right_offset);
1068 sps->output_height = sps->height -
1069 (sps->output_window.top_offset + sps->output_window.bottom_offset);
1070 if (sps->width <= sps->output_window.left_offset + (int64_t)sps->output_window.right_offset ||
1071 sps->height <= sps->output_window.top_offset + (int64_t)sps->output_window.bottom_offset) {
1072 av_log(avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
1073 sps->output_width, sps->output_height);
1074 if (avctx->err_recognition & AV_EF_EXPLODE) {
1075 return AVERROR_INVALIDDATA;
1077 av_log(avctx, AV_LOG_WARNING,
1078 "Displaying the whole video surface.\n");
1079 memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1080 memset(&sps->output_window, 0, sizeof(sps->output_window));
1081 sps->output_width = sps->width;
1082 sps->output_height = sps->height;
1085 // Inferred parameters
1086 sps->log2_ctb_size = sps->log2_min_cb_size +
1087 sps->log2_diff_max_min_coding_block_size;
1088 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1090 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
1091 av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1092 return AVERROR_INVALIDDATA;
1094 if (sps->log2_ctb_size < 4) {
1097 "log2_ctb_size %d differs from the bounds of any known profile\n",
1098 sps->log2_ctb_size);
1099 avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1100 return AVERROR_INVALIDDATA;
1103 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1104 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1105 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1107 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1108 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1109 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1110 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1111 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1112 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1113 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1115 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1117 if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) ||
1118 av_mod_uintp2(sps->height, sps->log2_min_cb_size)) {
1119 av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1120 return AVERROR_INVALIDDATA;
1123 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1124 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1125 sps->max_transform_hierarchy_depth_inter);
1126 return AVERROR_INVALIDDATA;
1128 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1129 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1130 sps->max_transform_hierarchy_depth_intra);
1131 return AVERROR_INVALIDDATA;
1133 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1134 av_log(avctx, AV_LOG_ERROR,
1135 "max transform block size out of range: %d\n",
1136 sps->log2_max_trafo_size);
1137 return AVERROR_INVALIDDATA;
1140 if (get_bits_left(gb) < 0) {
1141 av_log(avctx, AV_LOG_ERROR,
1142 "Overread SPS by %d bits\n", -get_bits_left(gb));
1143 return AVERROR_INVALIDDATA;
1149 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1150 HEVCParamSets *ps, int apply_defdispwin)
1153 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
1154 unsigned int sps_id;
1158 return AVERROR(ENOMEM);
1159 sps = (HEVCSPS*)sps_buf->data;
1161 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1163 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1165 ps->vps_list, avctx);
1167 av_buffer_unref(&sps_buf);
1171 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1172 av_log(avctx, AV_LOG_DEBUG,
1173 "Parsed SPS: id %d; coded wxh: %dx%d; "
1174 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1175 sps_id, sps->width, sps->height,
1176 sps->output_width, sps->output_height,
1177 av_get_pix_fmt_name(sps->pix_fmt));
1180 /* check if this is a repeat of an already parsed SPS, then keep the
1182 * otherwise drop all PPSes that depend on it */
1183 if (ps->sps_list[sps_id] &&
1184 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1185 av_buffer_unref(&sps_buf);
1187 remove_sps(ps, sps_id);
1188 ps->sps_list[sps_id] = sps_buf;
1194 static void hevc_pps_free(void *opaque, uint8_t *data)
1196 HEVCPPS *pps = (HEVCPPS*)data;
1198 av_freep(&pps->column_width);
1199 av_freep(&pps->row_height);
1200 av_freep(&pps->col_bd);
1201 av_freep(&pps->row_bd);
1202 av_freep(&pps->col_idxX);
1203 av_freep(&pps->ctb_addr_rs_to_ts);
1204 av_freep(&pps->ctb_addr_ts_to_rs);
1205 av_freep(&pps->tile_pos_rs);
1206 av_freep(&pps->tile_id);
1207 av_freep(&pps->min_tb_addr_zs_tab);
1212 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1213 HEVCPPS *pps, HEVCSPS *sps) {
1216 if (pps->transform_skip_enabled_flag) {
1217 pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
1219 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1220 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1221 if (pps->chroma_qp_offset_list_enabled_flag) {
1222 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb);
1223 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb);
1224 if (pps->chroma_qp_offset_list_len_minus1 && pps->chroma_qp_offset_list_len_minus1 >= 5) {
1225 av_log(avctx, AV_LOG_ERROR,
1226 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1227 return AVERROR_INVALIDDATA;
1229 for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1230 pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
1231 if (pps->cb_qp_offset_list[i]) {
1232 av_log(avctx, AV_LOG_WARNING,
1233 "cb_qp_offset_list not tested yet.\n");
1235 pps->cr_qp_offset_list[i] = get_se_golomb_long(gb);
1236 if (pps->cr_qp_offset_list[i]) {
1237 av_log(avctx, AV_LOG_WARNING,
1238 "cb_qp_offset_list not tested yet.\n");
1242 pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb);
1243 pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb);
1248 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1249 HEVCPPS *pps, HEVCSPS *sps)
1252 int pic_area_in_ctbs;
1253 int i, j, x, y, ctb_addr_rs, tile_id;
1255 // Inferred parameters
1256 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1257 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1258 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1259 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1260 return AVERROR(ENOMEM);
1262 if (pps->uniform_spacing_flag) {
1263 if (!pps->column_width) {
1264 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1265 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1267 if (!pps->column_width || !pps->row_height)
1268 return AVERROR(ENOMEM);
1270 for (i = 0; i < pps->num_tile_columns; i++) {
1271 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1272 (i * sps->ctb_width) / pps->num_tile_columns;
1275 for (i = 0; i < pps->num_tile_rows; i++) {
1276 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1277 (i * sps->ctb_height) / pps->num_tile_rows;
1282 for (i = 0; i < pps->num_tile_columns; i++)
1283 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1286 for (i = 0; i < pps->num_tile_rows; i++)
1287 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1289 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1290 if (i > pps->col_bd[j])
1292 pps->col_idxX[i] = j;
1298 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1300 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1301 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1302 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1303 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1304 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1305 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1306 return AVERROR(ENOMEM);
1309 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1310 int tb_x = ctb_addr_rs % sps->ctb_width;
1311 int tb_y = ctb_addr_rs / sps->ctb_width;
1316 for (i = 0; i < pps->num_tile_columns; i++) {
1317 if (tb_x < pps->col_bd[i + 1]) {
1323 for (i = 0; i < pps->num_tile_rows; i++) {
1324 if (tb_y < pps->row_bd[i + 1]) {
1330 for (i = 0; i < tile_x; i++)
1331 val += pps->row_height[tile_y] * pps->column_width[i];
1332 for (i = 0; i < tile_y; i++)
1333 val += sps->ctb_width * pps->row_height[i];
1335 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1336 tb_x - pps->col_bd[tile_x];
1338 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1339 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1342 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1343 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1344 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1345 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1346 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1348 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1349 if (!pps->tile_pos_rs)
1350 return AVERROR(ENOMEM);
1352 for (j = 0; j < pps->num_tile_rows; j++)
1353 for (i = 0; i < pps->num_tile_columns; i++)
1354 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1355 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1357 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1358 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1359 for (y = 0; y < sps->tb_mask+2; y++) {
1360 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1361 pps->min_tb_addr_zs_tab[y] = -1;
1363 for (y = 0; y < sps->tb_mask+1; y++) {
1364 for (x = 0; x < sps->tb_mask+1; x++) {
1365 int tb_x = x >> log2_diff;
1366 int tb_y = y >> log2_diff;
1367 int rs = sps->ctb_width * tb_y + tb_x;
1368 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1369 for (i = 0; i < log2_diff; i++) {
1371 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1373 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1380 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1383 HEVCSPS *sps = NULL;
1385 unsigned int pps_id = 0;
1387 AVBufferRef *pps_buf;
1388 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1391 return AVERROR(ENOMEM);
1393 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1394 hevc_pps_free, NULL, 0);
1397 return AVERROR(ENOMEM);
1400 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1403 pps->loop_filter_across_tiles_enabled_flag = 1;
1404 pps->num_tile_columns = 1;
1405 pps->num_tile_rows = 1;
1406 pps->uniform_spacing_flag = 1;
1407 pps->disable_dbf = 0;
1408 pps->beta_offset = 0;
1410 pps->log2_max_transform_skip_block_size = 2;
1413 pps_id = get_ue_golomb_long(gb);
1414 if (pps_id >= MAX_PPS_COUNT) {
1415 av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1416 ret = AVERROR_INVALIDDATA;
1419 pps->sps_id = get_ue_golomb_long(gb);
1420 if (pps->sps_id >= MAX_SPS_COUNT) {
1421 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1422 ret = AVERROR_INVALIDDATA;
1425 if (!ps->sps_list[pps->sps_id]) {
1426 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1427 ret = AVERROR_INVALIDDATA;
1430 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1432 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1433 pps->output_flag_present_flag = get_bits1(gb);
1434 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1436 pps->sign_data_hiding_flag = get_bits1(gb);
1438 pps->cabac_init_present_flag = get_bits1(gb);
1440 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1441 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1443 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1445 pps->constrained_intra_pred_flag = get_bits1(gb);
1446 pps->transform_skip_enabled_flag = get_bits1(gb);
1448 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1449 pps->diff_cu_qp_delta_depth = 0;
1450 if (pps->cu_qp_delta_enabled_flag)
1451 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1453 if (pps->diff_cu_qp_delta_depth < 0 ||
1454 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
1455 av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
1456 pps->diff_cu_qp_delta_depth);
1457 ret = AVERROR_INVALIDDATA;
1461 pps->cb_qp_offset = get_se_golomb(gb);
1462 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1463 av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1465 ret = AVERROR_INVALIDDATA;
1468 pps->cr_qp_offset = get_se_golomb(gb);
1469 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1470 av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1472 ret = AVERROR_INVALIDDATA;
1475 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1477 pps->weighted_pred_flag = get_bits1(gb);
1478 pps->weighted_bipred_flag = get_bits1(gb);
1480 pps->transquant_bypass_enable_flag = get_bits1(gb);
1481 pps->tiles_enabled_flag = get_bits1(gb);
1482 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1484 if (pps->tiles_enabled_flag) {
1485 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1486 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1487 if (pps->num_tile_columns <= 0 ||
1488 pps->num_tile_columns >= sps->width) {
1489 av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1490 pps->num_tile_columns - 1);
1491 ret = AVERROR_INVALIDDATA;
1494 if (pps->num_tile_rows <= 0 ||
1495 pps->num_tile_rows >= sps->height) {
1496 av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1497 pps->num_tile_rows - 1);
1498 ret = AVERROR_INVALIDDATA;
1502 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1503 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1504 if (!pps->column_width || !pps->row_height) {
1505 ret = AVERROR(ENOMEM);
1509 pps->uniform_spacing_flag = get_bits1(gb);
1510 if (!pps->uniform_spacing_flag) {
1512 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1513 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1514 sum += pps->column_width[i];
1516 if (sum >= sps->ctb_width) {
1517 av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1518 ret = AVERROR_INVALIDDATA;
1521 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1524 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1525 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1526 sum += pps->row_height[i];
1528 if (sum >= sps->ctb_height) {
1529 av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1530 ret = AVERROR_INVALIDDATA;
1533 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1535 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1538 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1540 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1541 if (pps->deblocking_filter_control_present_flag) {
1542 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1543 pps->disable_dbf = get_bits1(gb);
1544 if (!pps->disable_dbf) {
1545 pps->beta_offset = get_se_golomb(gb) * 2;
1546 pps->tc_offset = get_se_golomb(gb) * 2;
1547 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1548 av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1549 pps->beta_offset/2);
1550 ret = AVERROR_INVALIDDATA;
1553 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1554 av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1556 ret = AVERROR_INVALIDDATA;
1562 pps->scaling_list_data_present_flag = get_bits1(gb);
1563 if (pps->scaling_list_data_present_flag) {
1564 set_default_scaling_list_data(&pps->scaling_list);
1565 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
1569 pps->lists_modification_present_flag = get_bits1(gb);
1570 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1571 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1572 av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1573 pps->log2_parallel_merge_level - 2);
1574 ret = AVERROR_INVALIDDATA;
1578 pps->slice_header_extension_present_flag = get_bits1(gb);
1580 if (get_bits1(gb)) { // pps_extension_present_flag
1581 int pps_range_extensions_flag = get_bits1(gb);
1582 /* int pps_extension_7bits = */ get_bits(gb, 7);
1583 if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps_range_extensions_flag) {
1584 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
1589 ret = setup_pps(avctx, gb, pps, sps);
1593 if (get_bits_left(gb) < 0) {
1594 av_log(avctx, AV_LOG_ERROR,
1595 "Overread PPS by %d bits\n", -get_bits_left(gb));
1599 remove_pps(ps, pps_id);
1600 ps->pps_list[pps_id] = pps_buf;
1605 av_buffer_unref(&pps_buf);