2 * HEVC Parameter Set decoding
4 * Copyright (C) 2012 - 2103 Guillaume Martres
5 * Copyright (C) 2012 - 2103 Mickael Raulet
6 * Copyright (C) 2012 - 2013 Gildas Cocherel
7 * Copyright (C) 2013 Vittorio Giovara
9 * This file is part of Libav.
11 * Libav is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * Libav is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with Libav; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 #include "libavutil/imgutils.h"
31 static const uint8_t default_scaling_list_intra[] = {
32 16, 16, 16, 16, 17, 18, 21, 24,
33 16, 16, 16, 16, 17, 19, 22, 25,
34 16, 16, 17, 18, 20, 22, 25, 29,
35 16, 16, 18, 21, 24, 27, 31, 36,
36 17, 17, 20, 24, 30, 35, 41, 47,
37 18, 19, 22, 27, 35, 44, 54, 65,
38 21, 22, 25, 31, 41, 54, 70, 88,
39 24, 25, 29, 36, 47, 65, 88, 115
42 static const uint8_t default_scaling_list_inter[] = {
43 16, 16, 16, 16, 17, 18, 20, 24,
44 16, 16, 16, 17, 18, 20, 24, 25,
45 16, 16, 17, 18, 20, 24, 25, 28,
46 16, 17, 18, 20, 24, 25, 28, 33,
47 17, 18, 20, 24, 25, 28, 33, 41,
48 18, 20, 24, 25, 28, 33, 41, 54,
49 20, 24, 25, 28, 33, 41, 54, 71,
50 24, 25, 28, 33, 41, 54, 71, 91
53 static const AVRational vui_sar[] = {
73 int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
74 const HEVCSPS *sps, int is_slice_header)
76 HEVCLocalContext *lc = &s->HEVClc;
77 uint8_t rps_predict = 0;
84 GetBitContext *gb = &lc->gb;
86 if (rps != sps->st_rps && sps->nb_st_rps)
87 rps_predict = get_bits1(gb);
90 const ShortTermRPS *rps_ridx;
91 int delta_rps, abs_delta_rps;
92 uint8_t use_delta_flag = 0;
93 uint8_t delta_rps_sign;
95 if (is_slice_header) {
96 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
97 if (delta_idx > sps->nb_st_rps) {
98 av_log(s->avctx, AV_LOG_ERROR,
99 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
100 delta_idx, sps->nb_st_rps);
101 return AVERROR_INVALIDDATA;
103 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
105 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
107 delta_rps_sign = get_bits1(gb);
108 abs_delta_rps = get_ue_golomb_long(gb) + 1;
109 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
110 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
111 int used = rps->used[k] = get_bits1(gb);
114 use_delta_flag = get_bits1(gb);
116 if (used || use_delta_flag) {
117 if (i < rps_ridx->num_delta_pocs)
118 delta_poc = delta_rps + rps_ridx->delta_poc[i];
120 delta_poc = delta_rps;
121 rps->delta_poc[k] = delta_poc;
130 rps->num_delta_pocs = k;
131 rps->num_negative_pics = k0;
132 // sort in increasing order (smallest first)
133 if (rps->num_delta_pocs != 0) {
135 for (i = 1; i < rps->num_delta_pocs; i++) {
136 delta_poc = rps->delta_poc[i];
138 for (k = i - 1; k >= 0; k--) {
139 tmp = rps->delta_poc[k];
140 if (delta_poc < tmp) {
141 rps->delta_poc[k + 1] = tmp;
142 rps->used[k + 1] = rps->used[k];
143 rps->delta_poc[k] = delta_poc;
149 if ((rps->num_negative_pics >> 1) != 0) {
151 k = rps->num_negative_pics - 1;
152 // flip the negative values to largest first
153 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
154 delta_poc = rps->delta_poc[i];
156 rps->delta_poc[i] = rps->delta_poc[k];
157 rps->used[i] = rps->used[k];
158 rps->delta_poc[k] = delta_poc;
164 unsigned int prev, nb_positive_pics;
165 rps->num_negative_pics = get_ue_golomb_long(gb);
166 nb_positive_pics = get_ue_golomb_long(gb);
168 if (rps->num_negative_pics >= MAX_REFS ||
169 nb_positive_pics >= MAX_REFS) {
170 av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
171 return AVERROR_INVALIDDATA;
174 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
175 if (rps->num_delta_pocs) {
177 for (i = 0; i < rps->num_negative_pics; i++) {
178 delta_poc = get_ue_golomb_long(gb) + 1;
180 rps->delta_poc[i] = prev;
181 rps->used[i] = get_bits1(gb);
184 for (i = 0; i < nb_positive_pics; i++) {
185 delta_poc = get_ue_golomb_long(gb) + 1;
187 rps->delta_poc[rps->num_negative_pics + i] = prev;
188 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
196 static void decode_profile_tier_level(HEVCContext *s, PTLCommon *ptl)
199 GetBitContext *gb = &s->HEVClc.gb;
201 ptl->profile_space = get_bits(gb, 2);
202 ptl->tier_flag = get_bits1(gb);
203 ptl->profile_idc = get_bits(gb, 5);
204 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
205 av_log(s->avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
206 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
207 av_log(s->avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
208 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
209 av_log(s->avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
211 av_log(s->avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
213 for (i = 0; i < 32; i++)
214 ptl->profile_compatibility_flag[i] = get_bits1(gb);
215 ptl->progressive_source_flag = get_bits1(gb);
216 ptl->interlaced_source_flag = get_bits1(gb);
217 ptl->non_packed_constraint_flag = get_bits1(gb);
218 ptl->frame_only_constraint_flag = get_bits1(gb);
220 skip_bits(gb, 16); // XXX_reserved_zero_44bits[0..15]
221 skip_bits(gb, 16); // XXX_reserved_zero_44bits[16..31]
222 skip_bits(gb, 12); // XXX_reserved_zero_44bits[32..43]
225 static void parse_ptl(HEVCContext *s, PTL *ptl, int max_num_sub_layers)
228 GetBitContext *gb = &s->HEVClc.gb;
229 decode_profile_tier_level(s, &ptl->general_ptl);
230 ptl->general_ptl.level_idc = get_bits(gb, 8);
232 for (i = 0; i < max_num_sub_layers - 1; i++) {
233 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
234 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
236 if (max_num_sub_layers - 1 > 0)
237 for (i = max_num_sub_layers - 1; i < 8; i++)
238 skip_bits(gb, 2); // reserved_zero_2bits[i]
239 for (i = 0; i < max_num_sub_layers - 1; i++) {
240 if (ptl->sub_layer_profile_present_flag[i])
241 decode_profile_tier_level(s, &ptl->sub_layer_ptl[i]);
242 if (ptl->sub_layer_level_present_flag[i])
243 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
247 static void decode_sublayer_hrd(HEVCContext *s, unsigned int nb_cpb,
248 int subpic_params_present)
250 GetBitContext *gb = &s->HEVClc.gb;
253 for (i = 0; i < nb_cpb; i++) {
254 get_ue_golomb_long(gb); // bit_rate_value_minus1
255 get_ue_golomb_long(gb); // cpb_size_value_minus1
257 if (subpic_params_present) {
258 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
259 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
261 skip_bits1(gb); // cbr_flag
265 static void decode_hrd(HEVCContext *s, int common_inf_present,
268 GetBitContext *gb = &s->HEVClc.gb;
269 int nal_params_present = 0, vcl_params_present = 0;
270 int subpic_params_present = 0;
273 if (common_inf_present) {
274 nal_params_present = get_bits1(gb);
275 vcl_params_present = get_bits1(gb);
277 if (nal_params_present || vcl_params_present) {
278 subpic_params_present = get_bits1(gb);
280 if (subpic_params_present) {
281 skip_bits(gb, 8); // tick_divisor_minus2
282 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
283 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
284 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
287 skip_bits(gb, 4); // bit_rate_scale
288 skip_bits(gb, 4); // cpb_size_scale
290 if (subpic_params_present)
291 skip_bits(gb, 4); // cpb_size_du_scale
293 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
294 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
295 skip_bits(gb, 5); // dpb_output_delay_length_minus1
299 for (i = 0; i < max_sublayers; i++) {
301 unsigned int nb_cpb = 1;
302 int fixed_rate = get_bits1(gb);
305 fixed_rate = get_bits1(gb);
308 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
310 low_delay = get_bits1(gb);
313 nb_cpb = get_ue_golomb_long(gb) + 1;
315 if (nal_params_present)
316 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
317 if (vcl_params_present)
318 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
322 int ff_hevc_decode_nal_vps(HEVCContext *s)
325 GetBitContext *gb = &s->HEVClc.gb;
328 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
331 return AVERROR(ENOMEM);
332 vps = (HEVCVPS*)vps_buf->data;
334 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
336 vps_id = get_bits(gb, 4);
337 if (vps_id >= MAX_VPS_COUNT) {
338 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
342 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
343 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
347 vps->vps_max_layers = get_bits(gb, 6) + 1;
348 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
349 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
351 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
352 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
356 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
357 av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
358 vps->vps_max_sub_layers);
362 parse_ptl(s, &vps->ptl, vps->vps_max_sub_layers);
364 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
366 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
367 for (; i < vps->vps_max_sub_layers; i++) {
368 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
369 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
370 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
372 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
373 av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
374 vps->vps_max_dec_pic_buffering[i] - 1);
377 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
378 av_log(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
379 vps->vps_num_reorder_pics[i]);
384 vps->vps_max_layer_id = get_bits(gb, 6);
385 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
386 for (i = 1; i < vps->vps_num_layer_sets; i++)
387 for (j = 0; j <= vps->vps_max_layer_id; j++)
388 skip_bits(gb, 1); // layer_id_included_flag[i][j]
390 vps->vps_timing_info_present_flag = get_bits1(gb);
391 if (vps->vps_timing_info_present_flag) {
392 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
393 vps->vps_time_scale = get_bits_long(gb, 32);
394 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
395 if (vps->vps_poc_proportional_to_timing_flag)
396 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
397 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
398 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
399 int common_inf_present = 1;
401 get_ue_golomb_long(gb); // hrd_layer_set_idx
403 common_inf_present = get_bits1(gb);
404 decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
407 get_bits1(gb); /* vps_extension_flag */
409 av_buffer_unref(&s->vps_list[vps_id]);
410 s->vps_list[vps_id] = vps_buf;
414 av_buffer_unref(&vps_buf);
415 return AVERROR_INVALIDDATA;
418 static void decode_vui(HEVCContext *s, HEVCSPS *sps)
420 VUI *vui = &sps->vui;
421 GetBitContext *gb = &s->HEVClc.gb;
424 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
426 sar_present = get_bits1(gb);
428 uint8_t sar_idx = get_bits(gb, 8);
429 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
430 vui->sar = vui_sar[sar_idx];
431 else if (sar_idx == 255) {
432 vui->sar.num = get_bits(gb, 16);
433 vui->sar.den = get_bits(gb, 16);
435 av_log(s->avctx, AV_LOG_WARNING,
436 "Unknown SAR index: %u.\n", sar_idx);
439 vui->overscan_info_present_flag = get_bits1(gb);
440 if (vui->overscan_info_present_flag)
441 vui->overscan_appropriate_flag = get_bits1(gb);
443 vui->video_signal_type_present_flag = get_bits1(gb);
444 if (vui->video_signal_type_present_flag) {
445 vui->video_format = get_bits(gb, 3);
446 vui->video_full_range_flag = get_bits1(gb);
447 vui->colour_description_present_flag = get_bits1(gb);
448 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
449 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
450 if (vui->colour_description_present_flag) {
451 vui->colour_primaries = get_bits(gb, 8);
452 vui->transfer_characteristic = get_bits(gb, 8);
453 vui->matrix_coeffs = get_bits(gb, 8);
455 // Set invalid values to "unspecified"
456 if (vui->colour_primaries >= AVCOL_PRI_NB)
457 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
458 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
459 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
460 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
461 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
465 vui->chroma_loc_info_present_flag = get_bits1(gb);
466 if (vui->chroma_loc_info_present_flag) {
467 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
468 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
471 vui->neutra_chroma_indication_flag = get_bits1(gb);
472 vui->field_seq_flag = get_bits1(gb);
473 vui->frame_field_info_present_flag = get_bits1(gb);
475 vui->default_display_window_flag = get_bits1(gb);
476 if (vui->default_display_window_flag) {
477 //TODO: * 2 is only valid for 420
478 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
479 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
480 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
481 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
483 if (s->apply_defdispwin &&
484 s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
485 av_log(s->avctx, AV_LOG_DEBUG,
486 "discarding vui default display window, "
487 "original values are l:%u r:%u t:%u b:%u\n",
488 vui->def_disp_win.left_offset,
489 vui->def_disp_win.right_offset,
490 vui->def_disp_win.top_offset,
491 vui->def_disp_win.bottom_offset);
493 vui->def_disp_win.left_offset =
494 vui->def_disp_win.right_offset =
495 vui->def_disp_win.top_offset =
496 vui->def_disp_win.bottom_offset = 0;
500 vui->vui_timing_info_present_flag = get_bits1(gb);
501 if (vui->vui_timing_info_present_flag) {
502 vui->vui_num_units_in_tick = get_bits(gb, 32);
503 vui->vui_time_scale = get_bits(gb, 32);
504 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
505 if (vui->vui_poc_proportional_to_timing_flag)
506 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
507 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
508 if (vui->vui_hrd_parameters_present_flag)
509 decode_hrd(s, 1, sps->max_sub_layers);
512 vui->bitstream_restriction_flag = get_bits1(gb);
513 if (vui->bitstream_restriction_flag) {
514 vui->tiles_fixed_structure_flag = get_bits1(gb);
515 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
516 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
517 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
518 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
519 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
520 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
521 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
525 static void set_default_scaling_list_data(ScalingList *sl)
529 for (matrixId = 0; matrixId < 6; matrixId++) {
531 memset(sl->sl[0][matrixId], 16, 16);
532 sl->sl_dc[0][matrixId] = 16; // default for 16x16
533 sl->sl_dc[1][matrixId] = 16; // default for 32x32
535 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
536 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
537 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
538 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
539 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
540 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
541 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
542 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
543 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
544 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
545 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
546 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
547 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
548 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
551 static int scaling_list_data(HEVCContext *s, ScalingList *sl)
553 GetBitContext *gb = &s->HEVClc.gb;
554 uint8_t scaling_list_pred_mode_flag[4][6];
555 int32_t scaling_list_dc_coef[2][6];
556 int size_id, matrix_id, i, pos;
558 for (size_id = 0; size_id < 4; size_id++)
559 for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
560 scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
561 if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
562 unsigned int delta = get_ue_golomb_long(gb);
563 /* Only need to handle non-zero delta. Zero means default,
564 * which should already be in the arrays. */
566 // Copy from previous array.
567 if (matrix_id < delta) {
568 av_log(s->avctx, AV_LOG_ERROR,
569 "Invalid delta in scaling list data: %d.\n", delta);
570 return AVERROR_INVALIDDATA;
573 memcpy(sl->sl[size_id][matrix_id],
574 sl->sl[size_id][matrix_id - delta],
575 size_id > 0 ? 64 : 16);
577 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
580 int next_coef, coef_num;
581 int32_t scaling_list_delta_coef;
584 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
586 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
587 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
588 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
590 for (i = 0; i < coef_num; i++) {
592 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
593 ff_hevc_diag_scan4x4_x[i];
595 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
596 ff_hevc_diag_scan8x8_x[i];
598 scaling_list_delta_coef = get_se_golomb(gb);
599 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
600 sl->sl[size_id][matrix_id][pos] = next_coef;
608 int ff_hevc_decode_nal_sps(HEVCContext *s)
610 const AVPixFmtDescriptor *desc;
611 GetBitContext *gb = &s->HEVClc.gb;
614 int log2_diff_max_min_transform_block_size;
615 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
619 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
622 return AVERROR(ENOMEM);
623 sps = (HEVCSPS*)sps_buf->data;
625 av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
629 sps->vps_id = get_bits(gb, 4);
630 if (sps->vps_id >= MAX_VPS_COUNT) {
631 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
632 ret = AVERROR_INVALIDDATA;
636 if (!s->vps_list[sps->vps_id]) {
637 av_log(s->avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
639 ret = AVERROR_INVALIDDATA;
643 sps->max_sub_layers = get_bits(gb, 3) + 1;
644 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
645 av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
646 sps->max_sub_layers);
647 ret = AVERROR_INVALIDDATA;
651 skip_bits1(gb); // temporal_id_nesting_flag
653 parse_ptl(s, &sps->ptl, sps->max_sub_layers);
655 sps_id = get_ue_golomb_long(gb);
656 if (sps_id >= MAX_SPS_COUNT) {
657 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
658 ret = AVERROR_INVALIDDATA;
662 sps->chroma_format_idc = get_ue_golomb_long(gb);
663 if (sps->chroma_format_idc != 1) {
664 avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
665 ret = AVERROR_PATCHWELCOME;
669 if (sps->chroma_format_idc == 3)
670 sps->separate_colour_plane_flag = get_bits1(gb);
672 sps->width = get_ue_golomb_long(gb);
673 sps->height = get_ue_golomb_long(gb);
674 if ((ret = av_image_check_size(sps->width,
675 sps->height, 0, s->avctx)) < 0)
678 if (get_bits1(gb)) { // pic_conformance_flag
679 //TODO: * 2 is only valid for 420
680 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
681 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
682 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
683 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
685 if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
686 av_log(s->avctx, AV_LOG_DEBUG,
687 "discarding sps conformance window, "
688 "original values are l:%u r:%u t:%u b:%u\n",
689 sps->pic_conf_win.left_offset,
690 sps->pic_conf_win.right_offset,
691 sps->pic_conf_win.top_offset,
692 sps->pic_conf_win.bottom_offset);
694 sps->pic_conf_win.left_offset =
695 sps->pic_conf_win.right_offset =
696 sps->pic_conf_win.top_offset =
697 sps->pic_conf_win.bottom_offset = 0;
699 sps->output_window = sps->pic_conf_win;
702 sps->bit_depth = get_ue_golomb_long(gb) + 8;
703 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
704 if (bit_depth_chroma != sps->bit_depth) {
705 av_log(s->avctx, AV_LOG_ERROR,
706 "Luma bit depth (%d) is different from chroma bit depth (%d), "
707 "this is unsupported.\n",
708 sps->bit_depth, bit_depth_chroma);
709 ret = AVERROR_INVALIDDATA;
713 if (sps->chroma_format_idc == 1) {
714 switch (sps->bit_depth) {
715 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
716 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
717 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
719 av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
721 ret = AVERROR_PATCHWELCOME;
725 av_log(s->avctx, AV_LOG_ERROR,
726 "non-4:2:0 support is currently unspecified.\n");
727 return AVERROR_PATCHWELCOME;
730 desc = av_pix_fmt_desc_get(sps->pix_fmt);
732 ret = AVERROR(EINVAL);
736 sps->hshift[0] = sps->vshift[0] = 0;
737 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
738 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
740 sps->pixel_shift = sps->bit_depth > 8;
742 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
743 if (sps->log2_max_poc_lsb > 16) {
744 av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
745 sps->log2_max_poc_lsb - 4);
746 ret = AVERROR_INVALIDDATA;
750 sublayer_ordering_info = get_bits1(gb);
751 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
752 for (i = start; i < sps->max_sub_layers; i++) {
753 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
754 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
755 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
756 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
757 av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
758 sps->temporal_layer[i].max_dec_pic_buffering - 1);
759 ret = AVERROR_INVALIDDATA;
762 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
763 av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
764 sps->temporal_layer[i].num_reorder_pics);
765 ret = AVERROR_INVALIDDATA;
770 if (!sublayer_ordering_info) {
771 for (i = 0; i < start; i++) {
772 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
773 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
774 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
778 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
779 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
780 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
781 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
782 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
783 sps->log2_min_tb_size;
785 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
786 av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
787 ret = AVERROR_INVALIDDATA;
790 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
791 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
793 sps->scaling_list_enable_flag = get_bits1(gb);
794 if (sps->scaling_list_enable_flag) {
795 set_default_scaling_list_data(&sps->scaling_list);
798 ret = scaling_list_data(s, &sps->scaling_list);
804 sps->amp_enabled_flag = get_bits1(gb);
805 sps->sao_enabled = get_bits1(gb);
807 sps->pcm_enabled_flag = get_bits1(gb);
808 if (sps->pcm_enabled_flag) {
809 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
810 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
811 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
812 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
813 get_ue_golomb_long(gb);
814 if (sps->pcm.bit_depth > sps->bit_depth) {
815 av_log(s->avctx, AV_LOG_ERROR,
816 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
817 sps->pcm.bit_depth, sps->bit_depth);
818 ret = AVERROR_INVALIDDATA;
822 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
825 sps->nb_st_rps = get_ue_golomb_long(gb);
826 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
827 av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
829 ret = AVERROR_INVALIDDATA;
832 for (i = 0; i < sps->nb_st_rps; i++) {
833 if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
838 sps->long_term_ref_pics_present_flag = get_bits1(gb);
839 if (sps->long_term_ref_pics_present_flag) {
840 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
841 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
842 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
843 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
847 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
848 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
849 sps->vui.sar = (AVRational){0, 1};
850 vui_present = get_bits1(gb);
853 skip_bits1(gb); // sps_extension_flag
855 if (s->apply_defdispwin) {
856 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
857 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
858 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
859 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
861 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
862 !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
863 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
864 av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
865 "chroma samples to preserve alignment.\n",
866 sps->output_window.left_offset);
868 sps->output_width = sps->width -
869 (sps->output_window.left_offset + sps->output_window.right_offset);
870 sps->output_height = sps->height -
871 (sps->output_window.top_offset + sps->output_window.bottom_offset);
872 if (sps->output_width <= 0 || sps->output_height <= 0) {
873 av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
874 sps->output_width, sps->output_height);
875 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
876 ret = AVERROR_INVALIDDATA;
879 av_log(s->avctx, AV_LOG_WARNING,
880 "Displaying the whole video surface.\n");
881 sps->pic_conf_win.left_offset =
882 sps->pic_conf_win.right_offset =
883 sps->pic_conf_win.top_offset =
884 sps->pic_conf_win.bottom_offset = 0;
885 sps->output_width = sps->width;
886 sps->output_height = sps->height;
889 // Inferred parameters
890 sps->log2_ctb_size = sps->log2_min_cb_size +
891 sps->log2_diff_max_min_coding_block_size;
892 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
894 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
895 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
896 sps->ctb_size = sps->ctb_width * sps->ctb_height;
898 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
899 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
900 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
901 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
902 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
903 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
905 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
907 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
908 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
909 av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
913 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
914 av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
917 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
918 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
919 sps->max_transform_hierarchy_depth_inter);
922 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
923 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
924 sps->max_transform_hierarchy_depth_intra);
927 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
928 av_log(s->avctx, AV_LOG_ERROR,
929 "max transform block size out of range: %d\n",
930 sps->log2_max_trafo_size);
934 if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
935 av_log(s->avctx, AV_LOG_DEBUG,
936 "Parsed SPS: id %d; coded wxh: %dx%d; "
937 "cropped wxh: %dx%d; pix_fmt: %s.\n",
938 sps_id, sps->width, sps->height,
939 sps->output_width, sps->output_height,
940 av_get_pix_fmt_name(sps->pix_fmt));
943 /* check if this is a repeat of an already parsed SPS, then keep the
945 * otherwise drop all PPSes that depend on it */
946 if (s->sps_list[sps_id] &&
947 !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
948 av_buffer_unref(&sps_buf);
950 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
951 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
952 av_buffer_unref(&s->pps_list[i]);
954 av_buffer_unref(&s->sps_list[sps_id]);
955 s->sps_list[sps_id] = sps_buf;
961 av_buffer_unref(&sps_buf);
965 static void hevc_pps_free(void *opaque, uint8_t *data)
967 HEVCPPS *pps = (HEVCPPS*)data;
969 av_freep(&pps->column_width);
970 av_freep(&pps->row_height);
971 av_freep(&pps->col_bd);
972 av_freep(&pps->row_bd);
973 av_freep(&pps->col_idxX);
974 av_freep(&pps->ctb_addr_rs_to_ts);
975 av_freep(&pps->ctb_addr_ts_to_rs);
976 av_freep(&pps->tile_pos_rs);
977 av_freep(&pps->tile_id);
978 av_freep(&pps->min_cb_addr_zs);
979 av_freep(&pps->min_tb_addr_zs);
984 int ff_hevc_decode_nal_pps(HEVCContext *s)
986 GetBitContext *gb = &s->HEVClc.gb;
988 int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
989 int log2_diff_ctb_min_tb_size;
990 int i, j, x, y, ctb_addr_rs, tile_id;
994 AVBufferRef *pps_buf;
995 HEVCPPS *pps = av_mallocz(sizeof(*pps));
998 return AVERROR(ENOMEM);
1000 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1001 hevc_pps_free, NULL, 0);
1004 return AVERROR(ENOMEM);
1007 av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1010 pps->loop_filter_across_tiles_enabled_flag = 1;
1011 pps->num_tile_columns = 1;
1012 pps->num_tile_rows = 1;
1013 pps->uniform_spacing_flag = 1;
1014 pps->disable_dbf = 0;
1015 pps->beta_offset = 0;
1019 pps_id = get_ue_golomb_long(gb);
1020 if (pps_id >= MAX_PPS_COUNT) {
1021 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1022 ret = AVERROR_INVALIDDATA;
1025 pps->sps_id = get_ue_golomb_long(gb);
1026 if (pps->sps_id >= MAX_SPS_COUNT) {
1027 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1028 ret = AVERROR_INVALIDDATA;
1031 if (!s->sps_list[pps->sps_id]) {
1032 av_log(s->avctx, AV_LOG_ERROR, "SPS does not exist \n");
1033 ret = AVERROR_INVALIDDATA;
1036 sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
1038 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1039 pps->output_flag_present_flag = get_bits1(gb);
1040 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1042 pps->sign_data_hiding_flag = get_bits1(gb);
1044 pps->cabac_init_present_flag = get_bits1(gb);
1046 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1047 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1049 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1051 pps->constrained_intra_pred_flag = get_bits1(gb);
1052 pps->transform_skip_enabled_flag = get_bits1(gb);
1054 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1055 pps->diff_cu_qp_delta_depth = 0;
1056 if (pps->cu_qp_delta_enabled_flag)
1057 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1059 pps->cb_qp_offset = get_se_golomb(gb);
1060 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1061 av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1063 ret = AVERROR_INVALIDDATA;
1066 pps->cr_qp_offset = get_se_golomb(gb);
1067 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1068 av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1070 ret = AVERROR_INVALIDDATA;
1073 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1075 pps->weighted_pred_flag = get_bits1(gb);
1076 pps->weighted_bipred_flag = get_bits1(gb);
1078 pps->transquant_bypass_enable_flag = get_bits1(gb);
1079 pps->tiles_enabled_flag = get_bits1(gb);
1080 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1082 if (pps->tiles_enabled_flag) {
1083 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1084 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1085 if (pps->num_tile_columns == 0 ||
1086 pps->num_tile_columns >= sps->width) {
1087 av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1088 pps->num_tile_columns - 1);
1089 ret = AVERROR_INVALIDDATA;
1092 if (pps->num_tile_rows == 0 ||
1093 pps->num_tile_rows >= sps->height) {
1094 av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1095 pps->num_tile_rows - 1);
1096 ret = AVERROR_INVALIDDATA;
1100 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1101 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1102 if (!pps->column_width || !pps->row_height) {
1103 ret = AVERROR(ENOMEM);
1107 pps->uniform_spacing_flag = get_bits1(gb);
1108 if (!pps->uniform_spacing_flag) {
1110 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1111 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1112 sum += pps->column_width[i];
1114 if (sum >= sps->ctb_width) {
1115 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1116 ret = AVERROR_INVALIDDATA;
1119 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1122 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1123 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1124 sum += pps->row_height[i];
1126 if (sum >= sps->ctb_height) {
1127 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1128 ret = AVERROR_INVALIDDATA;
1131 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1133 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1136 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1138 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1139 if (pps->deblocking_filter_control_present_flag) {
1140 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1141 pps->disable_dbf = get_bits1(gb);
1142 if (!pps->disable_dbf) {
1143 pps->beta_offset = get_se_golomb(gb) * 2;
1144 pps->tc_offset = get_se_golomb(gb) * 2;
1145 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1146 av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1147 pps->beta_offset/2);
1148 ret = AVERROR_INVALIDDATA;
1151 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1152 av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1154 ret = AVERROR_INVALIDDATA;
1160 pps->scaling_list_data_present_flag = get_bits1(gb);
1161 if (pps->scaling_list_data_present_flag) {
1162 set_default_scaling_list_data(&pps->scaling_list);
1163 ret = scaling_list_data(s, &pps->scaling_list);
1167 pps->lists_modification_present_flag = get_bits1(gb);
1168 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1169 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1170 av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1171 pps->log2_parallel_merge_level - 2);
1172 ret = AVERROR_INVALIDDATA;
1176 pps->slice_header_extension_present_flag = get_bits1(gb);
1177 skip_bits1(gb); // pps_extension_flag
1179 // Inferred parameters
1180 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1181 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1182 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1183 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
1184 ret = AVERROR(ENOMEM);
1188 if (pps->uniform_spacing_flag) {
1189 if (!pps->column_width) {
1190 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1191 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1193 if (!pps->column_width || !pps->row_height) {
1194 ret = AVERROR(ENOMEM);
1198 for (i = 0; i < pps->num_tile_columns; i++) {
1199 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1200 (i * sps->ctb_width) / pps->num_tile_columns;
1203 for (i = 0; i < pps->num_tile_rows; i++) {
1204 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1205 (i * sps->ctb_height) / pps->num_tile_rows;
1210 for (i = 0; i < pps->num_tile_columns; i++)
1211 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1214 for (i = 0; i < pps->num_tile_rows; i++)
1215 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1217 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1218 if (i > pps->col_bd[j])
1220 pps->col_idxX[i] = j;
1226 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1227 pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
1228 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1230 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1231 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1232 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1233 pps->min_cb_addr_zs = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
1234 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1235 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1236 !pps->tile_id || !pps->min_cb_addr_zs || !pps->min_tb_addr_zs) {
1237 ret = AVERROR(ENOMEM);
1241 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1242 int tb_x = ctb_addr_rs % sps->ctb_width;
1243 int tb_y = ctb_addr_rs / sps->ctb_width;
1248 for (i = 0; i < pps->num_tile_columns; i++) {
1249 if (tb_x < pps->col_bd[i + 1]) {
1255 for (i = 0; i < pps->num_tile_rows; i++) {
1256 if (tb_y < pps->row_bd[i + 1]) {
1262 for (i = 0; i < tile_x; i++)
1263 val += pps->row_height[tile_y] * pps->column_width[i];
1264 for (i = 0; i < tile_y; i++)
1265 val += sps->ctb_width * pps->row_height[i];
1267 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1268 tb_x - pps->col_bd[tile_x];
1270 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1271 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1274 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1275 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1276 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1277 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1278 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1280 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1281 if (!pps->tile_pos_rs) {
1282 ret = AVERROR(ENOMEM);
1286 for (j = 0; j < pps->num_tile_rows; j++)
1287 for (i = 0; i < pps->num_tile_columns; i++)
1288 pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1290 for (y = 0; y < sps->min_cb_height; y++) {
1291 for (x = 0; x < sps->min_cb_width; x++) {
1292 int tb_x = x >> sps->log2_diff_max_min_coding_block_size;
1293 int tb_y = y >> sps->log2_diff_max_min_coding_block_size;
1294 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1295 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1296 (sps->log2_diff_max_min_coding_block_size * 2);
1297 for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
1299 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1301 pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
1305 log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
1306 for (y = 0; y < sps->min_tb_height; y++) {
1307 for (x = 0; x < sps->min_tb_width; x++) {
1308 int tb_x = x >> log2_diff_ctb_min_tb_size;
1309 int tb_y = y >> log2_diff_ctb_min_tb_size;
1310 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1311 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1312 (log2_diff_ctb_min_tb_size * 2);
1313 for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
1315 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1317 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1321 av_buffer_unref(&s->pps_list[pps_id]);
1322 s->pps_list[pps_id] = pps_buf;
1327 av_buffer_unref(&pps_buf);