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 int ff_hevc_decode_short_term_rps(HEVCContext *s, ShortTermRPS *rps,
73 const HEVCSPS *sps, int is_slice_header)
75 HEVCLocalContext *lc = s->HEVClc;
76 uint8_t rps_predict = 0;
83 GetBitContext *gb = &lc->gb;
85 if (rps != sps->st_rps && sps->nb_st_rps)
86 rps_predict = get_bits1(gb);
89 const ShortTermRPS *rps_ridx;
90 int delta_rps, abs_delta_rps;
91 uint8_t use_delta_flag = 0;
92 uint8_t delta_rps_sign;
94 if (is_slice_header) {
95 int delta_idx = get_ue_golomb_long(gb) + 1;
96 if (delta_idx > sps->nb_st_rps) {
97 av_log(s->avctx, AV_LOG_ERROR,
98 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
99 delta_idx, sps->nb_st_rps);
100 return AVERROR_INVALIDDATA;
102 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
104 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
106 delta_rps_sign = get_bits1(gb);
107 abs_delta_rps = get_ue_golomb_long(gb) + 1;
108 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
109 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
110 int used = rps->used[k] = get_bits1(gb);
113 use_delta_flag = get_bits1(gb);
115 if (used || use_delta_flag) {
116 if (i < rps_ridx->num_delta_pocs)
117 delta_poc = delta_rps + rps_ridx->delta_poc[i];
119 delta_poc = delta_rps;
120 rps->delta_poc[k] = delta_poc;
129 rps->num_delta_pocs = k;
130 rps->num_negative_pics = k0;
131 // sort in increasing order (smallest first)
132 if (rps->num_delta_pocs != 0) {
134 for (i = 1; i < rps->num_delta_pocs; i++) {
135 delta_poc = rps->delta_poc[i];
137 for (k = i - 1; k >= 0; k--) {
138 tmp = rps->delta_poc[k];
139 if (delta_poc < tmp) {
140 rps->delta_poc[k + 1] = tmp;
141 rps->used[k + 1] = rps->used[k];
142 rps->delta_poc[k] = delta_poc;
148 if ((rps->num_negative_pics >> 1) != 0) {
150 k = rps->num_negative_pics - 1;
151 // flip the negative values to largest first
152 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
153 delta_poc = rps->delta_poc[i];
155 rps->delta_poc[i] = rps->delta_poc[k];
156 rps->used[i] = rps->used[k];
157 rps->delta_poc[k] = delta_poc;
163 unsigned int prev, nb_positive_pics;
164 rps->num_negative_pics = get_ue_golomb_long(gb);
165 nb_positive_pics = get_ue_golomb_long(gb);
167 if (rps->num_negative_pics >= MAX_REFS ||
168 nb_positive_pics >= MAX_REFS) {
169 av_log(s->avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
170 return AVERROR_INVALIDDATA;
173 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
174 if (rps->num_delta_pocs) {
176 for (i = 0; i < rps->num_negative_pics; i++) {
177 delta_poc = get_ue_golomb_long(gb) + 1;
179 rps->delta_poc[i] = prev;
180 rps->used[i] = get_bits1(gb);
183 for (i = 0; i < nb_positive_pics; i++) {
184 delta_poc = get_ue_golomb_long(gb) + 1;
186 rps->delta_poc[rps->num_negative_pics + i] = prev;
187 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
195 static void decode_profile_tier_level(HEVCContext *s, PTLCommon *ptl)
198 HEVCLocalContext *lc = s->HEVClc;
199 GetBitContext *gb = &lc->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 HEVCLocalContext *lc = s->HEVClc;
229 GetBitContext *gb = &lc->gb;
230 decode_profile_tier_level(s, &ptl->general_ptl);
231 ptl->general_ptl.level_idc = get_bits(gb, 8);
233 for (i = 0; i < max_num_sub_layers - 1; i++) {
234 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
235 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
237 if (max_num_sub_layers - 1> 0)
238 for (i = max_num_sub_layers - 1; i < 8; i++)
239 skip_bits(gb, 2); // reserved_zero_2bits[i]
240 for (i = 0; i < max_num_sub_layers - 1; i++) {
241 if (ptl->sub_layer_profile_present_flag[i])
242 decode_profile_tier_level(s, &ptl->sub_layer_ptl[i]);
243 if (ptl->sub_layer_level_present_flag[i])
244 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
248 static void decode_sublayer_hrd(HEVCContext *s, int nb_cpb,
249 int subpic_params_present)
251 GetBitContext *gb = &s->HEVClc->gb;
254 for (i = 0; i < nb_cpb; i++) {
255 get_ue_golomb_long(gb); // bit_rate_value_minus1
256 get_ue_golomb_long(gb); // cpb_size_value_minus1
258 if (subpic_params_present) {
259 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
260 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
262 skip_bits1(gb); // cbr_flag
266 static void decode_hrd(HEVCContext *s, int common_inf_present,
269 GetBitContext *gb = &s->HEVClc->gb;
270 int nal_params_present = 0, vcl_params_present = 0;
271 int subpic_params_present = 0;
274 if (common_inf_present) {
275 nal_params_present = get_bits1(gb);
276 vcl_params_present = get_bits1(gb);
278 if (nal_params_present || vcl_params_present) {
279 subpic_params_present = get_bits1(gb);
281 if (subpic_params_present) {
282 skip_bits(gb, 8); // tick_divisor_minus2
283 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
284 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
285 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
288 skip_bits(gb, 4); // bit_rate_scale
289 skip_bits(gb, 4); // cpb_size_scale
291 if (subpic_params_present)
292 skip_bits(gb, 4); // cpb_size_du_scale
294 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
295 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
296 skip_bits(gb, 5); // dpb_output_delay_length_minus1
300 for (i = 0; i < max_sublayers; i++) {
303 int fixed_rate = get_bits1(gb);
306 fixed_rate = get_bits1(gb);
309 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
311 low_delay = get_bits1(gb);
314 nb_cpb = get_ue_golomb_long(gb) + 1;
316 if (nal_params_present)
317 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
318 if (vcl_params_present)
319 decode_sublayer_hrd(s, nb_cpb, subpic_params_present);
323 int ff_hevc_decode_nal_vps(HEVCContext *s)
326 GetBitContext *gb = &s->HEVClc->gb;
329 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
332 return AVERROR(ENOMEM);
333 vps = (HEVCVPS*)vps_buf->data;
335 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VPS\n");
337 vps_id = get_bits(gb, 4);
338 if (vps_id >= MAX_VPS_COUNT) {
339 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", vps_id);
343 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
344 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
348 vps->vps_max_layers = get_bits(gb, 6) + 1;
349 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
350 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
352 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
353 av_log(s->avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
357 if (vps->vps_max_sub_layers > MAX_SUB_LAYERS) {
358 av_log(s->avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
359 vps->vps_max_sub_layers);
363 parse_ptl(s, &vps->ptl, vps->vps_max_sub_layers);
365 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
367 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
368 for (; i < vps->vps_max_sub_layers; i++) {
369 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
370 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
371 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
373 if (vps->vps_max_dec_pic_buffering[i] > MAX_DPB_SIZE) {
374 av_log(s->avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
375 vps->vps_max_dec_pic_buffering[i] - 1);
378 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
379 av_log(s->avctx, AV_LOG_ERROR, "vps_max_num_reorder_pics out of range: %d\n",
380 vps->vps_num_reorder_pics[i]);
385 vps->vps_max_layer_id = get_bits(gb, 6);
386 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
387 for (i = 1; i < vps->vps_num_layer_sets; i++)
388 for (j = 0; j <= vps->vps_max_layer_id; j++)
389 skip_bits(gb, 1); // layer_id_included_flag[i][j]
391 vps->vps_timing_info_present_flag = get_bits1(gb);
392 if (vps->vps_timing_info_present_flag) {
393 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
394 vps->vps_time_scale = get_bits_long(gb, 32);
395 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
396 if (vps->vps_poc_proportional_to_timing_flag)
397 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
398 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
399 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
400 int common_inf_present = 1;
402 get_ue_golomb_long(gb); // hrd_layer_set_idx
404 common_inf_present = get_bits1(gb);
405 decode_hrd(s, common_inf_present, vps->vps_max_sub_layers);
408 get_bits1(gb); /* vps_extension_flag */
410 av_buffer_unref(&s->vps_list[vps_id]);
411 s->vps_list[vps_id] = vps_buf;
415 av_buffer_unref(&vps_buf);
416 return AVERROR_INVALIDDATA;
419 static void decode_vui(HEVCContext *s, HEVCSPS *sps)
421 VUI *vui = &sps->vui;
422 GetBitContext *gb = &s->HEVClc->gb;
425 av_log(s->avctx, AV_LOG_DEBUG, "Decoding VUI\n");
427 sar_present = get_bits1(gb);
429 uint8_t sar_idx = get_bits(gb, 8);
430 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
431 vui->sar = vui_sar[sar_idx];
432 else if (sar_idx == 255) {
433 vui->sar.num = get_bits(gb, 16);
434 vui->sar.den = get_bits(gb, 16);
436 av_log(s->avctx, AV_LOG_WARNING,
437 "Unknown SAR index: %u.\n", sar_idx);
440 vui->overscan_info_present_flag = get_bits1(gb);
441 if (vui->overscan_info_present_flag)
442 vui->overscan_appropriate_flag = get_bits1(gb);
444 vui->video_signal_type_present_flag = get_bits1(gb);
445 if (vui->video_signal_type_present_flag) {
446 vui->video_format = get_bits(gb, 3);
447 vui->video_full_range_flag = get_bits1(gb);
448 vui->colour_description_present_flag = get_bits1(gb);
449 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
450 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
451 if (vui->colour_description_present_flag) {
452 vui->colour_primaries = get_bits(gb, 8);
453 vui->transfer_characteristic = get_bits(gb, 8);
454 vui->matrix_coeffs = get_bits(gb, 8);
456 // Set invalid values to "unspecified"
457 if (vui->colour_primaries >= AVCOL_PRI_NB)
458 vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
459 if (vui->transfer_characteristic >= AVCOL_TRC_NB)
460 vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
461 if (vui->matrix_coeffs >= AVCOL_SPC_NB)
462 vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
466 vui->chroma_loc_info_present_flag = get_bits1(gb);
467 if (vui->chroma_loc_info_present_flag) {
468 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
469 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
472 vui->neutra_chroma_indication_flag = get_bits1(gb);
473 vui->field_seq_flag = get_bits1(gb);
474 vui->frame_field_info_present_flag = get_bits1(gb);
476 vui->default_display_window_flag = get_bits1(gb);
477 if (vui->default_display_window_flag) {
478 //TODO: * 2 is only valid for 420
479 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * 2;
480 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * 2;
481 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * 2;
482 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * 2;
484 if (s->apply_defdispwin &&
485 s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
486 av_log(s->avctx, AV_LOG_DEBUG,
487 "discarding vui default display window, "
488 "original values are l:%u r:%u t:%u b:%u\n",
489 vui->def_disp_win.left_offset,
490 vui->def_disp_win.right_offset,
491 vui->def_disp_win.top_offset,
492 vui->def_disp_win.bottom_offset);
494 vui->def_disp_win.left_offset =
495 vui->def_disp_win.right_offset =
496 vui->def_disp_win.top_offset =
497 vui->def_disp_win.bottom_offset = 0;
501 vui->vui_timing_info_present_flag = get_bits1(gb);
503 if (vui->vui_timing_info_present_flag) {
504 vui->vui_num_units_in_tick = get_bits(gb, 32);
505 vui->vui_time_scale = get_bits(gb, 32);
506 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
507 if (vui->vui_poc_proportional_to_timing_flag)
508 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
509 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
510 if (vui->vui_hrd_parameters_present_flag)
511 decode_hrd(s, 1, sps->max_sub_layers);
514 vui->bitstream_restriction_flag = get_bits1(gb);
515 if (vui->bitstream_restriction_flag) {
516 vui->tiles_fixed_structure_flag = get_bits1(gb);
517 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
518 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
519 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
520 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
521 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
522 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
523 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
527 static void set_default_scaling_list_data(ScalingList *sl)
531 for (matrixId = 0; matrixId < 6; matrixId++) {
533 memset(sl->sl[0][matrixId], 16, 16);
534 sl->sl_dc[0][matrixId] = 16; // default for 16x16
535 sl->sl_dc[1][matrixId] = 16; // default for 32x32
537 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
538 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
539 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
540 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
541 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
542 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
543 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
544 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
545 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
546 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
547 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
548 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
549 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
550 memcpy(sl->sl[3][1], default_scaling_list_inter, 64);
553 static int scaling_list_data(HEVCContext *s, ScalingList *sl)
555 GetBitContext *gb = &s->HEVClc->gb;
556 uint8_t scaling_list_pred_mode_flag[4][6];
557 int32_t scaling_list_dc_coef[2][6];
558 int size_id, matrix_id, i, pos, delta;
560 for (size_id = 0; size_id < 4; size_id++)
561 for (matrix_id = 0; matrix_id < (size_id == 3 ? 2 : 6); matrix_id++) {
562 scaling_list_pred_mode_flag[size_id][matrix_id] = get_bits1(gb);
563 if (!scaling_list_pred_mode_flag[size_id][matrix_id]) {
564 delta = get_ue_golomb_long(gb);
565 /* Only need to handle non-zero delta. Zero means default,
566 * which should already be in the arrays. */
568 // Copy from previous array.
569 if (matrix_id - delta < 0) {
570 av_log(s->avctx, AV_LOG_ERROR,
571 "Invalid delta in scaling list data: %d.\n", delta);
572 return AVERROR_INVALIDDATA;
575 memcpy(sl->sl[size_id][matrix_id],
576 sl->sl[size_id][matrix_id - delta],
577 size_id > 0 ? 64 : 16);
579 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
582 int next_coef, coef_num;
583 int32_t scaling_list_delta_coef;
586 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
588 scaling_list_dc_coef[size_id - 2][matrix_id] = get_se_golomb(gb) + 8;
589 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
590 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
592 for (i = 0; i < coef_num; i++) {
594 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
595 ff_hevc_diag_scan4x4_x[i];
597 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
598 ff_hevc_diag_scan8x8_x[i];
600 scaling_list_delta_coef = get_se_golomb(gb);
601 next_coef = (next_coef + scaling_list_delta_coef + 256) % 256;
602 sl->sl[size_id][matrix_id][pos] = next_coef;
610 int ff_hevc_decode_nal_sps(HEVCContext *s)
612 const AVPixFmtDescriptor *desc;
613 GetBitContext *gb = &s->HEVClc->gb;
616 int log2_diff_max_min_transform_block_size;
617 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
621 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
624 return AVERROR(ENOMEM);
625 sps = (HEVCSPS*)sps_buf->data;
627 av_log(s->avctx, AV_LOG_DEBUG, "Decoding SPS\n");
631 sps->vps_id = get_bits(gb, 4);
632 if (sps->vps_id >= MAX_VPS_COUNT) {
633 av_log(s->avctx, AV_LOG_ERROR, "VPS id out of range: %d\n", sps->vps_id);
634 ret = AVERROR_INVALIDDATA;
638 sps->max_sub_layers = get_bits(gb, 3) + 1;
639 if (sps->max_sub_layers > MAX_SUB_LAYERS) {
640 av_log(s->avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
641 sps->max_sub_layers);
642 ret = AVERROR_INVALIDDATA;
646 skip_bits1(gb); // temporal_id_nesting_flag
648 parse_ptl(s, &sps->ptl, sps->max_sub_layers);
650 sps_id = get_ue_golomb_long(gb);
651 if (sps_id >= MAX_SPS_COUNT) {
652 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", sps_id);
653 ret = AVERROR_INVALIDDATA;
657 sps->chroma_format_idc = get_ue_golomb_long(gb);
658 if (sps->chroma_format_idc != 1) {
659 avpriv_report_missing_feature(s->avctx, "chroma_format_idc != 1\n");
660 ret = AVERROR_PATCHWELCOME;
664 if (sps->chroma_format_idc == 3)
665 sps->separate_colour_plane_flag = get_bits1(gb);
667 sps->width = get_ue_golomb_long(gb);
668 sps->height = get_ue_golomb_long(gb);
669 if ((ret = av_image_check_size(sps->width,
670 sps->height, 0, s->avctx)) < 0)
673 if (get_bits1(gb)) { // pic_conformance_flag
674 //TODO: * 2 is only valid for 420
675 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * 2;
676 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * 2;
677 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * 2;
678 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * 2;
680 if (s->avctx->flags2 & CODEC_FLAG2_IGNORE_CROP) {
681 av_log(s->avctx, AV_LOG_DEBUG,
682 "discarding sps conformance window, "
683 "original values are l:%u r:%u t:%u b:%u\n",
684 sps->pic_conf_win.left_offset,
685 sps->pic_conf_win.right_offset,
686 sps->pic_conf_win.top_offset,
687 sps->pic_conf_win.bottom_offset);
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 = 0;
694 sps->output_window = sps->pic_conf_win;
697 sps->bit_depth = get_ue_golomb_long(gb) + 8;
698 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
699 if (bit_depth_chroma != sps->bit_depth) {
700 av_log(s->avctx, AV_LOG_ERROR,
701 "Luma bit depth (%d) is different from chroma bit depth (%d), "
702 "this is unsupported.\n",
703 sps->bit_depth, bit_depth_chroma);
704 ret = AVERROR_INVALIDDATA;
708 if (sps->chroma_format_idc == 1) {
709 switch (sps->bit_depth) {
710 case 8: sps->pix_fmt = AV_PIX_FMT_YUV420P; break;
711 case 9: sps->pix_fmt = AV_PIX_FMT_YUV420P9; break;
712 case 10: sps->pix_fmt = AV_PIX_FMT_YUV420P10; break;
714 av_log(s->avctx, AV_LOG_ERROR, "Unsupported bit depth: %d\n",
716 ret = AVERROR_PATCHWELCOME;
720 av_log(s->avctx, AV_LOG_ERROR,
721 "non-4:2:0 support is currently unspecified.\n");
722 return AVERROR_PATCHWELCOME;
725 desc = av_pix_fmt_desc_get(sps->pix_fmt);
727 ret = AVERROR(EINVAL);
731 sps->hshift[0] = sps->vshift[0] = 0;
732 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
733 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
735 sps->pixel_shift = sps->bit_depth > 8;
737 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
738 if (sps->log2_max_poc_lsb > 16) {
739 av_log(s->avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
740 sps->log2_max_poc_lsb - 4);
741 ret = AVERROR_INVALIDDATA;
745 sublayer_ordering_info = get_bits1(gb);
746 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
747 for (i = start; i < sps->max_sub_layers; i++) {
748 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
749 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
750 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
751 if (sps->temporal_layer[i].max_dec_pic_buffering > MAX_DPB_SIZE) {
752 av_log(s->avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
753 sps->temporal_layer[i].max_dec_pic_buffering - 1);
754 ret = AVERROR_INVALIDDATA;
757 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
758 av_log(s->avctx, AV_LOG_ERROR, "sps_max_num_reorder_pics out of range: %d\n",
759 sps->temporal_layer[i].num_reorder_pics);
760 ret = AVERROR_INVALIDDATA;
765 if (!sublayer_ordering_info) {
766 for (i = 0; i < start; i++) {
767 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
768 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
769 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
773 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
774 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
775 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
776 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
777 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
778 sps->log2_min_tb_size;
780 if (sps->log2_min_tb_size >= sps->log2_min_cb_size) {
781 av_log(s->avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
782 ret = AVERROR_INVALIDDATA;
785 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
786 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
788 sps->scaling_list_enable_flag = get_bits1(gb);
789 if (sps->scaling_list_enable_flag) {
790 set_default_scaling_list_data(&sps->scaling_list);
793 ret = scaling_list_data(s, &sps->scaling_list);
799 sps->amp_enabled_flag = get_bits1(gb);
800 sps->sao_enabled = get_bits1(gb);
802 sps->pcm_enabled_flag = get_bits1(gb);
803 if (sps->pcm_enabled_flag) {
804 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
805 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
806 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
807 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
808 get_ue_golomb_long(gb);
809 if (sps->pcm.bit_depth > sps->bit_depth) {
810 av_log(s->avctx, AV_LOG_ERROR,
811 "PCM bit depth (%d) is greater than normal bit depth (%d)\n",
812 sps->pcm.bit_depth, sps->bit_depth);
813 ret = AVERROR_INVALIDDATA;
817 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
820 sps->nb_st_rps = get_ue_golomb_long(gb);
821 if (sps->nb_st_rps > MAX_SHORT_TERM_RPS_COUNT) {
822 av_log(s->avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
824 ret = AVERROR_INVALIDDATA;
827 for (i = 0; i < sps->nb_st_rps; i++) {
828 if ((ret = ff_hevc_decode_short_term_rps(s, &sps->st_rps[i],
833 sps->long_term_ref_pics_present_flag = get_bits1(gb);
834 if (sps->long_term_ref_pics_present_flag) {
835 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
836 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
837 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
838 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
842 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
843 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
844 sps->vui.sar = (AVRational){0, 1};
845 vui_present = get_bits1(gb);
848 skip_bits1(gb); // sps_extension_flag
850 if (s->apply_defdispwin) {
851 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
852 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
853 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
854 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
856 if (sps->output_window.left_offset & (0x1F >> (sps->pixel_shift)) &&
857 !(s->avctx->flags & CODEC_FLAG_UNALIGNED)) {
858 sps->output_window.left_offset &= ~(0x1F >> (sps->pixel_shift));
859 av_log(s->avctx, AV_LOG_WARNING, "Reducing left output window to %d "
860 "chroma samples to preserve alignment.\n",
861 sps->output_window.left_offset);
863 sps->output_width = sps->width -
864 (sps->output_window.left_offset + sps->output_window.right_offset);
865 sps->output_height = sps->height -
866 (sps->output_window.top_offset + sps->output_window.bottom_offset);
867 if (sps->output_width <= 0 || sps->output_height <= 0) {
868 av_log(s->avctx, AV_LOG_WARNING, "Invalid visible frame dimensions: %dx%d.\n",
869 sps->output_width, sps->output_height);
870 if (s->avctx->err_recognition & AV_EF_EXPLODE) {
871 ret = AVERROR_INVALIDDATA;
874 av_log(s->avctx, AV_LOG_WARNING,
875 "Displaying the whole video surface.\n");
876 sps->pic_conf_win.left_offset =
877 sps->pic_conf_win.right_offset =
878 sps->pic_conf_win.top_offset =
879 sps->pic_conf_win.bottom_offset = 0;
880 sps->output_width = sps->width;
881 sps->output_height = sps->height;
884 // Inferred parameters
885 sps->log2_ctb_size = sps->log2_min_cb_size +
886 sps->log2_diff_max_min_coding_block_size;
887 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
889 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
890 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
891 sps->ctb_size = sps->ctb_width * sps->ctb_height;
893 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
894 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
895 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
896 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
897 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
898 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
900 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
902 if (sps->width & ((1 << sps->log2_min_cb_size) - 1) ||
903 sps->height & ((1 << sps->log2_min_cb_size) - 1)) {
904 av_log(s->avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
908 if (sps->log2_ctb_size > MAX_LOG2_CTB_SIZE) {
909 av_log(s->avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
912 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
913 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
914 sps->max_transform_hierarchy_depth_inter);
917 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
918 av_log(s->avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
919 sps->max_transform_hierarchy_depth_intra);
922 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
923 av_log(s->avctx, AV_LOG_ERROR,
924 "max transform block size out of range: %d\n",
925 sps->log2_max_trafo_size);
929 if (s->avctx->debug & FF_DEBUG_BITSTREAM) {
930 av_log(s->avctx, AV_LOG_DEBUG,
931 "Parsed SPS: id %d; coded wxh: %dx%d; "
932 "cropped wxh: %dx%d; pix_fmt: %s.\n",
933 sps_id, sps->width, sps->height,
934 sps->output_width, sps->output_height,
935 av_get_pix_fmt_name(sps->pix_fmt));
938 /* check if this is a repeat of an already parsed SPS, then keep the
940 * otherwise drop all PPSes that depend on it */
941 if (s->sps_list[sps_id] &&
942 !memcmp(s->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
943 av_buffer_unref(&sps_buf);
945 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++) {
946 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == sps_id)
947 av_buffer_unref(&s->pps_list[i]);
949 av_buffer_unref(&s->sps_list[sps_id]);
950 s->sps_list[sps_id] = sps_buf;
956 av_buffer_unref(&sps_buf);
960 static void hevc_pps_free(void *opaque, uint8_t *data)
962 HEVCPPS *pps = (HEVCPPS*)data;
964 av_freep(&pps->column_width);
965 av_freep(&pps->row_height);
966 av_freep(&pps->col_bd);
967 av_freep(&pps->row_bd);
968 av_freep(&pps->col_idxX);
969 av_freep(&pps->ctb_addr_rs_to_ts);
970 av_freep(&pps->ctb_addr_ts_to_rs);
971 av_freep(&pps->tile_pos_rs);
972 av_freep(&pps->tile_id);
973 av_freep(&pps->min_cb_addr_zs);
974 av_freep(&pps->min_tb_addr_zs);
979 int ff_hevc_decode_nal_pps(HEVCContext *s)
981 GetBitContext *gb = &s->HEVClc->gb;
983 int pic_area_in_ctbs, pic_area_in_min_cbs, pic_area_in_min_tbs;
984 int log2_diff_ctb_min_tb_size;
985 int i, j, x, y, ctb_addr_rs, tile_id;
989 AVBufferRef *pps_buf;
990 HEVCPPS *pps = av_mallocz(sizeof(*pps));
993 return AVERROR(ENOMEM);
995 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
996 hevc_pps_free, NULL, 0);
999 return AVERROR(ENOMEM);
1002 av_log(s->avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1005 pps->loop_filter_across_tiles_enabled_flag = 1;
1006 pps->num_tile_columns = 1;
1007 pps->num_tile_rows = 1;
1008 pps->uniform_spacing_flag = 1;
1009 pps->disable_dbf = 0;
1010 pps->beta_offset = 0;
1014 pps_id = get_ue_golomb_long(gb);
1015 if (pps_id >= MAX_PPS_COUNT) {
1016 av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1017 ret = AVERROR_INVALIDDATA;
1020 pps->sps_id = get_ue_golomb_long(gb);
1021 if (pps->sps_id >= MAX_SPS_COUNT) {
1022 av_log(s->avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1023 ret = AVERROR_INVALIDDATA;
1026 if (!s->sps_list[pps->sps_id]) {
1027 av_log(s->avctx, AV_LOG_ERROR, "SPS does not exist \n");
1028 ret = AVERROR_INVALIDDATA;
1031 sps = (HEVCSPS *)s->sps_list[pps->sps_id]->data;
1033 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1034 pps->output_flag_present_flag = get_bits1(gb);
1035 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1037 pps->sign_data_hiding_flag = get_bits1(gb);
1039 pps->cabac_init_present_flag = get_bits1(gb);
1041 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1042 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1044 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1046 pps->constrained_intra_pred_flag = get_bits1(gb);
1047 pps->transform_skip_enabled_flag = get_bits1(gb);
1049 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1050 pps->diff_cu_qp_delta_depth = 0;
1051 if (pps->cu_qp_delta_enabled_flag)
1052 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1054 pps->cb_qp_offset = get_se_golomb(gb);
1055 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1056 av_log(s->avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1058 ret = AVERROR_INVALIDDATA;
1061 pps->cr_qp_offset = get_se_golomb(gb);
1062 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1063 av_log(s->avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1065 ret = AVERROR_INVALIDDATA;
1068 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1070 pps->weighted_pred_flag = get_bits1(gb);
1071 pps->weighted_bipred_flag = get_bits1(gb);
1073 pps->transquant_bypass_enable_flag = get_bits1(gb);
1074 pps->tiles_enabled_flag = get_bits1(gb);
1075 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1077 if (pps->tiles_enabled_flag) {
1078 pps->num_tile_columns = get_ue_golomb_long(gb) + 1;
1079 pps->num_tile_rows = get_ue_golomb_long(gb) + 1;
1080 if (pps->num_tile_columns == 0 ||
1081 pps->num_tile_columns >= sps->width) {
1082 av_log(s->avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1083 pps->num_tile_columns - 1);
1084 ret = AVERROR_INVALIDDATA;
1087 if (pps->num_tile_rows == 0 ||
1088 pps->num_tile_rows >= sps->height) {
1089 av_log(s->avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1090 pps->num_tile_rows - 1);
1091 ret = AVERROR_INVALIDDATA;
1095 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1096 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1097 if (!pps->column_width || !pps->row_height) {
1098 ret = AVERROR(ENOMEM);
1102 pps->uniform_spacing_flag = get_bits1(gb);
1103 if (!pps->uniform_spacing_flag) {
1105 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1106 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1107 sum += pps->column_width[i];
1109 if (sum >= sps->ctb_width) {
1110 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1111 ret = AVERROR_INVALIDDATA;
1114 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1117 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1118 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1119 sum += pps->row_height[i];
1121 if (sum >= sps->ctb_height) {
1122 av_log(s->avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1123 ret = AVERROR_INVALIDDATA;
1126 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1128 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1131 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1133 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1134 if (pps->deblocking_filter_control_present_flag) {
1135 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1136 pps->disable_dbf = get_bits1(gb);
1137 if (!pps->disable_dbf) {
1138 pps->beta_offset = get_se_golomb(gb) * 2;
1139 pps->tc_offset = get_se_golomb(gb) * 2;
1140 if (pps->beta_offset/2 < -6 || pps->beta_offset/2 > 6) {
1141 av_log(s->avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1142 pps->beta_offset/2);
1143 ret = AVERROR_INVALIDDATA;
1146 if (pps->tc_offset/2 < -6 || pps->tc_offset/2 > 6) {
1147 av_log(s->avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1149 ret = AVERROR_INVALIDDATA;
1155 pps->scaling_list_data_present_flag = get_bits1(gb);
1156 if (pps->scaling_list_data_present_flag) {
1157 set_default_scaling_list_data(&pps->scaling_list);
1158 ret = scaling_list_data(s, &pps->scaling_list);
1162 pps->lists_modification_present_flag = get_bits1(gb);
1163 pps->log2_parallel_merge_level = get_ue_golomb_long(gb) + 2;
1164 if (pps->log2_parallel_merge_level > sps->log2_ctb_size) {
1165 av_log(s->avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1166 pps->log2_parallel_merge_level - 2);
1167 ret = AVERROR_INVALIDDATA;
1171 pps->slice_header_extension_present_flag = get_bits1(gb);
1172 skip_bits1(gb); // pps_extension_flag
1174 // Inferred parameters
1175 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1176 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1177 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1178 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX) {
1179 ret = AVERROR(ENOMEM);
1183 if (pps->uniform_spacing_flag) {
1184 if (!pps->column_width) {
1185 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1186 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1188 if (!pps->column_width || !pps->row_height) {
1189 ret = AVERROR(ENOMEM);
1193 for (i = 0; i < pps->num_tile_columns; i++) {
1194 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1195 (i * sps->ctb_width) / pps->num_tile_columns;
1198 for (i = 0; i < pps->num_tile_rows; i++) {
1199 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1200 (i * sps->ctb_height) / pps->num_tile_rows;
1205 for (i = 0; i < pps->num_tile_columns; i++)
1206 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1209 for (i = 0; i < pps->num_tile_rows; i++)
1210 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1212 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1213 if (i > pps->col_bd[j])
1215 pps->col_idxX[i] = j;
1221 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1222 pic_area_in_min_cbs = sps->min_cb_width * sps->min_cb_height;
1223 pic_area_in_min_tbs = sps->min_tb_width * sps->min_tb_height;
1225 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1226 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1227 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1228 pps->min_cb_addr_zs = av_malloc_array(pic_area_in_min_cbs, sizeof(*pps->min_cb_addr_zs));
1229 pps->min_tb_addr_zs = av_malloc_array(pic_area_in_min_tbs, sizeof(*pps->min_tb_addr_zs));
1230 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1231 !pps->tile_id || !pps->min_cb_addr_zs || !pps->min_tb_addr_zs) {
1232 ret = AVERROR(ENOMEM);
1236 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1237 int tb_x = ctb_addr_rs % sps->ctb_width;
1238 int tb_y = ctb_addr_rs / sps->ctb_width;
1243 for (i = 0; i < pps->num_tile_columns; i++) {
1244 if (tb_x < pps->col_bd[i + 1]) {
1250 for (i = 0; i < pps->num_tile_rows; i++) {
1251 if (tb_y < pps->row_bd[i + 1]) {
1257 for (i = 0; i < tile_x; i++)
1258 val += pps->row_height[tile_y] * pps->column_width[i];
1259 for (i = 0; i < tile_y; i++)
1260 val += sps->ctb_width * pps->row_height[i];
1262 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1263 tb_x - pps->col_bd[tile_x];
1265 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1266 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1269 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1270 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1271 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1272 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1273 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1275 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1276 if (!pps->tile_pos_rs) {
1277 ret = AVERROR(ENOMEM);
1281 for (j = 0; j < pps->num_tile_rows; j++)
1282 for (i = 0; i < pps->num_tile_columns; i++)
1283 pps->tile_pos_rs[j * pps->num_tile_columns + i] = pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1285 for (y = 0; y < sps->min_cb_height; y++) {
1286 for (x = 0; x < sps->min_cb_width; x++) {
1287 int tb_x = x >> sps->log2_diff_max_min_coding_block_size;
1288 int tb_y = y >> sps->log2_diff_max_min_coding_block_size;
1289 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1290 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1291 (sps->log2_diff_max_min_coding_block_size * 2);
1292 for (i = 0; i < sps->log2_diff_max_min_coding_block_size; i++) {
1294 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1296 pps->min_cb_addr_zs[y * sps->min_cb_width + x] = val;
1300 log2_diff_ctb_min_tb_size = sps->log2_ctb_size - sps->log2_min_tb_size;
1301 for (y = 0; y < sps->min_tb_height; y++) {
1302 for (x = 0; x < sps->min_tb_width; x++) {
1303 int tb_x = x >> log2_diff_ctb_min_tb_size;
1304 int tb_y = y >> log2_diff_ctb_min_tb_size;
1305 int ctb_addr_rs = sps->ctb_width * tb_y + tb_x;
1306 int val = pps->ctb_addr_rs_to_ts[ctb_addr_rs] <<
1307 (log2_diff_ctb_min_tb_size * 2);
1308 for (i = 0; i < log2_diff_ctb_min_tb_size; i++) {
1310 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1312 pps->min_tb_addr_zs[y * sps->min_tb_width + x] = val;
1316 av_buffer_unref(&s->pps_list[pps_id]);
1317 s->pps_list[pps_id] = pps_buf;
1322 av_buffer_unref(&pps_buf);