FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/hevc/ps.c
Date: 2025-03-08 20:38:41
Exec Total Coverage
Lines: 1077 1519 70.9%
Functions: 29 30 96.7%
Branches: 658 1033 63.7%
Line Branch Exec Source
1 /*
2 * HEVC Parameter Set decoding
3 *
4 * Copyright (C) 2012 - 2013 Guillaume Martres
5 * Copyright (C) 2012 - 2013 Mickael Raulet
6 * Copyright (C) 2012 - 2013 Gildas Cocherel
7 * Copyright (C) 2013 Vittorio Giovara
8 *
9 * This file is part of FFmpeg.
10 *
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.
15 *
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.
20 *
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
24 */
25
26 #include "libavutil/imgutils.h"
27 #include "libavutil/mem.h"
28 #include "golomb.h"
29 #include "h2645_vui.h"
30 #include "data.h"
31 #include "ps.h"
32 #include "profiles.h"
33 #include "libavutil/refstruct.h"
34
35 static const uint8_t default_scaling_list_intra[] = {
36 16, 16, 16, 16, 17, 18, 21, 24,
37 16, 16, 16, 16, 17, 19, 22, 25,
38 16, 16, 17, 18, 20, 22, 25, 29,
39 16, 16, 18, 21, 24, 27, 31, 36,
40 17, 17, 20, 24, 30, 35, 41, 47,
41 18, 19, 22, 27, 35, 44, 54, 65,
42 21, 22, 25, 31, 41, 54, 70, 88,
43 24, 25, 29, 36, 47, 65, 88, 115
44 };
45
46 static const uint8_t default_scaling_list_inter[] = {
47 16, 16, 16, 16, 17, 18, 20, 24,
48 16, 16, 16, 17, 18, 20, 24, 25,
49 16, 16, 17, 18, 20, 24, 25, 28,
50 16, 17, 18, 20, 24, 25, 28, 33,
51 17, 18, 20, 24, 25, 28, 33, 41,
52 18, 20, 24, 25, 28, 33, 41, 54,
53 20, 24, 25, 28, 33, 41, 54, 71,
54 24, 25, 28, 33, 41, 54, 71, 91
55 };
56
57 static const uint8_t hevc_sub_width_c[] = {
58 1, 2, 2, 1
59 };
60
61 static const uint8_t hevc_sub_height_c[] = {
62 1, 2, 1, 1
63 };
64
65 732 static void remove_sps(HEVCParamSets *s, int id)
66 {
67 int i;
68
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 732 if (s->sps_list[id]) {
69 /* drop all PPS that depend on this SPS */
70
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 1170 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
71
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 1152 if (s->pps_list[i] && s->pps_list[i]->sps_id == id)
72 18 av_refstruct_unref(&s->pps_list[i]);
73
74 18 av_refstruct_unref(&s->sps_list[id]);
75 }
76 732 }
77
78 689 static void remove_vps(HEVCParamSets *s, int id)
79 {
80 int i;
81
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 689 if (s->vps_list[id]) {
82
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 153 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
83
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 144 if (s->sps_list[i] && s->sps_list[i]->vps_id == id)
84 10 remove_sps(s, i);
85 9 av_refstruct_unref(&s->vps_list[id]);
86 }
87 689 }
88
89 13499 int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
90 ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
91 {
92 int delta_poc;
93 13499 int k0 = 0;
94 13499 int k = 0;
95 int i;
96
97 13499 rps->used = 0;
98 13499 rps->rps_predict = 0;
99
100
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 13499 if (rps != sps->st_rps && sps->nb_st_rps)
101 12163 rps->rps_predict = get_bits1(gb);
102
103
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 13499 if (rps->rps_predict) {
104 const ShortTermRPS *rps_ridx;
105 8087 uint8_t used[32] = { 0 };
106 int delta_rps;
107
108
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 8087 if (is_slice_header) {
109 699 rps->delta_idx = get_ue_golomb_long(gb) + 1;
110
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 699 if (rps->delta_idx > sps->nb_st_rps) {
111 ✗ av_log(avctx, AV_LOG_ERROR,
112 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
113 ✗ rps->delta_idx, sps->nb_st_rps);
114 ✗ return AVERROR_INVALIDDATA;
115 }
116 699 rps_ridx = &sps->st_rps[sps->nb_st_rps - rps->delta_idx];
117 699 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
118 } else
119 7388 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
120
121 8087 rps->delta_rps_sign = get_bits1(gb);
122 8087 rps->abs_delta_rps = get_ue_golomb_long(gb) + 1;
123
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 8087 if (rps->abs_delta_rps > 32768) {
124 ✗ av_log(avctx, AV_LOG_ERROR,
125 "Invalid value of abs_delta_rps: %d\n",
126 ✗ rps->abs_delta_rps);
127 ✗ return AVERROR_INVALIDDATA;
128 }
129 8087 delta_rps = (1 - (rps->delta_rps_sign << 1)) * rps->abs_delta_rps;
130
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 43179 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
131 35092 used[k] = get_bits1(gb);
132
133 35092 rps->use_delta = 0;
134
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 35092 if (!used[k])
135 6996 rps->use_delta = get_bits1(gb);
136
137
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 35092 if (used[k] || rps->use_delta) {
138
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 28146 if (i < rps_ridx->num_delta_pocs)
139 22222 delta_poc = delta_rps + rps_ridx->delta_poc[i];
140 else
141 5924 delta_poc = delta_rps;
142 28146 rps->delta_poc[k] = delta_poc;
143
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 28146 if (delta_poc < 0)
144 19284 k0++;
145 28146 k++;
146 }
147 }
148
149
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 8087 if (k >= FF_ARRAY_ELEMS(used)) {
150 ✗ av_log(avctx, AV_LOG_ERROR,
151 "Invalid num_delta_pocs: %d\n", k);
152 ✗ return AVERROR_INVALIDDATA;
153 }
154
155 8087 rps->num_delta_pocs = k;
156 8087 rps->num_negative_pics = k0;
157 // sort in increasing order (smallest first)
158
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 8087 if (rps->num_delta_pocs != 0) {
159 int u, tmp;
160
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 28146 for (i = 1; i < rps->num_delta_pocs; i++) {
161 20059 delta_poc = rps->delta_poc[i];
162 20059 u = used[i];
163
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 57388 for (k = i - 1; k >= 0; k--) {
164 37329 tmp = rps->delta_poc[k];
165
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 37329 if (delta_poc < tmp) {
166 11761 rps->delta_poc[k + 1] = tmp;
167 11761 used[k + 1] = used[k];
168 11761 rps->delta_poc[k] = delta_poc;
169 11761 used[k] = u;
170 }
171 }
172 }
173 }
174
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 8087 if ((rps->num_negative_pics >> 1) != 0) {
175 int u;
176 6099 k = rps->num_negative_pics - 1;
177 // flip the negative values to largest first
178
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 14007 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
179 7908 delta_poc = rps->delta_poc[i];
180 7908 u = used[i];
181 7908 rps->delta_poc[i] = rps->delta_poc[k];
182 7908 used[i] = used[k];
183 7908 rps->delta_poc[k] = delta_poc;
184 7908 used[k] = u;
185 7908 k--;
186 }
187 }
188
189
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 266871 for (unsigned i = 0; i < FF_ARRAY_ELEMS(used); i++)
190 258784 rps->used |= (uint32_t)used[i] << i;
191 } else {
192 unsigned int nb_positive_pics;
193
194 5412 rps->num_negative_pics = get_ue_golomb_long(gb);
195 5412 nb_positive_pics = get_ue_golomb_long(gb);
196
197
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 5412 if (rps->num_negative_pics >= HEVC_MAX_REFS ||
198 nb_positive_pics >= HEVC_MAX_REFS) {
199 ✗ av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
200 ✗ return AVERROR_INVALIDDATA;
201 }
202
203 5412 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
204
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 5412 if (rps->num_delta_pocs) {
205 4839 int prev = 0;
206
207
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 19204 for (i = 0; i < rps->num_negative_pics; i++) {
208 14365 delta_poc = get_ue_golomb_long(gb) + 1;
209
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 14365 if (delta_poc < 1 || delta_poc > 32768) {
210 ✗ av_log(avctx, AV_LOG_ERROR,
211 "Invalid value of delta_poc: %d\n",
212 delta_poc);
213 ✗ return AVERROR_INVALIDDATA;
214 }
215 14365 prev -= delta_poc;
216 14365 rps->delta_poc[i] = prev;
217 14365 rps->used |= get_bits1(gb) * (1 << i);
218 }
219 4839 prev = 0;
220
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 6074 for (i = 0; i < nb_positive_pics; i++) {
221 1235 delta_poc = get_ue_golomb_long(gb) + 1;
222
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 1235 if (delta_poc < 1 || delta_poc > 32768) {
223 ✗ av_log(avctx, AV_LOG_ERROR,
224 "Invalid value of delta_poc: %d\n",
225 delta_poc);
226 ✗ return AVERROR_INVALIDDATA;
227 }
228 1235 prev += delta_poc;
229 1235 rps->delta_poc[rps->num_negative_pics + i] = prev;
230 1235 rps->used |= get_bits1(gb) * (1 << (rps->num_negative_pics + i));
231 }
232 }
233 }
234 13499 return 0;
235 }
236
237
238 1900 static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
239 PTLCommon *ptl)
240 {
241 1900 const char *profile_name = NULL;
242 int i;
243
244
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 1900 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 43 + 1)
245 ✗ return -1;
246
247 1900 ptl->profile_space = get_bits(gb, 2);
248 1900 ptl->tier_flag = get_bits1(gb);
249 1900 ptl->profile_idc = get_bits(gb, 5);
250
251 #if !CONFIG_SMALL
252
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 2742 for (int i = 0; ff_hevc_profiles[i].profile != AV_PROFILE_UNKNOWN; i++)
253
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 2702 if (ff_hevc_profiles[i].profile == ptl->profile_idc) {
254 1860 profile_name = ff_hevc_profiles[i].name;
255 1860 break;
256 }
257 #endif
258
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 1900 av_log(avctx, profile_name ? AV_LOG_DEBUG : AV_LOG_WARNING,
259 "%s profile bitstream\n", profile_name ? profile_name : "Unknown");
260
261
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 62700 for (i = 0; i < 32; i++) {
262 60800 ptl->profile_compatibility_flag[i] = get_bits1(gb);
263
264
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 60800 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
265 32 ptl->profile_idc = i;
266 }
267 1900 ptl->progressive_source_flag = get_bits1(gb);
268 1900 ptl->interlaced_source_flag = get_bits1(gb);
269 1900 ptl->non_packed_constraint_flag = get_bits1(gb);
270 1900 ptl->frame_only_constraint_flag = get_bits1(gb);
271
272 #define check_profile_idc(idc) \
273 ptl->profile_idc == idc || ptl->profile_compatibility_flag[idc]
274
275
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 1900 if (check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(6) ||
276
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 1765 check_profile_idc(7) || check_profile_idc(8) || check_profile_idc(9) ||
277
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 1765 check_profile_idc(10)) {
278
279 135 ptl->max_12bit_constraint_flag = get_bits1(gb);
280 135 ptl->max_10bit_constraint_flag = get_bits1(gb);
281 135 ptl->max_8bit_constraint_flag = get_bits1(gb);
282 135 ptl->max_422chroma_constraint_flag = get_bits1(gb);
283 135 ptl->max_420chroma_constraint_flag = get_bits1(gb);
284 135 ptl->max_monochrome_constraint_flag = get_bits1(gb);
285 135 ptl->intra_constraint_flag = get_bits1(gb);
286 135 ptl->one_picture_only_constraint_flag = get_bits1(gb);
287 135 ptl->lower_bit_rate_constraint_flag = get_bits1(gb);
288
289
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 135 if (check_profile_idc(5) || check_profile_idc(9) || check_profile_idc(10)) {
290 8 ptl->max_14bit_constraint_flag = get_bits1(gb);
291 8 skip_bits_long(gb, 33); // XXX_reserved_zero_33bits[0..32]
292 } else {
293 127 skip_bits_long(gb, 34); // XXX_reserved_zero_34bits[0..33]
294 }
295
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 1765 } else if (check_profile_idc(2)) {
296 1514 skip_bits(gb, 7);
297 1514 ptl->one_picture_only_constraint_flag = get_bits1(gb);
298 1514 skip_bits_long(gb, 35); // XXX_reserved_zero_35bits[0..34]
299 } else {
300 251 skip_bits_long(gb, 43); // XXX_reserved_zero_43bits[0..42]
301 }
302
303
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 1900 if (check_profile_idc(1) || check_profile_idc(2) || check_profile_idc(3) ||
304
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 135 check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(9))
305 1877 ptl->inbld_flag = get_bits1(gb);
306 else
307 23 skip_bits1(gb);
308 #undef check_profile_idc
309
310 1900 return 0;
311 }
312
313 1883 static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
314 int profile_present, PTL *ptl, int max_num_sub_layers)
315 {
316 1883 int i, status = 0;
317
318
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 1883 if (profile_present) {
319 1858 status = decode_profile_tier_level(gb, avctx, &ptl->general_ptl);
320 } else {
321 25 memset(&ptl->general_ptl, 0, sizeof(ptl->general_ptl));
322 }
323
324
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 1883 if (status < 0 || get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
325 ✗ av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
326 ✗ return -1;
327 }
328
329 1883 ptl->general_ptl.level_idc = get_bits(gb, 8);
330
331
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 2186 for (i = 0; i < max_num_sub_layers - 1; i++) {
332 303 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
333 303 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
334 }
335
336
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 1883 if (max_num_sub_layers - 1> 0)
337
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 1074 for (i = max_num_sub_layers - 1; i < 8; i++)
338 921 skip_bits(gb, 2); // reserved_zero_2bits[i]
339
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 2186 for (i = 0; i < max_num_sub_layers - 1; i++) {
340
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 345 if (ptl->sub_layer_profile_present_flag[i] &&
341 42 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
342 ✗ av_log(avctx, AV_LOG_ERROR,
343 "PTL information for sublayer %i too short\n", i);
344 ✗ return -1;
345 }
346
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 303 if (ptl->sub_layer_level_present_flag[i]) {
347
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 42 if (get_bits_left(gb) < 8) {
348 ✗ av_log(avctx, AV_LOG_ERROR,
349 "Not enough data for sublayer %i level_idc\n", i);
350 ✗ return -1;
351 } else
352 42 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
353 }
354 }
355
356 1883 return 0;
357 }
358
359 106 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
360 HEVCSublayerHdrParams *par, int subpic_params_present)
361 {
362 int i;
363
364
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 212 for (i = 0; i < nb_cpb; i++) {
365 106 par->bit_rate_value_minus1[i] = get_ue_golomb_long(gb);
366 106 par->cpb_size_value_minus1[i] = get_ue_golomb_long(gb);
367
368
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 106 if (subpic_params_present) {
369 34 par->cpb_size_du_value_minus1[i] = get_ue_golomb_long(gb);
370 34 par->bit_rate_du_value_minus1[i] = get_ue_golomb_long(gb);
371 }
372
373 106 par->cbr_flag |= get_bits1(gb) << i;
374 }
375 106 }
376
377 58 static int decode_hrd(GetBitContext *gb, int common_inf_present,
378 HEVCHdrParams *hdr, int max_sublayers)
379 {
380
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 58 if (common_inf_present) {
381 58 hdr->nal_hrd_parameters_present_flag = get_bits1(gb);
382 58 hdr->vcl_hrd_parameters_present_flag = get_bits1(gb);
383
384
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 58 if (hdr->nal_hrd_parameters_present_flag ||
385 ✗ hdr->vcl_hrd_parameters_present_flag) {
386 58 hdr->sub_pic_hrd_params_present_flag = get_bits1(gb);
387
388
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 58 if (hdr->sub_pic_hrd_params_present_flag) {
389 17 hdr->tick_divisor_minus2 = get_bits(gb, 8);
390 17 hdr->du_cpb_removal_delay_increment_length_minus1 = get_bits(gb, 5);
391 17 hdr->sub_pic_cpb_params_in_pic_timing_sei_flag = get_bits1(gb);
392 17 hdr->dpb_output_delay_du_length_minus1 = get_bits(gb, 5);
393 }
394
395 58 hdr->bit_rate_scale = get_bits(gb, 4);
396 58 hdr->cpb_size_scale = get_bits(gb, 4);
397
398
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 58 if (hdr->sub_pic_hrd_params_present_flag)
399 17 hdr->cpb_size_du_scale = get_bits(gb, 4);
400
401 58 hdr->initial_cpb_removal_delay_length_minus1 = get_bits(gb, 5);
402 58 hdr->au_cpb_removal_delay_length_minus1 = get_bits(gb, 5);
403 58 hdr->dpb_output_delay_length_minus1 = get_bits(gb, 5);
404 }
405 }
406
407
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 116 for (int i = 0; i < max_sublayers; i++) {
408 58 unsigned fixed_pic_rate_general_flag = get_bits1(gb);
409 58 unsigned fixed_pic_rate_within_cvs_flag = 0;
410 58 unsigned low_delay_hrd_flag = 0;
411 58 hdr->flags.fixed_pic_rate_general_flag |= fixed_pic_rate_general_flag << i;
412
413
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 58 if (!fixed_pic_rate_general_flag)
414 23 fixed_pic_rate_within_cvs_flag = get_bits1(gb);
415 58 hdr->flags.fixed_pic_rate_within_cvs_flag |= fixed_pic_rate_within_cvs_flag << i;
416
417
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 58 if (fixed_pic_rate_within_cvs_flag || fixed_pic_rate_general_flag)
418 35 hdr->elemental_duration_in_tc_minus1[i] = get_ue_golomb_long(gb);
419 else
420 23 low_delay_hrd_flag = get_bits1(gb);
421 58 hdr->flags.low_delay_hrd_flag |= low_delay_hrd_flag << i;
422
423
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 58 if (!low_delay_hrd_flag) {
424 58 unsigned cpb_cnt_minus1 = get_ue_golomb_long(gb);
425
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 58 if (cpb_cnt_minus1 > 31) {
426 ✗ av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n",
427 cpb_cnt_minus1);
428 ✗ return AVERROR_INVALIDDATA;
429 }
430 58 hdr->cpb_cnt_minus1[i] = cpb_cnt_minus1;
431 }
432
433
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 58 if (hdr->nal_hrd_parameters_present_flag)
434 58 decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i]+1, &hdr->nal_params[i],
435 58 hdr->sub_pic_hrd_params_present_flag);
436
437
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 58 if (hdr->vcl_hrd_parameters_present_flag)
438 48 decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i]+1, &hdr->vcl_params[i],
439 48 hdr->sub_pic_hrd_params_present_flag);
440 }
441
442 58 return 0;
443 }
444
445 689 static void hevc_vps_free(AVRefStructOpaque opaque, void *obj)
446 {
447 689 HEVCVPS *vps = obj;
448
449 689 av_freep(&vps->hdr);
450 689 av_freep(&vps->data);
451 689 }
452
453 enum DependencyType {
454 HEVC_DEP_TYPE_SAMPLE = 0,
455 HEVC_DEP_TYPE_MV = 1,
456 HEVC_DEP_TYPE_BOTH = 2,
457 };
458
459 25 static int decode_vps_ext(GetBitContext *gb, AVCodecContext *avctx, HEVCVPS *vps,
460 uint64_t layer1_id_included)
461 {
462 PTL ptl_dummy;
463 25 uint8_t max_sub_layers[HEVC_MAX_LAYERS] = {1, 1};
464 25 uint8_t dimension_id_len[16] = {0};
465 25 uint8_t dimension_id[16] = {0};
466 unsigned n;
467
468 int splitting_flag, view_id_len, num_add_olss, num_scalability_types,
469 default_output_layer_idc, direct_dep_type_len, direct_dep_type,
470 sub_layers_max_present, sub_layer_flag_info_present_flag, nb_ptl;
471 unsigned non_vui_extension_length;
472
473
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 25 if (vps->vps_max_layers == 1) {
474 ✗ av_log(avctx, AV_LOG_VERBOSE, "Ignoring VPS extensions with a single layer\n");
475 ✗ return 0;
476 }
477
478
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 25 if (vps->vps_max_layers > 2) {
479 ✗ av_log(avctx, AV_LOG_ERROR,
480 "VPS has %d layers, only 2 layers are supported\n",
481 vps->vps_max_layers);
482 ✗ return AVERROR_PATCHWELCOME;
483 }
484
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 25 if (vps->vps_num_layer_sets > 2) {
485 ✗ av_log(avctx, AV_LOG_ERROR,
486 "VPS has %d layer sets, only 2 layer sets are supported\n",
487 vps->vps_num_layer_sets);
488 ✗ return AVERROR_PATCHWELCOME;
489 }
490
491 25 align_get_bits(gb);
492
493 /**
494 * For stereoscopic MV-HEVC, the following simplifying assumptions are made:
495 *
496 * - vps_max_layers = 2 (one base layer, one multiview layer)
497 * - vps_num_layer_sets = 2 (one output layer set for each view)
498 * - NumScalabilityTypes = 1 (only HEVC_SCALABILITY_MULTIVIEW)
499 * - direct_dependency_flag[1][0] = 1 (second layer depends on first)
500 * - num_add_olss = 0 (no extra output layer sets)
501 * - default_output_layer_idc = 0 (1:1 mapping between OLSs and layers)
502 * - layer_id_included_flag[1] = {1, 1} (consequence of layer dependencies)
503 * - vps_num_rep_formats_minus1 = 0 (all layers have the same size)
504 *
505 * Which results in the following derived variables:
506 * - ViewOrderIdx = {0, 1}
507 * - NumViews = 2
508 * - DependencyFlag[1][0] = 1
509 * - NumDirectRefLayers = {0, 1}
510 * - NumRefLayers = {0, 1}
511 * - NumPredictedLayers = {1, 0}
512 * - NumIndependentLayers = 1
513 * - NumLayersInTreePartition = {2}
514 * - NumLayerSets = 2
515 * - NumOutputLayerSets = 2
516 * - OlsIdxToLsIdx = {0, 1}
517 * - LayerIdxInVps = {0, 1}
518 * - NumLayersInIdList = {1, 2}
519 * - NumNecessaryLayers = {1, 2}
520 * - NecessaryLayerFlag = {{1, 0}, {1, 1}}
521 * - NumOutputLayersInOutputLayerSet = {1, 2}
522 * - OutputLayerFlag = {{1, 0}, {1, 1}}
523 */
524 25 vps->nb_layers = 2;
525
526 /* vps_base_layer_internal_flag is true has been checked before */
527
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 25 if (parse_ptl(gb, avctx, 0, &ptl_dummy, vps->vps_max_sub_layers) < 0)
528 ✗ return AVERROR_INVALIDDATA;
529
530 25 splitting_flag = get_bits1(gb);
531 25 vps->scalability_mask_flag = get_bits(gb, 16);
532 25 num_scalability_types = av_popcount(vps->scalability_mask_flag);
533
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 25 if (!num_scalability_types) {
534 ✗ av_log(avctx, AV_LOG_ERROR, "Missing scalability mask\n");
535 ✗ return AVERROR_INVALIDDATA;
536 }
537
538
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 25 if (!(vps->scalability_mask_flag &
539 (HEVC_SCALABILITY_MULTIVIEW | HEVC_SCALABILITY_AUXILIARY))) {
540 ✗ av_log(avctx, AV_LOG_ERROR, "Scalability type %d not supported\n",
541 ✗ 15 - ff_ctz(vps->scalability_mask_flag));
542 ✗ return AVERROR_PATCHWELCOME;
543 }
544 // x265 specify MULTIVIEW when the stream really is alpha video only.
545
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 25 if (num_scalability_types > 1)
546 ✗ av_log(avctx, AV_LOG_WARNING, "Multiple scalability types presented\n");
547
548 25 n = 0;
549
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 50 for (int i = 0; i < num_scalability_types - splitting_flag; i++) {
550 25 dimension_id_len[i] = get_bits(gb, 3) + 1;
551 25 n += dimension_id_len[i];
552 }
553
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 25 if (splitting_flag)
554 ✗ dimension_id_len[num_scalability_types - 1] = 5 - n;
555
556
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 25 if (get_bits1(gb)) { /* vps_nuh_layer_id_present_flag */
557 11 int layer_id_in_nuh = get_bits(gb, 6);
558
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 11 if (layer_id_in_nuh >= FF_ARRAY_ELEMS(vps->layer_idx)) {
559 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid layer_id_in_nuh[1]: %d\n",
560 layer_id_in_nuh);
561 ✗ return AVERROR_INVALIDDATA;
562 }
563 11 vps->layer_idx[layer_id_in_nuh] = 1;
564 11 vps->layer_id_in_nuh[1] = layer_id_in_nuh;
565 } else {
566 14 vps->layer_idx[1] = 1;
567 14 vps->layer_id_in_nuh[1] = 1;
568 }
569
570
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 25 if (!splitting_flag) {
571 25 int index = 0;
572
573
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 50 for (int i = 0; i < num_scalability_types; i++)
574 25 dimension_id[i] = get_bits(gb, dimension_id_len[i]);
575
576
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 25 if (vps->scalability_mask_flag & HEVC_SCALABILITY_MULTIVIEW)
577 23 index++;
578
579 /* AuxId 1 is alpha, 2 is depth. Only support alpha */
580
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 25 if (vps->scalability_mask_flag & HEVC_SCALABILITY_AUXILIARY &&
581
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 2 dimension_id[index] != HEVC_AUX_ALPHA) {
582 ✗ av_log(avctx, AV_LOG_WARNING,
583 "Unsupported dimension_id %d for HEVC_SCALABILITY_AUXILIARY\n",
584 ✗ dimension_id[index]);
585 ✗ return AVERROR_PATCHWELCOME;
586 }
587 }
588
589 25 view_id_len = get_bits(gb, 4);
590
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 25 if (view_id_len) {
591
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 23 n = (vps->scalability_mask_flag & HEVC_SCALABILITY_MULTIVIEW) ? 2 : 1;
592
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 69 for (int i = 0; i < n; i++)
593 46 vps->view_id[i] = get_bits(gb, view_id_len);
594 }
595
596 /* direct_dependency_flag */
597 25 vps->num_direct_ref_layers[1] = get_bits1(gb);
598
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 25 if (!vps->num_direct_ref_layers[1]) {
599 2 vps->num_add_layer_sets = get_ue_golomb(gb);
600
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 2 if (vps->num_add_layer_sets > 1) {
601 ✗ av_log(avctx, AV_LOG_WARNING,
602 ✗ "Unsupported num_add_layer_sets: %d\n", vps->num_add_layer_sets);
603 ✗ return AVERROR_PATCHWELCOME;
604 }
605
606
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 2 if (vps->num_add_layer_sets) {
607 /* highest_layer_idx_plus1 */
608
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 2 if (!get_bits1(gb))
609 ✗ return AVERROR_PATCHWELCOME;
610 }
611 }
612 25 vps->num_output_layer_sets = vps->vps_num_layer_sets + vps->num_add_layer_sets;
613
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 25 if (vps->num_output_layer_sets != 2)
614 ✗ return AVERROR_INVALIDDATA;
615
616 25 sub_layers_max_present = get_bits1(gb); // vps_sub_layers_max_minus1_present_flag
617
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 25 if (sub_layers_max_present) {
618 ✗ for (int i = 0; i < vps->vps_max_layers; i++)
619 ✗ max_sub_layers[i] = sub_layers_max_present ? get_bits(gb, 3) + 1 :
620 ✗ vps->vps_max_sub_layers;
621 }
622
623
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 25 if (get_bits1(gb) /* max_tid_ref_present_flag */)
624 ✗ skip_bits(gb, 3); // max_tid_il_ref_pics_plus1
625
626 25 vps->default_ref_layers_active = get_bits1(gb);
627
628 25 nb_ptl = get_ue_golomb(gb) + 1;
629 /* idx [0] is signalled in base VPS, idx [1] is signalled at the
630 * start of VPS extension, indices 2+ are signalled here;
631 * we ignore all but the first one anyway */
632
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 48 for (int i = 2; i < nb_ptl; i++) {
633 23 int profile_present = get_bits1(gb);
634
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 23 if (parse_ptl(gb, avctx, profile_present, &ptl_dummy, vps->vps_max_sub_layers) < 0)
635 ✗ return AVERROR_INVALIDDATA;
636 }
637
638 25 num_add_olss = get_ue_golomb(gb);
639
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 25 if (num_add_olss != 0) {
640 /* Since we don't implement support for independent output layer sets
641 * and auxiliary layers, this should never nonzero */
642 ✗ av_log(avctx, AV_LOG_ERROR, "Unexpected num_add_olss: %d\n", num_add_olss);
643 ✗ return AVERROR_PATCHWELCOME;
644 }
645
646 25 default_output_layer_idc = get_bits(gb, 2);
647
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 25 if (default_output_layer_idc != 0) {
648 ✗ av_log(avctx, AV_LOG_WARNING, "Unsupported default_output_layer_idc: %d\n",
649 default_output_layer_idc);
650 ✗ return AVERROR_PATCHWELCOME;
651 }
652
653 /* Consequence of established layer dependencies */
654
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 25 if (layer1_id_included &&
655 23 layer1_id_included != ((1 << vps->layer_id_in_nuh[0]) |
656
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 23 (1 << vps->layer_id_in_nuh[1]))) {
657 ✗ av_log(avctx, AV_LOG_ERROR,
658 "Dependent layer not included in layer ID?\n");
659 ✗ return AVERROR_PATCHWELCOME;
660 }
661
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 25 if (!layer1_id_included)
662 2 vps->ols[1] = 2;
663 else
664 23 vps->ols[1] = 3;
665
666
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 25 if (vps->vps_num_layer_sets == 1 || default_output_layer_idc == 2)
667 2 skip_bits1(gb);
668
669
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 73 for (int j = 0; j < av_popcount64(vps->ols[1]); j++) {
670 48 int ptl_idx = get_bits(gb, av_ceil_log2(nb_ptl));
671
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 48 if (ptl_idx >= nb_ptl) {
672 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid PTL index: %d\n", ptl_idx);
673 ✗ return AVERROR_INVALIDDATA;
674 }
675 }
676
677
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 25 if (get_ue_golomb_31(gb) != 0 /* vps_num_rep_formats_minus1 */) {
678 ✗ av_log(avctx, AV_LOG_ERROR, "Unexpected extra rep formats\n");
679 ✗ return AVERROR_INVALIDDATA;
680 }
681
682 25 vps->rep_format.pic_width_in_luma_samples = get_bits(gb, 16);
683 25 vps->rep_format.pic_height_in_luma_samples = get_bits(gb, 16);
684
685
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 25 if (!get_bits1(gb) /* chroma_and_bit_depth_vps_present_flag */) {
686 ✗ av_log(avctx, AV_LOG_ERROR,
687 "chroma_and_bit_depth_vps_present_flag=0 in first rep_format\n");
688 ✗ return AVERROR_INVALIDDATA;
689 }
690 25 vps->rep_format.chroma_format_idc = get_bits(gb, 2);
691
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 25 if (vps->rep_format.chroma_format_idc == 3)
692 ✗ vps->rep_format.separate_colour_plane_flag = get_bits1(gb);
693 25 vps->rep_format.bit_depth_luma = get_bits(gb, 4) + 8;
694 25 vps->rep_format.bit_depth_chroma = get_bits(gb, 4) + 8;
695
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 25 if (vps->rep_format.bit_depth_luma > 16 ||
696
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 25 vps->rep_format.bit_depth_chroma > 16 ||
697
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 25 vps->rep_format.bit_depth_luma != vps->rep_format.bit_depth_chroma) {
698 ✗ av_log(avctx, AV_LOG_ERROR, "Unsupported bit depth: %"PRIu8" %"PRIu8"\n",
699 ✗ vps->rep_format.bit_depth_luma, vps->rep_format.bit_depth_chroma);
700 ✗ return AVERROR_PATCHWELCOME;
701 }
702
703
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 25 if (get_bits1(gb) /* conformance_window_vps_flag */) {
704 25 int vert_mult = hevc_sub_height_c[vps->rep_format.chroma_format_idc];
705 25 int horiz_mult = hevc_sub_width_c[vps->rep_format.chroma_format_idc];
706 25 vps->rep_format.conf_win_left_offset = get_ue_golomb(gb) * horiz_mult;
707 25 vps->rep_format.conf_win_right_offset = get_ue_golomb(gb) * horiz_mult;
708 25 vps->rep_format.conf_win_top_offset = get_ue_golomb(gb) * vert_mult;
709 25 vps->rep_format.conf_win_bottom_offset = get_ue_golomb(gb) * vert_mult;
710 }
711
712 25 vps->max_one_active_ref_layer = get_bits1(gb);
713 25 vps->poc_lsb_aligned = get_bits1(gb);
714
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 25 if (!vps->num_direct_ref_layers[1])
715 2 vps->poc_lsb_not_present = get_bits1(gb) << 1;
716
717 25 sub_layer_flag_info_present_flag = get_bits1(gb);
718
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 50 for (int j = 0; j < FFMAX(max_sub_layers[0], max_sub_layers[1]); j++) {
719 25 int sub_layer_dpb_info_present_flag = 1;
720
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 25 if (j > 0 && sub_layer_flag_info_present_flag)
721 ✗ sub_layer_dpb_info_present_flag = get_bits1(gb);
722
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 25 if (sub_layer_dpb_info_present_flag) {
723
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 73 for (int k = 0; k < av_popcount64(vps->ols[1]); k++)
724 48 vps->dpb_size.max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
725 25 vps->dpb_size.max_num_reorder_pics = get_ue_golomb_long(gb);
726 25 vps->dpb_size.max_latency_increase = get_ue_golomb_long(gb) - 1;
727 }
728 }
729
730 25 direct_dep_type_len = get_ue_golomb_31(gb) + 2;
731
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 25 if (direct_dep_type_len > 32) {
732 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid direct_dep_type_len: %d\n",
733 direct_dep_type_len);
734 ✗ return AVERROR_INVALIDDATA;
735 }
736
737 /* direct_depenency_all_layers_flag */
738
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 25 if (get_bits1(gb)) {
739 23 direct_dep_type = get_bits_long(gb, direct_dep_type_len);
740
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 23 if (direct_dep_type > HEVC_DEP_TYPE_BOTH) {
741 ✗ av_log(avctx, AV_LOG_WARNING, "Unsupported direct_dep_type: %d\n",
742 direct_dep_type);
743 ✗ return AVERROR_PATCHWELCOME;
744 }
745 }
746
747 25 non_vui_extension_length = get_ue_golomb(gb);
748
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 25 if (non_vui_extension_length > 4096) {
749 ✗ av_log(avctx, AV_LOG_ERROR, "vps_non_vui_extension_length too large: %u\n",
750 non_vui_extension_length);
751 ✗ return AVERROR_INVALIDDATA;
752 }
753 25 skip_bits_long(gb, non_vui_extension_length * 8);
754
755
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 25 if (get_bits1(gb)) // vps_vui_present_flag
756 ✗ av_log(avctx, AV_LOG_WARNING, "VPS VUI not supported\n");
757
758 25 return 0;
759 }
760
761 1151 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
762 HEVCParamSets *ps)
763 {
764 int i;
765 1151 int vps_id = get_bits(gb, 4);
766 1151 ptrdiff_t nal_size = gb->buffer_end - gb->buffer;
767 1151 int ret = AVERROR_INVALIDDATA;
768 1151 uint64_t layer1_id_included = 0;
769 unsigned vps_base_layer_internal_flag, vps_base_layer_available_flag;
770 HEVCVPS *vps;
771
772
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 1151 if (ps->vps_list[vps_id]) {
773 471 const HEVCVPS *vps1 = ps->vps_list[vps_id];
774
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 471 if (vps1->data_size == nal_size &&
775
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 465 !memcmp(vps1->data, gb->buffer, vps1->data_size))
776 462 return 0;
777 }
778
779 689 vps = av_refstruct_alloc_ext(sizeof(*vps), 0, NULL, hevc_vps_free);
780
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 689 if (!vps)
781 ✗ return AVERROR(ENOMEM);
782
783 689 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
784
785 689 vps->data_size = nal_size;
786 689 vps->data = av_memdup(gb->buffer, nal_size);
787
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 689 if (!vps->data) {
788 ✗ ret = AVERROR(ENOMEM);
789 ✗ goto err;
790 }
791 689 vps->vps_id = vps_id;
792
793 689 vps_base_layer_internal_flag = get_bits1(gb);
794 689 vps_base_layer_available_flag = get_bits1(gb);
795
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 689 if (!vps_base_layer_internal_flag || !vps_base_layer_available_flag) {
796 ✗ av_log(avctx, AV_LOG_ERROR,
797 "vps_base_layer_internal_flag or vps_base_layer_available_flag not set\n");
798 ✗ ret = AVERROR_PATCHWELCOME;
799 ✗ goto err;
800 }
801
802 689 vps->vps_max_layers = get_bits(gb, 6) + 1;
803 689 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
804 689 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
805
806
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 689 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
807 ✗ av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
808 ✗ goto err;
809 }
810
811
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 689 if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) {
812 ✗ av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
813 ✗ vps->vps_max_sub_layers);
814 ✗ goto err;
815 }
816
817
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 689 if (parse_ptl(gb, avctx, 1, &vps->ptl, vps->vps_max_sub_layers) < 0)
818 ✗ goto err;
819
820 689 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
821
822
2/2
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 689 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
823
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 1436 for (; i < vps->vps_max_sub_layers; i++) {
824 747 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
825 747 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
826 747 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
827
828
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 747 if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
829 ✗ av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
830 ✗ vps->vps_max_dec_pic_buffering[i] - 1);
831 ✗ goto err;
832 }
833
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 747 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
834 ✗ av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
835 ✗ vps->vps_num_reorder_pics[i]);
836 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
837 ✗ goto err;
838 }
839 }
840
841 689 vps->vps_max_layer_id = get_bits(gb, 6);
842 689 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
843
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 689 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
844
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 689 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
845 ✗ av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
846 ✗ goto err;
847 }
848
849 689 vps->num_output_layer_sets = 1;
850 689 vps->ols[0] = 1;
851
852 // we support at most 2 layers, so ignore the others
853
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 689 if (vps->vps_num_layer_sets > 1)
854 23 layer1_id_included = get_bits64(gb, vps->vps_max_layer_id + 1); // layer_id_included_flag
855
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 689 if (vps->vps_num_layer_sets > 2)
856 ✗ skip_bits_long(gb, (vps->vps_num_layer_sets - 2) * (vps->vps_max_layer_id + 1));
857
858 689 vps->vps_timing_info_present_flag = get_bits1(gb);
859
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 689 if (vps->vps_timing_info_present_flag) {
860 22 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
861 22 vps->vps_time_scale = get_bits_long(gb, 32);
862 22 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
863
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 22 if (vps->vps_poc_proportional_to_timing_flag)
864 22 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
865 22 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
866
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 22 if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) {
867 ✗ av_log(avctx, AV_LOG_ERROR,
868 ✗ "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
869 ✗ goto err;
870 }
871
872
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 22 if (vps->vps_num_hrd_parameters) {
873 3 vps->hdr = av_calloc(vps->vps_num_hrd_parameters, sizeof(*vps->hdr));
874
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 3 if (!vps->hdr)
875 ✗ goto err;
876 }
877
878
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 25 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
879 3 int common_inf_present = 1;
880
881 3 get_ue_golomb_long(gb); // hrd_layer_set_idx
882
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 3 if (i)
883 ✗ common_inf_present = get_bits1(gb);
884 3 decode_hrd(gb, common_inf_present, &vps->hdr[i],
885 3 vps->vps_max_sub_layers);
886 }
887 }
888
889 689 vps->nb_layers = 1;
890 689 vps->layer_idx[0] = 0;
891
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 43407 for (int i = 1; i < FF_ARRAY_ELEMS(vps->layer_idx); i++)
892 42718 vps->layer_idx[i] = -1;
893
894
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 689 if (vps->vps_max_layers > 1 && get_bits1(gb)) { /* vps_extension_flag */
895 25 int ret = decode_vps_ext(gb, avctx, vps, layer1_id_included);
896
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 25 if (ret == AVERROR_PATCHWELCOME) {
897 ✗ vps->nb_layers = 1;
898 ✗ av_log(avctx, AV_LOG_WARNING, "Ignoring unsupported VPS extension\n");
899 ✗ ret = 0;
900
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 25 } else if (ret < 0)
901 ✗ goto err;
902 }
903
904
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 689 if (get_bits_left(gb) < 0) {
905 ✗ av_log(avctx, AV_LOG_ERROR,
906 ✗ "Overread VPS by %d bits\n", -get_bits_left(gb));
907 ✗ if (ps->vps_list[vps_id])
908 ✗ goto err;
909 }
910
911 689 remove_vps(ps, vps_id);
912 689 ps->vps_list[vps_id] = vps;
913
914 689 return 0;
915
916 ✗ err:
917 ✗ av_refstruct_unref(&vps);
918 ✗ return ret;
919 }
920
921 308 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
922 int apply_defdispwin, HEVCSPS *sps)
923 {
924 308 VUI backup_vui, *vui = &sps->vui;
925 GetBitContext backup;
926 308 int alt = 0;
927
928 308 ff_h2645_decode_common_vui_params(gb, &sps->vui.common, avctx);
929
930
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 308 if (vui->common.video_signal_type_present_flag) {
931
4/4
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 80 if (vui->common.video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
932 7 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
933
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 80 if (vui->common.colour_description_present_flag) {
934
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 68 if (vui->common.matrix_coeffs == AVCOL_SPC_RGB) {
935 ✗ switch (sps->pix_fmt) {
936 ✗ case AV_PIX_FMT_YUV444P:
937 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP;
938 ✗ break;
939 ✗ case AV_PIX_FMT_YUV444P10:
940 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP10;
941 ✗ break;
942 ✗ case AV_PIX_FMT_YUV444P12:
943 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP12;
944 ✗ break;
945 }
946 }
947 }
948 }
949
950 308 vui->neutra_chroma_indication_flag = get_bits1(gb);
951 308 vui->field_seq_flag = get_bits1(gb);
952 308 vui->frame_field_info_present_flag = get_bits1(gb);
953
954 // Backup context in case an alternate header is detected
955 308 memcpy(&backup, gb, sizeof(backup));
956 308 memcpy(&backup_vui, vui, sizeof(backup_vui));
957
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 308 if (get_bits_left(gb) >= 68 && show_bits(gb, 21) == 0x100000) {
958 ✗ vui->default_display_window_flag = 0;
959 ✗ av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
960 } else
961 308 vui->default_display_window_flag = get_bits1(gb);
962
963
2/2
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 308 if (vui->default_display_window_flag) {
964 114 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
965 114 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
966 114 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
967 114 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
968 114 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
969 114 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
970
971
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 114 if (apply_defdispwin &&
972
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 54 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
973 ✗ av_log(avctx, AV_LOG_DEBUG,
974 "discarding vui default display window, "
975 "original values are l:%u r:%u t:%u b:%u\n",
976 vui->def_disp_win.left_offset,
977 vui->def_disp_win.right_offset,
978 vui->def_disp_win.top_offset,
979 vui->def_disp_win.bottom_offset);
980
981 ✗ vui->def_disp_win.left_offset =
982 ✗ vui->def_disp_win.right_offset =
983 ✗ vui->def_disp_win.top_offset =
984 ✗ vui->def_disp_win.bottom_offset = 0;
985 }
986 }
987
988 308 timing_info:
989 308 vui->vui_timing_info_present_flag = get_bits1(gb);
990
991
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 308 if (vui->vui_timing_info_present_flag) {
992
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 117 if( get_bits_left(gb) < 66 && !alt) {
993 // The alternate syntax seem to have timing info located
994 // at where def_disp_win is normally located
995 ✗ av_log(avctx, AV_LOG_WARNING,
996 "Strange VUI timing information, retrying...\n");
997 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
998 ✗ memcpy(gb, &backup, sizeof(backup));
999 ✗ alt = 1;
1000 ✗ goto timing_info;
1001 }
1002 117 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
1003 117 vui->vui_time_scale = get_bits_long(gb, 32);
1004
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 117 if (alt) {
1005 ✗ av_log(avctx, AV_LOG_INFO, "Retry got %"PRIu32"/%"PRIu32" fps\n",
1006 vui->vui_time_scale, vui->vui_num_units_in_tick);
1007 }
1008 117 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
1009
2/2
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 117 if (vui->vui_poc_proportional_to_timing_flag)
1010 38 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
1011 117 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
1012
2/2
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 117 if (vui->vui_hrd_parameters_present_flag)
1013 55 decode_hrd(gb, 1, &sps->hdr, sps->max_sub_layers);
1014 }
1015
1016 308 vui->bitstream_restriction_flag = get_bits1(gb);
1017
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 308 if (vui->bitstream_restriction_flag) {
1018
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 116 if (get_bits_left(gb) < 8 && !alt) {
1019 ✗ av_log(avctx, AV_LOG_WARNING,
1020 "Strange VUI bitstream restriction information, retrying"
1021 " from timing information...\n");
1022 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
1023 ✗ memcpy(gb, &backup, sizeof(backup));
1024 ✗ alt = 1;
1025 ✗ goto timing_info;
1026 }
1027 116 vui->tiles_fixed_structure_flag = get_bits1(gb);
1028 116 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
1029 116 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
1030 116 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
1031 116 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
1032 116 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
1033 116 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
1034 116 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
1035 }
1036
1037
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 308 if (get_bits_left(gb) < 1 && !alt) {
1038 // XXX: Alternate syntax when sps_range_extension_flag != 0?
1039 ✗ av_log(avctx, AV_LOG_WARNING,
1040 "Overread in VUI, retrying from timing information...\n");
1041 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
1042 ✗ memcpy(gb, &backup, sizeof(backup));
1043 ✗ alt = 1;
1044 ✗ goto timing_info;
1045 }
1046 308 }
1047
1048 172 static void set_default_scaling_list_data(ScalingList *sl)
1049 {
1050 int matrixId;
1051
1052
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 1204 for (matrixId = 0; matrixId < 6; matrixId++) {
1053 // 4x4 default is 16
1054 1032 memset(sl->sl[0][matrixId], 16, 16);
1055 1032 sl->sl_dc[0][matrixId] = 16; // default for 16x16
1056 1032 sl->sl_dc[1][matrixId] = 16; // default for 32x32
1057 }
1058 172 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
1059 172 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
1060 172 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
1061 172 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
1062 172 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
1063 172 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
1064 172 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
1065 172 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
1066 172 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
1067 172 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
1068 172 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
1069 172 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
1070 172 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
1071 172 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
1072 172 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
1073 172 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
1074 172 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
1075 172 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
1076 172 }
1077
1078 141 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx,
1079 ScalingList *sl, const HEVCSPS *sps)
1080 {
1081 uint8_t scaling_list_pred_mode_flag;
1082 uint8_t scaling_list_dc_coef[2][6];
1083 int size_id, matrix_id, pos;
1084 int i;
1085
1086
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 705 for (size_id = 0; size_id < 4; size_id++)
1087
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 3384 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
1088 2820 scaling_list_pred_mode_flag = get_bits1(gb);
1089
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 2820 if (!scaling_list_pred_mode_flag) {
1090 759 unsigned int delta = get_ue_golomb_long(gb);
1091 /* Only need to handle non-zero delta. Zero means default,
1092 * which should already be in the arrays. */
1093
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 759 if (delta) {
1094 // Copy from previous array.
1095
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 633 delta *= (size_id == 3) ? 3 : 1;
1096
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 633 if (matrix_id < delta) {
1097 ✗ av_log(avctx, AV_LOG_ERROR,
1098 "Invalid delta in scaling list data: %d.\n", delta);
1099 ✗ return AVERROR_INVALIDDATA;
1100 }
1101
1102
2/2
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 633 memcpy(sl->sl[size_id][matrix_id],
1103 633 sl->sl[size_id][matrix_id - delta],
1104 size_id > 0 ? 64 : 16);
1105
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 633 if (size_id > 1)
1106 127 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
1107 }
1108 } else {
1109 int next_coef, coef_num;
1110 int32_t scaling_list_delta_coef;
1111
1112 2061 next_coef = 8;
1113 2061 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
1114
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 2061 if (size_id > 1) {
1115 959 int scaling_list_coeff_minus8 = get_se_golomb(gb);
1116
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 959 if (scaling_list_coeff_minus8 < -7 ||
1117 scaling_list_coeff_minus8 > 247)
1118 ✗ return AVERROR_INVALIDDATA;
1119 959 scaling_list_dc_coef[size_id - 2][matrix_id] = scaling_list_coeff_minus8 + 8;
1120 959 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
1121 959 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
1122 }
1123
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 105549 for (i = 0; i < coef_num; i++) {
1124
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 103488 if (size_id == 0)
1125 9472 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
1126 9472 ff_hevc_diag_scan4x4_x[i];
1127 else
1128 94016 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
1129 94016 ff_hevc_diag_scan8x8_x[i];
1130
1131 103488 scaling_list_delta_coef = get_se_golomb(gb);
1132 103488 next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256;
1133 103488 sl->sl[size_id][matrix_id][pos] = next_coef;
1134 }
1135 }
1136 }
1137
1138
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 141 if (sps->chroma_format_idc == 3) {
1139
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 2795 for (i = 0; i < 64; i++) {
1140 2752 sl->sl[3][1][i] = sl->sl[2][1][i];
1141 2752 sl->sl[3][2][i] = sl->sl[2][2][i];
1142 2752 sl->sl[3][4][i] = sl->sl[2][4][i];
1143 2752 sl->sl[3][5][i] = sl->sl[2][5][i];
1144 }
1145 43 sl->sl_dc[1][1] = sl->sl_dc[0][1];
1146 43 sl->sl_dc[1][2] = sl->sl_dc[0][2];
1147 43 sl->sl_dc[1][4] = sl->sl_dc[0][4];
1148 43 sl->sl_dc[1][5] = sl->sl_dc[0][5];
1149 }
1150
1151
1152 141 return 0;
1153 }
1154
1155 1172 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
1156 {
1157 const AVPixFmtDescriptor *desc;
1158
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 1172 switch (sps->bit_depth) {
1159 1012 case 8:
1160
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 1012 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
1161
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 1012 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
1162
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 1012 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
1163
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 1012 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
1164 1012 break;
1165 ✗ case 9:
1166 ✗ if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY9;
1167 ✗ if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
1168 ✗ if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
1169 ✗ if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
1170 ✗ break;
1171 137 case 10:
1172
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 137 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10;
1173
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 137 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
1174
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 137 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
1175
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 137 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
1176 137 break;
1177 23 case 12:
1178
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 23 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12;
1179
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 23 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
1180
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 23 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
1181
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 23 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
1182 23 break;
1183 ✗ default:
1184 ✗ av_log(avctx, AV_LOG_ERROR,
1185 "The following bit-depths are currently specified: 8, 9, 10 and 12 bits, "
1186 "chroma_format_idc is %d, depth is %d\n",
1187 sps->chroma_format_idc, sps->bit_depth);
1188 ✗ return AVERROR_INVALIDDATA;
1189 }
1190
1191 1172 desc = av_pix_fmt_desc_get(sps->pix_fmt);
1192
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 1172 if (!desc)
1193 ✗ return AVERROR(EINVAL);
1194
1195 1172 sps->hshift[0] = sps->vshift[0] = 0;
1196 1172 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
1197 1172 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
1198
1199 1172 sps->pixel_shift = sps->bit_depth > 8;
1200
1201 1172 return 0;
1202 }
1203
1204 1172 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
1205 unsigned nuh_layer_id, int apply_defdispwin,
1206 const HEVCVPS * const *vps_list, AVCodecContext *avctx)
1207 {
1208 HEVCWindow *ow;
1209 1172 int ret = 0;
1210 int bit_depth_chroma, num_comps, multi_layer_ext;
1211 int vps_max_sub_layers;
1212 int i;
1213
1214 // Coded parameters
1215
1216 1172 sps->vps_id = get_bits(gb, 4);
1217
1218
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 1172 if (vps_list) {
1219
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 1172 if (!vps_list[sps->vps_id]) {
1220 ✗ av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
1221 sps->vps_id);
1222 ✗ return AVERROR_INVALIDDATA;
1223 }
1224 1172 sps->vps = av_refstruct_ref_c(vps_list[sps->vps_id]);
1225 }
1226
1227 1172 sps->max_sub_layers = get_bits(gb, 3) + 1;
1228
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 1200 multi_layer_ext = nuh_layer_id > 0 &&
1229
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 28 sps->max_sub_layers == HEVC_MAX_SUB_LAYERS + 1;
1230
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 1172 if (multi_layer_ext) {
1231
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 26 if (!sps->vps)
1232 ✗ return AVERROR(EINVAL);
1233
1234 26 sps->max_sub_layers = sps->vps->vps_max_sub_layers;
1235 }
1236 3516 vps_max_sub_layers = sps->vps ? sps->vps->vps_max_sub_layers
1237
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 1172 : FFMIN(sps->max_sub_layers, HEVC_MAX_SUB_LAYERS);
1238
1239
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 1172 if (sps->max_sub_layers > vps_max_sub_layers) {
1240 ✗ av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
1241 sps->max_sub_layers);
1242 ✗ return AVERROR_INVALIDDATA;
1243 }
1244
1245
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 1172 if (!multi_layer_ext) {
1246 1146 sps->temporal_id_nesting = get_bits(gb, 1);
1247
1248
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 1146 if ((ret = parse_ptl(gb, avctx, 1, &sps->ptl, sps->max_sub_layers)) < 0)
1249 ✗ return ret;
1250 } else {
1251
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 26 sps->temporal_id_nesting = sps->max_sub_layers > 1 ?
1252 ✗ sps->vps->vps_max_sub_layers : 1;
1253 }
1254
1255 1172 *sps_id = get_ue_golomb_long(gb);
1256
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 1172 if (*sps_id >= HEVC_MAX_SPS_COUNT) {
1257 ✗ av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
1258 ✗ return AVERROR_INVALIDDATA;
1259 }
1260
1261
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 1172 if (multi_layer_ext) {
1262 26 const RepFormat *rf = &sps->vps->rep_format;
1263
1264
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 26 if (sps->vps->nb_layers == 1) {
1265 ✗ av_log(avctx, AV_LOG_WARNING, "SPS %d references an unsupported VPS extension. Ignoring\n",
1266 *sps_id);
1267 ✗ return AVERROR(ENOSYS);
1268 }
1269
1270
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 26 if (get_bits1(gb) && // update_rep_format_flag
1271 ✗ get_bits(gb, 8)) { // sps_rep_format_idx
1272 ✗ av_log(avctx, AV_LOG_ERROR, "sps_rep_format_idx!=0\n");
1273 ✗ return AVERROR_PATCHWELCOME;
1274 }
1275
1276 26 sps->separate_colour_plane = rf->separate_colour_plane_flag;
1277
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 26 sps->chroma_format_idc = sps->separate_colour_plane ? 0 :
1278 26 rf->chroma_format_idc;
1279 26 sps->bit_depth = rf->bit_depth_luma;
1280 26 sps->width = rf->pic_width_in_luma_samples;
1281 26 sps->height = rf->pic_height_in_luma_samples;
1282
1283 26 sps->pic_conf_win.left_offset = rf->conf_win_left_offset;
1284 26 sps->pic_conf_win.right_offset = rf->conf_win_right_offset;
1285 26 sps->pic_conf_win.top_offset = rf->conf_win_top_offset;
1286 26 sps->pic_conf_win.bottom_offset = rf->conf_win_bottom_offset;
1287
1288 } else {
1289 1146 sps->chroma_format_idc = get_ue_golomb_long(gb);
1290
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 1146 if (sps->chroma_format_idc > 3U) {
1291 ✗ av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
1292 ✗ return AVERROR_INVALIDDATA;
1293 }
1294
1295
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 1146 if (sps->chroma_format_idc == 3)
1296 32 sps->separate_colour_plane = get_bits1(gb);
1297
1298
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 1146 if (sps->separate_colour_plane)
1299 ✗ sps->chroma_format_idc = 0;
1300
1301 1146 sps->width = get_ue_golomb_long(gb);
1302 1146 sps->height = get_ue_golomb_long(gb);
1303
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 1146 if ((ret = av_image_check_size(sps->width,
1304 1146 sps->height, 0, avctx)) < 0)
1305 ✗ return ret;
1306
1307 1146 sps->conformance_window = get_bits1(gb);
1308
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 1146 if (sps->conformance_window) {
1309 943 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
1310 943 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
1311 943 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
1312 943 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
1313 943 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
1314 943 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
1315
1316
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 943 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
1317 ✗ av_log(avctx, AV_LOG_DEBUG,
1318 "discarding sps conformance window, "
1319 "original values are l:%u r:%u t:%u b:%u\n",
1320 sps->pic_conf_win.left_offset,
1321 sps->pic_conf_win.right_offset,
1322 sps->pic_conf_win.top_offset,
1323 sps->pic_conf_win.bottom_offset);
1324
1325 ✗ sps->pic_conf_win.left_offset =
1326 ✗ sps->pic_conf_win.right_offset =
1327 ✗ sps->pic_conf_win.top_offset =
1328 ✗ sps->pic_conf_win.bottom_offset = 0;
1329 }
1330 }
1331
1332 1146 sps->bit_depth = get_ue_golomb_31(gb) + 8;
1333
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 1146 if (sps->bit_depth > 16) {
1334 ✗ av_log(avctx, AV_LOG_ERROR, "Luma bit depth (%d) is out of range\n",
1335 sps->bit_depth);
1336 ✗ return AVERROR_INVALIDDATA;
1337 }
1338 1146 bit_depth_chroma = get_ue_golomb_31(gb) + 8;
1339
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 1146 if (bit_depth_chroma > 16) {
1340 ✗ av_log(avctx, AV_LOG_ERROR, "Chroma bit depth (%d) is out of range\n",
1341 bit_depth_chroma);
1342 ✗ return AVERROR_INVALIDDATA;
1343 }
1344
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 1146 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
1345 ✗ av_log(avctx, AV_LOG_ERROR,
1346 "Luma bit depth (%d) is different from chroma bit depth (%d), "
1347 "this is unsupported.\n",
1348 sps->bit_depth, bit_depth_chroma);
1349 ✗ return AVERROR_INVALIDDATA;
1350 }
1351 1146 sps->bit_depth_chroma = bit_depth_chroma;
1352 }
1353
1354 1172 sps->output_window = sps->pic_conf_win;
1355
1356 1172 ret = map_pixel_format(avctx, sps);
1357
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 1172 if (ret < 0)
1358 ✗ return ret;
1359
1360 1172 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
1361
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 1172 if (sps->log2_max_poc_lsb > 16) {
1362 ✗ av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
1363 ✗ sps->log2_max_poc_lsb - 4);
1364 ✗ return AVERROR_INVALIDDATA;
1365 }
1366
1367
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 1172 if (!multi_layer_ext) {
1368 int start;
1369
1370 1146 sps->sublayer_ordering_info = get_bits1(gb);
1371
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 1146 start = sps->sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
1372
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 2439 for (i = start; i < sps->max_sub_layers; i++) {
1373 1293 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
1374 1293 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
1375 1293 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
1376
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 1293 if (sps->temporal_layer[i].max_dec_pic_buffering > (unsigned)HEVC_MAX_DPB_SIZE) {
1377 ✗ av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
1378 ✗ sps->temporal_layer[i].max_dec_pic_buffering - 1U);
1379 ✗ return AVERROR_INVALIDDATA;
1380 }
1381
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 1293 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
1382 ✗ av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
1383 sps->temporal_layer[i].num_reorder_pics);
1384 ✗ if (avctx->err_recognition & AV_EF_EXPLODE ||
1385 ✗ sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) {
1386 ✗ return AVERROR_INVALIDDATA;
1387 }
1388 ✗ sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
1389 }
1390 }
1391
1392
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 1146 if (!sps->sublayer_ordering_info) {
1393
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 240 for (i = 0; i < start; i++) {
1394 82 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
1395 82 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
1396 82 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
1397 }
1398 }
1399 } else {
1400
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 52 for (int i = 0; i < sps->max_sub_layers; i++) {
1401 26 sps->temporal_layer[i].max_dec_pic_buffering = sps->vps->dpb_size.max_dec_pic_buffering;
1402 26 sps->temporal_layer[i].num_reorder_pics = sps->vps->dpb_size.max_num_reorder_pics;
1403 26 sps->temporal_layer[i].max_latency_increase = sps->vps->dpb_size.max_latency_increase;
1404 }
1405 }
1406
1407 1172 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
1408 1172 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
1409 1172 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
1410 1172 sps->log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
1411 1172 sps->log2_max_trafo_size = sps->log2_diff_max_min_transform_block_size +
1412 1172 sps->log2_min_tb_size;
1413
1414
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 1172 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
1415 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
1416 ✗ return AVERROR_INVALIDDATA;
1417 }
1418
1419
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 1172 if (sps->log2_diff_max_min_coding_block_size > 30) {
1420 ✗ 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);
1421 ✗ return AVERROR_INVALIDDATA;
1422 }
1423
1424
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 1172 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
1425 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
1426 ✗ return AVERROR_INVALIDDATA;
1427 }
1428
1429
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 1172 if (sps->log2_diff_max_min_transform_block_size > 30) {
1430 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size",
1431 sps->log2_diff_max_min_transform_block_size);
1432 ✗ return AVERROR_INVALIDDATA;
1433 }
1434
1435 1172 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
1436 1172 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
1437
1438 1172 sps->scaling_list_enabled = get_bits1(gb);
1439
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 1172 if (sps->scaling_list_enabled) {
1440 57 set_default_scaling_list_data(&sps->scaling_list);
1441
1442
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 57 if (multi_layer_ext && get_bits1(gb)) { // sps_infer_scaling_list_flag
1443 ✗ av_log(avctx, AV_LOG_ERROR, "sps_infer_scaling_list_flag=1 not supported\n");
1444 ✗ return AVERROR_PATCHWELCOME;
1445 }
1446
1447
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 57 if (get_bits1(gb)) {
1448 26 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
1449
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 26 if (ret < 0)
1450 ✗ return ret;
1451 }
1452 }
1453
1454 1172 sps->amp_enabled = get_bits1(gb);
1455 1172 sps->sao_enabled = get_bits1(gb);
1456
1457 1172 sps->pcm_enabled = get_bits1(gb);
1458
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 1172 if (sps->pcm_enabled) {
1459 75 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
1460 75 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
1461 75 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
1462 150 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
1463 75 get_ue_golomb_long(gb);
1464
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 75 if (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) {
1465 ✗ av_log(avctx, AV_LOG_ERROR,
1466 "PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
1467 ✗ sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, sps->bit_depth);
1468 ✗ return AVERROR_INVALIDDATA;
1469 }
1470
1471 75 sps->pcm_loop_filter_disabled = get_bits1(gb);
1472 }
1473
1474 1172 sps->nb_st_rps = get_ue_golomb_long(gb);
1475
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 1172 if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
1476 ✗ av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
1477 sps->nb_st_rps);
1478 ✗ return AVERROR_INVALIDDATA;
1479 }
1480
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 11172 for (i = 0; i < sps->nb_st_rps; i++) {
1481
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 10000 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
1482 sps, 0)) < 0)
1483 ✗ return ret;
1484 }
1485
1486 1172 sps->long_term_ref_pics_present = get_bits1(gb);
1487
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 1172 if (sps->long_term_ref_pics_present) {
1488 101 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1489
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 101 if (sps->num_long_term_ref_pics_sps > HEVC_MAX_LONG_TERM_REF_PICS) {
1490 ✗ av_log(avctx, AV_LOG_ERROR, "Too many long term ref pics: %d.\n",
1491 ✗ sps->num_long_term_ref_pics_sps);
1492 ✗ return AVERROR_INVALIDDATA;
1493 }
1494
1495 101 sps->used_by_curr_pic_lt = 0;
1496
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 165 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1497 64 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1498 64 sps->used_by_curr_pic_lt |= get_bits1(gb) << i;
1499 }
1500 }
1501
1502 1172 sps->temporal_mvp_enabled = get_bits1(gb);
1503 1172 sps->strong_intra_smoothing_enabled = get_bits1(gb);
1504 1172 sps->vui.common.sar = (AVRational){0, 1};
1505 1172 sps->vui_present = get_bits1(gb);
1506
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 1172 if (sps->vui_present)
1507 308 decode_vui(gb, avctx, apply_defdispwin, sps);
1508
1509 1172 sps->extension_present = get_bits1(gb);
1510
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 1172 if (sps->extension_present) {
1511 131 sps->range_extension = get_bits1(gb);
1512 131 sps->multilayer_extension = get_bits1(gb);
1513 131 sps->sps_3d_extension = get_bits1(gb);
1514 131 sps->scc_extension = get_bits1(gb);
1515 131 skip_bits(gb, 4); // sps_extension_4bits
1516
1517
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 131 if (sps->range_extension) {
1518 56 sps->transform_skip_rotation_enabled = get_bits1(gb);
1519 56 sps->transform_skip_context_enabled = get_bits1(gb);
1520 56 sps->implicit_rdpcm_enabled = get_bits1(gb);
1521 56 sps->explicit_rdpcm_enabled = get_bits1(gb);
1522
1523 56 sps->extended_precision_processing = get_bits1(gb);
1524
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✓ Branch 1 taken 56 times.
 56 if (sps->extended_precision_processing)
1525 ✗ av_log(avctx, AV_LOG_WARNING,
1526 "extended_precision_processing_flag not yet implemented\n");
1527
1528 56 sps->intra_smoothing_disabled = get_bits1(gb);
1529 56 sps->high_precision_offsets_enabled = get_bits1(gb);
1530
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 56 if (sps->high_precision_offsets_enabled)
1531 38 av_log(avctx, AV_LOG_WARNING,
1532 "high_precision_offsets_enabled_flag not yet implemented\n");
1533
1534 56 sps->persistent_rice_adaptation_enabled = get_bits1(gb);
1535
1536 56 sps->cabac_bypass_alignment_enabled = get_bits1(gb);
1537
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 56 if (sps->cabac_bypass_alignment_enabled)
1538 ✗ av_log(avctx, AV_LOG_WARNING,
1539 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1540 }
1541
1542
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 131 if (sps->multilayer_extension) {
1543 55 skip_bits1(gb); // inter_view_mv_vert_constraint_flag
1544 }
1545
1546
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 131 if (sps->sps_3d_extension) {
1547 ✗ for (i = 0; i <= 1; i++) {
1548 ✗ skip_bits1(gb); // iv_di_mc_enabled_flag
1549 ✗ skip_bits1(gb); // iv_mv_scal_enabled_flag
1550 ✗ if (i == 0) {
1551 ✗ get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
1552 ✗ skip_bits1(gb); // iv_res_pred_enabled_flag
1553 ✗ skip_bits1(gb); // depth_ref_enabled_flag
1554 ✗ skip_bits1(gb); // vsp_mc_enabled_flag
1555 ✗ skip_bits1(gb); // dbbp_enabled_flag
1556 } else {
1557 ✗ skip_bits1(gb); // tex_mc_enabled_flag
1558 ✗ get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
1559 ✗ skip_bits1(gb); // intra_contour_enabled_flag
1560 ✗ skip_bits1(gb); // intra_dc_only_wedge_enabled_flag
1561 ✗ skip_bits1(gb); // cqt_cu_part_pred_enabled_flag
1562 ✗ skip_bits1(gb); // inter_dc_only_enabled_flag
1563 ✗ skip_bits1(gb); // skip_intra_enabled_flag
1564 }
1565 }
1566 ✗ av_log(avctx, AV_LOG_WARNING,
1567 "sps_3d_extension_flag not yet implemented\n");
1568 }
1569
1570
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 131 if (sps->scc_extension) {
1571 ✗ sps->curr_pic_ref_enabled = get_bits1(gb);
1572 ✗ sps->palette_mode_enabled = get_bits1(gb);
1573 ✗ if (sps->palette_mode_enabled) {
1574 ✗ sps->palette_max_size = get_ue_golomb(gb);
1575 ✗ sps->delta_palette_max_predictor_size = get_ue_golomb(gb);
1576 ✗ sps->palette_predictor_initializers_present = get_bits1(gb);
1577
1578 ✗ if (sps->palette_predictor_initializers_present) {
1579 ✗ sps->sps_num_palette_predictor_initializers = get_ue_golomb(gb) + 1;
1580 ✗ if (sps->sps_num_palette_predictor_initializers > HEVC_MAX_PALETTE_PREDICTOR_SIZE) {
1581 ✗ av_log(avctx, AV_LOG_ERROR,
1582 "sps_num_palette_predictor_initializers out of range: %u\n",
1583 sps->sps_num_palette_predictor_initializers);
1584 ✗ return AVERROR_INVALIDDATA;
1585 }
1586 ✗ num_comps = !sps->chroma_format_idc ? 1 : 3;
1587 ✗ for (int comp = 0; comp < num_comps; comp++) {
1588 ✗ int bit_depth = !comp ? sps->bit_depth : sps->bit_depth_chroma;
1589 ✗ for (i = 0; i < sps->sps_num_palette_predictor_initializers; i++)
1590 ✗ sps->sps_palette_predictor_initializer[comp][i] = get_bits(gb, bit_depth);
1591 }
1592 }
1593 }
1594 ✗ sps->motion_vector_resolution_control_idc = get_bits(gb, 2);
1595 ✗ sps->intra_boundary_filtering_disabled = get_bits1(gb);
1596 }
1597 }
1598
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 1172 if (apply_defdispwin) {
1599 459 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1600 459 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1601 459 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1602 459 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1603 }
1604
1605 1172 ow = &sps->output_window;
1606
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✗ Branch 1 not taken.
 1172 if (ow->left_offset >= INT_MAX - ow->right_offset ||
1607
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✗ Branch 1 not taken.
 1172 ow->top_offset >= INT_MAX - ow->bottom_offset ||
1608
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✗ Branch 1 not taken.
 1172 ow->left_offset + ow->right_offset >= sps->width ||
1609
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 1172 ow->top_offset + ow->bottom_offset >= sps->height) {
1610 ✗ av_log(avctx, AV_LOG_WARNING, "Invalid cropping offsets: %u/%u/%u/%u\n",
1611 ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset);
1612 ✗ if (avctx->err_recognition & AV_EF_EXPLODE) {
1613 ✗ return AVERROR_INVALIDDATA;
1614 }
1615 ✗ av_log(avctx, AV_LOG_WARNING,
1616 "Displaying the whole video surface.\n");
1617 ✗ memset(ow, 0, sizeof(*ow));
1618 ✗ memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1619 }
1620
1621 // Inferred parameters
1622 1172 sps->log2_ctb_size = sps->log2_min_cb_size +
1623 1172 sps->log2_diff_max_min_coding_block_size;
1624 1172 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1625
1626
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 1172 if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) {
1627 ✗ av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1628 ✗ return AVERROR_INVALIDDATA;
1629 }
1630
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 1172 if (sps->log2_ctb_size < 4) {
1631 ✗ av_log(avctx,
1632 AV_LOG_ERROR,
1633 "log2_ctb_size %d differs from the bounds of any known profile\n",
1634 sps->log2_ctb_size);
1635 ✗ avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1636 ✗ return AVERROR_INVALIDDATA;
1637 }
1638
1639 1172 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1640 1172 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1641 1172 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1642
1643 1172 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1644 1172 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1645 1172 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1646 1172 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1647 1172 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1648 1172 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1649 1172 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1650
1651 1172 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1652
1653
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✗ Branch 1 not taken.
 1172 if (av_zero_extend(sps->width, sps->log2_min_cb_size) ||
1654
1/2
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✓ Branch 1 taken 1172 times.
 1172 av_zero_extend(sps->height, sps->log2_min_cb_size)) {
1655 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1656 ✗ return AVERROR_INVALIDDATA;
1657 }
1658
1659
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 1172 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1660 ✗ av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1661 sps->max_transform_hierarchy_depth_inter);
1662 ✗ return AVERROR_INVALIDDATA;
1663 }
1664
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 1172 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1665 ✗ av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1666 sps->max_transform_hierarchy_depth_intra);
1667 ✗ return AVERROR_INVALIDDATA;
1668 }
1669
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 1172 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1670 ✗ av_log(avctx, AV_LOG_ERROR,
1671 "max transform block size out of range: %d\n",
1672 sps->log2_max_trafo_size);
1673 ✗ return AVERROR_INVALIDDATA;
1674 }
1675
1676
1/2
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✓ Branch 2 taken 1172 times.
 1172 if (get_bits_left(gb) < 0) {
1677 ✗ av_log(avctx, AV_LOG_ERROR,
1678 ✗ "Overread SPS by %d bits\n", -get_bits_left(gb));
1679 ✗ return AVERROR_INVALIDDATA;
1680 }
1681
1682 1172 return 0;
1683 }
1684
1685 1172 static void hevc_sps_free(AVRefStructOpaque opaque, void *obj)
1686 {
1687 1172 HEVCSPS *sps = obj;
1688
1689 1172 av_refstruct_unref(&sps->vps);
1690
1691 1172 av_freep(&sps->data);
1692 1172 }
1693
1694 458 static int compare_sps(const HEVCSPS *sps1, const HEVCSPS *sps2)
1695 {
1696
2/2
✓ Branch 0 taken 454 times.
✓ Branch 1 taken 4 times.
 912 return sps1->data_size == sps2->data_size &&
1697
2/2
✓ Branch 0 taken 450 times.
✓ Branch 1 taken 4 times.
 454 !memcmp(sps1->data, sps2->data, sps1->data_size);
1698 }
1699
1700 1172 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1701 HEVCParamSets *ps, unsigned nuh_layer_id,
1702 int apply_defdispwin)
1703 {
1704 1172 HEVCSPS *sps = av_refstruct_alloc_ext(sizeof(*sps), 0, NULL, hevc_sps_free);
1705 unsigned int sps_id;
1706 int ret;
1707
1708
1/2
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✓ Branch 1 taken 1172 times.
 1172 if (!sps)
1709 ✗ return AVERROR(ENOMEM);
1710
1711 1172 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1712
1713 1172 sps->data_size = gb->buffer_end - gb->buffer;
1714 1172 sps->data = av_memdup(gb->buffer, sps->data_size);
1715
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1172 times.
 1172 if (!sps->data) {
1716 ✗ ret = AVERROR(ENOMEM);
1717 ✗ goto err;
1718 }
1719
1720 1172 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1721 nuh_layer_id, apply_defdispwin,
1722 1172 ps->vps_list, avctx);
1723
1/2
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✓ Branch 1 taken 1172 times.
 1172 if (ret < 0)
1724 ✗ goto err;
1725
1726
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 1172 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1727 ✗ av_log(avctx, AV_LOG_DEBUG,
1728 "Parsed SPS: id %d; coded wxh: %dx%d; "
1729 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1730 ✗ sps_id, sps->width, sps->height,
1731 ✗ sps->width - (sps->output_window.left_offset + sps->output_window.right_offset),
1732 ✗ sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset),
1733 ✗ av_get_pix_fmt_name(sps->pix_fmt));
1734 }
1735
1736 /* check if this is a repeat of an already parsed SPS, then keep the
1737 * original one.
1738 * otherwise drop all PPSes that depend on it */
1739
4/4
✓ Branch 0 taken 458 times.
✓ Branch 1 taken 714 times.
✓ Branch 2 taken 450 times.
✓ Branch 3 taken 8 times.
 1630 if (ps->sps_list[sps_id] &&
1740 458 compare_sps(ps->sps_list[sps_id], sps)) {
1741 450 av_refstruct_unref(&sps);
1742 } else {
1743 722 remove_sps(ps, sps_id);
1744 722 ps->sps_list[sps_id] = sps;
1745 }
1746
1747 1172 return 0;
1748 ✗ err:
1749 ✗ av_refstruct_unref(&sps);
1750 ✗ return ret;
1751 }
1752
1753 2176 static void hevc_pps_free(AVRefStructOpaque unused, void *obj)
1754 {
1755 2176 HEVCPPS *pps = obj;
1756
1757 2176 av_refstruct_unref(&pps->sps);
1758
1759 2176 av_freep(&pps->column_width);
1760 2176 av_freep(&pps->row_height);
1761 2176 av_freep(&pps->col_bd);
1762 2176 av_freep(&pps->row_bd);
1763 2176 av_freep(&pps->col_idxX);
1764 2176 av_freep(&pps->ctb_addr_rs_to_ts);
1765 2176 av_freep(&pps->ctb_addr_ts_to_rs);
1766 2176 av_freep(&pps->tile_pos_rs);
1767 2176 av_freep(&pps->tile_id);
1768 2176 av_freep(&pps->min_tb_addr_zs_tab);
1769 2176 av_freep(&pps->data);
1770 2176 }
1771
1772 3 static void colour_mapping_octants(GetBitContext *gb, HEVCPPS *pps, int inp_depth,
1773 int idx_y, int idx_cb, int idx_cr, int inp_length)
1774 {
1775 unsigned int split_octant_flag, part_num_y, coded_res_flag, res_coeff_q, res_coeff_r;
1776 int cm_res_bits;
1777
1778 3 part_num_y = 1 << pps->cm_y_part_num_log2;
1779
1780
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 3 split_octant_flag = inp_depth < pps->cm_octant_depth ? get_bits1(gb) : 0;
1781
1782
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 3 if (split_octant_flag)
1783 ✗ for (int k = 0; k < 2; k++)
1784 ✗ for (int m = 0; m < 2; m++)
1785 ✗ for (int n = 0; n < 2; n++)
1786 ✗ colour_mapping_octants(gb, pps, inp_depth + 1,
1787 ✗ idx_y + part_num_y * k * inp_length / 2,
1788 ✗ idx_cb + m * inp_length / 2,
1789 ✗ idx_cr + n * inp_length / 2,
1790 inp_length / 2);
1791 else
1792
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 27 for (int i = 0; i < part_num_y; i++) {
1793
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 120 for (int j = 0; j < 4; j++) {
1794 96 coded_res_flag = get_bits1(gb);
1795
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 96 if (coded_res_flag)
1796 ✗ for (int c = 0; c < 3; c++) {
1797 ✗ res_coeff_q = get_ue_golomb_long(gb);
1798 ✗ cm_res_bits = FFMAX(0, 10 + pps->luma_bit_depth_cm_input -
1799 pps->luma_bit_depth_cm_output -
1800 pps->cm_res_quant_bits - pps->cm_delta_flc_bits);
1801 ✗ res_coeff_r = cm_res_bits ? get_bits(gb, cm_res_bits) : 0;
1802 ✗ if (res_coeff_q || res_coeff_r)
1803 ✗ skip_bits1(gb);
1804 }
1805 }
1806 }
1807 3 }
1808
1809 3 static int colour_mapping_table(GetBitContext *gb, AVCodecContext *avctx, HEVCPPS *pps)
1810 {
1811 3 pps->num_cm_ref_layers = get_ue_golomb(gb) + 1;
1812
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✓ Branch 1 taken 3 times.
 3 if (pps->num_cm_ref_layers > 62) {
1813 ✗ av_log(avctx, AV_LOG_ERROR,
1814 "num_cm_ref_layers_minus1 shall be in the range [0, 61].\n");
1815 ✗ return AVERROR_INVALIDDATA;
1816 }
1817
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 12 for (int i = 0; i < pps->num_cm_ref_layers; i++)
1818 9 pps->cm_ref_layer_id[i] = get_bits(gb, 6);
1819
1820 3 pps->cm_octant_depth = get_bits(gb, 2);
1821 3 pps->cm_y_part_num_log2 = get_bits(gb, 2);
1822
1823 3 pps->luma_bit_depth_cm_input = get_ue_golomb(gb) + 8;
1824 3 pps->chroma_bit_depth_cm_input = get_ue_golomb(gb) + 8;
1825 3 pps->luma_bit_depth_cm_output = get_ue_golomb(gb) + 8;
1826 3 pps->chroma_bit_depth_cm_output = get_ue_golomb(gb) + 8;
1827
1828 3 pps->cm_res_quant_bits = get_bits(gb, 2);
1829 3 pps->cm_delta_flc_bits = get_bits(gb, 2) + 1;
1830
1831
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 3 if (pps->cm_octant_depth == 1) {
1832 ✗ pps->cm_adapt_threshold_u_delta = get_se_golomb_long(gb);
1833 ✗ pps->cm_adapt_threshold_v_delta = get_se_golomb_long(gb);
1834 }
1835
1836 3 colour_mapping_octants(gb, pps, 0, 0, 0, 0, 1 << pps->cm_octant_depth);
1837
1838 3 return 0;
1839 }
1840
1841 43 static int pps_multilayer_extension(GetBitContext *gb, AVCodecContext *avctx,
1842 HEVCPPS *pps, const HEVCSPS *sps, const HEVCVPS *vps)
1843 {
1844 43 pps->poc_reset_info_present_flag = get_bits1(gb);
1845 43 pps->pps_infer_scaling_list_flag = get_bits1(gb);
1846
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 43 if (pps->pps_infer_scaling_list_flag)
1847 ✗ pps->pps_scaling_list_ref_layer_id = get_bits(gb, 6);
1848
1849 43 pps->num_ref_loc_offsets = get_ue_golomb(gb);
1850
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 43 if (pps->num_ref_loc_offsets > vps->vps_max_layers - 1)
1851 ✗ return AVERROR_INVALIDDATA;
1852
1853
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 43 for (int i = 0; i < pps->num_ref_loc_offsets; i++) {
1854 ✗ pps->ref_loc_offset_layer_id[i] = get_bits(gb, 6);
1855 ✗ pps->scaled_ref_layer_offset_present_flag[i] = get_bits1(gb);
1856 ✗ if (pps->scaled_ref_layer_offset_present_flag[i]) {
1857 ✗ pps->scaled_ref_layer_left_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1858 ✗ pps->scaled_ref_layer_top_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1859 ✗ pps->scaled_ref_layer_right_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1860 ✗ pps->scaled_ref_layer_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1861 }
1862
1863 ✗ pps->ref_region_offset_present_flag[i] = get_bits1(gb);
1864 ✗ if (pps->ref_region_offset_present_flag[i]) {
1865 ✗ pps->ref_region_left_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1866 ✗ pps->ref_region_top_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1867 ✗ pps->ref_region_right_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1868 ✗ pps->ref_region_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1869 }
1870
1871 ✗ pps->resample_phase_set_present_flag[i] = get_bits1(gb);
1872 ✗ if (pps->resample_phase_set_present_flag[i]) {
1873 ✗ pps->phase_hor_luma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_31(gb);
1874 ✗ pps->phase_ver_luma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_31(gb);
1875 ✗ pps->phase_hor_chroma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb(gb) - 8;
1876 ✗ pps->phase_ver_chroma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb(gb) - 8;
1877 }
1878 }
1879
1880 43 pps->colour_mapping_enabled_flag = get_bits1(gb);
1881
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 43 if (pps->colour_mapping_enabled_flag) {
1882 3 int ret = colour_mapping_table(gb, avctx, pps);
1883
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 3 if (ret < 0)
1884 ✗ return ret;
1885 }
1886
1887 43 return 0;
1888 }
1889
1890 ✗ static void delta_dlt(GetBitContext *gb, HEVCPPS *pps)
1891 {
1892 ✗ unsigned int num_val_delta_dlt, max_diff = 0;
1893 ✗ int min_diff_minus1 = -1;
1894 unsigned int len;
1895
1896 ✗ num_val_delta_dlt = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
1897 ✗ if (num_val_delta_dlt) {
1898 ✗ if (num_val_delta_dlt > 1)
1899 ✗ max_diff = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
1900 ✗ if (num_val_delta_dlt > 2 && max_diff) {
1901 ✗ len = av_log2(max_diff) + 1;
1902 ✗ min_diff_minus1 = get_bits(gb, len);
1903 }
1904 ✗ if (max_diff > (min_diff_minus1 + 1))
1905 ✗ for (int k = 1; k < num_val_delta_dlt; k++) {
1906 ✗ len = av_log2(max_diff - (min_diff_minus1 + 1)) + 1;
1907 ✗ skip_bits(gb, len); // delta_val_diff_minus_min
1908 }
1909 }
1910 ✗ }
1911
1912 3 static int pps_3d_extension(GetBitContext *gb, AVCodecContext *avctx,
1913 HEVCPPS *pps, const HEVCSPS *sps)
1914 {
1915 unsigned int pps_depth_layers_minus1;
1916
1917
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 3 if (get_bits1(gb)) { // dlts_present_flag
1918 ✗ pps_depth_layers_minus1 = get_bits(gb, 6);
1919 ✗ pps->pps_bit_depth_for_depth_layers_minus8 = get_bits(gb, 4);
1920 ✗ for (int i = 0; i <= pps_depth_layers_minus1; i++) {
1921 ✗ if (get_bits1(gb)) { // dlt_flag[i]
1922 ✗ if (!get_bits1(gb)) { // dlt_pred_flag[i]
1923 ✗ if (get_bits1(gb)) { // dlt_val_flags_present_flag[i]
1924 ✗ for (int j = 0; j <= ((1 << (pps->pps_bit_depth_for_depth_layers_minus8 + 8)) - 1); j++)
1925 ✗ skip_bits1(gb); // dlt_value_flag[i][j]
1926 } else
1927 ✗ delta_dlt(gb, pps);
1928 }
1929 }
1930 }
1931 }
1932
1933 3 return 0;
1934 }
1935
1936 63 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1937 HEVCPPS *pps, const HEVCSPS *sps)
1938 {
1939
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 63 if (pps->transform_skip_enabled_flag) {
1940 63 pps->log2_max_transform_skip_block_size = get_ue_golomb_31(gb) + 2;
1941 }
1942 63 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1943 63 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1944
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 63 if (pps->chroma_qp_offset_list_enabled_flag) {
1945 6 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_31(gb);
1946 6 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_31(gb);
1947
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 6 if (pps->chroma_qp_offset_list_len_minus1 > 5) {
1948 ✗ av_log(avctx, AV_LOG_ERROR,
1949 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1950 ✗ return AVERROR_INVALIDDATA;
1951 }
1952
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 12 for (int i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1953 6 pps->cb_qp_offset_list[i] = get_se_golomb(gb);
1954
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 6 if (pps->cb_qp_offset_list[i]) {
1955 6 av_log(avctx, AV_LOG_WARNING,
1956 "cb_qp_offset_list not tested yet.\n");
1957 }
1958 6 pps->cr_qp_offset_list[i] = get_se_golomb(gb);
1959
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 6 if (pps->cr_qp_offset_list[i]) {
1960 6 av_log(avctx, AV_LOG_WARNING,
1961 "cb_qp_offset_list not tested yet.\n");
1962 }
1963 }
1964 }
1965 63 pps->log2_sao_offset_scale_luma = get_ue_golomb_31(gb);
1966 63 pps->log2_sao_offset_scale_chroma = get_ue_golomb_31(gb);
1967
1968
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 63 if ( pps->log2_sao_offset_scale_luma > FFMAX(sps->bit_depth - 10, 0)
1969
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 63 || pps->log2_sao_offset_scale_chroma > FFMAX(sps->bit_depth_chroma - 10, 0)
1970 )
1971 ✗ return AVERROR_INVALIDDATA;
1972
1973 63 return(0);
1974 }
1975
1976 3 static int pps_scc_extension(GetBitContext *gb, AVCodecContext *avctx,
1977 HEVCPPS *pps, const HEVCSPS *sps)
1978 {
1979 int num_comps, ret;
1980
1981 3 pps->pps_curr_pic_ref_enabled_flag = get_bits1(gb);
1982
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 3 if (pps->residual_adaptive_colour_transform_enabled_flag = get_bits1(gb)) {
1983 ✗ pps->pps_slice_act_qp_offsets_present_flag = get_bits1(gb);
1984 ✗ pps->pps_act_y_qp_offset = get_se_golomb(gb) - 5;
1985 ✗ pps->pps_act_cb_qp_offset = get_se_golomb(gb) - 5;
1986 ✗ pps->pps_act_cr_qp_offset = get_se_golomb(gb) - 3;
1987
1988 #define CHECK_QP_OFFSET(name) (pps->pps_act_ ## name ## _qp_offset <= -12 || \
1989 pps->pps_act_ ## name ## _qp_offset >= 12)
1990 ✗ ret = CHECK_QP_OFFSET(y) || CHECK_QP_OFFSET(cb) || CHECK_QP_OFFSET(cr);
1991 #undef CHECK_QP_OFFSET
1992 ✗ if (ret) {
1993 ✗ av_log(avctx, AV_LOG_ERROR,
1994 "PpsActQpOffsetY/Cb/Cr shall be in the range of [-12, 12].\n");
1995 ✗ return AVERROR_INVALIDDATA;
1996 }
1997 }
1998
1999
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 3 if (pps->pps_palette_predictor_initializers_present_flag = get_bits1(gb)) {
2000 ✗ pps->pps_num_palette_predictor_initializers = get_ue_golomb(gb);
2001 ✗ if (pps->pps_num_palette_predictor_initializers > 0) {
2002 ✗ if (pps->pps_num_palette_predictor_initializers > HEVC_MAX_PALETTE_PREDICTOR_SIZE) {
2003 ✗ av_log(avctx, AV_LOG_ERROR,
2004 "pps_num_palette_predictor_initializers out of range: %u\n",
2005 ✗ pps->pps_num_palette_predictor_initializers);
2006 ✗ return AVERROR_INVALIDDATA;
2007 }
2008 ✗ pps->monochrome_palette_flag = get_bits1(gb);
2009 ✗ pps->luma_bit_depth_entry = get_ue_golomb_31(gb) + 8;
2010 ✗ if (pps->luma_bit_depth_entry != sps->bit_depth)
2011 ✗ return AVERROR_INVALIDDATA;
2012 ✗ if (!pps->monochrome_palette_flag) {
2013 ✗ pps->chroma_bit_depth_entry = get_ue_golomb_31(gb) + 8;
2014 ✗ if (pps->chroma_bit_depth_entry != sps->bit_depth_chroma)
2015 ✗ return AVERROR_INVALIDDATA;
2016 }
2017
2018 ✗ num_comps = pps->monochrome_palette_flag ? 1 : 3;
2019 ✗ for (int comp = 0; comp < num_comps; comp++) {
2020 ✗ int bit_depth = !comp ? pps->luma_bit_depth_entry : pps->chroma_bit_depth_entry;
2021 ✗ for (int i = 0; i < pps->pps_num_palette_predictor_initializers; i++)
2022 ✗ pps->pps_palette_predictor_initializer[comp][i] = get_bits(gb, bit_depth);
2023 }
2024 }
2025 }
2026
2027 3 return 0;
2028 }
2029
2030 2172 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
2031 HEVCPPS *pps, const HEVCSPS *sps)
2032 {
2033 int log2_diff;
2034 int pic_area_in_ctbs;
2035 int i, j, x, y, ctb_addr_rs, tile_id;
2036
2037 // Inferred parameters
2038 2172 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
2039 2172 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
2040 2172 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
2041
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 2172 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
2042 ✗ return AVERROR(ENOMEM);
2043
2044
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 2172 if (pps->uniform_spacing_flag) {
2045
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 1651 if (!pps->column_width) {
2046 1425 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
2047 1425 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
2048 }
2049
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 1651 if (!pps->column_width || !pps->row_height)
2050 ✗ return AVERROR(ENOMEM);
2051
2052
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 3463 for (i = 0; i < pps->num_tile_columns; i++) {
2053 1812 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
2054 1812 (i * sps->ctb_width) / pps->num_tile_columns;
2055 }
2056
2057
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 3481 for (i = 0; i < pps->num_tile_rows; i++) {
2058 1830 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
2059 1830 (i * sps->ctb_height) / pps->num_tile_rows;
2060 }
2061 }
2062
2063 2172 pps->col_bd[0] = 0;
2064
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 6547 for (i = 0; i < pps->num_tile_columns; i++)
2065 4375 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
2066
2067 2172 pps->row_bd[0] = 0;
2068
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 6553 for (i = 0; i < pps->num_tile_rows; i++)
2069 4381 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
2070
2071
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 45087 for (i = 0, j = 0; i < sps->ctb_width; i++) {
2072
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 42915 if (i > pps->col_bd[j])
2073 4366 j++;
2074 42915 pps->col_idxX[i] = j;
2075 }
2076
2077 /**
2078 * 6.5
2079 */
2080 2172 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
2081
2082 2172 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
2083 2172 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
2084 2172 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
2085 2172 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
2086
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 2172 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
2087
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 2172 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
2088 ✗ return AVERROR(ENOMEM);
2089 }
2090
2091
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 683055 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
2092 680883 int tb_x = ctb_addr_rs % sps->ctb_width;
2093 680883 int tb_y = ctb_addr_rs / sps->ctb_width;
2094 680883 int tile_x = 0;
2095 680883 int tile_y = 0;
2096 680883 int val = 0;
2097
2098
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 1191435 for (i = 0; i < pps->num_tile_columns; i++) {
2099
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 1191435 if (tb_x < pps->col_bd[i + 1]) {
2100 680883 tile_x = i;
2101 680883 break;
2102 }
2103 }
2104
2105
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 1059281 for (i = 0; i < pps->num_tile_rows; i++) {
2106
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 1059281 if (tb_y < pps->row_bd[i + 1]) {
2107 680883 tile_y = i;
2108 680883 break;
2109 }
2110 }
2111
2112
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 1191435 for (i = 0; i < tile_x; i++)
2113 510552 val += pps->row_height[tile_y] * pps->column_width[i];
2114
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 1059281 for (i = 0; i < tile_y; i++)
2115 378398 val += sps->ctb_width * pps->row_height[i];
2116
2117 680883 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
2118 680883 tb_x - pps->col_bd[tile_x];
2119
2120 680883 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
2121 680883 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
2122 }
2123
2124
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 6553 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
2125
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 19117 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
2126
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 80562 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
2127
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 746709 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
2128 680883 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
2129
2130 2172 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
2131
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 2172 if (!pps->tile_pos_rs)
2132 ✗ return AVERROR(ENOMEM);
2133
2134
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 6553 for (j = 0; j < pps->num_tile_rows; j++)
2135
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 19117 for (i = 0; i < pps->num_tile_columns; i++)
2136 14736 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
2137 14736 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
2138
2139 2172 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
2140 2172 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
2141
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 38060 for (y = 0; y < sps->tb_mask+2; y++) {
2142 35888 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
2143 35888 pps->min_tb_addr_zs_tab[y] = -1;
2144 }
2145
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 35888 for (y = 0; y < sps->tb_mask+1; y++) {
2146
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 566276 for (x = 0; x < sps->tb_mask+1; x++) {
2147 532560 int tb_x = x >> log2_diff;
2148 532560 int tb_y = y >> log2_diff;
2149 532560 int rs = sps->ctb_width * tb_y + tb_x;
2150 532560 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
2151
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 2656368 for (i = 0; i < log2_diff; i++) {
2152 2123808 int m = 1 << i;
2153
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 2123808 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
2154 }
2155 532560 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
2156 }
2157 }
2158
2159 2172 return 0;
2160 }
2161
2162 3396 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
2163 HEVCParamSets *ps)
2164 {
2165 3396 const HEVCSPS *sps = NULL;
2166 3396 const HEVCVPS *vps = NULL;
2167 3396 int i, ret = 0;
2168 3396 ptrdiff_t nal_size = gb->buffer_end - gb->buffer;
2169 3396 unsigned int pps_id = get_ue_golomb_long(gb);
2170 unsigned log2_parallel_merge_level_minus2;
2171 HEVCPPS *pps;
2172
2173 3396 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
2174
2175
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 3396 if (pps_id >= HEVC_MAX_PPS_COUNT) {
2176 ✗ av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
2177 ✗ return AVERROR_INVALIDDATA;
2178 }
2179
2180
2/2
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 3396 if (ps->pps_list[pps_id]) {
2181 2425 const HEVCPPS *pps1 = ps->pps_list[pps_id];
2182
2/2
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 2425 if (pps1->data_size == nal_size &&
2183
2/2
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 2045 !memcmp(pps1->data, gb->buffer, pps1->data_size))
2184 1220 return 0;
2185 }
2186
2187 2176 pps = av_refstruct_alloc_ext(sizeof(*pps), 0, NULL, hevc_pps_free);
2188
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 2176 if (!pps)
2189 ✗ return AVERROR(ENOMEM);
2190
2191 2176 pps->data_size = nal_size;
2192 2176 pps->data = av_memdup(gb->buffer, nal_size);
2193
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 2176 if (!pps->data) {
2194 ✗ ret = AVERROR_INVALIDDATA;
2195 ✗ goto err;
2196 }
2197
2198 // Default values
2199 2176 pps->loop_filter_across_tiles_enabled_flag = 1;
2200 2176 pps->num_tile_columns = 1;
2201 2176 pps->num_tile_rows = 1;
2202 2176 pps->uniform_spacing_flag = 1;
2203 2176 pps->disable_dbf = 0;
2204 2176 pps->beta_offset = 0;
2205 2176 pps->tc_offset = 0;
2206 2176 pps->log2_max_transform_skip_block_size = 2;
2207
2208 // Coded parameters
2209 2176 pps->pps_id = pps_id;
2210 2176 pps->sps_id = get_ue_golomb_long(gb);
2211
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 2176 if (pps->sps_id >= HEVC_MAX_SPS_COUNT) {
2212 ✗ av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
2213 ✗ ret = AVERROR_INVALIDDATA;
2214 ✗ goto err;
2215 }
2216
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 2176 if (!ps->sps_list[pps->sps_id]) {
2217 4 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
2218 4 ret = AVERROR_INVALIDDATA;
2219 4 goto err;
2220 }
2221 2172 sps = ps->sps_list[pps->sps_id];
2222 2172 vps = ps->vps_list[sps->vps_id];
2223
2224 2172 pps->sps = av_refstruct_ref_c(sps);
2225
2226 2172 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
2227 2172 pps->output_flag_present_flag = get_bits1(gb);
2228 2172 pps->num_extra_slice_header_bits = get_bits(gb, 3);
2229
2230 2172 pps->sign_data_hiding_flag = get_bits1(gb);
2231
2232 2172 pps->cabac_init_present_flag = get_bits1(gb);
2233
2234 2172 pps->num_ref_idx_l0_default_active = get_ue_golomb_31(gb) + 1;
2235 2172 pps->num_ref_idx_l1_default_active = get_ue_golomb_31(gb) + 1;
2236
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 2172 if (pps->num_ref_idx_l0_default_active >= HEVC_MAX_REFS ||
2237
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 2172 pps->num_ref_idx_l1_default_active >= HEVC_MAX_REFS) {
2238 ✗ av_log(avctx, AV_LOG_ERROR, "Too many default refs in PPS: %d/%d.\n",
2239 ✗ pps->num_ref_idx_l0_default_active, pps->num_ref_idx_l1_default_active);
2240 ✗ goto err;
2241 }
2242
2243 2172 pps->pic_init_qp_minus26 = get_se_golomb(gb);
2244
2245 2172 pps->constrained_intra_pred_flag = get_bits1(gb);
2246 2172 pps->transform_skip_enabled_flag = get_bits1(gb);
2247
2248 2172 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
2249 2172 pps->diff_cu_qp_delta_depth = 0;
2250
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 2172 if (pps->cu_qp_delta_enabled_flag)
2251 492 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
2252
2253
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 2172 if (pps->diff_cu_qp_delta_depth < 0 ||
2254
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 2172 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
2255 ✗ av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
2256 ✗ pps->diff_cu_qp_delta_depth);
2257 ✗ ret = AVERROR_INVALIDDATA;
2258 ✗ goto err;
2259 }
2260
2261 2172 pps->cb_qp_offset = get_se_golomb(gb);
2262
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 2172 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
2263 ✗ av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
2264 ✗ pps->cb_qp_offset);
2265 ✗ ret = AVERROR_INVALIDDATA;
2266 ✗ goto err;
2267 }
2268 2172 pps->cr_qp_offset = get_se_golomb(gb);
2269
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 2172 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
2270 ✗ av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
2271 ✗ pps->cr_qp_offset);
2272 ✗ ret = AVERROR_INVALIDDATA;
2273 ✗ goto err;
2274 }
2275 2172 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
2276
2277 2172 pps->weighted_pred_flag = get_bits1(gb);
2278 2172 pps->weighted_bipred_flag = get_bits1(gb);
2279
2280 2172 pps->transquant_bypass_enable_flag = get_bits1(gb);
2281 2172 pps->tiles_enabled_flag = get_bits1(gb);
2282 2172 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
2283
2284
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 2172 if (pps->tiles_enabled_flag) {
2285 747 int num_tile_columns_minus1 = get_ue_golomb(gb);
2286 747 int num_tile_rows_minus1 = get_ue_golomb(gb);
2287
2288
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 747 if (num_tile_columns_minus1 < 0 ||
2289
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 747 num_tile_columns_minus1 >= sps->ctb_width) {
2290 ✗ av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
2291 num_tile_columns_minus1);
2292 ✗ ret = num_tile_columns_minus1 < 0 ? num_tile_columns_minus1 : AVERROR_INVALIDDATA;
2293 ✗ goto err;
2294 }
2295
1/2
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 747 if (num_tile_rows_minus1 < 0 ||
2296
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 747 num_tile_rows_minus1 >= sps->ctb_height) {
2297 ✗ av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
2298 num_tile_rows_minus1);
2299 ✗ ret = num_tile_rows_minus1 < 0 ? num_tile_rows_minus1 : AVERROR_INVALIDDATA;
2300 ✗ goto err;
2301 }
2302 747 pps->num_tile_columns = num_tile_columns_minus1 + 1;
2303 747 pps->num_tile_rows = num_tile_rows_minus1 + 1;
2304
2305 747 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
2306 747 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
2307
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 747 if (!pps->column_width || !pps->row_height) {
2308 ✗ ret = AVERROR(ENOMEM);
2309 ✗ goto err;
2310 }
2311
2312 747 pps->uniform_spacing_flag = get_bits1(gb);
2313
2/2
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 747 if (!pps->uniform_spacing_flag) {
2314 521 uint64_t sum = 0;
2315
2/2
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 2563 for (i = 0; i < pps->num_tile_columns - 1; i++) {
2316 2042 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
2317 2042 sum += pps->column_width[i];
2318 }
2319
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 521 if (sum >= sps->ctb_width) {
2320 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
2321 ✗ ret = AVERROR_INVALIDDATA;
2322 ✗ goto err;
2323 }
2324 521 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
2325
2326 521 sum = 0;
2327
2/2
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 2551 for (i = 0; i < pps->num_tile_rows - 1; i++) {
2328 2030 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
2329 2030 sum += pps->row_height[i];
2330 }
2331
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 521 if (sum >= sps->ctb_height) {
2332 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
2333 ✗ ret = AVERROR_INVALIDDATA;
2334 ✗ goto err;
2335 }
2336 521 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
2337 }
2338 747 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
2339 }
2340
2341 2172 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
2342
2343 2172 pps->deblocking_filter_control_present_flag = get_bits1(gb);
2344
2/2
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 2172 if (pps->deblocking_filter_control_present_flag) {
2345 881 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
2346 881 pps->disable_dbf = get_bits1(gb);
2347
2/2
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 881 if (!pps->disable_dbf) {
2348 755 int beta_offset_div2 = get_se_golomb(gb);
2349 755 int tc_offset_div2 = get_se_golomb(gb) ;
2350
2/4
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 755 if (beta_offset_div2 < -6 || beta_offset_div2 > 6) {
2351 ✗ av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
2352 beta_offset_div2);
2353 ✗ ret = AVERROR_INVALIDDATA;
2354 ✗ goto err;
2355 }
2356
2/4
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 755 if (tc_offset_div2 < -6 || tc_offset_div2 > 6) {
2357 ✗ av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
2358 tc_offset_div2);
2359 ✗ ret = AVERROR_INVALIDDATA;
2360 ✗ goto err;
2361 }
2362 755 pps->beta_offset = 2 * beta_offset_div2;
2363 755 pps->tc_offset = 2 * tc_offset_div2;
2364 }
2365 }
2366
2367 2172 pps->scaling_list_data_present_flag = get_bits1(gb);
2368
2/2
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 2172 if (pps->scaling_list_data_present_flag) {
2369 115 set_default_scaling_list_data(&pps->scaling_list);
2370 115 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
2371
1/2
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 115 if (ret < 0)
2372 ✗ goto err;
2373 }
2374 2172 pps->lists_modification_present_flag = get_bits1(gb);
2375 2172 log2_parallel_merge_level_minus2 = get_ue_golomb_long(gb);
2376
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 2172 if (log2_parallel_merge_level_minus2 > sps->log2_ctb_size) {
2377 ✗ av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
2378 log2_parallel_merge_level_minus2);
2379 ✗ ret = AVERROR_INVALIDDATA;
2380 ✗ goto err;
2381 }
2382 2172 pps->log2_parallel_merge_level = log2_parallel_merge_level_minus2 + 2;
2383
2384 2172 pps->slice_header_extension_present_flag = get_bits1(gb);
2385
2386 2172 pps->pps_extension_present_flag = get_bits1(gb);
2387
2/2
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 2172 if (pps->pps_extension_present_flag) {
2388 109 pps->pps_range_extensions_flag = get_bits1(gb);
2389 109 pps->pps_multilayer_extension_flag = get_bits1(gb);
2390 109 pps->pps_3d_extension_flag = get_bits1(gb);
2391 109 pps->pps_scc_extension_flag = get_bits1(gb);
2392 109 skip_bits(gb, 4); // pps_extension_4bits
2393
2394
3/4
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 109 if (sps->ptl.general_ptl.profile_idc >= AV_PROFILE_HEVC_REXT && pps->pps_range_extensions_flag) {
2395
1/2
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 63 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
2396 ✗ goto err;
2397 }
2398
2399
2/2
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✓ Branch 1 taken 66 times.
 109 if (pps->pps_multilayer_extension_flag) {
2400
1/2
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✓ Branch 2 taken 43 times.
 43 if ((ret = pps_multilayer_extension(gb, avctx, pps, sps, vps)) < 0)
2401 ✗ goto err;
2402 }
2403
2404
2/2
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 109 if (pps->pps_3d_extension_flag) {
2405
1/2
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 3 if ((ret = pps_3d_extension(gb, avctx, pps, sps)) < 0)
2406 ✗ goto err;
2407 }
2408
2409
2/2
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 109 if (pps->pps_scc_extension_flag) {
2410
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 3 if ((ret = pps_scc_extension(gb, avctx, pps, sps)) < 0)
2411 ✗ goto err;
2412 }
2413 }
2414
2415 2172 ret = setup_pps(avctx, gb, pps, sps);
2416
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 2172 if (ret < 0)
2417 ✗ goto err;
2418
2419
2/2
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✓ Branch 2 taken 2169 times.
 2172 if (get_bits_left(gb) < 0) {
2420 3 av_log(avctx, AV_LOG_WARNING,
2421 3 "Overread PPS by %d bits\n", -get_bits_left(gb));
2422 }
2423
2424 2172 av_refstruct_unref(&ps->pps_list[pps_id]);
2425 2172 ps->pps_list[pps_id] = pps;
2426
2427 2172 return 0;
2428
2429 4 err:
2430 4 av_refstruct_unref(&pps);
2431 4 return ret;
2432 }
2433
2434 721 void ff_hevc_ps_uninit(HEVCParamSets *ps)
2435 {
2436 int i;
2437
2438
2/2
✓ Branch 0 taken 11536 times.
✓ Branch 1 taken 721 times.
 12257 for (i = 0; i < FF_ARRAY_ELEMS(ps->vps_list); i++)
2439 11536 av_refstruct_unref(&ps->vps_list[i]);
2440
2/2
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✓ Branch 1 taken 721 times.
 12257 for (i = 0; i < FF_ARRAY_ELEMS(ps->sps_list); i++)
2441 11536 av_refstruct_unref(&ps->sps_list[i]);
2442
2/2
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 46865 for (i = 0; i < FF_ARRAY_ELEMS(ps->pps_list); i++)
2443 46144 av_refstruct_unref(&ps->pps_list[i]);
2444 721 }
2445
2446 31867 int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
2447 {
2448 31867 int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
2449 31867 int prev_poc_lsb = pocTid0 % max_poc_lsb;
2450 31867 int prev_poc_msb = pocTid0 - prev_poc_lsb;
2451 int poc_msb;
2452
2453
4/4
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✓ Branch 3 taken 10786 times.
 31867 if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
2454 40 poc_msb = prev_poc_msb + max_poc_lsb;
2455
4/4
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 31827 else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
2456 316 poc_msb = prev_poc_msb - max_poc_lsb;
2457 else
2458 31511 poc_msb = prev_poc_msb;
2459
2460 // For BLA picture types, POCmsb is set to 0.
2461
4/4
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✓ Branch 3 taken 6 times.
 31867 if (nal_unit_type == HEVC_NAL_BLA_W_LP ||
2462
2/2
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✓ Branch 1 taken 31843 times.
 31846 nal_unit_type == HEVC_NAL_BLA_W_RADL ||
2463 nal_unit_type == HEVC_NAL_BLA_N_LP)
2464 24 poc_msb = 0;
2465
2466 31867 return poc_msb + poc_lsb;
2467 }
2468