FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/hevc_ps.c
Date: 2022-07-04 00:18:54
Exec Total Coverage
Lines: 847 1095 77.4%
Branches: 506 739 68.5%
Line Branch Exec Source
1 /*
2 * HEVC Parameter Set decoding
3 *
4 * Copyright (C) 2012 - 2103 Guillaume Martres
5 * Copyright (C) 2012 - 2103 Mickael Raulet
6 * Copyright (C) 2012 - 2013 Gildas Cocherel
7 * Copyright (C) 2013 Vittorio Giovara
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 "golomb.h"
28 #include "hevc_data.h"
29 #include "hevc_ps.h"
30
31 static const uint8_t default_scaling_list_intra[] = {
32 16, 16, 16, 16, 17, 18, 21, 24,
33 16, 16, 16, 16, 17, 19, 22, 25,
34 16, 16, 17, 18, 20, 22, 25, 29,
35 16, 16, 18, 21, 24, 27, 31, 36,
36 17, 17, 20, 24, 30, 35, 41, 47,
37 18, 19, 22, 27, 35, 44, 54, 65,
38 21, 22, 25, 31, 41, 54, 70, 88,
39 24, 25, 29, 36, 47, 65, 88, 115
40 };
41
42 static const uint8_t default_scaling_list_inter[] = {
43 16, 16, 16, 16, 17, 18, 20, 24,
44 16, 16, 16, 17, 18, 20, 24, 25,
45 16, 16, 17, 18, 20, 24, 25, 28,
46 16, 17, 18, 20, 24, 25, 28, 33,
47 17, 18, 20, 24, 25, 28, 33, 41,
48 18, 20, 24, 25, 28, 33, 41, 54,
49 20, 24, 25, 28, 33, 41, 54, 71,
50 24, 25, 28, 33, 41, 54, 71, 91
51 };
52
53 static const AVRational vui_sar[] = {
54 { 0, 1 },
55 { 1, 1 },
56 { 12, 11 },
57 { 10, 11 },
58 { 16, 11 },
59 { 40, 33 },
60 { 24, 11 },
61 { 20, 11 },
62 { 32, 11 },
63 { 80, 33 },
64 { 18, 11 },
65 { 15, 11 },
66 { 64, 33 },
67 { 160, 99 },
68 { 4, 3 },
69 { 3, 2 },
70 { 2, 1 },
71 };
72
73 static const uint8_t hevc_sub_width_c[] = {
74 1, 2, 2, 1
75 };
76
77 static const uint8_t hevc_sub_height_c[] = {
78 1, 2, 1, 1
79 };
80
81 3238 static void remove_pps(HEVCParamSets *s, int id)
82 {
83
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 3238 if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
84 1785 s->pps = NULL;
85 3238 av_buffer_unref(&s->pps_list[id]);
86 3238 }
87
88 600 static void remove_sps(HEVCParamSets *s, int id)
89 {
90 int i;
91
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 600 if (s->sps_list[id]) {
92
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 11 if (s->sps == (const HEVCSPS*)s->sps_list[id]->data)
93 11 s->sps = NULL;
94
95 /* drop all PPS that depend on this SPS */
96
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 715 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
97
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 704 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id)
98 11 remove_pps(s, i);
99
100
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 11 av_assert0(!(s->sps_list[id] && s->sps == (HEVCSPS*)s->sps_list[id]->data));
101 }
102 600 av_buffer_unref(&s->sps_list[id]);
103 600 }
104
105 587 static void remove_vps(HEVCParamSets *s, int id)
106 {
107 int i;
108
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 587 if (s->vps_list[id]) {
109
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 3 if (s->vps == (const HEVCVPS*)s->vps_list[id]->data)
110 3 s->vps = NULL;
111
112
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 51 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
113
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 48 if (s->sps_list[i] && ((HEVCSPS*)s->sps_list[i]->data)->vps_id == id)
114 3 remove_sps(s, i);
115 }
116 587 av_buffer_unref(&s->vps_list[id]);
117 587 }
118
119 12259 int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
120 ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
121 {
122 12259 uint8_t rps_predict = 0;
123 int delta_poc;
124 12259 int k0 = 0;
125 12259 int k = 0;
126 int i;
127
128
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 12259 if (rps != sps->st_rps && sps->nb_st_rps)
129 11107 rps_predict = get_bits1(gb);
130
131
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 12259 if (rps_predict) {
132 const ShortTermRPS *rps_ridx;
133 int delta_rps;
134 unsigned abs_delta_rps;
135 7359 uint8_t use_delta_flag = 0;
136 uint8_t delta_rps_sign;
137
138
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 7359 if (is_slice_header) {
139 619 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
140
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 619 if (delta_idx > sps->nb_st_rps) {
141 ✗ av_log(avctx, AV_LOG_ERROR,
142 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
143 ✗ delta_idx, sps->nb_st_rps);
144 ✗ return AVERROR_INVALIDDATA;
145 }
146 619 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
147 619 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
148 } else
149 6740 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
150
151 7359 delta_rps_sign = get_bits1(gb);
152 7359 abs_delta_rps = get_ue_golomb_long(gb) + 1;
153
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 7359 if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
154 ✗ av_log(avctx, AV_LOG_ERROR,
155 "Invalid value of abs_delta_rps: %d\n",
156 abs_delta_rps);
157 ✗ return AVERROR_INVALIDDATA;
158 }
159 7359 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
160
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 39260 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
161 31901 int used = rps->used[k] = get_bits1(gb);
162
163
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 31901 if (!used)
164 6341 use_delta_flag = get_bits1(gb);
165
166
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 31901 if (used || use_delta_flag) {
167
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 25610 if (i < rps_ridx->num_delta_pocs)
168 20187 delta_poc = delta_rps + rps_ridx->delta_poc[i];
169 else
170 5423 delta_poc = delta_rps;
171 25610 rps->delta_poc[k] = delta_poc;
172
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 25610 if (delta_poc < 0)
173 17731 k0++;
174 25610 k++;
175 }
176 }
177
178
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 7359 if (k >= FF_ARRAY_ELEMS(rps->used)) {
179 ✗ av_log(avctx, AV_LOG_ERROR,
180 "Invalid num_delta_pocs: %d\n", k);
181 ✗ return AVERROR_INVALIDDATA;
182 }
183
184 7359 rps->num_delta_pocs = k;
185 7359 rps->num_negative_pics = k0;
186 // sort in increasing order (smallest first)
187
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 7359 if (rps->num_delta_pocs != 0) {
188 int used, tmp;
189
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 25610 for (i = 1; i < rps->num_delta_pocs; i++) {
190 18251 delta_poc = rps->delta_poc[i];
191 18251 used = rps->used[i];
192
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 52239 for (k = i - 1; k >= 0; k--) {
193 33988 tmp = rps->delta_poc[k];
194
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 33988 if (delta_poc < tmp) {
195 10843 rps->delta_poc[k + 1] = tmp;
196 10843 rps->used[k + 1] = rps->used[k];
197 10843 rps->delta_poc[k] = delta_poc;
198 10843 rps->used[k] = used;
199 }
200 }
201 }
202 }
203
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 7359 if ((rps->num_negative_pics >> 1) != 0) {
204 int used;
205 5580 k = rps->num_negative_pics - 1;
206 // flip the negative values to largest first
207
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 12888 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
208 7308 delta_poc = rps->delta_poc[i];
209 7308 used = rps->used[i];
210 7308 rps->delta_poc[i] = rps->delta_poc[k];
211 7308 rps->used[i] = rps->used[k];
212 7308 rps->delta_poc[k] = delta_poc;
213 7308 rps->used[k] = used;
214 7308 k--;
215 }
216 }
217 } else {
218 unsigned int prev, nb_positive_pics;
219 4900 rps->num_negative_pics = get_ue_golomb_long(gb);
220 4900 nb_positive_pics = get_ue_golomb_long(gb);
221
222
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 4900 if (rps->num_negative_pics >= HEVC_MAX_REFS ||
223 nb_positive_pics >= HEVC_MAX_REFS) {
224 ✗ av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
225 ✗ return AVERROR_INVALIDDATA;
226 }
227
228 4900 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
229
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 4900 if (rps->num_delta_pocs) {
230 4583 prev = 0;
231
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 18414 for (i = 0; i < rps->num_negative_pics; i++) {
232 13831 delta_poc = get_ue_golomb_long(gb) + 1;
233
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 13831 if (delta_poc < 1 || delta_poc > 32768) {
234 ✗ av_log(avctx, AV_LOG_ERROR,
235 "Invalid value of delta_poc: %d\n",
236 delta_poc);
237 ✗ return AVERROR_INVALIDDATA;
238 }
239 13831 prev -= delta_poc;
240 13831 rps->delta_poc[i] = prev;
241 13831 rps->used[i] = get_bits1(gb);
242 }
243 4583 prev = 0;
244
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 5760 for (i = 0; i < nb_positive_pics; i++) {
245 1177 delta_poc = get_ue_golomb_long(gb) + 1;
246
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 1177 if (delta_poc < 1 || delta_poc > 32768) {
247 ✗ av_log(avctx, AV_LOG_ERROR,
248 "Invalid value of delta_poc: %d\n",
249 delta_poc);
250 ✗ return AVERROR_INVALIDDATA;
251 }
252 1177 prev += delta_poc;
253 1177 rps->delta_poc[rps->num_negative_pics + i] = prev;
254 1177 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
255 }
256 }
257 }
258 12259 return 0;
259 }
260
261
262 2093 static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
263 PTLCommon *ptl)
264 {
265 int i;
266
267
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 2093 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 43 + 1)
268 ✗ return -1;
269
270 2093 ptl->profile_space = get_bits(gb, 2);
271 2093 ptl->tier_flag = get_bits1(gb);
272 2093 ptl->profile_idc = get_bits(gb, 5);
273
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 2093 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
274 1751 av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
275
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 342 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
276 164 av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
277
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 178 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
278 8 av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
279
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 170 else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
280 130 av_log(avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n");
281 else
282 40 av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
283
284
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 69069 for (i = 0; i < 32; i++) {
285 66976 ptl->profile_compatibility_flag[i] = get_bits1(gb);
286
287
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 66976 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
288 40 ptl->profile_idc = i;
289 }
290 2093 ptl->progressive_source_flag = get_bits1(gb);
291 2093 ptl->interlaced_source_flag = get_bits1(gb);
292 2093 ptl->non_packed_constraint_flag = get_bits1(gb);
293 2093 ptl->frame_only_constraint_flag = get_bits1(gb);
294
295 #define check_profile_idc(idc) \
296 ptl->profile_idc == idc || ptl->profile_compatibility_flag[idc]
297
298
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 2093 if (check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(6) ||
299
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 1963 check_profile_idc(7) || check_profile_idc(8) || check_profile_idc(9) ||
300
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 1963 check_profile_idc(10)) {
301
302 130 ptl->max_12bit_constraint_flag = get_bits1(gb);
303 130 ptl->max_10bit_constraint_flag = get_bits1(gb);
304 130 ptl->max_8bit_constraint_flag = get_bits1(gb);
305 130 ptl->max_422chroma_constraint_flag = get_bits1(gb);
306 130 ptl->max_420chroma_constraint_flag = get_bits1(gb);
307 130 ptl->max_monochrome_constraint_flag = get_bits1(gb);
308 130 ptl->intra_constraint_flag = get_bits1(gb);
309 130 ptl->one_picture_only_constraint_flag = get_bits1(gb);
310 130 ptl->lower_bit_rate_constraint_flag = get_bits1(gb);
311
312
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 130 if (check_profile_idc(5) || check_profile_idc(9) || check_profile_idc(10)) {
313 ✗ ptl->max_14bit_constraint_flag = get_bits1(gb);
314 ✗ skip_bits_long(gb, 33); // XXX_reserved_zero_33bits[0..32]
315 } else {
316 130 skip_bits_long(gb, 34); // XXX_reserved_zero_34bits[0..33]
317 }
318
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 1963 } else if (check_profile_idc(2)) {
319 1651 skip_bits(gb, 7);
320 1651 ptl->one_picture_only_constraint_flag = get_bits1(gb);
321 1651 skip_bits_long(gb, 35); // XXX_reserved_zero_35bits[0..34]
322 } else {
323 312 skip_bits_long(gb, 43); // XXX_reserved_zero_43bits[0..42]
324 }
325
326
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 2093 if (check_profile_idc(1) || check_profile_idc(2) || check_profile_idc(3) ||
327
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 130 check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(9))
328 2093 ptl->inbld_flag = get_bits1(gb);
329 else
330 ✗ skip_bits1(gb);
331 #undef check_profile_idc
332
333 2093 return 0;
334 }
335
336 2041 static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
337 PTL *ptl, int max_num_sub_layers)
338 {
339 int i;
340
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 4082 if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 ||
341
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 2041 get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
342 ✗ av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
343 ✗ return -1;
344 }
345
346 2041 ptl->general_ptl.level_idc = get_bits(gb, 8);
347
348
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 2509 for (i = 0; i < max_num_sub_layers - 1; i++) {
349 468 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
350 468 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
351 }
352
353
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 2041 if (max_num_sub_layers - 1> 0)
354
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 1656 for (i = max_num_sub_layers - 1; i < 8; i++)
355 1420 skip_bits(gb, 2); // reserved_zero_2bits[i]
356
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 2509 for (i = 0; i < max_num_sub_layers - 1; i++) {
357
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 520 if (ptl->sub_layer_profile_present_flag[i] &&
358 52 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
359 ✗ av_log(avctx, AV_LOG_ERROR,
360 "PTL information for sublayer %i too short\n", i);
361 ✗ return -1;
362 }
363
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 468 if (ptl->sub_layer_level_present_flag[i]) {
364
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 52 if (get_bits_left(gb) < 8) {
365 ✗ av_log(avctx, AV_LOG_ERROR,
366 "Not enough data for sublayer %i level_idc\n", i);
367 ✗ return -1;
368 } else
369 52 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
370 }
371 }
372
373 2041 return 0;
374 }
375
376 97 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
377 int subpic_params_present)
378 {
379 int i;
380
381
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 194 for (i = 0; i < nb_cpb; i++) {
382 97 get_ue_golomb_long(gb); // bit_rate_value_minus1
383 97 get_ue_golomb_long(gb); // cpb_size_value_minus1
384
385
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 97 if (subpic_params_present) {
386 26 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
387 26 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
388 }
389 97 skip_bits1(gb); // cbr_flag
390 }
391 97 }
392
393 51 static int decode_hrd(GetBitContext *gb, int common_inf_present,
394 int max_sublayers)
395 {
396 51 int nal_params_present = 0, vcl_params_present = 0;
397 51 int subpic_params_present = 0;
398 int i;
399
400
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 51 if (common_inf_present) {
401 51 nal_params_present = get_bits1(gb);
402 51 vcl_params_present = get_bits1(gb);
403
404
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 51 if (nal_params_present || vcl_params_present) {
405 51 subpic_params_present = get_bits1(gb);
406
407
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 51 if (subpic_params_present) {
408 13 skip_bits(gb, 8); // tick_divisor_minus2
409 13 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
410 13 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
411 13 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
412 }
413
414 51 skip_bits(gb, 4); // bit_rate_scale
415 51 skip_bits(gb, 4); // cpb_size_scale
416
417
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 51 if (subpic_params_present)
418 13 skip_bits(gb, 4); // cpb_size_du_scale
419
420 51 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
421 51 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
422 51 skip_bits(gb, 5); // dpb_output_delay_length_minus1
423 }
424 }
425
426
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 102 for (i = 0; i < max_sublayers; i++) {
427 51 int low_delay = 0;
428 51 unsigned int nb_cpb = 1;
429 51 int fixed_rate = get_bits1(gb);
430
431
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 51 if (!fixed_rate)
432 23 fixed_rate = get_bits1(gb);
433
434
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 51 if (fixed_rate)
435 28 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
436 else
437 23 low_delay = get_bits1(gb);
438
439
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 51 if (!low_delay) {
440 51 nb_cpb = get_ue_golomb_long(gb) + 1;
441
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 51 if (nb_cpb < 1 || nb_cpb > 32) {
442 ✗ av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb);
443 ✗ return AVERROR_INVALIDDATA;
444 }
445 }
446
447
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 51 if (nal_params_present)
448 51 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
449
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 51 if (vcl_params_present)
450 46 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
451 }
452 51 return 0;
453 }
454
455 1024 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
456 HEVCParamSets *ps)
457 {
458 int i,j;
459 1024 int vps_id = 0;
460 ptrdiff_t nal_size;
461 HEVCVPS *vps;
462 1024 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
463
464
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 1024 if (!vps_buf)
465 ✗ return AVERROR(ENOMEM);
466 1024 vps = (HEVCVPS*)vps_buf->data;
467
468 1024 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
469
470 1024 nal_size = gb->buffer_end - gb->buffer;
471
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 1024 if (nal_size > sizeof(vps->data)) {
472 ✗ av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized VPS "
473 "(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
474 nal_size, sizeof(vps->data));
475 ✗ vps->data_size = sizeof(vps->data);
476 } else {
477 1024 vps->data_size = nal_size;
478 }
479 1024 memcpy(vps->data, gb->buffer, vps->data_size);
480
481 1024 vps_id = get_bits(gb, 4);
482
483
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 1024 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
484 ✗ av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
485 ✗ goto err;
486 }
487
488 1024 vps->vps_max_layers = get_bits(gb, 6) + 1;
489 1024 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
490 1024 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
491
492
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 1024 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
493 ✗ av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
494 ✗ goto err;
495 }
496
497
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 1024 if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) {
498 ✗ av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
499 vps->vps_max_sub_layers);
500 ✗ goto err;
501 }
502
503
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 1024 if (parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers) < 0)
504 ✗ goto err;
505
506 1024 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
507
508
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 1024 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
509
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 2195 for (; i < vps->vps_max_sub_layers; i++) {
510 1171 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
511 1171 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
512 1171 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
513
514
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 1171 if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
515 ✗ av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
516 ✗ vps->vps_max_dec_pic_buffering[i] - 1);
517 ✗ goto err;
518 }
519
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 1171 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
520 ✗ av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
521 vps->vps_num_reorder_pics[i]);
522 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
523 ✗ goto err;
524 }
525 }
526
527 1024 vps->vps_max_layer_id = get_bits(gb, 6);
528 1024 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
529
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 1024 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
530
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 1024 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
531 ✗ av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
532 ✗ goto err;
533 }
534
535
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 1024 for (i = 1; i < vps->vps_num_layer_sets; i++)
536 ✗ for (j = 0; j <= vps->vps_max_layer_id; j++)
537 ✗ skip_bits(gb, 1); // layer_id_included_flag[i][j]
538
539 1024 vps->vps_timing_info_present_flag = get_bits1(gb);
540
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 1024 if (vps->vps_timing_info_present_flag) {
541 38 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
542 38 vps->vps_time_scale = get_bits_long(gb, 32);
543 38 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
544
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 38 if (vps->vps_poc_proportional_to_timing_flag)
545 38 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
546 38 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
547
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 38 if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) {
548 ✗ av_log(avctx, AV_LOG_ERROR,
549 "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
550 ✗ goto err;
551 }
552
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 43 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
553 5 int common_inf_present = 1;
554
555 5 get_ue_golomb_long(gb); // hrd_layer_set_idx
556
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 5 if (i)
557 ✗ common_inf_present = get_bits1(gb);
558 5 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
559 }
560 }
561 1024 get_bits1(gb); /* vps_extension_flag */
562
563
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 1024 if (get_bits_left(gb) < 0) {
564 ✗ av_log(avctx, AV_LOG_ERROR,
565 ✗ "Overread VPS by %d bits\n", -get_bits_left(gb));
566 ✗ if (ps->vps_list[vps_id])
567 ✗ goto err;
568 }
569
570
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 1024 if (ps->vps_list[vps_id] &&
571
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 440 !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
572 437 av_buffer_unref(&vps_buf);
573 } else {
574 587 remove_vps(ps, vps_id);
575 587 ps->vps_list[vps_id] = vps_buf;
576 }
577
578 1024 return 0;
579
580 ✗ err:
581 ✗ av_buffer_unref(&vps_buf);
582 ✗ return AVERROR_INVALIDDATA;
583 }
584
585 246 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
586 int apply_defdispwin, HEVCSPS *sps)
587 {
588 246 VUI backup_vui, *vui = &sps->vui;
589 GetBitContext backup;
590 246 int sar_present, alt = 0;
591
592 246 av_log(avctx, AV_LOG_DEBUG, "Decoding VUI\n");
593
594 246 sar_present = get_bits1(gb);
595
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 246 if (sar_present) {
596 108 uint8_t sar_idx = get_bits(gb, 8);
597
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 108 if (sar_idx < FF_ARRAY_ELEMS(vui_sar))
598 108 vui->sar = vui_sar[sar_idx];
599 ✗ else if (sar_idx == 255) {
600 ✗ vui->sar.num = get_bits(gb, 16);
601 ✗ vui->sar.den = get_bits(gb, 16);
602 } else
603 ✗ av_log(avctx, AV_LOG_WARNING,
604 "Unknown SAR index: %u.\n", sar_idx);
605 }
606
607 246 vui->overscan_info_present_flag = get_bits1(gb);
608
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 246 if (vui->overscan_info_present_flag)
609 ✗ vui->overscan_appropriate_flag = get_bits1(gb);
610
611 246 vui->video_signal_type_present_flag = get_bits1(gb);
612
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 246 if (vui->video_signal_type_present_flag) {
613 44 vui->video_format = get_bits(gb, 3);
614 44 vui->video_full_range_flag = get_bits1(gb);
615 44 vui->colour_description_present_flag = get_bits1(gb);
616
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 44 if (vui->video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
617 5 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
618
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 44 if (vui->colour_description_present_flag) {
619 39 vui->colour_primaries = get_bits(gb, 8);
620 39 vui->transfer_characteristic = get_bits(gb, 8);
621 39 vui->matrix_coeffs = get_bits(gb, 8);
622
623 // Set invalid values to "unspecified"
624
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 39 if (!av_color_primaries_name(vui->colour_primaries))
625 ✗ vui->colour_primaries = AVCOL_PRI_UNSPECIFIED;
626
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 39 if (!av_color_transfer_name(vui->transfer_characteristic))
627 ✗ vui->transfer_characteristic = AVCOL_TRC_UNSPECIFIED;
628
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 39 if (!av_color_space_name(vui->matrix_coeffs))
629 ✗ vui->matrix_coeffs = AVCOL_SPC_UNSPECIFIED;
630
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 39 if (vui->matrix_coeffs == AVCOL_SPC_RGB) {
631 ✗ switch (sps->pix_fmt) {
632 ✗ case AV_PIX_FMT_YUV444P:
633 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP;
634 ✗ break;
635 ✗ case AV_PIX_FMT_YUV444P10:
636 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP10;
637 ✗ break;
638 ✗ case AV_PIX_FMT_YUV444P12:
639 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP12;
640 ✗ break;
641 }
642 }
643 }
644 }
645
646 246 vui->chroma_loc_info_present_flag = get_bits1(gb);
647
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 246 if (vui->chroma_loc_info_present_flag) {
648 21 vui->chroma_sample_loc_type_top_field = get_ue_golomb_long(gb);
649 21 vui->chroma_sample_loc_type_bottom_field = get_ue_golomb_long(gb);
650 }
651
652 246 vui->neutra_chroma_indication_flag = get_bits1(gb);
653 246 vui->field_seq_flag = get_bits1(gb);
654 246 vui->frame_field_info_present_flag = get_bits1(gb);
655
656 // Backup context in case an alternate header is detected
657 246 memcpy(&backup, gb, sizeof(backup));
658 246 memcpy(&backup_vui, vui, sizeof(backup_vui));
659
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 246 if (get_bits_left(gb) >= 68 && show_bits(gb, 21) == 0x100000) {
660 ✗ vui->default_display_window_flag = 0;
661 ✗ av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
662 } else
663 246 vui->default_display_window_flag = get_bits1(gb);
664
665
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 246 if (vui->default_display_window_flag) {
666 91 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
667 91 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
668 91 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
669 91 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
670 91 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
671 91 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
672
673
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 91 if (apply_defdispwin &&
674
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 40 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
675 ✗ av_log(avctx, AV_LOG_DEBUG,
676 "discarding vui default display window, "
677 "original values are l:%u r:%u t:%u b:%u\n",
678 vui->def_disp_win.left_offset,
679 vui->def_disp_win.right_offset,
680 vui->def_disp_win.top_offset,
681 vui->def_disp_win.bottom_offset);
682
683 ✗ vui->def_disp_win.left_offset =
684 ✗ vui->def_disp_win.right_offset =
685 ✗ vui->def_disp_win.top_offset =
686 ✗ vui->def_disp_win.bottom_offset = 0;
687 }
688 }
689
690 246 timing_info:
691 246 vui->vui_timing_info_present_flag = get_bits1(gb);
692
693
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 246 if (vui->vui_timing_info_present_flag) {
694
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 86 if( get_bits_left(gb) < 66 && !alt) {
695 // The alternate syntax seem to have timing info located
696 // at where def_disp_win is normally located
697 ✗ av_log(avctx, AV_LOG_WARNING,
698 "Strange VUI timing information, retrying...\n");
699 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
700 ✗ memcpy(gb, &backup, sizeof(backup));
701 ✗ alt = 1;
702 ✗ goto timing_info;
703 }
704 86 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
705 86 vui->vui_time_scale = get_bits_long(gb, 32);
706
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 86 if (alt) {
707 ✗ av_log(avctx, AV_LOG_INFO, "Retry got %"PRIu32"/%"PRIu32" fps\n",
708 vui->vui_time_scale, vui->vui_num_units_in_tick);
709 }
710 86 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
711
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 86 if (vui->vui_poc_proportional_to_timing_flag)
712 38 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
713 86 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
714
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 86 if (vui->vui_hrd_parameters_present_flag)
715 46 decode_hrd(gb, 1, sps->max_sub_layers);
716 }
717
718 246 vui->bitstream_restriction_flag = get_bits1(gb);
719
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 246 if (vui->bitstream_restriction_flag) {
720
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 112 if (get_bits_left(gb) < 8 && !alt) {
721 ✗ av_log(avctx, AV_LOG_WARNING,
722 "Strange VUI bitstream restriction information, retrying"
723 " from timing information...\n");
724 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
725 ✗ memcpy(gb, &backup, sizeof(backup));
726 ✗ alt = 1;
727 ✗ goto timing_info;
728 }
729 112 vui->tiles_fixed_structure_flag = get_bits1(gb);
730 112 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
731 112 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
732 112 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
733 112 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
734 112 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
735 112 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
736 112 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
737 }
738
739
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 246 if (get_bits_left(gb) < 1 && !alt) {
740 // XXX: Alternate syntax when sps_range_extension_flag != 0?
741 ✗ av_log(avctx, AV_LOG_WARNING,
742 "Overread in VUI, retrying from timing information...\n");
743 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
744 ✗ memcpy(gb, &backup, sizeof(backup));
745 ✗ alt = 1;
746 ✗ goto timing_info;
747 }
748 246 }
749
750 511 static void set_default_scaling_list_data(ScalingList *sl)
751 {
752 int matrixId;
753
754
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 3577 for (matrixId = 0; matrixId < 6; matrixId++) {
755 // 4x4 default is 16
756 3066 memset(sl->sl[0][matrixId], 16, 16);
757 3066 sl->sl_dc[0][matrixId] = 16; // default for 16x16
758 3066 sl->sl_dc[1][matrixId] = 16; // default for 32x32
759 }
760 511 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
761 511 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
762 511 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
763 511 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
764 511 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
765 511 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
766 511 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
767 511 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
768 511 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
769 511 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
770 511 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
771 511 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
772 511 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
773 511 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
774 511 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
775 511 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
776 511 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
777 511 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
778 511 }
779
780 495 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl, HEVCSPS *sps)
781 {
782 uint8_t scaling_list_pred_mode_flag;
783 uint8_t scaling_list_dc_coef[2][6];
784 int size_id, matrix_id, pos;
785 int i;
786
787
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 2475 for (size_id = 0; size_id < 4; size_id++)
788
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 11880 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
789 9900 scaling_list_pred_mode_flag = get_bits1(gb);
790
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 9900 if (!scaling_list_pred_mode_flag) {
791 3978 unsigned int delta = get_ue_golomb_long(gb);
792 /* Only need to handle non-zero delta. Zero means default,
793 * which should already be in the arrays. */
794
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 3978 if (delta) {
795 // Copy from previous array.
796
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 3852 delta *= (size_id == 3) ? 3 : 1;
797
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 3852 if (matrix_id < delta) {
798 ✗ av_log(avctx, AV_LOG_ERROR,
799 "Invalid delta in scaling list data: %d.\n", delta);
800 ✗ return AVERROR_INVALIDDATA;
801 }
802
803
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 3852 memcpy(sl->sl[size_id][matrix_id],
804 3852 sl->sl[size_id][matrix_id - delta],
805 size_id > 0 ? 64 : 16);
806
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 3852 if (size_id > 1)
807 530 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
808 }
809 } else {
810 int next_coef, coef_num;
811 int32_t scaling_list_delta_coef;
812
813 5922 next_coef = 8;
814 5922 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
815
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 5922 if (size_id > 1) {
816 3388 int scaling_list_coeff_minus8 = get_se_golomb(gb);
817
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 3388 if (scaling_list_coeff_minus8 < -7 ||
818 scaling_list_coeff_minus8 > 247)
819 ✗ return AVERROR_INVALIDDATA;
820 3388 scaling_list_dc_coef[size_id - 2][matrix_id] = scaling_list_coeff_minus8 + 8;
821 3388 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
822 3388 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
823 }
824
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 321186 for (i = 0; i < coef_num; i++) {
825
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 315264 if (size_id == 0)
826 21248 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
827 21248 ff_hevc_diag_scan4x4_x[i];
828 else
829 294016 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
830 294016 ff_hevc_diag_scan8x8_x[i];
831
832 315264 scaling_list_delta_coef = get_se_golomb(gb);
833 315264 next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256;
834 315264 sl->sl[size_id][matrix_id][pos] = next_coef;
835 }
836 }
837 }
838
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 495 if (sps->chroma_format_idc == 3) {
840
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 2795 for (i = 0; i < 64; i++) {
841 2752 sl->sl[3][1][i] = sl->sl[2][1][i];
842 2752 sl->sl[3][2][i] = sl->sl[2][2][i];
843 2752 sl->sl[3][4][i] = sl->sl[2][4][i];
844 2752 sl->sl[3][5][i] = sl->sl[2][5][i];
845 }
846 43 sl->sl_dc[1][1] = sl->sl_dc[0][1];
847 43 sl->sl_dc[1][2] = sl->sl_dc[0][2];
848 43 sl->sl_dc[1][4] = sl->sl_dc[0][4];
849 43 sl->sl_dc[1][5] = sl->sl_dc[0][5];
850 }
851
852
853 495 return 0;
854 }
855
856 1017 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
857 {
858 const AVPixFmtDescriptor *desc;
859
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 1017 switch (sps->bit_depth) {
860 883 case 8:
861
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 883 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
862
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 883 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
863
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 883 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
864
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 883 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
865 883 break;
866 ✗ case 9:
867 ✗ if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY9;
868 ✗ if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
869 ✗ if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
870 ✗ if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
871 ✗ break;
872 111 case 10:
873
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 111 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10;
874
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 111 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
875
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 111 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
876
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 111 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
877 111 break;
878 23 case 12:
879
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 23 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12;
880
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 23 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
881
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 23 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
882
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 23 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
883 23 break;
884 ✗ default:
885 ✗ av_log(avctx, AV_LOG_ERROR,
886 "The following bit-depths are currently specified: 8, 9, 10 and 12 bits, "
887 "chroma_format_idc is %d, depth is %d\n",
888 sps->chroma_format_idc, sps->bit_depth);
889 ✗ return AVERROR_INVALIDDATA;
890 }
891
892 1017 desc = av_pix_fmt_desc_get(sps->pix_fmt);
893
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 1017 if (!desc)
894 ✗ return AVERROR(EINVAL);
895
896 1017 sps->hshift[0] = sps->vshift[0] = 0;
897 1017 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
898 1017 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
899
900 1017 sps->pixel_shift = sps->bit_depth > 8;
901
902 1017 return 0;
903 }
904
905 1017 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
906 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
907 {
908 HEVCWindow *ow;
909 1017 int ret = 0;
910 int log2_diff_max_min_transform_block_size;
911 int bit_depth_chroma, start, vui_present, sublayer_ordering_info;
912 int i;
913
914 // Coded parameters
915
916 1017 sps->vps_id = get_bits(gb, 4);
917
918
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 1017 if (vps_list && !vps_list[sps->vps_id]) {
919 ✗ av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
920 sps->vps_id);
921 ✗ return AVERROR_INVALIDDATA;
922 }
923
924 1017 sps->max_sub_layers = get_bits(gb, 3) + 1;
925
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 1017 if (sps->max_sub_layers > HEVC_MAX_SUB_LAYERS) {
926 ✗ av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
927 sps->max_sub_layers);
928 ✗ return AVERROR_INVALIDDATA;
929 }
930
931 1017 sps->temporal_id_nesting_flag = get_bits(gb, 1);
932
933
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 1017 if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0)
934 ✗ return ret;
935
936 1017 *sps_id = get_ue_golomb_long(gb);
937
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 1017 if (*sps_id >= HEVC_MAX_SPS_COUNT) {
938 ✗ av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
939 ✗ return AVERROR_INVALIDDATA;
940 }
941
942 1017 sps->chroma_format_idc = get_ue_golomb_long(gb);
943
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 1017 if (sps->chroma_format_idc > 3U) {
944 ✗ av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
945 ✗ return AVERROR_INVALIDDATA;
946 }
947
948
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 1017 if (sps->chroma_format_idc == 3)
949 32 sps->separate_colour_plane_flag = get_bits1(gb);
950
951
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 1017 if (sps->separate_colour_plane_flag)
952 ✗ sps->chroma_format_idc = 0;
953
954 1017 sps->width = get_ue_golomb_long(gb);
955 1017 sps->height = get_ue_golomb_long(gb);
956
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 1017 if ((ret = av_image_check_size(sps->width,
957 1017 sps->height, 0, avctx)) < 0)
958 ✗ return ret;
959
960
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 1017 if (get_bits1(gb)) { // pic_conformance_flag
961 841 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
962 841 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
963 841 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
964 841 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
965 841 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
966 841 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
967
968
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 841 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
969 ✗ av_log(avctx, AV_LOG_DEBUG,
970 "discarding sps conformance window, "
971 "original values are l:%u r:%u t:%u b:%u\n",
972 sps->pic_conf_win.left_offset,
973 sps->pic_conf_win.right_offset,
974 sps->pic_conf_win.top_offset,
975 sps->pic_conf_win.bottom_offset);
976
977 ✗ sps->pic_conf_win.left_offset =
978 ✗ sps->pic_conf_win.right_offset =
979 ✗ sps->pic_conf_win.top_offset =
980 ✗ sps->pic_conf_win.bottom_offset = 0;
981 }
982 841 sps->output_window = sps->pic_conf_win;
983 }
984
985 1017 sps->bit_depth = get_ue_golomb_long(gb) + 8;
986 1017 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
987
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 1017 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
988 ✗ av_log(avctx, AV_LOG_ERROR,
989 "Luma bit depth (%d) is different from chroma bit depth (%d), "
990 "this is unsupported.\n",
991 sps->bit_depth, bit_depth_chroma);
992 ✗ return AVERROR_INVALIDDATA;
993 }
994 1017 sps->bit_depth_chroma = bit_depth_chroma;
995
996 1017 ret = map_pixel_format(avctx, sps);
997
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 1017 if (ret < 0)
998 ✗ return ret;
999
1000 1017 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
1001
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 1017 if (sps->log2_max_poc_lsb > 16) {
1002 ✗ av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
1003 ✗ sps->log2_max_poc_lsb - 4);
1004 ✗ return AVERROR_INVALIDDATA;
1005 }
1006
1007 1017 sublayer_ordering_info = get_bits1(gb);
1008
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 1017 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
1009
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 2181 for (i = start; i < sps->max_sub_layers; i++) {
1010 1164 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
1011 1164 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
1012 1164 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
1013
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 1164 if (sps->temporal_layer[i].max_dec_pic_buffering > (unsigned)HEVC_MAX_DPB_SIZE) {
1014 ✗ av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
1015 ✗ sps->temporal_layer[i].max_dec_pic_buffering - 1U);
1016 ✗ return AVERROR_INVALIDDATA;
1017 }
1018
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 1164 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
1019 ✗ av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
1020 sps->temporal_layer[i].num_reorder_pics);
1021 ✗ if (avctx->err_recognition & AV_EF_EXPLODE ||
1022 ✗ sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) {
1023 ✗ return AVERROR_INVALIDDATA;
1024 }
1025 ✗ sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
1026 }
1027 }
1028
1029
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 1017 if (!sublayer_ordering_info) {
1030
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 222 for (i = 0; i < start; i++) {
1031 82 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
1032 82 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
1033 82 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
1034 }
1035 }
1036
1037 1017 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
1038 1017 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
1039 1017 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
1040 1017 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
1041 1017 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
1042 1017 sps->log2_min_tb_size;
1043
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 1017 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
1045 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
1046 ✗ return AVERROR_INVALIDDATA;
1047 }
1048
1049
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 1017 if (sps->log2_diff_max_min_coding_block_size > 30) {
1050 ✗ 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);
1051 ✗ return AVERROR_INVALIDDATA;
1052 }
1053
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 1017 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
1055 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
1056 ✗ return AVERROR_INVALIDDATA;
1057 }
1058
1059
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 1017 if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
1060 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
1061 ✗ return AVERROR_INVALIDDATA;
1062 }
1063
1064 1017 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
1065 1017 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
1066
1067 1017 sps->scaling_list_enable_flag = get_bits1(gb);
1068
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 1017 if (sps->scaling_list_enable_flag) {
1069 42 set_default_scaling_list_data(&sps->scaling_list);
1070
1071
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 42 if (get_bits1(gb)) {
1072 26 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
1073
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 26 if (ret < 0)
1074 ✗ return ret;
1075 }
1076 }
1077
1078 1017 sps->amp_enabled_flag = get_bits1(gb);
1079 1017 sps->sao_enabled = get_bits1(gb);
1080
1081 1017 sps->pcm_enabled_flag = get_bits1(gb);
1082
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 1017 if (sps->pcm_enabled_flag) {
1083 75 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
1084 75 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
1085 75 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
1086 150 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
1087 75 get_ue_golomb_long(gb);
1088
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 75 if (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) {
1089 ✗ av_log(avctx, AV_LOG_ERROR,
1090 "PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
1091 ✗ sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, sps->bit_depth);
1092 ✗ return AVERROR_INVALIDDATA;
1093 }
1094
1095 75 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
1096 }
1097
1098 1017 sps->nb_st_rps = get_ue_golomb_long(gb);
1099
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 1017 if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
1100 ✗ av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
1101 sps->nb_st_rps);
1102 ✗ return AVERROR_INVALIDDATA;
1103 }
1104
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 10062 for (i = 0; i < sps->nb_st_rps; i++) {
1105
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 9045 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
1106 sps, 0)) < 0)
1107 ✗ return ret;
1108 }
1109
1110 1017 sps->long_term_ref_pics_present_flag = get_bits1(gb);
1111
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 1017 if (sps->long_term_ref_pics_present_flag) {
1112 101 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1113
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 101 if (sps->num_long_term_ref_pics_sps > HEVC_MAX_LONG_TERM_REF_PICS) {
1114 ✗ av_log(avctx, AV_LOG_ERROR, "Too many long term ref pics: %d.\n",
1115 ✗ sps->num_long_term_ref_pics_sps);
1116 ✗ return AVERROR_INVALIDDATA;
1117 }
1118
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 165 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1119 64 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1120 64 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
1121 }
1122 }
1123
1124 1017 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
1125 1017 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
1126 1017 sps->vui.sar = (AVRational){0, 1};
1127 1017 vui_present = get_bits1(gb);
1128
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 1017 if (vui_present)
1129 246 decode_vui(gb, avctx, apply_defdispwin, sps);
1130
1131
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 1017 if (get_bits1(gb)) { // sps_extension_flag
1132 71 sps->sps_range_extension_flag = get_bits1(gb);
1133 71 skip_bits(gb, 7); //sps_extension_7bits = get_bits(gb, 7);
1134
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 71 if (sps->sps_range_extension_flag) {
1135 51 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
1136 51 sps->transform_skip_context_enabled_flag = get_bits1(gb);
1137 51 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
1138
1139 51 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
1140
1141 51 sps->extended_precision_processing_flag = get_bits1(gb);
1142
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 51 if (sps->extended_precision_processing_flag)
1143 ✗ av_log(avctx, AV_LOG_WARNING,
1144 "extended_precision_processing_flag not yet implemented\n");
1145
1146 51 sps->intra_smoothing_disabled_flag = get_bits1(gb);
1147 51 sps->high_precision_offsets_enabled_flag = get_bits1(gb);
1148
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 51 if (sps->high_precision_offsets_enabled_flag)
1149 33 av_log(avctx, AV_LOG_WARNING,
1150 "high_precision_offsets_enabled_flag not yet implemented\n");
1151
1152 51 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
1153
1154 51 sps->cabac_bypass_alignment_enabled_flag = get_bits1(gb);
1155
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 51 if (sps->cabac_bypass_alignment_enabled_flag)
1156 ✗ av_log(avctx, AV_LOG_WARNING,
1157 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1158 }
1159 }
1160
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 1017 if (apply_defdispwin) {
1161 415 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1162 415 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1163 415 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1164 415 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1165 }
1166
1167 1017 ow = &sps->output_window;
1168
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 1017 if (ow->left_offset >= INT_MAX - ow->right_offset ||
1169
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 1017 ow->top_offset >= INT_MAX - ow->bottom_offset ||
1170
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 1017 ow->left_offset + ow->right_offset >= sps->width ||
1171
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 1017 ow->top_offset + ow->bottom_offset >= sps->height) {
1172 ✗ av_log(avctx, AV_LOG_WARNING, "Invalid cropping offsets: %u/%u/%u/%u\n",
1173 ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset);
1174 ✗ if (avctx->err_recognition & AV_EF_EXPLODE) {
1175 ✗ return AVERROR_INVALIDDATA;
1176 }
1177 ✗ av_log(avctx, AV_LOG_WARNING,
1178 "Displaying the whole video surface.\n");
1179 ✗ memset(ow, 0, sizeof(*ow));
1180 ✗ memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1181 }
1182
1183 // Inferred parameters
1184 1017 sps->log2_ctb_size = sps->log2_min_cb_size +
1185 1017 sps->log2_diff_max_min_coding_block_size;
1186 1017 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1187
1188
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 1017 if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) {
1189 ✗ av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1190 ✗ return AVERROR_INVALIDDATA;
1191 }
1192
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 1017 if (sps->log2_ctb_size < 4) {
1193 ✗ av_log(avctx,
1194 AV_LOG_ERROR,
1195 "log2_ctb_size %d differs from the bounds of any known profile\n",
1196 sps->log2_ctb_size);
1197 ✗ avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1198 ✗ return AVERROR_INVALIDDATA;
1199 }
1200
1201 1017 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1202 1017 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1203 1017 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1204
1205 1017 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1206 1017 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1207 1017 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1208 1017 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1209 1017 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1210 1017 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1211 1017 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1212
1213 1017 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1214
1215
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 1017 if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) ||
1216
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 1017 av_mod_uintp2(sps->height, sps->log2_min_cb_size)) {
1217 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1218 ✗ return AVERROR_INVALIDDATA;
1219 }
1220
1221
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 1017 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1222 ✗ av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1223 sps->max_transform_hierarchy_depth_inter);
1224 ✗ return AVERROR_INVALIDDATA;
1225 }
1226
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 1017 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1227 ✗ av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1228 sps->max_transform_hierarchy_depth_intra);
1229 ✗ return AVERROR_INVALIDDATA;
1230 }
1231
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 1017 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1232 ✗ av_log(avctx, AV_LOG_ERROR,
1233 "max transform block size out of range: %d\n",
1234 sps->log2_max_trafo_size);
1235 ✗ return AVERROR_INVALIDDATA;
1236 }
1237
1238
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 1017 if (get_bits_left(gb) < 0) {
1239 ✗ av_log(avctx, AV_LOG_ERROR,
1240 ✗ "Overread SPS by %d bits\n", -get_bits_left(gb));
1241 ✗ return AVERROR_INVALIDDATA;
1242 }
1243
1244 1017 return 0;
1245 }
1246
1247 1017 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1248 HEVCParamSets *ps, int apply_defdispwin)
1249 {
1250 HEVCSPS *sps;
1251 1017 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
1252 unsigned int sps_id;
1253 int ret;
1254 ptrdiff_t nal_size;
1255
1256
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 1017 if (!sps_buf)
1257 ✗ return AVERROR(ENOMEM);
1258 1017 sps = (HEVCSPS*)sps_buf->data;
1259
1260 1017 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1261
1262 1017 nal_size = gb->buffer_end - gb->buffer;
1263
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 1017 if (nal_size > sizeof(sps->data)) {
1264 ✗ av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized SPS "
1265 "(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
1266 nal_size, sizeof(sps->data));
1267 ✗ sps->data_size = sizeof(sps->data);
1268 } else {
1269 1017 sps->data_size = nal_size;
1270 }
1271 1017 memcpy(sps->data, gb->buffer, sps->data_size);
1272
1273 1017 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1274 apply_defdispwin,
1275 1017 ps->vps_list, avctx);
1276
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 1017 if (ret < 0) {
1277 ✗ av_buffer_unref(&sps_buf);
1278 ✗ return ret;
1279 }
1280
1281
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 1017 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1282 ✗ av_log(avctx, AV_LOG_DEBUG,
1283 "Parsed SPS: id %d; coded wxh: %dx%d; "
1284 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1285 sps_id, sps->width, sps->height,
1286 ✗ sps->width - (sps->output_window.left_offset + sps->output_window.right_offset),
1287 ✗ sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset),
1288 av_get_pix_fmt_name(sps->pix_fmt));
1289 }
1290
1291 /* check if this is a repeat of an already parsed SPS, then keep the
1292 * original one.
1293 * otherwise drop all PPSes that depend on it */
1294
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 1017 if (ps->sps_list[sps_id] &&
1295
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 428 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1296 420 av_buffer_unref(&sps_buf);
1297 } else {
1298 597 remove_sps(ps, sps_id);
1299 597 ps->sps_list[sps_id] = sps_buf;
1300 }
1301
1302 1017 return 0;
1303 }
1304
1305 3231 static void hevc_pps_free(void *opaque, uint8_t *data)
1306 {
1307 3231 HEVCPPS *pps = (HEVCPPS*)data;
1308
1309 3231 av_freep(&pps->column_width);
1310 3231 av_freep(&pps->row_height);
1311 3231 av_freep(&pps->col_bd);
1312 3231 av_freep(&pps->row_bd);
1313 3231 av_freep(&pps->col_idxX);
1314 3231 av_freep(&pps->ctb_addr_rs_to_ts);
1315 3231 av_freep(&pps->ctb_addr_ts_to_rs);
1316 3231 av_freep(&pps->tile_pos_rs);
1317 3231 av_freep(&pps->tile_id);
1318 3231 av_freep(&pps->min_tb_addr_zs_tab);
1319
1320 3231 av_freep(&pps);
1321 3231 }
1322
1323 76 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1324 HEVCPPS *pps, HEVCSPS *sps) {
1325 int i;
1326
1327
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 76 if (pps->transform_skip_enabled_flag) {
1328 76 pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
1329 }
1330 76 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1331 76 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1332
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 76 if (pps->chroma_qp_offset_list_enabled_flag) {
1333 10 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb);
1334 10 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb);
1335
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 10 if (pps->chroma_qp_offset_list_len_minus1 > 5) {
1336 ✗ av_log(avctx, AV_LOG_ERROR,
1337 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1338 ✗ return AVERROR_INVALIDDATA;
1339 }
1340
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 20 for (i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1341 10 pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
1342
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 10 if (pps->cb_qp_offset_list[i]) {
1343 10 av_log(avctx, AV_LOG_WARNING,
1344 "cb_qp_offset_list not tested yet.\n");
1345 }
1346 10 pps->cr_qp_offset_list[i] = get_se_golomb_long(gb);
1347
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 10 if (pps->cr_qp_offset_list[i]) {
1348 10 av_log(avctx, AV_LOG_WARNING,
1349 "cb_qp_offset_list not tested yet.\n");
1350 }
1351 }
1352 }
1353 76 pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb);
1354 76 pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb);
1355
1356
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 76 if ( pps->log2_sao_offset_scale_luma > FFMAX(sps->bit_depth - 10, 0)
1357
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 76 || pps->log2_sao_offset_scale_chroma > FFMAX(sps->bit_depth_chroma - 10, 0)
1358 )
1359 ✗ return AVERROR_INVALIDDATA;
1360
1361 76 return(0);
1362 }
1363
1364 3227 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1365 HEVCPPS *pps, HEVCSPS *sps)
1366 {
1367 int log2_diff;
1368 int pic_area_in_ctbs;
1369 int i, j, x, y, ctb_addr_rs, tile_id;
1370
1371 // Inferred parameters
1372 3227 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1373 3227 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1374 3227 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1375
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 3227 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1376 ✗ return AVERROR(ENOMEM);
1377
1378
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 3227 if (pps->uniform_spacing_flag) {
1379
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 2695 if (!pps->column_width) {
1380 2319 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1381 2319 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1382 }
1383
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 2695 if (!pps->column_width || !pps->row_height)
1384 ✗ return AVERROR(ENOMEM);
1385
1386
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 5657 for (i = 0; i < pps->num_tile_columns; i++) {
1387 2962 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1388 2962 (i * sps->ctb_width) / pps->num_tile_columns;
1389 }
1390
1391
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 5688 for (i = 0; i < pps->num_tile_rows; i++) {
1392 2993 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1393 2993 (i * sps->ctb_height) / pps->num_tile_rows;
1394 }
1395 }
1396
1397 3227 pps->col_bd[0] = 0;
1398
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 8797 for (i = 0; i < pps->num_tile_columns; i++)
1399 5570 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1400
1401 3227 pps->row_bd[0] = 0;
1402
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 8814 for (i = 0; i < pps->num_tile_rows; i++)
1403 5587 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1404
1405
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 59670 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1406
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 56443 if (i > pps->col_bd[j])
1407 5556 j++;
1408 56443 pps->col_idxX[i] = j;
1409 }
1410
1411 /**
1412 * 6.5
1413 */
1414 3227 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1415
1416 3227 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1417 3227 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1418 3227 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1419 3227 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1420
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 3227 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1421
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 3227 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1422 ✗ return AVERROR(ENOMEM);
1423 }
1424
1425
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 822134 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1426 818907 int tb_x = ctb_addr_rs % sps->ctb_width;
1427 818907 int tb_y = ctb_addr_rs / sps->ctb_width;
1428 818907 int tile_x = 0;
1429 818907 int tile_y = 0;
1430 818907 int val = 0;
1431
1432
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 1389641 for (i = 0; i < pps->num_tile_columns; i++) {
1433
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 1389641 if (tb_x < pps->col_bd[i + 1]) {
1434 818907 tile_x = i;
1435 818907 break;
1436 }
1437 }
1438
1439
1/2
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 1238373 for (i = 0; i < pps->num_tile_rows; i++) {
1440
2/2
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✓ Branch 1 taken 419466 times.
 1238373 if (tb_y < pps->row_bd[i + 1]) {
1441 818907 tile_y = i;
1442 818907 break;
1443 }
1444 }
1445
1446
2/2
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✓ Branch 1 taken 818907 times.
 1389641 for (i = 0; i < tile_x; i++)
1447 570734 val += pps->row_height[tile_y] * pps->column_width[i];
1448
2/2
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✓ Branch 1 taken 818907 times.
 1238373 for (i = 0; i < tile_y; i++)
1449 419466 val += sps->ctb_width * pps->row_height[i];
1450
1451 818907 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1452 818907 tb_x - pps->col_bd[tile_x];
1453
1454 818907 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1455 818907 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1456 }
1457
1458
2/2
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✓ Branch 1 taken 3227 times.
 8814 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1459
2/2
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✓ Branch 1 taken 5587 times.
 21818 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1460
2/2
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✓ Branch 1 taken 16231 times.
 94640 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1461
2/2
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✓ Branch 1 taken 78409 times.
 897316 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1462 818907 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1463
1464 3227 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1465
1/2
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 3227 if (!pps->tile_pos_rs)
1466 ✗ return AVERROR(ENOMEM);
1467
1468
2/2
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✓ Branch 1 taken 3227 times.
 8814 for (j = 0; j < pps->num_tile_rows; j++)
1469
2/2
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✓ Branch 1 taken 5587 times.
 21818 for (i = 0; i < pps->num_tile_columns; i++)
1470 16231 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1471 16231 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1472
1473 3227 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1474 3227 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1475
2/2
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✓ Branch 1 taken 3227 times.
 56774 for (y = 0; y < sps->tb_mask+2; y++) {
1476 53547 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1477 53547 pps->min_tb_addr_zs_tab[y] = -1;
1478 }
1479
2/2
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✓ Branch 1 taken 3227 times.
 53547 for (y = 0; y < sps->tb_mask+1; y++) {
1480
2/2
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✓ Branch 1 taken 50320 times.
 847248 for (x = 0; x < sps->tb_mask+1; x++) {
1481 796928 int tb_x = x >> log2_diff;
1482 796928 int tb_y = y >> log2_diff;
1483 796928 int rs = sps->ctb_width * tb_y + tb_x;
1484 796928 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1485
2/2
✓ Branch 0 taken 3180288 times.
✓ Branch 1 taken 796928 times.
 3977216 for (i = 0; i < log2_diff; i++) {
1486 3180288 int m = 1 << i;
1487
4/4
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✓ Branch 1 taken 1590144 times.
✓ Branch 2 taken 1590144 times.
✓ Branch 3 taken 1590144 times.
 3180288 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1488 }
1489 796928 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1490 }
1491 }
1492
1493 3227 return 0;
1494 }
1495
1496 3231 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1497 HEVCParamSets *ps)
1498 {
1499 3231 HEVCSPS *sps = NULL;
1500 3231 int i, ret = 0;
1501 3231 unsigned int pps_id = 0;
1502 ptrdiff_t nal_size;
1503 unsigned log2_parallel_merge_level_minus2;
1504
1505 AVBufferRef *pps_buf;
1506 3231 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1507
1508
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3231 times.
 3231 if (!pps)
1509 ✗ return AVERROR(ENOMEM);
1510
1511 3231 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1512 hevc_pps_free, NULL, 0);
1513
1/2
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 3231 if (!pps_buf) {
1514 ✗ av_freep(&pps);
1515 ✗ return AVERROR(ENOMEM);
1516 }
1517
1518 3231 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1519
1520 3231 nal_size = gb->buffer_end - gb->buffer;
1521
1/2
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 3231 if (nal_size > sizeof(pps->data)) {
1522 ✗ av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized PPS "
1523 "(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
1524 nal_size, sizeof(pps->data));
1525 ✗ pps->data_size = sizeof(pps->data);
1526 } else {
1527 3231 pps->data_size = nal_size;
1528 }
1529 3231 memcpy(pps->data, gb->buffer, pps->data_size);
1530
1531 // Default values
1532 3231 pps->loop_filter_across_tiles_enabled_flag = 1;
1533 3231 pps->num_tile_columns = 1;
1534 3231 pps->num_tile_rows = 1;
1535 3231 pps->uniform_spacing_flag = 1;
1536 3231 pps->disable_dbf = 0;
1537 3231 pps->beta_offset = 0;
1538 3231 pps->tc_offset = 0;
1539 3231 pps->log2_max_transform_skip_block_size = 2;
1540
1541 // Coded parameters
1542 3231 pps_id = get_ue_golomb_long(gb);
1543
1/2
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 3231 if (pps_id >= HEVC_MAX_PPS_COUNT) {
1544 ✗ av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1545 ✗ ret = AVERROR_INVALIDDATA;
1546 ✗ goto err;
1547 }
1548 3231 pps->sps_id = get_ue_golomb_long(gb);
1549
1/2
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✓ Branch 1 taken 3231 times.
 3231 if (pps->sps_id >= HEVC_MAX_SPS_COUNT) {
1550 ✗ av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1551 ✗ ret = AVERROR_INVALIDDATA;
1552 ✗ goto err;
1553 }
1554
2/2
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✓ Branch 1 taken 3227 times.
 3231 if (!ps->sps_list[pps->sps_id]) {
1555 4 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1556 4 ret = AVERROR_INVALIDDATA;
1557 4 goto err;
1558 }
1559 3227 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1560
1561 3227 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1562 3227 pps->output_flag_present_flag = get_bits1(gb);
1563 3227 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1564
1565 3227 pps->sign_data_hiding_flag = get_bits1(gb);
1566
1567 3227 pps->cabac_init_present_flag = get_bits1(gb);
1568
1569 3227 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1570 3227 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1571
1572 3227 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1573
1574 3227 pps->constrained_intra_pred_flag = get_bits1(gb);
1575 3227 pps->transform_skip_enabled_flag = get_bits1(gb);
1576
1577 3227 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1578 3227 pps->diff_cu_qp_delta_depth = 0;
1579
2/2
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✓ Branch 1 taken 2714 times.
 3227 if (pps->cu_qp_delta_enabled_flag)
1580 513 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1581
1582
1/2
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✗ Branch 1 not taken.
 3227 if (pps->diff_cu_qp_delta_depth < 0 ||
1583
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3227 times.
 3227 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
1584 ✗ av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
1585 ✗ pps->diff_cu_qp_delta_depth);
1586 ✗ ret = AVERROR_INVALIDDATA;
1587 ✗ goto err;
1588 }
1589
1590 3227 pps->cb_qp_offset = get_se_golomb(gb);
1591
2/4
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✓ Branch 3 taken 3227 times.
 3227 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1592 ✗ av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1593 ✗ pps->cb_qp_offset);
1594 ✗ ret = AVERROR_INVALIDDATA;
1595 ✗ goto err;
1596 }
1597 3227 pps->cr_qp_offset = get_se_golomb(gb);
1598
2/4
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✗ Branch 1 not taken.
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✓ Branch 3 taken 3227 times.
 3227 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1599 ✗ av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1600 ✗ pps->cr_qp_offset);
1601 ✗ ret = AVERROR_INVALIDDATA;
1602 ✗ goto err;
1603 }
1604 3227 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1605
1606 3227 pps->weighted_pred_flag = get_bits1(gb);
1607 3227 pps->weighted_bipred_flag = get_bits1(gb);
1608
1609 3227 pps->transquant_bypass_enable_flag = get_bits1(gb);
1610 3227 pps->tiles_enabled_flag = get_bits1(gb);
1611 3227 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1612
1613
2/2
✓ Branch 0 taken 908 times.
✓ Branch 1 taken 2319 times.
 3227 if (pps->tiles_enabled_flag) {
1614 908 int num_tile_columns_minus1 = get_ue_golomb(gb);
1615 908 int num_tile_rows_minus1 = get_ue_golomb(gb);
1616
1617
1/2
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✗ Branch 1 not taken.
 908 if (num_tile_columns_minus1 < 0 ||
1618
1/2
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✓ Branch 1 taken 908 times.
 908 num_tile_columns_minus1 >= sps->ctb_width) {
1619 ✗ av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1620 num_tile_columns_minus1);
1621 ✗ ret = num_tile_columns_minus1 < 0 ? num_tile_columns_minus1 : AVERROR_INVALIDDATA;
1622 ✗ goto err;
1623 }
1624
1/2
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✗ Branch 1 not taken.
 908 if (num_tile_rows_minus1 < 0 ||
1625
1/2
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✓ Branch 1 taken 908 times.
 908 num_tile_rows_minus1 >= sps->ctb_height) {
1626 ✗ av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1627 num_tile_rows_minus1);
1628 ✗ ret = num_tile_rows_minus1 < 0 ? num_tile_rows_minus1 : AVERROR_INVALIDDATA;
1629 ✗ goto err;
1630 }
1631 908 pps->num_tile_columns = num_tile_columns_minus1 + 1;
1632 908 pps->num_tile_rows = num_tile_rows_minus1 + 1;
1633
1634 908 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1635 908 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1636
2/4
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✗ Branch 1 not taken.
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✓ Branch 3 taken 908 times.
 908 if (!pps->column_width || !pps->row_height) {
1637 ✗ ret = AVERROR(ENOMEM);
1638 ✗ goto err;
1639 }
1640
1641 908 pps->uniform_spacing_flag = get_bits1(gb);
1642
2/2
✓ Branch 0 taken 532 times.
✓ Branch 1 taken 376 times.
 908 if (!pps->uniform_spacing_flag) {
1643 532 uint64_t sum = 0;
1644
2/2
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✓ Branch 1 taken 532 times.
 2608 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1645 2076 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1646 2076 sum += pps->column_width[i];
1647 }
1648
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 532 times.
 532 if (sum >= sps->ctb_width) {
1649 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1650 ✗ ret = AVERROR_INVALIDDATA;
1651 ✗ goto err;
1652 }
1653 532 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1654
1655 532 sum = 0;
1656
2/2
✓ Branch 0 taken 2062 times.
✓ Branch 1 taken 532 times.
 2594 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1657 2062 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1658 2062 sum += pps->row_height[i];
1659 }
1660
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 532 times.
 532 if (sum >= sps->ctb_height) {
1661 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1662 ✗ ret = AVERROR_INVALIDDATA;
1663 ✗ goto err;
1664 }
1665 532 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1666 }
1667 908 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1668 }
1669
1670 3227 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1671
1672 3227 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1673
2/2
✓ Branch 0 taken 1015 times.
✓ Branch 1 taken 2212 times.
 3227 if (pps->deblocking_filter_control_present_flag) {
1674 1015 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1675 1015 pps->disable_dbf = get_bits1(gb);
1676
2/2
✓ Branch 0 taken 873 times.
✓ Branch 1 taken 142 times.
 1015 if (!pps->disable_dbf) {
1677 873 int beta_offset_div2 = get_se_golomb(gb);
1678 873 int tc_offset_div2 = get_se_golomb(gb) ;
1679
2/4
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✗ Branch 1 not taken.
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✓ Branch 3 taken 873 times.
 873 if (beta_offset_div2 < -6 || beta_offset_div2 > 6) {
1680 ✗ av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1681 beta_offset_div2);
1682 ✗ ret = AVERROR_INVALIDDATA;
1683 ✗ goto err;
1684 }
1685
2/4
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✗ Branch 1 not taken.
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✓ Branch 3 taken 873 times.
 873 if (tc_offset_div2 < -6 || tc_offset_div2 > 6) {
1686 ✗ av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1687 tc_offset_div2);
1688 ✗ ret = AVERROR_INVALIDDATA;
1689 ✗ goto err;
1690 }
1691 873 pps->beta_offset = 2 * beta_offset_div2;
1692 873 pps->tc_offset = 2 * tc_offset_div2;
1693 }
1694 }
1695
1696 3227 pps->scaling_list_data_present_flag = get_bits1(gb);
1697
2/2
✓ Branch 0 taken 469 times.
✓ Branch 1 taken 2758 times.
 3227 if (pps->scaling_list_data_present_flag) {
1698 469 set_default_scaling_list_data(&pps->scaling_list);
1699 469 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
1700
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 469 times.
 469 if (ret < 0)
1701 ✗ goto err;
1702 }
1703 3227 pps->lists_modification_present_flag = get_bits1(gb);
1704 3227 log2_parallel_merge_level_minus2 = get_ue_golomb_long(gb);
1705
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3227 times.
 3227 if (log2_parallel_merge_level_minus2 > sps->log2_ctb_size) {
1706 ✗ av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1707 log2_parallel_merge_level_minus2);
1708 ✗ ret = AVERROR_INVALIDDATA;
1709 ✗ goto err;
1710 }
1711 3227 pps->log2_parallel_merge_level = log2_parallel_merge_level_minus2 + 2;
1712
1713 3227 pps->slice_header_extension_present_flag = get_bits1(gb);
1714
1715
2/2
✓ Branch 1 taken 91 times.
✓ Branch 2 taken 3136 times.
 3227 if (get_bits1(gb)) { // pps_extension_present_flag
1716 91 pps->pps_range_extensions_flag = get_bits1(gb);
1717 91 skip_bits(gb, 7); // pps_extension_7bits
1718
3/4
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✗ Branch 3 not taken.
 91 if (sps->ptl.general_ptl.profile_idc == FF_PROFILE_HEVC_REXT && pps->pps_range_extensions_flag) {
1719
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 76 times.
 76 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
1720 ✗ goto err;
1721 }
1722 }
1723
1724 3227 ret = setup_pps(avctx, gb, pps, sps);
1725
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 3227 times.
 3227 if (ret < 0)
1726 ✗ goto err;
1727
1728
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 3227 times.
 3227 if (get_bits_left(gb) < 0) {
1729 ✗ av_log(avctx, AV_LOG_ERROR,
1730 ✗ "Overread PPS by %d bits\n", -get_bits_left(gb));
1731 ✗ goto err;
1732 }
1733
1734 3227 remove_pps(ps, pps_id);
1735 3227 ps->pps_list[pps_id] = pps_buf;
1736
1737 3227 return 0;
1738
1739 4 err:
1740 4 av_buffer_unref(&pps_buf);
1741 4 return ret;
1742 }
1743
1744 594 void ff_hevc_ps_uninit(HEVCParamSets *ps)
1745 {
1746 int i;
1747
1748
2/2
✓ Branch 0 taken 9504 times.
✓ Branch 1 taken 594 times.
 10098 for (i = 0; i < FF_ARRAY_ELEMS(ps->vps_list); i++)
1749 9504 av_buffer_unref(&ps->vps_list[i]);
1750
2/2
✓ Branch 0 taken 9504 times.
✓ Branch 1 taken 594 times.
 10098 for (i = 0; i < FF_ARRAY_ELEMS(ps->sps_list); i++)
1751 9504 av_buffer_unref(&ps->sps_list[i]);
1752
2/2
✓ Branch 0 taken 38016 times.
✓ Branch 1 taken 594 times.
 38610 for (i = 0; i < FF_ARRAY_ELEMS(ps->pps_list); i++)
1753 38016 av_buffer_unref(&ps->pps_list[i]);
1754
1755 594 ps->sps = NULL;
1756 594 ps->pps = NULL;
1757 594 ps->vps = NULL;
1758 594 }
1759
1760 30272 int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
1761 {
1762 30272 int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
1763 30272 int prev_poc_lsb = pocTid0 % max_poc_lsb;
1764 30272 int prev_poc_msb = pocTid0 - prev_poc_lsb;
1765 int poc_msb;
1766
1767
4/4
✓ Branch 0 taken 10270 times.
✓ Branch 1 taken 20002 times.
✓ Branch 2 taken 40 times.
✓ Branch 3 taken 10230 times.
 30272 if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
1768 40 poc_msb = prev_poc_msb + max_poc_lsb;
1769
4/4
✓ Branch 0 taken 14410 times.
✓ Branch 1 taken 15822 times.
✓ Branch 2 taken 252 times.
✓ Branch 3 taken 14158 times.
 30232 else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
1770 252 poc_msb = prev_poc_msb - max_poc_lsb;
1771 else
1772 29980 poc_msb = prev_poc_msb;
1773
1774 // For BLA picture types, POCmsb is set to 0.
1775
4/4
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✓ Branch 3 taken 6 times.
 30272 if (nal_unit_type == HEVC_NAL_BLA_W_LP ||
1776
2/2
✓ Branch 0 taken 3 times.
✓ Branch 1 taken 30248 times.
 30251 nal_unit_type == HEVC_NAL_BLA_W_RADL ||
1777 nal_unit_type == HEVC_NAL_BLA_N_LP)
1778 24 poc_msb = 0;
1779
1780 30272 return poc_msb + poc_lsb;
1781 }
1782