FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/hevc/ps.c
Date: 2024-09-07 18:49:03
Exec Total Coverage
Lines: 918 1295 70.9%
Functions: 28 29 96.6%
Branches: 546 873 62.5%
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 "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
65 658 static void remove_sps(HEVCParamSets *s, int id)
66 {
67 int i;
68
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 658 if (s->sps_list[id]) {
69 /* drop all PPS that depend on this SPS */
70
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 715 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
71
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 704 if (s->pps_list[i] && s->pps_list[i]->sps_id == id)
72 11 ff_refstruct_unref(&s->pps_list[i]);
73
74 11 ff_refstruct_unref(&s->sps_list[id]);
75 }
76 658 }
77
78 645 static void remove_vps(HEVCParamSets *s, int id)
79 {
80 int i;
81
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 645 if (s->vps_list[id]) {
82
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 51 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
83
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 48 if (s->sps_list[i] && s->sps_list[i]->vps_id == id)
84 3 remove_sps(s, i);
85 3 ff_refstruct_unref(&s->vps_list[id]);
86 }
87 645 }
88
89 12606 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 12606 int k0 = 0;
94 12606 int k = 0;
95 int i;
96
97 12606 rps->used = 0;
98 12606 rps->rps_predict = 0;
99
100
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 12606 if (rps != sps->st_rps && sps->nb_st_rps)
101 11364 rps->rps_predict = get_bits1(gb);
102
103
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 12606 if (rps->rps_predict) {
104 const ShortTermRPS *rps_ridx;
105 7566 uint8_t used[32] = { 0 };
106 int delta_rps;
107
108
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 7566 if (is_slice_header) {
109 619 rps->delta_idx = get_ue_golomb_long(gb) + 1;
110
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 619 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 }
116 619 rps_ridx = &sps->st_rps[sps->nb_st_rps - rps->delta_idx];
117 619 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
118 } else
119 6947 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
120
121 7566 rps->delta_rps_sign = get_bits1(gb);
122 7566 rps->abs_delta_rps = get_ue_golomb_long(gb) + 1;
123
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 7566 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 7566 delta_rps = (1 - (rps->delta_rps_sign << 1)) * rps->abs_delta_rps;
130
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 40376 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
131 32810 used[k] = get_bits1(gb);
132
133 32810 rps->use_delta = 0;
134
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 32810 if (!used[k])
135 6497 rps->use_delta = get_bits1(gb);
136
137
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 32810 if (used[k] || rps->use_delta) {
138
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 26363 if (i < rps_ridx->num_delta_pocs)
139 20769 delta_poc = delta_rps + rps_ridx->delta_poc[i];
140 else
141 5594 delta_poc = delta_rps;
142 26363 rps->delta_poc[k] = delta_poc;
143
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 26363 if (delta_poc < 0)
144 18304 k0++;
145 26363 k++;
146 }
147 }
148
149
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 7566 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 7566 rps->num_delta_pocs = k;
156 7566 rps->num_negative_pics = k0;
157 // sort in increasing order (smallest first)
158
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 7566 if (rps->num_delta_pocs != 0) {
159 int u, tmp;
160
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 26363 for (i = 1; i < rps->num_delta_pocs; i++) {
161 18797 delta_poc = rps->delta_poc[i];
162 18797 u = used[i];
163
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 53823 for (k = i - 1; k >= 0; k--) {
164 35026 tmp = rps->delta_poc[k];
165
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 35026 if (delta_poc < tmp) {
166 11215 rps->delta_poc[k + 1] = tmp;
167 11215 used[k + 1] = used[k];
168 11215 rps->delta_poc[k] = delta_poc;
169 11215 used[k] = u;
170 }
171 }
172 }
173 }
174
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 7566 if ((rps->num_negative_pics >> 1) != 0) {
175 int u;
176 5751 k = rps->num_negative_pics - 1;
177 // flip the negative values to largest first
178
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 13311 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
179 7560 delta_poc = rps->delta_poc[i];
180 7560 u = used[i];
181 7560 rps->delta_poc[i] = rps->delta_poc[k];
182 7560 used[i] = used[k];
183 7560 rps->delta_poc[k] = delta_poc;
184 7560 used[k] = u;
185 7560 k--;
186 }
187 }
188
189
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 249678 for (unsigned i = 0; i < FF_ARRAY_ELEMS(used); i++)
190 242112 rps->used |= (uint32_t)used[i] << i;
191 } else {
192 unsigned int nb_positive_pics;
193
194 5040 rps->num_negative_pics = get_ue_golomb_long(gb);
195 5040 nb_positive_pics = get_ue_golomb_long(gb);
196
197
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 5040 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 5040 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
204
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 5040 if (rps->num_delta_pocs) {
205 4668 int prev = 0;
206
207
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 18661 for (i = 0; i < rps->num_negative_pics; i++) {
208 13993 delta_poc = get_ue_golomb_long(gb) + 1;
209
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 13993 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 13993 prev -= delta_poc;
216 13993 rps->delta_poc[i] = prev;
217 13993 rps->used |= get_bits1(gb) * (1 << i);
218 }
219 4668 prev = 0;
220
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 5885 for (i = 0; i < nb_positive_pics; i++) {
221 1217 delta_poc = get_ue_golomb_long(gb) + 1;
222
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 1217 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 1217 prev += delta_poc;
229 1217 rps->delta_poc[rps->num_negative_pics + i] = prev;
230 1217 rps->used |= get_bits1(gb) * (1 << (rps->num_negative_pics + i));
231 }
232 }
233 }
234 12606 return 0;
235 }
236
237
238 1773 static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
239 PTLCommon *ptl)
240 {
241 1773 const char *profile_name = NULL;
242 int i;
243
244
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 1773 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 43 + 1)
245 ✗ return -1;
246
247 1773 ptl->profile_space = get_bits(gb, 2);
248 1773 ptl->tier_flag = get_bits1(gb);
249 1773 ptl->profile_idc = get_bits(gb, 5);
250
251 #if !CONFIG_SMALL
252
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 2523 for (int i = 0; ff_hevc_profiles[i].profile != AV_PROFILE_UNKNOWN; i++)
253
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 2483 if (ff_hevc_profiles[i].profile == ptl->profile_idc) {
254 1733 profile_name = ff_hevc_profiles[i].name;
255 1733 break;
256 }
257 #endif
258
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 1773 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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 58509 for (i = 0; i < 32; i++) {
262 56736 ptl->profile_compatibility_flag[i] = get_bits1(gb);
263
264
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 56736 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
265 32 ptl->profile_idc = i;
266 }
267 1773 ptl->progressive_source_flag = get_bits1(gb);
268 1773 ptl->interlaced_source_flag = get_bits1(gb);
269 1773 ptl->non_packed_constraint_flag = get_bits1(gb);
270 1773 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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 1773 if (check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(6) ||
276
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 1661 check_profile_idc(7) || check_profile_idc(8) || check_profile_idc(9) ||
277
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 1661 check_profile_idc(10)) {
278
279 112 ptl->max_12bit_constraint_flag = get_bits1(gb);
280 112 ptl->max_10bit_constraint_flag = get_bits1(gb);
281 112 ptl->max_8bit_constraint_flag = get_bits1(gb);
282 112 ptl->max_422chroma_constraint_flag = get_bits1(gb);
283 112 ptl->max_420chroma_constraint_flag = get_bits1(gb);
284 112 ptl->max_monochrome_constraint_flag = get_bits1(gb);
285 112 ptl->intra_constraint_flag = get_bits1(gb);
286 112 ptl->one_picture_only_constraint_flag = get_bits1(gb);
287 112 ptl->lower_bit_rate_constraint_flag = get_bits1(gb);
288
289
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 112 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 {
293 104 skip_bits_long(gb, 34); // XXX_reserved_zero_34bits[0..33]
294 }
295
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 1661 } else if (check_profile_idc(2)) {
296 1410 skip_bits(gb, 7);
297 1410 ptl->one_picture_only_constraint_flag = get_bits1(gb);
298 1410 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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 1773 if (check_profile_idc(1) || check_profile_idc(2) || check_profile_idc(3) ||
304
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 112 check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(9))
305 1773 ptl->inbld_flag = get_bits1(gb);
306 else
307 ✗ skip_bits1(gb);
308 #undef check_profile_idc
309
310 1773 return 0;
311 }
312
313 1731 static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
314 PTL *ptl, int max_num_sub_layers)
315 {
316 int i;
317
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 3462 if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 ||
318
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 1731 get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
319 ✗ av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
320 ✗ return -1;
321 }
322
323 1731 ptl->general_ptl.level_idc = get_bits(gb, 8);
324
325
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 2034 for (i = 0; i < max_num_sub_layers - 1; i++) {
326 303 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
327 303 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
328 }
329
330
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 1731 if (max_num_sub_layers - 1> 0)
331
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 1074 for (i = max_num_sub_layers - 1; i < 8; i++)
332 921 skip_bits(gb, 2); // reserved_zero_2bits[i]
333
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 2034 for (i = 0; i < max_num_sub_layers - 1; i++) {
334
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 345 if (ptl->sub_layer_profile_present_flag[i] &&
335 42 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
336 ✗ av_log(avctx, AV_LOG_ERROR,
337 "PTL information for sublayer %i too short\n", i);
338 ✗ return -1;
339 }
340
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 303 if (ptl->sub_layer_level_present_flag[i]) {
341
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 42 if (get_bits_left(gb) < 8) {
342 ✗ av_log(avctx, AV_LOG_ERROR,
343 "Not enough data for sublayer %i level_idc\n", i);
344 ✗ return -1;
345 } else
346 42 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
347 }
348 }
349
350 1731 return 0;
351 }
352
353 101 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
354 HEVCSublayerHdrParams *par, int subpic_params_present)
355 {
356 int i;
357
358
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 202 for (i = 0; i < nb_cpb; i++) {
359 101 par->bit_rate_value_minus1[i] = get_ue_golomb_long(gb);
360 101 par->cpb_size_value_minus1[i] = get_ue_golomb_long(gb);
361
362
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 101 if (subpic_params_present) {
363 34 par->cpb_size_du_value_minus1[i] = get_ue_golomb_long(gb);
364 34 par->bit_rate_du_value_minus1[i] = get_ue_golomb_long(gb);
365 }
366
367 101 par->cbr_flag |= get_bits1(gb) << i;
368 }
369 101 }
370
371 53 static int decode_hrd(GetBitContext *gb, int common_inf_present,
372 HEVCHdrParams *hdr, int max_sublayers)
373 {
374
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 53 if (common_inf_present) {
375 53 hdr->nal_hrd_parameters_present_flag = get_bits1(gb);
376 53 hdr->vcl_hrd_parameters_present_flag = get_bits1(gb);
377
378
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 53 if (hdr->nal_hrd_parameters_present_flag ||
379 ✗ hdr->vcl_hrd_parameters_present_flag) {
380 53 hdr->sub_pic_hrd_params_present_flag = get_bits1(gb);
381
382
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 53 if (hdr->sub_pic_hrd_params_present_flag) {
383 17 hdr->tick_divisor_minus2 = get_bits(gb, 8);
384 17 hdr->du_cpb_removal_delay_increment_length_minus1 = get_bits(gb, 5);
385 17 hdr->sub_pic_cpb_params_in_pic_timing_sei_flag = get_bits1(gb);
386 17 hdr->dpb_output_delay_du_length_minus1 = get_bits(gb, 5);
387 }
388
389 53 hdr->bit_rate_scale = get_bits(gb, 4);
390 53 hdr->cpb_size_scale = get_bits(gb, 4);
391
392
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 53 if (hdr->sub_pic_hrd_params_present_flag)
393 17 hdr->cpb_size_du_scale = get_bits(gb, 4);
394
395 53 hdr->initial_cpb_removal_delay_length_minus1 = get_bits(gb, 5);
396 53 hdr->au_cpb_removal_delay_length_minus1 = get_bits(gb, 5);
397 53 hdr->dpb_output_delay_length_minus1 = get_bits(gb, 5);
398 }
399 }
400
401
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 106 for (int i = 0; i < max_sublayers; i++) {
402 53 unsigned fixed_pic_rate_general_flag = get_bits1(gb);
403 53 unsigned fixed_pic_rate_within_cvs_flag = 0;
404 53 unsigned low_delay_hrd_flag = 0;
405 53 hdr->flags.fixed_pic_rate_general_flag |= fixed_pic_rate_general_flag << i;
406
407
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 53 if (!fixed_pic_rate_general_flag)
408 23 fixed_pic_rate_within_cvs_flag = get_bits1(gb);
409 53 hdr->flags.fixed_pic_rate_within_cvs_flag |= fixed_pic_rate_within_cvs_flag << i;
410
411
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 53 if (fixed_pic_rate_within_cvs_flag || fixed_pic_rate_general_flag)
412 30 hdr->elemental_duration_in_tc_minus1[i] = get_ue_golomb_long(gb);
413 else
414 23 low_delay_hrd_flag = get_bits1(gb);
415 53 hdr->flags.low_delay_hrd_flag |= low_delay_hrd_flag << i;
416
417
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 53 if (!low_delay_hrd_flag) {
418 53 unsigned cpb_cnt_minus1 = get_ue_golomb_long(gb);
419
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 53 if (cpb_cnt_minus1 > 31) {
420 ✗ av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n",
421 cpb_cnt_minus1);
422 ✗ return AVERROR_INVALIDDATA;
423 }
424 53 hdr->cpb_cnt_minus1[i] = cpb_cnt_minus1;
425 }
426
427
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 53 if (hdr->nal_hrd_parameters_present_flag)
428 53 decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i]+1, &hdr->nal_params[i],
429 53 hdr->sub_pic_hrd_params_present_flag);
430
431
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 53 if (hdr->vcl_hrd_parameters_present_flag)
432 48 decode_sublayer_hrd(gb, hdr->cpb_cnt_minus1[i]+1, &hdr->vcl_params[i],
433 48 hdr->sub_pic_hrd_params_present_flag);
434 }
435
436 53 return 0;
437 }
438
439 645 static void hevc_vps_free(FFRefStructOpaque opaque, void *obj)
440 {
441 645 HEVCVPS *vps = obj;
442
443 645 av_freep(&vps->hdr);
444 645 av_freep(&vps->data);
445 645 }
446
447 1093 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
448 HEVCParamSets *ps)
449 {
450 int i,j;
451 1093 int vps_id = get_bits(gb, 4);
452 1093 ptrdiff_t nal_size = gb->buffer_end - gb->buffer;
453 1093 int ret = AVERROR_INVALIDDATA;
454 HEVCVPS *vps;
455
456
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 1093 if (ps->vps_list[vps_id]) {
457 451 const HEVCVPS *vps1 = ps->vps_list[vps_id];
458
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 451 if (vps1->data_size == nal_size &&
459
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 451 !memcmp(vps1->data, gb->buffer, vps1->data_size))
460 448 return 0;
461 }
462
463 645 vps = ff_refstruct_alloc_ext(sizeof(*vps), 0, NULL, hevc_vps_free);
464
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 645 if (!vps)
465 ✗ return AVERROR(ENOMEM);
466
467 645 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
468
469 645 vps->data_size = nal_size;
470 645 vps->data = av_memdup(gb->buffer, nal_size);
471
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 645 if (!vps->data) {
472 ✗ ret = AVERROR(ENOMEM);
473 ✗ goto err;
474 }
475 645 vps->vps_id = vps_id;
476
477
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 645 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
478 ✗ av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
479 ✗ goto err;
480 }
481
482 645 vps->vps_max_layers = get_bits(gb, 6) + 1;
483 645 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
484 645 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
485
486
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 645 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
487 ✗ av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
488 ✗ goto err;
489 }
490
491
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 645 if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) {
492 ✗ av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
493 ✗ vps->vps_max_sub_layers);
494 ✗ goto err;
495 }
496
497
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 645 if (parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers) < 0)
498 ✗ goto err;
499
500 645 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
501
502
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 645 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
503
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 1348 for (; i < vps->vps_max_sub_layers; i++) {
504 703 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
505 703 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
506 703 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
507
508
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 703 if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
509 ✗ av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
510 ✗ vps->vps_max_dec_pic_buffering[i] - 1);
511 ✗ goto err;
512 }
513
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 703 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
514 ✗ av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
515 ✗ vps->vps_num_reorder_pics[i]);
516 ✗ if (avctx->err_recognition & AV_EF_EXPLODE)
517 ✗ goto err;
518 }
519 }
520
521 645 vps->vps_max_layer_id = get_bits(gb, 6);
522 645 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
523
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 645 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
524
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 645 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
525 ✗ av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
526 ✗ goto err;
527 }
528
529
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 647 for (i = 1; i < vps->vps_num_layer_sets; i++)
530
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 6 for (j = 0; j <= vps->vps_max_layer_id; j++)
531 4 skip_bits(gb, 1); // layer_id_included_flag[i][j]
532
533 645 vps->vps_timing_info_present_flag = get_bits1(gb);
534
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 645 if (vps->vps_timing_info_present_flag) {
535 22 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
536 22 vps->vps_time_scale = get_bits_long(gb, 32);
537 22 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
538
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 22 if (vps->vps_poc_proportional_to_timing_flag)
539 22 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
540 22 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
541
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 22 if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) {
542 ✗ av_log(avctx, AV_LOG_ERROR,
543 ✗ "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
544 ✗ goto err;
545 }
546
547
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 22 if (vps->vps_num_hrd_parameters) {
548 3 vps->hdr = av_calloc(vps->vps_num_hrd_parameters, sizeof(*vps->hdr));
549
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 3 if (!vps->hdr)
550 ✗ goto err;
551 }
552
553
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 25 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
554 3 int common_inf_present = 1;
555
556 3 get_ue_golomb_long(gb); // hrd_layer_set_idx
557
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 3 if (i)
558 ✗ common_inf_present = get_bits1(gb);
559 3 decode_hrd(gb, common_inf_present, &vps->hdr[i],
560 3 vps->vps_max_sub_layers);
561 }
562 }
563 645 get_bits1(gb); /* vps_extension_flag */
564
565
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 645 if (get_bits_left(gb) < 0) {
566 ✗ av_log(avctx, AV_LOG_ERROR,
567 ✗ "Overread VPS by %d bits\n", -get_bits_left(gb));
568 ✗ if (ps->vps_list[vps_id])
569 ✗ goto err;
570 }
571
572 645 remove_vps(ps, vps_id);
573 645 ps->vps_list[vps_id] = vps;
574
575 645 return 0;
576
577 ✗ err:
578 ✗ ff_refstruct_unref(&vps);
579 ✗ return ret;
580 }
581
582 286 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
583 int apply_defdispwin, HEVCSPS *sps)
584 {
585 286 VUI backup_vui, *vui = &sps->vui;
586 GetBitContext backup;
587 286 int alt = 0;
588
589 286 ff_h2645_decode_common_vui_params(gb, &sps->vui.common, avctx);
590
591
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 286 if (vui->common.video_signal_type_present_flag) {
592
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 67 if (vui->common.video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
593 5 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
594
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 67 if (vui->common.colour_description_present_flag) {
595
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 62 if (vui->common.matrix_coeffs == AVCOL_SPC_RGB) {
596 ✗ switch (sps->pix_fmt) {
597 ✗ case AV_PIX_FMT_YUV444P:
598 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP;
599 ✗ break;
600 ✗ case AV_PIX_FMT_YUV444P10:
601 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP10;
602 ✗ break;
603 ✗ case AV_PIX_FMT_YUV444P12:
604 ✗ sps->pix_fmt = AV_PIX_FMT_GBRP12;
605 ✗ break;
606 }
607 }
608 }
609 }
610
611 286 vui->neutra_chroma_indication_flag = get_bits1(gb);
612 286 vui->field_seq_flag = get_bits1(gb);
613 286 vui->frame_field_info_present_flag = get_bits1(gb);
614
615 // Backup context in case an alternate header is detected
616 286 memcpy(&backup, gb, sizeof(backup));
617 286 memcpy(&backup_vui, vui, sizeof(backup_vui));
618
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 286 if (get_bits_left(gb) >= 68 && show_bits(gb, 21) == 0x100000) {
619 ✗ vui->default_display_window_flag = 0;
620 ✗ av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
621 } else
622 286 vui->default_display_window_flag = get_bits1(gb);
623
624
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 286 if (vui->default_display_window_flag) {
625 114 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
626 114 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
627 114 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
628 114 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
629 114 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
630 114 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
631
632
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 114 if (apply_defdispwin &&
633
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 54 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
634 ✗ av_log(avctx, AV_LOG_DEBUG,
635 "discarding vui default display window, "
636 "original values are l:%u r:%u t:%u b:%u\n",
637 vui->def_disp_win.left_offset,
638 vui->def_disp_win.right_offset,
639 vui->def_disp_win.top_offset,
640 vui->def_disp_win.bottom_offset);
641
642 ✗ vui->def_disp_win.left_offset =
643 ✗ vui->def_disp_win.right_offset =
644 ✗ vui->def_disp_win.top_offset =
645 ✗ vui->def_disp_win.bottom_offset = 0;
646 }
647 }
648
649 286 timing_info:
650 286 vui->vui_timing_info_present_flag = get_bits1(gb);
651
652
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 286 if (vui->vui_timing_info_present_flag) {
653
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 105 if( get_bits_left(gb) < 66 && !alt) {
654 // The alternate syntax seem to have timing info located
655 // at where def_disp_win is normally located
656 ✗ av_log(avctx, AV_LOG_WARNING,
657 "Strange VUI timing information, retrying...\n");
658 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
659 ✗ memcpy(gb, &backup, sizeof(backup));
660 ✗ alt = 1;
661 ✗ goto timing_info;
662 }
663 105 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
664 105 vui->vui_time_scale = get_bits_long(gb, 32);
665
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 105 if (alt) {
666 ✗ av_log(avctx, AV_LOG_INFO, "Retry got %"PRIu32"/%"PRIu32" fps\n",
667 vui->vui_time_scale, vui->vui_num_units_in_tick);
668 }
669 105 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
670
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 105 if (vui->vui_poc_proportional_to_timing_flag)
671 38 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
672 105 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
673
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 105 if (vui->vui_hrd_parameters_present_flag)
674 50 decode_hrd(gb, 1, &sps->hdr, sps->max_sub_layers);
675 }
676
677 286 vui->bitstream_restriction_flag = get_bits1(gb);
678
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 286 if (vui->bitstream_restriction_flag) {
679
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 116 if (get_bits_left(gb) < 8 && !alt) {
680 ✗ av_log(avctx, AV_LOG_WARNING,
681 "Strange VUI bitstream restriction information, retrying"
682 " from timing information...\n");
683 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
684 ✗ memcpy(gb, &backup, sizeof(backup));
685 ✗ alt = 1;
686 ✗ goto timing_info;
687 }
688 116 vui->tiles_fixed_structure_flag = get_bits1(gb);
689 116 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
690 116 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
691 116 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
692 116 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
693 116 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
694 116 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
695 116 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
696 }
697
698
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 286 if (get_bits_left(gb) < 1 && !alt) {
699 // XXX: Alternate syntax when sps_range_extension_flag != 0?
700 ✗ av_log(avctx, AV_LOG_WARNING,
701 "Overread in VUI, retrying from timing information...\n");
702 ✗ memcpy(vui, &backup_vui, sizeof(backup_vui));
703 ✗ memcpy(gb, &backup, sizeof(backup));
704 ✗ alt = 1;
705 ✗ goto timing_info;
706 }
707 286 }
708
709 162 static void set_default_scaling_list_data(ScalingList *sl)
710 {
711 int matrixId;
712
713
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 1134 for (matrixId = 0; matrixId < 6; matrixId++) {
714 // 4x4 default is 16
715 972 memset(sl->sl[0][matrixId], 16, 16);
716 972 sl->sl_dc[0][matrixId] = 16; // default for 16x16
717 972 sl->sl_dc[1][matrixId] = 16; // default for 32x32
718 }
719 162 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
720 162 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
721 162 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
722 162 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
723 162 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
724 162 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
725 162 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
726 162 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
727 162 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
728 162 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
729 162 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
730 162 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
731 162 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
732 162 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
733 162 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
734 162 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
735 162 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
736 162 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
737 162 }
738
739 141 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx,
740 ScalingList *sl, const HEVCSPS *sps)
741 {
742 uint8_t scaling_list_pred_mode_flag;
743 uint8_t scaling_list_dc_coef[2][6];
744 int size_id, matrix_id, pos;
745 int i;
746
747
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 705 for (size_id = 0; size_id < 4; size_id++)
748
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 3384 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
749 2820 scaling_list_pred_mode_flag = get_bits1(gb);
750
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 2820 if (!scaling_list_pred_mode_flag) {
751 759 unsigned int delta = get_ue_golomb_long(gb);
752 /* Only need to handle non-zero delta. Zero means default,
753 * which should already be in the arrays. */
754
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 759 if (delta) {
755 // Copy from previous array.
756
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 633 delta *= (size_id == 3) ? 3 : 1;
757
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 633 if (matrix_id < delta) {
758 ✗ av_log(avctx, AV_LOG_ERROR,
759 "Invalid delta in scaling list data: %d.\n", delta);
760 ✗ return AVERROR_INVALIDDATA;
761 }
762
763
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 633 memcpy(sl->sl[size_id][matrix_id],
764 633 sl->sl[size_id][matrix_id - delta],
765 size_id > 0 ? 64 : 16);
766
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 633 if (size_id > 1)
767 127 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
768 }
769 } else {
770 int next_coef, coef_num;
771 int32_t scaling_list_delta_coef;
772
773 2061 next_coef = 8;
774 2061 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
775
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 2061 if (size_id > 1) {
776 959 int scaling_list_coeff_minus8 = get_se_golomb(gb);
777
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 959 if (scaling_list_coeff_minus8 < -7 ||
778 scaling_list_coeff_minus8 > 247)
779 ✗ return AVERROR_INVALIDDATA;
780 959 scaling_list_dc_coef[size_id - 2][matrix_id] = scaling_list_coeff_minus8 + 8;
781 959 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
782 959 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
783 }
784
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 105549 for (i = 0; i < coef_num; i++) {
785
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 103488 if (size_id == 0)
786 9472 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
787 9472 ff_hevc_diag_scan4x4_x[i];
788 else
789 94016 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
790 94016 ff_hevc_diag_scan8x8_x[i];
791
792 103488 scaling_list_delta_coef = get_se_golomb(gb);
793 103488 next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256;
794 103488 sl->sl[size_id][matrix_id][pos] = next_coef;
795 }
796 }
797 }
798
799
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 141 if (sps->chroma_format_idc == 3) {
800
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 2795 for (i = 0; i < 64; i++) {
801 2752 sl->sl[3][1][i] = sl->sl[2][1][i];
802 2752 sl->sl[3][2][i] = sl->sl[2][2][i];
803 2752 sl->sl[3][4][i] = sl->sl[2][4][i];
804 2752 sl->sl[3][5][i] = sl->sl[2][5][i];
805 }
806 43 sl->sl_dc[1][1] = sl->sl_dc[0][1];
807 43 sl->sl_dc[1][2] = sl->sl_dc[0][2];
808 43 sl->sl_dc[1][4] = sl->sl_dc[0][4];
809 43 sl->sl_dc[1][5] = sl->sl_dc[0][5];
810 }
811
812
813 141 return 0;
814 }
815
816 1086 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
817 {
818 const AVPixFmtDescriptor *desc;
819
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 1086 switch (sps->bit_depth) {
820 926 case 8:
821
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 926 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
822
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 926 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
823
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 926 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
824
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 926 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
825 926 break;
826 ✗ case 9:
827 ✗ if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY9;
828 ✗ if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
829 ✗ if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
830 ✗ if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
831 ✗ break;
832 137 case 10:
833
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 137 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10;
834
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 137 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
835
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 137 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
836
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 137 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
837 137 break;
838 23 case 12:
839
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 23 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12;
840
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 23 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
841
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 23 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
842
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 23 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
843 23 break;
844 ✗ default:
845 ✗ av_log(avctx, AV_LOG_ERROR,
846 "The following bit-depths are currently specified: 8, 9, 10 and 12 bits, "
847 "chroma_format_idc is %d, depth is %d\n",
848 sps->chroma_format_idc, sps->bit_depth);
849 ✗ return AVERROR_INVALIDDATA;
850 }
851
852 1086 desc = av_pix_fmt_desc_get(sps->pix_fmt);
853
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 1086 if (!desc)
854 ✗ return AVERROR(EINVAL);
855
856 1086 sps->hshift[0] = sps->vshift[0] = 0;
857 1086 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
858 1086 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
859
860 1086 sps->pixel_shift = sps->bit_depth > 8;
861
862 1086 return 0;
863 }
864
865 1086 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
866 int apply_defdispwin, const HEVCVPS * const *vps_list,
867 AVCodecContext *avctx)
868 {
869 HEVCWindow *ow;
870 1086 int ret = 0;
871 int bit_depth_chroma, start, num_comps;
872 int i;
873
874 // Coded parameters
875
876 1086 sps->vps_id = get_bits(gb, 4);
877
878
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 1086 if (vps_list) {
879
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 1086 if (!vps_list[sps->vps_id]) {
880 ✗ av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
881 sps->vps_id);
882 ✗ return AVERROR_INVALIDDATA;
883 }
884 1086 sps->vps = ff_refstruct_ref_c(vps_list[sps->vps_id]);
885 }
886
887 1086 sps->max_sub_layers = get_bits(gb, 3) + 1;
888
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 1086 if (sps->max_sub_layers > HEVC_MAX_SUB_LAYERS) {
889 ✗ av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
890 sps->max_sub_layers);
891 ✗ return AVERROR_INVALIDDATA;
892 }
893
894 1086 sps->temporal_id_nesting = get_bits(gb, 1);
895
896
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 1086 if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0)
897 ✗ return ret;
898
899 1086 *sps_id = get_ue_golomb_long(gb);
900
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 1086 if (*sps_id >= HEVC_MAX_SPS_COUNT) {
901 ✗ av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
902 ✗ return AVERROR_INVALIDDATA;
903 }
904
905 1086 sps->chroma_format_idc = get_ue_golomb_long(gb);
906
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 1086 if (sps->chroma_format_idc > 3U) {
907 ✗ av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
908 ✗ return AVERROR_INVALIDDATA;
909 }
910
911
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 1086 if (sps->chroma_format_idc == 3)
912 32 sps->separate_colour_plane = get_bits1(gb);
913
914
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 1086 if (sps->separate_colour_plane)
915 ✗ sps->chroma_format_idc = 0;
916
917 1086 sps->width = get_ue_golomb_long(gb);
918 1086 sps->height = get_ue_golomb_long(gb);
919
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 1086 if ((ret = av_image_check_size(sps->width,
920 1086 sps->height, 0, avctx)) < 0)
921 ✗ return ret;
922
923 1086 sps->conformance_window = get_bits1(gb);
924
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 1086 if (sps->conformance_window) {
925 895 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
926 895 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
927 895 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
928 895 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
929 895 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
930 895 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
931
932
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 895 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
933 ✗ av_log(avctx, AV_LOG_DEBUG,
934 "discarding sps conformance window, "
935 "original values are l:%u r:%u t:%u b:%u\n",
936 sps->pic_conf_win.left_offset,
937 sps->pic_conf_win.right_offset,
938 sps->pic_conf_win.top_offset,
939 sps->pic_conf_win.bottom_offset);
940
941 ✗ sps->pic_conf_win.left_offset =
942 ✗ sps->pic_conf_win.right_offset =
943 ✗ sps->pic_conf_win.top_offset =
944 ✗ sps->pic_conf_win.bottom_offset = 0;
945 }
946 895 sps->output_window = sps->pic_conf_win;
947 }
948
949 1086 sps->bit_depth = get_ue_golomb_31(gb) + 8;
950
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 1086 if (sps->bit_depth > 16) {
951 ✗ av_log(avctx, AV_LOG_ERROR, "Luma bit depth (%d) is out of range\n",
952 sps->bit_depth);
953 ✗ return AVERROR_INVALIDDATA;
954 }
955 1086 bit_depth_chroma = get_ue_golomb_31(gb) + 8;
956
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 1086 if (bit_depth_chroma > 16) {
957 ✗ av_log(avctx, AV_LOG_ERROR, "Chroma bit depth (%d) is out of range\n",
958 bit_depth_chroma);
959 ✗ return AVERROR_INVALIDDATA;
960 }
961
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 1086 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
962 ✗ av_log(avctx, AV_LOG_ERROR,
963 "Luma bit depth (%d) is different from chroma bit depth (%d), "
964 "this is unsupported.\n",
965 sps->bit_depth, bit_depth_chroma);
966 ✗ return AVERROR_INVALIDDATA;
967 }
968 1086 sps->bit_depth_chroma = bit_depth_chroma;
969
970 1086 ret = map_pixel_format(avctx, sps);
971
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 1086 if (ret < 0)
972 ✗ return ret;
973
974 1086 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
975
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 1086 if (sps->log2_max_poc_lsb > 16) {
976 ✗ av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
977 ✗ sps->log2_max_poc_lsb - 4);
978 ✗ return AVERROR_INVALIDDATA;
979 }
980
981 1086 sps->sublayer_ordering_info = get_bits1(gb);
982
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 1086 start = sps->sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
983
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 2319 for (i = start; i < sps->max_sub_layers; i++) {
984 1233 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
985 1233 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
986 1233 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
987
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 1233 if (sps->temporal_layer[i].max_dec_pic_buffering > (unsigned)HEVC_MAX_DPB_SIZE) {
988 ✗ av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
989 ✗ sps->temporal_layer[i].max_dec_pic_buffering - 1U);
990 ✗ return AVERROR_INVALIDDATA;
991 }
992
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 1233 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
993 ✗ av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
994 sps->temporal_layer[i].num_reorder_pics);
995 ✗ if (avctx->err_recognition & AV_EF_EXPLODE ||
996 ✗ sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) {
997 ✗ return AVERROR_INVALIDDATA;
998 }
999 ✗ sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
1000 }
1001 }
1002
1003
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 1086 if (!sps->sublayer_ordering_info) {
1004
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 234 for (i = 0; i < start; i++) {
1005 82 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
1006 82 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
1007 82 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
1008 }
1009 }
1010
1011 1086 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
1012 1086 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
1013 1086 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
1014 1086 sps->log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
1015 1086 sps->log2_max_trafo_size = sps->log2_diff_max_min_transform_block_size +
1016 1086 sps->log2_min_tb_size;
1017
1018
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 1086 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
1019 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
1020 ✗ return AVERROR_INVALIDDATA;
1021 }
1022
1023
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 1086 if (sps->log2_diff_max_min_coding_block_size > 30) {
1024 ✗ 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);
1025 ✗ return AVERROR_INVALIDDATA;
1026 }
1027
1028
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 1086 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
1029 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
1030 ✗ return AVERROR_INVALIDDATA;
1031 }
1032
1033
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 1086 if (sps->log2_diff_max_min_transform_block_size > 30) {
1034 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size",
1035 sps->log2_diff_max_min_transform_block_size);
1036 ✗ return AVERROR_INVALIDDATA;
1037 }
1038
1039 1086 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
1040 1086 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
1041
1042 1086 sps->scaling_list_enabled = get_bits1(gb);
1043
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 1086 if (sps->scaling_list_enabled) {
1044 47 set_default_scaling_list_data(&sps->scaling_list);
1045
1046
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 47 if (get_bits1(gb)) {
1047 26 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
1048
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 26 if (ret < 0)
1049 ✗ return ret;
1050 }
1051 }
1052
1053 1086 sps->amp_enabled = get_bits1(gb);
1054 1086 sps->sao_enabled = get_bits1(gb);
1055
1056 1086 sps->pcm_enabled = get_bits1(gb);
1057
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 1086 if (sps->pcm_enabled) {
1058 75 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
1059 75 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
1060 75 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
1061 150 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
1062 75 get_ue_golomb_long(gb);
1063
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 75 if (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) {
1064 ✗ av_log(avctx, AV_LOG_ERROR,
1065 "PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
1066 ✗ sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, sps->bit_depth);
1067 ✗ return AVERROR_INVALIDDATA;
1068 }
1069
1070 75 sps->pcm_loop_filter_disabled = get_bits1(gb);
1071 }
1072
1073 1086 sps->nb_st_rps = get_ue_golomb_long(gb);
1074
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 1086 if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
1075 ✗ av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
1076 sps->nb_st_rps);
1077 ✗ return AVERROR_INVALIDDATA;
1078 }
1079
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 10437 for (i = 0; i < sps->nb_st_rps; i++) {
1080
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 9351 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
1081 sps, 0)) < 0)
1082 ✗ return ret;
1083 }
1084
1085 1086 sps->long_term_ref_pics_present = get_bits1(gb);
1086
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 1086 if (sps->long_term_ref_pics_present) {
1087 101 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1088
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 101 if (sps->num_long_term_ref_pics_sps > HEVC_MAX_LONG_TERM_REF_PICS) {
1089 ✗ av_log(avctx, AV_LOG_ERROR, "Too many long term ref pics: %d.\n",
1090 ✗ sps->num_long_term_ref_pics_sps);
1091 ✗ return AVERROR_INVALIDDATA;
1092 }
1093
1094 101 sps->used_by_curr_pic_lt = 0;
1095
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 165 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1096 64 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1097 64 sps->used_by_curr_pic_lt |= get_bits1(gb) << i;
1098 }
1099 }
1100
1101 1086 sps->temporal_mvp_enabled = get_bits1(gb);
1102 1086 sps->strong_intra_smoothing_enabled = get_bits1(gb);
1103 1086 sps->vui.common.sar = (AVRational){0, 1};
1104 1086 sps->vui_present = get_bits1(gb);
1105
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 1086 if (sps->vui_present)
1106 286 decode_vui(gb, avctx, apply_defdispwin, sps);
1107
1108 1086 sps->extension_present = get_bits1(gb);
1109
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 1086 if (sps->extension_present) {
1110 76 sps->range_extension = get_bits1(gb);
1111 76 sps->multilayer_extension = get_bits1(gb);
1112 76 sps->sps_3d_extension = get_bits1(gb);
1113 76 sps->scc_extension = get_bits1(gb);
1114 76 skip_bits(gb, 4); // sps_extension_4bits
1115
1116
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 76 if (sps->range_extension) {
1117 56 sps->transform_skip_rotation_enabled = get_bits1(gb);
1118 56 sps->transform_skip_context_enabled = get_bits1(gb);
1119 56 sps->implicit_rdpcm_enabled = get_bits1(gb);
1120 56 sps->explicit_rdpcm_enabled = get_bits1(gb);
1121
1122 56 sps->extended_precision_processing = get_bits1(gb);
1123
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 56 if (sps->extended_precision_processing)
1124 ✗ av_log(avctx, AV_LOG_WARNING,
1125 "extended_precision_processing_flag not yet implemented\n");
1126
1127 56 sps->intra_smoothing_disabled = get_bits1(gb);
1128 56 sps->high_precision_offsets_enabled = get_bits1(gb);
1129
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 56 if (sps->high_precision_offsets_enabled)
1130 38 av_log(avctx, AV_LOG_WARNING,
1131 "high_precision_offsets_enabled_flag not yet implemented\n");
1132
1133 56 sps->persistent_rice_adaptation_enabled = get_bits1(gb);
1134
1135 56 sps->cabac_bypass_alignment_enabled = get_bits1(gb);
1136
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 56 if (sps->cabac_bypass_alignment_enabled)
1137 ✗ av_log(avctx, AV_LOG_WARNING,
1138 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1139 }
1140
1141
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 76 if (sps->multilayer_extension) {
1142 ✗ skip_bits1(gb); // inter_view_mv_vert_constraint_flag
1143 ✗ av_log(avctx, AV_LOG_WARNING,
1144 "sps_multilayer_extension_flag not yet implemented\n");
1145 }
1146
1147
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 76 if (sps->sps_3d_extension) {
1148 ✗ for (i = 0; i <= 1; i++) {
1149 ✗ skip_bits1(gb); // iv_di_mc_enabled_flag
1150 ✗ skip_bits1(gb); // iv_mv_scal_enabled_flag
1151 ✗ if (i == 0) {
1152 ✗ get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
1153 ✗ skip_bits1(gb); // iv_res_pred_enabled_flag
1154 ✗ skip_bits1(gb); // depth_ref_enabled_flag
1155 ✗ skip_bits1(gb); // vsp_mc_enabled_flag
1156 ✗ skip_bits1(gb); // dbbp_enabled_flag
1157 } else {
1158 ✗ skip_bits1(gb); // tex_mc_enabled_flag
1159 ✗ get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
1160 ✗ skip_bits1(gb); // intra_contour_enabled_flag
1161 ✗ skip_bits1(gb); // intra_dc_only_wedge_enabled_flag
1162 ✗ skip_bits1(gb); // cqt_cu_part_pred_enabled_flag
1163 ✗ skip_bits1(gb); // inter_dc_only_enabled_flag
1164 ✗ skip_bits1(gb); // skip_intra_enabled_flag
1165 }
1166 }
1167 ✗ av_log(avctx, AV_LOG_WARNING,
1168 "sps_3d_extension_flag not yet implemented\n");
1169 }
1170
1171
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 76 if (sps->scc_extension) {
1172 ✗ sps->curr_pic_ref_enabled = get_bits1(gb);
1173 ✗ sps->palette_mode_enabled = get_bits1(gb);
1174 ✗ if (sps->palette_mode_enabled) {
1175 ✗ sps->palette_max_size = get_ue_golomb(gb);
1176 ✗ sps->delta_palette_max_predictor_size = get_ue_golomb(gb);
1177 ✗ sps->palette_predictor_initializers_present = get_bits1(gb);
1178
1179 ✗ if (sps->palette_predictor_initializers_present) {
1180 ✗ sps->sps_num_palette_predictor_initializers = get_ue_golomb(gb) + 1;
1181 ✗ if (sps->sps_num_palette_predictor_initializers > HEVC_MAX_PALETTE_PREDICTOR_SIZE) {
1182 ✗ av_log(avctx, AV_LOG_ERROR,
1183 "sps_num_palette_predictor_initializers out of range: %u\n",
1184 sps->sps_num_palette_predictor_initializers);
1185 ✗ return AVERROR_INVALIDDATA;
1186 }
1187 ✗ num_comps = !sps->chroma_format_idc ? 1 : 3;
1188 ✗ for (int comp = 0; comp < num_comps; comp++) {
1189 ✗ int bit_depth = !comp ? sps->bit_depth : sps->bit_depth_chroma;
1190 ✗ for (i = 0; i < sps->sps_num_palette_predictor_initializers; i++)
1191 ✗ sps->sps_palette_predictor_initializer[comp][i] = get_bits(gb, bit_depth);
1192 }
1193 }
1194 }
1195 ✗ sps->motion_vector_resolution_control_idc = get_bits(gb, 2);
1196 ✗ sps->intra_boundary_filtering_disabled = get_bits1(gb);
1197 }
1198 }
1199
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 1086 if (apply_defdispwin) {
1200 434 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1201 434 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1202 434 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1203 434 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1204 }
1205
1206 1086 ow = &sps->output_window;
1207
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 1086 if (ow->left_offset >= INT_MAX - ow->right_offset ||
1208
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 1086 ow->top_offset >= INT_MAX - ow->bottom_offset ||
1209
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 1086 ow->left_offset + ow->right_offset >= sps->width ||
1210
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 1086 ow->top_offset + ow->bottom_offset >= sps->height) {
1211 ✗ av_log(avctx, AV_LOG_WARNING, "Invalid cropping offsets: %u/%u/%u/%u\n",
1212 ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset);
1213 ✗ if (avctx->err_recognition & AV_EF_EXPLODE) {
1214 ✗ return AVERROR_INVALIDDATA;
1215 }
1216 ✗ av_log(avctx, AV_LOG_WARNING,
1217 "Displaying the whole video surface.\n");
1218 ✗ memset(ow, 0, sizeof(*ow));
1219 ✗ memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1220 }
1221
1222 // Inferred parameters
1223 1086 sps->log2_ctb_size = sps->log2_min_cb_size +
1224 1086 sps->log2_diff_max_min_coding_block_size;
1225 1086 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1226
1227
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 1086 if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) {
1228 ✗ av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1229 ✗ return AVERROR_INVALIDDATA;
1230 }
1231
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 1086 if (sps->log2_ctb_size < 4) {
1232 ✗ av_log(avctx,
1233 AV_LOG_ERROR,
1234 "log2_ctb_size %d differs from the bounds of any known profile\n",
1235 sps->log2_ctb_size);
1236 ✗ avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1237 ✗ return AVERROR_INVALIDDATA;
1238 }
1239
1240 1086 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1241 1086 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1242 1086 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1243
1244 1086 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1245 1086 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1246 1086 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1247 1086 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1248 1086 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1249 1086 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1250 1086 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1251
1252 1086 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1253
1254
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 1086 if (av_zero_extend(sps->width, sps->log2_min_cb_size) ||
1255
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 1086 av_zero_extend(sps->height, sps->log2_min_cb_size)) {
1256 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1257 ✗ return AVERROR_INVALIDDATA;
1258 }
1259
1260
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 1086 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1261 ✗ av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1262 sps->max_transform_hierarchy_depth_inter);
1263 ✗ return AVERROR_INVALIDDATA;
1264 }
1265
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 1086 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1266 ✗ av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1267 sps->max_transform_hierarchy_depth_intra);
1268 ✗ return AVERROR_INVALIDDATA;
1269 }
1270
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 1086 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1271 ✗ av_log(avctx, AV_LOG_ERROR,
1272 "max transform block size out of range: %d\n",
1273 sps->log2_max_trafo_size);
1274 ✗ return AVERROR_INVALIDDATA;
1275 }
1276
1277
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 1086 if (get_bits_left(gb) < 0) {
1278 ✗ av_log(avctx, AV_LOG_ERROR,
1279 ✗ "Overread SPS by %d bits\n", -get_bits_left(gb));
1280 ✗ return AVERROR_INVALIDDATA;
1281 }
1282
1283 1086 return 0;
1284 }
1285
1286 1086 static void hevc_sps_free(FFRefStructOpaque opaque, void *obj)
1287 {
1288 1086 HEVCSPS *sps = obj;
1289
1290 1086 ff_refstruct_unref(&sps->vps);
1291
1292 1086 av_freep(&sps->data);
1293 1086 }
1294
1295 439 static int compare_sps(const HEVCSPS *sps1, const HEVCSPS *sps2)
1296 {
1297
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 874 return sps1->data_size == sps2->data_size &&
1298
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 435 !memcmp(sps1->data, sps2->data, sps1->data_size);
1299 }
1300
1301 1086 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1302 HEVCParamSets *ps, int apply_defdispwin)
1303 {
1304 1086 HEVCSPS *sps = ff_refstruct_alloc_ext(sizeof(*sps), 0, NULL, hevc_sps_free);
1305 unsigned int sps_id;
1306 int ret;
1307
1308
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 1086 if (!sps)
1309 ✗ return AVERROR(ENOMEM);
1310
1311 1086 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1312
1313 1086 sps->data_size = gb->buffer_end - gb->buffer;
1314 1086 sps->data = av_memdup(gb->buffer, sps->data_size);
1315
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 1086 if (!sps->data) {
1316 ✗ ret = AVERROR(ENOMEM);
1317 ✗ goto err;
1318 }
1319
1320 1086 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1321 apply_defdispwin,
1322 1086 ps->vps_list, avctx);
1323
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 1086 if (ret < 0)
1324 ✗ goto err;
1325
1326
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 1086 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1327 ✗ av_log(avctx, AV_LOG_DEBUG,
1328 "Parsed SPS: id %d; coded wxh: %dx%d; "
1329 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1330 ✗ sps_id, sps->width, sps->height,
1331 ✗ sps->width - (sps->output_window.left_offset + sps->output_window.right_offset),
1332 ✗ sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset),
1333 ✗ av_get_pix_fmt_name(sps->pix_fmt));
1334 }
1335
1336 /* check if this is a repeat of an already parsed SPS, then keep the
1337 * original one.
1338 * otherwise drop all PPSes that depend on it */
1339
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✓ Branch 3 taken 8 times.
 1525 if (ps->sps_list[sps_id] &&
1340 439 compare_sps(ps->sps_list[sps_id], sps)) {
1341 431 ff_refstruct_unref(&sps);
1342 } else {
1343 655 remove_sps(ps, sps_id);
1344 655 ps->sps_list[sps_id] = sps;
1345 }
1346
1347 1086 return 0;
1348 ✗ err:
1349 ✗ ff_refstruct_unref(&sps);
1350 ✗ return ret;
1351 }
1352
1353 2109 static void hevc_pps_free(FFRefStructOpaque unused, void *obj)
1354 {
1355 2109 HEVCPPS *pps = obj;
1356
1357 2109 ff_refstruct_unref(&pps->sps);
1358
1359 2109 av_freep(&pps->column_width);
1360 2109 av_freep(&pps->row_height);
1361 2109 av_freep(&pps->col_bd);
1362 2109 av_freep(&pps->row_bd);
1363 2109 av_freep(&pps->col_idxX);
1364 2109 av_freep(&pps->ctb_addr_rs_to_ts);
1365 2109 av_freep(&pps->ctb_addr_ts_to_rs);
1366 2109 av_freep(&pps->tile_pos_rs);
1367 2109 av_freep(&pps->tile_id);
1368 2109 av_freep(&pps->min_tb_addr_zs_tab);
1369 2109 av_freep(&pps->data);
1370 2109 }
1371
1372 3 static void colour_mapping_octants(GetBitContext *gb, HEVCPPS *pps, int inp_depth,
1373 int idx_y, int idx_cb, int idx_cr, int inp_length)
1374 {
1375 unsigned int split_octant_flag, part_num_y, coded_res_flag, res_coeff_q, res_coeff_r;
1376 int cm_res_bits;
1377
1378 3 part_num_y = 1 << pps->cm_y_part_num_log2;
1379
1380
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 3 split_octant_flag = inp_depth < pps->cm_octant_depth ? get_bits1(gb) : 0;
1381
1382
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 3 if (split_octant_flag)
1383 ✗ for (int k = 0; k < 2; k++)
1384 ✗ for (int m = 0; m < 2; m++)
1385 ✗ for (int n = 0; n < 2; n++)
1386 ✗ colour_mapping_octants(gb, pps, inp_depth + 1,
1387 ✗ idx_y + part_num_y * k * inp_length / 2,
1388 ✗ idx_cb + m * inp_length / 2,
1389 ✗ idx_cr + n * inp_length / 2,
1390 inp_length / 2);
1391 else
1392
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 27 for (int i = 0; i < part_num_y; i++) {
1393
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 120 for (int j = 0; j < 4; j++) {
1394 96 coded_res_flag = get_bits1(gb);
1395
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 96 if (coded_res_flag)
1396 ✗ for (int c = 0; c < 3; c++) {
1397 ✗ res_coeff_q = get_ue_golomb_long(gb);
1398 ✗ cm_res_bits = FFMAX(0, 10 + pps->luma_bit_depth_cm_input -
1399 pps->luma_bit_depth_cm_output -
1400 pps->cm_res_quant_bits - pps->cm_delta_flc_bits);
1401 ✗ res_coeff_r = cm_res_bits ? get_bits(gb, cm_res_bits) : 0;
1402 ✗ if (res_coeff_q || res_coeff_r)
1403 ✗ skip_bits1(gb);
1404 }
1405 }
1406 }
1407 3 }
1408
1409 3 static int colour_mapping_table(GetBitContext *gb, AVCodecContext *avctx, HEVCPPS *pps)
1410 {
1411 3 pps->num_cm_ref_layers = get_ue_golomb(gb) + 1;
1412
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 3 if (pps->num_cm_ref_layers > 62) {
1413 ✗ av_log(avctx, AV_LOG_ERROR,
1414 "num_cm_ref_layers_minus1 shall be in the range [0, 61].\n");
1415 ✗ return AVERROR_INVALIDDATA;
1416 }
1417
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 12 for (int i = 0; i < pps->num_cm_ref_layers; i++)
1418 9 pps->cm_ref_layer_id[i] = get_bits(gb, 6);
1419
1420 3 pps->cm_octant_depth = get_bits(gb, 2);
1421 3 pps->cm_y_part_num_log2 = get_bits(gb, 2);
1422
1423 3 pps->luma_bit_depth_cm_input = get_ue_golomb(gb) + 8;
1424 3 pps->chroma_bit_depth_cm_input = get_ue_golomb(gb) + 8;
1425 3 pps->luma_bit_depth_cm_output = get_ue_golomb(gb) + 8;
1426 3 pps->chroma_bit_depth_cm_output = get_ue_golomb(gb) + 8;
1427
1428 3 pps->cm_res_quant_bits = get_bits(gb, 2);
1429 3 pps->cm_delta_flc_bits = get_bits(gb, 2) + 1;
1430
1431
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 3 if (pps->cm_octant_depth == 1) {
1432 ✗ pps->cm_adapt_threshold_u_delta = get_se_golomb_long(gb);
1433 ✗ pps->cm_adapt_threshold_v_delta = get_se_golomb_long(gb);
1434 }
1435
1436 3 colour_mapping_octants(gb, pps, 0, 0, 0, 0, 1 << pps->cm_octant_depth);
1437
1438 3 return 0;
1439 }
1440
1441 3 static int pps_multilayer_extension(GetBitContext *gb, AVCodecContext *avctx,
1442 HEVCPPS *pps, const HEVCSPS *sps, const HEVCVPS *vps)
1443 {
1444 3 pps->poc_reset_info_present_flag = get_bits1(gb);
1445 3 pps->pps_infer_scaling_list_flag = get_bits1(gb);
1446
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 3 if (pps->pps_infer_scaling_list_flag)
1447 ✗ pps->pps_scaling_list_ref_layer_id = get_bits(gb, 6);
1448
1449 3 pps->num_ref_loc_offsets = get_ue_golomb(gb);
1450
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 3 if (pps->num_ref_loc_offsets > vps->vps_max_layers - 1)
1451 ✗ return AVERROR_INVALIDDATA;
1452
1453
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 3 for (int i = 0; i < pps->num_ref_loc_offsets; i++) {
1454 ✗ pps->ref_loc_offset_layer_id[i] = get_bits(gb, 6);
1455 ✗ pps->scaled_ref_layer_offset_present_flag[i] = get_bits1(gb);
1456 ✗ if (pps->scaled_ref_layer_offset_present_flag[i]) {
1457 ✗ pps->scaled_ref_layer_left_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1458 ✗ pps->scaled_ref_layer_top_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1459 ✗ pps->scaled_ref_layer_right_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1460 ✗ pps->scaled_ref_layer_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1461 }
1462
1463 ✗ pps->ref_region_offset_present_flag[i] = get_bits1(gb);
1464 ✗ if (pps->ref_region_offset_present_flag[i]) {
1465 ✗ pps->ref_region_left_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1466 ✗ pps->ref_region_top_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1467 ✗ pps->ref_region_right_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1468 ✗ pps->ref_region_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1469 }
1470
1471 ✗ pps->resample_phase_set_present_flag[i] = get_bits1(gb);
1472 ✗ if (pps->resample_phase_set_present_flag[i]) {
1473 ✗ pps->phase_hor_luma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_31(gb);
1474 ✗ pps->phase_ver_luma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_31(gb);
1475 ✗ pps->phase_hor_chroma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb(gb) - 8;
1476 ✗ pps->phase_ver_chroma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb(gb) - 8;
1477 }
1478 }
1479
1480 3 pps->colour_mapping_enabled_flag = get_bits1(gb);
1481
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 3 if (pps->colour_mapping_enabled_flag) {
1482 3 int ret = colour_mapping_table(gb, avctx, pps);
1483
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 3 if (ret < 0)
1484 ✗ return ret;
1485 }
1486
1487 3 return 0;
1488 }
1489
1490 ✗ static void delta_dlt(GetBitContext *gb, HEVCPPS *pps)
1491 {
1492 ✗ unsigned int num_val_delta_dlt, max_diff = 0;
1493 ✗ int min_diff_minus1 = -1;
1494 unsigned int len;
1495
1496 ✗ num_val_delta_dlt = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
1497 ✗ if (num_val_delta_dlt) {
1498 ✗ if (num_val_delta_dlt > 1)
1499 ✗ max_diff = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
1500 ✗ if (num_val_delta_dlt > 2 && max_diff) {
1501 ✗ len = av_log2(max_diff) + 1;
1502 ✗ min_diff_minus1 = get_bits(gb, len);
1503 }
1504 ✗ if (max_diff > (min_diff_minus1 + 1))
1505 ✗ for (int k = 1; k < num_val_delta_dlt; k++) {
1506 ✗ len = av_log2(max_diff - (min_diff_minus1 + 1)) + 1;
1507 ✗ skip_bits(gb, len); // delta_val_diff_minus_min
1508 }
1509 }
1510 ✗ }
1511
1512 3 static int pps_3d_extension(GetBitContext *gb, AVCodecContext *avctx,
1513 HEVCPPS *pps, const HEVCSPS *sps)
1514 {
1515 unsigned int pps_depth_layers_minus1;
1516
1517
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 3 if (get_bits1(gb)) { // dlts_present_flag
1518 ✗ pps_depth_layers_minus1 = get_bits(gb, 6);
1519 ✗ pps->pps_bit_depth_for_depth_layers_minus8 = get_bits(gb, 4);
1520 ✗ for (int i = 0; i <= pps_depth_layers_minus1; i++) {
1521 ✗ if (get_bits1(gb)) { // dlt_flag[i]
1522 ✗ if (!get_bits1(gb)) { // dlt_pred_flag[i]
1523 ✗ if (get_bits1(gb)) { // dlt_val_flags_present_flag[i]
1524 ✗ for (int j = 0; j <= ((1 << (pps->pps_bit_depth_for_depth_layers_minus8 + 8)) - 1); j++)
1525 ✗ skip_bits1(gb); // dlt_value_flag[i][j]
1526 } else
1527 ✗ delta_dlt(gb, pps);
1528 }
1529 }
1530 }
1531 }
1532
1533 3 return 0;
1534 }
1535
1536 63 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1537 HEVCPPS *pps, const HEVCSPS *sps)
1538 {
1539
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 63 if (pps->transform_skip_enabled_flag) {
1540 63 pps->log2_max_transform_skip_block_size = get_ue_golomb_31(gb) + 2;
1541 }
1542 63 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1543 63 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1544
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 63 if (pps->chroma_qp_offset_list_enabled_flag) {
1545 6 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_31(gb);
1546 6 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_31(gb);
1547
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 6 if (pps->chroma_qp_offset_list_len_minus1 > 5) {
1548 ✗ av_log(avctx, AV_LOG_ERROR,
1549 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1550 ✗ return AVERROR_INVALIDDATA;
1551 }
1552
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 12 for (int i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1553 6 pps->cb_qp_offset_list[i] = get_se_golomb(gb);
1554
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 6 if (pps->cb_qp_offset_list[i]) {
1555 6 av_log(avctx, AV_LOG_WARNING,
1556 "cb_qp_offset_list not tested yet.\n");
1557 }
1558 6 pps->cr_qp_offset_list[i] = get_se_golomb(gb);
1559
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 6 if (pps->cr_qp_offset_list[i]) {
1560 6 av_log(avctx, AV_LOG_WARNING,
1561 "cb_qp_offset_list not tested yet.\n");
1562 }
1563 }
1564 }
1565 63 pps->log2_sao_offset_scale_luma = get_ue_golomb_31(gb);
1566 63 pps->log2_sao_offset_scale_chroma = get_ue_golomb_31(gb);
1567
1568
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 63 if ( pps->log2_sao_offset_scale_luma > FFMAX(sps->bit_depth - 10, 0)
1569
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 63 || pps->log2_sao_offset_scale_chroma > FFMAX(sps->bit_depth_chroma - 10, 0)
1570 )
1571 ✗ return AVERROR_INVALIDDATA;
1572
1573 63 return(0);
1574 }
1575
1576 3 static int pps_scc_extension(GetBitContext *gb, AVCodecContext *avctx,
1577 HEVCPPS *pps, const HEVCSPS *sps)
1578 {
1579 int num_comps, ret;
1580
1581 3 pps->pps_curr_pic_ref_enabled_flag = get_bits1(gb);
1582
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 3 if (pps->residual_adaptive_colour_transform_enabled_flag = get_bits1(gb)) {
1583 ✗ pps->pps_slice_act_qp_offsets_present_flag = get_bits1(gb);
1584 ✗ pps->pps_act_y_qp_offset = get_se_golomb(gb) - 5;
1585 ✗ pps->pps_act_cb_qp_offset = get_se_golomb(gb) - 5;
1586 ✗ pps->pps_act_cr_qp_offset = get_se_golomb(gb) - 3;
1587
1588 #define CHECK_QP_OFFSET(name) (pps->pps_act_ ## name ## _qp_offset <= -12 || \
1589 pps->pps_act_ ## name ## _qp_offset >= 12)
1590 ✗ ret = CHECK_QP_OFFSET(y) || CHECK_QP_OFFSET(cb) || CHECK_QP_OFFSET(cr);
1591 #undef CHECK_QP_OFFSET
1592 ✗ if (ret) {
1593 ✗ av_log(avctx, AV_LOG_ERROR,
1594 "PpsActQpOffsetY/Cb/Cr shall be in the range of [-12, 12].\n");
1595 ✗ return AVERROR_INVALIDDATA;
1596 }
1597 }
1598
1599
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 3 if (pps->pps_palette_predictor_initializers_present_flag = get_bits1(gb)) {
1600 ✗ pps->pps_num_palette_predictor_initializers = get_ue_golomb(gb);
1601 ✗ if (pps->pps_num_palette_predictor_initializers > 0) {
1602 ✗ if (pps->pps_num_palette_predictor_initializers > HEVC_MAX_PALETTE_PREDICTOR_SIZE) {
1603 ✗ av_log(avctx, AV_LOG_ERROR,
1604 "pps_num_palette_predictor_initializers out of range: %u\n",
1605 ✗ pps->pps_num_palette_predictor_initializers);
1606 ✗ return AVERROR_INVALIDDATA;
1607 }
1608 ✗ pps->monochrome_palette_flag = get_bits1(gb);
1609 ✗ pps->luma_bit_depth_entry = get_ue_golomb_31(gb) + 8;
1610 ✗ if (pps->luma_bit_depth_entry != sps->bit_depth)
1611 ✗ return AVERROR_INVALIDDATA;
1612 ✗ if (!pps->monochrome_palette_flag) {
1613 ✗ pps->chroma_bit_depth_entry = get_ue_golomb_31(gb) + 8;
1614 ✗ if (pps->chroma_bit_depth_entry != sps->bit_depth_chroma)
1615 ✗ return AVERROR_INVALIDDATA;
1616 }
1617
1618 ✗ num_comps = pps->monochrome_palette_flag ? 1 : 3;
1619 ✗ for (int comp = 0; comp < num_comps; comp++) {
1620 ✗ int bit_depth = !comp ? pps->luma_bit_depth_entry : pps->chroma_bit_depth_entry;
1621 ✗ for (int i = 0; i < pps->pps_num_palette_predictor_initializers; i++)
1622 ✗ pps->pps_palette_predictor_initializer[comp][i] = get_bits(gb, bit_depth);
1623 }
1624 }
1625 }
1626
1627 3 return 0;
1628 }
1629
1630 2105 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1631 HEVCPPS *pps, const HEVCSPS *sps)
1632 {
1633 int log2_diff;
1634 int pic_area_in_ctbs;
1635 int i, j, x, y, ctb_addr_rs, tile_id;
1636
1637 // Inferred parameters
1638 2105 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1639 2105 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1640 2105 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1641
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 2105 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1642 ✗ return AVERROR(ENOMEM);
1643
1644
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 2105 if (pps->uniform_spacing_flag) {
1645
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 1584 if (!pps->column_width) {
1646 1358 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1647 1358 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1648 }
1649
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 1584 if (!pps->column_width || !pps->row_height)
1650 ✗ return AVERROR(ENOMEM);
1651
1652
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 3329 for (i = 0; i < pps->num_tile_columns; i++) {
1653 1745 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1654 1745 (i * sps->ctb_width) / pps->num_tile_columns;
1655 }
1656
1657
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 3347 for (i = 0; i < pps->num_tile_rows; i++) {
1658 1763 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1659 1763 (i * sps->ctb_height) / pps->num_tile_rows;
1660 }
1661 }
1662
1663 2105 pps->col_bd[0] = 0;
1664
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 6413 for (i = 0; i < pps->num_tile_columns; i++)
1665 4308 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1666
1667 2105 pps->row_bd[0] = 0;
1668
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 6419 for (i = 0; i < pps->num_tile_rows; i++)
1669 4314 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1670
1671
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 43737 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1672
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 41632 if (i > pps->col_bd[j])
1673 4299 j++;
1674 41632 pps->col_idxX[i] = j;
1675 }
1676
1677 /**
1678 * 6.5
1679 */
1680 2105 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1681
1682 2105 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1683 2105 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1684 2105 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1685 2105 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1686
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 2105 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1687
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 2105 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1688 ✗ return AVERROR(ENOMEM);
1689 }
1690
1691
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 658864 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1692 656759 int tb_x = ctb_addr_rs % sps->ctb_width;
1693 656759 int tb_y = ctb_addr_rs / sps->ctb_width;
1694 656759 int tile_x = 0;
1695 656759 int tile_y = 0;
1696 656759 int val = 0;
1697
1698
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 1167311 for (i = 0; i < pps->num_tile_columns; i++) {
1699
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 1167311 if (tb_x < pps->col_bd[i + 1]) {
1700 656759 tile_x = i;
1701 656759 break;
1702 }
1703 }
1704
1705
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 1035157 for (i = 0; i < pps->num_tile_rows; i++) {
1706
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 1035157 if (tb_y < pps->row_bd[i + 1]) {
1707 656759 tile_y = i;
1708 656759 break;
1709 }
1710 }
1711
1712
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 1167311 for (i = 0; i < tile_x; i++)
1713 510552 val += pps->row_height[tile_y] * pps->column_width[i];
1714
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 1035157 for (i = 0; i < tile_y; i++)
1715 378398 val += sps->ctb_width * pps->row_height[i];
1716
1717 656759 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1718 656759 tb_x - pps->col_bd[tile_x];
1719
1720 656759 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1721 656759 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1722 }
1723
1724
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 6419 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1725
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 18983 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1726
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 79673 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1727
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 721763 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1728 656759 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1729
1730 2105 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1731
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 2105 if (!pps->tile_pos_rs)
1732 ✗ return AVERROR(ENOMEM);
1733
1734
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 6419 for (j = 0; j < pps->num_tile_rows; j++)
1735
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 18983 for (i = 0; i < pps->num_tile_columns; i++)
1736 14669 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1737 14669 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1738
1739 2105 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1740 2105 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1741
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 36934 for (y = 0; y < sps->tb_mask+2; y++) {
1742 34829 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1743 34829 pps->min_tb_addr_zs_tab[y] = -1;
1744 }
1745
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 34829 for (y = 0; y < sps->tb_mask+1; y++) {
1746
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 550052 for (x = 0; x < sps->tb_mask+1; x++) {
1747 517328 int tb_x = x >> log2_diff;
1748 517328 int tb_y = y >> log2_diff;
1749 517328 int rs = sps->ctb_width * tb_y + tb_x;
1750 517328 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1751
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 2580848 for (i = 0; i < log2_diff; i++) {
1752 2063520 int m = 1 << i;
1753
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 2063520 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1754 }
1755 517328 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1756 }
1757 }
1758
1759 2105 return 0;
1760 }
1761
1762 3310 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1763 HEVCParamSets *ps)
1764 {
1765 3310 const HEVCSPS *sps = NULL;
1766 3310 const HEVCVPS *vps = NULL;
1767 3310 int i, ret = 0;
1768 3310 ptrdiff_t nal_size = gb->buffer_end - gb->buffer;
1769 3310 unsigned int pps_id = get_ue_golomb_long(gb);
1770 unsigned log2_parallel_merge_level_minus2;
1771 HEVCPPS *pps;
1772
1773 3310 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1774
1775
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 3310 if (pps_id >= HEVC_MAX_PPS_COUNT) {
1776 ✗ av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1777 ✗ return AVERROR_INVALIDDATA;
1778 }
1779
1780
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 3310 if (ps->pps_list[pps_id]) {
1781 2406 const HEVCPPS *pps1 = ps->pps_list[pps_id];
1782
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 2406 if (pps1->data_size == nal_size &&
1783
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✓ Branch 1 taken 825 times.
 2026 !memcmp(pps1->data, gb->buffer, pps1->data_size))
1784 1201 return 0;
1785 }
1786
1787 2109 pps = ff_refstruct_alloc_ext(sizeof(*pps), 0, NULL, hevc_pps_free);
1788
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 2109 if (!pps)
1789 ✗ return AVERROR(ENOMEM);
1790
1791 2109 pps->data_size = nal_size;
1792 2109 pps->data = av_memdup(gb->buffer, nal_size);
1793
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 2109 if (!pps->data) {
1794 ✗ ret = AVERROR_INVALIDDATA;
1795 ✗ goto err;
1796 }
1797
1798 // Default values
1799 2109 pps->loop_filter_across_tiles_enabled_flag = 1;
1800 2109 pps->num_tile_columns = 1;
1801 2109 pps->num_tile_rows = 1;
1802 2109 pps->uniform_spacing_flag = 1;
1803 2109 pps->disable_dbf = 0;
1804 2109 pps->beta_offset = 0;
1805 2109 pps->tc_offset = 0;
1806 2109 pps->log2_max_transform_skip_block_size = 2;
1807
1808 // Coded parameters
1809 2109 pps->pps_id = pps_id;
1810 2109 pps->sps_id = get_ue_golomb_long(gb);
1811
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 2109 if (pps->sps_id >= HEVC_MAX_SPS_COUNT) {
1812 ✗ av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1813 ✗ ret = AVERROR_INVALIDDATA;
1814 ✗ goto err;
1815 }
1816
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 2109 if (!ps->sps_list[pps->sps_id]) {
1817 4 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1818 4 ret = AVERROR_INVALIDDATA;
1819 4 goto err;
1820 }
1821 2105 sps = ps->sps_list[pps->sps_id];
1822 2105 vps = ps->vps_list[sps->vps_id];
1823
1824 2105 pps->sps = ff_refstruct_ref_c(sps);
1825
1826 2105 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1827 2105 pps->output_flag_present_flag = get_bits1(gb);
1828 2105 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1829
1830 2105 pps->sign_data_hiding_flag = get_bits1(gb);
1831
1832 2105 pps->cabac_init_present_flag = get_bits1(gb);
1833
1834 2105 pps->num_ref_idx_l0_default_active = get_ue_golomb_31(gb) + 1;
1835 2105 pps->num_ref_idx_l1_default_active = get_ue_golomb_31(gb) + 1;
1836
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 2105 if (pps->num_ref_idx_l0_default_active >= HEVC_MAX_REFS ||
1837
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 2105 pps->num_ref_idx_l1_default_active >= HEVC_MAX_REFS) {
1838 ✗ av_log(avctx, AV_LOG_ERROR, "Too many default refs in PPS: %d/%d.\n",
1839 ✗ pps->num_ref_idx_l0_default_active, pps->num_ref_idx_l1_default_active);
1840 ✗ goto err;
1841 }
1842
1843 2105 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1844
1845 2105 pps->constrained_intra_pred_flag = get_bits1(gb);
1846 2105 pps->transform_skip_enabled_flag = get_bits1(gb);
1847
1848 2105 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1849 2105 pps->diff_cu_qp_delta_depth = 0;
1850
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 2105 if (pps->cu_qp_delta_enabled_flag)
1851 471 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1852
1853
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 2105 if (pps->diff_cu_qp_delta_depth < 0 ||
1854
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 2105 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
1855 ✗ av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
1856 ✗ pps->diff_cu_qp_delta_depth);
1857 ✗ ret = AVERROR_INVALIDDATA;
1858 ✗ goto err;
1859 }
1860
1861 2105 pps->cb_qp_offset = get_se_golomb(gb);
1862
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 2105 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1863 ✗ av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1864 ✗ pps->cb_qp_offset);
1865 ✗ ret = AVERROR_INVALIDDATA;
1866 ✗ goto err;
1867 }
1868 2105 pps->cr_qp_offset = get_se_golomb(gb);
1869
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 2105 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1870 ✗ av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1871 ✗ pps->cr_qp_offset);
1872 ✗ ret = AVERROR_INVALIDDATA;
1873 ✗ goto err;
1874 }
1875 2105 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1876
1877 2105 pps->weighted_pred_flag = get_bits1(gb);
1878 2105 pps->weighted_bipred_flag = get_bits1(gb);
1879
1880 2105 pps->transquant_bypass_enable_flag = get_bits1(gb);
1881 2105 pps->tiles_enabled_flag = get_bits1(gb);
1882 2105 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1883
1884
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 2105 if (pps->tiles_enabled_flag) {
1885 747 int num_tile_columns_minus1 = get_ue_golomb(gb);
1886 747 int num_tile_rows_minus1 = get_ue_golomb(gb);
1887
1888
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 747 if (num_tile_columns_minus1 < 0 ||
1889
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 747 num_tile_columns_minus1 >= sps->ctb_width) {
1890 ✗ av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1891 num_tile_columns_minus1);
1892 ✗ ret = num_tile_columns_minus1 < 0 ? num_tile_columns_minus1 : AVERROR_INVALIDDATA;
1893 ✗ goto err;
1894 }
1895
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 747 if (num_tile_rows_minus1 < 0 ||
1896
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 747 num_tile_rows_minus1 >= sps->ctb_height) {
1897 ✗ av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1898 num_tile_rows_minus1);
1899 ✗ ret = num_tile_rows_minus1 < 0 ? num_tile_rows_minus1 : AVERROR_INVALIDDATA;
1900 ✗ goto err;
1901 }
1902 747 pps->num_tile_columns = num_tile_columns_minus1 + 1;
1903 747 pps->num_tile_rows = num_tile_rows_minus1 + 1;
1904
1905 747 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1906 747 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1907
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 747 if (!pps->column_width || !pps->row_height) {
1908 ✗ ret = AVERROR(ENOMEM);
1909 ✗ goto err;
1910 }
1911
1912 747 pps->uniform_spacing_flag = get_bits1(gb);
1913
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 747 if (!pps->uniform_spacing_flag) {
1914 521 uint64_t sum = 0;
1915
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 2563 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1916 2042 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1917 2042 sum += pps->column_width[i];
1918 }
1919
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 521 if (sum >= sps->ctb_width) {
1920 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1921 ✗ ret = AVERROR_INVALIDDATA;
1922 ✗ goto err;
1923 }
1924 521 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1925
1926 521 sum = 0;
1927
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 2551 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1928 2030 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1929 2030 sum += pps->row_height[i];
1930 }
1931
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 521 if (sum >= sps->ctb_height) {
1932 ✗ av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1933 ✗ ret = AVERROR_INVALIDDATA;
1934 ✗ goto err;
1935 }
1936 521 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1937 }
1938 747 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1939 }
1940
1941 2105 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1942
1943 2105 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1944
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 2105 if (pps->deblocking_filter_control_present_flag) {
1945 868 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1946 868 pps->disable_dbf = get_bits1(gb);
1947
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 868 if (!pps->disable_dbf) {
1948 742 int beta_offset_div2 = get_se_golomb(gb);
1949 742 int tc_offset_div2 = get_se_golomb(gb) ;
1950
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 742 if (beta_offset_div2 < -6 || beta_offset_div2 > 6) {
1951 ✗ av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1952 beta_offset_div2);
1953 ✗ ret = AVERROR_INVALIDDATA;
1954 ✗ goto err;
1955 }
1956
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 742 if (tc_offset_div2 < -6 || tc_offset_div2 > 6) {
1957 ✗ av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1958 tc_offset_div2);
1959 ✗ ret = AVERROR_INVALIDDATA;
1960 ✗ goto err;
1961 }
1962 742 pps->beta_offset = 2 * beta_offset_div2;
1963 742 pps->tc_offset = 2 * tc_offset_div2;
1964 }
1965 }
1966
1967 2105 pps->scaling_list_data_present_flag = get_bits1(gb);
1968
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 2105 if (pps->scaling_list_data_present_flag) {
1969 115 set_default_scaling_list_data(&pps->scaling_list);
1970 115 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
1971
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 115 if (ret < 0)
1972 ✗ goto err;
1973 }
1974 2105 pps->lists_modification_present_flag = get_bits1(gb);
1975 2105 log2_parallel_merge_level_minus2 = get_ue_golomb_long(gb);
1976
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 2105 if (log2_parallel_merge_level_minus2 > sps->log2_ctb_size) {
1977 ✗ av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1978 log2_parallel_merge_level_minus2);
1979 ✗ ret = AVERROR_INVALIDDATA;
1980 ✗ goto err;
1981 }
1982 2105 pps->log2_parallel_merge_level = log2_parallel_merge_level_minus2 + 2;
1983
1984 2105 pps->slice_header_extension_present_flag = get_bits1(gb);
1985
1986 2105 pps->pps_extension_present_flag = get_bits1(gb);
1987
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 2105 if (pps->pps_extension_present_flag) {
1988 69 pps->pps_range_extensions_flag = get_bits1(gb);
1989 69 pps->pps_multilayer_extension_flag = get_bits1(gb);
1990 69 pps->pps_3d_extension_flag = get_bits1(gb);
1991 69 pps->pps_scc_extension_flag = get_bits1(gb);
1992 69 skip_bits(gb, 4); // pps_extension_4bits
1993
1994
3/4
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 69 if (sps->ptl.general_ptl.profile_idc >= AV_PROFILE_HEVC_REXT && pps->pps_range_extensions_flag) {
1995
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 63 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
1996 ✗ goto err;
1997 }
1998
1999
2/2
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 69 if (pps->pps_multilayer_extension_flag) {
2000
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 3 if ((ret = pps_multilayer_extension(gb, avctx, pps, sps, vps)) < 0)
2001 ✗ goto err;
2002 }
2003
2004
2/2
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 69 if (pps->pps_3d_extension_flag) {
2005
1/2
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 3 if ((ret = pps_3d_extension(gb, avctx, pps, sps)) < 0)
2006 ✗ goto err;
2007 }
2008
2009
2/2
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 69 if (pps->pps_scc_extension_flag) {
2010
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 3 if ((ret = pps_scc_extension(gb, avctx, pps, sps)) < 0)
2011 ✗ goto err;
2012 }
2013 }
2014
2015 2105 ret = setup_pps(avctx, gb, pps, sps);
2016
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 2105 if (ret < 0)
2017 ✗ goto err;
2018
2019
2/2
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 2105 if (get_bits_left(gb) < 0) {
2020 3 av_log(avctx, AV_LOG_WARNING,
2021 3 "Overread PPS by %d bits\n", -get_bits_left(gb));
2022 }
2023
2024 2105 ff_refstruct_unref(&ps->pps_list[pps_id]);
2025 2105 ps->pps_list[pps_id] = pps;
2026
2027 2105 return 0;
2028
2029 4 err:
2030 4 ff_refstruct_unref(&pps);
2031 4 return ret;
2032 }
2033
2034 677 void ff_hevc_ps_uninit(HEVCParamSets *ps)
2035 {
2036 int i;
2037
2038
2/2
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✓ Branch 1 taken 677 times.
 11509 for (i = 0; i < FF_ARRAY_ELEMS(ps->vps_list); i++)
2039 10832 ff_refstruct_unref(&ps->vps_list[i]);
2040
2/2
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 11509 for (i = 0; i < FF_ARRAY_ELEMS(ps->sps_list); i++)
2041 10832 ff_refstruct_unref(&ps->sps_list[i]);
2042
2/2
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 44005 for (i = 0; i < FF_ARRAY_ELEMS(ps->pps_list); i++)
2043 43328 ff_refstruct_unref(&ps->pps_list[i]);
2044 677 }
2045
2046 30737 int ff_hevc_compute_poc(const HEVCSPS *sps, int pocTid0, int poc_lsb, int nal_unit_type)
2047 {
2048 30737 int max_poc_lsb = 1 << sps->log2_max_poc_lsb;
2049 30737 int prev_poc_lsb = pocTid0 % max_poc_lsb;
2050 30737 int prev_poc_msb = pocTid0 - prev_poc_lsb;
2051 int poc_msb;
2052
2053
4/4
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 30737 if (poc_lsb < prev_poc_lsb && prev_poc_lsb - poc_lsb >= max_poc_lsb / 2)
2054 40 poc_msb = prev_poc_msb + max_poc_lsb;
2055
4/4
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 30697 else if (poc_lsb > prev_poc_lsb && poc_lsb - prev_poc_lsb > max_poc_lsb / 2)
2056 302 poc_msb = prev_poc_msb - max_poc_lsb;
2057 else
2058 30395 poc_msb = prev_poc_msb;
2059
2060 // For BLA picture types, POCmsb is set to 0.
2061
4/4
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 30737 if (nal_unit_type == HEVC_NAL_BLA_W_LP ||
2062
2/2
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 30716 nal_unit_type == HEVC_NAL_BLA_W_RADL ||
2063 nal_unit_type == HEVC_NAL_BLA_N_LP)
2064 24 poc_msb = 0;
2065
2066 30737 return poc_msb + poc_lsb;
2067 }
2068