FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/hevc_ps.c
Date: 2023-03-22 23:59:29
Exec Total Coverage
Lines: 888 1240 71.6%
Functions: 26 27 96.3%
Branches: 532 853 62.4%

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 "golomb.h"
28 #include "h2645_vui.h"
29 #include "hevc_data.h"
30 #include "hevc_ps.h"
31
32 static const uint8_t default_scaling_list_intra[] = {
33 16, 16, 16, 16, 17, 18, 21, 24,
34 16, 16, 16, 16, 17, 19, 22, 25,
35 16, 16, 17, 18, 20, 22, 25, 29,
36 16, 16, 18, 21, 24, 27, 31, 36,
37 17, 17, 20, 24, 30, 35, 41, 47,
38 18, 19, 22, 27, 35, 44, 54, 65,
39 21, 22, 25, 31, 41, 54, 70, 88,
40 24, 25, 29, 36, 47, 65, 88, 115
41 };
42
43 static const uint8_t default_scaling_list_inter[] = {
44 16, 16, 16, 16, 17, 18, 20, 24,
45 16, 16, 16, 17, 18, 20, 24, 25,
46 16, 16, 17, 18, 20, 24, 25, 28,
47 16, 17, 18, 20, 24, 25, 28, 33,
48 17, 18, 20, 24, 25, 28, 33, 41,
49 18, 20, 24, 25, 28, 33, 41, 54,
50 20, 24, 25, 28, 33, 41, 54, 71,
51 24, 25, 28, 33, 41, 54, 71, 91
52 };
53
54 static const uint8_t hevc_sub_width_c[] = {
55 1, 2, 2, 1
56 };
57
58 static const uint8_t hevc_sub_height_c[] = {
59 1, 2, 1, 1
60 };
61
62 3257 static void remove_pps(HEVCParamSets *s, int id)
63 {
64
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3257 if (s->pps_list[id] && s->pps == (const HEVCPPS*)s->pps_list[id]->data)
65 1789 s->pps = NULL;
66 3257 av_buffer_unref(&s->pps_list[id]);
67 3257 }
68
69 607 static void remove_sps(HEVCParamSets *s, int id)
70 {
71 int i;
72
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607 if (s->sps_list[id]) {
73
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11 if (s->sps == (const HEVCSPS*)s->sps_list[id]->data)
74 11 s->sps = NULL;
75
76 /* drop all PPS that depend on this SPS */
77
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715 for (i = 0; i < FF_ARRAY_ELEMS(s->pps_list); i++)
78
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704 if (s->pps_list[i] && ((HEVCPPS*)s->pps_list[i]->data)->sps_id == id)
79 11 remove_pps(s, i);
80
81
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11 av_assert0(!(s->sps_list[id] && s->sps == (HEVCSPS*)s->sps_list[id]->data));
82 }
83 607 av_buffer_unref(&s->sps_list[id]);
84 607 }
85
86 594 static void remove_vps(HEVCParamSets *s, int id)
87 {
88 int i;
89
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594 if (s->vps_list[id]) {
90
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3 if (s->vps == (const HEVCVPS*)s->vps_list[id]->data)
91 3 s->vps = NULL;
92
93
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51 for (i = 0; i < FF_ARRAY_ELEMS(s->sps_list); i++)
94
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48 if (s->sps_list[i] && ((HEVCSPS*)s->sps_list[i]->data)->vps_id == id)
95 3 remove_sps(s, i);
96 }
97 594 av_buffer_unref(&s->vps_list[id]);
98 594 }
99
100 12350 int ff_hevc_decode_short_term_rps(GetBitContext *gb, AVCodecContext *avctx,
101 ShortTermRPS *rps, const HEVCSPS *sps, int is_slice_header)
102 {
103 12350 uint8_t rps_predict = 0;
104 int delta_poc;
105 12350 int k0 = 0;
106 12350 int k = 0;
107 int i;
108
109
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12350 if (rps != sps->st_rps && sps->nb_st_rps)
110 11172 rps_predict = get_bits1(gb);
111
112
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12350 if (rps_predict) {
113 const ShortTermRPS *rps_ridx;
114 int delta_rps;
115 unsigned abs_delta_rps;
116 7414 uint8_t use_delta_flag = 0;
117 uint8_t delta_rps_sign;
118
119
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7414 if (is_slice_header) {
120 619 unsigned int delta_idx = get_ue_golomb_long(gb) + 1;
121
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619 if (delta_idx > sps->nb_st_rps) {
122 av_log(avctx, AV_LOG_ERROR,
123 "Invalid value of delta_idx in slice header RPS: %d > %d.\n",
124 delta_idx, sps->nb_st_rps);
125 return AVERROR_INVALIDDATA;
126 }
127 619 rps_ridx = &sps->st_rps[sps->nb_st_rps - delta_idx];
128 619 rps->rps_idx_num_delta_pocs = rps_ridx->num_delta_pocs;
129 } else
130 6795 rps_ridx = &sps->st_rps[rps - sps->st_rps - 1];
131
132 7414 delta_rps_sign = get_bits1(gb);
133 7414 abs_delta_rps = get_ue_golomb_long(gb) + 1;
134
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7414 if (abs_delta_rps < 1 || abs_delta_rps > 32768) {
135 av_log(avctx, AV_LOG_ERROR,
136 "Invalid value of abs_delta_rps: %d\n",
137 abs_delta_rps);
138 return AVERROR_INVALIDDATA;
139 }
140 7414 delta_rps = (1 - (delta_rps_sign << 1)) * abs_delta_rps;
141
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39560 for (i = 0; i <= rps_ridx->num_delta_pocs; i++) {
142 32146 int used = rps->used[k] = get_bits1(gb);
143
144
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32146 if (!used)
145 6381 use_delta_flag = get_bits1(gb);
146
147
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32146 if (used || use_delta_flag) {
148
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25815 if (i < rps_ridx->num_delta_pocs)
149 20337 delta_poc = delta_rps + rps_ridx->delta_poc[i];
150 else
151 5478 delta_poc = delta_rps;
152 25815 rps->delta_poc[k] = delta_poc;
153
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25815 if (delta_poc < 0)
154 17936 k0++;
155 25815 k++;
156 }
157 }
158
159
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7414 if (k >= FF_ARRAY_ELEMS(rps->used)) {
160 av_log(avctx, AV_LOG_ERROR,
161 "Invalid num_delta_pocs: %d\n", k);
162 return AVERROR_INVALIDDATA;
163 }
164
165 7414 rps->num_delta_pocs = k;
166 7414 rps->num_negative_pics = k0;
167 // sort in increasing order (smallest first)
168
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7414 if (rps->num_delta_pocs != 0) {
169 int used, tmp;
170
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25815 for (i = 1; i < rps->num_delta_pocs; i++) {
171 18401 delta_poc = rps->delta_poc[i];
172 18401 used = rps->used[i];
173
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52679 for (k = i - 1; k >= 0; k--) {
174 34278 tmp = rps->delta_poc[k];
175
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34278 if (delta_poc < tmp) {
176 10983 rps->delta_poc[k + 1] = tmp;
177 10983 rps->used[k + 1] = rps->used[k];
178 10983 rps->delta_poc[k] = delta_poc;
179 10983 rps->used[k] = used;
180 }
181 }
182 }
183 }
184
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7414 if ((rps->num_negative_pics >> 1) != 0) {
185 int used;
186 5635 k = rps->num_negative_pics - 1;
187 // flip the negative values to largest first
188
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13043 for (i = 0; i < rps->num_negative_pics >> 1; i++) {
189 7408 delta_poc = rps->delta_poc[i];
190 7408 used = rps->used[i];
191 7408 rps->delta_poc[i] = rps->delta_poc[k];
192 7408 rps->used[i] = rps->used[k];
193 7408 rps->delta_poc[k] = delta_poc;
194 7408 rps->used[k] = used;
195 7408 k--;
196 }
197 }
198 } else {
199 unsigned int prev, nb_positive_pics;
200 4936 rps->num_negative_pics = get_ue_golomb_long(gb);
201 4936 nb_positive_pics = get_ue_golomb_long(gb);
202
203
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4936 if (rps->num_negative_pics >= HEVC_MAX_REFS ||
204 nb_positive_pics >= HEVC_MAX_REFS) {
205 av_log(avctx, AV_LOG_ERROR, "Too many refs in a short term RPS.\n");
206 return AVERROR_INVALIDDATA;
207 }
208
209 4936 rps->num_delta_pocs = rps->num_negative_pics + nb_positive_pics;
210
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4936 if (rps->num_delta_pocs) {
211 4614 prev = 0;
212
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18491 for (i = 0; i < rps->num_negative_pics; i++) {
213 13877 delta_poc = get_ue_golomb_long(gb) + 1;
214
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13877 if (delta_poc < 1 || delta_poc > 32768) {
215 av_log(avctx, AV_LOG_ERROR,
216 "Invalid value of delta_poc: %d\n",
217 delta_poc);
218 return AVERROR_INVALIDDATA;
219 }
220 13877 prev -= delta_poc;
221 13877 rps->delta_poc[i] = prev;
222 13877 rps->used[i] = get_bits1(gb);
223 }
224 4614 prev = 0;
225
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5811 for (i = 0; i < nb_positive_pics; i++) {
226 1197 delta_poc = get_ue_golomb_long(gb) + 1;
227
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1197 if (delta_poc < 1 || delta_poc > 32768) {
228 av_log(avctx, AV_LOG_ERROR,
229 "Invalid value of delta_poc: %d\n",
230 delta_poc);
231 return AVERROR_INVALIDDATA;
232 }
233 1197 prev += delta_poc;
234 1197 rps->delta_poc[rps->num_negative_pics + i] = prev;
235 1197 rps->used[rps->num_negative_pics + i] = get_bits1(gb);
236 }
237 }
238 }
239 12350 return 0;
240 }
241
242
243 2117 static int decode_profile_tier_level(GetBitContext *gb, AVCodecContext *avctx,
244 PTLCommon *ptl)
245 {
246 int i;
247
248
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2117 if (get_bits_left(gb) < 2+1+5 + 32 + 4 + 43 + 1)
249 return -1;
250
251 2117 ptl->profile_space = get_bits(gb, 2);
252 2117 ptl->tier_flag = get_bits1(gb);
253 2117 ptl->profile_idc = get_bits(gb, 5);
254
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2117 if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN)
255 1765 av_log(avctx, AV_LOG_DEBUG, "Main profile bitstream\n");
256
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352 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_10)
257 164 av_log(avctx, AV_LOG_DEBUG, "Main 10 profile bitstream\n");
258
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188 else if (ptl->profile_idc == FF_PROFILE_HEVC_MAIN_STILL_PICTURE)
259 8 av_log(avctx, AV_LOG_DEBUG, "Main Still Picture profile bitstream\n");
260
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180 else if (ptl->profile_idc == FF_PROFILE_HEVC_REXT)
261 130 av_log(avctx, AV_LOG_DEBUG, "Range Extension profile bitstream\n");
262
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50 else if (ptl->profile_idc == FF_PROFILE_HEVC_SCC)
263 av_log(avctx, AV_LOG_DEBUG, "Screen Content Coding Extension profile bitstream\n");
264 else
265 50 av_log(avctx, AV_LOG_WARNING, "Unknown HEVC profile: %d\n", ptl->profile_idc);
266
267
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69861 for (i = 0; i < 32; i++) {
268 67744 ptl->profile_compatibility_flag[i] = get_bits1(gb);
269
270
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67744 if (ptl->profile_idc == 0 && i > 0 && ptl->profile_compatibility_flag[i])
271 40 ptl->profile_idc = i;
272 }
273 2117 ptl->progressive_source_flag = get_bits1(gb);
274 2117 ptl->interlaced_source_flag = get_bits1(gb);
275 2117 ptl->non_packed_constraint_flag = get_bits1(gb);
276 2117 ptl->frame_only_constraint_flag = get_bits1(gb);
277
278 #define check_profile_idc(idc) \
279 ptl->profile_idc == idc || ptl->profile_compatibility_flag[idc]
280
281
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2117 if (check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(6) ||
282
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1977 check_profile_idc(7) || check_profile_idc(8) || check_profile_idc(9) ||
283
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1977 check_profile_idc(10)) {
284
285 140 ptl->max_12bit_constraint_flag = get_bits1(gb);
286 140 ptl->max_10bit_constraint_flag = get_bits1(gb);
287 140 ptl->max_8bit_constraint_flag = get_bits1(gb);
288 140 ptl->max_422chroma_constraint_flag = get_bits1(gb);
289 140 ptl->max_420chroma_constraint_flag = get_bits1(gb);
290 140 ptl->max_monochrome_constraint_flag = get_bits1(gb);
291 140 ptl->intra_constraint_flag = get_bits1(gb);
292 140 ptl->one_picture_only_constraint_flag = get_bits1(gb);
293 140 ptl->lower_bit_rate_constraint_flag = get_bits1(gb);
294
295
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140 if (check_profile_idc(5) || check_profile_idc(9) || check_profile_idc(10)) {
296 10 ptl->max_14bit_constraint_flag = get_bits1(gb);
297 10 skip_bits_long(gb, 33); // XXX_reserved_zero_33bits[0..32]
298 } else {
299 130 skip_bits_long(gb, 34); // XXX_reserved_zero_34bits[0..33]
300 }
301
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1977 } else if (check_profile_idc(2)) {
302 1665 skip_bits(gb, 7);
303 1665 ptl->one_picture_only_constraint_flag = get_bits1(gb);
304 1665 skip_bits_long(gb, 35); // XXX_reserved_zero_35bits[0..34]
305 } else {
306 312 skip_bits_long(gb, 43); // XXX_reserved_zero_43bits[0..42]
307 }
308
309
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2117 if (check_profile_idc(1) || check_profile_idc(2) || check_profile_idc(3) ||
310
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140 check_profile_idc(4) || check_profile_idc(5) || check_profile_idc(9))
311 2117 ptl->inbld_flag = get_bits1(gb);
312 else
313 skip_bits1(gb);
314 #undef check_profile_idc
315
316 2117 return 0;
317 }
318
319 2065 static int parse_ptl(GetBitContext *gb, AVCodecContext *avctx,
320 PTL *ptl, int max_num_sub_layers)
321 {
322 int i;
323
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4130 if (decode_profile_tier_level(gb, avctx, &ptl->general_ptl) < 0 ||
324
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2065 get_bits_left(gb) < 8 + (8*2 * (max_num_sub_layers - 1 > 0))) {
325 av_log(avctx, AV_LOG_ERROR, "PTL information too short\n");
326 return -1;
327 }
328
329 2065 ptl->general_ptl.level_idc = get_bits(gb, 8);
330
331
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2533 for (i = 0; i < max_num_sub_layers - 1; i++) {
332 468 ptl->sub_layer_profile_present_flag[i] = get_bits1(gb);
333 468 ptl->sub_layer_level_present_flag[i] = get_bits1(gb);
334 }
335
336
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2065 if (max_num_sub_layers - 1> 0)
337
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1656 for (i = max_num_sub_layers - 1; i < 8; i++)
338 1420 skip_bits(gb, 2); // reserved_zero_2bits[i]
339
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2533 for (i = 0; i < max_num_sub_layers - 1; i++) {
340
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520 if (ptl->sub_layer_profile_present_flag[i] &&
341 52 decode_profile_tier_level(gb, avctx, &ptl->sub_layer_ptl[i]) < 0) {
342 av_log(avctx, AV_LOG_ERROR,
343 "PTL information for sublayer %i too short\n", i);
344 return -1;
345 }
346
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468 if (ptl->sub_layer_level_present_flag[i]) {
347
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52 if (get_bits_left(gb) < 8) {
348 av_log(avctx, AV_LOG_ERROR,
349 "Not enough data for sublayer %i level_idc\n", i);
350 return -1;
351 } else
352 52 ptl->sub_layer_ptl[i].level_idc = get_bits(gb, 8);
353 }
354 }
355
356 2065 return 0;
357 }
358
359 97 static void decode_sublayer_hrd(GetBitContext *gb, unsigned int nb_cpb,
360 int subpic_params_present)
361 {
362 int i;
363
364
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194 for (i = 0; i < nb_cpb; i++) {
365 97 get_ue_golomb_long(gb); // bit_rate_value_minus1
366 97 get_ue_golomb_long(gb); // cpb_size_value_minus1
367
368
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97 if (subpic_params_present) {
369 26 get_ue_golomb_long(gb); // cpb_size_du_value_minus1
370 26 get_ue_golomb_long(gb); // bit_rate_du_value_minus1
371 }
372 97 skip_bits1(gb); // cbr_flag
373 }
374 97 }
375
376 51 static int decode_hrd(GetBitContext *gb, int common_inf_present,
377 int max_sublayers)
378 {
379 51 int nal_params_present = 0, vcl_params_present = 0;
380 51 int subpic_params_present = 0;
381 int i;
382
383
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51 if (common_inf_present) {
384 51 nal_params_present = get_bits1(gb);
385 51 vcl_params_present = get_bits1(gb);
386
387
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51 if (nal_params_present || vcl_params_present) {
388 51 subpic_params_present = get_bits1(gb);
389
390
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51 if (subpic_params_present) {
391 13 skip_bits(gb, 8); // tick_divisor_minus2
392 13 skip_bits(gb, 5); // du_cpb_removal_delay_increment_length_minus1
393 13 skip_bits(gb, 1); // sub_pic_cpb_params_in_pic_timing_sei_flag
394 13 skip_bits(gb, 5); // dpb_output_delay_du_length_minus1
395 }
396
397 51 skip_bits(gb, 4); // bit_rate_scale
398 51 skip_bits(gb, 4); // cpb_size_scale
399
400
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51 if (subpic_params_present)
401 13 skip_bits(gb, 4); // cpb_size_du_scale
402
403 51 skip_bits(gb, 5); // initial_cpb_removal_delay_length_minus1
404 51 skip_bits(gb, 5); // au_cpb_removal_delay_length_minus1
405 51 skip_bits(gb, 5); // dpb_output_delay_length_minus1
406 }
407 }
408
409
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102 for (i = 0; i < max_sublayers; i++) {
410 51 int low_delay = 0;
411 51 unsigned int nb_cpb = 1;
412 51 int fixed_rate = get_bits1(gb);
413
414
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51 if (!fixed_rate)
415 23 fixed_rate = get_bits1(gb);
416
417
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51 if (fixed_rate)
418 28 get_ue_golomb_long(gb); // elemental_duration_in_tc_minus1
419 else
420 23 low_delay = get_bits1(gb);
421
422
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51 if (!low_delay) {
423 51 nb_cpb = get_ue_golomb_long(gb) + 1;
424
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51 if (nb_cpb < 1 || nb_cpb > 32) {
425 av_log(NULL, AV_LOG_ERROR, "nb_cpb %d invalid\n", nb_cpb);
426 return AVERROR_INVALIDDATA;
427 }
428 }
429
430
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51 if (nal_params_present)
431 51 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
432
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51 if (vcl_params_present)
433 46 decode_sublayer_hrd(gb, nb_cpb, subpic_params_present);
434 }
435 51 return 0;
436 }
437
438 1036 int ff_hevc_decode_nal_vps(GetBitContext *gb, AVCodecContext *avctx,
439 HEVCParamSets *ps)
440 {
441 int i,j;
442 1036 int vps_id = 0;
443 ptrdiff_t nal_size;
444 HEVCVPS *vps;
445 1036 AVBufferRef *vps_buf = av_buffer_allocz(sizeof(*vps));
446
447
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1036 if (!vps_buf)
448 return AVERROR(ENOMEM);
449 1036 vps = (HEVCVPS*)vps_buf->data;
450
451 1036 av_log(avctx, AV_LOG_DEBUG, "Decoding VPS\n");
452
453 1036 nal_size = gb->buffer_end - gb->buffer;
454
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1036 if (nal_size > sizeof(vps->data)) {
455 av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized VPS "
456 "(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
457 nal_size, sizeof(vps->data));
458 vps->data_size = sizeof(vps->data);
459 } else {
460 1036 vps->data_size = nal_size;
461 }
462 1036 memcpy(vps->data, gb->buffer, vps->data_size);
463
464 1036 vps_id = get_bits(gb, 4);
465
466
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1036 if (get_bits(gb, 2) != 3) { // vps_reserved_three_2bits
467 av_log(avctx, AV_LOG_ERROR, "vps_reserved_three_2bits is not three\n");
468 goto err;
469 }
470
471 1036 vps->vps_max_layers = get_bits(gb, 6) + 1;
472 1036 vps->vps_max_sub_layers = get_bits(gb, 3) + 1;
473 1036 vps->vps_temporal_id_nesting_flag = get_bits1(gb);
474
475
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1036 if (get_bits(gb, 16) != 0xffff) { // vps_reserved_ffff_16bits
476 av_log(avctx, AV_LOG_ERROR, "vps_reserved_ffff_16bits is not 0xffff\n");
477 goto err;
478 }
479
480
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1036 if (vps->vps_max_sub_layers > HEVC_MAX_SUB_LAYERS) {
481 av_log(avctx, AV_LOG_ERROR, "vps_max_sub_layers out of range: %d\n",
482 vps->vps_max_sub_layers);
483 goto err;
484 }
485
486
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1036 if (parse_ptl(gb, avctx, &vps->ptl, vps->vps_max_sub_layers) < 0)
487 goto err;
488
489 1036 vps->vps_sub_layer_ordering_info_present_flag = get_bits1(gb);
490
491
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1036 i = vps->vps_sub_layer_ordering_info_present_flag ? 0 : vps->vps_max_sub_layers - 1;
492
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2219 for (; i < vps->vps_max_sub_layers; i++) {
493 1183 vps->vps_max_dec_pic_buffering[i] = get_ue_golomb_long(gb) + 1;
494 1183 vps->vps_num_reorder_pics[i] = get_ue_golomb_long(gb);
495 1183 vps->vps_max_latency_increase[i] = get_ue_golomb_long(gb) - 1;
496
497
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1183 if (vps->vps_max_dec_pic_buffering[i] > HEVC_MAX_DPB_SIZE || !vps->vps_max_dec_pic_buffering[i]) {
498 av_log(avctx, AV_LOG_ERROR, "vps_max_dec_pic_buffering_minus1 out of range: %d\n",
499 vps->vps_max_dec_pic_buffering[i] - 1);
500 goto err;
501 }
502
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1183 if (vps->vps_num_reorder_pics[i] > vps->vps_max_dec_pic_buffering[i] - 1) {
503 av_log(avctx, AV_LOG_WARNING, "vps_max_num_reorder_pics out of range: %d\n",
504 vps->vps_num_reorder_pics[i]);
505 if (avctx->err_recognition & AV_EF_EXPLODE)
506 goto err;
507 }
508 }
509
510 1036 vps->vps_max_layer_id = get_bits(gb, 6);
511 1036 vps->vps_num_layer_sets = get_ue_golomb_long(gb) + 1;
512
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1036 if (vps->vps_num_layer_sets < 1 || vps->vps_num_layer_sets > 1024 ||
513
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1036 (vps->vps_num_layer_sets - 1LL) * (vps->vps_max_layer_id + 1LL) > get_bits_left(gb)) {
514 av_log(avctx, AV_LOG_ERROR, "too many layer_id_included_flags\n");
515 goto err;
516 }
517
518
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1036 for (i = 1; i < vps->vps_num_layer_sets; i++)
519 for (j = 0; j <= vps->vps_max_layer_id; j++)
520 skip_bits(gb, 1); // layer_id_included_flag[i][j]
521
522 1036 vps->vps_timing_info_present_flag = get_bits1(gb);
523
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1036 if (vps->vps_timing_info_present_flag) {
524 38 vps->vps_num_units_in_tick = get_bits_long(gb, 32);
525 38 vps->vps_time_scale = get_bits_long(gb, 32);
526 38 vps->vps_poc_proportional_to_timing_flag = get_bits1(gb);
527
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38 if (vps->vps_poc_proportional_to_timing_flag)
528 38 vps->vps_num_ticks_poc_diff_one = get_ue_golomb_long(gb) + 1;
529 38 vps->vps_num_hrd_parameters = get_ue_golomb_long(gb);
530
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38 if (vps->vps_num_hrd_parameters > (unsigned)vps->vps_num_layer_sets) {
531 av_log(avctx, AV_LOG_ERROR,
532 "vps_num_hrd_parameters %d is invalid\n", vps->vps_num_hrd_parameters);
533 goto err;
534 }
535
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43 for (i = 0; i < vps->vps_num_hrd_parameters; i++) {
536 5 int common_inf_present = 1;
537
538 5 get_ue_golomb_long(gb); // hrd_layer_set_idx
539
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5 if (i)
540 common_inf_present = get_bits1(gb);
541 5 decode_hrd(gb, common_inf_present, vps->vps_max_sub_layers);
542 }
543 }
544 1036 get_bits1(gb); /* vps_extension_flag */
545
546
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1036 if (get_bits_left(gb) < 0) {
547 av_log(avctx, AV_LOG_ERROR,
548 "Overread VPS by %d bits\n", -get_bits_left(gb));
549 if (ps->vps_list[vps_id])
550 goto err;
551 }
552
553
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1036 if (ps->vps_list[vps_id] &&
554
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445 !memcmp(ps->vps_list[vps_id]->data, vps_buf->data, vps_buf->size)) {
555 442 av_buffer_unref(&vps_buf);
556 } else {
557 594 remove_vps(ps, vps_id);
558 594 ps->vps_list[vps_id] = vps_buf;
559 }
560
561 1036 return 0;
562
563 err:
564 av_buffer_unref(&vps_buf);
565 return AVERROR_INVALIDDATA;
566 }
567
568 253 static void decode_vui(GetBitContext *gb, AVCodecContext *avctx,
569 int apply_defdispwin, HEVCSPS *sps)
570 {
571 253 VUI backup_vui, *vui = &sps->vui;
572 GetBitContext backup;
573 253 int alt = 0;
574
575 253 ff_h2645_decode_common_vui_params(gb, &sps->vui.common, avctx);
576
577
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253 if (vui->common.video_signal_type_present_flag) {
578
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51 if (vui->common.video_full_range_flag && sps->pix_fmt == AV_PIX_FMT_YUV420P)
579 5 sps->pix_fmt = AV_PIX_FMT_YUVJ420P;
580
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51 if (vui->common.colour_description_present_flag) {
581
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46 if (vui->common.matrix_coeffs == AVCOL_SPC_RGB) {
582 switch (sps->pix_fmt) {
583 case AV_PIX_FMT_YUV444P:
584 sps->pix_fmt = AV_PIX_FMT_GBRP;
585 break;
586 case AV_PIX_FMT_YUV444P10:
587 sps->pix_fmt = AV_PIX_FMT_GBRP10;
588 break;
589 case AV_PIX_FMT_YUV444P12:
590 sps->pix_fmt = AV_PIX_FMT_GBRP12;
591 break;
592 }
593 }
594 }
595 }
596
597 253 vui->neutra_chroma_indication_flag = get_bits1(gb);
598 253 vui->field_seq_flag = get_bits1(gb);
599 253 vui->frame_field_info_present_flag = get_bits1(gb);
600
601 // Backup context in case an alternate header is detected
602 253 memcpy(&backup, gb, sizeof(backup));
603 253 memcpy(&backup_vui, vui, sizeof(backup_vui));
604
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253 if (get_bits_left(gb) >= 68 && show_bits(gb, 21) == 0x100000) {
605 vui->default_display_window_flag = 0;
606 av_log(avctx, AV_LOG_WARNING, "Invalid default display window\n");
607 } else
608 253 vui->default_display_window_flag = get_bits1(gb);
609
610
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253 if (vui->default_display_window_flag) {
611 98 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
612 98 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
613 98 vui->def_disp_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
614 98 vui->def_disp_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
615 98 vui->def_disp_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
616 98 vui->def_disp_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
617
618
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98 if (apply_defdispwin &&
619
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44 avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
620 av_log(avctx, AV_LOG_DEBUG,
621 "discarding vui default display window, "
622 "original values are l:%u r:%u t:%u b:%u\n",
623 vui->def_disp_win.left_offset,
624 vui->def_disp_win.right_offset,
625 vui->def_disp_win.top_offset,
626 vui->def_disp_win.bottom_offset);
627
628 vui->def_disp_win.left_offset =
629 vui->def_disp_win.right_offset =
630 vui->def_disp_win.top_offset =
631 vui->def_disp_win.bottom_offset = 0;
632 }
633 }
634
635 253 timing_info:
636 253 vui->vui_timing_info_present_flag = get_bits1(gb);
637
638
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253 if (vui->vui_timing_info_present_flag) {
639
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93 if( get_bits_left(gb) < 66 && !alt) {
640 // The alternate syntax seem to have timing info located
641 // at where def_disp_win is normally located
642 av_log(avctx, AV_LOG_WARNING,
643 "Strange VUI timing information, retrying...\n");
644 memcpy(vui, &backup_vui, sizeof(backup_vui));
645 memcpy(gb, &backup, sizeof(backup));
646 alt = 1;
647 goto timing_info;
648 }
649 93 vui->vui_num_units_in_tick = get_bits_long(gb, 32);
650 93 vui->vui_time_scale = get_bits_long(gb, 32);
651
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93 if (alt) {
652 av_log(avctx, AV_LOG_INFO, "Retry got %"PRIu32"/%"PRIu32" fps\n",
653 vui->vui_time_scale, vui->vui_num_units_in_tick);
654 }
655 93 vui->vui_poc_proportional_to_timing_flag = get_bits1(gb);
656
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93 if (vui->vui_poc_proportional_to_timing_flag)
657 38 vui->vui_num_ticks_poc_diff_one_minus1 = get_ue_golomb_long(gb);
658 93 vui->vui_hrd_parameters_present_flag = get_bits1(gb);
659
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93 if (vui->vui_hrd_parameters_present_flag)
660 46 decode_hrd(gb, 1, sps->max_sub_layers);
661 }
662
663 253 vui->bitstream_restriction_flag = get_bits1(gb);
664
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253 if (vui->bitstream_restriction_flag) {
665
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112 if (get_bits_left(gb) < 8 && !alt) {
666 av_log(avctx, AV_LOG_WARNING,
667 "Strange VUI bitstream restriction information, retrying"
668 " from timing information...\n");
669 memcpy(vui, &backup_vui, sizeof(backup_vui));
670 memcpy(gb, &backup, sizeof(backup));
671 alt = 1;
672 goto timing_info;
673 }
674 112 vui->tiles_fixed_structure_flag = get_bits1(gb);
675 112 vui->motion_vectors_over_pic_boundaries_flag = get_bits1(gb);
676 112 vui->restricted_ref_pic_lists_flag = get_bits1(gb);
677 112 vui->min_spatial_segmentation_idc = get_ue_golomb_long(gb);
678 112 vui->max_bytes_per_pic_denom = get_ue_golomb_long(gb);
679 112 vui->max_bits_per_min_cu_denom = get_ue_golomb_long(gb);
680 112 vui->log2_max_mv_length_horizontal = get_ue_golomb_long(gb);
681 112 vui->log2_max_mv_length_vertical = get_ue_golomb_long(gb);
682 }
683
684
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253 if (get_bits_left(gb) < 1 && !alt) {
685 // XXX: Alternate syntax when sps_range_extension_flag != 0?
686 av_log(avctx, AV_LOG_WARNING,
687 "Overread in VUI, retrying from timing information...\n");
688 memcpy(vui, &backup_vui, sizeof(backup_vui));
689 memcpy(gb, &backup, sizeof(backup));
690 alt = 1;
691 goto timing_info;
692 }
693 253 }
694
695 511 static void set_default_scaling_list_data(ScalingList *sl)
696 {
697 int matrixId;
698
699
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3577 for (matrixId = 0; matrixId < 6; matrixId++) {
700 // 4x4 default is 16
701 3066 memset(sl->sl[0][matrixId], 16, 16);
702 3066 sl->sl_dc[0][matrixId] = 16; // default for 16x16
703 3066 sl->sl_dc[1][matrixId] = 16; // default for 32x32
704 }
705 511 memcpy(sl->sl[1][0], default_scaling_list_intra, 64);
706 511 memcpy(sl->sl[1][1], default_scaling_list_intra, 64);
707 511 memcpy(sl->sl[1][2], default_scaling_list_intra, 64);
708 511 memcpy(sl->sl[1][3], default_scaling_list_inter, 64);
709 511 memcpy(sl->sl[1][4], default_scaling_list_inter, 64);
710 511 memcpy(sl->sl[1][5], default_scaling_list_inter, 64);
711 511 memcpy(sl->sl[2][0], default_scaling_list_intra, 64);
712 511 memcpy(sl->sl[2][1], default_scaling_list_intra, 64);
713 511 memcpy(sl->sl[2][2], default_scaling_list_intra, 64);
714 511 memcpy(sl->sl[2][3], default_scaling_list_inter, 64);
715 511 memcpy(sl->sl[2][4], default_scaling_list_inter, 64);
716 511 memcpy(sl->sl[2][5], default_scaling_list_inter, 64);
717 511 memcpy(sl->sl[3][0], default_scaling_list_intra, 64);
718 511 memcpy(sl->sl[3][1], default_scaling_list_intra, 64);
719 511 memcpy(sl->sl[3][2], default_scaling_list_intra, 64);
720 511 memcpy(sl->sl[3][3], default_scaling_list_inter, 64);
721 511 memcpy(sl->sl[3][4], default_scaling_list_inter, 64);
722 511 memcpy(sl->sl[3][5], default_scaling_list_inter, 64);
723 511 }
724
725 495 static int scaling_list_data(GetBitContext *gb, AVCodecContext *avctx, ScalingList *sl, HEVCSPS *sps)
726 {
727 uint8_t scaling_list_pred_mode_flag;
728 uint8_t scaling_list_dc_coef[2][6];
729 int size_id, matrix_id, pos;
730 int i;
731
732
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2475 for (size_id = 0; size_id < 4; size_id++)
733
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11880 for (matrix_id = 0; matrix_id < 6; matrix_id += ((size_id == 3) ? 3 : 1)) {
734 9900 scaling_list_pred_mode_flag = get_bits1(gb);
735
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9900 if (!scaling_list_pred_mode_flag) {
736 3978 unsigned int delta = get_ue_golomb_long(gb);
737 /* Only need to handle non-zero delta. Zero means default,
738 * which should already be in the arrays. */
739
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3978 if (delta) {
740 // Copy from previous array.
741
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3852 delta *= (size_id == 3) ? 3 : 1;
742
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3852 if (matrix_id < delta) {
743 av_log(avctx, AV_LOG_ERROR,
744 "Invalid delta in scaling list data: %d.\n", delta);
745 return AVERROR_INVALIDDATA;
746 }
747
748
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3852 memcpy(sl->sl[size_id][matrix_id],
749 3852 sl->sl[size_id][matrix_id - delta],
750 size_id > 0 ? 64 : 16);
751
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3852 if (size_id > 1)
752 530 sl->sl_dc[size_id - 2][matrix_id] = sl->sl_dc[size_id - 2][matrix_id - delta];
753 }
754 } else {
755 int next_coef, coef_num;
756 int32_t scaling_list_delta_coef;
757
758 5922 next_coef = 8;
759 5922 coef_num = FFMIN(64, 1 << (4 + (size_id << 1)));
760
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5922 if (size_id > 1) {
761 3388 int scaling_list_coeff_minus8 = get_se_golomb(gb);
762
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3388 if (scaling_list_coeff_minus8 < -7 ||
763 scaling_list_coeff_minus8 > 247)
764 return AVERROR_INVALIDDATA;
765 3388 scaling_list_dc_coef[size_id - 2][matrix_id] = scaling_list_coeff_minus8 + 8;
766 3388 next_coef = scaling_list_dc_coef[size_id - 2][matrix_id];
767 3388 sl->sl_dc[size_id - 2][matrix_id] = next_coef;
768 }
769
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321186 for (i = 0; i < coef_num; i++) {
770
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315264 if (size_id == 0)
771 21248 pos = 4 * ff_hevc_diag_scan4x4_y[i] +
772 21248 ff_hevc_diag_scan4x4_x[i];
773 else
774 294016 pos = 8 * ff_hevc_diag_scan8x8_y[i] +
775 294016 ff_hevc_diag_scan8x8_x[i];
776
777 315264 scaling_list_delta_coef = get_se_golomb(gb);
778 315264 next_coef = (next_coef + 256U + scaling_list_delta_coef) % 256;
779 315264 sl->sl[size_id][matrix_id][pos] = next_coef;
780 }
781 }
782 }
783
784
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495 if (sps->chroma_format_idc == 3) {
785
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2795 for (i = 0; i < 64; i++) {
786 2752 sl->sl[3][1][i] = sl->sl[2][1][i];
787 2752 sl->sl[3][2][i] = sl->sl[2][2][i];
788 2752 sl->sl[3][4][i] = sl->sl[2][4][i];
789 2752 sl->sl[3][5][i] = sl->sl[2][5][i];
790 }
791 43 sl->sl_dc[1][1] = sl->sl_dc[0][1];
792 43 sl->sl_dc[1][2] = sl->sl_dc[0][2];
793 43 sl->sl_dc[1][4] = sl->sl_dc[0][4];
794 43 sl->sl_dc[1][5] = sl->sl_dc[0][5];
795 }
796
797
798 495 return 0;
799 }
800
801 1029 static int map_pixel_format(AVCodecContext *avctx, HEVCSPS *sps)
802 {
803 const AVPixFmtDescriptor *desc;
804
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1029 switch (sps->bit_depth) {
805 895 case 8:
806
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895 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY8;
807
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895 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P;
808
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895 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P;
809
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895 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P;
810 895 break;
811 case 9:
812 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY9;
813 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P9;
814 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P9;
815 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P9;
816 break;
817 111 case 10:
818
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111 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY10;
819
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111 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P10;
820
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111 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P10;
821
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111 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P10;
822 111 break;
823 23 case 12:
824
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23 if (sps->chroma_format_idc == 0) sps->pix_fmt = AV_PIX_FMT_GRAY12;
825
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23 if (sps->chroma_format_idc == 1) sps->pix_fmt = AV_PIX_FMT_YUV420P12;
826
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23 if (sps->chroma_format_idc == 2) sps->pix_fmt = AV_PIX_FMT_YUV422P12;
827
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23 if (sps->chroma_format_idc == 3) sps->pix_fmt = AV_PIX_FMT_YUV444P12;
828 23 break;
829 default:
830 av_log(avctx, AV_LOG_ERROR,
831 "The following bit-depths are currently specified: 8, 9, 10 and 12 bits, "
832 "chroma_format_idc is %d, depth is %d\n",
833 sps->chroma_format_idc, sps->bit_depth);
834 return AVERROR_INVALIDDATA;
835 }
836
837 1029 desc = av_pix_fmt_desc_get(sps->pix_fmt);
838
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1029 if (!desc)
839 return AVERROR(EINVAL);
840
841 1029 sps->hshift[0] = sps->vshift[0] = 0;
842 1029 sps->hshift[2] = sps->hshift[1] = desc->log2_chroma_w;
843 1029 sps->vshift[2] = sps->vshift[1] = desc->log2_chroma_h;
844
845 1029 sps->pixel_shift = sps->bit_depth > 8;
846
847 1029 return 0;
848 }
849
850 1029 int ff_hevc_parse_sps(HEVCSPS *sps, GetBitContext *gb, unsigned int *sps_id,
851 int apply_defdispwin, AVBufferRef **vps_list, AVCodecContext *avctx)
852 {
853 HEVCWindow *ow;
854 1029 int ret = 0;
855 int log2_diff_max_min_transform_block_size;
856 int bit_depth_chroma, start, vui_present, sublayer_ordering_info, num_comps;
857 int i;
858
859 // Coded parameters
860
861 1029 sps->vps_id = get_bits(gb, 4);
862
863
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1029 if (vps_list && !vps_list[sps->vps_id]) {
864 av_log(avctx, AV_LOG_ERROR, "VPS %d does not exist\n",
865 sps->vps_id);
866 return AVERROR_INVALIDDATA;
867 }
868
869 1029 sps->max_sub_layers = get_bits(gb, 3) + 1;
870
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1029 if (sps->max_sub_layers > HEVC_MAX_SUB_LAYERS) {
871 av_log(avctx, AV_LOG_ERROR, "sps_max_sub_layers out of range: %d\n",
872 sps->max_sub_layers);
873 return AVERROR_INVALIDDATA;
874 }
875
876 1029 sps->temporal_id_nesting_flag = get_bits(gb, 1);
877
878
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1029 if ((ret = parse_ptl(gb, avctx, &sps->ptl, sps->max_sub_layers)) < 0)
879 return ret;
880
881 1029 *sps_id = get_ue_golomb_long(gb);
882
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1029 if (*sps_id >= HEVC_MAX_SPS_COUNT) {
883 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", *sps_id);
884 return AVERROR_INVALIDDATA;
885 }
886
887 1029 sps->chroma_format_idc = get_ue_golomb_long(gb);
888
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1029 if (sps->chroma_format_idc > 3U) {
889 av_log(avctx, AV_LOG_ERROR, "chroma_format_idc %d is invalid\n", sps->chroma_format_idc);
890 return AVERROR_INVALIDDATA;
891 }
892
893
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1029 if (sps->chroma_format_idc == 3)
894 32 sps->separate_colour_plane_flag = get_bits1(gb);
895
896
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1029 if (sps->separate_colour_plane_flag)
897 sps->chroma_format_idc = 0;
898
899 1029 sps->width = get_ue_golomb_long(gb);
900 1029 sps->height = get_ue_golomb_long(gb);
901
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1029 if ((ret = av_image_check_size(sps->width,
902 1029 sps->height, 0, avctx)) < 0)
903 return ret;
904
905
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1029 if (get_bits1(gb)) { // pic_conformance_flag
906 846 int vert_mult = hevc_sub_height_c[sps->chroma_format_idc];
907 846 int horiz_mult = hevc_sub_width_c[sps->chroma_format_idc];
908 846 sps->pic_conf_win.left_offset = get_ue_golomb_long(gb) * horiz_mult;
909 846 sps->pic_conf_win.right_offset = get_ue_golomb_long(gb) * horiz_mult;
910 846 sps->pic_conf_win.top_offset = get_ue_golomb_long(gb) * vert_mult;
911 846 sps->pic_conf_win.bottom_offset = get_ue_golomb_long(gb) * vert_mult;
912
913
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846 if (avctx->flags2 & AV_CODEC_FLAG2_IGNORE_CROP) {
914 av_log(avctx, AV_LOG_DEBUG,
915 "discarding sps conformance window, "
916 "original values are l:%u r:%u t:%u b:%u\n",
917 sps->pic_conf_win.left_offset,
918 sps->pic_conf_win.right_offset,
919 sps->pic_conf_win.top_offset,
920 sps->pic_conf_win.bottom_offset);
921
922 sps->pic_conf_win.left_offset =
923 sps->pic_conf_win.right_offset =
924 sps->pic_conf_win.top_offset =
925 sps->pic_conf_win.bottom_offset = 0;
926 }
927 846 sps->output_window = sps->pic_conf_win;
928 }
929
930 1029 sps->bit_depth = get_ue_golomb_long(gb) + 8;
931 1029 bit_depth_chroma = get_ue_golomb_long(gb) + 8;
932
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1029 if (sps->chroma_format_idc && bit_depth_chroma != sps->bit_depth) {
933 av_log(avctx, AV_LOG_ERROR,
934 "Luma bit depth (%d) is different from chroma bit depth (%d), "
935 "this is unsupported.\n",
936 sps->bit_depth, bit_depth_chroma);
937 return AVERROR_INVALIDDATA;
938 }
939 1029 sps->bit_depth_chroma = bit_depth_chroma;
940
941 1029 ret = map_pixel_format(avctx, sps);
942
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1029 if (ret < 0)
943 return ret;
944
945 1029 sps->log2_max_poc_lsb = get_ue_golomb_long(gb) + 4;
946
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1029 if (sps->log2_max_poc_lsb > 16) {
947 av_log(avctx, AV_LOG_ERROR, "log2_max_pic_order_cnt_lsb_minus4 out range: %d\n",
948 sps->log2_max_poc_lsb - 4);
949 return AVERROR_INVALIDDATA;
950 }
951
952 1029 sublayer_ordering_info = get_bits1(gb);
953
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1029 start = sublayer_ordering_info ? 0 : sps->max_sub_layers - 1;
954
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2205 for (i = start; i < sps->max_sub_layers; i++) {
955 1176 sps->temporal_layer[i].max_dec_pic_buffering = get_ue_golomb_long(gb) + 1;
956 1176 sps->temporal_layer[i].num_reorder_pics = get_ue_golomb_long(gb);
957 1176 sps->temporal_layer[i].max_latency_increase = get_ue_golomb_long(gb) - 1;
958
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1176 if (sps->temporal_layer[i].max_dec_pic_buffering > (unsigned)HEVC_MAX_DPB_SIZE) {
959 av_log(avctx, AV_LOG_ERROR, "sps_max_dec_pic_buffering_minus1 out of range: %d\n",
960 sps->temporal_layer[i].max_dec_pic_buffering - 1U);
961 return AVERROR_INVALIDDATA;
962 }
963
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1176 if (sps->temporal_layer[i].num_reorder_pics > sps->temporal_layer[i].max_dec_pic_buffering - 1) {
964 av_log(avctx, AV_LOG_WARNING, "sps_max_num_reorder_pics out of range: %d\n",
965 sps->temporal_layer[i].num_reorder_pics);
966 if (avctx->err_recognition & AV_EF_EXPLODE ||
967 sps->temporal_layer[i].num_reorder_pics > HEVC_MAX_DPB_SIZE - 1) {
968 return AVERROR_INVALIDDATA;
969 }
970 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[i].num_reorder_pics + 1;
971 }
972 }
973
974
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1029 if (!sublayer_ordering_info) {
975
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229 for (i = 0; i < start; i++) {
976 82 sps->temporal_layer[i].max_dec_pic_buffering = sps->temporal_layer[start].max_dec_pic_buffering;
977 82 sps->temporal_layer[i].num_reorder_pics = sps->temporal_layer[start].num_reorder_pics;
978 82 sps->temporal_layer[i].max_latency_increase = sps->temporal_layer[start].max_latency_increase;
979 }
980 }
981
982 1029 sps->log2_min_cb_size = get_ue_golomb_long(gb) + 3;
983 1029 sps->log2_diff_max_min_coding_block_size = get_ue_golomb_long(gb);
984 1029 sps->log2_min_tb_size = get_ue_golomb_long(gb) + 2;
985 1029 log2_diff_max_min_transform_block_size = get_ue_golomb_long(gb);
986 1029 sps->log2_max_trafo_size = log2_diff_max_min_transform_block_size +
987 1029 sps->log2_min_tb_size;
988
989
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1029 if (sps->log2_min_cb_size < 3 || sps->log2_min_cb_size > 30) {
990 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_min_cb_size", sps->log2_min_cb_size);
991 return AVERROR_INVALIDDATA;
992 }
993
994
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1029 if (sps->log2_diff_max_min_coding_block_size > 30) {
995 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);
996 return AVERROR_INVALIDDATA;
997 }
998
999
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1029 if (sps->log2_min_tb_size >= sps->log2_min_cb_size || sps->log2_min_tb_size < 2) {
1000 av_log(avctx, AV_LOG_ERROR, "Invalid value for log2_min_tb_size");
1001 return AVERROR_INVALIDDATA;
1002 }
1003
1004
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1029 if (log2_diff_max_min_transform_block_size < 0 || log2_diff_max_min_transform_block_size > 30) {
1005 av_log(avctx, AV_LOG_ERROR, "Invalid value %d for log2_diff_max_min_transform_block_size", log2_diff_max_min_transform_block_size);
1006 return AVERROR_INVALIDDATA;
1007 }
1008
1009 1029 sps->max_transform_hierarchy_depth_inter = get_ue_golomb_long(gb);
1010 1029 sps->max_transform_hierarchy_depth_intra = get_ue_golomb_long(gb);
1011
1012 1029 sps->scaling_list_enable_flag = get_bits1(gb);
1013
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1029 if (sps->scaling_list_enable_flag) {
1014 42 set_default_scaling_list_data(&sps->scaling_list);
1015
1016
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42 if (get_bits1(gb)) {
1017 26 ret = scaling_list_data(gb, avctx, &sps->scaling_list, sps);
1018
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26 if (ret < 0)
1019 return ret;
1020 }
1021 }
1022
1023 1029 sps->amp_enabled_flag = get_bits1(gb);
1024 1029 sps->sao_enabled = get_bits1(gb);
1025
1026 1029 sps->pcm_enabled_flag = get_bits1(gb);
1027
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1029 if (sps->pcm_enabled_flag) {
1028 75 sps->pcm.bit_depth = get_bits(gb, 4) + 1;
1029 75 sps->pcm.bit_depth_chroma = get_bits(gb, 4) + 1;
1030 75 sps->pcm.log2_min_pcm_cb_size = get_ue_golomb_long(gb) + 3;
1031 150 sps->pcm.log2_max_pcm_cb_size = sps->pcm.log2_min_pcm_cb_size +
1032 75 get_ue_golomb_long(gb);
1033
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75 if (FFMAX(sps->pcm.bit_depth, sps->pcm.bit_depth_chroma) > sps->bit_depth) {
1034 av_log(avctx, AV_LOG_ERROR,
1035 "PCM bit depth (%d, %d) is greater than normal bit depth (%d)\n",
1036 sps->pcm.bit_depth, sps->pcm.bit_depth_chroma, sps->bit_depth);
1037 return AVERROR_INVALIDDATA;
1038 }
1039
1040 75 sps->pcm.loop_filter_disable_flag = get_bits1(gb);
1041 }
1042
1043 1029 sps->nb_st_rps = get_ue_golomb_long(gb);
1044
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1029 if (sps->nb_st_rps > HEVC_MAX_SHORT_TERM_REF_PIC_SETS) {
1045 av_log(avctx, AV_LOG_ERROR, "Too many short term RPS: %d.\n",
1046 sps->nb_st_rps);
1047 return AVERROR_INVALIDDATA;
1048 }
1049
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10144 for (i = 0; i < sps->nb_st_rps; i++) {
1050
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9115 if ((ret = ff_hevc_decode_short_term_rps(gb, avctx, &sps->st_rps[i],
1051 sps, 0)) < 0)
1052 return ret;
1053 }
1054
1055 1029 sps->long_term_ref_pics_present_flag = get_bits1(gb);
1056
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1029 if (sps->long_term_ref_pics_present_flag) {
1057 101 sps->num_long_term_ref_pics_sps = get_ue_golomb_long(gb);
1058
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101 if (sps->num_long_term_ref_pics_sps > HEVC_MAX_LONG_TERM_REF_PICS) {
1059 av_log(avctx, AV_LOG_ERROR, "Too many long term ref pics: %d.\n",
1060 sps->num_long_term_ref_pics_sps);
1061 return AVERROR_INVALIDDATA;
1062 }
1063
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165 for (i = 0; i < sps->num_long_term_ref_pics_sps; i++) {
1064 64 sps->lt_ref_pic_poc_lsb_sps[i] = get_bits(gb, sps->log2_max_poc_lsb);
1065 64 sps->used_by_curr_pic_lt_sps_flag[i] = get_bits1(gb);
1066 }
1067 }
1068
1069 1029 sps->sps_temporal_mvp_enabled_flag = get_bits1(gb);
1070 1029 sps->sps_strong_intra_smoothing_enable_flag = get_bits1(gb);
1071 1029 sps->vui.common.sar = (AVRational){0, 1};
1072 1029 vui_present = get_bits1(gb);
1073
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1029 if (vui_present)
1074 253 decode_vui(gb, avctx, apply_defdispwin, sps);
1075
1076
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1029 if (get_bits1(gb)) { // sps_extension_flag
1077 76 sps->sps_range_extension_flag = get_bits1(gb);
1078 76 sps->sps_multilayer_extension_flag = get_bits1(gb);
1079 76 sps->sps_3d_extension_flag = get_bits1(gb);
1080 76 sps->sps_scc_extension_flag = get_bits1(gb);
1081 76 skip_bits(gb, 4); // sps_extension_4bits
1082
1083
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76 if (sps->sps_range_extension_flag) {
1084 56 sps->transform_skip_rotation_enabled_flag = get_bits1(gb);
1085 56 sps->transform_skip_context_enabled_flag = get_bits1(gb);
1086 56 sps->implicit_rdpcm_enabled_flag = get_bits1(gb);
1087
1088 56 sps->explicit_rdpcm_enabled_flag = get_bits1(gb);
1089
1090 56 sps->extended_precision_processing_flag = get_bits1(gb);
1091
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56 if (sps->extended_precision_processing_flag)
1092 av_log(avctx, AV_LOG_WARNING,
1093 "extended_precision_processing_flag not yet implemented\n");
1094
1095 56 sps->intra_smoothing_disabled_flag = get_bits1(gb);
1096 56 sps->high_precision_offsets_enabled_flag = get_bits1(gb);
1097
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56 if (sps->high_precision_offsets_enabled_flag)
1098 38 av_log(avctx, AV_LOG_WARNING,
1099 "high_precision_offsets_enabled_flag not yet implemented\n");
1100
1101 56 sps->persistent_rice_adaptation_enabled_flag = get_bits1(gb);
1102
1103 56 sps->cabac_bypass_alignment_enabled_flag = get_bits1(gb);
1104
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56 if (sps->cabac_bypass_alignment_enabled_flag)
1105 av_log(avctx, AV_LOG_WARNING,
1106 "cabac_bypass_alignment_enabled_flag not yet implemented\n");
1107 }
1108
1109
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76 if (sps->sps_multilayer_extension_flag) {
1110 skip_bits1(gb); // inter_view_mv_vert_constraint_flag
1111 av_log(avctx, AV_LOG_WARNING,
1112 "sps_multilayer_extension_flag not yet implemented\n");
1113 }
1114
1115
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76 if (sps->sps_3d_extension_flag) {
1116 for (i = 0; i <= 1; i++) {
1117 skip_bits1(gb); // iv_di_mc_enabled_flag
1118 skip_bits1(gb); // iv_mv_scal_enabled_flag
1119 if (i == 0) {
1120 get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
1121 skip_bits1(gb); // iv_res_pred_enabled_flag
1122 skip_bits1(gb); // depth_ref_enabled_flag
1123 skip_bits1(gb); // vsp_mc_enabled_flag
1124 skip_bits1(gb); // dbbp_enabled_flag
1125 } else {
1126 skip_bits1(gb); // tex_mc_enabled_flag
1127 get_ue_golomb_long(gb); // log2_ivmc_sub_pb_size_minus3
1128 skip_bits1(gb); // intra_contour_enabled_flag
1129 skip_bits1(gb); // intra_dc_only_wedge_enabled_flag
1130 skip_bits1(gb); // cqt_cu_part_pred_enabled_flag
1131 skip_bits1(gb); // inter_dc_only_enabled_flag
1132 skip_bits1(gb); // skip_intra_enabled_flag
1133 }
1134 }
1135 av_log(avctx, AV_LOG_WARNING,
1136 "sps_3d_extension_flag not yet implemented\n");
1137 }
1138
1139
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76 if (sps->sps_scc_extension_flag) {
1140 sps->sps_curr_pic_ref_enabled_flag = get_bits1(gb);
1141 sps->palette_mode_enabled_flag = get_bits1(gb);
1142 if (sps->palette_mode_enabled_flag) {
1143 sps->palette_max_size = get_ue_golomb_long(gb);
1144 sps->delta_palette_max_predictor_size = get_ue_golomb_long(gb);
1145 sps->sps_palette_predictor_initializers_present_flag = get_bits1(gb);
1146
1147 if (sps->sps_palette_predictor_initializers_present_flag) {
1148 sps->sps_num_palette_predictor_initializers_minus1 = get_ue_golomb_long(gb);
1149 num_comps = !sps->chroma_format_idc ? 1 : 3;
1150 for (int comp = 0; comp < num_comps; comp++)
1151 for (i = 0; i <= sps->sps_num_palette_predictor_initializers_minus1; i++)
1152 sps->sps_palette_predictor_initializer[comp][i] =
1153 get_bits(gb, !comp ? sps->bit_depth : sps->bit_depth_chroma);
1154 }
1155 }
1156 sps->motion_vector_resolution_control_idc = get_bits(gb, 2);
1157 sps->intra_boundary_filtering_disabled_flag = get_bits1(gb);
1158 }
1159 }
1160
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1029 if (apply_defdispwin) {
1161 421 sps->output_window.left_offset += sps->vui.def_disp_win.left_offset;
1162 421 sps->output_window.right_offset += sps->vui.def_disp_win.right_offset;
1163 421 sps->output_window.top_offset += sps->vui.def_disp_win.top_offset;
1164 421 sps->output_window.bottom_offset += sps->vui.def_disp_win.bottom_offset;
1165 }
1166
1167 1029 ow = &sps->output_window;
1168
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1029 if (ow->left_offset >= INT_MAX - ow->right_offset ||
1169
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1029 ow->top_offset >= INT_MAX - ow->bottom_offset ||
1170
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1029 ow->left_offset + ow->right_offset >= sps->width ||
1171
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1029 ow->top_offset + ow->bottom_offset >= sps->height) {
1172 av_log(avctx, AV_LOG_WARNING, "Invalid cropping offsets: %u/%u/%u/%u\n",
1173 ow->left_offset, ow->right_offset, ow->top_offset, ow->bottom_offset);
1174 if (avctx->err_recognition & AV_EF_EXPLODE) {
1175 return AVERROR_INVALIDDATA;
1176 }
1177 av_log(avctx, AV_LOG_WARNING,
1178 "Displaying the whole video surface.\n");
1179 memset(ow, 0, sizeof(*ow));
1180 memset(&sps->pic_conf_win, 0, sizeof(sps->pic_conf_win));
1181 }
1182
1183 // Inferred parameters
1184 1029 sps->log2_ctb_size = sps->log2_min_cb_size +
1185 1029 sps->log2_diff_max_min_coding_block_size;
1186 1029 sps->log2_min_pu_size = sps->log2_min_cb_size - 1;
1187
1188
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1029 if (sps->log2_ctb_size > HEVC_MAX_LOG2_CTB_SIZE) {
1189 av_log(avctx, AV_LOG_ERROR, "CTB size out of range: 2^%d\n", sps->log2_ctb_size);
1190 return AVERROR_INVALIDDATA;
1191 }
1192
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1029 if (sps->log2_ctb_size < 4) {
1193 av_log(avctx,
1194 AV_LOG_ERROR,
1195 "log2_ctb_size %d differs from the bounds of any known profile\n",
1196 sps->log2_ctb_size);
1197 avpriv_request_sample(avctx, "log2_ctb_size %d", sps->log2_ctb_size);
1198 return AVERROR_INVALIDDATA;
1199 }
1200
1201 1029 sps->ctb_width = (sps->width + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1202 1029 sps->ctb_height = (sps->height + (1 << sps->log2_ctb_size) - 1) >> sps->log2_ctb_size;
1203 1029 sps->ctb_size = sps->ctb_width * sps->ctb_height;
1204
1205 1029 sps->min_cb_width = sps->width >> sps->log2_min_cb_size;
1206 1029 sps->min_cb_height = sps->height >> sps->log2_min_cb_size;
1207 1029 sps->min_tb_width = sps->width >> sps->log2_min_tb_size;
1208 1029 sps->min_tb_height = sps->height >> sps->log2_min_tb_size;
1209 1029 sps->min_pu_width = sps->width >> sps->log2_min_pu_size;
1210 1029 sps->min_pu_height = sps->height >> sps->log2_min_pu_size;
1211 1029 sps->tb_mask = (1 << (sps->log2_ctb_size - sps->log2_min_tb_size)) - 1;
1212
1213 1029 sps->qp_bd_offset = 6 * (sps->bit_depth - 8);
1214
1215
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1029 if (av_mod_uintp2(sps->width, sps->log2_min_cb_size) ||
1216
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1029 av_mod_uintp2(sps->height, sps->log2_min_cb_size)) {
1217 av_log(avctx, AV_LOG_ERROR, "Invalid coded frame dimensions.\n");
1218 return AVERROR_INVALIDDATA;
1219 }
1220
1221
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1029 if (sps->max_transform_hierarchy_depth_inter > sps->log2_ctb_size - sps->log2_min_tb_size) {
1222 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_inter out of range: %d\n",
1223 sps->max_transform_hierarchy_depth_inter);
1224 return AVERROR_INVALIDDATA;
1225 }
1226
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1029 if (sps->max_transform_hierarchy_depth_intra > sps->log2_ctb_size - sps->log2_min_tb_size) {
1227 av_log(avctx, AV_LOG_ERROR, "max_transform_hierarchy_depth_intra out of range: %d\n",
1228 sps->max_transform_hierarchy_depth_intra);
1229 return AVERROR_INVALIDDATA;
1230 }
1231
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1029 if (sps->log2_max_trafo_size > FFMIN(sps->log2_ctb_size, 5)) {
1232 av_log(avctx, AV_LOG_ERROR,
1233 "max transform block size out of range: %d\n",
1234 sps->log2_max_trafo_size);
1235 return AVERROR_INVALIDDATA;
1236 }
1237
1238
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1029 if (get_bits_left(gb) < 0) {
1239 av_log(avctx, AV_LOG_ERROR,
1240 "Overread SPS by %d bits\n", -get_bits_left(gb));
1241 return AVERROR_INVALIDDATA;
1242 }
1243
1244 1029 return 0;
1245 }
1246
1247 1029 int ff_hevc_decode_nal_sps(GetBitContext *gb, AVCodecContext *avctx,
1248 HEVCParamSets *ps, int apply_defdispwin)
1249 {
1250 HEVCSPS *sps;
1251 1029 AVBufferRef *sps_buf = av_buffer_allocz(sizeof(*sps));
1252 unsigned int sps_id;
1253 int ret;
1254 ptrdiff_t nal_size;
1255
1256
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1029 if (!sps_buf)
1257 return AVERROR(ENOMEM);
1258 1029 sps = (HEVCSPS*)sps_buf->data;
1259
1260 1029 av_log(avctx, AV_LOG_DEBUG, "Decoding SPS\n");
1261
1262 1029 nal_size = gb->buffer_end - gb->buffer;
1263
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1029 if (nal_size > sizeof(sps->data)) {
1264 av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized SPS "
1265 "(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
1266 nal_size, sizeof(sps->data));
1267 sps->data_size = sizeof(sps->data);
1268 } else {
1269 1029 sps->data_size = nal_size;
1270 }
1271 1029 memcpy(sps->data, gb->buffer, sps->data_size);
1272
1273 1029 ret = ff_hevc_parse_sps(sps, gb, &sps_id,
1274 apply_defdispwin,
1275 1029 ps->vps_list, avctx);
1276
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1029 if (ret < 0) {
1277 av_buffer_unref(&sps_buf);
1278 return ret;
1279 }
1280
1281
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1029 if (avctx->debug & FF_DEBUG_BITSTREAM) {
1282 av_log(avctx, AV_LOG_DEBUG,
1283 "Parsed SPS: id %d; coded wxh: %dx%d; "
1284 "cropped wxh: %dx%d; pix_fmt: %s.\n",
1285 sps_id, sps->width, sps->height,
1286 sps->width - (sps->output_window.left_offset + sps->output_window.right_offset),
1287 sps->height - (sps->output_window.top_offset + sps->output_window.bottom_offset),
1288 av_get_pix_fmt_name(sps->pix_fmt));
1289 }
1290
1291 /* check if this is a repeat of an already parsed SPS, then keep the
1292 * original one.
1293 * otherwise drop all PPSes that depend on it */
1294
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1029 if (ps->sps_list[sps_id] &&
1295
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433 !memcmp(ps->sps_list[sps_id]->data, sps_buf->data, sps_buf->size)) {
1296 425 av_buffer_unref(&sps_buf);
1297 } else {
1298 604 remove_sps(ps, sps_id);
1299 604 ps->sps_list[sps_id] = sps_buf;
1300 }
1301
1302 1029 return 0;
1303 }
1304
1305 3250 static void hevc_pps_free(void *opaque, uint8_t *data)
1306 {
1307 3250 HEVCPPS *pps = (HEVCPPS*)data;
1308
1309 3250 av_freep(&pps->column_width);
1310 3250 av_freep(&pps->row_height);
1311 3250 av_freep(&pps->col_bd);
1312 3250 av_freep(&pps->row_bd);
1313 3250 av_freep(&pps->col_idxX);
1314 3250 av_freep(&pps->ctb_addr_rs_to_ts);
1315 3250 av_freep(&pps->ctb_addr_ts_to_rs);
1316 3250 av_freep(&pps->tile_pos_rs);
1317 3250 av_freep(&pps->tile_id);
1318 3250 av_freep(&pps->min_tb_addr_zs_tab);
1319
1320 3250 av_freep(&pps);
1321 3250 }
1322
1323 5 static void colour_mapping_octants(GetBitContext *gb, HEVCPPS *pps, int inp_depth,
1324 int idx_y, int idx_cb, int idx_cr, int inp_length)
1325 {
1326 unsigned int split_octant_flag, part_num_y, coded_res_flag, res_coeff_q, res_coeff_r;
1327 int bit_depth_cm_input_y, bit_depth_cm_output_y, cm_res_bits;
1328
1329 5 part_num_y = 1 << pps->cm_y_part_num_log2;
1330
1331
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5 split_octant_flag = inp_depth < pps->cm_octant_depth ? get_bits1(gb) : 0;
1332
1333
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5 if (split_octant_flag)
1334 for (int k = 0; k < 2; k++)
1335 for (int m = 0; m < 2; m++)
1336 for (int n = 0; n < 2; n++)
1337 colour_mapping_octants(gb, pps, inp_depth + 1,
1338 idx_y + part_num_y * k * inp_length / 2,
1339 idx_cb + m * inp_length / 2,
1340 idx_cr + n * inp_length / 2,
1341 inp_length / 2);
1342 else
1343
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45 for (int i = 0; i < part_num_y; i++) {
1344
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200 for (int j = 0; j < 4; j++) {
1345 160 coded_res_flag = get_bits1(gb);
1346
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160 if (coded_res_flag)
1347 for (int c = 0; c < 3; c++) {
1348 res_coeff_q = get_ue_golomb_long(gb);
1349 bit_depth_cm_input_y = 8 + pps->luma_bit_depth_cm_input_minus8;
1350 bit_depth_cm_output_y = 8 + pps->luma_bit_depth_cm_output_minus8;
1351 cm_res_bits = FFMAX(0, 10 + bit_depth_cm_input_y - bit_depth_cm_output_y -
1352 pps->cm_res_quant_bits - (pps->cm_delta_flc_bits_minus1 + 1));
1353 res_coeff_r = cm_res_bits ? get_bits(gb, cm_res_bits) : 0;
1354 if (res_coeff_q || res_coeff_r)
1355 skip_bits1(gb);
1356 }
1357 }
1358 }
1359 5 }
1360
1361 5 static void colour_mapping_table(GetBitContext *gb, HEVCPPS *pps)
1362 {
1363 5 pps->num_cm_ref_layers_minus1 = get_ue_golomb_long(gb);
1364
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20 for (int i = 0; i <= pps->num_cm_ref_layers_minus1; i++)
1365 15 pps->cm_ref_layer_id[i] = get_bits(gb, 6);
1366
1367 5 pps->cm_octant_depth = get_bits(gb, 2);
1368 5 pps->cm_y_part_num_log2 = get_bits(gb, 2);
1369
1370 5 pps->luma_bit_depth_cm_input_minus8 = get_ue_golomb_long(gb);
1371 5 pps->chroma_bit_depth_cm_input_minus8 = get_ue_golomb_long(gb);
1372 5 pps->luma_bit_depth_cm_output_minus8 = get_ue_golomb_long(gb);
1373 5 pps->chroma_bit_depth_cm_output_minus8 = get_ue_golomb_long(gb);
1374
1375 5 pps->cm_res_quant_bits = get_bits(gb, 2);
1376 5 pps->cm_delta_flc_bits_minus1 = get_bits(gb, 2);
1377
1378
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5 if (pps->cm_octant_depth == 1) {
1379 pps->cm_adapt_threshold_u_delta = get_se_golomb_long(gb);
1380 pps->cm_adapt_threshold_v_delta = get_se_golomb_long(gb);
1381 }
1382
1383 5 colour_mapping_octants(gb, pps, 0, 0, 0, 0, 1 << pps->cm_octant_depth);
1384 5 }
1385
1386 5 static int pps_multilayer_extension(GetBitContext *gb, AVCodecContext *avctx,
1387 HEVCPPS *pps, HEVCSPS *sps)
1388 {
1389 5 pps->poc_reset_info_present_flag = get_bits1(gb);
1390 5 pps->pps_infer_scaling_list_flag = get_bits1(gb);
1391
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5 if (pps->pps_infer_scaling_list_flag)
1392 pps->pps_scaling_list_ref_layer_id = get_bits(gb, 6);
1393
1394 5 pps->num_ref_loc_offsets = get_ue_golomb_long(gb);
1395
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5 for (int i = 0; i < pps->num_ref_loc_offsets; i++) {
1396 pps->ref_loc_offset_layer_id[i] = get_bits(gb, 6);
1397 pps->scaled_ref_layer_offset_present_flag[i] = get_bits1(gb);
1398 if (pps->scaled_ref_layer_offset_present_flag[i]) {
1399 pps->scaled_ref_layer_left_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1400 pps->scaled_ref_layer_top_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1401 pps->scaled_ref_layer_right_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1402 pps->scaled_ref_layer_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1403 }
1404
1405 pps->ref_region_offset_present_flag[i] = get_bits1(gb);
1406 if (pps->ref_region_offset_present_flag[i]) {
1407 pps->ref_region_left_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1408 pps->ref_region_top_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1409 pps->ref_region_right_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1410 pps->ref_region_bottom_offset[pps->ref_loc_offset_layer_id[i]] = get_se_golomb_long(gb);
1411 }
1412
1413 pps->resample_phase_set_present_flag[i] = get_bits1(gb);
1414 if (pps->resample_phase_set_present_flag[i]) {
1415 pps->phase_hor_luma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_long(gb);
1416 pps->phase_ver_luma[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_long(gb);
1417 pps->phase_hor_chroma_plus8[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_long(gb);
1418 pps->phase_ver_chroma_plus8[pps->ref_loc_offset_layer_id[i]] = get_ue_golomb_long(gb);
1419 }
1420 }
1421
1422 5 pps->colour_mapping_enabled_flag = get_bits1(gb);
1423
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5 if (pps->colour_mapping_enabled_flag)
1424 5 colour_mapping_table(gb, pps);
1425
1426 5 return 0;
1427 }
1428
1429 static void delta_dlt(GetBitContext *gb, HEVCPPS *pps)
1430 {
1431 unsigned int num_val_delta_dlt, max_diff = 0;
1432 int min_diff_minus1 = -1;
1433 unsigned int len;
1434
1435 num_val_delta_dlt = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
1436 if (num_val_delta_dlt) {
1437 if (num_val_delta_dlt > 1)
1438 max_diff = get_bits(gb, pps->pps_bit_depth_for_depth_layers_minus8 + 8);
1439 if (num_val_delta_dlt > 2 && max_diff) {
1440 len = av_log2(max_diff) + 1;
1441 min_diff_minus1 = get_bits(gb, len);
1442 }
1443 if (max_diff > (min_diff_minus1 + 1))
1444 for (int k = 1; k < num_val_delta_dlt; k++) {
1445 len = av_log2(max_diff - (min_diff_minus1 + 1)) + 1;
1446 skip_bits(gb, len); // delta_val_diff_minus_min
1447 }
1448 }
1449 }
1450
1451 5 static int pps_3d_extension(GetBitContext *gb, AVCodecContext *avctx,
1452 HEVCPPS *pps, HEVCSPS *sps)
1453 {
1454 unsigned int pps_depth_layers_minus1;
1455
1456
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5 if (get_bits1(gb)) { // dlts_present_flag
1457 pps_depth_layers_minus1 = get_bits(gb, 6);
1458 pps->pps_bit_depth_for_depth_layers_minus8 = get_bits(gb, 4);
1459 for (int i = 0; i <= pps_depth_layers_minus1; i++) {
1460 if (get_bits1(gb)) { // dlt_flag[i]
1461 if (!get_bits1(gb)) { // dlt_pred_flag[i]
1462 if (get_bits1(gb)) { // dlt_val_flags_present_flag[i]
1463 for (int j = 0; j <= ((1 << (pps->pps_bit_depth_for_depth_layers_minus8 + 8)) - 1); j++)
1464 skip_bits1(gb); // dlt_value_flag[i][j]
1465 } else
1466 delta_dlt(gb, pps);
1467 }
1468 }
1469 }
1470 }
1471
1472 5 return 0;
1473 }
1474
1475 76 static int pps_range_extensions(GetBitContext *gb, AVCodecContext *avctx,
1476 HEVCPPS *pps, HEVCSPS *sps)
1477 {
1478
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76 if (pps->transform_skip_enabled_flag) {
1479 76 pps->log2_max_transform_skip_block_size = get_ue_golomb_long(gb) + 2;
1480 }
1481 76 pps->cross_component_prediction_enabled_flag = get_bits1(gb);
1482 76 pps->chroma_qp_offset_list_enabled_flag = get_bits1(gb);
1483
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76 if (pps->chroma_qp_offset_list_enabled_flag) {
1484 10 pps->diff_cu_chroma_qp_offset_depth = get_ue_golomb_long(gb);
1485 10 pps->chroma_qp_offset_list_len_minus1 = get_ue_golomb_long(gb);
1486
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10 if (pps->chroma_qp_offset_list_len_minus1 > 5) {
1487 av_log(avctx, AV_LOG_ERROR,
1488 "chroma_qp_offset_list_len_minus1 shall be in the range [0, 5].\n");
1489 return AVERROR_INVALIDDATA;
1490 }
1491
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20 for (int i = 0; i <= pps->chroma_qp_offset_list_len_minus1; i++) {
1492 10 pps->cb_qp_offset_list[i] = get_se_golomb_long(gb);
1493
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10 if (pps->cb_qp_offset_list[i]) {
1494 10 av_log(avctx, AV_LOG_WARNING,
1495 "cb_qp_offset_list not tested yet.\n");
1496 }
1497 10 pps->cr_qp_offset_list[i] = get_se_golomb_long(gb);
1498
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10 if (pps->cr_qp_offset_list[i]) {
1499 10 av_log(avctx, AV_LOG_WARNING,
1500 "cb_qp_offset_list not tested yet.\n");
1501 }
1502 }
1503 }
1504 76 pps->log2_sao_offset_scale_luma = get_ue_golomb_long(gb);
1505 76 pps->log2_sao_offset_scale_chroma = get_ue_golomb_long(gb);
1506
1507
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76 if ( pps->log2_sao_offset_scale_luma > FFMAX(sps->bit_depth - 10, 0)
1508
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76 || pps->log2_sao_offset_scale_chroma > FFMAX(sps->bit_depth_chroma - 10, 0)
1509 )
1510 return AVERROR_INVALIDDATA;
1511
1512 76 return(0);
1513 }
1514
1515 5 static int pps_scc_extension(GetBitContext *gb, AVCodecContext *avctx,
1516 HEVCPPS *pps, HEVCSPS *sps)
1517 {
1518 int num_comps, ret;
1519
1520 5 pps->pps_curr_pic_ref_enabled_flag = get_bits1(gb);
1521
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5 if (pps->residual_adaptive_colour_transform_enabled_flag = get_bits1(gb)) {
1522 pps->pps_slice_act_qp_offsets_present_flag = get_bits1(gb);
1523 pps->pps_act_y_qp_offset = get_se_golomb_long(gb) - 5;
1524 pps->pps_act_cb_qp_offset = get_se_golomb_long(gb) - 5;
1525 pps->pps_act_cr_qp_offset = get_se_golomb_long(gb) - 3;
1526
1527 #define CHECK_QP_OFFSET(name) (pps->pps_act_ ## name ## _qp_offset <= -12 || \
1528 pps->pps_act_ ## name ## _qp_offset >= 12)
1529 ret = CHECK_QP_OFFSET(y) || CHECK_QP_OFFSET(cb) || CHECK_QP_OFFSET(cr);
1530 #undef CHECK_QP_OFFSET
1531 if (ret) {
1532 av_log(avctx, AV_LOG_ERROR,
1533 "PpsActQpOffsetY/Cb/Cr shall be in the range of [-12, 12].\n");
1534 return AVERROR_INVALIDDATA;
1535 }
1536 }
1537
1538
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5 if (pps->pps_palette_predictor_initializers_present_flag = get_bits1(gb)) {
1539 if ((pps->pps_num_palette_predictor_initializers = get_ue_golomb_long(gb)) > 0) {
1540 pps->monochrome_palette_flag = get_bits1(gb);
1541 pps->luma_bit_depth_entry_minus8 = get_ue_golomb_long(gb);
1542 if (!pps->monochrome_palette_flag)
1543 pps->chroma_bit_depth_entry_minus8 = get_ue_golomb_long(gb);
1544 num_comps = pps->monochrome_palette_flag ? 1 : 3;
1545 for (int comp = 0; comp < num_comps; comp++)
1546 for (int i = 0; i < pps->pps_num_palette_predictor_initializers; i++)
1547 pps->pps_palette_predictor_initializer[comp][i] =
1548 get_bits(gb, 8 + (!comp ? pps->luma_bit_depth_entry_minus8 :
1549 pps->chroma_bit_depth_entry_minus8));
1550 }
1551 }
1552
1553 5 return 0;
1554 }
1555
1556 3246 static inline int setup_pps(AVCodecContext *avctx, GetBitContext *gb,
1557 HEVCPPS *pps, HEVCSPS *sps)
1558 {
1559 int log2_diff;
1560 int pic_area_in_ctbs;
1561 int i, j, x, y, ctb_addr_rs, tile_id;
1562
1563 // Inferred parameters
1564 3246 pps->col_bd = av_malloc_array(pps->num_tile_columns + 1, sizeof(*pps->col_bd));
1565 3246 pps->row_bd = av_malloc_array(pps->num_tile_rows + 1, sizeof(*pps->row_bd));
1566 3246 pps->col_idxX = av_malloc_array(sps->ctb_width, sizeof(*pps->col_idxX));
1567
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3246 if (!pps->col_bd || !pps->row_bd || !pps->col_idxX)
1568 return AVERROR(ENOMEM);
1569
1570
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3246 if (pps->uniform_spacing_flag) {
1571
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2714 if (!pps->column_width) {
1572 2338 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1573 2338 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1574 }
1575
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2714 if (!pps->column_width || !pps->row_height)
1576 return AVERROR(ENOMEM);
1577
1578
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5695 for (i = 0; i < pps->num_tile_columns; i++) {
1579 2981 pps->column_width[i] = ((i + 1) * sps->ctb_width) / pps->num_tile_columns -
1580 2981 (i * sps->ctb_width) / pps->num_tile_columns;
1581 }
1582
1583
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5726 for (i = 0; i < pps->num_tile_rows; i++) {
1584 3012 pps->row_height[i] = ((i + 1) * sps->ctb_height) / pps->num_tile_rows -
1585 3012 (i * sps->ctb_height) / pps->num_tile_rows;
1586 }
1587 }
1588
1589 3246 pps->col_bd[0] = 0;
1590
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8835 for (i = 0; i < pps->num_tile_columns; i++)
1591 5589 pps->col_bd[i + 1] = pps->col_bd[i] + pps->column_width[i];
1592
1593 3246 pps->row_bd[0] = 0;
1594
2/2
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8852 for (i = 0; i < pps->num_tile_rows; i++)
1595 5606 pps->row_bd[i + 1] = pps->row_bd[i] + pps->row_height[i];
1596
1597
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60189 for (i = 0, j = 0; i < sps->ctb_width; i++) {
1598
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56943 if (i > pps->col_bd[j])
1599 5575 j++;
1600 56943 pps->col_idxX[i] = j;
1601 }
1602
1603 /**
1604 * 6.5
1605 */
1606 3246 pic_area_in_ctbs = sps->ctb_width * sps->ctb_height;
1607
1608 3246 pps->ctb_addr_rs_to_ts = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_rs_to_ts));
1609 3246 pps->ctb_addr_ts_to_rs = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->ctb_addr_ts_to_rs));
1610 3246 pps->tile_id = av_malloc_array(pic_area_in_ctbs, sizeof(*pps->tile_id));
1611 3246 pps->min_tb_addr_zs_tab = av_malloc_array((sps->tb_mask+2) * (sps->tb_mask+2), sizeof(*pps->min_tb_addr_zs_tab));
1612
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3246 if (!pps->ctb_addr_rs_to_ts || !pps->ctb_addr_ts_to_rs ||
1613
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3246 !pps->tile_id || !pps->min_tb_addr_zs_tab) {
1614 return AVERROR(ENOMEM);
1615 }
1616
1617
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830253 for (ctb_addr_rs = 0; ctb_addr_rs < pic_area_in_ctbs; ctb_addr_rs++) {
1618 827007 int tb_x = ctb_addr_rs % sps->ctb_width;
1619 827007 int tb_y = ctb_addr_rs / sps->ctb_width;
1620 827007 int tile_x = 0;
1621 827007 int tile_y = 0;
1622 827007 int val = 0;
1623
1624
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1397741 for (i = 0; i < pps->num_tile_columns; i++) {
1625
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1397741 if (tb_x < pps->col_bd[i + 1]) {
1626 827007 tile_x = i;
1627 827007 break;
1628 }
1629 }
1630
1631
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1246473 for (i = 0; i < pps->num_tile_rows; i++) {
1632
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✓ Branch 1 taken 419466 times.
1246473 if (tb_y < pps->row_bd[i + 1]) {
1633 827007 tile_y = i;
1634 827007 break;
1635 }
1636 }
1637
1638
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1397741 for (i = 0; i < tile_x; i++)
1639 570734 val += pps->row_height[tile_y] * pps->column_width[i];
1640
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1246473 for (i = 0; i < tile_y; i++)
1641 419466 val += sps->ctb_width * pps->row_height[i];
1642
1643 827007 val += (tb_y - pps->row_bd[tile_y]) * pps->column_width[tile_x] +
1644 827007 tb_x - pps->col_bd[tile_x];
1645
1646 827007 pps->ctb_addr_rs_to_ts[ctb_addr_rs] = val;
1647 827007 pps->ctb_addr_ts_to_rs[val] = ctb_addr_rs;
1648 }
1649
1650
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8852 for (j = 0, tile_id = 0; j < pps->num_tile_rows; j++)
1651
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21856 for (i = 0; i < pps->num_tile_columns; i++, tile_id++)
1652
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94957 for (y = pps->row_bd[j]; y < pps->row_bd[j + 1]; y++)
1653
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905714 for (x = pps->col_bd[i]; x < pps->col_bd[i + 1]; x++)
1654 827007 pps->tile_id[pps->ctb_addr_rs_to_ts[y * sps->ctb_width + x]] = tile_id;
1655
1656 3246 pps->tile_pos_rs = av_malloc_array(tile_id, sizeof(*pps->tile_pos_rs));
1657
1/2
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3246 if (!pps->tile_pos_rs)
1658 return AVERROR(ENOMEM);
1659
1660
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8852 for (j = 0; j < pps->num_tile_rows; j++)
1661
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21856 for (i = 0; i < pps->num_tile_columns; i++)
1662 16250 pps->tile_pos_rs[j * pps->num_tile_columns + i] =
1663 16250 pps->row_bd[j] * sps->ctb_width + pps->col_bd[i];
1664
1665 3246 log2_diff = sps->log2_ctb_size - sps->log2_min_tb_size;
1666 3246 pps->min_tb_addr_zs = &pps->min_tb_addr_zs_tab[1*(sps->tb_mask+2)+1];
1667
2/2
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57116 for (y = 0; y < sps->tb_mask+2; y++) {
1668 53870 pps->min_tb_addr_zs_tab[y*(sps->tb_mask+2)] = -1;
1669 53870 pps->min_tb_addr_zs_tab[y] = -1;
1670 }
1671
2/2
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53870 for (y = 0; y < sps->tb_mask+1; y++) {
1672
2/2
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852416 for (x = 0; x < sps->tb_mask+1; x++) {
1673 801792 int tb_x = x >> log2_diff;
1674 801792 int tb_y = y >> log2_diff;
1675 801792 int rs = sps->ctb_width * tb_y + tb_x;
1676 801792 int val = pps->ctb_addr_rs_to_ts[rs] << (log2_diff * 2);
1677
2/2
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4001536 for (i = 0; i < log2_diff; i++) {
1678 3199744 int m = 1 << i;
1679
4/4
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✓ Branch 2 taken 1599872 times.
✓ Branch 3 taken 1599872 times.
3199744 val += (m & x ? m * m : 0) + (m & y ? 2 * m * m : 0);
1680 }
1681 801792 pps->min_tb_addr_zs[y * (sps->tb_mask+2) + x] = val;
1682 }
1683 }
1684
1685 3246 return 0;
1686 }
1687
1688 3250 int ff_hevc_decode_nal_pps(GetBitContext *gb, AVCodecContext *avctx,
1689 HEVCParamSets *ps)
1690 {
1691 3250 HEVCSPS *sps = NULL;
1692 3250 int i, ret = 0;
1693 3250 unsigned int pps_id = 0;
1694 ptrdiff_t nal_size;
1695 unsigned log2_parallel_merge_level_minus2;
1696
1697 AVBufferRef *pps_buf;
1698 3250 HEVCPPS *pps = av_mallocz(sizeof(*pps));
1699
1700
1/2
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✓ Branch 1 taken 3250 times.
3250 if (!pps)
1701 return AVERROR(ENOMEM);
1702
1703 3250 pps_buf = av_buffer_create((uint8_t *)pps, sizeof(*pps),
1704 hevc_pps_free, NULL, 0);
1705
1/2
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3250 if (!pps_buf) {
1706 av_freep(&pps);
1707 return AVERROR(ENOMEM);
1708 }
1709
1710 3250 av_log(avctx, AV_LOG_DEBUG, "Decoding PPS\n");
1711
1712 3250 nal_size = gb->buffer_end - gb->buffer;
1713
1/2
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3250 if (nal_size > sizeof(pps->data)) {
1714 av_log(avctx, AV_LOG_WARNING, "Truncating likely oversized PPS "
1715 "(%"PTRDIFF_SPECIFIER" > %"SIZE_SPECIFIER")\n",
1716 nal_size, sizeof(pps->data));
1717 pps->data_size = sizeof(pps->data);
1718 } else {
1719 3250 pps->data_size = nal_size;
1720 }
1721 3250 memcpy(pps->data, gb->buffer, pps->data_size);
1722
1723 // Default values
1724 3250 pps->loop_filter_across_tiles_enabled_flag = 1;
1725 3250 pps->num_tile_columns = 1;
1726 3250 pps->num_tile_rows = 1;
1727 3250 pps->uniform_spacing_flag = 1;
1728 3250 pps->disable_dbf = 0;
1729 3250 pps->beta_offset = 0;
1730 3250 pps->tc_offset = 0;
1731 3250 pps->log2_max_transform_skip_block_size = 2;
1732
1733 // Coded parameters
1734 3250 pps_id = get_ue_golomb_long(gb);
1735
1/2
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3250 if (pps_id >= HEVC_MAX_PPS_COUNT) {
1736 av_log(avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
1737 ret = AVERROR_INVALIDDATA;
1738 goto err;
1739 }
1740 3250 pps->sps_id = get_ue_golomb_long(gb);
1741
1/2
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3250 if (pps->sps_id >= HEVC_MAX_SPS_COUNT) {
1742 av_log(avctx, AV_LOG_ERROR, "SPS id out of range: %d\n", pps->sps_id);
1743 ret = AVERROR_INVALIDDATA;
1744 goto err;
1745 }
1746
2/2
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3250 if (!ps->sps_list[pps->sps_id]) {
1747 4 av_log(avctx, AV_LOG_ERROR, "SPS %u does not exist.\n", pps->sps_id);
1748 4 ret = AVERROR_INVALIDDATA;
1749 4 goto err;
1750 }
1751 3246 sps = (HEVCSPS *)ps->sps_list[pps->sps_id]->data;
1752
1753 3246 pps->dependent_slice_segments_enabled_flag = get_bits1(gb);
1754 3246 pps->output_flag_present_flag = get_bits1(gb);
1755 3246 pps->num_extra_slice_header_bits = get_bits(gb, 3);
1756
1757 3246 pps->sign_data_hiding_flag = get_bits1(gb);
1758
1759 3246 pps->cabac_init_present_flag = get_bits1(gb);
1760
1761 3246 pps->num_ref_idx_l0_default_active = get_ue_golomb_long(gb) + 1;
1762 3246 pps->num_ref_idx_l1_default_active = get_ue_golomb_long(gb) + 1;
1763
1764 3246 pps->pic_init_qp_minus26 = get_se_golomb(gb);
1765
1766 3246 pps->constrained_intra_pred_flag = get_bits1(gb);
1767 3246 pps->transform_skip_enabled_flag = get_bits1(gb);
1768
1769 3246 pps->cu_qp_delta_enabled_flag = get_bits1(gb);
1770 3246 pps->diff_cu_qp_delta_depth = 0;
1771
2/2
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3246 if (pps->cu_qp_delta_enabled_flag)
1772 527 pps->diff_cu_qp_delta_depth = get_ue_golomb_long(gb);
1773
1774
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3246 if (pps->diff_cu_qp_delta_depth < 0 ||
1775
1/2
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3246 pps->diff_cu_qp_delta_depth > sps->log2_diff_max_min_coding_block_size) {
1776 av_log(avctx, AV_LOG_ERROR, "diff_cu_qp_delta_depth %d is invalid\n",
1777 pps->diff_cu_qp_delta_depth);
1778 ret = AVERROR_INVALIDDATA;
1779 goto err;
1780 }
1781
1782 3246 pps->cb_qp_offset = get_se_golomb(gb);
1783
2/4
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3246 if (pps->cb_qp_offset < -12 || pps->cb_qp_offset > 12) {
1784 av_log(avctx, AV_LOG_ERROR, "pps_cb_qp_offset out of range: %d\n",
1785 pps->cb_qp_offset);
1786 ret = AVERROR_INVALIDDATA;
1787 goto err;
1788 }
1789 3246 pps->cr_qp_offset = get_se_golomb(gb);
1790
2/4
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3246 if (pps->cr_qp_offset < -12 || pps->cr_qp_offset > 12) {
1791 av_log(avctx, AV_LOG_ERROR, "pps_cr_qp_offset out of range: %d\n",
1792 pps->cr_qp_offset);
1793 ret = AVERROR_INVALIDDATA;
1794 goto err;
1795 }
1796 3246 pps->pic_slice_level_chroma_qp_offsets_present_flag = get_bits1(gb);
1797
1798 3246 pps->weighted_pred_flag = get_bits1(gb);
1799 3246 pps->weighted_bipred_flag = get_bits1(gb);
1800
1801 3246 pps->transquant_bypass_enable_flag = get_bits1(gb);
1802 3246 pps->tiles_enabled_flag = get_bits1(gb);
1803 3246 pps->entropy_coding_sync_enabled_flag = get_bits1(gb);
1804
1805
2/2
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3246 if (pps->tiles_enabled_flag) {
1806 908 int num_tile_columns_minus1 = get_ue_golomb(gb);
1807 908 int num_tile_rows_minus1 = get_ue_golomb(gb);
1808
1809
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908 if (num_tile_columns_minus1 < 0 ||
1810
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908 num_tile_columns_minus1 >= sps->ctb_width) {
1811 av_log(avctx, AV_LOG_ERROR, "num_tile_columns_minus1 out of range: %d\n",
1812 num_tile_columns_minus1);
1813 ret = num_tile_columns_minus1 < 0 ? num_tile_columns_minus1 : AVERROR_INVALIDDATA;
1814 goto err;
1815 }
1816
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908 if (num_tile_rows_minus1 < 0 ||
1817
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908 num_tile_rows_minus1 >= sps->ctb_height) {
1818 av_log(avctx, AV_LOG_ERROR, "num_tile_rows_minus1 out of range: %d\n",
1819 num_tile_rows_minus1);
1820 ret = num_tile_rows_minus1 < 0 ? num_tile_rows_minus1 : AVERROR_INVALIDDATA;
1821 goto err;
1822 }
1823 908 pps->num_tile_columns = num_tile_columns_minus1 + 1;
1824 908 pps->num_tile_rows = num_tile_rows_minus1 + 1;
1825
1826 908 pps->column_width = av_malloc_array(pps->num_tile_columns, sizeof(*pps->column_width));
1827 908 pps->row_height = av_malloc_array(pps->num_tile_rows, sizeof(*pps->row_height));
1828
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908 if (!pps->column_width || !pps->row_height) {
1829 ret = AVERROR(ENOMEM);
1830 goto err;
1831 }
1832
1833 908 pps->uniform_spacing_flag = get_bits1(gb);
1834
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908 if (!pps->uniform_spacing_flag) {
1835 532 uint64_t sum = 0;
1836
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2608 for (i = 0; i < pps->num_tile_columns - 1; i++) {
1837 2076 pps->column_width[i] = get_ue_golomb_long(gb) + 1;
1838 2076 sum += pps->column_width[i];
1839 }
1840
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532 if (sum >= sps->ctb_width) {
1841 av_log(avctx, AV_LOG_ERROR, "Invalid tile widths.\n");
1842 ret = AVERROR_INVALIDDATA;
1843 goto err;
1844 }
1845 532 pps->column_width[pps->num_tile_columns - 1] = sps->ctb_width - sum;
1846
1847 532 sum = 0;
1848
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2594 for (i = 0; i < pps->num_tile_rows - 1; i++) {
1849 2062 pps->row_height[i] = get_ue_golomb_long(gb) + 1;
1850 2062 sum += pps->row_height[i];
1851 }
1852
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532 if (sum >= sps->ctb_height) {
1853 av_log(avctx, AV_LOG_ERROR, "Invalid tile heights.\n");
1854 ret = AVERROR_INVALIDDATA;
1855 goto err;
1856 }
1857 532 pps->row_height[pps->num_tile_rows - 1] = sps->ctb_height - sum;
1858 }
1859 908 pps->loop_filter_across_tiles_enabled_flag = get_bits1(gb);
1860 }
1861
1862 3246 pps->seq_loop_filter_across_slices_enabled_flag = get_bits1(gb);
1863
1864 3246 pps->deblocking_filter_control_present_flag = get_bits1(gb);
1865
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3246 if (pps->deblocking_filter_control_present_flag) {
1866 1029 pps->deblocking_filter_override_enabled_flag = get_bits1(gb);
1867 1029 pps->disable_dbf = get_bits1(gb);
1868
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1029 if (!pps->disable_dbf) {
1869 887 int beta_offset_div2 = get_se_golomb(gb);
1870 887 int tc_offset_div2 = get_se_golomb(gb) ;
1871
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887 if (beta_offset_div2 < -6 || beta_offset_div2 > 6) {
1872 av_log(avctx, AV_LOG_ERROR, "pps_beta_offset_div2 out of range: %d\n",
1873 beta_offset_div2);
1874 ret = AVERROR_INVALIDDATA;
1875 goto err;
1876 }
1877
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887 if (tc_offset_div2 < -6 || tc_offset_div2 > 6) {
1878 av_log(avctx, AV_LOG_ERROR, "pps_tc_offset_div2 out of range: %d\n",
1879 tc_offset_div2);
1880 ret = AVERROR_INVALIDDATA;
1881 goto err;
1882 }
1883 887 pps->beta_offset = 2 * beta_offset_div2;
1884 887 pps->tc_offset = 2 * tc_offset_div2;
1885 }
1886 }
1887
1888 3246 pps->scaling_list_data_present_flag = get_bits1(gb);
1889
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3246 if (pps->scaling_list_data_present_flag) {
1890 469 set_default_scaling_list_data(&pps->scaling_list);
1891 469 ret = scaling_list_data(gb, avctx, &pps->scaling_list, sps);
1892
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469 if (ret < 0)
1893 goto err;
1894 }
1895 3246 pps->lists_modification_present_flag = get_bits1(gb);
1896 3246 log2_parallel_merge_level_minus2 = get_ue_golomb_long(gb);
1897
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3246 if (log2_parallel_merge_level_minus2 > sps->log2_ctb_size) {
1898 av_log(avctx, AV_LOG_ERROR, "log2_parallel_merge_level_minus2 out of range: %d\n",
1899 log2_parallel_merge_level_minus2);
1900 ret = AVERROR_INVALIDDATA;
1901 goto err;
1902 }
1903 3246 pps->log2_parallel_merge_level = log2_parallel_merge_level_minus2 + 2;
1904
1905 3246 pps->slice_header_extension_present_flag = get_bits1(gb);
1906
1907
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3246 if (get_bits1(gb)) { // pps_extension_present_flag
1908 91 pps->pps_range_extensions_flag = get_bits1(gb);
1909 91 pps->pps_multilayer_extension_flag = get_bits1(gb);
1910 91 pps->pps_3d_extension_flag = get_bits1(gb);
1911 91 pps->pps_scc_extension_flag = get_bits1(gb);
1912 91 skip_bits(gb, 4); // pps_extension_4bits
1913
1914
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91 if (sps->ptl.general_ptl.profile_idc >= FF_PROFILE_HEVC_REXT && pps->pps_range_extensions_flag) {
1915
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76 if ((ret = pps_range_extensions(gb, avctx, pps, sps)) < 0)
1916 goto err;
1917 }
1918
1919
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91 if (pps->pps_multilayer_extension_flag) {
1920
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5 if ((ret = pps_multilayer_extension(gb, avctx, pps, sps)) < 0)
1921 goto err;
1922 }
1923
1924
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91 if (pps->pps_3d_extension_flag) {
1925
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5 if ((ret = pps_3d_extension(gb, avctx, pps, sps)) < 0)
1926 goto err;
1927 }
1928
1929
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