FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/cbs_h2645.c
Date: 2023-12-07 21:54:23
Exec Total Coverage
Lines: 655 928 70.6%
Functions: 36 38 94.7%
Branches: 390 646 60.4%
Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include "libavutil/attributes.h"
20 #include "libavutil/avassert.h"
21
22 #include "bytestream.h"
23 #include "cbs.h"
24 #include "cbs_internal.h"
25 #include "cbs_h264.h"
26 #include "cbs_h265.h"
27 #include "cbs_h266.h"
28 #include "h264.h"
29 #include "h2645_parse.h"
30 #include "hevc.h"
31 #include "refstruct.h"
32 #include "vvc.h"
33
34
35 232882 static int cbs_read_ue_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc,
36 const char *name, const int *subscripts,
37 uint32_t *write_to,
38 uint32_t range_min, uint32_t range_max)
39 {
40 uint32_t leading_bits, value;
41 int max_length, leading_zeroes;
42
43
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 232882 CBS_TRACE_READ_START();
44
45
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 232882 max_length = FFMIN(get_bits_left(gbc), 32);
46
47
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 232882 leading_bits = max_length ? show_bits_long(gbc, max_length) : 0;
48
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 232882 if (leading_bits == 0) {
49 ✗ if (max_length >= 32) {
50 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at "
51 "%s: more than 31 zeroes.\n", name);
52 ✗ return AVERROR_INVALIDDATA;
53 } else {
54 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at "
55 "%s: bitstream ended.\n", name);
56 ✗ return AVERROR_INVALIDDATA;
57 }
58 }
59
60 232882 leading_zeroes = max_length - 1 - av_log2(leading_bits);
61 232882 skip_bits_long(gbc, leading_zeroes);
62
63
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 232882 if (get_bits_left(gbc) < leading_zeroes + 1) {
64 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid ue-golomb code at "
65 "%s: bitstream ended.\n", name);
66 ✗ return AVERROR_INVALIDDATA;
67 }
68
69 232882 value = get_bits_long(gbc, leading_zeroes + 1) - 1;
70
71
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 232882 CBS_TRACE_READ_END();
72
73
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 232882 if (value < range_min || value > range_max) {
74 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
75 "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
76 name, value, range_min, range_max);
77 ✗ return AVERROR_INVALIDDATA;
78 }
79
80 232882 *write_to = value;
81 232882 return 0;
82 }
83
84 90249 static int cbs_read_se_golomb(CodedBitstreamContext *ctx, GetBitContext *gbc,
85 const char *name, const int *subscripts,
86 int32_t *write_to,
87 int32_t range_min, int32_t range_max)
88 {
89 uint32_t leading_bits, unsigned_value;
90 int max_length, leading_zeroes;
91 int32_t value;
92
93
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 90249 CBS_TRACE_READ_START();
94
95
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 90249 max_length = FFMIN(get_bits_left(gbc), 32);
96
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 90249 leading_bits = max_length ? show_bits_long(gbc, max_length) : 0;
98
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 90249 if (leading_bits == 0) {
99 ✗ if (max_length >= 32) {
100 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at "
101 "%s: more than 31 zeroes.\n", name);
102 ✗ return AVERROR_INVALIDDATA;
103 } else {
104 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at "
105 "%s: bitstream ended.\n", name);
106 ✗ return AVERROR_INVALIDDATA;
107 }
108 }
109
110 90249 leading_zeroes = max_length - 1 - av_log2(leading_bits);
111 90249 skip_bits_long(gbc, leading_zeroes);
112
113
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 90249 if (get_bits_left(gbc) < leading_zeroes + 1) {
114 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid se-golomb code at "
115 "%s: bitstream ended.\n", name);
116 ✗ return AVERROR_INVALIDDATA;
117 }
118
119 90249 unsigned_value = get_bits_long(gbc, leading_zeroes + 1);
120
121
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 90249 if (unsigned_value & 1)
122 49577 value = -(int32_t)(unsigned_value / 2);
123 else
124 40672 value = unsigned_value / 2;
125
126
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 90249 CBS_TRACE_READ_END();
127
128
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 90249 if (value < range_min || value > range_max) {
129 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
130 "%"PRId32", but must be in [%"PRId32",%"PRId32"].\n",
131 name, value, range_min, range_max);
132 ✗ return AVERROR_INVALIDDATA;
133 }
134
135 90249 *write_to = value;
136 90249 return 0;
137 }
138
139 154844 static int cbs_write_ue_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
140 const char *name, const int *subscripts,
141 uint32_t value,
142 uint32_t range_min, uint32_t range_max)
143 {
144 int len;
145
146
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 154844 CBS_TRACE_WRITE_START();
147
148
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 154844 if (value < range_min || value > range_max) {
149 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
150 "%"PRIu32", but must be in [%"PRIu32",%"PRIu32"].\n",
151 name, value, range_min, range_max);
152 ✗ return AVERROR_INVALIDDATA;
153 }
154
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 154844 av_assert0(value != UINT32_MAX);
155
156 154844 len = av_log2(value + 1);
157
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 154844 if (put_bits_left(pbc) < 2 * len + 1)
158 ✗ return AVERROR(ENOSPC);
159
160 154844 put_bits(pbc, len, 0);
161
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 154844 if (len + 1 < 32)
162 154844 put_bits(pbc, len + 1, value + 1);
163 else
164 ✗ put_bits32(pbc, value + 1);
165
166
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 154844 CBS_TRACE_WRITE_END();
167
168 154844 return 0;
169 }
170
171 84001 static int cbs_write_se_golomb(CodedBitstreamContext *ctx, PutBitContext *pbc,
172 const char *name, const int *subscripts,
173 int32_t value,
174 int32_t range_min, int32_t range_max)
175 {
176 int len;
177 uint32_t uvalue;
178
179
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 84001 CBS_TRACE_WRITE_START();
180
181
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 84001 if (value < range_min || value > range_max) {
182 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "%s out of range: "
183 "%"PRId32", but must be in [%"PRId32",%"PRId32"].\n",
184 name, value, range_min, range_max);
185 ✗ return AVERROR_INVALIDDATA;
186 }
187
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 84001 av_assert0(value != INT32_MIN);
188
189
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 84001 if (value == 0)
190 19170 uvalue = 0;
191
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 64831 else if (value > 0)
192 36505 uvalue = 2 * (uint32_t)value - 1;
193 else
194 28326 uvalue = 2 * (uint32_t)-value;
195
196 84001 len = av_log2(uvalue + 1);
197
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 84001 if (put_bits_left(pbc) < 2 * len + 1)
198 ✗ return AVERROR(ENOSPC);
199
200 84001 put_bits(pbc, len, 0);
201
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 84001 if (len + 1 < 32)
202 84001 put_bits(pbc, len + 1, uvalue + 1);
203 else
204 ✗ put_bits32(pbc, uvalue + 1);
205
206
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 84001 CBS_TRACE_WRITE_END();
207
208 84001 return 0;
209 }
210
211 // payload_extension_present() - true if we are before the last 1-bit
212 // in the payload structure, which must be in the last byte.
213 5 static int cbs_h265_payload_extension_present(GetBitContext *gbc, uint32_t payload_size,
214 int cur_pos)
215 {
216 5 int bits_left = payload_size * 8 - cur_pos;
217
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 5 return (bits_left > 0 &&
218 ✗ (bits_left > 7 || show_bits(gbc, bits_left) & MAX_UINT_BITS(bits_left - 1)));
219 }
220
221 #define HEADER(name) do { \
222 ff_cbs_trace_header(ctx, name); \
223 } while (0)
224
225 #define CHECK(call) do { \
226 err = (call); \
227 if (err < 0) \
228 return err; \
229 } while (0)
230
231 #define FUNC_NAME2(rw, codec, name) cbs_ ## codec ## _ ## rw ## _ ## name
232 #define FUNC_NAME1(rw, codec, name) FUNC_NAME2(rw, codec, name)
233 #define FUNC_H264(name) FUNC_NAME1(READWRITE, h264, name)
234 #define FUNC_H265(name) FUNC_NAME1(READWRITE, h265, name)
235 #define FUNC_H266(name) FUNC_NAME1(READWRITE, h266, name)
236 #define FUNC_SEI(name) FUNC_NAME1(READWRITE, sei, name)
237
238 #define SUBSCRIPTS(subs, ...) (subs > 0 ? ((int[subs + 1]){ subs, __VA_ARGS__ }) : NULL)
239
240 #define u(width, name, range_min, range_max) \
241 xu(width, name, current->name, range_min, range_max, 0, )
242 #define flag(name) ub(1, name)
243 #define ue(name, range_min, range_max) \
244 xue(name, current->name, range_min, range_max, 0, )
245 #define i(width, name, range_min, range_max) \
246 xi(width, name, current->name, range_min, range_max, 0, )
247 #define ib(width, name) \
248 xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), 0, )
249 #define se(name, range_min, range_max) \
250 xse(name, current->name, range_min, range_max, 0, )
251
252 #define us(width, name, range_min, range_max, subs, ...) \
253 xu(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)
254 #define ubs(width, name, subs, ...) \
255 xu(width, name, current->name, 0, MAX_UINT_BITS(width), subs, __VA_ARGS__)
256 #define flags(name, subs, ...) \
257 xu(1, name, current->name, 0, 1, subs, __VA_ARGS__)
258 #define ues(name, range_min, range_max, subs, ...) \
259 xue(name, current->name, range_min, range_max, subs, __VA_ARGS__)
260 #define is(width, name, range_min, range_max, subs, ...) \
261 xi(width, name, current->name, range_min, range_max, subs, __VA_ARGS__)
262 #define ibs(width, name, subs, ...) \
263 xi(width, name, current->name, MIN_INT_BITS(width), MAX_INT_BITS(width), subs, __VA_ARGS__)
264 #define ses(name, range_min, range_max, subs, ...) \
265 xse(name, current->name, range_min, range_max, subs, __VA_ARGS__)
266
267 #define fixed(width, name, value) do { \
268 av_unused uint32_t fixed_value = value; \
269 xu(width, name, fixed_value, value, value, 0, ); \
270 } while (0)
271
272
273 #define READ
274 #define READWRITE read
275 #define RWContext GetBitContext
276
277 #define ub(width, name) do { \
278 uint32_t value; \
279 CHECK(ff_cbs_read_simple_unsigned(ctx, rw, width, #name, \
280 &value)); \
281 current->name = value; \
282 } while (0)
283 #define xu(width, name, var, range_min, range_max, subs, ...) do { \
284 uint32_t value; \
285 CHECK(ff_cbs_read_unsigned(ctx, rw, width, #name, \
286 SUBSCRIPTS(subs, __VA_ARGS__), \
287 &value, range_min, range_max)); \
288 var = value; \
289 } while (0)
290 #define xue(name, var, range_min, range_max, subs, ...) do { \
291 uint32_t value; \
292 CHECK(cbs_read_ue_golomb(ctx, rw, #name, \
293 SUBSCRIPTS(subs, __VA_ARGS__), \
294 &value, range_min, range_max)); \
295 var = value; \
296 } while (0)
297 #define xi(width, name, var, range_min, range_max, subs, ...) do { \
298 int32_t value; \
299 CHECK(ff_cbs_read_signed(ctx, rw, width, #name, \
300 SUBSCRIPTS(subs, __VA_ARGS__), \
301 &value, range_min, range_max)); \
302 var = value; \
303 } while (0)
304 #define xse(name, var, range_min, range_max, subs, ...) do { \
305 int32_t value; \
306 CHECK(cbs_read_se_golomb(ctx, rw, #name, \
307 SUBSCRIPTS(subs, __VA_ARGS__), \
308 &value, range_min, range_max)); \
309 var = value; \
310 } while (0)
311
312
313 #define infer(name, value) do { \
314 current->name = value; \
315 } while (0)
316
317 24687 static int cbs_h2645_read_more_rbsp_data(GetBitContext *gbc)
318 {
319 24687 int bits_left = get_bits_left(gbc);
320
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 24687 if (bits_left > 8)
321 18358 return 1;
322
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 6329 if (bits_left == 0)
323 ✗ return 0;
324
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 6329 if (show_bits(gbc, bits_left) & MAX_UINT_BITS(bits_left - 1))
325 7 return 1;
326 6322 return 0;
327 }
328
329 #define more_rbsp_data(var) ((var) = cbs_h2645_read_more_rbsp_data(rw))
330
331 #define bit_position(rw) (get_bits_count(rw))
332 #define byte_alignment(rw) (get_bits_count(rw) % 8)
333
334 /* The CBS SEI code uses the refstruct API for the allocation
335 * of its child buffers. */
336 #define allocate(name, size) do { \
337 name = ff_refstruct_allocz(size + \
338 AV_INPUT_BUFFER_PADDING_SIZE); \
339 if (!name) \
340 return AVERROR(ENOMEM); \
341 } while (0)
342
343 #define FUNC(name) FUNC_SEI(name)
344 #include "cbs_sei_syntax_template.c"
345 #undef FUNC
346
347 #undef allocate
348
349 /* The other code uses the refstruct API for the allocation
350 * of its child buffers. */
351 #define allocate(name, size) do { \
352 name ## _ref = av_buffer_allocz(size + \
353 AV_INPUT_BUFFER_PADDING_SIZE); \
354 if (!name ## _ref) \
355 return AVERROR(ENOMEM); \
356 name = name ## _ref->data; \
357 } while (0)
358
359 #define FUNC(name) FUNC_H264(name)
360 #include "cbs_h264_syntax_template.c"
361 #undef FUNC
362
363 #define FUNC(name) FUNC_H265(name)
364 #include "cbs_h265_syntax_template.c"
365 #undef FUNC
366
367 #define FUNC(name) FUNC_H266(name)
368 #include "cbs_h266_syntax_template.c"
369 #undef FUNC
370
371 #undef READ
372 #undef READWRITE
373 #undef RWContext
374 #undef ub
375 #undef xu
376 #undef xi
377 #undef xue
378 #undef xse
379 #undef infer
380 #undef more_rbsp_data
381 #undef bit_position
382 #undef byte_alignment
383 #undef allocate
384
385
386 #define WRITE
387 #define READWRITE write
388 #define RWContext PutBitContext
389
390 #define ub(width, name) do { \
391 uint32_t value = current->name; \
392 CHECK(ff_cbs_write_simple_unsigned(ctx, rw, width, #name, \
393 value)); \
394 } while (0)
395 #define xu(width, name, var, range_min, range_max, subs, ...) do { \
396 uint32_t value = var; \
397 CHECK(ff_cbs_write_unsigned(ctx, rw, width, #name, \
398 SUBSCRIPTS(subs, __VA_ARGS__), \
399 value, range_min, range_max)); \
400 } while (0)
401 #define xue(name, var, range_min, range_max, subs, ...) do { \
402 uint32_t value = var; \
403 CHECK(cbs_write_ue_golomb(ctx, rw, #name, \
404 SUBSCRIPTS(subs, __VA_ARGS__), \
405 value, range_min, range_max)); \
406 } while (0)
407 #define xi(width, name, var, range_min, range_max, subs, ...) do { \
408 int32_t value = var; \
409 CHECK(ff_cbs_write_signed(ctx, rw, width, #name, \
410 SUBSCRIPTS(subs, __VA_ARGS__), \
411 value, range_min, range_max)); \
412 } while (0)
413 #define xse(name, var, range_min, range_max, subs, ...) do { \
414 int32_t value = var; \
415 CHECK(cbs_write_se_golomb(ctx, rw, #name, \
416 SUBSCRIPTS(subs, __VA_ARGS__), \
417 value, range_min, range_max)); \
418 } while (0)
419
420 #define infer(name, value) do { \
421 if (current->name != (value)) { \
422 av_log(ctx->log_ctx, AV_LOG_ERROR, \
423 "%s does not match inferred value: " \
424 "%"PRId64", but should be %"PRId64".\n", \
425 #name, (int64_t)current->name, (int64_t)(value)); \
426 return AVERROR_INVALIDDATA; \
427 } \
428 } while (0)
429
430 #define more_rbsp_data(var) (var)
431
432 #define bit_position(rw) (put_bits_count(rw))
433 #define byte_alignment(rw) (put_bits_count(rw) % 8)
434
435 #define allocate(name, size) do { \
436 if (!name) { \
437 av_log(ctx->log_ctx, AV_LOG_ERROR, "%s must be set " \
438 "for writing.\n", #name); \
439 return AVERROR_INVALIDDATA; \
440 } \
441 } while (0)
442
443 #define FUNC(name) FUNC_SEI(name)
444 #include "cbs_sei_syntax_template.c"
445 #undef FUNC
446
447 #define FUNC(name) FUNC_H264(name)
448 #include "cbs_h264_syntax_template.c"
449 #undef FUNC
450
451 #define FUNC(name) FUNC_H265(name)
452 #include "cbs_h265_syntax_template.c"
453 #undef FUNC
454
455 #define FUNC(name) FUNC_H266(name)
456 #include "cbs_h266_syntax_template.c"
457 #undef FUNC
458
459 #undef WRITE
460 #undef READWRITE
461 #undef RWContext
462 #undef ub
463 #undef xu
464 #undef xi
465 #undef xue
466 #undef xse
467 #undef u
468 #undef i
469 #undef flag
470 #undef ue
471 #undef se
472 #undef infer
473 #undef more_rbsp_data
474 #undef bit_position
475 #undef byte_alignment
476 #undef allocate
477
478
479 9975 static int cbs_h2645_fragment_add_nals(CodedBitstreamContext *ctx,
480 CodedBitstreamFragment *frag,
481 const H2645Packet *packet)
482 {
483 int err, i;
484
485
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 40131 for (i = 0; i < packet->nb_nals; i++) {
486 30156 const H2645NAL *nal = &packet->nals[i];
487 AVBufferRef *ref;
488 30156 size_t size = nal->size;
489 30156 enum AVCodecID codec_id = ctx->codec->codec_id;
490
491
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 30156 if (codec_id != AV_CODEC_ID_VVC && nal->nuh_layer_id > 0)
492 ✗ continue;
493
494 // Remove trailing zeroes.
495
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 39718 while (size > 0 && nal->data[size - 1] == 0)
496 9562 --size;
497
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 30156 if (size == 0) {
498 ✗ av_log(ctx->log_ctx, AV_LOG_VERBOSE, "Discarding empty 0 NAL unit\n");
499 ✗ continue;
500 }
501
502 60312 ref = (nal->data == nal->raw_data) ? frag->data_ref
503
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 30156 : packet->rbsp.rbsp_buffer_ref;
504
505 30156 err = ff_cbs_append_unit_data(frag, nal->type,
506 30156 (uint8_t*)nal->data, size, ref);
507
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 30156 if (err < 0)
508 ✗ return err;
509 }
510
511 9975 return 0;
512 }
513
514 9966 static int cbs_h2645_split_fragment(CodedBitstreamContext *ctx,
515 CodedBitstreamFragment *frag,
516 int header)
517 {
518 9966 enum AVCodecID codec_id = ctx->codec->codec_id;
519 9966 CodedBitstreamH2645Context *priv = ctx->priv_data;
520 GetByteContext gbc;
521 int err;
522
523
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 9966 av_assert0(frag->data && frag->nb_units == 0);
524
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 9966 if (frag->data_size == 0)
525 ✗ return 0;
526
527
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 9975 if (header && frag->data[0] && codec_id == AV_CODEC_ID_H264) {
528 // AVCC header.
529 size_t size, start, end;
530 int i, count, version;
531
532 9 priv->mp4 = 1;
533
534 9 bytestream2_init(&gbc, frag->data, frag->data_size);
535
536
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 9 if (bytestream2_get_bytes_left(&gbc) < 6)
537 ✗ return AVERROR_INVALIDDATA;
538
539 9 version = bytestream2_get_byte(&gbc);
540
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 9 if (version != 1) {
541 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid AVCC header: "
542 "first byte %u.\n", version);
543 ✗ return AVERROR_INVALIDDATA;
544 }
545
546 9 bytestream2_skip(&gbc, 3);
547 9 priv->nal_length_size = (bytestream2_get_byte(&gbc) & 3) + 1;
548
549 // SPS array.
550 9 count = bytestream2_get_byte(&gbc) & 0x1f;
551 9 start = bytestream2_tell(&gbc);
552
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 17 for (i = 0; i < count; i++) {
553
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 8 if (bytestream2_get_bytes_left(&gbc) < 2 * (count - i))
554 ✗ return AVERROR_INVALIDDATA;
555 8 size = bytestream2_get_be16(&gbc);
556
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 8 if (bytestream2_get_bytes_left(&gbc) < size)
557 ✗ return AVERROR_INVALIDDATA;
558 8 bytestream2_skip(&gbc, size);
559 }
560 9 end = bytestream2_tell(&gbc);
561
562 9 err = ff_h2645_packet_split(&priv->read_packet,
563 9 frag->data + start, end - start,
564 ctx->log_ctx, 1, 2, AV_CODEC_ID_H264, 1, 1);
565
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 9 if (err < 0) {
566 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split AVCC SPS array.\n");
567 ✗ return err;
568 }
569 9 err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
570
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 9 if (err < 0)
571 ✗ return err;
572
573 // PPS array.
574 9 count = bytestream2_get_byte(&gbc);
575 9 start = bytestream2_tell(&gbc);
576
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 17 for (i = 0; i < count; i++) {
577
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 8 if (bytestream2_get_bytes_left(&gbc) < 2 * (count - i))
578 ✗ return AVERROR_INVALIDDATA;
579 8 size = bytestream2_get_be16(&gbc);
580
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 8 if (bytestream2_get_bytes_left(&gbc) < size)
581 ✗ return AVERROR_INVALIDDATA;
582 8 bytestream2_skip(&gbc, size);
583 }
584 9 end = bytestream2_tell(&gbc);
585
586 9 err = ff_h2645_packet_split(&priv->read_packet,
587 9 frag->data + start, end - start,
588 ctx->log_ctx, 1, 2, AV_CODEC_ID_H264, 1, 1);
589
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 9 if (err < 0) {
590 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split AVCC PPS array.\n");
591 ✗ return err;
592 }
593 9 err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
594
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 9 if (err < 0)
595 ✗ return err;
596
597
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 9 if (bytestream2_get_bytes_left(&gbc) > 0) {
598 2 av_log(ctx->log_ctx, AV_LOG_WARNING, "%u bytes left at end of AVCC "
599 "header.\n", bytestream2_get_bytes_left(&gbc));
600 }
601
602
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 9957 } else if (header && frag->data[0] && codec_id == AV_CODEC_ID_HEVC) {
603 // HVCC header.
604 size_t size, start, end;
605 int i, j, nb_arrays, nal_unit_type, nb_nals, version;
606
607 ✗ priv->mp4 = 1;
608
609 ✗ bytestream2_init(&gbc, frag->data, frag->data_size);
610
611 ✗ if (bytestream2_get_bytes_left(&gbc) < 23)
612 ✗ return AVERROR_INVALIDDATA;
613
614 ✗ version = bytestream2_get_byte(&gbc);
615 ✗ if (version != 1) {
616 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Invalid HVCC header: "
617 "first byte %u.\n", version);
618 ✗ return AVERROR_INVALIDDATA;
619 }
620
621 ✗ bytestream2_skip(&gbc, 20);
622 ✗ priv->nal_length_size = (bytestream2_get_byte(&gbc) & 3) + 1;
623
624 ✗ nb_arrays = bytestream2_get_byte(&gbc);
625 ✗ for (i = 0; i < nb_arrays; i++) {
626 ✗ nal_unit_type = bytestream2_get_byte(&gbc) & 0x3f;
627 ✗ nb_nals = bytestream2_get_be16(&gbc);
628
629 ✗ start = bytestream2_tell(&gbc);
630 ✗ for (j = 0; j < nb_nals; j++) {
631 ✗ if (bytestream2_get_bytes_left(&gbc) < 2)
632 ✗ return AVERROR_INVALIDDATA;
633 ✗ size = bytestream2_get_be16(&gbc);
634 ✗ if (bytestream2_get_bytes_left(&gbc) < size)
635 ✗ return AVERROR_INVALIDDATA;
636 ✗ bytestream2_skip(&gbc, size);
637 }
638 ✗ end = bytestream2_tell(&gbc);
639
640 ✗ err = ff_h2645_packet_split(&priv->read_packet,
641 ✗ frag->data + start, end - start,
642 ctx->log_ctx, 1, 2, AV_CODEC_ID_HEVC, 1, 1);
643 ✗ if (err < 0) {
644 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split "
645 "HVCC array %d (%d NAL units of type %d).\n",
646 i, nb_nals, nal_unit_type);
647 ✗ return err;
648 }
649 ✗ err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
650 ✗ if (err < 0)
651 ✗ return err;
652 }
653
654
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 9957 } else if(header && frag->data[0] && codec_id == AV_CODEC_ID_VVC) {
655 // VVCC header.
656 int ptl_present_flag, num_arrays;
657 int b, i, j;
658
659 ✗ priv->mp4 = 1;
660
661 ✗ bytestream2_init(&gbc, frag->data, frag->data_size);
662
663 ✗ b = bytestream2_get_byte(&gbc);
664 ✗ priv->nal_length_size = ((b >> 1) & 3) + 1;
665 ✗ ptl_present_flag = b & 1;
666
667 ✗ if(ptl_present_flag) {
668 int num_sublayers, num_bytes_constraint_info, num_sub_profiles;
669 ✗ num_sublayers = (bytestream2_get_be16u(&gbc) >> 4) & 7;
670 ✗ bytestream2_skip(&gbc, 1);
671
672 // begin VvcPTLRecord(num_sublayers);
673 ✗ num_bytes_constraint_info = bytestream2_get_byte(&gbc) & 0x3f;
674 ✗ bytestream2_skip(&gbc, 2 + num_bytes_constraint_info);
675 ✗ if(num_sublayers > 1) {
676 ✗ int count_present_flags = 0;
677 ✗ b = bytestream2_get_byte(&gbc);
678 ✗ for(i = num_sublayers - 2; i >= 0; i--) {
679 ✗ if((b >> (7 - (num_sublayers - 2 - i))) & 0x01)
680 ✗ count_present_flags++;
681 }
682 ✗ bytestream2_skip(&gbc, count_present_flags);
683 }
684 ✗ num_sub_profiles = bytestream2_get_byte(&gbc);
685 ✗ bytestream2_skip(&gbc, num_sub_profiles * 4);
686 // end VvcPTLRecord(num_sublayers);
687
688 ✗ bytestream2_skip(&gbc, 3 * 2);
689 }
690
691 ✗ num_arrays = bytestream2_get_byte(&gbc);
692 ✗ for(j = 0; j < num_arrays; j++) {
693 size_t start, end, size;
694 ✗ int nal_unit_type = bytestream2_get_byte(&gbc) & 0x1f;
695 ✗ unsigned int num_nalus = 1;
696 ✗ if(nal_unit_type != VVC_DCI_NUT && nal_unit_type != VVC_OPI_NUT)
697 ✗ num_nalus = bytestream2_get_be16(&gbc);
698
699 ✗ start = bytestream2_tell(&gbc);
700 ✗ for(i = 0; i < num_nalus; i++) {
701 ✗ size = bytestream2_get_be16(&gbc);
702 ✗ bytestream2_skip(&gbc, size);
703 }
704 ✗ end = bytestream2_tell(&gbc);
705
706 ✗ err = ff_h2645_packet_split(&priv->read_packet,
707 ✗ frag->data + start, end - start,
708 ctx->log_ctx, 1, 2, AV_CODEC_ID_VVC, 1, 1);
709 ✗ if (err < 0) {
710 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Failed to split "
711 "VVCC array %d (%d NAL units of type %d).\n",
712 i, num_nalus, nal_unit_type);
713 ✗ return err;
714 }
715 ✗ err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
716 ✗ if (err < 0)
717 ✗ return err;
718 }
719 } else {
720 // Annex B, or later MP4 with already-known parameters.
721
722 9957 err = ff_h2645_packet_split(&priv->read_packet,
723 9957 frag->data, frag->data_size,
724 ctx->log_ctx,
725 priv->mp4, priv->nal_length_size,
726 codec_id, 1, 1);
727
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 9957 if (err < 0)
728 ✗ return err;
729
730 9957 err = cbs_h2645_fragment_add_nals(ctx, frag, &priv->read_packet);
731
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 9957 if (err < 0)
732 ✗ return err;
733 }
734
735 9966 return 0;
736 }
737
738 #define cbs_h2645_replace_ps(h26n, ps_name, ps_var, id_element) \
739 static int cbs_h26 ## h26n ## _replace_ ## ps_var(CodedBitstreamContext *ctx, \
740 CodedBitstreamUnit *unit) \
741 { \
742 CodedBitstreamH26 ## h26n ## Context *priv = ctx->priv_data; \
743 H26 ## h26n ## Raw ## ps_name *ps_var = unit->content; \
744 unsigned int id = ps_var->id_element; \
745 int err = ff_cbs_make_unit_refcounted(ctx, unit); \
746 if (err < 0) \
747 return err; \
748 if (priv->ps_var[id] == priv->active_ ## ps_var) \
749 priv->active_ ## ps_var = NULL ; \
750 av_assert0(unit->content_ref); \
751 ff_refstruct_replace(&priv->ps_var[id], unit->content_ref); \
752 return 0; \
753 }
754
755
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 146 cbs_h2645_replace_ps(4, SPS, sps, seq_parameter_set_id)
756
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 2990 cbs_h2645_replace_ps(4, PPS, pps, pic_parameter_set_id)
757
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 112 cbs_h2645_replace_ps(5, VPS, vps, vps_video_parameter_set_id)
758
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 116 cbs_h2645_replace_ps(5, SPS, sps, sps_seq_parameter_set_id)
759
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 566 cbs_h2645_replace_ps(5, PPS, pps, pps_pic_parameter_set_id)
760
761 #define cbs_h266_replace_ps(h26n, ps_name, ps_var, id_element) \
762 static int cbs_h26 ## h26n ## _replace_ ## ps_var(CodedBitstreamContext *ctx, \
763 CodedBitstreamUnit *unit) \
764 { \
765 CodedBitstreamH26 ## h26n ## Context *priv = ctx->priv_data; \
766 H26 ## h26n ## Raw ## ps_name *ps_var = unit->content; \
767 unsigned int id = ps_var->id_element; \
768 int err = ff_cbs_make_unit_refcounted(ctx, unit); \
769 if (err < 0) \
770 return err; \
771 av_assert0(unit->content_ref); \
772 ff_refstruct_replace(&priv->ps_var[id], unit->content_ref); \
773 return 0; \
774 }
775
776
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 12 cbs_h266_replace_ps(6, VPS, vps, vps_video_parameter_set_id)
777
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 1005 cbs_h266_replace_ps(6, SPS, sps, sps_seq_parameter_set_id)
778
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 1173 cbs_h266_replace_ps(6, PPS, pps, pps_pic_parameter_set_id)
779
780 6390 static int cbs_h266_replace_ph(CodedBitstreamContext *ctx,
781 CodedBitstreamUnit *unit,
782 H266RawPictureHeader *ph)
783 {
784 6390 CodedBitstreamH266Context *h266 = ctx->priv_data;
785 int err;
786
787 6390 err = ff_cbs_make_unit_refcounted(ctx, unit);
788
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 6390 if (err < 0)
789 ✗ return err;
790
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 6390 av_assert0(unit->content_ref);
791 6390 ff_refstruct_replace(&h266->ph_ref, unit->content_ref);
792 6390 h266->ph = ph;
793 6390 return 0;
794 }
795
796 9230 static int cbs_h264_read_nal_unit(CodedBitstreamContext *ctx,
797 CodedBitstreamUnit *unit)
798 {
799 GetBitContext gbc;
800 int err;
801
802 9230 err = init_get_bits(&gbc, unit->data, 8 * unit->data_size);
803
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 9230 if (err < 0)
804 ✗ return err;
805
806 9230 err = ff_cbs_alloc_unit_content(ctx, unit);
807
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 9230 if (err < 0)
808 ✗ return err;
809
810
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 9230 switch (unit->type) {
811 73 case H264_NAL_SPS:
812 {
813 73 H264RawSPS *sps = unit->content;
814
815 73 err = cbs_h264_read_sps(ctx, &gbc, sps);
816
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 73 if (err < 0)
817 ✗ return err;
818
819 73 err = cbs_h264_replace_sps(ctx, unit);
820
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 73 if (err < 0)
821 ✗ return err;
822 }
823 73 break;
824
825 ✗ case H264_NAL_SPS_EXT:
826 {
827 ✗ err = cbs_h264_read_sps_extension(ctx, &gbc, unit->content);
828 ✗ if (err < 0)
829 ✗ return err;
830 }
831 ✗ break;
832
833 1495 case H264_NAL_PPS:
834 {
835 1495 H264RawPPS *pps = unit->content;
836
837 1495 err = cbs_h264_read_pps(ctx, &gbc, pps);
838
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 1495 if (err < 0)
839 ✗ return err;
840
841 1495 err = cbs_h264_replace_pps(ctx, unit);
842
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 1495 if (err < 0)
843 ✗ return err;
844 }
845 1495 break;
846
847 5973 case H264_NAL_SLICE:
848 case H264_NAL_IDR_SLICE:
849 case H264_NAL_AUXILIARY_SLICE:
850 {
851 5973 H264RawSlice *slice = unit->content;
852 int pos, len;
853
854 5973 err = cbs_h264_read_slice_header(ctx, &gbc, &slice->header);
855
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 5973 if (err < 0)
856 ✗ return err;
857
858
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 5973 if (!cbs_h2645_read_more_rbsp_data(&gbc))
859 ✗ return AVERROR_INVALIDDATA;
860
861 5973 pos = get_bits_count(&gbc);
862 5973 len = unit->data_size;
863
864 5973 slice->data_size = len - pos / 8;
865 5973 slice->data_ref = av_buffer_ref(unit->data_ref);
866
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 5973 if (!slice->data_ref)
867 ✗ return AVERROR(ENOMEM);
868 5973 slice->data = unit->data + pos / 8;
869 5973 slice->data_bit_start = pos % 8;
870 }
871 5973 break;
872
873 739 case H264_NAL_AUD:
874 {
875 739 err = cbs_h264_read_aud(ctx, &gbc, unit->content);
876
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 739 if (err < 0)
877 ✗ return err;
878 }
879 739 break;
880
881 913 case H264_NAL_SEI:
882 {
883 913 err = cbs_h264_read_sei(ctx, &gbc, unit->content);
884
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 913 if (err < 0)
885 ✗ return err;
886 }
887 913 break;
888
889 34 case H264_NAL_FILLER_DATA:
890 {
891 34 err = cbs_h264_read_filler(ctx, &gbc, unit->content);
892
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 34 if (err < 0)
893 1 return err;
894 }
895 33 break;
896
897 3 case H264_NAL_END_SEQUENCE:
898 case H264_NAL_END_STREAM:
899 {
900 3 err = (unit->type == H264_NAL_END_SEQUENCE ?
901
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 3 cbs_h264_read_end_of_sequence :
902 3 cbs_h264_read_end_of_stream)(ctx, &gbc, unit->content);
903
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 3 if (err < 0)
904 ✗ return err;
905 }
906 3 break;
907
908 ✗ default:
909 ✗ return AVERROR(ENOSYS);
910 }
911
912 9229 return 0;
913 }
914
915 9372 static int cbs_h265_read_nal_unit(CodedBitstreamContext *ctx,
916 CodedBitstreamUnit *unit)
917 {
918 GetBitContext gbc;
919 int err;
920
921 9372 err = init_get_bits(&gbc, unit->data, 8 * unit->data_size);
922
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 9372 if (err < 0)
923 ✗ return err;
924
925 9372 err = ff_cbs_alloc_unit_content(ctx, unit);
926
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 9372 if (err < 0)
927 ✗ return err;
928
929
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 9372 switch (unit->type) {
930 56 case HEVC_NAL_VPS:
931 {
932 56 H265RawVPS *vps = unit->content;
933
934 56 err = cbs_h265_read_vps(ctx, &gbc, vps);
935
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 56 if (err < 0)
936 ✗ return err;
937
938 56 err = cbs_h265_replace_vps(ctx, unit);
939
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 56 if (err < 0)
940 ✗ return err;
941 }
942 56 break;
943 58 case HEVC_NAL_SPS:
944 {
945 58 H265RawSPS *sps = unit->content;
946
947 58 err = cbs_h265_read_sps(ctx, &gbc, sps);
948
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 58 if (err < 0)
949 ✗ return err;
950
951 58 err = cbs_h265_replace_sps(ctx, unit);
952
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 58 if (err < 0)
953 ✗ return err;
954 }
955 58 break;
956
957 283 case HEVC_NAL_PPS:
958 {
959 283 H265RawPPS *pps = unit->content;
960
961 283 err = cbs_h265_read_pps(ctx, &gbc, pps);
962
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 283 if (err < 0)
963 ✗ return err;
964
965 283 err = cbs_h265_replace_pps(ctx, unit);
966
1/2
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 283 if (err < 0)
967 ✗ return err;
968 }
969 283 break;
970
971 7188 case HEVC_NAL_TRAIL_N:
972 case HEVC_NAL_TRAIL_R:
973 case HEVC_NAL_TSA_N:
974 case HEVC_NAL_TSA_R:
975 case HEVC_NAL_STSA_N:
976 case HEVC_NAL_STSA_R:
977 case HEVC_NAL_RADL_N:
978 case HEVC_NAL_RADL_R:
979 case HEVC_NAL_RASL_N:
980 case HEVC_NAL_RASL_R:
981 case HEVC_NAL_BLA_W_LP:
982 case HEVC_NAL_BLA_W_RADL:
983 case HEVC_NAL_BLA_N_LP:
984 case HEVC_NAL_IDR_W_RADL:
985 case HEVC_NAL_IDR_N_LP:
986 case HEVC_NAL_CRA_NUT:
987 {
988 7188 H265RawSlice *slice = unit->content;
989 int pos, len;
990
991 7188 err = cbs_h265_read_slice_segment_header(ctx, &gbc, &slice->header);
992
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 7188 if (err < 0)
993 ✗ return err;
994
995
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 7188 if (!cbs_h2645_read_more_rbsp_data(&gbc))
996 ✗ return AVERROR_INVALIDDATA;
997
998 7188 pos = get_bits_count(&gbc);
999 7188 len = unit->data_size;
1000
1001 7188 slice->data_size = len - pos / 8;
1002 7188 slice->data_ref = av_buffer_ref(unit->data_ref);
1003
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 7188 if (!slice->data_ref)
1004 ✗ return AVERROR(ENOMEM);
1005 7188 slice->data = unit->data + pos / 8;
1006 7188 slice->data_bit_start = pos % 8;
1007 }
1008 7188 break;
1009
1010 60 case HEVC_NAL_AUD:
1011 {
1012 60 err = cbs_h265_read_aud(ctx, &gbc, unit->content);
1013
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 60 if (err < 0)
1014 ✗ return err;
1015 }
1016 60 break;
1017
1018 1727 case HEVC_NAL_SEI_PREFIX:
1019 case HEVC_NAL_SEI_SUFFIX:
1020 {
1021 1727 err = cbs_h265_read_sei(ctx, &gbc, unit->content,
1022 1727 unit->type == HEVC_NAL_SEI_PREFIX);
1023
1024
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✓ Branch 1 taken 1727 times.
 1727 if (err < 0)
1025 ✗ return err;
1026 }
1027 1727 break;
1028
1029 ✗ default:
1030 ✗ return AVERROR(ENOSYS);
1031 }
1032
1033 9372 return 0;
1034 }
1035
1036 9134 static int cbs_h266_read_nal_unit(CodedBitstreamContext *ctx,
1037 CodedBitstreamUnit *unit)
1038 {
1039 GetBitContext gbc;
1040 int err;
1041
1042 9134 err = init_get_bits8(&gbc, unit->data, unit->data_size);
1043
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 9134 if (err < 0)
1044 ✗ return err;
1045
1046 9134 err = ff_cbs_alloc_unit_content(ctx, unit);
1047
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 9134 if (err < 0)
1048 ✗ return err;
1049
1050
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✓ Branch 6 taken 54 times.
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✓ Branch 8 taken 24 times.
✓ Branch 9 taken 2190 times.
✗ Branch 10 not taken.
 9134 switch (unit->type) {
1051 1 case VVC_DCI_NUT:
1052 {
1053 1 err = cbs_h266_read_dci(ctx, &gbc, unit->content);
1054
1055
1/2
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 1 if (err < 0)
1056 ✗ return err;
1057 }
1058 1 break;
1059 1 case VVC_OPI_NUT:
1060 {
1061 1 err = cbs_h266_read_opi(ctx, &gbc, unit->content);
1062
1063
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 1 if (err < 0)
1064 ✗ return err;
1065 }
1066 1 break;
1067 8 case VVC_VPS_NUT:
1068 {
1069 8 H266RawVPS *vps = unit->content;
1070
1071 8 err = cbs_h266_read_vps(ctx, &gbc, vps);
1072
1/2
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 8 if (err < 0)
1073 ✗ return err;
1074
1075 8 err = cbs_h266_replace_vps(ctx, unit);
1076
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 8 if (err < 0)
1077 ✗ return err;
1078 }
1079 8 break;
1080 670 case VVC_SPS_NUT:
1081 {
1082 670 H266RawSPS *sps = unit->content;
1083
1084 670 err = cbs_h266_read_sps(ctx, &gbc, sps);
1085
1/2
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✓ Branch 1 taken 670 times.
 670 if (err < 0)
1086 ✗ return err;
1087
1088 670 err = cbs_h266_replace_sps(ctx, unit);
1089
1/2
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✓ Branch 1 taken 670 times.
 670 if (err < 0)
1090 ✗ return err;
1091 }
1092 670 break;
1093
1094 782 case VVC_PPS_NUT:
1095 {
1096 782 H266RawPPS *pps = unit->content;
1097
1098 782 err = cbs_h266_read_pps(ctx, &gbc, pps);
1099
1/2
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 782 if (err < 0)
1100 ✗ return err;
1101
1102 782 err = cbs_h266_replace_pps(ctx, unit);
1103
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✓ Branch 1 taken 782 times.
 782 if (err < 0)
1104 ✗ return err;
1105 }
1106 782 break;
1107
1108 228 case VVC_PREFIX_APS_NUT:
1109 case VVC_SUFFIX_APS_NUT:
1110 {
1111 228 err = cbs_h266_read_aps(ctx, &gbc, unit->content,
1112 228 unit->type == VVC_PREFIX_APS_NUT);
1113
1114
1/2
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✓ Branch 1 taken 228 times.
 228 if (err < 0)
1115 ✗ return err;
1116 }
1117 228 break;
1118 54 case VVC_PH_NUT:
1119 {
1120 54 H266RawPH *ph = unit->content;
1121 54 err = cbs_h266_read_ph(ctx, &gbc, ph);
1122
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 54 if (err < 0)
1123 ✗ return err;
1124 54 err = cbs_h266_replace_ph(ctx, unit, &ph->ph_picture_header);
1125
1/2
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✓ Branch 1 taken 54 times.
 54 if (err < 0)
1126 ✗ return err;
1127 }
1128 54 break;
1129
1130 5176 case VVC_TRAIL_NUT:
1131 case VVC_STSA_NUT:
1132 case VVC_RADL_NUT:
1133 case VVC_RASL_NUT:
1134 case VVC_IDR_W_RADL:
1135 case VVC_IDR_N_LP:
1136 case VVC_CRA_NUT:
1137 case VVC_GDR_NUT:
1138 {
1139 5176 H266RawSlice *slice = unit->content;
1140 int pos, len;
1141
1142 5176 err = cbs_h266_read_slice_header(ctx, &gbc, &slice->header);
1143
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 5176 if (err < 0)
1144 ✗ return err;
1145
1146
1/2
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 5176 if (!cbs_h2645_read_more_rbsp_data(&gbc))
1147 ✗ return AVERROR_INVALIDDATA;
1148
1149 5176 pos = get_bits_count(&gbc);
1150 5176 len = unit->data_size;
1151
1152
2/2
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 5176 if (slice->header.sh_picture_header_in_slice_header_flag) {
1153 4206 err = cbs_h266_replace_ph(ctx, unit, &slice->header.sh_picture_header);
1154
1/2
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 4206 if (err < 0)
1155 ✗ return err;
1156 }
1157
1158 5176 slice->data_size = len - pos / 8;
1159 5176 slice->data_ref = av_buffer_ref(unit->data_ref);
1160
1/2
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 5176 if (!slice->data_ref)
1161 ✗ return AVERROR(ENOMEM);
1162 5176 slice->data = unit->data + pos / 8;
1163 5176 slice->data_bit_start = pos % 8;
1164 }
1165 5176 break;
1166
1167 24 case VVC_AUD_NUT:
1168 {
1169 24 err = cbs_h266_read_aud(ctx, &gbc, unit->content);
1170
1/2
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 24 if (err < 0)
1171 ✗ return err;
1172 }
1173 24 break;
1174
1175 2190 case VVC_PREFIX_SEI_NUT:
1176 case VVC_SUFFIX_SEI_NUT:
1177 {
1178 2190 err = cbs_h266_read_sei(ctx, &gbc, unit->content,
1179 2190 unit->type == VVC_PREFIX_SEI_NUT);
1180
1181
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2190 times.
 2190 if (err < 0)
1182 ✗ return err;
1183 }
1184 2190 break;
1185
1186 ✗ default:
1187 ✗ return AVERROR(ENOSYS);
1188 }
1189 9134 return 0;
1190 }
1191
1192 14194 static int cbs_h2645_write_slice_data(CodedBitstreamContext *ctx,
1193 PutBitContext *pbc, const uint8_t *data,
1194 size_t data_size, int data_bit_start)
1195 {
1196 14194 size_t rest = data_size - (data_bit_start + 7) / 8;
1197 14194 const uint8_t *pos = data + data_bit_start / 8;
1198
1199
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 14194 av_assert0(data_bit_start >= 0 &&
1200 data_size > data_bit_start / 8);
1201
1202
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 14194 if (data_size * 8 + 8 > put_bits_left(pbc))
1203 ✗ return AVERROR(ENOSPC);
1204
1205
2/2
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 14194 if (!rest)
1206 1 goto rbsp_stop_one_bit;
1207
1208 // First copy the remaining bits of the first byte
1209 // The above check ensures that we do not accidentally
1210 // copy beyond the rbsp_stop_one_bit.
1211
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 14193 if (data_bit_start % 8)
1212 3729 put_bits(pbc, 8 - data_bit_start % 8,
1213 3729 *pos++ & MAX_UINT_BITS(8 - data_bit_start % 8));
1214
1215
2/2
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 14193 if (put_bits_count(pbc) % 8 == 0) {
1216 // If the writer is aligned at this point,
1217 // memcpy can be used to improve performance.
1218 // This happens normally for CABAC.
1219 14084 flush_put_bits(pbc);
1220 14084 memcpy(put_bits_ptr(pbc), pos, rest);
1221 14084 skip_put_bytes(pbc, rest);
1222 } else {
1223 // If not, we have to copy manually.
1224 // rbsp_stop_one_bit forces us to special-case
1225 // the last byte.
1226 uint8_t temp;
1227 int i;
1228
1229
2/2
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 98871 for (; rest > 4; rest -= 4, pos += 4)
1230 98762 put_bits32(pbc, AV_RB32(pos));
1231
1232
2/2
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 274 for (; rest > 1; rest--, pos++)
1233 165 put_bits(pbc, 8, *pos);
1234
1235 109 rbsp_stop_one_bit:
1236
2/2
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 110 temp = rest ? *pos : *pos & MAX_UINT_BITS(8 - data_bit_start % 8);
1237
1238
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 110 av_assert0(temp);
1239 110 i = ff_ctz(*pos);
1240 110 temp = temp >> i;
1241
2/2
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 110 i = rest ? (8 - i) : (8 - i - data_bit_start % 8);
1242 110 put_bits(pbc, i, temp);
1243
2/2
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✓ Branch 2 taken 18 times.
 110 if (put_bits_count(pbc) % 8)
1244 92 put_bits(pbc, 8 - put_bits_count(pbc) % 8, 0);
1245 }
1246
1247 14194 return 0;
1248 }
1249
1250 7953 static int cbs_h264_write_nal_unit(CodedBitstreamContext *ctx,
1251 CodedBitstreamUnit *unit,
1252 PutBitContext *pbc)
1253 {
1254 int err;
1255
1256
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 7953 switch (unit->type) {
1257 73 case H264_NAL_SPS:
1258 {
1259 73 H264RawSPS *sps = unit->content;
1260
1261 73 err = cbs_h264_write_sps(ctx, pbc, sps);
1262
1/2
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 73 if (err < 0)
1263 ✗ return err;
1264
1265 73 err = cbs_h264_replace_sps(ctx, unit);
1266
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✓ Branch 1 taken 73 times.
 73 if (err < 0)
1267 ✗ return err;
1268 }
1269 73 break;
1270
1271 ✗ case H264_NAL_SPS_EXT:
1272 {
1273 ✗ H264RawSPSExtension *sps_ext = unit->content;
1274
1275 ✗ err = cbs_h264_write_sps_extension(ctx, pbc, sps_ext);
1276 ✗ if (err < 0)
1277 ✗ return err;
1278 }
1279 ✗ break;
1280
1281 1495 case H264_NAL_PPS:
1282 {
1283 1495 H264RawPPS *pps = unit->content;
1284
1285 1495 err = cbs_h264_write_pps(ctx, pbc, pps);
1286
1/2
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✓ Branch 1 taken 1495 times.
 1495 if (err < 0)
1287 ✗ return err;
1288
1289 1495 err = cbs_h264_replace_pps(ctx, unit);
1290
1/2
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✓ Branch 1 taken 1495 times.
 1495 if (err < 0)
1291 ✗ return err;
1292 }
1293 1495 break;
1294
1295 5575 case H264_NAL_SLICE:
1296 case H264_NAL_IDR_SLICE:
1297 case H264_NAL_AUXILIARY_SLICE:
1298 {
1299 5575 H264RawSlice *slice = unit->content;
1300
1301 5575 err = cbs_h264_write_slice_header(ctx, pbc, &slice->header);
1302
1/2
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 5575 if (err < 0)
1303 ✗ return err;
1304
1305
1/2
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✗ Branch 1 not taken.
 5575 if (slice->data) {
1306 5575 err = cbs_h2645_write_slice_data(ctx, pbc, slice->data,
1307 slice->data_size,
1308 slice->data_bit_start);
1309
1/2
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 5575 if (err < 0)
1310 ✗ return err;
1311 } else {
1312 // No slice data - that was just the header.
1313 // (Bitstream may be unaligned!)
1314 }
1315 }
1316 5575 break;
1317
1318 302 case H264_NAL_AUD:
1319 {
1320 302 err = cbs_h264_write_aud(ctx, pbc, unit->content);
1321
1/2
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✓ Branch 1 taken 302 times.
 302 if (err < 0)
1322 ✗ return err;
1323 }
1324 302 break;
1325
1326 505 case H264_NAL_SEI:
1327 {
1328 505 err = cbs_h264_write_sei(ctx, pbc, unit->content);
1329
1/2
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✓ Branch 1 taken 505 times.
 505 if (err < 0)
1330 ✗ return err;
1331 }
1332 505 break;
1333
1334 ✗ case H264_NAL_FILLER_DATA:
1335 {
1336 ✗ err = cbs_h264_write_filler(ctx, pbc, unit->content);
1337 ✗ if (err < 0)
1338 ✗ return err;
1339 }
1340 ✗ break;
1341
1342 1 case H264_NAL_END_SEQUENCE:
1343 {
1344 1 err = cbs_h264_write_end_of_sequence(ctx, pbc, unit->content);
1345
1/2
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✓ Branch 1 taken 1 times.
 1 if (err < 0)
1346 ✗ return err;
1347 }
1348 1 break;
1349
1350 2 case H264_NAL_END_STREAM:
1351 {
1352 2 err = cbs_h264_write_end_of_stream(ctx, pbc, unit->content);
1353
1/2
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✓ Branch 1 taken 2 times.
 2 if (err < 0)
1354 ✗ return err;
1355 }
1356 2 break;
1357
1358 ✗ default:
1359 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for "
1360 "NAL unit type %"PRIu32".\n", unit->type);
1361 ✗ return AVERROR_PATCHWELCOME;
1362 }
1363
1364 7953 return 0;
1365 }
1366
1367 8050 static int cbs_h265_write_nal_unit(CodedBitstreamContext *ctx,
1368 CodedBitstreamUnit *unit,
1369 PutBitContext *pbc)
1370 {
1371 int err;
1372
1373
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 8050 switch (unit->type) {
1374 56 case HEVC_NAL_VPS:
1375 {
1376 56 H265RawVPS *vps = unit->content;
1377
1378 56 err = cbs_h265_write_vps(ctx, pbc, vps);
1379
1/2
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✓ Branch 1 taken 56 times.
 56 if (err < 0)
1380 ✗ return err;
1381
1382 56 err = cbs_h265_replace_vps(ctx, unit);
1383
1/2
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✓ Branch 1 taken 56 times.
 56 if (err < 0)
1384 ✗ return err;
1385 }
1386 56 break;
1387
1388 58 case HEVC_NAL_SPS:
1389 {
1390 58 H265RawSPS *sps = unit->content;
1391
1392 58 err = cbs_h265_write_sps(ctx, pbc, sps);
1393
1/2
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✓ Branch 1 taken 58 times.
 58 if (err < 0)
1394 ✗ return err;
1395
1396 58 err = cbs_h265_replace_sps(ctx, unit);
1397
1/2
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✓ Branch 1 taken 58 times.
 58 if (err < 0)
1398 ✗ return err;
1399 }
1400 58 break;
1401
1402 283 case HEVC_NAL_PPS:
1403 {
1404 283 H265RawPPS *pps = unit->content;
1405
1406 283 err = cbs_h265_write_pps(ctx, pbc, pps);
1407
1/2
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✓ Branch 1 taken 283 times.
 283 if (err < 0)
1408 ✗ return err;
1409
1410 283 err = cbs_h265_replace_pps(ctx, unit);
1411
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 283 times.
 283 if (err < 0)
1412 ✗ return err;
1413 }
1414 283 break;
1415
1416 6031 case HEVC_NAL_TRAIL_N:
1417 case HEVC_NAL_TRAIL_R:
1418 case HEVC_NAL_TSA_N:
1419 case HEVC_NAL_TSA_R:
1420 case HEVC_NAL_STSA_N:
1421 case HEVC_NAL_STSA_R:
1422 case HEVC_NAL_RADL_N:
1423 case HEVC_NAL_RADL_R:
1424 case HEVC_NAL_RASL_N:
1425 case HEVC_NAL_RASL_R:
1426 case HEVC_NAL_BLA_W_LP:
1427 case HEVC_NAL_BLA_W_RADL:
1428 case HEVC_NAL_BLA_N_LP:
1429 case HEVC_NAL_IDR_W_RADL:
1430 case HEVC_NAL_IDR_N_LP:
1431 case HEVC_NAL_CRA_NUT:
1432 {
1433 6031 H265RawSlice *slice = unit->content;
1434
1435 6031 err = cbs_h265_write_slice_segment_header(ctx, pbc, &slice->header);
1436
1/2
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 6031 if (err < 0)
1437 ✗ return err;
1438
1439
1/2
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✗ Branch 1 not taken.
 6031 if (slice->data) {
1440 6031 err = cbs_h2645_write_slice_data(ctx, pbc, slice->data,
1441 slice->data_size,
1442 slice->data_bit_start);
1443
1/2
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 6031 if (err < 0)
1444 ✗ return err;
1445 } else {
1446 // No slice data - that was just the header.
1447 }
1448 }
1449 6031 break;
1450
1451 60 case HEVC_NAL_AUD:
1452 {
1453 60 err = cbs_h265_write_aud(ctx, pbc, unit->content);
1454
1/2
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 60 if (err < 0)
1455 ✗ return err;
1456 }
1457 60 break;
1458
1459 1562 case HEVC_NAL_SEI_PREFIX:
1460 case HEVC_NAL_SEI_SUFFIX:
1461 {
1462 1562 err = cbs_h265_write_sei(ctx, pbc, unit->content,
1463 1562 unit->type == HEVC_NAL_SEI_PREFIX);
1464
1465
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1562 times.
 1562 if (err < 0)
1466 ✗ return err;
1467 }
1468 1562 break;
1469
1470 ✗ default:
1471 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for "
1472 "NAL unit type %"PRIu32".\n", unit->type);
1473 ✗ return AVERROR_PATCHWELCOME;
1474 }
1475
1476 8050 return 0;
1477 }
1478
1479 756 static int cbs_h264_discarded_nal_unit(CodedBitstreamContext *ctx,
1480 const CodedBitstreamUnit *unit,
1481 enum AVDiscard skip)
1482 {
1483 H264RawNALUnitHeader *header;
1484 H264RawSliceHeader *slice;
1485 int slice_type_i, slice_type_b, slice_type_si;
1486
1487
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 756 if (skip <= AVDISCARD_DEFAULT)
1488 ✗ return 0;
1489
1490 // keep non-VCL
1491
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 756 if (unit->type != H264_NAL_SLICE &&
1492
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 256 unit->type != H264_NAL_IDR_SLICE &&
1493
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 252 unit->type != H264_NAL_AUXILIARY_SLICE)
1494 252 return 0;
1495
1496
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 504 if (skip >= AVDISCARD_ALL)
1497 ✗ return 1;
1498
1499
4/4
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 504 if (skip >= AVDISCARD_NONKEY && unit->type != H264_NAL_IDR_SLICE)
1500 125 return 1;
1501
1502 379 header = (H264RawNALUnitHeader *)unit->content;
1503
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 379 if (!header) {
1504 ✗ av_log(ctx->log_ctx, AV_LOG_WARNING,
1505 "h264 nal unit header is null, missing decompose?\n");
1506 ✗ return 0;
1507 }
1508
1509
3/4
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 379 if (skip >= AVDISCARD_NONREF && !header->nal_ref_idc)
1510 183 return 1;
1511
1512 196 slice = (H264RawSliceHeader *)unit->content;
1513
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 196 if (!slice) {
1514 ✗ av_log(ctx->log_ctx, AV_LOG_WARNING,
1515 "h264 slice header is null, missing decompose?\n");
1516 ✗ return 0;
1517 }
1518
1519 196 slice_type_i = slice->slice_type % 5 == 2;
1520 196 slice_type_b = slice->slice_type % 5 == 1;
1521 196 slice_type_si = slice->slice_type % 5 == 4;
1522
1523
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 196 if (skip >= AVDISCARD_BIDIR && slice_type_b)
1524 60 return 1;
1525
5/6
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 136 if (skip >= AVDISCARD_NONINTRA && !slice_type_i && !slice_type_si)
1526 29 return 1;
1527
1528 107 return 0;
1529 }
1530
1531 536 static int cbs_h265_discarded_nal_unit(CodedBitstreamContext *ctx,
1532 const CodedBitstreamUnit *unit,
1533 enum AVDiscard skip)
1534 {
1535 H265RawSliceHeader *slice;
1536
1537
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 536 if (skip <= AVDISCARD_DEFAULT)
1538 ✗ return 0;
1539
1540
3/3
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✓ Branch 2 taken 204 times.
 536 switch (unit->type) {
1541 4 case HEVC_NAL_BLA_W_LP:
1542 case HEVC_NAL_BLA_W_RADL:
1543 case HEVC_NAL_BLA_N_LP:
1544 case HEVC_NAL_IDR_W_RADL:
1545 case HEVC_NAL_IDR_N_LP:
1546 case HEVC_NAL_CRA_NUT:
1547 // IRAP slice
1548
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 4 if (skip < AVDISCARD_ALL)
1549 4 return 0;
1550 ✗ break;
1551
1552 328 case HEVC_NAL_TRAIL_R:
1553 case HEVC_NAL_TRAIL_N:
1554 case HEVC_NAL_TSA_N:
1555 case HEVC_NAL_TSA_R:
1556 case HEVC_NAL_STSA_N:
1557 case HEVC_NAL_STSA_R:
1558 case HEVC_NAL_RADL_N:
1559 case HEVC_NAL_RADL_R:
1560 case HEVC_NAL_RASL_N:
1561 case HEVC_NAL_RASL_R:
1562 // Slice
1563 328 break;
1564 204 default:
1565 // Don't discard non-slice nal.
1566 204 return 0;
1567 }
1568
1569
2/2
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 328 if (skip >= AVDISCARD_NONKEY)
1570 47 return 1;
1571
1572 281 slice = (H265RawSliceHeader *)unit->content;
1573
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 281 if (!slice) {
1574 ✗ av_log(ctx->log_ctx, AV_LOG_WARNING,
1575 "h265 slice header is null, missing decompose?\n");
1576 ✗ return 0;
1577 }
1578
1579
3/4
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✗ Branch 3 not taken.
 281 if (skip >= AVDISCARD_NONINTRA && slice->slice_type != HEVC_SLICE_I)
1580 47 return 1;
1581
3/4
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✗ Branch 3 not taken.
 234 if (skip >= AVDISCARD_BIDIR && slice->slice_type == HEVC_SLICE_B)
1582 47 return 1;
1583
1584
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✗ Branch 1 not taken.
 187 if (skip >= AVDISCARD_NONREF) {
1585
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✓ Branch 1 taken 163 times.
 187 switch (unit->type) {
1586 24 case HEVC_NAL_TRAIL_N:
1587 case HEVC_NAL_TSA_N:
1588 case HEVC_NAL_STSA_N:
1589 case HEVC_NAL_RADL_N:
1590 case HEVC_NAL_RASL_N:
1591 case HEVC_NAL_VCL_N10:
1592 case HEVC_NAL_VCL_N12:
1593 case HEVC_NAL_VCL_N14:
1594 // non-ref
1595 24 return 1;
1596 163 default:
1597 163 break;
1598 }
1599 }
1600
1601 163 return 0;
1602 }
1603
1604 5777 static int cbs_h266_write_nal_unit(CodedBitstreamContext *ctx,
1605 CodedBitstreamUnit *unit,
1606 PutBitContext *pbc)
1607 {
1608 int err;
1609
1610
10/11
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✓ Branch 7 taken 2588 times.
✓ Branch 8 taken 12 times.
✓ Branch 9 taken 2190 times.
✗ Branch 10 not taken.
 5777 switch (unit->type) {
1611 1 case VVC_DCI_NUT:
1612 {
1613 1 H266RawDCI *dci = unit->content;
1614
1615 1 err = cbs_h266_write_dci(ctx, pbc, dci);
1616
1/2
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✓ Branch 1 taken 1 times.
 1 if (err < 0)
1617 ✗ return err;
1618 }
1619 1 break;
1620 1 case VVC_OPI_NUT:
1621 {
1622 1 H266RawOPI *opi = unit->content;
1623
1624 1 err = cbs_h266_write_opi(ctx, pbc, opi);
1625
1/2
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✓ Branch 1 taken 1 times.
 1 if (err < 0)
1626 ✗ return err;
1627 }
1628 1 break;
1629 4 case VVC_VPS_NUT:
1630 {
1631 4 H266RawVPS *vps = unit->content;
1632
1633 4 err = cbs_h266_write_vps(ctx, pbc, vps);
1634
1/2
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✓ Branch 1 taken 4 times.
 4 if (err < 0)
1635 ✗ return err;
1636
1637 4 err = cbs_h266_replace_vps(ctx, unit);
1638
1/2
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✓ Branch 1 taken 4 times.
 4 if (err < 0)
1639 ✗ return err;
1640 }
1641 4 break;
1642 335 case VVC_SPS_NUT:
1643 {
1644 335 H266RawSPS *sps = unit->content;
1645
1646 335 err = cbs_h266_write_sps(ctx, pbc, sps);
1647
1/2
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✓ Branch 1 taken 335 times.
 335 if (err < 0)
1648 ✗ return err;
1649
1650 335 err = cbs_h266_replace_sps(ctx, unit);
1651
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✓ Branch 1 taken 335 times.
 335 if (err < 0)
1652 ✗ return err;
1653 }
1654 335 break;
1655
1656 391 case VVC_PPS_NUT:
1657 {
1658 391 H266RawPPS *pps = unit->content;
1659
1660 391 err = cbs_h266_write_pps(ctx, pbc, pps);
1661
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 391 times.
 391 if (err < 0)
1662 ✗ return err;
1663
1664 391 err = cbs_h266_replace_pps(ctx, unit);
1665
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 391 times.
 391 if (err < 0)
1666 ✗ return err;
1667 }
1668 391 break;
1669
1670 228 case VVC_PREFIX_APS_NUT:
1671 case VVC_SUFFIX_APS_NUT:
1672 {
1673 228 err = cbs_h266_write_aps(ctx, pbc, unit->content,
1674 228 unit->type == VVC_PREFIX_APS_NUT);
1675
1/2
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✓ Branch 1 taken 228 times.
 228 if (err < 0)
1676 ✗ return err;
1677 }
1678 228 break;
1679 27 case VVC_PH_NUT:
1680 {
1681 27 H266RawPH *ph = unit->content;
1682 27 err = cbs_h266_write_ph(ctx, pbc, ph);
1683
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 27 times.
 27 if (err < 0)
1684 ✗ return err;
1685
1686 27 err = cbs_h266_replace_ph(ctx, unit, &ph->ph_picture_header);
1687
1/2
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✓ Branch 1 taken 27 times.
 27 if (err < 0)
1688 ✗ return err;
1689 }
1690 27 break;
1691
1692 2588 case VVC_TRAIL_NUT:
1693 case VVC_STSA_NUT:
1694 case VVC_RADL_NUT:
1695 case VVC_RASL_NUT:
1696 case VVC_IDR_W_RADL:
1697 case VVC_IDR_N_LP:
1698 case VVC_CRA_NUT:
1699 case VVC_GDR_NUT:
1700 {
1701 2588 H266RawSlice *slice = unit->content;
1702
1703 2588 err = cbs_h266_write_slice_header(ctx, pbc, &slice->header);
1704
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✓ Branch 1 taken 2588 times.
 2588 if (err < 0)
1705 ✗ return err;
1706
1707
2/2
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✓ Branch 1 taken 485 times.
 2588 if (slice->header.sh_picture_header_in_slice_header_flag) {
1708 2103 err = cbs_h266_replace_ph(ctx, unit, &slice->header.sh_picture_header);
1709
1/2
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✓ Branch 1 taken 2103 times.
 2103 if (err < 0)
1710 ✗ return err;
1711 }
1712
1713
1/2
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✗ Branch 1 not taken.
 2588 if (slice->data) {
1714 2588 err = cbs_h2645_write_slice_data(ctx, pbc, slice->data,
1715 slice->data_size,
1716 slice->data_bit_start);
1717
1/2
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 2588 if (err < 0)
1718 ✗ return err;
1719 } else {
1720 // No slice data - that was just the header.
1721 }
1722 }
1723 2588 break;
1724
1725 12 case VVC_AUD_NUT:
1726 {
1727 12 err = cbs_h266_write_aud(ctx, pbc, unit->content);
1728
1/2
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✓ Branch 1 taken 12 times.
 12 if (err < 0)
1729 ✗ return err;
1730 }
1731 12 break;
1732
1733 2190 case VVC_PREFIX_SEI_NUT:
1734 case VVC_SUFFIX_SEI_NUT:
1735 {
1736 2190 err = cbs_h266_write_sei(ctx, pbc, unit->content,
1737 2190 unit->type == VVC_PREFIX_SEI_NUT);
1738
1739
1/2
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✓ Branch 1 taken 2190 times.
 2190 if (err < 0)
1740 ✗ return err;
1741 }
1742 2190 break;
1743
1744 ✗ default:
1745 ✗ av_log(ctx->log_ctx, AV_LOG_ERROR, "Write unimplemented for "
1746 "NAL unit type %"PRIu32".\n", unit->type);
1747 ✗ return AVERROR_PATCHWELCOME;
1748 }
1749
1750 5777 return 0;
1751 }
1752
1753 21780 static int cbs_h2645_unit_requires_zero_byte(enum AVCodecID codec_id,
1754 CodedBitstreamUnitType type,
1755 int nal_unit_index)
1756 {
1757 // Section B.1.2 in H.264, section B.2.2 in H.265, H.266.
1758
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✓ Branch 1 taken 14534 times.
 21780 if (nal_unit_index == 0) {
1759 // Assume that this is the first NAL unit in an access unit.
1760 7246 return 1;
1761 }
1762
2/2
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 14534 if (codec_id == AV_CODEC_ID_H264)
1763
4/4
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 5022 return type == H264_NAL_SPS || type == H264_NAL_PPS;
1764
2/2
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 9512 if (codec_id == AV_CODEC_ID_HEVC)
1765
6/6
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✓ Branch 3 taken 58 times.
✓ Branch 4 taken 56 times.
✓ Branch 5 taken 5750 times.
 5867 return type == HEVC_NAL_VPS || type == HEVC_NAL_SPS || type == HEVC_NAL_PPS;
1766
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✗ Branch 1 not taken.
 3645 if (codec_id == AV_CODEC_ID_VVC)
1767
4/4
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✓ Branch 1 taken 1003 times.
✓ Branch 2 taken 438 times.
✓ Branch 3 taken 2204 times.
 3645 return type >= VVC_OPI_NUT && type <= VVC_SUFFIX_APS_NUT;
1768 ✗ return 0;
1769 }
1770
1771 7247 static int cbs_h2645_assemble_fragment(CodedBitstreamContext *ctx,
1772 CodedBitstreamFragment *frag)
1773 {
1774 uint8_t *data;
1775 size_t max_size, dp, sp;
1776 int err, i, zero_run;
1777
1778
2/2
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 29027 for (i = 0; i < frag->nb_units; i++) {
1779 // Data should already all have been written when we get here.
1780
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 21780 av_assert0(frag->units[i].data);
1781 }
1782
1783 7247 max_size = 0;
1784
2/2
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✓ Branch 1 taken 7247 times.
 29027 for (i = 0; i < frag->nb_units; i++) {
1785 // Start code + content with worst-case emulation prevention.
1786 21780 max_size += 4 + frag->units[i].data_size * 3 / 2;
1787 }
1788
1789 7247 data = av_realloc(NULL, max_size + AV_INPUT_BUFFER_PADDING_SIZE);
1790
1/2
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 7247 if (!data)
1791 ✗ return AVERROR(ENOMEM);
1792
1793 7247 dp = 0;
1794
2/2
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✓ Branch 1 taken 7247 times.
 29027 for (i = 0; i < frag->nb_units; i++) {
1795 21780 CodedBitstreamUnit *unit = &frag->units[i];
1796
1797
1/2
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✓ Branch 1 taken 21780 times.
 21780 if (unit->data_bit_padding > 0) {
1798 ✗ if (i < frag->nb_units - 1)
1799 ✗ av_log(ctx->log_ctx, AV_LOG_WARNING, "Probably invalid "
1800 "unaligned padding on non-final NAL unit.\n");
1801 else
1802 ✗ frag->data_bit_padding = unit->data_bit_padding;
1803 }
1804
1805
2/2
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✓ Branch 2 taken 13523 times.
 21780 if (cbs_h2645_unit_requires_zero_byte(ctx->codec->codec_id, unit->type, i)) {
1806 // zero_byte
1807 8257 data[dp++] = 0;
1808 }
1809 // start_code_prefix_one_3bytes
1810 21780 data[dp++] = 0;
1811 21780 data[dp++] = 0;
1812 21780 data[dp++] = 1;
1813
1814 21780 zero_run = 0;
1815
2/2
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 16484297 for (sp = 0; sp < unit->data_size; sp++) {
1816
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✓ Branch 1 taken 7406 times.
 16462517 if (zero_run < 2) {
1817
2/2
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✓ Branch 1 taken 16308004 times.
 16455111 if (unit->data[sp] == 0)
1818 147107 ++zero_run;
1819 else
1820 16308004 zero_run = 0;
1821 } else {
1822
2/2
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✓ Branch 1 taken 6119 times.
 7406 if ((unit->data[sp] & ~3) == 0) {
1823 // emulation_prevention_three_byte
1824 1287 data[dp++] = 3;
1825 }
1826 7406 zero_run = unit->data[sp] == 0;
1827 }
1828 16462517 data[dp++] = unit->data[sp];
1829 }
1830 }
1831
1832
1/2
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 7247 av_assert0(dp <= max_size);
1833 7247 err = av_reallocp(&data, dp + AV_INPUT_BUFFER_PADDING_SIZE);
1834
1/2
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 7247 if (err)
1835 ✗ return err;
1836 7247 memset(data + dp, 0, AV_INPUT_BUFFER_PADDING_SIZE);
1837
1838 7247 frag->data_ref = av_buffer_create(data, dp + AV_INPUT_BUFFER_PADDING_SIZE,
1839 NULL, NULL, 0);
1840
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 7247 if (!frag->data_ref) {
1841 ✗ av_freep(&data);
1842 ✗ return AVERROR(ENOMEM);
1843 }
1844
1845 7247 frag->data = data;
1846 7247 frag->data_size = dp;
1847
1848 7247 return 0;
1849 }
1850
1851 ✗ static void cbs_h264_flush(CodedBitstreamContext *ctx)
1852 {
1853 ✗ CodedBitstreamH264Context *h264 = ctx->priv_data;
1854
1855 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(h264->sps); i++)
1856 ✗ ff_refstruct_unref(&h264->sps[i]);
1857 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(h264->pps); i++)
1858 ✗ ff_refstruct_unref(&h264->pps[i]);
1859
1860 ✗ h264->active_sps = NULL;
1861 ✗ h264->active_pps = NULL;
1862 ✗ h264->last_slice_nal_unit_type = 0;
1863 ✗ }
1864
1865 44 static void cbs_h264_close(CodedBitstreamContext *ctx)
1866 {
1867 44 CodedBitstreamH264Context *h264 = ctx->priv_data;
1868 int i;
1869
1870 44 ff_h2645_packet_uninit(&h264->common.read_packet);
1871
1872
2/2
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✓ Branch 1 taken 44 times.
 1452 for (i = 0; i < FF_ARRAY_ELEMS(h264->sps); i++)
1873 1408 ff_refstruct_unref(&h264->sps[i]);
1874
2/2
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 11308 for (i = 0; i < FF_ARRAY_ELEMS(h264->pps); i++)
1875 11264 ff_refstruct_unref(&h264->pps[i]);
1876 44 }
1877
1878 ✗ static void cbs_h265_flush(CodedBitstreamContext *ctx)
1879 {
1880 ✗ CodedBitstreamH265Context *h265 = ctx->priv_data;
1881
1882 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(h265->vps); i++)
1883 ✗ ff_refstruct_unref(&h265->vps[i]);
1884 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(h265->sps); i++)
1885 ✗ ff_refstruct_unref(&h265->sps[i]);
1886 ✗ for (int i = 0; i < FF_ARRAY_ELEMS(h265->pps); i++)
1887 ✗ ff_refstruct_unref(&h265->pps[i]);
1888
1889 ✗ h265->active_vps = NULL;
1890 ✗ h265->active_sps = NULL;
1891 ✗ h265->active_pps = NULL;
1892 ✗ }
1893
1894 44 static void cbs_h265_close(CodedBitstreamContext *ctx)
1895 {
1896 44 CodedBitstreamH265Context *h265 = ctx->priv_data;
1897 int i;
1898
1899 44 ff_h2645_packet_uninit(&h265->common.read_packet);
1900
1901
2/2
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 748 for (i = 0; i < FF_ARRAY_ELEMS(h265->vps); i++)
1902 704 ff_refstruct_unref(&h265->vps[i]);
1903
2/2
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 748 for (i = 0; i < FF_ARRAY_ELEMS(h265->sps); i++)
1904 704 ff_refstruct_unref(&h265->sps[i]);
1905
2/2
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 2860 for (i = 0; i < FF_ARRAY_ELEMS(h265->pps); i++)
1906 2816 ff_refstruct_unref(&h265->pps[i]);
1907 44 }
1908
1909 78 static void cbs_h266_flush(CodedBitstreamContext *ctx)
1910 {
1911 78 CodedBitstreamH266Context *h266 = ctx->priv_data;
1912
1913
2/2
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✓ Branch 1 taken 78 times.
 1326 for (int i = 0; i < FF_ARRAY_ELEMS(h266->vps); i++)
1914 1248 ff_refstruct_unref(&h266->vps[i]);
1915
2/2
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 1326 for (int i = 0; i < FF_ARRAY_ELEMS(h266->sps); i++)
1916 1248 ff_refstruct_unref(&h266->sps[i]);
1917
2/2
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 5070 for (int i = 0; i < FF_ARRAY_ELEMS(h266->pps); i++)
1918 4992 ff_refstruct_unref(&h266->pps[i]);
1919 78 ff_refstruct_unref(&h266->ph_ref);
1920 78 }
1921
1922 78 static void cbs_h266_close(CodedBitstreamContext *ctx)
1923 {
1924 78 CodedBitstreamH266Context *h266 = ctx->priv_data;
1925
1926 78 cbs_h266_flush(ctx);
1927 78 ff_h2645_packet_uninit(&h266->common.read_packet);
1928 78 }
1929
1930 913 static void cbs_h264_free_sei(FFRefStructOpaque unused, void *content)
1931 {
1932 913 H264RawSEI *sei = content;
1933 913 ff_cbs_sei_free_message_list(&sei->message_list);
1934 913 }
1935
1936 static const CodedBitstreamUnitTypeDescriptor cbs_h264_unit_types[] = {
1937 CBS_UNIT_TYPE_POD(H264_NAL_SPS, H264RawSPS),
1938 CBS_UNIT_TYPE_POD(H264_NAL_SPS_EXT, H264RawSPSExtension),
1939
1940 CBS_UNIT_TYPE_INTERNAL_REF(H264_NAL_PPS, H264RawPPS, slice_group_id),
1941
1942 CBS_UNIT_TYPES_INTERNAL_REF((H264_NAL_IDR_SLICE,
1943 H264_NAL_SLICE,
1944 H264_NAL_AUXILIARY_SLICE), H264RawSlice, data),
1945
1946 CBS_UNIT_TYPE_POD(H264_NAL_AUD, H264RawAUD),
1947 CBS_UNIT_TYPE_POD(H264_NAL_FILLER_DATA, H264RawFiller),
1948 CBS_UNIT_TYPE_POD(H264_NAL_END_SEQUENCE, H264RawNALUnitHeader),
1949 CBS_UNIT_TYPE_POD(H264_NAL_END_STREAM, H264RawNALUnitHeader),
1950
1951 CBS_UNIT_TYPE_COMPLEX(H264_NAL_SEI, H264RawSEI, &cbs_h264_free_sei),
1952
1953 CBS_UNIT_TYPE_END_OF_LIST
1954 };
1955
1956 1727 static void cbs_h265_free_sei(FFRefStructOpaque unused, void *content)
1957 {
1958 1727 H265RawSEI *sei = content;
1959 1727 ff_cbs_sei_free_message_list(&sei->message_list);
1960 1727 }
1961
1962 static const CodedBitstreamUnitTypeDescriptor cbs_h265_unit_types[] = {
1963 CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_VPS, H265RawVPS, extension_data.data),
1964 CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_SPS, H265RawSPS, extension_data.data),
1965 CBS_UNIT_TYPE_INTERNAL_REF(HEVC_NAL_PPS, H265RawPPS, extension_data.data),
1966
1967 CBS_UNIT_TYPE_POD(HEVC_NAL_AUD, H265RawAUD),
1968
1969 // Slices of non-IRAP pictures.
1970 CBS_UNIT_RANGE_INTERNAL_REF(HEVC_NAL_TRAIL_N, HEVC_NAL_RASL_R,
1971 H265RawSlice, data),
1972 // Slices of IRAP pictures.
1973 CBS_UNIT_RANGE_INTERNAL_REF(HEVC_NAL_BLA_W_LP, HEVC_NAL_CRA_NUT,
1974 H265RawSlice, data),
1975
1976 CBS_UNIT_TYPES_COMPLEX((HEVC_NAL_SEI_PREFIX, HEVC_NAL_SEI_SUFFIX),
1977 H265RawSEI, cbs_h265_free_sei),
1978
1979 CBS_UNIT_TYPE_END_OF_LIST
1980 };
1981
1982 2190 static void cbs_h266_free_sei(FFRefStructOpaque unused, void *content)
1983 {
1984 2190 H266RawSEI *sei = content;
1985 2190 ff_cbs_sei_free_message_list(&sei->message_list);
1986 2190 }
1987
1988 static const CodedBitstreamUnitTypeDescriptor cbs_h266_unit_types[] = {
1989 CBS_UNIT_TYPE_INTERNAL_REF(VVC_DCI_NUT, H266RawDCI, extension_data.data),
1990 CBS_UNIT_TYPE_INTERNAL_REF(VVC_OPI_NUT, H266RawOPI, extension_data.data),
1991 CBS_UNIT_TYPE_INTERNAL_REF(VVC_VPS_NUT, H266RawVPS, extension_data.data),
1992 {
1993 .nb_unit_types = 1,
1994 .unit_type.list[0] = VVC_SPS_NUT,
1995 .content_type = CBS_CONTENT_TYPE_INTERNAL_REFS,
1996 .content_size = sizeof(H266RawSPS),
1997 .type.ref = {
1998 .nb_offsets = 2,
1999 .offsets = { offsetof(H266RawSPS, extension_data.data),
2000 offsetof(H266RawSPS, vui.extension_data.data) }
2001 },
2002 },
2003 CBS_UNIT_TYPE_INTERNAL_REF(VVC_PPS_NUT, H266RawPPS, extension_data.data),
2004 CBS_UNIT_TYPE_INTERNAL_REF(VVC_PREFIX_APS_NUT, H266RawAPS, extension_data.data),
2005 CBS_UNIT_TYPE_INTERNAL_REF(VVC_SUFFIX_APS_NUT, H266RawAPS, extension_data.data),
2006
2007 CBS_UNIT_TYPE_POD(VVC_PH_NUT , H266RawPH),
2008 CBS_UNIT_TYPE_POD(VVC_AUD_NUT, H266RawAUD),
2009
2010 CBS_UNIT_RANGE_INTERNAL_REF(VVC_TRAIL_NUT, VVC_RASL_NUT,
2011 H266RawSlice, data),
2012
2013 CBS_UNIT_RANGE_INTERNAL_REF(VVC_IDR_W_RADL, VVC_GDR_NUT,
2014 H266RawSlice, data),
2015
2016 CBS_UNIT_TYPES_COMPLEX((VVC_PREFIX_SEI_NUT, VVC_SUFFIX_SEI_NUT),
2017 H266RawSEI, cbs_h266_free_sei),
2018
2019 CBS_UNIT_TYPE_END_OF_LIST
2020 };
2021
2022 const CodedBitstreamType ff_cbs_type_h264 = {
2023 .codec_id = AV_CODEC_ID_H264,
2024
2025 .priv_data_size = sizeof(CodedBitstreamH264Context),
2026
2027 .unit_types = cbs_h264_unit_types,
2028
2029 .split_fragment = &cbs_h2645_split_fragment,
2030 .read_unit = &cbs_h264_read_nal_unit,
2031 .write_unit = &cbs_h264_write_nal_unit,
2032 .discarded_unit = &cbs_h264_discarded_nal_unit,
2033 .assemble_fragment = &cbs_h2645_assemble_fragment,
2034
2035 .flush = &cbs_h264_flush,
2036 .close = &cbs_h264_close,
2037 };
2038
2039 const CodedBitstreamType ff_cbs_type_h265 = {
2040 .codec_id = AV_CODEC_ID_HEVC,
2041
2042 .priv_data_size = sizeof(CodedBitstreamH265Context),
2043
2044 .unit_types = cbs_h265_unit_types,
2045
2046 .split_fragment = &cbs_h2645_split_fragment,
2047 .read_unit = &cbs_h265_read_nal_unit,
2048 .write_unit = &cbs_h265_write_nal_unit,
2049 .discarded_unit = &cbs_h265_discarded_nal_unit,
2050 .assemble_fragment = &cbs_h2645_assemble_fragment,
2051
2052 .flush = &cbs_h265_flush,
2053 .close = &cbs_h265_close,
2054 };
2055
2056 const CodedBitstreamType ff_cbs_type_h266 = {
2057 .codec_id = AV_CODEC_ID_VVC,
2058
2059 .priv_data_size = sizeof(CodedBitstreamH266Context),
2060
2061 .unit_types = cbs_h266_unit_types,
2062
2063 .split_fragment = &cbs_h2645_split_fragment,
2064 .read_unit = &cbs_h266_read_nal_unit,
2065 .write_unit = &cbs_h266_write_nal_unit,
2066 .assemble_fragment = &cbs_h2645_assemble_fragment,
2067
2068 .flush = &cbs_h266_flush,
2069 .close = &cbs_h266_close,
2070 };
2071
2072 static const SEIMessageTypeDescriptor cbs_sei_common_types[] = {
2073 {
2074 SEI_TYPE_FILLER_PAYLOAD,
2075 1, 1,
2076 sizeof(SEIRawFillerPayload),
2077 SEI_MESSAGE_RW(sei, filler_payload),
2078 },
2079 {
2080 SEI_TYPE_USER_DATA_REGISTERED_ITU_T_T35,
2081 1, 1,
2082 sizeof(SEIRawUserDataRegistered),
2083 SEI_MESSAGE_RW(sei, user_data_registered),
2084 },
2085 {
2086 SEI_TYPE_USER_DATA_UNREGISTERED,
2087 1, 1,
2088 sizeof(SEIRawUserDataUnregistered),
2089 SEI_MESSAGE_RW(sei, user_data_unregistered),
2090 },
2091 {
2092 SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME,
2093 1, 0,
2094 sizeof(SEIRawMasteringDisplayColourVolume),
2095 SEI_MESSAGE_RW(sei, mastering_display_colour_volume),
2096 },
2097 {
2098 SEI_TYPE_CONTENT_LIGHT_LEVEL_INFO,
2099 1, 0,
2100 sizeof(SEIRawContentLightLevelInfo),
2101 SEI_MESSAGE_RW(sei, content_light_level_info),
2102 },
2103 {
2104 SEI_TYPE_ALTERNATIVE_TRANSFER_CHARACTERISTICS,
2105 1, 0,
2106 sizeof(SEIRawAlternativeTransferCharacteristics),
2107 SEI_MESSAGE_RW(sei, alternative_transfer_characteristics),
2108 },
2109 {
2110 SEI_TYPE_AMBIENT_VIEWING_ENVIRONMENT,
2111 1, 0,
2112 sizeof(SEIRawAmbientViewingEnvironment),
2113 SEI_MESSAGE_RW(sei, ambient_viewing_environment),
2114 },
2115 SEI_MESSAGE_TYPE_END,
2116 };
2117
2118 static const SEIMessageTypeDescriptor cbs_sei_h264_types[] = {
2119 {
2120 SEI_TYPE_BUFFERING_PERIOD,
2121 1, 0,
2122 sizeof(H264RawSEIBufferingPeriod),
2123 SEI_MESSAGE_RW(h264, sei_buffering_period),
2124 },
2125 {
2126 SEI_TYPE_PIC_TIMING,
2127 1, 0,
2128 sizeof(H264RawSEIPicTiming),
2129 SEI_MESSAGE_RW(h264, sei_pic_timing),
2130 },
2131 {
2132 SEI_TYPE_PAN_SCAN_RECT,
2133 1, 0,
2134 sizeof(H264RawSEIPanScanRect),
2135 SEI_MESSAGE_RW(h264, sei_pan_scan_rect),
2136 },
2137 {
2138 SEI_TYPE_RECOVERY_POINT,
2139 1, 0,
2140 sizeof(H264RawSEIRecoveryPoint),
2141 SEI_MESSAGE_RW(h264, sei_recovery_point),
2142 },
2143 {
2144 SEI_TYPE_FILM_GRAIN_CHARACTERISTICS,
2145 1, 0,
2146 sizeof(H264RawFilmGrainCharacteristics),
2147 SEI_MESSAGE_RW(h264, film_grain_characteristics),
2148 },
2149 {
2150 SEI_TYPE_DISPLAY_ORIENTATION,
2151 1, 0,
2152 sizeof(H264RawSEIDisplayOrientation),
2153 SEI_MESSAGE_RW(h264, sei_display_orientation),
2154 },
2155 SEI_MESSAGE_TYPE_END
2156 };
2157
2158 static const SEIMessageTypeDescriptor cbs_sei_h265_types[] = {
2159 {
2160 SEI_TYPE_BUFFERING_PERIOD,
2161 1, 0,
2162 sizeof(H265RawSEIBufferingPeriod),
2163 SEI_MESSAGE_RW(h265, sei_buffering_period),
2164 },
2165 {
2166 SEI_TYPE_PIC_TIMING,
2167 1, 0,
2168 sizeof(H265RawSEIPicTiming),
2169 SEI_MESSAGE_RW(h265, sei_pic_timing),
2170 },
2171 {
2172 SEI_TYPE_PAN_SCAN_RECT,
2173 1, 0,
2174 sizeof(H265RawSEIPanScanRect),
2175 SEI_MESSAGE_RW(h265, sei_pan_scan_rect),
2176 },
2177 {
2178 SEI_TYPE_RECOVERY_POINT,
2179 1, 0,
2180 sizeof(H265RawSEIRecoveryPoint),
2181 SEI_MESSAGE_RW(h265, sei_recovery_point),
2182 },
2183 {
2184 SEI_TYPE_FILM_GRAIN_CHARACTERISTICS,
2185 1, 0,
2186 sizeof(H265RawFilmGrainCharacteristics),
2187 SEI_MESSAGE_RW(h265, film_grain_characteristics),
2188 },
2189 {
2190 SEI_TYPE_DISPLAY_ORIENTATION,
2191 1, 0,
2192 sizeof(H265RawSEIDisplayOrientation),
2193 SEI_MESSAGE_RW(h265, sei_display_orientation),
2194 },
2195 {
2196 SEI_TYPE_ACTIVE_PARAMETER_SETS,
2197 1, 0,
2198 sizeof(H265RawSEIActiveParameterSets),
2199 SEI_MESSAGE_RW(h265, sei_active_parameter_sets),
2200 },
2201 {
2202 SEI_TYPE_DECODED_PICTURE_HASH,
2203 0, 1,
2204 sizeof(H265RawSEIDecodedPictureHash),
2205 SEI_MESSAGE_RW(h265, sei_decoded_picture_hash),
2206 },
2207 {
2208 SEI_TYPE_TIME_CODE,
2209 1, 0,
2210 sizeof(H265RawSEITimeCode),
2211 SEI_MESSAGE_RW(h265, sei_time_code),
2212 },
2213 {
2214 SEI_TYPE_ALPHA_CHANNEL_INFO,
2215 1, 0,
2216 sizeof(H265RawSEIAlphaChannelInfo),
2217 SEI_MESSAGE_RW(h265, sei_alpha_channel_info),
2218 },
2219 SEI_MESSAGE_TYPE_END
2220 };
2221
2222 static const SEIMessageTypeDescriptor cbs_sei_h266_types[] = {
2223 {
2224 SEI_TYPE_DECODED_PICTURE_HASH,
2225 0, 1,
2226 sizeof(H266RawSEIDecodedPictureHash),
2227 SEI_MESSAGE_RW(h266, sei_decoded_picture_hash),
2228 },
2229 SEI_MESSAGE_TYPE_END
2230 };
2231
2232 13404 const SEIMessageTypeDescriptor *ff_cbs_sei_find_type(CodedBitstreamContext *ctx,
2233 int payload_type)
2234 {
2235 const SEIMessageTypeDescriptor *codec_list;
2236 int i;
2237
2238
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 106470 for (i = 0; cbs_sei_common_types[i].type >= 0; i++) {
2239
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 93204 if (cbs_sei_common_types[i].type == payload_type)
2240 138 return &cbs_sei_common_types[i];
2241 }
2242
2243
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 13266 switch (ctx->codec->codec_id) {
2244 1845 case AV_CODEC_ID_H264:
2245 1845 codec_list = cbs_sei_h264_types;
2246 1845 break;
2247 4851 case AV_CODEC_ID_H265:
2248 4851 codec_list = cbs_sei_h265_types;
2249 4851 break;
2250 6570 case AV_CODEC_ID_H266:
2251 6570 codec_list = cbs_sei_h266_types;
2252 6570 break;
2253 ✗ default:
2254 ✗ return NULL;
2255 }
2256
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 46415 for (i = 0; codec_list[i].type >= 0; i++) {
2258
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 46214 if (codec_list[i].type == payload_type)
2259 13065 return &codec_list[i];
2260 }
2261
2262 201 return NULL;
2263 }
2264