FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/packet.c
Date: 2025-12-05 10:39:27
Exec Total Coverage
Lines: 366 461 79.4%
Functions: 38 40 95.0%
Branches: 157 242 64.9%
Line Branch Exec Source
1 /*
2 * AVPacket functions for libavcodec
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include <string.h>
23
24 #include "libavutil/avassert.h"
25 #include "libavutil/avutil.h"
26 #include "libavutil/container_fifo.h"
27 #include "libavutil/mathematics.h"
28 #include "libavutil/mem.h"
29 #include "libavutil/rational.h"
30
31 #include "defs.h"
32 #include "packet.h"
33 #include "packet_internal.h"
34
35 #if FF_API_INIT_PACKET
36 1368487 void av_init_packet(AVPacket *pkt)
37 {
38 1368487 pkt->pts = AV_NOPTS_VALUE;
39 1368487 pkt->dts = AV_NOPTS_VALUE;
40 1368487 pkt->pos = -1;
41 1368487 pkt->duration = 0;
42 1368487 pkt->flags = 0;
43 1368487 pkt->stream_index = 0;
44 1368487 pkt->buf = NULL;
45 1368487 pkt->side_data = NULL;
46 1368487 pkt->side_data_elems = 0;
47 1368487 pkt->opaque = NULL;
48 1368487 pkt->opaque_ref = NULL;
49 1368487 pkt->time_base = av_make_q(0, 1);
50 1368487 }
51 #endif
52
53 12503546 static void get_packet_defaults(AVPacket *pkt)
54 {
55 12503546 memset(pkt, 0, sizeof(*pkt));
56
57 12503546 pkt->pts = AV_NOPTS_VALUE;
58 12503546 pkt->dts = AV_NOPTS_VALUE;
59 12503546 pkt->pos = -1;
60 12503546 pkt->time_base = av_make_q(0, 1);
61 12503546 }
62
63 288996 AVPacket *av_packet_alloc(void)
64 {
65 288996 AVPacket *pkt = av_malloc(sizeof(AVPacket));
66
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 288996 if (!pkt)
67 ✗ return pkt;
68
69 288996 get_packet_defaults(pkt);
70
71 288996 return pkt;
72 }
73
74 367762 void av_packet_free(AVPacket **pkt)
75 {
76
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 367762 if (!pkt || !*pkt)
77 78766 return;
78
79 288996 av_packet_unref(*pkt);
80 288996 av_freep(pkt);
81 }
82
83 901760 static int packet_alloc(AVBufferRef **buf, int size)
84 {
85 int ret;
86
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 901760 if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
87 1 return AVERROR(EINVAL);
88
89 901759 ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE);
90
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 901759 if (ret < 0)
91 ✗ return ret;
92
93 901759 memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
94
95 901759 return 0;
96 }
97
98 770655 int av_new_packet(AVPacket *pkt, int size)
99 {
100 770655 AVBufferRef *buf = NULL;
101 770655 int ret = packet_alloc(&buf, size);
102
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 770655 if (ret < 0)
103 1 return ret;
104
105 770654 get_packet_defaults(pkt);
106 770654 pkt->buf = buf;
107 770654 pkt->data = buf->data;
108 770654 pkt->size = size;
109
110 770654 return 0;
111 }
112
113 600858 void av_shrink_packet(AVPacket *pkt, int size)
114 {
115
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 600858 if (pkt->size <= size)
116 595383 return;
117 5475 pkt->size = size;
118 5475 memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
119 }
120
121 278642 int av_grow_packet(AVPacket *pkt, int grow_by)
122 {
123 int new_size;
124
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 278642 av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
125 278642 if ((unsigned)grow_by >
126
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 278642 INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
127 1 return AVERROR(ENOMEM);
128
129 278641 new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
130
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 278641 if (pkt->buf) {
131 size_t data_offset;
132 11737 uint8_t *old_data = pkt->data;
133
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 11737 if (pkt->data == NULL) {
134 ✗ data_offset = 0;
135 ✗ pkt->data = pkt->buf->data;
136 } else {
137 11737 data_offset = pkt->data - pkt->buf->data;
138
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 11737 if (data_offset > INT_MAX - new_size)
139 ✗ return AVERROR(ENOMEM);
140 }
141
142
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 13511 if (new_size + data_offset > pkt->buf->size ||
143 1774 !av_buffer_is_writable(pkt->buf)) {
144 int ret;
145
146 // allocate slightly more than requested to avoid excessive
147 // reallocations
148
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 9963 if (new_size + data_offset < INT_MAX - new_size/16)
149 9963 new_size += new_size/16;
150
151 9963 ret = av_buffer_realloc(&pkt->buf, new_size + data_offset);
152
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 9963 if (ret < 0) {
153 ✗ pkt->data = old_data;
154 ✗ return ret;
155 }
156 9963 pkt->data = pkt->buf->data + data_offset;
157 }
158 } else {
159 266904 pkt->buf = av_buffer_alloc(new_size);
160
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 266904 if (!pkt->buf)
161 ✗ return AVERROR(ENOMEM);
162
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 266904 if (pkt->size > 0)
163 ✗ memcpy(pkt->buf->data, pkt->data, pkt->size);
164 266904 pkt->data = pkt->buf->data;
165 }
166 278641 pkt->size += grow_by;
167 278641 memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
168
169 278641 return 0;
170 }
171
172 29 int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
173 {
174
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 29 if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
175 1 return AVERROR(EINVAL);
176
177 28 pkt->buf = av_buffer_create(data, size + AV_INPUT_BUFFER_PADDING_SIZE,
178 av_buffer_default_free, NULL, 0);
179
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 28 if (!pkt->buf)
180 ✗ return AVERROR(ENOMEM);
181
182 28 pkt->data = data;
183 28 pkt->size = size;
184
185 28 return 0;
186 }
187
188 7846900 void av_packet_free_side_data(AVPacket *pkt)
189 {
190 int i;
191
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 7906209 for (i = 0; i < pkt->side_data_elems; i++)
192 59309 av_freep(&pkt->side_data[i].data);
193 7846900 av_freep(&pkt->side_data);
194 7846900 pkt->side_data_elems = 0;
195 7846900 }
196
197 59311 int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
198 uint8_t *data, size_t size)
199 {
200 AVPacketSideData *tmp;
201 59311 int i, elems = pkt->side_data_elems;
202
203
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 59527 for (i = 0; i < elems; i++) {
204 217 AVPacketSideData *sd = &pkt->side_data[i];
205
206
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 217 if (sd->type == type) {
207 1 av_free(sd->data);
208 1 sd->data = data;
209 1 sd->size = size;
210 1 return 0;
211 }
212 }
213
214
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 59310 if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
215 ✗ return AVERROR(ERANGE);
216
217 59310 tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
218
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 59310 if (!tmp)
219 ✗ return AVERROR(ENOMEM);
220
221 59310 pkt->side_data = tmp;
222 59310 pkt->side_data[elems].data = data;
223 59310 pkt->side_data[elems].size = size;
224 59310 pkt->side_data[elems].type = type;
225 59310 pkt->side_data_elems++;
226
227 59310 return 0;
228 }
229
230
231 57846 uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
232 size_t size)
233 {
234 int ret;
235 uint8_t *data;
236
237
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 57846 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
238 ✗ return NULL;
239 57846 data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
240
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 57846 if (!data)
241 ✗ return NULL;
242
243 57846 ret = av_packet_add_side_data(pkt, type, data, size);
244
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 57846 if (ret < 0) {
245 ✗ av_freep(&data);
246 ✗ return NULL;
247 }
248
249 57846 return data;
250 }
251
252 1179742 uint8_t *av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
253 size_t *size)
254 {
255 int i;
256
257
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 1198944 for (i = 0; i < pkt->side_data_elems; i++) {
258
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 33234 if (pkt->side_data[i].type == type) {
259
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 14032 if (size)
260 1135 *size = pkt->side_data[i].size;
261 14032 return pkt->side_data[i].data;
262 }
263 }
264
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 1165710 if (size)
265 997719 *size = 0;
266 1165710 return NULL;
267 }
268
269 4218 const char *av_packet_side_data_name(enum AVPacketSideDataType type)
270 {
271
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 4218 switch(type) {
272 ✗ case AV_PKT_DATA_PALETTE: return "Palette";
273 11 case AV_PKT_DATA_NEW_EXTRADATA: return "New Extradata";
274 ✗ case AV_PKT_DATA_PARAM_CHANGE: return "Param Change";
275 ✗ case AV_PKT_DATA_H263_MB_INFO: return "H263 MB Info";
276 ✗ case AV_PKT_DATA_REPLAYGAIN: return "Replay Gain";
277 44 case AV_PKT_DATA_DISPLAYMATRIX: return "Display Matrix";
278 480 case AV_PKT_DATA_STEREO3D: return "Stereo 3D";
279 16 case AV_PKT_DATA_AUDIO_SERVICE_TYPE: return "Audio Service Type";
280 1463 case AV_PKT_DATA_QUALITY_STATS: return "Quality stats";
281 ✗ case AV_PKT_DATA_FALLBACK_TRACK: return "Fallback track";
282 343 case AV_PKT_DATA_CPB_PROPERTIES: return "CPB properties";
283 34 case AV_PKT_DATA_SKIP_SAMPLES: return "Skip Samples";
284 ✗ case AV_PKT_DATA_JP_DUALMONO: return "JP Dual Mono";
285 162 case AV_PKT_DATA_STRINGS_METADATA: return "Strings Metadata";
286 ✗ case AV_PKT_DATA_SUBTITLE_POSITION: return "Subtitle Position";
287 7 case AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL: return "Matroska BlockAdditional";
288 12 case AV_PKT_DATA_WEBVTT_IDENTIFIER: return "WebVTT ID";
289 24 case AV_PKT_DATA_WEBVTT_SETTINGS: return "WebVTT Settings";
290 ✗ case AV_PKT_DATA_METADATA_UPDATE: return "Metadata Update";
291 1464 case AV_PKT_DATA_MPEGTS_STREAM_ID: return "MPEGTS Stream ID";
292 29 case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
293 25 case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata";
294 22 case AV_PKT_DATA_SPHERICAL: return "Spherical Mapping";
295 ✗ case AV_PKT_DATA_A53_CC: return "A53 Closed Captions";
296 2 case AV_PKT_DATA_ENCRYPTION_INIT_INFO: return "Encryption initialization data";
297 ✗ case AV_PKT_DATA_ENCRYPTION_INFO: return "Encryption info";
298 ✗ case AV_PKT_DATA_AFD: return "Active Format Description data";
299 ✗ case AV_PKT_DATA_PRFT: return "Producer Reference Time";
300 8 case AV_PKT_DATA_ICC_PROFILE: return "ICC Profile";
301 15 case AV_PKT_DATA_DOVI_CONF: return "DOVI configuration record";
302 ✗ case AV_PKT_DATA_S12M_TIMECODE: return "SMPTE ST 12-1:2014 timecode";
303 4 case AV_PKT_DATA_DYNAMIC_HDR10_PLUS: return "HDR10+ Dynamic Metadata (SMPTE 2094-40)";
304 8 case AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT:return "Ambient viewing environment";
305 ✗ case AV_PKT_DATA_IAMF_MIX_GAIN_PARAM: return "IAMF Mix Gain Parameter Data";
306 ✗ case AV_PKT_DATA_IAMF_DEMIXING_INFO_PARAM: return "IAMF Demixing Info Parameter Data";
307 ✗ case AV_PKT_DATA_IAMF_RECON_GAIN_INFO_PARAM: return "IAMF Recon Gain Info Parameter Data";
308 21 case AV_PKT_DATA_FRAME_CROPPING: return "Frame Cropping";
309 ✗ case AV_PKT_DATA_LCEVC: return "LCEVC NAL data";
310 2 case AV_PKT_DATA_3D_REFERENCE_DISPLAYS: return "3D Reference Displays Info";
311 ✗ case AV_PKT_DATA_RTCP_SR: return "RTCP Sender Report";
312 22 case AV_PKT_DATA_EXIF: return "EXIF metadata";
313 }
314 ✗ return NULL;
315 }
316
317 640 uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size)
318 {
319 640 uint8_t *data = NULL;
320 640 *size = 0;
321
322
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 640 if (!dict)
323 ✗ return NULL;
324
325
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 1280 for (int pass = 0; pass < 2; pass++) {
326 1280 const AVDictionaryEntry *t = NULL;
327 1280 size_t total_length = 0;
328
329
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 6360 while ((t = av_dict_iterate(dict, t))) {
330
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 15240 for (int i = 0; i < 2; i++) {
331
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 10160 const char *str = i ? t->value : t->key;
332 10160 const size_t len = strlen(str) + 1;
333
334
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 10160 if (pass)
335 5080 memcpy(data + total_length, str, len);
336
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 5080 else if (len > SIZE_MAX - total_length)
337 ✗ return NULL;
338 10160 total_length += len;
339 }
340 }
341
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 1280 if (pass)
342 640 break;
343 640 data = av_malloc(total_length);
344
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 640 if (!data)
345 ✗ return NULL;
346 640 *size = total_length;
347 }
348
349 640 return data;
350 }
351
352 403724 int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
353 AVDictionary **dict)
354 {
355 const uint8_t *end;
356 int ret;
357
358
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 403724 if (!dict || !data || !size)
359 403131 return 0;
360 593 end = data + size;
361
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 593 if (size && end[-1])
362 ✗ return AVERROR_INVALIDDATA;
363
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 3091 while (data < end) {
364 2498 const uint8_t *key = data;
365 2498 const uint8_t *val = data + strlen(key) + 1;
366
367
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 2498 if (val >= end || !*key)
368 ✗ return AVERROR_INVALIDDATA;
369
370 2498 ret = av_dict_set(dict, key, val, 0);
371
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 2498 if (ret < 0)
372 ✗ return ret;
373 2498 data = val + strlen(val) + 1;
374 }
375
376 593 return 0;
377 }
378
379 ✗ int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
380 size_t size)
381 {
382 int i;
383
384 ✗ for (i = 0; i < pkt->side_data_elems; i++) {
385 ✗ if (pkt->side_data[i].type == type) {
386 ✗ if (size > pkt->side_data[i].size)
387 ✗ return AVERROR(ENOMEM);
388 ✗ pkt->side_data[i].size = size;
389 ✗ return 0;
390 }
391 }
392 ✗ return AVERROR(ENOENT);
393 }
394
395 790172 int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
396 {
397 int i, ret;
398
399 790172 dst->pts = src->pts;
400 790172 dst->dts = src->dts;
401 790172 dst->pos = src->pos;
402 790172 dst->duration = src->duration;
403 790172 dst->flags = src->flags;
404 790172 dst->stream_index = src->stream_index;
405 790172 dst->opaque = src->opaque;
406 790172 dst->time_base = src->time_base;
407 790172 dst->opaque_ref = NULL;
408 790172 dst->side_data = NULL;
409 790172 dst->side_data_elems = 0;
410
411 790172 ret = av_buffer_replace(&dst->opaque_ref, src->opaque_ref);
412
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 790172 if (ret < 0)
413 ✗ return ret;
414
415
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 803170 for (i = 0; i < src->side_data_elems; i++) {
416 12998 enum AVPacketSideDataType type = src->side_data[i].type;
417 12998 size_t size = src->side_data[i].size;
418 12998 uint8_t *src_data = src->side_data[i].data;
419 12998 uint8_t *dst_data = av_packet_new_side_data(dst, type, size);
420
421
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 12998 if (!dst_data) {
422 ✗ av_buffer_unref(&dst->opaque_ref);
423 ✗ av_packet_free_side_data(dst);
424 ✗ return AVERROR(ENOMEM);
425 }
426 12998 memcpy(dst_data, src_data, size);
427 }
428
429 790172 return 0;
430 }
431
432 7846900 void av_packet_unref(AVPacket *pkt)
433 {
434 7846900 av_packet_free_side_data(pkt);
435 7846900 av_buffer_unref(&pkt->opaque_ref);
436 7846900 av_buffer_unref(&pkt->buf);
437 7846900 get_packet_defaults(pkt);
438 7846900 }
439
440 392215 int av_packet_ref(AVPacket *dst, const AVPacket *src)
441 {
442 int ret;
443
444 392215 dst->buf = NULL;
445
446 392215 ret = av_packet_copy_props(dst, src);
447
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 392215 if (ret < 0)
448 ✗ goto fail;
449
450
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 392215 if (!src->buf) {
451 1030 ret = packet_alloc(&dst->buf, src->size);
452
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 1030 if (ret < 0)
453 ✗ goto fail;
454 av_assert1(!src->size || src->data);
455
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 1030 if (src->size)
456 1030 memcpy(dst->buf->data, src->data, src->size);
457
458 1030 dst->data = dst->buf->data;
459 } else {
460 391185 dst->buf = av_buffer_ref(src->buf);
461
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 391185 if (!dst->buf) {
462 ✗ ret = AVERROR(ENOMEM);
463 ✗ goto fail;
464 }
465 391185 dst->data = src->data;
466 }
467
468 392215 dst->size = src->size;
469
470 392215 return 0;
471 ✗ fail:
472 ✗ av_packet_unref(dst);
473 ✗ return ret;
474 }
475
476 6 AVPacket *av_packet_clone(const AVPacket *src)
477 {
478 6 AVPacket *ret = av_packet_alloc();
479
480
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 6 if (!ret)
481 ✗ return ret;
482
483
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 6 if (av_packet_ref(ret, src))
484 ✗ av_packet_free(&ret);
485
486 6 return ret;
487 }
488
489 3596872 void av_packet_move_ref(AVPacket *dst, AVPacket *src)
490 {
491 3596872 *dst = *src;
492 3596872 get_packet_defaults(src);
493 3596872 }
494
495 2090485 int av_packet_make_refcounted(AVPacket *pkt)
496 {
497 int ret;
498
499
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 2090485 if (pkt->buf)
500 1960410 return 0;
501
502 130075 ret = packet_alloc(&pkt->buf, pkt->size);
503
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 130075 if (ret < 0)
504 ✗ return ret;
505 av_assert1(!pkt->size || pkt->data);
506
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 130075 if (pkt->size)
507 128519 memcpy(pkt->buf->data, pkt->data, pkt->size);
508
509 130075 pkt->data = pkt->buf->data;
510
511 130075 return 0;
512 }
513
514 142 int av_packet_make_writable(AVPacket *pkt)
515 {
516 142 AVBufferRef *buf = NULL;
517 int ret;
518
519
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 142 if (pkt->buf && av_buffer_is_writable(pkt->buf))
520 142 return 0;
521
522 ✗ ret = packet_alloc(&buf, pkt->size);
523 ✗ if (ret < 0)
524 ✗ return ret;
525 av_assert1(!pkt->size || pkt->data);
526 ✗ if (pkt->size)
527 ✗ memcpy(buf->data, pkt->data, pkt->size);
528
529 ✗ av_buffer_unref(&pkt->buf);
530 ✗ pkt->buf = buf;
531 ✗ pkt->data = buf->data;
532
533 ✗ return 0;
534 }
535
536 489183 void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
537 {
538
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 489183 if (pkt->pts != AV_NOPTS_VALUE)
539 473631 pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
540
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 489183 if (pkt->dts != AV_NOPTS_VALUE)
541 489167 pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
542
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 489183 if (pkt->duration > 0)
543 470064 pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
544 489183 }
545
546 446238 int avpriv_packet_list_put(PacketList *packet_buffer,
547 AVPacket *pkt,
548 int (*copy)(AVPacket *dst, const AVPacket *src),
549 int flags)
550 {
551 446238 PacketListEntry *pktl = av_malloc(sizeof(*pktl));
552 446238 unsigned int update_end_point = 1;
553 int ret;
554
555
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 446238 if (!pktl)
556 ✗ return AVERROR(ENOMEM);
557
558
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 446238 if (copy) {
559 124 get_packet_defaults(&pktl->pkt);
560 124 ret = copy(&pktl->pkt, pkt);
561
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 124 if (ret < 0) {
562 ✗ av_free(pktl);
563 ✗ return ret;
564 }
565 } else {
566 446114 ret = av_packet_make_refcounted(pkt);
567
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 446114 if (ret < 0) {
568 ✗ av_free(pktl);
569 ✗ return ret;
570 }
571 446114 av_packet_move_ref(&pktl->pkt, pkt);
572 }
573
574 446238 pktl->next = NULL;
575
576
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 446238 if (packet_buffer->head) {
577
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 267631 if (flags & FF_PACKETLIST_FLAG_PREPEND) {
578 20 pktl->next = packet_buffer->head;
579 20 packet_buffer->head = pktl;
580 20 update_end_point = 0;
581 } else {
582 267611 packet_buffer->tail->next = pktl;
583 }
584 } else
585 178607 packet_buffer->head = pktl;
586
587
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 446238 if (update_end_point) {
588 /* Add the packet in the buffered packet list. */
589 446218 packet_buffer->tail = pktl;
590 }
591
592 446238 return 0;
593 }
594
595 394463 int avpriv_packet_list_get(PacketList *pkt_buffer,
596 AVPacket *pkt)
597 {
598 394463 PacketListEntry *pktl = pkt_buffer->head;
599
2/2
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 394463 if (!pktl)
600 54 return AVERROR(EAGAIN);
601 394409 *pkt = pktl->pkt;
602 394409 pkt_buffer->head = pktl->next;
603
2/2
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 394409 if (!pkt_buffer->head)
604 174507 pkt_buffer->tail = NULL;
605 394409 av_freep(&pktl);
606 394409 return 0;
607 }
608
609 55725 void avpriv_packet_list_free(PacketList *pkt_buf)
610 {
611 55725 PacketListEntry *tmp = pkt_buf->head;
612
613
2/2
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 136386 while (tmp) {
614 80661 PacketListEntry *pktl = tmp;
615 80661 tmp = pktl->next;
616 80661 av_packet_unref(&pktl->pkt);
617 80661 av_freep(&pktl);
618 }
619 55725 pkt_buf->head = pkt_buf->tail = NULL;
620 55725 }
621
622 ✗ int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
623 {
624 AVProducerReferenceTime *prft;
625 uint8_t *side_data;
626 size_t side_data_size;
627
628 ✗ side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size);
629 ✗ if (!side_data) {
630 ✗ side_data_size = sizeof(AVProducerReferenceTime);
631 ✗ side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT, side_data_size);
632 }
633
634 ✗ if (!side_data || side_data_size < sizeof(AVProducerReferenceTime))
635 ✗ return AVERROR(ENOMEM);
636
637 ✗ prft = (AVProducerReferenceTime *)side_data;
638 ✗ prft->wallclock = timestamp;
639 ✗ prft->flags = 0;
640
641 ✗ return 0;
642 }
643
644 1146786 const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd, int nb_sd,
645 enum AVPacketSideDataType type)
646 {
647
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 1207602 for (int i = 0; i < nb_sd; i++)
648
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✓ Branch 1 taken 60816 times.
 60919 if (sd[i].type == type)
649 103 return &sd[i];
650
651 1146683 return NULL;
652 }
653
654 856 static AVPacketSideData *packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
655 enum AVPacketSideDataType type,
656 void *data, size_t size)
657 {
658 856 AVPacketSideData *sd = *psd, *tmp;
659 856 int nb_sd = *pnb_sd;
660
661
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 924 for (int i = 0; i < nb_sd; i++) {
662
2/2
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 69 if (sd[i].type != type)
663 68 continue;
664
665 1 av_free(sd[i].data);
666 1 sd[i].data = data;
667 1 sd[i].size = size;
668 1 return &sd[i];
669 }
670
671
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 855 if (nb_sd == INT_MAX)
672 ✗ return NULL;
673
674 855 tmp = av_realloc_array(sd, nb_sd + 1, sizeof(*tmp));
675
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 855 if (!tmp)
676 ✗ return NULL;
677
678 855 *psd = sd = tmp;
679 855 sd[nb_sd].type = type;
680 855 sd[nb_sd].data = data;
681 855 sd[nb_sd].size = size;
682 855 *pnb_sd = nb_sd + 1;
683
684 855 return &sd[nb_sd];
685 }
686
687 486 AVPacketSideData *av_packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
688 enum AVPacketSideDataType type,
689 void *data, size_t size, int flags)
690 {
691 486 return packet_side_data_add(psd, pnb_sd, type, data, size);
692 }
693
694 370 AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
695 enum AVPacketSideDataType type,
696 size_t size, int flags)
697 {
698 370 AVPacketSideData *sd = NULL;
699 uint8_t *data;
700
701
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 370 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
702 ✗ return NULL;
703
704 370 data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
705
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 370 if (!data)
706 ✗ return NULL;
707 370 memset(data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
708
709 370 sd = packet_side_data_add(psd, pnb_sd, type, data, size);
710
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 370 if (!sd)
711 ✗ av_freep(&data);
712
713 370 return sd;
714 }
715
716 1 void av_packet_side_data_remove(AVPacketSideData *sd, int *pnb_sd,
717 enum AVPacketSideDataType type)
718 {
719 1 int nb_sd = *pnb_sd;
720
721
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 1 for (int i = nb_sd - 1; i >= 0; i--) {
722
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 1 if (sd[i].type != type)
723 ✗ continue;
724 1 av_free(sd[i].data);
725 1 sd[i] = sd[--nb_sd];
726 1 break;
727 }
728
729 1 *pnb_sd = nb_sd;
730 1 }
731
732 331416 void av_packet_side_data_free(AVPacketSideData **psd, int *pnb_sd)
733 {
734 331416 AVPacketSideData *sd = *psd;
735 331416 int nb_sd = *pnb_sd;
736
737
2/2
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 336531 for (int i = 0; i < nb_sd; i++)
738 5115 av_free(sd[i].data);
739
740 331416 av_freep(psd);
741 331416 *pnb_sd = 0;
742 331416 }
743
744 68346 static void *container_packet_alloc(void *opaque)
745 {
746 68346 return av_packet_alloc();
747 }
748
749 915732 static void container_packet_reset(void *opaque, void *obj)
750 {
751 915732 av_packet_unref(obj);
752 915732 }
753
754 68346 static void container_packet_free(void *opaque, void *obj)
755 {
756 68346 AVPacket *pkt = obj;
757 68346 av_packet_free(&pkt);
758 68346 }
759
760 1803457 static int container_packet_transfer(void *opaque, void *dst, void *src, unsigned flags)
761 {
762
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 1803457 if (flags & AV_CONTAINER_FIFO_FLAG_REF)
763 ✗ return av_packet_ref(dst, src);
764
765 1803457 av_packet_move_ref(dst, src);
766 1803457 return 0;
767 }
768
769 15447 AVContainerFifo *av_container_fifo_alloc_avpacket(unsigned flags)
770 {
771 15447 return av_container_fifo_alloc(NULL, container_packet_alloc,
772 container_packet_reset, container_packet_free,
773 container_packet_transfer, 0);
774 }
775