FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/packet.c
Date: 2025-07-11 09:13:03
Exec Total Coverage
Lines: 367 467 78.6%
Functions: 39 41 95.1%
Branches: 152 245 62.0%
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/intreadwrite.h"
28 #include "libavutil/mathematics.h"
29 #include "libavutil/mem.h"
30 #include "libavutil/rational.h"
31
32 #include "defs.h"
33 #include "packet.h"
34 #include "packet_internal.h"
35
36 #if FF_API_INIT_PACKET
37 1359480 void av_init_packet(AVPacket *pkt)
38 {
39 1359480 pkt->pts = AV_NOPTS_VALUE;
40 1359480 pkt->dts = AV_NOPTS_VALUE;
41 1359480 pkt->pos = -1;
42 1359480 pkt->duration = 0;
43 1359480 pkt->flags = 0;
44 1359480 pkt->stream_index = 0;
45 1359480 pkt->buf = NULL;
46 1359480 pkt->side_data = NULL;
47 1359480 pkt->side_data_elems = 0;
48 1359480 pkt->opaque = NULL;
49 1359480 pkt->opaque_ref = NULL;
50 1359480 pkt->time_base = av_make_q(0, 1);
51 1359480 }
52 #endif
53
54 12396232 static void get_packet_defaults(AVPacket *pkt)
55 {
56 12396232 memset(pkt, 0, sizeof(*pkt));
57
58 12396232 pkt->pts = AV_NOPTS_VALUE;
59 12396232 pkt->dts = AV_NOPTS_VALUE;
60 12396232 pkt->pos = -1;
61 12396232 pkt->time_base = av_make_q(0, 1);
62 12396232 }
63
64 285269 AVPacket *av_packet_alloc(void)
65 {
66 285269 AVPacket *pkt = av_malloc(sizeof(AVPacket));
67
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 285269 if (!pkt)
68 ✗ return pkt;
69
70 285269 get_packet_defaults(pkt);
71
72 285269 return pkt;
73 }
74
75 362525 void av_packet_free(AVPacket **pkt)
76 {
77
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 362525 if (!pkt || !*pkt)
78 77256 return;
79
80 285269 av_packet_unref(*pkt);
81 285269 av_freep(pkt);
82 }
83
84 887290 static int packet_alloc(AVBufferRef **buf, int size)
85 {
86 int ret;
87
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 887290 if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
88 1 return AVERROR(EINVAL);
89
90 887289 ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE);
91
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 887289 if (ret < 0)
92 ✗ return ret;
93
94 887289 memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
95
96 887289 return 0;
97 }
98
99 765567 int av_new_packet(AVPacket *pkt, int size)
100 {
101 765567 AVBufferRef *buf = NULL;
102 765567 int ret = packet_alloc(&buf, size);
103
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 765567 if (ret < 0)
104 1 return ret;
105
106 765566 get_packet_defaults(pkt);
107 765566 pkt->buf = buf;
108 765566 pkt->data = buf->data;
109 765566 pkt->size = size;
110
111 765566 return 0;
112 }
113
114 599114 void av_shrink_packet(AVPacket *pkt, int size)
115 {
116
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 599114 if (pkt->size <= size)
117 593808 return;
118 5306 pkt->size = size;
119 5306 memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
120 }
121
122 278213 int av_grow_packet(AVPacket *pkt, int grow_by)
123 {
124 int new_size;
125
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 278213 av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
126 278213 if ((unsigned)grow_by >
127
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 278213 INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
128 1 return AVERROR(ENOMEM);
129
130 278212 new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
131
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 278212 if (pkt->buf) {
132 size_t data_offset;
133 11705 uint8_t *old_data = pkt->data;
134
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 11705 if (pkt->data == NULL) {
135 ✗ data_offset = 0;
136 ✗ pkt->data = pkt->buf->data;
137 } else {
138 11705 data_offset = pkt->data - pkt->buf->data;
139
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 11705 if (data_offset > INT_MAX - new_size)
140 ✗ return AVERROR(ENOMEM);
141 }
142
143
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 13479 if (new_size + data_offset > pkt->buf->size ||
144 1774 !av_buffer_is_writable(pkt->buf)) {
145 int ret;
146
147 // allocate slightly more than requested to avoid excessive
148 // reallocations
149
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 9931 if (new_size + data_offset < INT_MAX - new_size/16)
150 9931 new_size += new_size/16;
151
152 9931 ret = av_buffer_realloc(&pkt->buf, new_size + data_offset);
153
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 9931 if (ret < 0) {
154 ✗ pkt->data = old_data;
155 ✗ return ret;
156 }
157 9931 pkt->data = pkt->buf->data + data_offset;
158 }
159 } else {
160 266507 pkt->buf = av_buffer_alloc(new_size);
161
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 266507 if (!pkt->buf)
162 ✗ return AVERROR(ENOMEM);
163
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 266507 if (pkt->size > 0)
164 ✗ memcpy(pkt->buf->data, pkt->data, pkt->size);
165 266507 pkt->data = pkt->buf->data;
166 }
167 278212 pkt->size += grow_by;
168 278212 memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
169
170 278212 return 0;
171 }
172
173 3 int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
174 {
175
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 3 if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
176 1 return AVERROR(EINVAL);
177
178 2 pkt->buf = av_buffer_create(data, size + AV_INPUT_BUFFER_PADDING_SIZE,
179 av_buffer_default_free, NULL, 0);
180
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 2 if (!pkt->buf)
181 ✗ return AVERROR(ENOMEM);
182
183 2 pkt->data = data;
184 2 pkt->size = size;
185
186 2 return 0;
187 }
188
189 7771677 void av_packet_free_side_data(AVPacket *pkt)
190 {
191 int i;
192
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 7827051 for (i = 0; i < pkt->side_data_elems; i++)
193 55374 av_freep(&pkt->side_data[i].data);
194 7771677 av_freep(&pkt->side_data);
195 7771677 pkt->side_data_elems = 0;
196 7771677 }
197
198 55379 int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
199 uint8_t *data, size_t size)
200 {
201 AVPacketSideData *tmp;
202 55379 int i, elems = pkt->side_data_elems;
203
204
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 55591 for (i = 0; i < elems; i++) {
205 214 AVPacketSideData *sd = &pkt->side_data[i];
206
207
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 214 if (sd->type == type) {
208 2 av_free(sd->data);
209 2 sd->data = data;
210 2 sd->size = size;
211 2 return 0;
212 }
213 }
214
215
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 55377 if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
216 ✗ return AVERROR(ERANGE);
217
218 55377 tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
219
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 55377 if (!tmp)
220 ✗ return AVERROR(ENOMEM);
221
222 55377 pkt->side_data = tmp;
223 55377 pkt->side_data[elems].data = data;
224 55377 pkt->side_data[elems].size = size;
225 55377 pkt->side_data[elems].type = type;
226 55377 pkt->side_data_elems++;
227
228 55377 return 0;
229 }
230
231
232 53936 uint8_t *av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
233 size_t size)
234 {
235 int ret;
236 uint8_t *data;
237
238
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 53936 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
239 ✗ return NULL;
240 53936 data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
241
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 53936 if (!data)
242 ✗ return NULL;
243
244 53936 ret = av_packet_add_side_data(pkt, type, data, size);
245
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 53936 if (ret < 0) {
246 ✗ av_freep(&data);
247 ✗ return NULL;
248 }
249
250 53936 return data;
251 }
252
253 1181192 uint8_t *av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
254 size_t *size)
255 {
256 int i;
257
258
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 1198807 for (i = 0; i < pkt->side_data_elems; i++) {
259
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 30034 if (pkt->side_data[i].type == type) {
260
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 12419 if (size)
261 1086 *size = pkt->side_data[i].size;
262 12419 return pkt->side_data[i].data;
263 }
264 }
265
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 1168773 if (size)
266 1003264 *size = 0;
267 1168773 return NULL;
268 }
269
270 2847 const char *av_packet_side_data_name(enum AVPacketSideDataType type)
271 {
272
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 2847 switch(type) {
273 ✗ case AV_PKT_DATA_PALETTE: return "Palette";
274 11 case AV_PKT_DATA_NEW_EXTRADATA: return "New Extradata";
275 ✗ case AV_PKT_DATA_PARAM_CHANGE: return "Param Change";
276 ✗ case AV_PKT_DATA_H263_MB_INFO: return "H263 MB Info";
277 ✗ case AV_PKT_DATA_REPLAYGAIN: return "Replay Gain";
278 10 case AV_PKT_DATA_DISPLAYMATRIX: return "Display Matrix";
279 9 case AV_PKT_DATA_STEREO3D: return "Stereo 3D";
280 4 case AV_PKT_DATA_AUDIO_SERVICE_TYPE: return "Audio Service Type";
281 1071 case AV_PKT_DATA_QUALITY_STATS: return "Quality stats";
282 ✗ case AV_PKT_DATA_FALLBACK_TRACK: return "Fallback track";
283 13 case AV_PKT_DATA_CPB_PROPERTIES: return "CPB properties";
284 34 case AV_PKT_DATA_SKIP_SAMPLES: return "Skip Samples";
285 ✗ case AV_PKT_DATA_JP_DUALMONO: return "JP Dual Mono";
286 162 case AV_PKT_DATA_STRINGS_METADATA: return "Strings Metadata";
287 ✗ case AV_PKT_DATA_SUBTITLE_POSITION: return "Subtitle Position";
288 7 case AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL: return "Matroska BlockAdditional";
289 12 case AV_PKT_DATA_WEBVTT_IDENTIFIER: return "WebVTT ID";
290 24 case AV_PKT_DATA_WEBVTT_SETTINGS: return "WebVTT Settings";
291 ✗ case AV_PKT_DATA_METADATA_UPDATE: return "Metadata Update";
292 1464 case AV_PKT_DATA_MPEGTS_STREAM_ID: return "MPEGTS Stream ID";
293 6 case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
294 5 case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata";
295 4 case AV_PKT_DATA_SPHERICAL: return "Spherical Mapping";
296 ✗ case AV_PKT_DATA_A53_CC: return "A53 Closed Captions";
297 ✗ case AV_PKT_DATA_ENCRYPTION_INIT_INFO: return "Encryption initialization data";
298 ✗ case AV_PKT_DATA_ENCRYPTION_INFO: return "Encryption info";
299 ✗ case AV_PKT_DATA_AFD: return "Active Format Description data";
300 ✗ case AV_PKT_DATA_PRFT: return "Producer Reference Time";
301 ✗ case AV_PKT_DATA_ICC_PROFILE: return "ICC Profile";
302 2 case AV_PKT_DATA_DOVI_CONF: return "DOVI configuration record";
303 ✗ case AV_PKT_DATA_S12M_TIMECODE: return "SMPTE ST 12-1:2014 timecode";
304 4 case AV_PKT_DATA_DYNAMIC_HDR10_PLUS: return "HDR10+ Dynamic Metadata (SMPTE 2094-40)";
305 2 case AV_PKT_DATA_AMBIENT_VIEWING_ENVIRONMENT:return "Ambient viewing environment";
306 ✗ case AV_PKT_DATA_IAMF_MIX_GAIN_PARAM: return "IAMF Mix Gain Parameter Data";
307 ✗ case AV_PKT_DATA_IAMF_DEMIXING_INFO_PARAM: return "IAMF Demixing Info Parameter Data";
308 ✗ case AV_PKT_DATA_IAMF_RECON_GAIN_INFO_PARAM: return "IAMF Recon Gain Info Parameter Data";
309 3 case AV_PKT_DATA_FRAME_CROPPING: return "Frame Cropping";
310 ✗ case AV_PKT_DATA_LCEVC: return "LCEVC NAL data";
311 ✗ case AV_PKT_DATA_3D_REFERENCE_DISPLAYS: return "3D Reference Displays Info";
312 ✗ case AV_PKT_DATA_RTCP_SR: return "RTCP Sender Report";
313 }
314 ✗ return NULL;
315 }
316
317 615 uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size)
318 {
319 615 uint8_t *data = NULL;
320 615 *size = 0;
321
322
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 615 if (!dict)
323 ✗ return NULL;
324
325
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 1230 for (int pass = 0; pass < 2; pass++) {
326 1230 const AVDictionaryEntry *t = NULL;
327 1230 size_t total_length = 0;
328
329
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 6220 while ((t = av_dict_iterate(dict, t))) {
330
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 14970 for (int i = 0; i < 2; i++) {
331
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 9980 const char *str = i ? t->value : t->key;
332 9980 const size_t len = strlen(str) + 1;
333
334
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 9980 if (pass)
335 4990 memcpy(data + total_length, str, len);
336
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 4990 else if (len > SIZE_MAX - total_length)
337 ✗ return NULL;
338 9980 total_length += len;
339 }
340 }
341
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 1230 if (pass)
342 615 break;
343 615 data = av_malloc(total_length);
344
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 615 if (!data)
345 ✗ return NULL;
346 615 *size = total_length;
347 }
348
349 615 return data;
350 }
351
352 412296 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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 412296 if (!dict || !data || !size)
359 411736 return 0;
360 560 end = data + size;
361
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 560 if (size && end[-1])
362 ✗ return AVERROR_INVALIDDATA;
363
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 2959 while (data < end) {
364 2399 const uint8_t *key = data;
365 2399 const uint8_t *val = data + strlen(key) + 1;
366
367
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 2399 if (val >= end || !*key)
368 ✗ return AVERROR_INVALIDDATA;
369
370 2399 ret = av_dict_set(dict, key, val, 0);
371
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 2399 if (ret < 0)
372 ✗ return ret;
373 2399 data = val + strlen(val) + 1;
374 }
375
376 560 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 806279 int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
396 {
397 int i, ret;
398
399 806279 dst->pts = src->pts;
400 806279 dst->dts = src->dts;
401 806279 dst->pos = src->pos;
402 806279 dst->duration = src->duration;
403 806279 dst->flags = src->flags;
404 806279 dst->stream_index = src->stream_index;
405 806279 dst->opaque = src->opaque;
406 806279 dst->time_base = src->time_base;
407 806279 dst->opaque_ref = NULL;
408 806279 dst->side_data = NULL;
409 806279 dst->side_data_elems = 0;
410
411 806279 ret = av_buffer_replace(&dst->opaque_ref, src->opaque_ref);
412
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 806279 if (ret < 0)
413 ✗ return ret;
414
415
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 818776 for (i = 0; i < src->side_data_elems; i++) {
416 12497 enum AVPacketSideDataType type = src->side_data[i].type;
417 12497 size_t size = src->side_data[i].size;
418 12497 uint8_t *src_data = src->side_data[i].data;
419 12497 uint8_t *dst_data = av_packet_new_side_data(dst, type, size);
420
421
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 12497 if (!dst_data) {
422 ✗ av_buffer_unref(&dst->opaque_ref);
423 ✗ av_packet_free_side_data(dst);
424 ✗ return AVERROR(ENOMEM);
425 }
426 12497 memcpy(dst_data, src_data, size);
427 }
428
429 806279 return 0;
430 }
431
432 7771677 void av_packet_unref(AVPacket *pkt)
433 {
434 7771677 av_packet_free_side_data(pkt);
435 7771677 av_buffer_unref(&pkt->opaque_ref);
436 7771677 av_buffer_unref(&pkt->buf);
437 7771677 get_packet_defaults(pkt);
438 7771677 }
439
440 400295 int av_packet_ref(AVPacket *dst, const AVPacket *src)
441 {
442 int ret;
443
444 400295 dst->buf = NULL;
445
446 400295 ret = av_packet_copy_props(dst, src);
447
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 400295 if (ret < 0)
448 ✗ goto fail;
449
450
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 400295 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 399265 dst->buf = av_buffer_ref(src->buf);
461
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 399265 if (!dst->buf) {
462 ✗ ret = AVERROR(ENOMEM);
463 ✗ goto fail;
464 }
465 399265 dst->data = src->data;
466 }
467
468 400295 dst->size = src->size;
469
470 400295 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 3573664 void av_packet_move_ref(AVPacket *dst, AVPacket *src)
490 {
491 3573664 *dst = *src;
492 3573664 get_packet_defaults(src);
493 3573664 }
494
495 2063919 int av_packet_make_refcounted(AVPacket *pkt)
496 {
497 int ret;
498
499
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 2063919 if (pkt->buf)
500 1943226 return 0;
501
502 120693 ret = packet_alloc(&pkt->buf, pkt->size);
503
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 120693 if (ret < 0)
504 ✗ return ret;
505 av_assert1(!pkt->size || pkt->data);
506
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 120693 if (pkt->size)
507 119137 memcpy(pkt->buf->data, pkt->data, pkt->size);
508
509 120693 pkt->data = pkt->buf->data;
510
511 120693 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 475576 void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
537 {
538
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 475576 if (pkt->pts != AV_NOPTS_VALUE)
539 460249 pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
540
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 475576 if (pkt->dts != AV_NOPTS_VALUE)
541 475560 pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
542
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 475576 if (pkt->duration > 0)
543 456886 pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
544 475576 }
545
546 431273 int avpriv_packet_list_put(PacketList *packet_buffer,
547 AVPacket *pkt,
548 int (*copy)(AVPacket *dst, const AVPacket *src),
549 int flags)
550 {
551 431273 PacketListEntry *pktl = av_malloc(sizeof(*pktl));
552 int ret;
553
554
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 431273 if (!pktl)
555 ✗ return AVERROR(ENOMEM);
556
557
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 431273 if (copy) {
558 56 get_packet_defaults(&pktl->pkt);
559 56 ret = copy(&pktl->pkt, pkt);
560
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 56 if (ret < 0) {
561 ✗ av_free(pktl);
562 ✗ return ret;
563 }
564 } else {
565 431217 ret = av_packet_make_refcounted(pkt);
566
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 431217 if (ret < 0) {
567 ✗ av_free(pktl);
568 ✗ return ret;
569 }
570 431217 av_packet_move_ref(&pktl->pkt, pkt);
571 }
572
573 431273 pktl->next = NULL;
574
575
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 431273 if (packet_buffer->head)
576 254878 packet_buffer->tail->next = pktl;
577 else
578 176395 packet_buffer->head = pktl;
579
580 /* Add the packet in the buffered packet list. */
581 431273 packet_buffer->tail = pktl;
582 431273 return 0;
583 }
584
585 398558 int avpriv_packet_list_get(PacketList *pkt_buffer,
586 AVPacket *pkt)
587 {
588 398558 PacketListEntry *pktl = pkt_buffer->head;
589
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 398558 if (!pktl)
590 2 return AVERROR(EAGAIN);
591 398556 *pkt = pktl->pkt;
592 398556 pkt_buffer->head = pktl->next;
593
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 398556 if (!pkt_buffer->head)
594 172401 pkt_buffer->tail = NULL;
595 398556 av_freep(&pktl);
596 398556 return 0;
597 }
598
599 54818 void avpriv_packet_list_free(PacketList *pkt_buf)
600 {
601 54818 PacketListEntry *tmp = pkt_buf->head;
602
603
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 114877 while (tmp) {
604 60059 PacketListEntry *pktl = tmp;
605 60059 tmp = pktl->next;
606 60059 av_packet_unref(&pktl->pkt);
607 60059 av_freep(&pktl);
608 }
609 54818 pkt_buf->head = pkt_buf->tail = NULL;
610 54818 }
611
612 11332 int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
613 {
614 uint8_t *side_data;
615 size_t side_data_size;
616 int i;
617
618 11332 side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, &side_data_size);
619
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 11332 if (!side_data) {
620 11332 side_data_size = 4+4+8*error_count;
621 11332 side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
622 side_data_size);
623 }
624
625
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 11332 if (!side_data || side_data_size < 4+4+8*error_count)
626 ✗ return AVERROR(ENOMEM);
627
628 11332 AV_WL32(side_data , quality );
629 11332 side_data[4] = pict_type;
630 11332 side_data[5] = error_count;
631
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 11332 for (i = 0; i<error_count; i++)
632 ✗ AV_WL64(side_data+8 + 8*i , error[i]);
633
634 11332 return 0;
635 }
636
637 ✗ int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
638 {
639 AVProducerReferenceTime *prft;
640 uint8_t *side_data;
641 size_t side_data_size;
642
643 ✗ side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size);
644 ✗ if (!side_data) {
645 ✗ side_data_size = sizeof(AVProducerReferenceTime);
646 ✗ side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT, side_data_size);
647 }
648
649 ✗ if (!side_data || side_data_size < sizeof(AVProducerReferenceTime))
650 ✗ return AVERROR(ENOMEM);
651
652 ✗ prft = (AVProducerReferenceTime *)side_data;
653 ✗ prft->wallclock = timestamp;
654 ✗ prft->flags = 0;
655
656 ✗ return 0;
657 }
658
659 8799 const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd, int nb_sd,
660 enum AVPacketSideDataType type)
661 {
662
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 9528 for (int i = 0; i < nb_sd; i++)
663
2/2
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✓ Branch 1 taken 729 times.
 805 if (sd[i].type == type)
664 76 return &sd[i];
665
666 8723 return NULL;
667 }
668
669 833 static AVPacketSideData *packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
670 enum AVPacketSideDataType type,
671 void *data, size_t size)
672 {
673 833 AVPacketSideData *sd = *psd, *tmp;
674 833 int nb_sd = *pnb_sd;
675
676
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 901 for (int i = 0; i < nb_sd; i++) {
677
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 69 if (sd[i].type != type)
678 68 continue;
679
680 1 av_free(sd[i].data);
681 1 sd[i].data = data;
682 1 sd[i].size = size;
683 1 return &sd[i];
684 }
685
686
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 832 if (nb_sd == INT_MAX)
687 ✗ return NULL;
688
689 832 tmp = av_realloc_array(sd, nb_sd + 1, sizeof(*tmp));
690
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 832 if (!tmp)
691 ✗ return NULL;
692
693 832 *psd = sd = tmp;
694 832 sd[nb_sd].type = type;
695 832 sd[nb_sd].data = data;
696 832 sd[nb_sd].size = size;
697 832 *pnb_sd = nb_sd + 1;
698
699 832 return &sd[nb_sd];
700 }
701
702 480 AVPacketSideData *av_packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
703 enum AVPacketSideDataType type,
704 void *data, size_t size, int flags)
705 {
706 480 return packet_side_data_add(psd, pnb_sd, type, data, size);
707 }
708
709 353 AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
710 enum AVPacketSideDataType type,
711 size_t size, int flags)
712 {
713 353 AVPacketSideData *sd = NULL;
714 uint8_t *data;
715
716
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 353 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
717 ✗ return NULL;
718
719 353 data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
720
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 353 if (!data)
721 ✗ return NULL;
722 353 memset(data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
723
724 353 sd = packet_side_data_add(psd, pnb_sd, type, data, size);
725
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 353 if (!sd)
726 ✗ av_freep(&data);
727
728 353 return sd;
729 }
730
731 3 void av_packet_side_data_remove(AVPacketSideData *sd, int *pnb_sd,
732 enum AVPacketSideDataType type)
733 {
734 3 int nb_sd = *pnb_sd;
735
736
1/2
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✗ Branch 1 not taken.
 3 for (int i = nb_sd - 1; i >= 0; i--) {
737
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 3 if (sd[i].type != type)
738 ✗ continue;
739 3 av_free(sd[i].data);
740 3 sd[i] = sd[--nb_sd];
741 3 break;
742 }
743
744 3 *pnb_sd = nb_sd;
745 3 }
746
747 299288 void av_packet_side_data_free(AVPacketSideData **psd, int *pnb_sd)
748 {
749 299288 AVPacketSideData *sd = *psd;
750 299288 int nb_sd = *pnb_sd;
751
752
2/2
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 303989 for (int i = 0; i < nb_sd; i++)
753 4701 av_free(sd[i].data);
754
755 299288 av_freep(psd);
756 299288 *pnb_sd = 0;
757 299288 }
758
759 69183 static void *container_packet_alloc(void *opaque)
760 {
761 69183 return av_packet_alloc();
762 }
763
764 910326 static void container_packet_reset(void *opaque, void *obj)
765 {
766 910326 av_packet_unref(obj);
767 910326 }
768
769 69183 static void container_packet_free(void *opaque, void *obj)
770 {
771 69183 AVPacket *pkt = obj;
772 69183 av_packet_free(&pkt);
773 69183 }
774
775 1793421 static int container_packet_transfer(void *opaque, void *dst, void *src, unsigned flags)
776 {
777
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 1793421 if (flags & AV_CONTAINER_FIFO_FLAG_REF)
778 ✗ return av_packet_ref(dst, src);
779
780 1793421 av_packet_move_ref(dst, src);
781 1793421 return 0;
782 }
783
784 15104 AVContainerFifo *av_container_fifo_alloc_avpacket(unsigned flags)
785 {
786 15104 return av_container_fifo_alloc(NULL, container_packet_alloc,
787 container_packet_reset, container_packet_free,
788 container_packet_transfer, 0);
789 }
790