FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/packet.c
Date: 2025-03-08 20:38:41
Exec Total Coverage
Lines: 356 465 76.6%
Functions: 38 41 92.7%
Branches: 148 243 60.9%
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/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 1353306 void av_init_packet(AVPacket *pkt)
38 {
39 1353306 pkt->pts = AV_NOPTS_VALUE;
40 1353306 pkt->dts = AV_NOPTS_VALUE;
41 1353306 pkt->pos = -1;
42 1353306 pkt->duration = 0;
43 1353306 pkt->flags = 0;
44 1353306 pkt->stream_index = 0;
45 1353306 pkt->buf = NULL;
46 1353306 pkt->side_data = NULL;
47 1353306 pkt->side_data_elems = 0;
48 1353306 pkt->opaque = NULL;
49 1353306 pkt->opaque_ref = NULL;
50 1353306 pkt->time_base = av_make_q(0, 1);
51 1353306 }
52 #endif
53
54 12251405 static void get_packet_defaults(AVPacket *pkt)
55 {
56 12251405 memset(pkt, 0, sizeof(*pkt));
57
58 12251405 pkt->pts = AV_NOPTS_VALUE;
59 12251405 pkt->dts = AV_NOPTS_VALUE;
60 12251405 pkt->pos = -1;
61 12251405 pkt->time_base = av_make_q(0, 1);
62 12251405 }
63
64 281100 AVPacket *av_packet_alloc(void)
65 {
66 281100 AVPacket *pkt = av_malloc(sizeof(AVPacket));
67
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 281100 if (!pkt)
68 ✗ return pkt;
69
70 281100 get_packet_defaults(pkt);
71
72 281100 return pkt;
73 }
74
75 356440 void av_packet_free(AVPacket **pkt)
76 {
77
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 356440 if (!pkt || !*pkt)
78 75340 return;
79
80 281100 av_packet_unref(*pkt);
81 281100 av_freep(pkt);
82 }
83
84 882426 static int packet_alloc(AVBufferRef **buf, int size)
85 {
86 int ret;
87
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 882426 if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
88 1 return AVERROR(EINVAL);
89
90 882425 ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE);
91
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 882425 if (ret < 0)
92 ✗ return ret;
93
94 882425 memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
95
96 882425 return 0;
97 }
98
99 760831 int av_new_packet(AVPacket *pkt, int size)
100 {
101 760831 AVBufferRef *buf = NULL;
102 760831 int ret = packet_alloc(&buf, size);
103
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 760831 if (ret < 0)
104 1 return ret;
105
106 760830 get_packet_defaults(pkt);
107 760830 pkt->buf = buf;
108 760830 pkt->data = buf->data;
109 760830 pkt->size = size;
110
111 760830 return 0;
112 }
113
114 595140 void av_shrink_packet(AVPacket *pkt, int size)
115 {
116
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 595140 if (pkt->size <= size)
117 589847 return;
118 5293 pkt->size = size;
119 5293 memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
120 }
121
122 279185 int av_grow_packet(AVPacket *pkt, int grow_by)
123 {
124 int new_size;
125
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 279185 av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
126 279185 if ((unsigned)grow_by >
127
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 279185 INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
128 1 return AVERROR(ENOMEM);
129
130 279184 new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
131
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 279184 if (pkt->buf) {
132 size_t data_offset;
133 13370 uint8_t *old_data = pkt->data;
134
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 13370 if (pkt->data == NULL) {
135 ✗ data_offset = 0;
136 ✗ pkt->data = pkt->buf->data;
137 } else {
138 13370 data_offset = pkt->data - pkt->buf->data;
139
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 13370 if (data_offset > INT_MAX - new_size)
140 ✗ return AVERROR(ENOMEM);
141 }
142
143
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 16356 if (new_size + data_offset > pkt->buf->size ||
144 2986 !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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 10384 if (new_size + data_offset < INT_MAX - new_size/16)
150 10384 new_size += new_size/16;
151
152 10384 ret = av_buffer_realloc(&pkt->buf, new_size + data_offset);
153
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 10384 if (ret < 0) {
154 ✗ pkt->data = old_data;
155 ✗ return ret;
156 }
157 10384 pkt->data = pkt->buf->data + data_offset;
158 }
159 } else {
160 265814 pkt->buf = av_buffer_alloc(new_size);
161
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 265814 if (!pkt->buf)
162 ✗ return AVERROR(ENOMEM);
163
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 265814 if (pkt->size > 0)
164 ✗ memcpy(pkt->buf->data, pkt->data, pkt->size);
165 265814 pkt->data = pkt->buf->data;
166 }
167 279184 pkt->size += grow_by;
168 279184 memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
169
170 279184 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 7673959 void av_packet_free_side_data(AVPacket *pkt)
190 {
191 int i;
192
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 7729252 for (i = 0; i < pkt->side_data_elems; i++)
193 55293 av_freep(&pkt->side_data[i].data);
194 7673959 av_freep(&pkt->side_data);
195 7673959 pkt->side_data_elems = 0;
196 7673959 }
197
198 55295 int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
199 uint8_t *data, size_t size)
200 {
201 AVPacketSideData *tmp;
202 55295 int i, elems = pkt->side_data_elems;
203
204
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 55509 for (i = 0; i < elems; i++) {
205 216 AVPacketSideData *sd = &pkt->side_data[i];
206
207
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 216 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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 55293 if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
216 ✗ return AVERROR(ERANGE);
217
218 55293 tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
219
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 55293 if (!tmp)
220 ✗ return AVERROR(ENOMEM);
221
222 55293 pkt->side_data = tmp;
223 55293 pkt->side_data[elems].data = data;
224 55293 pkt->side_data[elems].size = size;
225 55293 pkt->side_data[elems].type = type;
226 55293 pkt->side_data_elems++;
227
228 55293 return 0;
229 }
230
231
232 53857 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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 53857 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
239 ✗ return NULL;
240 53857 data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
241
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 53857 if (!data)
242 ✗ return NULL;
243
244 53857 ret = av_packet_add_side_data(pkt, type, data, size);
245
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 53857 if (ret < 0) {
246 ✗ av_freep(&data);
247 ✗ return NULL;
248 }
249
250 53857 return data;
251 }
252
253 1165712 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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 1183278 for (i = 0; i < pkt->side_data_elems; i++) {
259
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 29985 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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 1153293 if (size)
266 995762 *size = 0;
267 1153293 return NULL;
268 }
269
270 1605 const char *av_packet_side_data_name(enum AVPacketSideDataType type)
271 {
272
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 1605 switch(type) {
273 ✗ case AV_PKT_DATA_PALETTE: return "Palette";
274 5 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 8 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 ✗ 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 20 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 ✗ case AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL: return "Matroska BlockAdditional";
289 8 case AV_PKT_DATA_WEBVTT_IDENTIFIER: return "WebVTT ID";
290 16 case AV_PKT_DATA_WEBVTT_SETTINGS: return "WebVTT Settings";
291 ✗ case AV_PKT_DATA_METADATA_UPDATE: return "Metadata Update";
292 1338 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 2 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 1 case AV_PKT_DATA_FRAME_CROPPING: return "Frame Cropping";
310 ✗ case AV_PKT_DATA_LCEVC: return "LCEVC NAL data";
311 }
312 ✗ return NULL;
313 }
314
315 612 uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size)
316 {
317 612 uint8_t *data = NULL;
318 612 *size = 0;
319
320
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 612 if (!dict)
321 ✗ return NULL;
322
323
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 1224 for (int pass = 0; pass < 2; pass++) {
324 1224 const AVDictionaryEntry *t = NULL;
325 1224 size_t total_length = 0;
326
327
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 6202 while ((t = av_dict_iterate(dict, t))) {
328
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 14934 for (int i = 0; i < 2; i++) {
329
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 9956 const char *str = i ? t->value : t->key;
330 9956 const size_t len = strlen(str) + 1;
331
332
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 9956 if (pass)
333 4978 memcpy(data + total_length, str, len);
334
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 4978 else if (len > SIZE_MAX - total_length)
335 ✗ return NULL;
336 9956 total_length += len;
337 }
338 }
339
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 1224 if (pass)
340 612 break;
341 612 data = av_malloc(total_length);
342
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 612 if (!data)
343 ✗ return NULL;
344 612 *size = total_length;
345 }
346
347 612 return data;
348 }
349
350 408641 int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
351 AVDictionary **dict)
352 {
353 const uint8_t *end;
354 int ret;
355
356
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 408641 if (!dict || !data || !size)
357 408081 return 0;
358 560 end = data + size;
359
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 560 if (size && end[-1])
360 ✗ return AVERROR_INVALIDDATA;
361
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 2959 while (data < end) {
362 2399 const uint8_t *key = data;
363 2399 const uint8_t *val = data + strlen(key) + 1;
364
365
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 2399 if (val >= end || !*key)
366 ✗ return AVERROR_INVALIDDATA;
367
368 2399 ret = av_dict_set(dict, key, val, 0);
369
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 2399 if (ret < 0)
370 ✗ return ret;
371 2399 data = val + strlen(val) + 1;
372 }
373
374 560 return 0;
375 }
376
377 ✗ int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
378 size_t size)
379 {
380 int i;
381
382 ✗ for (i = 0; i < pkt->side_data_elems; i++) {
383 ✗ if (pkt->side_data[i].type == type) {
384 ✗ if (size > pkt->side_data[i].size)
385 ✗ return AVERROR(ENOMEM);
386 ✗ pkt->side_data[i].size = size;
387 ✗ return 0;
388 }
389 }
390 ✗ return AVERROR(ENOENT);
391 }
392
393 798836 int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
394 {
395 int i, ret;
396
397 798836 dst->pts = src->pts;
398 798836 dst->dts = src->dts;
399 798836 dst->pos = src->pos;
400 798836 dst->duration = src->duration;
401 798836 dst->flags = src->flags;
402 798836 dst->stream_index = src->stream_index;
403 798836 dst->opaque = src->opaque;
404 798836 dst->time_base = src->time_base;
405 798836 dst->opaque_ref = NULL;
406 798836 dst->side_data = NULL;
407 798836 dst->side_data_elems = 0;
408
409 798836 ret = av_buffer_replace(&dst->opaque_ref, src->opaque_ref);
410
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 798836 if (ret < 0)
411 ✗ return ret;
412
413
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 811287 for (i = 0; i < src->side_data_elems; i++) {
414 12451 enum AVPacketSideDataType type = src->side_data[i].type;
415 12451 size_t size = src->side_data[i].size;
416 12451 uint8_t *src_data = src->side_data[i].data;
417 12451 uint8_t *dst_data = av_packet_new_side_data(dst, type, size);
418
419
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 12451 if (!dst_data) {
420 ✗ av_buffer_unref(&dst->opaque_ref);
421 ✗ av_packet_free_side_data(dst);
422 ✗ return AVERROR(ENOMEM);
423 }
424 12451 memcpy(dst_data, src_data, size);
425 }
426
427 798836 return 0;
428 }
429
430 7673959 void av_packet_unref(AVPacket *pkt)
431 {
432 7673959 av_packet_free_side_data(pkt);
433 7673959 av_buffer_unref(&pkt->opaque_ref);
434 7673959 av_buffer_unref(&pkt->buf);
435 7673959 get_packet_defaults(pkt);
436 7673959 }
437
438 396573 int av_packet_ref(AVPacket *dst, const AVPacket *src)
439 {
440 int ret;
441
442 396573 dst->buf = NULL;
443
444 396573 ret = av_packet_copy_props(dst, src);
445
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 396573 if (ret < 0)
446 ✗ goto fail;
447
448
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 396573 if (!src->buf) {
449 1030 ret = packet_alloc(&dst->buf, src->size);
450
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 1030 if (ret < 0)
451 ✗ goto fail;
452 av_assert1(!src->size || src->data);
453
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 1030 if (src->size)
454 1030 memcpy(dst->buf->data, src->data, src->size);
455
456 1030 dst->data = dst->buf->data;
457 } else {
458 395543 dst->buf = av_buffer_ref(src->buf);
459
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 395543 if (!dst->buf) {
460 ✗ ret = AVERROR(ENOMEM);
461 ✗ goto fail;
462 }
463 395543 dst->data = src->data;
464 }
465
466 396573 dst->size = src->size;
467
468 396573 return 0;
469 ✗ fail:
470 ✗ av_packet_unref(dst);
471 ✗ return ret;
472 }
473
474 6 AVPacket *av_packet_clone(const AVPacket *src)
475 {
476 6 AVPacket *ret = av_packet_alloc();
477
478
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 6 if (!ret)
479 ✗ return ret;
480
481
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 6 if (av_packet_ref(ret, src))
482 ✗ av_packet_free(&ret);
483
484 6 return ret;
485 }
486
487 3535460 void av_packet_move_ref(AVPacket *dst, AVPacket *src)
488 {
489 3535460 *dst = *src;
490 3535460 get_packet_defaults(src);
491 3535460 }
492
493 2055452 int av_packet_make_refcounted(AVPacket *pkt)
494 {
495 int ret;
496
497
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 2055452 if (pkt->buf)
498 1934887 return 0;
499
500 120565 ret = packet_alloc(&pkt->buf, pkt->size);
501
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 120565 if (ret < 0)
502 ✗ return ret;
503 av_assert1(!pkt->size || pkt->data);
504
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 120565 if (pkt->size)
505 119009 memcpy(pkt->buf->data, pkt->data, pkt->size);
506
507 120565 pkt->data = pkt->buf->data;
508
509 120565 return 0;
510 }
511
512 142 int av_packet_make_writable(AVPacket *pkt)
513 {
514 142 AVBufferRef *buf = NULL;
515 int ret;
516
517
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 142 if (pkt->buf && av_buffer_is_writable(pkt->buf))
518 142 return 0;
519
520 ✗ ret = packet_alloc(&buf, pkt->size);
521 ✗ if (ret < 0)
522 ✗ return ret;
523 av_assert1(!pkt->size || pkt->data);
524 ✗ if (pkt->size)
525 ✗ memcpy(buf->data, pkt->data, pkt->size);
526
527 ✗ av_buffer_unref(&pkt->buf);
528 ✗ pkt->buf = buf;
529 ✗ pkt->data = buf->data;
530
531 ✗ return 0;
532 }
533
534 467435 void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
535 {
536
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 467435 if (pkt->pts != AV_NOPTS_VALUE)
537 452244 pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
538
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 467435 if (pkt->dts != AV_NOPTS_VALUE)
539 467434 pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
540
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 467435 if (pkt->duration > 0)
541 448746 pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
542 467435 }
543
544 432282 int avpriv_packet_list_put(PacketList *packet_buffer,
545 AVPacket *pkt,
546 int (*copy)(AVPacket *dst, const AVPacket *src),
547 int flags)
548 {
549 432282 PacketListEntry *pktl = av_malloc(sizeof(*pktl));
550 int ret;
551
552
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 432282 if (!pktl)
553 ✗ return AVERROR(ENOMEM);
554
555
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 432282 if (copy) {
556 56 get_packet_defaults(&pktl->pkt);
557 56 ret = copy(&pktl->pkt, pkt);
558
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 56 if (ret < 0) {
559 ✗ av_free(pktl);
560 ✗ return ret;
561 }
562 } else {
563 432226 ret = av_packet_make_refcounted(pkt);
564
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 432226 if (ret < 0) {
565 ✗ av_free(pktl);
566 ✗ return ret;
567 }
568 432226 av_packet_move_ref(&pktl->pkt, pkt);
569 }
570
571 432282 pktl->next = NULL;
572
573
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 432282 if (packet_buffer->head)
574 256040 packet_buffer->tail->next = pktl;
575 else
576 176242 packet_buffer->head = pktl;
577
578 /* Add the packet in the buffered packet list. */
579 432282 packet_buffer->tail = pktl;
580 432282 return 0;
581 }
582
583 397084 int avpriv_packet_list_get(PacketList *pkt_buffer,
584 AVPacket *pkt)
585 {
586 397084 PacketListEntry *pktl = pkt_buffer->head;
587
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 397084 if (!pktl)
588 2 return AVERROR(EAGAIN);
589 397082 *pkt = pktl->pkt;
590 397082 pkt_buffer->head = pktl->next;
591
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 397082 if (!pkt_buffer->head)
592 172265 pkt_buffer->tail = NULL;
593 397082 av_freep(&pktl);
594 397082 return 0;
595 }
596
597 54282 void avpriv_packet_list_free(PacketList *pkt_buf)
598 {
599 54282 PacketListEntry *tmp = pkt_buf->head;
600
601
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 116720 while (tmp) {
602 62438 PacketListEntry *pktl = tmp;
603 62438 tmp = pktl->next;
604 62438 av_packet_unref(&pktl->pkt);
605 62438 av_freep(&pktl);
606 }
607 54282 pkt_buf->head = pkt_buf->tail = NULL;
608 54282 }
609
610 11330 int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
611 {
612 uint8_t *side_data;
613 size_t side_data_size;
614 int i;
615
616 11330 side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, &side_data_size);
617
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 11330 if (!side_data) {
618 11330 side_data_size = 4+4+8*error_count;
619 11330 side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
620 side_data_size);
621 }
622
623
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 11330 if (!side_data || side_data_size < 4+4+8*error_count)
624 ✗ return AVERROR(ENOMEM);
625
626 11330 AV_WL32(side_data , quality );
627 11330 side_data[4] = pict_type;
628 11330 side_data[5] = error_count;
629
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 11330 for (i = 0; i<error_count; i++)
630 ✗ AV_WL64(side_data+8 + 8*i , error[i]);
631
632 11330 return 0;
633 }
634
635 ✗ int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
636 {
637 AVProducerReferenceTime *prft;
638 uint8_t *side_data;
639 size_t side_data_size;
640
641 ✗ side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size);
642 ✗ if (!side_data) {
643 ✗ side_data_size = sizeof(AVProducerReferenceTime);
644 ✗ side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT, side_data_size);
645 }
646
647 ✗ if (!side_data || side_data_size < sizeof(AVProducerReferenceTime))
648 ✗ return AVERROR(ENOMEM);
649
650 ✗ prft = (AVProducerReferenceTime *)side_data;
651 ✗ prft->wallclock = timestamp;
652 ✗ prft->flags = 0;
653
654 ✗ return 0;
655 }
656
657 8689 const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd, int nb_sd,
658 enum AVPacketSideDataType type)
659 {
660
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 9392 for (int i = 0; i < nb_sd; i++)
661
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 772 if (sd[i].type == type)
662 69 return &sd[i];
663
664 8620 return NULL;
665 }
666
667 816 static AVPacketSideData *packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
668 enum AVPacketSideDataType type,
669 void *data, size_t size)
670 {
671 816 AVPacketSideData *sd = *psd, *tmp;
672 816 int nb_sd = *pnb_sd;
673
674
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 873 for (int i = 0; i < nb_sd; i++) {
675
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 58 if (sd[i].type != type)
676 57 continue;
677
678 1 av_free(sd[i].data);
679 1 sd[i].data = data;
680 1 sd[i].size = size;
681 1 return &sd[i];
682 }
683
684
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 815 if (nb_sd == INT_MAX)
685 ✗ return NULL;
686
687 815 tmp = av_realloc_array(sd, nb_sd + 1, sizeof(*tmp));
688
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 815 if (!tmp)
689 ✗ return NULL;
690
691 815 *psd = sd = tmp;
692 815 sd[nb_sd].type = type;
693 815 sd[nb_sd].data = data;
694 815 sd[nb_sd].size = size;
695 815 *pnb_sd = nb_sd + 1;
696
697 815 return &sd[nb_sd];
698 }
699
700 479 AVPacketSideData *av_packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
701 enum AVPacketSideDataType type,
702 void *data, size_t size, int flags)
703 {
704 479 return packet_side_data_add(psd, pnb_sd, type, data, size);
705 }
706
707 337 AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
708 enum AVPacketSideDataType type,
709 size_t size, int flags)
710 {
711 337 AVPacketSideData *sd = NULL;
712 uint8_t *data;
713
714
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 337 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
715 ✗ return NULL;
716
717 337 data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
718
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 337 if (!data)
719 ✗ return NULL;
720 337 memset(data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
721
722 337 sd = packet_side_data_add(psd, pnb_sd, type, data, size);
723
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 337 if (!sd)
724 ✗ av_freep(&data);
725
726 337 return sd;
727 }
728
729 ✗ void av_packet_side_data_remove(AVPacketSideData *sd, int *pnb_sd,
730 enum AVPacketSideDataType type)
731 {
732 ✗ int nb_sd = *pnb_sd;
733
734 ✗ for (int i = nb_sd - 1; i >= 0; i--) {
735 ✗ if (sd[i].type != type)
736 ✗ continue;
737 ✗ av_free(sd[i].data);
738 ✗ sd[i] = sd[--nb_sd];
739 ✗ break;
740 }
741
742 ✗ *pnb_sd = nb_sd;
743 ✗ }
744
745 295202 void av_packet_side_data_free(AVPacketSideData **psd, int *pnb_sd)
746 {
747 295202 AVPacketSideData *sd = *psd;
748 295202 int nb_sd = *pnb_sd;
749
750
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 299793 for (int i = 0; i < nb_sd; i++)
751 4591 av_free(sd[i].data);
752
753 295202 av_freep(psd);
754 295202 *pnb_sd = 0;
755 295202 }
756
757 68636 static void *container_packet_alloc(void *opaque)
758 {
759 68636 return av_packet_alloc();
760 }
761
762 898552 static void container_packet_reset(void *opaque, void *obj)
763 {
764 898552 av_packet_unref(obj);
765 898552 }
766
767 68636 static void container_packet_free(void *opaque, void *obj)
768 {
769 68636 AVPacket *pkt = obj;
770 68636 av_packet_free(&pkt);
771 68636 }
772
773 1769944 static int container_packet_transfer(void *opaque, void *dst, void *src, unsigned flags)
774 {
775
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 1769944 if (flags & AV_CONTAINER_FIFO_FLAG_REF)
776 ✗ return av_packet_ref(dst, src);
777
778 1769944 av_packet_move_ref(dst, src);
779 1769944 return 0;
780 }
781
782 14728 AVContainerFifo *av_container_fifo_alloc_avpacket(unsigned flags)
783 {
784 14728 return av_container_fifo_alloc(NULL, container_packet_alloc,
785 container_packet_reset, container_packet_free,
786 container_packet_transfer, 0);
787 }
788