FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/packet.c
Date: 2025-11-04 15:39:44
Exec Total Coverage
Lines: 377 474 79.5%
Functions: 39 41 95.1%
Branches: 161 250 64.4%
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 1369018 void av_init_packet(AVPacket *pkt)
38 {
39 1369018 pkt->pts = AV_NOPTS_VALUE;
40 1369018 pkt->dts = AV_NOPTS_VALUE;
41 1369018 pkt->pos = -1;
42 1369018 pkt->duration = 0;
43 1369018 pkt->flags = 0;
44 1369018 pkt->stream_index = 0;
45 1369018 pkt->buf = NULL;
46 1369018 pkt->side_data = NULL;
47 1369018 pkt->side_data_elems = 0;
48 1369018 pkt->opaque = NULL;
49 1369018 pkt->opaque_ref = NULL;
50 1369018 pkt->time_base = av_make_q(0, 1);
51 1369018 }
52 #endif
53
54 12516234 static void get_packet_defaults(AVPacket *pkt)
55 {
56 12516234 memset(pkt, 0, sizeof(*pkt));
57
58 12516234 pkt->pts = AV_NOPTS_VALUE;
59 12516234 pkt->dts = AV_NOPTS_VALUE;
60 12516234 pkt->pos = -1;
61 12516234 pkt->time_base = av_make_q(0, 1);
62 12516234 }
63
64 293075 AVPacket *av_packet_alloc(void)
65 {
66 293075 AVPacket *pkt = av_malloc(sizeof(AVPacket));
67
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 293075 times.
 293075 if (!pkt)
68 ✗ return pkt;
69
70 293075 get_packet_defaults(pkt);
71
72 293075 return pkt;
73 }
74
75 372592 void av_packet_free(AVPacket **pkt)
76 {
77
3/4
✓ Branch 0 taken 372592 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 79517 times.
✓ Branch 3 taken 293075 times.
 372592 if (!pkt || !*pkt)
78 79517 return;
79
80 293075 av_packet_unref(*pkt);
81 293075 av_freep(pkt);
82 }
83
84 904262 static int packet_alloc(AVBufferRef **buf, int size)
85 {
86 int ret;
87
3/4
✓ Branch 0 taken 904262 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 1 times.
✓ Branch 3 taken 904261 times.
 904262 if (size < 0 || size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
88 1 return AVERROR(EINVAL);
89
90 904261 ret = av_buffer_realloc(buf, size + AV_INPUT_BUFFER_PADDING_SIZE);
91
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 904261 times.
 904261 if (ret < 0)
92 ✗ return ret;
93
94 904261 memset((*buf)->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
95
96 904261 return 0;
97 }
98
99 773978 int av_new_packet(AVPacket *pkt, int size)
100 {
101 773978 AVBufferRef *buf = NULL;
102 773978 int ret = packet_alloc(&buf, size);
103
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 773977 times.
 773978 if (ret < 0)
104 1 return ret;
105
106 773977 get_packet_defaults(pkt);
107 773977 pkt->buf = buf;
108 773977 pkt->data = buf->data;
109 773977 pkt->size = size;
110
111 773977 return 0;
112 }
113
114 599515 void av_shrink_packet(AVPacket *pkt, int size)
115 {
116
2/2
✓ Branch 0 taken 594044 times.
✓ Branch 1 taken 5471 times.
 599515 if (pkt->size <= size)
117 594044 return;
118 5471 pkt->size = size;
119 5471 memset(pkt->data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
120 }
121
122 278065 int av_grow_packet(AVPacket *pkt, int grow_by)
123 {
124 int new_size;
125
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 278065 times.
 278065 av_assert0((unsigned)pkt->size <= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE);
126 278065 if ((unsigned)grow_by >
127
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 278064 times.
 278065 INT_MAX - (pkt->size + AV_INPUT_BUFFER_PADDING_SIZE))
128 1 return AVERROR(ENOMEM);
129
130 278064 new_size = pkt->size + grow_by + AV_INPUT_BUFFER_PADDING_SIZE;
131
2/2
✓ Branch 0 taken 11737 times.
✓ Branch 1 taken 266327 times.
 278064 if (pkt->buf) {
132 size_t data_offset;
133 11737 uint8_t *old_data = pkt->data;
134
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11737 times.
 11737 if (pkt->data == NULL) {
135 ✗ data_offset = 0;
136 ✗ pkt->data = pkt->buf->data;
137 } else {
138 11737 data_offset = pkt->data - pkt->buf->data;
139
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 11737 times.
 11737 if (data_offset > INT_MAX - new_size)
140 ✗ return AVERROR(ENOMEM);
141 }
142
143
3/4
✓ Branch 0 taken 1774 times.
✓ Branch 1 taken 9963 times.
✗ Branch 2 not taken.
✓ Branch 3 taken 1774 times.
 13511 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
1/2
✓ Branch 0 taken 9963 times.
✗ Branch 1 not taken.
 9963 if (new_size + data_offset < INT_MAX - new_size/16)
150 9963 new_size += new_size/16;
151
152 9963 ret = av_buffer_realloc(&pkt->buf, new_size + data_offset);
153
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9963 times.
 9963 if (ret < 0) {
154 ✗ pkt->data = old_data;
155 ✗ return ret;
156 }
157 9963 pkt->data = pkt->buf->data + data_offset;
158 }
159 } else {
160 266327 pkt->buf = av_buffer_alloc(new_size);
161
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 266327 times.
 266327 if (!pkt->buf)
162 ✗ return AVERROR(ENOMEM);
163
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 266327 times.
 266327 if (pkt->size > 0)
164 ✗ memcpy(pkt->buf->data, pkt->data, pkt->size);
165 266327 pkt->data = pkt->buf->data;
166 }
167 278064 pkt->size += grow_by;
168 278064 memset(pkt->data + pkt->size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
169
170 278064 return 0;
171 }
172
173 29 int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size)
174 {
175
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 28 times.
 29 if (size >= INT_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
176 1 return AVERROR(EINVAL);
177
178 28 pkt->buf = av_buffer_create(data, size + AV_INPUT_BUFFER_PADDING_SIZE,
179 av_buffer_default_free, NULL, 0);
180
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 28 times.
 28 if (!pkt->buf)
181 ✗ return AVERROR(ENOMEM);
182
183 28 pkt->data = data;
184 28 pkt->size = size;
185
186 28 return 0;
187 }
188
189 7849190 void av_packet_free_side_data(AVPacket *pkt)
190 {
191 int i;
192
2/2
✓ Branch 0 taken 57194 times.
✓ Branch 1 taken 7849190 times.
 7906384 for (i = 0; i < pkt->side_data_elems; i++)
193 57194 av_freep(&pkt->side_data[i].data);
194 7849190 av_freep(&pkt->side_data);
195 7849190 pkt->side_data_elems = 0;
196 7849190 }
197
198 57196 int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
199 uint8_t *data, size_t size)
200 {
201 AVPacketSideData *tmp;
202 57196 int i, elems = pkt->side_data_elems;
203
204
2/2
✓ Branch 0 taken 220 times.
✓ Branch 1 taken 57195 times.
 57415 for (i = 0; i < elems; i++) {
205 220 AVPacketSideData *sd = &pkt->side_data[i];
206
207
2/2
✓ Branch 0 taken 1 times.
✓ Branch 1 taken 219 times.
 220 if (sd->type == type) {
208 1 av_free(sd->data);
209 1 sd->data = data;
210 1 sd->size = size;
211 1 return 0;
212 }
213 }
214
215
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 57195 times.
 57195 if ((unsigned)elems + 1 > AV_PKT_DATA_NB)
216 ✗ return AVERROR(ERANGE);
217
218 57195 tmp = av_realloc(pkt->side_data, (elems + 1) * sizeof(*tmp));
219
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 57195 times.
 57195 if (!tmp)
220 ✗ return AVERROR(ENOMEM);
221
222 57195 pkt->side_data = tmp;
223 57195 pkt->side_data[elems].data = data;
224 57195 pkt->side_data[elems].size = size;
225 57195 pkt->side_data[elems].type = type;
226 57195 pkt->side_data_elems++;
227
228 57195 return 0;
229 }
230
231
232 55736 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
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 55736 times.
 55736 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
239 ✗ return NULL;
240 55736 data = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
241
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 55736 times.
 55736 if (!data)
242 ✗ return NULL;
243
244 55736 ret = av_packet_add_side_data(pkt, type, data, size);
245
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 55736 times.
 55736 if (ret < 0) {
246 ✗ av_freep(&data);
247 ✗ return NULL;
248 }
249
250 55736 return data;
251 }
252
253 1178616 uint8_t *av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
254 size_t *size)
255 {
256 int i;
257
258
2/2
✓ Branch 0 taken 32760 times.
✓ Branch 1 taken 1164976 times.
 1197736 for (i = 0; i < pkt->side_data_elems; i++) {
259
2/2
✓ Branch 0 taken 13640 times.
✓ Branch 1 taken 19120 times.
 32760 if (pkt->side_data[i].type == type) {
260
2/2
✓ Branch 0 taken 1135 times.
✓ Branch 1 taken 12505 times.
 13640 if (size)
261 1135 *size = pkt->side_data[i].size;
262 13640 return pkt->side_data[i].data;
263 }
264 }
265
2/2
✓ Branch 0 taken 997315 times.
✓ Branch 1 taken 167661 times.
 1164976 if (size)
266 997315 *size = 0;
267 1164976 return NULL;
268 }
269
270 3824 const char *av_packet_side_data_name(enum AVPacketSideDataType type)
271 {
272
23/42
✗ Branch 0 not taken.
✓ Branch 1 taken 11 times.
✗ Branch 2 not taken.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
✓ Branch 5 taken 44 times.
✓ Branch 6 taken 480 times.
✓ Branch 7 taken 16 times.
✓ Branch 8 taken 1071 times.
✗ Branch 9 not taken.
✓ Branch 10 taken 341 times.
✓ Branch 11 taken 34 times.
✗ Branch 12 not taken.
✓ Branch 13 taken 162 times.
✗ Branch 14 not taken.
✓ Branch 15 taken 7 times.
✓ Branch 16 taken 12 times.
✓ Branch 17 taken 24 times.
✗ Branch 18 not taken.
✓ Branch 19 taken 1464 times.
✓ Branch 20 taken 29 times.
✓ Branch 21 taken 25 times.
✓ Branch 22 taken 22 times.
✗ Branch 23 not taken.
✓ Branch 24 taken 2 times.
✗ Branch 25 not taken.
✗ Branch 26 not taken.
✗ Branch 27 not taken.
✓ Branch 28 taken 8 times.
✓ Branch 29 taken 15 times.
✗ Branch 30 not taken.
✓ Branch 31 taken 4 times.
✓ Branch 32 taken 8 times.
✗ Branch 33 not taken.
✗ Branch 34 not taken.
✗ Branch 35 not taken.
✓ Branch 36 taken 21 times.
✗ Branch 37 not taken.
✓ Branch 38 taken 2 times.
✗ Branch 39 not taken.
✓ Branch 40 taken 22 times.
✗ Branch 41 not taken.
 3824 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 44 case AV_PKT_DATA_DISPLAYMATRIX: return "Display Matrix";
279 480 case AV_PKT_DATA_STEREO3D: return "Stereo 3D";
280 16 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";
283 341 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 29 case AV_PKT_DATA_MASTERING_DISPLAY_METADATA: return "Mastering display metadata";
294 25 case AV_PKT_DATA_CONTENT_LIGHT_LEVEL: return "Content light level metadata";
295 22 case AV_PKT_DATA_SPHERICAL: return "Spherical Mapping";
296 ✗ case AV_PKT_DATA_A53_CC: return "A53 Closed Captions";
297 2 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 8 case AV_PKT_DATA_ICC_PROFILE: return "ICC Profile";
302 15 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 8 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 21 case AV_PKT_DATA_FRAME_CROPPING: return "Frame Cropping";
310 ✗ case AV_PKT_DATA_LCEVC: return "LCEVC NAL data";
311 2 case AV_PKT_DATA_3D_REFERENCE_DISPLAYS: return "3D Reference Displays Info";
312 ✗ case AV_PKT_DATA_RTCP_SR: return "RTCP Sender Report";
313 22 case AV_PKT_DATA_EXIF: return "EXIF metadata";
314 }
315 ✗ return NULL;
316 }
317
318 640 uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size)
319 {
320 640 uint8_t *data = NULL;
321 640 *size = 0;
322
323
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 640 times.
 640 if (!dict)
324 ✗ return NULL;
325
326
1/2
✓ Branch 0 taken 1280 times.
✗ Branch 1 not taken.
 1280 for (int pass = 0; pass < 2; pass++) {
327 1280 const AVDictionaryEntry *t = NULL;
328 1280 size_t total_length = 0;
329
330
2/2
✓ Branch 1 taken 5080 times.
✓ Branch 2 taken 1280 times.
 6360 while ((t = av_dict_iterate(dict, t))) {
331
2/2
✓ Branch 0 taken 10160 times.
✓ Branch 1 taken 5080 times.
 15240 for (int i = 0; i < 2; i++) {
332
2/2
✓ Branch 0 taken 5080 times.
✓ Branch 1 taken 5080 times.
 10160 const char *str = i ? t->value : t->key;
333 10160 const size_t len = strlen(str) + 1;
334
335
2/2
✓ Branch 0 taken 5080 times.
✓ Branch 1 taken 5080 times.
 10160 if (pass)
336 5080 memcpy(data + total_length, str, len);
337
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5080 times.
 5080 else if (len > SIZE_MAX - total_length)
338 ✗ return NULL;
339 10160 total_length += len;
340 }
341 }
342
2/2
✓ Branch 0 taken 640 times.
✓ Branch 1 taken 640 times.
 1280 if (pass)
343 640 break;
344 640 data = av_malloc(total_length);
345
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 640 times.
 640 if (!data)
346 ✗ return NULL;
347 640 *size = total_length;
348 }
349
350 640 return data;
351 }
352
353 403807 int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
354 AVDictionary **dict)
355 {
356 const uint8_t *end;
357 int ret;
358
359
5/6
✓ Branch 0 taken 403807 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 613 times.
✓ Branch 3 taken 403194 times.
✓ Branch 4 taken 20 times.
✓ Branch 5 taken 593 times.
 403807 if (!dict || !data || !size)
360 403214 return 0;
361 593 end = data + size;
362
2/4
✓ Branch 0 taken 593 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 593 times.
 593 if (size && end[-1])
363 ✗ return AVERROR_INVALIDDATA;
364
2/2
✓ Branch 0 taken 2498 times.
✓ Branch 1 taken 593 times.
 3091 while (data < end) {
365 2498 const uint8_t *key = data;
366 2498 const uint8_t *val = data + strlen(key) + 1;
367
368
2/4
✓ Branch 0 taken 2498 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 2498 times.
 2498 if (val >= end || !*key)
369 ✗ return AVERROR_INVALIDDATA;
370
371 2498 ret = av_dict_set(dict, key, val, 0);
372
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 2498 times.
 2498 if (ret < 0)
373 ✗ return ret;
374 2498 data = val + strlen(val) + 1;
375 }
376
377 593 return 0;
378 }
379
380 ✗ int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
381 size_t size)
382 {
383 int i;
384
385 ✗ for (i = 0; i < pkt->side_data_elems; i++) {
386 ✗ if (pkt->side_data[i].type == type) {
387 ✗ if (size > pkt->side_data[i].size)
388 ✗ return AVERROR(ENOMEM);
389 ✗ pkt->side_data[i].size = size;
390 ✗ return 0;
391 }
392 }
393 ✗ return AVERROR(ENOENT);
394 }
395
396 790708 int av_packet_copy_props(AVPacket *dst, const AVPacket *src)
397 {
398 int i, ret;
399
400 790708 dst->pts = src->pts;
401 790708 dst->dts = src->dts;
402 790708 dst->pos = src->pos;
403 790708 dst->duration = src->duration;
404 790708 dst->flags = src->flags;
405 790708 dst->stream_index = src->stream_index;
406 790708 dst->opaque = src->opaque;
407 790708 dst->time_base = src->time_base;
408 790708 dst->opaque_ref = NULL;
409 790708 dst->side_data = NULL;
410 790708 dst->side_data_elems = 0;
411
412 790708 ret = av_buffer_replace(&dst->opaque_ref, src->opaque_ref);
413
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 790708 times.
 790708 if (ret < 0)
414 ✗ return ret;
415
416
2/2
✓ Branch 0 taken 12884 times.
✓ Branch 1 taken 790708 times.
 803592 for (i = 0; i < src->side_data_elems; i++) {
417 12884 enum AVPacketSideDataType type = src->side_data[i].type;
418 12884 size_t size = src->side_data[i].size;
419 12884 uint8_t *src_data = src->side_data[i].data;
420 12884 uint8_t *dst_data = av_packet_new_side_data(dst, type, size);
421
422
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12884 times.
 12884 if (!dst_data) {
423 ✗ av_buffer_unref(&dst->opaque_ref);
424 ✗ av_packet_free_side_data(dst);
425 ✗ return AVERROR(ENOMEM);
426 }
427 12884 memcpy(dst_data, src_data, size);
428 }
429
430 790708 return 0;
431 }
432
433 7849190 void av_packet_unref(AVPacket *pkt)
434 {
435 7849190 av_packet_free_side_data(pkt);
436 7849190 av_buffer_unref(&pkt->opaque_ref);
437 7849190 av_buffer_unref(&pkt->buf);
438 7849190 get_packet_defaults(pkt);
439 7849190 }
440
441 392475 int av_packet_ref(AVPacket *dst, const AVPacket *src)
442 {
443 int ret;
444
445 392475 dst->buf = NULL;
446
447 392475 ret = av_packet_copy_props(dst, src);
448
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 392475 times.
 392475 if (ret < 0)
449 ✗ goto fail;
450
451
2/2
✓ Branch 0 taken 1030 times.
✓ Branch 1 taken 391445 times.
 392475 if (!src->buf) {
452 1030 ret = packet_alloc(&dst->buf, src->size);
453
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1030 times.
 1030 if (ret < 0)
454 ✗ goto fail;
455 av_assert1(!src->size || src->data);
456
1/2
✓ Branch 0 taken 1030 times.
✗ Branch 1 not taken.
 1030 if (src->size)
457 1030 memcpy(dst->buf->data, src->data, src->size);
458
459 1030 dst->data = dst->buf->data;
460 } else {
461 391445 dst->buf = av_buffer_ref(src->buf);
462
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 391445 times.
 391445 if (!dst->buf) {
463 ✗ ret = AVERROR(ENOMEM);
464 ✗ goto fail;
465 }
466 391445 dst->data = src->data;
467 }
468
469 392475 dst->size = src->size;
470
471 392475 return 0;
472 ✗ fail:
473 ✗ av_packet_unref(dst);
474 ✗ return ret;
475 }
476
477 6 AVPacket *av_packet_clone(const AVPacket *src)
478 {
479 6 AVPacket *ret = av_packet_alloc();
480
481
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 6 times.
 6 if (!ret)
482 ✗ return ret;
483
484
1/2
✗ Branch 1 not taken.
✓ Branch 2 taken 6 times.
 6 if (av_packet_ref(ret, src))
485 ✗ av_packet_free(&ret);
486
487 6 return ret;
488 }
489
490 3599868 void av_packet_move_ref(AVPacket *dst, AVPacket *src)
491 {
492 3599868 *dst = *src;
493 3599868 get_packet_defaults(src);
494 3599868 }
495
496 2094278 int av_packet_make_refcounted(AVPacket *pkt)
497 {
498 int ret;
499
500
2/2
✓ Branch 0 taken 1965024 times.
✓ Branch 1 taken 129254 times.
 2094278 if (pkt->buf)
501 1965024 return 0;
502
503 129254 ret = packet_alloc(&pkt->buf, pkt->size);
504
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 129254 times.
 129254 if (ret < 0)
505 ✗ return ret;
506 av_assert1(!pkt->size || pkt->data);
507
2/2
✓ Branch 0 taken 127698 times.
✓ Branch 1 taken 1556 times.
 129254 if (pkt->size)
508 127698 memcpy(pkt->buf->data, pkt->data, pkt->size);
509
510 129254 pkt->data = pkt->buf->data;
511
512 129254 return 0;
513 }
514
515 142 int av_packet_make_writable(AVPacket *pkt)
516 {
517 142 AVBufferRef *buf = NULL;
518 int ret;
519
520
2/4
✓ Branch 0 taken 142 times.
✗ Branch 1 not taken.
✓ Branch 3 taken 142 times.
✗ Branch 4 not taken.
 142 if (pkt->buf && av_buffer_is_writable(pkt->buf))
521 142 return 0;
522
523 ✗ ret = packet_alloc(&buf, pkt->size);
524 ✗ if (ret < 0)
525 ✗ return ret;
526 av_assert1(!pkt->size || pkt->data);
527 ✗ if (pkt->size)
528 ✗ memcpy(buf->data, pkt->data, pkt->size);
529
530 ✗ av_buffer_unref(&pkt->buf);
531 ✗ pkt->buf = buf;
532 ✗ pkt->data = buf->data;
533
534 ✗ return 0;
535 }
536
537 488227 void av_packet_rescale_ts(AVPacket *pkt, AVRational src_tb, AVRational dst_tb)
538 {
539
2/2
✓ Branch 0 taken 472900 times.
✓ Branch 1 taken 15327 times.
 488227 if (pkt->pts != AV_NOPTS_VALUE)
540 472900 pkt->pts = av_rescale_q(pkt->pts, src_tb, dst_tb);
541
2/2
✓ Branch 0 taken 488211 times.
✓ Branch 1 taken 16 times.
 488227 if (pkt->dts != AV_NOPTS_VALUE)
542 488211 pkt->dts = av_rescale_q(pkt->dts, src_tb, dst_tb);
543
2/2
✓ Branch 0 taken 469108 times.
✓ Branch 1 taken 19119 times.
 488227 if (pkt->duration > 0)
544 469108 pkt->duration = av_rescale_q(pkt->duration, src_tb, dst_tb);
545 488227 }
546
547 449717 int avpriv_packet_list_put(PacketList *packet_buffer,
548 AVPacket *pkt,
549 int (*copy)(AVPacket *dst, const AVPacket *src),
550 int flags)
551 {
552 449717 PacketListEntry *pktl = av_malloc(sizeof(*pktl));
553 449717 unsigned int update_end_point = 1;
554 int ret;
555
556
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 449717 times.
 449717 if (!pktl)
557 ✗ return AVERROR(ENOMEM);
558
559
2/2
✓ Branch 0 taken 124 times.
✓ Branch 1 taken 449593 times.
 449717 if (copy) {
560 124 get_packet_defaults(&pktl->pkt);
561 124 ret = copy(&pktl->pkt, pkt);
562
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 124 times.
 124 if (ret < 0) {
563 ✗ av_free(pktl);
564 ✗ return ret;
565 }
566 } else {
567 449593 ret = av_packet_make_refcounted(pkt);
568
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 449593 times.
 449593 if (ret < 0) {
569 ✗ av_free(pktl);
570 ✗ return ret;
571 }
572 449593 av_packet_move_ref(&pktl->pkt, pkt);
573 }
574
575 449717 pktl->next = NULL;
576
577
2/2
✓ Branch 0 taken 271541 times.
✓ Branch 1 taken 178176 times.
 449717 if (packet_buffer->head) {
578
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 271521 times.
 271541 if (flags & FF_PACKETLIST_FLAG_PREPEND) {
579 20 pktl->next = packet_buffer->head;
580 20 packet_buffer->head = pktl;
581 20 update_end_point = 0;
582 } else {
583 271521 packet_buffer->tail->next = pktl;
584 }
585 } else
586 178176 packet_buffer->head = pktl;
587
588
2/2
✓ Branch 0 taken 449697 times.
✓ Branch 1 taken 20 times.
 449717 if (update_end_point) {
589 /* Add the packet in the buffered packet list. */
590 449697 packet_buffer->tail = pktl;
591 }
592
593 449717 return 0;
594 }
595
596 395448 int avpriv_packet_list_get(PacketList *pkt_buffer,
597 AVPacket *pkt)
598 {
599 395448 PacketListEntry *pktl = pkt_buffer->head;
600
2/2
✓ Branch 0 taken 54 times.
✓ Branch 1 taken 395394 times.
 395448 if (!pktl)
601 54 return AVERROR(EAGAIN);
602 395394 *pkt = pktl->pkt;
603 395394 pkt_buffer->head = pktl->next;
604
2/2
✓ Branch 0 taken 173937 times.
✓ Branch 1 taken 221457 times.
 395394 if (!pkt_buffer->head)
605 173937 pkt_buffer->tail = NULL;
606 395394 av_freep(&pktl);
607 395394 return 0;
608 }
609
610 56374 void avpriv_packet_list_free(PacketList *pkt_buf)
611 {
612 56374 PacketListEntry *tmp = pkt_buf->head;
613
614
2/2
✓ Branch 0 taken 83125 times.
✓ Branch 1 taken 56374 times.
 139499 while (tmp) {
615 83125 PacketListEntry *pktl = tmp;
616 83125 tmp = pktl->next;
617 83125 av_packet_unref(&pktl->pkt);
618 83125 av_freep(&pktl);
619 }
620 56374 pkt_buf->head = pkt_buf->tail = NULL;
621 56374 }
622
623 12508 int ff_side_data_set_encoder_stats(AVPacket *pkt, int quality, int64_t *error, int error_count, int pict_type)
624 {
625 uint8_t *side_data;
626 size_t side_data_size;
627 int i;
628
629 12508 side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_QUALITY_STATS, &side_data_size);
630
1/2
✓ Branch 0 taken 12508 times.
✗ Branch 1 not taken.
 12508 if (!side_data) {
631 12508 side_data_size = 4+4+8*error_count;
632 12508 side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_QUALITY_STATS,
633 side_data_size);
634 }
635
636
2/4
✓ Branch 0 taken 12508 times.
✗ Branch 1 not taken.
✗ Branch 2 not taken.
✓ Branch 3 taken 12508 times.
 12508 if (!side_data || side_data_size < 4+4+8*error_count)
637 ✗ return AVERROR(ENOMEM);
638
639 12508 AV_WL32(side_data , quality );
640 12508 side_data[4] = pict_type;
641 12508 side_data[5] = error_count;
642
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 12508 times.
 12508 for (i = 0; i<error_count; i++)
643 ✗ AV_WL64(side_data+8 + 8*i , error[i]);
644
645 12508 return 0;
646 }
647
648 ✗ int ff_side_data_set_prft(AVPacket *pkt, int64_t timestamp)
649 {
650 AVProducerReferenceTime *prft;
651 uint8_t *side_data;
652 size_t side_data_size;
653
654 ✗ side_data = av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &side_data_size);
655 ✗ if (!side_data) {
656 ✗ side_data_size = sizeof(AVProducerReferenceTime);
657 ✗ side_data = av_packet_new_side_data(pkt, AV_PKT_DATA_PRFT, side_data_size);
658 }
659
660 ✗ if (!side_data || side_data_size < sizeof(AVProducerReferenceTime))
661 ✗ return AVERROR(ENOMEM);
662
663 ✗ prft = (AVProducerReferenceTime *)side_data;
664 ✗ prft->wallclock = timestamp;
665 ✗ prft->flags = 0;
666
667 ✗ return 0;
668 }
669
670 1146601 const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd, int nb_sd,
671 enum AVPacketSideDataType type)
672 {
673
2/2
✓ Branch 0 taken 58135 times.
✓ Branch 1 taken 1146498 times.
 1204633 for (int i = 0; i < nb_sd; i++)
674
2/2
✓ Branch 0 taken 103 times.
✓ Branch 1 taken 58032 times.
 58135 if (sd[i].type == type)
675 103 return &sd[i];
676
677 1146498 return NULL;
678 }
679
680 855 static AVPacketSideData *packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
681 enum AVPacketSideDataType type,
682 void *data, size_t size)
683 {
684 855 AVPacketSideData *sd = *psd, *tmp;
685 855 int nb_sd = *pnb_sd;
686
687
2/2
✓ Branch 0 taken 69 times.
✓ Branch 1 taken 854 times.
 923 for (int i = 0; i < nb_sd; i++) {
688
2/2
✓ Branch 0 taken 68 times.
✓ Branch 1 taken 1 times.
 69 if (sd[i].type != type)
689 68 continue;
690
691 1 av_free(sd[i].data);
692 1 sd[i].data = data;
693 1 sd[i].size = size;
694 1 return &sd[i];
695 }
696
697
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 854 times.
 854 if (nb_sd == INT_MAX)
698 ✗ return NULL;
699
700 854 tmp = av_realloc_array(sd, nb_sd + 1, sizeof(*tmp));
701
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 854 times.
 854 if (!tmp)
702 ✗ return NULL;
703
704 854 *psd = sd = tmp;
705 854 sd[nb_sd].type = type;
706 854 sd[nb_sd].data = data;
707 854 sd[nb_sd].size = size;
708 854 *pnb_sd = nb_sd + 1;
709
710 854 return &sd[nb_sd];
711 }
712
713 485 AVPacketSideData *av_packet_side_data_add(AVPacketSideData **psd, int *pnb_sd,
714 enum AVPacketSideDataType type,
715 void *data, size_t size, int flags)
716 {
717 485 return packet_side_data_add(psd, pnb_sd, type, data, size);
718 }
719
720 370 AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
721 enum AVPacketSideDataType type,
722 size_t size, int flags)
723 {
724 370 AVPacketSideData *sd = NULL;
725 uint8_t *data;
726
727
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 370 times.
 370 if (size > SIZE_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
728 ✗ return NULL;
729
730 370 data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
731
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 370 times.
 370 if (!data)
732 ✗ return NULL;
733 370 memset(data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
734
735 370 sd = packet_side_data_add(psd, pnb_sd, type, data, size);
736
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 370 times.
 370 if (!sd)
737 ✗ av_freep(&data);
738
739 370 return sd;
740 }
741
742 1 void av_packet_side_data_remove(AVPacketSideData *sd, int *pnb_sd,
743 enum AVPacketSideDataType type)
744 {
745 1 int nb_sd = *pnb_sd;
746
747
1/2
✓ Branch 0 taken 1 times.
✗ Branch 1 not taken.
 1 for (int i = nb_sd - 1; i >= 0; i--) {
748
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1 times.
 1 if (sd[i].type != type)
749 ✗ continue;
750 1 av_free(sd[i].data);
751 1 sd[i] = sd[--nb_sd];
752 1 break;
753 }
754
755 1 *pnb_sd = nb_sd;
756 1 }
757
758 336083 void av_packet_side_data_free(AVPacketSideData **psd, int *pnb_sd)
759 {
760 336083 AVPacketSideData *sd = *psd;
761 336083 int nb_sd = *pnb_sd;
762
763
2/2
✓ Branch 0 taken 5108 times.
✓ Branch 1 taken 336083 times.
 341191 for (int i = 0; i < nb_sd; i++)
764 5108 av_free(sd[i].data);
765
766 336083 av_freep(psd);
767 336083 *pnb_sd = 0;
768 336083 }
769
770 69648 static void *container_packet_alloc(void *opaque)
771 {
772 69648 return av_packet_alloc();
773 }
774
775 916257 static void container_packet_reset(void *opaque, void *obj)
776 {
777 916257 av_packet_unref(obj);
778 916257 }
779
780 69648 static void container_packet_free(void *opaque, void *obj)
781 {
782 69648 AVPacket *pkt = obj;
783 69648 av_packet_free(&pkt);
784 69648 }
785
786 1803322 static int container_packet_transfer(void *opaque, void *dst, void *src, unsigned flags)
787 {
788
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 1803322 times.
 1803322 if (flags & AV_CONTAINER_FIFO_FLAG_REF)
789 ✗ return av_packet_ref(dst, src);
790
791 1803322 av_packet_move_ref(dst, src);
792 1803322 return 0;
793 }
794
795 15714 AVContainerFifo *av_container_fifo_alloc_avpacket(unsigned flags)
796 {
797 15714 return av_container_fifo_alloc(NULL, container_packet_alloc,
798 container_packet_reset, container_packet_free,
799 container_packet_transfer, 0);
800 }
801