FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavformat/utils.c
Date: 2025-10-27 03:13:05
Exec Total Coverage
Lines: 219 371 59.0%
Functions: 21 30 70.0%
Branches: 129 291 44.3%
Line Branch Exec Source
1 /*
2 * various utility functions for use within FFmpeg
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 <stdint.h>
23 #include <time.h>
24
25 #include "config.h"
26
27 #include "libavutil/avassert.h"
28 #include "libavutil/avstring.h"
29 #include "libavutil/bprint.h"
30 #include "libavutil/dict.h"
31 #include "libavutil/internal.h"
32 #include "libavutil/mem.h"
33 #include "libavutil/opt.h"
34 #include "libavutil/parseutils.h"
35 #include "libavutil/time.h"
36 #include "libavutil/time_internal.h"
37
38 #include "libavcodec/internal.h"
39
40 #include "avformat.h"
41 #include "avio_internal.h"
42 #include "internal.h"
43 #if CONFIG_NETWORK
44 #include "network.h"
45 #endif
46 #include "os_support.h"
47 #include "urldecode.h"
48
49 /**
50 * @file
51 * various utility functions for use within FFmpeg
52 */
53
54 /* an arbitrarily chosen "sane" max packet size -- 50M */
55 #define SANE_CHUNK_SIZE (50000000)
56
57 /* Read the data in sane-sized chunks and append to pkt.
58 * Return the number of bytes read or an error. */
59 272431 static int append_packet_chunked(AVIOContext *s, AVPacket *pkt, int size)
60 {
61 272431 int orig_size = pkt->size;
62 int ret;
63
64 do {
65 272431 int prev_size = pkt->size;
66 int read_size;
67
68 /* When the caller requests a lot of data, limit it to the amount
69 * left in file or SANE_CHUNK_SIZE when it is not known. */
70 272431 read_size = size;
71
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 272431 if (read_size > SANE_CHUNK_SIZE/10) {
72 ✗ read_size = ffio_limit(s, read_size);
73 // If filesize/maxsize is unknown, limit to SANE_CHUNK_SIZE
74 ✗ if (ffiocontext(s)->maxsize < 0)
75 ✗ read_size = FFMIN(read_size, SANE_CHUNK_SIZE);
76 }
77
78 272431 ret = av_grow_packet(pkt, read_size);
79
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 272431 if (ret < 0)
80 ✗ break;
81
82 272431 ret = avio_read(s, pkt->data + prev_size, read_size);
83
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 272431 if (ret != read_size) {
84 928 av_shrink_packet(pkt, prev_size + FFMAX(ret, 0));
85 928 break;
86 }
87
88 271503 size -= read_size;
89
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 271503 } while (size > 0);
90
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 272431 if (size > 0)
91 883 pkt->flags |= AV_PKT_FLAG_CORRUPT;
92
93
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 272431 if (!pkt->size)
94 2255 av_packet_unref(pkt);
95
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 272431 return pkt->size > orig_size ? pkt->size - orig_size : ret;
96 }
97
98 263001 int av_get_packet(AVIOContext *s, AVPacket *pkt, int size)
99 {
100 #if FF_API_INIT_PACKET
101 FF_DISABLE_DEPRECATION_WARNINGS
102 263001 av_init_packet(pkt);
103 263001 pkt->data = NULL;
104 263001 pkt->size = 0;
105 FF_ENABLE_DEPRECATION_WARNINGS
106 #else
107 av_packet_unref(pkt);
108 #endif
109 263001 pkt->pos = avio_tell(s);
110
111 263001 return append_packet_chunked(s, pkt, size);
112 }
113
114 10020 int av_append_packet(AVIOContext *s, AVPacket *pkt, int size)
115 {
116
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 10020 if (!pkt->size)
117 590 return av_get_packet(s, pkt, size);
118 9430 return append_packet_chunked(s, pkt, size);
119 }
120
121 1001 int av_filename_number_test(const char *filename)
122 {
123 AVBPrint bp;
124
125
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 1001 if (!filename)
126 ✗ return 0;
127 1001 av_bprint_init(&bp, 0, AV_BPRINT_SIZE_COUNT_ONLY);
128 1001 return (ff_bprint_get_frame_filename(&bp, filename, 1, AV_FRAME_FILENAME_FLAGS_IGNORE_TRUNCATION) >= 0);
129 }
130
131 /**********************************************************/
132
133 1326 unsigned int ff_codec_get_tag(const AVCodecTag *tags, enum AVCodecID id)
134 {
135
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 9925 while (tags->id != AV_CODEC_ID_NONE) {
136
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 9923 if (tags->id == id)
137 1324 return tags->tag;
138 8599 tags++;
139 }
140 2 return 0;
141 }
142
143 3089 enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
144 {
145
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 270527 for (int i = 0; tags[i].id != AV_CODEC_ID_NONE; i++)
146
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 269605 if (tag == tags[i].tag)
147 2167 return tags[i].id;
148
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 84369 for (int i = 0; tags[i].id != AV_CODEC_ID_NONE; i++)
149
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 83452 if (ff_toupper4(tag) == ff_toupper4(tags[i].tag))
150 5 return tags[i].id;
151 917 return AV_CODEC_ID_NONE;
152 }
153
154 556 enum AVCodecID ff_get_pcm_codec_id(int bps, int flt, int be, int sflags)
155 {
156
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 556 if (bps <= 0 || bps > 64)
157 ✗ return AV_CODEC_ID_NONE;
158
159
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 556 if (flt) {
160
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 4 switch (bps) {
161 2 case 32:
162
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 2 return be ? AV_CODEC_ID_PCM_F32BE : AV_CODEC_ID_PCM_F32LE;
163 2 case 64:
164
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 2 return be ? AV_CODEC_ID_PCM_F64BE : AV_CODEC_ID_PCM_F64LE;
165 ✗ default:
166 ✗ return AV_CODEC_ID_NONE;
167 }
168 } else {
169 552 bps += 7;
170 552 bps >>= 3;
171
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 552 if (sflags & (1 << (bps - 1))) {
172
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 534 switch (bps) {
173 ✗ case 1:
174 ✗ return AV_CODEC_ID_PCM_S8;
175 519 case 2:
176
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 519 return be ? AV_CODEC_ID_PCM_S16BE : AV_CODEC_ID_PCM_S16LE;
177 12 case 3:
178
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 12 return be ? AV_CODEC_ID_PCM_S24BE : AV_CODEC_ID_PCM_S24LE;
179 3 case 4:
180
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 3 return be ? AV_CODEC_ID_PCM_S32BE : AV_CODEC_ID_PCM_S32LE;
181 ✗ case 8:
182 ✗ return be ? AV_CODEC_ID_PCM_S64BE : AV_CODEC_ID_PCM_S64LE;
183 ✗ default:
184 ✗ return AV_CODEC_ID_NONE;
185 }
186 } else {
187
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 18 switch (bps) {
188 18 case 1:
189 18 return AV_CODEC_ID_PCM_U8;
190 ✗ case 2:
191 ✗ return be ? AV_CODEC_ID_PCM_U16BE : AV_CODEC_ID_PCM_U16LE;
192 ✗ case 3:
193 ✗ return be ? AV_CODEC_ID_PCM_U24BE : AV_CODEC_ID_PCM_U24LE;
194 ✗ case 4:
195 ✗ return be ? AV_CODEC_ID_PCM_U32BE : AV_CODEC_ID_PCM_U32LE;
196 ✗ default:
197 ✗ return AV_CODEC_ID_NONE;
198 }
199 }
200 }
201 }
202
203 6181 unsigned int av_codec_get_tag(const AVCodecTag *const *tags, enum AVCodecID id)
204 {
205 unsigned int tag;
206
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 6181 if (!av_codec_get_tag2(tags, id, &tag))
207 13 return 0;
208 6168 return tag;
209 }
210
211 9582 int av_codec_get_tag2(const AVCodecTag * const *tags, enum AVCodecID id,
212 unsigned int *tag)
213 {
214
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 18160 for (int i = 0; tags && tags[i]; i++) {
215 18129 const AVCodecTag *codec_tags = tags[i];
216
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 794523 while (codec_tags->id != AV_CODEC_ID_NONE) {
217
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 785945 if (codec_tags->id == id) {
218 9551 *tag = codec_tags->tag;
219 9551 return 1;
220 }
221 776394 codec_tags++;
222 }
223 }
224 31 return 0;
225 }
226
227 193 enum AVCodecID av_codec_get_id(const AVCodecTag *const *tags, unsigned int tag)
228 {
229
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 357 for (int i = 0; tags && tags[i]; i++) {
230 294 enum AVCodecID id = ff_codec_get_id(tags[i], tag);
231
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 294 if (id != AV_CODEC_ID_NONE)
232 130 return id;
233 }
234 63 return AV_CODEC_ID_NONE;
235 }
236
237 949 int ff_alloc_extradata(AVCodecParameters *par, int size)
238 {
239 949 av_freep(&par->extradata);
240 949 par->extradata_size = 0;
241
242
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 949 if (size < 0 || size >= INT32_MAX - AV_INPUT_BUFFER_PADDING_SIZE)
243 ✗ return AVERROR(EINVAL);
244
245 949 par->extradata = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE);
246
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 949 if (!par->extradata)
247 ✗ return AVERROR(ENOMEM);
248
249 949 memset(par->extradata + size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
250 949 par->extradata_size = size;
251
252 949 return 0;
253 }
254
255 /*******************************************************/
256
257 37 uint64_t ff_ntp_time(void)
258 {
259 37 return (av_gettime() / 1000) * 1000 + NTP_OFFSET_US;
260 }
261
262 ✗ uint64_t ff_get_formatted_ntp_time(uint64_t ntp_time_us)
263 {
264 uint64_t ntp_ts, frac_part, sec;
265 uint32_t usec;
266
267 //current ntp time in seconds and micro seconds
268 ✗ sec = ntp_time_us / 1000000;
269 ✗ usec = ntp_time_us % 1000000;
270
271 //encoding in ntp timestamp format
272 ✗ frac_part = usec * 0xFFFFFFFFULL;
273 ✗ frac_part /= 1000000;
274
275 ✗ if (sec > 0xFFFFFFFFULL)
276 ✗ av_log(NULL, AV_LOG_WARNING, "NTP time format roll over detected\n");
277
278 ✗ ntp_ts = sec << 32;
279 ✗ ntp_ts |= frac_part;
280
281 ✗ return ntp_ts;
282 }
283
284 ✗ uint64_t ff_parse_ntp_time(uint64_t ntp_ts)
285 {
286 ✗ uint64_t sec = ntp_ts >> 32;
287 ✗ uint64_t frac_part = ntp_ts & 0xFFFFFFFFULL;
288 ✗ uint64_t usec = (frac_part * 1000000) / 0xFFFFFFFFULL;
289
290 ✗ return (sec * 1000000) + usec;
291 }
292
293 156117 int ff_bprint_get_frame_filename(struct AVBPrint *buf, const char *path, int64_t number, int flags)
294 {
295 const char *p;
296 char c;
297 int nd, percentd_found;
298
299 156117 p = path;
300 156117 percentd_found = 0;
301 for (;;) {
302 11898955 c = *p++;
303
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 11898955 if (c == '\0')
304 156117 break;
305
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 11742838 if (c == '%') {
306 do {
307 155402 nd = 0;
308
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 466094 while (av_isdigit(*p)) {
309
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 310692 if (nd >= INT_MAX / 10 - 255)
310 ✗ goto fail;
311 310692 nd = nd * 10 + *p++ - '0';
312 }
313 155402 c = *p++;
314
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 155402 } while (av_isdigit(c));
315
316
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 155402 switch (c) {
317 ✗ case '%':
318 ✗ goto addchar;
319 155402 case 'd':
320
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 155402 if (!(flags & AV_FRAME_FILENAME_FLAGS_MULTIPLE) && percentd_found)
321 ✗ goto fail;
322 155402 percentd_found = 1;
323
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 155402 if (number < 0)
324 ✗ nd += 1;
325 155402 av_bprintf(buf, "%0*" PRId64, nd, number);
326 155402 break;
327 ✗ default:
328 ✗ goto fail;
329 }
330 } else {
331 11587436 addchar:
332 11587436 av_bprint_chars(buf, c, 1);
333 }
334 }
335
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 156117 if (!percentd_found)
336 715 goto fail;
337
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 155402 if (!(flags & AV_FRAME_FILENAME_FLAGS_IGNORE_TRUNCATION) && !av_bprint_is_complete(buf))
338 ✗ return AVERROR(ENOMEM);
339 155402 return 0;
340 715 fail:
341 715 return AVERROR(EINVAL);
342 }
343
344 ✗ static int get_frame_filename(char *buf, int buf_size, const char *path, int64_t number, int flags)
345 {
346 AVBPrint bp;
347 ✗ av_bprint_init_for_buffer(&bp, buf, buf_size);
348 ✗ return ff_bprint_get_frame_filename(&bp, path, number, flags) < 0 ? -1 : 0;
349 }
350
351 ✗ int av_get_frame_filename2(char *buf, int buf_size, const char *path, int number, int flags)
352 {
353 ✗ return get_frame_filename(buf, buf_size, path, number, flags);
354 }
355
356 ✗ int av_get_frame_filename(char *buf, int buf_size, const char *path, int number)
357 {
358 ✗ return get_frame_filename(buf, buf_size, path, number, 0);
359 }
360
361 9 void av_url_split(char *proto, int proto_size,
362 char *authorization, int authorization_size,
363 char *hostname, int hostname_size,
364 int *port_ptr, char *path, int path_size, const char *url)
365 {
366 const char *p, *ls, *at, *at2, *col, *brk;
367
368
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 9 if (port_ptr)
369 9 *port_ptr = -1;
370
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 9 if (proto_size > 0)
371 9 proto[0] = 0;
372
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 9 if (authorization_size > 0)
373 9 authorization[0] = 0;
374
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 9 if (hostname_size > 0)
375 9 hostname[0] = 0;
376
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 9 if (path_size > 0)
377 9 path[0] = 0;
378
379 /* parse protocol */
380
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 9 if ((p = strchr(url, ':'))) {
381 8 av_strlcpy(proto, url, FFMIN(proto_size, p + 1 - url));
382 8 p++; /* skip ':' */
383
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 8 if (*p == '/')
384 8 p++;
385
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 8 if (*p == '/')
386 8 p++;
387 } else {
388 /* no protocol means plain filename */
389 1 av_strlcpy(path, url, path_size);
390 1 return;
391 }
392
393 /* separate path from hostname */
394 8 ls = p + strcspn(p, "/?#");
395 8 av_strlcpy(path, ls, path_size);
396
397 /* the rest is hostname, use that to parse auth/port */
398
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 8 if (ls != p) {
399 /* authorization (user[:pass]@hostname) */
400 8 at2 = p;
401
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 10 while ((at = strchr(p, '@')) && at < ls) {
402 2 av_strlcpy(authorization, at2,
403 2 FFMIN(authorization_size, at + 1 - at2));
404 2 p = at + 1; /* skip '@' */
405 }
406
407
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 8 if (*p == '[' && (brk = strchr(p, ']')) && brk < ls) {
408 /* [host]:port */
409 ✗ av_strlcpy(hostname, p + 1,
410 ✗ FFMIN(hostname_size, brk - p));
411 ✗ if (brk[1] == ':' && port_ptr)
412 ✗ *port_ptr = atoi(brk + 2);
413
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 8 } else if ((col = strchr(p, ':')) && col < ls) {
414 1 av_strlcpy(hostname, p,
415 1 FFMIN(col + 1 - p, hostname_size));
416
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 1 if (port_ptr)
417 1 *port_ptr = atoi(col + 1);
418 } else
419 7 av_strlcpy(hostname, p,
420 7 FFMIN(ls + 1 - p, hostname_size));
421 }
422 }
423
424 ✗ int ff_mkdir_p(const char *path)
425 {
426 ✗ int ret = 0;
427 ✗ char *temp = av_strdup(path);
428 ✗ char *pos = temp;
429 ✗ char tmp_ch = '\0';
430
431 ✗ if (!path || !temp) {
432 ✗ return -1;
433 }
434
435 ✗ if (!av_strncasecmp(temp, "/", 1) || !av_strncasecmp(temp, "\\", 1)) {
436 ✗ pos++;
437 ✗ } else if (!av_strncasecmp(temp, "./", 2) || !av_strncasecmp(temp, ".\\", 2)) {
438 ✗ pos += 2;
439 }
440
441 ✗ for ( ; *pos != '\0'; ++pos) {
442 ✗ if (*pos == '/' || *pos == '\\') {
443 ✗ tmp_ch = *pos;
444 ✗ *pos = '\0';
445 ✗ ret = mkdir(temp, 0755);
446 ✗ *pos = tmp_ch;
447 }
448 }
449
450 ✗ if ((*(pos - 1) != '/') && (*(pos - 1) != '\\')) {
451 ✗ ret = mkdir(temp, 0755);
452 }
453
454 ✗ av_free(temp);
455 ✗ return ret;
456 }
457
458 3498 char *ff_data_to_hex(char *buff, const uint8_t *src, int s, int lowercase)
459 {
460 static const char hex_table_uc[16] = { '0', '1', '2', '3',
461 '4', '5', '6', '7',
462 '8', '9', 'A', 'B',
463 'C', 'D', 'E', 'F' };
464 static const char hex_table_lc[16] = { '0', '1', '2', '3',
465 '4', '5', '6', '7',
466 '8', '9', 'a', 'b',
467 'c', 'd', 'e', 'f' };
468
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 3498 const char *hex_table = lowercase ? hex_table_lc : hex_table_uc;
469
470
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 59480 for (int i = 0; i < s; i++) {
471 55982 buff[i * 2] = hex_table[src[i] >> 4];
472 55982 buff[i * 2 + 1] = hex_table[src[i] & 0xF];
473 }
474 3498 buff[2 * s] = '\0';
475
476 3498 return buff;
477 }
478
479 ✗ int ff_hex_to_data(uint8_t *data, const char *p)
480 {
481 int c, len, v;
482
483 ✗ len = 0;
484 ✗ v = 1;
485 for (;;) {
486 ✗ p += strspn(p, SPACE_CHARS);
487 ✗ if (*p == '\0')
488 ✗ break;
489 ✗ c = av_toupper((unsigned char) *p++);
490 ✗ if (c >= '0' && c <= '9')
491 ✗ c = c - '0';
492 ✗ else if (c >= 'A' && c <= 'F')
493 ✗ c = c - 'A' + 10;
494 else
495 break;
496 ✗ v = (v << 4) | c;
497 ✗ if (v & 0x100) {
498 ✗ if (data)
499 ✗ data[len] = v;
500 ✗ len++;
501 ✗ v = 1;
502 }
503 }
504 ✗ return len;
505 }
506
507 1 void ff_parse_key_value(const char *str, ff_parse_key_val_cb callback_get_buf,
508 void *context)
509 {
510 1 const char *ptr = str;
511
512 /* Parse key=value pairs. */
513 1 for (;;) {
514 const char *key;
515 2 char *dest = NULL, *dest_end;
516 2 int key_len, dest_len = 0;
517
518 /* Skip whitespace and potential commas. */
519
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 2 while (*ptr && (av_isspace(*ptr) || *ptr == ','))
520 ✗ ptr++;
521
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 2 if (!*ptr)
522 1 break;
523
524 1 key = ptr;
525
526
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 1 if (!(ptr = strchr(key, '=')))
527 ✗ break;
528 1 ptr++;
529 1 key_len = ptr - key;
530
531 1 callback_get_buf(context, key, key_len, &dest, &dest_len);
532
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 1 dest_end = dest ? dest + dest_len - 1 : NULL;
533
534
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 1 if (*ptr == '\"') {
535 1 ptr++;
536
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 9 while (*ptr && *ptr != '\"') {
537
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 8 if (*ptr == '\\') {
538 ✗ if (!ptr[1])
539 ✗ break;
540 ✗ if (dest && dest < dest_end)
541 ✗ *dest++ = ptr[1];
542 ✗ ptr += 2;
543 } else {
544
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 8 if (dest && dest < dest_end)
545 8 *dest++ = *ptr;
546 8 ptr++;
547 }
548 }
549
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 1 if (*ptr == '\"')
550 1 ptr++;
551 } else {
552 ✗ for (; *ptr && !(av_isspace(*ptr) || *ptr == ','); ptr++)
553 ✗ if (dest && dest < dest_end)
554 ✗ *dest++ = *ptr;
555 }
556
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 1 if (dest)
557 1 *dest = 0;
558 }
559 1 }
560
561 8570 int avformat_network_init(void)
562 {
563 #if CONFIG_NETWORK
564 int ret;
565
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 8570 if ((ret = ff_network_init()) < 0)
566 ✗ return ret;
567
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 8570 if ((ret = ff_tls_init()) < 0)
568 ✗ return ret;
569 #endif
570 8570 return 0;
571 }
572
573 8570 int avformat_network_deinit(void)
574 {
575 #if CONFIG_NETWORK
576 8570 ff_network_close();
577 8570 ff_tls_deinit();
578 #endif
579 8570 return 0;
580 }
581
582 376 int ff_is_http_proto(const char *filename) {
583 376 const char *proto = avio_find_protocol_name(filename);
584
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 376 return proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;
585 }
586
587 9 int ff_bprint_to_codecpar_extradata(AVCodecParameters *par, struct AVBPrint *buf)
588 {
589 int ret;
590 char *str;
591
592 9 ret = av_bprint_finalize(buf, &str);
593
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 9 if (ret < 0)
594 ✗ return ret;
595
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 9 if (!av_bprint_is_complete(buf)) {
596 ✗ av_free(str);
597 ✗ return AVERROR(ENOMEM);
598 }
599
600 9 par->extradata = str;
601 /* Note: the string is NUL terminated (so extradata can be read as a
602 * string), but the ending character is not accounted in the size (in
603 * binary formats you are likely not supposed to mux that character). When
604 * extradata is copied, it is also padded with AV_INPUT_BUFFER_PADDING_SIZE
605 * zeros. */
606 9 par->extradata_size = buf->len;
607 9 return 0;
608 }
609
610 572 int ff_dict_set_timestamp(AVDictionary **dict, const char *key, int64_t timestamp)
611 {
612 572 time_t seconds = timestamp / 1000000;
613 struct tm *ptm, tmbuf;
614 572 ptm = gmtime_r(&seconds, &tmbuf);
615
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 572 if (ptm) {
616 char buf[32];
617
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 572 if (!strftime(buf, sizeof(buf), "%Y-%m-%dT%H:%M:%S", ptm))
618 ✗ return AVERROR_EXTERNAL;
619 572 av_strlcatf(buf, sizeof(buf), ".%06dZ", (int)(timestamp % 1000000));
620 572 return av_dict_set(dict, key, buf, 0);
621 } else {
622 ✗ return AVERROR_EXTERNAL;
623 }
624 }
625
626 ✗ static const AVOption* find_opt(void *obj, const char *name, size_t len)
627 {
628 char decoded_name[128];
629
630 ✗ if (ff_urldecode_len(decoded_name, sizeof(decoded_name), name, len, 1) < 0)
631 ✗ return NULL;
632
633 ✗ return av_opt_find(obj, decoded_name, NULL, 0, 0);
634 }
635
636 ✗ int ff_parse_opts_from_query_string(void *obj, const char *str, int allow_unknown)
637 {
638 const AVOption *opt;
639 char optval[512];
640 int ret;
641
642 ✗ if (*str == '?')
643 ✗ str++;
644 ✗ while (*str) {
645 ✗ size_t len = strcspn(str, "=&");
646 ✗ opt = find_opt(obj, str, len);
647 ✗ if (!opt) {
648 ✗ if (!allow_unknown) {
649 ✗ av_log(obj, AV_LOG_ERROR, "Query string option '%.*s' does not exist\n", (int)len, str);
650 ✗ return AVERROR_OPTION_NOT_FOUND;
651 }
652 ✗ av_log(obj, AV_LOG_VERBOSE, "Ignoring unknown query string option '%.*s'\n", (int)len, str);
653 }
654 ✗ str += len;
655 ✗ if (!opt) {
656 ✗ len = strcspn(str, "&");
657 ✗ str += len;
658 ✗ } else if (*str == '&' || *str == '\0') {
659 /* Check for bool options without value, e.g. "?verify".
660 * Unfortunately "listen" is a tri-state INT for some protocols so
661 * we also have to allow that for backward compatibility. */
662 ✗ if (opt->type != AV_OPT_TYPE_BOOL && strcmp(opt->name, "listen")) {
663 ✗ av_log(obj, AV_LOG_ERROR, "Non-bool query string option '%s' has no value\n", opt->name);
664 ✗ return AVERROR(EINVAL);
665 }
666 ✗ ret = av_opt_set_int(obj, opt->name, 1, 0);
667 ✗ if (ret < 0)
668 ✗ return ret;
669 } else {
670 av_assert2(*str == '=');
671 ✗ str++;
672 ✗ len = strcspn(str, "&");
673 ✗ if (ff_urldecode_len(optval, sizeof(optval), str, len, 1) < 0) {
674 ✗ av_log(obj, AV_LOG_ERROR, "Query string option '%s' value is too long\n", opt->name);
675 ✗ return AVERROR(EINVAL);
676 }
677 ✗ ret = av_opt_set(obj, opt->name, optval, 0);
678 ✗ if (ret < 0)
679 ✗ return ret;
680 ✗ str += len;
681 }
682 ✗ if (*str)
683 ✗ str++;
684 }
685 ✗ return 0;
686 }
687