FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/fftools/cmdutils.c
Date: 2026-09-17 06:33:28
Exec Total Coverage
Lines: 553 885 62.5%
Functions: 34 42 81.0%
Branches: 410 755 54.3%

Line Branch Exec Source
1 /*
2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 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 #include <stdint.h>
24 #include <stdlib.h>
25 #include <errno.h>
26 #include <math.h>
27
28 /* Include only the enabled headers since some compilers (namely, Sun
29 Studio) will not omit unused inline functions and create undefined
30 references to libraries that are not being built. */
31
32 #include "config.h"
33 #include "libavformat/avformat.h"
34 #include "libswscale/swscale.h"
35 #include "libswresample/swresample.h"
36 #include "libavutil/avassert.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/bprint.h"
39 #include "libavutil/display.h"
40 #include "libavutil/getenv_utf8.h"
41 #include "libavutil/mem.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/eval.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/opt.h"
46 #include "cmdutils.h"
47 #include "fopen_utf8.h"
48 #include "opt_common.h"
49 #ifdef _WIN32
50 #include <windows.h>
51 #include "compat/w32dlfcn.h"
52 #endif
53
54 AVDictionary *sws_dict;
55 AVDictionary *swr_opts;
56 AVDictionary *format_opts, *codec_opts;
57
58 int hide_banner = 0;
59
60 17942 void uninit_opts(void)
61 {
62 17942 av_dict_free(&swr_opts);
63 17942 av_dict_free(&sws_dict);
64 17942 av_dict_free(&format_opts);
65 17942 av_dict_free(&codec_opts);
66 17942 }
67
68 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
69 {
70 vfprintf(stdout, fmt, vl);
71 }
72
73 9115 void init_dynload(void)
74 {
75 #if HAVE_SETDLLDIRECTORY && defined(_WIN32)
76 /* Calling SetDllDirectory with the empty string (but not NULL) removes the
77 * current working directory from the DLL search path as a security pre-caution. */
78 SetDllDirectory("");
79 #endif
80 9115 }
81
82 40203 int parse_number(const char *context, const char *numstr, enum OptionType type,
83 double min, double max, double *dst)
84 {
85 char *tail;
86 const char *error;
87 40203 double d = av_strtod(numstr, &tail);
88
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40203 if (*tail)
89 error = "Expected number for %s but found: %s\n";
90
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40203 else if (d < min || d > max)
91 error = "The value for %s was %s which is not within %f - %f\n";
92
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40203 else if (type == OPT_TYPE_INT64 && (int64_t)d != d)
93 error = "Expected int64 for %s but found %s\n";
94
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40203 else if (type == OPT_TYPE_INT && (int)d != d)
95 error = "Expected int for %s but found %s\n";
96 else {
97 40203 *dst = d;
98 40203 return 0;
99 }
100
101 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
102 return AVERROR(EINVAL);
103 }
104
105 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
106 int rej_flags)
107 {
108 const OptionDef *po;
109 int first;
110
111 first = 1;
112 for (po = options; po->name; po++) {
113 char buf[128];
114
115 if (((po->flags & req_flags) != req_flags) ||
116 (po->flags & rej_flags))
117 continue;
118
119 if (first) {
120 printf("%s\n", msg);
121 first = 0;
122 }
123 av_strlcpy(buf, po->name, sizeof(buf));
124
125 if (po->flags & OPT_FLAG_PERSTREAM)
126 av_strlcat(buf, "[:<stream_spec>]", sizeof(buf));
127 else if (po->flags & OPT_FLAG_SPEC)
128 av_strlcat(buf, "[:<spec>]", sizeof(buf));
129
130 if (po->argname)
131 av_strlcatf(buf, sizeof(buf), " <%s>", po->argname);
132
133 printf("-%-17s %s\n", buf, po->help);
134 }
135 printf("\n");
136 }
137
138 void show_help_children(const AVClass *class, int flags)
139 {
140 void *iter = NULL;
141 const AVClass *child;
142 if (class->option) {
143 av_opt_show2(&class, NULL, flags, 0);
144 printf("\n");
145 }
146
147 while (child = av_opt_child_class_iterate(class, &iter))
148 show_help_children(child, flags);
149 }
150
151 1352090 static const OptionDef *find_option(const OptionDef *po, const char *name)
152 {
153
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1352090 if (*name == '/')
154 396 name++;
155
156
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200950791 while (po->name) {
157 const char *end;
158
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200182639 if (av_strstart(name, po->name, &end) && (!*end || *end == ':'))
159 break;
160 199598701 po++;
161 }
162 1352090 return po;
163 }
164
165 /* _WIN32 means using the windows libc - cygwin doesn't define that
166 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
167 * it doesn't provide the actual command line via GetCommandLineW(). */
168 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
169 #include <shellapi.h>
170 /* Will be leaked on exit */
171 static char** win32_argv_utf8 = NULL;
172 static int win32_argc = 0;
173
174 /**
175 * Prepare command line arguments for executable.
176 * For Windows - perform wide-char to UTF-8 conversion.
177 * Input arguments should be main() function arguments.
178 * @param argc_ptr Arguments number (including executable)
179 * @param argv_ptr Arguments list.
180 */
181 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
182 {
183 char *argstr_flat;
184 wchar_t **argv_w;
185 int i, buffsize = 0, offset = 0;
186
187 if (win32_argv_utf8) {
188 *argc_ptr = win32_argc;
189 *argv_ptr = win32_argv_utf8;
190 return;
191 }
192
193 win32_argc = 0;
194 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
195 if (win32_argc <= 0 || !argv_w)
196 return;
197
198 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
199 for (i = 0; i < win32_argc; i++)
200 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
201 NULL, 0, NULL, NULL);
202
203 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
204 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
205 if (!win32_argv_utf8) {
206 LocalFree(argv_w);
207 return;
208 }
209
210 for (i = 0; i < win32_argc; i++) {
211 win32_argv_utf8[i] = &argstr_flat[offset];
212 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
213 &argstr_flat[offset],
214 buffsize - offset, NULL, NULL);
215 }
216 win32_argv_utf8[i] = NULL;
217 LocalFree(argv_w);
218
219 *argc_ptr = win32_argc;
220 *argv_ptr = win32_argv_utf8;
221 }
222 #else
223 9115 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
224 {
225 /* nothing to do */
226 9115 }
227 #endif /* HAVE_COMMANDLINETOARGVW */
228
229 565975 static int opt_has_arg(const OptionDef *o)
230 {
231
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565975 if (o->type == OPT_TYPE_BOOL)
232 179583 return 0;
233
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386392 if (o->type == OPT_TYPE_FUNC)
234 135650 return !!(o->flags & OPT_FUNC_ARG);
235 250742 return 1;
236 }
237
238 105366 static int write_option(void *optctx, const OptionDef *po, const char *opt,
239 const char *arg, const OptionDef *defs)
240 {
241 /* new-style options contain an offset into optctx, old-style address of
242 * a global var*/
243 210732 void *dst = po->flags & OPT_FLAG_OFFSET ?
244
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105366 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
245 105366 char *arg_allocated = NULL;
246
247 105366 enum OptionType so_type = po->type;
248
249 105366 SpecifierOptList *sol = NULL;
250 double num;
251 105366 int ret = 0;
252
253
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105366 if (*opt == '/') {
254 66 opt++;
255
256
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66 if (!opt_has_arg(po)) {
257 av_log(NULL, AV_LOG_FATAL,
258 "Requested to load an argument from file for an option '%s'"
259 " which does not take an argument\n",
260 po->name);
261 return AVERROR(EINVAL);
262 }
263
264 66 arg_allocated = read_file_to_string(arg);
265
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66 if (!arg_allocated) {
266 av_log(NULL, AV_LOG_FATAL,
267 "Error reading the value for option '%s' from file: %s\n",
268 opt, arg);
269 return AVERROR(EINVAL);
270 }
271
272 66 arg = arg_allocated;
273 }
274
275
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105366 if (po->flags & OPT_FLAG_SPEC) {
276 34217 const char *p = strchr(opt, ':');
277 char *str;
278
279 34217 sol = dst;
280 34217 ret = GROW_ARRAY(sol->opt, sol->nb_opt);
281
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34217 if (ret < 0)
282 goto finish;
283
284
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34217 str = av_strdup(p ? p + 1 : "");
285
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34217 if (!str) {
286 ret = AVERROR(ENOMEM);
287 goto finish;
288 }
289 34217 sol->opt[sol->nb_opt - 1].specifier = str;
290
291
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34217 if (po->flags & OPT_FLAG_PERSTREAM) {
292 33892 ret = stream_specifier_parse(&sol->opt[sol->nb_opt - 1].stream_spec,
293 str, 0, NULL);
294
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33892 if (ret < 0)
295 goto finish;
296 }
297
298 34217 dst = &sol->opt[sol->nb_opt - 1].u;
299 }
300
301
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105366 if (po->type == OPT_TYPE_STRING) {
302 char *str;
303
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41064 if (arg_allocated) {
304 27 str = arg_allocated;
305 27 arg_allocated = NULL;
306 } else
307 41037 str = av_strdup(arg);
308 41064 av_freep(dst);
309
310
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41064 if (!str) {
311 ret = AVERROR(ENOMEM);
312 goto finish;
313 }
314
315 41064 *(char **)dst = str;
316
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64302 } else if (po->type == OPT_TYPE_BOOL || po->type == OPT_TYPE_INT) {
317 34453 ret = parse_number(opt, arg, OPT_TYPE_INT64, INT_MIN, INT_MAX, &num);
318
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34453 if (ret < 0)
319 goto finish;
320
321 34453 *(int *)dst = num;
322 34453 so_type = OPT_TYPE_INT;
323
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29849 } else if (po->type == OPT_TYPE_INT64) {
324 5446 ret = parse_number(opt, arg, OPT_TYPE_INT64, INT64_MIN, (double)INT64_MAX, &num);
325
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5446 if (ret < 0)
326 goto finish;
327
328 5446 *(int64_t *)dst = num;
329
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24403 } else if (po->type == OPT_TYPE_TIME) {
330 1391 ret = av_parse_time(dst, arg, 1);
331
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1391 if (ret < 0) {
332 av_log(NULL, AV_LOG_ERROR, "Invalid duration for option %s: %s\n",
333 opt, arg);
334 goto finish;
335 }
336 1391 so_type = OPT_TYPE_INT64;
337
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23012 } else if (po->type == OPT_TYPE_FLOAT) {
338 3 ret = parse_number(opt, arg, OPT_TYPE_FLOAT, -INFINITY, INFINITY, &num);
339
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3 if (ret < 0)
340 goto finish;
341
342 3 *(float *)dst = num;
343
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23009 } else if (po->type == OPT_TYPE_DOUBLE) {
344 301 ret = parse_number(opt, arg, OPT_TYPE_DOUBLE, -INFINITY, INFINITY, &num);
345
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301 if (ret < 0)
346 goto finish;
347
348 301 *(double *)dst = num;
349 } else {
350
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22708 av_assert0(po->type == OPT_TYPE_FUNC && po->u.func_arg);
351
352 22708 ret = po->u.func_arg(optctx, opt, arg);
353
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22708 if (ret < 0) {
354 if ((strcmp(opt, "init_hw_device") != 0) || (strcmp(arg, "list") != 0)) {
355 av_log(NULL, AV_LOG_ERROR,
356 "Failed to set value '%s' for option '%s': %s\n",
357 arg, opt, av_err2str(ret));
358 }
359 goto finish;
360 }
361 }
362
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105366 if (po->flags & OPT_EXIT) {
363 2 ret = AVERROR_EXIT;
364 2 goto finish;
365 }
366
367
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105364 if (sol) {
368 34217 sol->type = so_type;
369
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37025 sol->opt_canon = (po->flags & OPT_HAS_CANON) ?
370 2808 find_option(defs, po->u1.name_canon) : po;
371 }
372
373 71147 finish:
374 105366 av_freep(&arg_allocated);
375 105366 return ret;
376 }
377
378 10958 int parse_option(void *optctx, const char *opt, const char *arg,
379 const OptionDef *options)
380 {
381 static const OptionDef opt_avoptions = {
382 .name = "AVOption passthrough",
383 .type = OPT_TYPE_FUNC,
384 .flags = OPT_FUNC_ARG,
385 .u.func_arg = opt_default,
386 };
387
388 const OptionDef *po;
389 int ret;
390
391 10958 po = find_option(options, opt);
392
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10958 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
393 /* handle 'no' bool option */
394 1 po = find_option(options, opt + 2);
395
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1 if ((po->name && po->type == OPT_TYPE_BOOL))
396 1 arg = "0";
397
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10957 } else if (po->type == OPT_TYPE_BOOL)
398 273 arg = "1";
399
400
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10958 if (!po->name)
401 229 po = &opt_avoptions;
402
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10958 if (!po->name) {
403 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
404 return AVERROR(EINVAL);
405 }
406
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10958 if (opt_has_arg(po) && !arg) {
407 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
408 return AVERROR(EINVAL);
409 }
410
411 10958 ret = write_option(optctx, po, opt, arg, options);
412
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10958 if (ret < 0)
413 return ret;
414
415 10958 return opt_has_arg(po);
416 }
417
418 288 int parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
419 int (*parse_arg_function)(void *, const char*))
420 {
421 const char *opt;
422 288 int optindex, handleoptions = 1, ret;
423
424 /* perform system-dependent conversions for arguments list */
425 288 prepare_app_arguments(&argc, &argv);
426
427 /* parse options */
428 288 optindex = 1;
429
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1709 while (optindex < argc) {
430 1421 opt = argv[optindex++];
431
432
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1421 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
433
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1145 if (opt[1] == '-' && opt[2] == '\0') {
434 handleoptions = 0;
435 continue;
436 }
437 1145 opt++;
438
439
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1145 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
440 return ret;
441 1145 optindex += ret;
442 } else {
443
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276 if (parse_arg_function) {
444 276 ret = parse_arg_function(optctx, opt);
445
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276 if (ret < 0)
446 return ret;
447 }
448 }
449 }
450
451 288 return 0;
452 }
453
454 25383 int parse_optgroup(void *optctx, OptionGroup *g, const OptionDef *defs)
455 {
456 int i, ret;
457
458 25383 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
459 25383 g->group_def->name, g->arg);
460
461
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119789 for (i = 0; i < g->nb_opts; i++) {
462 94408 Option *o = &g->opts[i];
463
464
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94408 if (g->group_def->flags &&
465
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51302 !(g->group_def->flags & o->opt->flags)) {
466 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
467 "%s %s -- you are trying to apply an input option to an "
468 "output file or vice versa. Move this option before the "
469 "file it belongs to.\n", o->key, o->opt->help,
470 g->group_def->name, g->arg);
471 return AVERROR(EINVAL);
472 }
473
474 94408 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
475 94408 o->key, o->opt->help, o->val);
476
477 94408 ret = write_option(optctx, o->opt, o->key, o->val, defs);
478
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94408 if (ret < 0)
479 2 return ret;
480 }
481
482 25381 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
483
484 25381 return 0;
485 }
486
487 45537 int locate_option(int argc, char **argv, const OptionDef *options,
488 const char *optname)
489 {
490 const OptionDef *po;
491 int i;
492
493
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1081867 for (i = 1; i < argc; i++) {
494 1036444 const char *cur_opt = argv[i];
495
496
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1036444 if (!(cur_opt[0] == '-' && cur_opt[1]))
497 45392 continue;
498 991052 cur_opt++;
499
500 991052 po = find_option(options, cur_opt);
501
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991052 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
502 131465 po = find_option(options, cur_opt + 2);
503
504
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991052 if ((!po->name && !strcmp(cur_opt, optname)) ||
505
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991052 (po->name && !strcmp(optname, po->name)))
506 114 return i;
507
508
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990938 if (!po->name || opt_has_arg(po))
509 818935 i++;
510 }
511 45423 return 0;
512 }
513
514 static void dump_argument(FILE *report_file, const char *a)
515 {
516 const unsigned char *p;
517
518 for (p = a; *p; p++)
519 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
520 *p == '_' || (*p >= 'a' && *p <= 'z')))
521 break;
522 if (!*p) {
523 fputs(a, report_file);
524 return;
525 }
526 fputc('"', report_file);
527 for (p = a; *p; p++) {
528 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
529 fprintf(report_file, "\\%c", *p);
530 else if (*p < ' ' || *p > '~')
531 fprintf(report_file, "\\x%02x", *p);
532 else
533 fputc(*p, report_file);
534 }
535 fputc('"', report_file);
536 }
537
538 9115 static void check_options(const OptionDef *po)
539 {
540
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1760519 while (po->name) {
541
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1751404 if (po->flags & OPT_PERFILE)
542
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1085721 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT | OPT_DECODER));
543
544
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1751404 if (po->type == OPT_TYPE_FUNC)
545
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651096 av_assert0(!(po->flags & (OPT_FLAG_OFFSET | OPT_FLAG_SPEC)));
546
547 // OPT_FUNC_ARG can only be ser for OPT_TYPE_FUNC
548
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1751404 av_assert0((po->type == OPT_TYPE_FUNC) || !(po->flags & OPT_FUNC_ARG));
549
550 1751404 po++;
551 }
552 9115 }
553
554 9115 void parse_loglevel(int argc, char **argv, const OptionDef *options)
555 {
556 int idx;
557 char *env;
558
559 9115 check_options(options);
560
561 9115 idx = locate_option(argc, argv, options, "loglevel");
562
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9115 if (!idx)
563 9077 idx = locate_option(argc, argv, options, "v");
564
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9115 if (idx && argv[idx + 1])
565 81 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
566 9115 idx = locate_option(argc, argv, options, "report");
567 9115 env = getenv_utf8("FFREPORT");
568
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9115 if (env || idx) {
569 FILE *report_file = NULL;
570 init_report(env, &report_file);
571 if (report_file) {
572 int i;
573 fprintf(report_file, "Command line:\n");
574 for (i = 0; i < argc; i++) {
575 dump_argument(report_file, argv[i]);
576 fputc(i < argc - 1 ? ' ' : '\n', report_file);
577 }
578 fflush(report_file);
579 }
580 }
581 9115 freeenv_utf8(env);
582 9115 idx = locate_option(argc, argv, options, "hide_banner");
583
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9115 if (idx)
584 33 hide_banner = 1;
585 9115 }
586
587 328328 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
588 int opt_flags, int search_flags)
589 {
590 328328 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
591
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328328 if(o && !o->flags)
592 6 return NULL;
593 328322 return o;
594 }
595
596 #define FLAGS ((o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0)
597 121624 int opt_default(void *optctx, const char *opt, const char *arg)
598 {
599 const AVOption *o;
600 121624 int consumed = 0;
601 char opt_stripped[128];
602 const char *p;
603 121624 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
604 #if CONFIG_SWSCALE
605 121624 const AVClass *sc = sws_get_class();
606 #endif
607 #if CONFIG_SWRESAMPLE
608 121624 const AVClass *swr_class = swr_get_class();
609 #endif
610
611
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121624 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
612 av_log_set_level(AV_LOG_DEBUG);
613
614
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121624 if (!(p = strchr(opt, ':')))
615 121612 p = opt + strlen(opt);
616 121624 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
617
618
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121624 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
619 58835 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
620
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75107 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
621 16272 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
622
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62790 av_dict_set(&codec_opts, opt, arg, FLAGS);
623 62790 consumed = 1;
624 }
625
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121624 if ((o = opt_find(&fc, opt, NULL, 0,
626 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
627
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16405 av_dict_set(&format_opts, opt, arg, FLAGS);
628
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16405 if (consumed)
629 87 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
630 16405 consumed = 1;
631 }
632 #if CONFIG_SWSCALE
633
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121624 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
634 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
635
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16224 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
636
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16224 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
637
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16224 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
638 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
639 return AVERROR(EINVAL);
640 }
641
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16224 av_dict_set(&sws_dict, opt, arg, FLAGS);
642
643 16224 consumed = 1;
644 }
645 #else
646 if (!consumed && !strcmp(opt, "sws_flags")) {
647 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
648 consumed = 1;
649 }
650 #endif
651 #if CONFIG_SWRESAMPLE
652
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121624 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
653 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
654 av_dict_set(&swr_opts, opt, arg, FLAGS);
655 consumed = 1;
656 }
657 #endif
658
659
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121624 if (consumed)
660 95332 return 0;
661 26292 return AVERROR_OPTION_NOT_FOUND;
662 }
663
664 /*
665 * Check whether given option is a group separator.
666 *
667 * @return index of the group definition that matched or -1 if none
668 */
669 197243 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
670 const char *opt)
671 {
672 int i;
673
674
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773515 for (i = 0; i < nb_groups; i++) {
675 584001 const OptionGroupDef *p = &groups[i];
676
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584001 if (p->sep && !strcmp(p->sep, opt))
677 7729 return i;
678 }
679
680 189514 return -1;
681 }
682
683 /*
684 * Finish parsing an option group.
685 *
686 * @param group_idx which group definition should this group belong to
687 * @param arg argument of the group delimiting option
688 */
689 16558 static int finish_group(OptionParseContext *octx, int group_idx,
690 const char *arg)
691 {
692 16558 OptionGroupList *l = &octx->groups[group_idx];
693 OptionGroup *g;
694 int ret;
695
696 16558 ret = GROW_ARRAY(l->groups, l->nb_groups);
697
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16558 if (ret < 0)
698 return ret;
699
700 16558 g = &l->groups[l->nb_groups - 1];
701
702 16558 *g = octx->cur_group;
703 16558 g->arg = arg;
704 16558 g->group_def = l->group_def;
705 16558 g->sws_dict = sws_dict;
706 16558 g->swr_opts = swr_opts;
707 16558 g->codec_opts = codec_opts;
708 16558 g->format_opts = format_opts;
709
710 16558 codec_opts = NULL;
711 16558 format_opts = NULL;
712 16558 sws_dict = NULL;
713 16558 swr_opts = NULL;
714
715 16558 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
716
717 16558 return ret;
718 }
719
720 /*
721 * Add an option instance to currently parsed group.
722 */
723 94411 static int add_opt(OptionParseContext *octx, const OptionDef *opt,
724 const char *key, const char *val)
725 {
726 94411 int global = !(opt->flags & OPT_PERFILE);
727
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94411 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
728 int ret;
729
730 94411 ret = GROW_ARRAY(g->opts, g->nb_opts);
731
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94411 if (ret < 0)
732 return ret;
733
734 94411 g->opts[g->nb_opts - 1].opt = opt;
735 94411 g->opts[g->nb_opts - 1].key = key;
736 94411 g->opts[g->nb_opts - 1].val = val;
737
738 94411 return 0;
739 }
740
741 8827 static int init_parse_context(OptionParseContext *octx,
742 const OptionGroupDef *groups, int nb_groups)
743 {
744 static const OptionGroupDef global_group = { "global" };
745 int i;
746
747 8827 memset(octx, 0, sizeof(*octx));
748
749 8827 octx->groups = av_calloc(nb_groups, sizeof(*octx->groups));
750
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8827 if (!octx->groups)
751 return AVERROR(ENOMEM);
752 8827 octx->nb_groups = nb_groups;
753
754
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35308 for (i = 0; i < octx->nb_groups; i++)
755 26481 octx->groups[i].group_def = &groups[i];
756
757 8827 octx->global_opts.group_def = &global_group;
758 8827 octx->global_opts.arg = "";
759
760 8827 return 0;
761 }
762
763 8827 void uninit_parse_context(OptionParseContext *octx)
764 {
765 int i, j;
766
767
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35308 for (i = 0; i < octx->nb_groups; i++) {
768 26481 OptionGroupList *l = &octx->groups[i];
769
770
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43039 for (j = 0; j < l->nb_groups; j++) {
771 16558 av_freep(&l->groups[j].opts);
772 16558 av_dict_free(&l->groups[j].codec_opts);
773 16558 av_dict_free(&l->groups[j].format_opts);
774
775 16558 av_dict_free(&l->groups[j].sws_dict);
776 16558 av_dict_free(&l->groups[j].swr_opts);
777 }
778 26481 av_freep(&l->groups);
779 }
780 8827 av_freep(&octx->groups);
781
782 8827 av_freep(&octx->cur_group.opts);
783 8827 av_freep(&octx->global_opts.opts);
784
785 8827 uninit_opts();
786 8827 }
787
788 8827 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
789 const OptionDef *options,
790 const OptionGroupDef *groups, int nb_groups)
791 {
792 int ret;
793 8827 int optindex = 1;
794 8827 int dashdash = -2;
795
796 /* perform system-dependent conversions for arguments list */
797 8827 prepare_app_arguments(&argc, &argv);
798
799 8827 ret = init_parse_context(octx, groups, nb_groups);
800
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8827 if (ret < 0)
801 return ret;
802
803 8827 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
804
805
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214899 while (optindex < argc) {
806 206072 const char *opt = argv[optindex++], *arg;
807 const OptionDef *po;
808 int group_idx;
809
810 206072 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
811
812
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206072 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
813 dashdash = optindex;
814 continue;
815 }
816 /* unnamed group separators, e.g. output filename */
817
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206072 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
818 8829 ret = finish_group(octx, 0, opt);
819
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8829 if (ret < 0)
820 return ret;
821
822 8829 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
823 8829 continue;
824 }
825 197243 opt++;
826
827 #define GET_ARG(arg) \
828 do { \
829 arg = argv[optindex++]; \
830 if (!arg) { \
831 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
832 return AVERROR(EINVAL); \
833 } \
834 } while (0)
835
836 /* named group separators, e.g. -i */
837 197243 group_idx = match_group_separator(groups, nb_groups, opt);
838
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197243 if (group_idx >= 0) {
839
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7729 GET_ARG(arg);
840 7729 ret = finish_group(octx, group_idx, arg);
841
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7729 if (ret < 0)
842 return ret;
843
844 7729 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
845 7729 groups[group_idx].name, arg);
846 7729 continue;
847 }
848
849 /* normal options */
850 189514 po = find_option(options, opt);
851
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189514 if (po->name) {
852
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68119 if (po->flags & OPT_EXIT) {
853 /* optional argument, e.g. -h */
854 2 arg = argv[optindex++];
855
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68117 } else if (opt_has_arg(po)) {
856
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60380 GET_ARG(arg);
857 } else {
858 7737 arg = "1";
859 }
860
861 68119 ret = add_opt(octx, po, opt, arg);
862
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68119 if (ret < 0)
863 return ret;
864
865 68119 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
866 68119 "argument '%s'.\n", po->name, po->help, arg);
867 68119 continue;
868 }
869
870 /* AVOptions */
871
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121395 if (argv[optindex]) {
872 121395 ret = opt_default(NULL, opt, argv[optindex]);
873
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121395 if (ret >= 0) {
874 95103 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
875 95103 "argument '%s'.\n", opt, argv[optindex]);
876 95103 optindex++;
877 95103 continue;
878
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26292 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
879 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
880 "with argument '%s'.\n", opt, argv[optindex]);
881 return ret;
882 }
883 }
884
885 /* boolean -nofoo options */
886
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52584 if (opt[0] == 'n' && opt[1] == 'o' &&
887 26292 (po = find_option(options, opt + 2)) &&
888
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26292 po->name && po->type == OPT_TYPE_BOOL) {
889 26292 ret = add_opt(octx, po, opt, "0");
890
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26292 if (ret < 0)
891 return ret;
892
893 26292 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
894 26292 "argument 0.\n", po->name, po->help);
895 26292 continue;
896 }
897
898 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
899 return AVERROR_OPTION_NOT_FOUND;
900 }
901
902
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8827 if (octx->cur_group.nb_opts || codec_opts || format_opts)
903 av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
904 "command: may be ignored.\n");
905
906 8827 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
907
908 8827 return 0;
909 }
910
911 int read_yesno(void)
912 {
913 int c = getchar();
914 int yesno = (av_toupper(c) == 'Y');
915
916 while (c != '\n' && c != EOF)
917 c = getchar();
918
919 return yesno;
920 }
921
922 FILE *get_preset_file(char *filename, size_t filename_size,
923 const char *preset_name, int is_path,
924 const char *codec_name)
925 {
926 FILE *f = NULL;
927 int i;
928 #if HAVE_GETMODULEHANDLE && defined(_WIN32)
929 char *datadir = NULL;
930 #endif
931 char *env_home = getenv_utf8("HOME");
932 char *env_ffmpeg_datadir = getenv_utf8("FFMPEG_DATADIR");
933 const char *base[3] = { env_ffmpeg_datadir,
934 env_home, /* index=1(HOME) is special: search in a .ffmpeg subfolder */
935 FFMPEG_DATADIR, };
936
937 if (is_path) {
938 av_strlcpy(filename, preset_name, filename_size);
939 f = fopen_utf8(filename, "r");
940 } else {
941 #if HAVE_GETMODULEHANDLE && defined(_WIN32)
942 wchar_t *datadir_w = get_module_filename(NULL);
943 base[2] = NULL;
944
945 if (wchartoutf8(datadir_w, &datadir))
946 datadir = NULL;
947 av_free(datadir_w);
948
949 if (datadir)
950 {
951 char *ls;
952 for (ls = datadir; *ls; ls++)
953 if (*ls == '\\') *ls = '/';
954
955 if (ls = strrchr(datadir, '/'))
956 {
957 ptrdiff_t datadir_len = ls - datadir;
958 size_t desired_size = datadir_len + strlen("/ffpresets") + 1;
959 char *new_datadir = av_realloc_array(
960 datadir, desired_size, sizeof *datadir);
961 if (new_datadir) {
962 datadir = new_datadir;
963 strcpy(datadir + datadir_len, "/ffpresets");
964 base[2] = datadir;
965 }
966 }
967 }
968 #endif
969 for (i = 0; i < 3 && !f; i++) {
970 if (!base[i])
971 continue;
972 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
973 i != 1 ? "" : "/.ffmpeg", preset_name);
974 f = fopen_utf8(filename, "r");
975 if (!f && codec_name) {
976 snprintf(filename, filename_size,
977 "%s%s/%s-%s.ffpreset",
978 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
979 preset_name);
980 f = fopen_utf8(filename, "r");
981 }
982 }
983 }
984
985 #if HAVE_GETMODULEHANDLE && defined(_WIN32)
986 av_free(datadir);
987 #endif
988 freeenv_utf8(env_ffmpeg_datadir);
989 freeenv_utf8(env_home);
990 return f;
991 }
992
993 17663 int cmdutils_isalnum(char c)
994 {
995
4/4
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17663 return (c >= '0' && c <= '9') ||
996
5/6
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✗ Branch 3 not taken.
✓ Branch 4 taken 49 times.
✓ Branch 5 taken 17613 times.
35375 (c >= 'A' && c <= 'Z') ||
997
1/2
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✗ Branch 1 not taken.
49 (c >= 'a' && c <= 'z');
998 }
999
1000 35113 void stream_specifier_uninit(StreamSpecifier *ss)
1001 {
1002 35113 av_freep(&ss->meta_key);
1003 35113 av_freep(&ss->meta_val);
1004 35113 av_freep(&ss->remainder);
1005
1006 35113 memset(ss, 0, sizeof(*ss));
1007 35113 }
1008
1009 35109 int stream_specifier_parse(StreamSpecifier *ss, const char *spec,
1010 int allow_remainder, void *logctx)
1011 {
1012 char *endptr;
1013 int ret;
1014
1015 35109 memset(ss, 0, sizeof(*ss));
1016
1017 35109 ss->idx = -1;
1018 35109 ss->media_type = AVMEDIA_TYPE_UNKNOWN;
1019 35109 ss->stream_list = STREAM_LIST_ALL;
1020
1021 35109 av_log(logctx, AV_LOG_TRACE, "Parsing stream specifier: %s\n", spec);
1022
1023
2/2
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87870 while (*spec) {
1024
3/4
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✗ Branch 3 not taken.
18271 if (*spec <= '9' && *spec >= '0') { /* opt:index */
1025 524 ss->idx = strtol(spec, &endptr, 0);
1026
1027
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524 av_assert0(endptr > spec);
1028 524 spec = endptr;
1029
1030 524 av_log(logctx, AV_LOG_TRACE,
1031 "Parsed index: %d; remainder: %s\n", ss->idx, spec);
1032
1033 // this terminates the specifier
1034 524 break;
1035
6/6
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✓ Branch 3 taken 1787 times.
✓ Branch 4 taken 121 times.
✓ Branch 5 taken 54 times.
17747 } else if ((*spec == 'v' || *spec == 'a' || *spec == 's' ||
1036
7/8
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✓ Branch 6 taken 17608 times.
✓ Branch 7 taken 24 times.
17753 *spec == 'd' || *spec == 't' || *spec == 'V') &&
1037 17632 !cmdutils_isalnum(*(spec + 1))) { /* opt:[vasdtV] */
1038
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17608 if (ss->media_type != AVMEDIA_TYPE_UNKNOWN) {
1039 av_log(logctx, AV_LOG_ERROR, "Stream type specified multiple times\n");
1040 ret = AVERROR(EINVAL);
1041 goto fail;
1042 }
1043
1044
5/7
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17608 switch (*spec++) {
1045 15770 case 'v': ss->media_type = AVMEDIA_TYPE_VIDEO; break;
1046 1781 case 'a': ss->media_type = AVMEDIA_TYPE_AUDIO; break;
1047 52 case 's': ss->media_type = AVMEDIA_TYPE_SUBTITLE; break;
1048 2 case 'd': ss->media_type = AVMEDIA_TYPE_DATA; break;
1049 3 case 't': ss->media_type = AVMEDIA_TYPE_ATTACHMENT; break;
1050 case 'V': ss->media_type = AVMEDIA_TYPE_VIDEO;
1051 ss->no_apic = 1; break;
1052 default: av_assert0(0);
1053 }
1054
1055 17608 av_log(logctx, AV_LOG_TRACE, "Parsed media type: %s; remainder: %s\n",
1056 av_get_media_type_string(ss->media_type), spec);
1057
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139 } else if (*spec == 'g' && *(spec + 1) == ':') {
1058
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43 if (ss->stream_list != STREAM_LIST_ALL)
1059 goto multiple_stream_lists;
1060
1061 43 spec += 2;
1062
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43 if (*spec == '#' || (*spec == 'i' && *(spec + 1) == ':')) {
1063 5 ss->stream_list = STREAM_LIST_GROUP_ID;
1064
1065
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5 spec += 1 + (*spec == 'i');
1066 } else
1067 38 ss->stream_list = STREAM_LIST_GROUP_IDX;
1068
1069 43 ss->list_id = strtol(spec, &endptr, 0);
1070
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43 if (spec == endptr) {
1071 av_log(logctx, AV_LOG_ERROR, "Expected stream group idx/ID, got: %s\n", spec);
1072 ret = AVERROR(EINVAL);
1073 goto fail;
1074 }
1075 43 spec = endptr;
1076
1077 43 av_log(logctx, AV_LOG_TRACE, "Parsed stream group %s: %"PRId64"; remainder: %s\n",
1078
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43 ss->stream_list == STREAM_LIST_GROUP_ID ? "ID" : "index", ss->list_id, spec);
1079
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96 } else if (*spec == 'p' && *(spec + 1) == ':') {
1080 if (ss->stream_list != STREAM_LIST_ALL)
1081 goto multiple_stream_lists;
1082
1083 ss->stream_list = STREAM_LIST_PROGRAM;
1084
1085 spec += 2;
1086 ss->list_id = strtol(spec, &endptr, 0);
1087 if (spec == endptr) {
1088 av_log(logctx, AV_LOG_ERROR, "Expected program ID, got: %s\n", spec);
1089 ret = AVERROR(EINVAL);
1090 goto fail;
1091 }
1092 spec = endptr;
1093
1094 av_log(logctx, AV_LOG_TRACE,
1095 "Parsed program ID: %"PRId64"; remainder: %s\n", ss->list_id, spec);
1096
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96 } else if (!strncmp(spec, "disp:", 5)) {
1097 1 const AVClass *st_class = av_stream_get_class();
1098 1 const AVOption *o = av_opt_find(&st_class, "disposition", NULL, 0, AV_OPT_SEARCH_FAKE_OBJ);
1099 1 char *disp = NULL;
1100 size_t len;
1101
1102
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1 av_assert0(o);
1103
1104
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1 if (ss->disposition) {
1105 av_log(logctx, AV_LOG_ERROR, "Multiple disposition specifiers\n");
1106 ret = AVERROR(EINVAL);
1107 goto fail;
1108 }
1109
1110 1 spec += 5;
1111
1112 29 for (len = 0; cmdutils_isalnum(spec[len]) ||
1113
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✓ Branch 5 taken 1 times.
57 spec[len] == '_' || spec[len] == '+'; len++)
1114 28 continue;
1115
1116 1 disp = av_strndup(spec, len);
1117
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1 if (!disp) {
1118 ret = AVERROR(ENOMEM);
1119 goto fail;
1120 }
1121
1122 1 ret = av_opt_eval_flags(&st_class, o, disp, &ss->disposition);
1123 1 av_freep(&disp);
1124
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1 if (ret < 0) {
1125 av_log(logctx, AV_LOG_ERROR, "Invalid disposition specifier\n");
1126 goto fail;
1127 }
1128
1129 1 spec += len;
1130
1131 1 av_log(logctx, AV_LOG_TRACE,
1132 "Parsed disposition: 0x%x; remainder: %s\n", ss->disposition, spec);
1133
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95 } else if (*spec == '#' ||
1134
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95 (*spec == 'i' && *(spec + 1) == ':')) {
1135 if (ss->stream_list != STREAM_LIST_ALL)
1136 goto multiple_stream_lists;
1137
1138 ss->stream_list = STREAM_LIST_STREAM_ID;
1139
1140 spec += 1 + (*spec == 'i');
1141 ss->list_id = strtol(spec, &endptr, 0);
1142 if (spec == endptr) {
1143 av_log(logctx, AV_LOG_ERROR, "Expected stream ID, got: %s\n", spec);
1144 ret = AVERROR(EINVAL);
1145 goto fail;
1146 }
1147 spec = endptr;
1148
1149 av_log(logctx, AV_LOG_TRACE,
1150 "Parsed stream ID: %"PRId64"; remainder: %s\n", ss->list_id, spec);
1151
1152 // this terminates the specifier
1153 break;
1154
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95 } else if (*spec == 'm' && *(spec + 1) == ':') {
1155 av_assert0(!ss->meta_key && !ss->meta_val);
1156
1157 spec += 2;
1158 ss->meta_key = av_get_token(&spec, ":");
1159 if (!ss->meta_key) {
1160 ret = AVERROR(ENOMEM);
1161 goto fail;
1162 }
1163 if (*spec == ':') {
1164 spec++;
1165 ss->meta_val = av_get_token(&spec, ":");
1166 if (!ss->meta_val) {
1167 ret = AVERROR(ENOMEM);
1168 goto fail;
1169 }
1170 }
1171
1172 av_log(logctx, AV_LOG_TRACE,
1173 "Parsed metadata: %s:%s; remainder: %s", ss->meta_key,
1174 ss->meta_val ? ss->meta_val : "<any value>", spec);
1175
1176 // this terminates the specifier
1177 break;
1178
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95 } else if (*spec == 'u' && (*(spec + 1) == '\0' || *(spec + 1) == ':')) {
1179 ss->usable_only = 1;
1180 spec++;
1181 av_log(logctx, AV_LOG_ERROR, "Parsed 'usable only'\n");
1182
1183 // this terminates the specifier
1184 break;
1185 } else
1186 break;
1187
1188
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17652 if (*spec == ':')
1189 299 spec++;
1190 }
1191
1192
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35109 if (*spec) {
1193
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95 if (!allow_remainder) {
1194 1 av_log(logctx, AV_LOG_ERROR,
1195 "Trailing garbage at the end of a stream specifier: %s\n",
1196 spec);
1197 1 ret = AVERROR(EINVAL);
1198 1 goto fail;
1199 }
1200
1201
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94 if (*spec == ':')
1202 spec++;
1203
1204 94 ss->remainder = av_strdup(spec);
1205
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94 if (!ss->remainder) {
1206 ret = AVERROR(EINVAL);
1207 goto fail;
1208 }
1209 }
1210
1211 35108 return 0;
1212
1213 multiple_stream_lists:
1214 av_log(logctx, AV_LOG_ERROR,
1215 "Cannot combine multiple program/group designators in a "
1216 "single stream specifier");
1217 ret = AVERROR(EINVAL);
1218
1219 1 fail:
1220 1 stream_specifier_uninit(ss);
1221 1 return ret;
1222 }
1223
1224 36857 unsigned stream_specifier_match(const StreamSpecifier *ss,
1225 const AVFormatContext *s, const AVStream *st,
1226 void *logctx)
1227 {
1228 36857 const AVStreamGroup *g = NULL;
1229 36857 const AVProgram *p = NULL;
1230 36857 int start_stream = 0, nb_streams;
1231 36857 int nb_matched = 0;
1232
1233
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36857 switch (ss->stream_list) {
1234 case STREAM_LIST_STREAM_ID:
1235 // <n-th> stream with given ID makes no sense and should be impossible to request
1236 av_assert0(ss->idx < 0);
1237 // return early if we know for sure the stream does not match
1238 if (st->id != ss->list_id)
1239 return 0;
1240 start_stream = st->index;
1241 nb_streams = st->index + 1;
1242 break;
1243 36742 case STREAM_LIST_ALL:
1244
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36742 start_stream = ss->idx >= 0 ? 0 : st->index;
1245 36742 nb_streams = st->index + 1;
1246 36742 break;
1247 case STREAM_LIST_PROGRAM:
1248 for (unsigned i = 0; i < s->nb_programs; i++) {
1249 if (s->programs[i]->id == ss->list_id) {
1250 p = s->programs[i];
1251 break;
1252 }
1253 }
1254 if (!p) {
1255 av_log(logctx, AV_LOG_WARNING, "No program with ID %"PRId64" exists,"
1256 " stream specifier can never match\n", ss->list_id);
1257 return 0;
1258 }
1259 nb_streams = p->nb_stream_indexes;
1260 break;
1261 17 case STREAM_LIST_GROUP_ID:
1262
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26 for (unsigned i = 0; i < s->nb_stream_groups; i++) {
1263
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26 if (ss->list_id == s->stream_groups[i]->id) {
1264 17 g = s->stream_groups[i];
1265 17 break;
1266 }
1267 }
1268 av_fallthrough;
1269 case STREAM_LIST_GROUP_IDX:
1270
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115 if (ss->stream_list == STREAM_LIST_GROUP_IDX &&
1271
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98 ss->list_id >= 0 && ss->list_id < s->nb_stream_groups)
1272 98 g = s->stream_groups[ss->list_id];
1273
1274
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115 if (!g) {
1275 av_log(logctx, AV_LOG_WARNING, "No stream group with group %s %"
1276 PRId64" exists, stream specifier can never match\n",
1277 ss->stream_list == STREAM_LIST_GROUP_ID ? "ID" : "index",
1278 ss->list_id);
1279 return 0;
1280 }
1281 115 nb_streams = g->nb_streams;
1282 115 break;
1283 default: av_assert0(0);
1284 }
1285
1286
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39070 for (int i = start_stream; i < nb_streams; i++) {
1287
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38549 const AVStream *candidate = s->streams[g ? g->streams[i]->index :
1288 p ? p->stream_index[i] : i];
1289
1290
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38549 if (ss->media_type != AVMEDIA_TYPE_UNKNOWN &&
1291
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22053 (ss->media_type != candidate->codecpar->codec_type ||
1292
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21269 (ss->no_apic && (candidate->disposition & AV_DISPOSITION_ATTACHED_PIC))))
1293 784 continue;
1294
1295
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37765 if (ss->meta_key) {
1296 const AVDictionaryEntry *tag = av_dict_get(candidate->metadata,
1297 ss->meta_key, NULL, 0);
1298
1299 if (!tag)
1300 continue;
1301 if (ss->meta_val && strcmp(tag->value, ss->meta_val))
1302 continue;
1303 }
1304
1305
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37765 if (ss->usable_only) {
1306 const AVCodecParameters *par = candidate->codecpar;
1307
1308 switch (par->codec_type) {
1309 case AVMEDIA_TYPE_AUDIO:
1310 if (!par->sample_rate || !par->ch_layout.nb_channels ||
1311 par->format == AV_SAMPLE_FMT_NONE)
1312 continue;
1313 break;
1314 case AVMEDIA_TYPE_VIDEO:
1315 if (!par->width || !par->height || par->format == AV_PIX_FMT_NONE)
1316 continue;
1317 break;
1318 case AVMEDIA_TYPE_UNKNOWN:
1319 continue;
1320 }
1321 }
1322
1323
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37765 if (ss->disposition &&
1324
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55 (candidate->disposition & ss->disposition) != ss->disposition)
1325 44 continue;
1326
1327
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37721 if (st == candidate)
1328
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36336 return ss->idx < 0 || ss->idx == nb_matched;
1329
1330 1385 nb_matched++;
1331 }
1332
1333 521 return 0;
1334 }
1335
1336 590 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1337 {
1338 StreamSpecifier ss;
1339 int ret;
1340
1341 590 ret = stream_specifier_parse(&ss, spec, 0, NULL);
1342
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590 if (ret < 0)
1343 1 return ret;
1344
1345 589 ret = stream_specifier_match(&ss, s, st, NULL);
1346 589 stream_specifier_uninit(&ss);
1347 589 return ret;
1348 }
1349
1350 unsigned stream_group_specifier_match(const StreamSpecifier *ss,
1351 const AVFormatContext *s, const AVStreamGroup *stg,
1352 void *logctx)
1353 {
1354 int start_stream_group = 0, nb_stream_groups;
1355 int nb_matched = 0;
1356
1357 if (ss->idx >= 0)
1358 return 0;
1359
1360 switch (ss->stream_list) {
1361 case STREAM_LIST_STREAM_ID:
1362 case STREAM_LIST_ALL:
1363 case STREAM_LIST_PROGRAM:
1364 return 0;
1365 case STREAM_LIST_GROUP_ID:
1366 // <n-th> stream with given ID makes no sense and should be impossible to request
1367 av_assert0(ss->idx < 0);
1368 // return early if we know for sure the stream does not match
1369 if (stg->id != ss->list_id)
1370 return 0;
1371 start_stream_group = stg->index;
1372 nb_stream_groups = stg->index + 1;
1373 break;
1374 case STREAM_LIST_GROUP_IDX:
1375 start_stream_group = ss->list_id >= 0 ? 0 : stg->index;
1376 nb_stream_groups = stg->index + 1;
1377 break;
1378 default: av_assert0(0);
1379 }
1380
1381 for (int i = start_stream_group; i < nb_stream_groups; i++) {
1382 const AVStreamGroup *candidate = s->stream_groups[i];
1383
1384 if (ss->meta_key) {
1385 const AVDictionaryEntry *tag = av_dict_get(candidate->metadata,
1386 ss->meta_key, NULL, 0);
1387
1388 if (!tag)
1389 continue;
1390 if (ss->meta_val && strcmp(tag->value, ss->meta_val))
1391 continue;
1392 }
1393
1394 if (ss->usable_only) {
1395 switch (candidate->type) {
1396 case AV_STREAM_GROUP_PARAMS_TILE_GRID: {
1397 const AVStreamGroupTileGrid *tg = candidate->params.tile_grid;
1398 if (!tg->coded_width || !tg->coded_height || !tg->nb_tiles ||
1399 !tg->width || !tg->height || !tg->offsets)
1400 continue;
1401 break;
1402 }
1403 default:
1404 continue;
1405 }
1406 }
1407
1408 if (ss->disposition &&
1409 (candidate->disposition & ss->disposition) != ss->disposition)
1410 continue;
1411
1412 if (stg == candidate)
1413 return ss->list_id < 0 || ss->list_id == nb_matched;
1414
1415 nb_matched++;
1416 }
1417
1418 return 0;
1419 }
1420
1421 26702 int filter_codec_opts(const AVDictionary *opts, enum AVCodecID codec_id,
1422 AVFormatContext *s, AVStream *st, const AVCodec *codec,
1423 AVDictionary **dst, AVDictionary **opts_used)
1424 {
1425 26702 AVDictionary *ret = NULL;
1426 26702 const AVDictionaryEntry *t = NULL;
1427 53404 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1428
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26702 : AV_OPT_FLAG_DECODING_PARAM;
1429 26702 char prefix = 0;
1430 26702 const AVClass *cc = avcodec_get_class();
1431
1432
4/4
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26702 switch (st->codecpar->codec_type) {
1433 20231 case AVMEDIA_TYPE_VIDEO:
1434 20231 prefix = 'v';
1435 20231 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1436 20231 break;
1437 6098 case AVMEDIA_TYPE_AUDIO:
1438 6098 prefix = 'a';
1439 6098 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1440 6098 break;
1441 270 case AVMEDIA_TYPE_SUBTITLE:
1442 270 prefix = 's';
1443 270 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1444 270 break;
1445 }
1446
1447
2/2
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107618 while (t = av_dict_iterate(opts, t)) {
1448 const AVClass *priv_class;
1449 80916 char *p = strchr(t->key, ':');
1450 80916 int used = 0;
1451
1452 /* check stream specification in opt name */
1453
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80916 if (p) {
1454 305 int err = check_stream_specifier(s, st, p + 1);
1455
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305 if (err < 0) {
1456 av_dict_free(&ret);
1457 return err;
1458
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305 } else if (!err)
1459 81 continue;
1460
1461 224 *p = 0;
1462 }
1463
1464
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80835 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1465 1919 !codec ||
1466
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2821 ((priv_class = codec->priv_class) &&
1467 902 av_opt_find(&priv_class, t->key, NULL, flags,
1468 AV_OPT_SEARCH_FAKE_OBJ))) {
1469 79292 av_dict_set(&ret, t->key, t->value, 0);
1470 79292 used = 1;
1471
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1548 } else if (t->key[0] == prefix &&
1472 5 av_opt_find(&cc, t->key + 1, NULL, flags,
1473 AV_OPT_SEARCH_FAKE_OBJ)) {
1474 1 av_dict_set(&ret, t->key + 1, t->value, 0);
1475 1 used = 1;
1476 }
1477
1478
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80835 if (p)
1479 224 *p = ':';
1480
1481
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80835 if (used && opts_used)
1482 51965 av_dict_set(opts_used, t->key, "", 0);
1483 }
1484
1485 26702 *dst = ret;
1486 26702 return 0;
1487 }
1488
1489 8012 int setup_find_stream_info_opts(AVFormatContext *s,
1490 AVDictionary *local_codec_opts,
1491 AVDictionary ***dst)
1492 {
1493 int ret;
1494 AVDictionary **opts;
1495
1496 8012 *dst = NULL;
1497
1498
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8012 if (!s->nb_streams)
1499 95 return 0;
1500
1501 7917 opts = av_calloc(s->nb_streams, sizeof(*opts));
1502
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7917 if (!opts)
1503 return AVERROR(ENOMEM);
1504
1505
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16572 for (int i = 0; i < s->nb_streams; i++) {
1506 8655 ret = filter_codec_opts(local_codec_opts, s->streams[i]->codecpar->codec_id,
1507 8655 s, s->streams[i], NULL, &opts[i], NULL);
1508
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8655 if (ret < 0)
1509 goto fail;
1510 }
1511 7917 *dst = opts;
1512 7917 return 0;
1513 fail:
1514 for (int i = 0; i < s->nb_streams; i++)
1515 av_dict_free(&opts[i]);
1516 av_freep(&opts);
1517 return ret;
1518 }
1519
1520 264287 int grow_array(void **array, int elem_size, int *size, int new_size)
1521 {
1522
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264287 if (new_size >= INT_MAX / elem_size) {
1523 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1524 return AVERROR(ERANGE);
1525 }
1526
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264287 if (*size < new_size) {
1527 264287 uint8_t *tmp = av_realloc_array(*array, new_size, elem_size);
1528
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264287 if (!tmp)
1529 return AVERROR(ENOMEM);
1530 264287 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
1531 264287 *size = new_size;
1532 264287 *array = tmp;
1533 264287 return 0;
1534 }
1535 return 0;
1536 }
1537
1538 49859 void *allocate_array_elem(void *ptr, size_t elem_size, int *nb_elems)
1539 {
1540 void *new_elem;
1541
1542 49859 new_elem = av_mallocz(elem_size);
1543
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49859 if (!new_elem)
1544 return NULL;
1545
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49859 if (av_dynarray_add_nofree(ptr, nb_elems, new_elem) < 0)
1546 av_freep(&new_elem);
1547
1548 49859 return new_elem;
1549 }
1550
1551 5809 double get_rotation(const int32_t *displaymatrix)
1552 {
1553 5809 double theta = 0;
1554
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5809 if (displaymatrix)
1555 5809 theta = -round(av_display_rotation_get(displaymatrix));
1556
1557 5809 theta -= 360*floor(theta/360 + 0.9/360);
1558
1559
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5809 if (fabs(theta - 90*round(theta/90)) > 2)
1560 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
1561 "If you want to help, upload a sample "
1562 "of this file to https://streams.videolan.org/upload/ "
1563 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
1564
1565 5809 return theta;
1566 }
1567
1568 /* read file contents into a string */
1569 74 char *read_file_to_string(const char *filename)
1570 {
1571 74 AVIOContext *pb = NULL;
1572 74 int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
1573 AVBPrint bprint;
1574 char *str;
1575
1576
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74 if (ret < 0) {
1577 av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
1578 return NULL;
1579 }
1580
1581 74 av_bprint_init(&bprint, 0, AV_BPRINT_SIZE_UNLIMITED);
1582 74 ret = avio_read_to_bprint(pb, &bprint, SIZE_MAX);
1583 74 avio_closep(&pb);
1584
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74 if (ret < 0) {
1585 av_bprint_finalize(&bprint, NULL);
1586 return NULL;
1587 }
1588 74 ret = av_bprint_finalize(&bprint, &str);
1589
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74 if (ret < 0)
1590 return NULL;
1591 74 return str;
1592 }
1593
1594 7726 void remove_avoptions(AVDictionary **a, AVDictionary *b)
1595 {
1596 7726 const AVDictionaryEntry *t = NULL;
1597
1598
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32942 while ((t = av_dict_iterate(b, t))) {
1599 25216 av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE);
1600 }
1601 7726 }
1602
1603 31693 int check_avoptions(AVDictionary *m)
1604 {
1605 31693 const AVDictionaryEntry *t = av_dict_iterate(m, NULL);
1606
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31693 if (t) {
1607 av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key);
1608 return AVERROR_OPTION_NOT_FOUND;
1609 }
1610
1611 31693 return 0;
1612 }
1613
1614 void dump_dictionary(void *ctx, const AVDictionary *m,
1615 const char *name, const char *indent,
1616 int log_level)
1617 {
1618 const AVDictionaryEntry *tag = NULL;
1619
1620 if (!m)
1621 return;
1622
1623 av_log(ctx, log_level, "%s%s:\n", indent, name);
1624 while ((tag = av_dict_iterate(m, tag))) {
1625 const char *p = tag->value;
1626 av_log(ctx, log_level, "%s %-16s: ", indent, tag->key);
1627 while (*p) {
1628 size_t len = strcspn(p, "\x8\xa\xb\xc\xd");
1629 av_log(ctx, log_level, "%.*s", (int)(FFMIN(255, len)), p);
1630 p += len;
1631 if (*p == 0xd) av_log(ctx, log_level, " ");
1632 if (*p == 0xa) av_log(ctx, log_level, "\n%s %-16s: ", indent, "");
1633 if (*p) p++;
1634 }
1635 av_log(ctx, log_level, "\n");
1636 }
1637 }
1638