GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/cmdutils.c Lines: 438 1219 35.9 %
Date: 2021-04-18 10:33:33 Branches: 335 1052 31.8 %

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 "compat/va_copy.h"
34
#include "libavformat/avformat.h"
35
#include "libavfilter/avfilter.h"
36
#include "libavdevice/avdevice.h"
37
#include "libavresample/avresample.h"
38
#include "libswscale/swscale.h"
39
#include "libswresample/swresample.h"
40
#include "libpostproc/postprocess.h"
41
#include "libavutil/attributes.h"
42
#include "libavutil/avassert.h"
43
#include "libavutil/avstring.h"
44
#include "libavutil/bprint.h"
45
#include "libavutil/display.h"
46
#include "libavutil/mathematics.h"
47
#include "libavutil/imgutils.h"
48
#include "libavutil/libm.h"
49
#include "libavutil/parseutils.h"
50
#include "libavutil/pixdesc.h"
51
#include "libavutil/eval.h"
52
#include "libavutil/dict.h"
53
#include "libavutil/opt.h"
54
#include "libavutil/cpu.h"
55
#include "libavutil/ffversion.h"
56
#include "libavutil/version.h"
57
#include "cmdutils.h"
58
#if HAVE_SYS_RESOURCE_H
59
#include <sys/time.h>
60
#include <sys/resource.h>
61
#endif
62
#ifdef _WIN32
63
#include <windows.h>
64
#endif
65
66
static int init_report(const char *env);
67
68
AVDictionary *sws_dict;
69
AVDictionary *swr_opts;
70
AVDictionary *format_opts, *codec_opts, *resample_opts;
71
72
static FILE *report_file;
73
static int report_file_level = AV_LOG_DEBUG;
74
int hide_banner = 0;
75
76
enum show_muxdemuxers {
77
    SHOW_DEFAULT,
78
    SHOW_DEMUXERS,
79
    SHOW_MUXERS,
80
};
81
82
18155
void init_opts(void)
83
{
84
18155
    av_dict_set(&sws_dict, "flags", "bicubic", 0);
85
18155
}
86
87
12114
void uninit_opts(void)
88
{
89
12114
    av_dict_free(&swr_opts);
90
12114
    av_dict_free(&sws_dict);
91
12114
    av_dict_free(&format_opts);
92
12114
    av_dict_free(&codec_opts);
93
12114
    av_dict_free(&resample_opts);
94
12114
}
95
96
void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
97
{
98
    vfprintf(stdout, fmt, vl);
99
}
100
101
static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
102
{
103
    va_list vl2;
104
    char line[1024];
105
    static int print_prefix = 1;
106
107
    va_copy(vl2, vl);
108
    av_log_default_callback(ptr, level, fmt, vl);
109
    av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
110
    va_end(vl2);
111
    if (report_file_level >= level) {
112
        fputs(line, report_file);
113
        fflush(report_file);
114
    }
115
}
116
117
6104
void init_dynload(void)
118
{
119
#if HAVE_SETDLLDIRECTORY && defined(_WIN32)
120
    /* Calling SetDllDirectory with the empty string (but not NULL) removes the
121
     * current working directory from the DLL search path as a security pre-caution. */
122
    SetDllDirectory("");
123
#endif
124
6104
}
125
126
static void (*program_exit)(int ret);
127
128
6104
void register_exit(void (*cb)(int ret))
129
{
130
6104
    program_exit = cb;
131
6104
}
132
133
6012
void exit_program(int ret)
134
{
135
6012
    if (program_exit)
136
6012
        program_exit(ret);
137
138
6012
    exit(ret);
139
}
140
141
28514
double parse_number_or_die(const char *context, const char *numstr, int type,
142
                           double min, double max)
143
{
144
    char *tail;
145
    const char *error;
146
28514
    double d = av_strtod(numstr, &tail);
147
28514
    if (*tail)
148
        error = "Expected number for %s but found: %s\n";
149

28514
    else if (d < min || d > max)
150
        error = "The value for %s was %s which is not within %f - %f\n";
151

28514
    else if (type == OPT_INT64 && (int64_t)d != d)
152
        error = "Expected int64 for %s but found %s\n";
153

28514
    else if (type == OPT_INT && (int)d != d)
154
        error = "Expected int for %s but found %s\n";
155
    else
156
28514
        return d;
157
    av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
158
    exit_program(1);
159
    return 0;
160
}
161
162
165
int64_t parse_time_or_die(const char *context, const char *timestr,
163
                          int is_duration)
164
{
165
    int64_t us;
166
165
    if (av_parse_time(&us, timestr, is_duration) < 0) {
167
        av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
168
               is_duration ? "duration" : "date", context, timestr);
169
        exit_program(1);
170
    }
171
165
    return us;
172
}
173
174
void show_help_options(const OptionDef *options, const char *msg, int req_flags,
175
                       int rej_flags, int alt_flags)
176
{
177
    const OptionDef *po;
178
    int first;
179
180
    first = 1;
181
    for (po = options; po->name; po++) {
182
        char buf[128];
183
184
        if (((po->flags & req_flags) != req_flags) ||
185
            (alt_flags && !(po->flags & alt_flags)) ||
186
            (po->flags & rej_flags))
187
            continue;
188
189
        if (first) {
190
            printf("%s\n", msg);
191
            first = 0;
192
        }
193
        av_strlcpy(buf, po->name, sizeof(buf));
194
        if (po->argname) {
195
            av_strlcat(buf, " ", sizeof(buf));
196
            av_strlcat(buf, po->argname, sizeof(buf));
197
        }
198
        printf("-%-17s  %s\n", buf, po->help);
199
    }
200
    printf("\n");
201
}
202
203
void show_help_children(const AVClass *class, int flags)
204
{
205
    void *iter = NULL;
206
    const AVClass *child;
207
    if (class->option) {
208
        av_opt_show2(&class, NULL, flags, 0);
209
        printf("\n");
210
    }
211
212
    while (child = av_opt_child_class_iterate(class, &iter))
213
        show_help_children(child, flags);
214
}
215
216
903047
static const OptionDef *find_option(const OptionDef *po, const char *name)
217
{
218
124096259
    while (po->name) {
219
        const char *end;
220

123585430
        if (av_strstart(name, po->name, &end) && (!*end || *end == ':'))
221
            break;
222
123193212
        po++;
223
    }
224
903047
    return po;
225
}
226
227
/* _WIN32 means using the windows libc - cygwin doesn't define that
228
 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
229
 * it doesn't provide the actual command line via GetCommandLineW(). */
230
#if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
231
#include <shellapi.h>
232
/* Will be leaked on exit */
233
static char** win32_argv_utf8 = NULL;
234
static int win32_argc = 0;
235
236
/**
237
 * Prepare command line arguments for executable.
238
 * For Windows - perform wide-char to UTF-8 conversion.
239
 * Input arguments should be main() function arguments.
240
 * @param argc_ptr Arguments number (including executable)
241
 * @param argv_ptr Arguments list.
242
 */
243
static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
244
{
245
    char *argstr_flat;
246
    wchar_t **argv_w;
247
    int i, buffsize = 0, offset = 0;
248
249
    if (win32_argv_utf8) {
250
        *argc_ptr = win32_argc;
251
        *argv_ptr = win32_argv_utf8;
252
        return;
253
    }
254
255
    win32_argc = 0;
256
    argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
257
    if (win32_argc <= 0 || !argv_w)
258
        return;
259
260
    /* determine the UTF-8 buffer size (including NULL-termination symbols) */
261
    for (i = 0; i < win32_argc; i++)
262
        buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
263
                                        NULL, 0, NULL, NULL);
264
265
    win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
266
    argstr_flat     = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
267
    if (!win32_argv_utf8) {
268
        LocalFree(argv_w);
269
        return;
270
    }
271
272
    for (i = 0; i < win32_argc; i++) {
273
        win32_argv_utf8[i] = &argstr_flat[offset];
274
        offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
275
                                      &argstr_flat[offset],
276
                                      buffsize - offset, NULL, NULL);
277
    }
278
    win32_argv_utf8[i] = NULL;
279
    LocalFree(argv_w);
280
281
    *argc_ptr = win32_argc;
282
    *argv_ptr = win32_argv_utf8;
283
}
284
#else
285
6104
static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
286
{
287
    /* nothing to do */
288
6104
}
289
#endif /* HAVE_COMMANDLINETOARGVW */
290
291
71671
static int write_option(void *optctx, const OptionDef *po, const char *opt,
292
                        const char *arg)
293
{
294
    /* new-style options contain an offset into optctx, old-style address of
295
     * a global var*/
296
143342
    void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
297
71671
                (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
298
    int *dstcount;
299
300
71671
    if (po->flags & OPT_SPEC) {
301
24707
        SpecifierOpt **so = dst;
302
24707
        char *p = strchr(opt, ':');
303
        char *str;
304
305
24707
        dstcount = (int *)(so + 1);
306
24707
        *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
307
24707
        str = av_strdup(p ? p + 1 : "");
308
24707
        if (!str)
309
            return AVERROR(ENOMEM);
310
24707
        (*so)[*dstcount - 1].specifier = str;
311
24707
        dst = &(*so)[*dstcount - 1].u;
312
    }
313
314
71671
    if (po->flags & OPT_STRING) {
315
        char *str;
316
28879
        str = av_strdup(arg);
317
28879
        av_freep(dst);
318
28879
        if (!str)
319
            return AVERROR(ENOMEM);
320
28879
        *(char **)dst = str;
321

42792
    } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
322
23515
        *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
323
19277
    } else if (po->flags & OPT_INT64) {
324
4269
        *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
325
15008
    } else if (po->flags & OPT_TIME) {
326
163
        *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
327
14845
    } else if (po->flags & OPT_FLOAT) {
328
1
        *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
329
14844
    } else if (po->flags & OPT_DOUBLE) {
330
254
        *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
331
14590
    } else if (po->u.func_arg) {
332
14590
        int ret = po->u.func_arg(optctx, opt, arg);
333
14590
        if (ret < 0) {
334
            av_log(NULL, AV_LOG_ERROR,
335
                   "Failed to set value '%s' for option '%s': %s\n",
336
                   arg, opt, av_err2str(ret));
337
            return ret;
338
        }
339
    }
340
71671
    if (po->flags & OPT_EXIT)
341
1
        exit_program(0);
342
343
71670
    return 0;
344
}
345
346
7855
int parse_option(void *optctx, const char *opt, const char *arg,
347
                 const OptionDef *options)
348
{
349
    const OptionDef *po;
350
    int ret;
351
352
7855
    po = find_option(options, opt);
353

7855
    if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
354
        /* handle 'no' bool option */
355
        po = find_option(options, opt + 2);
356
        if ((po->name && (po->flags & OPT_BOOL)))
357
            arg = "0";
358
7855
    } else if (po->flags & OPT_BOOL)
359
56
        arg = "1";
360
361
7855
    if (!po->name)
362
6
        po = find_option(options, "default");
363
7855
    if (!po->name) {
364
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
365
        return AVERROR(EINVAL);
366
    }
367

7855
    if (po->flags & HAS_ARG && !arg) {
368
        av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
369
        return AVERROR(EINVAL);
370
    }
371
372
7855
    ret = write_option(optctx, po, opt, arg);
373
7855
    if (ret < 0)
374
        return ret;
375
376
7855
    return !!(po->flags & HAS_ARG);
377
}
378
379
92
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
380
                   void (*parse_arg_function)(void *, const char*))
381
{
382
    const char *opt;
383
92
    int optindex, handleoptions = 1, ret;
384
385
    /* perform system-dependent conversions for arguments list */
386
92
    prepare_app_arguments(&argc, &argv);
387
388
    /* parse options */
389
92
    optindex = 1;
390
476
    while (optindex < argc) {
391
384
        opt = argv[optindex++];
392
393

384
        if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
394

301
            if (opt[1] == '-' && opt[2] == '\0') {
395
                handleoptions = 0;
396
                continue;
397
            }
398
301
            opt++;
399
400
301
            if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
401
                exit_program(1);
402
301
            optindex += ret;
403
        } else {
404
83
            if (parse_arg_function)
405
83
                parse_arg_function(optctx, opt);
406
        }
407
    }
408
92
}
409
410
18062
int parse_optgroup(void *optctx, OptionGroup *g)
411
{
412
    int i, ret;
413
414
18062
    av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
415
18062
           g->group_def->name, g->arg);
416
417
81877
    for (i = 0; i < g->nb_opts; i++) {
418
63816
        Option *o = &g->opts[i];
419
420
63816
        if (g->group_def->flags &&
421
35966
            !(g->group_def->flags & o->opt->flags)) {
422
            av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
423
                   "%s %s -- you are trying to apply an input option to an "
424
                   "output file or vice versa. Move this option before the "
425
                   "file it belongs to.\n", o->key, o->opt->help,
426
                   g->group_def->name, g->arg);
427
            return AVERROR(EINVAL);
428
        }
429
430
63816
        av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
431
63816
               o->key, o->opt->help, o->val);
432
433
63816
        ret = write_option(optctx, o->opt, o->key, o->val);
434
63815
        if (ret < 0)
435
            return ret;
436
    }
437
438
18061
    av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
439
440
18061
    return 0;
441
}
442
443
30520
int locate_option(int argc, char **argv, const OptionDef *options,
444
                  const char *optname)
445
{
446
    const OptionDef *po;
447
    int i;
448
449
713172
    for (i = 1; i < argc; i++) {
450
682666
        const char *cur_opt = argv[i];
451
452
682666
        if (*cur_opt++ != '-')
453
19278
            continue;
454
455
663388
        po = find_option(options, cur_opt);
456

663388
        if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
457
89750
            po = find_option(options, cur_opt + 2);
458
459

663388
        if ((!po->name && !strcmp(cur_opt, optname)) ||
460

663388
             (po->name && !strcmp(optname, po->name)))
461
14
            return i;
462
463

663374
        if (!po->name || po->flags & HAS_ARG)
464
546124
            i++;
465
    }
466
30506
    return 0;
467
}
468
469
static void dump_argument(const char *a)
470
{
471
    const unsigned char *p;
472
473
    for (p = a; *p; p++)
474
        if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
475
              *p == '_' || (*p >= 'a' && *p <= 'z')))
476
            break;
477
    if (!*p) {
478
        fputs(a, report_file);
479
        return;
480
    }
481
    fputc('"', report_file);
482
    for (p = a; *p; p++) {
483
        if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
484
            fprintf(report_file, "\\%c", *p);
485
        else if (*p < ' ' || *p > '~')
486
            fprintf(report_file, "\\x%02x", *p);
487
        else
488
            fputc(*p, report_file);
489
    }
490
    fputc('"', report_file);
491
}
492
493
6104
static void check_options(const OptionDef *po)
494
{
495
1106268
    while (po->name) {
496
1100164
        if (po->flags & OPT_PERFILE)
497
192384
            av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
498
1100164
        po++;
499
    }
500
6104
}
501
502
6104
void parse_loglevel(int argc, char **argv, const OptionDef *options)
503
{
504
6104
    int idx = locate_option(argc, argv, options, "loglevel");
505
    const char *env;
506
507
6104
    check_options(options);
508
509
6104
    if (!idx)
510
6104
        idx = locate_option(argc, argv, options, "v");
511

6104
    if (idx && argv[idx + 1])
512
14
        opt_loglevel(NULL, "loglevel", argv[idx + 1]);
513
6104
    idx = locate_option(argc, argv, options, "report");
514

6104
    if ((env = getenv("FFREPORT")) || idx) {
515
        init_report(env);
516
        if (report_file) {
517
            int i;
518
            fprintf(report_file, "Command line:\n");
519
            for (i = 0; i < argc; i++) {
520
                dump_argument(argv[i]);
521
                fputc(i < argc - 1 ? ' ' : '\n', report_file);
522
            }
523
            fflush(report_file);
524
        }
525
    }
526
6104
    idx = locate_option(argc, argv, options, "hide_banner");
527
6104
    if (idx)
528
        hide_banner = 1;
529
6104
}
530
531
291338
static const AVOption *opt_find(void *obj, const char *name, const char *unit,
532
                            int opt_flags, int search_flags)
533
{
534
291338
    const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
535

291338
    if(o && !o->flags)
536
2
        return NULL;
537
291336
    return o;
538
}
539
540
#define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
541
78239
int opt_default(void *optctx, const char *opt, const char *arg)
542
{
543
    const AVOption *o;
544
78239
    int consumed = 0;
545
    char opt_stripped[128];
546
    const char *p;
547
78239
    const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
548
#if CONFIG_AVRESAMPLE
549
78239
    const AVClass *rc = avresample_get_class();
550
#endif
551
#if CONFIG_SWSCALE
552
78239
    const AVClass *sc = sws_get_class();
553
#endif
554
#if CONFIG_SWRESAMPLE
555
78239
    const AVClass *swr_class = swr_get_class();
556
#endif
557
558

78239
    if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
559
        av_log_set_level(AV_LOG_DEBUG);
560
561
78239
    if (!(p = strchr(opt, ':')))
562
78231
        p = opt + strlen(opt);
563
78239
    av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
564
565
78239
    if ((o = opt_find(&cc, opt_stripped, NULL, 0,
566
38562
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
567


48943
        ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
568
10381
         (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
569

39678
        av_dict_set(&codec_opts, opt, arg, FLAGS);
570
39678
        consumed = 1;
571
    }
572
78239
    if ((o = opt_find(&fc, opt, NULL, 0,
573
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
574

10336
        av_dict_set(&format_opts, opt, arg, FLAGS);
575
10336
        if (consumed)
576
70
            av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
577
10336
        consumed = 1;
578
    }
579
#if CONFIG_SWSCALE
580

78239
    if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
581
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
582
10350
        struct SwsContext *sws = sws_alloc_context();
583
10350
        int ret = av_opt_set(sws, opt, arg, 0);
584
10350
        sws_freeContext(sws);
585

10350
        if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
586

10350
            !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
587

10350
            !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
588
            av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
589
            return AVERROR(EINVAL);
590
        }
591
10350
        if (ret < 0) {
592
            av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
593
            return ret;
594
        }
595
596

10350
        av_dict_set(&sws_dict, opt, arg, FLAGS);
597
598
10350
        consumed = 1;
599
    }
600
#else
601
    if (!consumed && !strcmp(opt, "sws_flags")) {
602
        av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
603
        consumed = 1;
604
    }
605
#endif
606
#if CONFIG_SWRESAMPLE
607

78239
    if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
608
                                    AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
609
        struct SwrContext *swr = swr_alloc();
610
        int ret = av_opt_set(swr, opt, arg, 0);
611
        swr_free(&swr);
612
        if (ret < 0) {
613
            av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
614
            return ret;
615
        }
616
        av_dict_set(&swr_opts, opt, arg, FLAGS);
617
        consumed = 1;
618
    }
619
#endif
620
#if CONFIG_AVRESAMPLE
621
78239
    if ((o=opt_find(&rc, opt, NULL, 0,
622
                       AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
623

6
        av_dict_set(&resample_opts, opt, arg, FLAGS);
624
6
        consumed = 1;
625
    }
626
#endif
627
628
78239
    if (consumed)
629
60294
        return 0;
630
17945
    return AVERROR_OPTION_NOT_FOUND;
631
}
632
633
/*
634
 * Check whether given option is a group separator.
635
 *
636
 * @return index of the group definition that matched or -1 if none
637
 */
638
130142
static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
639
                                 const char *opt)
640
{
641
    int i;
642
643
384387
    for (i = 0; i < nb_groups; i++) {
644
260284
        const OptionGroupDef *p = &groups[i];
645

260284
        if (p->sep && !strcmp(p->sep, opt))
646
6039
            return i;
647
    }
648
649
124103
    return -1;
650
}
651
652
/*
653
 * Finish parsing an option group.
654
 *
655
 * @param group_idx which group definition should this group belong to
656
 * @param arg argument of the group delimiting option
657
 */
658
12051
static void finish_group(OptionParseContext *octx, int group_idx,
659
                         const char *arg)
660
{
661
12051
    OptionGroupList *l = &octx->groups[group_idx];
662
    OptionGroup *g;
663
664
12051
    GROW_ARRAY(l->groups, l->nb_groups);
665
12051
    g = &l->groups[l->nb_groups - 1];
666
667
12051
    *g             = octx->cur_group;
668
12051
    g->arg         = arg;
669
12051
    g->group_def   = l->group_def;
670
12051
    g->sws_dict    = sws_dict;
671
12051
    g->swr_opts    = swr_opts;
672
12051
    g->codec_opts  = codec_opts;
673
12051
    g->format_opts = format_opts;
674
12051
    g->resample_opts = resample_opts;
675
676
12051
    codec_opts  = NULL;
677
12051
    format_opts = NULL;
678
12051
    resample_opts = NULL;
679
12051
    sws_dict    = NULL;
680
12051
    swr_opts    = NULL;
681
12051
    init_opts();
682
683
12051
    memset(&octx->cur_group, 0, sizeof(octx->cur_group));
684
12051
}
685
686
/*
687
 * Add an option instance to currently parsed group.
688
 */
689
63817
static void add_opt(OptionParseContext *octx, const OptionDef *opt,
690
                    const char *key, const char *val)
691
{
692
63817
    int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
693
63817
    OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
694
695
63817
    GROW_ARRAY(g->opts, g->nb_opts);
696
63817
    g->opts[g->nb_opts - 1].opt = opt;
697
63817
    g->opts[g->nb_opts - 1].key = key;
698
63817
    g->opts[g->nb_opts - 1].val = val;
699
63817
}
700
701
6012
static void init_parse_context(OptionParseContext *octx,
702
                               const OptionGroupDef *groups, int nb_groups)
703
{
704
    static const OptionGroupDef global_group = { "global" };
705
    int i;
706
707
6012
    memset(octx, 0, sizeof(*octx));
708
709
6012
    octx->nb_groups = nb_groups;
710
6012
    octx->groups    = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
711
6012
    if (!octx->groups)
712
        exit_program(1);
713
714
18036
    for (i = 0; i < octx->nb_groups; i++)
715
12024
        octx->groups[i].group_def = &groups[i];
716
717
6012
    octx->global_opts.group_def = &global_group;
718
6012
    octx->global_opts.arg       = "";
719
720
6012
    init_opts();
721
6012
}
722
723
6010
void uninit_parse_context(OptionParseContext *octx)
724
{
725
    int i, j;
726
727
18030
    for (i = 0; i < octx->nb_groups; i++) {
728
12020
        OptionGroupList *l = &octx->groups[i];
729
730
24069
        for (j = 0; j < l->nb_groups; j++) {
731
12049
            av_freep(&l->groups[j].opts);
732
12049
            av_dict_free(&l->groups[j].codec_opts);
733
12049
            av_dict_free(&l->groups[j].format_opts);
734
12049
            av_dict_free(&l->groups[j].resample_opts);
735
736
12049
            av_dict_free(&l->groups[j].sws_dict);
737
12049
            av_dict_free(&l->groups[j].swr_opts);
738
        }
739
12020
        av_freep(&l->groups);
740
    }
741
6010
    av_freep(&octx->groups);
742
743
6010
    av_freep(&octx->cur_group.opts);
744
6010
    av_freep(&octx->global_opts.opts);
745
746
6010
    uninit_opts();
747
6010
}
748
749
6012
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
750
                      const OptionDef *options,
751
                      const OptionGroupDef *groups, int nb_groups)
752
{
753
6012
    int optindex = 1;
754
6012
    int dashdash = -2;
755
756
    /* perform system-dependent conversions for arguments list */
757
6012
    prepare_app_arguments(&argc, &argv);
758
759
6012
    init_parse_context(octx, groups, nb_groups);
760
6012
    av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
761
762
142166
    while (optindex < argc) {
763
136154
        const char *opt = argv[optindex++], *arg;
764
        const OptionDef *po;
765
        int ret;
766
767
136154
        av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
768
769

136154
        if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
770
            dashdash = optindex;
771
            continue;
772
        }
773
        /* unnamed group separators, e.g. output filename */
774

136154
        if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
775
6012
            finish_group(octx, 0, opt);
776
6012
            av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
777
6012
            continue;
778
        }
779
130142
        opt++;
780
781
#define GET_ARG(arg)                                                           \
782
do {                                                                           \
783
    arg = argv[optindex++];                                                    \
784
    if (!arg) {                                                                \
785
        av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
786
        return AVERROR(EINVAL);                                                \
787
    }                                                                          \
788
} while (0)
789
790
        /* named group separators, e.g. -i */
791
130142
        if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
792
6039
            GET_ARG(arg);
793
6039
            finish_group(octx, ret, arg);
794
6039
            av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
795
6039
                   groups[ret].name, arg);
796
6039
            continue;
797
        }
798
799
        /* normal options */
800
124103
        po = find_option(options, opt);
801
124103
        if (po->name) {
802
45872
            if (po->flags & OPT_EXIT) {
803
                /* optional argument, e.g. -h */
804
1
                arg = argv[optindex++];
805
45871
            } else if (po->flags & HAS_ARG) {
806
40486
                GET_ARG(arg);
807
            } else {
808
5385
                arg = "1";
809
            }
810
811
45872
            add_opt(octx, po, opt, arg);
812
45872
            av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
813
                   "argument '%s'.\n", po->name, po->help, arg);
814
45872
            continue;
815
        }
816
817
        /* AVOptions */
818
78231
        if (argv[optindex]) {
819
78231
            ret = opt_default(NULL, opt, argv[optindex]);
820
78231
            if (ret >= 0) {
821
60286
                av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
822
60286
                       "argument '%s'.\n", opt, argv[optindex]);
823
60286
                optindex++;
824
60286
                continue;
825
17945
            } else if (ret != AVERROR_OPTION_NOT_FOUND) {
826
                av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
827
                       "with argument '%s'.\n", opt, argv[optindex]);
828
                return ret;
829
            }
830
        }
831
832
        /* boolean -nofoo options */
833

35890
        if (opt[0] == 'n' && opt[1] == 'o' &&
834
17945
            (po = find_option(options, opt + 2)) &&
835

17945
            po->name && po->flags & OPT_BOOL) {
836
17945
            add_opt(octx, po, opt, "0");
837
17945
            av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
838
                   "argument 0.\n", po->name, po->help);
839
17945
            continue;
840
        }
841
842
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
843
        return AVERROR_OPTION_NOT_FOUND;
844
    }
845
846


6012
    if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
847
        av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
848
               "command: may be ignored.\n");
849
850
6012
    av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
851
852
6012
    return 0;
853
}
854
855
5980
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
856
{
857
    int ret;
858
5980
    unsigned flags = av_get_cpu_flags();
859
860
5980
    if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
861
        return ret;
862
863
5980
    av_force_cpu_flags(flags);
864
5980
    return 0;
865
}
866
867
28
int opt_loglevel(void *optctx, const char *opt, const char *arg)
868
{
869
28
    const struct { const char *name; int level; } log_levels[] = {
870
        { "quiet"  , AV_LOG_QUIET   },
871
        { "panic"  , AV_LOG_PANIC   },
872
        { "fatal"  , AV_LOG_FATAL   },
873
        { "error"  , AV_LOG_ERROR   },
874
        { "warning", AV_LOG_WARNING },
875
        { "info"   , AV_LOG_INFO    },
876
        { "verbose", AV_LOG_VERBOSE },
877
        { "debug"  , AV_LOG_DEBUG   },
878
        { "trace"  , AV_LOG_TRACE   },
879
    };
880
    const char *token;
881
    char *tail;
882
28
    int flags = av_log_get_flags();
883
28
    int level = av_log_get_level();
884
28
    int cmd, i = 0;
885
886
28
    av_assert0(arg);
887
28
    while (*arg) {
888
28
        token = arg;
889

28
        if (*token == '+' || *token == '-') {
890
            cmd = *token++;
891
        } else {
892
28
            cmd = 0;
893
        }
894

28
        if (!i && !cmd) {
895
28
            flags = 0;  /* missing relative prefix, build absolute value */
896
        }
897
28
        if (!strncmp(token, "repeat", 6)) {
898
            if (cmd == '-') {
899
                flags |= AV_LOG_SKIP_REPEATED;
900
            } else {
901
                flags &= ~AV_LOG_SKIP_REPEATED;
902
            }
903
            arg = token + 6;
904
28
        } else if (!strncmp(token, "level", 5)) {
905
            if (cmd == '-') {
906
                flags &= ~AV_LOG_PRINT_LEVEL;
907
            } else {
908
                flags |= AV_LOG_PRINT_LEVEL;
909
            }
910
            arg = token + 5;
911
        } else {
912
28
            break;
913
        }
914
        i++;
915
    }
916
28
    if (!*arg) {
917
        goto end;
918
28
    } else if (*arg == '+') {
919
        arg++;
920
28
    } else if (!i) {
921
28
        flags = av_log_get_flags();  /* level value without prefix, reset flags */
922
    }
923
924
268
    for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
925
244
        if (!strcmp(log_levels[i].name, arg)) {
926
4
            level = log_levels[i].level;
927
4
            goto end;
928
        }
929
    }
930
931
24
    level = strtol(arg, &tail, 10);
932
24
    if (*tail) {
933
        av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
934
               "Possible levels are numbers or:\n", arg);
935
        for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
936
            av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
937
        exit_program(1);
938
    }
939
940
24
end:
941
28
    av_log_set_flags(flags);
942
28
    av_log_set_level(level);
943
28
    return 0;
944
}
945
946
static void expand_filename_template(AVBPrint *bp, const char *template,
947
                                     struct tm *tm)
948
{
949
    int c;
950
951
    while ((c = *(template++))) {
952
        if (c == '%') {
953
            if (!(c = *(template++)))
954
                break;
955
            switch (c) {
956
            case 'p':
957
                av_bprintf(bp, "%s", program_name);
958
                break;
959
            case 't':
960
                av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
961
                           tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
962
                           tm->tm_hour, tm->tm_min, tm->tm_sec);
963
                break;
964
            case '%':
965
                av_bprint_chars(bp, c, 1);
966
                break;
967
            }
968
        } else {
969
            av_bprint_chars(bp, c, 1);
970
        }
971
    }
972
}
973
974
static int init_report(const char *env)
975
{
976
    char *filename_template = NULL;
977
    char *key, *val;
978
    int ret, count = 0;
979
    int prog_loglevel, envlevel = 0;
980
    time_t now;
981
    struct tm *tm;
982
    AVBPrint filename;
983
984
    if (report_file) /* already opened */
985
        return 0;
986
    time(&now);
987
    tm = localtime(&now);
988
989
    while (env && *env) {
990
        if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
991
            if (count)
992
                av_log(NULL, AV_LOG_ERROR,
993
                       "Failed to parse FFREPORT environment variable: %s\n",
994
                       av_err2str(ret));
995
            break;
996
        }
997
        if (*env)
998
            env++;
999
        count++;
1000
        if (!strcmp(key, "file")) {
1001
            av_free(filename_template);
1002
            filename_template = val;
1003
            val = NULL;
1004
        } else if (!strcmp(key, "level")) {
1005
            char *tail;
1006
            report_file_level = strtol(val, &tail, 10);
1007
            if (*tail) {
1008
                av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1009
                exit_program(1);
1010
            }
1011
            envlevel = 1;
1012
        } else {
1013
            av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1014
        }
1015
        av_free(val);
1016
        av_free(key);
1017
    }
1018
1019
    av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
1020
    expand_filename_template(&filename,
1021
                             av_x_if_null(filename_template, "%p-%t.log"), tm);
1022
    av_free(filename_template);
1023
    if (!av_bprint_is_complete(&filename)) {
1024
        av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1025
        return AVERROR(ENOMEM);
1026
    }
1027
1028
    prog_loglevel = av_log_get_level();
1029
    if (!envlevel)
1030
        report_file_level = FFMAX(report_file_level, prog_loglevel);
1031
1032
    report_file = fopen(filename.str, "w");
1033
    if (!report_file) {
1034
        int ret = AVERROR(errno);
1035
        av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1036
               filename.str, strerror(errno));
1037
        return ret;
1038
    }
1039
    av_log_set_callback(log_callback_report);
1040
    av_log(NULL, AV_LOG_INFO,
1041
           "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1042
           "Report written to \"%s\"\n"
1043
           "Log level: %d\n",
1044
           program_name,
1045
           tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1046
           tm->tm_hour, tm->tm_min, tm->tm_sec,
1047
           filename.str, report_file_level);
1048
    av_bprint_finalize(&filename, NULL);
1049
    return 0;
1050
}
1051
1052
int opt_report(void *optctx, const char *opt, const char *arg)
1053
{
1054
    return init_report(NULL);
1055
}
1056
1057
int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1058
{
1059
    char *tail;
1060
    size_t max;
1061
1062
    max = strtol(arg, &tail, 10);
1063
    if (*tail) {
1064
        av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1065
        exit_program(1);
1066
    }
1067
    av_max_alloc(max);
1068
    return 0;
1069
}
1070
1071
int opt_timelimit(void *optctx, const char *opt, const char *arg)
1072
{
1073
#if HAVE_SETRLIMIT
1074
    int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1075
    struct rlimit rl = { lim, lim + 1 };
1076
    if (setrlimit(RLIMIT_CPU, &rl))
1077
        perror("setrlimit");
1078
#else
1079
    av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1080
#endif
1081
    return 0;
1082
}
1083
1084
69
void print_error(const char *filename, int err)
1085
{
1086
    char errbuf[128];
1087
69
    const char *errbuf_ptr = errbuf;
1088
1089
69
    if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1090
        errbuf_ptr = strerror(AVUNERROR(err));
1091
69
    av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1092
69
}
1093
1094
static int warned_cfg = 0;
1095
1096
#define INDENT        1
1097
#define SHOW_VERSION  2
1098
#define SHOW_CONFIG   4
1099
#define SHOW_COPYRIGHT 8
1100
1101
#define PRINT_LIB_INFO(libname, LIBNAME, flags, level)                  \
1102
    if (CONFIG_##LIBNAME) {                                             \
1103
        const char *indent = flags & INDENT? "  " : "";                 \
1104
        if (flags & SHOW_VERSION) {                                     \
1105
            unsigned int version = libname##_version();                 \
1106
            av_log(NULL, level,                                         \
1107
                   "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n",            \
1108
                   indent, #libname,                                    \
1109
                   LIB##LIBNAME##_VERSION_MAJOR,                        \
1110
                   LIB##LIBNAME##_VERSION_MINOR,                        \
1111
                   LIB##LIBNAME##_VERSION_MICRO,                        \
1112
                   AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1113
                   AV_VERSION_MICRO(version));                          \
1114
        }                                                               \
1115
        if (flags & SHOW_CONFIG) {                                      \
1116
            const char *cfg = libname##_configuration();                \
1117
            if (strcmp(FFMPEG_CONFIGURATION, cfg)) {                    \
1118
                if (!warned_cfg) {                                      \
1119
                    av_log(NULL, level,                                 \
1120
                            "%sWARNING: library configuration mismatch\n", \
1121
                            indent);                                    \
1122
                    warned_cfg = 1;                                     \
1123
                }                                                       \
1124
                av_log(NULL, level, "%s%-11s configuration: %s\n",      \
1125
                        indent, #libname, cfg);                         \
1126
            }                                                           \
1127
        }                                                               \
1128
    }                                                                   \
1129
1130
12208
static void print_all_libs_info(int flags, int level)
1131
{
1132


12208
    PRINT_LIB_INFO(avutil,     AVUTIL,     flags, level);
1133


12208
    PRINT_LIB_INFO(avcodec,    AVCODEC,    flags, level);
1134


12208
    PRINT_LIB_INFO(avformat,   AVFORMAT,   flags, level);
1135


12208
    PRINT_LIB_INFO(avdevice,   AVDEVICE,   flags, level);
1136


12208
    PRINT_LIB_INFO(avfilter,   AVFILTER,   flags, level);
1137


12208
    PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1138


12208
    PRINT_LIB_INFO(swscale,    SWSCALE,    flags, level);
1139


12208
    PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1140


12208
    PRINT_LIB_INFO(postproc,   POSTPROC,   flags, level);
1141
12208
}
1142
1143
6104
static void print_program_info(int flags, int level)
1144
{
1145
6104
    const char *indent = flags & INDENT? "  " : "";
1146
1147
6104
    av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1148
6104
    if (flags & SHOW_COPYRIGHT)
1149
6104
        av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1150
               program_birth_year, CONFIG_THIS_YEAR);
1151
6104
    av_log(NULL, level, "\n");
1152
6104
    av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1153
1154
6104
    av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1155
6104
}
1156
1157
static void print_buildconf(int flags, int level)
1158
{
1159
    const char *indent = flags & INDENT ? "  " : "";
1160
    char str[] = { FFMPEG_CONFIGURATION };
1161
    char *conflist, *remove_tilde, *splitconf;
1162
1163
    // Change all the ' --' strings to '~--' so that
1164
    // they can be identified as tokens.
1165
    while ((conflist = strstr(str, " --")) != NULL) {
1166
        conflist[0] = '~';
1167
    }
1168
1169
    // Compensate for the weirdness this would cause
1170
    // when passing 'pkg-config --static'.
1171
    while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1172
        remove_tilde[sizeof("pkg-config~") - 2] = ' ';
1173
    }
1174
1175
    splitconf = strtok(str, "~");
1176
    av_log(NULL, level, "\n%sconfiguration:\n", indent);
1177
    while (splitconf != NULL) {
1178
        av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1179
        splitconf = strtok(NULL, "~");
1180
    }
1181
}
1182
1183
6104
void show_banner(int argc, char **argv, const OptionDef *options)
1184
{
1185
6104
    int idx = locate_option(argc, argv, options, "version");
1186

6104
    if (hide_banner || idx)
1187
        return;
1188
1189
6104
    print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1190
6104
    print_all_libs_info(INDENT|SHOW_CONFIG,  AV_LOG_INFO);
1191
6104
    print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1192
}
1193
1194
int show_version(void *optctx, const char *opt, const char *arg)
1195
{
1196
    av_log_set_callback(log_callback_help);
1197
    print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1198
    print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1199
1200
    return 0;
1201
}
1202
1203
int show_buildconf(void *optctx, const char *opt, const char *arg)
1204
{
1205
    av_log_set_callback(log_callback_help);
1206
    print_buildconf      (INDENT|0, AV_LOG_INFO);
1207
1208
    return 0;
1209
}
1210
1211
int show_license(void *optctx, const char *opt, const char *arg)
1212
{
1213
#if CONFIG_NONFREE
1214
    printf(
1215
    "This version of %s has nonfree parts compiled in.\n"
1216
    "Therefore it is not legally redistributable.\n",
1217
    program_name );
1218
#elif CONFIG_GPLV3
1219
    printf(
1220
    "%s is free software; you can redistribute it and/or modify\n"
1221
    "it under the terms of the GNU General Public License as published by\n"
1222
    "the Free Software Foundation; either version 3 of the License, or\n"
1223
    "(at your option) any later version.\n"
1224
    "\n"
1225
    "%s is distributed in the hope that it will be useful,\n"
1226
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1227
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1228
    "GNU General Public License for more details.\n"
1229
    "\n"
1230
    "You should have received a copy of the GNU General Public License\n"
1231
    "along with %s.  If not, see <http://www.gnu.org/licenses/>.\n",
1232
    program_name, program_name, program_name );
1233
#elif CONFIG_GPL
1234
    printf(
1235
    "%s is free software; you can redistribute it and/or modify\n"
1236
    "it under the terms of the GNU General Public License as published by\n"
1237
    "the Free Software Foundation; either version 2 of the License, or\n"
1238
    "(at your option) any later version.\n"
1239
    "\n"
1240
    "%s is distributed in the hope that it will be useful,\n"
1241
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1242
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1243
    "GNU General Public License for more details.\n"
1244
    "\n"
1245
    "You should have received a copy of the GNU General Public License\n"
1246
    "along with %s; if not, write to the Free Software\n"
1247
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1248
    program_name, program_name, program_name );
1249
#elif CONFIG_LGPLV3
1250
    printf(
1251
    "%s is free software; you can redistribute it and/or modify\n"
1252
    "it under the terms of the GNU Lesser General Public License as published by\n"
1253
    "the Free Software Foundation; either version 3 of the License, or\n"
1254
    "(at your option) any later version.\n"
1255
    "\n"
1256
    "%s is distributed in the hope that it will be useful,\n"
1257
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1258
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1259
    "GNU Lesser General Public License for more details.\n"
1260
    "\n"
1261
    "You should have received a copy of the GNU Lesser General Public License\n"
1262
    "along with %s.  If not, see <http://www.gnu.org/licenses/>.\n",
1263
    program_name, program_name, program_name );
1264
#else
1265
    printf(
1266
    "%s is free software; you can redistribute it and/or\n"
1267
    "modify it under the terms of the GNU Lesser General Public\n"
1268
    "License as published by the Free Software Foundation; either\n"
1269
    "version 2.1 of the License, or (at your option) any later version.\n"
1270
    "\n"
1271
    "%s is distributed in the hope that it will be useful,\n"
1272
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1273
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
1274
    "Lesser General Public License for more details.\n"
1275
    "\n"
1276
    "You should have received a copy of the GNU Lesser General Public\n"
1277
    "License along with %s; if not, write to the Free Software\n"
1278
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1279
    program_name, program_name, program_name );
1280
#endif
1281
1282
    return 0;
1283
}
1284
1285
static int is_device(const AVClass *avclass)
1286
{
1287
    if (!avclass)
1288
        return 0;
1289
    return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1290
}
1291
1292
static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
1293
{
1294
    void *ifmt_opaque = NULL;
1295
    const AVInputFormat *ifmt  = NULL;
1296
    void *ofmt_opaque = NULL;
1297
    const AVOutputFormat *ofmt = NULL;
1298
    const char *last_name;
1299
    int is_dev;
1300
1301
    printf("%s\n"
1302
           " D. = Demuxing supported\n"
1303
           " .E = Muxing supported\n"
1304
           " --\n", device_only ? "Devices:" : "File formats:");
1305
    last_name = "000";
1306
    for (;;) {
1307
        int decode = 0;
1308
        int encode = 0;
1309
        const char *name      = NULL;
1310
        const char *long_name = NULL;
1311
1312
        if (muxdemuxers !=SHOW_DEMUXERS) {
1313
            ofmt_opaque = NULL;
1314
            while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
1315
                is_dev = is_device(ofmt->priv_class);
1316
                if (!is_dev && device_only)
1317
                    continue;
1318
                if ((!name || strcmp(ofmt->name, name) < 0) &&
1319
                    strcmp(ofmt->name, last_name) > 0) {
1320
                    name      = ofmt->name;
1321
                    long_name = ofmt->long_name;
1322
                    encode    = 1;
1323
                }
1324
            }
1325
        }
1326
        if (muxdemuxers != SHOW_MUXERS) {
1327
            ifmt_opaque = NULL;
1328
            while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
1329
                is_dev = is_device(ifmt->priv_class);
1330
                if (!is_dev && device_only)
1331
                    continue;
1332
                if ((!name || strcmp(ifmt->name, name) < 0) &&
1333
                    strcmp(ifmt->name, last_name) > 0) {
1334
                    name      = ifmt->name;
1335
                    long_name = ifmt->long_name;
1336
                    encode    = 0;
1337
                }
1338
                if (name && strcmp(ifmt->name, name) == 0)
1339
                    decode = 1;
1340
            }
1341
        }
1342
        if (!name)
1343
            break;
1344
        last_name = name;
1345
1346
        printf(" %s%s %-15s %s\n",
1347
               decode ? "D" : " ",
1348
               encode ? "E" : " ",
1349
               name,
1350
            long_name ? long_name:" ");
1351
    }
1352
    return 0;
1353
}
1354
1355
int show_formats(void *optctx, const char *opt, const char *arg)
1356
{
1357
    return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
1358
}
1359
1360
int show_muxers(void *optctx, const char *opt, const char *arg)
1361
{
1362
    return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
1363
}
1364
1365
int show_demuxers(void *optctx, const char *opt, const char *arg)
1366
{
1367
    return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
1368
}
1369
1370
int show_devices(void *optctx, const char *opt, const char *arg)
1371
{
1372
    return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
1373
}
1374
1375
#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1376
    if (codec->field) {                                                      \
1377
        const type *p = codec->field;                                        \
1378
                                                                             \
1379
        printf("    Supported " list_name ":");                              \
1380
        while (*p != term) {                                                 \
1381
            get_name(*p);                                                    \
1382
            printf(" %s", name);                                             \
1383
            p++;                                                             \
1384
        }                                                                    \
1385
        printf("\n");                                                        \
1386
    }                                                                        \
1387
1388
static void print_codec(const AVCodec *c)
1389
{
1390
    int encoder = av_codec_is_encoder(c);
1391
1392
    printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1393
           c->long_name ? c->long_name : "");
1394
1395
    printf("    General capabilities: ");
1396
    if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1397
        printf("horizband ");
1398
    if (c->capabilities & AV_CODEC_CAP_DR1)
1399
        printf("dr1 ");
1400
    if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1401
        printf("trunc ");
1402
    if (c->capabilities & AV_CODEC_CAP_DELAY)
1403
        printf("delay ");
1404
    if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1405
        printf("small ");
1406
    if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1407
        printf("subframes ");
1408
    if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1409
        printf("exp ");
1410
    if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1411
        printf("chconf ");
1412
    if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1413
        printf("paramchange ");
1414
    if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1415
        printf("variable ");
1416
    if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1417
                           AV_CODEC_CAP_SLICE_THREADS |
1418
                           AV_CODEC_CAP_OTHER_THREADS))
1419
        printf("threads ");
1420
    if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
1421
        printf("avoidprobe ");
1422
    if (c->capabilities & AV_CODEC_CAP_HARDWARE)
1423
        printf("hardware ");
1424
    if (c->capabilities & AV_CODEC_CAP_HYBRID)
1425
        printf("hybrid ");
1426
    if (!c->capabilities)
1427
        printf("none");
1428
    printf("\n");
1429
1430
    if (c->type == AVMEDIA_TYPE_VIDEO ||
1431
        c->type == AVMEDIA_TYPE_AUDIO) {
1432
        printf("    Threading capabilities: ");
1433
        switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1434
                                   AV_CODEC_CAP_SLICE_THREADS |
1435
                                   AV_CODEC_CAP_OTHER_THREADS)) {
1436
        case AV_CODEC_CAP_FRAME_THREADS |
1437
             AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1438
        case AV_CODEC_CAP_FRAME_THREADS: printf("frame");           break;
1439
        case AV_CODEC_CAP_SLICE_THREADS: printf("slice");           break;
1440
        case AV_CODEC_CAP_OTHER_THREADS: printf("other");           break;
1441
        default:                         printf("none");            break;
1442
        }
1443
        printf("\n");
1444
    }
1445
1446
    if (avcodec_get_hw_config(c, 0)) {
1447
        printf("    Supported hardware devices: ");
1448
        for (int i = 0;; i++) {
1449
            const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
1450
            if (!config)
1451
                break;
1452
            printf("%s ", av_hwdevice_get_type_name(config->device_type));
1453
        }
1454
        printf("\n");
1455
    }
1456
1457
    if (c->supported_framerates) {
1458
        const AVRational *fps = c->supported_framerates;
1459
1460
        printf("    Supported framerates:");
1461
        while (fps->num) {
1462
            printf(" %d/%d", fps->num, fps->den);
1463
            fps++;
1464
        }
1465
        printf("\n");
1466
    }
1467
    PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1468
                          AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1469
    PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1470
                          GET_SAMPLE_RATE_NAME);
1471
    PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1472
                          AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1473
    PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1474
                          0, GET_CH_LAYOUT_DESC);
1475
1476
    if (c->priv_class) {
1477
        show_help_children(c->priv_class,
1478
                           AV_OPT_FLAG_ENCODING_PARAM |
1479
                           AV_OPT_FLAG_DECODING_PARAM);
1480
    }
1481
}
1482
1483
static char get_media_type_char(enum AVMediaType type)
1484
{
1485
    switch (type) {
1486
        case AVMEDIA_TYPE_VIDEO:    return 'V';
1487
        case AVMEDIA_TYPE_AUDIO:    return 'A';
1488
        case AVMEDIA_TYPE_DATA:     return 'D';
1489
        case AVMEDIA_TYPE_SUBTITLE: return 'S';
1490
        case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1491
        default:                    return '?';
1492
    }
1493
}
1494
1495
static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter,
1496
                                        int encoder)
1497
{
1498
    const AVCodec *c;
1499
    while ((c = av_codec_iterate(iter))) {
1500
        if (c->id == id &&
1501
            (encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c)))
1502
            return c;
1503
    }
1504
    return NULL;
1505
}
1506
1507
static int compare_codec_desc(const void *a, const void *b)
1508
{
1509
    const AVCodecDescriptor * const *da = a;
1510
    const AVCodecDescriptor * const *db = b;
1511
1512
    return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1513
           strcmp((*da)->name, (*db)->name);
1514
}
1515
1516
static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1517
{
1518
    const AVCodecDescriptor *desc = NULL;
1519
    const AVCodecDescriptor **codecs;
1520
    unsigned nb_codecs = 0, i = 0;
1521
1522
    while ((desc = avcodec_descriptor_next(desc)))
1523
        nb_codecs++;
1524
    if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1525
        av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1526
        exit_program(1);
1527
    }
1528
    desc = NULL;
1529
    while ((desc = avcodec_descriptor_next(desc)))
1530
        codecs[i++] = desc;
1531
    av_assert0(i == nb_codecs);
1532
    qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1533
    *rcodecs = codecs;
1534
    return nb_codecs;
1535
}
1536
1537
static void print_codecs_for_id(enum AVCodecID id, int encoder)
1538
{
1539
    void *iter = NULL;
1540
    const AVCodec *codec;
1541
1542
    printf(" (%s: ", encoder ? "encoders" : "decoders");
1543
1544
    while ((codec = next_codec_for_id(id, &iter, encoder)))
1545
        printf("%s ", codec->name);
1546
1547
    printf(")");
1548
}
1549
1550
int show_codecs(void *optctx, const char *opt, const char *arg)
1551
{
1552
    const AVCodecDescriptor **codecs;
1553
    unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1554
1555
    printf("Codecs:\n"
1556
           " D..... = Decoding supported\n"
1557
           " .E.... = Encoding supported\n"
1558
           " ..V... = Video codec\n"
1559
           " ..A... = Audio codec\n"
1560
           " ..S... = Subtitle codec\n"
1561
           " ...I.. = Intra frame-only codec\n"
1562
           " ....L. = Lossy compression\n"
1563
           " .....S = Lossless compression\n"
1564
           " -------\n");
1565
    for (i = 0; i < nb_codecs; i++) {
1566
        const AVCodecDescriptor *desc = codecs[i];
1567
        const AVCodec *codec;
1568
        void *iter = NULL;
1569
1570
        if (strstr(desc->name, "_deprecated"))
1571
            continue;
1572
1573
        printf(" ");
1574
        printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1575
        printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1576
1577
        printf("%c", get_media_type_char(desc->type));
1578
        printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1579
        printf((desc->props & AV_CODEC_PROP_LOSSY)      ? "L" : ".");
1580
        printf((desc->props & AV_CODEC_PROP_LOSSLESS)   ? "S" : ".");
1581
1582
        printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1583
1584
        /* print decoders/encoders when there's more than one or their
1585
         * names are different from codec name */
1586
        while ((codec = next_codec_for_id(desc->id, &iter, 0))) {
1587
            if (strcmp(codec->name, desc->name)) {
1588
                print_codecs_for_id(desc->id, 0);
1589
                break;
1590
            }
1591
        }
1592
        iter = NULL;
1593
        while ((codec = next_codec_for_id(desc->id, &iter, 1))) {
1594
            if (strcmp(codec->name, desc->name)) {
1595
                print_codecs_for_id(desc->id, 1);
1596
                break;
1597
            }
1598
        }
1599
1600
        printf("\n");
1601
    }
1602
    av_free(codecs);
1603
    return 0;
1604
}
1605
1606
static void print_codecs(int encoder)
1607
{
1608
    const AVCodecDescriptor **codecs;
1609
    unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1610
1611
    printf("%s:\n"
1612
           " V..... = Video\n"
1613
           " A..... = Audio\n"
1614
           " S..... = Subtitle\n"
1615
           " .F.... = Frame-level multithreading\n"
1616
           " ..S... = Slice-level multithreading\n"
1617
           " ...X.. = Codec is experimental\n"
1618
           " ....B. = Supports draw_horiz_band\n"
1619
           " .....D = Supports direct rendering method 1\n"
1620
           " ------\n",
1621
           encoder ? "Encoders" : "Decoders");
1622
    for (i = 0; i < nb_codecs; i++) {
1623
        const AVCodecDescriptor *desc = codecs[i];
1624
        const AVCodec *codec;
1625
        void *iter = NULL;
1626
1627
        while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
1628
            printf(" %c", get_media_type_char(desc->type));
1629
            printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1630
            printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1631
            printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL)  ? "X" : ".");
1632
            printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1633
            printf((codec->capabilities & AV_CODEC_CAP_DR1)           ? "D" : ".");
1634
1635
            printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1636
            if (strcmp(codec->name, desc->name))
1637
                printf(" (codec %s)", desc->name);
1638
1639
            printf("\n");
1640
        }
1641
    }
1642
    av_free(codecs);
1643
}
1644
1645
int show_decoders(void *optctx, const char *opt, const char *arg)
1646
{
1647
    print_codecs(0);
1648
    return 0;
1649
}
1650
1651
int show_encoders(void *optctx, const char *opt, const char *arg)
1652
{
1653
    print_codecs(1);
1654
    return 0;
1655
}
1656
1657
int show_bsfs(void *optctx, const char *opt, const char *arg)
1658
{
1659
    const AVBitStreamFilter *bsf = NULL;
1660
    void *opaque = NULL;
1661
1662
    printf("Bitstream filters:\n");
1663
    while ((bsf = av_bsf_iterate(&opaque)))
1664
        printf("%s\n", bsf->name);
1665
    printf("\n");
1666
    return 0;
1667
}
1668
1669
int show_protocols(void *optctx, const char *opt, const char *arg)
1670
{
1671
    void *opaque = NULL;
1672
    const char *name;
1673
1674
    printf("Supported file protocols:\n"
1675
           "Input:\n");
1676
    while ((name = avio_enum_protocols(&opaque, 0)))
1677
        printf("  %s\n", name);
1678
    printf("Output:\n");
1679
    while ((name = avio_enum_protocols(&opaque, 1)))
1680
        printf("  %s\n", name);
1681
    return 0;
1682
}
1683
1684
int show_filters(void *optctx, const char *opt, const char *arg)
1685
{
1686
#if CONFIG_AVFILTER
1687
    const AVFilter *filter = NULL;
1688
    char descr[64], *descr_cur;
1689
    void *opaque = NULL;
1690
    int i, j;
1691
    const AVFilterPad *pad;
1692
1693
    printf("Filters:\n"
1694
           "  T.. = Timeline support\n"
1695
           "  .S. = Slice threading\n"
1696
           "  ..C = Command support\n"
1697
           "  A = Audio input/output\n"
1698
           "  V = Video input/output\n"
1699
           "  N = Dynamic number and/or type of input/output\n"
1700
           "  | = Source or sink filter\n");
1701
    while ((filter = av_filter_iterate(&opaque))) {
1702
        descr_cur = descr;
1703
        for (i = 0; i < 2; i++) {
1704
            if (i) {
1705
                *(descr_cur++) = '-';
1706
                *(descr_cur++) = '>';
1707
            }
1708
            pad = i ? filter->outputs : filter->inputs;
1709
            for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1710
                if (descr_cur >= descr + sizeof(descr) - 4)
1711
                    break;
1712
                *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1713
            }
1714
            if (!j)
1715
                *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1716
                                  ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1717
        }
1718
        *descr_cur = 0;
1719
        printf(" %c%c%c %-17s %-10s %s\n",
1720
               filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1721
               filter->flags & AVFILTER_FLAG_SLICE_THREADS    ? 'S' : '.',
1722
               filter->process_command                        ? 'C' : '.',
1723
               filter->name, descr, filter->description);
1724
    }
1725
#else
1726
    printf("No filters available: libavfilter disabled\n");
1727
#endif
1728
    return 0;
1729
}
1730
1731
int show_colors(void *optctx, const char *opt, const char *arg)
1732
{
1733
    const char *name;
1734
    const uint8_t *rgb;
1735
    int i;
1736
1737
    printf("%-32s #RRGGBB\n", "name");
1738
1739
    for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1740
        printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1741
1742
    return 0;
1743
}
1744
1745
1
int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1746
{
1747
1
    const AVPixFmtDescriptor *pix_desc = NULL;
1748
1749
1
    printf("Pixel formats:\n"
1750
           "I.... = Supported Input  format for conversion\n"
1751
           ".O... = Supported Output format for conversion\n"
1752
           "..H.. = Hardware accelerated format\n"
1753
           "...P. = Paletted format\n"
1754
           "....B = Bitstream format\n"
1755
           "FLAGS NAME            NB_COMPONENTS BITS_PER_PIXEL\n"
1756
           "-----\n");
1757
1758
#if !CONFIG_SWSCALE
1759
#   define sws_isSupportedInput(x)  0
1760
#   define sws_isSupportedOutput(x) 0
1761
#endif
1762
1763
199
    while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1764
198
        enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1765

1188
        printf("%c%c%c%c%c %-16s       %d            %2d\n",
1766
198
               sws_isSupportedInput (pix_fmt)              ? 'I' : '.',
1767
198
               sws_isSupportedOutput(pix_fmt)              ? 'O' : '.',
1768
198
               pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL   ? 'H' : '.',
1769
198
               pix_desc->flags & AV_PIX_FMT_FLAG_PAL       ? 'P' : '.',
1770
198
               pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1771
               pix_desc->name,
1772
198
               pix_desc->nb_components,
1773
               av_get_bits_per_pixel(pix_desc));
1774
    }
1775
1
    return 0;
1776
}
1777
1778
int show_layouts(void *optctx, const char *opt, const char *arg)
1779
{
1780
    int i = 0;
1781
    uint64_t layout, j;
1782
    const char *name, *descr;
1783
1784
    printf("Individual channels:\n"
1785
           "NAME           DESCRIPTION\n");
1786
    for (i = 0; i < 63; i++) {
1787
        name = av_get_channel_name((uint64_t)1 << i);
1788
        if (!name)
1789
            continue;
1790
        descr = av_get_channel_description((uint64_t)1 << i);
1791
        printf("%-14s %s\n", name, descr);
1792
    }
1793
    printf("\nStandard channel layouts:\n"
1794
           "NAME           DECOMPOSITION\n");
1795
    for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1796
        if (name) {
1797
            printf("%-14s ", name);
1798
            for (j = 1; j; j <<= 1)
1799
                if ((layout & j))
1800
                    printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1801
            printf("\n");
1802
        }
1803
    }
1804
    return 0;
1805
}
1806
1807
int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1808
{
1809
    int i;
1810
    char fmt_str[128];
1811
    for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1812
        printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1813
    return 0;
1814
}
1815
1816
static void show_help_codec(const char *name, int encoder)
1817
{
1818
    const AVCodecDescriptor *desc;
1819
    const AVCodec *codec;
1820
1821
    if (!name) {
1822
        av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1823
        return;
1824
    }
1825
1826
    codec = encoder ? avcodec_find_encoder_by_name(name) :
1827
                      avcodec_find_decoder_by_name(name);
1828
1829
    if (codec)
1830
        print_codec(codec);
1831
    else if ((desc = avcodec_descriptor_get_by_name(name))) {
1832
        void *iter = NULL;
1833
        int printed = 0;
1834
1835
        while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
1836
            printed = 1;
1837
            print_codec(codec);
1838
        }
1839
1840
        if (!printed) {
1841
            av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1842
                   "but no %s for it are available. FFmpeg might need to be "
1843
                   "recompiled with additional external libraries.\n",
1844
                   name, encoder ? "encoders" : "decoders");
1845
        }
1846
    } else {
1847
        av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1848
               name);
1849
    }
1850
}
1851
1852
static void show_help_demuxer(const char *name)
1853
{
1854
    const AVInputFormat *fmt = av_find_input_format(name);
1855
1856
    if (!fmt) {
1857
        av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1858
        return;
1859
    }
1860
1861
    printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1862
1863
    if (fmt->extensions)
1864
        printf("    Common extensions: %s.\n", fmt->extensions);
1865
1866
    if (fmt->priv_class)
1867
        show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1868
}
1869
1870
static void show_help_protocol(const char *name)
1871
{
1872
    const AVClass *proto_class;
1873
1874
    if (!name) {
1875
        av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
1876
        return;
1877
    }
1878
1879
    proto_class = avio_protocol_get_class(name);
1880
    if (!proto_class) {
1881
        av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
1882
        return;
1883
    }
1884
1885
    show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
1886
}
1887
1888
static void show_help_muxer(const char *name)
1889
{
1890
    const AVCodecDescriptor *desc;
1891
    const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1892
1893
    if (!fmt) {
1894
        av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1895
        return;
1896
    }
1897
1898
    printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1899
1900
    if (fmt->extensions)
1901
        printf("    Common extensions: %s.\n", fmt->extensions);
1902
    if (fmt->mime_type)
1903
        printf("    Mime type: %s.\n", fmt->mime_type);
1904
    if (fmt->video_codec != AV_CODEC_ID_NONE &&
1905
        (desc = avcodec_descriptor_get(fmt->video_codec))) {
1906
        printf("    Default video codec: %s.\n", desc->name);
1907
    }
1908
    if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1909
        (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1910
        printf("    Default audio codec: %s.\n", desc->name);
1911
    }
1912
    if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1913
        (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1914
        printf("    Default subtitle codec: %s.\n", desc->name);
1915
    }
1916
1917
    if (fmt->priv_class)
1918
        show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1919
}
1920
1921
#if CONFIG_AVFILTER
1922
static void show_help_filter(const char *name)
1923
{
1924
#if CONFIG_AVFILTER
1925
    const AVFilter *f = avfilter_get_by_name(name);
1926
    int i, count;
1927
1928
    if (!name) {
1929
        av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1930
        return;
1931
    } else if (!f) {
1932
        av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1933
        return;
1934
    }
1935
1936
    printf("Filter %s\n", f->name);
1937
    if (f->description)
1938
        printf("  %s\n", f->description);
1939
1940
    if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1941
        printf("    slice threading supported\n");
1942
1943
    printf("    Inputs:\n");
1944
    count = avfilter_pad_count(f->inputs);
1945
    for (i = 0; i < count; i++) {
1946
        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1947
               media_type_string(avfilter_pad_get_type(f->inputs, i)));
1948
    }
1949
    if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1950
        printf("        dynamic (depending on the options)\n");
1951
    else if (!count)
1952
        printf("        none (source filter)\n");
1953
1954
    printf("    Outputs:\n");
1955
    count = avfilter_pad_count(f->outputs);
1956
    for (i = 0; i < count; i++) {
1957
        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1958
               media_type_string(avfilter_pad_get_type(f->outputs, i)));
1959
    }
1960
    if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1961
        printf("        dynamic (depending on the options)\n");
1962
    else if (!count)
1963
        printf("        none (sink filter)\n");
1964
1965
    if (f->priv_class)
1966
        show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1967
                                          AV_OPT_FLAG_AUDIO_PARAM);
1968
    if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1969
        printf("This filter has support for timeline through the 'enable' option.\n");
1970
#else
1971
    av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1972
           "can not to satisfy request\n");
1973
#endif
1974
}
1975
#endif
1976
1977
static void show_help_bsf(const char *name)
1978
{
1979
    const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
1980
1981
    if (!name) {
1982
        av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
1983
        return;
1984
    } else if (!bsf) {
1985
        av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
1986
        return;
1987
    }
1988
1989
    printf("Bit stream filter %s\n", bsf->name);
1990
    PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
1991
                          AV_CODEC_ID_NONE, GET_CODEC_NAME);
1992
    if (bsf->priv_class)
1993
        show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
1994
}
1995
1996
int show_help(void *optctx, const char *opt, const char *arg)
1997
{
1998
    char *topic, *par;
1999
    av_log_set_callback(log_callback_help);
2000
2001
    topic = av_strdup(arg ? arg : "");
2002
    if (!topic)
2003
        return AVERROR(ENOMEM);
2004
    par = strchr(topic, '=');
2005
    if (par)
2006
        *par++ = 0;
2007
2008
    if (!*topic) {
2009
        show_help_default(topic, par);
2010
    } else if (!strcmp(topic, "decoder")) {
2011
        show_help_codec(par, 0);
2012
    } else if (!strcmp(topic, "encoder")) {
2013
        show_help_codec(par, 1);
2014
    } else if (!strcmp(topic, "demuxer")) {
2015
        show_help_demuxer(par);
2016
    } else if (!strcmp(topic, "muxer")) {
2017
        show_help_muxer(par);
2018
    } else if (!strcmp(topic, "protocol")) {
2019
        show_help_protocol(par);
2020
#if CONFIG_AVFILTER
2021
    } else if (!strcmp(topic, "filter")) {
2022
        show_help_filter(par);
2023
#endif
2024
    } else if (!strcmp(topic, "bsf")) {
2025
        show_help_bsf(par);
2026
    } else {
2027
        show_help_default(topic, par);
2028
    }
2029
2030
    av_freep(&topic);
2031
    return 0;
2032
}
2033
2034
int read_yesno(void)
2035
{
2036
    int c = getchar();
2037
    int yesno = (av_toupper(c) == 'Y');
2038
2039
    while (c != '\n' && c != EOF)
2040
        c = getchar();
2041
2042
    return yesno;
2043
}
2044
2045
FILE *get_preset_file(char *filename, size_t filename_size,
2046
                      const char *preset_name, int is_path,
2047
                      const char *codec_name)
2048
{
2049
    FILE *f = NULL;
2050
    int i;
2051
    const char *base[3] = { getenv("FFMPEG_DATADIR"),
2052
                            getenv("HOME"),
2053
                            FFMPEG_DATADIR, };
2054
2055
    if (is_path) {
2056
        av_strlcpy(filename, preset_name, filename_size);
2057
        f = fopen(filename, "r");
2058
    } else {
2059
#if HAVE_GETMODULEHANDLE && defined(_WIN32)
2060
        char datadir[MAX_PATH], *ls;
2061
        base[2] = NULL;
2062
2063
        if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
2064
        {
2065
            for (ls = datadir; ls < datadir + strlen(datadir); ls++)
2066
                if (*ls == '\\') *ls = '/';
2067
2068
            if (ls = strrchr(datadir, '/'))
2069
            {
2070
                *ls = 0;
2071
                strncat(datadir, "/ffpresets",  sizeof(datadir) - 1 - strlen(datadir));
2072
                base[2] = datadir;
2073
            }
2074
        }
2075
#endif
2076
        for (i = 0; i < 3 && !f; i++) {
2077
            if (!base[i])
2078
                continue;
2079
            snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
2080
                     i != 1 ? "" : "/.ffmpeg", preset_name);
2081
            f = fopen(filename, "r");
2082
            if (!f && codec_name) {
2083
                snprintf(filename, filename_size,
2084
                         "%s%s/%s-%s.ffpreset",
2085
                         base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
2086
                         preset_name);
2087
                f = fopen(filename, "r");
2088
            }
2089
        }
2090
    }
2091
2092
    return f;
2093
}
2094
2095
25719
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
2096
{
2097
25719
    int ret = avformat_match_stream_specifier(s, st, spec);
2098
25719
    if (ret < 0)
2099
        av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
2100
25719
    return ret;
2101
}
2102
2103
19201
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
2104
                                AVFormatContext *s, AVStream *st, const AVCodec *codec)
2105
{
2106
19201
    AVDictionary    *ret = NULL;
2107
19201
    AVDictionaryEntry *t = NULL;
2108
38402
    int            flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
2109
19201
                                      : AV_OPT_FLAG_DECODING_PARAM;
2110
19201
    char          prefix = 0;
2111
19201
    const AVClass    *cc = avcodec_get_class();
2112
2113
19201
    if (!codec)
2114
13359
        codec            = s->oformat ? avcodec_find_encoder(codec_id)
2115
6506
                                      : avcodec_find_decoder(codec_id);
2116
2117

19201
    switch (st->codecpar->codec_type) {
2118
14774
    case AVMEDIA_TYPE_VIDEO:
2119
14774
        prefix  = 'v';
2120
14774
        flags  |= AV_OPT_FLAG_VIDEO_PARAM;
2121
14774
        break;
2122
4147
    case AVMEDIA_TYPE_AUDIO:
2123
4147
        prefix  = 'a';
2124
4147
        flags  |= AV_OPT_FLAG_AUDIO_PARAM;
2125
4147
        break;
2126
165
    case AVMEDIA_TYPE_SUBTITLE:
2127
165
        prefix  = 's';
2128
165
        flags  |= AV_OPT_FLAG_SUBTITLE_PARAM;
2129
165
        break;
2130
    }
2131
2132
73668
    while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2133
        const AVClass *priv_class;
2134
54467
        char *p = strchr(t->key, ':');
2135
2136
        /* check stream specification in opt name */
2137
54467
        if (p)
2138
248
            switch (check_stream_specifier(s, st, p + 1)) {
2139
199
            case  1: *p = 0; break;
2140
49
            case  0:         continue;
2141
            default:         exit_program(1);
2142
            }
2143
2144

54418
        if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2145
1363
            !codec ||
2146

1789
            ((priv_class = codec->priv_class) &&
2147
426
             av_opt_find(&priv_class, t->key, NULL, flags,
2148
                         AV_OPT_SEARCH_FAKE_OBJ)))
2149
53249
            av_dict_set(&ret, t->key, t->value, 0);
2150

1170
        else if (t->key[0] == prefix &&
2151
1
                 av_opt_find(&cc, t->key + 1, NULL, flags,
2152
                             AV_OPT_SEARCH_FAKE_OBJ))
2153
1
            av_dict_set(&ret, t->key + 1, t->value, 0);
2154
2155
54418
        if (p)
2156
199
            *p = ':';
2157
    }
2158
19201
    return ret;
2159
}
2160
2161
6130
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2162
                                           AVDictionary *codec_opts)
2163
{
2164
    int i;
2165
    AVDictionary **opts;
2166
2167
6130
    if (!s->nb_streams)
2168
64
        return NULL;
2169
6066
    opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2170
6066
    if (!opts) {
2171
        av_log(NULL, AV_LOG_ERROR,
2172
               "Could not alloc memory for stream options.\n");
2173
        return NULL;
2174
    }
2175
12520
    for (i = 0; i < s->nb_streams; i++)
2176
6454
        opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
2177
6454
                                    s, s->streams[i], NULL);
2178
6066
    return opts;
2179
}
2180
2181
148576
void *grow_array(void *array, int elem_size, int *size, int new_size)
2182
{
2183
148576
    if (new_size >= INT_MAX / elem_size) {
2184
        av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2185
        exit_program(1);
2186
    }
2187
148576
    if (*size < new_size) {
2188
148576
        uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2189
148576
        if (!tmp) {
2190
            av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2191
            exit_program(1);
2192
        }
2193
148576
        memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2194
148576
        *size = new_size;
2195
148576
        return tmp;
2196
    }
2197
    return array;
2198
}
2199
2200
4696
double get_rotation(AVStream *st)
2201
{
2202
4696
    uint8_t* displaymatrix = av_stream_get_side_data(st,
2203
                                                     AV_PKT_DATA_DISPLAYMATRIX, NULL);
2204
4696
    double theta = 0;
2205
4696
    if (displaymatrix)
2206
        theta = -av_display_rotation_get((int32_t*) displaymatrix);
2207
2208
4696
    theta -= 360*floor(theta/360 + 0.9/360);
2209
2210
4696
    if (fabs(theta - 90*round(theta/90)) > 2)
2211
        av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2212
               "If you want to help, upload a sample "
2213
               "of this file to https://streams.videolan.org/upload/ "
2214
               "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2215
2216
4696
    return theta;
2217
}
2218
2219
#if CONFIG_AVDEVICE
2220
static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2221
{
2222
    int ret, i;
2223
    AVDeviceInfoList *device_list = NULL;
2224
2225
    if (!fmt || !fmt->priv_class  || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2226
        return AVERROR(EINVAL);
2227
2228
    printf("Auto-detected sources for %s:\n", fmt->name);
2229
    if (!fmt->get_device_list) {
2230
        ret = AVERROR(ENOSYS);
2231
        printf("Cannot list sources. Not implemented.\n");
2232
        goto fail;
2233
    }
2234
2235
    if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2236
        printf("Cannot list sources.\n");
2237
        goto fail;
2238
    }
2239
2240
    for (i = 0; i < device_list->nb_devices; i++) {
2241
        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2242
               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2243
    }
2244
2245
  fail:
2246
    avdevice_free_list_devices(&device_list);
2247
    return ret;
2248
}
2249
2250
static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2251
{
2252
    int ret, i;
2253
    AVDeviceInfoList *device_list = NULL;
2254
2255
    if (!fmt || !fmt->priv_class  || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2256
        return AVERROR(EINVAL);
2257
2258
    printf("Auto-detected sinks for %s:\n", fmt->name);
2259
    if (!fmt->get_device_list) {
2260
        ret = AVERROR(ENOSYS);
2261
        printf("Cannot list sinks. Not implemented.\n");
2262
        goto fail;
2263
    }
2264
2265
    if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2266
        printf("Cannot list sinks.\n");
2267
        goto fail;
2268
    }
2269
2270
    for (i = 0; i < device_list->nb_devices; i++) {
2271
        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2272
               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2273
    }
2274
2275
  fail:
2276
    avdevice_free_list_devices(&device_list);
2277
    return ret;
2278
}
2279
2280
static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2281
{
2282
    int ret;
2283
    if (arg) {
2284
        char *opts_str = NULL;
2285
        av_assert0(dev && opts);
2286
        *dev = av_strdup(arg);
2287
        if (!*dev)
2288
            return AVERROR(ENOMEM);
2289
        if ((opts_str = strchr(*dev, ','))) {
2290
            *(opts_str++) = '\0';
2291
            if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2292
                av_freep(dev);
2293
                return ret;
2294
            }
2295
        }
2296
    } else
2297
        printf("\nDevice name is not provided.\n"
2298
                "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2299
    return 0;
2300
}
2301
2302
int show_sources(void *optctx, const char *opt, const char *arg)
2303
{
2304
    AVInputFormat *fmt = NULL;
2305
    char *dev = NULL;
2306
    AVDictionary *opts = NULL;
2307
    int ret = 0;
2308
    int error_level = av_log_get_level();
2309
2310
    av_log_set_level(AV_LOG_WARNING);
2311
2312
    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2313
        goto fail;
2314
2315
    do {
2316
        fmt = av_input_audio_device_next(fmt);
2317
        if (fmt) {
2318
            if (!strcmp(fmt->name, "lavfi"))
2319
                continue; //it's pointless to probe lavfi
2320
            if (dev && !av_match_name(dev, fmt->name))
2321
                continue;
2322
            print_device_sources(fmt, opts);
2323
        }
2324
    } while (fmt);
2325
    do {
2326
        fmt = av_input_video_device_next(fmt);
2327
        if (fmt) {
2328
            if (dev && !av_match_name(dev, fmt->name))
2329
                continue;
2330
            print_device_sources(fmt, opts);
2331
        }
2332
    } while (fmt);
2333
  fail:
2334
    av_dict_free(&opts);
2335
    av_free(dev);
2336
    av_log_set_level(error_level);
2337
    return ret;
2338
}
2339
2340
int show_sinks(void *optctx, const char *opt, const char *arg)
2341
{
2342
    AVOutputFormat *fmt = NULL;
2343
    char *dev = NULL;
2344
    AVDictionary *opts = NULL;
2345
    int ret = 0;
2346
    int error_level = av_log_get_level();
2347
2348
    av_log_set_level(AV_LOG_WARNING);
2349
2350
    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2351
        goto fail;
2352
2353
    do {
2354
        fmt = av_output_audio_device_next(fmt);
2355
        if (fmt) {
2356
            if (dev && !av_match_name(dev, fmt->name))
2357
                continue;
2358
            print_device_sinks(fmt, opts);
2359
        }
2360
    } while (fmt);
2361
    do {
2362
        fmt = av_output_video_device_next(fmt);
2363
        if (fmt) {
2364
            if (dev && !av_match_name(dev, fmt->name))
2365
                continue;
2366
            print_device_sinks(fmt, opts);
2367
        }
2368
    } while (fmt);
2369
  fail:
2370
    av_dict_free(&opts);
2371
    av_free(dev);
2372
    av_log_set_level(error_level);
2373
    return ret;
2374
}
2375
2376
#endif