GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/cmdutils.c Lines: 441 1225 36.0 %
Date: 2020-04-04 00:26:16 Branches: 334 1056 31.6 %

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 CONFIG_NETWORK
59
#include "libavformat/network.h"
60
#endif
61
#if HAVE_SYS_RESOURCE_H
62
#include <sys/time.h>
63
#include <sys/resource.h>
64
#endif
65
#ifdef _WIN32
66
#include <windows.h>
67
#endif
68
69
static int init_report(const char *env);
70
71
AVDictionary *sws_dict;
72
AVDictionary *swr_opts;
73
AVDictionary *format_opts, *codec_opts, *resample_opts;
74
75
static FILE *report_file;
76
static int report_file_level = AV_LOG_DEBUG;
77
int hide_banner = 0;
78
79
enum show_muxdemuxers {
80
    SHOW_DEFAULT,
81
    SHOW_DEMUXERS,
82
    SHOW_MUXERS,
83
};
84
85
17720
void init_opts(void)
86
{
87
17720
    av_dict_set(&sws_dict, "flags", "bicubic", 0);
88
17720
}
89
90
11813
void uninit_opts(void)
91
{
92
11813
    av_dict_free(&swr_opts);
93
11813
    av_dict_free(&sws_dict);
94
11813
    av_dict_free(&format_opts);
95
11813
    av_dict_free(&codec_opts);
96
11813
    av_dict_free(&resample_opts);
97
11813
}
98
99
void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
100
{
101
    vfprintf(stdout, fmt, vl);
102
}
103
104
static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
105
{
106
    va_list vl2;
107
    char line[1024];
108
    static int print_prefix = 1;
109
110
    va_copy(vl2, vl);
111
    av_log_default_callback(ptr, level, fmt, vl);
112
    av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
113
    va_end(vl2);
114
    if (report_file_level >= level) {
115
        fputs(line, report_file);
116
        fflush(report_file);
117
    }
118
}
119
120
5941
void init_dynload(void)
121
{
122
#if HAVE_SETDLLDIRECTORY && defined(_WIN32)
123
    /* Calling SetDllDirectory with the empty string (but not NULL) removes the
124
     * current working directory from the DLL search path as a security pre-caution. */
125
    SetDllDirectory("");
126
#endif
127
5941
}
128
129
static void (*program_exit)(int ret);
130
131
5941
void register_exit(void (*cb)(int ret))
132
{
133
5941
    program_exit = cb;
134
5941
}
135
136
5874
void exit_program(int ret)
137
{
138
5874
    if (program_exit)
139
5874
        program_exit(ret);
140
141
5874
    exit(ret);
142
}
143
144
20281
double parse_number_or_die(const char *context, const char *numstr, int type,
145
                           double min, double max)
146
{
147
    char *tail;
148
    const char *error;
149
20281
    double d = av_strtod(numstr, &tail);
150
20281
    if (*tail)
151
        error = "Expected number for %s but found: %s\n";
152

20281
    else if (d < min || d > max)
153
        error = "The value for %s was %s which is not within %f - %f\n";
154

20281
    else if (type == OPT_INT64 && (int64_t)d != d)
155
        error = "Expected int64 for %s but found %s\n";
156

20281
    else if (type == OPT_INT && (int)d != d)
157
        error = "Expected int for %s but found %s\n";
158
    else
159
20281
        return d;
160
    av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
161
    exit_program(1);
162
    return 0;
163
}
164
165
152
int64_t parse_time_or_die(const char *context, const char *timestr,
166
                          int is_duration)
167
{
168
    int64_t us;
169
152
    if (av_parse_time(&us, timestr, is_duration) < 0) {
170
        av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
171
               is_duration ? "duration" : "date", context, timestr);
172
        exit_program(1);
173
    }
174
152
    return us;
175
}
176
177
void show_help_options(const OptionDef *options, const char *msg, int req_flags,
178
                       int rej_flags, int alt_flags)
179
{
180
    const OptionDef *po;
181
    int first;
182
183
    first = 1;
184
    for (po = options; po->name; po++) {
185
        char buf[128];
186
187
        if (((po->flags & req_flags) != req_flags) ||
188
            (alt_flags && !(po->flags & alt_flags)) ||
189
            (po->flags & rej_flags))
190
            continue;
191
192
        if (first) {
193
            printf("%s\n", msg);
194
            first = 0;
195
        }
196
        av_strlcpy(buf, po->name, sizeof(buf));
197
        if (po->argname) {
198
            av_strlcat(buf, " ", sizeof(buf));
199
            av_strlcat(buf, po->argname, sizeof(buf));
200
        }
201
        printf("-%-17s  %s\n", buf, po->help);
202
    }
203
    printf("\n");
204
}
205
206
void show_help_children(const AVClass *class, int flags)
207
{
208
    const AVClass *child = NULL;
209
    if (class->option) {
210
        av_opt_show2(&class, NULL, flags, 0);
211
        printf("\n");
212
    }
213
214
    while (child = av_opt_child_class_next(class, child))
215
        show_help_children(child, flags);
216
}
217
218
797989
static const OptionDef *find_option(const OptionDef *po, const char *name)
219
{
220
797989
    const char *p = strchr(name, ':');
221
797989
    int len = p ? p - name : strlen(name);
222
223
107400135
    while (po->name) {
224

106937610
        if (!strncmp(name, po->name, len) && strlen(po->name) == len)
225
335464
            break;
226
106602146
        po++;
227
    }
228
797989
    return po;
229
}
230
231
/* _WIN32 means using the windows libc - cygwin doesn't define that
232
 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
233
 * it doesn't provide the actual command line via GetCommandLineW(). */
234
#if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
235
#include <shellapi.h>
236
/* Will be leaked on exit */
237
static char** win32_argv_utf8 = NULL;
238
static int win32_argc = 0;
239
240
/**
241
 * Prepare command line arguments for executable.
242
 * For Windows - perform wide-char to UTF-8 conversion.
243
 * Input arguments should be main() function arguments.
244
 * @param argc_ptr Arguments number (including executable)
245
 * @param argv_ptr Arguments list.
246
 */
247
static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
248
{
249
    char *argstr_flat;
250
    wchar_t **argv_w;
251
    int i, buffsize = 0, offset = 0;
252
253
    if (win32_argv_utf8) {
254
        *argc_ptr = win32_argc;
255
        *argv_ptr = win32_argv_utf8;
256
        return;
257
    }
258
259
    win32_argc = 0;
260
    argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
261
    if (win32_argc <= 0 || !argv_w)
262
        return;
263
264
    /* determine the UTF-8 buffer size (including NULL-termination symbols) */
265
    for (i = 0; i < win32_argc; i++)
266
        buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
267
                                        NULL, 0, NULL, NULL);
268
269
    win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
270
    argstr_flat     = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
271
    if (!win32_argv_utf8) {
272
        LocalFree(argv_w);
273
        return;
274
    }
275
276
    for (i = 0; i < win32_argc; i++) {
277
        win32_argv_utf8[i] = &argstr_flat[offset];
278
        offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
279
                                      &argstr_flat[offset],
280
                                      buffsize - offset, NULL, NULL);
281
    }
282
    win32_argv_utf8[i] = NULL;
283
    LocalFree(argv_w);
284
285
    *argc_ptr = win32_argc;
286
    *argv_ptr = win32_argv_utf8;
287
}
288
#else
289
5941
static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
290
{
291
    /* nothing to do */
292
5941
}
293
#endif /* HAVE_COMMANDLINETOARGVW */
294
295
61676
static int write_option(void *optctx, const OptionDef *po, const char *opt,
296
                        const char *arg)
297
{
298
    /* new-style options contain an offset into optctx, old-style address of
299
     * a global var*/
300
123352
    void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
301
61676
                (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
302
    int *dstcount;
303
304
61676
    if (po->flags & OPT_SPEC) {
305
23574
        SpecifierOpt **so = dst;
306
23574
        char *p = strchr(opt, ':');
307
        char *str;
308
309
23574
        dstcount = (int *)(so + 1);
310
23574
        *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
311
23574
        str = av_strdup(p ? p + 1 : "");
312
23574
        if (!str)
313
            return AVERROR(ENOMEM);
314
23574
        (*so)[*dstcount - 1].specifier = str;
315
23574
        dst = &(*so)[*dstcount - 1].u;
316
    }
317
318
61676
    if (po->flags & OPT_STRING) {
319
        char *str;
320
27645
        str = av_strdup(arg);
321
27645
        av_freep(dst);
322
27645
        if (!str)
323
            return AVERROR(ENOMEM);
324
27645
        *(char **)dst = str;
325

34031
    } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
326
15401
        *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
327
18630
    } else if (po->flags & OPT_INT64) {
328
4152
        *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
329
14478
    } else if (po->flags & OPT_TIME) {
330
150
        *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
331
14328
    } else if (po->flags & OPT_FLOAT) {
332
1
        *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
333
14327
    } else if (po->flags & OPT_DOUBLE) {
334
254
        *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
335
14073
    } else if (po->u.func_arg) {
336
14073
        int ret = po->u.func_arg(optctx, opt, arg);
337
14073
        if (ret < 0) {
338
            av_log(NULL, AV_LOG_ERROR,
339
                   "Failed to set value '%s' for option '%s': %s\n",
340
                   arg, opt, av_err2str(ret));
341
            return ret;
342
        }
343
    }
344
61676
    if (po->flags & OPT_EXIT)
345
1
        exit_program(0);
346
347
61675
    return 0;
348
}
349
350
7197
int parse_option(void *optctx, const char *opt, const char *arg,
351
                 const OptionDef *options)
352
{
353
    const OptionDef *po;
354
    int ret;
355
356
7197
    po = find_option(options, opt);
357

7197
    if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
358
        /* handle 'no' bool option */
359
        po = find_option(options, opt + 2);
360
        if ((po->name && (po->flags & OPT_BOOL)))
361
            arg = "0";
362
7197
    } else if (po->flags & OPT_BOOL)
363
52
        arg = "1";
364
365
7197
    if (!po->name)
366
6
        po = find_option(options, "default");
367
7197
    if (!po->name) {
368
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
369
        return AVERROR(EINVAL);
370
    }
371

7197
    if (po->flags & HAS_ARG && !arg) {
372
        av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
373
        return AVERROR(EINVAL);
374
    }
375
376
7197
    ret = write_option(optctx, po, opt, arg);
377
7197
    if (ret < 0)
378
        return ret;
379
380
7197
    return !!(po->flags & HAS_ARG);
381
}
382
383
67
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
384
                   void (*parse_arg_function)(void *, const char*))
385
{
386
    const char *opt;
387
67
    int optindex, handleoptions = 1, ret;
388
389
    /* perform system-dependent conversions for arguments list */
390
67
    prepare_app_arguments(&argc, &argv);
391
392
    /* parse options */
393
67
    optindex = 1;
394
415
    while (optindex < argc) {
395
348
        opt = argv[optindex++];
396
397

348
        if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
398

287
            if (opt[1] == '-' && opt[2] == '\0') {
399
                handleoptions = 0;
400
                continue;
401
            }
402
287
            opt++;
403
404
287
            if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
405
                exit_program(1);
406
287
            optindex += ret;
407
        } else {
408
61
            if (parse_arg_function)
409
61
                parse_arg_function(optctx, opt);
410
        }
411
    }
412
67
}
413
414
17652
int parse_optgroup(void *optctx, OptionGroup *g)
415
{
416
    int i, ret;
417
418
17652
    av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
419
17652
           g->group_def->name, g->arg);
420
421
72130
    for (i = 0; i < g->nb_opts; i++) {
422
54479
        Option *o = &g->opts[i];
423
424
54479
        if (g->group_def->flags &&
425
34527
            !(g->group_def->flags & o->opt->flags)) {
426
            av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
427
                   "%s %s -- you are trying to apply an input option to an "
428
                   "output file or vice versa. Move this option before the "
429
                   "file it belongs to.\n", o->key, o->opt->help,
430
                   g->group_def->name, g->arg);
431
            return AVERROR(EINVAL);
432
        }
433
434
54479
        av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
435
54479
               o->key, o->opt->help, o->val);
436
437
54479
        ret = write_option(optctx, o->opt, o->key, o->val);
438
54478
        if (ret < 0)
439
            return ret;
440
    }
441
442
17651
    av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
443
444
17651
    return 0;
445
}
446
447
29705
int locate_option(int argc, char **argv, const OptionDef *options,
448
                  const char *optname)
449
{
450
    const OptionDef *po;
451
    int i;
452
453
655834
    for (i = 1; i < argc; i++) {
454
626172
        const char *cur_opt = argv[i];
455
456
626172
        if (*cur_opt++ != '-')
457
18683
            continue;
458
459
607489
        po = find_option(options, cur_opt);
460

607489
        if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
461
58485
            po = find_option(options, cur_opt + 2);
462
463

607489
        if ((!po->name && !strcmp(cur_opt, optname)) ||
464

607489
             (po->name && !strcmp(optname, po->name)))
465
43
            return i;
466
467

607446
        if (!po->name || po->flags & HAS_ARG)
468
530791
            i++;
469
    }
470
29662
    return 0;
471
}
472
473
static void dump_argument(const char *a)
474
{
475
    const unsigned char *p;
476
477
    for (p = a; *p; p++)
478
        if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
479
              *p == '_' || (*p >= 'a' && *p <= 'z')))
480
            break;
481
    if (!*p) {
482
        fputs(a, report_file);
483
        return;
484
    }
485
    fputc('"', report_file);
486
    for (p = a; *p; p++) {
487
        if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
488
            fprintf(report_file, "\\%c", *p);
489
        else if (*p < ' ' || *p > '~')
490
            fprintf(report_file, "\\x%02x", *p);
491
        else
492
            fputc(*p, report_file);
493
    }
494
    fputc('"', report_file);
495
}
496
497
5941
static void check_options(const OptionDef *po)
498
{
499
1049994
    while (po->name) {
500
1044053
        if (po->flags & OPT_PERFILE)
501
187968
            av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
502
1044053
        po++;
503
    }
504
5941
}
505
506
5941
void parse_loglevel(int argc, char **argv, const OptionDef *options)
507
{
508
5941
    int idx = locate_option(argc, argv, options, "loglevel");
509
    const char *env;
510
511
5941
    check_options(options);
512
513
5941
    if (!idx)
514
5941
        idx = locate_option(argc, argv, options, "v");
515

5941
    if (idx && argv[idx + 1])
516
43
        opt_loglevel(NULL, "loglevel", argv[idx + 1]);
517
5941
    idx = locate_option(argc, argv, options, "report");
518

5941
    if ((env = getenv("FFREPORT")) || idx) {
519
        init_report(env);
520
        if (report_file) {
521
            int i;
522
            fprintf(report_file, "Command line:\n");
523
            for (i = 0; i < argc; i++) {
524
                dump_argument(argv[i]);
525
                fputc(i < argc - 1 ? ' ' : '\n', report_file);
526
            }
527
            fflush(report_file);
528
        }
529
    }
530
5941
    idx = locate_option(argc, argv, options, "hide_banner");
531
5941
    if (idx)
532
        hide_banner = 1;
533
5941
}
534
535
254561
static const AVOption *opt_find(void *obj, const char *name, const char *unit,
536
                            int opt_flags, int search_flags)
537
{
538
254561
    const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
539

254561
    if(o && !o->flags)
540
2
        return NULL;
541
254559
    return o;
542
}
543
544
#define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
545
70340
int opt_default(void *optctx, const char *opt, const char *arg)
546
{
547
    const AVOption *o;
548
70340
    int consumed = 0;
549
    char opt_stripped[128];
550
    const char *p;
551
70340
    const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
552
#if CONFIG_AVRESAMPLE
553
70340
    const AVClass *rc = avresample_get_class();
554
#endif
555
#if CONFIG_SWSCALE
556
70340
    const AVClass *sc = sws_get_class();
557
#endif
558
#if CONFIG_SWRESAMPLE
559
70340
    const AVClass *swr_class = swr_get_class();
560
#endif
561
562

70340
    if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
563
        av_log_set_level(AV_LOG_DEBUG);
564
565
70340
    if (!(p = strchr(opt, ':')))
566
70340
        p = opt + strlen(opt);
567
70340
    av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
568
569
70340
    if ((o = opt_find(&cc, opt_stripped, NULL, 0,
570
31716
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
571


41810
        ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
572
10094
         (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
573

38625
        av_dict_set(&codec_opts, opt, arg, FLAGS);
574
38625
        consumed = 1;
575
    }
576
70340
    if ((o = opt_find(&fc, opt, NULL, 0,
577
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
578

10030
        av_dict_set(&format_opts, opt, arg, FLAGS);
579
10030
        if (consumed)
580
70
            av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
581
10030
        consumed = 1;
582
    }
583
#if CONFIG_SWSCALE
584

70340
    if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
585
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
586
10063
        struct SwsContext *sws = sws_alloc_context();
587
10063
        int ret = av_opt_set(sws, opt, arg, 0);
588
10063
        sws_freeContext(sws);
589

10063
        if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
590

10063
            !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
591

10063
            !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
592
            av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
593
            return AVERROR(EINVAL);
594
        }
595
10063
        if (ret < 0) {
596
            av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
597
            return ret;
598
        }
599
600

10063
        av_dict_set(&sws_dict, opt, arg, FLAGS);
601
602
10063
        consumed = 1;
603
    }
604
#else
605
    if (!consumed && !strcmp(opt, "sws_flags")) {
606
        av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
607
        consumed = 1;
608
    }
609
#endif
610
#if CONFIG_SWRESAMPLE
611

70340
    if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
612
                                    AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
613
        struct SwrContext *swr = swr_alloc();
614
        int ret = av_opt_set(swr, opt, arg, 0);
615
        swr_free(&swr);
616
        if (ret < 0) {
617
            av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
618
            return ret;
619
        }
620
        av_dict_set(&swr_opts, opt, arg, FLAGS);
621
        consumed = 1;
622
    }
623
#endif
624
#if CONFIG_AVRESAMPLE
625
70340
    if ((o=opt_find(&rc, opt, NULL, 0,
626
                       AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
627

6
        av_dict_set(&resample_opts, opt, arg, FLAGS);
628
6
        consumed = 1;
629
    }
630
#endif
631
632
70340
    if (consumed)
633
58648
        return 0;
634
11692
    return AVERROR_OPTION_NOT_FOUND;
635
}
636
637
/*
638
 * Check whether given option is a group separator.
639
 *
640
 * @return index of the group definition that matched or -1 if none
641
 */
642
119025
static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
643
                                 const char *opt)
644
{
645
    int i;
646
647
351170
    for (i = 0; i < nb_groups; i++) {
648
238050
        const OptionGroupDef *p = &groups[i];
649

238050
        if (p->sep && !strcmp(p->sep, opt))
650
5905
            return i;
651
    }
652
653
113120
    return -1;
654
}
655
656
/*
657
 * Finish parsing an option group.
658
 *
659
 * @param group_idx which group definition should this group belong to
660
 * @param arg argument of the group delimiting option
661
 */
662
11779
static void finish_group(OptionParseContext *octx, int group_idx,
663
                         const char *arg)
664
{
665
11779
    OptionGroupList *l = &octx->groups[group_idx];
666
    OptionGroup *g;
667
668
11779
    GROW_ARRAY(l->groups, l->nb_groups);
669
11779
    g = &l->groups[l->nb_groups - 1];
670
671
11779
    *g             = octx->cur_group;
672
11779
    g->arg         = arg;
673
11779
    g->group_def   = l->group_def;
674
11779
    g->sws_dict    = sws_dict;
675
11779
    g->swr_opts    = swr_opts;
676
11779
    g->codec_opts  = codec_opts;
677
11779
    g->format_opts = format_opts;
678
11779
    g->resample_opts = resample_opts;
679
680
11779
    codec_opts  = NULL;
681
11779
    format_opts = NULL;
682
11779
    resample_opts = NULL;
683
11779
    sws_dict    = NULL;
684
11779
    swr_opts    = NULL;
685
11779
    init_opts();
686
687
11779
    memset(&octx->cur_group, 0, sizeof(octx->cur_group));
688
11779
}
689
690
/*
691
 * Add an option instance to currently parsed group.
692
 */
693
54480
static void add_opt(OptionParseContext *octx, const OptionDef *opt,
694
                    const char *key, const char *val)
695
{
696
54480
    int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
697
54480
    OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
698
699
54480
    GROW_ARRAY(g->opts, g->nb_opts);
700
54480
    g->opts[g->nb_opts - 1].opt = opt;
701
54480
    g->opts[g->nb_opts - 1].key = key;
702
54480
    g->opts[g->nb_opts - 1].val = val;
703
54480
}
704
705
5874
static void init_parse_context(OptionParseContext *octx,
706
                               const OptionGroupDef *groups, int nb_groups)
707
{
708
    static const OptionGroupDef global_group = { "global" };
709
    int i;
710
711
5874
    memset(octx, 0, sizeof(*octx));
712
713
5874
    octx->nb_groups = nb_groups;
714
5874
    octx->groups    = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
715
5874
    if (!octx->groups)
716
        exit_program(1);
717
718
17622
    for (i = 0; i < octx->nb_groups; i++)
719
11748
        octx->groups[i].group_def = &groups[i];
720
721
5874
    octx->global_opts.group_def = &global_group;
722
5874
    octx->global_opts.arg       = "";
723
724
5874
    init_opts();
725
5874
}
726
727
5872
void uninit_parse_context(OptionParseContext *octx)
728
{
729
    int i, j;
730
731
17616
    for (i = 0; i < octx->nb_groups; i++) {
732
11744
        OptionGroupList *l = &octx->groups[i];
733
734
23521
        for (j = 0; j < l->nb_groups; j++) {
735
11777
            av_freep(&l->groups[j].opts);
736
11777
            av_dict_free(&l->groups[j].codec_opts);
737
11777
            av_dict_free(&l->groups[j].format_opts);
738
11777
            av_dict_free(&l->groups[j].resample_opts);
739
740
11777
            av_dict_free(&l->groups[j].sws_dict);
741
11777
            av_dict_free(&l->groups[j].swr_opts);
742
        }
743
11744
        av_freep(&l->groups);
744
    }
745
5872
    av_freep(&octx->groups);
746
747
5872
    av_freep(&octx->cur_group.opts);
748
5872
    av_freep(&octx->global_opts.opts);
749
750
5872
    uninit_opts();
751
5872
}
752
753
5874
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
754
                      const OptionDef *options,
755
                      const OptionGroupDef *groups, int nb_groups)
756
{
757
5874
    int optindex = 1;
758
5874
    int dashdash = -2;
759
760
    /* perform system-dependent conversions for arguments list */
761
5874
    prepare_app_arguments(&argc, &argv);
762
763
5874
    init_parse_context(octx, groups, nb_groups);
764
5874
    av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
765
766
130773
    while (optindex < argc) {
767
124899
        const char *opt = argv[optindex++], *arg;
768
        const OptionDef *po;
769
        int ret;
770
771
124899
        av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
772
773

124899
        if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
774
            dashdash = optindex;
775
            continue;
776
        }
777
        /* unnamed group separators, e.g. output filename */
778

124899
        if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
779
5874
            finish_group(octx, 0, opt);
780
5874
            av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
781
5874
            continue;
782
        }
783
119025
        opt++;
784
785
#define GET_ARG(arg)                                                           \
786
do {                                                                           \
787
    arg = argv[optindex++];                                                    \
788
    if (!arg) {                                                                \
789
        av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
790
        return AVERROR(EINVAL);                                                \
791
    }                                                                          \
792
} while (0)
793
794
        /* named group separators, e.g. -i */
795
119025
        if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
796
5905
            GET_ARG(arg);
797
5905
            finish_group(octx, ret, arg);
798
5905
            av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
799
5905
                   groups[ret].name, arg);
800
5905
            continue;
801
        }
802
803
        /* normal options */
804
113120
        po = find_option(options, opt);
805
113120
        if (po->name) {
806
42788
            if (po->flags & OPT_EXIT) {
807
                /* optional argument, e.g. -h */
808
1
                arg = argv[optindex++];
809
42787
            } else if (po->flags & HAS_ARG) {
810
39258
                GET_ARG(arg);
811
            } else {
812
3529
                arg = "1";
813
            }
814
815
42788
            add_opt(octx, po, opt, arg);
816
42788
            av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
817
                   "argument '%s'.\n", po->name, po->help, arg);
818
42788
            continue;
819
        }
820
821
        /* AVOptions */
822
70332
        if (argv[optindex]) {
823
70332
            ret = opt_default(NULL, opt, argv[optindex]);
824
70332
            if (ret >= 0) {
825
58640
                av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
826
58640
                       "argument '%s'.\n", opt, argv[optindex]);
827
58640
                optindex++;
828
58640
                continue;
829
11692
            } else if (ret != AVERROR_OPTION_NOT_FOUND) {
830
                av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
831
                       "with argument '%s'.\n", opt, argv[optindex]);
832
                return ret;
833
            }
834
        }
835
836
        /* boolean -nofoo options */
837

23384
        if (opt[0] == 'n' && opt[1] == 'o' &&
838
11692
            (po = find_option(options, opt + 2)) &&
839

11692
            po->name && po->flags & OPT_BOOL) {
840
11692
            add_opt(octx, po, opt, "0");
841
11692
            av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
842
                   "argument 0.\n", po->name, po->help);
843
11692
            continue;
844
        }
845
846
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
847
        return AVERROR_OPTION_NOT_FOUND;
848
    }
849
850


5874
    if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
851
        av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
852
               "command: may be ignored.\n");
853
854
5874
    av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
855
856
5874
    return 0;
857
}
858
859
5843
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
860
{
861
    int ret;
862
5843
    unsigned flags = av_get_cpu_flags();
863
864
5843
    if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
865
        return ret;
866
867
5843
    av_force_cpu_flags(flags);
868
5843
    return 0;
869
}
870
871
86
int opt_loglevel(void *optctx, const char *opt, const char *arg)
872
{
873
86
    const struct { const char *name; int level; } log_levels[] = {
874
        { "quiet"  , AV_LOG_QUIET   },
875
        { "panic"  , AV_LOG_PANIC   },
876
        { "fatal"  , AV_LOG_FATAL   },
877
        { "error"  , AV_LOG_ERROR   },
878
        { "warning", AV_LOG_WARNING },
879
        { "info"   , AV_LOG_INFO    },
880
        { "verbose", AV_LOG_VERBOSE },
881
        { "debug"  , AV_LOG_DEBUG   },
882
        { "trace"  , AV_LOG_TRACE   },
883
    };
884
    const char *token;
885
    char *tail;
886
86
    int flags = av_log_get_flags();
887
86
    int level = av_log_get_level();
888
86
    int cmd, i = 0;
889
890
86
    av_assert0(arg);
891
86
    while (*arg) {
892
86
        token = arg;
893

86
        if (*token == '+' || *token == '-') {
894
            cmd = *token++;
895
        } else {
896
86
            cmd = 0;
897
        }
898

86
        if (!i && !cmd) {
899
86
            flags = 0;  /* missing relative prefix, build absolute value */
900
        }
901
86
        if (!strncmp(token, "repeat", 6)) {
902
            if (cmd == '-') {
903
                flags |= AV_LOG_SKIP_REPEATED;
904
            } else {
905
                flags &= ~AV_LOG_SKIP_REPEATED;
906
            }
907
            arg = token + 6;
908
86
        } else if (!strncmp(token, "level", 5)) {
909
            if (cmd == '-') {
910
                flags &= ~AV_LOG_PRINT_LEVEL;
911
            } else {
912
                flags |= AV_LOG_PRINT_LEVEL;
913
            }
914
            arg = token + 5;
915
        } else {
916
86
            break;
917
        }
918
        i++;
919
    }
920
86
    if (!*arg) {
921
        goto end;
922
86
    } else if (*arg == '+') {
923
        arg++;
924
86
    } else if (!i) {
925
86
        flags = av_log_get_flags();  /* level value without prefix, reset flags */
926
    }
927
928
848
    for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
929
766
        if (!strcmp(log_levels[i].name, arg)) {
930
4
            level = log_levels[i].level;
931
4
            goto end;
932
        }
933
    }
934
935
82
    level = strtol(arg, &tail, 10);
936
82
    if (*tail) {
937
        av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
938
               "Possible levels are numbers or:\n", arg);
939
        for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
940
            av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
941
        exit_program(1);
942
    }
943
944
82
end:
945
86
    av_log_set_flags(flags);
946
86
    av_log_set_level(level);
947
86
    return 0;
948
}
949
950
static void expand_filename_template(AVBPrint *bp, const char *template,
951
                                     struct tm *tm)
952
{
953
    int c;
954
955
    while ((c = *(template++))) {
956
        if (c == '%') {
957
            if (!(c = *(template++)))
958
                break;
959
            switch (c) {
960
            case 'p':
961
                av_bprintf(bp, "%s", program_name);
962
                break;
963
            case 't':
964
                av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
965
                           tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
966
                           tm->tm_hour, tm->tm_min, tm->tm_sec);
967
                break;
968
            case '%':
969
                av_bprint_chars(bp, c, 1);
970
                break;
971
            }
972
        } else {
973
            av_bprint_chars(bp, c, 1);
974
        }
975
    }
976
}
977
978
static int init_report(const char *env)
979
{
980
    char *filename_template = NULL;
981
    char *key, *val;
982
    int ret, count = 0;
983
    int prog_loglevel, envlevel = 0;
984
    time_t now;
985
    struct tm *tm;
986
    AVBPrint filename;
987
988
    if (report_file) /* already opened */
989
        return 0;
990
    time(&now);
991
    tm = localtime(&now);
992
993
    while (env && *env) {
994
        if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
995
            if (count)
996
                av_log(NULL, AV_LOG_ERROR,
997
                       "Failed to parse FFREPORT environment variable: %s\n",
998
                       av_err2str(ret));
999
            break;
1000
        }
1001
        if (*env)
1002
            env++;
1003
        count++;
1004
        if (!strcmp(key, "file")) {
1005
            av_free(filename_template);
1006
            filename_template = val;
1007
            val = NULL;
1008
        } else if (!strcmp(key, "level")) {
1009
            char *tail;
1010
            report_file_level = strtol(val, &tail, 10);
1011
            if (*tail) {
1012
                av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1013
                exit_program(1);
1014
            }
1015
            envlevel = 1;
1016
        } else {
1017
            av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1018
        }
1019
        av_free(val);
1020
        av_free(key);
1021
    }
1022
1023
    av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
1024
    expand_filename_template(&filename,
1025
                             av_x_if_null(filename_template, "%p-%t.log"), tm);
1026
    av_free(filename_template);
1027
    if (!av_bprint_is_complete(&filename)) {
1028
        av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1029
        return AVERROR(ENOMEM);
1030
    }
1031
1032
    prog_loglevel = av_log_get_level();
1033
    if (!envlevel)
1034
        report_file_level = FFMAX(report_file_level, prog_loglevel);
1035
1036
    report_file = fopen(filename.str, "w");
1037
    if (!report_file) {
1038
        int ret = AVERROR(errno);
1039
        av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1040
               filename.str, strerror(errno));
1041
        return ret;
1042
    }
1043
    av_log_set_callback(log_callback_report);
1044
    av_log(NULL, AV_LOG_INFO,
1045
           "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1046
           "Report written to \"%s\"\n"
1047
           "Log level: %d\n",
1048
           program_name,
1049
           tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1050
           tm->tm_hour, tm->tm_min, tm->tm_sec,
1051
           filename.str, report_file_level);
1052
    av_bprint_finalize(&filename, NULL);
1053
    return 0;
1054
}
1055
1056
int opt_report(void *optctx, const char *opt, const char *arg)
1057
{
1058
    return init_report(NULL);
1059
}
1060
1061
int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1062
{
1063
    char *tail;
1064
    size_t max;
1065
1066
    max = strtol(arg, &tail, 10);
1067
    if (*tail) {
1068
        av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1069
        exit_program(1);
1070
    }
1071
    av_max_alloc(max);
1072
    return 0;
1073
}
1074
1075
int opt_timelimit(void *optctx, const char *opt, const char *arg)
1076
{
1077
#if HAVE_SETRLIMIT
1078
    int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1079
    struct rlimit rl = { lim, lim + 1 };
1080
    if (setrlimit(RLIMIT_CPU, &rl))
1081
        perror("setrlimit");
1082
#else
1083
    av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1084
#endif
1085
    return 0;
1086
}
1087
1088
81
void print_error(const char *filename, int err)
1089
{
1090
    char errbuf[128];
1091
81
    const char *errbuf_ptr = errbuf;
1092
1093
81
    if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1094
        errbuf_ptr = strerror(AVUNERROR(err));
1095
81
    av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1096
81
}
1097
1098
static int warned_cfg = 0;
1099
1100
#define INDENT        1
1101
#define SHOW_VERSION  2
1102
#define SHOW_CONFIG   4
1103
#define SHOW_COPYRIGHT 8
1104
1105
#define PRINT_LIB_INFO(libname, LIBNAME, flags, level)                  \
1106
    if (CONFIG_##LIBNAME) {                                             \
1107
        const char *indent = flags & INDENT? "  " : "";                 \
1108
        if (flags & SHOW_VERSION) {                                     \
1109
            unsigned int version = libname##_version();                 \
1110
            av_log(NULL, level,                                         \
1111
                   "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n",            \
1112
                   indent, #libname,                                    \
1113
                   LIB##LIBNAME##_VERSION_MAJOR,                        \
1114
                   LIB##LIBNAME##_VERSION_MINOR,                        \
1115
                   LIB##LIBNAME##_VERSION_MICRO,                        \
1116
                   AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1117
                   AV_VERSION_MICRO(version));                          \
1118
        }                                                               \
1119
        if (flags & SHOW_CONFIG) {                                      \
1120
            const char *cfg = libname##_configuration();                \
1121
            if (strcmp(FFMPEG_CONFIGURATION, cfg)) {                    \
1122
                if (!warned_cfg) {                                      \
1123
                    av_log(NULL, level,                                 \
1124
                            "%sWARNING: library configuration mismatch\n", \
1125
                            indent);                                    \
1126
                    warned_cfg = 1;                                     \
1127
                }                                                       \
1128
                av_log(NULL, level, "%s%-11s configuration: %s\n",      \
1129
                        indent, #libname, cfg);                         \
1130
            }                                                           \
1131
        }                                                               \
1132
    }                                                                   \
1133
1134
11882
static void print_all_libs_info(int flags, int level)
1135
{
1136


11882
    PRINT_LIB_INFO(avutil,     AVUTIL,     flags, level);
1137


11882
    PRINT_LIB_INFO(avcodec,    AVCODEC,    flags, level);
1138


11882
    PRINT_LIB_INFO(avformat,   AVFORMAT,   flags, level);
1139


11882
    PRINT_LIB_INFO(avdevice,   AVDEVICE,   flags, level);
1140


11882
    PRINT_LIB_INFO(avfilter,   AVFILTER,   flags, level);
1141


11882
    PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1142


11882
    PRINT_LIB_INFO(swscale,    SWSCALE,    flags, level);
1143


11882
    PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1144


11882
    PRINT_LIB_INFO(postproc,   POSTPROC,   flags, level);
1145
11882
}
1146
1147
5941
static void print_program_info(int flags, int level)
1148
{
1149
5941
    const char *indent = flags & INDENT? "  " : "";
1150
1151
5941
    av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1152
5941
    if (flags & SHOW_COPYRIGHT)
1153
5941
        av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1154
               program_birth_year, CONFIG_THIS_YEAR);
1155
5941
    av_log(NULL, level, "\n");
1156
5941
    av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1157
1158
5941
    av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1159
5941
}
1160
1161
static void print_buildconf(int flags, int level)
1162
{
1163
    const char *indent = flags & INDENT ? "  " : "";
1164
    char str[] = { FFMPEG_CONFIGURATION };
1165
    char *conflist, *remove_tilde, *splitconf;
1166
1167
    // Change all the ' --' strings to '~--' so that
1168
    // they can be identified as tokens.
1169
    while ((conflist = strstr(str, " --")) != NULL) {
1170
        strncpy(conflist, "~--", 3);
1171
    }
1172
1173
    // Compensate for the weirdness this would cause
1174
    // when passing 'pkg-config --static'.
1175
    while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1176
        strncpy(remove_tilde, "pkg-config ", 11);
1177
    }
1178
1179
    splitconf = strtok(str, "~");
1180
    av_log(NULL, level, "\n%sconfiguration:\n", indent);
1181
    while (splitconf != NULL) {
1182
        av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1183
        splitconf = strtok(NULL, "~");
1184
    }
1185
}
1186
1187
5941
void show_banner(int argc, char **argv, const OptionDef *options)
1188
{
1189
5941
    int idx = locate_option(argc, argv, options, "version");
1190

5941
    if (hide_banner || idx)
1191
        return;
1192
1193
5941
    print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1194
5941
    print_all_libs_info(INDENT|SHOW_CONFIG,  AV_LOG_INFO);
1195
5941
    print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1196
}
1197
1198
int show_version(void *optctx, const char *opt, const char *arg)
1199
{
1200
    av_log_set_callback(log_callback_help);
1201
    print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1202
    print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1203
1204
    return 0;
1205
}
1206
1207
int show_buildconf(void *optctx, const char *opt, const char *arg)
1208
{
1209
    av_log_set_callback(log_callback_help);
1210
    print_buildconf      (INDENT|0, AV_LOG_INFO);
1211
1212
    return 0;
1213
}
1214
1215
int show_license(void *optctx, const char *opt, const char *arg)
1216
{
1217
#if CONFIG_NONFREE
1218
    printf(
1219
    "This version of %s has nonfree parts compiled in.\n"
1220
    "Therefore it is not legally redistributable.\n",
1221
    program_name );
1222
#elif CONFIG_GPLV3
1223
    printf(
1224
    "%s is free software; you can redistribute it and/or modify\n"
1225
    "it under the terms of the GNU General Public License as published by\n"
1226
    "the Free Software Foundation; either version 3 of the License, or\n"
1227
    "(at your option) any later version.\n"
1228
    "\n"
1229
    "%s is distributed in the hope that it will be useful,\n"
1230
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1231
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1232
    "GNU General Public License for more details.\n"
1233
    "\n"
1234
    "You should have received a copy of the GNU General Public License\n"
1235
    "along with %s.  If not, see <http://www.gnu.org/licenses/>.\n",
1236
    program_name, program_name, program_name );
1237
#elif CONFIG_GPL
1238
    printf(
1239
    "%s is free software; you can redistribute it and/or modify\n"
1240
    "it under the terms of the GNU General Public License as published by\n"
1241
    "the Free Software Foundation; either version 2 of the License, or\n"
1242
    "(at your option) any later version.\n"
1243
    "\n"
1244
    "%s is distributed in the hope that it will be useful,\n"
1245
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1246
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1247
    "GNU General Public License for more details.\n"
1248
    "\n"
1249
    "You should have received a copy of the GNU General Public License\n"
1250
    "along with %s; if not, write to the Free Software\n"
1251
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1252
    program_name, program_name, program_name );
1253
#elif CONFIG_LGPLV3
1254
    printf(
1255
    "%s is free software; you can redistribute it and/or modify\n"
1256
    "it under the terms of the GNU Lesser General Public License as published by\n"
1257
    "the Free Software Foundation; either version 3 of the License, or\n"
1258
    "(at your option) any later version.\n"
1259
    "\n"
1260
    "%s is distributed in the hope that it will be useful,\n"
1261
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1262
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
1263
    "GNU Lesser General Public License for more details.\n"
1264
    "\n"
1265
    "You should have received a copy of the GNU Lesser General Public License\n"
1266
    "along with %s.  If not, see <http://www.gnu.org/licenses/>.\n",
1267
    program_name, program_name, program_name );
1268
#else
1269
    printf(
1270
    "%s is free software; you can redistribute it and/or\n"
1271
    "modify it under the terms of the GNU Lesser General Public\n"
1272
    "License as published by the Free Software Foundation; either\n"
1273
    "version 2.1 of the License, or (at your option) any later version.\n"
1274
    "\n"
1275
    "%s is distributed in the hope that it will be useful,\n"
1276
    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1277
    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\n"
1278
    "Lesser General Public License for more details.\n"
1279
    "\n"
1280
    "You should have received a copy of the GNU Lesser General Public\n"
1281
    "License along with %s; if not, write to the Free Software\n"
1282
    "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1283
    program_name, program_name, program_name );
1284
#endif
1285
1286
    return 0;
1287
}
1288
1289
static int is_device(const AVClass *avclass)
1290
{
1291
    if (!avclass)
1292
        return 0;
1293
    return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1294
}
1295
1296
static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
1297
{
1298
    void *ifmt_opaque = NULL;
1299
    const AVInputFormat *ifmt  = NULL;
1300
    void *ofmt_opaque = NULL;
1301
    const AVOutputFormat *ofmt = NULL;
1302
    const char *last_name;
1303
    int is_dev;
1304
1305
    printf("%s\n"
1306
           " D. = Demuxing supported\n"
1307
           " .E = Muxing supported\n"
1308
           " --\n", device_only ? "Devices:" : "File formats:");
1309
    last_name = "000";
1310
    for (;;) {
1311
        int decode = 0;
1312
        int encode = 0;
1313
        const char *name      = NULL;
1314
        const char *long_name = NULL;
1315
1316
        if (muxdemuxers !=SHOW_DEMUXERS) {
1317
            ofmt_opaque = NULL;
1318
            while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
1319
                is_dev = is_device(ofmt->priv_class);
1320
                if (!is_dev && device_only)
1321
                    continue;
1322
                if ((!name || strcmp(ofmt->name, name) < 0) &&
1323
                    strcmp(ofmt->name, last_name) > 0) {
1324
                    name      = ofmt->name;
1325
                    long_name = ofmt->long_name;
1326
                    encode    = 1;
1327
                }
1328
            }
1329
        }
1330
        if (muxdemuxers != SHOW_MUXERS) {
1331
            ifmt_opaque = NULL;
1332
            while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
1333
                is_dev = is_device(ifmt->priv_class);
1334
                if (!is_dev && device_only)
1335
                    continue;
1336
                if ((!name || strcmp(ifmt->name, name) < 0) &&
1337
                    strcmp(ifmt->name, last_name) > 0) {
1338
                    name      = ifmt->name;
1339
                    long_name = ifmt->long_name;
1340
                    encode    = 0;
1341
                }
1342
                if (name && strcmp(ifmt->name, name) == 0)
1343
                    decode = 1;
1344
            }
1345
        }
1346
        if (!name)
1347
            break;
1348
        last_name = name;
1349
1350
        printf(" %s%s %-15s %s\n",
1351
               decode ? "D" : " ",
1352
               encode ? "E" : " ",
1353
               name,
1354
            long_name ? long_name:" ");
1355
    }
1356
    return 0;
1357
}
1358
1359
int show_formats(void *optctx, const char *opt, const char *arg)
1360
{
1361
    return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
1362
}
1363
1364
int show_muxers(void *optctx, const char *opt, const char *arg)
1365
{
1366
    return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
1367
}
1368
1369
int show_demuxers(void *optctx, const char *opt, const char *arg)
1370
{
1371
    return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
1372
}
1373
1374
int show_devices(void *optctx, const char *opt, const char *arg)
1375
{
1376
    return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
1377
}
1378
1379
#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1380
    if (codec->field) {                                                      \
1381
        const type *p = codec->field;                                        \
1382
                                                                             \
1383
        printf("    Supported " list_name ":");                              \
1384
        while (*p != term) {                                                 \
1385
            get_name(*p);                                                    \
1386
            printf(" %s", name);                                             \
1387
            p++;                                                             \
1388
        }                                                                    \
1389
        printf("\n");                                                        \
1390
    }                                                                        \
1391
1392
static void print_codec(const AVCodec *c)
1393
{
1394
    int encoder = av_codec_is_encoder(c);
1395
1396
    printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1397
           c->long_name ? c->long_name : "");
1398
1399
    printf("    General capabilities: ");
1400
    if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1401
        printf("horizband ");
1402
    if (c->capabilities & AV_CODEC_CAP_DR1)
1403
        printf("dr1 ");
1404
    if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1405
        printf("trunc ");
1406
    if (c->capabilities & AV_CODEC_CAP_DELAY)
1407
        printf("delay ");
1408
    if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1409
        printf("small ");
1410
    if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1411
        printf("subframes ");
1412
    if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1413
        printf("exp ");
1414
    if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1415
        printf("chconf ");
1416
    if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1417
        printf("paramchange ");
1418
    if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1419
        printf("variable ");
1420
    if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1421
                           AV_CODEC_CAP_SLICE_THREADS |
1422
                           AV_CODEC_CAP_AUTO_THREADS))
1423
        printf("threads ");
1424
    if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
1425
        printf("avoidprobe ");
1426
    if (c->capabilities & AV_CODEC_CAP_INTRA_ONLY)
1427
        printf("intraonly ");
1428
    if (c->capabilities & AV_CODEC_CAP_LOSSLESS)
1429
        printf("lossless ");
1430
    if (c->capabilities & AV_CODEC_CAP_HARDWARE)
1431
        printf("hardware ");
1432
    if (c->capabilities & AV_CODEC_CAP_HYBRID)
1433
        printf("hybrid ");
1434
    if (!c->capabilities)
1435
        printf("none");
1436
    printf("\n");
1437
1438
    if (c->type == AVMEDIA_TYPE_VIDEO ||
1439
        c->type == AVMEDIA_TYPE_AUDIO) {
1440
        printf("    Threading capabilities: ");
1441
        switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1442
                                   AV_CODEC_CAP_SLICE_THREADS |
1443
                                   AV_CODEC_CAP_AUTO_THREADS)) {
1444
        case AV_CODEC_CAP_FRAME_THREADS |
1445
             AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1446
        case AV_CODEC_CAP_FRAME_THREADS: printf("frame");           break;
1447
        case AV_CODEC_CAP_SLICE_THREADS: printf("slice");           break;
1448
        case AV_CODEC_CAP_AUTO_THREADS : printf("auto");            break;
1449
        default:                         printf("none");            break;
1450
        }
1451
        printf("\n");
1452
    }
1453
1454
    if (avcodec_get_hw_config(c, 0)) {
1455
        printf("    Supported hardware devices: ");
1456
        for (int i = 0;; i++) {
1457
            const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
1458
            if (!config)
1459
                break;
1460
            printf("%s ", av_hwdevice_get_type_name(config->device_type));
1461
        }
1462
        printf("\n");
1463
    }
1464
1465
    if (c->supported_framerates) {
1466
        const AVRational *fps = c->supported_framerates;
1467
1468
        printf("    Supported framerates:");
1469
        while (fps->num) {
1470
            printf(" %d/%d", fps->num, fps->den);
1471
            fps++;
1472
        }
1473
        printf("\n");
1474
    }
1475
    PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1476
                          AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1477
    PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1478
                          GET_SAMPLE_RATE_NAME);
1479
    PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1480
                          AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1481
    PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1482
                          0, GET_CH_LAYOUT_DESC);
1483
1484
    if (c->priv_class) {
1485
        show_help_children(c->priv_class,
1486
                           AV_OPT_FLAG_ENCODING_PARAM |
1487
                           AV_OPT_FLAG_DECODING_PARAM);
1488
    }
1489
}
1490
1491
static char get_media_type_char(enum AVMediaType type)
1492
{
1493
    switch (type) {
1494
        case AVMEDIA_TYPE_VIDEO:    return 'V';
1495
        case AVMEDIA_TYPE_AUDIO:    return 'A';
1496
        case AVMEDIA_TYPE_DATA:     return 'D';
1497
        case AVMEDIA_TYPE_SUBTITLE: return 'S';
1498
        case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1499
        default:                    return '?';
1500
    }
1501
}
1502
1503
static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1504
                                        int encoder)
1505
{
1506
    while ((prev = av_codec_next(prev))) {
1507
        if (prev->id == id &&
1508
            (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1509
            return prev;
1510
    }
1511
    return NULL;
1512
}
1513
1514
static int compare_codec_desc(const void *a, const void *b)
1515
{
1516
    const AVCodecDescriptor * const *da = a;
1517
    const AVCodecDescriptor * const *db = b;
1518
1519
    return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1520
           strcmp((*da)->name, (*db)->name);
1521
}
1522
1523
static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1524
{
1525
    const AVCodecDescriptor *desc = NULL;
1526
    const AVCodecDescriptor **codecs;
1527
    unsigned nb_codecs = 0, i = 0;
1528
1529
    while ((desc = avcodec_descriptor_next(desc)))
1530
        nb_codecs++;
1531
    if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1532
        av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1533
        exit_program(1);
1534
    }
1535
    desc = NULL;
1536
    while ((desc = avcodec_descriptor_next(desc)))
1537
        codecs[i++] = desc;
1538
    av_assert0(i == nb_codecs);
1539
    qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1540
    *rcodecs = codecs;
1541
    return nb_codecs;
1542
}
1543
1544
static void print_codecs_for_id(enum AVCodecID id, int encoder)
1545
{
1546
    const AVCodec *codec = NULL;
1547
1548
    printf(" (%s: ", encoder ? "encoders" : "decoders");
1549
1550
    while ((codec = next_codec_for_id(id, codec, encoder)))
1551
        printf("%s ", codec->name);
1552
1553
    printf(")");
1554
}
1555
1556
int show_codecs(void *optctx, const char *opt, const char *arg)
1557
{
1558
    const AVCodecDescriptor **codecs;
1559
    unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1560
1561
    printf("Codecs:\n"
1562
           " D..... = Decoding supported\n"
1563
           " .E.... = Encoding supported\n"
1564
           " ..V... = Video codec\n"
1565
           " ..A... = Audio codec\n"
1566
           " ..S... = Subtitle codec\n"
1567
           " ...I.. = Intra frame-only codec\n"
1568
           " ....L. = Lossy compression\n"
1569
           " .....S = Lossless compression\n"
1570
           " -------\n");
1571
    for (i = 0; i < nb_codecs; i++) {
1572
        const AVCodecDescriptor *desc = codecs[i];
1573
        const AVCodec *codec = NULL;
1574
1575
        if (strstr(desc->name, "_deprecated"))
1576
            continue;
1577
1578
        printf(" ");
1579
        printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1580
        printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1581
1582
        printf("%c", get_media_type_char(desc->type));
1583
        printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1584
        printf((desc->props & AV_CODEC_PROP_LOSSY)      ? "L" : ".");
1585
        printf((desc->props & AV_CODEC_PROP_LOSSLESS)   ? "S" : ".");
1586
1587
        printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1588
1589
        /* print decoders/encoders when there's more than one or their
1590
         * names are different from codec name */
1591
        while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1592
            if (strcmp(codec->name, desc->name)) {
1593
                print_codecs_for_id(desc->id, 0);
1594
                break;
1595
            }
1596
        }
1597
        codec = NULL;
1598
        while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1599
            if (strcmp(codec->name, desc->name)) {
1600
                print_codecs_for_id(desc->id, 1);
1601
                break;
1602
            }
1603
        }
1604
1605
        printf("\n");
1606
    }
1607
    av_free(codecs);
1608
    return 0;
1609
}
1610
1611
static void print_codecs(int encoder)
1612
{
1613
    const AVCodecDescriptor **codecs;
1614
    unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1615
1616
    printf("%s:\n"
1617
           " V..... = Video\n"
1618
           " A..... = Audio\n"
1619
           " S..... = Subtitle\n"
1620
           " .F.... = Frame-level multithreading\n"
1621
           " ..S... = Slice-level multithreading\n"
1622
           " ...X.. = Codec is experimental\n"
1623
           " ....B. = Supports draw_horiz_band\n"
1624
           " .....D = Supports direct rendering method 1\n"
1625
           " ------\n",
1626
           encoder ? "Encoders" : "Decoders");
1627
    for (i = 0; i < nb_codecs; i++) {
1628
        const AVCodecDescriptor *desc = codecs[i];
1629
        const AVCodec *codec = NULL;
1630
1631
        while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1632
            printf(" %c", get_media_type_char(desc->type));
1633
            printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1634
            printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1635
            printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL)  ? "X" : ".");
1636
            printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1637
            printf((codec->capabilities & AV_CODEC_CAP_DR1)           ? "D" : ".");
1638
1639
            printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1640
            if (strcmp(codec->name, desc->name))
1641
                printf(" (codec %s)", desc->name);
1642
1643
            printf("\n");
1644
        }
1645
    }
1646
    av_free(codecs);
1647
}
1648
1649
int show_decoders(void *optctx, const char *opt, const char *arg)
1650
{
1651
    print_codecs(0);
1652
    return 0;
1653
}
1654
1655
int show_encoders(void *optctx, const char *opt, const char *arg)
1656
{
1657
    print_codecs(1);
1658
    return 0;
1659
}
1660
1661
int show_bsfs(void *optctx, const char *opt, const char *arg)
1662
{
1663
    const AVBitStreamFilter *bsf = NULL;
1664
    void *opaque = NULL;
1665
1666
    printf("Bitstream filters:\n");
1667
    while ((bsf = av_bsf_iterate(&opaque)))
1668
        printf("%s\n", bsf->name);
1669
    printf("\n");
1670
    return 0;
1671
}
1672
1673
int show_protocols(void *optctx, const char *opt, const char *arg)
1674
{
1675
    void *opaque = NULL;
1676
    const char *name;
1677
1678
    printf("Supported file protocols:\n"
1679
           "Input:\n");
1680
    while ((name = avio_enum_protocols(&opaque, 0)))
1681
        printf("  %s\n", name);
1682
    printf("Output:\n");
1683
    while ((name = avio_enum_protocols(&opaque, 1)))
1684
        printf("  %s\n", name);
1685
    return 0;
1686
}
1687
1688
int show_filters(void *optctx, const char *opt, const char *arg)
1689
{
1690
#if CONFIG_AVFILTER
1691
    const AVFilter *filter = NULL;
1692
    char descr[64], *descr_cur;
1693
    void *opaque = NULL;
1694
    int i, j;
1695
    const AVFilterPad *pad;
1696
1697
    printf("Filters:\n"
1698
           "  T.. = Timeline support\n"
1699
           "  .S. = Slice threading\n"
1700
           "  ..C = Command support\n"
1701
           "  A = Audio input/output\n"
1702
           "  V = Video input/output\n"
1703
           "  N = Dynamic number and/or type of input/output\n"
1704
           "  | = Source or sink filter\n");
1705
    while ((filter = av_filter_iterate(&opaque))) {
1706
        descr_cur = descr;
1707
        for (i = 0; i < 2; i++) {
1708
            if (i) {
1709
                *(descr_cur++) = '-';
1710
                *(descr_cur++) = '>';
1711
            }
1712
            pad = i ? filter->outputs : filter->inputs;
1713
            for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1714
                if (descr_cur >= descr + sizeof(descr) - 4)
1715
                    break;
1716
                *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1717
            }
1718
            if (!j)
1719
                *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1720
                                  ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1721
        }
1722
        *descr_cur = 0;
1723
        printf(" %c%c%c %-17s %-10s %s\n",
1724
               filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1725
               filter->flags & AVFILTER_FLAG_SLICE_THREADS    ? 'S' : '.',
1726
               filter->process_command                        ? 'C' : '.',
1727
               filter->name, descr, filter->description);
1728
    }
1729
#else
1730
    printf("No filters available: libavfilter disabled\n");
1731
#endif
1732
    return 0;
1733
}
1734
1735
int show_colors(void *optctx, const char *opt, const char *arg)
1736
{
1737
    const char *name;
1738
    const uint8_t *rgb;
1739
    int i;
1740
1741
    printf("%-32s #RRGGBB\n", "name");
1742
1743
    for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1744
        printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1745
1746
    return 0;
1747
}
1748
1749
1
int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1750
{
1751
1
    const AVPixFmtDescriptor *pix_desc = NULL;
1752
1753
1
    printf("Pixel formats:\n"
1754
           "I.... = Supported Input  format for conversion\n"
1755
           ".O... = Supported Output format for conversion\n"
1756
           "..H.. = Hardware accelerated format\n"
1757
           "...P. = Paletted format\n"
1758
           "....B = Bitstream format\n"
1759
           "FLAGS NAME            NB_COMPONENTS BITS_PER_PIXEL\n"
1760
           "-----\n");
1761
1762
#if !CONFIG_SWSCALE
1763
#   define sws_isSupportedInput(x)  0
1764
#   define sws_isSupportedOutput(x) 0
1765
#endif
1766
1767
197
    while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1768
196
        enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1769

1176
        printf("%c%c%c%c%c %-16s       %d            %2d\n",
1770
196
               sws_isSupportedInput (pix_fmt)              ? 'I' : '.',
1771
196
               sws_isSupportedOutput(pix_fmt)              ? 'O' : '.',
1772
196
               pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL   ? 'H' : '.',
1773
196
               pix_desc->flags & AV_PIX_FMT_FLAG_PAL       ? 'P' : '.',
1774
196
               pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1775
               pix_desc->name,
1776
196
               pix_desc->nb_components,
1777
               av_get_bits_per_pixel(pix_desc));
1778
    }
1779
1
    return 0;
1780
}
1781
1782
int show_layouts(void *optctx, const char *opt, const char *arg)
1783
{
1784
    int i = 0;
1785
    uint64_t layout, j;
1786
    const char *name, *descr;
1787
1788
    printf("Individual channels:\n"
1789
           "NAME           DESCRIPTION\n");
1790
    for (i = 0; i < 63; i++) {
1791
        name = av_get_channel_name((uint64_t)1 << i);
1792
        if (!name)
1793
            continue;
1794
        descr = av_get_channel_description((uint64_t)1 << i);
1795
        printf("%-14s %s\n", name, descr);
1796
    }
1797
    printf("\nStandard channel layouts:\n"
1798
           "NAME           DECOMPOSITION\n");
1799
    for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1800
        if (name) {
1801
            printf("%-14s ", name);
1802
            for (j = 1; j; j <<= 1)
1803
                if ((layout & j))
1804
                    printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1805
            printf("\n");
1806
        }
1807
    }
1808
    return 0;
1809
}
1810
1811
int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1812
{
1813
    int i;
1814
    char fmt_str[128];
1815
    for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1816
        printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1817
    return 0;
1818
}
1819
1820
static void show_help_codec(const char *name, int encoder)
1821
{
1822
    const AVCodecDescriptor *desc;
1823
    const AVCodec *codec;
1824
1825
    if (!name) {
1826
        av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1827
        return;
1828
    }
1829
1830
    codec = encoder ? avcodec_find_encoder_by_name(name) :
1831
                      avcodec_find_decoder_by_name(name);
1832
1833
    if (codec)
1834
        print_codec(codec);
1835
    else if ((desc = avcodec_descriptor_get_by_name(name))) {
1836
        int printed = 0;
1837
1838
        while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1839
            printed = 1;
1840
            print_codec(codec);
1841
        }
1842
1843
        if (!printed) {
1844
            av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1845
                   "but no %s for it are available. FFmpeg might need to be "
1846
                   "recompiled with additional external libraries.\n",
1847
                   name, encoder ? "encoders" : "decoders");
1848
        }
1849
    } else {
1850
        av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1851
               name);
1852
    }
1853
}
1854
1855
static void show_help_demuxer(const char *name)
1856
{
1857
    const AVInputFormat *fmt = av_find_input_format(name);
1858
1859
    if (!fmt) {
1860
        av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1861
        return;
1862
    }
1863
1864
    printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1865
1866
    if (fmt->extensions)
1867
        printf("    Common extensions: %s.\n", fmt->extensions);
1868
1869
    if (fmt->priv_class)
1870
        show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1871
}
1872
1873
static void show_help_protocol(const char *name)
1874
{
1875
    const AVClass *proto_class;
1876
1877
    if (!name) {
1878
        av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
1879
        return;
1880
    }
1881
1882
    proto_class = avio_protocol_get_class(name);
1883
    if (!proto_class) {
1884
        av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
1885
        return;
1886
    }
1887
1888
    show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
1889
}
1890
1891
static void show_help_muxer(const char *name)
1892
{
1893
    const AVCodecDescriptor *desc;
1894
    const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1895
1896
    if (!fmt) {
1897
        av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1898
        return;
1899
    }
1900
1901
    printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1902
1903
    if (fmt->extensions)
1904
        printf("    Common extensions: %s.\n", fmt->extensions);
1905
    if (fmt->mime_type)
1906
        printf("    Mime type: %s.\n", fmt->mime_type);
1907
    if (fmt->video_codec != AV_CODEC_ID_NONE &&
1908
        (desc = avcodec_descriptor_get(fmt->video_codec))) {
1909
        printf("    Default video codec: %s.\n", desc->name);
1910
    }
1911
    if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1912
        (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1913
        printf("    Default audio codec: %s.\n", desc->name);
1914
    }
1915
    if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1916
        (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1917
        printf("    Default subtitle codec: %s.\n", desc->name);
1918
    }
1919
1920
    if (fmt->priv_class)
1921
        show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1922
}
1923
1924
#if CONFIG_AVFILTER
1925
static void show_help_filter(const char *name)
1926
{
1927
#if CONFIG_AVFILTER
1928
    const AVFilter *f = avfilter_get_by_name(name);
1929
    int i, count;
1930
1931
    if (!name) {
1932
        av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1933
        return;
1934
    } else if (!f) {
1935
        av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1936
        return;
1937
    }
1938
1939
    printf("Filter %s\n", f->name);
1940
    if (f->description)
1941
        printf("  %s\n", f->description);
1942
1943
    if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1944
        printf("    slice threading supported\n");
1945
1946
    printf("    Inputs:\n");
1947
    count = avfilter_pad_count(f->inputs);
1948
    for (i = 0; i < count; i++) {
1949
        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1950
               media_type_string(avfilter_pad_get_type(f->inputs, i)));
1951
    }
1952
    if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1953
        printf("        dynamic (depending on the options)\n");
1954
    else if (!count)
1955
        printf("        none (source filter)\n");
1956
1957
    printf("    Outputs:\n");
1958
    count = avfilter_pad_count(f->outputs);
1959
    for (i = 0; i < count; i++) {
1960
        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1961
               media_type_string(avfilter_pad_get_type(f->outputs, i)));
1962
    }
1963
    if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1964
        printf("        dynamic (depending on the options)\n");
1965
    else if (!count)
1966
        printf("        none (sink filter)\n");
1967
1968
    if (f->priv_class)
1969
        show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1970
                                          AV_OPT_FLAG_AUDIO_PARAM);
1971
    if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1972
        printf("This filter has support for timeline through the 'enable' option.\n");
1973
#else
1974
    av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1975
           "can not to satisfy request\n");
1976
#endif
1977
}
1978
#endif
1979
1980
static void show_help_bsf(const char *name)
1981
{
1982
    const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
1983
1984
    if (!name) {
1985
        av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
1986
        return;
1987
    } else if (!bsf) {
1988
        av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
1989
        return;
1990
    }
1991
1992
    printf("Bit stream filter %s\n", bsf->name);
1993
    PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
1994
                          AV_CODEC_ID_NONE, GET_CODEC_NAME);
1995
    if (bsf->priv_class)
1996
        show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
1997
}
1998
1999
int show_help(void *optctx, const char *opt, const char *arg)
2000
{
2001
    char *topic, *par;
2002
    av_log_set_callback(log_callback_help);
2003
2004
    topic = av_strdup(arg ? arg : "");
2005
    if (!topic)
2006
        return AVERROR(ENOMEM);
2007
    par = strchr(topic, '=');
2008
    if (par)
2009
        *par++ = 0;
2010
2011
    if (!*topic) {
2012
        show_help_default(topic, par);
2013
    } else if (!strcmp(topic, "decoder")) {
2014
        show_help_codec(par, 0);
2015
    } else if (!strcmp(topic, "encoder")) {
2016
        show_help_codec(par, 1);
2017
    } else if (!strcmp(topic, "demuxer")) {
2018
        show_help_demuxer(par);
2019
    } else if (!strcmp(topic, "muxer")) {
2020
        show_help_muxer(par);
2021
    } else if (!strcmp(topic, "protocol")) {
2022
        show_help_protocol(par);
2023
#if CONFIG_AVFILTER
2024
    } else if (!strcmp(topic, "filter")) {
2025
        show_help_filter(par);
2026
#endif
2027
    } else if (!strcmp(topic, "bsf")) {
2028
        show_help_bsf(par);
2029
    } else {
2030
        show_help_default(topic, par);
2031
    }
2032
2033
    av_freep(&topic);
2034
    return 0;
2035
}
2036
2037
int read_yesno(void)
2038
{
2039
    int c = getchar();
2040
    int yesno = (av_toupper(c) == 'Y');
2041
2042
    while (c != '\n' && c != EOF)
2043
        c = getchar();
2044
2045
    return yesno;
2046
}
2047
2048
FILE *get_preset_file(char *filename, size_t filename_size,
2049
                      const char *preset_name, int is_path,
2050
                      const char *codec_name)
2051
{
2052
    FILE *f = NULL;
2053
    int i;
2054
    const char *base[3] = { getenv("FFMPEG_DATADIR"),
2055
                            getenv("HOME"),
2056
                            FFMPEG_DATADIR, };
2057
2058
    if (is_path) {
2059
        av_strlcpy(filename, preset_name, filename_size);
2060
        f = fopen(filename, "r");
2061
    } else {
2062
#if HAVE_GETMODULEHANDLE && defined(_WIN32)
2063
        char datadir[MAX_PATH], *ls;
2064
        base[2] = NULL;
2065
2066
        if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
2067
        {
2068
            for (ls = datadir; ls < datadir + strlen(datadir); ls++)
2069
                if (*ls == '\\') *ls = '/';
2070
2071
            if (ls = strrchr(datadir, '/'))
2072
            {
2073
                *ls = 0;
2074
                strncat(datadir, "/ffpresets",  sizeof(datadir) - 1 - strlen(datadir));
2075
                base[2] = datadir;
2076
            }
2077
        }
2078
#endif
2079
        for (i = 0; i < 3 && !f; i++) {
2080
            if (!base[i])
2081
                continue;
2082
            snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
2083
                     i != 1 ? "" : "/.ffmpeg", preset_name);
2084
            f = fopen(filename, "r");
2085
            if (!f && codec_name) {
2086
                snprintf(filename, filename_size,
2087
                         "%s%s/%s-%s.ffpreset",
2088
                         base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
2089
                         preset_name);
2090
                f = fopen(filename, "r");
2091
            }
2092
        }
2093
    }
2094
2095
    return f;
2096
}
2097
2098
24157
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
2099
{
2100
24157
    int ret = avformat_match_stream_specifier(s, st, spec);
2101
24157
    if (ret < 0)
2102
        av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
2103
24157
    return ret;
2104
}
2105
2106
18582
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
2107
                                AVFormatContext *s, AVStream *st, AVCodec *codec)
2108
{
2109
18582
    AVDictionary    *ret = NULL;
2110
18582
    AVDictionaryEntry *t = NULL;
2111
37164
    int            flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
2112
18582
                                      : AV_OPT_FLAG_DECODING_PARAM;
2113
18582
    char          prefix = 0;
2114
18582
    const AVClass    *cc = avcodec_get_class();
2115
2116
18582
    if (!codec)
2117
6599
        codec            = s->oformat ? avcodec_find_encoder(codec_id)
2118
6599
                                      : avcodec_find_decoder(codec_id);
2119
2120

18582
    switch (st->codecpar->codec_type) {
2121
14392
    case AVMEDIA_TYPE_VIDEO:
2122
14392
        prefix  = 'v';
2123
14392
        flags  |= AV_OPT_FLAG_VIDEO_PARAM;
2124
14392
        break;
2125
3951
    case AVMEDIA_TYPE_AUDIO:
2126
3951
        prefix  = 'a';
2127
3951
        flags  |= AV_OPT_FLAG_AUDIO_PARAM;
2128
3951
        break;
2129
127
    case AVMEDIA_TYPE_SUBTITLE:
2130
127
        prefix  = 's';
2131
127
        flags  |= AV_OPT_FLAG_SUBTITLE_PARAM;
2132
127
        break;
2133
    }
2134
2135
71251
    while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2136
52669
        char *p = strchr(t->key, ':');
2137
2138
        /* check stream specification in opt name */
2139
52669
        if (p)
2140
227
            switch (check_stream_specifier(s, st, p + 1)) {
2141
185
            case  1: *p = 0; break;
2142
42
            case  0:         continue;
2143
            default:         exit_program(1);
2144
            }
2145
2146

52627
        if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2147
1202
            !codec ||
2148

1555
            (codec->priv_class &&
2149
353
             av_opt_find(&codec->priv_class, t->key, NULL, flags,
2150
                         AV_OPT_SEARCH_FAKE_OBJ)))
2151
51613
            av_dict_set(&ret, t->key, t->value, 0);
2152

1015
        else if (t->key[0] == prefix &&
2153
1
                 av_opt_find(&cc, t->key + 1, NULL, flags,
2154
                             AV_OPT_SEARCH_FAKE_OBJ))
2155
1
            av_dict_set(&ret, t->key + 1, t->value, 0);
2156
2157
52627
        if (p)
2158
185
            *p = ':';
2159
    }
2160
18582
    return ret;
2161
}
2162
2163
5971
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2164
                                           AVDictionary *codec_opts)
2165
{
2166
    int i;
2167
    AVDictionary **opts;
2168
2169
5971
    if (!s->nb_streams)
2170
63
        return NULL;
2171
5908
    opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2172
5908
    if (!opts) {
2173
        av_log(NULL, AV_LOG_ERROR,
2174
               "Could not alloc memory for stream options.\n");
2175
        return NULL;
2176
    }
2177
12142
    for (i = 0; i < s->nb_streams; i++)
2178
6234
        opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
2179
6234
                                    s, s->streams[i], NULL);
2180
5908
    return opts;
2181
}
2182
2183
136684
void *grow_array(void *array, int elem_size, int *size, int new_size)
2184
{
2185
136684
    if (new_size >= INT_MAX / elem_size) {
2186
        av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2187
        exit_program(1);
2188
    }
2189
136684
    if (*size < new_size) {
2190
136684
        uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2191
136684
        if (!tmp) {
2192
            av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2193
            exit_program(1);
2194
        }
2195
136684
        memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2196
136684
        *size = new_size;
2197
136684
        return tmp;
2198
    }
2199
    return array;
2200
}
2201
2202
4607
double get_rotation(AVStream *st)
2203
{
2204
4607
    uint8_t* displaymatrix = av_stream_get_side_data(st,
2205
                                                     AV_PKT_DATA_DISPLAYMATRIX, NULL);
2206
4607
    double theta = 0;
2207
4607
    if (displaymatrix)
2208
        theta = -av_display_rotation_get((int32_t*) displaymatrix);
2209
2210
4607
    theta -= 360*floor(theta/360 + 0.9/360);
2211
2212
4607
    if (fabs(theta - 90*round(theta/90)) > 2)
2213
        av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2214
               "If you want to help, upload a sample "
2215
               "of this file to ftp://upload.ffmpeg.org/incoming/ "
2216
               "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2217
2218
4607
    return theta;
2219
}
2220
2221
#if CONFIG_AVDEVICE
2222
static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2223
{
2224
    int ret, i;
2225
    AVDeviceInfoList *device_list = NULL;
2226
2227
    if (!fmt || !fmt->priv_class  || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2228
        return AVERROR(EINVAL);
2229
2230
    printf("Auto-detected sources for %s:\n", fmt->name);
2231
    if (!fmt->get_device_list) {
2232
        ret = AVERROR(ENOSYS);
2233
        printf("Cannot list sources. Not implemented.\n");
2234
        goto fail;
2235
    }
2236
2237
    if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2238
        printf("Cannot list sources.\n");
2239
        goto fail;
2240
    }
2241
2242
    for (i = 0; i < device_list->nb_devices; i++) {
2243
        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2244
               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2245
    }
2246
2247
  fail:
2248
    avdevice_free_list_devices(&device_list);
2249
    return ret;
2250
}
2251
2252
static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2253
{
2254
    int ret, i;
2255
    AVDeviceInfoList *device_list = NULL;
2256
2257
    if (!fmt || !fmt->priv_class  || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2258
        return AVERROR(EINVAL);
2259
2260
    printf("Auto-detected sinks for %s:\n", fmt->name);
2261
    if (!fmt->get_device_list) {
2262
        ret = AVERROR(ENOSYS);
2263
        printf("Cannot list sinks. Not implemented.\n");
2264
        goto fail;
2265
    }
2266
2267
    if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2268
        printf("Cannot list sinks.\n");
2269
        goto fail;
2270
    }
2271
2272
    for (i = 0; i < device_list->nb_devices; i++) {
2273
        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2274
               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2275
    }
2276
2277
  fail:
2278
    avdevice_free_list_devices(&device_list);
2279
    return ret;
2280
}
2281
2282
static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2283
{
2284
    int ret;
2285
    if (arg) {
2286
        char *opts_str = NULL;
2287
        av_assert0(dev && opts);
2288
        *dev = av_strdup(arg);
2289
        if (!*dev)
2290
            return AVERROR(ENOMEM);
2291
        if ((opts_str = strchr(*dev, ','))) {
2292
            *(opts_str++) = '\0';
2293
            if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2294
                av_freep(dev);
2295
                return ret;
2296
            }
2297
        }
2298
    } else
2299
        printf("\nDevice name is not provided.\n"
2300
                "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2301
    return 0;
2302
}
2303
2304
int show_sources(void *optctx, const char *opt, const char *arg)
2305
{
2306
    AVInputFormat *fmt = NULL;
2307
    char *dev = NULL;
2308
    AVDictionary *opts = NULL;
2309
    int ret = 0;
2310
    int error_level = av_log_get_level();
2311
2312
    av_log_set_level(AV_LOG_ERROR);
2313
2314
    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2315
        goto fail;
2316
2317
    do {
2318
        fmt = av_input_audio_device_next(fmt);
2319
        if (fmt) {
2320
            if (!strcmp(fmt->name, "lavfi"))
2321
                continue; //it's pointless to probe lavfi
2322
            if (dev && !av_match_name(dev, fmt->name))
2323
                continue;
2324
            print_device_sources(fmt, opts);
2325
        }
2326
    } while (fmt);
2327
    do {
2328
        fmt = av_input_video_device_next(fmt);
2329
        if (fmt) {
2330
            if (dev && !av_match_name(dev, fmt->name))
2331
                continue;
2332
            print_device_sources(fmt, opts);
2333
        }
2334
    } while (fmt);
2335
  fail:
2336
    av_dict_free(&opts);
2337
    av_free(dev);
2338
    av_log_set_level(error_level);
2339
    return ret;
2340
}
2341
2342
int show_sinks(void *optctx, const char *opt, const char *arg)
2343
{
2344
    AVOutputFormat *fmt = NULL;
2345
    char *dev = NULL;
2346
    AVDictionary *opts = NULL;
2347
    int ret = 0;
2348
    int error_level = av_log_get_level();
2349
2350
    av_log_set_level(AV_LOG_ERROR);
2351
2352
    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2353
        goto fail;
2354
2355
    do {
2356
        fmt = av_output_audio_device_next(fmt);
2357
        if (fmt) {
2358
            if (dev && !av_match_name(dev, fmt->name))
2359
                continue;
2360
            print_device_sinks(fmt, opts);
2361
        }
2362
    } while (fmt);
2363
    do {
2364
        fmt = av_output_video_device_next(fmt);
2365
        if (fmt) {
2366
            if (dev && !av_match_name(dev, fmt->name))
2367
                continue;
2368
            print_device_sinks(fmt, opts);
2369
        }
2370
    } while (fmt);
2371
  fail:
2372
    av_dict_free(&opts);
2373
    av_free(dev);
2374
    av_log_set_level(error_level);
2375
    return ret;
2376
}
2377
2378
#endif