GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/fftools/cmdutils.c Lines: 441 1214 36.3 %
Date: 2019-11-18 18:00:01 Branches: 334 1050 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 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
17591
void init_opts(void)
86
{
87
17591
    av_dict_set(&sws_dict, "flags", "bicubic", 0);
88
17591
}
89
90
11727
void uninit_opts(void)
91
{
92
11727
    av_dict_free(&swr_opts);
93
11727
    av_dict_free(&sws_dict);
94
11727
    av_dict_free(&format_opts);
95
11727
    av_dict_free(&codec_opts);
96
11727
    av_dict_free(&resample_opts);
97
11727
}
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
5898
void init_dynload(void)
121
{
122
#ifdef _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
5898
}
128
129
static void (*program_exit)(int ret);
130
131
5898
void register_exit(void (*cb)(int ret))
132
{
133
5898
    program_exit = cb;
134
5898
}
135
136
5831
void exit_program(int ret)
137
{
138
5831
    if (program_exit)
139
5831
        program_exit(ret);
140
141
5831
    exit(ret);
142
}
143
144
20159
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
20159
    double d = av_strtod(numstr, &tail);
150
20159
    if (*tail)
151
        error = "Expected number for %s but found: %s\n";
152

20159
    else if (d < min || d > max)
153
        error = "The value for %s was %s which is not within %f - %f\n";
154

20159
    else if (type == OPT_INT64 && (int64_t)d != d)
155
        error = "Expected int64 for %s but found %s\n";
156

20159
    else if (type == OPT_INT && (int)d != d)
157
        error = "Expected int for %s but found %s\n";
158
    else
159
20159
        return d;
160
    av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
161
    exit_program(1);
162
    return 0;
163
}
164
165
151
int64_t parse_time_or_die(const char *context, const char *timestr,
166
                          int is_duration)
167
{
168
    int64_t us;
169
151
    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
151
    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[64];
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
794408
static const OptionDef *find_option(const OptionDef *po, const char *name)
219
{
220
794408
    const char *p = strchr(name, ':');
221
794408
    int len = p ? p - name : strlen(name);
222
223
106972198
    while (po->name) {
224

106511345
        if (!strncmp(name, po->name, len) && strlen(po->name) == len)
225
333555
            break;
226
106177790
        po++;
227
    }
228
794408
    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
5898
static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
290
{
291
    /* nothing to do */
292
5898
}
293
#endif /* HAVE_COMMANDLINETOARGVW */
294
295
61357
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
122714
    void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
301
61357
                (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
302
    int *dstcount;
303
304
61357
    if (po->flags & OPT_SPEC) {
305
23479
        SpecifierOpt **so = dst;
306
23479
        char *p = strchr(opt, ':');
307
        char *str;
308
309
23479
        dstcount = (int *)(so + 1);
310
23479
        *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
311
23479
        str = av_strdup(p ? p + 1 : "");
312
23479
        if (!str)
313
            return AVERROR(ENOMEM);
314
23479
        (*so)[*dstcount - 1].specifier = str;
315
23479
        dst = &(*so)[*dstcount - 1].u;
316
    }
317
318
61357
    if (po->flags & OPT_STRING) {
319
        char *str;
320
27509
        str = av_strdup(arg);
321
27509
        av_freep(dst);
322
27509
        if (!str)
323
            return AVERROR(ENOMEM);
324
27509
        *(char **)dst = str;
325

33848
    } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
326
15280
        *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
327
18568
    } else if (po->flags & OPT_INT64) {
328
4151
        *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
329
14417
    } else if (po->flags & OPT_TIME) {
330
149
        *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
331
14268
    } else if (po->flags & OPT_FLOAT) {
332
1
        *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
333
14267
    } else if (po->flags & OPT_DOUBLE) {
334
254
        *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
335
14013
    } else if (po->u.func_arg) {
336
14013
        int ret = po->u.func_arg(optctx, opt, arg);
337
14013
        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
61357
    if (po->flags & OPT_EXIT)
345
1
        exit_program(0);
346
347
61356
    return 0;
348
}
349
350
7189
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
7189
    po = find_option(options, opt);
357

7189
    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
7189
    } else if (po->flags & OPT_BOOL)
363
52
        arg = "1";
364
365
7189
    if (!po->name)
366
11
        po = find_option(options, "default");
367
7189
    if (!po->name) {
368
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
369
        return AVERROR(EINVAL);
370
    }
371

7189
    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
7189
    ret = write_option(optctx, po, opt, arg);
377
7189
    if (ret < 0)
378
        return ret;
379
380
7189
    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
413
    while (optindex < argc) {
395
346
        opt = argv[optindex++];
396
397

346
        if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
398

285
            if (opt[1] == '-' && opt[2] == '\0') {
399
                handleoptions = 0;
400
                continue;
401
            }
402
285
            opt++;
403
404
285
            if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
405
                exit_program(1);
406
285
            optindex += ret;
407
        } else {
408
61
            if (parse_arg_function)
409
61
                parse_arg_function(optctx, opt);
410
        }
411
    }
412
67
}
413
414
17523
int parse_optgroup(void *optctx, OptionGroup *g)
415
{
416
    int i, ret;
417
418
17523
    av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
419
17523
           g->group_def->name, g->arg);
420
421
71690
    for (i = 0; i < g->nb_opts; i++) {
422
54168
        Option *o = &g->opts[i];
423
424
54168
        if (g->group_def->flags &&
425
34374
            !(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
54168
        av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
435
54168
               o->key, o->opt->help, o->val);
436
437
54168
        ret = write_option(optctx, o->opt, o->key, o->val);
438
54167
        if (ret < 0)
439
            return ret;
440
    }
441
442
17522
    av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
443
444
17522
    return 0;
445
}
446
447
29490
int locate_option(int argc, char **argv, const OptionDef *options,
448
                  const char *optname)
449
{
450
    const OptionDef *po;
451
    int i;
452
453
652864
    for (i = 1; i < argc; i++) {
454
623417
        const char *cur_opt = argv[i];
455
456
623417
        if (*cur_opt++ != '-')
457
18528
            continue;
458
459
604889
        po = find_option(options, cur_opt);
460

604889
        if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
461
58055
            po = find_option(options, cur_opt + 2);
462
463

604889
        if ((!po->name && !strcmp(cur_opt, optname)) ||
464

604889
             (po->name && !strcmp(optname, po->name)))
465
43
            return i;
466
467

604846
        if (!po->name || po->flags & HAS_ARG)
468
528796
            i++;
469
    }
470
29447
    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
5898
static void check_options(const OptionDef *po)
498
{
499
1042273
    while (po->name) {
500
1036375
        if (po->flags & OPT_PERFILE)
501
186592
            av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
502
1036375
        po++;
503
    }
504
5898
}
505
506
5898
void parse_loglevel(int argc, char **argv, const OptionDef *options)
507
{
508
5898
    int idx = locate_option(argc, argv, options, "loglevel");
509
    const char *env;
510
511
5898
    check_options(options);
512
513
5898
    if (!idx)
514
5898
        idx = locate_option(argc, argv, options, "v");
515

5898
    if (idx && argv[idx + 1])
516
43
        opt_loglevel(NULL, "loglevel", argv[idx + 1]);
517
5898
    idx = locate_option(argc, argv, options, "report");
518

5898
    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
5898
    idx = locate_option(argc, argv, options, "hide_banner");
531
5898
    if (idx)
532
        hide_banner = 1;
533
5898
}
534
535
253663
static const AVOption *opt_find(void *obj, const char *name, const char *unit,
536
                            int opt_flags, int search_flags)
537
{
538
253663
    const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
539

253663
    if(o && !o->flags)
540
2
        return NULL;
541
253661
    return o;
542
}
543
544
#define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
545
70108
int opt_default(void *optctx, const char *opt, const char *arg)
546
{
547
    const AVOption *o;
548
70108
    int consumed = 0;
549
    char opt_stripped[128];
550
    const char *p;
551
70108
    const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
552
#if CONFIG_AVRESAMPLE
553
70108
    const AVClass *rc = avresample_get_class();
554
#endif
555
#if CONFIG_SWSCALE
556
70108
    const AVClass *sc = sws_get_class();
557
#endif
558
#if CONFIG_SWRESAMPLE
559
70108
    const AVClass *swr_class = swr_get_class();
560
#endif
561
562

70108
    if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
563
        av_log_set_level(AV_LOG_DEBUG);
564
565
70108
    if (!(p = strchr(opt, ':')))
566
70108
        p = opt + strlen(opt);
567
70108
    av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
568
569
70108
    if ((o = opt_find(&cc, opt_stripped, NULL, 0,
570
31605
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
571


41684
        ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
572
10079
         (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
573

38504
        av_dict_set(&codec_opts, opt, arg, FLAGS);
574
38504
        consumed = 1;
575
    }
576
70108
    if ((o = opt_find(&fc, opt, NULL, 0,
577
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
578

10020
        av_dict_set(&format_opts, opt, arg, FLAGS);
579
10020
        if (consumed)
580
70
            av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
581
10020
        consumed = 1;
582
    }
583
#if CONFIG_SWSCALE
584

70108
    if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
585
                         AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
586
10048
        struct SwsContext *sws = sws_alloc_context();
587
10048
        int ret = av_opt_set(sws, opt, arg, 0);
588
10048
        sws_freeContext(sws);
589

10048
        if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
590

10048
            !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
591

10048
            !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
10048
        if (ret < 0) {
596
            av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
597
            return ret;
598
        }
599
600

10048
        av_dict_set(&sws_dict, opt, arg, FLAGS);
601
602
10048
        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

70108
    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
70108
    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
70108
    if (consumed)
633
58502
        return 0;
634
11606
    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
118520
static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
643
                                 const char *opt)
644
{
645
    int i;
646
647
349698
    for (i = 0; i < nb_groups; i++) {
648
237040
        const OptionGroupDef *p = &groups[i];
649

237040
        if (p->sep && !strcmp(p->sep, opt))
650
5862
            return i;
651
    }
652
653
112658
    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
11693
static void finish_group(OptionParseContext *octx, int group_idx,
663
                         const char *arg)
664
{
665
11693
    OptionGroupList *l = &octx->groups[group_idx];
666
    OptionGroup *g;
667
668
11693
    GROW_ARRAY(l->groups, l->nb_groups);
669
11693
    g = &l->groups[l->nb_groups - 1];
670
671
11693
    *g             = octx->cur_group;
672
11693
    g->arg         = arg;
673
11693
    g->group_def   = l->group_def;
674
11693
    g->sws_dict    = sws_dict;
675
11693
    g->swr_opts    = swr_opts;
676
11693
    g->codec_opts  = codec_opts;
677
11693
    g->format_opts = format_opts;
678
11693
    g->resample_opts = resample_opts;
679
680
11693
    codec_opts  = NULL;
681
11693
    format_opts = NULL;
682
11693
    resample_opts = NULL;
683
11693
    sws_dict    = NULL;
684
11693
    swr_opts    = NULL;
685
11693
    init_opts();
686
687
11693
    memset(&octx->cur_group, 0, sizeof(octx->cur_group));
688
11693
}
689
690
/*
691
 * Add an option instance to currently parsed group.
692
 */
693
54169
static void add_opt(OptionParseContext *octx, const OptionDef *opt,
694
                    const char *key, const char *val)
695
{
696
54169
    int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
697
54169
    OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
698
699
54169
    GROW_ARRAY(g->opts, g->nb_opts);
700
54169
    g->opts[g->nb_opts - 1].opt = opt;
701
54169
    g->opts[g->nb_opts - 1].key = key;
702
54169
    g->opts[g->nb_opts - 1].val = val;
703
54169
}
704
705
5831
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
5831
    memset(octx, 0, sizeof(*octx));
712
713
5831
    octx->nb_groups = nb_groups;
714
5831
    octx->groups    = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
715
5831
    if (!octx->groups)
716
        exit_program(1);
717
718
17493
    for (i = 0; i < octx->nb_groups; i++)
719
11662
        octx->groups[i].group_def = &groups[i];
720
721
5831
    octx->global_opts.group_def = &global_group;
722
5831
    octx->global_opts.arg       = "";
723
724
5831
    init_opts();
725
5831
}
726
727
5829
void uninit_parse_context(OptionParseContext *octx)
728
{
729
    int i, j;
730
731
17487
    for (i = 0; i < octx->nb_groups; i++) {
732
11658
        OptionGroupList *l = &octx->groups[i];
733
734
23349
        for (j = 0; j < l->nb_groups; j++) {
735
11691
            av_freep(&l->groups[j].opts);
736
11691
            av_dict_free(&l->groups[j].codec_opts);
737
11691
            av_dict_free(&l->groups[j].format_opts);
738
11691
            av_dict_free(&l->groups[j].resample_opts);
739
740
11691
            av_dict_free(&l->groups[j].sws_dict);
741
11691
            av_dict_free(&l->groups[j].swr_opts);
742
        }
743
11658
        av_freep(&l->groups);
744
    }
745
5829
    av_freep(&octx->groups);
746
747
5829
    av_freep(&octx->cur_group.opts);
748
5829
    av_freep(&octx->global_opts.opts);
749
750
5829
    uninit_opts();
751
5829
}
752
753
5831
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
754
                      const OptionDef *options,
755
                      const OptionGroupDef *groups, int nb_groups)
756
{
757
5831
    int optindex = 1;
758
5831
    int dashdash = -2;
759
760
    /* perform system-dependent conversions for arguments list */
761
5831
    prepare_app_arguments(&argc, &argv);
762
763
5831
    init_parse_context(octx, groups, nb_groups);
764
5831
    av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
765
766
130182
    while (optindex < argc) {
767
124351
        const char *opt = argv[optindex++], *arg;
768
        const OptionDef *po;
769
        int ret;
770
771
124351
        av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
772
773

124351
        if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
774
            dashdash = optindex;
775
            continue;
776
        }
777
        /* unnamed group separators, e.g. output filename */
778

124351
        if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
779
5831
            finish_group(octx, 0, opt);
780
5831
            av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
781
5831
            continue;
782
        }
783
118520
        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
118520
        if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
796
5862
            GET_ARG(arg);
797
5862
            finish_group(octx, ret, arg);
798
5862
            av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
799
5862
                   groups[ret].name, arg);
800
5862
            continue;
801
        }
802
803
        /* normal options */
804
112658
        po = find_option(options, opt);
805
112658
        if (po->name) {
806
42563
            if (po->flags & OPT_EXIT) {
807
                /* optional argument, e.g. -h */
808
1
                arg = argv[optindex++];
809
42562
            } else if (po->flags & HAS_ARG) {
810
39068
                GET_ARG(arg);
811
            } else {
812
3494
                arg = "1";
813
            }
814
815
42563
            add_opt(octx, po, opt, arg);
816
42563
            av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
817
                   "argument '%s'.\n", po->name, po->help, arg);
818
42563
            continue;
819
        }
820
821
        /* AVOptions */
822
70095
        if (argv[optindex]) {
823
70095
            ret = opt_default(NULL, opt, argv[optindex]);
824
70095
            if (ret >= 0) {
825
58489
                av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
826
58489
                       "argument '%s'.\n", opt, argv[optindex]);
827
58489
                optindex++;
828
58489
                continue;
829
11606
            } 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

23212
        if (opt[0] == 'n' && opt[1] == 'o' &&
838
11606
            (po = find_option(options, opt + 2)) &&
839

11606
            po->name && po->flags & OPT_BOOL) {
840
11606
            add_opt(octx, po, opt, "0");
841
11606
            av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
842
                   "argument 0.\n", po->name, po->help);
843
11606
            continue;
844
        }
845
846
        av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
847
        return AVERROR_OPTION_NOT_FOUND;
848
    }
849
850


5831
    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
5831
    av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
855
856
5831
    return 0;
857
}
858
859
5800
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
860
{
861
    int ret;
862
5800
    unsigned flags = av_get_cpu_flags();
863
864
5800
    if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
865
        return ret;
866
867
5800
    av_force_cpu_flags(flags);
868
5800
    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
11796
static void print_all_libs_info(int flags, int level)
1135
{
1136


11796
    PRINT_LIB_INFO(avutil,     AVUTIL,     flags, level);
1137


11796
    PRINT_LIB_INFO(avcodec,    AVCODEC,    flags, level);
1138


11796
    PRINT_LIB_INFO(avformat,   AVFORMAT,   flags, level);
1139


11796
    PRINT_LIB_INFO(avdevice,   AVDEVICE,   flags, level);
1140


11796
    PRINT_LIB_INFO(avfilter,   AVFILTER,   flags, level);
1141


11796
    PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1142


11796
    PRINT_LIB_INFO(swscale,    SWSCALE,    flags, level);
1143


11796
    PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1144


11796
    PRINT_LIB_INFO(postproc,   POSTPROC,   flags, level);
1145
11796
}
1146
1147
5898
static void print_program_info(int flags, int level)
1148
{
1149
5898
    const char *indent = flags & INDENT? "  " : "";
1150
1151
5898
    av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1152
5898
    if (flags & SHOW_COPYRIGHT)
1153
5898
        av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1154
               program_birth_year, CONFIG_THIS_YEAR);
1155
5898
    av_log(NULL, level, "\n");
1156
5898
    av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1157
1158
5898
    av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1159
5898
}
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
5898
void show_banner(int argc, char **argv, const OptionDef *options)
1188
{
1189
5898
    int idx = locate_option(argc, argv, options, "version");
1190

5898
    if (hide_banner || idx)
1191
        return;
1192
1193
5898
    print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1194
5898
    print_all_libs_info(INDENT|SHOW_CONFIG,  AV_LOG_INFO);
1195
5898
    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
194
    while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1768
193
        enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1769

1158
        printf("%c%c%c%c%c %-16s       %d            %2d\n",
1770
193
               sws_isSupportedInput (pix_fmt)              ? 'I' : '.',
1771
193
               sws_isSupportedOutput(pix_fmt)              ? 'O' : '.',
1772
193
               pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL   ? 'H' : '.',
1773
193
               pix_desc->flags & AV_PIX_FMT_FLAG_PAL       ? 'P' : '.',
1774
193
               pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1775
               pix_desc->name,
1776
193
               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_muxer(const char *name)
1874
{
1875
    const AVCodecDescriptor *desc;
1876
    const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1877
1878
    if (!fmt) {
1879
        av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1880
        return;
1881
    }
1882
1883
    printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1884
1885
    if (fmt->extensions)
1886
        printf("    Common extensions: %s.\n", fmt->extensions);
1887
    if (fmt->mime_type)
1888
        printf("    Mime type: %s.\n", fmt->mime_type);
1889
    if (fmt->video_codec != AV_CODEC_ID_NONE &&
1890
        (desc = avcodec_descriptor_get(fmt->video_codec))) {
1891
        printf("    Default video codec: %s.\n", desc->name);
1892
    }
1893
    if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1894
        (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1895
        printf("    Default audio codec: %s.\n", desc->name);
1896
    }
1897
    if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1898
        (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1899
        printf("    Default subtitle codec: %s.\n", desc->name);
1900
    }
1901
1902
    if (fmt->priv_class)
1903
        show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1904
}
1905
1906
#if CONFIG_AVFILTER
1907
static void show_help_filter(const char *name)
1908
{
1909
#if CONFIG_AVFILTER
1910
    const AVFilter *f = avfilter_get_by_name(name);
1911
    int i, count;
1912
1913
    if (!name) {
1914
        av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1915
        return;
1916
    } else if (!f) {
1917
        av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1918
        return;
1919
    }
1920
1921
    printf("Filter %s\n", f->name);
1922
    if (f->description)
1923
        printf("  %s\n", f->description);
1924
1925
    if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1926
        printf("    slice threading supported\n");
1927
1928
    printf("    Inputs:\n");
1929
    count = avfilter_pad_count(f->inputs);
1930
    for (i = 0; i < count; i++) {
1931
        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1932
               media_type_string(avfilter_pad_get_type(f->inputs, i)));
1933
    }
1934
    if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1935
        printf("        dynamic (depending on the options)\n");
1936
    else if (!count)
1937
        printf("        none (source filter)\n");
1938
1939
    printf("    Outputs:\n");
1940
    count = avfilter_pad_count(f->outputs);
1941
    for (i = 0; i < count; i++) {
1942
        printf("       #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1943
               media_type_string(avfilter_pad_get_type(f->outputs, i)));
1944
    }
1945
    if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1946
        printf("        dynamic (depending on the options)\n");
1947
    else if (!count)
1948
        printf("        none (sink filter)\n");
1949
1950
    if (f->priv_class)
1951
        show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1952
                                          AV_OPT_FLAG_AUDIO_PARAM);
1953
    if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1954
        printf("This filter has support for timeline through the 'enable' option.\n");
1955
#else
1956
    av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1957
           "can not to satisfy request\n");
1958
#endif
1959
}
1960
#endif
1961
1962
static void show_help_bsf(const char *name)
1963
{
1964
    const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
1965
1966
    if (!name) {
1967
        av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
1968
        return;
1969
    } else if (!bsf) {
1970
        av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
1971
        return;
1972
    }
1973
1974
    printf("Bit stream filter %s\n", bsf->name);
1975
    PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
1976
                          AV_CODEC_ID_NONE, GET_CODEC_NAME);
1977
    if (bsf->priv_class)
1978
        show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
1979
}
1980
1981
int show_help(void *optctx, const char *opt, const char *arg)
1982
{
1983
    char *topic, *par;
1984
    av_log_set_callback(log_callback_help);
1985
1986
    topic = av_strdup(arg ? arg : "");
1987
    if (!topic)
1988
        return AVERROR(ENOMEM);
1989
    par = strchr(topic, '=');
1990
    if (par)
1991
        *par++ = 0;
1992
1993
    if (!*topic) {
1994
        show_help_default(topic, par);
1995
    } else if (!strcmp(topic, "decoder")) {
1996
        show_help_codec(par, 0);
1997
    } else if (!strcmp(topic, "encoder")) {
1998
        show_help_codec(par, 1);
1999
    } else if (!strcmp(topic, "demuxer")) {
2000
        show_help_demuxer(par);
2001
    } else if (!strcmp(topic, "muxer")) {
2002
        show_help_muxer(par);
2003
#if CONFIG_AVFILTER
2004
    } else if (!strcmp(topic, "filter")) {
2005
        show_help_filter(par);
2006
#endif
2007
    } else if (!strcmp(topic, "bsf")) {
2008
        show_help_bsf(par);
2009
    } else {
2010
        show_help_default(topic, par);
2011
    }
2012
2013
    av_freep(&topic);
2014
    return 0;
2015
}
2016
2017
int read_yesno(void)
2018
{
2019
    int c = getchar();
2020
    int yesno = (av_toupper(c) == 'Y');
2021
2022
    while (c != '\n' && c != EOF)
2023
        c = getchar();
2024
2025
    return yesno;
2026
}
2027
2028
FILE *get_preset_file(char *filename, size_t filename_size,
2029
                      const char *preset_name, int is_path,
2030
                      const char *codec_name)
2031
{
2032
    FILE *f = NULL;
2033
    int i;
2034
    const char *base[3] = { getenv("FFMPEG_DATADIR"),
2035
                            getenv("HOME"),
2036
                            FFMPEG_DATADIR, };
2037
2038
    if (is_path) {
2039
        av_strlcpy(filename, preset_name, filename_size);
2040
        f = fopen(filename, "r");
2041
    } else {
2042
#ifdef _WIN32
2043
        char datadir[MAX_PATH], *ls;
2044
        base[2] = NULL;
2045
2046
        if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
2047
        {
2048
            for (ls = datadir; ls < datadir + strlen(datadir); ls++)
2049
                if (*ls == '\\') *ls = '/';
2050
2051
            if (ls = strrchr(datadir, '/'))
2052
            {
2053
                *ls = 0;
2054
                strncat(datadir, "/ffpresets",  sizeof(datadir) - 1 - strlen(datadir));
2055
                base[2] = datadir;
2056
            }
2057
        }
2058
#endif
2059
        for (i = 0; i < 3 && !f; i++) {
2060
            if (!base[i])
2061
                continue;
2062
            snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
2063
                     i != 1 ? "" : "/.ffmpeg", preset_name);
2064
            f = fopen(filename, "r");
2065
            if (!f && codec_name) {
2066
                snprintf(filename, filename_size,
2067
                         "%s%s/%s-%s.ffpreset",
2068
                         base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
2069
                         preset_name);
2070
                f = fopen(filename, "r");
2071
            }
2072
        }
2073
    }
2074
2075
    return f;
2076
}
2077
2078
24060
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
2079
{
2080
24060
    int ret = avformat_match_stream_specifier(s, st, spec);
2081
24060
    if (ret < 0)
2082
        av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
2083
24060
    return ret;
2084
}
2085
2086
18437
AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
2087
                                AVFormatContext *s, AVStream *st, AVCodec *codec)
2088
{
2089
18437
    AVDictionary    *ret = NULL;
2090
18437
    AVDictionaryEntry *t = NULL;
2091
36874
    int            flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
2092
18437
                                      : AV_OPT_FLAG_DECODING_PARAM;
2093
18437
    char          prefix = 0;
2094
18437
    const AVClass    *cc = avcodec_get_class();
2095
2096
18437
    if (!codec)
2097
6495
        codec            = s->oformat ? avcodec_find_encoder(codec_id)
2098
6495
                                      : avcodec_find_decoder(codec_id);
2099
2100

18437
    switch (st->codecpar->codec_type) {
2101
14309
    case AVMEDIA_TYPE_VIDEO:
2102
14309
        prefix  = 'v';
2103
14309
        flags  |= AV_OPT_FLAG_VIDEO_PARAM;
2104
14309
        break;
2105
3896
    case AVMEDIA_TYPE_AUDIO:
2106
3896
        prefix  = 'a';
2107
3896
        flags  |= AV_OPT_FLAG_AUDIO_PARAM;
2108
3896
        break;
2109
120
    case AVMEDIA_TYPE_SUBTITLE:
2110
120
        prefix  = 's';
2111
120
        flags  |= AV_OPT_FLAG_SUBTITLE_PARAM;
2112
120
        break;
2113
    }
2114
2115
70844
    while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2116
52407
        char *p = strchr(t->key, ':');
2117
2118
        /* check stream specification in opt name */
2119
52407
        if (p)
2120
227
            switch (check_stream_specifier(s, st, p + 1)) {
2121
185
            case  1: *p = 0; break;
2122
42
            case  0:         continue;
2123
            default:         exit_program(1);
2124
            }
2125
2126

52365
        if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2127
1174
            !codec ||
2128

1499
            (codec->priv_class &&
2129
325
             av_opt_find(&codec->priv_class, t->key, NULL, flags,
2130
                         AV_OPT_SEARCH_FAKE_OBJ)))
2131
51379
            av_dict_set(&ret, t->key, t->value, 0);
2132

987
        else if (t->key[0] == prefix &&
2133
1
                 av_opt_find(&cc, t->key + 1, NULL, flags,
2134
                             AV_OPT_SEARCH_FAKE_OBJ))
2135
1
            av_dict_set(&ret, t->key + 1, t->value, 0);
2136
2137
52365
        if (p)
2138
185
            *p = ':';
2139
    }
2140
18437
    return ret;
2141
}
2142
2143
5928
AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2144
                                           AVDictionary *codec_opts)
2145
{
2146
    int i;
2147
    AVDictionary **opts;
2148
2149
5928
    if (!s->nb_streams)
2150
63
        return NULL;
2151
5865
    opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2152
5865
    if (!opts) {
2153
        av_log(NULL, AV_LOG_ERROR,
2154
               "Could not alloc memory for stream options.\n");
2155
        return NULL;
2156
    }
2157
12051
    for (i = 0; i < s->nb_streams; i++)
2158
6186
        opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
2159
6186
                                    s, s->streams[i], NULL);
2160
5865
    return opts;
2161
}
2162
2163
135943
void *grow_array(void *array, int elem_size, int *size, int new_size)
2164
{
2165
135943
    if (new_size >= INT_MAX / elem_size) {
2166
        av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2167
        exit_program(1);
2168
    }
2169
135943
    if (*size < new_size) {
2170
135943
        uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2171
135943
        if (!tmp) {
2172
            av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2173
            exit_program(1);
2174
        }
2175
135943
        memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2176
135943
        *size = new_size;
2177
135943
        return tmp;
2178
    }
2179
    return array;
2180
}
2181
2182
4604
double get_rotation(AVStream *st)
2183
{
2184
4604
    uint8_t* displaymatrix = av_stream_get_side_data(st,
2185
                                                     AV_PKT_DATA_DISPLAYMATRIX, NULL);
2186
4604
    double theta = 0;
2187
4604
    if (displaymatrix)
2188
        theta = -av_display_rotation_get((int32_t*) displaymatrix);
2189
2190
4604
    theta -= 360*floor(theta/360 + 0.9/360);
2191
2192
4604
    if (fabs(theta - 90*round(theta/90)) > 2)
2193
        av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2194
               "If you want to help, upload a sample "
2195
               "of this file to ftp://upload.ffmpeg.org/incoming/ "
2196
               "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2197
2198
4604
    return theta;
2199
}
2200
2201
#if CONFIG_AVDEVICE
2202
static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2203
{
2204
    int ret, i;
2205
    AVDeviceInfoList *device_list = NULL;
2206
2207
    if (!fmt || !fmt->priv_class  || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2208
        return AVERROR(EINVAL);
2209
2210
    printf("Auto-detected sources for %s:\n", fmt->name);
2211
    if (!fmt->get_device_list) {
2212
        ret = AVERROR(ENOSYS);
2213
        printf("Cannot list sources. Not implemented.\n");
2214
        goto fail;
2215
    }
2216
2217
    if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2218
        printf("Cannot list sources.\n");
2219
        goto fail;
2220
    }
2221
2222
    for (i = 0; i < device_list->nb_devices; i++) {
2223
        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2224
               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2225
    }
2226
2227
  fail:
2228
    avdevice_free_list_devices(&device_list);
2229
    return ret;
2230
}
2231
2232
static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2233
{
2234
    int ret, i;
2235
    AVDeviceInfoList *device_list = NULL;
2236
2237
    if (!fmt || !fmt->priv_class  || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2238
        return AVERROR(EINVAL);
2239
2240
    printf("Auto-detected sinks for %s:\n", fmt->name);
2241
    if (!fmt->get_device_list) {
2242
        ret = AVERROR(ENOSYS);
2243
        printf("Cannot list sinks. Not implemented.\n");
2244
        goto fail;
2245
    }
2246
2247
    if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2248
        printf("Cannot list sinks.\n");
2249
        goto fail;
2250
    }
2251
2252
    for (i = 0; i < device_list->nb_devices; i++) {
2253
        printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2254
               device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2255
    }
2256
2257
  fail:
2258
    avdevice_free_list_devices(&device_list);
2259
    return ret;
2260
}
2261
2262
static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2263
{
2264
    int ret;
2265
    if (arg) {
2266
        char *opts_str = NULL;
2267
        av_assert0(dev && opts);
2268
        *dev = av_strdup(arg);
2269
        if (!*dev)
2270
            return AVERROR(ENOMEM);
2271
        if ((opts_str = strchr(*dev, ','))) {
2272
            *(opts_str++) = '\0';
2273
            if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2274
                av_freep(dev);
2275
                return ret;
2276
            }
2277
        }
2278
    } else
2279
        printf("\nDevice name is not provided.\n"
2280
                "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2281
    return 0;
2282
}
2283
2284
int show_sources(void *optctx, const char *opt, const char *arg)
2285
{
2286
    AVInputFormat *fmt = NULL;
2287
    char *dev = NULL;
2288
    AVDictionary *opts = NULL;
2289
    int ret = 0;
2290
    int error_level = av_log_get_level();
2291
2292
    av_log_set_level(AV_LOG_ERROR);
2293
2294
    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2295
        goto fail;
2296
2297
    do {
2298
        fmt = av_input_audio_device_next(fmt);
2299
        if (fmt) {
2300
            if (!strcmp(fmt->name, "lavfi"))
2301
                continue; //it's pointless to probe lavfi
2302
            if (dev && !av_match_name(dev, fmt->name))
2303
                continue;
2304
            print_device_sources(fmt, opts);
2305
        }
2306
    } while (fmt);
2307
    do {
2308
        fmt = av_input_video_device_next(fmt);
2309
        if (fmt) {
2310
            if (dev && !av_match_name(dev, fmt->name))
2311
                continue;
2312
            print_device_sources(fmt, opts);
2313
        }
2314
    } while (fmt);
2315
  fail:
2316
    av_dict_free(&opts);
2317
    av_free(dev);
2318
    av_log_set_level(error_level);
2319
    return ret;
2320
}
2321
2322
int show_sinks(void *optctx, const char *opt, const char *arg)
2323
{
2324
    AVOutputFormat *fmt = NULL;
2325
    char *dev = NULL;
2326
    AVDictionary *opts = NULL;
2327
    int ret = 0;
2328
    int error_level = av_log_get_level();
2329
2330
    av_log_set_level(AV_LOG_ERROR);
2331
2332
    if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2333
        goto fail;
2334
2335
    do {
2336
        fmt = av_output_audio_device_next(fmt);
2337
        if (fmt) {
2338
            if (dev && !av_match_name(dev, fmt->name))
2339
                continue;
2340
            print_device_sinks(fmt, opts);
2341
        }
2342
    } while (fmt);
2343
    do {
2344
        fmt = av_output_video_device_next(fmt);
2345
        if (fmt) {
2346
            if (dev && !av_match_name(dev, fmt->name))
2347
                continue;
2348
            print_device_sinks(fmt, opts);
2349
        }
2350
    } while (fmt);
2351
  fail:
2352
    av_dict_free(&opts);
2353
    av_free(dev);
2354
    av_log_set_level(error_level);
2355
    return ret;
2356
}
2357
2358
#endif