2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
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.
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.
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
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. */
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/avassert.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/bprint.h"
44 #include "libavutil/mathematics.h"
45 #include "libavutil/imgutils.h"
46 #include "libavutil/parseutils.h"
47 #include "libavutil/pixdesc.h"
48 #include "libavutil/eval.h"
49 #include "libavutil/dict.h"
50 #include "libavutil/opt.h"
51 #include "libavutil/cpu.h"
52 #include "libavutil/ffversion.h"
55 #include "libavformat/network.h"
57 #if HAVE_SYS_RESOURCE_H
59 #include <sys/resource.h>
62 static int init_report(const char *env
);
64 struct SwsContext
*sws_opts
;
65 AVDictionary
*swr_opts
;
66 AVDictionary
*format_opts
, *codec_opts
, *resample_opts
;
68 static FILE *report_file
;
69 static int report_file_level
= AV_LOG_DEBUG
;
76 sws_opts
= sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC
,
80 void uninit_opts(void)
83 sws_freeContext(sws_opts
);
87 av_dict_free(&swr_opts
);
88 av_dict_free(&format_opts
);
89 av_dict_free(&codec_opts
);
90 av_dict_free(&resample_opts
);
93 void log_callback_help(void *ptr
, int level
, const char *fmt
, va_list vl
)
95 vfprintf(stdout
, fmt
, vl
);
98 static void log_callback_report(void *ptr
, int level
, const char *fmt
, va_list vl
)
102 static int print_prefix
= 1;
105 av_log_default_callback(ptr
, level
, fmt
, vl
);
106 av_log_format_line(ptr
, level
, fmt
, vl2
, line
, sizeof(line
), &print_prefix
);
108 if (report_file_level
>= level
) {
109 fputs(line
, report_file
);
114 static void (*program_exit
)(int ret
);
116 void register_exit(void (*cb
)(int ret
))
121 void exit_program(int ret
)
129 double parse_number_or_die(const char *context
, const char *numstr
, int type
,
130 double min
, double max
)
134 double d
= av_strtod(numstr
, &tail
);
136 error
= "Expected number for %s but found: %s\n";
137 else if (d
< min
|| d
> max
)
138 error
= "The value for %s was %s which is not within %f - %f\n";
139 else if (type
== OPT_INT64
&& (int64_t)d
!= d
)
140 error
= "Expected int64 for %s but found %s\n";
141 else if (type
== OPT_INT
&& (int)d
!= d
)
142 error
= "Expected int for %s but found %s\n";
145 av_log(NULL
, AV_LOG_FATAL
, error
, context
, numstr
, min
, max
);
150 int64_t parse_time_or_die(const char *context
, const char *timestr
,
154 if (av_parse_time(&us
, timestr
, is_duration
) < 0) {
155 av_log(NULL
, AV_LOG_FATAL
, "Invalid %s specification for %s: %s\n",
156 is_duration
? "duration" : "date", context
, timestr
);
162 void show_help_options(const OptionDef
*options
, const char *msg
, int req_flags
,
163 int rej_flags
, int alt_flags
)
169 for (po
= options
; po
->name
; po
++) {
172 if (((po
->flags
& req_flags
) != req_flags
) ||
173 (alt_flags
&& !(po
->flags
& alt_flags
)) ||
174 (po
->flags
& rej_flags
))
181 av_strlcpy(buf
, po
->name
, sizeof(buf
));
183 av_strlcat(buf
, " ", sizeof(buf
));
184 av_strlcat(buf
, po
->argname
, sizeof(buf
));
186 printf("-%-17s %s\n", buf
, po
->help
);
191 void show_help_children(const AVClass
*class, int flags
)
193 const AVClass
*child
= NULL
;
195 av_opt_show2(&class, NULL
, flags
, 0);
199 while (child
= av_opt_child_class_next(class, child
))
200 show_help_children(child
, flags
);
203 static const OptionDef
*find_option(const OptionDef
*po
, const char *name
)
205 const char *p
= strchr(name
, ':');
206 int len
= p
? p
- name
: strlen(name
);
209 if (!strncmp(name
, po
->name
, len
) && strlen(po
->name
) == len
)
216 /* _WIN32 means using the windows libc - cygwin doesn't define that
217 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
218 * it doesn't provide the actual command line via GetCommandLineW(). */
219 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
221 #include <shellapi.h>
222 /* Will be leaked on exit */
223 static char** win32_argv_utf8
= NULL
;
224 static int win32_argc
= 0;
227 * Prepare command line arguments for executable.
228 * For Windows - perform wide-char to UTF-8 conversion.
229 * Input arguments should be main() function arguments.
230 * @param argc_ptr Arguments number (including executable)
231 * @param argv_ptr Arguments list.
233 static void prepare_app_arguments(int *argc_ptr
, char ***argv_ptr
)
237 int i
, buffsize
= 0, offset
= 0;
239 if (win32_argv_utf8
) {
240 *argc_ptr
= win32_argc
;
241 *argv_ptr
= win32_argv_utf8
;
246 argv_w
= CommandLineToArgvW(GetCommandLineW(), &win32_argc
);
247 if (win32_argc
<= 0 || !argv_w
)
250 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
251 for (i
= 0; i
< win32_argc
; i
++)
252 buffsize
+= WideCharToMultiByte(CP_UTF8
, 0, argv_w
[i
], -1,
253 NULL
, 0, NULL
, NULL
);
255 win32_argv_utf8
= av_mallocz(sizeof(char *) * (win32_argc
+ 1) + buffsize
);
256 argstr_flat
= (char *)win32_argv_utf8
+ sizeof(char *) * (win32_argc
+ 1);
257 if (!win32_argv_utf8
) {
262 for (i
= 0; i
< win32_argc
; i
++) {
263 win32_argv_utf8
[i
] = &argstr_flat
[offset
];
264 offset
+= WideCharToMultiByte(CP_UTF8
, 0, argv_w
[i
], -1,
265 &argstr_flat
[offset
],
266 buffsize
- offset
, NULL
, NULL
);
268 win32_argv_utf8
[i
] = NULL
;
271 *argc_ptr
= win32_argc
;
272 *argv_ptr
= win32_argv_utf8
;
275 static inline void prepare_app_arguments(int *argc_ptr
, char ***argv_ptr
)
279 #endif /* HAVE_COMMANDLINETOARGVW */
281 static int write_option(void *optctx
, const OptionDef
*po
, const char *opt
,
284 /* new-style options contain an offset into optctx, old-style address of
286 void *dst
= po
->flags
& (OPT_OFFSET
| OPT_SPEC
) ?
287 (uint8_t *)optctx
+ po
->u
.off
: po
->u
.dst_ptr
;
290 if (po
->flags
& OPT_SPEC
) {
291 SpecifierOpt
**so
= dst
;
292 char *p
= strchr(opt
, ':');
294 dstcount
= (int *)(so
+ 1);
295 *so
= grow_array(*so
, sizeof(**so
), dstcount
, *dstcount
+ 1);
296 (*so
)[*dstcount
- 1].specifier
= av_strdup(p
? p
+ 1 : "");
297 dst
= &(*so
)[*dstcount
- 1].u
;
300 if (po
->flags
& OPT_STRING
) {
302 str
= av_strdup(arg
);
305 } else if (po
->flags
& OPT_BOOL
|| po
->flags
& OPT_INT
) {
306 *(int *)dst
= parse_number_or_die(opt
, arg
, OPT_INT64
, INT_MIN
, INT_MAX
);
307 } else if (po
->flags
& OPT_INT64
) {
308 *(int64_t *)dst
= parse_number_or_die(opt
, arg
, OPT_INT64
, INT64_MIN
, INT64_MAX
);
309 } else if (po
->flags
& OPT_TIME
) {
310 *(int64_t *)dst
= parse_time_or_die(opt
, arg
, 1);
311 } else if (po
->flags
& OPT_FLOAT
) {
312 *(float *)dst
= parse_number_or_die(opt
, arg
, OPT_FLOAT
, -INFINITY
, INFINITY
);
313 } else if (po
->flags
& OPT_DOUBLE
) {
314 *(double *)dst
= parse_number_or_die(opt
, arg
, OPT_DOUBLE
, -INFINITY
, INFINITY
);
315 } else if (po
->u
.func_arg
) {
316 int ret
= po
->u
.func_arg(optctx
, opt
, arg
);
318 av_log(NULL
, AV_LOG_ERROR
,
319 "Failed to set value '%s' for option '%s': %s\n",
320 arg
, opt
, av_err2str(ret
));
324 if (po
->flags
& OPT_EXIT
)
330 int parse_option(void *optctx
, const char *opt
, const char *arg
,
331 const OptionDef
*options
)
336 po
= find_option(options
, opt
);
337 if (!po
->name
&& opt
[0] == 'n' && opt
[1] == 'o') {
338 /* handle 'no' bool option */
339 po
= find_option(options
, opt
+ 2);
340 if ((po
->name
&& (po
->flags
& OPT_BOOL
)))
342 } else if (po
->flags
& OPT_BOOL
)
346 po
= find_option(options
, "default");
348 av_log(NULL
, AV_LOG_ERROR
, "Unrecognized option '%s'\n", opt
);
349 return AVERROR(EINVAL
);
351 if (po
->flags
& HAS_ARG
&& !arg
) {
352 av_log(NULL
, AV_LOG_ERROR
, "Missing argument for option '%s'\n", opt
);
353 return AVERROR(EINVAL
);
356 ret
= write_option(optctx
, po
, opt
, arg
);
360 return !!(po
->flags
& HAS_ARG
);
363 void parse_options(void *optctx
, int argc
, char **argv
, const OptionDef
*options
,
364 void (*parse_arg_function
)(void *, const char*))
367 int optindex
, handleoptions
= 1, ret
;
369 /* perform system-dependent conversions for arguments list */
370 prepare_app_arguments(&argc
, &argv
);
374 while (optindex
< argc
) {
375 opt
= argv
[optindex
++];
377 if (handleoptions
&& opt
[0] == '-' && opt
[1] != '\0') {
378 if (opt
[1] == '-' && opt
[2] == '\0') {
384 if ((ret
= parse_option(optctx
, opt
, argv
[optindex
], options
)) < 0)
388 if (parse_arg_function
)
389 parse_arg_function(optctx
, opt
);
394 int parse_optgroup(void *optctx
, OptionGroup
*g
)
398 av_log(NULL
, AV_LOG_DEBUG
, "Parsing a group of options: %s %s.\n",
399 g
->group_def
->name
, g
->arg
);
401 for (i
= 0; i
< g
->nb_opts
; i
++) {
402 Option
*o
= &g
->opts
[i
];
404 if (g
->group_def
->flags
&&
405 !(g
->group_def
->flags
& o
->opt
->flags
)) {
406 av_log(NULL
, AV_LOG_ERROR
, "Option %s (%s) cannot be applied to "
407 "%s %s -- you are trying to apply an input option to an "
408 "output file or vice versa. Move this option before the "
409 "file it belongs to.\n", o
->key
, o
->opt
->help
,
410 g
->group_def
->name
, g
->arg
);
411 return AVERROR(EINVAL
);
414 av_log(NULL
, AV_LOG_DEBUG
, "Applying option %s (%s) with argument %s.\n",
415 o
->key
, o
->opt
->help
, o
->val
);
417 ret
= write_option(optctx
, o
->opt
, o
->key
, o
->val
);
422 av_log(NULL
, AV_LOG_DEBUG
, "Successfully parsed a group of options.\n");
427 int locate_option(int argc
, char **argv
, const OptionDef
*options
,
433 for (i
= 1; i
< argc
; i
++) {
434 const char *cur_opt
= argv
[i
];
436 if (*cur_opt
++ != '-')
439 po
= find_option(options
, cur_opt
);
440 if (!po
->name
&& cur_opt
[0] == 'n' && cur_opt
[1] == 'o')
441 po
= find_option(options
, cur_opt
+ 2);
443 if ((!po
->name
&& !strcmp(cur_opt
, optname
)) ||
444 (po
->name
&& !strcmp(optname
, po
->name
)))
447 if (!po
->name
|| po
->flags
& HAS_ARG
)
453 static void dump_argument(const char *a
)
455 const unsigned char *p
;
458 if (!((*p
>= '+' && *p
<= ':') || (*p
>= '@' && *p
<= 'Z') ||
459 *p
== '_' || (*p
>= 'a' && *p
<= 'z')))
462 fputs(a
, report_file
);
465 fputc('"', report_file
);
466 for (p
= a
; *p
; p
++) {
467 if (*p
== '\\' || *p
== '"' || *p
== '$' || *p
== '`')
468 fprintf(report_file
, "\\%c", *p
);
469 else if (*p
< ' ' || *p
> '~')
470 fprintf(report_file
, "\\x%02x", *p
);
472 fputc(*p
, report_file
);
474 fputc('"', report_file
);
477 void parse_loglevel(int argc
, char **argv
, const OptionDef
*options
)
479 int idx
= locate_option(argc
, argv
, options
, "loglevel");
482 idx
= locate_option(argc
, argv
, options
, "v");
483 if (idx
&& argv
[idx
+ 1])
484 opt_loglevel(NULL
, "loglevel", argv
[idx
+ 1]);
485 idx
= locate_option(argc
, argv
, options
, "report");
486 if ((env
= getenv("FFREPORT")) || idx
) {
490 fprintf(report_file
, "Command line:\n");
491 for (i
= 0; i
< argc
; i
++) {
492 dump_argument(argv
[i
]);
493 fputc(i
< argc
- 1 ? ' ' : '\n', report_file
);
498 idx
= locate_option(argc
, argv
, options
, "hide_banner");
503 static const AVOption
*opt_find(void *obj
, const char *name
, const char *unit
,
504 int opt_flags
, int search_flags
)
506 const AVOption
*o
= av_opt_find(obj
, name
, unit
, opt_flags
, search_flags
);
512 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
513 int opt_default(void *optctx
, const char *opt
, const char *arg
)
517 char opt_stripped
[128];
519 const AVClass
*cc
= avcodec_get_class(), *fc
= avformat_get_class();
520 #if CONFIG_AVRESAMPLE
521 const AVClass
*rc
= avresample_get_class();
523 const AVClass
*sc
, *swr_class
;
525 if (!strcmp(opt
, "debug") || !strcmp(opt
, "fdebug"))
526 av_log_set_level(AV_LOG_DEBUG
);
528 if (!(p
= strchr(opt
, ':')))
529 p
= opt
+ strlen(opt
);
530 av_strlcpy(opt_stripped
, opt
, FFMIN(sizeof(opt_stripped
), p
- opt
+ 1));
532 if ((o
= opt_find(&cc
, opt_stripped
, NULL
, 0,
533 AV_OPT_SEARCH_CHILDREN
| AV_OPT_SEARCH_FAKE_OBJ
)) ||
534 ((opt
[0] == 'v' || opt
[0] == 'a' || opt
[0] == 's') &&
535 (o
= opt_find(&cc
, opt
+ 1, NULL
, 0, AV_OPT_SEARCH_FAKE_OBJ
)))) {
536 av_dict_set(&codec_opts
, opt
, arg
, FLAGS
);
539 if ((o
= opt_find(&fc
, opt
, NULL
, 0,
540 AV_OPT_SEARCH_CHILDREN
| AV_OPT_SEARCH_FAKE_OBJ
))) {
541 av_dict_set(&format_opts
, opt
, arg
, FLAGS
);
543 av_log(NULL
, AV_LOG_VERBOSE
, "Routing option %s to both codec and muxer layer\n", opt
);
547 sc
= sws_get_class();
548 if (!consumed
&& opt_find(&sc
, opt
, NULL
, 0,
549 AV_OPT_SEARCH_CHILDREN
| AV_OPT_SEARCH_FAKE_OBJ
)) {
550 // XXX we only support sws_flags, not arbitrary sws options
551 int ret
= av_opt_set(sws_opts
, opt
, arg
, 0);
553 av_log(NULL
, AV_LOG_ERROR
, "Error setting option %s.\n", opt
);
559 if (!consumed
&& !strcmp(opt
, "sws_flags")) {
560 av_log(NULL
, AV_LOG_WARNING
, "Ignoring %s %s, due to disabled swscale\n", opt
, arg
);
564 #if CONFIG_SWRESAMPLE
565 swr_class
= swr_get_class();
566 if (!consumed
&& (o
=opt_find(&swr_class
, opt
, NULL
, 0,
567 AV_OPT_SEARCH_CHILDREN
| AV_OPT_SEARCH_FAKE_OBJ
))) {
568 struct SwrContext
*swr
= swr_alloc();
569 int ret
= av_opt_set(swr
, opt
, arg
, 0);
572 av_log(NULL
, AV_LOG_ERROR
, "Error setting option %s.\n", opt
);
575 av_dict_set(&swr_opts
, opt
, arg
, FLAGS
);
579 #if CONFIG_AVRESAMPLE
580 if ((o
=opt_find(&rc
, opt
, NULL
, 0,
581 AV_OPT_SEARCH_CHILDREN
| AV_OPT_SEARCH_FAKE_OBJ
))) {
582 av_dict_set(&resample_opts
, opt
, arg
, FLAGS
);
589 return AVERROR_OPTION_NOT_FOUND
;
593 * Check whether given option is a group separator.
595 * @return index of the group definition that matched or -1 if none
597 static int match_group_separator(const OptionGroupDef
*groups
, int nb_groups
,
602 for (i
= 0; i
< nb_groups
; i
++) {
603 const OptionGroupDef
*p
= &groups
[i
];
604 if (p
->sep
&& !strcmp(p
->sep
, opt
))
612 * Finish parsing an option group.
614 * @param group_idx which group definition should this group belong to
615 * @param arg argument of the group delimiting option
617 static void finish_group(OptionParseContext
*octx
, int group_idx
,
620 OptionGroupList
*l
= &octx
->groups
[group_idx
];
623 GROW_ARRAY(l
->groups
, l
->nb_groups
);
624 g
= &l
->groups
[l
->nb_groups
- 1];
626 *g
= octx
->cur_group
;
628 g
->group_def
= l
->group_def
;
630 g
->sws_opts
= sws_opts
;
632 g
->swr_opts
= swr_opts
;
633 g
->codec_opts
= codec_opts
;
634 g
->format_opts
= format_opts
;
635 g
->resample_opts
= resample_opts
;
639 resample_opts
= NULL
;
646 memset(&octx
->cur_group
, 0, sizeof(octx
->cur_group
));
650 * Add an option instance to currently parsed group.
652 static void add_opt(OptionParseContext
*octx
, const OptionDef
*opt
,
653 const char *key
, const char *val
)
655 int global
= !(opt
->flags
& (OPT_PERFILE
| OPT_SPEC
| OPT_OFFSET
));
656 OptionGroup
*g
= global
? &octx
->global_opts
: &octx
->cur_group
;
658 GROW_ARRAY(g
->opts
, g
->nb_opts
);
659 g
->opts
[g
->nb_opts
- 1].opt
= opt
;
660 g
->opts
[g
->nb_opts
- 1].key
= key
;
661 g
->opts
[g
->nb_opts
- 1].val
= val
;
664 static void init_parse_context(OptionParseContext
*octx
,
665 const OptionGroupDef
*groups
, int nb_groups
)
667 static const OptionGroupDef global_group
= { "global" };
670 memset(octx
, 0, sizeof(*octx
));
672 octx
->nb_groups
= nb_groups
;
673 octx
->groups
= av_mallocz_array(octx
->nb_groups
, sizeof(*octx
->groups
));
677 for (i
= 0; i
< octx
->nb_groups
; i
++)
678 octx
->groups
[i
].group_def
= &groups
[i
];
680 octx
->global_opts
.group_def
= &global_group
;
681 octx
->global_opts
.arg
= "";
686 void uninit_parse_context(OptionParseContext
*octx
)
690 for (i
= 0; i
< octx
->nb_groups
; i
++) {
691 OptionGroupList
*l
= &octx
->groups
[i
];
693 for (j
= 0; j
< l
->nb_groups
; j
++) {
694 av_freep(&l
->groups
[j
].opts
);
695 av_dict_free(&l
->groups
[j
].codec_opts
);
696 av_dict_free(&l
->groups
[j
].format_opts
);
697 av_dict_free(&l
->groups
[j
].resample_opts
);
699 sws_freeContext(l
->groups
[j
].sws_opts
);
701 av_dict_free(&l
->groups
[j
].swr_opts
);
703 av_freep(&l
->groups
);
705 av_freep(&octx
->groups
);
707 av_freep(&octx
->cur_group
.opts
);
708 av_freep(&octx
->global_opts
.opts
);
713 int split_commandline(OptionParseContext
*octx
, int argc
, char *argv
[],
714 const OptionDef
*options
,
715 const OptionGroupDef
*groups
, int nb_groups
)
720 /* perform system-dependent conversions for arguments list */
721 prepare_app_arguments(&argc
, &argv
);
723 init_parse_context(octx
, groups
, nb_groups
);
724 av_log(NULL
, AV_LOG_DEBUG
, "Splitting the commandline.\n");
726 while (optindex
< argc
) {
727 const char *opt
= argv
[optindex
++], *arg
;
731 av_log(NULL
, AV_LOG_DEBUG
, "Reading option '%s' ...", opt
);
733 if (opt
[0] == '-' && opt
[1] == '-' && !opt
[2]) {
737 /* unnamed group separators, e.g. output filename */
738 if (opt
[0] != '-' || !opt
[1] || dashdash
+1 == optindex
) {
739 finish_group(octx
, 0, opt
);
740 av_log(NULL
, AV_LOG_DEBUG
, " matched as %s.\n", groups
[0].name
);
745 #define GET_ARG(arg) \
747 arg = argv[optindex++]; \
749 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
750 return AVERROR(EINVAL); \
754 /* named group separators, e.g. -i */
755 if ((ret
= match_group_separator(groups
, nb_groups
, opt
)) >= 0) {
757 finish_group(octx
, ret
, arg
);
758 av_log(NULL
, AV_LOG_DEBUG
, " matched as %s with argument '%s'.\n",
759 groups
[ret
].name
, arg
);
764 po
= find_option(options
, opt
);
766 if (po
->flags
& OPT_EXIT
) {
767 /* optional argument, e.g. -h */
768 arg
= argv
[optindex
++];
769 } else if (po
->flags
& HAS_ARG
) {
775 add_opt(octx
, po
, opt
, arg
);
776 av_log(NULL
, AV_LOG_DEBUG
, " matched as option '%s' (%s) with "
777 "argument '%s'.\n", po
->name
, po
->help
, arg
);
782 if (argv
[optindex
]) {
783 ret
= opt_default(NULL
, opt
, argv
[optindex
]);
785 av_log(NULL
, AV_LOG_DEBUG
, " matched as AVOption '%s' with "
786 "argument '%s'.\n", opt
, argv
[optindex
]);
789 } else if (ret
!= AVERROR_OPTION_NOT_FOUND
) {
790 av_log(NULL
, AV_LOG_ERROR
, "Error parsing option '%s' "
791 "with argument '%s'.\n", opt
, argv
[optindex
]);
796 /* boolean -nofoo options */
797 if (opt
[0] == 'n' && opt
[1] == 'o' &&
798 (po
= find_option(options
, opt
+ 2)) &&
799 po
->name
&& po
->flags
& OPT_BOOL
) {
800 add_opt(octx
, po
, opt
, "0");
801 av_log(NULL
, AV_LOG_DEBUG
, " matched as option '%s' (%s) with "
802 "argument 0.\n", po
->name
, po
->help
);
806 av_log(NULL
, AV_LOG_ERROR
, "Unrecognized option '%s'.\n", opt
);
807 return AVERROR_OPTION_NOT_FOUND
;
810 if (octx
->cur_group
.nb_opts
|| codec_opts
|| format_opts
|| resample_opts
)
811 av_log(NULL
, AV_LOG_WARNING
, "Trailing options were found on the "
814 av_log(NULL
, AV_LOG_DEBUG
, "Finished splitting the commandline.\n");
819 int opt_cpuflags(void *optctx
, const char *opt
, const char *arg
)
822 unsigned flags
= av_get_cpu_flags();
824 if ((ret
= av_parse_cpu_caps(&flags
, arg
)) < 0)
827 av_force_cpu_flags(flags
);
831 int opt_loglevel(void *optctx
, const char *opt
, const char *arg
)
833 const struct { const char *name
; int level
; } log_levels
[] = {
834 { "quiet" , AV_LOG_QUIET
},
835 { "panic" , AV_LOG_PANIC
},
836 { "fatal" , AV_LOG_FATAL
},
837 { "error" , AV_LOG_ERROR
},
838 { "warning", AV_LOG_WARNING
},
839 { "info" , AV_LOG_INFO
},
840 { "verbose", AV_LOG_VERBOSE
},
841 { "debug" , AV_LOG_DEBUG
},
848 flags
= av_log_get_flags();
849 tail
= strstr(arg
, "repeat");
851 flags
&= ~AV_LOG_SKIP_REPEATED
;
853 flags
|= AV_LOG_SKIP_REPEATED
;
855 av_log_set_flags(flags
);
857 arg
+= 6 + (arg
[6]=='+');
861 for (i
= 0; i
< FF_ARRAY_ELEMS(log_levels
); i
++) {
862 if (!strcmp(log_levels
[i
].name
, arg
)) {
863 av_log_set_level(log_levels
[i
].level
);
868 level
= strtol(arg
, &tail
, 10);
870 av_log(NULL
, AV_LOG_FATAL
, "Invalid loglevel \"%s\". "
871 "Possible levels are numbers or:\n", arg
);
872 for (i
= 0; i
< FF_ARRAY_ELEMS(log_levels
); i
++)
873 av_log(NULL
, AV_LOG_FATAL
, "\"%s\"\n", log_levels
[i
].name
);
876 av_log_set_level(level
);
880 static void expand_filename_template(AVBPrint
*bp
, const char *template,
885 while ((c
= *(template++))) {
887 if (!(c
= *(template++)))
891 av_bprintf(bp
, "%s", program_name
);
894 av_bprintf(bp
, "%04d%02d%02d-%02d%02d%02d",
895 tm
->tm_year
+ 1900, tm
->tm_mon
+ 1, tm
->tm_mday
,
896 tm
->tm_hour
, tm
->tm_min
, tm
->tm_sec
);
899 av_bprint_chars(bp
, c
, 1);
903 av_bprint_chars(bp
, c
, 1);
908 static int init_report(const char *env
)
910 char *filename_template
= NULL
;
917 if (report_file
) /* already opened */
920 tm
= localtime(&now
);
922 while (env
&& *env
) {
923 if ((ret
= av_opt_get_key_value(&env
, "=", ":", 0, &key
, &val
)) < 0) {
925 av_log(NULL
, AV_LOG_ERROR
,
926 "Failed to parse FFREPORT environment variable: %s\n",
933 if (!strcmp(key
, "file")) {
934 av_free(filename_template
);
935 filename_template
= val
;
937 } else if (!strcmp(key
, "level")) {
939 report_file_level
= strtol(val
, &tail
, 10);
941 av_log(NULL
, AV_LOG_FATAL
, "Invalid report file level\n");
945 av_log(NULL
, AV_LOG_ERROR
, "Unknown key '%s' in FFREPORT\n", key
);
951 av_bprint_init(&filename
, 0, 1);
952 expand_filename_template(&filename
,
953 av_x_if_null(filename_template
, "%p-%t.log"), tm
);
954 av_free(filename_template
);
955 if (!av_bprint_is_complete(&filename
)) {
956 av_log(NULL
, AV_LOG_ERROR
, "Out of memory building report file name\n");
957 return AVERROR(ENOMEM
);
960 report_file
= fopen(filename
.str
, "w");
962 int ret
= AVERROR(errno
);
963 av_log(NULL
, AV_LOG_ERROR
, "Failed to open report \"%s\": %s\n",
964 filename
.str
, strerror(errno
));
967 av_log_set_callback(log_callback_report
);
968 av_log(NULL
, AV_LOG_INFO
,
969 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
970 "Report written to \"%s\"\n",
972 tm
->tm_year
+ 1900, tm
->tm_mon
+ 1, tm
->tm_mday
,
973 tm
->tm_hour
, tm
->tm_min
, tm
->tm_sec
,
975 av_bprint_finalize(&filename
, NULL
);
979 int opt_report(const char *opt
)
981 return init_report(NULL
);
984 int opt_max_alloc(void *optctx
, const char *opt
, const char *arg
)
989 max
= strtol(arg
, &tail
, 10);
991 av_log(NULL
, AV_LOG_FATAL
, "Invalid max_alloc \"%s\".\n", arg
);
998 int opt_timelimit(void *optctx
, const char *opt
, const char *arg
)
1001 int lim
= parse_number_or_die(opt
, arg
, OPT_INT64
, 0, INT_MAX
);
1002 struct rlimit rl
= { lim
, lim
+ 1 };
1003 if (setrlimit(RLIMIT_CPU
, &rl
))
1004 perror("setrlimit");
1006 av_log(NULL
, AV_LOG_WARNING
, "-%s not implemented on this OS\n", opt
);
1011 void print_error(const char *filename
, int err
)
1014 const char *errbuf_ptr
= errbuf
;
1016 if (av_strerror(err
, errbuf
, sizeof(errbuf
)) < 0)
1017 errbuf_ptr
= strerror(AVUNERROR(err
));
1018 av_log(NULL
, AV_LOG_ERROR
, "%s: %s\n", filename
, errbuf_ptr
);
1021 static int warned_cfg
= 0;
1024 #define SHOW_VERSION 2
1025 #define SHOW_CONFIG 4
1026 #define SHOW_COPYRIGHT 8
1028 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1029 if (CONFIG_##LIBNAME) { \
1030 const char *indent = flags & INDENT? " " : ""; \
1031 if (flags & SHOW_VERSION) { \
1032 unsigned int version = libname##_version(); \
1033 av_log(NULL, level, \
1034 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1036 LIB##LIBNAME##_VERSION_MAJOR, \
1037 LIB##LIBNAME##_VERSION_MINOR, \
1038 LIB##LIBNAME##_VERSION_MICRO, \
1039 version >> 16, version >> 8 & 0xff, version & 0xff); \
1041 if (flags & SHOW_CONFIG) { \
1042 const char *cfg = libname##_configuration(); \
1043 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1044 if (!warned_cfg) { \
1045 av_log(NULL, level, \
1046 "%sWARNING: library configuration mismatch\n", \
1050 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1051 indent, #libname, cfg); \
1056 static void print_all_libs_info(int flags, int level)
1058 PRINT_LIB_INFO(avutil
, AVUTIL
, flags
, level
);
1059 PRINT_LIB_INFO(avcodec
, AVCODEC
, flags
, level
);
1060 PRINT_LIB_INFO(avformat
, AVFORMAT
, flags
, level
);
1061 PRINT_LIB_INFO(avdevice
, AVDEVICE
, flags
, level
);
1062 PRINT_LIB_INFO(avfilter
, AVFILTER
, flags
, level
);
1063 PRINT_LIB_INFO(avresample
, AVRESAMPLE
, flags
, level
);
1064 PRINT_LIB_INFO(swscale
, SWSCALE
, flags
, level
);
1065 PRINT_LIB_INFO(swresample
,SWRESAMPLE
, flags
, level
);
1066 PRINT_LIB_INFO(postproc
, POSTPROC
, flags
, level
);
1069 static void print_program_info(int flags
, int level
)
1071 const char *indent
= flags
& INDENT
? " " : "";
1073 av_log(NULL
, level
, "%s version " FFMPEG_VERSION
, program_name
);
1074 if (flags
& SHOW_COPYRIGHT
)
1075 av_log(NULL
, level
, " Copyright (c) %d-%d the FFmpeg developers",
1076 program_birth_year
, CONFIG_THIS_YEAR
);
1077 av_log(NULL
, level
, "\n");
1078 av_log(NULL
, level
, "%sbuilt on %s %s with %s\n",
1079 indent
, __DATE__
, __TIME__
, CC_IDENT
);
1081 av_log(NULL
, level
, "%sconfiguration: " FFMPEG_CONFIGURATION
"\n", indent
);
1084 static void print_buildconf(int flags
, int level
)
1086 const char *indent
= flags
& INDENT
? " " : "";
1087 char str
[] = { FFMPEG_CONFIGURATION
};
1088 char *conflist
, *remove_tilde
, *splitconf
;
1090 // Change all the ' --' strings to '~--' so that
1091 // they can be identified as tokens.
1092 while ((conflist
= strstr(str
, " --")) != NULL
) {
1093 strncpy(conflist
, "~--", 3);
1096 // Compensate for the weirdness this would cause
1097 // when passing 'pkg-config --static'.
1098 while ((remove_tilde
= strstr(str
, "pkg-config~")) != NULL
) {
1099 strncpy(remove_tilde
, "pkg-config ", 11);
1102 splitconf
= strtok(str
, "~");
1103 av_log(NULL
, level
, "\n%sconfiguration:\n", indent
);
1104 while (splitconf
!= NULL
) {
1105 av_log(NULL
, level
, "%s%s%s\n", indent
, indent
, splitconf
);
1106 splitconf
= strtok(NULL
, "~");
1110 void show_banner(int argc
, char **argv
, const OptionDef
*options
)
1112 int idx
= locate_option(argc
, argv
, options
, "version");
1113 if (hide_banner
|| idx
)
1116 print_program_info (INDENT
|SHOW_COPYRIGHT
, AV_LOG_INFO
);
1117 print_all_libs_info(INDENT
|SHOW_CONFIG
, AV_LOG_INFO
);
1118 print_all_libs_info(INDENT
|SHOW_VERSION
, AV_LOG_INFO
);
1121 int show_version(void *optctx
, const char *opt
, const char *arg
)
1123 av_log_set_callback(log_callback_help
);
1124 print_program_info (SHOW_COPYRIGHT
, AV_LOG_INFO
);
1125 print_all_libs_info(SHOW_VERSION
, AV_LOG_INFO
);
1130 int show_buildconf(void *optctx
, const char *opt
, const char *arg
)
1132 av_log_set_callback(log_callback_help
);
1133 print_buildconf (INDENT
|0, AV_LOG_INFO
);
1138 int show_license(void *optctx
, const char *opt
, const char *arg
)
1142 "This version of %s has nonfree parts compiled in.\n"
1143 "Therefore it is not legally redistributable.\n",
1147 "%s is free software; you can redistribute it and/or modify\n"
1148 "it under the terms of the GNU General Public License as published by\n"
1149 "the Free Software Foundation; either version 3 of the License, or\n"
1150 "(at your option) any later version.\n"
1152 "%s is distributed in the hope that it will be useful,\n"
1153 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1154 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1155 "GNU General Public License for more details.\n"
1157 "You should have received a copy of the GNU General Public License\n"
1158 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1159 program_name
, program_name
, program_name
);
1162 "%s is free software; you can redistribute it and/or modify\n"
1163 "it under the terms of the GNU General Public License as published by\n"
1164 "the Free Software Foundation; either version 2 of the License, or\n"
1165 "(at your option) any later version.\n"
1167 "%s is distributed in the hope that it will be useful,\n"
1168 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1169 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1170 "GNU General Public License for more details.\n"
1172 "You should have received a copy of the GNU General Public License\n"
1173 "along with %s; if not, write to the Free Software\n"
1174 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1175 program_name
, program_name
, program_name
);
1178 "%s is free software; you can redistribute it and/or modify\n"
1179 "it under the terms of the GNU Lesser General Public License as published by\n"
1180 "the Free Software Foundation; either version 3 of the License, or\n"
1181 "(at your option) any later version.\n"
1183 "%s is distributed in the hope that it will be useful,\n"
1184 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1185 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1186 "GNU Lesser General Public License for more details.\n"
1188 "You should have received a copy of the GNU Lesser General Public License\n"
1189 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1190 program_name
, program_name
, program_name
);
1193 "%s is free software; you can redistribute it and/or\n"
1194 "modify it under the terms of the GNU Lesser General Public\n"
1195 "License as published by the Free Software Foundation; either\n"
1196 "version 2.1 of the License, or (at your option) any later version.\n"
1198 "%s is distributed in the hope that it will be useful,\n"
1199 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1200 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1201 "Lesser General Public License for more details.\n"
1203 "You should have received a copy of the GNU Lesser General Public\n"
1204 "License along with %s; if not, write to the Free Software\n"
1205 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1206 program_name
, program_name
, program_name
);
1212 static int is_device(const AVClass
*avclass
)
1216 return avclass
->category
== AV_CLASS_CATEGORY_DEVICE_VIDEO_OUTPUT
||
1217 avclass
->category
== AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT
||
1218 avclass
->category
== AV_CLASS_CATEGORY_DEVICE_AUDIO_OUTPUT
||
1219 avclass
->category
== AV_CLASS_CATEGORY_DEVICE_AUDIO_INPUT
||
1220 avclass
->category
== AV_CLASS_CATEGORY_DEVICE_OUTPUT
||
1221 avclass
->category
== AV_CLASS_CATEGORY_DEVICE_INPUT
;
1224 static int show_formats_devices(void *optctx
, const char *opt
, const char *arg
, int device_only
)
1226 AVInputFormat
*ifmt
= NULL
;
1227 AVOutputFormat
*ofmt
= NULL
;
1228 const char *last_name
;
1232 " D. = Demuxing supported\n"
1233 " .E = Muxing supported\n"
1234 " --\n", device_only
? "Devices:" : "File formats:");
1239 const char *name
= NULL
;
1240 const char *long_name
= NULL
;
1242 while ((ofmt
= av_oformat_next(ofmt
))) {
1243 is_dev
= is_device(ofmt
->priv_class
);
1244 if (!is_dev
&& device_only
)
1246 if ((!name
|| strcmp(ofmt
->name
, name
) < 0) &&
1247 strcmp(ofmt
->name
, last_name
) > 0) {
1249 long_name
= ofmt
->long_name
;
1253 while ((ifmt
= av_iformat_next(ifmt
))) {
1254 is_dev
= is_device(ifmt
->priv_class
);
1255 if (!is_dev
&& device_only
)
1257 if ((!name
|| strcmp(ifmt
->name
, name
) < 0) &&
1258 strcmp(ifmt
->name
, last_name
) > 0) {
1260 long_name
= ifmt
->long_name
;
1263 if (name
&& strcmp(ifmt
->name
, name
) == 0)
1270 printf(" %s%s %-15s %s\n",
1274 long_name
? long_name
:" ");
1279 int show_formats(void *optctx
, const char *opt
, const char *arg
)
1281 return show_formats_devices(optctx
, opt
, arg
, 0);
1284 int show_devices(void *optctx
, const char *opt
, const char *arg
)
1286 return show_formats_devices(optctx
, opt
, arg
, 1);
1289 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1290 if (codec->field) { \
1291 const type *p = codec->field; \
1293 printf(" Supported " list_name ":"); \
1294 while (*p != term) { \
1296 printf(" %s", name); \
1302 static void print_codec(const AVCodec *c)
1304 int encoder
= av_codec_is_encoder(c
);
1306 printf("%s %s [%s]:\n", encoder
? "Encoder" : "Decoder", c
->name
,
1307 c
->long_name
? c
->long_name
: "");
1309 if (c
->type
== AVMEDIA_TYPE_VIDEO
||
1310 c
->type
== AVMEDIA_TYPE_AUDIO
) {
1311 printf(" Threading capabilities: ");
1312 switch (c
->capabilities
& (CODEC_CAP_FRAME_THREADS
|
1313 CODEC_CAP_SLICE_THREADS
)) {
1314 case CODEC_CAP_FRAME_THREADS
|
1315 CODEC_CAP_SLICE_THREADS
: printf("frame and slice"); break;
1316 case CODEC_CAP_FRAME_THREADS
: printf("frame"); break;
1317 case CODEC_CAP_SLICE_THREADS
: printf("slice"); break;
1318 default: printf("no"); break;
1323 if (c
->supported_framerates
) {
1324 const AVRational
*fps
= c
->supported_framerates
;
1326 printf(" Supported framerates:");
1328 printf(" %d/%d", fps
->num
, fps
->den
);
1333 PRINT_CODEC_SUPPORTED(c
, pix_fmts
, enum AVPixelFormat
, "pixel formats",
1334 AV_PIX_FMT_NONE
, GET_PIX_FMT_NAME
);
1335 PRINT_CODEC_SUPPORTED(c
, supported_samplerates
, int, "sample rates", 0,
1336 GET_SAMPLE_RATE_NAME
);
1337 PRINT_CODEC_SUPPORTED(c
, sample_fmts
, enum AVSampleFormat
, "sample formats",
1338 AV_SAMPLE_FMT_NONE
, GET_SAMPLE_FMT_NAME
);
1339 PRINT_CODEC_SUPPORTED(c
, channel_layouts
, uint64_t, "channel layouts",
1340 0, GET_CH_LAYOUT_DESC
);
1342 if (c
->priv_class
) {
1343 show_help_children(c
->priv_class
,
1344 AV_OPT_FLAG_ENCODING_PARAM
|
1345 AV_OPT_FLAG_DECODING_PARAM
);
1349 static char get_media_type_char(enum AVMediaType type
)
1352 case AVMEDIA_TYPE_VIDEO
: return 'V';
1353 case AVMEDIA_TYPE_AUDIO
: return 'A';
1354 case AVMEDIA_TYPE_DATA
: return 'D';
1355 case AVMEDIA_TYPE_SUBTITLE
: return 'S';
1356 case AVMEDIA_TYPE_ATTACHMENT
:return 'T';
1357 default: return '?';
1361 static const AVCodec
*next_codec_for_id(enum AVCodecID id
, const AVCodec
*prev
,
1364 while ((prev
= av_codec_next(prev
))) {
1365 if (prev
->id
== id
&&
1366 (encoder
? av_codec_is_encoder(prev
) : av_codec_is_decoder(prev
)))
1372 static int compare_codec_desc(const void *a
, const void *b
)
1374 const AVCodecDescriptor
* const *da
= a
;
1375 const AVCodecDescriptor
* const *db
= b
;
1377 return (*da
)->type
!= (*db
)->type
? (*da
)->type
- (*db
)->type
:
1378 strcmp((*da
)->name
, (*db
)->name
);
1381 static unsigned get_codecs_sorted(const AVCodecDescriptor
***rcodecs
)
1383 const AVCodecDescriptor
*desc
= NULL
;
1384 const AVCodecDescriptor
**codecs
;
1385 unsigned nb_codecs
= 0, i
= 0;
1387 while ((desc
= avcodec_descriptor_next(desc
)))
1389 if (!(codecs
= av_calloc(nb_codecs
, sizeof(*codecs
)))) {
1390 av_log(NULL
, AV_LOG_ERROR
, "Out of memory\n");
1394 while ((desc
= avcodec_descriptor_next(desc
)))
1396 av_assert0(i
== nb_codecs
);
1397 qsort(codecs
, nb_codecs
, sizeof(*codecs
), compare_codec_desc
);
1402 static void print_codecs_for_id(enum AVCodecID id
, int encoder
)
1404 const AVCodec
*codec
= NULL
;
1406 printf(" (%s: ", encoder
? "encoders" : "decoders");
1408 while ((codec
= next_codec_for_id(id
, codec
, encoder
)))
1409 printf("%s ", codec
->name
);
1414 int show_codecs(void *optctx
, const char *opt
, const char *arg
)
1416 const AVCodecDescriptor
**codecs
;
1417 unsigned i
, nb_codecs
= get_codecs_sorted(&codecs
);
1420 " D..... = Decoding supported\n"
1421 " .E.... = Encoding supported\n"
1422 " ..V... = Video codec\n"
1423 " ..A... = Audio codec\n"
1424 " ..S... = Subtitle codec\n"
1425 " ...I.. = Intra frame-only codec\n"
1426 " ....L. = Lossy compression\n"
1427 " .....S = Lossless compression\n"
1429 for (i
= 0; i
< nb_codecs
; i
++) {
1430 const AVCodecDescriptor
*desc
= codecs
[i
];
1431 const AVCodec
*codec
= NULL
;
1433 if (strstr(desc
->name
, "_deprecated"))
1437 printf(avcodec_find_decoder(desc
->id
) ? "D" : ".");
1438 printf(avcodec_find_encoder(desc
->id
) ? "E" : ".");
1440 printf("%c", get_media_type_char(desc
->type
));
1441 printf((desc
->props
& AV_CODEC_PROP_INTRA_ONLY
) ? "I" : ".");
1442 printf((desc
->props
& AV_CODEC_PROP_LOSSY
) ? "L" : ".");
1443 printf((desc
->props
& AV_CODEC_PROP_LOSSLESS
) ? "S" : ".");
1445 printf(" %-20s %s", desc
->name
, desc
->long_name
? desc
->long_name
: "");
1447 /* print decoders/encoders when there's more than one or their
1448 * names are different from codec name */
1449 while ((codec
= next_codec_for_id(desc
->id
, codec
, 0))) {
1450 if (strcmp(codec
->name
, desc
->name
)) {
1451 print_codecs_for_id(desc
->id
, 0);
1456 while ((codec
= next_codec_for_id(desc
->id
, codec
, 1))) {
1457 if (strcmp(codec
->name
, desc
->name
)) {
1458 print_codecs_for_id(desc
->id
, 1);
1469 static void print_codecs(int encoder
)
1471 const AVCodecDescriptor
**codecs
;
1472 unsigned i
, nb_codecs
= get_codecs_sorted(&codecs
);
1477 " S..... = Subtitle\n"
1478 " .F.... = Frame-level multithreading\n"
1479 " ..S... = Slice-level multithreading\n"
1480 " ...X.. = Codec is experimental\n"
1481 " ....B. = Supports draw_horiz_band\n"
1482 " .....D = Supports direct rendering method 1\n"
1484 encoder
? "Encoders" : "Decoders");
1485 for (i
= 0; i
< nb_codecs
; i
++) {
1486 const AVCodecDescriptor
*desc
= codecs
[i
];
1487 const AVCodec
*codec
= NULL
;
1489 while ((codec
= next_codec_for_id(desc
->id
, codec
, encoder
))) {
1490 printf(" %c", get_media_type_char(desc
->type
));
1491 printf((codec
->capabilities
& CODEC_CAP_FRAME_THREADS
) ? "F" : ".");
1492 printf((codec
->capabilities
& CODEC_CAP_SLICE_THREADS
) ? "S" : ".");
1493 printf((codec
->capabilities
& CODEC_CAP_EXPERIMENTAL
) ? "X" : ".");
1494 printf((codec
->capabilities
& CODEC_CAP_DRAW_HORIZ_BAND
)?"B" : ".");
1495 printf((codec
->capabilities
& CODEC_CAP_DR1
) ? "D" : ".");
1497 printf(" %-20s %s", codec
->name
, codec
->long_name
? codec
->long_name
: "");
1498 if (strcmp(codec
->name
, desc
->name
))
1499 printf(" (codec %s)", desc
->name
);
1507 int show_decoders(void *optctx
, const char *opt
, const char *arg
)
1513 int show_encoders(void *optctx
, const char *opt
, const char *arg
)
1519 int show_bsfs(void *optctx
, const char *opt
, const char *arg
)
1521 AVBitStreamFilter
*bsf
= NULL
;
1523 printf("Bitstream filters:\n");
1524 while ((bsf
= av_bitstream_filter_next(bsf
)))
1525 printf("%s\n", bsf
->name
);
1530 int show_protocols(void *optctx
, const char *opt
, const char *arg
)
1532 void *opaque
= NULL
;
1535 printf("Supported file protocols:\n"
1537 while ((name
= avio_enum_protocols(&opaque
, 0)))
1538 printf("%s\n", name
);
1539 printf("Output:\n");
1540 while ((name
= avio_enum_protocols(&opaque
, 1)))
1541 printf("%s\n", name
);
1545 int show_filters(void *optctx
, const char *opt
, const char *arg
)
1548 const AVFilter
*filter
= NULL
;
1549 char descr
[64], *descr_cur
;
1551 const AVFilterPad
*pad
;
1554 " T.. = Timeline support\n"
1555 " .S. = Slice threading\n"
1556 " ..C = Commmand support\n"
1557 " A = Audio input/output\n"
1558 " V = Video input/output\n"
1559 " N = Dynamic number and/or type of input/output\n"
1560 " | = Source or sink filter\n");
1561 while ((filter
= avfilter_next(filter
))) {
1563 for (i
= 0; i
< 2; i
++) {
1565 *(descr_cur
++) = '-';
1566 *(descr_cur
++) = '>';
1568 pad
= i
? filter
->outputs
: filter
->inputs
;
1569 for (j
= 0; pad
&& pad
[j
].name
; j
++) {
1570 if (descr_cur
>= descr
+ sizeof(descr
) - 4)
1572 *(descr_cur
++) = get_media_type_char(pad
[j
].type
);
1575 *(descr_cur
++) = ((!i
&& (filter
->flags
& AVFILTER_FLAG_DYNAMIC_INPUTS
)) ||
1576 ( i
&& (filter
->flags
& AVFILTER_FLAG_DYNAMIC_OUTPUTS
))) ? 'N' : '|';
1579 printf(" %c%c%c %-16s %-10s %s\n",
1580 filter
->flags
& AVFILTER_FLAG_SUPPORT_TIMELINE
? 'T' : '.',
1581 filter
->flags
& AVFILTER_FLAG_SLICE_THREADS
? 'S' : '.',
1582 filter
->process_command
? 'C' : '.',
1583 filter
->name
, descr
, filter
->description
);
1586 printf("No filters available: libavfilter disabled\n");
1591 int show_colors(void *optctx
, const char *opt
, const char *arg
)
1597 printf("%-32s #RRGGBB\n", "name");
1599 for (i
= 0; name
= av_get_known_color_name(i
, &rgb
); i
++)
1600 printf("%-32s #%02x%02x%02x\n", name
, rgb
[0], rgb
[1], rgb
[2]);
1605 int show_pix_fmts(void *optctx
, const char *opt
, const char *arg
)
1607 const AVPixFmtDescriptor
*pix_desc
= NULL
;
1609 printf("Pixel formats:\n"
1610 "I.... = Supported Input format for conversion\n"
1611 ".O... = Supported Output format for conversion\n"
1612 "..H.. = Hardware accelerated format\n"
1613 "...P. = Paletted format\n"
1614 "....B = Bitstream format\n"
1615 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1619 # define sws_isSupportedInput(x) 0
1620 # define sws_isSupportedOutput(x) 0
1623 while ((pix_desc
= av_pix_fmt_desc_next(pix_desc
))) {
1624 enum AVPixelFormat pix_fmt
= av_pix_fmt_desc_get_id(pix_desc
);
1625 printf("%c%c%c%c%c %-16s %d %2d\n",
1626 sws_isSupportedInput (pix_fmt
) ? 'I' : '.',
1627 sws_isSupportedOutput(pix_fmt
) ? 'O' : '.',
1628 pix_desc
->flags
& AV_PIX_FMT_FLAG_HWACCEL
? 'H' : '.',
1629 pix_desc
->flags
& AV_PIX_FMT_FLAG_PAL
? 'P' : '.',
1630 pix_desc
->flags
& AV_PIX_FMT_FLAG_BITSTREAM
? 'B' : '.',
1632 pix_desc
->nb_components
,
1633 av_get_bits_per_pixel(pix_desc
));
1638 int show_layouts(void *optctx
, const char *opt
, const char *arg
)
1642 const char *name
, *descr
;
1644 printf("Individual channels:\n"
1645 "NAME DESCRIPTION\n");
1646 for (i
= 0; i
< 63; i
++) {
1647 name
= av_get_channel_name((uint64_t)1 << i
);
1650 descr
= av_get_channel_description((uint64_t)1 << i
);
1651 printf("%-14s %s\n", name
, descr
);
1653 printf("\nStandard channel layouts:\n"
1654 "NAME DECOMPOSITION\n");
1655 for (i
= 0; !av_get_standard_channel_layout(i
, &layout
, &name
); i
++) {
1657 printf("%-14s ", name
);
1658 for (j
= 1; j
; j
<<= 1)
1660 printf("%s%s", (layout
& (j
- 1)) ? "+" : "", av_get_channel_name(j
));
1667 int show_sample_fmts(void *optctx
, const char *opt
, const char *arg
)
1671 for (i
= -1; i
< AV_SAMPLE_FMT_NB
; i
++)
1672 printf("%s\n", av_get_sample_fmt_string(fmt_str
, sizeof(fmt_str
), i
));
1676 static void show_help_codec(const char *name
, int encoder
)
1678 const AVCodecDescriptor
*desc
;
1679 const AVCodec
*codec
;
1682 av_log(NULL
, AV_LOG_ERROR
, "No codec name specified.\n");
1686 codec
= encoder
? avcodec_find_encoder_by_name(name
) :
1687 avcodec_find_decoder_by_name(name
);
1691 else if ((desc
= avcodec_descriptor_get_by_name(name
))) {
1694 while ((codec
= next_codec_for_id(desc
->id
, codec
, encoder
))) {
1700 av_log(NULL
, AV_LOG_ERROR
, "Codec '%s' is known to FFmpeg, "
1701 "but no %s for it are available. FFmpeg might need to be "
1702 "recompiled with additional external libraries.\n",
1703 name
, encoder
? "encoders" : "decoders");
1706 av_log(NULL
, AV_LOG_ERROR
, "Codec '%s' is not recognized by FFmpeg.\n",
1711 static void show_help_demuxer(const char *name
)
1713 const AVInputFormat
*fmt
= av_find_input_format(name
);
1716 av_log(NULL
, AV_LOG_ERROR
, "Unknown format '%s'.\n", name
);
1720 printf("Demuxer %s [%s]:\n", fmt
->name
, fmt
->long_name
);
1722 if (fmt
->extensions
)
1723 printf(" Common extensions: %s.\n", fmt
->extensions
);
1725 if (fmt
->priv_class
)
1726 show_help_children(fmt
->priv_class
, AV_OPT_FLAG_DECODING_PARAM
);
1729 static void show_help_muxer(const char *name
)
1731 const AVCodecDescriptor
*desc
;
1732 const AVOutputFormat
*fmt
= av_guess_format(name
, NULL
, NULL
);
1735 av_log(NULL
, AV_LOG_ERROR
, "Unknown format '%s'.\n", name
);
1739 printf("Muxer %s [%s]:\n", fmt
->name
, fmt
->long_name
);
1741 if (fmt
->extensions
)
1742 printf(" Common extensions: %s.\n", fmt
->extensions
);
1744 printf(" Mime type: %s.\n", fmt
->mime_type
);
1745 if (fmt
->video_codec
!= AV_CODEC_ID_NONE
&&
1746 (desc
= avcodec_descriptor_get(fmt
->video_codec
))) {
1747 printf(" Default video codec: %s.\n", desc
->name
);
1749 if (fmt
->audio_codec
!= AV_CODEC_ID_NONE
&&
1750 (desc
= avcodec_descriptor_get(fmt
->audio_codec
))) {
1751 printf(" Default audio codec: %s.\n", desc
->name
);
1753 if (fmt
->subtitle_codec
!= AV_CODEC_ID_NONE
&&
1754 (desc
= avcodec_descriptor_get(fmt
->subtitle_codec
))) {
1755 printf(" Default subtitle codec: %s.\n", desc
->name
);
1758 if (fmt
->priv_class
)
1759 show_help_children(fmt
->priv_class
, AV_OPT_FLAG_ENCODING_PARAM
);
1763 static void show_help_filter(const char *name
)
1766 const AVFilter
*f
= avfilter_get_by_name(name
);
1770 av_log(NULL
, AV_LOG_ERROR
, "No filter name specified.\n");
1773 av_log(NULL
, AV_LOG_ERROR
, "Unknown filter '%s'.\n", name
);
1777 printf("Filter %s\n", f
->name
);
1779 printf(" %s\n", f
->description
);
1781 if (f
->flags
& AVFILTER_FLAG_SLICE_THREADS
)
1782 printf(" slice threading supported\n");
1784 printf(" Inputs:\n");
1785 count
= avfilter_pad_count(f
->inputs
);
1786 for (i
= 0; i
< count
; i
++) {
1787 printf(" #%d: %s (%s)\n", i
, avfilter_pad_get_name(f
->inputs
, i
),
1788 media_type_string(avfilter_pad_get_type(f
->inputs
, i
)));
1790 if (f
->flags
& AVFILTER_FLAG_DYNAMIC_INPUTS
)
1791 printf(" dynamic (depending on the options)\n");
1793 printf(" none (source filter)\n");
1795 printf(" Outputs:\n");
1796 count
= avfilter_pad_count(f
->outputs
);
1797 for (i
= 0; i
< count
; i
++) {
1798 printf(" #%d: %s (%s)\n", i
, avfilter_pad_get_name(f
->outputs
, i
),
1799 media_type_string(avfilter_pad_get_type(f
->outputs
, i
)));
1801 if (f
->flags
& AVFILTER_FLAG_DYNAMIC_OUTPUTS
)
1802 printf(" dynamic (depending on the options)\n");
1804 printf(" none (sink filter)\n");
1807 show_help_children(f
->priv_class
, AV_OPT_FLAG_VIDEO_PARAM
| AV_OPT_FLAG_FILTERING_PARAM
|
1808 AV_OPT_FLAG_AUDIO_PARAM
);
1809 if (f
->flags
& AVFILTER_FLAG_SUPPORT_TIMELINE
)
1810 printf("This filter has support for timeline through the 'enable' option.\n");
1812 av_log(NULL
, AV_LOG_ERROR
, "Build without libavfilter; "
1813 "can not to satisfy request\n");
1818 int show_help(void *optctx
, const char *opt
, const char *arg
)
1821 av_log_set_callback(log_callback_help
);
1823 topic
= av_strdup(arg
? arg
: "");
1824 par
= strchr(topic
, '=');
1829 show_help_default(topic
, par
);
1830 } else if (!strcmp(topic
, "decoder")) {
1831 show_help_codec(par
, 0);
1832 } else if (!strcmp(topic
, "encoder")) {
1833 show_help_codec(par
, 1);
1834 } else if (!strcmp(topic
, "demuxer")) {
1835 show_help_demuxer(par
);
1836 } else if (!strcmp(topic
, "muxer")) {
1837 show_help_muxer(par
);
1839 } else if (!strcmp(topic
, "filter")) {
1840 show_help_filter(par
);
1843 show_help_default(topic
, par
);
1850 int read_yesno(void)
1853 int yesno
= (av_toupper(c
) == 'Y');
1855 while (c
!= '\n' && c
!= EOF
)
1861 int cmdutils_read_file(const char *filename
, char **bufptr
, size_t *size
)
1864 FILE *f
= av_fopen_utf8(filename
, "rb");
1867 ret
= AVERROR(errno
);
1868 av_log(NULL
, AV_LOG_ERROR
, "Cannot read file '%s': %s\n", filename
,
1872 fseek(f
, 0, SEEK_END
);
1874 fseek(f
, 0, SEEK_SET
);
1875 if (*size
== (size_t)-1) {
1876 ret
= AVERROR(errno
);
1877 av_log(NULL
, AV_LOG_ERROR
, "IO error: %s\n", strerror(errno
));
1881 *bufptr
= av_malloc(*size
+ 1);
1883 av_log(NULL
, AV_LOG_ERROR
, "Could not allocate file buffer\n");
1885 return AVERROR(ENOMEM
);
1887 ret
= fread(*bufptr
, 1, *size
, f
);
1891 ret
= AVERROR(errno
);
1892 av_log(NULL
, AV_LOG_ERROR
, "Error while reading file '%s': %s\n",
1893 filename
, strerror(errno
));
1898 (*bufptr
)[(*size
)++] = '\0';
1905 FILE *get_preset_file(char *filename
, size_t filename_size
,
1906 const char *preset_name
, int is_path
,
1907 const char *codec_name
)
1911 const char *base
[3] = { getenv("FFMPEG_DATADIR"),
1916 av_strlcpy(filename
, preset_name
, filename_size
);
1917 f
= fopen(filename
, "r");
1920 char datadir
[MAX_PATH
], *ls
;
1923 if (GetModuleFileNameA(GetModuleHandleA(NULL
), datadir
, sizeof(datadir
) - 1))
1925 for (ls
= datadir
; ls
< datadir
+ strlen(datadir
); ls
++)
1926 if (*ls
== '\\') *ls
= '/';
1928 if (ls
= strrchr(datadir
, '/'))
1931 strncat(datadir
, "/ffpresets", sizeof(datadir
) - 1 - strlen(datadir
));
1936 for (i
= 0; i
< 3 && !f
; i
++) {
1939 snprintf(filename
, filename_size
, "%s%s/%s.ffpreset", base
[i
],
1940 i
!= 1 ? "" : "/.ffmpeg", preset_name
);
1941 f
= fopen(filename
, "r");
1942 if (!f
&& codec_name
) {
1943 snprintf(filename
, filename_size
,
1944 "%s%s/%s-%s.ffpreset",
1945 base
[i
], i
!= 1 ? "" : "/.ffmpeg", codec_name
,
1947 f
= fopen(filename
, "r");
1955 int check_stream_specifier(AVFormatContext
*s
, AVStream
*st
, const char *spec
)
1957 int ret
= avformat_match_stream_specifier(s
, st
, spec
);
1959 av_log(s
, AV_LOG_ERROR
, "Invalid stream specifier: %s.\n", spec
);
1963 AVDictionary
*filter_codec_opts(AVDictionary
*opts
, enum AVCodecID codec_id
,
1964 AVFormatContext
*s
, AVStream
*st
, AVCodec
*codec
)
1966 AVDictionary
*ret
= NULL
;
1967 AVDictionaryEntry
*t
= NULL
;
1968 int flags
= s
->oformat
? AV_OPT_FLAG_ENCODING_PARAM
1969 : AV_OPT_FLAG_DECODING_PARAM
;
1971 const AVClass
*cc
= avcodec_get_class();
1974 codec
= s
->oformat
? avcodec_find_encoder(codec_id
)
1975 : avcodec_find_decoder(codec_id
);
1977 switch (st
->codec
->codec_type
) {
1978 case AVMEDIA_TYPE_VIDEO
:
1980 flags
|= AV_OPT_FLAG_VIDEO_PARAM
;
1982 case AVMEDIA_TYPE_AUDIO
:
1984 flags
|= AV_OPT_FLAG_AUDIO_PARAM
;
1986 case AVMEDIA_TYPE_SUBTITLE
:
1988 flags
|= AV_OPT_FLAG_SUBTITLE_PARAM
;
1992 while (t
= av_dict_get(opts
, "", t
, AV_DICT_IGNORE_SUFFIX
)) {
1993 char *p
= strchr(t
->key
, ':');
1995 /* check stream specification in opt name */
1997 switch (check_stream_specifier(s
, st
, p
+ 1)) {
1998 case 1: *p
= 0; break;
2000 default: exit_program(1);
2003 if (av_opt_find(&cc
, t
->key
, NULL
, flags
, AV_OPT_SEARCH_FAKE_OBJ
) ||
2005 (codec
->priv_class
&&
2006 av_opt_find(&codec
->priv_class
, t
->key
, NULL
, flags
,
2007 AV_OPT_SEARCH_FAKE_OBJ
)))
2008 av_dict_set(&ret
, t
->key
, t
->value
, 0);
2009 else if (t
->key
[0] == prefix
&&
2010 av_opt_find(&cc
, t
->key
+ 1, NULL
, flags
,
2011 AV_OPT_SEARCH_FAKE_OBJ
))
2012 av_dict_set(&ret
, t
->key
+ 1, t
->value
, 0);
2020 AVDictionary
**setup_find_stream_info_opts(AVFormatContext
*s
,
2021 AVDictionary
*codec_opts
)
2024 AVDictionary
**opts
;
2028 opts
= av_mallocz_array(s
->nb_streams
, sizeof(*opts
));
2030 av_log(NULL
, AV_LOG_ERROR
,
2031 "Could not alloc memory for stream options.\n");
2034 for (i
= 0; i
< s
->nb_streams
; i
++)
2035 opts
[i
] = filter_codec_opts(codec_opts
, s
->streams
[i
]->codec
->codec_id
,
2036 s
, s
->streams
[i
], NULL
);
2040 void *grow_array(void *array
, int elem_size
, int *size
, int new_size
)
2042 if (new_size
>= INT_MAX
/ elem_size
) {
2043 av_log(NULL
, AV_LOG_ERROR
, "Array too big.\n");
2046 if (*size
< new_size
) {
2047 uint8_t *tmp
= av_realloc(array
, new_size
*elem_size
);
2049 av_log(NULL
, AV_LOG_ERROR
, "Could not alloc buffer.\n");
2052 memset(tmp
+ *size
*elem_size
, 0, (new_size
-*size
) * elem_size
);
2060 static int print_device_sources(AVInputFormat
*fmt
, AVDictionary
*opts
)
2063 AVFormatContext
*dev
= NULL
;
2064 AVDeviceInfoList
*device_list
= NULL
;
2065 AVDictionary
*tmp_opts
= NULL
;
2067 if (!fmt
|| !fmt
->priv_class
|| !AV_IS_INPUT_DEVICE(fmt
->priv_class
->category
))
2068 return AVERROR(EINVAL
);
2070 printf("Audo-detected sources for %s:\n", fmt
->name
);
2071 if (!fmt
->get_device_list
) {
2072 ret
= AVERROR(ENOSYS
);
2073 printf("Cannot list sources. Not implemented.\n");
2077 /* TODO: avformat_open_input calls read_header callback which is not necessary.
2078 Function like avformat_alloc_output_context2 for input could be helpful here. */
2079 av_dict_copy(&tmp_opts
, opts
, 0);
2080 if ((ret
= avformat_open_input(&dev
, NULL
, fmt
, &tmp_opts
)) < 0) {
2081 printf("Cannot open device: %s.\n", fmt
->name
);
2085 if ((ret
= avdevice_list_devices(dev
, &device_list
)) < 0) {
2086 printf("Cannot list sources.\n");
2090 for (i
= 0; i
< device_list
->nb_devices
; i
++) {
2091 printf("%s %s [%s]\n", device_list
->default_device
== i
? "*" : " ",
2092 device_list
->devices
[i
]->device_name
, device_list
->devices
[i
]->device_description
);
2096 av_dict_free(&tmp_opts
);
2097 avdevice_free_list_devices(&device_list
);
2098 avformat_close_input(&dev
);
2102 static int print_device_sinks(AVOutputFormat
*fmt
, AVDictionary
*opts
)
2105 AVFormatContext
*dev
= NULL
;
2106 AVDeviceInfoList
*device_list
= NULL
;
2107 AVDictionary
*tmp_opts
= NULL
;
2109 if (!fmt
|| !fmt
->priv_class
|| !AV_IS_OUTPUT_DEVICE(fmt
->priv_class
->category
))
2110 return AVERROR(EINVAL
);
2112 printf("Audo-detected sinks for %s:\n", fmt
->name
);
2113 if (!fmt
->get_device_list
) {
2114 ret
= AVERROR(ENOSYS
);
2115 printf("Cannot list sinks. Not implemented.\n");
2119 if ((ret
= avformat_alloc_output_context2(&dev
, fmt
, NULL
, NULL
)) < 0) {
2120 printf("Cannot open device: %s.\n", fmt
->name
);
2123 av_dict_copy(&tmp_opts
, opts
, 0);
2124 av_opt_set_dict2(dev
, &tmp_opts
, AV_OPT_SEARCH_CHILDREN
);
2126 if ((ret
= avdevice_list_devices(dev
, &device_list
)) < 0) {
2127 printf("Cannot list sinks.\n");
2131 for (i
= 0; i
< device_list
->nb_devices
; i
++) {
2132 printf("%s %s [%s]\n", device_list
->default_device
== i
? "*" : " ",
2133 device_list
->devices
[i
]->device_name
, device_list
->devices
[i
]->device_description
);
2137 av_dict_free(&tmp_opts
);
2138 avdevice_free_list_devices(&device_list
);
2139 avformat_free_context(dev
);
2143 static int show_sinks_sources_parse_arg(const char *arg
, char **dev
, AVDictionary
**opts
)
2147 char *opts_str
= NULL
;
2148 av_assert0(dev
&& opts
);
2149 *dev
= av_strdup(arg
);
2151 return AVERROR(ENOMEM
);
2152 if ((opts_str
= strchr(*dev
, ','))) {
2153 *(opts_str
++) = '\0';
2154 if (opts_str
[0] && ((ret
= av_dict_parse_string(opts
, opts_str
, "=", ":", 0)) < 0)) {
2160 printf("\nDevice name is not provided.\n"
2161 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2165 int show_sources(void *optctx
, const char *opt
, const char *arg
)
2167 AVInputFormat
*fmt
= NULL
;
2169 AVDictionary
*opts
= NULL
;
2171 int error_level
= av_log_get_level();
2173 av_log_set_level(AV_LOG_ERROR
);
2175 if ((ret
= show_sinks_sources_parse_arg(arg
, &dev
, &opts
)) < 0)
2179 fmt
= av_input_audio_device_next(fmt
);
2181 if (!strcmp(fmt
->name
, "lavfi"))
2182 continue; //it's pointless to probe lavfi
2183 if (dev
&& strcmp(fmt
->name
, dev
))
2185 print_device_sources(fmt
, opts
);
2189 fmt
= av_input_video_device_next(fmt
);
2191 if (dev
&& strcmp(fmt
->name
, dev
))
2193 print_device_sources(fmt
, opts
);
2197 av_dict_free(&opts
);
2199 av_log_set_level(error_level
);
2203 int show_sinks(void *optctx
, const char *opt
, const char *arg
)
2205 AVOutputFormat
*fmt
= NULL
;
2207 AVDictionary
*opts
= NULL
;
2209 int error_level
= av_log_get_level();
2211 av_log_set_level(AV_LOG_ERROR
);
2213 if ((ret
= show_sinks_sources_parse_arg(arg
, &dev
, &opts
)) < 0)
2217 fmt
= av_output_audio_device_next(fmt
);
2219 if (dev
&& strcmp(fmt
->name
, dev
))
2221 print_device_sinks(fmt
, opts
);
2225 fmt
= av_output_video_device_next(fmt
);
2227 if (dev
&& strcmp(fmt
->name
, dev
))
2229 print_device_sinks(fmt
, opts
);
2233 av_dict_free(&opts
);
2235 av_log_set_level(error_level
);