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 AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1219 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
1221 AVInputFormat *ifmt = NULL;
1222 AVOutputFormat *ofmt = NULL;
1223 const char *last_name;
1227 " D. = Demuxing supported\n"
1228 " .E = Muxing supported\n"
1229 " --\n", device_only ? "Devices:" : "File formats:");
1234 const char *name = NULL;
1235 const char *long_name = NULL;
1237 while ((ofmt = av_oformat_next(ofmt))) {
1238 is_dev = is_device(ofmt->priv_class);
1239 if (!is_dev && device_only)
1241 if ((!name || strcmp(ofmt->name, name) < 0) &&
1242 strcmp(ofmt->name, last_name) > 0) {
1244 long_name = ofmt->long_name;
1248 while ((ifmt = av_iformat_next(ifmt))) {
1249 is_dev = is_device(ifmt->priv_class);
1250 if (!is_dev && device_only)
1252 if ((!name || strcmp(ifmt->name, name) < 0) &&
1253 strcmp(ifmt->name, last_name) > 0) {
1255 long_name = ifmt->long_name;
1258 if (name && strcmp(ifmt->name, name) == 0)
1265 printf(" %s%s %-15s %s\n",
1269 long_name ? long_name:" ");
1274 int show_formats(void *optctx, const char *opt, const char *arg)
1276 return show_formats_devices(optctx, opt, arg, 0);
1279 int show_devices(void *optctx, const char *opt, const char *arg)
1281 return show_formats_devices(optctx, opt, arg, 1);
1284 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1285 if (codec->field) { \
1286 const type *p = codec->field; \
1288 printf(" Supported " list_name ":"); \
1289 while (*p != term) { \
1291 printf(" %s", name); \
1297 static void print_codec(const AVCodec *c)
1299 int encoder = av_codec_is_encoder(c);
1301 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1302 c->long_name ? c->long_name : "");
1304 if (c->type == AVMEDIA_TYPE_VIDEO ||
1305 c->type == AVMEDIA_TYPE_AUDIO) {
1306 printf(" Threading capabilities: ");
1307 switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
1308 CODEC_CAP_SLICE_THREADS)) {
1309 case CODEC_CAP_FRAME_THREADS |
1310 CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1311 case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1312 case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1313 default: printf("no"); break;
1318 if (c->supported_framerates) {
1319 const AVRational *fps = c->supported_framerates;
1321 printf(" Supported framerates:");
1323 printf(" %d/%d", fps->num, fps->den);
1328 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1329 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1330 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1331 GET_SAMPLE_RATE_NAME);
1332 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1333 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1334 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1335 0, GET_CH_LAYOUT_DESC);
1337 if (c->priv_class) {
1338 show_help_children(c->priv_class,
1339 AV_OPT_FLAG_ENCODING_PARAM |
1340 AV_OPT_FLAG_DECODING_PARAM);
1344 static char get_media_type_char(enum AVMediaType type)
1347 case AVMEDIA_TYPE_VIDEO: return 'V';
1348 case AVMEDIA_TYPE_AUDIO: return 'A';
1349 case AVMEDIA_TYPE_DATA: return 'D';
1350 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1351 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1352 default: return '?';
1356 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1359 while ((prev = av_codec_next(prev))) {
1360 if (prev->id == id &&
1361 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1367 static int compare_codec_desc(const void *a, const void *b)
1369 const AVCodecDescriptor * const *da = a;
1370 const AVCodecDescriptor * const *db = b;
1372 return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
1373 strcmp((*da)->name, (*db)->name);
1376 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1378 const AVCodecDescriptor *desc = NULL;
1379 const AVCodecDescriptor **codecs;
1380 unsigned nb_codecs = 0, i = 0;
1382 while ((desc = avcodec_descriptor_next(desc)))
1384 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1385 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1389 while ((desc = avcodec_descriptor_next(desc)))
1391 av_assert0(i == nb_codecs);
1392 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1397 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1399 const AVCodec *codec = NULL;
1401 printf(" (%s: ", encoder ? "encoders" : "decoders");
1403 while ((codec = next_codec_for_id(id, codec, encoder)))
1404 printf("%s ", codec->name);
1409 int show_codecs(void *optctx, const char *opt, const char *arg)
1411 const AVCodecDescriptor **codecs;
1412 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1415 " D..... = Decoding supported\n"
1416 " .E.... = Encoding supported\n"
1417 " ..V... = Video codec\n"
1418 " ..A... = Audio codec\n"
1419 " ..S... = Subtitle codec\n"
1420 " ...I.. = Intra frame-only codec\n"
1421 " ....L. = Lossy compression\n"
1422 " .....S = Lossless compression\n"
1424 for (i = 0; i < nb_codecs; i++) {
1425 const AVCodecDescriptor *desc = codecs[i];
1426 const AVCodec *codec = NULL;
1428 if (strstr(desc->name, "_deprecated"))
1432 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1433 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1435 printf("%c", get_media_type_char(desc->type));
1436 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1437 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1438 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1440 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1442 /* print decoders/encoders when there's more than one or their
1443 * names are different from codec name */
1444 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1445 if (strcmp(codec->name, desc->name)) {
1446 print_codecs_for_id(desc->id, 0);
1451 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1452 if (strcmp(codec->name, desc->name)) {
1453 print_codecs_for_id(desc->id, 1);
1464 static void print_codecs(int encoder)
1466 const AVCodecDescriptor **codecs;
1467 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1472 " S..... = Subtitle\n"
1473 " .F.... = Frame-level multithreading\n"
1474 " ..S... = Slice-level multithreading\n"
1475 " ...X.. = Codec is experimental\n"
1476 " ....B. = Supports draw_horiz_band\n"
1477 " .....D = Supports direct rendering method 1\n"
1479 encoder ? "Encoders" : "Decoders");
1480 for (i = 0; i < nb_codecs; i++) {
1481 const AVCodecDescriptor *desc = codecs[i];
1482 const AVCodec *codec = NULL;
1484 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1485 printf(" %c", get_media_type_char(desc->type));
1486 printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1487 printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1488 printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1489 printf((codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1490 printf((codec->capabilities & CODEC_CAP_DR1) ? "D" : ".");
1492 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1493 if (strcmp(codec->name, desc->name))
1494 printf(" (codec %s)", desc->name);
1502 int show_decoders(void *optctx, const char *opt, const char *arg)
1508 int show_encoders(void *optctx, const char *opt, const char *arg)
1514 int show_bsfs(void *optctx, const char *opt, const char *arg)
1516 AVBitStreamFilter *bsf = NULL;
1518 printf("Bitstream filters:\n");
1519 while ((bsf = av_bitstream_filter_next(bsf)))
1520 printf("%s\n", bsf->name);
1525 int show_protocols(void *optctx, const char *opt, const char *arg)
1527 void *opaque = NULL;
1530 printf("Supported file protocols:\n"
1532 while ((name = avio_enum_protocols(&opaque, 0)))
1533 printf("%s\n", name);
1534 printf("Output:\n");
1535 while ((name = avio_enum_protocols(&opaque, 1)))
1536 printf("%s\n", name);
1540 int show_filters(void *optctx, const char *opt, const char *arg)
1543 const AVFilter *filter = NULL;
1544 char descr[64], *descr_cur;
1546 const AVFilterPad *pad;
1549 " T.. = Timeline support\n"
1550 " .S. = Slice threading\n"
1551 " ..C = Commmand support\n"
1552 " A = Audio input/output\n"
1553 " V = Video input/output\n"
1554 " N = Dynamic number and/or type of input/output\n"
1555 " | = Source or sink filter\n");
1556 while ((filter = avfilter_next(filter))) {
1558 for (i = 0; i < 2; i++) {
1560 *(descr_cur++) = '-';
1561 *(descr_cur++) = '>';
1563 pad = i ? filter->outputs : filter->inputs;
1564 for (j = 0; pad && pad[j].name; j++) {
1565 if (descr_cur >= descr + sizeof(descr) - 4)
1567 *(descr_cur++) = get_media_type_char(pad[j].type);
1570 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1571 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1574 printf(" %c%c%c %-16s %-10s %s\n",
1575 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1576 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1577 filter->process_command ? 'C' : '.',
1578 filter->name, descr, filter->description);
1581 printf("No filters available: libavfilter disabled\n");
1586 int show_colors(void *optctx, const char *opt, const char *arg)
1592 printf("%-32s #RRGGBB\n", "name");
1594 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1595 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1600 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1602 const AVPixFmtDescriptor *pix_desc = NULL;
1604 printf("Pixel formats:\n"
1605 "I.... = Supported Input format for conversion\n"
1606 ".O... = Supported Output format for conversion\n"
1607 "..H.. = Hardware accelerated format\n"
1608 "...P. = Paletted format\n"
1609 "....B = Bitstream format\n"
1610 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1614 # define sws_isSupportedInput(x) 0
1615 # define sws_isSupportedOutput(x) 0
1618 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1619 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1620 printf("%c%c%c%c%c %-16s %d %2d\n",
1621 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1622 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1623 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1624 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1625 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1627 pix_desc->nb_components,
1628 av_get_bits_per_pixel(pix_desc));
1633 int show_layouts(void *optctx, const char *opt, const char *arg)
1637 const char *name, *descr;
1639 printf("Individual channels:\n"
1640 "NAME DESCRIPTION\n");
1641 for (i = 0; i < 63; i++) {
1642 name = av_get_channel_name((uint64_t)1 << i);
1645 descr = av_get_channel_description((uint64_t)1 << i);
1646 printf("%-14s %s\n", name, descr);
1648 printf("\nStandard channel layouts:\n"
1649 "NAME DECOMPOSITION\n");
1650 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1652 printf("%-14s ", name);
1653 for (j = 1; j; j <<= 1)
1655 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1662 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1666 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1667 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1671 static void show_help_codec(const char *name, int encoder)
1673 const AVCodecDescriptor *desc;
1674 const AVCodec *codec;
1677 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1681 codec = encoder ? avcodec_find_encoder_by_name(name) :
1682 avcodec_find_decoder_by_name(name);
1686 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1689 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1695 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1696 "but no %s for it are available. FFmpeg might need to be "
1697 "recompiled with additional external libraries.\n",
1698 name, encoder ? "encoders" : "decoders");
1701 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1706 static void show_help_demuxer(const char *name)
1708 const AVInputFormat *fmt = av_find_input_format(name);
1711 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1715 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1717 if (fmt->extensions)
1718 printf(" Common extensions: %s.\n", fmt->extensions);
1720 if (fmt->priv_class)
1721 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1724 static void show_help_muxer(const char *name)
1726 const AVCodecDescriptor *desc;
1727 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1730 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1734 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1736 if (fmt->extensions)
1737 printf(" Common extensions: %s.\n", fmt->extensions);
1739 printf(" Mime type: %s.\n", fmt->mime_type);
1740 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1741 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1742 printf(" Default video codec: %s.\n", desc->name);
1744 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1745 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1746 printf(" Default audio codec: %s.\n", desc->name);
1748 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1749 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1750 printf(" Default subtitle codec: %s.\n", desc->name);
1753 if (fmt->priv_class)
1754 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1758 static void show_help_filter(const char *name)
1761 const AVFilter *f = avfilter_get_by_name(name);
1765 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1768 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1772 printf("Filter %s\n", f->name);
1774 printf(" %s\n", f->description);
1776 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1777 printf(" slice threading supported\n");
1779 printf(" Inputs:\n");
1780 count = avfilter_pad_count(f->inputs);
1781 for (i = 0; i < count; i++) {
1782 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1783 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1785 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1786 printf(" dynamic (depending on the options)\n");
1788 printf(" none (source filter)\n");
1790 printf(" Outputs:\n");
1791 count = avfilter_pad_count(f->outputs);
1792 for (i = 0; i < count; i++) {
1793 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1794 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1796 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1797 printf(" dynamic (depending on the options)\n");
1799 printf(" none (sink filter)\n");
1802 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1803 AV_OPT_FLAG_AUDIO_PARAM);
1804 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1805 printf("This filter has support for timeline through the 'enable' option.\n");
1807 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1808 "can not to satisfy request\n");
1813 int show_help(void *optctx, const char *opt, const char *arg)
1816 av_log_set_callback(log_callback_help);
1818 topic = av_strdup(arg ? arg : "");
1819 par = strchr(topic, '=');
1824 show_help_default(topic, par);
1825 } else if (!strcmp(topic, "decoder")) {
1826 show_help_codec(par, 0);
1827 } else if (!strcmp(topic, "encoder")) {
1828 show_help_codec(par, 1);
1829 } else if (!strcmp(topic, "demuxer")) {
1830 show_help_demuxer(par);
1831 } else if (!strcmp(topic, "muxer")) {
1832 show_help_muxer(par);
1834 } else if (!strcmp(topic, "filter")) {
1835 show_help_filter(par);
1838 show_help_default(topic, par);
1845 int read_yesno(void)
1848 int yesno = (av_toupper(c) == 'Y');
1850 while (c != '\n' && c != EOF)
1856 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
1859 FILE *f = av_fopen_utf8(filename, "rb");
1862 ret = AVERROR(errno);
1863 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
1867 fseek(f, 0, SEEK_END);
1869 fseek(f, 0, SEEK_SET);
1870 if (*size == (size_t)-1) {
1871 ret = AVERROR(errno);
1872 av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", strerror(errno));
1876 *bufptr = av_malloc(*size + 1);
1878 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
1880 return AVERROR(ENOMEM);
1882 ret = fread(*bufptr, 1, *size, f);
1886 ret = AVERROR(errno);
1887 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
1888 filename, strerror(errno));
1893 (*bufptr)[(*size)++] = '\0';
1900 FILE *get_preset_file(char *filename, size_t filename_size,
1901 const char *preset_name, int is_path,
1902 const char *codec_name)
1906 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1911 av_strlcpy(filename, preset_name, filename_size);
1912 f = fopen(filename, "r");
1915 char datadir[MAX_PATH], *ls;
1918 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1920 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1921 if (*ls == '\\') *ls = '/';
1923 if (ls = strrchr(datadir, '/'))
1926 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1931 for (i = 0; i < 3 && !f; i++) {
1934 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1935 i != 1 ? "" : "/.ffmpeg", preset_name);
1936 f = fopen(filename, "r");
1937 if (!f && codec_name) {
1938 snprintf(filename, filename_size,
1939 "%s%s/%s-%s.ffpreset",
1940 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1942 f = fopen(filename, "r");
1950 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1952 int ret = avformat_match_stream_specifier(s, st, spec);
1954 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1958 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1959 AVFormatContext *s, AVStream *st, AVCodec *codec)
1961 AVDictionary *ret = NULL;
1962 AVDictionaryEntry *t = NULL;
1963 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1964 : AV_OPT_FLAG_DECODING_PARAM;
1966 const AVClass *cc = avcodec_get_class();
1969 codec = s->oformat ? avcodec_find_encoder(codec_id)
1970 : avcodec_find_decoder(codec_id);
1972 switch (st->codec->codec_type) {
1973 case AVMEDIA_TYPE_VIDEO:
1975 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1977 case AVMEDIA_TYPE_AUDIO:
1979 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1981 case AVMEDIA_TYPE_SUBTITLE:
1983 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1987 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1988 char *p = strchr(t->key, ':');
1990 /* check stream specification in opt name */
1992 switch (check_stream_specifier(s, st, p + 1)) {
1993 case 1: *p = 0; break;
1995 default: exit_program(1);
1998 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2000 (codec->priv_class &&
2001 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2002 AV_OPT_SEARCH_FAKE_OBJ)))
2003 av_dict_set(&ret, t->key, t->value, 0);
2004 else if (t->key[0] == prefix &&
2005 av_opt_find(&cc, t->key + 1, NULL, flags,
2006 AV_OPT_SEARCH_FAKE_OBJ))
2007 av_dict_set(&ret, t->key + 1, t->value, 0);
2015 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2016 AVDictionary *codec_opts)
2019 AVDictionary **opts;
2023 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2025 av_log(NULL, AV_LOG_ERROR,
2026 "Could not alloc memory for stream options.\n");
2029 for (i = 0; i < s->nb_streams; i++)
2030 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
2031 s, s->streams[i], NULL);
2035 void *grow_array(void *array, int elem_size, int *size, int new_size)
2037 if (new_size >= INT_MAX / elem_size) {
2038 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2041 if (*size < new_size) {
2042 uint8_t *tmp = av_realloc(array, new_size*elem_size);
2044 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2047 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2055 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2058 AVFormatContext *dev = NULL;
2059 AVDeviceInfoList *device_list = NULL;
2060 AVDictionary *tmp_opts = NULL;
2062 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2063 return AVERROR(EINVAL);
2065 printf("Audo-detected sources for %s:\n", fmt->name);
2066 if (!fmt->get_device_list) {
2067 ret = AVERROR(ENOSYS);
2068 printf("Cannot list sources. Not implemented.\n");
2072 /* TODO: avformat_open_input calls read_header callback which is not necessary.
2073 Function like avformat_alloc_output_context2 for input could be helpful here. */
2074 av_dict_copy(&tmp_opts, opts, 0);
2075 if ((ret = avformat_open_input(&dev, NULL, fmt, &tmp_opts)) < 0) {
2076 printf("Cannot open device: %s.\n", fmt->name);
2080 if ((ret = avdevice_list_devices(dev, &device_list)) < 0) {
2081 printf("Cannot list sources.\n");
2085 for (i = 0; i < device_list->nb_devices; i++) {
2086 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2087 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2091 av_dict_free(&tmp_opts);
2092 avdevice_free_list_devices(&device_list);
2093 avformat_close_input(&dev);
2097 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2100 AVFormatContext *dev = NULL;
2101 AVDeviceInfoList *device_list = NULL;
2102 AVDictionary *tmp_opts = NULL;
2104 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2105 return AVERROR(EINVAL);
2107 printf("Audo-detected sinks for %s:\n", fmt->name);
2108 if (!fmt->get_device_list) {
2109 ret = AVERROR(ENOSYS);
2110 printf("Cannot list sinks. Not implemented.\n");
2114 if ((ret = avformat_alloc_output_context2(&dev, fmt, NULL, NULL)) < 0) {
2115 printf("Cannot open device: %s.\n", fmt->name);
2118 av_dict_copy(&tmp_opts, opts, 0);
2119 av_opt_set_dict2(dev, &tmp_opts, AV_OPT_SEARCH_CHILDREN);
2121 if ((ret = avdevice_list_devices(dev, &device_list)) < 0) {
2122 printf("Cannot list sinks.\n");
2126 for (i = 0; i < device_list->nb_devices; i++) {
2127 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2128 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2132 av_dict_free(&tmp_opts);
2133 avdevice_free_list_devices(&device_list);
2134 avformat_free_context(dev);
2138 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2142 char *opts_str = NULL;
2143 av_assert0(dev && opts);
2144 *dev = av_strdup(arg);
2146 return AVERROR(ENOMEM);
2147 if ((opts_str = strchr(*dev, ','))) {
2148 *(opts_str++) = '\0';
2149 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2155 printf("\nDevice name is not provided.\n"
2156 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2160 int show_sources(void *optctx, const char *opt, const char *arg)
2162 AVInputFormat *fmt = NULL;
2164 AVDictionary *opts = NULL;
2166 int error_level = av_log_get_level();
2168 av_log_set_level(AV_LOG_ERROR);
2170 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2174 fmt = av_input_audio_device_next(fmt);
2176 if (!strcmp(fmt->name, "lavfi"))
2177 continue; //it's pointless to probe lavfi
2178 if (dev && strcmp(fmt->name, dev))
2180 print_device_sources(fmt, opts);
2184 fmt = av_input_video_device_next(fmt);
2186 if (dev && strcmp(fmt->name, dev))
2188 print_device_sources(fmt, opts);
2192 av_dict_free(&opts);
2194 av_log_set_level(error_level);
2198 int show_sinks(void *optctx, const char *opt, const char *arg)
2200 AVOutputFormat *fmt = NULL;
2202 AVDictionary *opts = NULL;
2204 int error_level = av_log_get_level();
2206 av_log_set_level(AV_LOG_ERROR);
2208 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2212 fmt = av_output_audio_device_next(fmt);
2214 if (dev && strcmp(fmt->name, dev))
2216 print_device_sinks(fmt, opts);
2220 fmt = av_output_video_device_next(fmt);
2222 if (dev && strcmp(fmt->name, dev))
2224 print_device_sinks(fmt, opts);
2228 av_dict_free(&opts);
2230 av_log_set_level(error_level);