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, ':');
295 dstcount = (int *)(so + 1);
296 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
297 str = av_strdup(p ? p + 1 : "");
299 return AVERROR(ENOMEM);
300 (*so)[*dstcount - 1].specifier = str;
301 dst = &(*so)[*dstcount - 1].u;
304 if (po->flags & OPT_STRING) {
306 str = av_strdup(arg);
309 return AVERROR(ENOMEM);
311 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
312 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
313 } else if (po->flags & OPT_INT64) {
314 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
315 } else if (po->flags & OPT_TIME) {
316 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
317 } else if (po->flags & OPT_FLOAT) {
318 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
319 } else if (po->flags & OPT_DOUBLE) {
320 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
321 } else if (po->u.func_arg) {
322 int ret = po->u.func_arg(optctx, opt, arg);
324 av_log(NULL, AV_LOG_ERROR,
325 "Failed to set value '%s' for option '%s': %s\n",
326 arg, opt, av_err2str(ret));
330 if (po->flags & OPT_EXIT)
336 int parse_option(void *optctx, const char *opt, const char *arg,
337 const OptionDef *options)
342 po = find_option(options, opt);
343 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
344 /* handle 'no' bool option */
345 po = find_option(options, opt + 2);
346 if ((po->name && (po->flags & OPT_BOOL)))
348 } else if (po->flags & OPT_BOOL)
352 po = find_option(options, "default");
354 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
355 return AVERROR(EINVAL);
357 if (po->flags & HAS_ARG && !arg) {
358 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
359 return AVERROR(EINVAL);
362 ret = write_option(optctx, po, opt, arg);
366 return !!(po->flags & HAS_ARG);
369 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
370 void (*parse_arg_function)(void *, const char*))
373 int optindex, handleoptions = 1, ret;
375 /* perform system-dependent conversions for arguments list */
376 prepare_app_arguments(&argc, &argv);
380 while (optindex < argc) {
381 opt = argv[optindex++];
383 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
384 if (opt[1] == '-' && opt[2] == '\0') {
390 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
394 if (parse_arg_function)
395 parse_arg_function(optctx, opt);
400 int parse_optgroup(void *optctx, OptionGroup *g)
404 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
405 g->group_def->name, g->arg);
407 for (i = 0; i < g->nb_opts; i++) {
408 Option *o = &g->opts[i];
410 if (g->group_def->flags &&
411 !(g->group_def->flags & o->opt->flags)) {
412 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
413 "%s %s -- you are trying to apply an input option to an "
414 "output file or vice versa. Move this option before the "
415 "file it belongs to.\n", o->key, o->opt->help,
416 g->group_def->name, g->arg);
417 return AVERROR(EINVAL);
420 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
421 o->key, o->opt->help, o->val);
423 ret = write_option(optctx, o->opt, o->key, o->val);
428 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
433 int locate_option(int argc, char **argv, const OptionDef *options,
439 for (i = 1; i < argc; i++) {
440 const char *cur_opt = argv[i];
442 if (*cur_opt++ != '-')
445 po = find_option(options, cur_opt);
446 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
447 po = find_option(options, cur_opt + 2);
449 if ((!po->name && !strcmp(cur_opt, optname)) ||
450 (po->name && !strcmp(optname, po->name)))
453 if (!po->name || po->flags & HAS_ARG)
459 static void dump_argument(const char *a)
461 const unsigned char *p;
464 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
465 *p == '_' || (*p >= 'a' && *p <= 'z')))
468 fputs(a, report_file);
471 fputc('"', report_file);
472 for (p = a; *p; p++) {
473 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
474 fprintf(report_file, "\\%c", *p);
475 else if (*p < ' ' || *p > '~')
476 fprintf(report_file, "\\x%02x", *p);
478 fputc(*p, report_file);
480 fputc('"', report_file);
483 void parse_loglevel(int argc, char **argv, const OptionDef *options)
485 int idx = locate_option(argc, argv, options, "loglevel");
488 idx = locate_option(argc, argv, options, "v");
489 if (idx && argv[idx + 1])
490 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
491 idx = locate_option(argc, argv, options, "report");
492 if ((env = getenv("FFREPORT")) || idx) {
496 fprintf(report_file, "Command line:\n");
497 for (i = 0; i < argc; i++) {
498 dump_argument(argv[i]);
499 fputc(i < argc - 1 ? ' ' : '\n', report_file);
504 idx = locate_option(argc, argv, options, "hide_banner");
509 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
510 int opt_flags, int search_flags)
512 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
518 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
519 int opt_default(void *optctx, const char *opt, const char *arg)
523 char opt_stripped[128];
525 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
526 #if CONFIG_AVRESAMPLE
527 const AVClass *rc = avresample_get_class();
529 const AVClass *sc, *swr_class;
531 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
532 av_log_set_level(AV_LOG_DEBUG);
534 if (!(p = strchr(opt, ':')))
535 p = opt + strlen(opt);
536 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
538 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
539 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
540 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
541 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
542 av_dict_set(&codec_opts, opt, arg, FLAGS);
545 if ((o = opt_find(&fc, opt, NULL, 0,
546 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
547 av_dict_set(&format_opts, opt, arg, FLAGS);
549 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
553 sc = sws_get_class();
554 if (!consumed && opt_find(&sc, opt, NULL, 0,
555 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
556 // XXX we only support sws_flags, not arbitrary sws options
557 int ret = av_opt_set(sws_opts, opt, arg, 0);
559 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
565 if (!consumed && !strcmp(opt, "sws_flags")) {
566 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
570 #if CONFIG_SWRESAMPLE
571 swr_class = swr_get_class();
572 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
573 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
574 struct SwrContext *swr = swr_alloc();
575 int ret = av_opt_set(swr, opt, arg, 0);
578 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
581 av_dict_set(&swr_opts, opt, arg, FLAGS);
585 #if CONFIG_AVRESAMPLE
586 if ((o=opt_find(&rc, opt, NULL, 0,
587 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
588 av_dict_set(&resample_opts, opt, arg, FLAGS);
595 return AVERROR_OPTION_NOT_FOUND;
599 * Check whether given option is a group separator.
601 * @return index of the group definition that matched or -1 if none
603 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
608 for (i = 0; i < nb_groups; i++) {
609 const OptionGroupDef *p = &groups[i];
610 if (p->sep && !strcmp(p->sep, opt))
618 * Finish parsing an option group.
620 * @param group_idx which group definition should this group belong to
621 * @param arg argument of the group delimiting option
623 static void finish_group(OptionParseContext *octx, int group_idx,
626 OptionGroupList *l = &octx->groups[group_idx];
629 GROW_ARRAY(l->groups, l->nb_groups);
630 g = &l->groups[l->nb_groups - 1];
632 *g = octx->cur_group;
634 g->group_def = l->group_def;
636 g->sws_opts = sws_opts;
638 g->swr_opts = swr_opts;
639 g->codec_opts = codec_opts;
640 g->format_opts = format_opts;
641 g->resample_opts = resample_opts;
645 resample_opts = NULL;
652 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
656 * Add an option instance to currently parsed group.
658 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
659 const char *key, const char *val)
661 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
662 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
664 GROW_ARRAY(g->opts, g->nb_opts);
665 g->opts[g->nb_opts - 1].opt = opt;
666 g->opts[g->nb_opts - 1].key = key;
667 g->opts[g->nb_opts - 1].val = val;
670 static void init_parse_context(OptionParseContext *octx,
671 const OptionGroupDef *groups, int nb_groups)
673 static const OptionGroupDef global_group = { "global" };
676 memset(octx, 0, sizeof(*octx));
678 octx->nb_groups = nb_groups;
679 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
683 for (i = 0; i < octx->nb_groups; i++)
684 octx->groups[i].group_def = &groups[i];
686 octx->global_opts.group_def = &global_group;
687 octx->global_opts.arg = "";
692 void uninit_parse_context(OptionParseContext *octx)
696 for (i = 0; i < octx->nb_groups; i++) {
697 OptionGroupList *l = &octx->groups[i];
699 for (j = 0; j < l->nb_groups; j++) {
700 av_freep(&l->groups[j].opts);
701 av_dict_free(&l->groups[j].codec_opts);
702 av_dict_free(&l->groups[j].format_opts);
703 av_dict_free(&l->groups[j].resample_opts);
705 sws_freeContext(l->groups[j].sws_opts);
707 av_dict_free(&l->groups[j].swr_opts);
709 av_freep(&l->groups);
711 av_freep(&octx->groups);
713 av_freep(&octx->cur_group.opts);
714 av_freep(&octx->global_opts.opts);
719 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
720 const OptionDef *options,
721 const OptionGroupDef *groups, int nb_groups)
726 /* perform system-dependent conversions for arguments list */
727 prepare_app_arguments(&argc, &argv);
729 init_parse_context(octx, groups, nb_groups);
730 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
732 while (optindex < argc) {
733 const char *opt = argv[optindex++], *arg;
737 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
739 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
743 /* unnamed group separators, e.g. output filename */
744 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
745 finish_group(octx, 0, opt);
746 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
751 #define GET_ARG(arg) \
753 arg = argv[optindex++]; \
755 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
756 return AVERROR(EINVAL); \
760 /* named group separators, e.g. -i */
761 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
763 finish_group(octx, ret, arg);
764 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
765 groups[ret].name, arg);
770 po = find_option(options, opt);
772 if (po->flags & OPT_EXIT) {
773 /* optional argument, e.g. -h */
774 arg = argv[optindex++];
775 } else if (po->flags & HAS_ARG) {
781 add_opt(octx, po, opt, arg);
782 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
783 "argument '%s'.\n", po->name, po->help, arg);
788 if (argv[optindex]) {
789 ret = opt_default(NULL, opt, argv[optindex]);
791 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
792 "argument '%s'.\n", opt, argv[optindex]);
795 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
796 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
797 "with argument '%s'.\n", opt, argv[optindex]);
802 /* boolean -nofoo options */
803 if (opt[0] == 'n' && opt[1] == 'o' &&
804 (po = find_option(options, opt + 2)) &&
805 po->name && po->flags & OPT_BOOL) {
806 add_opt(octx, po, opt, "0");
807 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
808 "argument 0.\n", po->name, po->help);
812 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
813 return AVERROR_OPTION_NOT_FOUND;
816 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
817 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
820 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
825 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
828 unsigned flags = av_get_cpu_flags();
830 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
833 av_force_cpu_flags(flags);
837 int opt_loglevel(void *optctx, const char *opt, const char *arg)
839 const struct { const char *name; int level; } log_levels[] = {
840 { "quiet" , AV_LOG_QUIET },
841 { "panic" , AV_LOG_PANIC },
842 { "fatal" , AV_LOG_FATAL },
843 { "error" , AV_LOG_ERROR },
844 { "warning", AV_LOG_WARNING },
845 { "info" , AV_LOG_INFO },
846 { "verbose", AV_LOG_VERBOSE },
847 { "debug" , AV_LOG_DEBUG },
854 flags = av_log_get_flags();
855 tail = strstr(arg, "repeat");
857 flags &= ~AV_LOG_SKIP_REPEATED;
859 flags |= AV_LOG_SKIP_REPEATED;
861 av_log_set_flags(flags);
863 arg += 6 + (arg[6]=='+');
867 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
868 if (!strcmp(log_levels[i].name, arg)) {
869 av_log_set_level(log_levels[i].level);
874 level = strtol(arg, &tail, 10);
876 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
877 "Possible levels are numbers or:\n", arg);
878 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
879 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
882 av_log_set_level(level);
886 static void expand_filename_template(AVBPrint *bp, const char *template,
891 while ((c = *(template++))) {
893 if (!(c = *(template++)))
897 av_bprintf(bp, "%s", program_name);
900 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
901 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
902 tm->tm_hour, tm->tm_min, tm->tm_sec);
905 av_bprint_chars(bp, c, 1);
909 av_bprint_chars(bp, c, 1);
914 static int init_report(const char *env)
916 char *filename_template = NULL;
923 if (report_file) /* already opened */
926 tm = localtime(&now);
928 while (env && *env) {
929 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
931 av_log(NULL, AV_LOG_ERROR,
932 "Failed to parse FFREPORT environment variable: %s\n",
939 if (!strcmp(key, "file")) {
940 av_free(filename_template);
941 filename_template = val;
943 } else if (!strcmp(key, "level")) {
945 report_file_level = strtol(val, &tail, 10);
947 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
951 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
957 av_bprint_init(&filename, 0, 1);
958 expand_filename_template(&filename,
959 av_x_if_null(filename_template, "%p-%t.log"), tm);
960 av_free(filename_template);
961 if (!av_bprint_is_complete(&filename)) {
962 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
963 return AVERROR(ENOMEM);
966 report_file = fopen(filename.str, "w");
968 int ret = AVERROR(errno);
969 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
970 filename.str, strerror(errno));
973 av_log_set_callback(log_callback_report);
974 av_log(NULL, AV_LOG_INFO,
975 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
976 "Report written to \"%s\"\n",
978 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
979 tm->tm_hour, tm->tm_min, tm->tm_sec,
981 av_bprint_finalize(&filename, NULL);
985 int opt_report(const char *opt)
987 return init_report(NULL);
990 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
995 max = strtol(arg, &tail, 10);
997 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1004 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1007 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1008 struct rlimit rl = { lim, lim + 1 };
1009 if (setrlimit(RLIMIT_CPU, &rl))
1010 perror("setrlimit");
1012 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1017 void print_error(const char *filename, int err)
1020 const char *errbuf_ptr = errbuf;
1022 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1023 errbuf_ptr = strerror(AVUNERROR(err));
1024 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1027 static int warned_cfg = 0;
1030 #define SHOW_VERSION 2
1031 #define SHOW_CONFIG 4
1032 #define SHOW_COPYRIGHT 8
1034 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1035 if (CONFIG_##LIBNAME) { \
1036 const char *indent = flags & INDENT? " " : ""; \
1037 if (flags & SHOW_VERSION) { \
1038 unsigned int version = libname##_version(); \
1039 av_log(NULL, level, \
1040 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1042 LIB##LIBNAME##_VERSION_MAJOR, \
1043 LIB##LIBNAME##_VERSION_MINOR, \
1044 LIB##LIBNAME##_VERSION_MICRO, \
1045 version >> 16, version >> 8 & 0xff, version & 0xff); \
1047 if (flags & SHOW_CONFIG) { \
1048 const char *cfg = libname##_configuration(); \
1049 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1050 if (!warned_cfg) { \
1051 av_log(NULL, level, \
1052 "%sWARNING: library configuration mismatch\n", \
1056 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1057 indent, #libname, cfg); \
1062 static void print_all_libs_info(int flags, int level)
1064 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1065 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1066 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1067 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1068 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1069 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1070 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1071 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
1072 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1075 static void print_program_info(int flags, int level)
1077 const char *indent = flags & INDENT? " " : "";
1079 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1080 if (flags & SHOW_COPYRIGHT)
1081 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1082 program_birth_year, CONFIG_THIS_YEAR);
1083 av_log(NULL, level, "\n");
1084 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1086 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1089 static void print_buildconf(int flags, int level)
1091 const char *indent = flags & INDENT ? " " : "";
1092 char str[] = { FFMPEG_CONFIGURATION };
1093 char *conflist, *remove_tilde, *splitconf;
1095 // Change all the ' --' strings to '~--' so that
1096 // they can be identified as tokens.
1097 while ((conflist = strstr(str, " --")) != NULL) {
1098 strncpy(conflist, "~--", 3);
1101 // Compensate for the weirdness this would cause
1102 // when passing 'pkg-config --static'.
1103 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1104 strncpy(remove_tilde, "pkg-config ", 11);
1107 splitconf = strtok(str, "~");
1108 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1109 while (splitconf != NULL) {
1110 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1111 splitconf = strtok(NULL, "~");
1115 void show_banner(int argc, char **argv, const OptionDef *options)
1117 int idx = locate_option(argc, argv, options, "version");
1118 if (hide_banner || idx)
1121 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1122 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1123 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1126 int show_version(void *optctx, const char *opt, const char *arg)
1128 av_log_set_callback(log_callback_help);
1129 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1130 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1135 int show_buildconf(void *optctx, const char *opt, const char *arg)
1137 av_log_set_callback(log_callback_help);
1138 print_buildconf (INDENT|0, AV_LOG_INFO);
1143 int show_license(void *optctx, const char *opt, const char *arg)
1147 "This version of %s has nonfree parts compiled in.\n"
1148 "Therefore it is not legally redistributable.\n",
1152 "%s is free software; you can redistribute it and/or modify\n"
1153 "it under the terms of the GNU General Public License as published by\n"
1154 "the Free Software Foundation; either version 3 of the License, or\n"
1155 "(at your option) any later version.\n"
1157 "%s is distributed in the hope that it will be useful,\n"
1158 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1159 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1160 "GNU General Public License for more details.\n"
1162 "You should have received a copy of the GNU General Public License\n"
1163 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1164 program_name, program_name, program_name );
1167 "%s is free software; you can redistribute it and/or modify\n"
1168 "it under the terms of the GNU General Public License as published by\n"
1169 "the Free Software Foundation; either version 2 of the License, or\n"
1170 "(at your option) any later version.\n"
1172 "%s is distributed in the hope that it will be useful,\n"
1173 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1174 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1175 "GNU General Public License for more details.\n"
1177 "You should have received a copy of the GNU General Public License\n"
1178 "along with %s; if not, write to the Free Software\n"
1179 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1180 program_name, program_name, program_name );
1183 "%s is free software; you can redistribute it and/or modify\n"
1184 "it under the terms of the GNU Lesser General Public License as published by\n"
1185 "the Free Software Foundation; either version 3 of the License, or\n"
1186 "(at your option) any later version.\n"
1188 "%s is distributed in the hope that it will be useful,\n"
1189 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1190 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1191 "GNU Lesser General Public License for more details.\n"
1193 "You should have received a copy of the GNU Lesser General Public License\n"
1194 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1195 program_name, program_name, program_name );
1198 "%s is free software; you can redistribute it and/or\n"
1199 "modify it under the terms of the GNU Lesser General Public\n"
1200 "License as published by the Free Software Foundation; either\n"
1201 "version 2.1 of the License, or (at your option) any later version.\n"
1203 "%s is distributed in the hope that it will be useful,\n"
1204 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1205 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1206 "Lesser General Public License for more details.\n"
1208 "You should have received a copy of the GNU Lesser General Public\n"
1209 "License along with %s; if not, write to the Free Software\n"
1210 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1211 program_name, program_name, program_name );
1217 static int is_device(const AVClass *avclass)
1221 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
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 : "");
1825 return AVERROR(ENOMEM);
1826 par = strchr(topic, '=');
1831 show_help_default(topic, par);
1832 } else if (!strcmp(topic, "decoder")) {
1833 show_help_codec(par, 0);
1834 } else if (!strcmp(topic, "encoder")) {
1835 show_help_codec(par, 1);
1836 } else if (!strcmp(topic, "demuxer")) {
1837 show_help_demuxer(par);
1838 } else if (!strcmp(topic, "muxer")) {
1839 show_help_muxer(par);
1841 } else if (!strcmp(topic, "filter")) {
1842 show_help_filter(par);
1845 show_help_default(topic, par);
1852 int read_yesno(void)
1855 int yesno = (av_toupper(c) == 'Y');
1857 while (c != '\n' && c != EOF)
1863 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
1866 FILE *f = av_fopen_utf8(filename, "rb");
1869 ret = AVERROR(errno);
1870 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
1875 ret = fseek(f, 0, SEEK_END);
1877 ret = AVERROR(errno);
1883 ret = AVERROR(errno);
1888 ret = fseek(f, 0, SEEK_SET);
1890 ret = AVERROR(errno);
1894 *bufptr = av_malloc(*size + 1);
1896 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
1897 ret = AVERROR(ENOMEM);
1900 ret = fread(*bufptr, 1, *size, f);
1904 ret = AVERROR(errno);
1905 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
1906 filename, strerror(errno));
1911 (*bufptr)[(*size)++] = '\0';
1915 av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", av_err2str(ret));
1920 FILE *get_preset_file(char *filename, size_t filename_size,
1921 const char *preset_name, int is_path,
1922 const char *codec_name)
1926 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1931 av_strlcpy(filename, preset_name, filename_size);
1932 f = fopen(filename, "r");
1935 char datadir[MAX_PATH], *ls;
1938 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1940 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1941 if (*ls == '\\') *ls = '/';
1943 if (ls = strrchr(datadir, '/'))
1946 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1951 for (i = 0; i < 3 && !f; i++) {
1954 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1955 i != 1 ? "" : "/.ffmpeg", preset_name);
1956 f = fopen(filename, "r");
1957 if (!f && codec_name) {
1958 snprintf(filename, filename_size,
1959 "%s%s/%s-%s.ffpreset",
1960 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1962 f = fopen(filename, "r");
1970 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1972 int ret = avformat_match_stream_specifier(s, st, spec);
1974 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1978 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1979 AVFormatContext *s, AVStream *st, AVCodec *codec)
1981 AVDictionary *ret = NULL;
1982 AVDictionaryEntry *t = NULL;
1983 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1984 : AV_OPT_FLAG_DECODING_PARAM;
1986 const AVClass *cc = avcodec_get_class();
1989 codec = s->oformat ? avcodec_find_encoder(codec_id)
1990 : avcodec_find_decoder(codec_id);
1992 switch (st->codec->codec_type) {
1993 case AVMEDIA_TYPE_VIDEO:
1995 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1997 case AVMEDIA_TYPE_AUDIO:
1999 flags |= AV_OPT_FLAG_AUDIO_PARAM;
2001 case AVMEDIA_TYPE_SUBTITLE:
2003 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
2007 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2008 char *p = strchr(t->key, ':');
2010 /* check stream specification in opt name */
2012 switch (check_stream_specifier(s, st, p + 1)) {
2013 case 1: *p = 0; break;
2015 default: exit_program(1);
2018 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2020 (codec->priv_class &&
2021 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2022 AV_OPT_SEARCH_FAKE_OBJ)))
2023 av_dict_set(&ret, t->key, t->value, 0);
2024 else if (t->key[0] == prefix &&
2025 av_opt_find(&cc, t->key + 1, NULL, flags,
2026 AV_OPT_SEARCH_FAKE_OBJ))
2027 av_dict_set(&ret, t->key + 1, t->value, 0);
2035 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2036 AVDictionary *codec_opts)
2039 AVDictionary **opts;
2043 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2045 av_log(NULL, AV_LOG_ERROR,
2046 "Could not alloc memory for stream options.\n");
2049 for (i = 0; i < s->nb_streams; i++)
2050 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
2051 s, s->streams[i], NULL);
2055 void *grow_array(void *array, int elem_size, int *size, int new_size)
2057 if (new_size >= INT_MAX / elem_size) {
2058 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2061 if (*size < new_size) {
2062 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2064 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2067 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2075 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2078 AVDeviceInfoList *device_list = NULL;
2080 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2081 return AVERROR(EINVAL);
2083 printf("Audo-detected sources for %s:\n", fmt->name);
2084 if (!fmt->get_device_list) {
2085 ret = AVERROR(ENOSYS);
2086 printf("Cannot list sources. Not implemented.\n");
2090 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2091 printf("Cannot list sources.\n");
2095 for (i = 0; i < device_list->nb_devices; i++) {
2096 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2097 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2101 avdevice_free_list_devices(&device_list);
2105 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2108 AVDeviceInfoList *device_list = NULL;
2110 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2111 return AVERROR(EINVAL);
2113 printf("Audo-detected sinks for %s:\n", fmt->name);
2114 if (!fmt->get_device_list) {
2115 ret = AVERROR(ENOSYS);
2116 printf("Cannot list sinks. Not implemented.\n");
2120 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2121 printf("Cannot list sinks.\n");
2125 for (i = 0; i < device_list->nb_devices; i++) {
2126 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2127 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2131 avdevice_free_list_devices(&device_list);
2135 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2139 char *opts_str = NULL;
2140 av_assert0(dev && opts);
2141 *dev = av_strdup(arg);
2143 return AVERROR(ENOMEM);
2144 if ((opts_str = strchr(*dev, ','))) {
2145 *(opts_str++) = '\0';
2146 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2152 printf("\nDevice name is not provided.\n"
2153 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2157 int show_sources(void *optctx, const char *opt, const char *arg)
2159 AVInputFormat *fmt = NULL;
2161 AVDictionary *opts = NULL;
2163 int error_level = av_log_get_level();
2165 av_log_set_level(AV_LOG_ERROR);
2167 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2171 fmt = av_input_audio_device_next(fmt);
2173 if (!strcmp(fmt->name, "lavfi"))
2174 continue; //it's pointless to probe lavfi
2175 if (dev && !av_match_name(dev, fmt->name))
2177 print_device_sources(fmt, opts);
2181 fmt = av_input_video_device_next(fmt);
2183 if (dev && !av_match_name(dev, fmt->name))
2185 print_device_sources(fmt, opts);
2189 av_dict_free(&opts);
2191 av_log_set_level(error_level);
2195 int show_sinks(void *optctx, const char *opt, const char *arg)
2197 AVOutputFormat *fmt = NULL;
2199 AVDictionary *opts = NULL;
2201 int error_level = av_log_get_level();
2203 av_log_set_level(AV_LOG_ERROR);
2205 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2209 fmt = av_output_audio_device_next(fmt);
2211 if (dev && !av_match_name(dev, fmt->name))
2213 print_device_sinks(fmt, opts);
2217 fmt = av_output_video_device_next(fmt);
2219 if (dev && !av_match_name(dev, fmt->name))
2221 print_device_sinks(fmt, opts);
2225 av_dict_free(&opts);
2227 av_log_set_level(error_level);