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/display.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/pixdesc.h"
50 #include "libavutil/eval.h"
51 #include "libavutil/dict.h"
52 #include "libavutil/opt.h"
53 #include "libavutil/cpu.h"
54 #include "libavutil/ffversion.h"
57 #include "libavformat/network.h"
59 #if HAVE_SYS_RESOURCE_H
61 #include <sys/resource.h>
64 static int init_report(const char *env);
66 struct SwsContext *sws_opts;
67 AVDictionary *swr_opts;
68 AVDictionary *format_opts, *codec_opts, *resample_opts;
70 static FILE *report_file;
71 static int report_file_level = AV_LOG_DEBUG;
78 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
82 void uninit_opts(void)
85 sws_freeContext(sws_opts);
89 av_dict_free(&swr_opts);
90 av_dict_free(&format_opts);
91 av_dict_free(&codec_opts);
92 av_dict_free(&resample_opts);
95 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
97 vfprintf(stdout, fmt, vl);
100 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
104 static int print_prefix = 1;
107 av_log_default_callback(ptr, level, fmt, vl);
108 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
110 if (report_file_level >= level) {
111 fputs(line, report_file);
116 static void (*program_exit)(int ret);
118 void register_exit(void (*cb)(int ret))
123 void exit_program(int ret)
131 double parse_number_or_die(const char *context, const char *numstr, int type,
132 double min, double max)
136 double d = av_strtod(numstr, &tail);
138 error = "Expected number for %s but found: %s\n";
139 else if (d < min || d > max)
140 error = "The value for %s was %s which is not within %f - %f\n";
141 else if (type == OPT_INT64 && (int64_t)d != d)
142 error = "Expected int64 for %s but found %s\n";
143 else if (type == OPT_INT && (int)d != d)
144 error = "Expected int for %s but found %s\n";
147 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
152 int64_t parse_time_or_die(const char *context, const char *timestr,
156 if (av_parse_time(&us, timestr, is_duration) < 0) {
157 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
158 is_duration ? "duration" : "date", context, timestr);
164 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
165 int rej_flags, int alt_flags)
171 for (po = options; po->name; po++) {
174 if (((po->flags & req_flags) != req_flags) ||
175 (alt_flags && !(po->flags & alt_flags)) ||
176 (po->flags & rej_flags))
183 av_strlcpy(buf, po->name, sizeof(buf));
185 av_strlcat(buf, " ", sizeof(buf));
186 av_strlcat(buf, po->argname, sizeof(buf));
188 printf("-%-17s %s\n", buf, po->help);
193 void show_help_children(const AVClass *class, int flags)
195 const AVClass *child = NULL;
197 av_opt_show2(&class, NULL, flags, 0);
201 while (child = av_opt_child_class_next(class, child))
202 show_help_children(child, flags);
205 static const OptionDef *find_option(const OptionDef *po, const char *name)
207 const char *p = strchr(name, ':');
208 int len = p ? p - name : strlen(name);
211 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
218 /* _WIN32 means using the windows libc - cygwin doesn't define that
219 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
220 * it doesn't provide the actual command line via GetCommandLineW(). */
221 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
223 #include <shellapi.h>
224 /* Will be leaked on exit */
225 static char** win32_argv_utf8 = NULL;
226 static int win32_argc = 0;
229 * Prepare command line arguments for executable.
230 * For Windows - perform wide-char to UTF-8 conversion.
231 * Input arguments should be main() function arguments.
232 * @param argc_ptr Arguments number (including executable)
233 * @param argv_ptr Arguments list.
235 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
239 int i, buffsize = 0, offset = 0;
241 if (win32_argv_utf8) {
242 *argc_ptr = win32_argc;
243 *argv_ptr = win32_argv_utf8;
248 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
249 if (win32_argc <= 0 || !argv_w)
252 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
253 for (i = 0; i < win32_argc; i++)
254 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
255 NULL, 0, NULL, NULL);
257 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
258 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
259 if (!win32_argv_utf8) {
264 for (i = 0; i < win32_argc; i++) {
265 win32_argv_utf8[i] = &argstr_flat[offset];
266 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
267 &argstr_flat[offset],
268 buffsize - offset, NULL, NULL);
270 win32_argv_utf8[i] = NULL;
273 *argc_ptr = win32_argc;
274 *argv_ptr = win32_argv_utf8;
277 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
281 #endif /* HAVE_COMMANDLINETOARGVW */
283 static int write_option(void *optctx, const OptionDef *po, const char *opt,
286 /* new-style options contain an offset into optctx, old-style address of
288 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
289 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
292 if (po->flags & OPT_SPEC) {
293 SpecifierOpt **so = dst;
294 char *p = strchr(opt, ':');
297 dstcount = (int *)(so + 1);
298 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
299 str = av_strdup(p ? p + 1 : "");
301 return AVERROR(ENOMEM);
302 (*so)[*dstcount - 1].specifier = str;
303 dst = &(*so)[*dstcount - 1].u;
306 if (po->flags & OPT_STRING) {
308 str = av_strdup(arg);
311 return AVERROR(ENOMEM);
313 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
314 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
315 } else if (po->flags & OPT_INT64) {
316 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
317 } else if (po->flags & OPT_TIME) {
318 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
319 } else if (po->flags & OPT_FLOAT) {
320 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
321 } else if (po->flags & OPT_DOUBLE) {
322 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
323 } else if (po->u.func_arg) {
324 int ret = po->u.func_arg(optctx, opt, arg);
326 av_log(NULL, AV_LOG_ERROR,
327 "Failed to set value '%s' for option '%s': %s\n",
328 arg, opt, av_err2str(ret));
332 if (po->flags & OPT_EXIT)
338 int parse_option(void *optctx, const char *opt, const char *arg,
339 const OptionDef *options)
344 po = find_option(options, opt);
345 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
346 /* handle 'no' bool option */
347 po = find_option(options, opt + 2);
348 if ((po->name && (po->flags & OPT_BOOL)))
350 } else if (po->flags & OPT_BOOL)
354 po = find_option(options, "default");
356 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
357 return AVERROR(EINVAL);
359 if (po->flags & HAS_ARG && !arg) {
360 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
361 return AVERROR(EINVAL);
364 ret = write_option(optctx, po, opt, arg);
368 return !!(po->flags & HAS_ARG);
371 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
372 void (*parse_arg_function)(void *, const char*))
375 int optindex, handleoptions = 1, ret;
377 /* perform system-dependent conversions for arguments list */
378 prepare_app_arguments(&argc, &argv);
382 while (optindex < argc) {
383 opt = argv[optindex++];
385 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
386 if (opt[1] == '-' && opt[2] == '\0') {
392 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
396 if (parse_arg_function)
397 parse_arg_function(optctx, opt);
402 int parse_optgroup(void *optctx, OptionGroup *g)
406 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
407 g->group_def->name, g->arg);
409 for (i = 0; i < g->nb_opts; i++) {
410 Option *o = &g->opts[i];
412 if (g->group_def->flags &&
413 !(g->group_def->flags & o->opt->flags)) {
414 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
415 "%s %s -- you are trying to apply an input option to an "
416 "output file or vice versa. Move this option before the "
417 "file it belongs to.\n", o->key, o->opt->help,
418 g->group_def->name, g->arg);
419 return AVERROR(EINVAL);
422 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
423 o->key, o->opt->help, o->val);
425 ret = write_option(optctx, o->opt, o->key, o->val);
430 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
435 int locate_option(int argc, char **argv, const OptionDef *options,
441 for (i = 1; i < argc; i++) {
442 const char *cur_opt = argv[i];
444 if (*cur_opt++ != '-')
447 po = find_option(options, cur_opt);
448 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
449 po = find_option(options, cur_opt + 2);
451 if ((!po->name && !strcmp(cur_opt, optname)) ||
452 (po->name && !strcmp(optname, po->name)))
455 if (!po->name || po->flags & HAS_ARG)
461 static void dump_argument(const char *a)
463 const unsigned char *p;
466 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
467 *p == '_' || (*p >= 'a' && *p <= 'z')))
470 fputs(a, report_file);
473 fputc('"', report_file);
474 for (p = a; *p; p++) {
475 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
476 fprintf(report_file, "\\%c", *p);
477 else if (*p < ' ' || *p > '~')
478 fprintf(report_file, "\\x%02x", *p);
480 fputc(*p, report_file);
482 fputc('"', report_file);
485 static void check_options(const OptionDef *po)
488 if (po->flags & OPT_PERFILE)
489 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
494 void parse_loglevel(int argc, char **argv, const OptionDef *options)
496 int idx = locate_option(argc, argv, options, "loglevel");
499 check_options(options);
502 idx = locate_option(argc, argv, options, "v");
503 if (idx && argv[idx + 1])
504 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
505 idx = locate_option(argc, argv, options, "report");
506 if ((env = getenv("FFREPORT")) || idx) {
510 fprintf(report_file, "Command line:\n");
511 for (i = 0; i < argc; i++) {
512 dump_argument(argv[i]);
513 fputc(i < argc - 1 ? ' ' : '\n', report_file);
518 idx = locate_option(argc, argv, options, "hide_banner");
523 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
524 int opt_flags, int search_flags)
526 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
532 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
533 int opt_default(void *optctx, const char *opt, const char *arg)
537 char opt_stripped[128];
539 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
540 #if CONFIG_AVRESAMPLE
541 const AVClass *rc = avresample_get_class();
543 const AVClass *sc, *swr_class;
545 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
546 av_log_set_level(AV_LOG_DEBUG);
548 if (!(p = strchr(opt, ':')))
549 p = opt + strlen(opt);
550 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
552 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
553 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
554 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
555 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
556 av_dict_set(&codec_opts, opt, arg, FLAGS);
559 if ((o = opt_find(&fc, opt, NULL, 0,
560 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
561 av_dict_set(&format_opts, opt, arg, FLAGS);
563 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
567 sc = sws_get_class();
568 if (!consumed && opt_find(&sc, opt, NULL, 0,
569 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
570 // XXX we only support sws_flags, not arbitrary sws options
571 int ret = av_opt_set(sws_opts, opt, arg, 0);
573 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
579 if (!consumed && !strcmp(opt, "sws_flags")) {
580 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
584 #if CONFIG_SWRESAMPLE
585 swr_class = swr_get_class();
586 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
587 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
588 struct SwrContext *swr = swr_alloc();
589 int ret = av_opt_set(swr, opt, arg, 0);
592 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
595 av_dict_set(&swr_opts, opt, arg, FLAGS);
599 #if CONFIG_AVRESAMPLE
600 if ((o=opt_find(&rc, opt, NULL, 0,
601 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
602 av_dict_set(&resample_opts, opt, arg, FLAGS);
609 return AVERROR_OPTION_NOT_FOUND;
613 * Check whether given option is a group separator.
615 * @return index of the group definition that matched or -1 if none
617 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
622 for (i = 0; i < nb_groups; i++) {
623 const OptionGroupDef *p = &groups[i];
624 if (p->sep && !strcmp(p->sep, opt))
632 * Finish parsing an option group.
634 * @param group_idx which group definition should this group belong to
635 * @param arg argument of the group delimiting option
637 static void finish_group(OptionParseContext *octx, int group_idx,
640 OptionGroupList *l = &octx->groups[group_idx];
643 GROW_ARRAY(l->groups, l->nb_groups);
644 g = &l->groups[l->nb_groups - 1];
646 *g = octx->cur_group;
648 g->group_def = l->group_def;
650 g->sws_opts = sws_opts;
652 g->swr_opts = swr_opts;
653 g->codec_opts = codec_opts;
654 g->format_opts = format_opts;
655 g->resample_opts = resample_opts;
659 resample_opts = NULL;
666 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
670 * Add an option instance to currently parsed group.
672 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
673 const char *key, const char *val)
675 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
676 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
678 GROW_ARRAY(g->opts, g->nb_opts);
679 g->opts[g->nb_opts - 1].opt = opt;
680 g->opts[g->nb_opts - 1].key = key;
681 g->opts[g->nb_opts - 1].val = val;
684 static void init_parse_context(OptionParseContext *octx,
685 const OptionGroupDef *groups, int nb_groups)
687 static const OptionGroupDef global_group = { "global" };
690 memset(octx, 0, sizeof(*octx));
692 octx->nb_groups = nb_groups;
693 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
697 for (i = 0; i < octx->nb_groups; i++)
698 octx->groups[i].group_def = &groups[i];
700 octx->global_opts.group_def = &global_group;
701 octx->global_opts.arg = "";
706 void uninit_parse_context(OptionParseContext *octx)
710 for (i = 0; i < octx->nb_groups; i++) {
711 OptionGroupList *l = &octx->groups[i];
713 for (j = 0; j < l->nb_groups; j++) {
714 av_freep(&l->groups[j].opts);
715 av_dict_free(&l->groups[j].codec_opts);
716 av_dict_free(&l->groups[j].format_opts);
717 av_dict_free(&l->groups[j].resample_opts);
719 sws_freeContext(l->groups[j].sws_opts);
721 av_dict_free(&l->groups[j].swr_opts);
723 av_freep(&l->groups);
725 av_freep(&octx->groups);
727 av_freep(&octx->cur_group.opts);
728 av_freep(&octx->global_opts.opts);
733 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
734 const OptionDef *options,
735 const OptionGroupDef *groups, int nb_groups)
740 /* perform system-dependent conversions for arguments list */
741 prepare_app_arguments(&argc, &argv);
743 init_parse_context(octx, groups, nb_groups);
744 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
746 while (optindex < argc) {
747 const char *opt = argv[optindex++], *arg;
751 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
753 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
757 /* unnamed group separators, e.g. output filename */
758 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
759 finish_group(octx, 0, opt);
760 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
765 #define GET_ARG(arg) \
767 arg = argv[optindex++]; \
769 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
770 return AVERROR(EINVAL); \
774 /* named group separators, e.g. -i */
775 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
777 finish_group(octx, ret, arg);
778 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
779 groups[ret].name, arg);
784 po = find_option(options, opt);
786 if (po->flags & OPT_EXIT) {
787 /* optional argument, e.g. -h */
788 arg = argv[optindex++];
789 } else if (po->flags & HAS_ARG) {
795 add_opt(octx, po, opt, arg);
796 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
797 "argument '%s'.\n", po->name, po->help, arg);
802 if (argv[optindex]) {
803 ret = opt_default(NULL, opt, argv[optindex]);
805 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
806 "argument '%s'.\n", opt, argv[optindex]);
809 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
810 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
811 "with argument '%s'.\n", opt, argv[optindex]);
816 /* boolean -nofoo options */
817 if (opt[0] == 'n' && opt[1] == 'o' &&
818 (po = find_option(options, opt + 2)) &&
819 po->name && po->flags & OPT_BOOL) {
820 add_opt(octx, po, opt, "0");
821 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
822 "argument 0.\n", po->name, po->help);
826 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
827 return AVERROR_OPTION_NOT_FOUND;
830 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
831 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
834 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
839 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
842 unsigned flags = av_get_cpu_flags();
844 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
847 av_force_cpu_flags(flags);
851 int opt_loglevel(void *optctx, const char *opt, const char *arg)
853 const struct { const char *name; int level; } log_levels[] = {
854 { "quiet" , AV_LOG_QUIET },
855 { "panic" , AV_LOG_PANIC },
856 { "fatal" , AV_LOG_FATAL },
857 { "error" , AV_LOG_ERROR },
858 { "warning", AV_LOG_WARNING },
859 { "info" , AV_LOG_INFO },
860 { "verbose", AV_LOG_VERBOSE },
861 { "debug" , AV_LOG_DEBUG },
862 { "trace" , AV_LOG_TRACE },
869 flags = av_log_get_flags();
870 tail = strstr(arg, "repeat");
872 flags &= ~AV_LOG_SKIP_REPEATED;
874 flags |= AV_LOG_SKIP_REPEATED;
876 av_log_set_flags(flags);
878 arg += 6 + (arg[6]=='+');
882 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
883 if (!strcmp(log_levels[i].name, arg)) {
884 av_log_set_level(log_levels[i].level);
889 level = strtol(arg, &tail, 10);
891 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
892 "Possible levels are numbers or:\n", arg);
893 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
894 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
897 av_log_set_level(level);
901 static void expand_filename_template(AVBPrint *bp, const char *template,
906 while ((c = *(template++))) {
908 if (!(c = *(template++)))
912 av_bprintf(bp, "%s", program_name);
915 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
916 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
917 tm->tm_hour, tm->tm_min, tm->tm_sec);
920 av_bprint_chars(bp, c, 1);
924 av_bprint_chars(bp, c, 1);
929 static int init_report(const char *env)
931 char *filename_template = NULL;
938 if (report_file) /* already opened */
941 tm = localtime(&now);
943 while (env && *env) {
944 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
946 av_log(NULL, AV_LOG_ERROR,
947 "Failed to parse FFREPORT environment variable: %s\n",
954 if (!strcmp(key, "file")) {
955 av_free(filename_template);
956 filename_template = val;
958 } else if (!strcmp(key, "level")) {
960 report_file_level = strtol(val, &tail, 10);
962 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
966 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
972 av_bprint_init(&filename, 0, 1);
973 expand_filename_template(&filename,
974 av_x_if_null(filename_template, "%p-%t.log"), tm);
975 av_free(filename_template);
976 if (!av_bprint_is_complete(&filename)) {
977 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
978 return AVERROR(ENOMEM);
981 report_file = fopen(filename.str, "w");
983 int ret = AVERROR(errno);
984 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
985 filename.str, strerror(errno));
988 av_log_set_callback(log_callback_report);
989 av_log(NULL, AV_LOG_INFO,
990 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
991 "Report written to \"%s\"\n",
993 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
994 tm->tm_hour, tm->tm_min, tm->tm_sec,
996 av_bprint_finalize(&filename, NULL);
1000 int opt_report(const char *opt)
1002 return init_report(NULL);
1005 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1010 max = strtol(arg, &tail, 10);
1012 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1019 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1022 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1023 struct rlimit rl = { lim, lim + 1 };
1024 if (setrlimit(RLIMIT_CPU, &rl))
1025 perror("setrlimit");
1027 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1032 void print_error(const char *filename, int err)
1035 const char *errbuf_ptr = errbuf;
1037 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1038 errbuf_ptr = strerror(AVUNERROR(err));
1039 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1042 static int warned_cfg = 0;
1045 #define SHOW_VERSION 2
1046 #define SHOW_CONFIG 4
1047 #define SHOW_COPYRIGHT 8
1049 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1050 if (CONFIG_##LIBNAME) { \
1051 const char *indent = flags & INDENT? " " : ""; \
1052 if (flags & SHOW_VERSION) { \
1053 unsigned int version = libname##_version(); \
1054 av_log(NULL, level, \
1055 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1057 LIB##LIBNAME##_VERSION_MAJOR, \
1058 LIB##LIBNAME##_VERSION_MINOR, \
1059 LIB##LIBNAME##_VERSION_MICRO, \
1060 version >> 16, version >> 8 & 0xff, version & 0xff); \
1062 if (flags & SHOW_CONFIG) { \
1063 const char *cfg = libname##_configuration(); \
1064 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1065 if (!warned_cfg) { \
1066 av_log(NULL, level, \
1067 "%sWARNING: library configuration mismatch\n", \
1071 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1072 indent, #libname, cfg); \
1077 static void print_all_libs_info(int flags, int level)
1079 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1080 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1081 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1082 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1083 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1084 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1085 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1086 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
1087 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1090 static void print_program_info(int flags, int level)
1092 const char *indent = flags & INDENT? " " : "";
1094 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1095 if (flags & SHOW_COPYRIGHT)
1096 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1097 program_birth_year, CONFIG_THIS_YEAR);
1098 av_log(NULL, level, "\n");
1099 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1101 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1104 static void print_buildconf(int flags, int level)
1106 const char *indent = flags & INDENT ? " " : "";
1107 char str[] = { FFMPEG_CONFIGURATION };
1108 char *conflist, *remove_tilde, *splitconf;
1110 // Change all the ' --' strings to '~--' so that
1111 // they can be identified as tokens.
1112 while ((conflist = strstr(str, " --")) != NULL) {
1113 strncpy(conflist, "~--", 3);
1116 // Compensate for the weirdness this would cause
1117 // when passing 'pkg-config --static'.
1118 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1119 strncpy(remove_tilde, "pkg-config ", 11);
1122 splitconf = strtok(str, "~");
1123 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1124 while (splitconf != NULL) {
1125 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1126 splitconf = strtok(NULL, "~");
1130 void show_banner(int argc, char **argv, const OptionDef *options)
1132 int idx = locate_option(argc, argv, options, "version");
1133 if (hide_banner || idx)
1136 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1137 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1138 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1141 int show_version(void *optctx, const char *opt, const char *arg)
1143 av_log_set_callback(log_callback_help);
1144 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1145 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1150 int show_buildconf(void *optctx, const char *opt, const char *arg)
1152 av_log_set_callback(log_callback_help);
1153 print_buildconf (INDENT|0, AV_LOG_INFO);
1158 int show_license(void *optctx, const char *opt, const char *arg)
1162 "This version of %s has nonfree parts compiled in.\n"
1163 "Therefore it is not legally redistributable.\n",
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 3 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, see <http://www.gnu.org/licenses/>.\n",
1179 program_name, program_name, program_name );
1182 "%s is free software; you can redistribute it and/or modify\n"
1183 "it under the terms of the GNU General Public License as published by\n"
1184 "the Free Software Foundation; either version 2 of the License, or\n"
1185 "(at your option) any later version.\n"
1187 "%s is distributed in the hope that it will be useful,\n"
1188 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1189 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1190 "GNU General Public License for more details.\n"
1192 "You should have received a copy of the GNU General Public License\n"
1193 "along with %s; if not, write to the Free Software\n"
1194 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1195 program_name, program_name, program_name );
1198 "%s is free software; you can redistribute it and/or modify\n"
1199 "it under the terms of the GNU Lesser General Public License as published by\n"
1200 "the Free Software Foundation; either version 3 of the License, or\n"
1201 "(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\n"
1206 "GNU Lesser General Public License for more details.\n"
1208 "You should have received a copy of the GNU Lesser General Public License\n"
1209 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1210 program_name, program_name, program_name );
1213 "%s is free software; you can redistribute it and/or\n"
1214 "modify it under the terms of the GNU Lesser General Public\n"
1215 "License as published by the Free Software Foundation; either\n"
1216 "version 2.1 of the License, or (at your option) any later version.\n"
1218 "%s is distributed in the hope that it will be useful,\n"
1219 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1220 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1221 "Lesser General Public License for more details.\n"
1223 "You should have received a copy of the GNU Lesser General Public\n"
1224 "License along with %s; if not, write to the Free Software\n"
1225 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1226 program_name, program_name, program_name );
1232 static int is_device(const AVClass *avclass)
1236 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1239 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
1241 AVInputFormat *ifmt = NULL;
1242 AVOutputFormat *ofmt = NULL;
1243 const char *last_name;
1247 " D. = Demuxing supported\n"
1248 " .E = Muxing supported\n"
1249 " --\n", device_only ? "Devices:" : "File formats:");
1254 const char *name = NULL;
1255 const char *long_name = NULL;
1257 while ((ofmt = av_oformat_next(ofmt))) {
1258 is_dev = is_device(ofmt->priv_class);
1259 if (!is_dev && device_only)
1261 if ((!name || strcmp(ofmt->name, name) < 0) &&
1262 strcmp(ofmt->name, last_name) > 0) {
1264 long_name = ofmt->long_name;
1268 while ((ifmt = av_iformat_next(ifmt))) {
1269 is_dev = is_device(ifmt->priv_class);
1270 if (!is_dev && device_only)
1272 if ((!name || strcmp(ifmt->name, name) < 0) &&
1273 strcmp(ifmt->name, last_name) > 0) {
1275 long_name = ifmt->long_name;
1278 if (name && strcmp(ifmt->name, name) == 0)
1285 printf(" %s%s %-15s %s\n",
1289 long_name ? long_name:" ");
1294 int show_formats(void *optctx, const char *opt, const char *arg)
1296 return show_formats_devices(optctx, opt, arg, 0);
1299 int show_devices(void *optctx, const char *opt, const char *arg)
1301 return show_formats_devices(optctx, opt, arg, 1);
1304 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1305 if (codec->field) { \
1306 const type *p = codec->field; \
1308 printf(" Supported " list_name ":"); \
1309 while (*p != term) { \
1311 printf(" %s", name); \
1317 static void print_codec(const AVCodec *c)
1319 int encoder = av_codec_is_encoder(c);
1321 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1322 c->long_name ? c->long_name : "");
1324 if (c->type == AVMEDIA_TYPE_VIDEO ||
1325 c->type == AVMEDIA_TYPE_AUDIO) {
1326 printf(" Threading capabilities: ");
1327 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1328 AV_CODEC_CAP_SLICE_THREADS)) {
1329 case AV_CODEC_CAP_FRAME_THREADS |
1330 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1331 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1332 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1333 default: printf("no"); break;
1338 if (c->supported_framerates) {
1339 const AVRational *fps = c->supported_framerates;
1341 printf(" Supported framerates:");
1343 printf(" %d/%d", fps->num, fps->den);
1348 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1349 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1350 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1351 GET_SAMPLE_RATE_NAME);
1352 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1353 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1354 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1355 0, GET_CH_LAYOUT_DESC);
1357 if (c->priv_class) {
1358 show_help_children(c->priv_class,
1359 AV_OPT_FLAG_ENCODING_PARAM |
1360 AV_OPT_FLAG_DECODING_PARAM);
1364 static char get_media_type_char(enum AVMediaType type)
1367 case AVMEDIA_TYPE_VIDEO: return 'V';
1368 case AVMEDIA_TYPE_AUDIO: return 'A';
1369 case AVMEDIA_TYPE_DATA: return 'D';
1370 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1371 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1372 default: return '?';
1376 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1379 while ((prev = av_codec_next(prev))) {
1380 if (prev->id == id &&
1381 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1387 static int compare_codec_desc(const void *a, const void *b)
1389 const AVCodecDescriptor * const *da = a;
1390 const AVCodecDescriptor * const *db = b;
1392 return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
1393 strcmp((*da)->name, (*db)->name);
1396 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1398 const AVCodecDescriptor *desc = NULL;
1399 const AVCodecDescriptor **codecs;
1400 unsigned nb_codecs = 0, i = 0;
1402 while ((desc = avcodec_descriptor_next(desc)))
1404 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1405 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1409 while ((desc = avcodec_descriptor_next(desc)))
1411 av_assert0(i == nb_codecs);
1412 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1417 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1419 const AVCodec *codec = NULL;
1421 printf(" (%s: ", encoder ? "encoders" : "decoders");
1423 while ((codec = next_codec_for_id(id, codec, encoder)))
1424 printf("%s ", codec->name);
1429 int show_codecs(void *optctx, const char *opt, const char *arg)
1431 const AVCodecDescriptor **codecs;
1432 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1435 " D..... = Decoding supported\n"
1436 " .E.... = Encoding supported\n"
1437 " ..V... = Video codec\n"
1438 " ..A... = Audio codec\n"
1439 " ..S... = Subtitle codec\n"
1440 " ...I.. = Intra frame-only codec\n"
1441 " ....L. = Lossy compression\n"
1442 " .....S = Lossless compression\n"
1444 for (i = 0; i < nb_codecs; i++) {
1445 const AVCodecDescriptor *desc = codecs[i];
1446 const AVCodec *codec = NULL;
1448 if (strstr(desc->name, "_deprecated"))
1452 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1453 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1455 printf("%c", get_media_type_char(desc->type));
1456 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1457 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1458 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1460 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1462 /* print decoders/encoders when there's more than one or their
1463 * names are different from codec name */
1464 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1465 if (strcmp(codec->name, desc->name)) {
1466 print_codecs_for_id(desc->id, 0);
1471 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1472 if (strcmp(codec->name, desc->name)) {
1473 print_codecs_for_id(desc->id, 1);
1484 static void print_codecs(int encoder)
1486 const AVCodecDescriptor **codecs;
1487 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1492 " S..... = Subtitle\n"
1493 " .F.... = Frame-level multithreading\n"
1494 " ..S... = Slice-level multithreading\n"
1495 " ...X.. = Codec is experimental\n"
1496 " ....B. = Supports draw_horiz_band\n"
1497 " .....D = Supports direct rendering method 1\n"
1499 encoder ? "Encoders" : "Decoders");
1500 for (i = 0; i < nb_codecs; i++) {
1501 const AVCodecDescriptor *desc = codecs[i];
1502 const AVCodec *codec = NULL;
1504 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1505 printf(" %c", get_media_type_char(desc->type));
1506 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1507 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1508 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1509 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1510 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1512 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1513 if (strcmp(codec->name, desc->name))
1514 printf(" (codec %s)", desc->name);
1522 int show_decoders(void *optctx, const char *opt, const char *arg)
1528 int show_encoders(void *optctx, const char *opt, const char *arg)
1534 int show_bsfs(void *optctx, const char *opt, const char *arg)
1536 AVBitStreamFilter *bsf = NULL;
1538 printf("Bitstream filters:\n");
1539 while ((bsf = av_bitstream_filter_next(bsf)))
1540 printf("%s\n", bsf->name);
1545 int show_protocols(void *optctx, const char *opt, const char *arg)
1547 void *opaque = NULL;
1550 printf("Supported file protocols:\n"
1552 while ((name = avio_enum_protocols(&opaque, 0)))
1553 printf(" %s\n", name);
1554 printf("Output:\n");
1555 while ((name = avio_enum_protocols(&opaque, 1)))
1556 printf(" %s\n", name);
1560 int show_filters(void *optctx, const char *opt, const char *arg)
1563 const AVFilter *filter = NULL;
1564 char descr[64], *descr_cur;
1566 const AVFilterPad *pad;
1569 " T.. = Timeline support\n"
1570 " .S. = Slice threading\n"
1571 " ..C = Command support\n"
1572 " A = Audio input/output\n"
1573 " V = Video input/output\n"
1574 " N = Dynamic number and/or type of input/output\n"
1575 " | = Source or sink filter\n");
1576 while ((filter = avfilter_next(filter))) {
1578 for (i = 0; i < 2; i++) {
1580 *(descr_cur++) = '-';
1581 *(descr_cur++) = '>';
1583 pad = i ? filter->outputs : filter->inputs;
1584 for (j = 0; pad && pad[j].name; j++) {
1585 if (descr_cur >= descr + sizeof(descr) - 4)
1587 *(descr_cur++) = get_media_type_char(pad[j].type);
1590 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1591 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1594 printf(" %c%c%c %-16s %-10s %s\n",
1595 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1596 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1597 filter->process_command ? 'C' : '.',
1598 filter->name, descr, filter->description);
1601 printf("No filters available: libavfilter disabled\n");
1606 int show_colors(void *optctx, const char *opt, const char *arg)
1612 printf("%-32s #RRGGBB\n", "name");
1614 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1615 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1620 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1622 const AVPixFmtDescriptor *pix_desc = NULL;
1624 printf("Pixel formats:\n"
1625 "I.... = Supported Input format for conversion\n"
1626 ".O... = Supported Output format for conversion\n"
1627 "..H.. = Hardware accelerated format\n"
1628 "...P. = Paletted format\n"
1629 "....B = Bitstream format\n"
1630 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1634 # define sws_isSupportedInput(x) 0
1635 # define sws_isSupportedOutput(x) 0
1638 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1639 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1640 printf("%c%c%c%c%c %-16s %d %2d\n",
1641 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1642 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1643 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1644 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1645 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1647 pix_desc->nb_components,
1648 av_get_bits_per_pixel(pix_desc));
1653 int show_layouts(void *optctx, const char *opt, const char *arg)
1657 const char *name, *descr;
1659 printf("Individual channels:\n"
1660 "NAME DESCRIPTION\n");
1661 for (i = 0; i < 63; i++) {
1662 name = av_get_channel_name((uint64_t)1 << i);
1665 descr = av_get_channel_description((uint64_t)1 << i);
1666 printf("%-14s %s\n", name, descr);
1668 printf("\nStandard channel layouts:\n"
1669 "NAME DECOMPOSITION\n");
1670 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1672 printf("%-14s ", name);
1673 for (j = 1; j; j <<= 1)
1675 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1682 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1686 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1687 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1691 static void show_help_codec(const char *name, int encoder)
1693 const AVCodecDescriptor *desc;
1694 const AVCodec *codec;
1697 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1701 codec = encoder ? avcodec_find_encoder_by_name(name) :
1702 avcodec_find_decoder_by_name(name);
1706 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1709 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1715 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1716 "but no %s for it are available. FFmpeg might need to be "
1717 "recompiled with additional external libraries.\n",
1718 name, encoder ? "encoders" : "decoders");
1721 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1726 static void show_help_demuxer(const char *name)
1728 const AVInputFormat *fmt = av_find_input_format(name);
1731 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1735 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1737 if (fmt->extensions)
1738 printf(" Common extensions: %s.\n", fmt->extensions);
1740 if (fmt->priv_class)
1741 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1744 static void show_help_muxer(const char *name)
1746 const AVCodecDescriptor *desc;
1747 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1750 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1754 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1756 if (fmt->extensions)
1757 printf(" Common extensions: %s.\n", fmt->extensions);
1759 printf(" Mime type: %s.\n", fmt->mime_type);
1760 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1761 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1762 printf(" Default video codec: %s.\n", desc->name);
1764 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1765 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1766 printf(" Default audio codec: %s.\n", desc->name);
1768 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1769 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1770 printf(" Default subtitle codec: %s.\n", desc->name);
1773 if (fmt->priv_class)
1774 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1778 static void show_help_filter(const char *name)
1781 const AVFilter *f = avfilter_get_by_name(name);
1785 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1788 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1792 printf("Filter %s\n", f->name);
1794 printf(" %s\n", f->description);
1796 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1797 printf(" slice threading supported\n");
1799 printf(" Inputs:\n");
1800 count = avfilter_pad_count(f->inputs);
1801 for (i = 0; i < count; i++) {
1802 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1803 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1805 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1806 printf(" dynamic (depending on the options)\n");
1808 printf(" none (source filter)\n");
1810 printf(" Outputs:\n");
1811 count = avfilter_pad_count(f->outputs);
1812 for (i = 0; i < count; i++) {
1813 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1814 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1816 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1817 printf(" dynamic (depending on the options)\n");
1819 printf(" none (sink filter)\n");
1822 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1823 AV_OPT_FLAG_AUDIO_PARAM);
1824 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1825 printf("This filter has support for timeline through the 'enable' option.\n");
1827 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1828 "can not to satisfy request\n");
1833 int show_help(void *optctx, const char *opt, const char *arg)
1836 av_log_set_callback(log_callback_help);
1838 topic = av_strdup(arg ? arg : "");
1840 return AVERROR(ENOMEM);
1841 par = strchr(topic, '=');
1846 show_help_default(topic, par);
1847 } else if (!strcmp(topic, "decoder")) {
1848 show_help_codec(par, 0);
1849 } else if (!strcmp(topic, "encoder")) {
1850 show_help_codec(par, 1);
1851 } else if (!strcmp(topic, "demuxer")) {
1852 show_help_demuxer(par);
1853 } else if (!strcmp(topic, "muxer")) {
1854 show_help_muxer(par);
1856 } else if (!strcmp(topic, "filter")) {
1857 show_help_filter(par);
1860 show_help_default(topic, par);
1867 int read_yesno(void)
1870 int yesno = (av_toupper(c) == 'Y');
1872 while (c != '\n' && c != EOF)
1878 FILE *get_preset_file(char *filename, size_t filename_size,
1879 const char *preset_name, int is_path,
1880 const char *codec_name)
1884 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1889 av_strlcpy(filename, preset_name, filename_size);
1890 f = fopen(filename, "r");
1893 char datadir[MAX_PATH], *ls;
1896 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1898 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1899 if (*ls == '\\') *ls = '/';
1901 if (ls = strrchr(datadir, '/'))
1904 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1909 for (i = 0; i < 3 && !f; i++) {
1912 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1913 i != 1 ? "" : "/.ffmpeg", preset_name);
1914 f = fopen(filename, "r");
1915 if (!f && codec_name) {
1916 snprintf(filename, filename_size,
1917 "%s%s/%s-%s.ffpreset",
1918 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1920 f = fopen(filename, "r");
1928 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1930 int ret = avformat_match_stream_specifier(s, st, spec);
1932 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1936 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1937 AVFormatContext *s, AVStream *st, AVCodec *codec)
1939 AVDictionary *ret = NULL;
1940 AVDictionaryEntry *t = NULL;
1941 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1942 : AV_OPT_FLAG_DECODING_PARAM;
1944 const AVClass *cc = avcodec_get_class();
1947 codec = s->oformat ? avcodec_find_encoder(codec_id)
1948 : avcodec_find_decoder(codec_id);
1950 switch (st->codec->codec_type) {
1951 case AVMEDIA_TYPE_VIDEO:
1953 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1955 case AVMEDIA_TYPE_AUDIO:
1957 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1959 case AVMEDIA_TYPE_SUBTITLE:
1961 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1965 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1966 char *p = strchr(t->key, ':');
1968 /* check stream specification in opt name */
1970 switch (check_stream_specifier(s, st, p + 1)) {
1971 case 1: *p = 0; break;
1973 default: exit_program(1);
1976 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1978 (codec->priv_class &&
1979 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1980 AV_OPT_SEARCH_FAKE_OBJ)))
1981 av_dict_set(&ret, t->key, t->value, 0);
1982 else if (t->key[0] == prefix &&
1983 av_opt_find(&cc, t->key + 1, NULL, flags,
1984 AV_OPT_SEARCH_FAKE_OBJ))
1985 av_dict_set(&ret, t->key + 1, t->value, 0);
1993 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1994 AVDictionary *codec_opts)
1997 AVDictionary **opts;
2001 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2003 av_log(NULL, AV_LOG_ERROR,
2004 "Could not alloc memory for stream options.\n");
2007 for (i = 0; i < s->nb_streams; i++)
2008 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
2009 s, s->streams[i], NULL);
2013 void *grow_array(void *array, int elem_size, int *size, int new_size)
2015 if (new_size >= INT_MAX / elem_size) {
2016 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2019 if (*size < new_size) {
2020 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2022 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2025 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2032 double get_rotation(AVStream *st)
2034 AVDictionaryEntry *rotate_tag = av_dict_get(st->metadata, "rotate", NULL, 0);
2035 uint8_t* displaymatrix = av_stream_get_side_data(st,
2036 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2039 if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
2041 theta = av_strtod(rotate_tag->value, &tail);
2045 if (displaymatrix && !theta)
2046 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2048 theta -= 360*floor(theta/360 + 0.9/360);
2050 if (fabs(theta - 90*round(theta/90)) > 2)
2051 av_log_ask_for_sample(NULL, "Odd rotation angle\n");
2057 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2060 AVDeviceInfoList *device_list = 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 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2073 printf("Cannot list sources.\n");
2077 for (i = 0; i < device_list->nb_devices; i++) {
2078 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2079 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2083 avdevice_free_list_devices(&device_list);
2087 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2090 AVDeviceInfoList *device_list = NULL;
2092 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2093 return AVERROR(EINVAL);
2095 printf("Audo-detected sinks for %s:\n", fmt->name);
2096 if (!fmt->get_device_list) {
2097 ret = AVERROR(ENOSYS);
2098 printf("Cannot list sinks. Not implemented.\n");
2102 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2103 printf("Cannot list sinks.\n");
2107 for (i = 0; i < device_list->nb_devices; i++) {
2108 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2109 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2113 avdevice_free_list_devices(&device_list);
2117 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2121 char *opts_str = NULL;
2122 av_assert0(dev && opts);
2123 *dev = av_strdup(arg);
2125 return AVERROR(ENOMEM);
2126 if ((opts_str = strchr(*dev, ','))) {
2127 *(opts_str++) = '\0';
2128 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2134 printf("\nDevice name is not provided.\n"
2135 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2139 int show_sources(void *optctx, const char *opt, const char *arg)
2141 AVInputFormat *fmt = NULL;
2143 AVDictionary *opts = NULL;
2145 int error_level = av_log_get_level();
2147 av_log_set_level(AV_LOG_ERROR);
2149 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2153 fmt = av_input_audio_device_next(fmt);
2155 if (!strcmp(fmt->name, "lavfi"))
2156 continue; //it's pointless to probe lavfi
2157 if (dev && !av_match_name(dev, fmt->name))
2159 print_device_sources(fmt, opts);
2163 fmt = av_input_video_device_next(fmt);
2165 if (dev && !av_match_name(dev, fmt->name))
2167 print_device_sources(fmt, opts);
2171 av_dict_free(&opts);
2173 av_log_set_level(error_level);
2177 int show_sinks(void *optctx, const char *opt, const char *arg)
2179 AVOutputFormat *fmt = NULL;
2181 AVDictionary *opts = NULL;
2183 int error_level = av_log_get_level();
2185 av_log_set_level(AV_LOG_ERROR);
2187 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2191 fmt = av_output_audio_device_next(fmt);
2193 if (dev && !av_match_name(dev, fmt->name))
2195 print_device_sinks(fmt, opts);
2199 fmt = av_output_video_device_next(fmt);
2201 if (dev && !av_match_name(dev, fmt->name))
2203 print_device_sinks(fmt, opts);
2207 av_dict_free(&opts);
2209 av_log_set_level(error_level);