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/attributes.h"
42 #include "libavutil/avassert.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/bprint.h"
45 #include "libavutil/display.h"
46 #include "libavutil/mathematics.h"
47 #include "libavutil/imgutils.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/pixdesc.h"
51 #include "libavutil/eval.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/opt.h"
54 #include "libavutil/cpu.h"
55 #include "libavutil/ffversion.h"
56 #include "libavutil/version.h"
59 #include "libavformat/network.h"
61 #if HAVE_SYS_RESOURCE_H
63 #include <sys/resource.h>
69 static int init_report(const char *env);
71 AVDictionary *sws_dict;
72 AVDictionary *swr_opts;
73 AVDictionary *format_opts, *codec_opts, *resample_opts;
75 static FILE *report_file;
76 static int report_file_level = AV_LOG_DEBUG;
79 enum show_muxdemuxers {
87 av_dict_set(&sws_dict, "flags", "bicubic", 0);
90 void uninit_opts(void)
92 av_dict_free(&swr_opts);
93 av_dict_free(&sws_dict);
94 av_dict_free(&format_opts);
95 av_dict_free(&codec_opts);
96 av_dict_free(&resample_opts);
99 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
101 vfprintf(stdout, fmt, vl);
104 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
108 static int print_prefix = 1;
111 av_log_default_callback(ptr, level, fmt, vl);
112 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
114 if (report_file_level >= level) {
115 fputs(line, report_file);
120 void init_dynload(void)
123 /* Calling SetDllDirectory with the empty string (but not NULL) removes the
124 * current working directory from the DLL search path as a security pre-caution. */
129 static void (*program_exit)(int ret);
131 void register_exit(void (*cb)(int ret))
136 void exit_program(int ret)
144 double parse_number_or_die(const char *context, const char *numstr, int type,
145 double min, double max)
149 double d = av_strtod(numstr, &tail);
151 error = "Expected number for %s but found: %s\n";
152 else if (d < min || d > max)
153 error = "The value for %s was %s which is not within %f - %f\n";
154 else if (type == OPT_INT64 && (int64_t)d != d)
155 error = "Expected int64 for %s but found %s\n";
156 else if (type == OPT_INT && (int)d != d)
157 error = "Expected int for %s but found %s\n";
160 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
165 int64_t parse_time_or_die(const char *context, const char *timestr,
169 if (av_parse_time(&us, timestr, is_duration) < 0) {
170 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
171 is_duration ? "duration" : "date", context, timestr);
177 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
178 int rej_flags, int alt_flags)
184 for (po = options; po->name; po++) {
187 if (((po->flags & req_flags) != req_flags) ||
188 (alt_flags && !(po->flags & alt_flags)) ||
189 (po->flags & rej_flags))
196 av_strlcpy(buf, po->name, sizeof(buf));
198 av_strlcat(buf, " ", sizeof(buf));
199 av_strlcat(buf, po->argname, sizeof(buf));
201 printf("-%-17s %s\n", buf, po->help);
206 void show_help_children(const AVClass *class, int flags)
208 const AVClass *child = NULL;
210 av_opt_show2(&class, NULL, flags, 0);
214 while (child = av_opt_child_class_next(class, child))
215 show_help_children(child, flags);
218 static const OptionDef *find_option(const OptionDef *po, const char *name)
220 const char *p = strchr(name, ':');
221 int len = p ? p - name : strlen(name);
224 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
231 /* _WIN32 means using the windows libc - cygwin doesn't define that
232 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
233 * it doesn't provide the actual command line via GetCommandLineW(). */
234 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
235 #include <shellapi.h>
236 /* Will be leaked on exit */
237 static char** win32_argv_utf8 = NULL;
238 static int win32_argc = 0;
241 * Prepare command line arguments for executable.
242 * For Windows - perform wide-char to UTF-8 conversion.
243 * Input arguments should be main() function arguments.
244 * @param argc_ptr Arguments number (including executable)
245 * @param argv_ptr Arguments list.
247 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
251 int i, buffsize = 0, offset = 0;
253 if (win32_argv_utf8) {
254 *argc_ptr = win32_argc;
255 *argv_ptr = win32_argv_utf8;
260 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
261 if (win32_argc <= 0 || !argv_w)
264 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
265 for (i = 0; i < win32_argc; i++)
266 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
267 NULL, 0, NULL, NULL);
269 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
270 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
271 if (!win32_argv_utf8) {
276 for (i = 0; i < win32_argc; i++) {
277 win32_argv_utf8[i] = &argstr_flat[offset];
278 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
279 &argstr_flat[offset],
280 buffsize - offset, NULL, NULL);
282 win32_argv_utf8[i] = NULL;
285 *argc_ptr = win32_argc;
286 *argv_ptr = win32_argv_utf8;
289 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
293 #endif /* HAVE_COMMANDLINETOARGVW */
295 static int write_option(void *optctx, const OptionDef *po, const char *opt,
298 /* new-style options contain an offset into optctx, old-style address of
300 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
301 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
304 if (po->flags & OPT_SPEC) {
305 SpecifierOpt **so = dst;
306 char *p = strchr(opt, ':');
309 dstcount = (int *)(so + 1);
310 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
311 str = av_strdup(p ? p + 1 : "");
313 return AVERROR(ENOMEM);
314 (*so)[*dstcount - 1].specifier = str;
315 dst = &(*so)[*dstcount - 1].u;
318 if (po->flags & OPT_STRING) {
320 str = av_strdup(arg);
323 return AVERROR(ENOMEM);
325 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
326 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
327 } else if (po->flags & OPT_INT64) {
328 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
329 } else if (po->flags & OPT_TIME) {
330 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
331 } else if (po->flags & OPT_FLOAT) {
332 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
333 } else if (po->flags & OPT_DOUBLE) {
334 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
335 } else if (po->u.func_arg) {
336 int ret = po->u.func_arg(optctx, opt, arg);
338 av_log(NULL, AV_LOG_ERROR,
339 "Failed to set value '%s' for option '%s': %s\n",
340 arg, opt, av_err2str(ret));
344 if (po->flags & OPT_EXIT)
350 int parse_option(void *optctx, const char *opt, const char *arg,
351 const OptionDef *options)
356 po = find_option(options, opt);
357 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
358 /* handle 'no' bool option */
359 po = find_option(options, opt + 2);
360 if ((po->name && (po->flags & OPT_BOOL)))
362 } else if (po->flags & OPT_BOOL)
366 po = find_option(options, "default");
368 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
369 return AVERROR(EINVAL);
371 if (po->flags & HAS_ARG && !arg) {
372 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
373 return AVERROR(EINVAL);
376 ret = write_option(optctx, po, opt, arg);
380 return !!(po->flags & HAS_ARG);
383 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
384 void (*parse_arg_function)(void *, const char*))
387 int optindex, handleoptions = 1, ret;
389 /* perform system-dependent conversions for arguments list */
390 prepare_app_arguments(&argc, &argv);
394 while (optindex < argc) {
395 opt = argv[optindex++];
397 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
398 if (opt[1] == '-' && opt[2] == '\0') {
404 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
408 if (parse_arg_function)
409 parse_arg_function(optctx, opt);
414 int parse_optgroup(void *optctx, OptionGroup *g)
418 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
419 g->group_def->name, g->arg);
421 for (i = 0; i < g->nb_opts; i++) {
422 Option *o = &g->opts[i];
424 if (g->group_def->flags &&
425 !(g->group_def->flags & o->opt->flags)) {
426 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
427 "%s %s -- you are trying to apply an input option to an "
428 "output file or vice versa. Move this option before the "
429 "file it belongs to.\n", o->key, o->opt->help,
430 g->group_def->name, g->arg);
431 return AVERROR(EINVAL);
434 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
435 o->key, o->opt->help, o->val);
437 ret = write_option(optctx, o->opt, o->key, o->val);
442 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
447 int locate_option(int argc, char **argv, const OptionDef *options,
453 for (i = 1; i < argc; i++) {
454 const char *cur_opt = argv[i];
456 if (*cur_opt++ != '-')
459 po = find_option(options, cur_opt);
460 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
461 po = find_option(options, cur_opt + 2);
463 if ((!po->name && !strcmp(cur_opt, optname)) ||
464 (po->name && !strcmp(optname, po->name)))
467 if (!po->name || po->flags & HAS_ARG)
473 static void dump_argument(const char *a)
475 const unsigned char *p;
478 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
479 *p == '_' || (*p >= 'a' && *p <= 'z')))
482 fputs(a, report_file);
485 fputc('"', report_file);
486 for (p = a; *p; p++) {
487 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
488 fprintf(report_file, "\\%c", *p);
489 else if (*p < ' ' || *p > '~')
490 fprintf(report_file, "\\x%02x", *p);
492 fputc(*p, report_file);
494 fputc('"', report_file);
497 static void check_options(const OptionDef *po)
500 if (po->flags & OPT_PERFILE)
501 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
506 void parse_loglevel(int argc, char **argv, const OptionDef *options)
508 int idx = locate_option(argc, argv, options, "loglevel");
511 check_options(options);
514 idx = locate_option(argc, argv, options, "v");
515 if (idx && argv[idx + 1])
516 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
517 idx = locate_option(argc, argv, options, "report");
518 if ((env = getenv("FFREPORT")) || idx) {
522 fprintf(report_file, "Command line:\n");
523 for (i = 0; i < argc; i++) {
524 dump_argument(argv[i]);
525 fputc(i < argc - 1 ? ' ' : '\n', report_file);
530 idx = locate_option(argc, argv, options, "hide_banner");
535 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
536 int opt_flags, int search_flags)
538 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
544 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
545 int opt_default(void *optctx, const char *opt, const char *arg)
549 char opt_stripped[128];
551 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
552 #if CONFIG_AVRESAMPLE
553 const AVClass *rc = avresample_get_class();
556 const AVClass *sc = sws_get_class();
558 #if CONFIG_SWRESAMPLE
559 const AVClass *swr_class = swr_get_class();
562 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
563 av_log_set_level(AV_LOG_DEBUG);
565 if (!(p = strchr(opt, ':')))
566 p = opt + strlen(opt);
567 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
569 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
570 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
571 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
572 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
573 av_dict_set(&codec_opts, opt, arg, FLAGS);
576 if ((o = opt_find(&fc, opt, NULL, 0,
577 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
578 av_dict_set(&format_opts, opt, arg, FLAGS);
580 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
584 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
585 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
586 struct SwsContext *sws = sws_alloc_context();
587 int ret = av_opt_set(sws, opt, arg, 0);
588 sws_freeContext(sws);
589 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
590 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
591 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
592 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
593 return AVERROR(EINVAL);
596 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
600 av_dict_set(&sws_dict, opt, arg, FLAGS);
605 if (!consumed && !strcmp(opt, "sws_flags")) {
606 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
610 #if CONFIG_SWRESAMPLE
611 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
612 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
613 struct SwrContext *swr = swr_alloc();
614 int ret = av_opt_set(swr, opt, arg, 0);
617 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
620 av_dict_set(&swr_opts, opt, arg, FLAGS);
624 #if CONFIG_AVRESAMPLE
625 if ((o=opt_find(&rc, opt, NULL, 0,
626 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
627 av_dict_set(&resample_opts, opt, arg, FLAGS);
634 return AVERROR_OPTION_NOT_FOUND;
638 * Check whether given option is a group separator.
640 * @return index of the group definition that matched or -1 if none
642 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
647 for (i = 0; i < nb_groups; i++) {
648 const OptionGroupDef *p = &groups[i];
649 if (p->sep && !strcmp(p->sep, opt))
657 * Finish parsing an option group.
659 * @param group_idx which group definition should this group belong to
660 * @param arg argument of the group delimiting option
662 static void finish_group(OptionParseContext *octx, int group_idx,
665 OptionGroupList *l = &octx->groups[group_idx];
668 GROW_ARRAY(l->groups, l->nb_groups);
669 g = &l->groups[l->nb_groups - 1];
671 *g = octx->cur_group;
673 g->group_def = l->group_def;
674 g->sws_dict = sws_dict;
675 g->swr_opts = swr_opts;
676 g->codec_opts = codec_opts;
677 g->format_opts = format_opts;
678 g->resample_opts = resample_opts;
682 resample_opts = NULL;
687 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
691 * Add an option instance to currently parsed group.
693 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
694 const char *key, const char *val)
696 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
697 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
699 GROW_ARRAY(g->opts, g->nb_opts);
700 g->opts[g->nb_opts - 1].opt = opt;
701 g->opts[g->nb_opts - 1].key = key;
702 g->opts[g->nb_opts - 1].val = val;
705 static void init_parse_context(OptionParseContext *octx,
706 const OptionGroupDef *groups, int nb_groups)
708 static const OptionGroupDef global_group = { "global" };
711 memset(octx, 0, sizeof(*octx));
713 octx->nb_groups = nb_groups;
714 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
718 for (i = 0; i < octx->nb_groups; i++)
719 octx->groups[i].group_def = &groups[i];
721 octx->global_opts.group_def = &global_group;
722 octx->global_opts.arg = "";
727 void uninit_parse_context(OptionParseContext *octx)
731 for (i = 0; i < octx->nb_groups; i++) {
732 OptionGroupList *l = &octx->groups[i];
734 for (j = 0; j < l->nb_groups; j++) {
735 av_freep(&l->groups[j].opts);
736 av_dict_free(&l->groups[j].codec_opts);
737 av_dict_free(&l->groups[j].format_opts);
738 av_dict_free(&l->groups[j].resample_opts);
740 av_dict_free(&l->groups[j].sws_dict);
741 av_dict_free(&l->groups[j].swr_opts);
743 av_freep(&l->groups);
745 av_freep(&octx->groups);
747 av_freep(&octx->cur_group.opts);
748 av_freep(&octx->global_opts.opts);
753 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
754 const OptionDef *options,
755 const OptionGroupDef *groups, int nb_groups)
760 /* perform system-dependent conversions for arguments list */
761 prepare_app_arguments(&argc, &argv);
763 init_parse_context(octx, groups, nb_groups);
764 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
766 while (optindex < argc) {
767 const char *opt = argv[optindex++], *arg;
771 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
773 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
777 /* unnamed group separators, e.g. output filename */
778 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
779 finish_group(octx, 0, opt);
780 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
785 #define GET_ARG(arg) \
787 arg = argv[optindex++]; \
789 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
790 return AVERROR(EINVAL); \
794 /* named group separators, e.g. -i */
795 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
797 finish_group(octx, ret, arg);
798 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
799 groups[ret].name, arg);
804 po = find_option(options, opt);
806 if (po->flags & OPT_EXIT) {
807 /* optional argument, e.g. -h */
808 arg = argv[optindex++];
809 } else if (po->flags & HAS_ARG) {
815 add_opt(octx, po, opt, arg);
816 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
817 "argument '%s'.\n", po->name, po->help, arg);
822 if (argv[optindex]) {
823 ret = opt_default(NULL, opt, argv[optindex]);
825 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
826 "argument '%s'.\n", opt, argv[optindex]);
829 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
830 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
831 "with argument '%s'.\n", opt, argv[optindex]);
836 /* boolean -nofoo options */
837 if (opt[0] == 'n' && opt[1] == 'o' &&
838 (po = find_option(options, opt + 2)) &&
839 po->name && po->flags & OPT_BOOL) {
840 add_opt(octx, po, opt, "0");
841 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
842 "argument 0.\n", po->name, po->help);
846 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
847 return AVERROR_OPTION_NOT_FOUND;
850 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
851 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
854 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
859 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
862 unsigned flags = av_get_cpu_flags();
864 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
867 av_force_cpu_flags(flags);
871 int opt_loglevel(void *optctx, const char *opt, const char *arg)
873 const struct { const char *name; int level; } log_levels[] = {
874 { "quiet" , AV_LOG_QUIET },
875 { "panic" , AV_LOG_PANIC },
876 { "fatal" , AV_LOG_FATAL },
877 { "error" , AV_LOG_ERROR },
878 { "warning", AV_LOG_WARNING },
879 { "info" , AV_LOG_INFO },
880 { "verbose", AV_LOG_VERBOSE },
881 { "debug" , AV_LOG_DEBUG },
882 { "trace" , AV_LOG_TRACE },
886 int flags = av_log_get_flags();
887 int level = av_log_get_level();
893 if (*token == '+' || *token == '-') {
899 flags = 0; /* missing relative prefix, build absolute value */
901 if (!strncmp(token, "repeat", 6)) {
903 flags |= AV_LOG_SKIP_REPEATED;
905 flags &= ~AV_LOG_SKIP_REPEATED;
908 } else if (!strncmp(token, "level", 5)) {
910 flags &= ~AV_LOG_PRINT_LEVEL;
912 flags |= AV_LOG_PRINT_LEVEL;
922 } else if (*arg == '+') {
925 flags = av_log_get_flags(); /* level value without prefix, reset flags */
928 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
929 if (!strcmp(log_levels[i].name, arg)) {
930 level = log_levels[i].level;
935 level = strtol(arg, &tail, 10);
937 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
938 "Possible levels are numbers or:\n", arg);
939 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
940 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
945 av_log_set_flags(flags);
946 av_log_set_level(level);
950 static void expand_filename_template(AVBPrint *bp, const char *template,
955 while ((c = *(template++))) {
957 if (!(c = *(template++)))
961 av_bprintf(bp, "%s", program_name);
964 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
965 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
966 tm->tm_hour, tm->tm_min, tm->tm_sec);
969 av_bprint_chars(bp, c, 1);
973 av_bprint_chars(bp, c, 1);
978 static int init_report(const char *env)
980 char *filename_template = NULL;
987 if (report_file) /* already opened */
990 tm = localtime(&now);
992 while (env && *env) {
993 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
995 av_log(NULL, AV_LOG_ERROR,
996 "Failed to parse FFREPORT environment variable: %s\n",
1003 if (!strcmp(key, "file")) {
1004 av_free(filename_template);
1005 filename_template = val;
1007 } else if (!strcmp(key, "level")) {
1009 report_file_level = strtol(val, &tail, 10);
1011 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1015 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1021 av_bprint_init(&filename, 0, 1);
1022 expand_filename_template(&filename,
1023 av_x_if_null(filename_template, "%p-%t.log"), tm);
1024 av_free(filename_template);
1025 if (!av_bprint_is_complete(&filename)) {
1026 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1027 return AVERROR(ENOMEM);
1030 report_file = fopen(filename.str, "w");
1032 int ret = AVERROR(errno);
1033 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1034 filename.str, strerror(errno));
1037 av_log_set_callback(log_callback_report);
1038 av_log(NULL, AV_LOG_INFO,
1039 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1040 "Report written to \"%s\"\n",
1042 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1043 tm->tm_hour, tm->tm_min, tm->tm_sec,
1045 av_bprint_finalize(&filename, NULL);
1049 int opt_report(const char *opt)
1051 return init_report(NULL);
1054 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1059 max = strtol(arg, &tail, 10);
1061 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1068 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1071 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1072 struct rlimit rl = { lim, lim + 1 };
1073 if (setrlimit(RLIMIT_CPU, &rl))
1074 perror("setrlimit");
1076 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1081 void print_error(const char *filename, int err)
1084 const char *errbuf_ptr = errbuf;
1086 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1087 errbuf_ptr = strerror(AVUNERROR(err));
1088 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1091 static int warned_cfg = 0;
1094 #define SHOW_VERSION 2
1095 #define SHOW_CONFIG 4
1096 #define SHOW_COPYRIGHT 8
1098 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1099 if (CONFIG_##LIBNAME) { \
1100 const char *indent = flags & INDENT? " " : ""; \
1101 if (flags & SHOW_VERSION) { \
1102 unsigned int version = libname##_version(); \
1103 av_log(NULL, level, \
1104 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1106 LIB##LIBNAME##_VERSION_MAJOR, \
1107 LIB##LIBNAME##_VERSION_MINOR, \
1108 LIB##LIBNAME##_VERSION_MICRO, \
1109 AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1110 AV_VERSION_MICRO(version)); \
1112 if (flags & SHOW_CONFIG) { \
1113 const char *cfg = libname##_configuration(); \
1114 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1115 if (!warned_cfg) { \
1116 av_log(NULL, level, \
1117 "%sWARNING: library configuration mismatch\n", \
1121 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1122 indent, #libname, cfg); \
1127 static void print_all_libs_info(int flags, int level)
1129 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1130 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1131 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1132 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1133 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1134 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1135 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1136 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1137 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1140 static void print_program_info(int flags, int level)
1142 const char *indent = flags & INDENT? " " : "";
1144 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1145 if (flags & SHOW_COPYRIGHT)
1146 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1147 program_birth_year, CONFIG_THIS_YEAR);
1148 av_log(NULL, level, "\n");
1149 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1151 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1154 static void print_buildconf(int flags, int level)
1156 const char *indent = flags & INDENT ? " " : "";
1157 char str[] = { FFMPEG_CONFIGURATION };
1158 char *conflist, *remove_tilde, *splitconf;
1160 // Change all the ' --' strings to '~--' so that
1161 // they can be identified as tokens.
1162 while ((conflist = strstr(str, " --")) != NULL) {
1163 strncpy(conflist, "~--", 3);
1166 // Compensate for the weirdness this would cause
1167 // when passing 'pkg-config --static'.
1168 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1169 strncpy(remove_tilde, "pkg-config ", 11);
1172 splitconf = strtok(str, "~");
1173 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1174 while (splitconf != NULL) {
1175 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1176 splitconf = strtok(NULL, "~");
1180 void show_banner(int argc, char **argv, const OptionDef *options)
1182 int idx = locate_option(argc, argv, options, "version");
1183 if (hide_banner || idx)
1186 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1187 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1188 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1191 int show_version(void *optctx, const char *opt, const char *arg)
1193 av_log_set_callback(log_callback_help);
1194 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1195 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1200 int show_buildconf(void *optctx, const char *opt, const char *arg)
1202 av_log_set_callback(log_callback_help);
1203 print_buildconf (INDENT|0, AV_LOG_INFO);
1208 int show_license(void *optctx, const char *opt, const char *arg)
1212 "This version of %s has nonfree parts compiled in.\n"
1213 "Therefore it is not legally redistributable.\n",
1217 "%s is free software; you can redistribute it and/or modify\n"
1218 "it under the terms of the GNU General Public License as published by\n"
1219 "the Free Software Foundation; either version 3 of the License, or\n"
1220 "(at your option) any later version.\n"
1222 "%s is distributed in the hope that it will be useful,\n"
1223 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1224 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1225 "GNU General Public License for more details.\n"
1227 "You should have received a copy of the GNU General Public License\n"
1228 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1229 program_name, program_name, program_name );
1232 "%s is free software; you can redistribute it and/or modify\n"
1233 "it under the terms of the GNU General Public License as published by\n"
1234 "the Free Software Foundation; either version 2 of the License, or\n"
1235 "(at your option) any later version.\n"
1237 "%s is distributed in the hope that it will be useful,\n"
1238 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1239 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1240 "GNU General Public License for more details.\n"
1242 "You should have received a copy of the GNU General Public License\n"
1243 "along with %s; if not, write to the Free Software\n"
1244 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1245 program_name, program_name, program_name );
1248 "%s is free software; you can redistribute it and/or modify\n"
1249 "it under the terms of the GNU Lesser General Public License as published by\n"
1250 "the Free Software Foundation; either version 3 of the License, or\n"
1251 "(at your option) any later version.\n"
1253 "%s is distributed in the hope that it will be useful,\n"
1254 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1255 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1256 "GNU Lesser General Public License for more details.\n"
1258 "You should have received a copy of the GNU Lesser General Public License\n"
1259 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1260 program_name, program_name, program_name );
1263 "%s is free software; you can redistribute it and/or\n"
1264 "modify it under the terms of the GNU Lesser General Public\n"
1265 "License as published by the Free Software Foundation; either\n"
1266 "version 2.1 of the License, or (at your option) any later version.\n"
1268 "%s is distributed in the hope that it will be useful,\n"
1269 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1270 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1271 "Lesser General Public License for more details.\n"
1273 "You should have received a copy of the GNU Lesser General Public\n"
1274 "License along with %s; if not, write to the Free Software\n"
1275 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1276 program_name, program_name, program_name );
1282 static int is_device(const AVClass *avclass)
1286 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1289 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
1291 void *ifmt_opaque = NULL;
1292 const AVInputFormat *ifmt = NULL;
1293 void *ofmt_opaque = NULL;
1294 const AVOutputFormat *ofmt = NULL;
1295 const char *last_name;
1299 " D. = Demuxing supported\n"
1300 " .E = Muxing supported\n"
1301 " --\n", device_only ? "Devices:" : "File formats:");
1306 const char *name = NULL;
1307 const char *long_name = NULL;
1309 if (muxdemuxers !=SHOW_DEMUXERS) {
1311 while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
1312 is_dev = is_device(ofmt->priv_class);
1313 if (!is_dev && device_only)
1315 if ((!name || strcmp(ofmt->name, name) < 0) &&
1316 strcmp(ofmt->name, last_name) > 0) {
1318 long_name = ofmt->long_name;
1323 if (muxdemuxers != SHOW_MUXERS) {
1325 while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
1326 is_dev = is_device(ifmt->priv_class);
1327 if (!is_dev && device_only)
1329 if ((!name || strcmp(ifmt->name, name) < 0) &&
1330 strcmp(ifmt->name, last_name) > 0) {
1332 long_name = ifmt->long_name;
1335 if (name && strcmp(ifmt->name, name) == 0)
1343 printf(" %s%s %-15s %s\n",
1347 long_name ? long_name:" ");
1352 int show_formats(void *optctx, const char *opt, const char *arg)
1354 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
1357 int show_muxers(void *optctx, const char *opt, const char *arg)
1359 return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
1362 int show_demuxers(void *optctx, const char *opt, const char *arg)
1364 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
1367 int show_devices(void *optctx, const char *opt, const char *arg)
1369 return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
1372 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1373 if (codec->field) { \
1374 const type *p = codec->field; \
1376 printf(" Supported " list_name ":"); \
1377 while (*p != term) { \
1379 printf(" %s", name); \
1385 static void print_codec(const AVCodec *c)
1387 int encoder = av_codec_is_encoder(c);
1389 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1390 c->long_name ? c->long_name : "");
1392 printf(" General capabilities: ");
1393 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1394 printf("horizband ");
1395 if (c->capabilities & AV_CODEC_CAP_DR1)
1397 if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1399 if (c->capabilities & AV_CODEC_CAP_DELAY)
1401 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1403 if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1404 printf("subframes ");
1405 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1407 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1409 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1410 printf("paramchange ");
1411 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1412 printf("variable ");
1413 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1414 AV_CODEC_CAP_SLICE_THREADS |
1415 AV_CODEC_CAP_AUTO_THREADS))
1417 if (!c->capabilities)
1421 if (c->type == AVMEDIA_TYPE_VIDEO ||
1422 c->type == AVMEDIA_TYPE_AUDIO) {
1423 printf(" Threading capabilities: ");
1424 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1425 AV_CODEC_CAP_SLICE_THREADS |
1426 AV_CODEC_CAP_AUTO_THREADS)) {
1427 case AV_CODEC_CAP_FRAME_THREADS |
1428 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1429 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1430 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1431 case AV_CODEC_CAP_AUTO_THREADS : printf("auto"); break;
1432 default: printf("none"); break;
1437 if (c->supported_framerates) {
1438 const AVRational *fps = c->supported_framerates;
1440 printf(" Supported framerates:");
1442 printf(" %d/%d", fps->num, fps->den);
1447 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1448 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1449 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1450 GET_SAMPLE_RATE_NAME);
1451 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1452 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1453 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1454 0, GET_CH_LAYOUT_DESC);
1456 if (c->priv_class) {
1457 show_help_children(c->priv_class,
1458 AV_OPT_FLAG_ENCODING_PARAM |
1459 AV_OPT_FLAG_DECODING_PARAM);
1463 static char get_media_type_char(enum AVMediaType type)
1466 case AVMEDIA_TYPE_VIDEO: return 'V';
1467 case AVMEDIA_TYPE_AUDIO: return 'A';
1468 case AVMEDIA_TYPE_DATA: return 'D';
1469 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1470 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1471 default: return '?';
1475 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1478 while ((prev = av_codec_next(prev))) {
1479 if (prev->id == id &&
1480 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1486 static int compare_codec_desc(const void *a, const void *b)
1488 const AVCodecDescriptor * const *da = a;
1489 const AVCodecDescriptor * const *db = b;
1491 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1492 strcmp((*da)->name, (*db)->name);
1495 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1497 const AVCodecDescriptor *desc = NULL;
1498 const AVCodecDescriptor **codecs;
1499 unsigned nb_codecs = 0, i = 0;
1501 while ((desc = avcodec_descriptor_next(desc)))
1503 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1504 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1508 while ((desc = avcodec_descriptor_next(desc)))
1510 av_assert0(i == nb_codecs);
1511 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1516 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1518 const AVCodec *codec = NULL;
1520 printf(" (%s: ", encoder ? "encoders" : "decoders");
1522 while ((codec = next_codec_for_id(id, codec, encoder)))
1523 printf("%s ", codec->name);
1528 int show_codecs(void *optctx, const char *opt, const char *arg)
1530 const AVCodecDescriptor **codecs;
1531 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1534 " D..... = Decoding supported\n"
1535 " .E.... = Encoding supported\n"
1536 " ..V... = Video codec\n"
1537 " ..A... = Audio codec\n"
1538 " ..S... = Subtitle codec\n"
1539 " ...I.. = Intra frame-only codec\n"
1540 " ....L. = Lossy compression\n"
1541 " .....S = Lossless compression\n"
1543 for (i = 0; i < nb_codecs; i++) {
1544 const AVCodecDescriptor *desc = codecs[i];
1545 const AVCodec *codec = NULL;
1547 if (strstr(desc->name, "_deprecated"))
1551 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1552 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1554 printf("%c", get_media_type_char(desc->type));
1555 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1556 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1557 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1559 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1561 /* print decoders/encoders when there's more than one or their
1562 * names are different from codec name */
1563 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1564 if (strcmp(codec->name, desc->name)) {
1565 print_codecs_for_id(desc->id, 0);
1570 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1571 if (strcmp(codec->name, desc->name)) {
1572 print_codecs_for_id(desc->id, 1);
1583 static void print_codecs(int encoder)
1585 const AVCodecDescriptor **codecs;
1586 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1591 " S..... = Subtitle\n"
1592 " .F.... = Frame-level multithreading\n"
1593 " ..S... = Slice-level multithreading\n"
1594 " ...X.. = Codec is experimental\n"
1595 " ....B. = Supports draw_horiz_band\n"
1596 " .....D = Supports direct rendering method 1\n"
1598 encoder ? "Encoders" : "Decoders");
1599 for (i = 0; i < nb_codecs; i++) {
1600 const AVCodecDescriptor *desc = codecs[i];
1601 const AVCodec *codec = NULL;
1603 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1604 printf(" %c", get_media_type_char(desc->type));
1605 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1606 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1607 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1608 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1609 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1611 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1612 if (strcmp(codec->name, desc->name))
1613 printf(" (codec %s)", desc->name);
1621 int show_decoders(void *optctx, const char *opt, const char *arg)
1627 int show_encoders(void *optctx, const char *opt, const char *arg)
1633 int show_bsfs(void *optctx, const char *opt, const char *arg)
1635 const AVBitStreamFilter *bsf = NULL;
1636 void *opaque = NULL;
1638 printf("Bitstream filters:\n");
1639 while ((bsf = av_bsf_iterate(&opaque)))
1640 printf("%s\n", bsf->name);
1645 int show_protocols(void *optctx, const char *opt, const char *arg)
1647 void *opaque = NULL;
1650 printf("Supported file protocols:\n"
1652 while ((name = avio_enum_protocols(&opaque, 0)))
1653 printf(" %s\n", name);
1654 printf("Output:\n");
1655 while ((name = avio_enum_protocols(&opaque, 1)))
1656 printf(" %s\n", name);
1660 int show_filters(void *optctx, const char *opt, const char *arg)
1663 const AVFilter *filter = NULL;
1664 char descr[64], *descr_cur;
1665 void *opaque = NULL;
1667 const AVFilterPad *pad;
1670 " T.. = Timeline support\n"
1671 " .S. = Slice threading\n"
1672 " ..C = Command support\n"
1673 " A = Audio input/output\n"
1674 " V = Video input/output\n"
1675 " N = Dynamic number and/or type of input/output\n"
1676 " | = Source or sink filter\n");
1677 while ((filter = av_filter_iterate(&opaque))) {
1679 for (i = 0; i < 2; i++) {
1681 *(descr_cur++) = '-';
1682 *(descr_cur++) = '>';
1684 pad = i ? filter->outputs : filter->inputs;
1685 for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1686 if (descr_cur >= descr + sizeof(descr) - 4)
1688 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1691 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1692 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1695 printf(" %c%c%c %-17s %-10s %s\n",
1696 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1697 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1698 filter->process_command ? 'C' : '.',
1699 filter->name, descr, filter->description);
1702 printf("No filters available: libavfilter disabled\n");
1707 int show_colors(void *optctx, const char *opt, const char *arg)
1713 printf("%-32s #RRGGBB\n", "name");
1715 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1716 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1721 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1723 const AVPixFmtDescriptor *pix_desc = NULL;
1725 printf("Pixel formats:\n"
1726 "I.... = Supported Input format for conversion\n"
1727 ".O... = Supported Output format for conversion\n"
1728 "..H.. = Hardware accelerated format\n"
1729 "...P. = Paletted format\n"
1730 "....B = Bitstream format\n"
1731 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1735 # define sws_isSupportedInput(x) 0
1736 # define sws_isSupportedOutput(x) 0
1739 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1740 enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1741 printf("%c%c%c%c%c %-16s %d %2d\n",
1742 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1743 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1744 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1745 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1746 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1748 pix_desc->nb_components,
1749 av_get_bits_per_pixel(pix_desc));
1754 int show_layouts(void *optctx, const char *opt, const char *arg)
1758 const char *name, *descr;
1760 printf("Individual channels:\n"
1761 "NAME DESCRIPTION\n");
1762 for (i = 0; i < 63; i++) {
1763 name = av_get_channel_name((uint64_t)1 << i);
1766 descr = av_get_channel_description((uint64_t)1 << i);
1767 printf("%-14s %s\n", name, descr);
1769 printf("\nStandard channel layouts:\n"
1770 "NAME DECOMPOSITION\n");
1771 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1773 printf("%-14s ", name);
1774 for (j = 1; j; j <<= 1)
1776 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1783 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1787 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1788 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1792 static void show_help_codec(const char *name, int encoder)
1794 const AVCodecDescriptor *desc;
1795 const AVCodec *codec;
1798 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1802 codec = encoder ? avcodec_find_encoder_by_name(name) :
1803 avcodec_find_decoder_by_name(name);
1807 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1810 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1816 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1817 "but no %s for it are available. FFmpeg might need to be "
1818 "recompiled with additional external libraries.\n",
1819 name, encoder ? "encoders" : "decoders");
1822 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1827 static void show_help_demuxer(const char *name)
1829 const AVInputFormat *fmt = av_find_input_format(name);
1832 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1836 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1838 if (fmt->extensions)
1839 printf(" Common extensions: %s.\n", fmt->extensions);
1841 if (fmt->priv_class)
1842 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1845 static void show_help_muxer(const char *name)
1847 const AVCodecDescriptor *desc;
1848 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1851 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1855 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1857 if (fmt->extensions)
1858 printf(" Common extensions: %s.\n", fmt->extensions);
1860 printf(" Mime type: %s.\n", fmt->mime_type);
1861 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1862 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1863 printf(" Default video codec: %s.\n", desc->name);
1865 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1866 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1867 printf(" Default audio codec: %s.\n", desc->name);
1869 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1870 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1871 printf(" Default subtitle codec: %s.\n", desc->name);
1874 if (fmt->priv_class)
1875 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1879 static void show_help_filter(const char *name)
1882 const AVFilter *f = avfilter_get_by_name(name);
1886 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1889 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1893 printf("Filter %s\n", f->name);
1895 printf(" %s\n", f->description);
1897 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1898 printf(" slice threading supported\n");
1900 printf(" Inputs:\n");
1901 count = avfilter_pad_count(f->inputs);
1902 for (i = 0; i < count; i++) {
1903 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1904 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1906 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1907 printf(" dynamic (depending on the options)\n");
1909 printf(" none (source filter)\n");
1911 printf(" Outputs:\n");
1912 count = avfilter_pad_count(f->outputs);
1913 for (i = 0; i < count; i++) {
1914 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1915 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1917 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1918 printf(" dynamic (depending on the options)\n");
1920 printf(" none (sink filter)\n");
1923 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1924 AV_OPT_FLAG_AUDIO_PARAM);
1925 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1926 printf("This filter has support for timeline through the 'enable' option.\n");
1928 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1929 "can not to satisfy request\n");
1934 static void show_help_bsf(const char *name)
1936 const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
1939 av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
1943 printf("Bit stream filter %s\n", bsf->name);
1944 PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
1945 AV_CODEC_ID_NONE, GET_CODEC_NAME);
1946 if (bsf->priv_class)
1947 show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
1950 int show_help(void *optctx, const char *opt, const char *arg)
1953 av_log_set_callback(log_callback_help);
1955 topic = av_strdup(arg ? arg : "");
1957 return AVERROR(ENOMEM);
1958 par = strchr(topic, '=');
1963 show_help_default(topic, par);
1964 } else if (!strcmp(topic, "decoder")) {
1965 show_help_codec(par, 0);
1966 } else if (!strcmp(topic, "encoder")) {
1967 show_help_codec(par, 1);
1968 } else if (!strcmp(topic, "demuxer")) {
1969 show_help_demuxer(par);
1970 } else if (!strcmp(topic, "muxer")) {
1971 show_help_muxer(par);
1973 } else if (!strcmp(topic, "filter")) {
1974 show_help_filter(par);
1976 } else if (!strcmp(topic, "bsf")) {
1979 show_help_default(topic, par);
1986 int read_yesno(void)
1989 int yesno = (av_toupper(c) == 'Y');
1991 while (c != '\n' && c != EOF)
1997 FILE *get_preset_file(char *filename, size_t filename_size,
1998 const char *preset_name, int is_path,
1999 const char *codec_name)
2003 const char *base[3] = { getenv("FFMPEG_DATADIR"),
2008 av_strlcpy(filename, preset_name, filename_size);
2009 f = fopen(filename, "r");
2012 char datadir[MAX_PATH], *ls;
2015 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
2017 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
2018 if (*ls == '\\') *ls = '/';
2020 if (ls = strrchr(datadir, '/'))
2023 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
2028 for (i = 0; i < 3 && !f; i++) {
2031 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
2032 i != 1 ? "" : "/.ffmpeg", preset_name);
2033 f = fopen(filename, "r");
2034 if (!f && codec_name) {
2035 snprintf(filename, filename_size,
2036 "%s%s/%s-%s.ffpreset",
2037 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
2039 f = fopen(filename, "r");
2047 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
2049 int ret = avformat_match_stream_specifier(s, st, spec);
2051 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
2055 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
2056 AVFormatContext *s, AVStream *st, AVCodec *codec)
2058 AVDictionary *ret = NULL;
2059 AVDictionaryEntry *t = NULL;
2060 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
2061 : AV_OPT_FLAG_DECODING_PARAM;
2063 const AVClass *cc = avcodec_get_class();
2066 codec = s->oformat ? avcodec_find_encoder(codec_id)
2067 : avcodec_find_decoder(codec_id);
2069 switch (st->codecpar->codec_type) {
2070 case AVMEDIA_TYPE_VIDEO:
2072 flags |= AV_OPT_FLAG_VIDEO_PARAM;
2074 case AVMEDIA_TYPE_AUDIO:
2076 flags |= AV_OPT_FLAG_AUDIO_PARAM;
2078 case AVMEDIA_TYPE_SUBTITLE:
2080 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
2084 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2085 char *p = strchr(t->key, ':');
2087 /* check stream specification in opt name */
2089 switch (check_stream_specifier(s, st, p + 1)) {
2090 case 1: *p = 0; break;
2092 default: exit_program(1);
2095 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2097 (codec->priv_class &&
2098 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2099 AV_OPT_SEARCH_FAKE_OBJ)))
2100 av_dict_set(&ret, t->key, t->value, 0);
2101 else if (t->key[0] == prefix &&
2102 av_opt_find(&cc, t->key + 1, NULL, flags,
2103 AV_OPT_SEARCH_FAKE_OBJ))
2104 av_dict_set(&ret, t->key + 1, t->value, 0);
2112 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2113 AVDictionary *codec_opts)
2116 AVDictionary **opts;
2120 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2122 av_log(NULL, AV_LOG_ERROR,
2123 "Could not alloc memory for stream options.\n");
2126 for (i = 0; i < s->nb_streams; i++)
2127 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
2128 s, s->streams[i], NULL);
2132 void *grow_array(void *array, int elem_size, int *size, int new_size)
2134 if (new_size >= INT_MAX / elem_size) {
2135 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2138 if (*size < new_size) {
2139 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2141 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2144 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2151 double get_rotation(AVStream *st)
2153 uint8_t* displaymatrix = av_stream_get_side_data(st,
2154 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2157 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2159 theta -= 360*floor(theta/360 + 0.9/360);
2161 if (fabs(theta - 90*round(theta/90)) > 2)
2162 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2163 "If you want to help, upload a sample "
2164 "of this file to ftp://upload.ffmpeg.org/incoming/ "
2165 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2171 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2174 AVDeviceInfoList *device_list = NULL;
2176 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2177 return AVERROR(EINVAL);
2179 printf("Auto-detected sources for %s:\n", fmt->name);
2180 if (!fmt->get_device_list) {
2181 ret = AVERROR(ENOSYS);
2182 printf("Cannot list sources. Not implemented.\n");
2186 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2187 printf("Cannot list sources.\n");
2191 for (i = 0; i < device_list->nb_devices; i++) {
2192 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2193 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2197 avdevice_free_list_devices(&device_list);
2201 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2204 AVDeviceInfoList *device_list = NULL;
2206 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2207 return AVERROR(EINVAL);
2209 printf("Auto-detected sinks for %s:\n", fmt->name);
2210 if (!fmt->get_device_list) {
2211 ret = AVERROR(ENOSYS);
2212 printf("Cannot list sinks. Not implemented.\n");
2216 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2217 printf("Cannot list sinks.\n");
2221 for (i = 0; i < device_list->nb_devices; i++) {
2222 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2223 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2227 avdevice_free_list_devices(&device_list);
2231 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2235 char *opts_str = NULL;
2236 av_assert0(dev && opts);
2237 *dev = av_strdup(arg);
2239 return AVERROR(ENOMEM);
2240 if ((opts_str = strchr(*dev, ','))) {
2241 *(opts_str++) = '\0';
2242 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2248 printf("\nDevice name is not provided.\n"
2249 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2253 int show_sources(void *optctx, const char *opt, const char *arg)
2255 AVInputFormat *fmt = NULL;
2257 AVDictionary *opts = NULL;
2259 int error_level = av_log_get_level();
2261 av_log_set_level(AV_LOG_ERROR);
2263 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2267 fmt = av_input_audio_device_next(fmt);
2269 if (!strcmp(fmt->name, "lavfi"))
2270 continue; //it's pointless to probe lavfi
2271 if (dev && !av_match_name(dev, fmt->name))
2273 print_device_sources(fmt, opts);
2277 fmt = av_input_video_device_next(fmt);
2279 if (dev && !av_match_name(dev, fmt->name))
2281 print_device_sources(fmt, opts);
2285 av_dict_free(&opts);
2287 av_log_set_level(error_level);
2291 int show_sinks(void *optctx, const char *opt, const char *arg)
2293 AVOutputFormat *fmt = NULL;
2295 AVDictionary *opts = NULL;
2297 int error_level = av_log_get_level();
2299 av_log_set_level(AV_LOG_ERROR);
2301 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2305 fmt = av_output_audio_device_next(fmt);
2307 if (dev && !av_match_name(dev, fmt->name))
2309 print_device_sinks(fmt, opts);
2313 fmt = av_output_video_device_next(fmt);
2315 if (dev && !av_match_name(dev, fmt->name))
2317 print_device_sinks(fmt, opts);
2321 av_dict_free(&opts);
2323 av_log_set_level(error_level);