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"
55 #include "libavutil/version.h"
58 #include "libavformat/network.h"
60 #if HAVE_SYS_RESOURCE_H
62 #include <sys/resource.h>
65 static int init_report(const char *env);
67 AVDictionary *sws_dict;
68 AVDictionary *swr_opts;
69 AVDictionary *format_opts, *codec_opts, *resample_opts;
71 static FILE *report_file;
72 static int report_file_level = AV_LOG_DEBUG;
77 av_dict_set(&sws_dict, "flags", "bicubic", 0);
80 void uninit_opts(void)
82 av_dict_free(&swr_opts);
83 av_dict_free(&sws_dict);
84 av_dict_free(&format_opts);
85 av_dict_free(&codec_opts);
86 av_dict_free(&resample_opts);
89 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
91 vfprintf(stdout, fmt, vl);
94 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
98 static int print_prefix = 1;
101 av_log_default_callback(ptr, level, fmt, vl);
102 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
104 if (report_file_level >= level) {
105 fputs(line, report_file);
110 void init_dynload(void)
113 /* Calling SetDllDirectory with the empty string (but not NULL) removes the
114 * current working directory from the DLL search path as a security pre-caution. */
119 static void (*program_exit)(int ret);
121 void register_exit(void (*cb)(int ret))
126 void exit_program(int ret)
134 double parse_number_or_die(const char *context, const char *numstr, int type,
135 double min, double max)
139 double d = av_strtod(numstr, &tail);
141 error = "Expected number for %s but found: %s\n";
142 else if (d < min || d > max)
143 error = "The value for %s was %s which is not within %f - %f\n";
144 else if (type == OPT_INT64 && (int64_t)d != d)
145 error = "Expected int64 for %s but found %s\n";
146 else if (type == OPT_INT && (int)d != d)
147 error = "Expected int for %s but found %s\n";
150 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
155 int64_t parse_time_or_die(const char *context, const char *timestr,
159 if (av_parse_time(&us, timestr, is_duration) < 0) {
160 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
161 is_duration ? "duration" : "date", context, timestr);
167 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
168 int rej_flags, int alt_flags)
174 for (po = options; po->name; po++) {
177 if (((po->flags & req_flags) != req_flags) ||
178 (alt_flags && !(po->flags & alt_flags)) ||
179 (po->flags & rej_flags))
186 av_strlcpy(buf, po->name, sizeof(buf));
188 av_strlcat(buf, " ", sizeof(buf));
189 av_strlcat(buf, po->argname, sizeof(buf));
191 printf("-%-17s %s\n", buf, po->help);
196 void show_help_children(const AVClass *class, int flags)
198 const AVClass *child = NULL;
200 av_opt_show2(&class, NULL, flags, 0);
204 while (child = av_opt_child_class_next(class, child))
205 show_help_children(child, flags);
208 static const OptionDef *find_option(const OptionDef *po, const char *name)
210 const char *p = strchr(name, ':');
211 int len = p ? p - name : strlen(name);
214 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
221 /* _WIN32 means using the windows libc - cygwin doesn't define that
222 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
223 * it doesn't provide the actual command line via GetCommandLineW(). */
224 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
226 #include <shellapi.h>
227 /* Will be leaked on exit */
228 static char** win32_argv_utf8 = NULL;
229 static int win32_argc = 0;
232 * Prepare command line arguments for executable.
233 * For Windows - perform wide-char to UTF-8 conversion.
234 * Input arguments should be main() function arguments.
235 * @param argc_ptr Arguments number (including executable)
236 * @param argv_ptr Arguments list.
238 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
242 int i, buffsize = 0, offset = 0;
244 if (win32_argv_utf8) {
245 *argc_ptr = win32_argc;
246 *argv_ptr = win32_argv_utf8;
251 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
252 if (win32_argc <= 0 || !argv_w)
255 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
256 for (i = 0; i < win32_argc; i++)
257 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
258 NULL, 0, NULL, NULL);
260 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
261 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
262 if (!win32_argv_utf8) {
267 for (i = 0; i < win32_argc; i++) {
268 win32_argv_utf8[i] = &argstr_flat[offset];
269 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
270 &argstr_flat[offset],
271 buffsize - offset, NULL, NULL);
273 win32_argv_utf8[i] = NULL;
276 *argc_ptr = win32_argc;
277 *argv_ptr = win32_argv_utf8;
280 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
284 #endif /* HAVE_COMMANDLINETOARGVW */
286 static int write_option(void *optctx, const OptionDef *po, const char *opt,
289 /* new-style options contain an offset into optctx, old-style address of
291 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
292 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
295 if (po->flags & OPT_SPEC) {
296 SpecifierOpt **so = dst;
297 char *p = strchr(opt, ':');
300 dstcount = (int *)(so + 1);
301 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
302 str = av_strdup(p ? p + 1 : "");
304 return AVERROR(ENOMEM);
305 (*so)[*dstcount - 1].specifier = str;
306 dst = &(*so)[*dstcount - 1].u;
309 if (po->flags & OPT_STRING) {
311 str = av_strdup(arg);
314 return AVERROR(ENOMEM);
316 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
317 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
318 } else if (po->flags & OPT_INT64) {
319 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
320 } else if (po->flags & OPT_TIME) {
321 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
322 } else if (po->flags & OPT_FLOAT) {
323 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
324 } else if (po->flags & OPT_DOUBLE) {
325 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
326 } else if (po->u.func_arg) {
327 int ret = po->u.func_arg(optctx, opt, arg);
329 av_log(NULL, AV_LOG_ERROR,
330 "Failed to set value '%s' for option '%s': %s\n",
331 arg, opt, av_err2str(ret));
335 if (po->flags & OPT_EXIT)
341 int parse_option(void *optctx, const char *opt, const char *arg,
342 const OptionDef *options)
347 po = find_option(options, opt);
348 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
349 /* handle 'no' bool option */
350 po = find_option(options, opt + 2);
351 if ((po->name && (po->flags & OPT_BOOL)))
353 } else if (po->flags & OPT_BOOL)
357 po = find_option(options, "default");
359 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
360 return AVERROR(EINVAL);
362 if (po->flags & HAS_ARG && !arg) {
363 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
364 return AVERROR(EINVAL);
367 ret = write_option(optctx, po, opt, arg);
371 return !!(po->flags & HAS_ARG);
374 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
375 void (*parse_arg_function)(void *, const char*))
378 int optindex, handleoptions = 1, ret;
380 /* perform system-dependent conversions for arguments list */
381 prepare_app_arguments(&argc, &argv);
385 while (optindex < argc) {
386 opt = argv[optindex++];
388 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
389 if (opt[1] == '-' && opt[2] == '\0') {
395 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
399 if (parse_arg_function)
400 parse_arg_function(optctx, opt);
405 int parse_optgroup(void *optctx, OptionGroup *g)
409 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
410 g->group_def->name, g->arg);
412 for (i = 0; i < g->nb_opts; i++) {
413 Option *o = &g->opts[i];
415 if (g->group_def->flags &&
416 !(g->group_def->flags & o->opt->flags)) {
417 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
418 "%s %s -- you are trying to apply an input option to an "
419 "output file or vice versa. Move this option before the "
420 "file it belongs to.\n", o->key, o->opt->help,
421 g->group_def->name, g->arg);
422 return AVERROR(EINVAL);
425 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
426 o->key, o->opt->help, o->val);
428 ret = write_option(optctx, o->opt, o->key, o->val);
433 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
438 int locate_option(int argc, char **argv, const OptionDef *options,
444 for (i = 1; i < argc; i++) {
445 const char *cur_opt = argv[i];
447 if (*cur_opt++ != '-')
450 po = find_option(options, cur_opt);
451 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
452 po = find_option(options, cur_opt + 2);
454 if ((!po->name && !strcmp(cur_opt, optname)) ||
455 (po->name && !strcmp(optname, po->name)))
458 if (!po->name || po->flags & HAS_ARG)
464 static void dump_argument(const char *a)
466 const unsigned char *p;
469 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
470 *p == '_' || (*p >= 'a' && *p <= 'z')))
473 fputs(a, report_file);
476 fputc('"', report_file);
477 for (p = a; *p; p++) {
478 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
479 fprintf(report_file, "\\%c", *p);
480 else if (*p < ' ' || *p > '~')
481 fprintf(report_file, "\\x%02x", *p);
483 fputc(*p, report_file);
485 fputc('"', report_file);
488 static void check_options(const OptionDef *po)
491 if (po->flags & OPT_PERFILE)
492 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
497 void parse_loglevel(int argc, char **argv, const OptionDef *options)
499 int idx = locate_option(argc, argv, options, "loglevel");
502 check_options(options);
505 idx = locate_option(argc, argv, options, "v");
506 if (idx && argv[idx + 1])
507 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
508 idx = locate_option(argc, argv, options, "report");
509 if ((env = getenv("FFREPORT")) || idx) {
513 fprintf(report_file, "Command line:\n");
514 for (i = 0; i < argc; i++) {
515 dump_argument(argv[i]);
516 fputc(i < argc - 1 ? ' ' : '\n', report_file);
521 idx = locate_option(argc, argv, options, "hide_banner");
526 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
527 int opt_flags, int search_flags)
529 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
535 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
536 int opt_default(void *optctx, const char *opt, const char *arg)
540 char opt_stripped[128];
542 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
543 #if CONFIG_AVRESAMPLE
544 const AVClass *rc = avresample_get_class();
547 const AVClass *sc = sws_get_class();
549 #if CONFIG_SWRESAMPLE
550 const AVClass *swr_class = swr_get_class();
553 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
554 av_log_set_level(AV_LOG_DEBUG);
556 if (!(p = strchr(opt, ':')))
557 p = opt + strlen(opt);
558 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
560 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
561 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
562 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
563 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
564 av_dict_set(&codec_opts, opt, arg, FLAGS);
567 if ((o = opt_find(&fc, opt, NULL, 0,
568 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
569 av_dict_set(&format_opts, opt, arg, FLAGS);
571 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
575 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
576 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
577 struct SwsContext *sws = sws_alloc_context();
578 int ret = av_opt_set(sws, opt, arg, 0);
579 sws_freeContext(sws);
580 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
581 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
582 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
583 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
584 return AVERROR(EINVAL);
587 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
591 av_dict_set(&sws_dict, opt, arg, FLAGS);
596 if (!consumed && !strcmp(opt, "sws_flags")) {
597 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
601 #if CONFIG_SWRESAMPLE
602 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
603 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
604 struct SwrContext *swr = swr_alloc();
605 int ret = av_opt_set(swr, opt, arg, 0);
608 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
611 av_dict_set(&swr_opts, opt, arg, FLAGS);
615 #if CONFIG_AVRESAMPLE
616 if ((o=opt_find(&rc, opt, NULL, 0,
617 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
618 av_dict_set(&resample_opts, opt, arg, FLAGS);
625 return AVERROR_OPTION_NOT_FOUND;
629 * Check whether given option is a group separator.
631 * @return index of the group definition that matched or -1 if none
633 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
638 for (i = 0; i < nb_groups; i++) {
639 const OptionGroupDef *p = &groups[i];
640 if (p->sep && !strcmp(p->sep, opt))
648 * Finish parsing an option group.
650 * @param group_idx which group definition should this group belong to
651 * @param arg argument of the group delimiting option
653 static void finish_group(OptionParseContext *octx, int group_idx,
656 OptionGroupList *l = &octx->groups[group_idx];
659 GROW_ARRAY(l->groups, l->nb_groups);
660 g = &l->groups[l->nb_groups - 1];
662 *g = octx->cur_group;
664 g->group_def = l->group_def;
665 g->sws_dict = sws_dict;
666 g->swr_opts = swr_opts;
667 g->codec_opts = codec_opts;
668 g->format_opts = format_opts;
669 g->resample_opts = resample_opts;
673 resample_opts = NULL;
678 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
682 * Add an option instance to currently parsed group.
684 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
685 const char *key, const char *val)
687 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
688 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
690 GROW_ARRAY(g->opts, g->nb_opts);
691 g->opts[g->nb_opts - 1].opt = opt;
692 g->opts[g->nb_opts - 1].key = key;
693 g->opts[g->nb_opts - 1].val = val;
696 static void init_parse_context(OptionParseContext *octx,
697 const OptionGroupDef *groups, int nb_groups)
699 static const OptionGroupDef global_group = { "global" };
702 memset(octx, 0, sizeof(*octx));
704 octx->nb_groups = nb_groups;
705 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
709 for (i = 0; i < octx->nb_groups; i++)
710 octx->groups[i].group_def = &groups[i];
712 octx->global_opts.group_def = &global_group;
713 octx->global_opts.arg = "";
718 void uninit_parse_context(OptionParseContext *octx)
722 for (i = 0; i < octx->nb_groups; i++) {
723 OptionGroupList *l = &octx->groups[i];
725 for (j = 0; j < l->nb_groups; j++) {
726 av_freep(&l->groups[j].opts);
727 av_dict_free(&l->groups[j].codec_opts);
728 av_dict_free(&l->groups[j].format_opts);
729 av_dict_free(&l->groups[j].resample_opts);
731 av_dict_free(&l->groups[j].sws_dict);
732 av_dict_free(&l->groups[j].swr_opts);
734 av_freep(&l->groups);
736 av_freep(&octx->groups);
738 av_freep(&octx->cur_group.opts);
739 av_freep(&octx->global_opts.opts);
744 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
745 const OptionDef *options,
746 const OptionGroupDef *groups, int nb_groups)
751 /* perform system-dependent conversions for arguments list */
752 prepare_app_arguments(&argc, &argv);
754 init_parse_context(octx, groups, nb_groups);
755 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
757 while (optindex < argc) {
758 const char *opt = argv[optindex++], *arg;
762 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
764 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
768 /* unnamed group separators, e.g. output filename */
769 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
770 finish_group(octx, 0, opt);
771 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
776 #define GET_ARG(arg) \
778 arg = argv[optindex++]; \
780 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
781 return AVERROR(EINVAL); \
785 /* named group separators, e.g. -i */
786 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
788 finish_group(octx, ret, arg);
789 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
790 groups[ret].name, arg);
795 po = find_option(options, opt);
797 if (po->flags & OPT_EXIT) {
798 /* optional argument, e.g. -h */
799 arg = argv[optindex++];
800 } else if (po->flags & HAS_ARG) {
806 add_opt(octx, po, opt, arg);
807 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
808 "argument '%s'.\n", po->name, po->help, arg);
813 if (argv[optindex]) {
814 ret = opt_default(NULL, opt, argv[optindex]);
816 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
817 "argument '%s'.\n", opt, argv[optindex]);
820 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
821 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
822 "with argument '%s'.\n", opt, argv[optindex]);
827 /* boolean -nofoo options */
828 if (opt[0] == 'n' && opt[1] == 'o' &&
829 (po = find_option(options, opt + 2)) &&
830 po->name && po->flags & OPT_BOOL) {
831 add_opt(octx, po, opt, "0");
832 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
833 "argument 0.\n", po->name, po->help);
837 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
838 return AVERROR_OPTION_NOT_FOUND;
841 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
842 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
845 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
850 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
853 unsigned flags = av_get_cpu_flags();
855 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
858 av_force_cpu_flags(flags);
862 int opt_loglevel(void *optctx, const char *opt, const char *arg)
864 const struct { const char *name; int level; } log_levels[] = {
865 { "quiet" , AV_LOG_QUIET },
866 { "panic" , AV_LOG_PANIC },
867 { "fatal" , AV_LOG_FATAL },
868 { "error" , AV_LOG_ERROR },
869 { "warning", AV_LOG_WARNING },
870 { "info" , AV_LOG_INFO },
871 { "verbose", AV_LOG_VERBOSE },
872 { "debug" , AV_LOG_DEBUG },
873 { "trace" , AV_LOG_TRACE },
880 flags = av_log_get_flags();
881 tail = strstr(arg, "repeat");
883 flags &= ~AV_LOG_SKIP_REPEATED;
885 flags |= AV_LOG_SKIP_REPEATED;
887 av_log_set_flags(flags);
889 arg += 6 + (arg[6]=='+');
893 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
894 if (!strcmp(log_levels[i].name, arg)) {
895 av_log_set_level(log_levels[i].level);
900 level = strtol(arg, &tail, 10);
902 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
903 "Possible levels are numbers or:\n", arg);
904 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
905 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
908 av_log_set_level(level);
912 static void expand_filename_template(AVBPrint *bp, const char *template,
917 while ((c = *(template++))) {
919 if (!(c = *(template++)))
923 av_bprintf(bp, "%s", program_name);
926 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
927 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
928 tm->tm_hour, tm->tm_min, tm->tm_sec);
931 av_bprint_chars(bp, c, 1);
935 av_bprint_chars(bp, c, 1);
940 static int init_report(const char *env)
942 char *filename_template = NULL;
949 if (report_file) /* already opened */
952 tm = localtime(&now);
954 while (env && *env) {
955 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
957 av_log(NULL, AV_LOG_ERROR,
958 "Failed to parse FFREPORT environment variable: %s\n",
965 if (!strcmp(key, "file")) {
966 av_free(filename_template);
967 filename_template = val;
969 } else if (!strcmp(key, "level")) {
971 report_file_level = strtol(val, &tail, 10);
973 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
977 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
983 av_bprint_init(&filename, 0, 1);
984 expand_filename_template(&filename,
985 av_x_if_null(filename_template, "%p-%t.log"), tm);
986 av_free(filename_template);
987 if (!av_bprint_is_complete(&filename)) {
988 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
989 return AVERROR(ENOMEM);
992 report_file = fopen(filename.str, "w");
994 int ret = AVERROR(errno);
995 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
996 filename.str, strerror(errno));
999 av_log_set_callback(log_callback_report);
1000 av_log(NULL, AV_LOG_INFO,
1001 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1002 "Report written to \"%s\"\n",
1004 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1005 tm->tm_hour, tm->tm_min, tm->tm_sec,
1007 av_bprint_finalize(&filename, NULL);
1011 int opt_report(const char *opt)
1013 return init_report(NULL);
1016 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1021 max = strtol(arg, &tail, 10);
1023 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1030 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1033 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1034 struct rlimit rl = { lim, lim + 1 };
1035 if (setrlimit(RLIMIT_CPU, &rl))
1036 perror("setrlimit");
1038 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1043 void print_error(const char *filename, int err)
1046 const char *errbuf_ptr = errbuf;
1048 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1049 errbuf_ptr = strerror(AVUNERROR(err));
1050 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1053 static int warned_cfg = 0;
1056 #define SHOW_VERSION 2
1057 #define SHOW_CONFIG 4
1058 #define SHOW_COPYRIGHT 8
1060 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1061 if (CONFIG_##LIBNAME) { \
1062 const char *indent = flags & INDENT? " " : ""; \
1063 if (flags & SHOW_VERSION) { \
1064 unsigned int version = libname##_version(); \
1065 av_log(NULL, level, \
1066 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1068 LIB##LIBNAME##_VERSION_MAJOR, \
1069 LIB##LIBNAME##_VERSION_MINOR, \
1070 LIB##LIBNAME##_VERSION_MICRO, \
1071 AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1072 AV_VERSION_MICRO(version)); \
1074 if (flags & SHOW_CONFIG) { \
1075 const char *cfg = libname##_configuration(); \
1076 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1077 if (!warned_cfg) { \
1078 av_log(NULL, level, \
1079 "%sWARNING: library configuration mismatch\n", \
1083 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1084 indent, #libname, cfg); \
1089 static void print_all_libs_info(int flags, int level)
1091 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1092 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1093 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1094 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1095 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1096 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1097 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1098 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1099 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1102 static void print_program_info(int flags, int level)
1104 const char *indent = flags & INDENT? " " : "";
1106 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1107 if (flags & SHOW_COPYRIGHT)
1108 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1109 program_birth_year, CONFIG_THIS_YEAR);
1110 av_log(NULL, level, "\n");
1111 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1113 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1116 static void print_buildconf(int flags, int level)
1118 const char *indent = flags & INDENT ? " " : "";
1119 char str[] = { FFMPEG_CONFIGURATION };
1120 char *conflist, *remove_tilde, *splitconf;
1122 // Change all the ' --' strings to '~--' so that
1123 // they can be identified as tokens.
1124 while ((conflist = strstr(str, " --")) != NULL) {
1125 strncpy(conflist, "~--", 3);
1128 // Compensate for the weirdness this would cause
1129 // when passing 'pkg-config --static'.
1130 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1131 strncpy(remove_tilde, "pkg-config ", 11);
1134 splitconf = strtok(str, "~");
1135 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1136 while (splitconf != NULL) {
1137 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1138 splitconf = strtok(NULL, "~");
1142 void show_banner(int argc, char **argv, const OptionDef *options)
1144 int idx = locate_option(argc, argv, options, "version");
1145 if (hide_banner || idx)
1148 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1149 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1150 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1153 int show_version(void *optctx, const char *opt, const char *arg)
1155 av_log_set_callback(log_callback_help);
1156 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1157 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1162 int show_buildconf(void *optctx, const char *opt, const char *arg)
1164 av_log_set_callback(log_callback_help);
1165 print_buildconf (INDENT|0, AV_LOG_INFO);
1170 int show_license(void *optctx, const char *opt, const char *arg)
1174 "This version of %s has nonfree parts compiled in.\n"
1175 "Therefore it is not legally redistributable.\n",
1179 "%s is free software; you can redistribute it and/or modify\n"
1180 "it under the terms of the GNU General Public License as published by\n"
1181 "the Free Software Foundation; either version 3 of the License, or\n"
1182 "(at your option) any later version.\n"
1184 "%s is distributed in the hope that it will be useful,\n"
1185 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1186 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1187 "GNU General Public License for more details.\n"
1189 "You should have received a copy of the GNU General Public License\n"
1190 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1191 program_name, program_name, program_name );
1194 "%s is free software; you can redistribute it and/or modify\n"
1195 "it under the terms of the GNU General Public License as published by\n"
1196 "the Free Software Foundation; either version 2 of the License, or\n"
1197 "(at your option) any later version.\n"
1199 "%s is distributed in the hope that it will be useful,\n"
1200 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1201 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1202 "GNU General Public License for more details.\n"
1204 "You should have received a copy of the GNU General Public License\n"
1205 "along with %s; if not, write to the Free Software\n"
1206 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1207 program_name, program_name, program_name );
1210 "%s is free software; you can redistribute it and/or modify\n"
1211 "it under the terms of the GNU Lesser General Public License as published by\n"
1212 "the Free Software Foundation; either version 3 of the License, or\n"
1213 "(at your option) any later version.\n"
1215 "%s is distributed in the hope that it will be useful,\n"
1216 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1217 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1218 "GNU Lesser General Public License for more details.\n"
1220 "You should have received a copy of the GNU Lesser General Public License\n"
1221 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1222 program_name, program_name, program_name );
1225 "%s is free software; you can redistribute it and/or\n"
1226 "modify it under the terms of the GNU Lesser General Public\n"
1227 "License as published by the Free Software Foundation; either\n"
1228 "version 2.1 of the License, or (at your option) any later version.\n"
1230 "%s is distributed in the hope that it will be useful,\n"
1231 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1232 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1233 "Lesser General Public License for more details.\n"
1235 "You should have received a copy of the GNU Lesser General Public\n"
1236 "License along with %s; if not, write to the Free Software\n"
1237 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1238 program_name, program_name, program_name );
1244 static int is_device(const AVClass *avclass)
1248 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1251 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
1253 AVInputFormat *ifmt = NULL;
1254 AVOutputFormat *ofmt = NULL;
1255 const char *last_name;
1259 " D. = Demuxing supported\n"
1260 " .E = Muxing supported\n"
1261 " --\n", device_only ? "Devices:" : "File formats:");
1266 const char *name = NULL;
1267 const char *long_name = NULL;
1269 while ((ofmt = av_oformat_next(ofmt))) {
1270 is_dev = is_device(ofmt->priv_class);
1271 if (!is_dev && device_only)
1273 if ((!name || strcmp(ofmt->name, name) < 0) &&
1274 strcmp(ofmt->name, last_name) > 0) {
1276 long_name = ofmt->long_name;
1280 while ((ifmt = av_iformat_next(ifmt))) {
1281 is_dev = is_device(ifmt->priv_class);
1282 if (!is_dev && device_only)
1284 if ((!name || strcmp(ifmt->name, name) < 0) &&
1285 strcmp(ifmt->name, last_name) > 0) {
1287 long_name = ifmt->long_name;
1290 if (name && strcmp(ifmt->name, name) == 0)
1297 printf(" %s%s %-15s %s\n",
1301 long_name ? long_name:" ");
1306 int show_formats(void *optctx, const char *opt, const char *arg)
1308 return show_formats_devices(optctx, opt, arg, 0);
1311 int show_devices(void *optctx, const char *opt, const char *arg)
1313 return show_formats_devices(optctx, opt, arg, 1);
1316 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1317 if (codec->field) { \
1318 const type *p = codec->field; \
1320 printf(" Supported " list_name ":"); \
1321 while (*p != term) { \
1323 printf(" %s", name); \
1329 static void print_codec(const AVCodec *c)
1331 int encoder = av_codec_is_encoder(c);
1333 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1334 c->long_name ? c->long_name : "");
1336 printf(" General capabilities: ");
1337 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1338 printf("horizband ");
1339 if (c->capabilities & AV_CODEC_CAP_DR1)
1341 if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1343 if (c->capabilities & AV_CODEC_CAP_DELAY)
1345 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1347 if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1348 printf("subframes ");
1349 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1351 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1353 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1354 printf("paramchange ");
1355 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1356 printf("variable ");
1357 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1358 AV_CODEC_CAP_SLICE_THREADS |
1359 AV_CODEC_CAP_AUTO_THREADS))
1361 if (!c->capabilities)
1365 if (c->type == AVMEDIA_TYPE_VIDEO ||
1366 c->type == AVMEDIA_TYPE_AUDIO) {
1367 printf(" Threading capabilities: ");
1368 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1369 AV_CODEC_CAP_SLICE_THREADS |
1370 AV_CODEC_CAP_AUTO_THREADS)) {
1371 case AV_CODEC_CAP_FRAME_THREADS |
1372 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1373 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1374 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1375 case AV_CODEC_CAP_AUTO_THREADS : printf("auto"); break;
1376 default: printf("none"); break;
1381 if (c->supported_framerates) {
1382 const AVRational *fps = c->supported_framerates;
1384 printf(" Supported framerates:");
1386 printf(" %d/%d", fps->num, fps->den);
1391 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1392 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1393 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1394 GET_SAMPLE_RATE_NAME);
1395 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1396 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1397 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1398 0, GET_CH_LAYOUT_DESC);
1400 if (c->priv_class) {
1401 show_help_children(c->priv_class,
1402 AV_OPT_FLAG_ENCODING_PARAM |
1403 AV_OPT_FLAG_DECODING_PARAM);
1407 static char get_media_type_char(enum AVMediaType type)
1410 case AVMEDIA_TYPE_VIDEO: return 'V';
1411 case AVMEDIA_TYPE_AUDIO: return 'A';
1412 case AVMEDIA_TYPE_DATA: return 'D';
1413 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1414 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1415 default: return '?';
1419 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1422 while ((prev = av_codec_next(prev))) {
1423 if (prev->id == id &&
1424 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1430 static int compare_codec_desc(const void *a, const void *b)
1432 const AVCodecDescriptor * const *da = a;
1433 const AVCodecDescriptor * const *db = b;
1435 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1436 strcmp((*da)->name, (*db)->name);
1439 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1441 const AVCodecDescriptor *desc = NULL;
1442 const AVCodecDescriptor **codecs;
1443 unsigned nb_codecs = 0, i = 0;
1445 while ((desc = avcodec_descriptor_next(desc)))
1447 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1448 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1452 while ((desc = avcodec_descriptor_next(desc)))
1454 av_assert0(i == nb_codecs);
1455 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1460 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1462 const AVCodec *codec = NULL;
1464 printf(" (%s: ", encoder ? "encoders" : "decoders");
1466 while ((codec = next_codec_for_id(id, codec, encoder)))
1467 printf("%s ", codec->name);
1472 int show_codecs(void *optctx, const char *opt, const char *arg)
1474 const AVCodecDescriptor **codecs;
1475 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1478 " D..... = Decoding supported\n"
1479 " .E.... = Encoding supported\n"
1480 " ..V... = Video codec\n"
1481 " ..A... = Audio codec\n"
1482 " ..S... = Subtitle codec\n"
1483 " ...I.. = Intra frame-only codec\n"
1484 " ....L. = Lossy compression\n"
1485 " .....S = Lossless compression\n"
1487 for (i = 0; i < nb_codecs; i++) {
1488 const AVCodecDescriptor *desc = codecs[i];
1489 const AVCodec *codec = NULL;
1491 if (strstr(desc->name, "_deprecated"))
1495 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1496 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1498 printf("%c", get_media_type_char(desc->type));
1499 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1500 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1501 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1503 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1505 /* print decoders/encoders when there's more than one or their
1506 * names are different from codec name */
1507 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1508 if (strcmp(codec->name, desc->name)) {
1509 print_codecs_for_id(desc->id, 0);
1514 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1515 if (strcmp(codec->name, desc->name)) {
1516 print_codecs_for_id(desc->id, 1);
1527 static void print_codecs(int encoder)
1529 const AVCodecDescriptor **codecs;
1530 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1535 " S..... = Subtitle\n"
1536 " .F.... = Frame-level multithreading\n"
1537 " ..S... = Slice-level multithreading\n"
1538 " ...X.. = Codec is experimental\n"
1539 " ....B. = Supports draw_horiz_band\n"
1540 " .....D = Supports direct rendering method 1\n"
1542 encoder ? "Encoders" : "Decoders");
1543 for (i = 0; i < nb_codecs; i++) {
1544 const AVCodecDescriptor *desc = codecs[i];
1545 const AVCodec *codec = NULL;
1547 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1548 printf(" %c", get_media_type_char(desc->type));
1549 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1550 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1551 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1552 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1553 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1555 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1556 if (strcmp(codec->name, desc->name))
1557 printf(" (codec %s)", desc->name);
1565 int show_decoders(void *optctx, const char *opt, const char *arg)
1571 int show_encoders(void *optctx, const char *opt, const char *arg)
1577 int show_bsfs(void *optctx, const char *opt, const char *arg)
1579 AVBitStreamFilter *bsf = NULL;
1581 printf("Bitstream filters:\n");
1582 while ((bsf = av_bitstream_filter_next(bsf)))
1583 printf("%s\n", bsf->name);
1588 int show_protocols(void *optctx, const char *opt, const char *arg)
1590 void *opaque = NULL;
1593 printf("Supported file protocols:\n"
1595 while ((name = avio_enum_protocols(&opaque, 0)))
1596 printf(" %s\n", name);
1597 printf("Output:\n");
1598 while ((name = avio_enum_protocols(&opaque, 1)))
1599 printf(" %s\n", name);
1603 int show_filters(void *optctx, const char *opt, const char *arg)
1606 const AVFilter *filter = NULL;
1607 char descr[64], *descr_cur;
1609 const AVFilterPad *pad;
1612 " T.. = Timeline support\n"
1613 " .S. = Slice threading\n"
1614 " ..C = Command support\n"
1615 " A = Audio input/output\n"
1616 " V = Video input/output\n"
1617 " N = Dynamic number and/or type of input/output\n"
1618 " | = Source or sink filter\n");
1619 while ((filter = avfilter_next(filter))) {
1621 for (i = 0; i < 2; i++) {
1623 *(descr_cur++) = '-';
1624 *(descr_cur++) = '>';
1626 pad = i ? filter->outputs : filter->inputs;
1627 for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1628 if (descr_cur >= descr + sizeof(descr) - 4)
1630 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1633 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1634 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1637 printf(" %c%c%c %-17s %-10s %s\n",
1638 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1639 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1640 filter->process_command ? 'C' : '.',
1641 filter->name, descr, filter->description);
1644 printf("No filters available: libavfilter disabled\n");
1649 int show_colors(void *optctx, const char *opt, const char *arg)
1655 printf("%-32s #RRGGBB\n", "name");
1657 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1658 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1663 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1665 const AVPixFmtDescriptor *pix_desc = NULL;
1667 printf("Pixel formats:\n"
1668 "I.... = Supported Input format for conversion\n"
1669 ".O... = Supported Output format for conversion\n"
1670 "..H.. = Hardware accelerated format\n"
1671 "...P. = Paletted format\n"
1672 "....B = Bitstream format\n"
1673 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1677 # define sws_isSupportedInput(x) 0
1678 # define sws_isSupportedOutput(x) 0
1681 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1682 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1683 printf("%c%c%c%c%c %-16s %d %2d\n",
1684 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1685 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1686 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1687 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1688 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1690 pix_desc->nb_components,
1691 av_get_bits_per_pixel(pix_desc));
1696 int show_layouts(void *optctx, const char *opt, const char *arg)
1700 const char *name, *descr;
1702 printf("Individual channels:\n"
1703 "NAME DESCRIPTION\n");
1704 for (i = 0; i < 63; i++) {
1705 name = av_get_channel_name((uint64_t)1 << i);
1708 descr = av_get_channel_description((uint64_t)1 << i);
1709 printf("%-14s %s\n", name, descr);
1711 printf("\nStandard channel layouts:\n"
1712 "NAME DECOMPOSITION\n");
1713 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1715 printf("%-14s ", name);
1716 for (j = 1; j; j <<= 1)
1718 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1725 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1729 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1730 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1734 static void show_help_codec(const char *name, int encoder)
1736 const AVCodecDescriptor *desc;
1737 const AVCodec *codec;
1740 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1744 codec = encoder ? avcodec_find_encoder_by_name(name) :
1745 avcodec_find_decoder_by_name(name);
1749 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1752 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1758 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1759 "but no %s for it are available. FFmpeg might need to be "
1760 "recompiled with additional external libraries.\n",
1761 name, encoder ? "encoders" : "decoders");
1764 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1769 static void show_help_demuxer(const char *name)
1771 const AVInputFormat *fmt = av_find_input_format(name);
1774 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1778 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1780 if (fmt->extensions)
1781 printf(" Common extensions: %s.\n", fmt->extensions);
1783 if (fmt->priv_class)
1784 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1787 static void show_help_muxer(const char *name)
1789 const AVCodecDescriptor *desc;
1790 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1793 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1797 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1799 if (fmt->extensions)
1800 printf(" Common extensions: %s.\n", fmt->extensions);
1802 printf(" Mime type: %s.\n", fmt->mime_type);
1803 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1804 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1805 printf(" Default video codec: %s.\n", desc->name);
1807 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1808 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1809 printf(" Default audio codec: %s.\n", desc->name);
1811 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1812 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1813 printf(" Default subtitle codec: %s.\n", desc->name);
1816 if (fmt->priv_class)
1817 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1821 static void show_help_filter(const char *name)
1824 const AVFilter *f = avfilter_get_by_name(name);
1828 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1831 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1835 printf("Filter %s\n", f->name);
1837 printf(" %s\n", f->description);
1839 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1840 printf(" slice threading supported\n");
1842 printf(" Inputs:\n");
1843 count = avfilter_pad_count(f->inputs);
1844 for (i = 0; i < count; i++) {
1845 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1846 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1848 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1849 printf(" dynamic (depending on the options)\n");
1851 printf(" none (source filter)\n");
1853 printf(" Outputs:\n");
1854 count = avfilter_pad_count(f->outputs);
1855 for (i = 0; i < count; i++) {
1856 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1857 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1859 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1860 printf(" dynamic (depending on the options)\n");
1862 printf(" none (sink filter)\n");
1865 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1866 AV_OPT_FLAG_AUDIO_PARAM);
1867 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1868 printf("This filter has support for timeline through the 'enable' option.\n");
1870 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1871 "can not to satisfy request\n");
1876 int show_help(void *optctx, const char *opt, const char *arg)
1879 av_log_set_callback(log_callback_help);
1881 topic = av_strdup(arg ? arg : "");
1883 return AVERROR(ENOMEM);
1884 par = strchr(topic, '=');
1889 show_help_default(topic, par);
1890 } else if (!strcmp(topic, "decoder")) {
1891 show_help_codec(par, 0);
1892 } else if (!strcmp(topic, "encoder")) {
1893 show_help_codec(par, 1);
1894 } else if (!strcmp(topic, "demuxer")) {
1895 show_help_demuxer(par);
1896 } else if (!strcmp(topic, "muxer")) {
1897 show_help_muxer(par);
1899 } else if (!strcmp(topic, "filter")) {
1900 show_help_filter(par);
1903 show_help_default(topic, par);
1910 int read_yesno(void)
1913 int yesno = (av_toupper(c) == 'Y');
1915 while (c != '\n' && c != EOF)
1921 FILE *get_preset_file(char *filename, size_t filename_size,
1922 const char *preset_name, int is_path,
1923 const char *codec_name)
1927 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1932 av_strlcpy(filename, preset_name, filename_size);
1933 f = fopen(filename, "r");
1936 char datadir[MAX_PATH], *ls;
1939 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1941 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1942 if (*ls == '\\') *ls = '/';
1944 if (ls = strrchr(datadir, '/'))
1947 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1952 for (i = 0; i < 3 && !f; i++) {
1955 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1956 i != 1 ? "" : "/.ffmpeg", preset_name);
1957 f = fopen(filename, "r");
1958 if (!f && codec_name) {
1959 snprintf(filename, filename_size,
1960 "%s%s/%s-%s.ffpreset",
1961 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1963 f = fopen(filename, "r");
1971 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1973 int ret = avformat_match_stream_specifier(s, st, spec);
1975 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1979 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1980 AVFormatContext *s, AVStream *st, AVCodec *codec)
1982 AVDictionary *ret = NULL;
1983 AVDictionaryEntry *t = NULL;
1984 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1985 : AV_OPT_FLAG_DECODING_PARAM;
1987 const AVClass *cc = avcodec_get_class();
1990 codec = s->oformat ? avcodec_find_encoder(codec_id)
1991 : avcodec_find_decoder(codec_id);
1993 switch (st->codec->codec_type) {
1994 case AVMEDIA_TYPE_VIDEO:
1996 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1998 case AVMEDIA_TYPE_AUDIO:
2000 flags |= AV_OPT_FLAG_AUDIO_PARAM;
2002 case AVMEDIA_TYPE_SUBTITLE:
2004 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
2008 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2009 char *p = strchr(t->key, ':');
2011 /* check stream specification in opt name */
2013 switch (check_stream_specifier(s, st, p + 1)) {
2014 case 1: *p = 0; break;
2016 default: exit_program(1);
2019 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2021 (codec->priv_class &&
2022 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2023 AV_OPT_SEARCH_FAKE_OBJ)))
2024 av_dict_set(&ret, t->key, t->value, 0);
2025 else if (t->key[0] == prefix &&
2026 av_opt_find(&cc, t->key + 1, NULL, flags,
2027 AV_OPT_SEARCH_FAKE_OBJ))
2028 av_dict_set(&ret, t->key + 1, t->value, 0);
2036 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2037 AVDictionary *codec_opts)
2040 AVDictionary **opts;
2044 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2046 av_log(NULL, AV_LOG_ERROR,
2047 "Could not alloc memory for stream options.\n");
2050 for (i = 0; i < s->nb_streams; i++)
2051 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
2052 s, s->streams[i], NULL);
2056 void *grow_array(void *array, int elem_size, int *size, int new_size)
2058 if (new_size >= INT_MAX / elem_size) {
2059 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2062 if (*size < new_size) {
2063 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2065 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2068 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2075 double get_rotation(AVStream *st)
2077 AVDictionaryEntry *rotate_tag = av_dict_get(st->metadata, "rotate", NULL, 0);
2078 uint8_t* displaymatrix = av_stream_get_side_data(st,
2079 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2082 if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
2084 theta = av_strtod(rotate_tag->value, &tail);
2088 if (displaymatrix && !theta)
2089 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2091 theta -= 360*floor(theta/360 + 0.9/360);
2093 if (fabs(theta - 90*round(theta/90)) > 2)
2094 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2095 "If you want to help, upload a sample "
2096 "of this file to ftp://upload.ffmpeg.org/incoming/ "
2097 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2103 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2106 AVDeviceInfoList *device_list = NULL;
2108 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2109 return AVERROR(EINVAL);
2111 printf("Audo-detected sources for %s:\n", fmt->name);
2112 if (!fmt->get_device_list) {
2113 ret = AVERROR(ENOSYS);
2114 printf("Cannot list sources. Not implemented.\n");
2118 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2119 printf("Cannot list sources.\n");
2123 for (i = 0; i < device_list->nb_devices; i++) {
2124 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2125 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2129 avdevice_free_list_devices(&device_list);
2133 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2136 AVDeviceInfoList *device_list = NULL;
2138 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2139 return AVERROR(EINVAL);
2141 printf("Audo-detected sinks for %s:\n", fmt->name);
2142 if (!fmt->get_device_list) {
2143 ret = AVERROR(ENOSYS);
2144 printf("Cannot list sinks. Not implemented.\n");
2148 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2149 printf("Cannot list sinks.\n");
2153 for (i = 0; i < device_list->nb_devices; i++) {
2154 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2155 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2159 avdevice_free_list_devices(&device_list);
2163 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2167 char *opts_str = NULL;
2168 av_assert0(dev && opts);
2169 *dev = av_strdup(arg);
2171 return AVERROR(ENOMEM);
2172 if ((opts_str = strchr(*dev, ','))) {
2173 *(opts_str++) = '\0';
2174 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2180 printf("\nDevice name is not provided.\n"
2181 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2185 int show_sources(void *optctx, const char *opt, const char *arg)
2187 AVInputFormat *fmt = NULL;
2189 AVDictionary *opts = NULL;
2191 int error_level = av_log_get_level();
2193 av_log_set_level(AV_LOG_ERROR);
2195 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2199 fmt = av_input_audio_device_next(fmt);
2201 if (!strcmp(fmt->name, "lavfi"))
2202 continue; //it's pointless to probe lavfi
2203 if (dev && !av_match_name(dev, fmt->name))
2205 print_device_sources(fmt, opts);
2209 fmt = av_input_video_device_next(fmt);
2211 if (dev && !av_match_name(dev, fmt->name))
2213 print_device_sources(fmt, opts);
2217 av_dict_free(&opts);
2219 av_log_set_level(error_level);
2223 int show_sinks(void *optctx, const char *opt, const char *arg)
2225 AVOutputFormat *fmt = NULL;
2227 AVDictionary *opts = NULL;
2229 int error_level = av_log_get_level();
2231 av_log_set_level(AV_LOG_ERROR);
2233 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2237 fmt = av_output_audio_device_next(fmt);
2239 if (dev && !av_match_name(dev, fmt->name))
2241 print_device_sinks(fmt, opts);
2245 fmt = av_output_video_device_next(fmt);
2247 if (dev && !av_match_name(dev, fmt->name))
2249 print_device_sinks(fmt, opts);
2253 av_dict_free(&opts);
2255 av_log_set_level(error_level);