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
27 /* Include only the enabled headers since some compilers (namely, Sun
28 Studio) will not omit unused inline functions and create undefined
29 references to libraries that are not being built. */
32 #include "compat/va_copy.h"
33 #include "libavformat/avformat.h"
34 #include "libavfilter/avfilter.h"
35 #include "libavdevice/avdevice.h"
36 #include "libavresample/avresample.h"
37 #include "libswscale/swscale.h"
38 #include "libswresample/swresample.h"
39 #include "libpostproc/postprocess.h"
40 #include "libavutil/avassert.h"
41 #include "libavutil/avstring.h"
42 #include "libavutil/bprint.h"
43 #include "libavutil/mathematics.h"
44 #include "libavutil/imgutils.h"
45 #include "libavutil/parseutils.h"
46 #include "libavutil/pixdesc.h"
47 #include "libavutil/eval.h"
48 #include "libavutil/dict.h"
49 #include "libavutil/opt.h"
53 #include "libavformat/network.h"
55 #if HAVE_SYS_RESOURCE_H
57 #include <sys/resource.h>
60 #include "libavutil/opencl.h"
64 static int init_report(const char *env);
66 struct SwsContext *sws_opts;
67 AVDictionary *swr_opts;
68 AVDictionary *format_opts, *codec_opts, *resample_opts;
70 const int this_year = 2013;
72 static FILE *report_file;
78 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
82 void uninit_opts(void)
85 sws_freeContext(sws_opts);
89 av_dict_free(&swr_opts);
90 av_dict_free(&format_opts);
91 av_dict_free(&codec_opts);
92 av_dict_free(&resample_opts);
95 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
97 vfprintf(stdout, fmt, vl);
100 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
104 static int print_prefix = 1;
107 av_log_default_callback(ptr, level, fmt, vl);
108 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
110 fputs(line, report_file);
114 static void (*program_exit)(int ret);
116 void register_exit(void (*cb)(int ret))
121 void exit_program(int ret)
129 double parse_number_or_die(const char *context, const char *numstr, int type,
130 double min, double max)
134 double d = av_strtod(numstr, &tail);
136 error = "Expected number for %s but found: %s\n";
137 else if (d < min || d > max)
138 error = "The value for %s was %s which is not within %f - %f\n";
139 else if (type == OPT_INT64 && (int64_t)d != d)
140 error = "Expected int64 for %s but found %s\n";
141 else if (type == OPT_INT && (int)d != d)
142 error = "Expected int for %s but found %s\n";
145 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
150 int64_t parse_time_or_die(const char *context, const char *timestr,
154 if (av_parse_time(&us, timestr, is_duration) < 0) {
155 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
156 is_duration ? "duration" : "date", context, timestr);
162 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
163 int rej_flags, int alt_flags)
169 for (po = options; po->name != NULL; po++) {
172 if (((po->flags & req_flags) != req_flags) ||
173 (alt_flags && !(po->flags & alt_flags)) ||
174 (po->flags & rej_flags))
181 av_strlcpy(buf, po->name, sizeof(buf));
183 av_strlcat(buf, " ", sizeof(buf));
184 av_strlcat(buf, po->argname, sizeof(buf));
186 printf("-%-17s %s\n", buf, po->help);
191 void show_help_children(const AVClass *class, int flags)
193 const AVClass *child = NULL;
195 av_opt_show2(&class, NULL, flags, 0);
199 while (child = av_opt_child_class_next(class, child))
200 show_help_children(child, flags);
203 static const OptionDef *find_option(const OptionDef *po, const char *name)
205 const char *p = strchr(name, ':');
206 int len = p ? p - name : strlen(name);
208 while (po->name != NULL) {
209 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
216 /* _WIN32 means using the windows libc - cygwin doesn't define that
217 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
218 * it doesn't provide the actual command line via GetCommandLineW(). */
219 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
221 #include <shellapi.h>
222 /* Will be leaked on exit */
223 static char** win32_argv_utf8 = NULL;
224 static int win32_argc = 0;
227 * Prepare command line arguments for executable.
228 * For Windows - perform wide-char to UTF-8 conversion.
229 * Input arguments should be main() function arguments.
230 * @param argc_ptr Arguments number (including executable)
231 * @param argv_ptr Arguments list.
233 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
237 int i, buffsize = 0, offset = 0;
239 if (win32_argv_utf8) {
240 *argc_ptr = win32_argc;
241 *argv_ptr = win32_argv_utf8;
246 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
247 if (win32_argc <= 0 || !argv_w)
250 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
251 for (i = 0; i < win32_argc; i++)
252 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
253 NULL, 0, NULL, NULL);
255 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
256 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
257 if (win32_argv_utf8 == NULL) {
262 for (i = 0; i < win32_argc; i++) {
263 win32_argv_utf8[i] = &argstr_flat[offset];
264 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
265 &argstr_flat[offset],
266 buffsize - offset, NULL, NULL);
268 win32_argv_utf8[i] = NULL;
271 *argc_ptr = win32_argc;
272 *argv_ptr = win32_argv_utf8;
275 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
279 #endif /* HAVE_COMMANDLINETOARGVW */
281 static int write_option(void *optctx, const OptionDef *po, const char *opt,
284 /* new-style options contain an offset into optctx, old-style address of
286 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
287 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
290 if (po->flags & OPT_SPEC) {
291 SpecifierOpt **so = dst;
292 char *p = strchr(opt, ':');
294 dstcount = (int *)(so + 1);
295 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
296 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
297 dst = &(*so)[*dstcount - 1].u;
300 if (po->flags & OPT_STRING) {
302 str = av_strdup(arg);
305 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
306 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
307 } else if (po->flags & OPT_INT64) {
308 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
309 } else if (po->flags & OPT_TIME) {
310 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
311 } else if (po->flags & OPT_FLOAT) {
312 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
313 } else if (po->flags & OPT_DOUBLE) {
314 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
315 } else if (po->u.func_arg) {
316 int ret = po->u.func_arg(optctx, opt, arg);
318 av_log(NULL, AV_LOG_ERROR,
319 "Failed to set value '%s' for option '%s': %s\n",
320 arg, opt, av_err2str(ret));
324 if (po->flags & OPT_EXIT)
330 int parse_option(void *optctx, const char *opt, const char *arg,
331 const OptionDef *options)
336 po = find_option(options, opt);
337 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
338 /* handle 'no' bool option */
339 po = find_option(options, opt + 2);
340 if ((po->name && (po->flags & OPT_BOOL)))
342 } else if (po->flags & OPT_BOOL)
346 po = find_option(options, "default");
348 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
349 return AVERROR(EINVAL);
351 if (po->flags & HAS_ARG && !arg) {
352 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
353 return AVERROR(EINVAL);
356 ret = write_option(optctx, po, opt, arg);
360 return !!(po->flags & HAS_ARG);
363 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
364 void (*parse_arg_function)(void *, const char*))
367 int optindex, handleoptions = 1, ret;
369 /* perform system-dependent conversions for arguments list */
370 prepare_app_arguments(&argc, &argv);
374 while (optindex < argc) {
375 opt = argv[optindex++];
377 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
378 if (opt[1] == '-' && opt[2] == '\0') {
384 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
388 if (parse_arg_function)
389 parse_arg_function(optctx, opt);
394 int parse_optgroup(void *optctx, OptionGroup *g)
398 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
399 g->group_def->name, g->arg);
401 for (i = 0; i < g->nb_opts; i++) {
402 Option *o = &g->opts[i];
404 if (g->group_def->flags &&
405 !(g->group_def->flags & o->opt->flags)) {
406 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
407 "%s %s -- you are trying to apply an input option to an "
408 "output file or vice versa. Move this option before the "
409 "file it belongs to.\n", o->key, o->opt->help,
410 g->group_def->name, g->arg);
411 return AVERROR(EINVAL);
414 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
415 o->key, o->opt->help, o->val);
417 ret = write_option(optctx, o->opt, o->key, o->val);
422 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
427 int locate_option(int argc, char **argv, const OptionDef *options,
433 for (i = 1; i < argc; i++) {
434 const char *cur_opt = argv[i];
436 if (*cur_opt++ != '-')
439 po = find_option(options, cur_opt);
440 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
441 po = find_option(options, cur_opt + 2);
443 if ((!po->name && !strcmp(cur_opt, optname)) ||
444 (po->name && !strcmp(optname, po->name)))
447 if (po->flags & HAS_ARG)
453 static void dump_argument(const char *a)
455 const unsigned char *p;
458 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
459 *p == '_' || (*p >= 'a' && *p <= 'z')))
462 fputs(a, report_file);
465 fputc('"', report_file);
466 for (p = a; *p; p++) {
467 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
468 fprintf(report_file, "\\%c", *p);
469 else if (*p < ' ' || *p > '~')
470 fprintf(report_file, "\\x%02x", *p);
472 fputc(*p, report_file);
474 fputc('"', report_file);
477 void parse_loglevel(int argc, char **argv, const OptionDef *options)
479 int idx = locate_option(argc, argv, options, "loglevel");
482 idx = locate_option(argc, argv, options, "v");
483 if (idx && argv[idx + 1])
484 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
485 idx = locate_option(argc, argv, options, "report");
486 if ((env = getenv("FFREPORT")) || idx) {
490 fprintf(report_file, "Command line:\n");
491 for (i = 0; i < argc; i++) {
492 dump_argument(argv[i]);
493 fputc(i < argc - 1 ? ' ' : '\n', report_file);
500 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
501 int opt_flags, int search_flags)
503 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
509 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
510 int opt_default(void *optctx, const char *opt, const char *arg)
514 char opt_stripped[128];
516 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
517 #if CONFIG_AVRESAMPLE
518 const AVClass *rc = avresample_get_class();
520 const AVClass *sc, *swr_class;
522 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
523 av_log_set_level(AV_LOG_DEBUG);
525 if (!(p = strchr(opt, ':')))
526 p = opt + strlen(opt);
527 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
529 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
530 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
531 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
532 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
533 av_dict_set(&codec_opts, opt, arg, FLAGS);
536 if ((o = opt_find(&fc, opt, NULL, 0,
537 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
538 av_dict_set(&format_opts, opt, arg, FLAGS);
540 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
544 sc = sws_get_class();
545 if (!consumed && opt_find(&sc, opt, NULL, 0,
546 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) {
547 // XXX we only support sws_flags, not arbitrary sws options
548 int ret = av_opt_set(sws_opts, opt, arg, 0);
550 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
556 #if CONFIG_SWRESAMPLE
557 swr_class = swr_get_class();
558 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
559 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
560 struct SwrContext *swr = swr_alloc();
561 int ret = av_opt_set(swr, opt, arg, 0);
564 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
567 av_dict_set(&swr_opts, opt, arg, FLAGS);
571 #if CONFIG_AVRESAMPLE
572 if ((o=opt_find(&rc, opt, NULL, 0,
573 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
574 av_dict_set(&resample_opts, opt, arg, FLAGS);
581 return AVERROR_OPTION_NOT_FOUND;
585 * Check whether given option is a group separator.
587 * @return index of the group definition that matched or -1 if none
589 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
594 for (i = 0; i < nb_groups; i++) {
595 const OptionGroupDef *p = &groups[i];
596 if (p->sep && !strcmp(p->sep, opt))
604 * Finish parsing an option group.
606 * @param group_idx which group definition should this group belong to
607 * @param arg argument of the group delimiting option
609 static void finish_group(OptionParseContext *octx, int group_idx,
612 OptionGroupList *l = &octx->groups[group_idx];
615 GROW_ARRAY(l->groups, l->nb_groups);
616 g = &l->groups[l->nb_groups - 1];
618 *g = octx->cur_group;
620 g->group_def = l->group_def;
622 g->sws_opts = sws_opts;
624 g->swr_opts = swr_opts;
625 g->codec_opts = codec_opts;
626 g->format_opts = format_opts;
627 g->resample_opts = resample_opts;
631 resample_opts = NULL;
638 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
642 * Add an option instance to currently parsed group.
644 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
645 const char *key, const char *val)
647 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
648 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
650 GROW_ARRAY(g->opts, g->nb_opts);
651 g->opts[g->nb_opts - 1].opt = opt;
652 g->opts[g->nb_opts - 1].key = key;
653 g->opts[g->nb_opts - 1].val = val;
656 static void init_parse_context(OptionParseContext *octx,
657 const OptionGroupDef *groups, int nb_groups)
659 static const OptionGroupDef global_group = { "global" };
662 memset(octx, 0, sizeof(*octx));
664 octx->nb_groups = nb_groups;
665 octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups);
669 for (i = 0; i < octx->nb_groups; i++)
670 octx->groups[i].group_def = &groups[i];
672 octx->global_opts.group_def = &global_group;
673 octx->global_opts.arg = "";
678 void uninit_parse_context(OptionParseContext *octx)
682 for (i = 0; i < octx->nb_groups; i++) {
683 OptionGroupList *l = &octx->groups[i];
685 for (j = 0; j < l->nb_groups; j++) {
686 av_freep(&l->groups[j].opts);
687 av_dict_free(&l->groups[j].codec_opts);
688 av_dict_free(&l->groups[j].format_opts);
689 av_dict_free(&l->groups[j].resample_opts);
691 sws_freeContext(l->groups[j].sws_opts);
693 av_dict_free(&l->groups[j].swr_opts);
695 av_freep(&l->groups);
697 av_freep(&octx->groups);
699 av_freep(&octx->cur_group.opts);
700 av_freep(&octx->global_opts.opts);
705 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
706 const OptionDef *options,
707 const OptionGroupDef *groups, int nb_groups)
712 /* perform system-dependent conversions for arguments list */
713 prepare_app_arguments(&argc, &argv);
715 init_parse_context(octx, groups, nb_groups);
716 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
718 while (optindex < argc) {
719 const char *opt = argv[optindex++], *arg;
723 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
725 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
729 /* unnamed group separators, e.g. output filename */
730 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
731 finish_group(octx, 0, opt);
732 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
737 #define GET_ARG(arg) \
739 arg = argv[optindex++]; \
741 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
742 return AVERROR(EINVAL); \
746 /* named group separators, e.g. -i */
747 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
749 finish_group(octx, ret, arg);
750 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
751 groups[ret].name, arg);
756 po = find_option(options, opt);
758 if (po->flags & OPT_EXIT) {
759 /* optional argument, e.g. -h */
760 arg = argv[optindex++];
761 } else if (po->flags & HAS_ARG) {
767 add_opt(octx, po, opt, arg);
768 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
769 "argument '%s'.\n", po->name, po->help, arg);
774 if (argv[optindex]) {
775 ret = opt_default(NULL, opt, argv[optindex]);
777 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
778 "argument '%s'.\n", opt, argv[optindex]);
781 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
782 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
783 "with argument '%s'.\n", opt, argv[optindex]);
788 /* boolean -nofoo options */
789 if (opt[0] == 'n' && opt[1] == 'o' &&
790 (po = find_option(options, opt + 2)) &&
791 po->name && po->flags & OPT_BOOL) {
792 add_opt(octx, po, opt, "0");
793 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
794 "argument 0.\n", po->name, po->help);
798 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
799 return AVERROR_OPTION_NOT_FOUND;
802 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
803 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
806 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
811 int opt_loglevel(void *optctx, const char *opt, const char *arg)
813 const struct { const char *name; int level; } log_levels[] = {
814 { "quiet" , AV_LOG_QUIET },
815 { "panic" , AV_LOG_PANIC },
816 { "fatal" , AV_LOG_FATAL },
817 { "error" , AV_LOG_ERROR },
818 { "warning", AV_LOG_WARNING },
819 { "info" , AV_LOG_INFO },
820 { "verbose", AV_LOG_VERBOSE },
821 { "debug" , AV_LOG_DEBUG },
827 tail = strstr(arg, "repeat");
828 av_log_set_flags(tail ? 0 : AV_LOG_SKIP_REPEATED);
830 arg += 6 + (arg[6]=='+');
834 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
835 if (!strcmp(log_levels[i].name, arg)) {
836 av_log_set_level(log_levels[i].level);
841 level = strtol(arg, &tail, 10);
843 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
844 "Possible levels are numbers or:\n", arg);
845 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
846 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
849 av_log_set_level(level);
853 static void expand_filename_template(AVBPrint *bp, const char *template,
858 while ((c = *(template++))) {
860 if (!(c = *(template++)))
864 av_bprintf(bp, "%s", program_name);
867 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
868 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
869 tm->tm_hour, tm->tm_min, tm->tm_sec);
872 av_bprint_chars(bp, c, 1);
876 av_bprint_chars(bp, c, 1);
881 static int init_report(const char *env)
883 char *filename_template = NULL;
890 if (report_file) /* already opened */
893 tm = localtime(&now);
895 while (env && *env) {
896 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
898 av_log(NULL, AV_LOG_ERROR,
899 "Failed to parse FFREPORT environment variable: %s\n",
906 if (!strcmp(key, "file")) {
907 av_free(filename_template);
908 filename_template = val;
911 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
917 av_bprint_init(&filename, 0, 1);
918 expand_filename_template(&filename,
919 av_x_if_null(filename_template, "%p-%t.log"), tm);
920 av_free(filename_template);
921 if (!av_bprint_is_complete(&filename)) {
922 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
923 return AVERROR(ENOMEM);
926 report_file = fopen(filename.str, "w");
928 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
929 filename.str, strerror(errno));
930 return AVERROR(errno);
932 av_log_set_callback(log_callback_report);
933 av_log(NULL, AV_LOG_INFO,
934 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
935 "Report written to \"%s\"\n",
937 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
938 tm->tm_hour, tm->tm_min, tm->tm_sec,
940 av_bprint_finalize(&filename, NULL);
944 int opt_report(const char *opt)
946 return init_report(NULL);
949 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
954 max = strtol(arg, &tail, 10);
956 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
963 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
966 unsigned flags = av_get_cpu_flags();
968 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
971 av_force_cpu_flags(flags);
975 int opt_timelimit(void *optctx, const char *opt, const char *arg)
978 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
979 struct rlimit rl = { lim, lim + 1 };
980 if (setrlimit(RLIMIT_CPU, &rl))
983 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
989 int opt_opencl(void *optctx, const char *opt, const char *arg)
992 const char *opts = arg;
995 ret = av_opt_get_key_value(&opts, "=", ":", 0, &key, &value);
998 ret = av_opencl_set_option(key, value);
1008 void print_error(const char *filename, int err)
1011 const char *errbuf_ptr = errbuf;
1013 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1014 errbuf_ptr = strerror(AVUNERROR(err));
1015 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1018 static int warned_cfg = 0;
1021 #define SHOW_VERSION 2
1022 #define SHOW_CONFIG 4
1023 #define SHOW_COPYRIGHT 8
1025 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1026 if (CONFIG_##LIBNAME) { \
1027 const char *indent = flags & INDENT? " " : ""; \
1028 if (flags & SHOW_VERSION) { \
1029 unsigned int version = libname##_version(); \
1030 av_log(NULL, level, \
1031 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1033 LIB##LIBNAME##_VERSION_MAJOR, \
1034 LIB##LIBNAME##_VERSION_MINOR, \
1035 LIB##LIBNAME##_VERSION_MICRO, \
1036 version >> 16, version >> 8 & 0xff, version & 0xff); \
1038 if (flags & SHOW_CONFIG) { \
1039 const char *cfg = libname##_configuration(); \
1040 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1041 if (!warned_cfg) { \
1042 av_log(NULL, level, \
1043 "%sWARNING: library configuration mismatch\n", \
1047 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1048 indent, #libname, cfg); \
1053 static void print_all_libs_info(int flags, int level)
1055 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1056 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1057 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1058 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1059 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1060 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1061 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1062 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
1063 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1066 static void print_program_info(int flags, int level)
1068 const char *indent = flags & INDENT? " " : "";
1070 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1071 if (flags & SHOW_COPYRIGHT)
1072 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1073 program_birth_year, this_year);
1074 av_log(NULL, level, "\n");
1075 av_log(NULL, level, "%sbuilt on %s %s with %s\n",
1076 indent, __DATE__, __TIME__, CC_IDENT);
1078 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1081 void show_banner(int argc, char **argv, const OptionDef *options)
1083 int idx = locate_option(argc, argv, options, "version");
1087 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1088 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1089 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1092 int show_version(void *optctx, const char *opt, const char *arg)
1094 av_log_set_callback(log_callback_help);
1095 print_program_info (0 , AV_LOG_INFO);
1096 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1101 int show_license(void *optctx, const char *opt, const char *arg)
1105 "This version of %s has nonfree parts compiled in.\n"
1106 "Therefore it is not legally redistributable.\n",
1110 "%s is free software; you can redistribute it and/or modify\n"
1111 "it under the terms of the GNU General Public License as published by\n"
1112 "the Free Software Foundation; either version 3 of the License, or\n"
1113 "(at your option) any later version.\n"
1115 "%s is distributed in the hope that it will be useful,\n"
1116 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1117 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1118 "GNU General Public License for more details.\n"
1120 "You should have received a copy of the GNU General Public License\n"
1121 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1122 program_name, program_name, program_name );
1125 "%s is free software; you can redistribute it and/or modify\n"
1126 "it under the terms of the GNU General Public License as published by\n"
1127 "the Free Software Foundation; either version 2 of the License, or\n"
1128 "(at your option) any later version.\n"
1130 "%s is distributed in the hope that it will be useful,\n"
1131 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1132 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1133 "GNU General Public License for more details.\n"
1135 "You should have received a copy of the GNU General Public License\n"
1136 "along with %s; if not, write to the Free Software\n"
1137 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1138 program_name, program_name, program_name );
1141 "%s is free software; you can redistribute it and/or modify\n"
1142 "it under the terms of the GNU Lesser General Public License as published by\n"
1143 "the Free Software Foundation; either version 3 of the License, or\n"
1144 "(at your option) any later version.\n"
1146 "%s is distributed in the hope that it will be useful,\n"
1147 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1148 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1149 "GNU Lesser General Public License for more details.\n"
1151 "You should have received a copy of the GNU Lesser General Public License\n"
1152 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1153 program_name, program_name, program_name );
1156 "%s is free software; you can redistribute it and/or\n"
1157 "modify it under the terms of the GNU Lesser General Public\n"
1158 "License as published by the Free Software Foundation; either\n"
1159 "version 2.1 of the License, or (at your option) any later version.\n"
1161 "%s is distributed in the hope that it will be useful,\n"
1162 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1163 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1164 "Lesser General Public License for more details.\n"
1166 "You should have received a copy of the GNU Lesser General Public\n"
1167 "License along with %s; if not, write to the Free Software\n"
1168 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1169 program_name, program_name, program_name );
1175 int show_formats(void *optctx, const char *opt, const char *arg)
1177 AVInputFormat *ifmt = NULL;
1178 AVOutputFormat *ofmt = NULL;
1179 const char *last_name;
1181 printf("File formats:\n"
1182 " D. = Demuxing supported\n"
1183 " .E = Muxing supported\n"
1189 const char *name = NULL;
1190 const char *long_name = NULL;
1192 while ((ofmt = av_oformat_next(ofmt))) {
1193 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
1194 strcmp(ofmt->name, last_name) > 0) {
1196 long_name = ofmt->long_name;
1200 while ((ifmt = av_iformat_next(ifmt))) {
1201 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
1202 strcmp(ifmt->name, last_name) > 0) {
1204 long_name = ifmt->long_name;
1207 if (name && strcmp(ifmt->name, name) == 0)
1214 printf(" %s%s %-15s %s\n",
1218 long_name ? long_name:" ");
1223 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1224 if (codec->field) { \
1225 const type *p = codec->field; \
1227 printf(" Supported " list_name ":"); \
1228 while (*p != term) { \
1230 printf(" %s", name); \
1236 static void print_codec(const AVCodec *c)
1238 int encoder = av_codec_is_encoder(c);
1240 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1241 c->long_name ? c->long_name : "");
1243 if (c->type == AVMEDIA_TYPE_VIDEO ||
1244 c->type == AVMEDIA_TYPE_AUDIO) {
1245 printf(" Threading capabilities: ");
1246 switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
1247 CODEC_CAP_SLICE_THREADS)) {
1248 case CODEC_CAP_FRAME_THREADS |
1249 CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1250 case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1251 case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1252 default: printf("no"); break;
1257 if (c->supported_framerates) {
1258 const AVRational *fps = c->supported_framerates;
1260 printf(" Supported framerates:");
1262 printf(" %d/%d", fps->num, fps->den);
1267 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1268 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1269 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1270 GET_SAMPLE_RATE_NAME);
1271 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1272 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1273 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1274 0, GET_CH_LAYOUT_DESC);
1276 if (c->priv_class) {
1277 show_help_children(c->priv_class,
1278 AV_OPT_FLAG_ENCODING_PARAM |
1279 AV_OPT_FLAG_DECODING_PARAM);
1283 static char get_media_type_char(enum AVMediaType type)
1286 case AVMEDIA_TYPE_VIDEO: return 'V';
1287 case AVMEDIA_TYPE_AUDIO: return 'A';
1288 case AVMEDIA_TYPE_DATA: return 'D';
1289 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1290 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1291 default: return '?';
1295 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1298 while ((prev = av_codec_next(prev))) {
1299 if (prev->id == id &&
1300 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1306 static int compare_codec_desc(const void *a, const void *b)
1308 const AVCodecDescriptor * const *da = a;
1309 const AVCodecDescriptor * const *db = b;
1311 return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
1312 strcmp((*da)->name, (*db)->name);
1315 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1317 const AVCodecDescriptor *desc = NULL;
1318 const AVCodecDescriptor **codecs;
1319 unsigned nb_codecs = 0, i = 0;
1321 while ((desc = avcodec_descriptor_next(desc)))
1323 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1324 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1328 while ((desc = avcodec_descriptor_next(desc)))
1330 av_assert0(i == nb_codecs);
1331 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1336 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1338 const AVCodec *codec = NULL;
1340 printf(" (%s: ", encoder ? "encoders" : "decoders");
1342 while ((codec = next_codec_for_id(id, codec, encoder)))
1343 printf("%s ", codec->name);
1348 int show_codecs(void *optctx, const char *opt, const char *arg)
1350 const AVCodecDescriptor **codecs;
1351 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1354 " D..... = Decoding supported\n"
1355 " .E.... = Encoding supported\n"
1356 " ..V... = Video codec\n"
1357 " ..A... = Audio codec\n"
1358 " ..S... = Subtitle codec\n"
1359 " ...I.. = Intra frame-only codec\n"
1360 " ....L. = Lossy compression\n"
1361 " .....S = Lossless compression\n"
1363 for (i = 0; i < nb_codecs; i++) {
1364 const AVCodecDescriptor *desc = codecs[i];
1365 const AVCodec *codec = NULL;
1368 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1369 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1371 printf("%c", get_media_type_char(desc->type));
1372 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1373 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1374 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1376 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1378 /* print decoders/encoders when there's more than one or their
1379 * names are different from codec name */
1380 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1381 if (strcmp(codec->name, desc->name)) {
1382 print_codecs_for_id(desc->id, 0);
1387 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1388 if (strcmp(codec->name, desc->name)) {
1389 print_codecs_for_id(desc->id, 1);
1400 static void print_codecs(int encoder)
1402 const AVCodecDescriptor **codecs;
1403 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1408 " S..... = Subtitle\n"
1409 " .F.... = Frame-level multithreading\n"
1410 " ..S... = Slice-level multithreading\n"
1411 " ...X.. = Codec is experimental\n"
1412 " ....B. = Supports draw_horiz_band\n"
1413 " .....D = Supports direct rendering method 1\n"
1415 encoder ? "Encoders" : "Decoders");
1416 for (i = 0; i < nb_codecs; i++) {
1417 const AVCodecDescriptor *desc = codecs[i];
1418 const AVCodec *codec = NULL;
1420 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1421 printf(" %c", get_media_type_char(desc->type));
1422 printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1423 printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1424 printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1425 printf((codec->capabilities & CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1426 printf((codec->capabilities & CODEC_CAP_DR1) ? "D" : ".");
1428 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1429 if (strcmp(codec->name, desc->name))
1430 printf(" (codec %s)", desc->name);
1438 int show_decoders(void *optctx, const char *opt, const char *arg)
1444 int show_encoders(void *optctx, const char *opt, const char *arg)
1450 int show_bsfs(void *optctx, const char *opt, const char *arg)
1452 AVBitStreamFilter *bsf = NULL;
1454 printf("Bitstream filters:\n");
1455 while ((bsf = av_bitstream_filter_next(bsf)))
1456 printf("%s\n", bsf->name);
1461 int show_protocols(void *optctx, const char *opt, const char *arg)
1463 void *opaque = NULL;
1466 printf("Supported file protocols:\n"
1468 while ((name = avio_enum_protocols(&opaque, 0)))
1469 printf("%s\n", name);
1470 printf("Output:\n");
1471 while ((name = avio_enum_protocols(&opaque, 1)))
1472 printf("%s\n", name);
1476 int show_filters(void *optctx, const char *opt, const char *arg)
1478 const AVFilter av_unused(*filter) = NULL;
1479 char descr[64], *descr_cur;
1481 const AVFilterPad *pad;
1484 " T. = Timeline support\n"
1485 " .S = Slice threading\n"
1486 " A = Audio input/output\n"
1487 " V = Video input/output\n"
1488 " N = Dynamic number and/or type of input/output\n"
1489 " | = Source or sink filter\n");
1491 while ((filter = avfilter_next(filter))) {
1493 for (i = 0; i < 2; i++) {
1495 *(descr_cur++) = '-';
1496 *(descr_cur++) = '>';
1498 pad = i ? filter->outputs : filter->inputs;
1499 for (j = 0; pad && pad[j].name; j++) {
1500 if (descr_cur >= descr + sizeof(descr) - 4)
1502 *(descr_cur++) = get_media_type_char(pad[j].type);
1505 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1506 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1509 printf(" %c%c %-16s %-10s %s\n",
1510 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1511 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1512 filter->name, descr, filter->description);
1518 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1520 const AVPixFmtDescriptor *pix_desc = NULL;
1522 printf("Pixel formats:\n"
1523 "I.... = Supported Input format for conversion\n"
1524 ".O... = Supported Output format for conversion\n"
1525 "..H.. = Hardware accelerated format\n"
1526 "...P. = Paletted format\n"
1527 "....B = Bitstream format\n"
1528 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1532 # define sws_isSupportedInput(x) 0
1533 # define sws_isSupportedOutput(x) 0
1536 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1537 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1538 printf("%c%c%c%c%c %-16s %d %2d\n",
1539 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1540 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1541 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1542 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1543 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1545 pix_desc->nb_components,
1546 av_get_bits_per_pixel(pix_desc));
1551 int show_layouts(void *optctx, const char *opt, const char *arg)
1555 const char *name, *descr;
1557 printf("Individual channels:\n"
1558 "NAME DESCRIPTION\n");
1559 for (i = 0; i < 63; i++) {
1560 name = av_get_channel_name((uint64_t)1 << i);
1563 descr = av_get_channel_description((uint64_t)1 << i);
1564 printf("%-12s%s\n", name, descr);
1566 printf("\nStandard channel layouts:\n"
1567 "NAME DECOMPOSITION\n");
1568 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1570 printf("%-12s", name);
1571 for (j = 1; j; j <<= 1)
1573 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1580 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1584 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1585 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1589 static void show_help_codec(const char *name, int encoder)
1591 const AVCodecDescriptor *desc;
1592 const AVCodec *codec;
1595 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1599 codec = encoder ? avcodec_find_encoder_by_name(name) :
1600 avcodec_find_decoder_by_name(name);
1604 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1607 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1613 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1614 "but no %s for it are available. FFmpeg might need to be "
1615 "recompiled with additional external libraries.\n",
1616 name, encoder ? "encoders" : "decoders");
1619 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1624 static void show_help_demuxer(const char *name)
1626 const AVInputFormat *fmt = av_find_input_format(name);
1629 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1633 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1635 if (fmt->extensions)
1636 printf(" Common extensions: %s.\n", fmt->extensions);
1638 if (fmt->priv_class)
1639 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1642 static void show_help_muxer(const char *name)
1644 const AVCodecDescriptor *desc;
1645 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1648 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1652 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1654 if (fmt->extensions)
1655 printf(" Common extensions: %s.\n", fmt->extensions);
1657 printf(" Mime type: %s.\n", fmt->mime_type);
1658 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1659 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1660 printf(" Default video codec: %s.\n", desc->name);
1662 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1663 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1664 printf(" Default audio codec: %s.\n", desc->name);
1666 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1667 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1668 printf(" Default subtitle codec: %s.\n", desc->name);
1671 if (fmt->priv_class)
1672 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1676 static void show_help_filter(const char *name)
1679 const AVFilter *f = avfilter_get_by_name(name);
1683 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1686 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1690 printf("Filter %s\n", f->name);
1692 printf(" %s\n", f->description);
1694 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1695 printf(" slice threading supported\n");
1697 printf(" Inputs:\n");
1698 count = avfilter_pad_count(f->inputs);
1699 for (i = 0; i < count; i++) {
1700 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1701 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1703 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1704 printf(" dynamic (depending on the options)\n");
1706 printf(" none (source filter)\n");
1708 printf(" Outputs:\n");
1709 count = avfilter_pad_count(f->outputs);
1710 for (i = 0; i < count; i++) {
1711 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1712 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1714 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1715 printf(" dynamic (depending on the options)\n");
1717 printf(" none (sink filter)\n");
1720 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1721 AV_OPT_FLAG_AUDIO_PARAM);
1722 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1723 printf("This filter has support for timeline through the 'enable' option.\n");
1725 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1726 "can not to satisfy request\n");
1731 int show_help(void *optctx, const char *opt, const char *arg)
1734 av_log_set_callback(log_callback_help);
1736 topic = av_strdup(arg ? arg : "");
1737 par = strchr(topic, '=');
1742 show_help_default(topic, par);
1743 } else if (!strcmp(topic, "decoder")) {
1744 show_help_codec(par, 0);
1745 } else if (!strcmp(topic, "encoder")) {
1746 show_help_codec(par, 1);
1747 } else if (!strcmp(topic, "demuxer")) {
1748 show_help_demuxer(par);
1749 } else if (!strcmp(topic, "muxer")) {
1750 show_help_muxer(par);
1752 } else if (!strcmp(topic, "filter")) {
1753 show_help_filter(par);
1756 show_help_default(topic, par);
1763 int read_yesno(void)
1766 int yesno = (av_toupper(c) == 'Y');
1768 while (c != '\n' && c != EOF)
1774 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
1777 FILE *f = fopen(filename, "rb");
1780 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
1782 return AVERROR(errno);
1784 fseek(f, 0, SEEK_END);
1786 fseek(f, 0, SEEK_SET);
1787 if (*size == (size_t)-1) {
1788 av_log(NULL, AV_LOG_ERROR, "IO error: %s\n", strerror(errno));
1790 return AVERROR(errno);
1792 *bufptr = av_malloc(*size + 1);
1794 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
1796 return AVERROR(ENOMEM);
1798 ret = fread(*bufptr, 1, *size, f);
1802 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
1803 filename, strerror(errno));
1804 ret = AVERROR(errno);
1809 (*bufptr)[(*size)++] = '\0';
1816 FILE *get_preset_file(char *filename, size_t filename_size,
1817 const char *preset_name, int is_path,
1818 const char *codec_name)
1822 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1827 av_strlcpy(filename, preset_name, filename_size);
1828 f = fopen(filename, "r");
1831 char datadir[MAX_PATH], *ls;
1834 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1836 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1837 if (*ls == '\\') *ls = '/';
1839 if (ls = strrchr(datadir, '/'))
1842 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1847 for (i = 0; i < 3 && !f; i++) {
1850 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1851 i != 1 ? "" : "/.ffmpeg", preset_name);
1852 f = fopen(filename, "r");
1853 if (!f && codec_name) {
1854 snprintf(filename, filename_size,
1855 "%s%s/%s-%s.ffpreset",
1856 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1858 f = fopen(filename, "r");
1866 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1868 int ret = avformat_match_stream_specifier(s, st, spec);
1870 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1874 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1875 AVFormatContext *s, AVStream *st, AVCodec *codec)
1877 AVDictionary *ret = NULL;
1878 AVDictionaryEntry *t = NULL;
1879 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1880 : AV_OPT_FLAG_DECODING_PARAM;
1882 const AVClass *cc = avcodec_get_class();
1885 codec = s->oformat ? avcodec_find_encoder(codec_id)
1886 : avcodec_find_decoder(codec_id);
1888 switch (st->codec->codec_type) {
1889 case AVMEDIA_TYPE_VIDEO:
1891 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1893 case AVMEDIA_TYPE_AUDIO:
1895 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1897 case AVMEDIA_TYPE_SUBTITLE:
1899 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1903 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1904 char *p = strchr(t->key, ':');
1906 /* check stream specification in opt name */
1908 switch (check_stream_specifier(s, st, p + 1)) {
1909 case 1: *p = 0; break;
1911 default: return NULL;
1914 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1915 (codec && codec->priv_class &&
1916 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1917 AV_OPT_SEARCH_FAKE_OBJ)))
1918 av_dict_set(&ret, t->key, t->value, 0);
1919 else if (t->key[0] == prefix &&
1920 av_opt_find(&cc, t->key + 1, NULL, flags,
1921 AV_OPT_SEARCH_FAKE_OBJ))
1922 av_dict_set(&ret, t->key + 1, t->value, 0);
1930 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1931 AVDictionary *codec_opts)
1934 AVDictionary **opts;
1938 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1940 av_log(NULL, AV_LOG_ERROR,
1941 "Could not alloc memory for stream options.\n");
1944 for (i = 0; i < s->nb_streams; i++)
1945 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1946 s, s->streams[i], NULL);
1950 void *grow_array(void *array, int elem_size, int *size, int new_size)
1952 if (new_size >= INT_MAX / elem_size) {
1953 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1956 if (*size < new_size) {
1957 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1959 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1962 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);