2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; 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 "libavformat/avformat.h"
33 #include "libavfilter/avfilter.h"
34 #include "libavdevice/avdevice.h"
35 #include "libavresample/avresample.h"
36 #include "libswscale/swscale.h"
37 #include "libavutil/avassert.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/imgutils.h"
41 #include "libavutil/parseutils.h"
42 #include "libavutil/pixdesc.h"
43 #include "libavutil/eval.h"
44 #include "libavutil/dict.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/cpu.h"
50 #include "libavformat/network.h"
52 #if HAVE_SYS_RESOURCE_H
54 #include <sys/resource.h>
57 struct SwsContext *sws_opts;
58 AVDictionary *format_opts, *codec_opts, *resample_opts;
60 static const int this_year = 2013;
65 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
70 void uninit_opts(void)
73 sws_freeContext(sws_opts);
76 av_dict_free(&format_opts);
77 av_dict_free(&codec_opts);
78 av_dict_free(&resample_opts);
81 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
83 vfprintf(stdout, fmt, vl);
86 static void (*program_exit)(int ret);
88 void register_exit(void (*cb)(int ret))
93 void exit_program(int ret)
101 double parse_number_or_die(const char *context, const char *numstr, int type,
102 double min, double max)
106 double d = av_strtod(numstr, &tail);
108 error = "Expected number for %s but found: %s\n";
109 else if (d < min || d > max)
110 error = "The value for %s was %s which is not within %f - %f\n";
111 else if (type == OPT_INT64 && (int64_t)d != d)
112 error = "Expected int64 for %s but found %s\n";
113 else if (type == OPT_INT && (int)d != d)
114 error = "Expected int for %s but found %s\n";
117 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
122 int64_t parse_time_or_die(const char *context, const char *timestr,
126 if (av_parse_time(&us, timestr, is_duration) < 0) {
127 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
128 is_duration ? "duration" : "date", context, timestr);
134 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
135 int rej_flags, int alt_flags)
141 for (po = options; po->name != NULL; po++) {
144 if (((po->flags & req_flags) != req_flags) ||
145 (alt_flags && !(po->flags & alt_flags)) ||
146 (po->flags & rej_flags))
153 av_strlcpy(buf, po->name, sizeof(buf));
155 av_strlcat(buf, " ", sizeof(buf));
156 av_strlcat(buf, po->argname, sizeof(buf));
158 printf("-%-17s %s\n", buf, po->help);
163 void show_help_children(const AVClass *class, int flags)
165 const AVClass *child = NULL;
166 av_opt_show2(&class, NULL, flags, 0);
169 while (child = av_opt_child_class_next(class, child))
170 show_help_children(child, flags);
173 static const OptionDef *find_option(const OptionDef *po, const char *name)
175 const char *p = strchr(name, ':');
176 int len = p ? p - name : strlen(name);
178 while (po->name != NULL) {
179 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
186 /* _WIN32 means using the windows libc - cygwin doesn't define that
187 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
188 * it doesn't provide the actual command line via GetCommandLineW(). */
189 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
191 #include <shellapi.h>
192 /* Will be leaked on exit */
193 static char** win32_argv_utf8 = NULL;
194 static int win32_argc = 0;
197 * Prepare command line arguments for executable.
198 * For Windows - perform wide-char to UTF-8 conversion.
199 * Input arguments should be main() function arguments.
200 * @param argc_ptr Arguments number (including executable)
201 * @param argv_ptr Arguments list.
203 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
207 int i, buffsize = 0, offset = 0;
209 if (win32_argv_utf8) {
210 *argc_ptr = win32_argc;
211 *argv_ptr = win32_argv_utf8;
216 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
217 if (win32_argc <= 0 || !argv_w)
220 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
221 for (i = 0; i < win32_argc; i++)
222 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
223 NULL, 0, NULL, NULL);
225 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
226 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
227 if (win32_argv_utf8 == NULL) {
232 for (i = 0; i < win32_argc; i++) {
233 win32_argv_utf8[i] = &argstr_flat[offset];
234 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
235 &argstr_flat[offset],
236 buffsize - offset, NULL, NULL);
238 win32_argv_utf8[i] = NULL;
241 *argc_ptr = win32_argc;
242 *argv_ptr = win32_argv_utf8;
245 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
249 #endif /* HAVE_COMMANDLINETOARGVW */
251 static int write_option(void *optctx, const OptionDef *po, const char *opt,
254 /* new-style options contain an offset into optctx, old-style address of
256 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
257 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
260 if (po->flags & OPT_SPEC) {
261 SpecifierOpt **so = dst;
262 char *p = strchr(opt, ':');
264 dstcount = (int *)(so + 1);
265 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
266 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
267 dst = &(*so)[*dstcount - 1].u;
270 if (po->flags & OPT_STRING) {
272 str = av_strdup(arg);
275 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
276 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
277 } else if (po->flags & OPT_INT64) {
278 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
279 } else if (po->flags & OPT_TIME) {
280 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
281 } else if (po->flags & OPT_FLOAT) {
282 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
283 } else if (po->flags & OPT_DOUBLE) {
284 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
285 } else if (po->u.func_arg) {
286 int ret = po->u.func_arg(optctx, opt, arg);
288 av_log(NULL, AV_LOG_ERROR,
289 "Failed to set value '%s' for option '%s'\n", arg, opt);
293 if (po->flags & OPT_EXIT)
299 int parse_option(void *optctx, const char *opt, const char *arg,
300 const OptionDef *options)
305 po = find_option(options, opt);
306 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
307 /* handle 'no' bool option */
308 po = find_option(options, opt + 2);
309 if ((po->name && (po->flags & OPT_BOOL)))
311 } else if (po->flags & OPT_BOOL)
315 po = find_option(options, "default");
317 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
318 return AVERROR(EINVAL);
320 if (po->flags & HAS_ARG && !arg) {
321 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
322 return AVERROR(EINVAL);
325 ret = write_option(optctx, po, opt, arg);
329 return !!(po->flags & HAS_ARG);
332 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
333 void (*parse_arg_function)(void *, const char*))
336 int optindex, handleoptions = 1, ret;
338 /* perform system-dependent conversions for arguments list */
339 prepare_app_arguments(&argc, &argv);
343 while (optindex < argc) {
344 opt = argv[optindex++];
346 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
347 if (opt[1] == '-' && opt[2] == '\0') {
353 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
357 if (parse_arg_function)
358 parse_arg_function(optctx, opt);
363 int parse_optgroup(void *optctx, OptionGroup *g)
367 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
368 g->group_def->name, g->arg);
370 for (i = 0; i < g->nb_opts; i++) {
371 Option *o = &g->opts[i];
373 if (g->group_def->flags &&
374 !(g->group_def->flags & o->opt->flags)) {
375 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
376 "%s %s -- you are trying to apply an input option to an "
377 "output file or vice versa. Move this option before the "
378 "file it belongs to.\n", o->key, o->opt->help,
379 g->group_def->name, g->arg);
380 return AVERROR(EINVAL);
383 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
384 o->key, o->opt->help, o->val);
386 ret = write_option(optctx, o->opt, o->key, o->val);
391 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
396 int locate_option(int argc, char **argv, const OptionDef *options,
402 for (i = 1; i < argc; i++) {
403 const char *cur_opt = argv[i];
405 if (*cur_opt++ != '-')
408 po = find_option(options, cur_opt);
409 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
410 po = find_option(options, cur_opt + 2);
412 if ((!po->name && !strcmp(cur_opt, optname)) ||
413 (po->name && !strcmp(optname, po->name)))
416 if (!po || po->flags & HAS_ARG)
422 void parse_loglevel(int argc, char **argv, const OptionDef *options)
424 int idx = locate_option(argc, argv, options, "loglevel");
426 idx = locate_option(argc, argv, options, "v");
427 if (idx && argv[idx + 1])
428 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
431 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
432 int opt_default(void *optctx, const char *opt, const char *arg)
435 char opt_stripped[128];
437 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
438 #if CONFIG_AVRESAMPLE
439 const AVClass *rc = avresample_get_class();
442 const AVClass *sc = sws_get_class();
445 if (!(p = strchr(opt, ':')))
446 p = opt + strlen(opt);
447 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
449 if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
450 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
451 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
452 (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
453 av_dict_set(&codec_opts, opt, arg, FLAGS);
454 else if ((o = av_opt_find(&fc, opt, NULL, 0,
455 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
456 av_dict_set(&format_opts, opt, arg, FLAGS);
457 #if CONFIG_AVRESAMPLE
458 else if ((o = av_opt_find(&rc, opt, NULL, 0,
459 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
460 av_dict_set(&resample_opts, opt, arg, FLAGS);
463 else if ((o = av_opt_find(&sc, opt, NULL, 0,
464 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
465 // XXX we only support sws_flags, not arbitrary sws options
466 int ret = av_opt_set(sws_opts, opt, arg, 0);
468 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
476 return AVERROR_OPTION_NOT_FOUND;
480 * Check whether given option is a group separator.
482 * @return index of the group definition that matched or -1 if none
484 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
489 for (i = 0; i < nb_groups; i++) {
490 const OptionGroupDef *p = &groups[i];
491 if (p->sep && !strcmp(p->sep, opt))
499 * Finish parsing an option group.
501 * @param group_idx which group definition should this group belong to
502 * @param arg argument of the group delimiting option
504 static void finish_group(OptionParseContext *octx, int group_idx,
507 OptionGroupList *l = &octx->groups[group_idx];
510 GROW_ARRAY(l->groups, l->nb_groups);
511 g = &l->groups[l->nb_groups - 1];
513 *g = octx->cur_group;
515 g->group_def = l->group_def;
517 g->sws_opts = sws_opts;
519 g->codec_opts = codec_opts;
520 g->format_opts = format_opts;
521 g->resample_opts = resample_opts;
525 resample_opts = NULL;
531 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
535 * Add an option instance to currently parsed group.
537 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
538 const char *key, const char *val)
540 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
541 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
543 GROW_ARRAY(g->opts, g->nb_opts);
544 g->opts[g->nb_opts - 1].opt = opt;
545 g->opts[g->nb_opts - 1].key = key;
546 g->opts[g->nb_opts - 1].val = val;
549 static void init_parse_context(OptionParseContext *octx,
550 const OptionGroupDef *groups, int nb_groups)
552 static const OptionGroupDef global_group = { "global" };
555 memset(octx, 0, sizeof(*octx));
557 octx->nb_groups = nb_groups;
558 octx->groups = av_mallocz(sizeof(*octx->groups) * octx->nb_groups);
562 for (i = 0; i < octx->nb_groups; i++)
563 octx->groups[i].group_def = &groups[i];
565 octx->global_opts.group_def = &global_group;
566 octx->global_opts.arg = "";
571 void uninit_parse_context(OptionParseContext *octx)
575 for (i = 0; i < octx->nb_groups; i++) {
576 OptionGroupList *l = &octx->groups[i];
578 for (j = 0; j < l->nb_groups; j++) {
579 av_freep(&l->groups[j].opts);
580 av_dict_free(&l->groups[j].codec_opts);
581 av_dict_free(&l->groups[j].format_opts);
582 av_dict_free(&l->groups[j].resample_opts);
584 sws_freeContext(l->groups[j].sws_opts);
587 av_freep(&l->groups);
589 av_freep(&octx->groups);
591 av_freep(&octx->cur_group.opts);
592 av_freep(&octx->global_opts.opts);
597 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
598 const OptionDef *options,
599 const OptionGroupDef *groups, int nb_groups)
603 /* perform system-dependent conversions for arguments list */
604 prepare_app_arguments(&argc, &argv);
606 init_parse_context(octx, groups, nb_groups);
607 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
609 while (optindex < argc) {
610 const char *opt = argv[optindex++], *arg;
614 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
616 /* unnamed group separators, e.g. output filename */
617 if (opt[0] != '-' || !opt[1]) {
618 finish_group(octx, 0, opt);
619 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
624 #define GET_ARG(arg) \
626 arg = argv[optindex++]; \
628 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
629 return AVERROR(EINVAL); \
633 /* named group separators, e.g. -i */
634 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
636 finish_group(octx, ret, arg);
637 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
638 groups[ret].name, arg);
643 po = find_option(options, opt);
645 if (po->flags & OPT_EXIT) {
646 /* optional argument, e.g. -h */
647 arg = argv[optindex++];
648 } else if (po->flags & HAS_ARG) {
654 add_opt(octx, po, opt, arg);
655 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
656 "argument '%s'.\n", po->name, po->help, arg);
661 if (argv[optindex]) {
662 ret = opt_default(NULL, opt, argv[optindex]);
664 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
665 "argument '%s'.\n", opt, argv[optindex]);
668 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
669 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
670 "with argument '%s'.\n", opt, argv[optindex]);
675 /* boolean -nofoo options */
676 if (opt[0] == 'n' && opt[1] == 'o' &&
677 (po = find_option(options, opt + 2)) &&
678 po->name && po->flags & OPT_BOOL) {
679 add_opt(octx, po, opt, "0");
680 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
681 "argument 0.\n", po->name, po->help);
685 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
686 return AVERROR_OPTION_NOT_FOUND;
689 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
690 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
693 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
698 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
700 int flags = av_parse_cpu_flags(arg);
705 av_set_cpu_flags_mask(flags);
709 int opt_loglevel(void *optctx, const char *opt, const char *arg)
711 const struct { const char *name; int level; } log_levels[] = {
712 { "quiet" , AV_LOG_QUIET },
713 { "panic" , AV_LOG_PANIC },
714 { "fatal" , AV_LOG_FATAL },
715 { "error" , AV_LOG_ERROR },
716 { "warning", AV_LOG_WARNING },
717 { "info" , AV_LOG_INFO },
718 { "verbose", AV_LOG_VERBOSE },
719 { "debug" , AV_LOG_DEBUG },
725 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
726 if (!strcmp(log_levels[i].name, arg)) {
727 av_log_set_level(log_levels[i].level);
732 level = strtol(arg, &tail, 10);
734 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
735 "Possible levels are numbers or:\n", arg);
736 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
737 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
740 av_log_set_level(level);
744 int opt_timelimit(void *optctx, const char *opt, const char *arg)
747 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
748 struct rlimit rl = { lim, lim + 1 };
749 if (setrlimit(RLIMIT_CPU, &rl))
752 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
757 void print_error(const char *filename, int err)
760 const char *errbuf_ptr = errbuf;
762 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
763 errbuf_ptr = strerror(AVUNERROR(err));
764 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
767 static int warned_cfg = 0;
770 #define SHOW_VERSION 2
771 #define SHOW_CONFIG 4
773 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
774 if (CONFIG_##LIBNAME) { \
775 const char *indent = flags & INDENT? " " : ""; \
776 if (flags & SHOW_VERSION) { \
777 unsigned int version = libname##_version(); \
778 av_log(NULL, level, \
779 "%slib%-10s %2d.%3d.%2d / %2d.%3d.%2d\n", \
781 LIB##LIBNAME##_VERSION_MAJOR, \
782 LIB##LIBNAME##_VERSION_MINOR, \
783 LIB##LIBNAME##_VERSION_MICRO, \
784 version >> 16, version >> 8 & 0xff, version & 0xff); \
786 if (flags & SHOW_CONFIG) { \
787 const char *cfg = libname##_configuration(); \
788 if (strcmp(LIBAV_CONFIGURATION, cfg)) { \
790 av_log(NULL, level, \
791 "%sWARNING: library configuration mismatch\n", \
795 av_log(NULL, level, "%s%-11s configuration: %s\n", \
796 indent, #libname, cfg); \
801 static void print_all_libs_info(int flags, int level)
803 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
804 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
805 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
806 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
807 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
808 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
809 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
812 void show_banner(void)
814 av_log(NULL, AV_LOG_INFO,
815 "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n",
816 program_name, program_birth_year, this_year);
817 av_log(NULL, AV_LOG_INFO, " built on %s %s with %s\n",
818 __DATE__, __TIME__, CC_IDENT);
819 av_log(NULL, AV_LOG_VERBOSE, " configuration: " LIBAV_CONFIGURATION "\n");
820 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_VERBOSE);
821 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE);
824 int show_version(void *optctx, const char *opt, const char *arg)
826 av_log_set_callback(log_callback_help);
827 printf("%s " LIBAV_VERSION "\n", program_name);
828 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
833 int show_license(void *optctx, const char *opt, const char *arg)
837 "This version of %s has nonfree parts compiled in.\n"
838 "Therefore it is not legally redistributable.\n",
841 "%s is free software; you can redistribute it and/or modify\n"
842 "it under the terms of the GNU General Public License as published by\n"
843 "the Free Software Foundation; either version 3 of the License, or\n"
844 "(at your option) any later version.\n"
846 "%s is distributed in the hope that it will be useful,\n"
847 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
848 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
849 "GNU General Public License for more details.\n"
851 "You should have received a copy of the GNU General Public License\n"
852 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
853 program_name, program_name, program_name
855 "%s is free software; you can redistribute it and/or modify\n"
856 "it under the terms of the GNU General Public License as published by\n"
857 "the Free Software Foundation; either version 2 of the License, or\n"
858 "(at your option) any later version.\n"
860 "%s is distributed in the hope that it will be useful,\n"
861 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
862 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
863 "GNU General Public License for more details.\n"
865 "You should have received a copy of the GNU General Public License\n"
866 "along with %s; if not, write to the Free Software\n"
867 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
868 program_name, program_name, program_name
870 "%s is free software; you can redistribute it and/or modify\n"
871 "it under the terms of the GNU Lesser General Public License as published by\n"
872 "the Free Software Foundation; either version 3 of the License, or\n"
873 "(at your option) any later version.\n"
875 "%s is distributed in the hope that it will be useful,\n"
876 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
877 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
878 "GNU Lesser General Public License for more details.\n"
880 "You should have received a copy of the GNU Lesser General Public License\n"
881 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
882 program_name, program_name, program_name
884 "%s is free software; you can redistribute it and/or\n"
885 "modify it under the terms of the GNU Lesser General Public\n"
886 "License as published by the Free Software Foundation; either\n"
887 "version 2.1 of the License, or (at your option) any later version.\n"
889 "%s is distributed in the hope that it will be useful,\n"
890 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
891 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
892 "Lesser General Public License for more details.\n"
894 "You should have received a copy of the GNU Lesser General Public\n"
895 "License along with %s; if not, write to the Free Software\n"
896 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
897 program_name, program_name, program_name
904 int show_formats(void *optctx, const char *opt, const char *arg)
906 AVInputFormat *ifmt = NULL;
907 AVOutputFormat *ofmt = NULL;
908 const char *last_name;
910 printf("File formats:\n"
911 " D. = Demuxing supported\n"
912 " .E = Muxing supported\n"
918 const char *name = NULL;
919 const char *long_name = NULL;
921 while ((ofmt = av_oformat_next(ofmt))) {
922 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
923 strcmp(ofmt->name, last_name) > 0) {
925 long_name = ofmt->long_name;
929 while ((ifmt = av_iformat_next(ifmt))) {
930 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
931 strcmp(ifmt->name, last_name) > 0) {
933 long_name = ifmt->long_name;
936 if (name && strcmp(ifmt->name, name) == 0)
943 printf(" %s%s %-15s %s\n",
947 long_name ? long_name:" ");
952 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
953 if (codec->field) { \
954 const type *p = c->field; \
956 printf(" Supported " list_name ":"); \
957 while (*p != term) { \
959 printf(" %s", name); \
965 static void print_codec(const AVCodec *c)
967 int encoder = av_codec_is_encoder(c);
969 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
970 c->long_name ? c->long_name : "");
972 if (c->type == AVMEDIA_TYPE_VIDEO) {
973 printf(" Threading capabilities: ");
974 switch (c->capabilities & (CODEC_CAP_FRAME_THREADS |
975 CODEC_CAP_SLICE_THREADS)) {
976 case CODEC_CAP_FRAME_THREADS |
977 CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
978 case CODEC_CAP_FRAME_THREADS: printf("frame"); break;
979 case CODEC_CAP_SLICE_THREADS: printf("slice"); break;
980 default: printf("no"); break;
985 if (c->supported_framerates) {
986 const AVRational *fps = c->supported_framerates;
988 printf(" Supported framerates:");
990 printf(" %d/%d", fps->num, fps->den);
995 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
996 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
997 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
998 GET_SAMPLE_RATE_NAME);
999 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1000 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1001 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1002 0, GET_CH_LAYOUT_DESC);
1004 if (c->priv_class) {
1005 show_help_children(c->priv_class,
1006 AV_OPT_FLAG_ENCODING_PARAM |
1007 AV_OPT_FLAG_DECODING_PARAM);
1011 static char get_media_type_char(enum AVMediaType type)
1014 case AVMEDIA_TYPE_VIDEO: return 'V';
1015 case AVMEDIA_TYPE_AUDIO: return 'A';
1016 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1017 default: return '?';
1021 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1024 while ((prev = av_codec_next(prev))) {
1025 if (prev->id == id &&
1026 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1032 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1034 const AVCodec *codec = NULL;
1036 printf(" (%s: ", encoder ? "encoders" : "decoders");
1038 while ((codec = next_codec_for_id(id, codec, encoder)))
1039 printf("%s ", codec->name);
1044 int show_codecs(void *optctx, const char *opt, const char *arg)
1046 const AVCodecDescriptor *desc = NULL;
1049 " D..... = Decoding supported\n"
1050 " .E.... = Encoding supported\n"
1051 " ..V... = Video codec\n"
1052 " ..A... = Audio codec\n"
1053 " ..S... = Subtitle codec\n"
1054 " ...I.. = Intra frame-only codec\n"
1055 " ....L. = Lossy compression\n"
1056 " .....S = Lossless compression\n"
1058 while ((desc = avcodec_descriptor_next(desc))) {
1059 const AVCodec *codec = NULL;
1061 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1062 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1064 printf("%c", get_media_type_char(desc->type));
1065 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1066 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1067 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1069 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1071 /* print decoders/encoders when there's more than one or their
1072 * names are different from codec name */
1073 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1074 if (strcmp(codec->name, desc->name)) {
1075 print_codecs_for_id(desc->id, 0);
1080 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1081 if (strcmp(codec->name, desc->name)) {
1082 print_codecs_for_id(desc->id, 1);
1092 static void print_codecs(int encoder)
1094 const AVCodecDescriptor *desc = NULL;
1099 " S... = Subtitle\n"
1100 " .F.. = Frame-level multithreading\n"
1101 " ..S. = Slice-level multithreading\n"
1102 " ...X = Codec is experimental\n"
1104 encoder ? "Encoders" : "Decoders");
1105 while ((desc = avcodec_descriptor_next(desc))) {
1106 const AVCodec *codec = NULL;
1108 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1109 printf("%c", get_media_type_char(desc->type));
1110 printf((codec->capabilities & CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1111 printf((codec->capabilities & CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1112 printf((codec->capabilities & CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1114 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1115 if (strcmp(codec->name, desc->name))
1116 printf(" (codec %s)", desc->name);
1123 int show_decoders(void *optctx, const char *opt, const char *arg)
1129 int show_encoders(void *optctx, const char *opt, const char *arg)
1135 int show_bsfs(void *optctx, const char *opt, const char *arg)
1137 AVBitStreamFilter *bsf = NULL;
1139 printf("Bitstream filters:\n");
1140 while ((bsf = av_bitstream_filter_next(bsf)))
1141 printf("%s\n", bsf->name);
1146 int show_protocols(void *optctx, const char *opt, const char *arg)
1148 void *opaque = NULL;
1151 printf("Supported file protocols:\n"
1153 while ((name = avio_enum_protocols(&opaque, 0)))
1154 printf("%s\n", name);
1155 printf("Output:\n");
1156 while ((name = avio_enum_protocols(&opaque, 1)))
1157 printf("%s\n", name);
1161 int show_filters(void *optctx, const char *opt, const char *arg)
1163 const AVFilter av_unused(*filter) = NULL;
1165 printf("Filters:\n");
1167 while ((filter = avfilter_next(filter)))
1168 printf("%-16s %s\n", filter->name, filter->description);
1173 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1175 const AVPixFmtDescriptor *pix_desc = NULL;
1177 printf("Pixel formats:\n"
1178 "I.... = Supported Input format for conversion\n"
1179 ".O... = Supported Output format for conversion\n"
1180 "..H.. = Hardware accelerated format\n"
1181 "...P. = Paletted format\n"
1182 "....B = Bitstream format\n"
1183 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1187 # define sws_isSupportedInput(x) 0
1188 # define sws_isSupportedOutput(x) 0
1191 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1192 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1193 printf("%c%c%c%c%c %-16s %d %2d\n",
1194 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1195 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1196 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1197 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1198 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1200 pix_desc->nb_components,
1201 av_get_bits_per_pixel(pix_desc));
1206 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1210 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1211 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1215 static void show_help_codec(const char *name, int encoder)
1217 const AVCodecDescriptor *desc;
1218 const AVCodec *codec;
1221 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1225 codec = encoder ? avcodec_find_encoder_by_name(name) :
1226 avcodec_find_decoder_by_name(name);
1230 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1233 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1239 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to Libav, "
1240 "but no %s for it are available. Libav might need to be "
1241 "recompiled with additional external libraries.\n",
1242 name, encoder ? "encoders" : "decoders");
1245 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by Libav.\n",
1250 static void show_help_demuxer(const char *name)
1252 const AVInputFormat *fmt = av_find_input_format(name);
1255 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1259 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1261 if (fmt->extensions)
1262 printf(" Common extensions: %s.\n", fmt->extensions);
1264 if (fmt->priv_class)
1265 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1268 static void show_help_muxer(const char *name)
1270 const AVCodecDescriptor *desc;
1271 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1274 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1278 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1280 if (fmt->extensions)
1281 printf(" Common extensions: %s.\n", fmt->extensions);
1283 printf(" Mime type: %s.\n", fmt->mime_type);
1284 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1285 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1286 printf(" Default video codec: %s.\n", desc->name);
1288 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1289 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1290 printf(" Default audio codec: %s.\n", desc->name);
1292 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1293 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1294 printf(" Default subtitle codec: %s.\n", desc->name);
1297 if (fmt->priv_class)
1298 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1302 static void show_help_filter(const char *name)
1304 const AVFilter *f = avfilter_get_by_name(name);
1308 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1311 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1315 printf("Filter %s [%s]:\n", f->name, f->description);
1317 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1318 printf(" slice threading supported\n");
1320 printf(" Inputs:\n");
1321 count = avfilter_pad_count(f->inputs);
1322 for (i = 0; i < count; i++) {
1323 printf(" %d %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1324 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1326 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1327 printf(" dynamic (depending on the options)\n");
1329 printf(" Outputs:\n");
1330 count = avfilter_pad_count(f->outputs);
1331 for (i = 0; i < count; i++) {
1332 printf(" %d %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1333 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1335 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1336 printf(" dynamic (depending on the options)\n");
1339 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM |
1340 AV_OPT_FLAG_AUDIO_PARAM);
1344 int show_help(void *optctx, const char *opt, const char *arg)
1347 av_log_set_callback(log_callback_help);
1349 topic = av_strdup(arg ? arg : "");
1350 par = strchr(topic, '=');
1355 show_help_default(topic, par);
1356 } else if (!strcmp(topic, "decoder")) {
1357 show_help_codec(par, 0);
1358 } else if (!strcmp(topic, "encoder")) {
1359 show_help_codec(par, 1);
1360 } else if (!strcmp(topic, "demuxer")) {
1361 show_help_demuxer(par);
1362 } else if (!strcmp(topic, "muxer")) {
1363 show_help_muxer(par);
1365 } else if (!strcmp(topic, "filter")) {
1366 show_help_filter(par);
1369 show_help_default(topic, par);
1376 int read_yesno(void)
1379 int yesno = (av_toupper(c) == 'Y');
1381 while (c != '\n' && c != EOF)
1387 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
1390 FILE *f = fopen(filename, "rb");
1393 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
1395 return AVERROR(errno);
1397 fseek(f, 0, SEEK_END);
1399 fseek(f, 0, SEEK_SET);
1400 *bufptr = av_malloc(*size + 1);
1402 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
1404 return AVERROR(ENOMEM);
1406 ret = fread(*bufptr, 1, *size, f);
1410 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
1411 filename, strerror(errno));
1412 ret = AVERROR(errno);
1417 (*bufptr)[(*size)++] = '\0';
1424 void init_pts_correction(PtsCorrectionContext *ctx)
1426 ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
1427 ctx->last_pts = ctx->last_dts = INT64_MIN;
1430 int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts,
1433 int64_t pts = AV_NOPTS_VALUE;
1435 if (dts != AV_NOPTS_VALUE) {
1436 ctx->num_faulty_dts += dts <= ctx->last_dts;
1437 ctx->last_dts = dts;
1439 if (reordered_pts != AV_NOPTS_VALUE) {
1440 ctx->num_faulty_pts += reordered_pts <= ctx->last_pts;
1441 ctx->last_pts = reordered_pts;
1443 if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
1444 && reordered_pts != AV_NOPTS_VALUE)
1445 pts = reordered_pts;
1452 FILE *get_preset_file(char *filename, size_t filename_size,
1453 const char *preset_name, int is_path,
1454 const char *codec_name)
1458 const char *base[3] = { getenv("AVCONV_DATADIR"),
1463 av_strlcpy(filename, preset_name, filename_size);
1464 f = fopen(filename, "r");
1466 for (i = 0; i < 3 && !f; i++) {
1469 snprintf(filename, filename_size, "%s%s/%s.avpreset", base[i],
1470 i != 1 ? "" : "/.avconv", preset_name);
1471 f = fopen(filename, "r");
1472 if (!f && codec_name) {
1473 snprintf(filename, filename_size,
1474 "%s%s/%s-%s.avpreset",
1475 base[i], i != 1 ? "" : "/.avconv", codec_name,
1477 f = fopen(filename, "r");
1485 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1487 if (*spec <= '9' && *spec >= '0') /* opt:index */
1488 return strtol(spec, NULL, 0) == st->index;
1489 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
1490 *spec == 't') { /* opt:[vasdt] */
1491 enum AVMediaType type;
1494 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
1495 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
1496 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
1497 case 'd': type = AVMEDIA_TYPE_DATA; break;
1498 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
1499 default: av_assert0(0);
1501 if (type != st->codec->codec_type)
1503 if (*spec++ == ':') { /* possibly followed by :index */
1504 int i, index = strtol(spec, NULL, 0);
1505 for (i = 0; i < s->nb_streams; i++)
1506 if (s->streams[i]->codec->codec_type == type && index-- == 0)
1507 return i == st->index;
1511 } else if (*spec == 'p' && *(spec + 1) == ':') {
1515 prog_id = strtol(spec, &endptr, 0);
1516 for (i = 0; i < s->nb_programs; i++) {
1517 if (s->programs[i]->id != prog_id)
1520 if (*endptr++ == ':') {
1521 int stream_idx = strtol(endptr, NULL, 0);
1522 return stream_idx >= 0 &&
1523 stream_idx < s->programs[i]->nb_stream_indexes &&
1524 st->index == s->programs[i]->stream_index[stream_idx];
1527 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
1528 if (st->index == s->programs[i]->stream_index[j])
1532 } else if (!*spec) /* empty specifier, matches everything */
1535 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1536 return AVERROR(EINVAL);
1539 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1540 AVFormatContext *s, AVStream *st, AVCodec *codec)
1542 AVDictionary *ret = NULL;
1543 AVDictionaryEntry *t = NULL;
1544 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1545 : AV_OPT_FLAG_DECODING_PARAM;
1547 const AVClass *cc = avcodec_get_class();
1550 codec = s->oformat ? avcodec_find_encoder(codec_id)
1551 : avcodec_find_decoder(codec_id);
1553 switch (st->codec->codec_type) {
1554 case AVMEDIA_TYPE_VIDEO:
1556 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1558 case AVMEDIA_TYPE_AUDIO:
1560 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1562 case AVMEDIA_TYPE_SUBTITLE:
1564 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1568 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1569 char *p = strchr(t->key, ':');
1571 /* check stream specification in opt name */
1573 switch (check_stream_specifier(s, st, p + 1)) {
1574 case 1: *p = 0; break;
1576 default: return NULL;
1579 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1580 (codec && codec->priv_class &&
1581 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1582 AV_OPT_SEARCH_FAKE_OBJ)))
1583 av_dict_set(&ret, t->key, t->value, 0);
1584 else if (t->key[0] == prefix &&
1585 av_opt_find(&cc, t->key + 1, NULL, flags,
1586 AV_OPT_SEARCH_FAKE_OBJ))
1587 av_dict_set(&ret, t->key + 1, t->value, 0);
1595 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1596 AVDictionary *codec_opts)
1599 AVDictionary **opts;
1603 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1605 av_log(NULL, AV_LOG_ERROR,
1606 "Could not alloc memory for stream options.\n");
1609 for (i = 0; i < s->nb_streams; i++)
1610 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1611 s, s->streams[i], NULL);
1615 void *grow_array(void *array, int elem_size, int *size, int new_size)
1617 if (new_size >= INT_MAX / elem_size) {
1618 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1621 if (*size < new_size) {
1622 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1624 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1627 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
1634 const char *media_type_string(enum AVMediaType media_type)
1636 switch (media_type) {
1637 case AVMEDIA_TYPE_VIDEO: return "video";
1638 case AVMEDIA_TYPE_AUDIO: return "audio";
1639 case AVMEDIA_TYPE_DATA: return "data";
1640 case AVMEDIA_TYPE_SUBTITLE: return "subtitle";
1641 case AVMEDIA_TYPE_ATTACHMENT: return "attachment";
1642 default: return "unknown";