2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 /* Include only the enabled headers since some compilers (namely, Sun
29 Studio) will not omit unused inline functions and create undefined
30 references to libraries that are not being built. */
33 #include "compat/va_copy.h"
34 #include "libavformat/avformat.h"
35 #include "libavfilter/avfilter.h"
36 #include "libavdevice/avdevice.h"
37 #include "libavresample/avresample.h"
38 #include "libswscale/swscale.h"
39 #include "libswresample/swresample.h"
40 #include "libpostproc/postprocess.h"
41 #include "libavutil/avassert.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/bprint.h"
44 #include "libavutil/display.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/pixdesc.h"
50 #include "libavutil/eval.h"
51 #include "libavutil/dict.h"
52 #include "libavutil/opt.h"
53 #include "libavutil/cpu.h"
54 #include "libavutil/ffversion.h"
57 #include "libavformat/network.h"
59 #if HAVE_SYS_RESOURCE_H
61 #include <sys/resource.h>
64 static int init_report(const char *env);
66 AVDictionary *sws_dict;
67 AVDictionary *swr_opts;
68 AVDictionary *format_opts, *codec_opts, *resample_opts;
70 static FILE *report_file;
71 static int report_file_level = AV_LOG_DEBUG;
76 av_dict_set(&sws_dict, "flags", "bicubic", 0);
79 void uninit_opts(void)
81 av_dict_free(&swr_opts);
82 av_dict_free(&sws_dict);
83 av_dict_free(&format_opts);
84 av_dict_free(&codec_opts);
85 av_dict_free(&resample_opts);
88 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
90 vfprintf(stdout, fmt, vl);
93 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
97 static int print_prefix = 1;
100 av_log_default_callback(ptr, level, fmt, vl);
101 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
103 if (report_file_level >= level) {
104 fputs(line, report_file);
109 static void (*program_exit)(int ret);
111 void register_exit(void (*cb)(int ret))
116 void exit_program(int ret)
124 double parse_number_or_die(const char *context, const char *numstr, int type,
125 double min, double max)
129 double d = av_strtod(numstr, &tail);
131 error = "Expected number for %s but found: %s\n";
132 else if (d < min || d > max)
133 error = "The value for %s was %s which is not within %f - %f\n";
134 else if (type == OPT_INT64 && (int64_t)d != d)
135 error = "Expected int64 for %s but found %s\n";
136 else if (type == OPT_INT && (int)d != d)
137 error = "Expected int for %s but found %s\n";
140 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
145 int64_t parse_time_or_die(const char *context, const char *timestr,
149 if (av_parse_time(&us, timestr, is_duration) < 0) {
150 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
151 is_duration ? "duration" : "date", context, timestr);
157 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
158 int rej_flags, int alt_flags)
164 for (po = options; po->name; po++) {
167 if (((po->flags & req_flags) != req_flags) ||
168 (alt_flags && !(po->flags & alt_flags)) ||
169 (po->flags & rej_flags))
176 av_strlcpy(buf, po->name, sizeof(buf));
178 av_strlcat(buf, " ", sizeof(buf));
179 av_strlcat(buf, po->argname, sizeof(buf));
181 printf("-%-17s %s\n", buf, po->help);
186 void show_help_children(const AVClass *class, int flags)
188 const AVClass *child = NULL;
190 av_opt_show2(&class, NULL, flags, 0);
194 while (child = av_opt_child_class_next(class, child))
195 show_help_children(child, flags);
198 static const OptionDef *find_option(const OptionDef *po, const char *name)
200 const char *p = strchr(name, ':');
201 int len = p ? p - name : strlen(name);
204 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
211 /* _WIN32 means using the windows libc - cygwin doesn't define that
212 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
213 * it doesn't provide the actual command line via GetCommandLineW(). */
214 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
216 #include <shellapi.h>
217 /* Will be leaked on exit */
218 static char** win32_argv_utf8 = NULL;
219 static int win32_argc = 0;
222 * Prepare command line arguments for executable.
223 * For Windows - perform wide-char to UTF-8 conversion.
224 * Input arguments should be main() function arguments.
225 * @param argc_ptr Arguments number (including executable)
226 * @param argv_ptr Arguments list.
228 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
232 int i, buffsize = 0, offset = 0;
234 if (win32_argv_utf8) {
235 *argc_ptr = win32_argc;
236 *argv_ptr = win32_argv_utf8;
241 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
242 if (win32_argc <= 0 || !argv_w)
245 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
246 for (i = 0; i < win32_argc; i++)
247 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
248 NULL, 0, NULL, NULL);
250 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
251 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
252 if (!win32_argv_utf8) {
257 for (i = 0; i < win32_argc; i++) {
258 win32_argv_utf8[i] = &argstr_flat[offset];
259 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
260 &argstr_flat[offset],
261 buffsize - offset, NULL, NULL);
263 win32_argv_utf8[i] = NULL;
266 *argc_ptr = win32_argc;
267 *argv_ptr = win32_argv_utf8;
270 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
274 #endif /* HAVE_COMMANDLINETOARGVW */
276 static int write_option(void *optctx, const OptionDef *po, const char *opt,
279 /* new-style options contain an offset into optctx, old-style address of
281 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
282 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
285 if (po->flags & OPT_SPEC) {
286 SpecifierOpt **so = dst;
287 char *p = strchr(opt, ':');
290 dstcount = (int *)(so + 1);
291 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
292 str = av_strdup(p ? p + 1 : "");
294 return AVERROR(ENOMEM);
295 (*so)[*dstcount - 1].specifier = str;
296 dst = &(*so)[*dstcount - 1].u;
299 if (po->flags & OPT_STRING) {
301 str = av_strdup(arg);
304 return AVERROR(ENOMEM);
306 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
307 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
308 } else if (po->flags & OPT_INT64) {
309 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
310 } else if (po->flags & OPT_TIME) {
311 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
312 } else if (po->flags & OPT_FLOAT) {
313 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
314 } else if (po->flags & OPT_DOUBLE) {
315 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
316 } else if (po->u.func_arg) {
317 int ret = po->u.func_arg(optctx, opt, arg);
319 av_log(NULL, AV_LOG_ERROR,
320 "Failed to set value '%s' for option '%s': %s\n",
321 arg, opt, av_err2str(ret));
325 if (po->flags & OPT_EXIT)
331 int parse_option(void *optctx, const char *opt, const char *arg,
332 const OptionDef *options)
337 po = find_option(options, opt);
338 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
339 /* handle 'no' bool option */
340 po = find_option(options, opt + 2);
341 if ((po->name && (po->flags & OPT_BOOL)))
343 } else if (po->flags & OPT_BOOL)
347 po = find_option(options, "default");
349 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
350 return AVERROR(EINVAL);
352 if (po->flags & HAS_ARG && !arg) {
353 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
354 return AVERROR(EINVAL);
357 ret = write_option(optctx, po, opt, arg);
361 return !!(po->flags & HAS_ARG);
364 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
365 void (*parse_arg_function)(void *, const char*))
368 int optindex, handleoptions = 1, ret;
370 /* perform system-dependent conversions for arguments list */
371 prepare_app_arguments(&argc, &argv);
375 while (optindex < argc) {
376 opt = argv[optindex++];
378 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
379 if (opt[1] == '-' && opt[2] == '\0') {
385 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
389 if (parse_arg_function)
390 parse_arg_function(optctx, opt);
395 int parse_optgroup(void *optctx, OptionGroup *g)
399 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
400 g->group_def->name, g->arg);
402 for (i = 0; i < g->nb_opts; i++) {
403 Option *o = &g->opts[i];
405 if (g->group_def->flags &&
406 !(g->group_def->flags & o->opt->flags)) {
407 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
408 "%s %s -- you are trying to apply an input option to an "
409 "output file or vice versa. Move this option before the "
410 "file it belongs to.\n", o->key, o->opt->help,
411 g->group_def->name, g->arg);
412 return AVERROR(EINVAL);
415 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
416 o->key, o->opt->help, o->val);
418 ret = write_option(optctx, o->opt, o->key, o->val);
423 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
428 int locate_option(int argc, char **argv, const OptionDef *options,
434 for (i = 1; i < argc; i++) {
435 const char *cur_opt = argv[i];
437 if (*cur_opt++ != '-')
440 po = find_option(options, cur_opt);
441 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
442 po = find_option(options, cur_opt + 2);
444 if ((!po->name && !strcmp(cur_opt, optname)) ||
445 (po->name && !strcmp(optname, po->name)))
448 if (!po->name || po->flags & HAS_ARG)
454 static void dump_argument(const char *a)
456 const unsigned char *p;
459 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
460 *p == '_' || (*p >= 'a' && *p <= 'z')))
463 fputs(a, report_file);
466 fputc('"', report_file);
467 for (p = a; *p; p++) {
468 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
469 fprintf(report_file, "\\%c", *p);
470 else if (*p < ' ' || *p > '~')
471 fprintf(report_file, "\\x%02x", *p);
473 fputc(*p, report_file);
475 fputc('"', report_file);
478 static void check_options(const OptionDef *po)
481 if (po->flags & OPT_PERFILE)
482 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
487 void parse_loglevel(int argc, char **argv, const OptionDef *options)
489 int idx = locate_option(argc, argv, options, "loglevel");
492 check_options(options);
495 idx = locate_option(argc, argv, options, "v");
496 if (idx && argv[idx + 1])
497 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
498 idx = locate_option(argc, argv, options, "report");
499 if ((env = getenv("FFREPORT")) || idx) {
503 fprintf(report_file, "Command line:\n");
504 for (i = 0; i < argc; i++) {
505 dump_argument(argv[i]);
506 fputc(i < argc - 1 ? ' ' : '\n', report_file);
511 idx = locate_option(argc, argv, options, "hide_banner");
516 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
517 int opt_flags, int search_flags)
519 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
525 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
526 int opt_default(void *optctx, const char *opt, const char *arg)
530 char opt_stripped[128];
532 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
533 #if CONFIG_AVRESAMPLE
534 const AVClass *rc = avresample_get_class();
537 const AVClass *sc = sws_get_class();
539 #if CONFIG_SWRESAMPLE
540 const AVClass *swr_class = swr_get_class();
543 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
544 av_log_set_level(AV_LOG_DEBUG);
546 if (!(p = strchr(opt, ':')))
547 p = opt + strlen(opt);
548 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
550 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
551 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
552 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
553 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
554 av_dict_set(&codec_opts, opt, arg, FLAGS);
557 if ((o = opt_find(&fc, opt, NULL, 0,
558 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
559 av_dict_set(&format_opts, opt, arg, FLAGS);
561 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
565 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
566 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
567 struct SwsContext *sws = sws_alloc_context();
568 int ret = av_opt_set(sws, opt, arg, 0);
569 sws_freeContext(sws);
570 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
571 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
572 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
573 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
574 return AVERROR(EINVAL);
577 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
581 av_dict_set(&sws_dict, opt, arg, FLAGS);
586 if (!consumed && !strcmp(opt, "sws_flags")) {
587 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
591 #if CONFIG_SWRESAMPLE
592 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
593 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
594 struct SwrContext *swr = swr_alloc();
595 int ret = av_opt_set(swr, opt, arg, 0);
598 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
601 av_dict_set(&swr_opts, opt, arg, FLAGS);
605 #if CONFIG_AVRESAMPLE
606 if ((o=opt_find(&rc, opt, NULL, 0,
607 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
608 av_dict_set(&resample_opts, opt, arg, FLAGS);
615 return AVERROR_OPTION_NOT_FOUND;
619 * Check whether given option is a group separator.
621 * @return index of the group definition that matched or -1 if none
623 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
628 for (i = 0; i < nb_groups; i++) {
629 const OptionGroupDef *p = &groups[i];
630 if (p->sep && !strcmp(p->sep, opt))
638 * Finish parsing an option group.
640 * @param group_idx which group definition should this group belong to
641 * @param arg argument of the group delimiting option
643 static void finish_group(OptionParseContext *octx, int group_idx,
646 OptionGroupList *l = &octx->groups[group_idx];
649 GROW_ARRAY(l->groups, l->nb_groups);
650 g = &l->groups[l->nb_groups - 1];
652 *g = octx->cur_group;
654 g->group_def = l->group_def;
655 g->sws_dict = sws_dict;
656 g->swr_opts = swr_opts;
657 g->codec_opts = codec_opts;
658 g->format_opts = format_opts;
659 g->resample_opts = resample_opts;
663 resample_opts = NULL;
668 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
672 * Add an option instance to currently parsed group.
674 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
675 const char *key, const char *val)
677 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
678 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
680 GROW_ARRAY(g->opts, g->nb_opts);
681 g->opts[g->nb_opts - 1].opt = opt;
682 g->opts[g->nb_opts - 1].key = key;
683 g->opts[g->nb_opts - 1].val = val;
686 static void init_parse_context(OptionParseContext *octx,
687 const OptionGroupDef *groups, int nb_groups)
689 static const OptionGroupDef global_group = { "global" };
692 memset(octx, 0, sizeof(*octx));
694 octx->nb_groups = nb_groups;
695 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
699 for (i = 0; i < octx->nb_groups; i++)
700 octx->groups[i].group_def = &groups[i];
702 octx->global_opts.group_def = &global_group;
703 octx->global_opts.arg = "";
708 void uninit_parse_context(OptionParseContext *octx)
712 for (i = 0; i < octx->nb_groups; i++) {
713 OptionGroupList *l = &octx->groups[i];
715 for (j = 0; j < l->nb_groups; j++) {
716 av_freep(&l->groups[j].opts);
717 av_dict_free(&l->groups[j].codec_opts);
718 av_dict_free(&l->groups[j].format_opts);
719 av_dict_free(&l->groups[j].resample_opts);
721 av_dict_free(&l->groups[j].sws_dict);
722 av_dict_free(&l->groups[j].swr_opts);
724 av_freep(&l->groups);
726 av_freep(&octx->groups);
728 av_freep(&octx->cur_group.opts);
729 av_freep(&octx->global_opts.opts);
734 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
735 const OptionDef *options,
736 const OptionGroupDef *groups, int nb_groups)
741 /* perform system-dependent conversions for arguments list */
742 prepare_app_arguments(&argc, &argv);
744 init_parse_context(octx, groups, nb_groups);
745 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
747 while (optindex < argc) {
748 const char *opt = argv[optindex++], *arg;
752 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
754 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
758 /* unnamed group separators, e.g. output filename */
759 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
760 finish_group(octx, 0, opt);
761 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
766 #define GET_ARG(arg) \
768 arg = argv[optindex++]; \
770 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
771 return AVERROR(EINVAL); \
775 /* named group separators, e.g. -i */
776 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
778 finish_group(octx, ret, arg);
779 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
780 groups[ret].name, arg);
785 po = find_option(options, opt);
787 if (po->flags & OPT_EXIT) {
788 /* optional argument, e.g. -h */
789 arg = argv[optindex++];
790 } else if (po->flags & HAS_ARG) {
796 add_opt(octx, po, opt, arg);
797 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
798 "argument '%s'.\n", po->name, po->help, arg);
803 if (argv[optindex]) {
804 ret = opt_default(NULL, opt, argv[optindex]);
806 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
807 "argument '%s'.\n", opt, argv[optindex]);
810 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
811 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
812 "with argument '%s'.\n", opt, argv[optindex]);
817 /* boolean -nofoo options */
818 if (opt[0] == 'n' && opt[1] == 'o' &&
819 (po = find_option(options, opt + 2)) &&
820 po->name && po->flags & OPT_BOOL) {
821 add_opt(octx, po, opt, "0");
822 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
823 "argument 0.\n", po->name, po->help);
827 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
828 return AVERROR_OPTION_NOT_FOUND;
831 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
832 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
835 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
840 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
843 unsigned flags = av_get_cpu_flags();
845 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
848 av_force_cpu_flags(flags);
852 int opt_loglevel(void *optctx, const char *opt, const char *arg)
854 const struct { const char *name; int level; } log_levels[] = {
855 { "quiet" , AV_LOG_QUIET },
856 { "panic" , AV_LOG_PANIC },
857 { "fatal" , AV_LOG_FATAL },
858 { "error" , AV_LOG_ERROR },
859 { "warning", AV_LOG_WARNING },
860 { "info" , AV_LOG_INFO },
861 { "verbose", AV_LOG_VERBOSE },
862 { "debug" , AV_LOG_DEBUG },
863 { "trace" , AV_LOG_TRACE },
870 flags = av_log_get_flags();
871 tail = strstr(arg, "repeat");
873 flags &= ~AV_LOG_SKIP_REPEATED;
875 flags |= AV_LOG_SKIP_REPEATED;
877 av_log_set_flags(flags);
879 arg += 6 + (arg[6]=='+');
883 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
884 if (!strcmp(log_levels[i].name, arg)) {
885 av_log_set_level(log_levels[i].level);
890 level = strtol(arg, &tail, 10);
892 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
893 "Possible levels are numbers or:\n", arg);
894 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
895 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
898 av_log_set_level(level);
902 static void expand_filename_template(AVBPrint *bp, const char *template,
907 while ((c = *(template++))) {
909 if (!(c = *(template++)))
913 av_bprintf(bp, "%s", program_name);
916 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
917 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
918 tm->tm_hour, tm->tm_min, tm->tm_sec);
921 av_bprint_chars(bp, c, 1);
925 av_bprint_chars(bp, c, 1);
930 static int init_report(const char *env)
932 char *filename_template = NULL;
939 if (report_file) /* already opened */
942 tm = localtime(&now);
944 while (env && *env) {
945 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
947 av_log(NULL, AV_LOG_ERROR,
948 "Failed to parse FFREPORT environment variable: %s\n",
955 if (!strcmp(key, "file")) {
956 av_free(filename_template);
957 filename_template = val;
959 } else if (!strcmp(key, "level")) {
961 report_file_level = strtol(val, &tail, 10);
963 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
967 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
973 av_bprint_init(&filename, 0, 1);
974 expand_filename_template(&filename,
975 av_x_if_null(filename_template, "%p-%t.log"), tm);
976 av_free(filename_template);
977 if (!av_bprint_is_complete(&filename)) {
978 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
979 return AVERROR(ENOMEM);
982 report_file = fopen(filename.str, "w");
984 int ret = AVERROR(errno);
985 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
986 filename.str, strerror(errno));
989 av_log_set_callback(log_callback_report);
990 av_log(NULL, AV_LOG_INFO,
991 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
992 "Report written to \"%s\"\n",
994 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
995 tm->tm_hour, tm->tm_min, tm->tm_sec,
997 av_bprint_finalize(&filename, NULL);
1001 int opt_report(const char *opt)
1003 return init_report(NULL);
1006 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1011 max = strtol(arg, &tail, 10);
1013 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1020 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1023 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1024 struct rlimit rl = { lim, lim + 1 };
1025 if (setrlimit(RLIMIT_CPU, &rl))
1026 perror("setrlimit");
1028 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1033 void print_error(const char *filename, int err)
1036 const char *errbuf_ptr = errbuf;
1038 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1039 errbuf_ptr = strerror(AVUNERROR(err));
1040 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1043 static int warned_cfg = 0;
1046 #define SHOW_VERSION 2
1047 #define SHOW_CONFIG 4
1048 #define SHOW_COPYRIGHT 8
1050 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1051 if (CONFIG_##LIBNAME) { \
1052 const char *indent = flags & INDENT? " " : ""; \
1053 if (flags & SHOW_VERSION) { \
1054 unsigned int version = libname##_version(); \
1055 av_log(NULL, level, \
1056 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1058 LIB##LIBNAME##_VERSION_MAJOR, \
1059 LIB##LIBNAME##_VERSION_MINOR, \
1060 LIB##LIBNAME##_VERSION_MICRO, \
1061 version >> 16, version >> 8 & 0xff, version & 0xff); \
1063 if (flags & SHOW_CONFIG) { \
1064 const char *cfg = libname##_configuration(); \
1065 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1066 if (!warned_cfg) { \
1067 av_log(NULL, level, \
1068 "%sWARNING: library configuration mismatch\n", \
1072 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1073 indent, #libname, cfg); \
1078 static void print_all_libs_info(int flags, int level)
1080 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1081 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1082 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1083 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1084 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1085 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1086 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1087 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
1088 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1091 static void print_program_info(int flags, int level)
1093 const char *indent = flags & INDENT? " " : "";
1095 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1096 if (flags & SHOW_COPYRIGHT)
1097 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1098 program_birth_year, CONFIG_THIS_YEAR);
1099 av_log(NULL, level, "\n");
1100 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1102 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1105 static void print_buildconf(int flags, int level)
1107 const char *indent = flags & INDENT ? " " : "";
1108 char str[] = { FFMPEG_CONFIGURATION };
1109 char *conflist, *remove_tilde, *splitconf;
1111 // Change all the ' --' strings to '~--' so that
1112 // they can be identified as tokens.
1113 while ((conflist = strstr(str, " --")) != NULL) {
1114 strncpy(conflist, "~--", 3);
1117 // Compensate for the weirdness this would cause
1118 // when passing 'pkg-config --static'.
1119 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1120 strncpy(remove_tilde, "pkg-config ", 11);
1123 splitconf = strtok(str, "~");
1124 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1125 while (splitconf != NULL) {
1126 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1127 splitconf = strtok(NULL, "~");
1131 void show_banner(int argc, char **argv, const OptionDef *options)
1133 int idx = locate_option(argc, argv, options, "version");
1134 if (hide_banner || idx)
1137 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1138 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1139 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1142 int show_version(void *optctx, const char *opt, const char *arg)
1144 av_log_set_callback(log_callback_help);
1145 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1146 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1151 int show_buildconf(void *optctx, const char *opt, const char *arg)
1153 av_log_set_callback(log_callback_help);
1154 print_buildconf (INDENT|0, AV_LOG_INFO);
1159 int show_license(void *optctx, const char *opt, const char *arg)
1163 "This version of %s has nonfree parts compiled in.\n"
1164 "Therefore it is not legally redistributable.\n",
1168 "%s is free software; you can redistribute it and/or modify\n"
1169 "it under the terms of the GNU General Public License as published by\n"
1170 "the Free Software Foundation; either version 3 of the License, or\n"
1171 "(at your option) any later version.\n"
1173 "%s is distributed in the hope that it will be useful,\n"
1174 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1175 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1176 "GNU General Public License for more details.\n"
1178 "You should have received a copy of the GNU General Public License\n"
1179 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1180 program_name, program_name, program_name );
1183 "%s is free software; you can redistribute it and/or modify\n"
1184 "it under the terms of the GNU General Public License as published by\n"
1185 "the Free Software Foundation; either version 2 of the License, or\n"
1186 "(at your option) any later version.\n"
1188 "%s is distributed in the hope that it will be useful,\n"
1189 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1190 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1191 "GNU General Public License for more details.\n"
1193 "You should have received a copy of the GNU General Public License\n"
1194 "along with %s; if not, write to the Free Software\n"
1195 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1196 program_name, program_name, program_name );
1199 "%s is free software; you can redistribute it and/or modify\n"
1200 "it under the terms of the GNU Lesser General Public License as published by\n"
1201 "the Free Software Foundation; either version 3 of the License, or\n"
1202 "(at your option) any later version.\n"
1204 "%s is distributed in the hope that it will be useful,\n"
1205 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1206 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1207 "GNU Lesser General Public License for more details.\n"
1209 "You should have received a copy of the GNU Lesser General Public License\n"
1210 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1211 program_name, program_name, program_name );
1214 "%s is free software; you can redistribute it and/or\n"
1215 "modify it under the terms of the GNU Lesser General Public\n"
1216 "License as published by the Free Software Foundation; either\n"
1217 "version 2.1 of the License, or (at your option) any later version.\n"
1219 "%s is distributed in the hope that it will be useful,\n"
1220 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1221 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1222 "Lesser General Public License for more details.\n"
1224 "You should have received a copy of the GNU Lesser General Public\n"
1225 "License along with %s; if not, write to the Free Software\n"
1226 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1227 program_name, program_name, program_name );
1233 static int is_device(const AVClass *avclass)
1237 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1240 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
1242 AVInputFormat *ifmt = NULL;
1243 AVOutputFormat *ofmt = NULL;
1244 const char *last_name;
1248 " D. = Demuxing supported\n"
1249 " .E = Muxing supported\n"
1250 " --\n", device_only ? "Devices:" : "File formats:");
1255 const char *name = NULL;
1256 const char *long_name = NULL;
1258 while ((ofmt = av_oformat_next(ofmt))) {
1259 is_dev = is_device(ofmt->priv_class);
1260 if (!is_dev && device_only)
1262 if ((!name || strcmp(ofmt->name, name) < 0) &&
1263 strcmp(ofmt->name, last_name) > 0) {
1265 long_name = ofmt->long_name;
1269 while ((ifmt = av_iformat_next(ifmt))) {
1270 is_dev = is_device(ifmt->priv_class);
1271 if (!is_dev && device_only)
1273 if ((!name || strcmp(ifmt->name, name) < 0) &&
1274 strcmp(ifmt->name, last_name) > 0) {
1276 long_name = ifmt->long_name;
1279 if (name && strcmp(ifmt->name, name) == 0)
1286 printf(" %s%s %-15s %s\n",
1290 long_name ? long_name:" ");
1295 int show_formats(void *optctx, const char *opt, const char *arg)
1297 return show_formats_devices(optctx, opt, arg, 0);
1300 int show_devices(void *optctx, const char *opt, const char *arg)
1302 return show_formats_devices(optctx, opt, arg, 1);
1305 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1306 if (codec->field) { \
1307 const type *p = codec->field; \
1309 printf(" Supported " list_name ":"); \
1310 while (*p != term) { \
1312 printf(" %s", name); \
1318 static void print_codec(const AVCodec *c)
1320 int encoder = av_codec_is_encoder(c);
1322 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1323 c->long_name ? c->long_name : "");
1325 printf(" General capabilities: ");
1326 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1327 printf("horizband ");
1328 if (c->capabilities & AV_CODEC_CAP_DR1)
1330 if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1332 if (c->capabilities & AV_CODEC_CAP_DELAY)
1334 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1336 if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1337 printf("subframes ");
1338 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1340 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1342 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1343 printf("paramchange ");
1344 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1345 printf("variable ");
1346 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1347 AV_CODEC_CAP_SLICE_THREADS |
1348 AV_CODEC_CAP_AUTO_THREADS))
1350 if (!c->capabilities)
1354 if (c->type == AVMEDIA_TYPE_VIDEO ||
1355 c->type == AVMEDIA_TYPE_AUDIO) {
1356 printf(" Threading capabilities: ");
1357 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1358 AV_CODEC_CAP_SLICE_THREADS |
1359 AV_CODEC_CAP_AUTO_THREADS)) {
1360 case AV_CODEC_CAP_FRAME_THREADS |
1361 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1362 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1363 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1364 case AV_CODEC_CAP_AUTO_THREADS : printf("auto"); break;
1365 default: printf("none"); break;
1370 if (c->supported_framerates) {
1371 const AVRational *fps = c->supported_framerates;
1373 printf(" Supported framerates:");
1375 printf(" %d/%d", fps->num, fps->den);
1380 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1381 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1382 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1383 GET_SAMPLE_RATE_NAME);
1384 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1385 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1386 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1387 0, GET_CH_LAYOUT_DESC);
1389 if (c->priv_class) {
1390 show_help_children(c->priv_class,
1391 AV_OPT_FLAG_ENCODING_PARAM |
1392 AV_OPT_FLAG_DECODING_PARAM);
1396 static char get_media_type_char(enum AVMediaType type)
1399 case AVMEDIA_TYPE_VIDEO: return 'V';
1400 case AVMEDIA_TYPE_AUDIO: return 'A';
1401 case AVMEDIA_TYPE_DATA: return 'D';
1402 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1403 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1404 default: return '?';
1408 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1411 while ((prev = av_codec_next(prev))) {
1412 if (prev->id == id &&
1413 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1419 static int compare_codec_desc(const void *a, const void *b)
1421 const AVCodecDescriptor * const *da = a;
1422 const AVCodecDescriptor * const *db = b;
1424 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1425 strcmp((*da)->name, (*db)->name);
1428 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1430 const AVCodecDescriptor *desc = NULL;
1431 const AVCodecDescriptor **codecs;
1432 unsigned nb_codecs = 0, i = 0;
1434 while ((desc = avcodec_descriptor_next(desc)))
1436 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1437 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1441 while ((desc = avcodec_descriptor_next(desc)))
1443 av_assert0(i == nb_codecs);
1444 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1449 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1451 const AVCodec *codec = NULL;
1453 printf(" (%s: ", encoder ? "encoders" : "decoders");
1455 while ((codec = next_codec_for_id(id, codec, encoder)))
1456 printf("%s ", codec->name);
1461 int show_codecs(void *optctx, const char *opt, const char *arg)
1463 const AVCodecDescriptor **codecs;
1464 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1467 " D..... = Decoding supported\n"
1468 " .E.... = Encoding supported\n"
1469 " ..V... = Video codec\n"
1470 " ..A... = Audio codec\n"
1471 " ..S... = Subtitle codec\n"
1472 " ...I.. = Intra frame-only codec\n"
1473 " ....L. = Lossy compression\n"
1474 " .....S = Lossless compression\n"
1476 for (i = 0; i < nb_codecs; i++) {
1477 const AVCodecDescriptor *desc = codecs[i];
1478 const AVCodec *codec = NULL;
1480 if (strstr(desc->name, "_deprecated"))
1484 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1485 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1487 printf("%c", get_media_type_char(desc->type));
1488 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1489 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1490 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1492 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1494 /* print decoders/encoders when there's more than one or their
1495 * names are different from codec name */
1496 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1497 if (strcmp(codec->name, desc->name)) {
1498 print_codecs_for_id(desc->id, 0);
1503 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1504 if (strcmp(codec->name, desc->name)) {
1505 print_codecs_for_id(desc->id, 1);
1516 static void print_codecs(int encoder)
1518 const AVCodecDescriptor **codecs;
1519 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1524 " S..... = Subtitle\n"
1525 " .F.... = Frame-level multithreading\n"
1526 " ..S... = Slice-level multithreading\n"
1527 " ...X.. = Codec is experimental\n"
1528 " ....B. = Supports draw_horiz_band\n"
1529 " .....D = Supports direct rendering method 1\n"
1531 encoder ? "Encoders" : "Decoders");
1532 for (i = 0; i < nb_codecs; i++) {
1533 const AVCodecDescriptor *desc = codecs[i];
1534 const AVCodec *codec = NULL;
1536 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1537 printf(" %c", get_media_type_char(desc->type));
1538 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1539 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1540 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1541 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1542 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1544 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1545 if (strcmp(codec->name, desc->name))
1546 printf(" (codec %s)", desc->name);
1554 int show_decoders(void *optctx, const char *opt, const char *arg)
1560 int show_encoders(void *optctx, const char *opt, const char *arg)
1566 int show_bsfs(void *optctx, const char *opt, const char *arg)
1568 AVBitStreamFilter *bsf = NULL;
1570 printf("Bitstream filters:\n");
1571 while ((bsf = av_bitstream_filter_next(bsf)))
1572 printf("%s\n", bsf->name);
1577 int show_protocols(void *optctx, const char *opt, const char *arg)
1579 void *opaque = NULL;
1582 printf("Supported file protocols:\n"
1584 while ((name = avio_enum_protocols(&opaque, 0)))
1585 printf(" %s\n", name);
1586 printf("Output:\n");
1587 while ((name = avio_enum_protocols(&opaque, 1)))
1588 printf(" %s\n", name);
1592 int show_filters(void *optctx, const char *opt, const char *arg)
1595 const AVFilter *filter = NULL;
1596 char descr[64], *descr_cur;
1598 const AVFilterPad *pad;
1601 " T.. = Timeline support\n"
1602 " .S. = Slice threading\n"
1603 " ..C = Command support\n"
1604 " A = Audio input/output\n"
1605 " V = Video input/output\n"
1606 " N = Dynamic number and/or type of input/output\n"
1607 " | = Source or sink filter\n");
1608 while ((filter = avfilter_next(filter))) {
1610 for (i = 0; i < 2; i++) {
1612 *(descr_cur++) = '-';
1613 *(descr_cur++) = '>';
1615 pad = i ? filter->outputs : filter->inputs;
1616 for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1617 if (descr_cur >= descr + sizeof(descr) - 4)
1619 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1622 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1623 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1626 printf(" %c%c%c %-16s %-10s %s\n",
1627 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1628 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1629 filter->process_command ? 'C' : '.',
1630 filter->name, descr, filter->description);
1633 printf("No filters available: libavfilter disabled\n");
1638 int show_colors(void *optctx, const char *opt, const char *arg)
1644 printf("%-32s #RRGGBB\n", "name");
1646 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1647 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1652 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1654 const AVPixFmtDescriptor *pix_desc = NULL;
1656 printf("Pixel formats:\n"
1657 "I.... = Supported Input format for conversion\n"
1658 ".O... = Supported Output format for conversion\n"
1659 "..H.. = Hardware accelerated format\n"
1660 "...P. = Paletted format\n"
1661 "....B = Bitstream format\n"
1662 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1666 # define sws_isSupportedInput(x) 0
1667 # define sws_isSupportedOutput(x) 0
1670 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1671 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1672 printf("%c%c%c%c%c %-16s %d %2d\n",
1673 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1674 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1675 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1676 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1677 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1679 pix_desc->nb_components,
1680 av_get_bits_per_pixel(pix_desc));
1685 int show_layouts(void *optctx, const char *opt, const char *arg)
1689 const char *name, *descr;
1691 printf("Individual channels:\n"
1692 "NAME DESCRIPTION\n");
1693 for (i = 0; i < 63; i++) {
1694 name = av_get_channel_name((uint64_t)1 << i);
1697 descr = av_get_channel_description((uint64_t)1 << i);
1698 printf("%-14s %s\n", name, descr);
1700 printf("\nStandard channel layouts:\n"
1701 "NAME DECOMPOSITION\n");
1702 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1704 printf("%-14s ", name);
1705 for (j = 1; j; j <<= 1)
1707 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1714 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1718 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1719 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1723 static void show_help_codec(const char *name, int encoder)
1725 const AVCodecDescriptor *desc;
1726 const AVCodec *codec;
1729 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1733 codec = encoder ? avcodec_find_encoder_by_name(name) :
1734 avcodec_find_decoder_by_name(name);
1738 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1741 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1747 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1748 "but no %s for it are available. FFmpeg might need to be "
1749 "recompiled with additional external libraries.\n",
1750 name, encoder ? "encoders" : "decoders");
1753 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1758 static void show_help_demuxer(const char *name)
1760 const AVInputFormat *fmt = av_find_input_format(name);
1763 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1767 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1769 if (fmt->extensions)
1770 printf(" Common extensions: %s.\n", fmt->extensions);
1772 if (fmt->priv_class)
1773 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1776 static void show_help_muxer(const char *name)
1778 const AVCodecDescriptor *desc;
1779 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1782 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1786 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1788 if (fmt->extensions)
1789 printf(" Common extensions: %s.\n", fmt->extensions);
1791 printf(" Mime type: %s.\n", fmt->mime_type);
1792 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1793 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1794 printf(" Default video codec: %s.\n", desc->name);
1796 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1797 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1798 printf(" Default audio codec: %s.\n", desc->name);
1800 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1801 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1802 printf(" Default subtitle codec: %s.\n", desc->name);
1805 if (fmt->priv_class)
1806 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1810 static void show_help_filter(const char *name)
1813 const AVFilter *f = avfilter_get_by_name(name);
1817 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1820 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1824 printf("Filter %s\n", f->name);
1826 printf(" %s\n", f->description);
1828 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1829 printf(" slice threading supported\n");
1831 printf(" Inputs:\n");
1832 count = avfilter_pad_count(f->inputs);
1833 for (i = 0; i < count; i++) {
1834 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1835 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1837 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1838 printf(" dynamic (depending on the options)\n");
1840 printf(" none (source filter)\n");
1842 printf(" Outputs:\n");
1843 count = avfilter_pad_count(f->outputs);
1844 for (i = 0; i < count; i++) {
1845 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1846 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1848 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1849 printf(" dynamic (depending on the options)\n");
1851 printf(" none (sink filter)\n");
1854 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1855 AV_OPT_FLAG_AUDIO_PARAM);
1856 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1857 printf("This filter has support for timeline through the 'enable' option.\n");
1859 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1860 "can not to satisfy request\n");
1865 int show_help(void *optctx, const char *opt, const char *arg)
1868 av_log_set_callback(log_callback_help);
1870 topic = av_strdup(arg ? arg : "");
1872 return AVERROR(ENOMEM);
1873 par = strchr(topic, '=');
1878 show_help_default(topic, par);
1879 } else if (!strcmp(topic, "decoder")) {
1880 show_help_codec(par, 0);
1881 } else if (!strcmp(topic, "encoder")) {
1882 show_help_codec(par, 1);
1883 } else if (!strcmp(topic, "demuxer")) {
1884 show_help_demuxer(par);
1885 } else if (!strcmp(topic, "muxer")) {
1886 show_help_muxer(par);
1888 } else if (!strcmp(topic, "filter")) {
1889 show_help_filter(par);
1892 show_help_default(topic, par);
1899 int read_yesno(void)
1902 int yesno = (av_toupper(c) == 'Y');
1904 while (c != '\n' && c != EOF)
1910 FILE *get_preset_file(char *filename, size_t filename_size,
1911 const char *preset_name, int is_path,
1912 const char *codec_name)
1916 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1921 av_strlcpy(filename, preset_name, filename_size);
1922 f = fopen(filename, "r");
1925 char datadir[MAX_PATH], *ls;
1928 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1930 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1931 if (*ls == '\\') *ls = '/';
1933 if (ls = strrchr(datadir, '/'))
1936 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1941 for (i = 0; i < 3 && !f; i++) {
1944 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1945 i != 1 ? "" : "/.ffmpeg", preset_name);
1946 f = fopen(filename, "r");
1947 if (!f && codec_name) {
1948 snprintf(filename, filename_size,
1949 "%s%s/%s-%s.ffpreset",
1950 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1952 f = fopen(filename, "r");
1960 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1962 int ret = avformat_match_stream_specifier(s, st, spec);
1964 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1968 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1969 AVFormatContext *s, AVStream *st, AVCodec *codec)
1971 AVDictionary *ret = NULL;
1972 AVDictionaryEntry *t = NULL;
1973 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1974 : AV_OPT_FLAG_DECODING_PARAM;
1976 const AVClass *cc = avcodec_get_class();
1979 codec = s->oformat ? avcodec_find_encoder(codec_id)
1980 : avcodec_find_decoder(codec_id);
1982 switch (st->codec->codec_type) {
1983 case AVMEDIA_TYPE_VIDEO:
1985 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1987 case AVMEDIA_TYPE_AUDIO:
1989 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1991 case AVMEDIA_TYPE_SUBTITLE:
1993 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1997 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1998 char *p = strchr(t->key, ':');
2000 /* check stream specification in opt name */
2002 switch (check_stream_specifier(s, st, p + 1)) {
2003 case 1: *p = 0; break;
2005 default: exit_program(1);
2008 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2010 (codec->priv_class &&
2011 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2012 AV_OPT_SEARCH_FAKE_OBJ)))
2013 av_dict_set(&ret, t->key, t->value, 0);
2014 else if (t->key[0] == prefix &&
2015 av_opt_find(&cc, t->key + 1, NULL, flags,
2016 AV_OPT_SEARCH_FAKE_OBJ))
2017 av_dict_set(&ret, t->key + 1, t->value, 0);
2025 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2026 AVDictionary *codec_opts)
2029 AVDictionary **opts;
2033 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2035 av_log(NULL, AV_LOG_ERROR,
2036 "Could not alloc memory for stream options.\n");
2039 for (i = 0; i < s->nb_streams; i++)
2040 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
2041 s, s->streams[i], NULL);
2045 void *grow_array(void *array, int elem_size, int *size, int new_size)
2047 if (new_size >= INT_MAX / elem_size) {
2048 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2051 if (*size < new_size) {
2052 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2054 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2057 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2064 double get_rotation(AVStream *st)
2066 AVDictionaryEntry *rotate_tag = av_dict_get(st->metadata, "rotate", NULL, 0);
2067 uint8_t* displaymatrix = av_stream_get_side_data(st,
2068 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2071 if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
2073 theta = av_strtod(rotate_tag->value, &tail);
2077 if (displaymatrix && !theta)
2078 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2080 theta -= 360*floor(theta/360 + 0.9/360);
2082 if (fabs(theta - 90*round(theta/90)) > 2)
2083 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2084 "If you want to help, upload a sample "
2085 "of this file to ftp://upload.ffmpeg.org/incoming/ "
2086 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2092 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2095 AVDeviceInfoList *device_list = NULL;
2097 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2098 return AVERROR(EINVAL);
2100 printf("Audo-detected sources for %s:\n", fmt->name);
2101 if (!fmt->get_device_list) {
2102 ret = AVERROR(ENOSYS);
2103 printf("Cannot list sources. Not implemented.\n");
2107 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2108 printf("Cannot list sources.\n");
2112 for (i = 0; i < device_list->nb_devices; i++) {
2113 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2114 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2118 avdevice_free_list_devices(&device_list);
2122 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2125 AVDeviceInfoList *device_list = NULL;
2127 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2128 return AVERROR(EINVAL);
2130 printf("Audo-detected sinks for %s:\n", fmt->name);
2131 if (!fmt->get_device_list) {
2132 ret = AVERROR(ENOSYS);
2133 printf("Cannot list sinks. Not implemented.\n");
2137 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2138 printf("Cannot list sinks.\n");
2142 for (i = 0; i < device_list->nb_devices; i++) {
2143 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2144 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2148 avdevice_free_list_devices(&device_list);
2152 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2156 char *opts_str = NULL;
2157 av_assert0(dev && opts);
2158 *dev = av_strdup(arg);
2160 return AVERROR(ENOMEM);
2161 if ((opts_str = strchr(*dev, ','))) {
2162 *(opts_str++) = '\0';
2163 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2169 printf("\nDevice name is not provided.\n"
2170 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2174 int show_sources(void *optctx, const char *opt, const char *arg)
2176 AVInputFormat *fmt = NULL;
2178 AVDictionary *opts = NULL;
2180 int error_level = av_log_get_level();
2182 av_log_set_level(AV_LOG_ERROR);
2184 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2188 fmt = av_input_audio_device_next(fmt);
2190 if (!strcmp(fmt->name, "lavfi"))
2191 continue; //it's pointless to probe lavfi
2192 if (dev && !av_match_name(dev, fmt->name))
2194 print_device_sources(fmt, opts);
2198 fmt = av_input_video_device_next(fmt);
2200 if (dev && !av_match_name(dev, fmt->name))
2202 print_device_sources(fmt, opts);
2206 av_dict_free(&opts);
2208 av_log_set_level(error_level);
2212 int show_sinks(void *optctx, const char *opt, const char *arg)
2214 AVOutputFormat *fmt = NULL;
2216 AVDictionary *opts = NULL;
2218 int error_level = av_log_get_level();
2220 av_log_set_level(AV_LOG_ERROR);
2222 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2226 fmt = av_output_audio_device_next(fmt);
2228 if (dev && !av_match_name(dev, fmt->name))
2230 print_device_sinks(fmt, opts);
2234 fmt = av_output_video_device_next(fmt);
2236 if (dev && !av_match_name(dev, fmt->name))
2238 print_device_sinks(fmt, opts);
2242 av_dict_free(&opts);
2244 av_log_set_level(error_level);