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 "libswscale/swscale.h"
38 #include "libswresample/swresample.h"
39 #include "libpostproc/postprocess.h"
40 #include "libavutil/attributes.h"
41 #include "libavutil/avassert.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/bprint.h"
44 #include "libavutil/display.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/pixdesc.h"
50 #include "libavutil/eval.h"
51 #include "libavutil/dict.h"
52 #include "libavutil/opt.h"
53 #include "libavutil/cpu.h"
54 #include "libavutil/ffversion.h"
55 #include "libavutil/version.h"
57 #if HAVE_SYS_RESOURCE_H
59 #include <sys/resource.h>
65 static int init_report(const char *env);
67 AVDictionary *sws_dict;
68 AVDictionary *swr_opts;
69 AVDictionary *format_opts, *codec_opts, *resample_opts;
71 static FILE *report_file;
72 static int report_file_level = AV_LOG_DEBUG;
75 enum show_muxdemuxers {
83 av_dict_set(&sws_dict, "flags", "bicubic", 0);
86 void uninit_opts(void)
88 av_dict_free(&swr_opts);
89 av_dict_free(&sws_dict);
90 av_dict_free(&format_opts);
91 av_dict_free(&codec_opts);
92 av_dict_free(&resample_opts);
95 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
97 vfprintf(stdout, fmt, vl);
100 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
104 static int print_prefix = 1;
107 av_log_default_callback(ptr, level, fmt, vl);
108 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
110 if (report_file_level >= level) {
111 fputs(line, report_file);
116 void init_dynload(void)
118 #if HAVE_SETDLLDIRECTORY && defined(_WIN32)
119 /* Calling SetDllDirectory with the empty string (but not NULL) removes the
120 * current working directory from the DLL search path as a security pre-caution. */
125 static void (*program_exit)(int ret);
127 void register_exit(void (*cb)(int ret))
132 void exit_program(int ret)
140 double parse_number_or_die(const char *context, const char *numstr, int type,
141 double min, double max)
145 double d = av_strtod(numstr, &tail);
147 error = "Expected number for %s but found: %s\n";
148 else if (d < min || d > max)
149 error = "The value for %s was %s which is not within %f - %f\n";
150 else if (type == OPT_INT64 && (int64_t)d != d)
151 error = "Expected int64 for %s but found %s\n";
152 else if (type == OPT_INT && (int)d != d)
153 error = "Expected int for %s but found %s\n";
156 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
161 int64_t parse_time_or_die(const char *context, const char *timestr,
165 if (av_parse_time(&us, timestr, is_duration) < 0) {
166 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
167 is_duration ? "duration" : "date", context, timestr);
173 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
174 int rej_flags, int alt_flags)
180 for (po = options; po->name; po++) {
183 if (((po->flags & req_flags) != req_flags) ||
184 (alt_flags && !(po->flags & alt_flags)) ||
185 (po->flags & rej_flags))
192 av_strlcpy(buf, po->name, sizeof(buf));
194 av_strlcat(buf, " ", sizeof(buf));
195 av_strlcat(buf, po->argname, sizeof(buf));
197 printf("-%-17s %s\n", buf, po->help);
202 void show_help_children(const AVClass *class, int flags)
205 const AVClass *child;
207 av_opt_show2(&class, NULL, flags, 0);
211 while (child = av_opt_child_class_iterate(class, &iter))
212 show_help_children(child, flags);
215 static const OptionDef *find_option(const OptionDef *po, const char *name)
219 if (av_strstart(name, po->name, &end) && (!*end || *end == ':'))
226 /* _WIN32 means using the windows libc - cygwin doesn't define that
227 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
228 * it doesn't provide the actual command line via GetCommandLineW(). */
229 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
230 #include <shellapi.h>
231 /* Will be leaked on exit */
232 static char** win32_argv_utf8 = NULL;
233 static int win32_argc = 0;
236 * Prepare command line arguments for executable.
237 * For Windows - perform wide-char to UTF-8 conversion.
238 * Input arguments should be main() function arguments.
239 * @param argc_ptr Arguments number (including executable)
240 * @param argv_ptr Arguments list.
242 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
246 int i, buffsize = 0, offset = 0;
248 if (win32_argv_utf8) {
249 *argc_ptr = win32_argc;
250 *argv_ptr = win32_argv_utf8;
255 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
256 if (win32_argc <= 0 || !argv_w)
259 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
260 for (i = 0; i < win32_argc; i++)
261 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
262 NULL, 0, NULL, NULL);
264 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
265 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
266 if (!win32_argv_utf8) {
271 for (i = 0; i < win32_argc; i++) {
272 win32_argv_utf8[i] = &argstr_flat[offset];
273 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
274 &argstr_flat[offset],
275 buffsize - offset, NULL, NULL);
277 win32_argv_utf8[i] = NULL;
280 *argc_ptr = win32_argc;
281 *argv_ptr = win32_argv_utf8;
284 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
288 #endif /* HAVE_COMMANDLINETOARGVW */
290 static int write_option(void *optctx, const OptionDef *po, const char *opt,
293 /* new-style options contain an offset into optctx, old-style address of
295 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
296 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
299 if (po->flags & OPT_SPEC) {
300 SpecifierOpt **so = dst;
301 char *p = strchr(opt, ':');
304 dstcount = (int *)(so + 1);
305 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
306 str = av_strdup(p ? p + 1 : "");
308 return AVERROR(ENOMEM);
309 (*so)[*dstcount - 1].specifier = str;
310 dst = &(*so)[*dstcount - 1].u;
313 if (po->flags & OPT_STRING) {
315 str = av_strdup(arg);
318 return AVERROR(ENOMEM);
320 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
321 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
322 } else if (po->flags & OPT_INT64) {
323 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
324 } else if (po->flags & OPT_TIME) {
325 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
326 } else if (po->flags & OPT_FLOAT) {
327 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
328 } else if (po->flags & OPT_DOUBLE) {
329 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
330 } else if (po->u.func_arg) {
331 int ret = po->u.func_arg(optctx, opt, arg);
333 av_log(NULL, AV_LOG_ERROR,
334 "Failed to set value '%s' for option '%s': %s\n",
335 arg, opt, av_err2str(ret));
339 if (po->flags & OPT_EXIT)
345 int parse_option(void *optctx, const char *opt, const char *arg,
346 const OptionDef *options)
351 po = find_option(options, opt);
352 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
353 /* handle 'no' bool option */
354 po = find_option(options, opt + 2);
355 if ((po->name && (po->flags & OPT_BOOL)))
357 } else if (po->flags & OPT_BOOL)
361 po = find_option(options, "default");
363 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
364 return AVERROR(EINVAL);
366 if (po->flags & HAS_ARG && !arg) {
367 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
368 return AVERROR(EINVAL);
371 ret = write_option(optctx, po, opt, arg);
375 return !!(po->flags & HAS_ARG);
378 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
379 void (*parse_arg_function)(void *, const char*))
382 int optindex, handleoptions = 1, ret;
384 /* perform system-dependent conversions for arguments list */
385 prepare_app_arguments(&argc, &argv);
389 while (optindex < argc) {
390 opt = argv[optindex++];
392 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
393 if (opt[1] == '-' && opt[2] == '\0') {
399 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
403 if (parse_arg_function)
404 parse_arg_function(optctx, opt);
409 int parse_optgroup(void *optctx, OptionGroup *g)
413 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
414 g->group_def->name, g->arg);
416 for (i = 0; i < g->nb_opts; i++) {
417 Option *o = &g->opts[i];
419 if (g->group_def->flags &&
420 !(g->group_def->flags & o->opt->flags)) {
421 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
422 "%s %s -- you are trying to apply an input option to an "
423 "output file or vice versa. Move this option before the "
424 "file it belongs to.\n", o->key, o->opt->help,
425 g->group_def->name, g->arg);
426 return AVERROR(EINVAL);
429 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
430 o->key, o->opt->help, o->val);
432 ret = write_option(optctx, o->opt, o->key, o->val);
437 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
442 int locate_option(int argc, char **argv, const OptionDef *options,
448 for (i = 1; i < argc; i++) {
449 const char *cur_opt = argv[i];
451 if (*cur_opt++ != '-')
454 po = find_option(options, cur_opt);
455 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
456 po = find_option(options, cur_opt + 2);
458 if ((!po->name && !strcmp(cur_opt, optname)) ||
459 (po->name && !strcmp(optname, po->name)))
462 if (!po->name || po->flags & HAS_ARG)
468 static void dump_argument(const char *a)
470 const unsigned char *p;
473 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
474 *p == '_' || (*p >= 'a' && *p <= 'z')))
477 fputs(a, report_file);
480 fputc('"', report_file);
481 for (p = a; *p; p++) {
482 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
483 fprintf(report_file, "\\%c", *p);
484 else if (*p < ' ' || *p > '~')
485 fprintf(report_file, "\\x%02x", *p);
487 fputc(*p, report_file);
489 fputc('"', report_file);
492 static void check_options(const OptionDef *po)
495 if (po->flags & OPT_PERFILE)
496 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
501 void parse_loglevel(int argc, char **argv, const OptionDef *options)
503 int idx = locate_option(argc, argv, options, "loglevel");
506 check_options(options);
509 idx = locate_option(argc, argv, options, "v");
510 if (idx && argv[idx + 1])
511 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
512 idx = locate_option(argc, argv, options, "report");
513 if ((env = getenv("FFREPORT")) || idx) {
517 fprintf(report_file, "Command line:\n");
518 for (i = 0; i < argc; i++) {
519 dump_argument(argv[i]);
520 fputc(i < argc - 1 ? ' ' : '\n', report_file);
525 idx = locate_option(argc, argv, options, "hide_banner");
530 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
531 int opt_flags, int search_flags)
533 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
539 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
540 int opt_default(void *optctx, const char *opt, const char *arg)
544 char opt_stripped[128];
546 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
548 const AVClass *sc = sws_get_class();
550 #if CONFIG_SWRESAMPLE
551 const AVClass *swr_class = swr_get_class();
554 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
555 av_log_set_level(AV_LOG_DEBUG);
557 if (!(p = strchr(opt, ':')))
558 p = opt + strlen(opt);
559 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
561 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
562 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
563 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
564 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
565 av_dict_set(&codec_opts, opt, arg, FLAGS);
568 if ((o = opt_find(&fc, opt, NULL, 0,
569 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
570 av_dict_set(&format_opts, opt, arg, FLAGS);
572 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
576 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
577 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
578 struct SwsContext *sws = sws_alloc_context();
579 int ret = av_opt_set(sws, opt, arg, 0);
580 sws_freeContext(sws);
581 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
582 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
583 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
584 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
585 return AVERROR(EINVAL);
588 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
592 av_dict_set(&sws_dict, opt, arg, FLAGS);
597 if (!consumed && !strcmp(opt, "sws_flags")) {
598 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
602 #if CONFIG_SWRESAMPLE
603 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
604 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
605 struct SwrContext *swr = swr_alloc();
606 int ret = av_opt_set(swr, opt, arg, 0);
609 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
612 av_dict_set(&swr_opts, opt, arg, FLAGS);
619 return AVERROR_OPTION_NOT_FOUND;
623 * Check whether given option is a group separator.
625 * @return index of the group definition that matched or -1 if none
627 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
632 for (i = 0; i < nb_groups; i++) {
633 const OptionGroupDef *p = &groups[i];
634 if (p->sep && !strcmp(p->sep, opt))
642 * Finish parsing an option group.
644 * @param group_idx which group definition should this group belong to
645 * @param arg argument of the group delimiting option
647 static void finish_group(OptionParseContext *octx, int group_idx,
650 OptionGroupList *l = &octx->groups[group_idx];
653 GROW_ARRAY(l->groups, l->nb_groups);
654 g = &l->groups[l->nb_groups - 1];
656 *g = octx->cur_group;
658 g->group_def = l->group_def;
659 g->sws_dict = sws_dict;
660 g->swr_opts = swr_opts;
661 g->codec_opts = codec_opts;
662 g->format_opts = format_opts;
663 g->resample_opts = resample_opts;
667 resample_opts = NULL;
672 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
676 * Add an option instance to currently parsed group.
678 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
679 const char *key, const char *val)
681 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
682 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
684 GROW_ARRAY(g->opts, g->nb_opts);
685 g->opts[g->nb_opts - 1].opt = opt;
686 g->opts[g->nb_opts - 1].key = key;
687 g->opts[g->nb_opts - 1].val = val;
690 static void init_parse_context(OptionParseContext *octx,
691 const OptionGroupDef *groups, int nb_groups)
693 static const OptionGroupDef global_group = { "global" };
696 memset(octx, 0, sizeof(*octx));
698 octx->nb_groups = nb_groups;
699 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
703 for (i = 0; i < octx->nb_groups; i++)
704 octx->groups[i].group_def = &groups[i];
706 octx->global_opts.group_def = &global_group;
707 octx->global_opts.arg = "";
712 void uninit_parse_context(OptionParseContext *octx)
716 for (i = 0; i < octx->nb_groups; i++) {
717 OptionGroupList *l = &octx->groups[i];
719 for (j = 0; j < l->nb_groups; j++) {
720 av_freep(&l->groups[j].opts);
721 av_dict_free(&l->groups[j].codec_opts);
722 av_dict_free(&l->groups[j].format_opts);
723 av_dict_free(&l->groups[j].resample_opts);
725 av_dict_free(&l->groups[j].sws_dict);
726 av_dict_free(&l->groups[j].swr_opts);
728 av_freep(&l->groups);
730 av_freep(&octx->groups);
732 av_freep(&octx->cur_group.opts);
733 av_freep(&octx->global_opts.opts);
738 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
739 const OptionDef *options,
740 const OptionGroupDef *groups, int nb_groups)
745 /* perform system-dependent conversions for arguments list */
746 prepare_app_arguments(&argc, &argv);
748 init_parse_context(octx, groups, nb_groups);
749 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
751 while (optindex < argc) {
752 const char *opt = argv[optindex++], *arg;
756 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
758 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
762 /* unnamed group separators, e.g. output filename */
763 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
764 finish_group(octx, 0, opt);
765 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
770 #define GET_ARG(arg) \
772 arg = argv[optindex++]; \
774 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
775 return AVERROR(EINVAL); \
779 /* named group separators, e.g. -i */
780 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
782 finish_group(octx, ret, arg);
783 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
784 groups[ret].name, arg);
789 po = find_option(options, opt);
791 if (po->flags & OPT_EXIT) {
792 /* optional argument, e.g. -h */
793 arg = argv[optindex++];
794 } else if (po->flags & HAS_ARG) {
800 add_opt(octx, po, opt, arg);
801 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
802 "argument '%s'.\n", po->name, po->help, arg);
807 if (argv[optindex]) {
808 ret = opt_default(NULL, opt, argv[optindex]);
810 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
811 "argument '%s'.\n", opt, argv[optindex]);
814 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
815 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
816 "with argument '%s'.\n", opt, argv[optindex]);
821 /* boolean -nofoo options */
822 if (opt[0] == 'n' && opt[1] == 'o' &&
823 (po = find_option(options, opt + 2)) &&
824 po->name && po->flags & OPT_BOOL) {
825 add_opt(octx, po, opt, "0");
826 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
827 "argument 0.\n", po->name, po->help);
831 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
832 return AVERROR_OPTION_NOT_FOUND;
835 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
836 av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
837 "command: may be ignored.\n");
839 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
844 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
847 unsigned flags = av_get_cpu_flags();
849 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
852 av_force_cpu_flags(flags);
856 int opt_loglevel(void *optctx, const char *opt, const char *arg)
858 const struct { const char *name; int level; } log_levels[] = {
859 { "quiet" , AV_LOG_QUIET },
860 { "panic" , AV_LOG_PANIC },
861 { "fatal" , AV_LOG_FATAL },
862 { "error" , AV_LOG_ERROR },
863 { "warning", AV_LOG_WARNING },
864 { "info" , AV_LOG_INFO },
865 { "verbose", AV_LOG_VERBOSE },
866 { "debug" , AV_LOG_DEBUG },
867 { "trace" , AV_LOG_TRACE },
871 int flags = av_log_get_flags();
872 int level = av_log_get_level();
878 if (*token == '+' || *token == '-') {
884 flags = 0; /* missing relative prefix, build absolute value */
886 if (!strncmp(token, "repeat", 6)) {
888 flags |= AV_LOG_SKIP_REPEATED;
890 flags &= ~AV_LOG_SKIP_REPEATED;
893 } else if (!strncmp(token, "level", 5)) {
895 flags &= ~AV_LOG_PRINT_LEVEL;
897 flags |= AV_LOG_PRINT_LEVEL;
907 } else if (*arg == '+') {
910 flags = av_log_get_flags(); /* level value without prefix, reset flags */
913 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
914 if (!strcmp(log_levels[i].name, arg)) {
915 level = log_levels[i].level;
920 level = strtol(arg, &tail, 10);
922 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
923 "Possible levels are numbers or:\n", arg);
924 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
925 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
930 av_log_set_flags(flags);
931 av_log_set_level(level);
935 static void expand_filename_template(AVBPrint *bp, const char *template,
940 while ((c = *(template++))) {
942 if (!(c = *(template++)))
946 av_bprintf(bp, "%s", program_name);
949 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
950 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
951 tm->tm_hour, tm->tm_min, tm->tm_sec);
954 av_bprint_chars(bp, c, 1);
958 av_bprint_chars(bp, c, 1);
963 static int init_report(const char *env)
965 char *filename_template = NULL;
968 int prog_loglevel, envlevel = 0;
973 if (report_file) /* already opened */
976 tm = localtime(&now);
978 while (env && *env) {
979 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
981 av_log(NULL, AV_LOG_ERROR,
982 "Failed to parse FFREPORT environment variable: %s\n",
989 if (!strcmp(key, "file")) {
990 av_free(filename_template);
991 filename_template = val;
993 } else if (!strcmp(key, "level")) {
995 report_file_level = strtol(val, &tail, 10);
997 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1002 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1008 av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
1009 expand_filename_template(&filename,
1010 av_x_if_null(filename_template, "%p-%t.log"), tm);
1011 av_free(filename_template);
1012 if (!av_bprint_is_complete(&filename)) {
1013 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1014 return AVERROR(ENOMEM);
1017 prog_loglevel = av_log_get_level();
1019 report_file_level = FFMAX(report_file_level, prog_loglevel);
1021 report_file = fopen(filename.str, "w");
1023 int ret = AVERROR(errno);
1024 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1025 filename.str, strerror(errno));
1028 av_log_set_callback(log_callback_report);
1029 av_log(NULL, AV_LOG_INFO,
1030 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1031 "Report written to \"%s\"\n"
1034 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1035 tm->tm_hour, tm->tm_min, tm->tm_sec,
1036 filename.str, report_file_level);
1037 av_bprint_finalize(&filename, NULL);
1041 int opt_report(void *optctx, const char *opt, const char *arg)
1043 return init_report(NULL);
1046 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1051 max = strtol(arg, &tail, 10);
1053 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1060 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1063 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1064 struct rlimit rl = { lim, lim + 1 };
1065 if (setrlimit(RLIMIT_CPU, &rl))
1066 perror("setrlimit");
1068 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1073 void print_error(const char *filename, int err)
1076 const char *errbuf_ptr = errbuf;
1078 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1079 errbuf_ptr = strerror(AVUNERROR(err));
1080 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1083 static int warned_cfg = 0;
1086 #define SHOW_VERSION 2
1087 #define SHOW_CONFIG 4
1088 #define SHOW_COPYRIGHT 8
1090 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1091 if (CONFIG_##LIBNAME) { \
1092 const char *indent = flags & INDENT? " " : ""; \
1093 if (flags & SHOW_VERSION) { \
1094 unsigned int version = libname##_version(); \
1095 av_log(NULL, level, \
1096 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1098 LIB##LIBNAME##_VERSION_MAJOR, \
1099 LIB##LIBNAME##_VERSION_MINOR, \
1100 LIB##LIBNAME##_VERSION_MICRO, \
1101 AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1102 AV_VERSION_MICRO(version)); \
1104 if (flags & SHOW_CONFIG) { \
1105 const char *cfg = libname##_configuration(); \
1106 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1107 if (!warned_cfg) { \
1108 av_log(NULL, level, \
1109 "%sWARNING: library configuration mismatch\n", \
1113 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1114 indent, #libname, cfg); \
1119 static void print_all_libs_info(int flags, int level)
1121 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1122 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1123 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1124 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1125 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1126 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1127 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1128 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1131 static void print_program_info(int flags, int level)
1133 const char *indent = flags & INDENT? " " : "";
1135 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1136 if (flags & SHOW_COPYRIGHT)
1137 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1138 program_birth_year, CONFIG_THIS_YEAR);
1139 av_log(NULL, level, "\n");
1140 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1142 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1145 static void print_buildconf(int flags, int level)
1147 const char *indent = flags & INDENT ? " " : "";
1148 char str[] = { FFMPEG_CONFIGURATION };
1149 char *conflist, *remove_tilde, *splitconf;
1151 // Change all the ' --' strings to '~--' so that
1152 // they can be identified as tokens.
1153 while ((conflist = strstr(str, " --")) != NULL) {
1157 // Compensate for the weirdness this would cause
1158 // when passing 'pkg-config --static'.
1159 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1160 remove_tilde[sizeof("pkg-config~") - 2] = ' ';
1163 splitconf = strtok(str, "~");
1164 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1165 while (splitconf != NULL) {
1166 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1167 splitconf = strtok(NULL, "~");
1171 void show_banner(int argc, char **argv, const OptionDef *options)
1173 int idx = locate_option(argc, argv, options, "version");
1174 if (hide_banner || idx)
1177 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1178 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1179 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1182 int show_version(void *optctx, const char *opt, const char *arg)
1184 av_log_set_callback(log_callback_help);
1185 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1186 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1191 int show_buildconf(void *optctx, const char *opt, const char *arg)
1193 av_log_set_callback(log_callback_help);
1194 print_buildconf (INDENT|0, AV_LOG_INFO);
1199 int show_license(void *optctx, const char *opt, const char *arg)
1203 "This version of %s has nonfree parts compiled in.\n"
1204 "Therefore it is not legally redistributable.\n",
1208 "%s is free software; you can redistribute it and/or modify\n"
1209 "it under the terms of the GNU General Public License as published by\n"
1210 "the Free Software Foundation; either version 3 of the License, or\n"
1211 "(at your option) any later version.\n"
1213 "%s is distributed in the hope that it will be useful,\n"
1214 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1215 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1216 "GNU General Public License for more details.\n"
1218 "You should have received a copy of the GNU General Public License\n"
1219 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1220 program_name, program_name, program_name );
1223 "%s is free software; you can redistribute it and/or modify\n"
1224 "it under the terms of the GNU General Public License as published by\n"
1225 "the Free Software Foundation; either version 2 of the License, or\n"
1226 "(at your option) any later version.\n"
1228 "%s is distributed in the hope that it will be useful,\n"
1229 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1230 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1231 "GNU General Public License for more details.\n"
1233 "You should have received a copy of the GNU General Public License\n"
1234 "along with %s; if not, write to the Free Software\n"
1235 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1236 program_name, program_name, program_name );
1239 "%s is free software; you can redistribute it and/or modify\n"
1240 "it under the terms of the GNU Lesser General Public License as published by\n"
1241 "the Free Software Foundation; either version 3 of the License, or\n"
1242 "(at your option) any later version.\n"
1244 "%s is distributed in the hope that it will be useful,\n"
1245 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1246 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1247 "GNU Lesser General Public License for more details.\n"
1249 "You should have received a copy of the GNU Lesser General Public License\n"
1250 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1251 program_name, program_name, program_name );
1254 "%s is free software; you can redistribute it and/or\n"
1255 "modify it under the terms of the GNU Lesser General Public\n"
1256 "License as published by the Free Software Foundation; either\n"
1257 "version 2.1 of the License, or (at your option) any later version.\n"
1259 "%s is distributed in the hope that it will be useful,\n"
1260 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1261 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1262 "Lesser General Public License for more details.\n"
1264 "You should have received a copy of the GNU Lesser General Public\n"
1265 "License along with %s; if not, write to the Free Software\n"
1266 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1267 program_name, program_name, program_name );
1273 static int is_device(const AVClass *avclass)
1277 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1280 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
1282 void *ifmt_opaque = NULL;
1283 const AVInputFormat *ifmt = NULL;
1284 void *ofmt_opaque = NULL;
1285 const AVOutputFormat *ofmt = NULL;
1286 const char *last_name;
1290 " D. = Demuxing supported\n"
1291 " .E = Muxing supported\n"
1292 " --\n", device_only ? "Devices:" : "File formats:");
1297 const char *name = NULL;
1298 const char *long_name = NULL;
1300 if (muxdemuxers !=SHOW_DEMUXERS) {
1302 while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
1303 is_dev = is_device(ofmt->priv_class);
1304 if (!is_dev && device_only)
1306 if ((!name || strcmp(ofmt->name, name) < 0) &&
1307 strcmp(ofmt->name, last_name) > 0) {
1309 long_name = ofmt->long_name;
1314 if (muxdemuxers != SHOW_MUXERS) {
1316 while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
1317 is_dev = is_device(ifmt->priv_class);
1318 if (!is_dev && device_only)
1320 if ((!name || strcmp(ifmt->name, name) < 0) &&
1321 strcmp(ifmt->name, last_name) > 0) {
1323 long_name = ifmt->long_name;
1326 if (name && strcmp(ifmt->name, name) == 0)
1334 printf(" %s%s %-15s %s\n",
1338 long_name ? long_name:" ");
1343 int show_formats(void *optctx, const char *opt, const char *arg)
1345 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
1348 int show_muxers(void *optctx, const char *opt, const char *arg)
1350 return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
1353 int show_demuxers(void *optctx, const char *opt, const char *arg)
1355 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
1358 int show_devices(void *optctx, const char *opt, const char *arg)
1360 return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
1363 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1364 if (codec->field) { \
1365 const type *p = codec->field; \
1367 printf(" Supported " list_name ":"); \
1368 while (*p != term) { \
1370 printf(" %s", name); \
1376 static void print_codec(const AVCodec *c)
1378 int encoder = av_codec_is_encoder(c);
1380 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1381 c->long_name ? c->long_name : "");
1383 printf(" General capabilities: ");
1384 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1385 printf("horizband ");
1386 if (c->capabilities & AV_CODEC_CAP_DR1)
1388 if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1390 if (c->capabilities & AV_CODEC_CAP_DELAY)
1392 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1394 if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1395 printf("subframes ");
1396 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1398 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1400 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1401 printf("paramchange ");
1402 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1403 printf("variable ");
1404 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1405 AV_CODEC_CAP_SLICE_THREADS |
1406 AV_CODEC_CAP_OTHER_THREADS))
1408 if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
1409 printf("avoidprobe ");
1410 if (c->capabilities & AV_CODEC_CAP_HARDWARE)
1411 printf("hardware ");
1412 if (c->capabilities & AV_CODEC_CAP_HYBRID)
1414 if (!c->capabilities)
1418 if (c->type == AVMEDIA_TYPE_VIDEO ||
1419 c->type == AVMEDIA_TYPE_AUDIO) {
1420 printf(" Threading capabilities: ");
1421 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1422 AV_CODEC_CAP_SLICE_THREADS |
1423 AV_CODEC_CAP_OTHER_THREADS)) {
1424 case AV_CODEC_CAP_FRAME_THREADS |
1425 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1426 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1427 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1428 case AV_CODEC_CAP_OTHER_THREADS: printf("other"); break;
1429 default: printf("none"); break;
1434 if (avcodec_get_hw_config(c, 0)) {
1435 printf(" Supported hardware devices: ");
1436 for (int i = 0;; i++) {
1437 const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
1440 printf("%s ", av_hwdevice_get_type_name(config->device_type));
1445 if (c->supported_framerates) {
1446 const AVRational *fps = c->supported_framerates;
1448 printf(" Supported framerates:");
1450 printf(" %d/%d", fps->num, fps->den);
1455 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1456 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1457 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1458 GET_SAMPLE_RATE_NAME);
1459 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1460 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1461 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1462 0, GET_CH_LAYOUT_DESC);
1464 if (c->priv_class) {
1465 show_help_children(c->priv_class,
1466 AV_OPT_FLAG_ENCODING_PARAM |
1467 AV_OPT_FLAG_DECODING_PARAM);
1471 static char get_media_type_char(enum AVMediaType type)
1474 case AVMEDIA_TYPE_VIDEO: return 'V';
1475 case AVMEDIA_TYPE_AUDIO: return 'A';
1476 case AVMEDIA_TYPE_DATA: return 'D';
1477 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1478 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1479 default: return '?';
1483 static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter,
1487 while ((c = av_codec_iterate(iter))) {
1489 (encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c)))
1495 static int compare_codec_desc(const void *a, const void *b)
1497 const AVCodecDescriptor * const *da = a;
1498 const AVCodecDescriptor * const *db = b;
1500 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1501 strcmp((*da)->name, (*db)->name);
1504 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1506 const AVCodecDescriptor *desc = NULL;
1507 const AVCodecDescriptor **codecs;
1508 unsigned nb_codecs = 0, i = 0;
1510 while ((desc = avcodec_descriptor_next(desc)))
1512 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1513 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1517 while ((desc = avcodec_descriptor_next(desc)))
1519 av_assert0(i == nb_codecs);
1520 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1525 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1528 const AVCodec *codec;
1530 printf(" (%s: ", encoder ? "encoders" : "decoders");
1532 while ((codec = next_codec_for_id(id, &iter, encoder)))
1533 printf("%s ", codec->name);
1538 int show_codecs(void *optctx, const char *opt, const char *arg)
1540 const AVCodecDescriptor **codecs;
1541 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1544 " D..... = Decoding supported\n"
1545 " .E.... = Encoding supported\n"
1546 " ..V... = Video codec\n"
1547 " ..A... = Audio codec\n"
1548 " ..S... = Subtitle codec\n"
1549 " ...I.. = Intra frame-only codec\n"
1550 " ....L. = Lossy compression\n"
1551 " .....S = Lossless compression\n"
1553 for (i = 0; i < nb_codecs; i++) {
1554 const AVCodecDescriptor *desc = codecs[i];
1555 const AVCodec *codec;
1558 if (strstr(desc->name, "_deprecated"))
1562 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1563 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1565 printf("%c", get_media_type_char(desc->type));
1566 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1567 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1568 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1570 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1572 /* print decoders/encoders when there's more than one or their
1573 * names are different from codec name */
1574 while ((codec = next_codec_for_id(desc->id, &iter, 0))) {
1575 if (strcmp(codec->name, desc->name)) {
1576 print_codecs_for_id(desc->id, 0);
1581 while ((codec = next_codec_for_id(desc->id, &iter, 1))) {
1582 if (strcmp(codec->name, desc->name)) {
1583 print_codecs_for_id(desc->id, 1);
1594 static void print_codecs(int encoder)
1596 const AVCodecDescriptor **codecs;
1597 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1602 " S..... = Subtitle\n"
1603 " .F.... = Frame-level multithreading\n"
1604 " ..S... = Slice-level multithreading\n"
1605 " ...X.. = Codec is experimental\n"
1606 " ....B. = Supports draw_horiz_band\n"
1607 " .....D = Supports direct rendering method 1\n"
1609 encoder ? "Encoders" : "Decoders");
1610 for (i = 0; i < nb_codecs; i++) {
1611 const AVCodecDescriptor *desc = codecs[i];
1612 const AVCodec *codec;
1615 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
1616 printf(" %c", get_media_type_char(desc->type));
1617 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1618 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1619 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1620 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1621 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1623 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1624 if (strcmp(codec->name, desc->name))
1625 printf(" (codec %s)", desc->name);
1633 int show_decoders(void *optctx, const char *opt, const char *arg)
1639 int show_encoders(void *optctx, const char *opt, const char *arg)
1645 int show_bsfs(void *optctx, const char *opt, const char *arg)
1647 const AVBitStreamFilter *bsf = NULL;
1648 void *opaque = NULL;
1650 printf("Bitstream filters:\n");
1651 while ((bsf = av_bsf_iterate(&opaque)))
1652 printf("%s\n", bsf->name);
1657 int show_protocols(void *optctx, const char *opt, const char *arg)
1659 void *opaque = NULL;
1662 printf("Supported file protocols:\n"
1664 while ((name = avio_enum_protocols(&opaque, 0)))
1665 printf(" %s\n", name);
1666 printf("Output:\n");
1667 while ((name = avio_enum_protocols(&opaque, 1)))
1668 printf(" %s\n", name);
1672 int show_filters(void *optctx, const char *opt, const char *arg)
1675 const AVFilter *filter = NULL;
1676 char descr[64], *descr_cur;
1677 void *opaque = NULL;
1679 const AVFilterPad *pad;
1682 " T.. = Timeline support\n"
1683 " .S. = Slice threading\n"
1684 " ..C = Command support\n"
1685 " A = Audio input/output\n"
1686 " V = Video input/output\n"
1687 " N = Dynamic number and/or type of input/output\n"
1688 " | = Source or sink filter\n");
1689 while ((filter = av_filter_iterate(&opaque))) {
1691 for (i = 0; i < 2; i++) {
1693 *(descr_cur++) = '-';
1694 *(descr_cur++) = '>';
1696 pad = i ? filter->outputs : filter->inputs;
1697 for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1698 if (descr_cur >= descr + sizeof(descr) - 4)
1700 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1703 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1704 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1707 printf(" %c%c%c %-17s %-10s %s\n",
1708 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1709 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1710 filter->process_command ? 'C' : '.',
1711 filter->name, descr, filter->description);
1714 printf("No filters available: libavfilter disabled\n");
1719 int show_colors(void *optctx, const char *opt, const char *arg)
1725 printf("%-32s #RRGGBB\n", "name");
1727 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1728 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1733 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1735 const AVPixFmtDescriptor *pix_desc = NULL;
1737 printf("Pixel formats:\n"
1738 "I.... = Supported Input format for conversion\n"
1739 ".O... = Supported Output format for conversion\n"
1740 "..H.. = Hardware accelerated format\n"
1741 "...P. = Paletted format\n"
1742 "....B = Bitstream format\n"
1743 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1747 # define sws_isSupportedInput(x) 0
1748 # define sws_isSupportedOutput(x) 0
1751 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1752 enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1753 printf("%c%c%c%c%c %-16s %d %2d\n",
1754 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1755 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1756 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1757 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1758 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1760 pix_desc->nb_components,
1761 av_get_bits_per_pixel(pix_desc));
1766 int show_layouts(void *optctx, const char *opt, const char *arg)
1770 const char *name, *descr;
1772 printf("Individual channels:\n"
1773 "NAME DESCRIPTION\n");
1774 for (i = 0; i < 63; i++) {
1775 name = av_get_channel_name((uint64_t)1 << i);
1778 descr = av_get_channel_description((uint64_t)1 << i);
1779 printf("%-14s %s\n", name, descr);
1781 printf("\nStandard channel layouts:\n"
1782 "NAME DECOMPOSITION\n");
1783 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1785 printf("%-14s ", name);
1786 for (j = 1; j; j <<= 1)
1788 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1795 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1799 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1800 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1804 static void show_help_codec(const char *name, int encoder)
1806 const AVCodecDescriptor *desc;
1807 const AVCodec *codec;
1810 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1814 codec = encoder ? avcodec_find_encoder_by_name(name) :
1815 avcodec_find_decoder_by_name(name);
1819 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1823 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
1829 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1830 "but no %s for it are available. FFmpeg might need to be "
1831 "recompiled with additional external libraries.\n",
1832 name, encoder ? "encoders" : "decoders");
1835 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1840 static void show_help_demuxer(const char *name)
1842 const AVInputFormat *fmt = av_find_input_format(name);
1845 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1849 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1851 if (fmt->extensions)
1852 printf(" Common extensions: %s.\n", fmt->extensions);
1854 if (fmt->priv_class)
1855 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1858 static void show_help_protocol(const char *name)
1860 const AVClass *proto_class;
1863 av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
1867 proto_class = avio_protocol_get_class(name);
1869 av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
1873 show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
1876 static void show_help_muxer(const char *name)
1878 const AVCodecDescriptor *desc;
1879 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1882 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1886 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1888 if (fmt->extensions)
1889 printf(" Common extensions: %s.\n", fmt->extensions);
1891 printf(" Mime type: %s.\n", fmt->mime_type);
1892 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1893 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1894 printf(" Default video codec: %s.\n", desc->name);
1896 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1897 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1898 printf(" Default audio codec: %s.\n", desc->name);
1900 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1901 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1902 printf(" Default subtitle codec: %s.\n", desc->name);
1905 if (fmt->priv_class)
1906 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1910 static void show_help_filter(const char *name)
1913 const AVFilter *f = avfilter_get_by_name(name);
1917 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1920 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1924 printf("Filter %s\n", f->name);
1926 printf(" %s\n", f->description);
1928 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1929 printf(" slice threading supported\n");
1931 printf(" Inputs:\n");
1932 count = avfilter_pad_count(f->inputs);
1933 for (i = 0; i < count; i++) {
1934 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1935 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1937 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1938 printf(" dynamic (depending on the options)\n");
1940 printf(" none (source filter)\n");
1942 printf(" Outputs:\n");
1943 count = avfilter_pad_count(f->outputs);
1944 for (i = 0; i < count; i++) {
1945 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1946 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1948 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1949 printf(" dynamic (depending on the options)\n");
1951 printf(" none (sink filter)\n");
1954 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1955 AV_OPT_FLAG_AUDIO_PARAM);
1956 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1957 printf("This filter has support for timeline through the 'enable' option.\n");
1959 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1960 "can not to satisfy request\n");
1965 static void show_help_bsf(const char *name)
1967 const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
1970 av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
1973 av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
1977 printf("Bit stream filter %s\n", bsf->name);
1978 PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
1979 AV_CODEC_ID_NONE, GET_CODEC_NAME);
1980 if (bsf->priv_class)
1981 show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
1984 int show_help(void *optctx, const char *opt, const char *arg)
1987 av_log_set_callback(log_callback_help);
1989 topic = av_strdup(arg ? arg : "");
1991 return AVERROR(ENOMEM);
1992 par = strchr(topic, '=');
1997 show_help_default(topic, par);
1998 } else if (!strcmp(topic, "decoder")) {
1999 show_help_codec(par, 0);
2000 } else if (!strcmp(topic, "encoder")) {
2001 show_help_codec(par, 1);
2002 } else if (!strcmp(topic, "demuxer")) {
2003 show_help_demuxer(par);
2004 } else if (!strcmp(topic, "muxer")) {
2005 show_help_muxer(par);
2006 } else if (!strcmp(topic, "protocol")) {
2007 show_help_protocol(par);
2009 } else if (!strcmp(topic, "filter")) {
2010 show_help_filter(par);
2012 } else if (!strcmp(topic, "bsf")) {
2015 show_help_default(topic, par);
2022 int read_yesno(void)
2025 int yesno = (av_toupper(c) == 'Y');
2027 while (c != '\n' && c != EOF)
2033 FILE *get_preset_file(char *filename, size_t filename_size,
2034 const char *preset_name, int is_path,
2035 const char *codec_name)
2039 const char *base[3] = { getenv("FFMPEG_DATADIR"),
2044 av_strlcpy(filename, preset_name, filename_size);
2045 f = fopen(filename, "r");
2047 #if HAVE_GETMODULEHANDLE && defined(_WIN32)
2048 char datadir[MAX_PATH], *ls;
2051 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
2053 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
2054 if (*ls == '\\') *ls = '/';
2056 if (ls = strrchr(datadir, '/'))
2059 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
2064 for (i = 0; i < 3 && !f; i++) {
2067 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
2068 i != 1 ? "" : "/.ffmpeg", preset_name);
2069 f = fopen(filename, "r");
2070 if (!f && codec_name) {
2071 snprintf(filename, filename_size,
2072 "%s%s/%s-%s.ffpreset",
2073 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
2075 f = fopen(filename, "r");
2083 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
2085 int ret = avformat_match_stream_specifier(s, st, spec);
2087 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
2091 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
2092 AVFormatContext *s, AVStream *st, const AVCodec *codec)
2094 AVDictionary *ret = NULL;
2095 AVDictionaryEntry *t = NULL;
2096 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
2097 : AV_OPT_FLAG_DECODING_PARAM;
2099 const AVClass *cc = avcodec_get_class();
2102 codec = s->oformat ? avcodec_find_encoder(codec_id)
2103 : avcodec_find_decoder(codec_id);
2105 switch (st->codecpar->codec_type) {
2106 case AVMEDIA_TYPE_VIDEO:
2108 flags |= AV_OPT_FLAG_VIDEO_PARAM;
2110 case AVMEDIA_TYPE_AUDIO:
2112 flags |= AV_OPT_FLAG_AUDIO_PARAM;
2114 case AVMEDIA_TYPE_SUBTITLE:
2116 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
2120 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2121 const AVClass *priv_class;
2122 char *p = strchr(t->key, ':');
2124 /* check stream specification in opt name */
2126 switch (check_stream_specifier(s, st, p + 1)) {
2127 case 1: *p = 0; break;
2129 default: exit_program(1);
2132 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2134 ((priv_class = codec->priv_class) &&
2135 av_opt_find(&priv_class, t->key, NULL, flags,
2136 AV_OPT_SEARCH_FAKE_OBJ)))
2137 av_dict_set(&ret, t->key, t->value, 0);
2138 else if (t->key[0] == prefix &&
2139 av_opt_find(&cc, t->key + 1, NULL, flags,
2140 AV_OPT_SEARCH_FAKE_OBJ))
2141 av_dict_set(&ret, t->key + 1, t->value, 0);
2149 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2150 AVDictionary *codec_opts)
2153 AVDictionary **opts;
2157 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2159 av_log(NULL, AV_LOG_ERROR,
2160 "Could not alloc memory for stream options.\n");
2163 for (i = 0; i < s->nb_streams; i++)
2164 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
2165 s, s->streams[i], NULL);
2169 void *grow_array(void *array, int elem_size, int *size, int new_size)
2171 if (new_size >= INT_MAX / elem_size) {
2172 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2175 if (*size < new_size) {
2176 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2178 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2181 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2188 double get_rotation(AVStream *st)
2190 uint8_t* displaymatrix = av_stream_get_side_data(st,
2191 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2194 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2196 theta -= 360*floor(theta/360 + 0.9/360);
2198 if (fabs(theta - 90*round(theta/90)) > 2)
2199 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2200 "If you want to help, upload a sample "
2201 "of this file to https://streams.videolan.org/upload/ "
2202 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2208 static int print_device_sources(const AVInputFormat *fmt, AVDictionary *opts)
2211 AVDeviceInfoList *device_list = NULL;
2213 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2214 return AVERROR(EINVAL);
2216 printf("Auto-detected sources for %s:\n", fmt->name);
2217 if (!fmt->get_device_list) {
2218 ret = AVERROR(ENOSYS);
2219 printf("Cannot list sources. Not implemented.\n");
2223 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2224 printf("Cannot list sources.\n");
2228 for (i = 0; i < device_list->nb_devices; i++) {
2229 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2230 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2234 avdevice_free_list_devices(&device_list);
2238 static int print_device_sinks(const AVOutputFormat *fmt, AVDictionary *opts)
2241 AVDeviceInfoList *device_list = NULL;
2243 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2244 return AVERROR(EINVAL);
2246 printf("Auto-detected sinks for %s:\n", fmt->name);
2247 if (!fmt->get_device_list) {
2248 ret = AVERROR(ENOSYS);
2249 printf("Cannot list sinks. Not implemented.\n");
2253 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2254 printf("Cannot list sinks.\n");
2258 for (i = 0; i < device_list->nb_devices; i++) {
2259 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2260 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2264 avdevice_free_list_devices(&device_list);
2268 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2272 char *opts_str = NULL;
2273 av_assert0(dev && opts);
2274 *dev = av_strdup(arg);
2276 return AVERROR(ENOMEM);
2277 if ((opts_str = strchr(*dev, ','))) {
2278 *(opts_str++) = '\0';
2279 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2285 printf("\nDevice name is not provided.\n"
2286 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2290 int show_sources(void *optctx, const char *opt, const char *arg)
2292 const AVInputFormat *fmt = NULL;
2294 AVDictionary *opts = NULL;
2296 int error_level = av_log_get_level();
2298 av_log_set_level(AV_LOG_WARNING);
2300 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2304 fmt = av_input_audio_device_next(fmt);
2306 if (!strcmp(fmt->name, "lavfi"))
2307 continue; //it's pointless to probe lavfi
2308 if (dev && !av_match_name(dev, fmt->name))
2310 print_device_sources(fmt, opts);
2314 fmt = av_input_video_device_next(fmt);
2316 if (dev && !av_match_name(dev, fmt->name))
2318 print_device_sources(fmt, opts);
2322 av_dict_free(&opts);
2324 av_log_set_level(error_level);
2328 int show_sinks(void *optctx, const char *opt, const char *arg)
2330 const AVOutputFormat *fmt = NULL;
2332 AVDictionary *opts = NULL;
2334 int error_level = av_log_get_level();
2336 av_log_set_level(AV_LOG_WARNING);
2338 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2342 fmt = av_output_audio_device_next(fmt);
2344 if (dev && !av_match_name(dev, fmt->name))
2346 print_device_sinks(fmt, opts);
2350 fmt = av_output_video_device_next(fmt);
2352 if (dev && !av_match_name(dev, fmt->name))
2354 print_device_sinks(fmt, opts);
2358 av_dict_free(&opts);
2360 av_log_set_level(error_level);