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/attributes.h"
42 #include "libavutil/avassert.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/bprint.h"
45 #include "libavutil/display.h"
46 #include "libavutil/mathematics.h"
47 #include "libavutil/imgutils.h"
48 #include "libavutil/libm.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/pixdesc.h"
51 #include "libavutil/eval.h"
52 #include "libavutil/dict.h"
53 #include "libavutil/opt.h"
54 #include "libavutil/cpu.h"
55 #include "libavutil/ffversion.h"
56 #include "libavutil/version.h"
58 #if HAVE_SYS_RESOURCE_H
60 #include <sys/resource.h>
66 static int init_report(const char *env);
68 AVDictionary *sws_dict;
69 AVDictionary *swr_opts;
70 AVDictionary *format_opts, *codec_opts, *resample_opts;
72 static FILE *report_file;
73 static int report_file_level = AV_LOG_DEBUG;
76 enum show_muxdemuxers {
84 av_dict_set(&sws_dict, "flags", "bicubic", 0);
87 void uninit_opts(void)
89 av_dict_free(&swr_opts);
90 av_dict_free(&sws_dict);
91 av_dict_free(&format_opts);
92 av_dict_free(&codec_opts);
93 av_dict_free(&resample_opts);
96 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
98 vfprintf(stdout, fmt, vl);
101 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
105 static int print_prefix = 1;
108 av_log_default_callback(ptr, level, fmt, vl);
109 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
111 if (report_file_level >= level) {
112 fputs(line, report_file);
117 void init_dynload(void)
119 #if HAVE_SETDLLDIRECTORY && defined(_WIN32)
120 /* Calling SetDllDirectory with the empty string (but not NULL) removes the
121 * current working directory from the DLL search path as a security pre-caution. */
126 static void (*program_exit)(int ret);
128 void register_exit(void (*cb)(int ret))
133 void exit_program(int ret)
141 double parse_number_or_die(const char *context, const char *numstr, int type,
142 double min, double max)
146 double d = av_strtod(numstr, &tail);
148 error = "Expected number for %s but found: %s\n";
149 else if (d < min || d > max)
150 error = "The value for %s was %s which is not within %f - %f\n";
151 else if (type == OPT_INT64 && (int64_t)d != d)
152 error = "Expected int64 for %s but found %s\n";
153 else if (type == OPT_INT && (int)d != d)
154 error = "Expected int for %s but found %s\n";
157 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
162 int64_t parse_time_or_die(const char *context, const char *timestr,
166 if (av_parse_time(&us, timestr, is_duration) < 0) {
167 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
168 is_duration ? "duration" : "date", context, timestr);
174 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
175 int rej_flags, int alt_flags)
181 for (po = options; po->name; po++) {
184 if (((po->flags & req_flags) != req_flags) ||
185 (alt_flags && !(po->flags & alt_flags)) ||
186 (po->flags & rej_flags))
193 av_strlcpy(buf, po->name, sizeof(buf));
195 av_strlcat(buf, " ", sizeof(buf));
196 av_strlcat(buf, po->argname, sizeof(buf));
198 printf("-%-17s %s\n", buf, po->help);
203 void show_help_children(const AVClass *class, int flags)
206 const AVClass *child;
208 av_opt_show2(&class, NULL, flags, 0);
212 while (child = av_opt_child_class_iterate(class, &iter))
213 show_help_children(child, flags);
216 static const OptionDef *find_option(const OptionDef *po, const char *name)
218 const char *p = strchr(name, ':');
219 int len = p ? p - name : strlen(name);
222 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
229 /* _WIN32 means using the windows libc - cygwin doesn't define that
230 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
231 * it doesn't provide the actual command line via GetCommandLineW(). */
232 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
233 #include <shellapi.h>
234 /* Will be leaked on exit */
235 static char** win32_argv_utf8 = NULL;
236 static int win32_argc = 0;
239 * Prepare command line arguments for executable.
240 * For Windows - perform wide-char to UTF-8 conversion.
241 * Input arguments should be main() function arguments.
242 * @param argc_ptr Arguments number (including executable)
243 * @param argv_ptr Arguments list.
245 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
249 int i, buffsize = 0, offset = 0;
251 if (win32_argv_utf8) {
252 *argc_ptr = win32_argc;
253 *argv_ptr = win32_argv_utf8;
258 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
259 if (win32_argc <= 0 || !argv_w)
262 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
263 for (i = 0; i < win32_argc; i++)
264 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
265 NULL, 0, NULL, NULL);
267 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
268 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
269 if (!win32_argv_utf8) {
274 for (i = 0; i < win32_argc; i++) {
275 win32_argv_utf8[i] = &argstr_flat[offset];
276 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
277 &argstr_flat[offset],
278 buffsize - offset, NULL, NULL);
280 win32_argv_utf8[i] = NULL;
283 *argc_ptr = win32_argc;
284 *argv_ptr = win32_argv_utf8;
287 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
291 #endif /* HAVE_COMMANDLINETOARGVW */
293 static int write_option(void *optctx, const OptionDef *po, const char *opt,
296 /* new-style options contain an offset into optctx, old-style address of
298 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
299 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
302 if (po->flags & OPT_SPEC) {
303 SpecifierOpt **so = dst;
304 char *p = strchr(opt, ':');
307 dstcount = (int *)(so + 1);
308 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
309 str = av_strdup(p ? p + 1 : "");
311 return AVERROR(ENOMEM);
312 (*so)[*dstcount - 1].specifier = str;
313 dst = &(*so)[*dstcount - 1].u;
316 if (po->flags & OPT_STRING) {
318 str = av_strdup(arg);
321 return AVERROR(ENOMEM);
323 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
324 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
325 } else if (po->flags & OPT_INT64) {
326 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
327 } else if (po->flags & OPT_TIME) {
328 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
329 } else if (po->flags & OPT_FLOAT) {
330 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
331 } else if (po->flags & OPT_DOUBLE) {
332 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
333 } else if (po->u.func_arg) {
334 int ret = po->u.func_arg(optctx, opt, arg);
336 av_log(NULL, AV_LOG_ERROR,
337 "Failed to set value '%s' for option '%s': %s\n",
338 arg, opt, av_err2str(ret));
342 if (po->flags & OPT_EXIT)
348 int parse_option(void *optctx, const char *opt, const char *arg,
349 const OptionDef *options)
354 po = find_option(options, opt);
355 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
356 /* handle 'no' bool option */
357 po = find_option(options, opt + 2);
358 if ((po->name && (po->flags & OPT_BOOL)))
360 } else if (po->flags & OPT_BOOL)
364 po = find_option(options, "default");
366 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
367 return AVERROR(EINVAL);
369 if (po->flags & HAS_ARG && !arg) {
370 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
371 return AVERROR(EINVAL);
374 ret = write_option(optctx, po, opt, arg);
378 return !!(po->flags & HAS_ARG);
381 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
382 void (*parse_arg_function)(void *, const char*))
385 int optindex, handleoptions = 1, ret;
387 /* perform system-dependent conversions for arguments list */
388 prepare_app_arguments(&argc, &argv);
392 while (optindex < argc) {
393 opt = argv[optindex++];
395 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
396 if (opt[1] == '-' && opt[2] == '\0') {
402 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
406 if (parse_arg_function)
407 parse_arg_function(optctx, opt);
412 int parse_optgroup(void *optctx, OptionGroup *g)
416 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
417 g->group_def->name, g->arg);
419 for (i = 0; i < g->nb_opts; i++) {
420 Option *o = &g->opts[i];
422 if (g->group_def->flags &&
423 !(g->group_def->flags & o->opt->flags)) {
424 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
425 "%s %s -- you are trying to apply an input option to an "
426 "output file or vice versa. Move this option before the "
427 "file it belongs to.\n", o->key, o->opt->help,
428 g->group_def->name, g->arg);
429 return AVERROR(EINVAL);
432 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
433 o->key, o->opt->help, o->val);
435 ret = write_option(optctx, o->opt, o->key, o->val);
440 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
445 int locate_option(int argc, char **argv, const OptionDef *options,
451 for (i = 1; i < argc; i++) {
452 const char *cur_opt = argv[i];
454 if (*cur_opt++ != '-')
457 po = find_option(options, cur_opt);
458 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
459 po = find_option(options, cur_opt + 2);
461 if ((!po->name && !strcmp(cur_opt, optname)) ||
462 (po->name && !strcmp(optname, po->name)))
465 if (!po->name || po->flags & HAS_ARG)
471 static void dump_argument(const char *a)
473 const unsigned char *p;
476 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
477 *p == '_' || (*p >= 'a' && *p <= 'z')))
480 fputs(a, report_file);
483 fputc('"', report_file);
484 for (p = a; *p; p++) {
485 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
486 fprintf(report_file, "\\%c", *p);
487 else if (*p < ' ' || *p > '~')
488 fprintf(report_file, "\\x%02x", *p);
490 fputc(*p, report_file);
492 fputc('"', report_file);
495 static void check_options(const OptionDef *po)
498 if (po->flags & OPT_PERFILE)
499 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
504 void parse_loglevel(int argc, char **argv, const OptionDef *options)
506 int idx = locate_option(argc, argv, options, "loglevel");
509 check_options(options);
512 idx = locate_option(argc, argv, options, "v");
513 if (idx && argv[idx + 1])
514 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
515 idx = locate_option(argc, argv, options, "report");
516 if ((env = getenv("FFREPORT")) || idx) {
520 fprintf(report_file, "Command line:\n");
521 for (i = 0; i < argc; i++) {
522 dump_argument(argv[i]);
523 fputc(i < argc - 1 ? ' ' : '\n', report_file);
528 idx = locate_option(argc, argv, options, "hide_banner");
533 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
534 int opt_flags, int search_flags)
536 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
542 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
543 int opt_default(void *optctx, const char *opt, const char *arg)
547 char opt_stripped[128];
549 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
550 #if CONFIG_AVRESAMPLE
551 const AVClass *rc = avresample_get_class();
554 const AVClass *sc = sws_get_class();
556 #if CONFIG_SWRESAMPLE
557 const AVClass *swr_class = swr_get_class();
560 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
561 av_log_set_level(AV_LOG_DEBUG);
563 if (!(p = strchr(opt, ':')))
564 p = opt + strlen(opt);
565 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
567 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
568 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
569 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
570 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
571 av_dict_set(&codec_opts, opt, arg, FLAGS);
574 if ((o = opt_find(&fc, opt, NULL, 0,
575 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
576 av_dict_set(&format_opts, opt, arg, FLAGS);
578 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
582 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
583 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
584 struct SwsContext *sws = sws_alloc_context();
585 int ret = av_opt_set(sws, opt, arg, 0);
586 sws_freeContext(sws);
587 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
588 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
589 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
590 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
591 return AVERROR(EINVAL);
594 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
598 av_dict_set(&sws_dict, opt, arg, FLAGS);
603 if (!consumed && !strcmp(opt, "sws_flags")) {
604 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
608 #if CONFIG_SWRESAMPLE
609 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
610 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
611 struct SwrContext *swr = swr_alloc();
612 int ret = av_opt_set(swr, opt, arg, 0);
615 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
618 av_dict_set(&swr_opts, opt, arg, FLAGS);
622 #if CONFIG_AVRESAMPLE
623 if ((o=opt_find(&rc, opt, NULL, 0,
624 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
625 av_dict_set(&resample_opts, opt, arg, FLAGS);
632 return AVERROR_OPTION_NOT_FOUND;
636 * Check whether given option is a group separator.
638 * @return index of the group definition that matched or -1 if none
640 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
645 for (i = 0; i < nb_groups; i++) {
646 const OptionGroupDef *p = &groups[i];
647 if (p->sep && !strcmp(p->sep, opt))
655 * Finish parsing an option group.
657 * @param group_idx which group definition should this group belong to
658 * @param arg argument of the group delimiting option
660 static void finish_group(OptionParseContext *octx, int group_idx,
663 OptionGroupList *l = &octx->groups[group_idx];
666 GROW_ARRAY(l->groups, l->nb_groups);
667 g = &l->groups[l->nb_groups - 1];
669 *g = octx->cur_group;
671 g->group_def = l->group_def;
672 g->sws_dict = sws_dict;
673 g->swr_opts = swr_opts;
674 g->codec_opts = codec_opts;
675 g->format_opts = format_opts;
676 g->resample_opts = resample_opts;
680 resample_opts = NULL;
685 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
689 * Add an option instance to currently parsed group.
691 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
692 const char *key, const char *val)
694 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
695 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
697 GROW_ARRAY(g->opts, g->nb_opts);
698 g->opts[g->nb_opts - 1].opt = opt;
699 g->opts[g->nb_opts - 1].key = key;
700 g->opts[g->nb_opts - 1].val = val;
703 static void init_parse_context(OptionParseContext *octx,
704 const OptionGroupDef *groups, int nb_groups)
706 static const OptionGroupDef global_group = { "global" };
709 memset(octx, 0, sizeof(*octx));
711 octx->nb_groups = nb_groups;
712 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
716 for (i = 0; i < octx->nb_groups; i++)
717 octx->groups[i].group_def = &groups[i];
719 octx->global_opts.group_def = &global_group;
720 octx->global_opts.arg = "";
725 void uninit_parse_context(OptionParseContext *octx)
729 for (i = 0; i < octx->nb_groups; i++) {
730 OptionGroupList *l = &octx->groups[i];
732 for (j = 0; j < l->nb_groups; j++) {
733 av_freep(&l->groups[j].opts);
734 av_dict_free(&l->groups[j].codec_opts);
735 av_dict_free(&l->groups[j].format_opts);
736 av_dict_free(&l->groups[j].resample_opts);
738 av_dict_free(&l->groups[j].sws_dict);
739 av_dict_free(&l->groups[j].swr_opts);
741 av_freep(&l->groups);
743 av_freep(&octx->groups);
745 av_freep(&octx->cur_group.opts);
746 av_freep(&octx->global_opts.opts);
751 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
752 const OptionDef *options,
753 const OptionGroupDef *groups, int nb_groups)
758 /* perform system-dependent conversions for arguments list */
759 prepare_app_arguments(&argc, &argv);
761 init_parse_context(octx, groups, nb_groups);
762 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
764 while (optindex < argc) {
765 const char *opt = argv[optindex++], *arg;
769 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
771 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
775 /* unnamed group separators, e.g. output filename */
776 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
777 finish_group(octx, 0, opt);
778 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
783 #define GET_ARG(arg) \
785 arg = argv[optindex++]; \
787 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
788 return AVERROR(EINVAL); \
792 /* named group separators, e.g. -i */
793 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
795 finish_group(octx, ret, arg);
796 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
797 groups[ret].name, arg);
802 po = find_option(options, opt);
804 if (po->flags & OPT_EXIT) {
805 /* optional argument, e.g. -h */
806 arg = argv[optindex++];
807 } else if (po->flags & HAS_ARG) {
813 add_opt(octx, po, opt, arg);
814 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
815 "argument '%s'.\n", po->name, po->help, arg);
820 if (argv[optindex]) {
821 ret = opt_default(NULL, opt, argv[optindex]);
823 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
824 "argument '%s'.\n", opt, argv[optindex]);
827 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
828 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
829 "with argument '%s'.\n", opt, argv[optindex]);
834 /* boolean -nofoo options */
835 if (opt[0] == 'n' && opt[1] == 'o' &&
836 (po = find_option(options, opt + 2)) &&
837 po->name && po->flags & OPT_BOOL) {
838 add_opt(octx, po, opt, "0");
839 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
840 "argument 0.\n", po->name, po->help);
844 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
845 return AVERROR_OPTION_NOT_FOUND;
848 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
849 av_log(NULL, AV_LOG_WARNING, "Trailing option(s) found in the "
850 "command: may be ignored.\n");
852 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
857 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
860 unsigned flags = av_get_cpu_flags();
862 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
865 av_force_cpu_flags(flags);
869 int opt_loglevel(void *optctx, const char *opt, const char *arg)
871 const struct { const char *name; int level; } log_levels[] = {
872 { "quiet" , AV_LOG_QUIET },
873 { "panic" , AV_LOG_PANIC },
874 { "fatal" , AV_LOG_FATAL },
875 { "error" , AV_LOG_ERROR },
876 { "warning", AV_LOG_WARNING },
877 { "info" , AV_LOG_INFO },
878 { "verbose", AV_LOG_VERBOSE },
879 { "debug" , AV_LOG_DEBUG },
880 { "trace" , AV_LOG_TRACE },
884 int flags = av_log_get_flags();
885 int level = av_log_get_level();
891 if (*token == '+' || *token == '-') {
897 flags = 0; /* missing relative prefix, build absolute value */
899 if (!strncmp(token, "repeat", 6)) {
901 flags |= AV_LOG_SKIP_REPEATED;
903 flags &= ~AV_LOG_SKIP_REPEATED;
906 } else if (!strncmp(token, "level", 5)) {
908 flags &= ~AV_LOG_PRINT_LEVEL;
910 flags |= AV_LOG_PRINT_LEVEL;
920 } else if (*arg == '+') {
923 flags = av_log_get_flags(); /* level value without prefix, reset flags */
926 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
927 if (!strcmp(log_levels[i].name, arg)) {
928 level = log_levels[i].level;
933 level = strtol(arg, &tail, 10);
935 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
936 "Possible levels are numbers or:\n", arg);
937 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
938 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
943 av_log_set_flags(flags);
944 av_log_set_level(level);
948 static void expand_filename_template(AVBPrint *bp, const char *template,
953 while ((c = *(template++))) {
955 if (!(c = *(template++)))
959 av_bprintf(bp, "%s", program_name);
962 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
963 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
964 tm->tm_hour, tm->tm_min, tm->tm_sec);
967 av_bprint_chars(bp, c, 1);
971 av_bprint_chars(bp, c, 1);
976 static int init_report(const char *env)
978 char *filename_template = NULL;
981 int prog_loglevel, envlevel = 0;
986 if (report_file) /* already opened */
989 tm = localtime(&now);
991 while (env && *env) {
992 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
994 av_log(NULL, AV_LOG_ERROR,
995 "Failed to parse FFREPORT environment variable: %s\n",
1002 if (!strcmp(key, "file")) {
1003 av_free(filename_template);
1004 filename_template = val;
1006 } else if (!strcmp(key, "level")) {
1008 report_file_level = strtol(val, &tail, 10);
1010 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
1015 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
1021 av_bprint_init(&filename, 0, AV_BPRINT_SIZE_AUTOMATIC);
1022 expand_filename_template(&filename,
1023 av_x_if_null(filename_template, "%p-%t.log"), tm);
1024 av_free(filename_template);
1025 if (!av_bprint_is_complete(&filename)) {
1026 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
1027 return AVERROR(ENOMEM);
1030 prog_loglevel = av_log_get_level();
1032 report_file_level = FFMAX(report_file_level, prog_loglevel);
1034 report_file = fopen(filename.str, "w");
1036 int ret = AVERROR(errno);
1037 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
1038 filename.str, strerror(errno));
1041 av_log_set_callback(log_callback_report);
1042 av_log(NULL, AV_LOG_INFO,
1043 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
1044 "Report written to \"%s\"\n"
1047 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
1048 tm->tm_hour, tm->tm_min, tm->tm_sec,
1049 filename.str, report_file_level);
1050 av_bprint_finalize(&filename, NULL);
1054 int opt_report(void *optctx, const char *opt, const char *arg)
1056 return init_report(NULL);
1059 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1064 max = strtol(arg, &tail, 10);
1066 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1073 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1076 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1077 struct rlimit rl = { lim, lim + 1 };
1078 if (setrlimit(RLIMIT_CPU, &rl))
1079 perror("setrlimit");
1081 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1086 void print_error(const char *filename, int err)
1089 const char *errbuf_ptr = errbuf;
1091 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1092 errbuf_ptr = strerror(AVUNERROR(err));
1093 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1096 static int warned_cfg = 0;
1099 #define SHOW_VERSION 2
1100 #define SHOW_CONFIG 4
1101 #define SHOW_COPYRIGHT 8
1103 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1104 if (CONFIG_##LIBNAME) { \
1105 const char *indent = flags & INDENT? " " : ""; \
1106 if (flags & SHOW_VERSION) { \
1107 unsigned int version = libname##_version(); \
1108 av_log(NULL, level, \
1109 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1111 LIB##LIBNAME##_VERSION_MAJOR, \
1112 LIB##LIBNAME##_VERSION_MINOR, \
1113 LIB##LIBNAME##_VERSION_MICRO, \
1114 AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1115 AV_VERSION_MICRO(version)); \
1117 if (flags & SHOW_CONFIG) { \
1118 const char *cfg = libname##_configuration(); \
1119 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1120 if (!warned_cfg) { \
1121 av_log(NULL, level, \
1122 "%sWARNING: library configuration mismatch\n", \
1126 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1127 indent, #libname, cfg); \
1132 static void print_all_libs_info(int flags, int level)
1134 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1135 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1136 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1137 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1138 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1139 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1140 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1141 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1142 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1145 static void print_program_info(int flags, int level)
1147 const char *indent = flags & INDENT? " " : "";
1149 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1150 if (flags & SHOW_COPYRIGHT)
1151 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1152 program_birth_year, CONFIG_THIS_YEAR);
1153 av_log(NULL, level, "\n");
1154 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1156 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1159 static void print_buildconf(int flags, int level)
1161 const char *indent = flags & INDENT ? " " : "";
1162 char str[] = { FFMPEG_CONFIGURATION };
1163 char *conflist, *remove_tilde, *splitconf;
1165 // Change all the ' --' strings to '~--' so that
1166 // they can be identified as tokens.
1167 while ((conflist = strstr(str, " --")) != NULL) {
1168 strncpy(conflist, "~--", 3);
1171 // Compensate for the weirdness this would cause
1172 // when passing 'pkg-config --static'.
1173 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1174 strncpy(remove_tilde, "pkg-config ", 11);
1177 splitconf = strtok(str, "~");
1178 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1179 while (splitconf != NULL) {
1180 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1181 splitconf = strtok(NULL, "~");
1185 void show_banner(int argc, char **argv, const OptionDef *options)
1187 int idx = locate_option(argc, argv, options, "version");
1188 if (hide_banner || idx)
1191 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1192 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1193 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1196 int show_version(void *optctx, const char *opt, const char *arg)
1198 av_log_set_callback(log_callback_help);
1199 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1200 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1205 int show_buildconf(void *optctx, const char *opt, const char *arg)
1207 av_log_set_callback(log_callback_help);
1208 print_buildconf (INDENT|0, AV_LOG_INFO);
1213 int show_license(void *optctx, const char *opt, const char *arg)
1217 "This version of %s has nonfree parts compiled in.\n"
1218 "Therefore it is not legally redistributable.\n",
1222 "%s is free software; you can redistribute it and/or modify\n"
1223 "it under the terms of the GNU General Public License as published by\n"
1224 "the Free Software Foundation; either version 3 of the License, or\n"
1225 "(at your option) any later version.\n"
1227 "%s is distributed in the hope that it will be useful,\n"
1228 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1229 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1230 "GNU General Public License for more details.\n"
1232 "You should have received a copy of the GNU General Public License\n"
1233 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1234 program_name, program_name, program_name );
1237 "%s is free software; you can redistribute it and/or modify\n"
1238 "it under the terms of the GNU General Public License as published by\n"
1239 "the Free Software Foundation; either version 2 of the License, or\n"
1240 "(at your option) any later version.\n"
1242 "%s is distributed in the hope that it will be useful,\n"
1243 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1244 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1245 "GNU General Public License for more details.\n"
1247 "You should have received a copy of the GNU General Public License\n"
1248 "along with %s; if not, write to the Free Software\n"
1249 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1250 program_name, program_name, program_name );
1253 "%s is free software; you can redistribute it and/or modify\n"
1254 "it under the terms of the GNU Lesser General Public License as published by\n"
1255 "the Free Software Foundation; either version 3 of the License, or\n"
1256 "(at your option) any later version.\n"
1258 "%s is distributed in the hope that it will be useful,\n"
1259 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1260 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1261 "GNU Lesser General Public License for more details.\n"
1263 "You should have received a copy of the GNU Lesser General Public License\n"
1264 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1265 program_name, program_name, program_name );
1268 "%s is free software; you can redistribute it and/or\n"
1269 "modify it under the terms of the GNU Lesser General Public\n"
1270 "License as published by the Free Software Foundation; either\n"
1271 "version 2.1 of the License, or (at your option) any later version.\n"
1273 "%s is distributed in the hope that it will be useful,\n"
1274 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1275 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1276 "Lesser General Public License for more details.\n"
1278 "You should have received a copy of the GNU Lesser General Public\n"
1279 "License along with %s; if not, write to the Free Software\n"
1280 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1281 program_name, program_name, program_name );
1287 static int is_device(const AVClass *avclass)
1291 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1294 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only, int muxdemuxers)
1296 void *ifmt_opaque = NULL;
1297 const AVInputFormat *ifmt = NULL;
1298 void *ofmt_opaque = NULL;
1299 const AVOutputFormat *ofmt = NULL;
1300 const char *last_name;
1304 " D. = Demuxing supported\n"
1305 " .E = Muxing supported\n"
1306 " --\n", device_only ? "Devices:" : "File formats:");
1311 const char *name = NULL;
1312 const char *long_name = NULL;
1314 if (muxdemuxers !=SHOW_DEMUXERS) {
1316 while ((ofmt = av_muxer_iterate(&ofmt_opaque))) {
1317 is_dev = is_device(ofmt->priv_class);
1318 if (!is_dev && device_only)
1320 if ((!name || strcmp(ofmt->name, name) < 0) &&
1321 strcmp(ofmt->name, last_name) > 0) {
1323 long_name = ofmt->long_name;
1328 if (muxdemuxers != SHOW_MUXERS) {
1330 while ((ifmt = av_demuxer_iterate(&ifmt_opaque))) {
1331 is_dev = is_device(ifmt->priv_class);
1332 if (!is_dev && device_only)
1334 if ((!name || strcmp(ifmt->name, name) < 0) &&
1335 strcmp(ifmt->name, last_name) > 0) {
1337 long_name = ifmt->long_name;
1340 if (name && strcmp(ifmt->name, name) == 0)
1348 printf(" %s%s %-15s %s\n",
1352 long_name ? long_name:" ");
1357 int show_formats(void *optctx, const char *opt, const char *arg)
1359 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEFAULT);
1362 int show_muxers(void *optctx, const char *opt, const char *arg)
1364 return show_formats_devices(optctx, opt, arg, 0, SHOW_MUXERS);
1367 int show_demuxers(void *optctx, const char *opt, const char *arg)
1369 return show_formats_devices(optctx, opt, arg, 0, SHOW_DEMUXERS);
1372 int show_devices(void *optctx, const char *opt, const char *arg)
1374 return show_formats_devices(optctx, opt, arg, 1, SHOW_DEFAULT);
1377 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1378 if (codec->field) { \
1379 const type *p = codec->field; \
1381 printf(" Supported " list_name ":"); \
1382 while (*p != term) { \
1384 printf(" %s", name); \
1390 static void print_codec(const AVCodec *c)
1392 int encoder = av_codec_is_encoder(c);
1394 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1395 c->long_name ? c->long_name : "");
1397 printf(" General capabilities: ");
1398 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1399 printf("horizband ");
1400 if (c->capabilities & AV_CODEC_CAP_DR1)
1402 if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1404 if (c->capabilities & AV_CODEC_CAP_DELAY)
1406 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1408 if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1409 printf("subframes ");
1410 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1412 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1414 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1415 printf("paramchange ");
1416 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1417 printf("variable ");
1418 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1419 AV_CODEC_CAP_SLICE_THREADS |
1420 AV_CODEC_CAP_AUTO_THREADS))
1422 if (c->capabilities & AV_CODEC_CAP_AVOID_PROBING)
1423 printf("avoidprobe ");
1424 if (c->capabilities & AV_CODEC_CAP_HARDWARE)
1425 printf("hardware ");
1426 if (c->capabilities & AV_CODEC_CAP_HYBRID)
1428 if (!c->capabilities)
1432 if (c->type == AVMEDIA_TYPE_VIDEO ||
1433 c->type == AVMEDIA_TYPE_AUDIO) {
1434 printf(" Threading capabilities: ");
1435 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1436 AV_CODEC_CAP_SLICE_THREADS |
1437 AV_CODEC_CAP_AUTO_THREADS)) {
1438 case AV_CODEC_CAP_FRAME_THREADS |
1439 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1440 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1441 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1442 case AV_CODEC_CAP_AUTO_THREADS : printf("auto"); break;
1443 default: printf("none"); break;
1448 if (avcodec_get_hw_config(c, 0)) {
1449 printf(" Supported hardware devices: ");
1450 for (int i = 0;; i++) {
1451 const AVCodecHWConfig *config = avcodec_get_hw_config(c, i);
1454 printf("%s ", av_hwdevice_get_type_name(config->device_type));
1459 if (c->supported_framerates) {
1460 const AVRational *fps = c->supported_framerates;
1462 printf(" Supported framerates:");
1464 printf(" %d/%d", fps->num, fps->den);
1469 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1470 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1471 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1472 GET_SAMPLE_RATE_NAME);
1473 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1474 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1475 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1476 0, GET_CH_LAYOUT_DESC);
1478 if (c->priv_class) {
1479 show_help_children(c->priv_class,
1480 AV_OPT_FLAG_ENCODING_PARAM |
1481 AV_OPT_FLAG_DECODING_PARAM);
1485 static char get_media_type_char(enum AVMediaType type)
1488 case AVMEDIA_TYPE_VIDEO: return 'V';
1489 case AVMEDIA_TYPE_AUDIO: return 'A';
1490 case AVMEDIA_TYPE_DATA: return 'D';
1491 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1492 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1493 default: return '?';
1497 static const AVCodec *next_codec_for_id(enum AVCodecID id, void **iter,
1501 while ((c = av_codec_iterate(iter))) {
1503 (encoder ? av_codec_is_encoder(c) : av_codec_is_decoder(c)))
1509 static int compare_codec_desc(const void *a, const void *b)
1511 const AVCodecDescriptor * const *da = a;
1512 const AVCodecDescriptor * const *db = b;
1514 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1515 strcmp((*da)->name, (*db)->name);
1518 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1520 const AVCodecDescriptor *desc = NULL;
1521 const AVCodecDescriptor **codecs;
1522 unsigned nb_codecs = 0, i = 0;
1524 while ((desc = avcodec_descriptor_next(desc)))
1526 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1527 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1531 while ((desc = avcodec_descriptor_next(desc)))
1533 av_assert0(i == nb_codecs);
1534 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1539 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1542 const AVCodec *codec;
1544 printf(" (%s: ", encoder ? "encoders" : "decoders");
1546 while ((codec = next_codec_for_id(id, &iter, encoder)))
1547 printf("%s ", codec->name);
1552 int show_codecs(void *optctx, const char *opt, const char *arg)
1554 const AVCodecDescriptor **codecs;
1555 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1558 " D..... = Decoding supported\n"
1559 " .E.... = Encoding supported\n"
1560 " ..V... = Video codec\n"
1561 " ..A... = Audio codec\n"
1562 " ..S... = Subtitle codec\n"
1563 " ...I.. = Intra frame-only codec\n"
1564 " ....L. = Lossy compression\n"
1565 " .....S = Lossless compression\n"
1567 for (i = 0; i < nb_codecs; i++) {
1568 const AVCodecDescriptor *desc = codecs[i];
1569 const AVCodec *codec;
1572 if (strstr(desc->name, "_deprecated"))
1576 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1577 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1579 printf("%c", get_media_type_char(desc->type));
1580 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1581 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1582 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1584 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1586 /* print decoders/encoders when there's more than one or their
1587 * names are different from codec name */
1588 while ((codec = next_codec_for_id(desc->id, &iter, 0))) {
1589 if (strcmp(codec->name, desc->name)) {
1590 print_codecs_for_id(desc->id, 0);
1595 while ((codec = next_codec_for_id(desc->id, &iter, 1))) {
1596 if (strcmp(codec->name, desc->name)) {
1597 print_codecs_for_id(desc->id, 1);
1608 static void print_codecs(int encoder)
1610 const AVCodecDescriptor **codecs;
1611 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1616 " S..... = Subtitle\n"
1617 " .F.... = Frame-level multithreading\n"
1618 " ..S... = Slice-level multithreading\n"
1619 " ...X.. = Codec is experimental\n"
1620 " ....B. = Supports draw_horiz_band\n"
1621 " .....D = Supports direct rendering method 1\n"
1623 encoder ? "Encoders" : "Decoders");
1624 for (i = 0; i < nb_codecs; i++) {
1625 const AVCodecDescriptor *desc = codecs[i];
1626 const AVCodec *codec;
1629 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
1630 printf(" %c", get_media_type_char(desc->type));
1631 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1632 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1633 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1634 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1635 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1637 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1638 if (strcmp(codec->name, desc->name))
1639 printf(" (codec %s)", desc->name);
1647 int show_decoders(void *optctx, const char *opt, const char *arg)
1653 int show_encoders(void *optctx, const char *opt, const char *arg)
1659 int show_bsfs(void *optctx, const char *opt, const char *arg)
1661 const AVBitStreamFilter *bsf = NULL;
1662 void *opaque = NULL;
1664 printf("Bitstream filters:\n");
1665 while ((bsf = av_bsf_iterate(&opaque)))
1666 printf("%s\n", bsf->name);
1671 int show_protocols(void *optctx, const char *opt, const char *arg)
1673 void *opaque = NULL;
1676 printf("Supported file protocols:\n"
1678 while ((name = avio_enum_protocols(&opaque, 0)))
1679 printf(" %s\n", name);
1680 printf("Output:\n");
1681 while ((name = avio_enum_protocols(&opaque, 1)))
1682 printf(" %s\n", name);
1686 int show_filters(void *optctx, const char *opt, const char *arg)
1689 const AVFilter *filter = NULL;
1690 char descr[64], *descr_cur;
1691 void *opaque = NULL;
1693 const AVFilterPad *pad;
1696 " T.. = Timeline support\n"
1697 " .S. = Slice threading\n"
1698 " ..C = Command support\n"
1699 " A = Audio input/output\n"
1700 " V = Video input/output\n"
1701 " N = Dynamic number and/or type of input/output\n"
1702 " | = Source or sink filter\n");
1703 while ((filter = av_filter_iterate(&opaque))) {
1705 for (i = 0; i < 2; i++) {
1707 *(descr_cur++) = '-';
1708 *(descr_cur++) = '>';
1710 pad = i ? filter->outputs : filter->inputs;
1711 for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1712 if (descr_cur >= descr + sizeof(descr) - 4)
1714 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1717 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1718 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1721 printf(" %c%c%c %-17s %-10s %s\n",
1722 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1723 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1724 filter->process_command ? 'C' : '.',
1725 filter->name, descr, filter->description);
1728 printf("No filters available: libavfilter disabled\n");
1733 int show_colors(void *optctx, const char *opt, const char *arg)
1739 printf("%-32s #RRGGBB\n", "name");
1741 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1742 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1747 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1749 const AVPixFmtDescriptor *pix_desc = NULL;
1751 printf("Pixel formats:\n"
1752 "I.... = Supported Input format for conversion\n"
1753 ".O... = Supported Output format for conversion\n"
1754 "..H.. = Hardware accelerated format\n"
1755 "...P. = Paletted format\n"
1756 "....B = Bitstream format\n"
1757 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1761 # define sws_isSupportedInput(x) 0
1762 # define sws_isSupportedOutput(x) 0
1765 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1766 enum AVPixelFormat av_unused pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1767 printf("%c%c%c%c%c %-16s %d %2d\n",
1768 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1769 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1770 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1771 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1772 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1774 pix_desc->nb_components,
1775 av_get_bits_per_pixel(pix_desc));
1780 int show_layouts(void *optctx, const char *opt, const char *arg)
1784 const char *name, *descr;
1786 printf("Individual channels:\n"
1787 "NAME DESCRIPTION\n");
1788 for (i = 0; i < 63; i++) {
1789 name = av_get_channel_name((uint64_t)1 << i);
1792 descr = av_get_channel_description((uint64_t)1 << i);
1793 printf("%-14s %s\n", name, descr);
1795 printf("\nStandard channel layouts:\n"
1796 "NAME DECOMPOSITION\n");
1797 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1799 printf("%-14s ", name);
1800 for (j = 1; j; j <<= 1)
1802 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1809 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1813 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1814 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1818 static void show_help_codec(const char *name, int encoder)
1820 const AVCodecDescriptor *desc;
1821 const AVCodec *codec;
1824 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1828 codec = encoder ? avcodec_find_encoder_by_name(name) :
1829 avcodec_find_decoder_by_name(name);
1833 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1837 while ((codec = next_codec_for_id(desc->id, &iter, encoder))) {
1843 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1844 "but no %s for it are available. FFmpeg might need to be "
1845 "recompiled with additional external libraries.\n",
1846 name, encoder ? "encoders" : "decoders");
1849 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1854 static void show_help_demuxer(const char *name)
1856 const AVInputFormat *fmt = av_find_input_format(name);
1859 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1863 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1865 if (fmt->extensions)
1866 printf(" Common extensions: %s.\n", fmt->extensions);
1868 if (fmt->priv_class)
1869 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1872 static void show_help_protocol(const char *name)
1874 const AVClass *proto_class;
1877 av_log(NULL, AV_LOG_ERROR, "No protocol name specified.\n");
1881 proto_class = avio_protocol_get_class(name);
1883 av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
1887 show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
1890 static void show_help_muxer(const char *name)
1892 const AVCodecDescriptor *desc;
1893 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1896 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1900 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1902 if (fmt->extensions)
1903 printf(" Common extensions: %s.\n", fmt->extensions);
1905 printf(" Mime type: %s.\n", fmt->mime_type);
1906 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1907 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1908 printf(" Default video codec: %s.\n", desc->name);
1910 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1911 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1912 printf(" Default audio codec: %s.\n", desc->name);
1914 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1915 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1916 printf(" Default subtitle codec: %s.\n", desc->name);
1919 if (fmt->priv_class)
1920 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1924 static void show_help_filter(const char *name)
1927 const AVFilter *f = avfilter_get_by_name(name);
1931 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1934 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1938 printf("Filter %s\n", f->name);
1940 printf(" %s\n", f->description);
1942 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1943 printf(" slice threading supported\n");
1945 printf(" Inputs:\n");
1946 count = avfilter_pad_count(f->inputs);
1947 for (i = 0; i < count; i++) {
1948 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1949 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1951 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1952 printf(" dynamic (depending on the options)\n");
1954 printf(" none (source filter)\n");
1956 printf(" Outputs:\n");
1957 count = avfilter_pad_count(f->outputs);
1958 for (i = 0; i < count; i++) {
1959 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1960 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1962 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1963 printf(" dynamic (depending on the options)\n");
1965 printf(" none (sink filter)\n");
1968 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1969 AV_OPT_FLAG_AUDIO_PARAM);
1970 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1971 printf("This filter has support for timeline through the 'enable' option.\n");
1973 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1974 "can not to satisfy request\n");
1979 static void show_help_bsf(const char *name)
1981 const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
1984 av_log(NULL, AV_LOG_ERROR, "No bitstream filter name specified.\n");
1987 av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
1991 printf("Bit stream filter %s\n", bsf->name);
1992 PRINT_CODEC_SUPPORTED(bsf, codec_ids, enum AVCodecID, "codecs",
1993 AV_CODEC_ID_NONE, GET_CODEC_NAME);
1994 if (bsf->priv_class)
1995 show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
1998 int show_help(void *optctx, const char *opt, const char *arg)
2001 av_log_set_callback(log_callback_help);
2003 topic = av_strdup(arg ? arg : "");
2005 return AVERROR(ENOMEM);
2006 par = strchr(topic, '=');
2011 show_help_default(topic, par);
2012 } else if (!strcmp(topic, "decoder")) {
2013 show_help_codec(par, 0);
2014 } else if (!strcmp(topic, "encoder")) {
2015 show_help_codec(par, 1);
2016 } else if (!strcmp(topic, "demuxer")) {
2017 show_help_demuxer(par);
2018 } else if (!strcmp(topic, "muxer")) {
2019 show_help_muxer(par);
2020 } else if (!strcmp(topic, "protocol")) {
2021 show_help_protocol(par);
2023 } else if (!strcmp(topic, "filter")) {
2024 show_help_filter(par);
2026 } else if (!strcmp(topic, "bsf")) {
2029 show_help_default(topic, par);
2036 int read_yesno(void)
2039 int yesno = (av_toupper(c) == 'Y');
2041 while (c != '\n' && c != EOF)
2047 FILE *get_preset_file(char *filename, size_t filename_size,
2048 const char *preset_name, int is_path,
2049 const char *codec_name)
2053 const char *base[3] = { getenv("FFMPEG_DATADIR"),
2058 av_strlcpy(filename, preset_name, filename_size);
2059 f = fopen(filename, "r");
2061 #if HAVE_GETMODULEHANDLE && defined(_WIN32)
2062 char datadir[MAX_PATH], *ls;
2065 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
2067 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
2068 if (*ls == '\\') *ls = '/';
2070 if (ls = strrchr(datadir, '/'))
2073 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
2078 for (i = 0; i < 3 && !f; i++) {
2081 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
2082 i != 1 ? "" : "/.ffmpeg", preset_name);
2083 f = fopen(filename, "r");
2084 if (!f && codec_name) {
2085 snprintf(filename, filename_size,
2086 "%s%s/%s-%s.ffpreset",
2087 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
2089 f = fopen(filename, "r");
2097 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
2099 int ret = avformat_match_stream_specifier(s, st, spec);
2101 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
2105 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
2106 AVFormatContext *s, AVStream *st, AVCodec *codec)
2108 AVDictionary *ret = NULL;
2109 AVDictionaryEntry *t = NULL;
2110 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
2111 : AV_OPT_FLAG_DECODING_PARAM;
2113 const AVClass *cc = avcodec_get_class();
2116 codec = s->oformat ? avcodec_find_encoder(codec_id)
2117 : avcodec_find_decoder(codec_id);
2119 switch (st->codecpar->codec_type) {
2120 case AVMEDIA_TYPE_VIDEO:
2122 flags |= AV_OPT_FLAG_VIDEO_PARAM;
2124 case AVMEDIA_TYPE_AUDIO:
2126 flags |= AV_OPT_FLAG_AUDIO_PARAM;
2128 case AVMEDIA_TYPE_SUBTITLE:
2130 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
2134 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2135 char *p = strchr(t->key, ':');
2137 /* check stream specification in opt name */
2139 switch (check_stream_specifier(s, st, p + 1)) {
2140 case 1: *p = 0; break;
2142 default: exit_program(1);
2145 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2147 (codec->priv_class &&
2148 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2149 AV_OPT_SEARCH_FAKE_OBJ)))
2150 av_dict_set(&ret, t->key, t->value, 0);
2151 else if (t->key[0] == prefix &&
2152 av_opt_find(&cc, t->key + 1, NULL, flags,
2153 AV_OPT_SEARCH_FAKE_OBJ))
2154 av_dict_set(&ret, t->key + 1, t->value, 0);
2162 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2163 AVDictionary *codec_opts)
2166 AVDictionary **opts;
2170 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2172 av_log(NULL, AV_LOG_ERROR,
2173 "Could not alloc memory for stream options.\n");
2176 for (i = 0; i < s->nb_streams; i++)
2177 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codecpar->codec_id,
2178 s, s->streams[i], NULL);
2182 void *grow_array(void *array, int elem_size, int *size, int new_size)
2184 if (new_size >= INT_MAX / elem_size) {
2185 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2188 if (*size < new_size) {
2189 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2191 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2194 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2201 double get_rotation(AVStream *st)
2203 uint8_t* displaymatrix = av_stream_get_side_data(st,
2204 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2207 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2209 theta -= 360*floor(theta/360 + 0.9/360);
2211 if (fabs(theta - 90*round(theta/90)) > 2)
2212 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2213 "If you want to help, upload a sample "
2214 "of this file to https://streams.videolan.org/upload/ "
2215 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2221 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2224 AVDeviceInfoList *device_list = NULL;
2226 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2227 return AVERROR(EINVAL);
2229 printf("Auto-detected sources for %s:\n", fmt->name);
2230 if (!fmt->get_device_list) {
2231 ret = AVERROR(ENOSYS);
2232 printf("Cannot list sources. Not implemented.\n");
2236 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2237 printf("Cannot list sources.\n");
2241 for (i = 0; i < device_list->nb_devices; i++) {
2242 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2243 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2247 avdevice_free_list_devices(&device_list);
2251 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2254 AVDeviceInfoList *device_list = NULL;
2256 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2257 return AVERROR(EINVAL);
2259 printf("Auto-detected sinks for %s:\n", fmt->name);
2260 if (!fmt->get_device_list) {
2261 ret = AVERROR(ENOSYS);
2262 printf("Cannot list sinks. Not implemented.\n");
2266 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2267 printf("Cannot list sinks.\n");
2271 for (i = 0; i < device_list->nb_devices; i++) {
2272 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2273 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2277 avdevice_free_list_devices(&device_list);
2281 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2285 char *opts_str = NULL;
2286 av_assert0(dev && opts);
2287 *dev = av_strdup(arg);
2289 return AVERROR(ENOMEM);
2290 if ((opts_str = strchr(*dev, ','))) {
2291 *(opts_str++) = '\0';
2292 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2298 printf("\nDevice name is not provided.\n"
2299 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2303 int show_sources(void *optctx, const char *opt, const char *arg)
2305 AVInputFormat *fmt = NULL;
2307 AVDictionary *opts = NULL;
2309 int error_level = av_log_get_level();
2311 av_log_set_level(AV_LOG_ERROR);
2313 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2317 fmt = av_input_audio_device_next(fmt);
2319 if (!strcmp(fmt->name, "lavfi"))
2320 continue; //it's pointless to probe lavfi
2321 if (dev && !av_match_name(dev, fmt->name))
2323 print_device_sources(fmt, opts);
2327 fmt = av_input_video_device_next(fmt);
2329 if (dev && !av_match_name(dev, fmt->name))
2331 print_device_sources(fmt, opts);
2335 av_dict_free(&opts);
2337 av_log_set_level(error_level);
2341 int show_sinks(void *optctx, const char *opt, const char *arg)
2343 AVOutputFormat *fmt = NULL;
2345 AVDictionary *opts = NULL;
2347 int error_level = av_log_get_level();
2349 av_log_set_level(AV_LOG_ERROR);
2351 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2355 fmt = av_output_audio_device_next(fmt);
2357 if (dev && !av_match_name(dev, fmt->name))
2359 print_device_sinks(fmt, opts);
2363 fmt = av_output_video_device_next(fmt);
2365 if (dev && !av_match_name(dev, fmt->name))
2367 print_device_sinks(fmt, opts);
2371 av_dict_free(&opts);
2373 av_log_set_level(error_level);