2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
28 /* Include only the enabled headers since some compilers (namely, Sun
29 Studio) will not omit unused inline functions and create undefined
30 references to libraries that are not being built. */
33 #include "compat/va_copy.h"
34 #include "libavformat/avformat.h"
35 #include "libavfilter/avfilter.h"
36 #include "libavdevice/avdevice.h"
37 #include "libavresample/avresample.h"
38 #include "libswscale/swscale.h"
39 #include "libswresample/swresample.h"
40 #include "libpostproc/postprocess.h"
41 #include "libavutil/avassert.h"
42 #include "libavutil/avstring.h"
43 #include "libavutil/bprint.h"
44 #include "libavutil/display.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/imgutils.h"
47 #include "libavutil/libm.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/pixdesc.h"
50 #include "libavutil/eval.h"
51 #include "libavutil/dict.h"
52 #include "libavutil/opt.h"
53 #include "libavutil/cpu.h"
54 #include "libavutil/ffversion.h"
55 #include "libavutil/version.h"
58 #include "libavformat/network.h"
60 #if HAVE_SYS_RESOURCE_H
62 #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;
77 av_dict_set(&sws_dict, "flags", "bicubic", 0);
80 void uninit_opts(void)
82 av_dict_free(&swr_opts);
83 av_dict_free(&sws_dict);
84 av_dict_free(&format_opts);
85 av_dict_free(&codec_opts);
86 av_dict_free(&resample_opts);
89 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
91 vfprintf(stdout, fmt, vl);
94 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
98 static int print_prefix = 1;
101 av_log_default_callback(ptr, level, fmt, vl);
102 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
104 if (report_file_level >= level) {
105 fputs(line, report_file);
110 static void (*program_exit)(int ret);
112 void register_exit(void (*cb)(int ret))
117 void exit_program(int ret)
125 double parse_number_or_die(const char *context, const char *numstr, int type,
126 double min, double max)
130 double d = av_strtod(numstr, &tail);
132 error = "Expected number for %s but found: %s\n";
133 else if (d < min || d > max)
134 error = "The value for %s was %s which is not within %f - %f\n";
135 else if (type == OPT_INT64 && (int64_t)d != d)
136 error = "Expected int64 for %s but found %s\n";
137 else if (type == OPT_INT && (int)d != d)
138 error = "Expected int for %s but found %s\n";
141 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
146 int64_t parse_time_or_die(const char *context, const char *timestr,
150 if (av_parse_time(&us, timestr, is_duration) < 0) {
151 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
152 is_duration ? "duration" : "date", context, timestr);
158 void show_help_options(const OptionDef *options, const char *msg, int req_flags,
159 int rej_flags, int alt_flags)
165 for (po = options; po->name; po++) {
168 if (((po->flags & req_flags) != req_flags) ||
169 (alt_flags && !(po->flags & alt_flags)) ||
170 (po->flags & rej_flags))
177 av_strlcpy(buf, po->name, sizeof(buf));
179 av_strlcat(buf, " ", sizeof(buf));
180 av_strlcat(buf, po->argname, sizeof(buf));
182 printf("-%-17s %s\n", buf, po->help);
187 void show_help_children(const AVClass *class, int flags)
189 const AVClass *child = NULL;
191 av_opt_show2(&class, NULL, flags, 0);
195 while (child = av_opt_child_class_next(class, child))
196 show_help_children(child, flags);
199 static const OptionDef *find_option(const OptionDef *po, const char *name)
201 const char *p = strchr(name, ':');
202 int len = p ? p - name : strlen(name);
205 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
212 /* _WIN32 means using the windows libc - cygwin doesn't define that
213 * by default. HAVE_COMMANDLINETOARGVW is true on cygwin, while
214 * it doesn't provide the actual command line via GetCommandLineW(). */
215 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
217 #include <shellapi.h>
218 /* Will be leaked on exit */
219 static char** win32_argv_utf8 = NULL;
220 static int win32_argc = 0;
223 * Prepare command line arguments for executable.
224 * For Windows - perform wide-char to UTF-8 conversion.
225 * Input arguments should be main() function arguments.
226 * @param argc_ptr Arguments number (including executable)
227 * @param argv_ptr Arguments list.
229 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
233 int i, buffsize = 0, offset = 0;
235 if (win32_argv_utf8) {
236 *argc_ptr = win32_argc;
237 *argv_ptr = win32_argv_utf8;
242 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
243 if (win32_argc <= 0 || !argv_w)
246 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
247 for (i = 0; i < win32_argc; i++)
248 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
249 NULL, 0, NULL, NULL);
251 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
252 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
253 if (!win32_argv_utf8) {
258 for (i = 0; i < win32_argc; i++) {
259 win32_argv_utf8[i] = &argstr_flat[offset];
260 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
261 &argstr_flat[offset],
262 buffsize - offset, NULL, NULL);
264 win32_argv_utf8[i] = NULL;
267 *argc_ptr = win32_argc;
268 *argv_ptr = win32_argv_utf8;
271 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
275 #endif /* HAVE_COMMANDLINETOARGVW */
277 static int write_option(void *optctx, const OptionDef *po, const char *opt,
280 /* new-style options contain an offset into optctx, old-style address of
282 void *dst = po->flags & (OPT_OFFSET | OPT_SPEC) ?
283 (uint8_t *)optctx + po->u.off : po->u.dst_ptr;
286 if (po->flags & OPT_SPEC) {
287 SpecifierOpt **so = dst;
288 char *p = strchr(opt, ':');
291 dstcount = (int *)(so + 1);
292 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
293 str = av_strdup(p ? p + 1 : "");
295 return AVERROR(ENOMEM);
296 (*so)[*dstcount - 1].specifier = str;
297 dst = &(*so)[*dstcount - 1].u;
300 if (po->flags & OPT_STRING) {
302 str = av_strdup(arg);
305 return AVERROR(ENOMEM);
307 } else if (po->flags & OPT_BOOL || po->flags & OPT_INT) {
308 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
309 } else if (po->flags & OPT_INT64) {
310 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
311 } else if (po->flags & OPT_TIME) {
312 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
313 } else if (po->flags & OPT_FLOAT) {
314 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
315 } else if (po->flags & OPT_DOUBLE) {
316 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
317 } else if (po->u.func_arg) {
318 int ret = po->u.func_arg(optctx, opt, arg);
320 av_log(NULL, AV_LOG_ERROR,
321 "Failed to set value '%s' for option '%s': %s\n",
322 arg, opt, av_err2str(ret));
326 if (po->flags & OPT_EXIT)
332 int parse_option(void *optctx, const char *opt, const char *arg,
333 const OptionDef *options)
338 po = find_option(options, opt);
339 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
340 /* handle 'no' bool option */
341 po = find_option(options, opt + 2);
342 if ((po->name && (po->flags & OPT_BOOL)))
344 } else if (po->flags & OPT_BOOL)
348 po = find_option(options, "default");
350 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
351 return AVERROR(EINVAL);
353 if (po->flags & HAS_ARG && !arg) {
354 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
355 return AVERROR(EINVAL);
358 ret = write_option(optctx, po, opt, arg);
362 return !!(po->flags & HAS_ARG);
365 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
366 void (*parse_arg_function)(void *, const char*))
369 int optindex, handleoptions = 1, ret;
371 /* perform system-dependent conversions for arguments list */
372 prepare_app_arguments(&argc, &argv);
376 while (optindex < argc) {
377 opt = argv[optindex++];
379 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
380 if (opt[1] == '-' && opt[2] == '\0') {
386 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
390 if (parse_arg_function)
391 parse_arg_function(optctx, opt);
396 int parse_optgroup(void *optctx, OptionGroup *g)
400 av_log(NULL, AV_LOG_DEBUG, "Parsing a group of options: %s %s.\n",
401 g->group_def->name, g->arg);
403 for (i = 0; i < g->nb_opts; i++) {
404 Option *o = &g->opts[i];
406 if (g->group_def->flags &&
407 !(g->group_def->flags & o->opt->flags)) {
408 av_log(NULL, AV_LOG_ERROR, "Option %s (%s) cannot be applied to "
409 "%s %s -- you are trying to apply an input option to an "
410 "output file or vice versa. Move this option before the "
411 "file it belongs to.\n", o->key, o->opt->help,
412 g->group_def->name, g->arg);
413 return AVERROR(EINVAL);
416 av_log(NULL, AV_LOG_DEBUG, "Applying option %s (%s) with argument %s.\n",
417 o->key, o->opt->help, o->val);
419 ret = write_option(optctx, o->opt, o->key, o->val);
424 av_log(NULL, AV_LOG_DEBUG, "Successfully parsed a group of options.\n");
429 int locate_option(int argc, char **argv, const OptionDef *options,
435 for (i = 1; i < argc; i++) {
436 const char *cur_opt = argv[i];
438 if (*cur_opt++ != '-')
441 po = find_option(options, cur_opt);
442 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
443 po = find_option(options, cur_opt + 2);
445 if ((!po->name && !strcmp(cur_opt, optname)) ||
446 (po->name && !strcmp(optname, po->name)))
449 if (!po->name || po->flags & HAS_ARG)
455 static void dump_argument(const char *a)
457 const unsigned char *p;
460 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
461 *p == '_' || (*p >= 'a' && *p <= 'z')))
464 fputs(a, report_file);
467 fputc('"', report_file);
468 for (p = a; *p; p++) {
469 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
470 fprintf(report_file, "\\%c", *p);
471 else if (*p < ' ' || *p > '~')
472 fprintf(report_file, "\\x%02x", *p);
474 fputc(*p, report_file);
476 fputc('"', report_file);
479 static void check_options(const OptionDef *po)
482 if (po->flags & OPT_PERFILE)
483 av_assert0(po->flags & (OPT_INPUT | OPT_OUTPUT));
488 void parse_loglevel(int argc, char **argv, const OptionDef *options)
490 int idx = locate_option(argc, argv, options, "loglevel");
493 check_options(options);
496 idx = locate_option(argc, argv, options, "v");
497 if (idx && argv[idx + 1])
498 opt_loglevel(NULL, "loglevel", argv[idx + 1]);
499 idx = locate_option(argc, argv, options, "report");
500 if ((env = getenv("FFREPORT")) || idx) {
504 fprintf(report_file, "Command line:\n");
505 for (i = 0; i < argc; i++) {
506 dump_argument(argv[i]);
507 fputc(i < argc - 1 ? ' ' : '\n', report_file);
512 idx = locate_option(argc, argv, options, "hide_banner");
517 static const AVOption *opt_find(void *obj, const char *name, const char *unit,
518 int opt_flags, int search_flags)
520 const AVOption *o = av_opt_find(obj, name, unit, opt_flags, search_flags);
526 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS && (arg[0]=='-' || arg[0]=='+')) ? AV_DICT_APPEND : 0
527 int opt_default(void *optctx, const char *opt, const char *arg)
531 char opt_stripped[128];
533 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class();
534 #if CONFIG_AVRESAMPLE
535 const AVClass *rc = avresample_get_class();
538 const AVClass *sc = sws_get_class();
540 #if CONFIG_SWRESAMPLE
541 const AVClass *swr_class = swr_get_class();
544 if (!strcmp(opt, "debug") || !strcmp(opt, "fdebug"))
545 av_log_set_level(AV_LOG_DEBUG);
547 if (!(p = strchr(opt, ':')))
548 p = opt + strlen(opt);
549 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
551 if ((o = opt_find(&cc, opt_stripped, NULL, 0,
552 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
553 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
554 (o = opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ)))) {
555 av_dict_set(&codec_opts, opt, arg, FLAGS);
558 if ((o = opt_find(&fc, opt, NULL, 0,
559 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
560 av_dict_set(&format_opts, opt, arg, FLAGS);
562 av_log(NULL, AV_LOG_VERBOSE, "Routing option %s to both codec and muxer layer\n", opt);
566 if (!consumed && (o = opt_find(&sc, opt, NULL, 0,
567 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
568 struct SwsContext *sws = sws_alloc_context();
569 int ret = av_opt_set(sws, opt, arg, 0);
570 sws_freeContext(sws);
571 if (!strcmp(opt, "srcw") || !strcmp(opt, "srch") ||
572 !strcmp(opt, "dstw") || !strcmp(opt, "dsth") ||
573 !strcmp(opt, "src_format") || !strcmp(opt, "dst_format")) {
574 av_log(NULL, AV_LOG_ERROR, "Directly using swscale dimensions/format options is not supported, please use the -s or -pix_fmt options\n");
575 return AVERROR(EINVAL);
578 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
582 av_dict_set(&sws_dict, opt, arg, FLAGS);
587 if (!consumed && !strcmp(opt, "sws_flags")) {
588 av_log(NULL, AV_LOG_WARNING, "Ignoring %s %s, due to disabled swscale\n", opt, arg);
592 #if CONFIG_SWRESAMPLE
593 if (!consumed && (o=opt_find(&swr_class, opt, NULL, 0,
594 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
595 struct SwrContext *swr = swr_alloc();
596 int ret = av_opt_set(swr, opt, arg, 0);
599 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
602 av_dict_set(&swr_opts, opt, arg, FLAGS);
606 #if CONFIG_AVRESAMPLE
607 if ((o=opt_find(&rc, opt, NULL, 0,
608 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
609 av_dict_set(&resample_opts, opt, arg, FLAGS);
616 return AVERROR_OPTION_NOT_FOUND;
620 * Check whether given option is a group separator.
622 * @return index of the group definition that matched or -1 if none
624 static int match_group_separator(const OptionGroupDef *groups, int nb_groups,
629 for (i = 0; i < nb_groups; i++) {
630 const OptionGroupDef *p = &groups[i];
631 if (p->sep && !strcmp(p->sep, opt))
639 * Finish parsing an option group.
641 * @param group_idx which group definition should this group belong to
642 * @param arg argument of the group delimiting option
644 static void finish_group(OptionParseContext *octx, int group_idx,
647 OptionGroupList *l = &octx->groups[group_idx];
650 GROW_ARRAY(l->groups, l->nb_groups);
651 g = &l->groups[l->nb_groups - 1];
653 *g = octx->cur_group;
655 g->group_def = l->group_def;
656 g->sws_dict = sws_dict;
657 g->swr_opts = swr_opts;
658 g->codec_opts = codec_opts;
659 g->format_opts = format_opts;
660 g->resample_opts = resample_opts;
664 resample_opts = NULL;
669 memset(&octx->cur_group, 0, sizeof(octx->cur_group));
673 * Add an option instance to currently parsed group.
675 static void add_opt(OptionParseContext *octx, const OptionDef *opt,
676 const char *key, const char *val)
678 int global = !(opt->flags & (OPT_PERFILE | OPT_SPEC | OPT_OFFSET));
679 OptionGroup *g = global ? &octx->global_opts : &octx->cur_group;
681 GROW_ARRAY(g->opts, g->nb_opts);
682 g->opts[g->nb_opts - 1].opt = opt;
683 g->opts[g->nb_opts - 1].key = key;
684 g->opts[g->nb_opts - 1].val = val;
687 static void init_parse_context(OptionParseContext *octx,
688 const OptionGroupDef *groups, int nb_groups)
690 static const OptionGroupDef global_group = { "global" };
693 memset(octx, 0, sizeof(*octx));
695 octx->nb_groups = nb_groups;
696 octx->groups = av_mallocz_array(octx->nb_groups, sizeof(*octx->groups));
700 for (i = 0; i < octx->nb_groups; i++)
701 octx->groups[i].group_def = &groups[i];
703 octx->global_opts.group_def = &global_group;
704 octx->global_opts.arg = "";
709 void uninit_parse_context(OptionParseContext *octx)
713 for (i = 0; i < octx->nb_groups; i++) {
714 OptionGroupList *l = &octx->groups[i];
716 for (j = 0; j < l->nb_groups; j++) {
717 av_freep(&l->groups[j].opts);
718 av_dict_free(&l->groups[j].codec_opts);
719 av_dict_free(&l->groups[j].format_opts);
720 av_dict_free(&l->groups[j].resample_opts);
722 av_dict_free(&l->groups[j].sws_dict);
723 av_dict_free(&l->groups[j].swr_opts);
725 av_freep(&l->groups);
727 av_freep(&octx->groups);
729 av_freep(&octx->cur_group.opts);
730 av_freep(&octx->global_opts.opts);
735 int split_commandline(OptionParseContext *octx, int argc, char *argv[],
736 const OptionDef *options,
737 const OptionGroupDef *groups, int nb_groups)
742 /* perform system-dependent conversions for arguments list */
743 prepare_app_arguments(&argc, &argv);
745 init_parse_context(octx, groups, nb_groups);
746 av_log(NULL, AV_LOG_DEBUG, "Splitting the commandline.\n");
748 while (optindex < argc) {
749 const char *opt = argv[optindex++], *arg;
753 av_log(NULL, AV_LOG_DEBUG, "Reading option '%s' ...", opt);
755 if (opt[0] == '-' && opt[1] == '-' && !opt[2]) {
759 /* unnamed group separators, e.g. output filename */
760 if (opt[0] != '-' || !opt[1] || dashdash+1 == optindex) {
761 finish_group(octx, 0, opt);
762 av_log(NULL, AV_LOG_DEBUG, " matched as %s.\n", groups[0].name);
767 #define GET_ARG(arg) \
769 arg = argv[optindex++]; \
771 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
772 return AVERROR(EINVAL); \
776 /* named group separators, e.g. -i */
777 if ((ret = match_group_separator(groups, nb_groups, opt)) >= 0) {
779 finish_group(octx, ret, arg);
780 av_log(NULL, AV_LOG_DEBUG, " matched as %s with argument '%s'.\n",
781 groups[ret].name, arg);
786 po = find_option(options, opt);
788 if (po->flags & OPT_EXIT) {
789 /* optional argument, e.g. -h */
790 arg = argv[optindex++];
791 } else if (po->flags & HAS_ARG) {
797 add_opt(octx, po, opt, arg);
798 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
799 "argument '%s'.\n", po->name, po->help, arg);
804 if (argv[optindex]) {
805 ret = opt_default(NULL, opt, argv[optindex]);
807 av_log(NULL, AV_LOG_DEBUG, " matched as AVOption '%s' with "
808 "argument '%s'.\n", opt, argv[optindex]);
811 } else if (ret != AVERROR_OPTION_NOT_FOUND) {
812 av_log(NULL, AV_LOG_ERROR, "Error parsing option '%s' "
813 "with argument '%s'.\n", opt, argv[optindex]);
818 /* boolean -nofoo options */
819 if (opt[0] == 'n' && opt[1] == 'o' &&
820 (po = find_option(options, opt + 2)) &&
821 po->name && po->flags & OPT_BOOL) {
822 add_opt(octx, po, opt, "0");
823 av_log(NULL, AV_LOG_DEBUG, " matched as option '%s' (%s) with "
824 "argument 0.\n", po->name, po->help);
828 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'.\n", opt);
829 return AVERROR_OPTION_NOT_FOUND;
832 if (octx->cur_group.nb_opts || codec_opts || format_opts || resample_opts)
833 av_log(NULL, AV_LOG_WARNING, "Trailing options were found on the "
836 av_log(NULL, AV_LOG_DEBUG, "Finished splitting the commandline.\n");
841 int opt_cpuflags(void *optctx, const char *opt, const char *arg)
844 unsigned flags = av_get_cpu_flags();
846 if ((ret = av_parse_cpu_caps(&flags, arg)) < 0)
849 av_force_cpu_flags(flags);
853 int opt_loglevel(void *optctx, const char *opt, const char *arg)
855 const struct { const char *name; int level; } log_levels[] = {
856 { "quiet" , AV_LOG_QUIET },
857 { "panic" , AV_LOG_PANIC },
858 { "fatal" , AV_LOG_FATAL },
859 { "error" , AV_LOG_ERROR },
860 { "warning", AV_LOG_WARNING },
861 { "info" , AV_LOG_INFO },
862 { "verbose", AV_LOG_VERBOSE },
863 { "debug" , AV_LOG_DEBUG },
864 { "trace" , AV_LOG_TRACE },
871 flags = av_log_get_flags();
872 tail = strstr(arg, "repeat");
874 flags &= ~AV_LOG_SKIP_REPEATED;
876 flags |= AV_LOG_SKIP_REPEATED;
878 av_log_set_flags(flags);
880 arg += 6 + (arg[6]=='+');
884 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
885 if (!strcmp(log_levels[i].name, arg)) {
886 av_log_set_level(log_levels[i].level);
891 level = strtol(arg, &tail, 10);
893 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
894 "Possible levels are numbers or:\n", arg);
895 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
896 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
899 av_log_set_level(level);
903 static void expand_filename_template(AVBPrint *bp, const char *template,
908 while ((c = *(template++))) {
910 if (!(c = *(template++)))
914 av_bprintf(bp, "%s", program_name);
917 av_bprintf(bp, "%04d%02d%02d-%02d%02d%02d",
918 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
919 tm->tm_hour, tm->tm_min, tm->tm_sec);
922 av_bprint_chars(bp, c, 1);
926 av_bprint_chars(bp, c, 1);
931 static int init_report(const char *env)
933 char *filename_template = NULL;
940 if (report_file) /* already opened */
943 tm = localtime(&now);
945 while (env && *env) {
946 if ((ret = av_opt_get_key_value(&env, "=", ":", 0, &key, &val)) < 0) {
948 av_log(NULL, AV_LOG_ERROR,
949 "Failed to parse FFREPORT environment variable: %s\n",
956 if (!strcmp(key, "file")) {
957 av_free(filename_template);
958 filename_template = val;
960 } else if (!strcmp(key, "level")) {
962 report_file_level = strtol(val, &tail, 10);
964 av_log(NULL, AV_LOG_FATAL, "Invalid report file level\n");
968 av_log(NULL, AV_LOG_ERROR, "Unknown key '%s' in FFREPORT\n", key);
974 av_bprint_init(&filename, 0, 1);
975 expand_filename_template(&filename,
976 av_x_if_null(filename_template, "%p-%t.log"), tm);
977 av_free(filename_template);
978 if (!av_bprint_is_complete(&filename)) {
979 av_log(NULL, AV_LOG_ERROR, "Out of memory building report file name\n");
980 return AVERROR(ENOMEM);
983 report_file = fopen(filename.str, "w");
985 int ret = AVERROR(errno);
986 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
987 filename.str, strerror(errno));
990 av_log_set_callback(log_callback_report);
991 av_log(NULL, AV_LOG_INFO,
992 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
993 "Report written to \"%s\"\n",
995 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
996 tm->tm_hour, tm->tm_min, tm->tm_sec,
998 av_bprint_finalize(&filename, NULL);
1002 int opt_report(const char *opt)
1004 return init_report(NULL);
1007 int opt_max_alloc(void *optctx, const char *opt, const char *arg)
1012 max = strtol(arg, &tail, 10);
1014 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
1021 int opt_timelimit(void *optctx, const char *opt, const char *arg)
1024 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
1025 struct rlimit rl = { lim, lim + 1 };
1026 if (setrlimit(RLIMIT_CPU, &rl))
1027 perror("setrlimit");
1029 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
1034 void print_error(const char *filename, int err)
1037 const char *errbuf_ptr = errbuf;
1039 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
1040 errbuf_ptr = strerror(AVUNERROR(err));
1041 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
1044 static int warned_cfg = 0;
1047 #define SHOW_VERSION 2
1048 #define SHOW_CONFIG 4
1049 #define SHOW_COPYRIGHT 8
1051 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1052 if (CONFIG_##LIBNAME) { \
1053 const char *indent = flags & INDENT? " " : ""; \
1054 if (flags & SHOW_VERSION) { \
1055 unsigned int version = libname##_version(); \
1056 av_log(NULL, level, \
1057 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1059 LIB##LIBNAME##_VERSION_MAJOR, \
1060 LIB##LIBNAME##_VERSION_MINOR, \
1061 LIB##LIBNAME##_VERSION_MICRO, \
1062 AV_VERSION_MAJOR(version), AV_VERSION_MINOR(version),\
1063 AV_VERSION_MICRO(version)); \
1065 if (flags & SHOW_CONFIG) { \
1066 const char *cfg = libname##_configuration(); \
1067 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1068 if (!warned_cfg) { \
1069 av_log(NULL, level, \
1070 "%sWARNING: library configuration mismatch\n", \
1074 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1075 indent, #libname, cfg); \
1080 static void print_all_libs_info(int flags, int level)
1082 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
1083 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
1084 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
1085 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
1086 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
1087 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
1088 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
1089 PRINT_LIB_INFO(swresample, SWRESAMPLE, flags, level);
1090 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
1093 static void print_program_info(int flags, int level)
1095 const char *indent = flags & INDENT? " " : "";
1097 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
1098 if (flags & SHOW_COPYRIGHT)
1099 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
1100 program_birth_year, CONFIG_THIS_YEAR);
1101 av_log(NULL, level, "\n");
1102 av_log(NULL, level, "%sbuilt with %s\n", indent, CC_IDENT);
1104 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
1107 static void print_buildconf(int flags, int level)
1109 const char *indent = flags & INDENT ? " " : "";
1110 char str[] = { FFMPEG_CONFIGURATION };
1111 char *conflist, *remove_tilde, *splitconf;
1113 // Change all the ' --' strings to '~--' so that
1114 // they can be identified as tokens.
1115 while ((conflist = strstr(str, " --")) != NULL) {
1116 strncpy(conflist, "~--", 3);
1119 // Compensate for the weirdness this would cause
1120 // when passing 'pkg-config --static'.
1121 while ((remove_tilde = strstr(str, "pkg-config~")) != NULL) {
1122 strncpy(remove_tilde, "pkg-config ", 11);
1125 splitconf = strtok(str, "~");
1126 av_log(NULL, level, "\n%sconfiguration:\n", indent);
1127 while (splitconf != NULL) {
1128 av_log(NULL, level, "%s%s%s\n", indent, indent, splitconf);
1129 splitconf = strtok(NULL, "~");
1133 void show_banner(int argc, char **argv, const OptionDef *options)
1135 int idx = locate_option(argc, argv, options, "version");
1136 if (hide_banner || idx)
1139 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
1140 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
1141 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
1144 int show_version(void *optctx, const char *opt, const char *arg)
1146 av_log_set_callback(log_callback_help);
1147 print_program_info (SHOW_COPYRIGHT, AV_LOG_INFO);
1148 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
1153 int show_buildconf(void *optctx, const char *opt, const char *arg)
1155 av_log_set_callback(log_callback_help);
1156 print_buildconf (INDENT|0, AV_LOG_INFO);
1161 int show_license(void *optctx, const char *opt, const char *arg)
1165 "This version of %s has nonfree parts compiled in.\n"
1166 "Therefore it is not legally redistributable.\n",
1170 "%s is free software; you can redistribute it and/or modify\n"
1171 "it under the terms of the GNU General Public License as published by\n"
1172 "the Free Software Foundation; either version 3 of the License, or\n"
1173 "(at your option) any later version.\n"
1175 "%s is distributed in the hope that it will be useful,\n"
1176 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1177 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1178 "GNU General Public License for more details.\n"
1180 "You should have received a copy of the GNU General Public License\n"
1181 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1182 program_name, program_name, program_name );
1185 "%s is free software; you can redistribute it and/or modify\n"
1186 "it under the terms of the GNU General Public License as published by\n"
1187 "the Free Software Foundation; either version 2 of the License, or\n"
1188 "(at your option) any later version.\n"
1190 "%s is distributed in the hope that it will be useful,\n"
1191 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1192 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1193 "GNU General Public License for more details.\n"
1195 "You should have received a copy of the GNU General Public License\n"
1196 "along with %s; if not, write to the Free Software\n"
1197 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1198 program_name, program_name, program_name );
1201 "%s is free software; you can redistribute it and/or modify\n"
1202 "it under the terms of the GNU Lesser General Public License as published by\n"
1203 "the Free Software Foundation; either version 3 of the License, or\n"
1204 "(at your option) any later version.\n"
1206 "%s is distributed in the hope that it will be useful,\n"
1207 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1208 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1209 "GNU Lesser General Public License for more details.\n"
1211 "You should have received a copy of the GNU Lesser General Public License\n"
1212 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1213 program_name, program_name, program_name );
1216 "%s is free software; you can redistribute it and/or\n"
1217 "modify it under the terms of the GNU Lesser General Public\n"
1218 "License as published by the Free Software Foundation; either\n"
1219 "version 2.1 of the License, or (at your option) any later version.\n"
1221 "%s is distributed in the hope that it will be useful,\n"
1222 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1223 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1224 "Lesser General Public License for more details.\n"
1226 "You should have received a copy of the GNU Lesser General Public\n"
1227 "License along with %s; if not, write to the Free Software\n"
1228 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1229 program_name, program_name, program_name );
1235 static int is_device(const AVClass *avclass)
1239 return AV_IS_INPUT_DEVICE(avclass->category) || AV_IS_OUTPUT_DEVICE(avclass->category);
1242 static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
1244 AVInputFormat *ifmt = NULL;
1245 AVOutputFormat *ofmt = NULL;
1246 const char *last_name;
1250 " D. = Demuxing supported\n"
1251 " .E = Muxing supported\n"
1252 " --\n", device_only ? "Devices:" : "File formats:");
1257 const char *name = NULL;
1258 const char *long_name = NULL;
1260 while ((ofmt = av_oformat_next(ofmt))) {
1261 is_dev = is_device(ofmt->priv_class);
1262 if (!is_dev && device_only)
1264 if ((!name || strcmp(ofmt->name, name) < 0) &&
1265 strcmp(ofmt->name, last_name) > 0) {
1267 long_name = ofmt->long_name;
1271 while ((ifmt = av_iformat_next(ifmt))) {
1272 is_dev = is_device(ifmt->priv_class);
1273 if (!is_dev && device_only)
1275 if ((!name || strcmp(ifmt->name, name) < 0) &&
1276 strcmp(ifmt->name, last_name) > 0) {
1278 long_name = ifmt->long_name;
1281 if (name && strcmp(ifmt->name, name) == 0)
1288 printf(" %s%s %-15s %s\n",
1292 long_name ? long_name:" ");
1297 int show_formats(void *optctx, const char *opt, const char *arg)
1299 return show_formats_devices(optctx, opt, arg, 0);
1302 int show_devices(void *optctx, const char *opt, const char *arg)
1304 return show_formats_devices(optctx, opt, arg, 1);
1307 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1308 if (codec->field) { \
1309 const type *p = codec->field; \
1311 printf(" Supported " list_name ":"); \
1312 while (*p != term) { \
1314 printf(" %s", name); \
1320 static void print_codec(const AVCodec *c)
1322 int encoder = av_codec_is_encoder(c);
1324 printf("%s %s [%s]:\n", encoder ? "Encoder" : "Decoder", c->name,
1325 c->long_name ? c->long_name : "");
1327 printf(" General capabilities: ");
1328 if (c->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)
1329 printf("horizband ");
1330 if (c->capabilities & AV_CODEC_CAP_DR1)
1332 if (c->capabilities & AV_CODEC_CAP_TRUNCATED)
1334 if (c->capabilities & AV_CODEC_CAP_DELAY)
1336 if (c->capabilities & AV_CODEC_CAP_SMALL_LAST_FRAME)
1338 if (c->capabilities & AV_CODEC_CAP_SUBFRAMES)
1339 printf("subframes ");
1340 if (c->capabilities & AV_CODEC_CAP_EXPERIMENTAL)
1342 if (c->capabilities & AV_CODEC_CAP_CHANNEL_CONF)
1344 if (c->capabilities & AV_CODEC_CAP_PARAM_CHANGE)
1345 printf("paramchange ");
1346 if (c->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
1347 printf("variable ");
1348 if (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1349 AV_CODEC_CAP_SLICE_THREADS |
1350 AV_CODEC_CAP_AUTO_THREADS))
1352 if (!c->capabilities)
1356 if (c->type == AVMEDIA_TYPE_VIDEO ||
1357 c->type == AVMEDIA_TYPE_AUDIO) {
1358 printf(" Threading capabilities: ");
1359 switch (c->capabilities & (AV_CODEC_CAP_FRAME_THREADS |
1360 AV_CODEC_CAP_SLICE_THREADS |
1361 AV_CODEC_CAP_AUTO_THREADS)) {
1362 case AV_CODEC_CAP_FRAME_THREADS |
1363 AV_CODEC_CAP_SLICE_THREADS: printf("frame and slice"); break;
1364 case AV_CODEC_CAP_FRAME_THREADS: printf("frame"); break;
1365 case AV_CODEC_CAP_SLICE_THREADS: printf("slice"); break;
1366 case AV_CODEC_CAP_AUTO_THREADS : printf("auto"); break;
1367 default: printf("none"); break;
1372 if (c->supported_framerates) {
1373 const AVRational *fps = c->supported_framerates;
1375 printf(" Supported framerates:");
1377 printf(" %d/%d", fps->num, fps->den);
1382 PRINT_CODEC_SUPPORTED(c, pix_fmts, enum AVPixelFormat, "pixel formats",
1383 AV_PIX_FMT_NONE, GET_PIX_FMT_NAME);
1384 PRINT_CODEC_SUPPORTED(c, supported_samplerates, int, "sample rates", 0,
1385 GET_SAMPLE_RATE_NAME);
1386 PRINT_CODEC_SUPPORTED(c, sample_fmts, enum AVSampleFormat, "sample formats",
1387 AV_SAMPLE_FMT_NONE, GET_SAMPLE_FMT_NAME);
1388 PRINT_CODEC_SUPPORTED(c, channel_layouts, uint64_t, "channel layouts",
1389 0, GET_CH_LAYOUT_DESC);
1391 if (c->priv_class) {
1392 show_help_children(c->priv_class,
1393 AV_OPT_FLAG_ENCODING_PARAM |
1394 AV_OPT_FLAG_DECODING_PARAM);
1398 static char get_media_type_char(enum AVMediaType type)
1401 case AVMEDIA_TYPE_VIDEO: return 'V';
1402 case AVMEDIA_TYPE_AUDIO: return 'A';
1403 case AVMEDIA_TYPE_DATA: return 'D';
1404 case AVMEDIA_TYPE_SUBTITLE: return 'S';
1405 case AVMEDIA_TYPE_ATTACHMENT:return 'T';
1406 default: return '?';
1410 static const AVCodec *next_codec_for_id(enum AVCodecID id, const AVCodec *prev,
1413 while ((prev = av_codec_next(prev))) {
1414 if (prev->id == id &&
1415 (encoder ? av_codec_is_encoder(prev) : av_codec_is_decoder(prev)))
1421 static int compare_codec_desc(const void *a, const void *b)
1423 const AVCodecDescriptor * const *da = a;
1424 const AVCodecDescriptor * const *db = b;
1426 return (*da)->type != (*db)->type ? FFDIFFSIGN((*da)->type, (*db)->type) :
1427 strcmp((*da)->name, (*db)->name);
1430 static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
1432 const AVCodecDescriptor *desc = NULL;
1433 const AVCodecDescriptor **codecs;
1434 unsigned nb_codecs = 0, i = 0;
1436 while ((desc = avcodec_descriptor_next(desc)))
1438 if (!(codecs = av_calloc(nb_codecs, sizeof(*codecs)))) {
1439 av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
1443 while ((desc = avcodec_descriptor_next(desc)))
1445 av_assert0(i == nb_codecs);
1446 qsort(codecs, nb_codecs, sizeof(*codecs), compare_codec_desc);
1451 static void print_codecs_for_id(enum AVCodecID id, int encoder)
1453 const AVCodec *codec = NULL;
1455 printf(" (%s: ", encoder ? "encoders" : "decoders");
1457 while ((codec = next_codec_for_id(id, codec, encoder)))
1458 printf("%s ", codec->name);
1463 int show_codecs(void *optctx, const char *opt, const char *arg)
1465 const AVCodecDescriptor **codecs;
1466 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1469 " D..... = Decoding supported\n"
1470 " .E.... = Encoding supported\n"
1471 " ..V... = Video codec\n"
1472 " ..A... = Audio codec\n"
1473 " ..S... = Subtitle codec\n"
1474 " ...I.. = Intra frame-only codec\n"
1475 " ....L. = Lossy compression\n"
1476 " .....S = Lossless compression\n"
1478 for (i = 0; i < nb_codecs; i++) {
1479 const AVCodecDescriptor *desc = codecs[i];
1480 const AVCodec *codec = NULL;
1482 if (strstr(desc->name, "_deprecated"))
1486 printf(avcodec_find_decoder(desc->id) ? "D" : ".");
1487 printf(avcodec_find_encoder(desc->id) ? "E" : ".");
1489 printf("%c", get_media_type_char(desc->type));
1490 printf((desc->props & AV_CODEC_PROP_INTRA_ONLY) ? "I" : ".");
1491 printf((desc->props & AV_CODEC_PROP_LOSSY) ? "L" : ".");
1492 printf((desc->props & AV_CODEC_PROP_LOSSLESS) ? "S" : ".");
1494 printf(" %-20s %s", desc->name, desc->long_name ? desc->long_name : "");
1496 /* print decoders/encoders when there's more than one or their
1497 * names are different from codec name */
1498 while ((codec = next_codec_for_id(desc->id, codec, 0))) {
1499 if (strcmp(codec->name, desc->name)) {
1500 print_codecs_for_id(desc->id, 0);
1505 while ((codec = next_codec_for_id(desc->id, codec, 1))) {
1506 if (strcmp(codec->name, desc->name)) {
1507 print_codecs_for_id(desc->id, 1);
1518 static void print_codecs(int encoder)
1520 const AVCodecDescriptor **codecs;
1521 unsigned i, nb_codecs = get_codecs_sorted(&codecs);
1526 " S..... = Subtitle\n"
1527 " .F.... = Frame-level multithreading\n"
1528 " ..S... = Slice-level multithreading\n"
1529 " ...X.. = Codec is experimental\n"
1530 " ....B. = Supports draw_horiz_band\n"
1531 " .....D = Supports direct rendering method 1\n"
1533 encoder ? "Encoders" : "Decoders");
1534 for (i = 0; i < nb_codecs; i++) {
1535 const AVCodecDescriptor *desc = codecs[i];
1536 const AVCodec *codec = NULL;
1538 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1539 printf(" %c", get_media_type_char(desc->type));
1540 printf((codec->capabilities & AV_CODEC_CAP_FRAME_THREADS) ? "F" : ".");
1541 printf((codec->capabilities & AV_CODEC_CAP_SLICE_THREADS) ? "S" : ".");
1542 printf((codec->capabilities & AV_CODEC_CAP_EXPERIMENTAL) ? "X" : ".");
1543 printf((codec->capabilities & AV_CODEC_CAP_DRAW_HORIZ_BAND)?"B" : ".");
1544 printf((codec->capabilities & AV_CODEC_CAP_DR1) ? "D" : ".");
1546 printf(" %-20s %s", codec->name, codec->long_name ? codec->long_name : "");
1547 if (strcmp(codec->name, desc->name))
1548 printf(" (codec %s)", desc->name);
1556 int show_decoders(void *optctx, const char *opt, const char *arg)
1562 int show_encoders(void *optctx, const char *opt, const char *arg)
1568 int show_bsfs(void *optctx, const char *opt, const char *arg)
1570 AVBitStreamFilter *bsf = NULL;
1572 printf("Bitstream filters:\n");
1573 while ((bsf = av_bitstream_filter_next(bsf)))
1574 printf("%s\n", bsf->name);
1579 int show_protocols(void *optctx, const char *opt, const char *arg)
1581 void *opaque = NULL;
1584 printf("Supported file protocols:\n"
1586 while ((name = avio_enum_protocols(&opaque, 0)))
1587 printf(" %s\n", name);
1588 printf("Output:\n");
1589 while ((name = avio_enum_protocols(&opaque, 1)))
1590 printf(" %s\n", name);
1594 int show_filters(void *optctx, const char *opt, const char *arg)
1597 const AVFilter *filter = NULL;
1598 char descr[64], *descr_cur;
1600 const AVFilterPad *pad;
1603 " T.. = Timeline support\n"
1604 " .S. = Slice threading\n"
1605 " ..C = Command support\n"
1606 " A = Audio input/output\n"
1607 " V = Video input/output\n"
1608 " N = Dynamic number and/or type of input/output\n"
1609 " | = Source or sink filter\n");
1610 while ((filter = avfilter_next(filter))) {
1612 for (i = 0; i < 2; i++) {
1614 *(descr_cur++) = '-';
1615 *(descr_cur++) = '>';
1617 pad = i ? filter->outputs : filter->inputs;
1618 for (j = 0; pad && avfilter_pad_get_name(pad, j); j++) {
1619 if (descr_cur >= descr + sizeof(descr) - 4)
1621 *(descr_cur++) = get_media_type_char(avfilter_pad_get_type(pad, j));
1624 *(descr_cur++) = ((!i && (filter->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)) ||
1625 ( i && (filter->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS))) ? 'N' : '|';
1628 printf(" %c%c%c %-17s %-10s %s\n",
1629 filter->flags & AVFILTER_FLAG_SUPPORT_TIMELINE ? 'T' : '.',
1630 filter->flags & AVFILTER_FLAG_SLICE_THREADS ? 'S' : '.',
1631 filter->process_command ? 'C' : '.',
1632 filter->name, descr, filter->description);
1635 printf("No filters available: libavfilter disabled\n");
1640 int show_colors(void *optctx, const char *opt, const char *arg)
1646 printf("%-32s #RRGGBB\n", "name");
1648 for (i = 0; name = av_get_known_color_name(i, &rgb); i++)
1649 printf("%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1654 int show_pix_fmts(void *optctx, const char *opt, const char *arg)
1656 const AVPixFmtDescriptor *pix_desc = NULL;
1658 printf("Pixel formats:\n"
1659 "I.... = Supported Input format for conversion\n"
1660 ".O... = Supported Output format for conversion\n"
1661 "..H.. = Hardware accelerated format\n"
1662 "...P. = Paletted format\n"
1663 "....B = Bitstream format\n"
1664 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1668 # define sws_isSupportedInput(x) 0
1669 # define sws_isSupportedOutput(x) 0
1672 while ((pix_desc = av_pix_fmt_desc_next(pix_desc))) {
1673 enum AVPixelFormat pix_fmt = av_pix_fmt_desc_get_id(pix_desc);
1674 printf("%c%c%c%c%c %-16s %d %2d\n",
1675 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
1676 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
1677 pix_desc->flags & AV_PIX_FMT_FLAG_HWACCEL ? 'H' : '.',
1678 pix_desc->flags & AV_PIX_FMT_FLAG_PAL ? 'P' : '.',
1679 pix_desc->flags & AV_PIX_FMT_FLAG_BITSTREAM ? 'B' : '.',
1681 pix_desc->nb_components,
1682 av_get_bits_per_pixel(pix_desc));
1687 int show_layouts(void *optctx, const char *opt, const char *arg)
1691 const char *name, *descr;
1693 printf("Individual channels:\n"
1694 "NAME DESCRIPTION\n");
1695 for (i = 0; i < 63; i++) {
1696 name = av_get_channel_name((uint64_t)1 << i);
1699 descr = av_get_channel_description((uint64_t)1 << i);
1700 printf("%-14s %s\n", name, descr);
1702 printf("\nStandard channel layouts:\n"
1703 "NAME DECOMPOSITION\n");
1704 for (i = 0; !av_get_standard_channel_layout(i, &layout, &name); i++) {
1706 printf("%-14s ", name);
1707 for (j = 1; j; j <<= 1)
1709 printf("%s%s", (layout & (j - 1)) ? "+" : "", av_get_channel_name(j));
1716 int show_sample_fmts(void *optctx, const char *opt, const char *arg)
1720 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
1721 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
1725 static void show_help_codec(const char *name, int encoder)
1727 const AVCodecDescriptor *desc;
1728 const AVCodec *codec;
1731 av_log(NULL, AV_LOG_ERROR, "No codec name specified.\n");
1735 codec = encoder ? avcodec_find_encoder_by_name(name) :
1736 avcodec_find_decoder_by_name(name);
1740 else if ((desc = avcodec_descriptor_get_by_name(name))) {
1743 while ((codec = next_codec_for_id(desc->id, codec, encoder))) {
1749 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is known to FFmpeg, "
1750 "but no %s for it are available. FFmpeg might need to be "
1751 "recompiled with additional external libraries.\n",
1752 name, encoder ? "encoders" : "decoders");
1755 av_log(NULL, AV_LOG_ERROR, "Codec '%s' is not recognized by FFmpeg.\n",
1760 static void show_help_demuxer(const char *name)
1762 const AVInputFormat *fmt = av_find_input_format(name);
1765 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1769 printf("Demuxer %s [%s]:\n", fmt->name, fmt->long_name);
1771 if (fmt->extensions)
1772 printf(" Common extensions: %s.\n", fmt->extensions);
1774 if (fmt->priv_class)
1775 show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
1778 static void show_help_muxer(const char *name)
1780 const AVCodecDescriptor *desc;
1781 const AVOutputFormat *fmt = av_guess_format(name, NULL, NULL);
1784 av_log(NULL, AV_LOG_ERROR, "Unknown format '%s'.\n", name);
1788 printf("Muxer %s [%s]:\n", fmt->name, fmt->long_name);
1790 if (fmt->extensions)
1791 printf(" Common extensions: %s.\n", fmt->extensions);
1793 printf(" Mime type: %s.\n", fmt->mime_type);
1794 if (fmt->video_codec != AV_CODEC_ID_NONE &&
1795 (desc = avcodec_descriptor_get(fmt->video_codec))) {
1796 printf(" Default video codec: %s.\n", desc->name);
1798 if (fmt->audio_codec != AV_CODEC_ID_NONE &&
1799 (desc = avcodec_descriptor_get(fmt->audio_codec))) {
1800 printf(" Default audio codec: %s.\n", desc->name);
1802 if (fmt->subtitle_codec != AV_CODEC_ID_NONE &&
1803 (desc = avcodec_descriptor_get(fmt->subtitle_codec))) {
1804 printf(" Default subtitle codec: %s.\n", desc->name);
1807 if (fmt->priv_class)
1808 show_help_children(fmt->priv_class, AV_OPT_FLAG_ENCODING_PARAM);
1812 static void show_help_filter(const char *name)
1815 const AVFilter *f = avfilter_get_by_name(name);
1819 av_log(NULL, AV_LOG_ERROR, "No filter name specified.\n");
1822 av_log(NULL, AV_LOG_ERROR, "Unknown filter '%s'.\n", name);
1826 printf("Filter %s\n", f->name);
1828 printf(" %s\n", f->description);
1830 if (f->flags & AVFILTER_FLAG_SLICE_THREADS)
1831 printf(" slice threading supported\n");
1833 printf(" Inputs:\n");
1834 count = avfilter_pad_count(f->inputs);
1835 for (i = 0; i < count; i++) {
1836 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->inputs, i),
1837 media_type_string(avfilter_pad_get_type(f->inputs, i)));
1839 if (f->flags & AVFILTER_FLAG_DYNAMIC_INPUTS)
1840 printf(" dynamic (depending on the options)\n");
1842 printf(" none (source filter)\n");
1844 printf(" Outputs:\n");
1845 count = avfilter_pad_count(f->outputs);
1846 for (i = 0; i < count; i++) {
1847 printf(" #%d: %s (%s)\n", i, avfilter_pad_get_name(f->outputs, i),
1848 media_type_string(avfilter_pad_get_type(f->outputs, i)));
1850 if (f->flags & AVFILTER_FLAG_DYNAMIC_OUTPUTS)
1851 printf(" dynamic (depending on the options)\n");
1853 printf(" none (sink filter)\n");
1856 show_help_children(f->priv_class, AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM |
1857 AV_OPT_FLAG_AUDIO_PARAM);
1858 if (f->flags & AVFILTER_FLAG_SUPPORT_TIMELINE)
1859 printf("This filter has support for timeline through the 'enable' option.\n");
1861 av_log(NULL, AV_LOG_ERROR, "Build without libavfilter; "
1862 "can not to satisfy request\n");
1867 int show_help(void *optctx, const char *opt, const char *arg)
1870 av_log_set_callback(log_callback_help);
1872 topic = av_strdup(arg ? arg : "");
1874 return AVERROR(ENOMEM);
1875 par = strchr(topic, '=');
1880 show_help_default(topic, par);
1881 } else if (!strcmp(topic, "decoder")) {
1882 show_help_codec(par, 0);
1883 } else if (!strcmp(topic, "encoder")) {
1884 show_help_codec(par, 1);
1885 } else if (!strcmp(topic, "demuxer")) {
1886 show_help_demuxer(par);
1887 } else if (!strcmp(topic, "muxer")) {
1888 show_help_muxer(par);
1890 } else if (!strcmp(topic, "filter")) {
1891 show_help_filter(par);
1894 show_help_default(topic, par);
1901 int read_yesno(void)
1904 int yesno = (av_toupper(c) == 'Y');
1906 while (c != '\n' && c != EOF)
1912 FILE *get_preset_file(char *filename, size_t filename_size,
1913 const char *preset_name, int is_path,
1914 const char *codec_name)
1918 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1923 av_strlcpy(filename, preset_name, filename_size);
1924 f = fopen(filename, "r");
1927 char datadir[MAX_PATH], *ls;
1930 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1932 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1933 if (*ls == '\\') *ls = '/';
1935 if (ls = strrchr(datadir, '/'))
1938 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1943 for (i = 0; i < 3 && !f; i++) {
1946 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1947 i != 1 ? "" : "/.ffmpeg", preset_name);
1948 f = fopen(filename, "r");
1949 if (!f && codec_name) {
1950 snprintf(filename, filename_size,
1951 "%s%s/%s-%s.ffpreset",
1952 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1954 f = fopen(filename, "r");
1962 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1964 int ret = avformat_match_stream_specifier(s, st, spec);
1966 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1970 AVDictionary *filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id,
1971 AVFormatContext *s, AVStream *st, AVCodec *codec)
1973 AVDictionary *ret = NULL;
1974 AVDictionaryEntry *t = NULL;
1975 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1976 : AV_OPT_FLAG_DECODING_PARAM;
1978 const AVClass *cc = avcodec_get_class();
1981 codec = s->oformat ? avcodec_find_encoder(codec_id)
1982 : avcodec_find_decoder(codec_id);
1984 switch (st->codec->codec_type) {
1985 case AVMEDIA_TYPE_VIDEO:
1987 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1989 case AVMEDIA_TYPE_AUDIO:
1991 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1993 case AVMEDIA_TYPE_SUBTITLE:
1995 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1999 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
2000 char *p = strchr(t->key, ':');
2002 /* check stream specification in opt name */
2004 switch (check_stream_specifier(s, st, p + 1)) {
2005 case 1: *p = 0; break;
2007 default: exit_program(1);
2010 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
2012 (codec->priv_class &&
2013 av_opt_find(&codec->priv_class, t->key, NULL, flags,
2014 AV_OPT_SEARCH_FAKE_OBJ)))
2015 av_dict_set(&ret, t->key, t->value, 0);
2016 else if (t->key[0] == prefix &&
2017 av_opt_find(&cc, t->key + 1, NULL, flags,
2018 AV_OPT_SEARCH_FAKE_OBJ))
2019 av_dict_set(&ret, t->key + 1, t->value, 0);
2027 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
2028 AVDictionary *codec_opts)
2031 AVDictionary **opts;
2035 opts = av_mallocz_array(s->nb_streams, sizeof(*opts));
2037 av_log(NULL, AV_LOG_ERROR,
2038 "Could not alloc memory for stream options.\n");
2041 for (i = 0; i < s->nb_streams; i++)
2042 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
2043 s, s->streams[i], NULL);
2047 void *grow_array(void *array, int elem_size, int *size, int new_size)
2049 if (new_size >= INT_MAX / elem_size) {
2050 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
2053 if (*size < new_size) {
2054 uint8_t *tmp = av_realloc_array(array, new_size, elem_size);
2056 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
2059 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2066 double get_rotation(AVStream *st)
2068 AVDictionaryEntry *rotate_tag = av_dict_get(st->metadata, "rotate", NULL, 0);
2069 uint8_t* displaymatrix = av_stream_get_side_data(st,
2070 AV_PKT_DATA_DISPLAYMATRIX, NULL);
2073 if (rotate_tag && *rotate_tag->value && strcmp(rotate_tag->value, "0")) {
2075 theta = av_strtod(rotate_tag->value, &tail);
2079 if (displaymatrix && !theta)
2080 theta = -av_display_rotation_get((int32_t*) displaymatrix);
2082 theta -= 360*floor(theta/360 + 0.9/360);
2084 if (fabs(theta - 90*round(theta/90)) > 2)
2085 av_log(NULL, AV_LOG_WARNING, "Odd rotation angle.\n"
2086 "If you want to help, upload a sample "
2087 "of this file to ftp://upload.ffmpeg.org/incoming/ "
2088 "and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)");
2094 static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
2097 AVDeviceInfoList *device_list = NULL;
2099 if (!fmt || !fmt->priv_class || !AV_IS_INPUT_DEVICE(fmt->priv_class->category))
2100 return AVERROR(EINVAL);
2102 printf("Audo-detected sources for %s:\n", fmt->name);
2103 if (!fmt->get_device_list) {
2104 ret = AVERROR(ENOSYS);
2105 printf("Cannot list sources. Not implemented.\n");
2109 if ((ret = avdevice_list_input_sources(fmt, NULL, opts, &device_list)) < 0) {
2110 printf("Cannot list sources.\n");
2114 for (i = 0; i < device_list->nb_devices; i++) {
2115 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2116 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2120 avdevice_free_list_devices(&device_list);
2124 static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
2127 AVDeviceInfoList *device_list = NULL;
2129 if (!fmt || !fmt->priv_class || !AV_IS_OUTPUT_DEVICE(fmt->priv_class->category))
2130 return AVERROR(EINVAL);
2132 printf("Audo-detected sinks for %s:\n", fmt->name);
2133 if (!fmt->get_device_list) {
2134 ret = AVERROR(ENOSYS);
2135 printf("Cannot list sinks. Not implemented.\n");
2139 if ((ret = avdevice_list_output_sinks(fmt, NULL, opts, &device_list)) < 0) {
2140 printf("Cannot list sinks.\n");
2144 for (i = 0; i < device_list->nb_devices; i++) {
2145 printf("%s %s [%s]\n", device_list->default_device == i ? "*" : " ",
2146 device_list->devices[i]->device_name, device_list->devices[i]->device_description);
2150 avdevice_free_list_devices(&device_list);
2154 static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
2158 char *opts_str = NULL;
2159 av_assert0(dev && opts);
2160 *dev = av_strdup(arg);
2162 return AVERROR(ENOMEM);
2163 if ((opts_str = strchr(*dev, ','))) {
2164 *(opts_str++) = '\0';
2165 if (opts_str[0] && ((ret = av_dict_parse_string(opts, opts_str, "=", ":", 0)) < 0)) {
2171 printf("\nDevice name is not provided.\n"
2172 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2176 int show_sources(void *optctx, const char *opt, const char *arg)
2178 AVInputFormat *fmt = NULL;
2180 AVDictionary *opts = NULL;
2182 int error_level = av_log_get_level();
2184 av_log_set_level(AV_LOG_ERROR);
2186 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2190 fmt = av_input_audio_device_next(fmt);
2192 if (!strcmp(fmt->name, "lavfi"))
2193 continue; //it's pointless to probe lavfi
2194 if (dev && !av_match_name(dev, fmt->name))
2196 print_device_sources(fmt, opts);
2200 fmt = av_input_video_device_next(fmt);
2202 if (dev && !av_match_name(dev, fmt->name))
2204 print_device_sources(fmt, opts);
2208 av_dict_free(&opts);
2210 av_log_set_level(error_level);
2214 int show_sinks(void *optctx, const char *opt, const char *arg)
2216 AVOutputFormat *fmt = NULL;
2218 AVDictionary *opts = NULL;
2220 int error_level = av_log_get_level();
2222 av_log_set_level(AV_LOG_ERROR);
2224 if ((ret = show_sinks_sources_parse_arg(arg, &dev, &opts)) < 0)
2228 fmt = av_output_audio_device_next(fmt);
2230 if (dev && !av_match_name(dev, fmt->name))
2232 print_device_sinks(fmt, opts);
2236 fmt = av_output_video_device_next(fmt);
2238 if (dev && !av_match_name(dev, fmt->name))
2240 print_device_sinks(fmt, opts);
2244 av_dict_free(&opts);
2246 av_log_set_level(error_level);