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
27 /* Include only the enabled headers since some compilers (namely, Sun
28 Studio) will not omit unused inline functions and create undefined
29 references to libraries that are not being built. */
32 #include "libavformat/avformat.h"
33 #include "libavfilter/avfilter.h"
34 #include "libavdevice/avdevice.h"
35 #include "libswscale/swscale.h"
36 #include "libswresample/swresample.h"
38 #include "libpostproc/postprocess.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/mathematics.h"
42 #include "libavutil/parseutils.h"
43 #include "libavutil/pixdesc.h"
44 #include "libavutil/eval.h"
45 #include "libavutil/dict.h"
46 #include "libavutil/opt.h"
50 #include "libavformat/network.h"
52 #if HAVE_SYS_RESOURCE_H
53 #include <sys/resource.h>
56 struct SwsContext *sws_opts;
57 AVDictionary *format_opts, *codec_opts;
59 const int this_year = 2012;
61 static FILE *report_file;
66 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
71 void uninit_opts(void)
74 sws_freeContext(sws_opts);
77 av_dict_free(&format_opts);
78 av_dict_free(&codec_opts);
81 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
83 vfprintf(stdout, fmt, vl);
86 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
90 static int print_prefix = 1;
93 av_log_default_callback(ptr, level, fmt, vl);
94 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
96 fputs(line, report_file);
100 double parse_number_or_die(const char *context, const char *numstr, int type,
101 double min, double max)
105 double d = av_strtod(numstr, &tail);
107 error = "Expected number for %s but found: %s\n";
108 else if (d < min || d > max)
109 error = "The value for %s was %s which is not within %f - %f\n";
110 else if (type == OPT_INT64 && (int64_t)d != d)
111 error = "Expected int64 for %s but found %s\n";
112 else if (type == OPT_INT && (int)d != d)
113 error = "Expected int for %s but found %s\n";
116 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
121 int64_t parse_time_or_die(const char *context, const char *timestr,
125 if (av_parse_time(&us, timestr, is_duration) < 0) {
126 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
127 is_duration ? "duration" : "date", context, timestr);
133 void show_help_options(const OptionDef *options, const char *msg, int mask,
140 for (po = options; po->name != NULL; po++) {
142 if ((po->flags & mask) == value) {
147 av_strlcpy(buf, po->name, sizeof(buf));
148 if (po->flags & HAS_ARG) {
149 av_strlcat(buf, " ", sizeof(buf));
150 av_strlcat(buf, po->argname, sizeof(buf));
152 printf("-%-17s %s\n", buf, po->help);
157 void show_help_children(const AVClass *class, int flags)
159 const AVClass *child = NULL;
160 av_opt_show2(&class, NULL, flags, 0);
163 while (child = av_opt_child_class_next(class, child))
164 show_help_children(child, flags);
167 static const OptionDef *find_option(const OptionDef *po, const char *name)
169 const char *p = strchr(name, ':');
170 int len = p ? p - name : strlen(name);
172 while (po->name != NULL) {
173 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
180 #if defined(_WIN32) && !defined(__MINGW32CE__)
182 /* Will be leaked on exit */
183 static char** win32_argv_utf8 = NULL;
184 static int win32_argc = 0;
187 * Prepare command line arguments for executable.
188 * For Windows - perform wide-char to UTF-8 conversion.
189 * Input arguments should be main() function arguments.
190 * @param argc_ptr Arguments number (including executable)
191 * @param argv_ptr Arguments list.
193 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
197 int i, buffsize = 0, offset = 0;
199 if (win32_argv_utf8) {
200 *argc_ptr = win32_argc;
201 *argv_ptr = win32_argv_utf8;
206 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
207 if (win32_argc <= 0 || !argv_w)
210 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
211 for (i = 0; i < win32_argc; i++)
212 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
213 NULL, 0, NULL, NULL);
215 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
216 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
217 if (win32_argv_utf8 == NULL) {
222 for (i = 0; i < win32_argc; i++) {
223 win32_argv_utf8[i] = &argstr_flat[offset];
224 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
225 &argstr_flat[offset],
226 buffsize - offset, NULL, NULL);
228 win32_argv_utf8[i] = NULL;
231 *argc_ptr = win32_argc;
232 *argv_ptr = win32_argv_utf8;
235 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
239 #endif /* WIN32 && !__MINGW32CE__ */
241 int parse_option(void *optctx, const char *opt, const char *arg,
242 const OptionDef *options)
249 po = find_option(options, opt);
250 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
251 /* handle 'no' bool option */
252 po = find_option(options, opt + 2);
253 if ((po->name && (po->flags & OPT_BOOL)))
257 po = find_option(options, "default");
259 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
260 return AVERROR(EINVAL);
262 if (po->flags & HAS_ARG && !arg) {
263 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
264 return AVERROR(EINVAL);
267 /* new-style options contain an offset into optctx, old-style address of
269 dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? (uint8_t *)optctx + po->u.off
272 if (po->flags & OPT_SPEC) {
273 SpecifierOpt **so = dst;
274 char *p = strchr(opt, ':');
276 dstcount = (int *)(so + 1);
277 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
278 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
279 dst = &(*so)[*dstcount - 1].u;
282 if (po->flags & OPT_STRING) {
284 str = av_strdup(arg);
286 } else if (po->flags & OPT_BOOL) {
287 *(int *)dst = bool_val;
288 } else if (po->flags & OPT_INT) {
289 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
290 } else if (po->flags & OPT_INT64) {
291 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
292 } else if (po->flags & OPT_TIME) {
293 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
294 } else if (po->flags & OPT_FLOAT) {
295 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
296 } else if (po->flags & OPT_DOUBLE) {
297 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
298 } else if (po->u.func_arg) {
299 int ret = po->flags & OPT_FUNC2 ? po->u.func2_arg(optctx, opt, arg)
300 : po->u.func_arg(opt, arg);
302 av_log(NULL, AV_LOG_ERROR,
303 "Failed to set value '%s' for option '%s'\n", arg, opt);
307 if (po->flags & OPT_EXIT)
309 return !!(po->flags & HAS_ARG);
312 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
313 void (*parse_arg_function)(void *, const char*))
316 int optindex, handleoptions = 1, ret;
318 /* perform system-dependent conversions for arguments list */
319 prepare_app_arguments(&argc, &argv);
323 while (optindex < argc) {
324 opt = argv[optindex++];
326 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
327 if (opt[1] == '-' && opt[2] == '\0') {
333 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
337 if (parse_arg_function)
338 parse_arg_function(optctx, opt);
344 * Return index of option opt in argv or 0 if not found.
346 static int locate_option(int argc, char **argv, const OptionDef *options,
352 for (i = 1; i < argc; i++) {
353 const char *cur_opt = argv[i];
355 if (*cur_opt++ != '-')
358 po = find_option(options, cur_opt);
359 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
360 po = find_option(options, cur_opt + 2);
362 if ((!po->name && !strcmp(cur_opt, optname)) ||
363 (po->name && !strcmp(optname, po->name)))
366 if (!po || po->flags & HAS_ARG)
372 static void dump_argument(const char *a)
374 const unsigned char *p;
377 if (!((*p >= '+' && *p <= ':') || (*p >= '@' && *p <= 'Z') ||
378 *p == '_' || (*p >= 'a' && *p <= 'z')))
381 fputs(a, report_file);
384 fputc('"', report_file);
385 for (p = a; *p; p++) {
386 if (*p == '\\' || *p == '"' || *p == '$' || *p == '`')
387 fprintf(report_file, "\\%c", *p);
388 else if (*p < ' ' || *p > '~')
389 fprintf(report_file, "\\x%02x", *p);
391 fputc(*p, report_file);
393 fputc('"', report_file);
396 void parse_loglevel(int argc, char **argv, const OptionDef *options)
398 int idx = locate_option(argc, argv, options, "loglevel");
400 idx = locate_option(argc, argv, options, "v");
401 if (idx && argv[idx + 1])
402 opt_loglevel("loglevel", argv[idx + 1]);
403 idx = locate_option(argc, argv, options, "report");
404 if (idx || getenv("FFREPORT")) {
405 opt_report("report");
408 fprintf(report_file, "Command line:\n");
409 for (i = 0; i < argc; i++) {
410 dump_argument(argv[i]);
411 fputc(i < argc - 1 ? ' ' : '\n', report_file);
418 #define FLAGS(o) ((o)->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
419 int opt_default(const char *opt, const char *arg)
421 const AVOption *oc, *of, *os;
422 char opt_stripped[128];
424 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(), *sc;
426 if (!(p = strchr(opt, ':')))
427 p = opt + strlen(opt);
428 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
430 if ((oc = av_opt_find(&cc, opt_stripped, NULL, 0,
431 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
432 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
433 (oc = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
434 av_dict_set(&codec_opts, opt, arg, FLAGS(oc));
435 if ((of = av_opt_find(&fc, opt, NULL, 0,
436 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
437 av_dict_set(&format_opts, opt, arg, FLAGS(of));
439 sc = sws_get_class();
440 if ((os = av_opt_find(&sc, opt, NULL, 0,
441 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
442 // XXX we only support sws_flags, not arbitrary sws options
443 int ret = av_opt_set(sws_opts, opt, arg, 0);
445 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
453 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
454 return AVERROR_OPTION_NOT_FOUND;
457 int opt_loglevel(const char *opt, const char *arg)
459 const struct { const char *name; int level; } log_levels[] = {
460 { "quiet" , AV_LOG_QUIET },
461 { "panic" , AV_LOG_PANIC },
462 { "fatal" , AV_LOG_FATAL },
463 { "error" , AV_LOG_ERROR },
464 { "warning", AV_LOG_WARNING },
465 { "info" , AV_LOG_INFO },
466 { "verbose", AV_LOG_VERBOSE },
467 { "debug" , AV_LOG_DEBUG },
473 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
474 if (!strcmp(log_levels[i].name, arg)) {
475 av_log_set_level(log_levels[i].level);
480 level = strtol(arg, &tail, 10);
482 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
483 "Possible levels are numbers or:\n", arg);
484 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
485 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
488 av_log_set_level(level);
492 int opt_report(const char *opt)
498 if (report_file) /* already opened */
501 tm = localtime(&now);
502 snprintf(filename, sizeof(filename), "%s-%04d%02d%02d-%02d%02d%02d.log",
504 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
505 tm->tm_hour, tm->tm_min, tm->tm_sec);
506 report_file = fopen(filename, "w");
508 av_log(NULL, AV_LOG_ERROR, "Failed to open report \"%s\": %s\n",
509 filename, strerror(errno));
510 return AVERROR(errno);
512 av_log_set_callback(log_callback_report);
513 av_log(NULL, AV_LOG_INFO,
514 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
515 "Report written to \"%s\"\n",
517 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
518 tm->tm_hour, tm->tm_min, tm->tm_sec,
520 av_log_set_level(FFMAX(av_log_get_level(), AV_LOG_VERBOSE));
524 int opt_max_alloc(const char *opt, const char *arg)
529 max = strtol(arg, &tail, 10);
531 av_log(NULL, AV_LOG_FATAL, "Invalid max_alloc \"%s\".\n", arg);
538 int opt_codec_debug(const char *opt, const char *arg)
540 av_log_set_level(AV_LOG_DEBUG);
541 return opt_default(opt, arg);
544 int opt_timelimit(const char *opt, const char *arg)
547 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
548 struct rlimit rl = { lim, lim + 1 };
549 if (setrlimit(RLIMIT_CPU, &rl))
552 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
557 void print_error(const char *filename, int err)
560 const char *errbuf_ptr = errbuf;
562 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
563 errbuf_ptr = strerror(AVUNERROR(err));
564 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
567 static int warned_cfg = 0;
570 #define SHOW_VERSION 2
571 #define SHOW_CONFIG 4
572 #define SHOW_COPYRIGHT 8
574 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
575 if (CONFIG_##LIBNAME) { \
576 const char *indent = flags & INDENT? " " : ""; \
577 if (flags & SHOW_VERSION) { \
578 unsigned int version = libname##_version(); \
579 av_log(NULL, level, "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n",\
581 LIB##LIBNAME##_VERSION_MAJOR, \
582 LIB##LIBNAME##_VERSION_MINOR, \
583 LIB##LIBNAME##_VERSION_MICRO, \
584 version >> 16, version >> 8 & 0xff, version & 0xff); \
586 if (flags & SHOW_CONFIG) { \
587 const char *cfg = libname##_configuration(); \
588 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
590 av_log(NULL, level, \
591 "%sWARNING: library configuration mismatch\n", \
595 av_log(NULL, level, "%s%-11s configuration: %s\n", \
596 indent, #libname, cfg); \
601 static void print_all_libs_info(int flags, int level)
603 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
604 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
605 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
606 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
607 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
608 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
609 PRINT_LIB_INFO(swresample,SWRESAMPLE, flags, level);
611 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
615 static void print_program_info(int flags, int level)
617 const char *indent = flags & INDENT? " " : "";
619 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
620 if (flags & SHOW_COPYRIGHT)
621 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
622 program_birth_year, this_year);
623 av_log(NULL, level, "\n");
624 av_log(NULL, level, "%sbuilt on %s %s with %s %s\n",
625 indent, __DATE__, __TIME__, CC_TYPE, CC_VERSION);
626 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
629 void show_banner(int argc, char **argv, const OptionDef *options)
631 int idx = locate_option(argc, argv, options, "version");
635 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
636 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
637 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
640 int opt_version(const char *opt, const char *arg) {
641 av_log_set_callback(log_callback_help);
642 print_program_info (0 , AV_LOG_INFO);
643 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
647 int opt_license(const char *opt, const char *arg)
651 "This version of %s has nonfree parts compiled in.\n"
652 "Therefore it is not legally redistributable.\n",
655 "%s is free software; you can redistribute it and/or modify\n"
656 "it under the terms of the GNU General Public License as published by\n"
657 "the Free Software Foundation; either version 3 of the License, or\n"
658 "(at your option) any later version.\n"
660 "%s is distributed in the hope that it will be useful,\n"
661 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
662 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
663 "GNU General Public License for more details.\n"
665 "You should have received a copy of the GNU General Public License\n"
666 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
667 program_name, program_name, program_name
669 "%s is free software; you can redistribute it and/or modify\n"
670 "it under the terms of the GNU General Public License as published by\n"
671 "the Free Software Foundation; either version 2 of the License, or\n"
672 "(at your option) any later version.\n"
674 "%s is distributed in the hope that it will be useful,\n"
675 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
676 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
677 "GNU General Public License for more details.\n"
679 "You should have received a copy of the GNU General Public License\n"
680 "along with %s; if not, write to the Free Software\n"
681 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
682 program_name, program_name, program_name
684 "%s is free software; you can redistribute it and/or modify\n"
685 "it under the terms of the GNU Lesser General Public License as published by\n"
686 "the Free Software Foundation; either version 3 of the License, or\n"
687 "(at your option) any later version.\n"
689 "%s is distributed in the hope that it will be useful,\n"
690 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
691 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
692 "GNU Lesser General Public License for more details.\n"
694 "You should have received a copy of the GNU Lesser General Public License\n"
695 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
696 program_name, program_name, program_name
698 "%s is free software; you can redistribute it and/or\n"
699 "modify it under the terms of the GNU Lesser General Public\n"
700 "License as published by the Free Software Foundation; either\n"
701 "version 2.1 of the License, or (at your option) any later version.\n"
703 "%s is distributed in the hope that it will be useful,\n"
704 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
705 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
706 "Lesser General Public License for more details.\n"
708 "You should have received a copy of the GNU Lesser General Public\n"
709 "License along with %s; if not, write to the Free Software\n"
710 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
711 program_name, program_name, program_name
717 int opt_formats(const char *opt, const char *arg)
719 AVInputFormat *ifmt = NULL;
720 AVOutputFormat *ofmt = NULL;
721 const char *last_name;
723 printf("File formats:\n"
724 " D. = Demuxing supported\n"
725 " .E = Muxing supported\n"
731 const char *name = NULL;
732 const char *long_name = NULL;
734 while ((ofmt = av_oformat_next(ofmt))) {
735 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
736 strcmp(ofmt->name, last_name) > 0) {
738 long_name = ofmt->long_name;
742 while ((ifmt = av_iformat_next(ifmt))) {
743 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
744 strcmp(ifmt->name, last_name) > 0) {
746 long_name = ifmt->long_name;
749 if (name && strcmp(ifmt->name, name) == 0)
756 printf(" %s%s %-15s %s\n",
760 long_name ? long_name:" ");
765 static char get_media_type_char(enum AVMediaType type)
767 static const char map[AVMEDIA_TYPE_NB] = {
768 [AVMEDIA_TYPE_VIDEO] = 'V',
769 [AVMEDIA_TYPE_AUDIO] = 'A',
770 [AVMEDIA_TYPE_DATA] = 'D',
771 [AVMEDIA_TYPE_SUBTITLE] = 'S',
772 [AVMEDIA_TYPE_ATTACHMENT] = 'T',
774 return type >= 0 && type < AVMEDIA_TYPE_NB && map[type] ? map[type] : '?';
777 int opt_codecs(const char *opt, const char *arg)
779 AVCodec *p = NULL, *p2;
780 const char *last_name;
782 " D..... = Decoding supported\n"
783 " .E.... = Encoding supported\n"
784 " ..V... = Video codec\n"
785 " ..A... = Audio codec\n"
786 " ..S... = Subtitle codec\n"
787 " ...S.. = Supports draw_horiz_band\n"
788 " ....D. = Supports direct rendering method 1\n"
789 " .....T = Supports weird frame truncation\n"
798 while ((p = av_codec_next(p))) {
799 if ((p2 == NULL || strcmp(p->name, p2->name) < 0) &&
800 strcmp(p->name, last_name) > 0) {
802 decode = encode = cap = 0;
804 if (p2 && strcmp(p->name, p2->name) == 0) {
809 cap |= p->capabilities;
814 last_name = p2->name;
816 printf(" %s%s%c%s%s%s %-15s %s",
817 decode ? "D" : (/* p2->decoder ? "d" : */ " "),
819 get_media_type_char(p2->type),
820 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S" : " ",
821 cap & CODEC_CAP_DR1 ? "D" : " ",
822 cap & CODEC_CAP_TRUNCATED ? "T" : " ",
824 p2->long_name ? p2->long_name : "");
826 if (p2->decoder && decode == 0)
827 printf(" use %s for decoding", p2->decoder->name);
832 printf("Note, the names of encoders and decoders do not always match, so there are\n"
833 "several cases where the above table shows encoder only or decoder only entries\n"
834 "even though both encoding and decoding are supported. For example, the h263\n"
835 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
840 int opt_bsfs(const char *opt, const char *arg)
842 AVBitStreamFilter *bsf = NULL;
844 printf("Bitstream filters:\n");
845 while ((bsf = av_bitstream_filter_next(bsf)))
846 printf("%s\n", bsf->name);
851 int opt_protocols(const char *opt, const char *arg)
856 printf("Supported file protocols:\n"
858 while ((name = avio_enum_protocols(&opaque, 0)))
859 printf("%s\n", name);
861 while ((name = avio_enum_protocols(&opaque, 1)))
862 printf("%s\n", name);
866 int opt_filters(const char *opt, const char *arg)
868 AVFilter av_unused(**filter) = NULL;
869 char descr[64], *descr_cur;
871 const AVFilterPad *pad;
873 printf("Filters:\n");
875 while ((filter = av_filter_next(filter)) && *filter) {
877 for (i = 0; i < 2; i++) {
879 *(descr_cur++) = '-';
880 *(descr_cur++) = '>';
882 pad = i ? (*filter)->outputs : (*filter)->inputs;
883 for (j = 0; pad[j].name; j++) {
884 if (descr_cur >= descr + sizeof(descr) - 4)
886 *(descr_cur++) = get_media_type_char(pad[j].type);
889 *(descr_cur++) = '|';
892 printf("%-16s %-10s %s\n", (*filter)->name, descr, (*filter)->description);
898 int opt_pix_fmts(const char *opt, const char *arg)
900 enum PixelFormat pix_fmt;
902 printf("Pixel formats:\n"
903 "I.... = Supported Input format for conversion\n"
904 ".O... = Supported Output format for conversion\n"
905 "..H.. = Hardware accelerated format\n"
906 "...P. = Paletted format\n"
907 "....B = Bitstream format\n"
908 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
912 # define sws_isSupportedInput(x) 0
913 # define sws_isSupportedOutput(x) 0
916 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
917 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
920 printf("%c%c%c%c%c %-16s %d %2d\n",
921 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
922 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
923 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
924 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
925 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
927 pix_desc->nb_components,
928 av_get_bits_per_pixel(pix_desc));
933 int show_sample_fmts(const char *opt, const char *arg)
937 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
938 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
945 int yesno = (toupper(c) == 'Y');
947 while (c != '\n' && c != EOF)
953 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
956 FILE *f = fopen(filename, "rb");
959 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
961 return AVERROR(errno);
963 fseek(f, 0, SEEK_END);
965 fseek(f, 0, SEEK_SET);
966 *bufptr = av_malloc(*size + 1);
968 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
970 return AVERROR(ENOMEM);
972 ret = fread(*bufptr, 1, *size, f);
976 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
977 filename, strerror(errno));
978 ret = AVERROR(errno);
983 (*bufptr)[*size++] = '\0';
990 FILE *get_preset_file(char *filename, size_t filename_size,
991 const char *preset_name, int is_path,
992 const char *codec_name)
996 const char *base[3] = { getenv("FFMPEG_DATADIR"),
1001 av_strlcpy(filename, preset_name, filename_size);
1002 f = fopen(filename, "r");
1005 char datadir[MAX_PATH], *ls;
1008 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
1010 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1011 if (*ls == '\\') *ls = '/';
1013 if (ls = strrchr(datadir, '/'))
1016 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1021 for (i = 0; i < 3 && !f; i++) {
1024 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1025 i != 1 ? "" : "/.ffmpeg", preset_name);
1026 f = fopen(filename, "r");
1027 if (!f && codec_name) {
1028 snprintf(filename, filename_size,
1029 "%s%s/%s-%s.ffpreset",
1030 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1032 f = fopen(filename, "r");
1040 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1042 if (*spec <= '9' && *spec >= '0') /* opt:index */
1043 return strtol(spec, NULL, 0) == st->index;
1044 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
1045 *spec == 't') { /* opt:[vasdt] */
1046 enum AVMediaType type;
1049 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
1050 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
1051 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
1052 case 'd': type = AVMEDIA_TYPE_DATA; break;
1053 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
1054 default: abort(); // never reached, silence warning
1056 if (type != st->codec->codec_type)
1058 if (*spec++ == ':') { /* possibly followed by :index */
1059 int i, index = strtol(spec, NULL, 0);
1060 for (i = 0; i < s->nb_streams; i++)
1061 if (s->streams[i]->codec->codec_type == type && index-- == 0)
1062 return i == st->index;
1066 } else if (*spec == 'p' && *(spec + 1) == ':') {
1070 prog_id = strtol(spec, &endptr, 0);
1071 for (i = 0; i < s->nb_programs; i++) {
1072 if (s->programs[i]->id != prog_id)
1075 if (*endptr++ == ':') {
1076 int stream_idx = strtol(endptr, NULL, 0);
1077 return stream_idx >= 0 &&
1078 stream_idx < s->programs[i]->nb_stream_indexes &&
1079 st->index == s->programs[i]->stream_index[stream_idx];
1082 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
1083 if (st->index == s->programs[i]->stream_index[j])
1087 } else if (!*spec) /* empty specifier, matches everything */
1090 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1091 return AVERROR(EINVAL);
1094 AVDictionary *filter_codec_opts(AVDictionary *opts, AVCodec *codec,
1095 AVFormatContext *s, AVStream *st)
1097 AVDictionary *ret = NULL;
1098 AVDictionaryEntry *t = NULL;
1099 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1100 : AV_OPT_FLAG_DECODING_PARAM;
1102 const AVClass *cc = avcodec_get_class();
1107 switch (codec->type) {
1108 case AVMEDIA_TYPE_VIDEO:
1110 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1112 case AVMEDIA_TYPE_AUDIO:
1114 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1116 case AVMEDIA_TYPE_SUBTITLE:
1118 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1122 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1123 char *p = strchr(t->key, ':');
1125 /* check stream specification in opt name */
1127 switch (check_stream_specifier(s, st, p + 1)) {
1128 case 1: *p = 0; break;
1130 default: return NULL;
1133 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1134 (codec && codec->priv_class &&
1135 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1136 AV_OPT_SEARCH_FAKE_OBJ)))
1137 av_dict_set(&ret, t->key, t->value, 0);
1138 else if (t->key[0] == prefix &&
1139 av_opt_find(&cc, t->key + 1, NULL, flags,
1140 AV_OPT_SEARCH_FAKE_OBJ))
1141 av_dict_set(&ret, t->key + 1, t->value, 0);
1149 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1150 AVDictionary *codec_opts)
1153 AVDictionary **opts;
1157 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1159 av_log(NULL, AV_LOG_ERROR,
1160 "Could not alloc memory for stream options.\n");
1163 for (i = 0; i < s->nb_streams; i++)
1164 opts[i] = filter_codec_opts(codec_opts, avcodec_find_decoder(s->streams[i]->codec->codec_id),
1169 void *grow_array(void *array, int elem_size, int *size, int new_size)
1171 if (new_size >= INT_MAX / elem_size) {
1172 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1175 if (*size < new_size) {
1176 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1178 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1181 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);