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"
37 #include "libpostproc/postprocess.h"
38 #include "libavutil/avstring.h"
39 #include "libavutil/mathematics.h"
40 #include "libavutil/parseutils.h"
41 #include "libavutil/pixdesc.h"
42 #include "libavutil/eval.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/opt.h"
48 #include "libavformat/network.h"
50 #if HAVE_SYS_RESOURCE_H
51 #include <sys/resource.h>
54 struct SwsContext *sws_opts;
55 AVDictionary *format_opts, *codec_opts;
57 static const int this_year = 2012;
59 static FILE *report_file;
64 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
69 void uninit_opts(void)
72 sws_freeContext(sws_opts);
75 av_dict_free(&format_opts);
76 av_dict_free(&codec_opts);
79 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
81 vfprintf(stdout, fmt, vl);
84 static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
88 static int print_prefix = 1;
91 av_log_default_callback(ptr, level, fmt, vl);
92 av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
94 fputs(line, report_file);
98 double parse_number_or_die(const char *context, const char *numstr, int type,
99 double min, double max)
103 double d = av_strtod(numstr, &tail);
105 error = "Expected number for %s but found: %s\n";
106 else if (d < min || d > max)
107 error = "The value for %s was %s which is not within %f - %f\n";
108 else if (type == OPT_INT64 && (int64_t)d != d)
109 error = "Expected int64 for %s but found %s\n";
110 else if (type == OPT_INT && (int)d != d)
111 error = "Expected int for %s but found %s\n";
114 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
119 int64_t parse_time_or_die(const char *context, const char *timestr,
123 if (av_parse_time(&us, timestr, is_duration) < 0) {
124 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
125 is_duration ? "duration" : "date", context, timestr);
131 void show_help_options(const OptionDef *options, const char *msg, int mask,
138 for (po = options; po->name != NULL; po++) {
140 if ((po->flags & mask) == value) {
145 av_strlcpy(buf, po->name, sizeof(buf));
146 if (po->flags & HAS_ARG) {
147 av_strlcat(buf, " ", sizeof(buf));
148 av_strlcat(buf, po->argname, sizeof(buf));
150 printf("-%-17s %s\n", buf, po->help);
155 void show_help_children(const AVClass *class, int flags)
157 const AVClass *child = NULL;
158 av_opt_show2(&class, NULL, flags, 0);
161 while (child = av_opt_child_class_next(class, child))
162 show_help_children(child, flags);
165 static const OptionDef *find_option(const OptionDef *po, const char *name)
167 const char *p = strchr(name, ':');
168 int len = p ? p - name : strlen(name);
170 while (po->name != NULL) {
171 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
178 #if defined(_WIN32) && !defined(__MINGW32CE__)
180 /* Will be leaked on exit */
181 static char** win32_argv_utf8 = NULL;
182 static int win32_argc = 0;
185 * Prepare command line arguments for executable.
186 * For Windows - perform wide-char to UTF-8 conversion.
187 * Input arguments should be main() function arguments.
188 * @param argc_ptr Arguments number (including executable)
189 * @param argv_ptr Arguments list.
191 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
195 int i, buffsize = 0, offset = 0;
197 if (win32_argv_utf8) {
198 *argc_ptr = win32_argc;
199 *argv_ptr = win32_argv_utf8;
204 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
205 if (win32_argc <= 0 || !argv_w)
208 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
209 for (i = 0; i < win32_argc; i++)
210 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
211 NULL, 0, NULL, NULL);
213 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
214 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
215 if (win32_argv_utf8 == NULL) {
220 for (i = 0; i < win32_argc; i++) {
221 win32_argv_utf8[i] = &argstr_flat[offset];
222 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
223 &argstr_flat[offset],
224 buffsize - offset, NULL, NULL);
226 win32_argv_utf8[i] = NULL;
229 *argc_ptr = win32_argc;
230 *argv_ptr = win32_argv_utf8;
233 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
237 #endif /* WIN32 && !__MINGW32CE__ */
239 int parse_option(void *optctx, const char *opt, const char *arg,
240 const OptionDef *options)
247 po = find_option(options, opt);
248 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
249 /* handle 'no' bool option */
250 po = find_option(options, opt + 2);
251 if (!(po->name && (po->flags & OPT_BOOL)))
256 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);
610 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
613 static void print_program_info(int flags, int level)
615 const char *indent = flags & INDENT? " " : "";
617 av_log(NULL, level, "%s version " FFMPEG_VERSION, program_name);
618 if (flags & SHOW_COPYRIGHT)
619 av_log(NULL, level, " Copyright (c) %d-%d the FFmpeg developers",
620 program_birth_year, this_year);
621 av_log(NULL, level, "\n");
622 av_log(NULL, level, "%sbuilt on %s %s with %s %s\n",
623 indent, __DATE__, __TIME__, CC_TYPE, CC_VERSION);
624 av_log(NULL, level, "%sconfiguration: " FFMPEG_CONFIGURATION "\n", indent);
627 void show_banner(int argc, char **argv, const OptionDef *options)
629 int idx = locate_option(argc, argv, options, "version");
633 print_program_info (INDENT|SHOW_COPYRIGHT, AV_LOG_INFO);
634 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_INFO);
635 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_INFO);
638 int opt_version(const char *opt, const char *arg) {
639 av_log_set_callback(log_callback_help);
640 print_program_info (0 , AV_LOG_INFO);
641 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
645 int opt_license(const char *opt, const char *arg)
649 "This version of %s has nonfree parts compiled in.\n"
650 "Therefore it is not legally redistributable.\n",
653 "%s is free software; you can redistribute it and/or modify\n"
654 "it under the terms of the GNU General Public License as published by\n"
655 "the Free Software Foundation; either version 3 of the License, or\n"
656 "(at your option) any later version.\n"
658 "%s is distributed in the hope that it will be useful,\n"
659 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
660 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
661 "GNU General Public License for more details.\n"
663 "You should have received a copy of the GNU General Public License\n"
664 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
665 program_name, program_name, program_name
667 "%s is free software; you can redistribute it and/or modify\n"
668 "it under the terms of the GNU General Public License as published by\n"
669 "the Free Software Foundation; either version 2 of the License, or\n"
670 "(at your option) any later version.\n"
672 "%s is distributed in the hope that it will be useful,\n"
673 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
674 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
675 "GNU General Public License for more details.\n"
677 "You should have received a copy of the GNU General Public License\n"
678 "along with %s; if not, write to the Free Software\n"
679 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
680 program_name, program_name, program_name
682 "%s is free software; you can redistribute it and/or modify\n"
683 "it under the terms of the GNU Lesser General Public License as published by\n"
684 "the Free Software Foundation; either version 3 of the License, or\n"
685 "(at your option) any later version.\n"
687 "%s is distributed in the hope that it will be useful,\n"
688 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
689 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
690 "GNU Lesser General Public License for more details.\n"
692 "You should have received a copy of the GNU Lesser General Public License\n"
693 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
694 program_name, program_name, program_name
696 "%s is free software; you can redistribute it and/or\n"
697 "modify it under the terms of the GNU Lesser General Public\n"
698 "License as published by the Free Software Foundation; either\n"
699 "version 2.1 of the License, or (at your option) any later version.\n"
701 "%s is distributed in the hope that it will be useful,\n"
702 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
703 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
704 "Lesser General Public License for more details.\n"
706 "You should have received a copy of the GNU Lesser General Public\n"
707 "License along with %s; if not, write to the Free Software\n"
708 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
709 program_name, program_name, program_name
715 int opt_formats(const char *opt, const char *arg)
717 AVInputFormat *ifmt = NULL;
718 AVOutputFormat *ofmt = NULL;
719 const char *last_name;
721 printf("File formats:\n"
722 " D. = Demuxing supported\n"
723 " .E = Muxing supported\n"
729 const char *name = NULL;
730 const char *long_name = NULL;
732 while ((ofmt = av_oformat_next(ofmt))) {
733 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
734 strcmp(ofmt->name, last_name) > 0) {
736 long_name = ofmt->long_name;
740 while ((ifmt = av_iformat_next(ifmt))) {
741 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
742 strcmp(ifmt->name, last_name) > 0) {
744 long_name = ifmt->long_name;
747 if (name && strcmp(ifmt->name, name) == 0)
754 printf(" %s%s %-15s %s\n",
758 long_name ? long_name:" ");
763 int opt_codecs(const char *opt, const char *arg)
765 AVCodec *p = NULL, *p2;
766 const char *last_name;
768 " D..... = Decoding supported\n"
769 " .E.... = Encoding supported\n"
770 " ..V... = Video codec\n"
771 " ..A... = Audio codec\n"
772 " ..S... = Subtitle codec\n"
773 " ...S.. = Supports draw_horiz_band\n"
774 " ....D. = Supports direct rendering method 1\n"
775 " .....T = Supports weird frame truncation\n"
782 const char *type_str;
785 while ((p = av_codec_next(p))) {
786 if ((p2 == NULL || strcmp(p->name, p2->name) < 0) &&
787 strcmp(p->name, last_name) > 0) {
789 decode = encode = cap = 0;
791 if (p2 && strcmp(p->name, p2->name) == 0) {
796 cap |= p->capabilities;
801 last_name = p2->name;
804 case AVMEDIA_TYPE_VIDEO:
807 case AVMEDIA_TYPE_AUDIO:
810 case AVMEDIA_TYPE_SUBTITLE:
817 printf(" %s%s%s%s%s%s %-15s %s",
818 decode ? "D" : (/* p2->decoder ? "d" : */ " "),
821 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S" : " ",
822 cap & CODEC_CAP_DR1 ? "D" : " ",
823 cap & CODEC_CAP_TRUNCATED ? "T" : " ",
825 p2->long_name ? p2->long_name : "");
827 if (p2->decoder && decode == 0)
828 printf(" use %s for decoding", p2->decoder->name);
833 printf("Note, the names of encoders and decoders do not always match, so there are\n"
834 "several cases where the above table shows encoder only or decoder only entries\n"
835 "even though both encoding and decoding are supported. For example, the h263\n"
836 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
841 int opt_bsfs(const char *opt, const char *arg)
843 AVBitStreamFilter *bsf = NULL;
845 printf("Bitstream filters:\n");
846 while ((bsf = av_bitstream_filter_next(bsf)))
847 printf("%s\n", bsf->name);
852 int opt_protocols(const char *opt, const char *arg)
854 URLProtocol *up=NULL;
856 printf("Supported file protocols:\n"
857 "I.. = Input supported\n"
858 ".O. = Output supported\n"
859 "..S = Seek supported\n"
862 while((up = av_protocol_next(up)))
863 printf("%c%c%c %s\n",
864 up->url_read ? 'I' : '.',
865 up->url_write ? 'O' : '.',
866 up->url_seek ? 'S' : '.',
871 int opt_filters(const char *opt, const char *arg)
873 AVFilter av_unused(**filter) = NULL;
875 printf("Filters:\n");
877 while ((filter = av_filter_next(filter)) && *filter)
878 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
883 int opt_pix_fmts(const char *opt, const char *arg)
885 enum PixelFormat pix_fmt;
887 printf("Pixel formats:\n"
888 "I.... = Supported Input format for conversion\n"
889 ".O... = Supported Output format for conversion\n"
890 "..H.. = Hardware accelerated format\n"
891 "...P. = Paletted format\n"
892 "....B = Bitstream format\n"
893 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
897 # define sws_isSupportedInput(x) 0
898 # define sws_isSupportedOutput(x) 0
901 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
902 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
905 printf("%c%c%c%c%c %-16s %d %2d\n",
906 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
907 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
908 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
909 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
910 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
912 pix_desc->nb_components,
913 av_get_bits_per_pixel(pix_desc));
918 int show_sample_fmts(const char *opt, const char *arg)
922 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
923 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
930 int yesno = (toupper(c) == 'Y');
932 while (c != '\n' && c != EOF)
938 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
941 FILE *f = fopen(filename, "rb");
944 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
946 return AVERROR(errno);
948 fseek(f, 0, SEEK_END);
950 fseek(f, 0, SEEK_SET);
951 *bufptr = av_malloc(*size + 1);
953 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
955 return AVERROR(ENOMEM);
957 ret = fread(*bufptr, 1, *size, f);
961 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
962 filename, strerror(errno));
963 ret = AVERROR(errno);
968 (*bufptr)[*size++] = '\0';
975 FILE *get_preset_file(char *filename, size_t filename_size,
976 const char *preset_name, int is_path,
977 const char *codec_name)
981 const char *base[3] = { getenv("FFMPEG_DATADIR"),
986 av_strlcpy(filename, preset_name, filename_size);
987 f = fopen(filename, "r");
990 char datadir[MAX_PATH], *ls;
993 if (GetModuleFileNameA(GetModuleHandleA(NULL), datadir, sizeof(datadir) - 1))
995 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
996 if (*ls == '\\') *ls = '/';
998 if (ls = strrchr(datadir, '/'))
1001 strncat(datadir, "/ffpresets", sizeof(datadir) - 1 - strlen(datadir));
1006 for (i = 0; i < 3 && !f; i++) {
1009 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
1010 i != 1 ? "" : "/.ffmpeg", preset_name);
1011 f = fopen(filename, "r");
1012 if (!f && codec_name) {
1013 snprintf(filename, filename_size,
1014 "%s%s/%s-%s.ffpreset",
1015 base[i], i != 1 ? "" : "/.ffmpeg", codec_name,
1017 f = fopen(filename, "r");
1025 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
1027 if (*spec <= '9' && *spec >= '0') /* opt:index */
1028 return strtol(spec, NULL, 0) == st->index;
1029 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
1030 *spec == 't') { /* opt:[vasdt] */
1031 enum AVMediaType type;
1034 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
1035 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
1036 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
1037 case 'd': type = AVMEDIA_TYPE_DATA; break;
1038 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
1039 default: abort(); // never reached, silence warning
1041 if (type != st->codec->codec_type)
1043 if (*spec++ == ':') { /* possibly followed by :index */
1044 int i, index = strtol(spec, NULL, 0);
1045 for (i = 0; i < s->nb_streams; i++)
1046 if (s->streams[i]->codec->codec_type == type && index-- == 0)
1047 return i == st->index;
1051 } else if (*spec == 'p' && *(spec + 1) == ':') {
1055 prog_id = strtol(spec, &endptr, 0);
1056 for (i = 0; i < s->nb_programs; i++) {
1057 if (s->programs[i]->id != prog_id)
1060 if (*endptr++ == ':') {
1061 int stream_idx = strtol(endptr, NULL, 0);
1062 return stream_idx >= 0 &&
1063 stream_idx < s->programs[i]->nb_stream_indexes &&
1064 st->index == s->programs[i]->stream_index[stream_idx];
1067 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
1068 if (st->index == s->programs[i]->stream_index[j])
1072 } else if (!*spec) /* empty specifier, matches everything */
1075 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
1076 return AVERROR(EINVAL);
1079 AVDictionary *filter_codec_opts(AVDictionary *opts, AVCodec *codec,
1080 AVFormatContext *s, AVStream *st)
1082 AVDictionary *ret = NULL;
1083 AVDictionaryEntry *t = NULL;
1084 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
1085 : AV_OPT_FLAG_DECODING_PARAM;
1087 const AVClass *cc = avcodec_get_class();
1092 switch (codec->type) {
1093 case AVMEDIA_TYPE_VIDEO:
1095 flags |= AV_OPT_FLAG_VIDEO_PARAM;
1097 case AVMEDIA_TYPE_AUDIO:
1099 flags |= AV_OPT_FLAG_AUDIO_PARAM;
1101 case AVMEDIA_TYPE_SUBTITLE:
1103 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
1107 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
1108 char *p = strchr(t->key, ':');
1110 /* check stream specification in opt name */
1112 switch (check_stream_specifier(s, st, p + 1)) {
1113 case 1: *p = 0; break;
1115 default: return NULL;
1118 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
1119 (codec && codec->priv_class &&
1120 av_opt_find(&codec->priv_class, t->key, NULL, flags,
1121 AV_OPT_SEARCH_FAKE_OBJ)))
1122 av_dict_set(&ret, t->key, t->value, 0);
1123 else if (t->key[0] == prefix &&
1124 av_opt_find(&cc, t->key + 1, NULL, flags,
1125 AV_OPT_SEARCH_FAKE_OBJ))
1126 av_dict_set(&ret, t->key + 1, t->value, 0);
1134 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1135 AVDictionary *codec_opts)
1138 AVDictionary **opts;
1142 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1144 av_log(NULL, AV_LOG_ERROR,
1145 "Could not alloc memory for stream options.\n");
1148 for (i = 0; i < s->nb_streams; i++)
1149 opts[i] = filter_codec_opts(codec_opts, avcodec_find_decoder(s->streams[i]->codec->codec_id),
1154 void *grow_array(void *array, int elem_size, int *size, int new_size)
1156 if (new_size >= INT_MAX / elem_size) {
1157 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1160 if (*size < new_size) {
1161 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1163 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1166 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);