2 * Various utilities for command line tools
3 * Copyright (c) 2000-2003 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav 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 * Libav 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 Libav; 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 "libavresample/avresample.h"
36 #include "libswscale/swscale.h"
37 #include "libavutil/avassert.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;
62 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
67 void uninit_opts(void)
70 sws_freeContext(sws_opts);
73 av_dict_free(&format_opts);
74 av_dict_free(&codec_opts);
77 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
79 vfprintf(stdout, fmt, vl);
82 double parse_number_or_die(const char *context, const char *numstr, int type,
83 double min, double max)
87 double d = av_strtod(numstr, &tail);
89 error = "Expected number for %s but found: %s\n";
90 else if (d < min || d > max)
91 error = "The value for %s was %s which is not within %f - %f\n";
92 else if (type == OPT_INT64 && (int64_t)d != d)
93 error = "Expected int64 for %s but found %s\n";
94 else if (type == OPT_INT && (int)d != d)
95 error = "Expected int for %s but found %s\n";
98 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
103 int64_t parse_time_or_die(const char *context, const char *timestr,
107 if (av_parse_time(&us, timestr, is_duration) < 0) {
108 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
109 is_duration ? "duration" : "date", context, timestr);
115 void show_help_options(const OptionDef *options, const char *msg, int mask,
122 for (po = options; po->name != NULL; po++) {
124 if ((po->flags & mask) == value) {
129 av_strlcpy(buf, po->name, sizeof(buf));
130 if (po->flags & HAS_ARG) {
131 av_strlcat(buf, " ", sizeof(buf));
132 av_strlcat(buf, po->argname, sizeof(buf));
134 printf("-%-17s %s\n", buf, po->help);
139 void show_help_children(const AVClass *class, int flags)
141 const AVClass *child = NULL;
142 av_opt_show2(&class, NULL, flags, 0);
145 while (child = av_opt_child_class_next(class, child))
146 show_help_children(child, flags);
149 static const OptionDef *find_option(const OptionDef *po, const char *name)
151 const char *p = strchr(name, ':');
152 int len = p ? p - name : strlen(name);
154 while (po->name != NULL) {
155 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
162 #if defined(_WIN32) && !defined(__MINGW32CE__)
164 /* Will be leaked on exit */
165 static char** win32_argv_utf8 = NULL;
166 static int win32_argc = 0;
169 * Prepare command line arguments for executable.
170 * For Windows - perform wide-char to UTF-8 conversion.
171 * Input arguments should be main() function arguments.
172 * @param argc_ptr Arguments number (including executable)
173 * @param argv_ptr Arguments list.
175 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
179 int i, buffsize = 0, offset = 0;
181 if (win32_argv_utf8) {
182 *argc_ptr = win32_argc;
183 *argv_ptr = win32_argv_utf8;
188 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
189 if (win32_argc <= 0 || !argv_w)
192 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
193 for (i = 0; i < win32_argc; i++)
194 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
195 NULL, 0, NULL, NULL);
197 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
198 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
199 if (win32_argv_utf8 == NULL) {
204 for (i = 0; i < win32_argc; i++) {
205 win32_argv_utf8[i] = &argstr_flat[offset];
206 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
207 &argstr_flat[offset],
208 buffsize - offset, NULL, NULL);
210 win32_argv_utf8[i] = NULL;
213 *argc_ptr = win32_argc;
214 *argv_ptr = win32_argv_utf8;
217 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
221 #endif /* WIN32 && !__MINGW32CE__ */
223 int parse_option(void *optctx, const char *opt, const char *arg,
224 const OptionDef *options)
231 po = find_option(options, opt);
232 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
233 /* handle 'no' bool option */
234 po = find_option(options, opt + 2);
235 if ((po->name && (po->flags & OPT_BOOL)))
239 po = find_option(options, "default");
241 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
242 return AVERROR(EINVAL);
244 if (po->flags & HAS_ARG && !arg) {
245 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
246 return AVERROR(EINVAL);
249 /* new-style options contain an offset into optctx, old-style address of
251 dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? (uint8_t *)optctx + po->u.off
254 if (po->flags & OPT_SPEC) {
255 SpecifierOpt **so = dst;
256 char *p = strchr(opt, ':');
258 dstcount = (int *)(so + 1);
259 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
260 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
261 dst = &(*so)[*dstcount - 1].u;
264 if (po->flags & OPT_STRING) {
266 str = av_strdup(arg);
268 } else if (po->flags & OPT_BOOL) {
269 *(int *)dst = bool_val;
270 } else if (po->flags & OPT_INT) {
271 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
272 } else if (po->flags & OPT_INT64) {
273 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
274 } else if (po->flags & OPT_TIME) {
275 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
276 } else if (po->flags & OPT_FLOAT) {
277 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
278 } else if (po->flags & OPT_DOUBLE) {
279 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
280 } else if (po->u.func_arg) {
281 int ret = po->flags & OPT_FUNC2 ? po->u.func2_arg(optctx, opt, arg)
282 : po->u.func_arg(opt, arg);
284 av_log(NULL, AV_LOG_ERROR,
285 "Failed to set value '%s' for option '%s'\n", arg, opt);
289 if (po->flags & OPT_EXIT)
291 return !!(po->flags & HAS_ARG);
294 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
295 void (*parse_arg_function)(void *, const char*))
298 int optindex, handleoptions = 1, ret;
300 /* perform system-dependent conversions for arguments list */
301 prepare_app_arguments(&argc, &argv);
305 while (optindex < argc) {
306 opt = argv[optindex++];
308 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
309 if (opt[1] == '-' && opt[2] == '\0') {
315 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
319 if (parse_arg_function)
320 parse_arg_function(optctx, opt);
325 int locate_option(int argc, char **argv, const OptionDef *options,
331 for (i = 1; i < argc; i++) {
332 const char *cur_opt = argv[i];
334 if (*cur_opt++ != '-')
337 po = find_option(options, cur_opt);
338 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
339 po = find_option(options, cur_opt + 2);
341 if ((!po->name && !strcmp(cur_opt, optname)) ||
342 (po->name && !strcmp(optname, po->name)))
345 if (!po || po->flags & HAS_ARG)
351 void parse_loglevel(int argc, char **argv, const OptionDef *options)
353 int idx = locate_option(argc, argv, options, "loglevel");
355 idx = locate_option(argc, argv, options, "v");
356 if (idx && argv[idx + 1])
357 opt_loglevel("loglevel", argv[idx + 1]);
360 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
361 int opt_default(const char *opt, const char *arg)
364 char opt_stripped[128];
366 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(), *sc = sws_get_class();
368 if (!(p = strchr(opt, ':')))
369 p = opt + strlen(opt);
370 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
372 if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
373 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
374 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
375 (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
376 av_dict_set(&codec_opts, opt, arg, FLAGS);
377 else if ((o = av_opt_find(&fc, opt, NULL, 0,
378 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
379 av_dict_set(&format_opts, opt, arg, FLAGS);
380 else if ((o = av_opt_find(&sc, opt, NULL, 0,
381 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
382 // XXX we only support sws_flags, not arbitrary sws options
383 int ret = av_opt_set(sws_opts, opt, arg, 0);
385 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
392 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
393 return AVERROR_OPTION_NOT_FOUND;
396 int opt_loglevel(const char *opt, const char *arg)
398 const struct { const char *name; int level; } log_levels[] = {
399 { "quiet" , AV_LOG_QUIET },
400 { "panic" , AV_LOG_PANIC },
401 { "fatal" , AV_LOG_FATAL },
402 { "error" , AV_LOG_ERROR },
403 { "warning", AV_LOG_WARNING },
404 { "info" , AV_LOG_INFO },
405 { "verbose", AV_LOG_VERBOSE },
406 { "debug" , AV_LOG_DEBUG },
412 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
413 if (!strcmp(log_levels[i].name, arg)) {
414 av_log_set_level(log_levels[i].level);
419 level = strtol(arg, &tail, 10);
421 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
422 "Possible levels are numbers or:\n", arg);
423 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
424 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
427 av_log_set_level(level);
431 int opt_timelimit(const char *opt, const char *arg)
434 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
435 struct rlimit rl = { lim, lim + 1 };
436 if (setrlimit(RLIMIT_CPU, &rl))
439 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
444 void print_error(const char *filename, int err)
447 const char *errbuf_ptr = errbuf;
449 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
450 errbuf_ptr = strerror(AVUNERROR(err));
451 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
454 static int warned_cfg = 0;
457 #define SHOW_VERSION 2
458 #define SHOW_CONFIG 4
460 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
461 if (CONFIG_##LIBNAME) { \
462 const char *indent = flags & INDENT? " " : ""; \
463 if (flags & SHOW_VERSION) { \
464 unsigned int version = libname##_version(); \
465 av_log(NULL, level, \
466 "%slib%-10s %2d.%3d.%2d / %2d.%3d.%2d\n", \
468 LIB##LIBNAME##_VERSION_MAJOR, \
469 LIB##LIBNAME##_VERSION_MINOR, \
470 LIB##LIBNAME##_VERSION_MICRO, \
471 version >> 16, version >> 8 & 0xff, version & 0xff); \
473 if (flags & SHOW_CONFIG) { \
474 const char *cfg = libname##_configuration(); \
475 if (strcmp(LIBAV_CONFIGURATION, cfg)) { \
477 av_log(NULL, level, \
478 "%sWARNING: library configuration mismatch\n", \
482 av_log(NULL, level, "%s%-11s configuration: %s\n", \
483 indent, #libname, cfg); \
488 static void print_all_libs_info(int flags, int level)
490 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
491 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
492 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
493 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
494 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
495 PRINT_LIB_INFO(avresample, AVRESAMPLE, flags, level);
496 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
499 void show_banner(void)
501 av_log(NULL, AV_LOG_INFO,
502 "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n",
503 program_name, program_birth_year, this_year);
504 av_log(NULL, AV_LOG_INFO, " built on %s %s with %s %s\n",
505 __DATE__, __TIME__, CC_TYPE, CC_VERSION);
506 av_log(NULL, AV_LOG_VERBOSE, " configuration: " LIBAV_CONFIGURATION "\n");
507 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_VERBOSE);
508 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE);
511 void show_version(void) {
512 av_log_set_callback(log_callback_help);
513 printf("%s " LIBAV_VERSION "\n", program_name);
514 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
517 void show_license(void)
521 "This version of %s has nonfree parts compiled in.\n"
522 "Therefore it is not legally redistributable.\n",
525 "%s is free software; you can redistribute it and/or modify\n"
526 "it under the terms of the GNU General Public License as published by\n"
527 "the Free Software Foundation; either version 3 of the License, or\n"
528 "(at your option) any later version.\n"
530 "%s is distributed in the hope that it will be useful,\n"
531 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
532 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
533 "GNU General Public License for more details.\n"
535 "You should have received a copy of the GNU General Public License\n"
536 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
537 program_name, program_name, program_name
539 "%s is free software; you can redistribute it and/or modify\n"
540 "it under the terms of the GNU General Public License as published by\n"
541 "the Free Software Foundation; either version 2 of the License, or\n"
542 "(at your option) any later version.\n"
544 "%s is distributed in the hope that it will be useful,\n"
545 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
546 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
547 "GNU General Public License for more details.\n"
549 "You should have received a copy of the GNU General Public License\n"
550 "along with %s; if not, write to the Free Software\n"
551 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
552 program_name, program_name, program_name
554 "%s is free software; you can redistribute it and/or modify\n"
555 "it under the terms of the GNU Lesser General Public License as published by\n"
556 "the Free Software Foundation; either version 3 of the License, or\n"
557 "(at your option) any later version.\n"
559 "%s is distributed in the hope that it will be useful,\n"
560 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
561 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
562 "GNU Lesser General Public License for more details.\n"
564 "You should have received a copy of the GNU Lesser General Public License\n"
565 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
566 program_name, program_name, program_name
568 "%s is free software; you can redistribute it and/or\n"
569 "modify it under the terms of the GNU Lesser General Public\n"
570 "License as published by the Free Software Foundation; either\n"
571 "version 2.1 of the License, or (at your option) any later version.\n"
573 "%s is distributed in the hope that it will be useful,\n"
574 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
575 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
576 "Lesser General Public License for more details.\n"
578 "You should have received a copy of the GNU Lesser General Public\n"
579 "License along with %s; if not, write to the Free Software\n"
580 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
581 program_name, program_name, program_name
586 void show_formats(void)
588 AVInputFormat *ifmt = NULL;
589 AVOutputFormat *ofmt = NULL;
590 const char *last_name;
592 printf("File formats:\n"
593 " D. = Demuxing supported\n"
594 " .E = Muxing supported\n"
600 const char *name = NULL;
601 const char *long_name = NULL;
603 while ((ofmt = av_oformat_next(ofmt))) {
604 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
605 strcmp(ofmt->name, last_name) > 0) {
607 long_name = ofmt->long_name;
611 while ((ifmt = av_iformat_next(ifmt))) {
612 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
613 strcmp(ifmt->name, last_name) > 0) {
615 long_name = ifmt->long_name;
618 if (name && strcmp(ifmt->name, name) == 0)
625 printf(" %s%s %-15s %s\n",
629 long_name ? long_name:" ");
633 void show_codecs(void)
635 AVCodec *p = NULL, *p2;
636 const char *last_name;
638 " D..... = Decoding supported\n"
639 " .E.... = Encoding supported\n"
640 " ..V... = Video codec\n"
641 " ..A... = Audio codec\n"
642 " ..S... = Subtitle codec\n"
643 " ...S.. = Supports draw_horiz_band\n"
644 " ....D. = Supports direct rendering method 1\n"
645 " .....T = Supports weird frame truncation\n"
652 const char *type_str;
655 while ((p = av_codec_next(p))) {
656 if ((p2 == NULL || strcmp(p->name, p2->name) < 0) &&
657 strcmp(p->name, last_name) > 0) {
659 decode = encode = cap = 0;
661 if (p2 && strcmp(p->name, p2->name) == 0) {
662 if (av_codec_is_decoder(p))
664 if (av_codec_is_encoder(p))
666 cap |= p->capabilities;
671 last_name = p2->name;
674 case AVMEDIA_TYPE_VIDEO:
677 case AVMEDIA_TYPE_AUDIO:
680 case AVMEDIA_TYPE_SUBTITLE:
687 printf(" %s%s%s%s%s%s %-15s %s",
688 decode ? "D" : (/* p2->decoder ? "d" : */ " "),
691 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S" : " ",
692 cap & CODEC_CAP_DR1 ? "D" : " ",
693 cap & CODEC_CAP_TRUNCATED ? "T" : " ",
695 p2->long_name ? p2->long_name : "");
697 if (p2->decoder && decode == 0)
698 printf(" use %s for decoding", p2->decoder->name);
703 printf("Note, the names of encoders and decoders do not always match, so there are\n"
704 "several cases where the above table shows encoder only or decoder only entries\n"
705 "even though both encoding and decoding are supported. For example, the h263\n"
706 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
712 AVBitStreamFilter *bsf = NULL;
714 printf("Bitstream filters:\n");
715 while ((bsf = av_bitstream_filter_next(bsf)))
716 printf("%s\n", bsf->name);
720 void show_protocols(void)
725 printf("Supported file protocols:\n"
727 while ((name = avio_enum_protocols(&opaque, 0)))
728 printf("%s\n", name);
730 while ((name = avio_enum_protocols(&opaque, 1)))
731 printf("%s\n", name);
734 void show_filters(void)
736 AVFilter av_unused(**filter) = NULL;
738 printf("Filters:\n");
740 while ((filter = av_filter_next(filter)) && *filter)
741 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
745 void show_pix_fmts(void)
747 enum PixelFormat pix_fmt;
749 printf("Pixel formats:\n"
750 "I.... = Supported Input format for conversion\n"
751 ".O... = Supported Output format for conversion\n"
752 "..H.. = Hardware accelerated format\n"
753 "...P. = Paletted format\n"
754 "....B = Bitstream format\n"
755 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
759 # define sws_isSupportedInput(x) 0
760 # define sws_isSupportedOutput(x) 0
763 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
764 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
765 printf("%c%c%c%c%c %-16s %d %2d\n",
766 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
767 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
768 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
769 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
770 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
772 pix_desc->nb_components,
773 av_get_bits_per_pixel(pix_desc));
777 int show_sample_fmts(const char *opt, const char *arg)
781 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
782 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
789 int yesno = (toupper(c) == 'Y');
791 while (c != '\n' && c != EOF)
797 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
800 FILE *f = fopen(filename, "rb");
803 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
805 return AVERROR(errno);
807 fseek(f, 0, SEEK_END);
809 fseek(f, 0, SEEK_SET);
810 *bufptr = av_malloc(*size + 1);
812 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
814 return AVERROR(ENOMEM);
816 ret = fread(*bufptr, 1, *size, f);
820 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
821 filename, strerror(errno));
822 ret = AVERROR(errno);
827 (*bufptr)[*size++] = '\0';
834 void init_pts_correction(PtsCorrectionContext *ctx)
836 ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
837 ctx->last_pts = ctx->last_dts = INT64_MIN;
840 int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts,
843 int64_t pts = AV_NOPTS_VALUE;
845 if (dts != AV_NOPTS_VALUE) {
846 ctx->num_faulty_dts += dts <= ctx->last_dts;
849 if (reordered_pts != AV_NOPTS_VALUE) {
850 ctx->num_faulty_pts += reordered_pts <= ctx->last_pts;
851 ctx->last_pts = reordered_pts;
853 if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
854 && reordered_pts != AV_NOPTS_VALUE)
862 FILE *get_preset_file(char *filename, size_t filename_size,
863 const char *preset_name, int is_path,
864 const char *codec_name)
868 const char *base[3] = { getenv("AVCONV_DATADIR"),
873 av_strlcpy(filename, preset_name, filename_size);
874 f = fopen(filename, "r");
876 for (i = 0; i < 3 && !f; i++) {
879 snprintf(filename, filename_size, "%s%s/%s.avpreset", base[i],
880 i != 1 ? "" : "/.avconv", preset_name);
881 f = fopen(filename, "r");
882 if (!f && codec_name) {
883 snprintf(filename, filename_size,
884 "%s%s/%s-%s.avpreset",
885 base[i], i != 1 ? "" : "/.avconv", codec_name,
887 f = fopen(filename, "r");
895 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
897 if (*spec <= '9' && *spec >= '0') /* opt:index */
898 return strtol(spec, NULL, 0) == st->index;
899 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
900 *spec == 't') { /* opt:[vasdt] */
901 enum AVMediaType type;
904 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
905 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
906 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
907 case 'd': type = AVMEDIA_TYPE_DATA; break;
908 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
909 default: av_assert0(0);
911 if (type != st->codec->codec_type)
913 if (*spec++ == ':') { /* possibly followed by :index */
914 int i, index = strtol(spec, NULL, 0);
915 for (i = 0; i < s->nb_streams; i++)
916 if (s->streams[i]->codec->codec_type == type && index-- == 0)
917 return i == st->index;
921 } else if (*spec == 'p' && *(spec + 1) == ':') {
925 prog_id = strtol(spec, &endptr, 0);
926 for (i = 0; i < s->nb_programs; i++) {
927 if (s->programs[i]->id != prog_id)
930 if (*endptr++ == ':') {
931 int stream_idx = strtol(endptr, NULL, 0);
932 return stream_idx >= 0 &&
933 stream_idx < s->programs[i]->nb_stream_indexes &&
934 st->index == s->programs[i]->stream_index[stream_idx];
937 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
938 if (st->index == s->programs[i]->stream_index[j])
942 } else if (!*spec) /* empty specifier, matches everything */
945 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
946 return AVERROR(EINVAL);
949 AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id,
950 AVFormatContext *s, AVStream *st)
952 AVDictionary *ret = NULL;
953 AVDictionaryEntry *t = NULL;
954 AVCodec *codec = s->oformat ? avcodec_find_encoder(codec_id)
955 : avcodec_find_decoder(codec_id);
956 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
957 : AV_OPT_FLAG_DECODING_PARAM;
959 const AVClass *cc = avcodec_get_class();
964 switch (codec->type) {
965 case AVMEDIA_TYPE_VIDEO:
967 flags |= AV_OPT_FLAG_VIDEO_PARAM;
969 case AVMEDIA_TYPE_AUDIO:
971 flags |= AV_OPT_FLAG_AUDIO_PARAM;
973 case AVMEDIA_TYPE_SUBTITLE:
975 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
979 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
980 char *p = strchr(t->key, ':');
982 /* check stream specification in opt name */
984 switch (check_stream_specifier(s, st, p + 1)) {
985 case 1: *p = 0; break;
987 default: return NULL;
990 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
991 (codec && codec->priv_class &&
992 av_opt_find(&codec->priv_class, t->key, NULL, flags,
993 AV_OPT_SEARCH_FAKE_OBJ)))
994 av_dict_set(&ret, t->key, t->value, 0);
995 else if (t->key[0] == prefix &&
996 av_opt_find(&cc, t->key + 1, NULL, flags,
997 AV_OPT_SEARCH_FAKE_OBJ))
998 av_dict_set(&ret, t->key + 1, t->value, 0);
1006 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1007 AVDictionary *codec_opts)
1010 AVDictionary **opts;
1014 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1016 av_log(NULL, AV_LOG_ERROR,
1017 "Could not alloc memory for stream options.\n");
1020 for (i = 0; i < s->nb_streams; i++)
1021 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1026 void *grow_array(void *array, int elem_size, int *size, int new_size)
1028 if (new_size >= INT_MAX / elem_size) {
1029 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1032 if (*size < new_size) {
1033 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1035 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1038 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);