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 "libswscale/swscale.h"
36 #include "libpostproc/postprocess.h"
37 #include "libavutil/avstring.h"
38 #include "libavutil/mathematics.h"
39 #include "libavutil/parseutils.h"
40 #include "libavutil/pixdesc.h"
41 #include "libavutil/eval.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/opt.h"
47 #include "libavformat/network.h"
49 #if HAVE_SYS_RESOURCE_H
50 #include <sys/resource.h>
53 struct SwsContext *sws_opts;
54 AVDictionary *format_opts, *codec_opts;
56 static const int this_year = 2011;
61 sws_opts = sws_getContext(16, 16, 0, 16, 16, 0, SWS_BICUBIC,
66 void uninit_opts(void)
69 sws_freeContext(sws_opts);
72 av_dict_free(&format_opts);
73 av_dict_free(&codec_opts);
76 void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
78 vfprintf(stdout, fmt, vl);
81 double parse_number_or_die(const char *context, const char *numstr, int type,
82 double min, double max)
86 double d = av_strtod(numstr, &tail);
88 error = "Expected number for %s but found: %s\n";
89 else if (d < min || d > max)
90 error = "The value for %s was %s which is not within %f - %f\n";
91 else if (type == OPT_INT64 && (int64_t)d != d)
92 error = "Expected int64 for %s but found %s\n";
93 else if (type == OPT_INT && (int)d != d)
94 error = "Expected int for %s but found %s\n";
97 av_log(NULL, AV_LOG_FATAL, error, context, numstr, min, max);
102 int64_t parse_time_or_die(const char *context, const char *timestr,
106 if (av_parse_time(&us, timestr, is_duration) < 0) {
107 av_log(NULL, AV_LOG_FATAL, "Invalid %s specification for %s: %s\n",
108 is_duration ? "duration" : "date", context, timestr);
114 void show_help_options(const OptionDef *options, const char *msg, int mask,
121 for (po = options; po->name != NULL; po++) {
123 if ((po->flags & mask) == value) {
128 av_strlcpy(buf, po->name, sizeof(buf));
129 if (po->flags & HAS_ARG) {
130 av_strlcat(buf, " ", sizeof(buf));
131 av_strlcat(buf, po->argname, sizeof(buf));
133 printf("-%-17s %s\n", buf, po->help);
138 void show_help_children(const AVClass *class, int flags)
140 const AVClass *child = NULL;
141 av_opt_show2(&class, NULL, flags, 0);
144 while (child = av_opt_child_class_next(class, child))
145 show_help_children(child, flags);
148 static const OptionDef *find_option(const OptionDef *po, const char *name)
150 const char *p = strchr(name, ':');
151 int len = p ? p - name : strlen(name);
153 while (po->name != NULL) {
154 if (!strncmp(name, po->name, len) && strlen(po->name) == len)
161 #if defined(_WIN32) && !defined(__MINGW32CE__)
163 /* Will be leaked on exit */
164 static char** win32_argv_utf8 = NULL;
165 static int win32_argc = 0;
168 * Prepare command line arguments for executable.
169 * For Windows - perform wide-char to UTF-8 conversion.
170 * Input arguments should be main() function arguments.
171 * @param argc_ptr Arguments number (including executable)
172 * @param argv_ptr Arguments list.
174 static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
178 int i, buffsize = 0, offset = 0;
180 if (win32_argv_utf8) {
181 *argc_ptr = win32_argc;
182 *argv_ptr = win32_argv_utf8;
187 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
188 if (win32_argc <= 0 || !argv_w)
191 /* determine the UTF-8 buffer size (including NULL-termination symbols) */
192 for (i = 0; i < win32_argc; i++)
193 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
194 NULL, 0, NULL, NULL);
196 win32_argv_utf8 = av_mallocz(sizeof(char *) * (win32_argc + 1) + buffsize);
197 argstr_flat = (char *)win32_argv_utf8 + sizeof(char *) * (win32_argc + 1);
198 if (win32_argv_utf8 == NULL) {
203 for (i = 0; i < win32_argc; i++) {
204 win32_argv_utf8[i] = &argstr_flat[offset];
205 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
206 &argstr_flat[offset],
207 buffsize - offset, NULL, NULL);
209 win32_argv_utf8[i] = NULL;
212 *argc_ptr = win32_argc;
213 *argv_ptr = win32_argv_utf8;
216 static inline void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
220 #endif /* WIN32 && !__MINGW32CE__ */
222 int parse_option(void *optctx, const char *opt, const char *arg,
223 const OptionDef *options)
230 po = find_option(options, opt);
231 if (!po->name && opt[0] == 'n' && opt[1] == 'o') {
232 /* handle 'no' bool option */
233 po = find_option(options, opt + 2);
234 if (!(po->name && (po->flags & OPT_BOOL)))
239 po = find_option(options, "default");
242 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
243 return AVERROR(EINVAL);
245 if (po->flags & HAS_ARG && !arg) {
246 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'\n", opt);
247 return AVERROR(EINVAL);
250 /* new-style options contain an offset into optctx, old-style address of
252 dst = po->flags & (OPT_OFFSET | OPT_SPEC) ? (uint8_t *)optctx + po->u.off
255 if (po->flags & OPT_SPEC) {
256 SpecifierOpt **so = dst;
257 char *p = strchr(opt, ':');
259 dstcount = (int *)(so + 1);
260 *so = grow_array(*so, sizeof(**so), dstcount, *dstcount + 1);
261 (*so)[*dstcount - 1].specifier = av_strdup(p ? p + 1 : "");
262 dst = &(*so)[*dstcount - 1].u;
265 if (po->flags & OPT_STRING) {
267 str = av_strdup(arg);
269 } else if (po->flags & OPT_BOOL) {
270 *(int *)dst = bool_val;
271 } else if (po->flags & OPT_INT) {
272 *(int *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT_MIN, INT_MAX);
273 } else if (po->flags & OPT_INT64) {
274 *(int64_t *)dst = parse_number_or_die(opt, arg, OPT_INT64, INT64_MIN, INT64_MAX);
275 } else if (po->flags & OPT_TIME) {
276 *(int64_t *)dst = parse_time_or_die(opt, arg, 1);
277 } else if (po->flags & OPT_FLOAT) {
278 *(float *)dst = parse_number_or_die(opt, arg, OPT_FLOAT, -INFINITY, INFINITY);
279 } else if (po->flags & OPT_DOUBLE) {
280 *(double *)dst = parse_number_or_die(opt, arg, OPT_DOUBLE, -INFINITY, INFINITY);
281 } else if (po->u.func_arg) {
282 int ret = po->flags & OPT_FUNC2 ? po->u.func2_arg(optctx, opt, arg)
283 : po->u.func_arg(opt, arg);
285 av_log(NULL, AV_LOG_ERROR,
286 "Failed to set value '%s' for option '%s'\n", arg, opt);
290 if (po->flags & OPT_EXIT)
292 return !!(po->flags & HAS_ARG);
295 void parse_options(void *optctx, int argc, char **argv, const OptionDef *options,
296 void (*parse_arg_function)(void *, const char*))
299 int optindex, handleoptions = 1, ret;
301 /* perform system-dependent conversions for arguments list */
302 prepare_app_arguments(&argc, &argv);
306 while (optindex < argc) {
307 opt = argv[optindex++];
309 if (handleoptions && opt[0] == '-' && opt[1] != '\0') {
310 if (opt[1] == '-' && opt[2] == '\0') {
316 if ((ret = parse_option(optctx, opt, argv[optindex], options)) < 0)
320 if (parse_arg_function)
321 parse_arg_function(optctx, opt);
327 * Return index of option opt in argv or 0 if not found.
329 static int locate_option(int argc, char **argv, const OptionDef *options,
335 for (i = 1; i < argc; i++) {
336 const char *cur_opt = argv[i];
338 if (*cur_opt++ != '-')
341 po = find_option(options, cur_opt);
342 if (!po->name && cur_opt[0] == 'n' && cur_opt[1] == 'o')
343 po = find_option(options, cur_opt + 2);
345 if ((!po->name && !strcmp(cur_opt, optname)) ||
346 (po->name && !strcmp(optname, po->name)))
349 if (!po || po->flags & HAS_ARG)
355 void parse_loglevel(int argc, char **argv, const OptionDef *options)
357 int idx = locate_option(argc, argv, options, "loglevel");
359 idx = locate_option(argc, argv, options, "v");
360 if (idx && argv[idx + 1])
361 opt_loglevel("loglevel", argv[idx + 1]);
364 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
365 int opt_default(const char *opt, const char *arg)
368 char opt_stripped[128];
370 const AVClass *cc = avcodec_get_class(), *fc = avformat_get_class(), *sc = sws_get_class();
372 if (!(p = strchr(opt, ':')))
373 p = opt + strlen(opt);
374 av_strlcpy(opt_stripped, opt, FFMIN(sizeof(opt_stripped), p - opt + 1));
376 if ((o = av_opt_find(&cc, opt_stripped, NULL, 0,
377 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)) ||
378 ((opt[0] == 'v' || opt[0] == 'a' || opt[0] == 's') &&
379 (o = av_opt_find(&cc, opt + 1, NULL, 0, AV_OPT_SEARCH_FAKE_OBJ))))
380 av_dict_set(&codec_opts, opt, arg, FLAGS);
381 else if ((o = av_opt_find(&fc, opt, NULL, 0,
382 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ)))
383 av_dict_set(&format_opts, opt, arg, FLAGS);
384 else if ((o = av_opt_find(&sc, opt, NULL, 0,
385 AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ))) {
386 // XXX we only support sws_flags, not arbitrary sws options
387 int ret = av_opt_set(sws_opts, opt, arg, 0);
389 av_log(NULL, AV_LOG_ERROR, "Error setting option %s.\n", opt);
396 av_log(NULL, AV_LOG_ERROR, "Unrecognized option '%s'\n", opt);
397 return AVERROR_OPTION_NOT_FOUND;
400 int opt_loglevel(const char *opt, const char *arg)
402 const struct { const char *name; int level; } log_levels[] = {
403 { "quiet" , AV_LOG_QUIET },
404 { "panic" , AV_LOG_PANIC },
405 { "fatal" , AV_LOG_FATAL },
406 { "error" , AV_LOG_ERROR },
407 { "warning", AV_LOG_WARNING },
408 { "info" , AV_LOG_INFO },
409 { "verbose", AV_LOG_VERBOSE },
410 { "debug" , AV_LOG_DEBUG },
416 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++) {
417 if (!strcmp(log_levels[i].name, arg)) {
418 av_log_set_level(log_levels[i].level);
423 level = strtol(arg, &tail, 10);
425 av_log(NULL, AV_LOG_FATAL, "Invalid loglevel \"%s\". "
426 "Possible levels are numbers or:\n", arg);
427 for (i = 0; i < FF_ARRAY_ELEMS(log_levels); i++)
428 av_log(NULL, AV_LOG_FATAL, "\"%s\"\n", log_levels[i].name);
431 av_log_set_level(level);
435 int opt_timelimit(const char *opt, const char *arg)
438 int lim = parse_number_or_die(opt, arg, OPT_INT64, 0, INT_MAX);
439 struct rlimit rl = { lim, lim + 1 };
440 if (setrlimit(RLIMIT_CPU, &rl))
443 av_log(NULL, AV_LOG_WARNING, "-%s not implemented on this OS\n", opt);
448 void print_error(const char *filename, int err)
451 const char *errbuf_ptr = errbuf;
453 if (av_strerror(err, errbuf, sizeof(errbuf)) < 0)
454 errbuf_ptr = strerror(AVUNERROR(err));
455 av_log(NULL, AV_LOG_ERROR, "%s: %s\n", filename, errbuf_ptr);
458 static int warned_cfg = 0;
461 #define SHOW_VERSION 2
462 #define SHOW_CONFIG 4
464 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
465 if (CONFIG_##LIBNAME) { \
466 const char *indent = flags & INDENT? " " : ""; \
467 if (flags & SHOW_VERSION) { \
468 unsigned int version = libname##_version(); \
469 av_log(NULL, level, "%slib%-9s %2d.%3d.%2d / %2d.%3d.%2d\n",\
471 LIB##LIBNAME##_VERSION_MAJOR, \
472 LIB##LIBNAME##_VERSION_MINOR, \
473 LIB##LIBNAME##_VERSION_MICRO, \
474 version >> 16, version >> 8 & 0xff, version & 0xff); \
476 if (flags & SHOW_CONFIG) { \
477 const char *cfg = libname##_configuration(); \
478 if (strcmp(LIBAV_CONFIGURATION, cfg)) { \
480 av_log(NULL, level, \
481 "%sWARNING: library configuration mismatch\n", \
485 av_log(NULL, level, "%s%-11s configuration: %s\n", \
486 indent, #libname, cfg); \
491 static void print_all_libs_info(int flags, int level)
493 PRINT_LIB_INFO(avutil, AVUTIL, flags, level);
494 PRINT_LIB_INFO(avcodec, AVCODEC, flags, level);
495 PRINT_LIB_INFO(avformat, AVFORMAT, flags, level);
496 PRINT_LIB_INFO(avdevice, AVDEVICE, flags, level);
497 PRINT_LIB_INFO(avfilter, AVFILTER, flags, level);
498 PRINT_LIB_INFO(swscale, SWSCALE, flags, level);
499 PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
502 void show_banner(void)
504 av_log(NULL, AV_LOG_INFO,
505 "%s version " LIBAV_VERSION ", Copyright (c) %d-%d the Libav developers\n",
506 program_name, program_birth_year, this_year);
507 av_log(NULL, AV_LOG_INFO, " built on %s %s with %s %s\n",
508 __DATE__, __TIME__, CC_TYPE, CC_VERSION);
509 av_log(NULL, AV_LOG_VERBOSE, " configuration: " LIBAV_CONFIGURATION "\n");
510 print_all_libs_info(INDENT|SHOW_CONFIG, AV_LOG_VERBOSE);
511 print_all_libs_info(INDENT|SHOW_VERSION, AV_LOG_VERBOSE);
514 void show_version(void) {
515 av_log_set_callback(log_callback_help);
516 printf("%s " LIBAV_VERSION "\n", program_name);
517 print_all_libs_info(SHOW_VERSION, AV_LOG_INFO);
520 void show_license(void)
524 "This version of %s has nonfree parts compiled in.\n"
525 "Therefore it is not legally redistributable.\n",
528 "%s is free software; you can redistribute it and/or modify\n"
529 "it under the terms of the GNU General Public License as published by\n"
530 "the Free Software Foundation; either version 3 of the License, or\n"
531 "(at your option) any later version.\n"
533 "%s is distributed in the hope that it will be useful,\n"
534 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
535 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
536 "GNU General Public License for more details.\n"
538 "You should have received a copy of the GNU General Public License\n"
539 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
540 program_name, program_name, program_name
542 "%s is free software; you can redistribute it and/or modify\n"
543 "it under the terms of the GNU General Public License as published by\n"
544 "the Free Software Foundation; either version 2 of the License, or\n"
545 "(at your option) any later version.\n"
547 "%s is distributed in the hope that it will be useful,\n"
548 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
549 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
550 "GNU General Public License for more details.\n"
552 "You should have received a copy of the GNU General Public License\n"
553 "along with %s; if not, write to the Free Software\n"
554 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
555 program_name, program_name, program_name
557 "%s is free software; you can redistribute it and/or modify\n"
558 "it under the terms of the GNU Lesser General Public License as published by\n"
559 "the Free Software Foundation; either version 3 of the License, or\n"
560 "(at your option) any later version.\n"
562 "%s is distributed in the hope that it will be useful,\n"
563 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
564 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
565 "GNU Lesser General Public License for more details.\n"
567 "You should have received a copy of the GNU Lesser General Public License\n"
568 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
569 program_name, program_name, program_name
571 "%s is free software; you can redistribute it and/or\n"
572 "modify it under the terms of the GNU Lesser General Public\n"
573 "License as published by the Free Software Foundation; either\n"
574 "version 2.1 of the License, or (at your option) any later version.\n"
576 "%s is distributed in the hope that it will be useful,\n"
577 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
578 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
579 "Lesser General Public License for more details.\n"
581 "You should have received a copy of the GNU Lesser General Public\n"
582 "License along with %s; if not, write to the Free Software\n"
583 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
584 program_name, program_name, program_name
589 void show_formats(void)
591 AVInputFormat *ifmt = NULL;
592 AVOutputFormat *ofmt = NULL;
593 const char *last_name;
595 printf("File formats:\n"
596 " D. = Demuxing supported\n"
597 " .E = Muxing supported\n"
603 const char *name = NULL;
604 const char *long_name = NULL;
606 while ((ofmt = av_oformat_next(ofmt))) {
607 if ((name == NULL || strcmp(ofmt->name, name) < 0) &&
608 strcmp(ofmt->name, last_name) > 0) {
610 long_name = ofmt->long_name;
614 while ((ifmt = av_iformat_next(ifmt))) {
615 if ((name == NULL || strcmp(ifmt->name, name) < 0) &&
616 strcmp(ifmt->name, last_name) > 0) {
618 long_name = ifmt->long_name;
621 if (name && strcmp(ifmt->name, name) == 0)
628 printf(" %s%s %-15s %s\n",
632 long_name ? long_name:" ");
636 void show_codecs(void)
638 AVCodec *p = NULL, *p2;
639 const char *last_name;
641 " D..... = Decoding supported\n"
642 " .E.... = Encoding supported\n"
643 " ..V... = Video codec\n"
644 " ..A... = Audio codec\n"
645 " ..S... = Subtitle codec\n"
646 " ...S.. = Supports draw_horiz_band\n"
647 " ....D. = Supports direct rendering method 1\n"
648 " .....T = Supports weird frame truncation\n"
655 const char *type_str;
658 while ((p = av_codec_next(p))) {
659 if ((p2 == NULL || strcmp(p->name, p2->name) < 0) &&
660 strcmp(p->name, last_name) > 0) {
662 decode = encode = cap = 0;
664 if (p2 && strcmp(p->name, p2->name) == 0) {
669 cap |= p->capabilities;
674 last_name = p2->name;
677 case AVMEDIA_TYPE_VIDEO:
680 case AVMEDIA_TYPE_AUDIO:
683 case AVMEDIA_TYPE_SUBTITLE:
690 printf(" %s%s%s%s%s%s %-15s %s",
691 decode ? "D" : (/* p2->decoder ? "d" : */ " "),
694 cap & CODEC_CAP_DRAW_HORIZ_BAND ? "S" : " ",
695 cap & CODEC_CAP_DR1 ? "D" : " ",
696 cap & CODEC_CAP_TRUNCATED ? "T" : " ",
698 p2->long_name ? p2->long_name : "");
700 if (p2->decoder && decode == 0)
701 printf(" use %s for decoding", p2->decoder->name);
706 printf("Note, the names of encoders and decoders do not always match, so there are\n"
707 "several cases where the above table shows encoder only or decoder only entries\n"
708 "even though both encoding and decoding are supported. For example, the h263\n"
709 "decoder corresponds to the h263 and h263p encoders, for file formats it is even\n"
715 AVBitStreamFilter *bsf = NULL;
717 printf("Bitstream filters:\n");
718 while ((bsf = av_bitstream_filter_next(bsf)))
719 printf("%s\n", bsf->name);
723 void show_protocols(void)
728 printf("Supported file protocols:\n"
730 while ((name = avio_enum_protocols(&opaque, 0)))
731 printf("%s\n", name);
733 while ((name = avio_enum_protocols(&opaque, 1)))
734 printf("%s\n", name);
737 void show_filters(void)
739 AVFilter av_unused(**filter) = NULL;
741 printf("Filters:\n");
743 while ((filter = av_filter_next(filter)) && *filter)
744 printf("%-16s %s\n", (*filter)->name, (*filter)->description);
748 void show_pix_fmts(void)
750 enum PixelFormat pix_fmt;
752 printf("Pixel formats:\n"
753 "I.... = Supported Input format for conversion\n"
754 ".O... = Supported Output format for conversion\n"
755 "..H.. = Hardware accelerated format\n"
756 "...P. = Paletted format\n"
757 "....B = Bitstream format\n"
758 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
762 # define sws_isSupportedInput(x) 0
763 # define sws_isSupportedOutput(x) 0
766 for (pix_fmt = 0; pix_fmt < PIX_FMT_NB; pix_fmt++) {
767 const AVPixFmtDescriptor *pix_desc = &av_pix_fmt_descriptors[pix_fmt];
768 printf("%c%c%c%c%c %-16s %d %2d\n",
769 sws_isSupportedInput (pix_fmt) ? 'I' : '.',
770 sws_isSupportedOutput(pix_fmt) ? 'O' : '.',
771 pix_desc->flags & PIX_FMT_HWACCEL ? 'H' : '.',
772 pix_desc->flags & PIX_FMT_PAL ? 'P' : '.',
773 pix_desc->flags & PIX_FMT_BITSTREAM ? 'B' : '.',
775 pix_desc->nb_components,
776 av_get_bits_per_pixel(pix_desc));
780 int show_sample_fmts(const char *opt, const char *arg)
784 for (i = -1; i < AV_SAMPLE_FMT_NB; i++)
785 printf("%s\n", av_get_sample_fmt_string(fmt_str, sizeof(fmt_str), i));
792 int yesno = (toupper(c) == 'Y');
794 while (c != '\n' && c != EOF)
800 int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
803 FILE *f = fopen(filename, "rb");
806 av_log(NULL, AV_LOG_ERROR, "Cannot read file '%s': %s\n", filename,
808 return AVERROR(errno);
810 fseek(f, 0, SEEK_END);
812 fseek(f, 0, SEEK_SET);
813 *bufptr = av_malloc(*size + 1);
815 av_log(NULL, AV_LOG_ERROR, "Could not allocate file buffer\n");
817 return AVERROR(ENOMEM);
819 ret = fread(*bufptr, 1, *size, f);
823 av_log(NULL, AV_LOG_ERROR, "Error while reading file '%s': %s\n",
824 filename, strerror(errno));
825 ret = AVERROR(errno);
830 (*bufptr)[*size++] = '\0';
837 void init_pts_correction(PtsCorrectionContext *ctx)
839 ctx->num_faulty_pts = ctx->num_faulty_dts = 0;
840 ctx->last_pts = ctx->last_dts = INT64_MIN;
843 int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts,
846 int64_t pts = AV_NOPTS_VALUE;
848 if (dts != AV_NOPTS_VALUE) {
849 ctx->num_faulty_dts += dts <= ctx->last_dts;
852 if (reordered_pts != AV_NOPTS_VALUE) {
853 ctx->num_faulty_pts += reordered_pts <= ctx->last_pts;
854 ctx->last_pts = reordered_pts;
856 if ((ctx->num_faulty_pts<=ctx->num_faulty_dts || dts == AV_NOPTS_VALUE)
857 && reordered_pts != AV_NOPTS_VALUE)
865 FILE *get_preset_file(char *filename, size_t filename_size,
866 const char *preset_name, int is_path,
867 const char *codec_name)
871 const char *base[3] = { getenv("AVCONV_DATADIR"),
876 av_strlcpy(filename, preset_name, filename_size);
877 f = fopen(filename, "r");
879 for (i = 0; i < 3 && !f; i++) {
882 snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i],
883 i != 1 ? "" : "/.avconv", preset_name);
884 f = fopen(filename, "r");
885 if (!f && codec_name) {
886 snprintf(filename, filename_size,
887 "%s%s/%s-%s.ffpreset",
888 base[i], i != 1 ? "" : "/.avconv", codec_name,
890 f = fopen(filename, "r");
898 int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
900 if (*spec <= '9' && *spec >= '0') /* opt:index */
901 return strtol(spec, NULL, 0) == st->index;
902 else if (*spec == 'v' || *spec == 'a' || *spec == 's' || *spec == 'd' ||
903 *spec == 't') { /* opt:[vasdt] */
904 enum AVMediaType type;
907 case 'v': type = AVMEDIA_TYPE_VIDEO; break;
908 case 'a': type = AVMEDIA_TYPE_AUDIO; break;
909 case 's': type = AVMEDIA_TYPE_SUBTITLE; break;
910 case 'd': type = AVMEDIA_TYPE_DATA; break;
911 case 't': type = AVMEDIA_TYPE_ATTACHMENT; break;
913 if (type != st->codec->codec_type)
915 if (*spec++ == ':') { /* possibly followed by :index */
916 int i, index = strtol(spec, NULL, 0);
917 for (i = 0; i < s->nb_streams; i++)
918 if (s->streams[i]->codec->codec_type == type && index-- == 0)
919 return i == st->index;
923 } else if (*spec == 'p' && *(spec + 1) == ':') {
927 prog_id = strtol(spec, &endptr, 0);
928 for (i = 0; i < s->nb_programs; i++) {
929 if (s->programs[i]->id != prog_id)
932 if (*endptr++ == ':') {
933 int stream_idx = strtol(endptr, NULL, 0);
934 return stream_idx >= 0 &&
935 stream_idx < s->programs[i]->nb_stream_indexes &&
936 st->index == s->programs[i]->stream_index[stream_idx];
939 for (j = 0; j < s->programs[i]->nb_stream_indexes; j++)
940 if (st->index == s->programs[i]->stream_index[j])
944 } else if (!*spec) /* empty specifier, matches everything */
947 av_log(s, AV_LOG_ERROR, "Invalid stream specifier: %s.\n", spec);
948 return AVERROR(EINVAL);
951 AVDictionary *filter_codec_opts(AVDictionary *opts, enum CodecID codec_id,
952 AVFormatContext *s, AVStream *st)
954 AVDictionary *ret = NULL;
955 AVDictionaryEntry *t = NULL;
956 AVCodec *codec = s->oformat ? avcodec_find_encoder(codec_id)
957 : avcodec_find_decoder(codec_id);
958 int flags = s->oformat ? AV_OPT_FLAG_ENCODING_PARAM
959 : AV_OPT_FLAG_DECODING_PARAM;
961 const AVClass *cc = avcodec_get_class();
966 switch (codec->type) {
967 case AVMEDIA_TYPE_VIDEO:
969 flags |= AV_OPT_FLAG_VIDEO_PARAM;
971 case AVMEDIA_TYPE_AUDIO:
973 flags |= AV_OPT_FLAG_AUDIO_PARAM;
975 case AVMEDIA_TYPE_SUBTITLE:
977 flags |= AV_OPT_FLAG_SUBTITLE_PARAM;
981 while (t = av_dict_get(opts, "", t, AV_DICT_IGNORE_SUFFIX)) {
982 char *p = strchr(t->key, ':');
984 /* check stream specification in opt name */
986 switch (check_stream_specifier(s, st, p + 1)) {
987 case 1: *p = 0; break;
989 default: return NULL;
992 if (av_opt_find(&cc, t->key, NULL, flags, AV_OPT_SEARCH_FAKE_OBJ) ||
993 (codec && codec->priv_class &&
994 av_opt_find(&codec->priv_class, t->key, NULL, flags,
995 AV_OPT_SEARCH_FAKE_OBJ)))
996 av_dict_set(&ret, t->key, t->value, 0);
997 else if (t->key[0] == prefix &&
998 av_opt_find(&cc, t->key + 1, NULL, flags,
999 AV_OPT_SEARCH_FAKE_OBJ))
1000 av_dict_set(&ret, t->key + 1, t->value, 0);
1008 AVDictionary **setup_find_stream_info_opts(AVFormatContext *s,
1009 AVDictionary *codec_opts)
1012 AVDictionary **opts;
1016 opts = av_mallocz(s->nb_streams * sizeof(*opts));
1018 av_log(NULL, AV_LOG_ERROR,
1019 "Could not alloc memory for stream options.\n");
1022 for (i = 0; i < s->nb_streams; i++)
1023 opts[i] = filter_codec_opts(codec_opts, s->streams[i]->codec->codec_id,
1030 static int ffsink_init(AVFilterContext *ctx, const char *args, void *opaque)
1032 FFSinkContext *priv = ctx->priv;
1035 return AVERROR(EINVAL);
1036 *priv = *(FFSinkContext *)opaque;
1041 static void null_end_frame(AVFilterLink *inlink) { }
1043 static int ffsink_query_formats(AVFilterContext *ctx)
1045 FFSinkContext *priv = ctx->priv;
1046 enum PixelFormat pix_fmts[] = { priv->pix_fmt, PIX_FMT_NONE };
1048 avfilter_set_common_formats(ctx, avfilter_make_format_list(pix_fmts));
1054 .priv_size = sizeof(FFSinkContext),
1055 .init = ffsink_init,
1057 .query_formats = ffsink_query_formats,
1059 .inputs = (AVFilterPad[]) {{ .name = "default",
1060 .type = AVMEDIA_TYPE_VIDEO,
1061 .end_frame = null_end_frame,
1062 .min_perms = AV_PERM_READ, },
1064 .outputs = (AVFilterPad[]) {{ .name = NULL }},
1067 int get_filtered_video_frame(AVFilterContext *ctx, AVFrame *frame,
1068 AVFilterBufferRef **picref_ptr, AVRational *tb)
1071 AVFilterBufferRef *picref;
1073 if ((ret = avfilter_request_frame(ctx->inputs[0])) < 0)
1075 if (!(picref = ctx->inputs[0]->cur_buf))
1076 return AVERROR(ENOENT);
1077 *picref_ptr = picref;
1078 ctx->inputs[0]->cur_buf = NULL;
1079 *tb = ctx->inputs[0]->time_base;
1081 memcpy(frame->data, picref->data, sizeof(frame->data));
1082 memcpy(frame->linesize, picref->linesize, sizeof(frame->linesize));
1083 frame->interlaced_frame = picref->video->interlaced;
1084 frame->top_field_first = picref->video->top_field_first;
1085 frame->key_frame = picref->video->key_frame;
1086 frame->pict_type = picref->video->pict_type;
1087 frame->sample_aspect_ratio = picref->video->pixel_aspect;
1092 #endif /* CONFIG_AVFILTER */
1094 void *grow_array(void *array, int elem_size, int *size, int new_size)
1096 if (new_size >= INT_MAX / elem_size) {
1097 av_log(NULL, AV_LOG_ERROR, "Array too big.\n");
1100 if (*size < new_size) {
1101 uint8_t *tmp = av_realloc(array, new_size*elem_size);
1103 av_log(NULL, AV_LOG_ERROR, "Could not alloc buffer.\n");
1106 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);