57 #if HAVE_SYS_RESOURCE_H
59 #include <sys/resource.h>
95 vfprintf(stdout, fmt, vl);
102 static int print_prefix = 1;
130 double min,
double max)
136 error =
"Expected number for %s but found: %s\n";
137 else if (d < min || d > max)
138 error =
"The value for %s was %s which is not within %f - %f\n";
139 else if (type ==
OPT_INT64 && (int64_t)d != d)
140 error =
"Expected int64 for %s but found %s\n";
141 else if (type ==
OPT_INT && (
int)d != d)
142 error =
"Expected int for %s but found %s\n";
156 is_duration ?
"duration" :
"date", context, timestr);
163 int rej_flags,
int alt_flags)
169 for (po = options; po->
name; po++) {
172 if (((po->
flags & req_flags) != req_flags) ||
173 (alt_flags && !(po->
flags & alt_flags)) ||
174 (po->
flags & rej_flags))
186 printf(
"-%-17s %s\n", buf, po->
help);
205 const char *p = strchr(name,
':');
206 int len = p ? p - name : strlen(name);
209 if (!strncmp(name, po->
name, len) && strlen(po->
name) == len)
219 #if HAVE_COMMANDLINETOARGVW && defined(_WIN32)
221 #include <shellapi.h>
223 static char** win32_argv_utf8 =
NULL;
224 static int win32_argc = 0;
237 int i, buffsize = 0,
offset = 0;
239 if (win32_argv_utf8) {
240 *argc_ptr = win32_argc;
241 *argv_ptr = win32_argv_utf8;
246 argv_w = CommandLineToArgvW(GetCommandLineW(), &win32_argc);
247 if (win32_argc <= 0 || !argv_w)
251 for (i = 0; i < win32_argc; i++)
252 buffsize += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
255 win32_argv_utf8 =
av_mallocz(
sizeof(
char *) * (win32_argc + 1) + buffsize);
256 argstr_flat = (
char *)win32_argv_utf8 +
sizeof(
char *) * (win32_argc + 1);
257 if (!win32_argv_utf8) {
262 for (i = 0; i < win32_argc; i++) {
263 win32_argv_utf8[i] = &argstr_flat[
offset];
264 offset += WideCharToMultiByte(CP_UTF8, 0, argv_w[i], -1,
268 win32_argv_utf8[i] =
NULL;
271 *argc_ptr = win32_argc;
272 *argv_ptr = win32_argv_utf8;
292 char *p = strchr(opt,
':');
295 dstcount = (
int *)(so + 1);
296 *so =
grow_array(*so,
sizeof(**so), dstcount, *dstcount + 1);
300 (*so)[*dstcount - 1].specifier = str;
301 dst = &(*so)[*dstcount - 1].u;
325 "Failed to set value '%s' for option '%s': %s\n",
343 if (!po->
name && opt[0] ==
'n' && opt[1] ==
'o') {
370 void (*parse_arg_function)(
void *,
const char*))
373 int optindex, handleoptions = 1,
ret;
380 while (optindex < argc) {
381 opt = argv[optindex++];
383 if (handleoptions && opt[0] ==
'-' && opt[1] !=
'\0') {
384 if (opt[1] ==
'-' && opt[2] ==
'\0') {
394 if (parse_arg_function)
395 parse_arg_function(optctx, opt);
407 for (i = 0; i < g->
nb_opts; i++) {
413 "%s %s -- you are trying to apply an input option to an "
414 "output file or vice versa. Move this option before the "
415 "file it belongs to.\n", o->
key, o->
opt->
help,
439 for (i = 1; i < argc; i++) {
440 const char *cur_opt = argv[i];
442 if (*cur_opt++ !=
'-')
446 if (!po->
name && cur_opt[0] ==
'n' && cur_opt[1] ==
'o')
449 if ((!po->
name && !strcmp(cur_opt, optname)) ||
450 (po->
name && !strcmp(optname, po->
name)))
461 const unsigned char *p;
464 if (!((*p >=
'+' && *p <=
':') || (*p >=
'@' && *p <=
'Z') ||
465 *p ==
'_' || (*p >=
'a' && *p <=
'z')))
472 for (p = a; *p; p++) {
473 if (*p ==
'\\' || *p ==
'"' || *p ==
'$' || *p ==
'`')
475 else if (*p < ' ' || *p >
'~')
489 if (idx && argv[idx + 1])
492 if ((env = getenv(
"FFREPORT")) || idx) {
497 for (i = 0; i < argc; i++) {
510 int opt_flags,
int search_flags)
518 #define FLAGS (o->type == AV_OPT_TYPE_FLAGS) ? AV_DICT_APPEND : 0
523 char opt_stripped[128];
526 #if CONFIG_AVRESAMPLE
531 if (!strcmp(opt,
"debug") || !strcmp(opt,
"fdebug"))
534 if (!(p = strchr(opt,
':')))
535 p = opt + strlen(opt);
536 av_strlcpy(opt_stripped, opt,
FFMIN(
sizeof(opt_stripped), p - opt + 1));
540 ((opt[0] ==
'v' || opt[0] ==
'a' || opt[0] ==
's') &&
565 if (!consumed && !strcmp(opt,
"sws_flags")) {
570 #if CONFIG_SWRESAMPLE
585 #if CONFIG_AVRESAMPLE
608 for (i = 0; i < nb_groups; i++) {
610 if (p->
sep && !strcmp(p->
sep, opt))
645 resample_opts =
NULL;
659 const char *key,
const char *
val)
676 memset(octx, 0,
sizeof(*octx));
732 while (optindex < argc) {
733 const char *opt = argv[optindex++], *
arg;
739 if (opt[0] ==
'-' && opt[1] ==
'-' && !opt[2]) {
744 if (opt[0] !=
'-' || !opt[1] || dashdash+1 == optindex) {
751 #define GET_ARG(arg) \
753 arg = argv[optindex++]; \
755 av_log(NULL, AV_LOG_ERROR, "Missing argument for option '%s'.\n", opt);\
756 return AVERROR(EINVAL); \
765 groups[ret].
name, arg);
774 arg = argv[optindex++];
783 "argument '%s'.\n", po->
name, po->
help, arg);
788 if (argv[optindex]) {
792 "argument '%s'.\n", opt, argv[optindex]);
797 "with argument '%s'.\n", opt, argv[optindex]);
803 if (opt[0] ==
'n' && opt[1] ==
'o' &&
808 "argument 0.\n", po->
name, po->
help);
839 const struct {
const char *
name;
int level; } log_levels[] = {
855 tail = strstr(arg,
"repeat");
863 arg += 6 + (arg[6]==
'+');
868 if (!strcmp(log_levels[i].
name, arg)) {
874 level = strtol(arg, &tail, 10);
877 "Possible levels are numbers or:\n", arg);
891 while ((c = *(
template++))) {
893 if (!(c = *(
template++)))
901 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
902 tm->tm_hour, tm->tm_min, tm->tm_sec);
916 char *filename_template =
NULL;
926 tm = localtime(&now);
928 while (env && *env) {
932 "Failed to parse FFREPORT environment variable: %s\n",
939 if (!strcmp(key,
"file")) {
941 filename_template =
val;
943 }
else if (!strcmp(key,
"level")) {
970 filename.str, strerror(errno));
975 "%s started on %04d-%02d-%02d at %02d:%02d:%02d\n"
976 "Report written to \"%s\"\n",
978 tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
979 tm->tm_hour, tm->tm_min, tm->tm_sec,
995 max = strtol(arg, &tail, 10);
1008 struct rlimit rl = { lim, lim + 1 };
1009 if (setrlimit(RLIMIT_CPU, &rl))
1010 perror(
"setrlimit");
1020 const char *errbuf_ptr = errbuf;
1030 #define SHOW_VERSION 2
1031 #define SHOW_CONFIG 0
1032 #define SHOW_COPYRIGHT 8
1034 #define PRINT_LIB_INFO(libname, LIBNAME, flags, level) \
1035 if (CONFIG_##LIBNAME) { \
1036 const char *indent = flags & INDENT? " " : ""; \
1037 if (flags & SHOW_VERSION) { \
1038 unsigned int version = libname##_version(); \
1039 av_log(NULL, level, \
1040 "%slib%-11s %2d.%3d.%3d / %2d.%3d.%3d\n", \
1042 LIB##LIBNAME##_VERSION_MAJOR, \
1043 LIB##LIBNAME##_VERSION_MINOR, \
1044 LIB##LIBNAME##_VERSION_MICRO, \
1045 version >> 16, version >> 8 & 0xff, version & 0xff); \
1047 if (flags & SHOW_CONFIG) { \
1048 const char *cfg = libname##_configuration(); \
1049 if (strcmp(FFMPEG_CONFIGURATION, cfg)) { \
1050 if (!warned_cfg) { \
1051 av_log(NULL, level, \
1052 "%sWARNING: library configuration mismatch\n", \
1056 av_log(NULL, level, "%s%-11s configuration: %s\n", \
1057 indent, #libname, cfg); \
1077 const char *indent = flags &
INDENT?
" " :
"";
1081 av_log(
NULL, level,
" Copyright (c) %d-%d the FFmpeg developers",
1091 const char *indent = flags &
INDENT ?
" " :
"";
1093 char *conflist, *remove_tilde, *splitconf;
1097 while ((conflist = strstr(str,
" --")) !=
NULL) {
1098 strncpy(conflist,
"~--", 3);
1103 while ((remove_tilde = strstr(str,
"pkg-config~")) !=
NULL) {
1104 strncpy(remove_tilde,
"pkg-config ", 11);
1107 splitconf = strtok(str,
"~");
1108 av_log(
NULL, level,
"\n%sconfiguration:\n", indent);
1109 while (splitconf !=
NULL) {
1110 av_log(
NULL, level,
"%s%s%s\n", indent, indent, splitconf);
1111 splitconf = strtok(
NULL,
"~");
1147 "This version of %s has nonfree parts compiled in.\n"
1148 "Therefore it is not legally redistributable.\n",
1152 "%s is free software; you can redistribute it and/or modify\n"
1153 "it under the terms of the GNU General Public License as published by\n"
1154 "the Free Software Foundation; either version 3 of the License, or\n"
1155 "(at your option) any later version.\n"
1157 "%s is distributed in the hope that it will be useful,\n"
1158 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1159 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1160 "GNU General Public License for more details.\n"
1162 "You should have received a copy of the GNU General Public License\n"
1163 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1167 "%s is free software; you can redistribute it and/or modify\n"
1168 "it under the terms of the GNU General Public License as published by\n"
1169 "the Free Software Foundation; either version 2 of the License, or\n"
1170 "(at your option) any later version.\n"
1172 "%s is distributed in the hope that it will be useful,\n"
1173 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1174 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1175 "GNU General Public License for more details.\n"
1177 "You should have received a copy of the GNU General Public License\n"
1178 "along with %s; if not, write to the Free Software\n"
1179 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1183 "%s is free software; you can redistribute it and/or modify\n"
1184 "it under the terms of the GNU Lesser General Public License as published by\n"
1185 "the Free Software Foundation; either version 3 of the License, or\n"
1186 "(at your option) any later version.\n"
1188 "%s is distributed in the hope that it will be useful,\n"
1189 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1190 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1191 "GNU Lesser General Public License for more details.\n"
1193 "You should have received a copy of the GNU Lesser General Public License\n"
1194 "along with %s. If not, see <http://www.gnu.org/licenses/>.\n",
1198 "%s is free software; you can redistribute it and/or\n"
1199 "modify it under the terms of the GNU Lesser General Public\n"
1200 "License as published by the Free Software Foundation; either\n"
1201 "version 2.1 of the License, or (at your option) any later version.\n"
1203 "%s is distributed in the hope that it will be useful,\n"
1204 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1205 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
1206 "Lesser General Public License for more details.\n"
1208 "You should have received a copy of the GNU Lesser General Public\n"
1209 "License along with %s; if not, write to the Free Software\n"
1210 "Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n",
1228 const char *last_name;
1232 " D. = Demuxing supported\n"
1233 " .E = Muxing supported\n"
1234 " --\n", device_only ?
"Devices:" :
"File formats:");
1240 const char *long_name =
NULL;
1244 if (!is_dev && device_only)
1246 if ((!name || strcmp(ofmt->
name, name) < 0) &&
1247 strcmp(ofmt->
name, last_name) > 0) {
1255 if (!is_dev && device_only)
1257 if ((!name || strcmp(ifmt->
name, name) < 0) &&
1258 strcmp(ifmt->
name, last_name) > 0) {
1263 if (name && strcmp(ifmt->
name, name) == 0)
1270 printf(
" %s%s %-15s %s\n",
1274 long_name ? long_name:
" ");
1289 #define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name) \
1290 if (codec->field) { \
1291 const type *p = codec->field; \
1293 printf(" Supported " list_name ":"); \
1294 while (*p != term) { \
1296 printf(" %s", name); \
1306 printf(
"%s %s [%s]:\n", encoder ?
"Encoder" :
"Decoder", c->
name,
1311 printf(
" Threading capabilities: ");
1318 default: printf(
"no");
break;
1326 printf(
" Supported framerates:");
1328 printf(
" %d/%d", fps->
num, fps->
den);
1357 default:
return '?';
1365 if (prev->
id ==
id &&
1377 return (*da)->type != (*db)->type ? (*da)->type - (*db)->type :
1378 strcmp((*da)->name, (*db)->name);
1385 unsigned nb_codecs = 0, i = 0;
1389 if (!(codecs =
av_calloc(nb_codecs,
sizeof(*codecs)))) {
1406 printf(
" (%s: ", encoder ?
"encoders" :
"decoders");
1409 printf(
"%s ", codec->
name);
1420 " D..... = Decoding supported\n"
1421 " .E.... = Encoding supported\n"
1422 " ..V... = Video codec\n"
1423 " ..A... = Audio codec\n"
1424 " ..S... = Subtitle codec\n"
1425 " ...I.. = Intra frame-only codec\n"
1426 " ....L. = Lossy compression\n"
1427 " .....S = Lossless compression\n"
1429 for (i = 0; i < nb_codecs; i++) {
1433 if (strstr(desc->
name,
"_deprecated"))
1450 if (strcmp(codec->
name, desc->
name)) {
1457 if (strcmp(codec->
name, desc->
name)) {
1477 " S..... = Subtitle\n"
1478 " .F.... = Frame-level multithreading\n"
1479 " ..S... = Slice-level multithreading\n"
1480 " ...X.. = Codec is experimental\n"
1481 " ....B. = Supports draw_horiz_band\n"
1482 " .....D = Supports direct rendering method 1\n"
1484 encoder ?
"Encoders" :
"Decoders");
1485 for (i = 0; i < nb_codecs; i++) {
1498 if (strcmp(codec->
name, desc->
name))
1499 printf(
" (codec %s)", desc->
name);
1523 printf(
"Bitstream filters:\n");
1525 printf(
"%s\n", bsf->
name);
1532 void *opaque =
NULL;
1535 printf(
"Supported file protocols:\n"
1538 printf(
"%s\n", name);
1539 printf(
"Output:\n");
1541 printf(
"%s\n", name);
1549 char descr[64], *descr_cur;
1554 " T.. = Timeline support\n"
1555 " .S. = Slice threading\n"
1556 " ..C = Commmand support\n"
1557 " A = Audio input/output\n"
1558 " V = Video input/output\n"
1559 " N = Dynamic number and/or type of input/output\n"
1560 " | = Source or sink filter\n");
1563 for (i = 0; i < 2; i++) {
1565 *(descr_cur++) =
'-';
1566 *(descr_cur++) =
'>';
1569 for (j = 0; pad && pad[j].
name; j++) {
1570 if (descr_cur >= descr +
sizeof(descr) - 4)
1579 printf(
" %c%c%c %-16s %-10s %s\n",
1586 printf(
"No filters available: libavfilter disabled\n");
1597 printf(
"%-32s #RRGGBB\n",
"name");
1600 printf(
"%-32s #%02x%02x%02x\n", name, rgb[0], rgb[1], rgb[2]);
1609 printf(
"Pixel formats:\n"
1610 "I.... = Supported Input format for conversion\n"
1611 ".O... = Supported Output format for conversion\n"
1612 "..H.. = Hardware accelerated format\n"
1613 "...P. = Paletted format\n"
1614 "....B = Bitstream format\n"
1615 "FLAGS NAME NB_COMPONENTS BITS_PER_PIXEL\n"
1619 # define sws_isSupportedInput(x) 0
1620 # define sws_isSupportedOutput(x) 0
1625 printf(
"%c%c%c%c%c %-16s %d %2d\n",
1642 const char *
name, *descr;
1644 printf(
"Individual channels:\n"
1645 "NAME DESCRIPTION\n");
1646 for (i = 0; i < 63; i++) {
1651 printf(
"%-14s %s\n", name, descr);
1653 printf(
"\nStandard channel layouts:\n"
1654 "NAME DECOMPOSITION\n");
1657 printf(
"%-14s ", name);
1658 for (j = 1; j; j <<= 1)
1701 "but no %s for it are available. FFmpeg might need to be "
1702 "recompiled with additional external libraries.\n",
1703 name, encoder ?
"encoders" :
"decoders");
1723 printf(
" Common extensions: %s.\n", fmt->
extensions);
1742 printf(
" Common extensions: %s.\n", fmt->
extensions);
1744 printf(
" Mime type: %s.\n", fmt->
mime_type);
1747 printf(
" Default video codec: %s.\n", desc->
name);
1751 printf(
" Default audio codec: %s.\n", desc->
name);
1755 printf(
" Default subtitle codec: %s.\n", desc->
name);
1777 printf(
"Filter %s\n", f->
name);
1782 printf(
" slice threading supported\n");
1784 printf(
" Inputs:\n");
1786 for (i = 0; i <
count; i++) {
1791 printf(
" dynamic (depending on the options)\n");
1793 printf(
" none (source filter)\n");
1795 printf(
" Outputs:\n");
1797 for (i = 0; i <
count; i++) {
1802 printf(
" dynamic (depending on the options)\n");
1804 printf(
" none (sink filter)\n");
1810 printf(
"This filter has support for timeline through the 'enable' option.\n");
1813 "can not to satisfy request\n");
1826 par = strchr(topic,
'=');
1832 }
else if (!strcmp(topic,
"decoder")) {
1834 }
else if (!strcmp(topic,
"encoder")) {
1836 }
else if (!strcmp(topic,
"demuxer")) {
1838 }
else if (!strcmp(topic,
"muxer")) {
1841 }
else if (!strcmp(topic,
"filter")) {
1857 while (c !=
'\n' && c != EOF)
1875 ret = fseek(f, 0, SEEK_END);
1888 ret = fseek(f, 0, SEEK_SET);
1900 ret = fread(*bufptr, 1, *size, f);
1906 filename, strerror(errno));
1911 (*bufptr)[(*size)++] =
'\0';
1922 const char *preset_name,
int is_path,
1923 const char *codec_name)
1927 const char *base[3] = { getenv(
"FFMPEG_DATADIR"),
1932 av_strlcpy(filename, preset_name, filename_size);
1933 f = fopen(filename,
"r");
1936 char datadir[MAX_PATH], *ls;
1939 if (GetModuleFileNameA(GetModuleHandleA(
NULL), datadir,
sizeof(datadir) - 1))
1941 for (ls = datadir; ls < datadir + strlen(datadir); ls++)
1942 if (*ls ==
'\\') *ls =
'/';
1944 if (ls = strrchr(datadir,
'/'))
1947 strncat(datadir,
"/ffpresets",
sizeof(datadir) - 1 - strlen(datadir));
1952 for (i = 0; i < 3 && !f; i++) {
1955 snprintf(filename, filename_size,
"%s%s/%s.ffpreset", base[i],
1956 i != 1 ?
"" :
"/.ffmpeg", preset_name);
1957 f = fopen(filename,
"r");
1958 if (!f && codec_name) {
1960 "%s%s/%s-%s.ffpreset",
1961 base[i], i != 1 ?
"" :
"/.ffmpeg", codec_name,
1963 f = fopen(filename,
"r");
2009 char *p = strchr(t->
key,
':');
2014 case 1: *p = 0;
break;
2025 else if (t->
key[0] == prefix &&
2047 "Could not alloc memory for stream options.\n");
2058 if (new_size >= INT_MAX / elem_size) {
2062 if (*size < new_size) {
2068 memset(tmp + *size*elem_size, 0, (new_size-*size) * elem_size);
2084 printf(
"Audo-detected sources for %s:\n", fmt->
name);
2087 printf(
"Cannot list sources. Not implemented.\n");
2092 printf(
"Cannot list sources.\n");
2096 for (i = 0; i < device_list->
nb_devices; i++) {
2097 printf(
"%s %s [%s]\n", device_list->
default_device == i ?
"*" :
" ",
2114 printf(
"Audo-detected sinks for %s:\n", fmt->
name);
2117 printf(
"Cannot list sinks. Not implemented.\n");
2122 printf(
"Cannot list sinks.\n");
2126 for (i = 0; i < device_list->
nb_devices; i++) {
2127 printf(
"%s %s [%s]\n", device_list->
default_device == i ?
"*" :
" ",
2140 char *opts_str =
NULL;
2145 if ((opts_str = strchr(*dev,
','))) {
2146 *(opts_str++) =
'\0';
2153 printf(
"\nDevice name is not provided.\n"
2154 "You can pass devicename[,opt1=val1[,opt2=val2...]] as an argument.\n\n");
2174 if (!strcmp(fmt->
name,
"lavfi"))
AVOutputFormat * av_output_audio_device_next(AVOutputFormat *d)
Audio output devices iterator.
#define AV_PIX_FMT_FLAG_PAL
Pixel format has a palette in data[1], values are indexes in this palette.
int parse_optgroup(void *optctx, OptionGroup *g)
Parse an options group and write results into optctx.
int sws_isSupportedOutput(enum AVPixelFormat pix_fmt)
Return a positive value if pix_fmt is a supported output format, 0 otherwise.
#define AV_CODEC_PROP_INTRA_ONLY
Codec uses only intra compression.
const char const char void * val
static int print_device_sinks(AVOutputFormat *fmt, AVDictionary *opts)
AVDictionary * resample_opts
int show_sinks(void *optctx, const char *opt, const char *arg)
Print a listing containing audodetected sinks of the output device.
Number of sample formats. DO NOT USE if linking dynamically.
static enum AVPixelFormat pix_fmt
void av_bprintf(AVBPrint *buf, const char *fmt,...)
static void show_help_filter(const char *name)
int show_decoders(void *optctx, const char *opt, const char *arg)
Print a listing containing all the decoders supported by the program.
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
const char * name
< group name
static void finish_group(OptionParseContext *octx, int group_idx, const char *arg)
int show_license(void *optctx, const char *opt, const char *arg)
Print the license of the program to stdout.
#define AV_CODEC_PROP_LOSSY
Codec supports lossy compression.
#define AV_OPT_FLAG_SUBTITLE_PARAM
char * device_description
human friendly name
int(* func_arg)(void *, const char *, const char *)
#define AV_LOG_WARNING
Something somehow does not look correct.
char * av_get_sample_fmt_string(char *buf, int buf_size, enum AVSampleFormat sample_fmt)
Generate a string corresponding to the sample format with sample_fmt, or a header if sample_fmt is ne...
Main libavfilter public API header.
int av_parse_time(int64_t *timeval, const char *timestr, int duration)
Parse timestr and return in *time a corresponding number of microseconds.
void av_log_set_level(int level)
Set the log level.
int split_commandline(OptionParseContext *octx, int argc, char *argv[], const OptionDef *options, const OptionGroupDef *groups, int nb_groups)
Split the commandline into an intermediate form convenient for further processing.
int av_get_bits_per_pixel(const AVPixFmtDescriptor *pixdesc)
Return the number of bits per pixel used by the pixel format described by pixdesc.
const AVClass * av_opt_child_class_next(const AVClass *parent, const AVClass *prev)
Iterate over potential AVOptions-enabled children of parent.
int opt_loglevel(void *optctx, const char *opt, const char *arg)
Set the libav* libraries log level.
int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
Check if the given stream matches a stream specifier.
FILE * av_fopen_utf8(const char *path, const char *mode)
Open a file using a UTF-8 filename.
#define AVFILTER_FLAG_DYNAMIC_INPUTS
The number of the filter inputs is not determined just by AVFilter.inputs.
enum AVMediaType avfilter_pad_get_type(const AVFilterPad *pads, int pad_idx)
Get the type of an AVFilterPad.
char * device_name
device name, format depends on device
#define AV_OPT_FLAG_AUDIO_PARAM
void show_banner(int argc, char **argv, const OptionDef *options)
Print the program banner to stderr.
static int is_device(const AVClass *avclass)
int show_protocols(void *optctx, const char *opt, const char *arg)
Print a listing containing all the protocols supported by the program.
const char * sep
Option to be used as group separator.
#define GET_CH_LAYOUT_DESC(ch_layout)
static const AVOption * opt_find(void *obj, const char *name, const char *unit, int opt_flags, int search_flags)
#define FF_ARRAY_ELEMS(a)
int show_devices(void *optctx, const char *opt, const char *arg)
Print a listing containing all the devices supported by the program.
int show_formats(void *optctx, const char *opt, const char *arg)
Print a listing containing all the formats supported by the program (including devices).
const AVClass * sws_get_class(void)
Get the AVClass for swsContext.
void av_max_alloc(size_t max)
Set the maximum size that may me allocated in one block.
int show_pix_fmts(void *optctx, const char *opt, const char *arg)
Print a listing containing all the pixel formats supported by the program.
AVDictionary * filter_codec_opts(AVDictionary *opts, enum AVCodecID codec_id, AVFormatContext *s, AVStream *st, AVCodec *codec)
Filter out options for given codec.
int av_bprint_finalize(AVBPrint *buf, char **ret_str)
Finalize a print buffer.
void uninit_parse_context(OptionParseContext *octx)
Free all allocated memory in an OptionParseContext.
int av_codec_is_decoder(const AVCodec *codec)
int av_get_standard_channel_layout(unsigned index, uint64_t *layout, const char **name)
Get the value and name of a standard channel layout.
const AVCodecDescriptor * avcodec_descriptor_next(const AVCodecDescriptor *prev)
Iterate over all codec descriptors known to libavcodec.
const AVClass * avresample_get_class(void)
Get the AVClass for AVAudioResampleContext.
const AVClass * avcodec_get_class(void)
Get the AVClass for AVCodecContext.
int av_codec_is_encoder(const AVCodec *codec)
const char * name
Pad name.
#define AV_LOG_QUIET
Print no output.
#define av_assert0(cond)
assert() equivalent, that is always enabled.
int show_codecs(void *optctx, const char *opt, const char *arg)
Print a listing containing all the codecs supported by the program.
static double cb(void *priv, double x, double y)
static void dump_argument(const char *a)
void register_exit(void(*cb)(int ret))
Register a program-specific cleanup routine.
void log_callback_help(void *ptr, int level, const char *fmt, va_list vl)
Trivial log callback.
av_cold struct SwrContext * swr_alloc(void)
Allocate SwrContext.
Opaque data information usually continuous.
int opt_default(void *optctx, const char *opt, const char *arg)
Fallback for options that are not explicitly handled, these will be parsed through AVOptions...
#define AV_LOG_PANIC
Something went really wrong and we will crash now.
#define va_copy(dst, src)
static const OptionGroupDef groups[]
static unsigned get_codecs_sorted(const AVCodecDescriptor ***rcodecs)
AVS_FilterInfo AVS_Value child
#define AV_CODEC_PROP_LOSSLESS
Codec supports lossless compression.
int opt_max_alloc(void *optctx, const char *opt, const char *arg)
#define media_type_string
int avformat_match_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec)
Check if the stream st contained in s is matched by the stream specifier spec.
static void init_parse_context(OptionParseContext *octx, const OptionGroupDef *groups, int nb_groups)
#define AV_IS_INPUT_DEVICE(category)
int show_buildconf(void *optctx, const char *opt, const char *arg)
Print the build configuration of the program to stdout.
void init_opts(void)
Initialize the cmdutils option system, in particular allocate the *_opts contexts.
AVStream ** streams
A list of all streams in the file.
int flags
A combination of AVFILTER_FLAG_*.
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
void parse_options(void *optctx, int argc, char **argv, const OptionDef *options, void(*parse_arg_function)(void *, const char *))
struct SwsContext * sws_getContext(int srcW, int srcH, enum AVPixelFormat srcFormat, int dstW, int dstH, enum AVPixelFormat dstFormat, int flags, SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
Allocate and return an SwsContext.
const AVFilter * avfilter_next(const AVFilter *prev)
Iterate over all registered filters.
static void print_all_libs_info(int flags, int level)
#define AVERROR_EOF
End of file.
AVInputFormat * av_input_video_device_next(AVInputFormat *d)
Video input devices iterator.
#define AV_LOG_VERBOSE
Detailed information.
const AVClass * avformat_get_class(void)
Get the AVClass for AVFormatContext.
void parse_loglevel(int argc, char **argv, const OptionDef *options)
Find the '-loglevel' option in the command line args and apply it.
#define AVFILTER_FLAG_DYNAMIC_OUTPUTS
The number of the filter outputs is not determined just by AVFilter.outputs.
void show_help_options(const OptionDef *options, const char *msg, int req_flags, int rej_flags, int alt_flags)
Print help for all options matching specified flags.
int(* process_command)(AVFilterContext *, const char *cmd, const char *arg, char *res, int res_len, int flags)
Make the filter instance process a command.
int show_sources(void *optctx, const char *opt, const char *arg)
Print a listing containing audodetected sources of the input device.
const OptionDef options[]
static void print_codecs(int encoder)
int locate_option(int argc, char **argv, const OptionDef *options, const char *optname)
Return index of option opt in argv or 0 if not found.
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
struct AVOutputFormat * oformat
The output container format.
AVDictionary ** setup_find_stream_info_opts(AVFormatContext *s, AVDictionary *codec_opts)
Setup AVCodecContext options for avformat_find_stream_info().
AVCodec * avcodec_find_encoder_by_name(const char *name)
Find a registered encoder with the specified name.
AVDictionary * format_opts
int show_help(void *optctx, const char *opt, const char *arg)
Generic -h handler common to all fftools.
A filter pad used for either input or output.
static void * av_x_if_null(const void *p, const void *x)
Return x default pointer in case p is NULL.
Main libavdevice API header.
int flags
Option flags that must be set on each option that is applied to this group.
void avdevice_free_list_devices(AVDeviceInfoList **device_list)
Convenient function to free result of avdevice_list_devices().
libswresample public header
AVCodecID
Identify the syntax and semantics of the bitstream.
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
void av_log_format_line(void *ptr, int level, const char *fmt, va_list vl, char *line, int line_size, int *print_prefix)
Format a line of log the same way as the default callback.
#define AV_OPT_FLAG_FILTERING_PARAM
a generic parameter which can be set by the user for filtering
int show_sample_fmts(void *optctx, const char *opt, const char *arg)
Print a listing containing all the sample formats supported by the program.
AVCodec * av_codec_next(const AVCodec *c)
If c is NULL, returns the first registered codec, if c is non-NULL, returns the next registered codec...
The libswresample context.
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max)
int capabilities
Codec capabilities.
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
static int show_formats_devices(void *optctx, const char *opt, const char *arg, int device_only)
static void show_help_muxer(const char *name)
int parse_option(void *optctx, const char *opt, const char *arg, const OptionDef *options)
Parse one given option.
#define AV_LOG_SKIP_REPEATED
Skip repeated messages, this requires the user app to use av_log() instead of (f)printf as the 2 woul...
#define AV_PIX_FMT_FLAG_HWACCEL
Pixel format is an HW accelerated format.
simple assert() macros that are a bit more flexible than ISO C assert().
#define PRINT_CODEC_SUPPORTED(codec, field, type, list_name, term, get_name)
int av_log_get_level(void)
Get the current log level.
const char * name
Name of the codec implementation.
int av_match_name(const char *name, const char *names)
Match instances of a name in a comma-separated list of names.
AVClassCategory category
Category used for visualization (like color) This is only set if the category is equal for all object...
int avdevice_list_input_sources(AVInputFormat *device, const char *device_name, AVDictionary *device_options, AVDeviceInfoList **device_list)
List devices.
const char * long_name
A more descriptive name for this codec.
AVDeviceInfo ** devices
list of autodetected devices
static const uint8_t offset[127][2]
int show_filters(void *optctx, const char *opt, const char *arg)
Print a listing containing all the filters supported by the program.
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
void av_log_default_callback(void *ptr, int level, const char *fmt, va_list vl)
Default logging callback.
int av_parse_cpu_caps(unsigned *flags, const char *s)
Parse CPU caps from a string and update the given AV_CPU_* flags based on that.
const AVCodecDescriptor * avcodec_descriptor_get(enum AVCodecID id)
static const OptionDef * find_option(const OptionDef *po, const char *name)
AVCodecContext * codec
Codec context associated with this stream.
const char * av_get_known_color_name(int color_idx, const uint8_t **rgbp)
Get the name of a color from the internal table of hard-coded named colors.
int opt_report(const char *opt)
int props
Codec properties, a combination of AV_CODEC_PROP_* flags.
const AVFilter * avfilter_get_by_name(const char *name)
Get a filter definition matching the given name.
const int program_birth_year
program birth year, defined by the program for show_banner()
const AVOption * av_opt_find(void *obj, const char *name, const char *unit, int opt_flags, int search_flags)
Look for an option in an object.
#define AV_IS_OUTPUT_DEVICE(category)
AVBitStreamFilter * av_bitstream_filter_next(const AVBitStreamFilter *f)
If f is NULL, return the first registered bitstream filter, if f is non-NULL, return the next registe...
unsigned int nb_streams
Number of elements in AVFormatContext.streams.
enum AVPixelFormat av_pix_fmt_desc_get_id(const AVPixFmtDescriptor *desc)
AVInputFormat * av_find_input_format(const char *short_name)
Find AVInputFormat based on the short name of the input format.
static const uint16_t fc[]
uint8_t nb_components
The number of components each pixel has, (1-4)
int show_colors(void *optctx, const char *opt, const char *arg)
Print a listing containing all the color names and values recognized by the program.
static void log_callback_report(void *ptr, int level, const char *fmt, va_list vl)
#define CODEC_CAP_DRAW_HORIZ_BAND
Decoder can use draw_horiz_band callback.
void av_log_set_callback(void(*callback)(void *, int, const char *, va_list))
Set the logging callback.
#define AV_OPT_SEARCH_CHILDREN
Search in possible children of the given object first.
int show_bsfs(void *optctx, const char *opt, const char *arg)
Print a listing containing all the bit stream filters supported by the program.
int avdevice_list_output_sinks(AVOutputFormat *device, const char *device_name, AVDictionary *device_options, AVDeviceInfoList **device_list)
static void print_codecs_for_id(enum AVCodecID id, int encoder)
static int init_report(const char *env)
const char * avio_enum_protocols(void **opaque, int output)
Iterate through names of available protocols.
#define GET_PIX_FMT_NAME(pix_fmt)
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
const OptionGroupDef * group_def
A list of option groups that all have the same group type (e.g.
void sws_freeContext(struct SwsContext *swsContext)
Free the swscaler context swsContext.
void show_help_default(const char *opt, const char *arg)
Per-fftool specific help handler.
AVDictionary * resample_opts
static int av_bprint_is_complete(const AVBPrint *buf)
Test if the print buffer is complete (not truncated).
AVOutputFormat * av_guess_format(const char *short_name, const char *filename, const char *mime_type)
Return the output format in the list of registered output formats which best matches the provided par...
static int show_sinks_sources_parse_arg(const char *arg, char **dev, AVDictionary **opts)
Opaque data information usually sparse.
const AVClass * swr_get_class(void)
Get the AVClass for SwrContext.
int opt_timelimit(void *optctx, const char *opt, const char *arg)
Limit the execution time.
AVOutputFormat * av_output_video_device_next(AVOutputFormat *d)
Video output devices iterator.
AVOutputFormat * av_oformat_next(const AVOutputFormat *f)
If f is NULL, returns the first registered output format, if f is non-NULL, returns the next register...
const AVCodecDescriptor * avcodec_descriptor_get_by_name(const char *name)
#define GET_SAMPLE_FMT_NAME(sample_fmt)
void exit_program(int ret)
Wraps exit with a program-specific cleanup routine.
const AVFilterPad * inputs
List of inputs, terminated by a zeroed element.
static char get_media_type_char(enum AVMediaType type)
double av_strtod(const char *numstr, char **tail)
Parse the string in numstr and return its value as a double.
int av_dict_parse_string(AVDictionary **pm, const char *str, const char *key_val_sep, const char *pairs_sep, int flags)
Parse the key/value pairs list and add the parsed entries to a dictionary.
#define GET_SAMPLE_RATE_NAME(rate)
const char * long_name
Descriptive name for the codec, meant to be more human readable than name.
const AVClass * priv_class
A class for the private data, used to declare filter private AVOptions.
#define AV_LOG_INFO
Standard information.
static const AVCodec * next_codec_for_id(enum AVCodecID id, const AVCodec *prev, int encoder)
enum AVMediaType codec_type
const AVRational * supported_framerates
array of supported framerates, or NULL if any, array is terminated by {0,0}
AVSampleFormat
Audio sample formats.
static int print_device_sources(AVInputFormat *fmt, AVDictionary *opts)
char * av_strdup(const char *s)
Duplicate the string s.
int av_opt_show2(void *obj, void *av_log_obj, int req_flags, int rej_flags)
Show the obj options.
Descriptor that unambiguously describes how the bits of a pixel are stored in the up to 4 data planes...
#define AV_OPT_FLAG_VIDEO_PARAM
AVCodec * avcodec_find_decoder(enum AVCodecID id)
Find a registered decoder with a matching codec ID.
static void(WINAPI *cond_broadcast)(pthread_cond_t *cond)
int av_log_get_flags(void)
av_cold void swr_free(SwrContext **ss)
Free the given SwrContext and set the pointer to NULL.
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
FILE * get_preset_file(char *filename, size_t filename_size, const char *preset_name, int is_path, const char *codec_name)
Get a file corresponding to a preset file.
const OptionGroupDef * group_def
#define PRINT_LIB_INFO(libname, LIBNAME, flags, level)
Describe the class of an AVClass context structure.
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
rational number numerator/denominator
static void expand_filename_template(AVBPrint *bp, const char *template, struct tm *tm)
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
int64_t parse_time_or_die(const char *context, const char *timestr, int is_duration)
Parse a string specifying a time and return its corresponding value as a number of microseconds...
void * grow_array(void *array, int elem_size, int *size, int new_size)
Realloc array to hold new_size elements of elem_size.
struct SwsContext * sws_opts
const char * name
Filter name.
const char * name
Name of the codec described by this descriptor.
const char * avfilter_pad_get_name(const AVFilterPad *pads, int pad_idx)
Get the name of an AVFilterPad.
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
static void print_codec(const AVCodec *c)
int default_device
index of default device or -1 if no default
#define AV_PIX_FMT_FLAG_BITSTREAM
All values of a component are bit-wise packed end to end.
size_t av_strlcat(char *dst, const char *src, size_t size)
Append the string src to the string dst, but to a total length of no more than size - 1 bytes...
This struct describes the properties of a single codec described by an AVCodecID. ...
double parse_number_or_die(const char *context, const char *numstr, int type, double min, double max)
Parse a string and return its corresponding value as a double.
void * av_calloc(size_t nmemb, size_t size)
Allocate a block of nmemb * size bytes with alignment suitable for all memory accesses (including vec...
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size)
Read the file with name filename, and put its content in a newly allocated 0-terminated buffer...
AVCodec * avcodec_find_decoder_by_name(const char *name)
Find a registered decoder with the specified name.
const AVClass * priv_class
AVClass for the private context.
static int match_group_separator(const OptionGroupDef *groups, int nb_groups, const char *opt)
static int swscale(SwsContext *c, const uint8_t *src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t *dst[], int dstStride[])
int av_strerror(int errnum, char *errbuf, size_t errbuf_size)
Put a description of the AVERROR code errnum in errbuf.
uint8_t pi<< 24) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31))))#defineSET_CONV_FUNC_GROUP(ofmt, ifmt) staticvoidset_generic_function(AudioConvert *ac){}voidff_audio_convert_free(AudioConvert **ac){if(!*ac) return;ff_dither_free(&(*ac) ->dc);av_freep(ac);}AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, intsample_rate, intapply_map){AudioConvert *ac;intin_planar, out_planar;ac=av_mallocz(sizeof(*ac));if(!ac) returnNULL;ac->avr=avr;ac->out_fmt=out_fmt;ac->in_fmt=in_fmt;ac->channels=channels;ac->apply_map=apply_map;if(avr->dither_method!=AV_RESAMPLE_DITHER_NONE &&av_get_packed_sample_fmt(out_fmt)==AV_SAMPLE_FMT_S16 &&av_get_bytes_per_sample(in_fmt)>2){ac->dc=ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, apply_map);if(!ac->dc){av_free(ac);returnNULL;}returnac;}in_planar=ff_sample_fmt_is_planar(in_fmt, channels);out_planar=ff_sample_fmt_is_planar(out_fmt, channels);if(in_planar==out_planar){ac->func_type=CONV_FUNC_TYPE_FLAT;ac->planes=in_planar?ac->channels:1;}elseif(in_planar) ac->func_type=CONV_FUNC_TYPE_INTERLEAVE;elseac->func_type=CONV_FUNC_TYPE_DEINTERLEAVE;set_generic_function(ac);if(ARCH_AARCH64) ff_audio_convert_init_aarch64(ac);if(ARCH_ARM) ff_audio_convert_init_arm(ac);if(ARCH_X86) ff_audio_convert_init_x86(ac);returnac;}intff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in){intuse_generic=1;intlen=in->nb_samples;intp;if(ac->dc){av_dlog(ac->avr,"%dsamples-audio_convert:%sto%s(dithered)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt));returnff_convert_dither(ac-> out
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
An option extracted from the commandline.
static FILE * report_file
void print_error(const char *filename, int err)
Print an error message to stderr, indicating filename and a human readable description of the error c...
static void filter(MpegAudioContext *s, int ch, const short *samples, int incr)
AVDictionary * codec_opts
#define CODEC_CAP_SLICE_THREADS
Codec supports slice-based (or partition-based) multithreading.
AVDictionary * format_opts
#define CODEC_CAP_FRAME_THREADS
Codec supports frame-level multithreading.
#define AVFILTER_FLAG_SUPPORT_TIMELINE
Handy mask to test whether the filter supports or no the timeline feature (internally or generically)...
static void(* program_exit)(int ret)
#define CODEC_CAP_EXPERIMENTAL
Codec is experimental and is thus avoided in favor of non experimental encoders.
static void print_buildconf(int flags, int level)
AVInputFormat * av_input_audio_device_next(AVInputFormat *d)
Audio input devices iterator.
#define AV_OPT_SEARCH_FAKE_OBJ
The obj passed to av_opt_find() is fake – only a double pointer to AVClass instead of a required poi...
void * av_realloc_array(void *ptr, size_t nmemb, size_t size)
void uninit_opts(void)
Uninitialize the cmdutils option system, in particular free the *_opts contexts and their contents...
#define FFMPEG_CONFIGURATION
#define GROW_ARRAY(array, nb_elems)
const char * description
A description of the filter.
const char * av_get_channel_name(uint64_t channel)
Get the name of a given channel.
#define AVERROR_OPTION_NOT_FOUND
Option not found.
static int report_file_level
int av_opt_get_key_value(const char **ropts, const char *key_val_sep, const char *pairs_sep, unsigned flags, char **rkey, char **rval)
Extract a key-value pair from the beginning of a string.
static void prepare_app_arguments(int *argc_ptr, char ***argv_ptr)
static int write_option(void *optctx, const OptionDef *po, const char *opt, const char *arg)
void av_log_set_flags(int arg)
void show_help_children(const AVClass *class, int flags)
Show help for all options with given flags in class and all its children.
int sws_isSupportedInput(enum AVPixelFormat pix_fmt)
Return a positive value if pix_fmt is a supported input format, 0 otherwise.
int show_layouts(void *optctx, const char *opt, const char *arg)
Print a listing containing all the standard channel layouts supported by the program.
int avfilter_pad_count(const AVFilterPad *pads)
Get the number of elements in a NULL-terminated array of AVFilterPads (e.g.
int opt_cpuflags(void *optctx, const char *opt, const char *arg)
Override the cpuflags.
static void * av_mallocz_array(size_t nmemb, size_t size)
static enum AVSampleFormat sample_fmts[]
AVDictionary * codec_opts
int read_yesno(void)
Return a positive value if a line read from standard input starts with [yY], otherwise return 0...
const AVFilterPad * outputs
List of outputs, terminated by a zeroed element.
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
static void show_help_demuxer(const char *name)
const char * av_get_channel_description(uint64_t channel)
Get the description of a given channel.
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
int show_version(void *optctx, const char *opt, const char *arg)
Print the version of the program to stdout.
void av_force_cpu_flags(int arg)
Disables cpu detection and forces the specified flags.
int nb_devices
number of autodetected devices
struct SwsContext * sws_opts
static void print_program_info(int flags, int level)
AVPixelFormat
Pixel format.
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
const char program_name[]
program name, defined by the program for show_version().
AVInputFormat * av_iformat_next(const AVInputFormat *f)
If f is NULL, returns the first registered input format, if f is non-NULL, returns the next registere...
static void show_help_codec(const char *name, int encoder)
static int compare_codec_desc(const void *a, const void *b)
int show_encoders(void *optctx, const char *opt, const char *arg)
Print a listing containing all the encoders supported by the program.
simple arithmetic expression evaluator
const AVPixFmtDescriptor * av_pix_fmt_desc_next(const AVPixFmtDescriptor *prev)
Iterate over all pixel format descriptors known to libavutil.
static void add_opt(OptionParseContext *octx, const OptionDef *opt, const char *key, const char *val)
void av_bprint_chars(AVBPrint *buf, char c, unsigned n)
Append char c n times to a print buffer.