forked from KolibriOS/kolibrios
144 lines
4.1 KiB
C
144 lines
4.1 KiB
C
/*
|
|
* Copyright (c) 2011 Anton Khirnov
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/*
|
|
* enumerate avoptions and format them in texinfo format
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "libavformat/avformat.h"
|
|
#include "libavcodec/avcodec.h"
|
|
#include "libavutil/log.h"
|
|
#include "libavutil/opt.h"
|
|
|
|
static void print_usage(void)
|
|
{
|
|
fprintf(stderr, "Usage: enum_options type\n"
|
|
"type: format codec\n");
|
|
exit(1);
|
|
}
|
|
|
|
static void print_option(const AVClass *class, const AVOption *o)
|
|
{
|
|
printf("@item -%s @var{", o->name);
|
|
switch (o->type) {
|
|
case FF_OPT_TYPE_BINARY: printf("hexadecimal string"); break;
|
|
case FF_OPT_TYPE_STRING: printf("string"); break;
|
|
case FF_OPT_TYPE_INT:
|
|
case FF_OPT_TYPE_INT64: printf("integer"); break;
|
|
case FF_OPT_TYPE_FLOAT:
|
|
case FF_OPT_TYPE_DOUBLE: printf("float"); break;
|
|
case FF_OPT_TYPE_RATIONAL: printf("rational number"); break;
|
|
case FF_OPT_TYPE_FLAGS: printf("flags"); break;
|
|
default: printf("value"); break;
|
|
}
|
|
printf("} (@emph{");
|
|
|
|
if (o->flags & AV_OPT_FLAG_ENCODING_PARAM) {
|
|
printf("input");
|
|
if (o->flags & AV_OPT_FLAG_ENCODING_PARAM)
|
|
printf("/");
|
|
}
|
|
if (o->flags & AV_OPT_FLAG_ENCODING_PARAM)
|
|
printf("output");
|
|
|
|
printf("})\n");
|
|
if (o->help)
|
|
printf("%s\n", o->help);
|
|
|
|
if (o->unit) {
|
|
const AVOption *u = NULL;
|
|
printf("\nPossible values:\n@table @samp\n");
|
|
|
|
while ((u = av_next_option(&class, u)))
|
|
if (u->type == FF_OPT_TYPE_CONST && u->unit && !strcmp(u->unit, o->unit))
|
|
printf("@item %s\n%s\n", u->name, u->help ? u->help : "");
|
|
printf("@end table\n");
|
|
}
|
|
}
|
|
|
|
static void show_opts(const AVClass *class)
|
|
{
|
|
const AVOption *o = NULL;
|
|
|
|
printf("@table @option\n");
|
|
while ((o = av_next_option(&class, o)))
|
|
if (o->type != FF_OPT_TYPE_CONST)
|
|
print_option(class, o);
|
|
printf("@end table\n");
|
|
}
|
|
|
|
static void show_format_opts(void)
|
|
{
|
|
AVInputFormat *iformat = NULL;
|
|
AVOutputFormat *oformat = NULL;
|
|
|
|
printf("@section Generic format AVOptions\n");
|
|
show_opts(avformat_get_class());
|
|
|
|
printf("@section Format-specific AVOptions\n");
|
|
while ((iformat = av_iformat_next(iformat))) {
|
|
if (!iformat->priv_class)
|
|
continue;
|
|
printf("@subsection %s AVOptions\n", iformat->priv_class->class_name);
|
|
show_opts(iformat->priv_class);
|
|
}
|
|
while ((oformat = av_oformat_next(oformat))) {
|
|
if (!oformat->priv_class)
|
|
continue;
|
|
printf("@subsection %s AVOptions\n", oformat->priv_class->class_name);
|
|
show_opts(oformat->priv_class);
|
|
}
|
|
}
|
|
|
|
static void show_codec_opts(void)
|
|
{
|
|
AVCodec *c = NULL;
|
|
|
|
printf("@section Generic codec AVOptions\n");
|
|
show_opts(avcodec_get_class());
|
|
|
|
printf("@section Codec-specific AVOptions\n");
|
|
while ((c = av_codec_next(c))) {
|
|
if (!c->priv_class)
|
|
continue;
|
|
printf("@subsection %s AVOptions\n", c->priv_class->class_name);
|
|
show_opts(c->priv_class);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
if (argc < 2)
|
|
print_usage();
|
|
|
|
av_register_all();
|
|
|
|
if (!strcmp(argv[1], "format"))
|
|
show_format_opts();
|
|
else if (!strcmp(argv[1], "codec"))
|
|
show_codec_opts();
|
|
else
|
|
print_usage();
|
|
|
|
return 0;
|
|
}
|