mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
87 lines
3.0 KiB
87 lines
3.0 KiB
/* |
|
* AVOptions |
|
* copyright (c) 2005 Michael Niedermayer <michaelni@gmx.at> |
|
* |
|
* 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 |
|
*/ |
|
|
|
#ifndef FFMPEG_OPT_H |
|
#define FFMPEG_OPT_H |
|
|
|
/** |
|
* @file opt.h |
|
* AVOptions |
|
*/ |
|
|
|
#include "rational.h" |
|
|
|
enum AVOptionType{ |
|
FF_OPT_TYPE_FLAGS, |
|
FF_OPT_TYPE_INT, |
|
FF_OPT_TYPE_INT64, |
|
FF_OPT_TYPE_DOUBLE, |
|
FF_OPT_TYPE_FLOAT, |
|
FF_OPT_TYPE_STRING, |
|
FF_OPT_TYPE_RATIONAL, |
|
FF_OPT_TYPE_CONST=128, |
|
}; |
|
|
|
/** |
|
* AVOption. |
|
*/ |
|
typedef struct AVOption { |
|
const char *name; |
|
|
|
/** |
|
* short English text help. |
|
* @todo what about other languages |
|
*/ |
|
const char *help; |
|
int offset; ///< offset to context structure where the parsed value should be stored |
|
enum AVOptionType type; |
|
|
|
double default_val; |
|
double min; |
|
double max; |
|
|
|
int flags; |
|
#define AV_OPT_FLAG_ENCODING_PARAM 1 ///< a generic parameter which can be set by the user for muxing or encoding |
|
#define AV_OPT_FLAG_DECODING_PARAM 2 ///< a generic parameter which can be set by the user for demuxing or decoding |
|
#define AV_OPT_FLAG_METADATA 4 ///< some data extracted or inserted into the file like title, comment, ... |
|
#define AV_OPT_FLAG_AUDIO_PARAM 8 |
|
#define AV_OPT_FLAG_VIDEO_PARAM 16 |
|
#define AV_OPT_FLAG_SUBTITLE_PARAM 32 |
|
//FIXME think about enc-audio, ... style flags |
|
const char *unit; |
|
} AVOption; |
|
|
|
|
|
const AVOption *av_find_opt(void *obj, const char *name, const char *unit, int mask, int flags); |
|
const AVOption *av_set_string(void *obj, const char *name, const char *val); |
|
const AVOption *av_set_double(void *obj, const char *name, double n); |
|
const AVOption *av_set_q(void *obj, const char *name, AVRational n); |
|
const AVOption *av_set_int(void *obj, const char *name, int64_t n); |
|
double av_get_double(void *obj, const char *name, const AVOption **o_out); |
|
AVRational av_get_q(void *obj, const char *name, const AVOption **o_out); |
|
int64_t av_get_int(void *obj, const char *name, const AVOption **o_out); |
|
const char *av_get_string(void *obj, const char *name, const AVOption **o_out, char *buf, int buf_len); |
|
const AVOption *av_next_option(void *obj, const AVOption *last); |
|
int av_opt_show(void *obj, void *av_log_obj); |
|
void av_opt_set_defaults(void *s); |
|
void av_opt_set_defaults2(void *s, int mask, int flags); |
|
|
|
#endif /* FFMPEG_OPT_H */
|
|
|