mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-28 20:24:07 +00:00
140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
/*
|
|
*
|
|
* ao.h
|
|
*
|
|
* Original Copyright (C) Aaron Holtzman - May 1999
|
|
* Modifications Copyright (C) Stan Seibert - July 2000, July 2001
|
|
* More Modifications Copyright (C) Jack Moffitt - October 2000
|
|
*
|
|
* This file is part of libao, a cross-platform audio outputlibrary. See
|
|
* README for a history of this source code.
|
|
*
|
|
* libao is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* libao 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with GNU Make; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*
|
|
*/
|
|
#ifndef __AO_H__
|
|
#define __AO_H__
|
|
|
|
#ifdef __cplusplus
|
|
extern "C"
|
|
{
|
|
#endif /* __cplusplus */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include "os_types.h"
|
|
|
|
/* --- Constants ---*/
|
|
|
|
#define AO_TYPE_LIVE 1
|
|
#define AO_TYPE_FILE 2
|
|
|
|
|
|
#define AO_ENODRIVER 1
|
|
#define AO_ENOTFILE 2
|
|
#define AO_ENOTLIVE 3
|
|
#define AO_EBADOPTION 4
|
|
#define AO_EOPENDEVICE 5
|
|
#define AO_EOPENFILE 6
|
|
#define AO_EFILEEXISTS 7
|
|
#define AO_EBADFORMAT 8
|
|
|
|
#define AO_EFAIL 100
|
|
|
|
|
|
#define AO_FMT_LITTLE 1
|
|
#define AO_FMT_BIG 2
|
|
#define AO_FMT_NATIVE 4
|
|
|
|
/* --- Structures --- */
|
|
|
|
typedef struct ao_info {
|
|
int type; /* live output or file output? */
|
|
char *name; /* full name of driver */
|
|
char *short_name; /* short name of driver */
|
|
char *author; /* driver author */
|
|
char *comment; /* driver comment */
|
|
int preferred_byte_format;
|
|
int priority;
|
|
char **options;
|
|
int option_count;
|
|
} ao_info;
|
|
|
|
typedef struct ao_functions ao_functions;
|
|
typedef struct ao_device ao_device;
|
|
|
|
typedef struct ao_sample_format {
|
|
int bits; /* bits per sample */
|
|
int rate; /* samples per second (in a single channel) */
|
|
int channels; /* number of audio channels */
|
|
int byte_format; /* Byte ordering in sample, see constants below */
|
|
char *matrix; /* input channel location/ordering */
|
|
} ao_sample_format;
|
|
|
|
typedef struct ao_option {
|
|
char *key;
|
|
char *value;
|
|
struct ao_option *next;
|
|
} ao_option;
|
|
|
|
#if defined(AO_BUILDING_LIBAO)
|
|
#include "ao_private.h"
|
|
#endif
|
|
|
|
/* --- Functions --- */
|
|
|
|
/* library setup/teardown */
|
|
void ao_initialize(void);
|
|
void ao_shutdown(void);
|
|
|
|
/* device setup/playback/teardown */
|
|
int ao_append_global_option(const char *key,
|
|
const char *value);
|
|
int ao_append_option(ao_option **options,
|
|
const char *key,
|
|
const char *value);
|
|
void ao_free_options(ao_option *options);
|
|
ao_device* ao_open_live(int driver_id,
|
|
ao_sample_format *format,
|
|
ao_option *option);
|
|
ao_device* ao_open_file(int driver_id,
|
|
const char *filename,
|
|
int overwrite,
|
|
ao_sample_format *format,
|
|
ao_option *option);
|
|
|
|
int ao_play(ao_device *device,
|
|
char *output_samples,
|
|
uint_32 num_bytes);
|
|
int ao_close(ao_device *device);
|
|
|
|
/* driver information */
|
|
int ao_driver_id(const char *short_name);
|
|
int ao_default_driver_id(void);
|
|
ao_info *ao_driver_info(int driver_id);
|
|
ao_info **ao_driver_info_list(int *driver_count);
|
|
const char *ao_file_extension(int driver_id);
|
|
|
|
/* miscellaneous */
|
|
int ao_is_big_endian(void);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
#endif /* __AO_H__ */
|