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typedef struct ao_info_s
{
/* driver name ("Matrox Millennium G200/G400" */
const char *name;
/* short name (for config strings) ("mga") */
const char *short_name;
/* author ("Aaron Holtzman <aholtzma@ess.engr.uvic.ca>") */
const char *author;
/* any additional comments */
const char *comment;
} ao_info_t;
/* interface towards mplayer and */
typedef struct ao_functions_s
{
ao_info_t *info;
int (*control)(int cmd,int arg);
int (*init)(int rate,int channels,int format,int flags);
void (*uninit)();
void (*reset)();
int (*get_space)();
int (*play)(void* data,int len,int flags);
float (*get_delay)();
void (*pause)();
void (*resume)();
} ao_functions_t;
/* global data used by mplayer and plugins */
typedef struct ao_data_s
{
int samplerate;
int channels;
int format;
int bps;
int outburst;
int buffersize;
int pts;
} ao_data_t;
extern char *ao_subdevice;
extern ao_data_t ao_data;
// prototypes
extern char *audio_out_format_name(int format);
// NULL terminated array of all drivers
extern ao_functions_t* audio_out_drivers[];
#define CONTROL_OK 1
#define CONTROL_TRUE 1
#define CONTROL_FALSE 0
#define CONTROL_UNKNOWN -1
#define CONTROL_ERROR -2
#define CONTROL_NA -3
#define AOCONTROL_SET_DEVICE 1
#define AOCONTROL_GET_DEVICE 2
#define AOCONTROL_QUERY_FORMAT 3 /* test for availabilty of a format */
#define AOCONTROL_GET_VOLUME 4
#define AOCONTROL_SET_VOLUME 5
#define AOCONTROL_SET_PLUGIN_DRIVER 6
#define AOCONTROL_SET_PLUGIN_LIST 7
typedef struct ao_control_vol_s {
float left;
float right;
} ao_control_vol_t;
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