MHAIOalsa.cpp File Reference

Classes
class	alsa_base_t
class	alsa_dev_par_parser_t
	Parser variables corresponding to one alsa device. More...
class	alsa_t< T >
	Our representation of one alsa device. More...
class	io_alsa_t
	MHA IO interface class for ALSA IO. More...

Macros
#define	DBG(x)   fprintf(stderr,"%s:%d\n",__FILE__,__LINE__)
#define	ERR_SUCCESS   0
#define	ERR_IHANDLE   -1
#define	ERR_USER   -1000
#define	MAX_USER_ERR   0x500
#define	IOInit   MHA_STATIC_MHAIOalsa_IOInit
#define	IOPrepare   MHA_STATIC_MHAIOalsa_IOPrepare
#define	IOStart   MHA_STATIC_MHAIOalsa_IOStart
#define	IOStop   MHA_STATIC_MHAIOalsa_IOStop
#define	IORelease   MHA_STATIC_MHAIOalsa_IORelease
#define	IOSetVar   MHA_STATIC_MHAIOalsa_IOSetVar
#define	IOStrError   MHA_STATIC_MHAIOalsa_IOStrError
#define	IODestroy   MHA_STATIC_MHAIOalsa_IODestroy
#define	dummy_interface_test   MHA_STATIC_MHAIOalsa_dummy_interface_test

Functions
int	IOInit (int fragsize, float samplerate, IOProcessEvent_t proc_event, void *proc_handle, IOStartedEvent_t start_event, void *start_handle, IOStoppedEvent_t stop_event, void *stop_handle, void **handle)
	IO library initialization function, called by framework after loading this IO library into the MHA process. More...
int	IOPrepare (void *handle, int nch_in, int nch_out)
	IO library prepare function, called after the MHA prepared the processing plugins. More...
int	IOStart (void *handle)
int	IOStop (void *handle)
int	IORelease (void *handle)
int	IOSetVar (void *handle, const char *command, char *retval, unsigned int maxretlen)
const char *	IOStrError (void *, int err)
void	IODestroy (void *handle)

Variables
static char	user_err_msg [MAX_USER_ERR]

Macro Definition Documentation

DBG

#define DBG

(

x

)

fprintf(stderr,"%s:%d\n",__FILE__,__LINE__)

ERR_SUCCESS

#define ERR_SUCCESS   0

ERR_IHANDLE

#define ERR_IHANDLE   -1

ERR_USER

#define ERR_USER   -1000

MAX_USER_ERR

#define MAX_USER_ERR   0x500

IOInit

#define IOInit   MHA_STATIC_MHAIOalsa_IOInit

IOPrepare

#define IOPrepare   MHA_STATIC_MHAIOalsa_IOPrepare

IOStart

#define IOStart   MHA_STATIC_MHAIOalsa_IOStart

IOStop

#define IOStop   MHA_STATIC_MHAIOalsa_IOStop

IORelease

#define IORelease   MHA_STATIC_MHAIOalsa_IORelease

IOSetVar

#define IOSetVar   MHA_STATIC_MHAIOalsa_IOSetVar

IOStrError

#define IOStrError   MHA_STATIC_MHAIOalsa_IOStrError

IODestroy

#define IODestroy   MHA_STATIC_MHAIOalsa_IODestroy

dummy_interface_test

void dummy_interface_test

(

void

)

MHA_STATIC_MHAIOalsa_dummy_interface_test

Function Documentation

IOInit()

int IOInit	(	int	fragsize,
		float	samplerate,
		IOProcessEvent_t	proc_event,
		void *	proc_handle,
		IOStartedEvent_t	start_event,
		void *	start_handle,
		IOStoppedEvent_t	stop_event,
		void *	stop_handle,
		void **	handle
	)

IO library initialization function, called by framework after loading this IO library into the MHA process.

Gives plugin callback functions and callback handles to interact with the MHA framework.

Parameters

handle

output parameter. IO library returns pointer to void to the caller via this parameter. All other function calls from the MHA framework will use this handle.

IOPrepare()

int IOPrepare	(	void *	handle,
		int	nch_in,
		int	nch_out
	)

IO library prepare function, called after the MHA prepared the processing plugins.

IOStart()

int IOStart

(

void *

handle

)

IOStop()

int IOStop

(

void *

handle

)

IORelease()

int IORelease

(

void *

handle

)

IOSetVar()

int IOSetVar	(	void *	handle,
		const char *	command,
		char *	retval,
		unsigned int	maxretlen
	)

IOStrError()

const char* IOStrError	(	void *	,
		int	err
	)

IODestroy()

void IODestroy

(

void *

handle

)

Variable Documentation

user_err_msg

char user_err_msg[MAX_USER_ERR]

static