ISynchronizer Interface Reference

This class enables global synchronization of several audio applications if supported. More...

#include <ISynchronizer.h>

Inheritance diagram for ISynchronizer:

Public Types
typedef void(*	syncFunction) (void *, int, float)
	The syncFunction is called when a synchronization event happens.

Public Member Functions
virtual	~ISynchronizer ()
	Destroys the synchronizer.
virtual void	seek (std::shared_ptr< IHandle > handle, double time)=0
	Sets the playback position of a handle and the synchronizer to a specific time.
virtual double	getPosition (std::shared_ptr< IHandle > handle)=0
	Retrieves the position of the synchronizer.
virtual void	play ()=0
	Starts the synchronizer playback.
virtual void	stop ()=0
	Stops the synchronizer playback.
virtual void	setSyncCallback (syncFunction function, void *data)=0
	Sets the callback function that is called when a synchronization event happens.
virtual int	isPlaying ()=0
	Retrieves whether the synchronizer is playing back.

Detailed Description

This class enables global synchronization of several audio applications if supported.

JACK for example supports synchronization through JACK Transport.

Member Typedef Documentation

syncFunction

typedef void(* ISynchronizer::syncFunction) (void *, int, float)

The syncFunction is called when a synchronization event happens.

The function awaits three parameters. The first one is a user defined pointer, the second informs about whether playback is on and the third is the current playback time in seconds.

Member Function Documentation

getPosition()

virtual double ISynchronizer::getPosition ( std::shared_ptr< IHandle > handle )

pure virtual

Retrieves the position of the synchronizer.

Parameters

handle

The handle which is synchronized.

Returns

The position in seconds.

Implemented in DefaultSynchronizer, CoreAudioSynchronizer, and JackSynchronizer.

isPlaying()

virtual int ISynchronizer::isPlaying ( )

pure virtual

Retrieves whether the synchronizer is playing back.

Returns

Whether the synchronizer plays back.

Implemented in DefaultSynchronizer, CoreAudioSynchronizer, and JackSynchronizer.

play()

virtual void ISynchronizer::play ( )

pure virtual

Starts the synchronizer playback.

Implemented in DefaultSynchronizer, CoreAudioSynchronizer, and JackSynchronizer.

seek()

virtual void ISynchronizer::seek ( std::shared_ptr< IHandle > handle, double time )

pure virtual

Sets the playback position of a handle and the synchronizer to a specific time.

Parameters

handle	The handle that should be synchronized/seeked.
time	The absolute time to synchronize to.

Implemented in DefaultSynchronizer, CoreAudioSynchronizer, and JackSynchronizer.

setSyncCallback()

virtual void ISynchronizer::setSyncCallback ( syncFunction function, void * data )

pure virtual

Sets the callback function that is called when a synchronization event happens.

Parameters

function	The function to be called.
data	User data to be passed to the callback.

Implemented in DefaultSynchronizer, CoreAudioSynchronizer, and JackSynchronizer.

stop()

virtual void ISynchronizer::stop ( )

pure virtual

Stops the synchronizer playback.

Implemented in DefaultSynchronizer, CoreAudioSynchronizer, and JackSynchronizer.

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The documentation for this interface was generated from the following file:

• devices/ISynchronizer.h