org.qtunes.speaker.spi.airport
Class SpeakerImpl

java.lang.Object
  org.qtunes.speaker.spi.airport.SpeakerImpl

All Implemented Interfaces:

Service, Speaker

public class SpeakerImpl
extends java.lang.Object
implements Speaker

Constructor Summary

SpeakerImpl()

Method Summary

void	close() Close the speaker, immediately stopping it and discarding any data.
void	drain() Block until the data already written to the speaker completes If it fails, set the error.
void	flush() Immediately stop the speaker and discard any cached data written to it If it fails, set the error.
int	getBufferSize() Return the size of the speaker buffer in bytes.
ServiceContext	getContext() Return the ServiceContext that was passed into Service.startService(org.qtunes.core.ServiceContext)
int	getDelay() Return the number of ms delay for this speaker, between a packet being written and it being heard
java.lang.String	getDisplayName() Return a nice name for the Speaker for display to the user
java.lang.Exception	getError() If this speaker has failed for some reason, return the Exception.
Player	getPlayer() Get the Player currently assigned to this speaker
int	getUniqueId() Return a unique ID for the speaker
int	getVolumeAdjustment() Get the volume adjustment that applies to this speaker (+ve or -ve, 0 for no adjustment
boolean	hasGain() Returns true if this speaker can have its gain adjusted
boolean	isOpen() True after open has been called, false after close has been called
void	open(float sampleRate, int sampleSizeInBits, int channels, boolean signed, boolean bigEndian) Open the Speaker and start it.
java.util.Map<java.lang.String,java.lang.Object>	reportState() Return a Map describing the state of this Service, for serialization back to any client that needs to know (eg webplayer) - so values should be serializable objects, eg Lists, Maps or simple objects.
void	setGain(float gain) Set the gain of this speaker.
void	setPlayer(Player player) Set the player for the speaker.
void	setVolumeAdjustment(int volumeadjust) Set the volume adjustment that applies to this speaker, which should be be added to the gain for this speaker.
void	startService(ServiceContext context) Start the Service
void	stopService(ServiceContext context) Stop the Service
void	write(byte[] buf, int off, int len) Write data to the speaker.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SpeakerImpl

public SpeakerImpl()

Method Detail

getDisplayName

public java.lang.String getDisplayName()

Description copied from interface: Speaker

Return a nice name for the Speaker for display to the user

Specified by:

getDisplayName in interface Speaker

getError

public java.lang.Exception getError()

Description copied from interface: Speaker

If this speaker has failed for some reason, return the Exception. Otherwise return null.

Specified by:

getError in interface Speaker

getPlayer

public Player getPlayer()

Description copied from interface: Speaker

Get the Player currently assigned to this speaker

Specified by:

getPlayer in interface Speaker

setPlayer

public void setPlayer(Player player)

Description copied from interface: Speaker

Set the player for the speaker. This method should call Player.removeSpeaker(org.qtunes.speaker.Speaker) on the old player and Player.addSpeaker(org.qtunes.speaker.Speaker) on the new one, and anyone moving speakers between players should call this method rather than those methods directly.

Specified by:

setPlayer in interface Speaker

getUniqueId

public int getUniqueId()

Description copied from interface: Speaker

Return a unique ID for the speaker

Specified by:

getUniqueId in interface Speaker

getDelay

public int getDelay()

Description copied from interface: Speaker

Return the number of ms delay for this speaker, between a packet being written and it being heard

Specified by:

getDelay in interface Speaker

getBufferSize

public int getBufferSize()

Description copied from interface: Speaker

Return the size of the speaker buffer in bytes.

Specified by:

getBufferSize in interface Speaker

write

public void write(byte[] buf,
                  int off,
                  int len)

Description copied from interface: Speaker

Write data to the speaker. If it fails, set the error

Specified by:

write in interface Speaker

flush

public void flush()

Description copied from interface: Speaker

Immediately stop the speaker and discard any cached data written to it If it fails, set the error.

Specified by:

flush in interface Speaker

drain

public void drain()

Description copied from interface: Speaker

Block until the data already written to the speaker completes If it fails, set the error.

Specified by:

drain in interface Speaker

isOpen

public boolean isOpen()

Description copied from interface: Speaker

True after open has been called, false after close has been called

Specified by:

isOpen in interface Speaker

close

public void close()

Description copied from interface: Speaker

Close the speaker, immediately stopping it and discarding any data. Does not throw exception or fail.

Specified by:

close in interface Speaker

open

public void open(float sampleRate,
                 int sampleSizeInBits,
                 int channels,
                 boolean signed,
                 boolean bigEndian)

Description copied from interface: Speaker

Open the Speaker and start it. Reset any error that may have been set.

Specified by:

open in interface Speaker

setGain

public void setGain(float gain)

Description copied from interface: Speaker

Set the gain of this speaker. A value of NaN means "no audio". If this method fails, set the Error.

Specified by:

setGain in interface Speaker

setVolumeAdjustment

public void setVolumeAdjustment(int volumeadjust)

Description copied from interface: Speaker

Set the volume adjustment that applies to this speaker, which should be be added to the gain for this speaker.

Specified by:

setVolumeAdjustment in interface Speaker

getVolumeAdjustment

public int getVolumeAdjustment()

Description copied from interface: Speaker

Get the volume adjustment that applies to this speaker (+ve or -ve, 0 for no adjustment

Specified by:

getVolumeAdjustment in interface Speaker

hasGain

public boolean hasGain()

Description copied from interface: Speaker

Returns true if this speaker can have its gain adjusted

Specified by:

hasGain in interface Speaker

getContext

public ServiceContext getContext()

Description copied from interface: Service

Return the ServiceContext that was passed into Service.startService(org.qtunes.core.ServiceContext)

Specified by:

getContext in interface Service

startService

public void startService(ServiceContext context)

Description copied from interface: Service

Start the Service

Specified by:

startService in interface Service

Parameters:

context - the ServiceContext for this Service

stopService

public void stopService(ServiceContext context)

Description copied from interface: Service

Stop the Service

Specified by:

stopService in interface Service

Parameters:

context - the ServiceContext for this Service (same as was passed into start)

reportState

public java.util.Map<java.lang.String,java.lang.Object> reportState()

Description copied from interface: Service

Return a Map describing the state of this Service, for serialization back to any client that needs to know (eg webplayer) - so values should be serializable objects, eg Lists, Maps or simple objects. If no useful state, return null.

Specified by:

reportState in interface Service