org.jitsi.impl.neomedia.device

Class PortAudioSystem

java.lang.Object

org.jitsi.utils.event.PropertyChangeNotifier

org.jitsi.impl.neomedia.device.DeviceSystem

org.jitsi.impl.neomedia.device.AudioSystem

org.jitsi.impl.neomedia.device.AudioSystem2

org.jitsi.impl.neomedia.device.PortAudioSystem

public class PortAudioSystem
extends AudioSystem2

Creates PortAudio capture devices by enumerating all host devices that have input channels.

Author:

Damian Minkov, Lyubomir Marinov

Nested Class Summary

Nested classes/interfaces inherited from class org.jitsi.impl.neomedia.device.AudioSystem

AudioSystem.DataFlow

Field Summary

Fields inherited from class org.jitsi.impl.neomedia.device.AudioSystem

FEATURE_AGC, FEATURE_DENOISE, FEATURE_ECHO_CANCELLATION, FEATURE_NOTIFY_AND_PLAYBACK_DEVICES, LOCATOR_PROTOCOL_AUDIORECORD, LOCATOR_PROTOCOL_AUDIOSILENCE, LOCATOR_PROTOCOL_JAVASOUND, LOCATOR_PROTOCOL_MACCOREAUDIO, LOCATOR_PROTOCOL_OPENSLES, LOCATOR_PROTOCOL_PORTAUDIO, LOCATOR_PROTOCOL_PULSEAUDIO, LOCATOR_PROTOCOL_WASAPI, PNAME_DENOISE, PNAME_ECHOCANCEL

Fields inherited from class org.jitsi.impl.neomedia.device.DeviceSystem

FEATURE_REINITIALIZE, LOCATOR_PROTOCOL_ANDROIDCAMERA, LOCATOR_PROTOCOL_CIVIL, LOCATOR_PROTOCOL_DIRECTSHOW, LOCATOR_PROTOCOL_IMGSTREAMING, LOCATOR_PROTOCOL_MEDIARECORDER, LOCATOR_PROTOCOL_QUICKTIME, LOCATOR_PROTOCOL_VIDEO4LINUX2, PROP_DEVICES

Method Summary

Modifier and Type	Method and Description
protected void	doInitialize() Invoked by DeviceSystem.initialize() to perform the very logic of the initialization of this DeviceSystem.
protected String	getRendererClassName() Gets the name of the class which implements the Renderer interface to render media on a playback or notification device associated with this DeviceSystem.
String	toString() Returns a human-readable representation of this DeviceSystem.
protected void	updateAvailableDeviceList()

Methods inherited from class org.jitsi.impl.neomedia.device.AudioSystem2

addUpdateAvailableDeviceListListener, bubbleUpUsbDevices, didOpenStream, matchDevicesByName, reinitialize, removeUpdateAvailableDeviceListListener, willOpenStream

Methods inherited from class org.jitsi.impl.neomedia.device.AudioSystem

createRenderer, createRenderer, getAudioInputStream, getAudioSystem, getAudioSystems, getDevice, getDevices, getFormat, getPropertyName, getSelectedDevice, isAutomaticGainControl, isDenoise, isEchoCancel, postInitialize, postInitializeSpecificDevices, preInitialize, setAutomaticGainControl, setCaptureDevices, setDenoise, setDevice, setEchoCancel, setPlaybackDevices

Methods inherited from class org.jitsi.impl.neomedia.device.DeviceSystem

filterDeviceListByLocatorProtocol, getDeviceSystems, getFeatures, getFormat, getLocatorProtocol, getMediaType, initialize, initializeDeviceSystems, initializeDeviceSystems

Methods inherited from class org.jitsi.utils.event.PropertyChangeNotifier

addPropertyChangeListener, firePropertyChange, getPropertyChangeSource, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Method Detail

doInitialize

protected void doInitialize()
                     throws Exception

Invoked by DeviceSystem.initialize() to perform the very logic of the initialization of this DeviceSystem. This instance has been prepared for initialization by an earlier call to DeviceSystem.preInitialize() and the initialization will be completed with a subsequent call to DeviceSystem.postInitialize().

Specified by:

doInitialize in class DeviceSystem

Throws:

Exception - if an error occurs during the initialization of this instance. The initialization of this instance will be completed with a subsequent call to postInitialize() regardless of any Exception thrown by doInitialize().

getRendererClassName

protected String getRendererClassName()

Gets the name of the class which implements the Renderer interface to render media on a playback or notification device associated with this DeviceSystem.

Overrides:

getRendererClassName in class DeviceSystem

Returns:

the name of the class which implements the Renderer interface to render media on a playback or notification device associated with this DeviceSystem or null if no Renderer instance is to be created by the DeviceSystem implementation or createRenderer(boolean) is overridden.

toString

public String toString()

Returns a human-readable representation of this DeviceSystem. The implementation of DeviceSystem returns the protocol of the MediaLocators of the CaptureDeviceInfos (to be) registered by this DeviceSystem. The implementation of PortAudioSystem always returns "PortAudio".

Overrides:

toString in class DeviceSystem

Returns:

a String which represents this DeviceSystem in a human-readable form

updateAvailableDeviceList

protected void updateAvailableDeviceList()

Specified by:

updateAvailableDeviceList in class AudioSystem2