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/*
* Jitsi, the OpenSource Java VoIP and Instant Messaging client.
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package net.java.sip.communicator.service.protocol.event;
import java.util.*;
/**
* <tt>SoundLevelChangeEvent</tt>s are triggered whenever a change occurs in the
* sound level of the audio stream coming from a certain <tt>CallPeer</tt>.
* <p>
* In the case of a <tt>CallPeer</tt>, which is also a conference focus and
* is participating in the conference as a <tt>ConferenceMember</tt> the level
* would be the aggregated level of all <tt>ConferenceMember</tt>s levels
* including the one corresponding to the peer itself.
* <p>
* In the case of a <tt>CallPeer</tt>, which is also a conference focus, but
* is NOT participating in the conference as a <tt>ConferenceMember</tt>
* (server) the level would be the aggregated level of all attached
* <tt>ConferenceMember</tt>s.
*
* @author Yana Stamcheva
*/
public class SoundLevelChangeEvent
extends EventObject
{
/**
* Serial version UID.
*/
private static final long serialVersionUID = 0L;
/**
* The maximum level that can be reported for a participant. Level values
* should be distributed among <tt>MAX_LEVEL</tt> and {@link #MIN_LEVEL} in
* a way that would appear uniform to users.
* <p>
* <b>Warning</b>: The value should be equal to
* <tt>net.java.sip.communicator.service.neomedia.event.SimpleAudioLevelListener#MAX_VALUE</tt>
* because we do not currently perform a conversion from the
* <tt>SimpleAudioLevelListener</tt> range to the
* <tt>SoundLevelChangeEvent</tt> range when we fire the event.
* </p>
*/
public static final int MAX_LEVEL = 127;
/**
* The maximum (zero) level that can be reported for a participant. Level
* values should be distributed among {@link #MAX_LEVEL} and
* <tt>MIN_LEVEL</tt> in a way that would appear uniform to users.
* <p>
* <b>Warning</b>: The value should be equal to
* <tt>net.java.sip.communicator.service.neomedia.event.SimpleAudioLevelListener#MIN_VALUE</tt>
* because we do not currently perform a conversion from the
* <tt>SimpleAudioLevelListener</tt> range to the
* <tt>SoundLevelChangeEvent</tt> range when we fire the event.
* </p>
*/
public static final int MIN_LEVEL = 0;
/**
* The audio stream level, for the change of which this event is about.
*/
private final int level;
/**
* Creates an <tt>StreamSoundLevelEvent</tt> for the given <tt>callPeer</tt>
* by indicating the current sound level of the audio stream.
*
* @param source the source from which the change is received
* @param level the current sound level of the audio stream
*/
public SoundLevelChangeEvent(Object source,
int level)
{
super(source);
this.level = level;
}
/**
* Returns the current sound level of the audio stream.
*
* @return the current sound level of the audio stream
*/
public int getLevel()
{
return level;
}
}
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