Takes captured audio and sends it to the remote peer via UDP channel. More...

Inheritance diagram for protocol.VoicePDUSender:

Collaboration diagram for protocol.VoicePDUSender:

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Public Member Functions
void	send () throws IOException
	Sends audio as payload encapsulated in VoicePDU.
Package Functions
	VoicePDUSender (AudioInterface audioInterface, CallContext call)
	Constructor for the VoicePDUSender object.
Private Attributes
AudioInterface	audio
CallContext	call
int	voicePduSubclass
byte[]	audioBuffer
long	callStartTimestamp
long	nextDueTimestamp
int	timestamp

Detailed Description

Takes captured audio and sends it to the remote peer via UDP channel.

Author:: Mikica B Kocic

Definition at line 15 of file VoicePDUSender.java.

Constructor & Destructor Documentation

protocol.VoicePDUSender.VoicePDUSender	(	AudioInterface	audioInterface,
		CallContext	call
	)		`[package]`

Constructor for the VoicePDUSender object.

Parameters:

audioInterface	The audio interface
call	The call object

Definition at line 32 of file VoicePDUSender.java.

References protocol.VoicePDUSender.audio, protocol.VoicePDUSender.audioBuffer, protocol.VoicePDUSender.call, protocol.VoicePDUSender.callStartTimestamp, audio.AudioInterface.getSampleSize(), protocol.CallContext.getTimestamp(), audio.AudioInterface.getVoicePduSubclass(), protocol.VoicePDUSender.nextDueTimestamp, and protocol.VoicePDUSender.voicePduSubclass.

    {
        this.audio = audioInterface;
        this.call = call;
        
        this.voicePduSubclass = audioInterface.getVoicePduSubclass ();
        this.audioBuffer = new byte[ this.audio.getSampleSize () ];

        this.callStartTimestamp = this.call.getTimestamp ();
        this.nextDueTimestamp = this.callStartTimestamp;
    }

Member Function Documentation

void protocol.VoicePDUSender.send ( ) throws IOException [virtual]

Sends audio as payload encapsulated in VoicePDU.

Implements audio.AudioInterface.Packetizer.

Definition at line 47 of file VoicePDUSender.java.

References protocol.VoicePDUSender.audio, protocol.VoicePDUSender.audioBuffer, protocol.VoicePDUSender.call, protocol.ProtocolDataUnit.dump(), protocol.VoicePDUSender.nextDueTimestamp, audio.AudioInterface.readWithTimestamp(), protocol.ProtocolDataUnit.sendPayload(), protocol.ProtocolDataUnit.setTimestamp(), protocol.VoicePDUSender.timestamp, and protocol.VoicePDUSender.voicePduSubclass.

    {
        this.audio.readWithTimestamp( this.audioBuffer );
        this.timestamp = (int) this.nextDueTimestamp;
        
        VoicePDU vf = new VoicePDU( this.call, this.voicePduSubclass );
        vf.setTimestamp( this.timestamp );
        vf.sendPayload( this.audioBuffer );
        
        vf.dump( "Outbound Voice" );
        Log.audio( "Sent voice PDU" );
        
        /* Now work out how long to wait...
         */
        this.nextDueTimestamp += 20;
    }