net.java.sip.communicator.impl.neomedia.transform
Class TransformUDPInputStream

java.lang.Object
  net.java.sip.communicator.impl.neomedia.RTPConnectorInputStream
      net.java.sip.communicator.impl.neomedia.RTPConnectorUDPInputStream
          net.java.sip.communicator.impl.neomedia.transform.TransformUDPInputStream

All Implemented Interfaces:

Runnable, javax.media.Controls, javax.media.protocol.PushSourceStream, javax.media.protocol.SourceStream

Direct Known Subclasses:

ControlTransformInputStream

public class TransformUDPInputStream
extends RTPConnectorUDPInputStream

Extends RTPConnectorInputStream with transform logic for UDP. In this implementation, we use UDP sockets to receive RTP/RTCP. We listen on the address / port specified by local session address. When one packet is received, it is first reverse transformed through PacketTransformer defined by user. And then returned as normal RTP/RTCP packets to RTPManager.

Author:

Bing SU (nova.su@gmail.com), Lubomir Marinov

Field Summary

Fields inherited from class net.java.sip.communicator.impl.neomedia.RTPConnectorInputStream

closed, ioError, pkt, receiverThread

Fields inherited from interface javax.media.protocol.SourceStream

LENGTH_UNKNOWN

Constructor Summary

TransformUDPInputStream(DatagramSocket socket)
Initializes a new TransformInputStream which is to receive packet data from a specific UDP socket.

Method Summary

protected RawPacket	createRawPacket(DatagramPacket datagramPacket) Creates a new RawPacket from a specific DatagramPacket in order to have this instance receive its packet data through its RTPConnectorInputStream.read(byte[], int, int) method.
PacketTransformer	getTransformer() Gets the PacketTransformer which is used to reverse-transform packets.
void	setTransformer(PacketTransformer transformer) Sets the PacketTransformer which is to be used to reverse-transform packets.

Methods inherited from class net.java.sip.communicator.impl.neomedia.RTPConnectorUDPInputStream

close, doLogPacket, receivePacket

Methods inherited from class net.java.sip.communicator.impl.neomedia.RTPConnectorInputStream

addDatagramPacketFilter, endOfStream, getContentDescriptor, getContentLength, getControl, getControls, getDatagramPacketFilters, getMinimumTransferSize, read, run, setPriority, setTransferHandler

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformUDPInputStream

public TransformUDPInputStream(DatagramSocket socket)

Initializes a new TransformInputStream which is to receive packet data from a specific UDP socket.

Parameters:

socket - the UDP socket the new instance is to receive data from

Method Detail

createRawPacket

protected RawPacket createRawPacket(DatagramPacket datagramPacket)

Creates a new RawPacket from a specific DatagramPacket in order to have this instance receive its packet data through its RTPConnectorInputStream.read(byte[], int, int) method. Reverse-transforms the received packet.

Overrides:

createRawPacket in class RTPConnectorInputStream

Parameters:

datagramPacket - the DatagramPacket containing the packet data

Returns:

a new RawPacket containing the packet data of the specified DatagramPacket or possibly its modification; null to ignore the packet data of the specified DatagramPacket and not make it available to this instance through its RTPConnectorInputStream.read(byte[], int, int) method

See Also:

RTPConnectorInputStream.createRawPacket(DatagramPacket)

getTransformer

public PacketTransformer getTransformer()

Gets the PacketTransformer which is used to reverse-transform packets.

Returns:

the PacketTransformer which is used to reverse-transform packets

setTransformer

public void setTransformer(PacketTransformer transformer)

Sets the PacketTransformer which is to be used to reverse-transform packets.

Parameters:

transformer - the PacketTransformer which is to be used to reverse-transform packets