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

java.lang.Object
  net.java.sip.communicator.impl.neomedia.RTPConnectorOutputStream
      net.java.sip.communicator.impl.neomedia.RTPConnectorUDPOutputStream
          net.java.sip.communicator.impl.neomedia.transform.TransformUDPOutputStream

All Implemented Interfaces:

javax.media.rtp.OutputDataStream

public class TransformUDPOutputStream
extends RTPConnectorUDPOutputStream

Extends RTPConnectorOutputStream with transform logic for UDP. In this implementation, UDP socket is used to send the data out. When a normal RTP/RTCP packet is passed down from RTPManager, we first transform the packet using user define PacketTransformer and then send it out through network to all the stream targets.

Author:

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

Field Summary

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

MAX_PACKETS_PER_MILLIS_POLICY_PACKET_QUEUE_CAPACITY, targets

Constructor Summary

TransformUDPOutputStream(DatagramSocket socket)
Initializes a new TransformOutputStream which is to send packet data out through a specific UDP socket.

Method Summary

protected RawPacket	createRawPacket(byte[] buffer, int offset, int length) Creates a new RawPacket from a specific byte[] buffer in order to have this instance send its packet data through its RTPConnectorOutputStream.write(byte[], int, int) method.
PacketTransformer	getTransformer() Gets the PacketTransformer which is used to transform packets.
void	setTransformer(PacketTransformer transformer) Sets the PacketTransformer which is to be used to transform packets.

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

doLogPacket, isSocketValid, sendToTarget

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

addTarget, close, removeTarget, removeTargets, setMaxPacketsPerMillis, setPriority, write

Methods inherited from class java.lang.Object

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

Constructor Detail

TransformUDPOutputStream

public TransformUDPOutputStream(DatagramSocket socket)

Initializes a new TransformOutputStream which is to send packet data out through a specific UDP socket.

Parameters:

socket - the UDP socket used to send packet data out

Method Detail

createRawPacket

protected RawPacket createRawPacket(byte[] buffer,
                                    int offset,
                                    int length)

Creates a new RawPacket from a specific byte[] buffer in order to have this instance send its packet data through its RTPConnectorOutputStream.write(byte[], int, int) method. Transforms the packet to be sent.

Overrides:

createRawPacket in class RTPConnectorOutputStream

Parameters:

buffer - the packet data to be sent to the targets of this instance

offset - the offset of the packet data in buffer

length - the length of the packet data in buffer

Returns:

a new RawPacket containing the packet data of the specified byte[] buffer or possibly its modification; null to ignore the packet data of the specified byte[] buffer and not send it to the targets of this instance through its RTPConnectorOutputStream.write(byte[], int, int) method

See Also:

RTPConnectorOutputStream.createRawPacket(byte[], int, int)

getTransformer

public PacketTransformer getTransformer()

Gets the PacketTransformer which is used to transform packets.

Returns:

the PacketTransformer which is used to transform packets

setTransformer

public void setTransformer(PacketTransformer transformer)

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

Parameters:

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