org.jitsi.impl.neomedia.transform

Class ControlTransformInputStream

java.lang.Object

org.jitsi.impl.neomedia.RTPConnectorInputStream<T>

org.jitsi.impl.neomedia.transform.TransformInputStream<DatagramSocket>

org.jitsi.impl.neomedia.RTPConnectorUDPInputStream

org.jitsi.impl.neomedia.transform.ControlTransformInputStream

All Implemented Interfaces:

Closeable, AutoCloseable, javax.media.Controls, javax.media.protocol.PushSourceStream, javax.media.protocol.SourceStream

public class ControlTransformInputStream
extends RTPConnectorUDPInputStream

Implement control channel (RTCP) for TransformInputStream which notify listeners when RTCP feedback messages are received.

Author:

Bing SU (nova.su@gmail.com), Lyubomir Marinov, Sebastien Vincent

Field Summary

Fields inherited from class org.jitsi.impl.neomedia.RTPConnectorInputStream

PACKET_RECEIVE_BUFFER_LENGTH, SO_RCVBUF_PNAME, socket

Fields inherited from interface javax.media.protocol.SourceStream

LENGTH_UNKNOWN

Constructor Summary

Constructors

Constructor and Description
ControlTransformInputStream(DatagramSocket socket) Initializes a new ControlTransformInputStream which is to receive packet data from a specific UDP socket.

Method Summary

Modifier and Type	Method and Description
void	addRTCPFeedbackMessageListener(RTCPFeedbackMessageListener listener) Adds an RTCPFeedbackMessageListener.
protected int	read(javax.media.Buffer buffer, byte[] data, int offset, int length) Copies the content of the most recently received packet into data.
void	removeRTCPFeedbackMessageListener(RTCPFeedbackMessageListener listener) Removes an RTCPFeedbackMessageListener.

Methods inherited from class org.jitsi.impl.neomedia.RTPConnectorUDPInputStream

doLogPacket, receive, setReceiveBufferSize

Methods inherited from class org.jitsi.impl.neomedia.transform.TransformInputStream

createRawPacket, getTransformer, setTransformer

Methods inherited from class org.jitsi.impl.neomedia.RTPConnectorInputStream

addDatagramPacketFilter, close, endOfStream, getContentDescriptor, getContentLength, getControl, getControls, getDatagramPacketFilters, getLastActivityTime, getMinimumTransferSize, getNumberOfReceivedBytes, getPacketLoggingService, read, setEnabled, setPriority, setThreadPriority, setTransferHandler

Methods inherited from class java.lang.Object

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

Constructor Detail

ControlTransformInputStream

public ControlTransformInputStream(DatagramSocket socket)

Initializes a new ControlTransformInputStream 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

addRTCPFeedbackMessageListener

public void addRTCPFeedbackMessageListener(RTCPFeedbackMessageListener listener)

Adds an RTCPFeedbackMessageListener.

Parameters:

listener - the RTCPFeedbackMessageListener to add

removeRTCPFeedbackMessageListener

public void removeRTCPFeedbackMessageListener(RTCPFeedbackMessageListener listener)

Removes an RTCPFeedbackMessageListener.

Parameters:

listener - the RTCPFeedbackMessageListener to remove

read

protected int read(javax.media.Buffer buffer,
                   byte[] data,
                   int offset,
                   int length)
            throws IOException

Copies the content of the most recently received packet into data.

Overrides:

read in class RTPConnectorInputStream<DatagramSocket>

Parameters:

buffer - an optional Buffer instance associated with the specified data, offset and length and provided to the method in case the implementation would like to provide additional Buffer properties such as flags

data - the byte[] that we'd like to copy the content of the packet to.

offset - the position where we are supposed to start writing in data.

length - the number of bytes available for writing in data.

Returns:

the number of bytes read

Throws:

IOException - if length is less than the size of the packet.