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/**
*
* Copyright 2003-2006 Jive Software.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smackx.jingleold.mediaimpl.jspeex;
import java.io.IOException;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.security.GeneralSecurityException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.media.NoProcessorException;
import javax.media.format.UnsupportedFormatException;
import javax.media.rtp.rtcp.SenderReport;
import javax.media.rtp.rtcp.SourceDescription;
import org.jivesoftware.smackx.jingleold.JingleSession;
import org.jivesoftware.smackx.jingleold.media.JingleMediaSession;
import org.jivesoftware.smackx.jingleold.media.PayloadType;
import org.jivesoftware.smackx.jingleold.nat.TransportCandidate;
import mil.jfcom.cie.media.session.MediaSession;
import mil.jfcom.cie.media.session.MediaSessionListener;
import mil.jfcom.cie.media.session.StreamPlayer;
import mil.jfcom.cie.media.srtp.packetizer.SpeexFormat;
/**
* This Class implements a complete JingleMediaSession.
* It should be used to transmit and receive audio captured from the Mic.
* This Class should be automatically controlled by JingleSession.
* But you could also use in any VOIP application.
* For better NAT Traversal support this implementation don't support only receive or only transmit.
* To receive you MUST transmit. So the only implemented and functionally methods are startTransmit() and stopTransmit()
*
* @author Thiago Camargo
*/
public class AudioMediaSession extends JingleMediaSession implements MediaSessionListener {
private static final Logger LOGGER = Logger.getLogger(AudioMediaSession.class.getName());
private MediaSession mediaSession;
/**
* Create a Session using Speex Codec.
*
* @param localhost localHost
* @param localPort localPort
* @param remoteHost remoteHost
* @param remotePort remotePort
* @param eventHandler eventHandler
* @param quality quality
* @param secure secure
* @param micOn micOn
* @return MediaSession TODO javadoc me please
* @throws NoProcessorException if there is no media processor.
* @throws UnsupportedFormatException if the format is not supported.
* @throws IOException if an I/O error occurred.
* @throws GeneralSecurityException if there was a general security exception.
*/
public static MediaSession createSession(String localhost, int localPort, String remoteHost, int remotePort, MediaSessionListener eventHandler, int quality, boolean secure, boolean micOn) throws NoProcessorException, UnsupportedFormatException, IOException, GeneralSecurityException {
SpeexFormat.setFramesPerPacket(1);
/**
* The master key. Hardcoded for now.
*/
byte[] masterKey = new byte[] {(byte) 0xE1, (byte) 0xF9, 0x7A, 0x0D, 0x3E, 0x01, (byte) 0x8B, (byte) 0xE0, (byte) 0xD6, 0x4F, (byte) 0xA3, 0x2C, 0x06, (byte) 0xDE, 0x41, 0x39};
/**
* The master salt. Hardcoded for now.
*/
byte[] masterSalt = new byte[] {0x0E, (byte) 0xC6, 0x75, (byte) 0xAD, 0x49, (byte) 0x8A, (byte) 0xFE, (byte) 0xEB, (byte) 0xB6, (byte) 0x96, 0x0B, 0x3A, (byte) 0xAB, (byte) 0xE6};
DatagramSocket[] localPorts = MediaSession.getLocalPorts(InetAddress.getByName(localhost), localPort);
MediaSession session = MediaSession.createInstance(remoteHost, remotePort, localPorts, quality, secure, masterKey, masterSalt);
session.setListener(eventHandler);
session.setSourceDescription(new SourceDescription[] {new SourceDescription(SourceDescription.SOURCE_DESC_NAME, "Superman", 1, false), new SourceDescription(SourceDescription.SOURCE_DESC_EMAIL, "[email protected]", 1, false), new SourceDescription(SourceDescription.SOURCE_DESC_LOC, InetAddress.getByName(localhost) + " Port " + session.getLocalDataPort(), 1, false), new SourceDescription(SourceDescription.SOURCE_DESC_TOOL, "JFCOM CDCIE Audio Chat", 1, false)});
return session;
}
/**
* Creates a org.jivesoftware.jingleaudio.jspeex.AudioMediaSession with defined payload type, remote and local candidates.
*
* @param payloadType Payload of the jmf
* @param remote the remote information. The candidate that the jmf will be sent to.
* @param local the local information. The candidate that will receive the jmf
* @param locator media locator
* @param jingleSession the jingle session.
*/
public AudioMediaSession(final PayloadType payloadType, final TransportCandidate remote,
final TransportCandidate local, String locator, JingleSession jingleSession) {
super(payloadType, remote, local, locator == null ? "dsound://" : locator, jingleSession);
initialize();
}
/**
* Initialize the Audio Channel to make it able to send and receive audio.
*/
@Override
public void initialize() {
String ip;
String localIp;
int localPort;
int remotePort;
if (this.getLocal().getSymmetric() != null) {
ip = this.getLocal().getIp();
localIp = this.getLocal().getLocalIp();
localPort = getFreePort();
remotePort = this.getLocal().getSymmetric().getPort();
LOGGER.fine(this.getLocal().getConnection() + " " + ip + ": " + localPort + "->" + remotePort);
}
else {
ip = this.getRemote().getIp();
localIp = this.getLocal().getLocalIp();
localPort = this.getLocal().getPort();
remotePort = this.getRemote().getPort();
}
try {
mediaSession = createSession(localIp, localPort, ip, remotePort, this, 2, false, true);
}
catch (NoProcessorException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
catch (UnsupportedFormatException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
catch (IOException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
catch (GeneralSecurityException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
}
/**
* Starts transmission and for NAT Traversal reasons start receiving also.
*
* @deprecated use {@link #startTransmit()} instead.
*/
@Deprecated
public void startTrasmit() {
startTransmit();
}
/**
* Starts transmission and for NAT Traversal reasons start receiving also.
*/
@Override
public void startTransmit() {
try {
LOGGER.fine("start");
mediaSession.start(true);
this.mediaReceived("");
}
catch (IOException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
}
/**
* Set transmit activity. If the active is true, the instance should transmit.
* If it is set to false, the instance should pause transmit.
*
* @param active active state
* @deprecated use {@link #setTransmit(boolean)} instead.
*/
@Deprecated
public void setTrasmit(boolean active) {
setTransmit(active);
}
/**
* Set transmit activity. If the active is true, the instance should transmit.
* If it is set to false, the instance should pause transmit.
*
* @param active active state
*/
@Override
public void setTransmit(boolean active) {
// Do nothing
}
/**
* For NAT Reasons this method does nothing. Use startTransmit() to start transmit and receive jmf
*/
@Override
public void startReceive() {
// Do nothing
}
/**
* Stops transmission and for NAT Traversal reasons stop receiving also.
*
* @deprecated use {@link #stopTransmit()} instead.
*/
@Deprecated
public void stopTrasmit() {
stopTransmit();
}
/**
* Stops transmission and for NAT Traversal reasons stop receiving also.
*/
@Override
public void stopTransmit() {
if (mediaSession != null)
mediaSession.close();
}
/**
* For NAT Reasons this method does nothing. Use startTransmit() to start transmit and receive jmf
*/
@Override
public void stopReceive() {
// Do nothing
}
@Override
public void newStreamIdentified(StreamPlayer streamPlayer) {
}
@Override
public void senderReportReceived(SenderReport report) {
}
@Override
public void streamClosed(StreamPlayer stream, boolean timeout) {
}
/**
* Obtain a free port we can use.
*
* @return A free port number.
*/
protected int getFreePort() {
ServerSocket ss;
int freePort = 0;
for (int i = 0; i < 10; i++) {
freePort = (int) (10000 + Math.round(Math.random() * 10000));
freePort = freePort % 2 == 0 ? freePort : freePort + 1;
try {
ss = new ServerSocket(freePort);
freePort = ss.getLocalPort();
ss.close();
return freePort;
}
catch (IOException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
}
try {
ss = new ServerSocket(0);
freePort = ss.getLocalPort();
ss.close();
}
catch (IOException e) {
LOGGER.log(Level.WARNING, "exception", e);
}
return freePort;
}
}
