Corrupted audio in video served up to QT 7.6.6 via SMIL files
We've been providing access to recorded QT video materials via SMIL playlists to QuickTime player embed-ed into web pages for some time and until the recent 7.6.6 update had no trouble with playback.
Now when clients who have updated to 7.6.6 view a movie via our SMIL file the video plays ok but its audio is stuttered and distorted, to the point of being incomprehensible. If the same videos are played back directly (ie the qtsrc attrib points directly at the media file) the video and audio play back fine. And if the video is downloaded to the clients desktop it also plays back ok.
This problem is present on Windows Vista and Windows 7, and in recent versions of Firefox and IE. We do not see this problem on our OSX test machines.
Here's a sample of the kind of embed we're using, with qtsrc pointing to the SMIL file in this case:
<embed
id="main_movie" type="video/quicktime"
src="http://OURSERVER.COM/smallplaceholder.mov"
scale="tofit" controller="false" autoplay="true" bgcolor="#000000" enablejavascript="true"
qtsrc="http://OURSERVER.COM/OURPLAYLIST.smi?id=HASHOFID&format=quicktime&playli st=0418060http://OURSERVER.COM/data/FILENAME.mp4;"
align="center" height="180" width="320">
And here's a sample SMIL file as served up to browsers...
<smil>
<body>
<seq>
<video src="http:/OURSERVER.COM/sample_mpeg4.mp4"/>
</seq>
</body>
</smil>
note: although our SMIL files usually reference our own encoded mp4 media we see the same problem if the playlist points to other sources, including the sample QT files from apple.com
If anyone can suggest how we might solve this, or think of further information that might lead to us solving this problem please reply here and I can furnish it.
thanx in advance,
Dean
I was able to fix this problem with QT SMIL movies by opening them in the QT Player on Windows and showing the AV Controls (under the Window menu). By moving the Pitch Shift control slightly to the left, it cured the gabled audio. Unfortunately, you would have to do this separately for each video you opened and the AV controls are not available for movies that are embedded into a web page. I have also reported this as a bug to Apple and included this info. Perhaps it will help them solve the problem. I sure hope so! This really needs to get fixed
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transmiter/server side code .first run TX on server
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.*;
import javax.media.rtp.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
public class Tx extends JFrame implements ActionListener, KeyListener,
MouseListener, WindowListener {
Vector targets;
JList list;
JButton startXmit;
JButton rtcp;
JButton update;
JButton expiration;
JButton statistics;
JButton addTarget;
JButton removeTarget;
JTextField tf_remote_address;
JTextField tf_remote_data_port;
JTextField tf_media_file;
JTextField tf_data_port;
TargetListModel listModel;
AVTransmitter avTransmitter;
RTCPViewer rtcpViewer;
JCheckBox cb_loop;
Config config;
public Tx() {
setTitle( "JMF/RTP Transmitter");
config= new Config();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
JPanel p= new JPanel();
p.setLayout( gridBagLayout);
JPanel localPanel= createLocalPanel();
gbc= new GridBagConstraints();
gbc.gridx= 0;
gbc.gridy= 0;
gbc.gridwidth= 2;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( localPanel, gbc);
p.add( localPanel);
JPanel targetPanel= createTargetPanel();
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 1;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( targetPanel, gbc);
p.add( targetPanel);
JPanel mediaPanel= createMediaPanel();
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 2;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( mediaPanel, gbc);
p.add( mediaPanel);
JPanel buttonPanel= new JPanel();
rtcp= new JButton( "RTCP Monitor");
update= new JButton( "Transmission Status");
update.setEnabled( false);
rtcp.addActionListener( this);
update.addActionListener( this);
buttonPanel.add( rtcp);
buttonPanel.add( update);
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 3;
gbc.gridwidth= 2;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( buttonPanel, gbc);
p.add( buttonPanel);
getContentPane().add( p);
list.addMouseListener( this);
addWindowListener( this);
pack();
setVisible( true);
private JPanel createMediaPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
JLabel label= new JLabel( "Media Locator:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
tf_media_file= new JTextField( 35);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_media_file, gbc);
p.add( tf_media_file);
tf_media_file.setText( config.media_locator);
cb_loop= new JCheckBox( "loop");
startXmit= new JButton( "Start Transmission");
startXmit.setEnabled( true);
startXmit.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 2;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( cb_loop, gbc);
p.add( cb_loop);
cb_loop.setSelected( true);
cb_loop.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( startXmit, gbc);
p.add( startXmit);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Source");
p.setBorder( titledBorder);
return p;
private JPanel createTargetPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
targets= new Vector();
for( int i= 0; i < config.targets.size(); i++) {
targets.addElement( config.targets.elementAt( i));
listModel= new TargetListModel( targets);
list= new JList( listModel);
list.addKeyListener( this);
list.setPrototypeCellValue( "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
JScrollPane scrollPane= new JScrollPane( list,
ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
gbc= new GridBagConstraints();
gbc.gridx= 0;
gbc.gridy= 0;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( scrollPane, gbc);
p.add( scrollPane);
JPanel p1= new JPanel();
p1.setLayout( gridBagLayout);
JLabel label= new JLabel( "IP Address:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( label, gbc);
p1.add( label);
tf_remote_address= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( tf_remote_address, gbc);
p1.add( tf_remote_address);
label= new JLabel( "Data Port:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( label, gbc);
p1.add( label);
tf_remote_data_port= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( tf_remote_data_port, gbc);
p1.add( tf_remote_data_port);
JPanel p2= new JPanel();
addTarget= new JButton( "Add Target");
removeTarget= new JButton( "Remove Target");
p2.add( addTarget);
p2.add( removeTarget);
addTarget.addActionListener( this);
removeTarget.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 2;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.gridwidth= 2;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 20,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( p2, gbc);
p1.add( p2);
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 0;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( p1, gbc);
p.add( p1);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Targets");
p.setBorder( titledBorder);
return p;
private JPanel createLocalPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
JLabel label= new JLabel( "IP Address:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
JTextField tf_local_host= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_local_host, gbc);
p.add( tf_local_host);
try {
String host= InetAddress.getLocalHost().getHostAddress();
tf_local_host.setText( host);
} catch( UnknownHostException e) {
label= new JLabel( "Data Port:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
tf_data_port= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_data_port, gbc);
p.add( tf_data_port);
tf_data_port.setText( config.local_data_port);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Local Host");
p.setBorder( titledBorder);
return p;
public void actionPerformed( ActionEvent event) {
Object source= event.getSource();
if( source == addTarget) {
String ip= tf_remote_address.getText().trim();
String port= tf_remote_data_port.getText().trim();
String localPort= tf_data_port.getText().trim();
addTargetToList( localPort, ip, port);
if( avTransmitter != null) {
avTransmitter.addTarget( ip, port);
} else if( source == removeTarget) {
int index= list.getSelectedIndex();
if( index != -1) {
Target target= (Target) targets.elementAt( index);
if( avTransmitter != null) {
avTransmitter.removeTarget( target.ip, target.port);
targets.removeElement( target);
listModel.setData( targets);
} else if( source == startXmit) {
if( startXmit.getLabel().equals( "Start Transmission")) {
int data_port= new Integer( tf_data_port.getText()).intValue();
avTransmitter= new AVTransmitter( this, data_port);
avTransmitter.start( tf_media_file.getText().trim(), targets);
avTransmitter.setLooping( cb_loop.isSelected());
startXmit.setLabel( "Stop Transmission");
} else if( startXmit.getLabel().equals( "Stop Transmission")) {
avTransmitter.stop();
avTransmitter= null;
removeNonBaseTargets();
listModel.setData( targets);
startXmit.setLabel( "Start Transmission");
} else if( source == rtcp) {
if( rtcpViewer == null) {
rtcpViewer= new RTCPViewer();
} else {
rtcpViewer.setVisible( true);
rtcpViewer.toFront();
} else if( source == cb_loop) {
if( avTransmitter != null) {
avTransmitter.setLooping( cb_loop.isSelected());
private void removeNonBaseTargets() {
String localPort= tf_data_port.getText().trim();
for( int i= targets.size(); i > 0;) {
Target target= (Target) targets.elementAt( i - 1);
if( !target.localPort.equals( localPort)) {
targets.removeElement( target);
i--;
public void addTargetToList( String localPort,
String ip, String port) {
ListUpdater listUpdater= new ListUpdater( localPort, ip,
port, listModel, targets);
SwingUtilities.invokeLater( listUpdater);
public void rtcpReport( String report) {
if( rtcpViewer != null) {
rtcpViewer.report( report);
public void windowClosing( WindowEvent event) {
config.local_data_port= tf_data_port.getText().trim();
config.targets= new Vector();
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
if( target.localPort.equals( config.local_data_port)) {
config.addTarget( target.ip, target.port);
config.media_locator= tf_media_file.getText().trim();
config.write();
System.exit( 0);
public void windowClosed( WindowEvent event) {
public void windowDeiconified( WindowEvent event) {
public void windowIconified( WindowEvent event) {
public void windowActivated( WindowEvent event) {
public void windowDeactivated( WindowEvent event) {
public void windowOpened( WindowEvent event) {
public void keyPressed( KeyEvent event) {
public void keyReleased( KeyEvent event) {
Object source= event.getSource();
if( source == list) {
int index= list.getSelectedIndex();
public void keyTyped( KeyEvent event) {
public void mousePressed( MouseEvent e) {
public void mouseReleased( MouseEvent e) {
public void mouseEntered( MouseEvent e) {
public void mouseExited( MouseEvent e) {
public void mouseClicked( MouseEvent e) {
Object source= e.getSource();
if( source == list) {
int index= list.getSelectedIndex();
if( index != -1) {
Target target= (Target) targets.elementAt( index);
tf_remote_address.setText( target.ip);
tf_remote_data_port.setText( target.port);
int index= list.locationToIndex( e.getPoint());
public static void main( String[] args) {
new Tx();
class TargetListModel extends AbstractListModel {
private Vector options;
public TargetListModel( Vector options) {
this.options= options;
public int getSize() {
int size;
if( options == null) {
size= 0;
} else {
size= options.size();
return size;
public Object getElementAt( int index) {
String name;
if( index < getSize()) {
Target o= (Target)options.elementAt( index);
name= o.localPort + " ---> " + o.ip + ":" + o.port;
} else {
name= null;
return name;
public void setData( Vector data) {
options= data;
fireContentsChanged( this, 0, data.size());
class ListUpdater implements Runnable {
String localPort, ip, port;
TargetListModel listModel;
Vector targets;
public ListUpdater( String localPort, String ip, String port,
TargetListModel listModel, Vector targets) {
this.localPort= localPort;
this.ip= ip;
this.port= port;
this.listModel= listModel;
this.targets= targets;
public void run() {
Target target= new Target( localPort, ip, port);
if( !targetExists( localPort, ip, port)) {
targets.addElement( target);
listModel.setData( targets);
public boolean targetExists( String localPort, String ip, String port) {
boolean exists= false;
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
if( target.localPort.equals( localPort)
&& target.ip.equals( ip)
&& target.port.equals( port)) {
exists= true;
break;
return exists;
>>>>>>>>>>>>>>>>>
import java.awt.*;
import java.io.*;
import java.net.InetAddress;
import java.util.*;
import javax.media.*;
import javax.media.protocol.*;
import javax.media.format.*;
import javax.media.control.TrackControl;
import javax.media.control.QualityControl;
import javax.media.rtp.*;
import javax.media.rtp.event.*;
import javax.media.rtp.rtcp.*;
public class AVTransmitter implements ReceiveStreamListener, RemoteListener,
ControllerListener {
// Input MediaLocator
// Can be a file or http or capture source
private MediaLocator locator;
private String ipAddress;
private int portBase;
private Processor processor = null;
private RTPManager rtpMgrs[];
private int localPorts[];
private DataSource dataOutput = null;
private int local_data_port;
private Tx tx;
public AVTransmitter( Tx tx, int data_port) {
this.tx= tx;
local_data_port= data_port;
* Starts the transmission. Returns null if transmission started ok.
* Otherwise it returns a string with the reason why the setup failed.
public synchronized String start( String filename, Vector targets) {
String result;
locator= new MediaLocator( filename);
// Create a processor for the specified media locator
// and program it to output JPEG/RTP
result = createProcessor();
if (result != null) {
return result;
// Create an RTP session to transmit the output of the
// processor to the specified IP address and port no.
result = createTransmitter( targets);
if (result != null) {
processor.close();
processor = null;
return result;
// Start the transmission
processor.start();
return null;
* Use the RTPManager API to create sessions for each media
* track of the processor.
private String createTransmitter( Vector targets) {
// Cheated. Should have checked the type.
PushBufferDataSource pbds = (PushBufferDataSource)dataOutput;
PushBufferStream pbss[] = pbds.getStreams();
rtpMgrs = new RTPManager[pbss.length];
localPorts = new int[ pbss.length];
SessionAddress localAddr, destAddr;
InetAddress ipAddr;
SendStream sendStream;
int port;
SourceDescription srcDesList[];
for (int i = 0; i < pbss.length; i++) {
// for (int i = 0; i < 1; i++) {
try {
rtpMgrs[i] = RTPManager.newInstance();
port = local_data_port + 2*i;
localPorts[ i]= port;
localAddr = new SessionAddress( InetAddress.getLocalHost(),
port);
rtpMgrs.initialize( localAddr);
rtpMgrs[i].addReceiveStreamListener(this);
rtpMgrs[i].addRemoteListener(this);
for( int k= 0; k < targets.size(); k++) {
Target target= (Target) targets.elementAt( k);
int targetPort= new Integer( target.port).intValue();
addTarget( localPorts[ i], rtpMgrs[ i], target.ip, targetPort + 2*i);
sendStream = rtpMgrs[i].createSendStream(dataOutput, i);
sendStream.start();
} catch (Exception e) {
e.printStackTrace();
return e.getMessage();
return null;
public void addTarget( String ip, String port) {
for (int i= 0; i < rtpMgrs.length; i++) {
int targetPort= new Integer( port).intValue();
addTarget( localPorts[ i], rtpMgrs[ i], ip, targetPort + 2*i);
public void addTarget( int localPort, RTPManager mgr, String ip, int port) {
try {
SessionAddress addr= new SessionAddress( InetAddress.getByName( ip),
new Integer( port).intValue());
mgr.addTarget( addr);
tx.addTargetToList( localPort + "", ip, port + "");
} catch( Exception e) {
e.printStackTrace();
public void removeTarget( String ip, String port) {
try {
SessionAddress addr= new SessionAddress( InetAddress.getByName( ip),
new Integer( port).intValue());
for (int i= 0; i < rtpMgrs.length; i++) {
rtpMgrs[ i].removeTarget( addr, "target removed from transmitter.");
} catch( Exception e) {
e.printStackTrace();
boolean looping= true;
public void controllerUpdate( ControllerEvent ce) {
System.out.println( ce);
if( ce instanceof DurationUpdateEvent) {
Time duration= ((DurationUpdateEvent) ce).getDuration();
System.out.println( "duration: " + duration.getSeconds());
} else if( ce instanceof EndOfMediaEvent) {
System.out.println( "END OF MEDIA - looping=" + looping);
if( looping) {
processor.setMediaTime( new Time( 0));
processor.start();
public void setLooping( boolean flag) {
looping= flag;
public void update( ReceiveStreamEvent event) {
String timestamp= getTimestamp();
StringBuffer sb= new StringBuffer();
if( event instanceof InactiveReceiveStreamEvent) {
sb.append( timestamp + " Inactive Receive Stream");
} else if( event instanceof ByeEvent) {
sb.append( timestamp + " Bye");
} else {
System.out.println( "ReceiveStreamEvent: "+ event);
tx.rtcpReport( sb.toString());
public void update( RemoteEvent event) {
String timestamp= getTimestamp();
if( event instanceof ReceiverReportEvent) {
ReceiverReport rr= ((ReceiverReportEvent) event).getReport();
StringBuffer sb= new StringBuffer();
sb.append( timestamp + " RR");
if( rr != null) {
Participant participant= rr.getParticipant();
if( participant != null) {
sb.append( " from " + participant.getCNAME());
sb.append( " ssrc=" + rr.getSSRC());
} else {
sb.append( " ssrc=" + rr.getSSRC());
tx.rtcpReport( sb.toString());
} else {
System.out.println( "RemoteEvent: " + event);
private String getTimestamp() {
String timestamp;
Calendar calendar= Calendar.getInstance();
int hour= calendar.get( Calendar.HOUR_OF_DAY);
String hourStr= formatTime( hour);
int minute= calendar.get( Calendar.MINUTE);
String minuteStr= formatTime( minute);
int second= calendar.get( Calendar.SECOND);
String secondStr= formatTime( second);
timestamp= hourStr + ":" + minuteStr + ":" + secondStr;
return timestamp;
private String formatTime( int time) {
String timeStr;
if( time < 10) {
timeStr= "0" + time;
} else {
timeStr= "" + time;
return timeStr;
* Stops the transmission if already started
public void stop() {
synchronized (this) {
if (processor != null) {
processor.stop();
processor.close();
processor = null;
for (int i= 0; i < rtpMgrs.length; i++) {
rtpMgrs[ i].removeTargets( "Session ended.");
rtpMgrs[ i].dispose();
public String createProcessor() {
if (locator == null) {
return "Locator is null";
DataSource ds;
DataSource clone;
try {
ds = javax.media.Manager.createDataSource(locator);
} catch (Exception e) {
return "Couldn't create DataSource";
// Try to create a processor to handle the input media locator
try {
processor = javax.media.Manager.createProcessor(ds);
processor.addControllerListener( this);
} catch (NoProcessorException npe) {
return "Couldn't create processor";
} catch (IOException ioe) {
return "IOException creating processor";
// Wait for it to configure
boolean result = waitForState(processor, Processor.Configured);
if (result == false)
return "Couldn't configure processor";
// Get the tracks from the processor
TrackControl [] tracks = processor.getTrackControls();
// Do we have atleast one track?
if (tracks == null || tracks.length < 1)
return "Couldn't find tracks in processor";
// Set the output content descriptor to RAW_RTP
// This will limit the supported formats reported from
// Track.getSupportedFormats to only valid RTP formats.
ContentDescriptor cd = new ContentDescriptor(ContentDescriptor.RAW_RTP);
processor.setContentDescriptor(cd);
Format supported[];
Format chosen;
boolean atLeastOneTrack = false;
// Program the tracks.
for (int i = 0; i < tracks.length; i++) {
Format format = tracks[i].getFormat();
if (tracks[i].isEnabled()) {
supported = tracks[i].getSupportedFormats();
// We've set the output content to the RAW_RTP.
// So all the supported formats should work with RTP.
// We'll just pick the first one.
if (supported.length > 0) {
if (supported[0] instanceof VideoFormat) {
// For video formats, we should double check the
// sizes since not all formats work in all sizes.
chosen = checkForVideoSizes(tracks[i].getFormat(),
supported[0]);
} else
chosen = supported[0];
tracks[i].setFormat(chosen);
System.err.println("Track " + i + " is set to transmit as:");
System.err.println(" " + chosen);
atLeastOneTrack = true;
} else
tracks[i].setEnabled(false);
} else
tracks[i].setEnabled(false);
if (!atLeastOneTrack)
return "Couldn't set any of the tracks to a valid RTP format";
// Realize the processor. This will internally create a flow
// graph and attempt to create an output datasource for JPEG/RTP
// audio frames.
result = waitForState(processor, Controller.Realized);
if (result == false)
return "Couldn't realize processor";
// Set the JPEG quality to .5.
setJPEGQuality(processor, 0.5f);
// Get the output data source of the processor
dataOutput = processor.getDataOutput();
return null;
static SessionAddress destAddr1, destAddr2;
* For JPEG and H263, we know that they only work for particular
* sizes. So we'll perform extra checking here to make sure they
* are of the right sizes.
Format checkForVideoSizes(Format original, Format supported) {
int width, height;
Dimension size = ((VideoFormat)original).getSize();
Format jpegFmt = new Format(VideoFormat.JPEG_RTP);
Format h263Fmt = new Format(VideoFormat.H263_RTP);
if (supported.matches(jpegFmt)) {
// For JPEG, make sure width and height are divisible by 8.
width = (size.width % 8 == 0 ? size.width :
(int)(size.width / 8) * 8);
height = (size.height % 8 == 0 ? size.height :
(int)(size.height / 8) * 8);
} else if (supported.matches(h263Fmt)) {
// For H.263, we only support some specific sizes.
if (size.width < 128) {
width = 128;
height = 96;
} else if (size.width < 176) {
width = 176;
height = 144;
} else {
width = 352;
height = 288;
} else {
// We don't know this particular format. We'll just
// leave it alone then.
return supported;
return (new VideoFormat(null,
new Dimension(width, height),
Format.NOT_SPECIFIED,
null,
Format.NOT_SPECIFIED)).intersects(supported);
* Setting the encoding quality to the specified value on the JPEG encoder.
* 0.5 is a good default.
void setJPEGQuality(Player p, float val) {
Control cs[] = p.getControls();
QualityControl qc = null;
VideoFormat jpegFmt = new VideoFormat(VideoFormat.JPEG);
// Loop through the controls to find the Quality control for
// the JPEG encoder.
for (int i = 0; i < cs.length; i++) {
if (cs[i] instanceof QualityControl &&
cs[i] instanceof Owned) {
Object owner = ((Owned)cs[i]).getOwner();
// Check to see if the owner is a Codec.
// Then check for the output format.
if (owner instanceof Codec) {
Format fmts[] = ((Codec)owner).getSupportedOutputFormats(null);
for (int j = 0; j < fmts.length; j++) {
if (fmts[j].matches(jpegFmt)) {
qc = (QualityControl)cs[i];
qc.setQuality(val);
System.err.println("- Setting quality to " +
val + " on " + qc);
break;
if (qc != null)
break;
* Convenience methods to handle processor's state changes.
private Integer stateLock = new Integer(0);
private boolean failed = false;
Integer getStateLock() {
return stateLock;
void setFailed() {
failed = true;
private synchronized boolean waitForState(Processor p, int state) {
p.addControllerListener(new StateListener());
failed = false;
// Call the required method on the processor
if (state == Processor.Configured) {
p.configure();
} else if (state == Processor.Realized) {
p.realize();
// Wait until we get an event that confirms the
// success of the method, or a failure event.
// See StateListener inner class
while (p.getState() < state && !failed) {
synchronized (getStateLock()) {
try {
getStateLock().wait();
} catch (InterruptedException ie) {
return false;
if (failed)
return false;
else
return true;
* Inner Classes
class StateListener implements ControllerListener {
public void controllerUpdate(ControllerEvent ce) {
// If there was an error during configure or
// realizI do this all the time, I put my MBP to a 60 inch Sharp. If you have the video working do the simple thing first. Check to make sure your sound is on your TV and Mac. Then if that doesn't work go to System Prefrences and under sound go to a tab called Output and see if your TV is listed and if it is change it to that setting
Hope It Works -
Can no longer connect for audio or video chat : Error -8 drama
I've been video and audio chatting to Europe for quite some time with no problem. After installing a new modem (Motorola Surfboard SB5101) I'm now getting the dreaded Error -8 and can not connect for either audio or video. Text works fine.
I've poked around the forums and see some similarities with problems other users are having, but I have to assume my issues have something to do with the new modem, since I've been using audio/video chat for so long without a hassle.
I went through all the usual steps as mentioned in other threads: Firewall is off, Quicktime streaming changed to T1, tried changing the port to 443... Nothing works.
I'm using OSX 10.4.10
iChat AV 3.1.8(v445)
Modem goes to an Airport Express which is wired to my desktop computer.
I get the same results from my MacBook Pro as I do with my desktop so it's not a computer issue.
Upon inviting or being invited the wheels spin a moment and then I get a message saying I left the chat.
And the report is this:
Date/Time: 2007-08-09 14:09:15.107 -0400
OS Version: 10.4.10 (Build 8R218)
Report Version: 4
iChat Connection Log:
AVChat started with ID 886884518.
[email protected]: State change from AVChatNoState to AVChatStateWaiting.
0x457a70: State change from AVChatNoState to AVChatStateInvited.
0x457a70: State change from AVChatStateInvited to AVChatStateConnecting.
[email protected]: State change from AVChatStateWaiting to AVChatStateConnecting.
[email protected]: State change from AVChatStateConnecting to AVChatStateEnded.
Chat ended with error -8
0x457a70: State change from AVChatStateConnecting to AVChatStateEnded.
Chat ended with error -8
Video Conference Error Report:
4.005750 @:0 type=4 (00000000/2)
[VCSIP_INVITEERROR]
[19]
4.005627 @SIP/SIP.c:2447 type=4 (900A0015/2)
[SIPConnectIPPort failed]
2.005101 @SIP/SIP.c:2447 type=4 (900A0015/2)
[SIPConnectIPPort failed]
Video Conference Support Report:
3.506302 @SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.1.2;branch=z9hG4bK745ad9d276fb8ac3
Max-Forwards: 70
To: "u0" <sip:[email protected]>
From: "[email protected]" <sip:[email protected]>;tag=524660867
Call-ID: 9a84c4ea-46a3-11dc-8590-fb4ac9af13c4@lip
CSeq: 1 INVITE
Contact: <sip:[email protected]>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 539
v=0
o=briansack 0 0 IN IP4 10.0.1.2
[email protected]
c=IN IP4 10.0.1.2
b=AS:2147483647
t=0 0
a=hwi:34:2:1249
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 16386 RTP/AVP 12 3 0
a=rtcp:16387
a=rtpmap:3 GSM/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpID:138569664
m=video 16384 RTP/AVP 126 34
a=rtcp:16385
a=rtpmap:126 X-H264/90000
a=rtpmap:34 H263/90000
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:15
a=RTCP:AUDIO 16387 VIDEO 16385
a=pogo
a=fmtp:126 imagesize 0 rules 15:160:120:160:120
a=rtpID:-1522475925
2.506041 @SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.1.2;branch=z9hG4bK745ad9d276fb8ac3
Max-Forwards: 70
To: "u0" <sip:[email protected]>
From: "[email protected]" <sip:[email protected]>;tag=524660867
Call-ID: 9a84c4ea-46a3-11dc-8590-fb4ac9af13c4@lip
CSeq: 1 INVITE
Contact: <sip:[email protected]>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 539
v=0
o=briansack 0 0 IN IP4 10.0.1.2
[email protected]
c=IN IP4 10.0.1.2
b=AS:2147483647
t=0 0
a=hwi:34:2:1249
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 16386 RTP/AVP 12 3 0
a=rtcp:16387
a=rtpmap:3 GSM/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpID:138569664
m=video 16384 RTP/AVP 126 34
a=rtcp:16385
a=rtpmap:126 X-H264/90000
a=rtpmap:34 H263/90000
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:15
a=RTCP:AUDIO 16387 VIDEO 16385
a=pogo
a=fmtp:126 imagesize 0 rules 15:160:120:160:120
a=rtpID:-1522475925
2.005780 @SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 10.0.1.2;branch=z9hG4bK745ad9d276fb8ac3
Max-Forwards: 70
To: "u0" <sip:[email protected]>
From: "[email protected]" <sip:[email protected]>;tag=524660867
Call-ID: 9a84c4ea-46a3-11dc-8590-fb4ac9af13c4@lip
CSeq: 1 INVITE
Contact: <sip:[email protected]>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 539
v=0
o=briansack 0 0 IN IP4 10.0.1.2
[email protected]
c=IN IP4 10.0.1.2
b=AS:2147483647
t=0 0
a=hwi:34:2:1249
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 16386 RTP/AVP 12 3 0
a=rtcp:16387
a=rtpmap:3 GSM/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpID:138569664
m=video 16384 RTP/AVP 126 34
a=rtcp:16385
a=rtpmap:126 X-H264/90000
a=rtpmap:34 H263/90000
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:15
a=RTCP:AUDIO 16387 VIDEO 16385
a=pogo
a=fmtp:126 imagesize 0 rules 15:160:120:160:120
a=rtpID:-1522475925
1.505465 @SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP m.0:40941;branch=z9hG4bK3298135216491829
Max-Forwards: 70
To: "u0" <sip:[email protected]>
From: "[email protected]" <sip:[email protected]>;tag=1327194736
Call-ID: 9953701c-46a3-11dc-8590-a9eff06413c4@lip
CSeq: 1 INVITE
Contact: <sip:[email protected]:40941>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 545
v=0
o=briansack 0 0 IN IP4 m.0
[email protected]
c=IN IP4 m.0
b=AS:2147483647
t=0 0
a=hwi:34:2:1249
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 40947 RTP/AVP 12 3 0
a=rtcp:40949
a=rtpmap:3 GSM/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpID:138569664
m=video 40943 RTP/AVP 126 34
a=rtcp:40945
a=rtpmap:126 X-H264/90000
a=rtpmap:34 H263/90000
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:15
a=RTCP:AUDIO 40949 VIDEO 40945
a=pogo
a=fmtp:126 imagesize 0 rules 15:160:120:160:120
a=rtpID:-1522475925
0.505163 @SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP m.0:40941;branch=z9hG4bK3298135216491829
Max-Forwards: 70
To: "u0" <sip:[email protected]>
From: "[email protected]" <sip:[email protected]>;tag=1327194736
Call-ID: 9953701c-46a3-11dc-8590-a9eff06413c4@lip
CSeq: 1 INVITE
Contact: <sip:[email protected]:40941>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 545
v=0
o=briansack 0 0 IN IP4 m.0
[email protected]
c=IN IP4 m.0
b=AS:2147483647
t=0 0
a=hwi:34:2:1249
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 40947 RTP/AVP 12 3 0
a=rtcp:40949
a=rtpmap:3 GSM/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpID:138569664
m=video 40943 RTP/AVP 126 34
a=rtcp:40945
a=rtpmap:126 X-H264/90000
a=rtpmap:34 H263/90000
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:15
a=RTCP:AUDIO 40949 VIDEO 40945
a=pogo
a=fmtp:126 imagesize 0 rules 15:160:120:160:120
a=rtpID:-1522475925
0.004892 @SIP/Transport.c:1218 type=1 (00000000/0)
[INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP m.0:40941;branch=z9hG4bK3298135216491829
Max-Forwards: 70
To: "u0" <sip:[email protected]>
From: "[email protected]" <sip:[email protected]>;tag=1327194736
Call-ID: 9953701c-46a3-11dc-8590-a9eff06413c4@lip
CSeq: 1 INVITE
Contact: <sip:[email protected]:40941>;isfocus
User-Agent: Viceroy 1.2
Content-Type: application/sdp
Content-Length: 545
v=0
o=briansack 0 0 IN IP4 m.0
[email protected]
c=IN IP4 m.0
b=AS:2147483647
t=0 0
a=hwi:34:2:1249
a=bandwidthDetection:YES
a=iChatEncryption:NO
m=audio 40947 RTP/AVP 12 3 0
a=rtcp:40949
a=rtpmap:3 GSM/8000/1
a=rtpmap:0 PCMU/8000/1
a=rtpID:138569664
m=video 40943 RTP/AVP 126 34
a=rtcp:40945
a=rtpmap:126 X-H264/90000
a=rtpmap:34 H263/90000
a=fmtp:34 imagesize 1 rules 30:352:288
a=framerate:15
a=RTCP:AUDIO 40949 VIDEO 40945
a=pogo
a=fmtp:126 imagesize 0 rules 15:160:120:160:120
a=rtpID:-1522475925
0.000000 @:0 type=2 (00000000/22)
[VCVIDEO_OUTGOINGATTEMPT]
[4]
Video Conference User Report:
Binary Images Description for "iChat":
0x1000 - 0x172fff com.apple.iChat 3.1.8 (445) /Applications/iChat.app/Contents/MacOS/iChat
0x5e05000 - 0x5e0ffff com.apple.IOFWDVComponents 1.7.9 /System/Library/Components/IOFWDVComponents.component/Contents/MacOS/IOFWDVComp onents
0x5e17000 - 0x5e49fff com.apple.QuickTimeIIDCDigitizer 7.2 /System/Library/QuickTime/QuickTimeIIDCDigitizer.component/Contents/MacOS/Quick TimeIIDCDigitizer
0x5e7a000 - 0x5e7bfff com.apple.aoa.halplugin 2.5.6 (2.5.6b5) /System/Library/Extensions/IOAudioFamily.kext/Contents/PlugIns/AOAHALPlugin.bun dle/Contents/MacOS/AOAHALPlugin
0x5ed8000 - 0x5f2dfff com.DivXInc.DivXDecoder 6.0.0 /Library/QuickTime/DivX 6 Decoder.component/Contents/MacOS/DivX 6 Decoder
0x5f3b000 - 0x5f80fff com.apple.QuickTimeUSBVDCDigitizer 1.7.5 /System/Library/QuickTime/QuickTimeUSBVDCDigitizer.component/Contents/MacOS/Qui ckTimeUSBVDCDigitizer
0x5fa2000 - 0x5fccfff com.apple.iSightAudio 7.2 /Library/Audio/Plug-Ins/HAL/iSightAudio.plugin/Contents/MacOS/iSightAudio
0x607b000 - 0x618afff com.apple.opengl 1.4.7 /System/Library/Frameworks/OpenGL.framework/Resources/GLEngine.bundle/GLEngine
0x61b9000 - 0x6234fff com.apple.GeForce3GLDriver 1.4.18 (4.1.8) /System/Library/Extensions/GeForce3GLDriver.bundle/Contents/MacOS/GeForce3GLDri ver
0x623c000 - 0x6255fff com.apple.opengl 1.4.7 /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLDriver.bundl e/GLDriver
0x625b000 - 0x6267fff com.apple.audio.AudioIPCPlugIn 1.0.2 /System/Library/Extensions/AudioIPCDriver.kext/Contents/Resources/AudioIPCPlugI n.bundle/Contents/MacOS/AudioIPCPlugIn
0x629b000 - 0x62b6fff com.apple.opengl 1.4.7 /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLRendererFloa t.bundle/GLRendererFloat
0x6483000 - 0x64bcfff com.apple.audio.SoundManager.Components 3.9.1 /System/Library/Components/SoundManagerComponents.component/Contents/MacOS/Soun dManagerComponents
0x6714000 - 0x672afff com.apple.FCP Uncompressed 422.component 1.4 /Library/QuickTime/FCP Uncompressed 422.component/Contents/MacOS/FCP Uncompressed 422
0x672f000 - 0x6733fff com.apple.iokit.IOQTComponents 1.4 /System/Library/Components/IOQTComponents.component/Contents/MacOS/IOQTComponen ts
0x41410000 - 0x414affff com.apple.QuickTimeImporters.component 7.2 /System/Library/QuickTime/QuickTimeImporters.component/Contents/MacOS/QuickTime Importers
0x419b0000 - 0x419effff com.apple.QuickTimeFireWireDV.component 7.2 /System/Library/QuickTime/QuickTimeFireWireDV.component/Contents/MacOS/QuickTim eFireWireDV
0x8fe00000 - 0x8fe52fff dyld /usr/lib/dyld
0x90000000 - 0x901bcfff libSystem.B.dylib /usr/lib/libSystem.B.dylib
0x90214000 - 0x90219fff libmathCommon.A.dylib /usr/lib/system/libmathCommon.A.dylib
0x9021b000 - 0x90268fff com.apple.CoreText 1.0.3 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreText.framework/Versions/A/CoreText
0x90293000 - 0x90344fff com.apple.ApplicationServices.ATS 1.9.6 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
0x90373000 - 0x9072efff com.apple.CoreGraphics 1.258.75 (???) /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
0x907bb000 - 0x90894fff com.apple.CoreFoundation 6.4.7 (368.28) /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x908dd000 - 0x908ddfff com.apple.CoreServices 10.4 (???) /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x908df000 - 0x909e1fff libicucore.A.dylib /usr/lib/libicucore.A.dylib
0x90a3b000 - 0x90abffff libobjc.A.dylib /usr/lib/libobjc.A.dylib
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0x98df3000 - 0x999b9fff com.apple.QuickTimeComponents.component 7.2 /System/Library/QuickTime/QuickTimeComponents.component/Contents/MacOS/QuickTim eComponents
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Any brilliance on the matter would be greatly appreciated.
Thanks!
B.
Message was edited by: Brian SackHi Brian,
I am not sure the Surfboard routes either.
It is not in this list http://portforward.com/routers.htm which is where we start for most people.
A little of what we are talking about.
DHCP is a way that so called server in routing devices hands out IP addresses.
You Mac will be getting one from the Airport.
You can look it up on your Mac in System Preferences > Network.
Pick the connection method from the second drop down and then the TCP/IP tab in the next section.
The IP is listed, Whether is asking for a DHCP given IP, A Subnet Mask, DSN servers (if your lucky) and the "router" IP
With an Airport Router you are likely to get an IP that starts 10.0.1.x and the "Router" is at 10.0.1.1
If connected direct to the modem the the "router" is the modem. In the case of some cable connections it will pass through the Public IP given to you by the ISP
On the whole Cable modems do not route but it is not exclusive.
IF it does not route and you connect directly to it then the IP will show may be you Public IP seen here http://myip.dk/
Next bit.
Now all ports below the number 1024 are normally open in all routers and modems that route.
Web browsing and Mail apps tend to use ports below this figure which is why any routing device will work and get you on the Net no matter how they are set up.
Applications like IM ones like iChat and On-line games use ports above this 1024 threshold and as a consequence need ports to be allowed or opened.
Next Bit.
Certain apps like iChat like the LAN and the ports open to be very Linear. In fact iChat is fussy about how many times it has to go through devices that all do NAT Based methods of opening the ports.
These methods are Port Forwarding, Port Triggering and DMZ (which is an extreme form of Port Forwarding).
Because of the way routers allow the routing and Addressing info through even from another routing device then the computer can have two IP address (one from the modem and one from the Router).
See the Second pic This means the computer sits in two subnets on your LAN.
The normal way of telling this in an iChat log is to look for the change in ports that showed up in your Log.
SO far the above infers what you can do using System Preferences > Network to find out if both device are routing.
I am not sure that the surfboard is.
I think the idea that the ISP is doing something to the packets is the problem.
Read the whole of this page http://www.ralphjohnsuk.dsl.pipex.com/page4.html if you want to know more. It starts with the Mac Firewall but goes on to the stuff listed above.
7:18 PM Friday; August 10, 2007 -
Can Compressor make MPEG2 files that will work on a Princeton Video server?
I am responsible for selection of equipment and software for the local Public Access studio. I am trying to be sure if Final Cut Studio will output the format we need.
We need to output video files that are compatible with our Princeton Server Group B1400 Digital Video Server. We have found it is very difficult to be certain if a particular program will generate what we need. Below are the specs for our server.
Basically it is a a rather specific form of MPEG2. I see on the Apple web site that Compressor will do MPEG2, but that is qualified with "Quicktime", and is mostly described as being for DVD production. It seems that those are not necessarily compatible with our server. It wants a plain MPEG2 file in the format given in the specs. The server is a Linux system and its software does not know about special formats like say Quicktime or DVD might wrap around the basic data. It seems to want just plain files of MPEG2 video (and audio of course) data.
One of my sources of my concern is that in spite of what Apple says about Compressor doing MPEG2, the makers of the server say FCP does not create output for it.
I need to be assured about this before we invest in software and possibly new hardware.
These are the specs for the encoding the server needs:
Princeton Server Group
B1400 Digital Video Server
Encoding Requirements
In order to ensure optimum video playout quality on the B1400 Digital Video Broadcast Server, MPEG video and audio content must be encoded as follows.
• Video files for play-out must be encoded in multiplexed MPEG-2 program stream (PS) or MPEG-1 system stream format. Video can be encoded at rates up to 15 Mb/s.
• Use 4:2:0, not 4:2:2 encoding.
• Audio must be encoded as MPEG1 Layer II, AC-3 Stereo, or Linear PCM.
• The video and audio presentation time stamp (PTS) values in a file must be continuous and increasing. The time between the first and last time stamps in a file should reflect the actual duration of the file.
Encoding Recommendations
• Resolution: 720 X 480 or 704 X 480 in NTSC
• Closed GOP (Group of Pictures) with an “I-frame” every 15 frames
• Audio bit rate of 256 kbps
• Sampling rate of 48 kHz
• Program stream files should have one end code (00 00 01 b9) at the very end of the file.
• Recommended bit rates for various types of video content are as follows:
o 4 Mbps for good quality video with low motion
o 6 Mbps for good quality with average motion
o 8 Mbps for good quality with high motion and
o 10 Mbps for high quality with high motion content.
• MPEG2 files are constructed from multiplexed audio and video streams. The length of video and audio stream segments within the MPEG file should be identical.
G4 Mac OS X (10.4.7)Hey Terry
in the corporate world wee have to contend with clients who are all windows based and prevented from installing anything on their systems.
I use Flip4Mac, Studio Pro HD, with the following mix of settings;
Open clip in QT, I do also use compressor but for some reason I like using QT for exporting to WMV.
File/Export
Export:movie to windows media
Use: One pass VBR, Presentation (high), 16:9
Options>
Advanced... input type: interlace Lower field first(DV), output type: progressive
Coding method: Two pass VBR
Give this a shot and then tweak to suit your needs, oh and you can save your settings as a preset for QuickTime.
Within Compressor there is no export to WMV, so you have to start with another setting and create your own saving it for future use.
Tony -
Audio Follows Video greyed out
I am working with a sequence that uses clips that were shot DVC Pro 720p 30, NTSC. Suddenly, when looking at interview content in the canvas and viewer, the sync for content from a particular reel is slightly off. I noticed under the view menu / audio playback, audio follows video is greyed out. The only options are default or built in output. At first I thought that was the proglem (can anyone tell me why it is greyed out, and if I need to select this somehow?)
Interestingly, however, other clips in the project, shot on the same day, do not appear to have the same sync problem. What would cause the sync problem on this one reel? I did not notice the sync problem when previously working with the material.
Thank you so much in advance.I seem to remember this happening before with captured material. Can someone answer the question of whether I should switch the sequence settings to the settings that I used to capture the clip originally?
Or could the clip have been corrupted, and if yes, what to do? Or is the simplest solution to re-sync by eye? It's sort of like when the data flow isn't fast enough and sync is lost.
Thanks to all for your comments. -
Audio and video not synchronized in recording made with Lync 2013
There appears to be no forum for the Lync 2013 client yet, so I am posting this in the Lync 2013 server forum.
Environment: Lync 2013 Server and Lync 2013 32-bit client. Only one Lync pool. Conference call was scheduled using "Lync Meeting" in Outlook about a week before the call. Call recorded on a laptop that was plugged into our LAN with an Ethernet
cable.
Problem: User scheduled a conference call with screen sharing (PowerPoint) and recorded the call. The audio and video are not synchronized in the recording. There is several minutes' delay, with the audio lagging behind the PowerPoint. The last slide
on the call was presented, the call ended, and the presenter ended the recording (I was present for all this and can confirm no user error in these steps); however, in the recording, the slides change before the speaker talks about it, and the last
couple of minutes are cut off.
Any ideas on why this happened? Web research has failed me. Thank you.You may need to lower the recording quality as your PC might not be able to keep up the pace.
Go to Options in Lync client -> Recording -> Select 480p
Then test again
- Belgian Unified Communications Community : http://www.pro-lync.be - MCM/MVP/MCT -
[SOLVED] Air Video Server Error Message
Does anyone here have any experience with Air Video Server for Linux? I sure hope so...
I'm trying to install Air Video Server on my Arch box so I can watch movies on my iPad without using my mac or converting the video files. I got everything installed, and the server software was running. When I tried to start a video on my iPad, I got "unexpected error." So, I killed the process and started the server manually, and then tried to play a video. This is the output that I got. Maybe you can help?
/usr/share/air-video-server/avconv -ss 60.0 -i /home/media/completed/Contraband/Contraband.mp4 -vframes 1 -f mjpeg -
DEBUG: Thumbnail: >>
346E68693468737A697E347A7269366D727F7E7436687E696D7E69347A6D7874756D3B3668683B2D2B352B3B36723B347374767E34767E7F727A3478
74766B777E6F7E7F345874756F697A797A757F345874756F697A797A757F35766B2F3B366D7D697A767E683B2A3B367D3B76716B7E7C3B36
<<
===================================================================================================
DEBUG: Thumbnail: avconv version 0.8, Copyright (c) 2000-2012 the Libav developers
DEBUG: Thumbnail: built on Dec 2 2012 10:17:40 with gcc 4.7.2
DEBUG: Thumbnail: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/media/completed/Contraband/Contraband.mp4':
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: major_brand : isom
DEBUG: Thumbnail: minor_version : 1
DEBUG: Thumbnail: compatible_brands: isom
DEBUG: Thumbnail: creation_time : 2012-04-15 06:49:31
DEBUG: Thumbnail: Duration: 01:49:38.56, start: 0.000000, bitrate: 1670 kb/s
DEBUG: Thumbnail: Chapter #0.0: start 0.000000, end 506.256000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:00:00.000
DEBUG: Thumbnail: Chapter #0.1: start 506.256000, end 886.260000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:08:26.256
DEBUG: Thumbnail: Chapter #0.2: start 886.260000, end 1152.860000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:14:46.260
DEBUG: Thumbnail: Chapter #0.3: start 1152.860000, end 1492.366000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:19:12.860
DEBUG: Thumbnail: Chapter #0.4: start 1492.366000, end 1752.626000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:24:52.366
DEBUG: Thumbnail: Chapter #0.5: start 1752.626000, end 2079.744000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:29:12.626
DEBUG: Thumbnail: Chapter #0.6: start 2079.744000, end 2336.376000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:34:39.744
DEBUG: Thumbnail: Chapter #0.7: start 2336.376000, end 2736.943000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:38:56.376
DEBUG: Thumbnail: Chapter #0.8: start 2736.943000, end 3137.760000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:45:36.943
DEBUG: Thumbnail: Chapter #0.9: start 3137.760000, end 3596.092000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:52:17.760
DEBUG: Thumbnail: Chapter #0.10: start 3596.092000, end 3931.344000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 00:59:56.092
DEBUG: Thumbnail: Chapter #0.11: start 3931.344000, end 4203.991000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:05:31.344
DEBUG: Thumbnail: Chapter #0.12: start 4203.991000, end 4575.112000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:10:03.991
DEBUG: Thumbnail: Chapter #0.13: start 4575.112000, end 4877.372000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:16:15.112
DEBUG: Thumbnail: Chapter #0.14: start 4877.372000, end 5134.046000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:21:17.372
DEBUG: Thumbnail: Chapter #0.15: start 5134.046000, end 5415.910000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:25:34.046
DEBUG: Thumbnail: Chapter #0.16: start 5415.910000, end 5726.888000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:30:15.910
DEBUG: Thumbnail: Chapter #0.17: start 5726.888000, end 5941.144000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:35:26.888
DEBUG: Thumbnail: Chapter #0.18: start 5941.144000, end 6272.099000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:39:01.144
DEBUG: Thumbnail: Chapter #0.19: start 6272.099000, end 6578.560000
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: title : 01:44:32.099
DEBUG: Thumbnail: Stream #0.0(und): Video: h264 (High), yuv420p, 1920x816 [PAR 40001:40000 DAR 2353:1000], 1597 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
DEBUG: Thumbnail: Target Framerate: 23.975
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: creation_time : 2012-04-15 00:12:59
DEBUG: Thumbnail: Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 70 kb/s
DEBUG: Thumbnail: Metadata:
DEBUG: Thumbnail: creation_time : 2012-04-15 06:56:52
DEBUG: Thumbnail: Output #0, mjpeg, to 'pipe:':
DEBUG: Thumbnail: Metadata:java.lang.RuntimeException: java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit
at com.inmethod.air.connect.service.ServiceRegistry$ServiceWrapper.invoke(ServiceRegistry.java:231)
at com.inmethod.air.connect.service.ServiceRegistry.invokeMethod(ServiceRegistry.java:48)
at com.inmethod.air.connect.service.ServiceRegistry.invokeMethod(ServiceRegistry.java:37)
at com.inmethod.air.connect.filter.ServiceFilter.doFilter(ServiceFilter.java:82)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:313)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506)
at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
at org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:227)
at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
Caused by: java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit
at javax.swing.ImageIcon.<init>(ImageIcon.java:274)
at com.inmethod.common.util.ImageUtil$CreateThumbnail.<init>(ImageUtil.java:55)
at com.inmethod.common.util.ImageUtil.resizeImageAsJPG(ImageUtil.java:24)
at com.inmethod.air.video.common.thumbnail.ThumbnailParser.resize(ThumbnailParser.java:84)
at com.inmethod.air.video.common.thumbnail.ThumbnailParser.parseThumbnail(ThumbnailParser.java:73)
at com.inmethod.air.video.common.thumbnail.ThumbnailParser.parseThumbnailInternal(ThumbnailParser.java:104)
at com.inmethod.air.video.common.thumbnail.ThumbnailParser.parseThumbnail(ThumbnailParser.java:139)
at com.inmethod.air.video.v0240.info.MediaInfoParser.parseMediaInfo(MediaInfoParser.java:80)
at com.inmethod.air.video.v0240.model.fs.FileSystemVideoItem.loadDetail(FileSystemVideoItem.java:59)
at com.inmethod.air.video.v0240.model.BrowseService.getNestedItem(BrowseService.java:354)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at com.inmethod.air.connect.service.ServiceRegistry$ServiceWrapper.invoke(ServiceRegistry.java:221)
... 15 more
^C[root@arch ~]#
It seems to me that there's a problem with creating a thumbnail. Any ideas?
Last edited by discipulus (2012-12-03 04:07:27)Alright, I have figured it out after much working! After doing some searching and realizing that no one had encountered this problem with Arch Linux before, I decided to search specifically by the error that Java was giving, instead of trying to relate it to Air Video Server. I had to edit the script that launched the daemon (/usr/bin/air-video-server) to add the option -Djava.awt.headless=true and then I needed to install an additional library (that wasn't on the dependencies list, ironically enough) fontconfig. I guess fontconfig is standard with X11, which is why it wasn't listed as a dependency. It's also why I needed to add the headless option to the launch script, because I don't use a GUI, just a CLI. This is solved, and I'll leave it up for others that may encounter similar problems.
-
How to synchronize audio and video rtp-streams
Hi everyone!
I've tried to make one of the processors, processor1, control the other processor, processor2, with processor1.addController(processor2) but I get a
javax.media.IncompatibleTimeBaseException. I need to synchronize audio and video rtp-streams because they are sometimes completely out of sync.
In JMF API Guide I've read:
"2. Determine which Player object's time base is going to be used to drive
the other Player objects and set the time base for the synchronized
Player objects. Not all Player objects can assume a new time base.
For example, if one of the Player objects you want to synchronize has
a *push-data-source*, that Player object's time base must be used to
drive the other Player objects."
I'm using a custom AVReceive3 to receive rtp-streams and then I create processors for the incoming stream's datasource's, and they are ALL PushBufferDataSource's.
Does this mean I can't synchronize these. If so is there any way I can change them into Pull...DataSources ?
How are you supposed to sync audio and video if not with as above ?camelstrike wrote:
Hi everyone!
I've tried to make one of the processors, processor1, control the other processor, processor2, with processor1.addController(processor2) but I get a
javax.media.IncompatibleTimeBaseException. I need to synchronize audio and video rtp-streams because they are sometimes completely out of sync.
In JMF API Guide I've read:
"2. Determine which Player object's time base is going to be used to drive
the other Player objects and set the time base for the synchronized
Player objects. Not all Player objects can assume a new time base.
For example, if one of the Player objects you want to synchronize has
a *push-data-source*, that Player object's time base must be used to
drive the other Player objects."
I'm using a custom AVReceive3 to receive rtp-streams and then I create processors for the incoming stream's datasource's, and they are ALL PushBufferDataSource's.
Does this mean I can't synchronize these. If so is there any way I can change them into Pull...DataSources ?The RTP packets are timestamped when they leave, and they are played in order. You can't change the timebase on an RTP stream because, for all intensive purposes, it's "live" data. It plays at the speed the transmitting RTP server wants it to play, and it never gets behind because it drops out of order and old data packets.
If your RTP streams aren't synced correctly on the receiving end, it means they aren't being synced on the transmitting end...so you should look into the other side of the equation. -
My computer does not support a Quartz Extreme Compatible Graphic Card. I have an iMovie that became choppy and now has corrupted audio. Could this have happened when I upgraded from standard iMovie to iMovieHD? The iMovie may have been originally created in standard iMovie and upgraded when I opened the file after installing the upgrade. I have some iMovies created using VHS clips which are also corrupted. I have tried deleting the iMovies preferences, which did not help. The iMovie will run fine with the audio deleted. The entire movie, audio and video runs fine on my iBook G4 with the same version of iMovie.
Choppy playback, sometimes called stutter, can occur when a project contains many audio clips. iMovie 6 is a bit more sensitive to the number of clips than earlier versions, which may explain why the problem began after converting.
Here's a (long) description of the problem, offering several workarounds:
http://discussions.apple.com/thread.jspa?messageID=2597033#2597033
Karl -
Extra hardware interface for transmiting both Audio and video to client ??
hi i m doing e-learning project. i have to capture video from webcam and voice from headphone and send to client.
but my code is working fine for either one at a time.
DO i need some extra hardware interface for Transmitting both Audio and video to client im using code AVTransmit and AVReceive found from this site only
After running TX
i give dsound:// & vfw://0 in Media Locater only sound is received and no vedio
and when i give vfw://0 in Media Locater only live video is transmited.
im using JMF1.1.2e.
if any one know the method to run or cause of it plz reply me soon. i will be very thankfull
transmiter/server side code .first run TX on server
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.*;
import javax.media.rtp.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
public class Tx extends JFrame implements ActionListener, KeyListener,
MouseListener, WindowListener {
Vector targets;
JList list;
JButton startXmit;
JButton rtcp;
JButton update;
JButton expiration;
JButton statistics;
JButton addTarget;
JButton removeTarget;
JTextField tf_remote_address;
JTextField tf_remote_data_port;
JTextField tf_media_file;
JTextField tf_data_port;
TargetListModel listModel;
AVTransmitter avTransmitter;
RTCPViewer rtcpViewer;
JCheckBox cb_loop;
Config config;
public Tx() {
setTitle( "JMF/RTP Transmitter");
config= new Config();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
JPanel p= new JPanel();
p.setLayout( gridBagLayout);
JPanel localPanel= createLocalPanel();
gbc= new GridBagConstraints();
gbc.gridx= 0;
gbc.gridy= 0;
gbc.gridwidth= 2;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( localPanel, gbc);
p.add( localPanel);
JPanel targetPanel= createTargetPanel();
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 1;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( targetPanel, gbc);
p.add( targetPanel);
JPanel mediaPanel= createMediaPanel();
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 2;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( mediaPanel, gbc);
p.add( mediaPanel);
JPanel buttonPanel= new JPanel();
rtcp= new JButton( "RTCP Monitor");
update= new JButton( "Transmission Status");
update.setEnabled( false);
rtcp.addActionListener( this);
update.addActionListener( this);
buttonPanel.add( rtcp);
buttonPanel.add( update);
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 3;
gbc.gridwidth= 2;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( buttonPanel, gbc);
p.add( buttonPanel);
getContentPane().add( p);
list.addMouseListener( this);
addWindowListener( this);
pack();
setVisible( true);
private JPanel createMediaPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
JLabel label= new JLabel( "Media Locator:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
tf_media_file= new JTextField( 35);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_media_file, gbc);
p.add( tf_media_file);
tf_media_file.setText( config.media_locator);
cb_loop= new JCheckBox( "loop");
startXmit= new JButton( "Start Transmission");
startXmit.setEnabled( true);
startXmit.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 2;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( cb_loop, gbc);
p.add( cb_loop);
cb_loop.setSelected( true);
cb_loop.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( startXmit, gbc);
p.add( startXmit);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Source");
p.setBorder( titledBorder);
return p;
private JPanel createTargetPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
targets= new Vector();
for( int i= 0; i < config.targets.size(); i++) {
targets.addElement( config.targets.elementAt( i));
listModel= new TargetListModel( targets);
list= new JList( listModel);
list.addKeyListener( this);
list.setPrototypeCellValue( "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx");
JScrollPane scrollPane= new JScrollPane( list,
ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
gbc= new GridBagConstraints();
gbc.gridx= 0;
gbc.gridy= 0;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( scrollPane, gbc);
p.add( scrollPane);
JPanel p1= new JPanel();
p1.setLayout( gridBagLayout);
JLabel label= new JLabel( "IP Address:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( label, gbc);
p1.add( label);
tf_remote_address= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( tf_remote_address, gbc);
p1.add( tf_remote_address);
label= new JLabel( "Data Port:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( label, gbc);
p1.add( label);
tf_remote_data_port= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( tf_remote_data_port, gbc);
p1.add( tf_remote_data_port);
JPanel p2= new JPanel();
addTarget= new JButton( "Add Target");
removeTarget= new JButton( "Remove Target");
p2.add( addTarget);
p2.add( removeTarget);
addTarget.addActionListener( this);
removeTarget.addActionListener( this);
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 2;
gbc.weightx = 1.0;
gbc.weighty = 0.0;
gbc.gridwidth= 2;
gbc.anchor = GridBagConstraints.CENTER;
gbc.fill = GridBagConstraints.HORIZONTAL;
gbc.insets = new Insets( 20,5,0,5);
((GridBagLayout)p1.getLayout()).setConstraints( p2, gbc);
p1.add( p2);
gbc= new GridBagConstraints();
gbc.gridx= 1;
gbc.gridy= 0;
gbc.weightx= 1.0;
gbc.weighty= 1.0;
gbc.anchor= GridBagConstraints.CENTER;
gbc.fill= GridBagConstraints.BOTH;
gbc.insets= new Insets( 10, 5, 0, 0);
((GridBagLayout)p.getLayout()).setConstraints( p1, gbc);
p.add( p1);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Targets");
p.setBorder( titledBorder);
return p;
private JPanel createLocalPanel() {
JPanel p= new JPanel();
GridBagLayout gridBagLayout= new GridBagLayout();
GridBagConstraints gbc;
p.setLayout( gridBagLayout);
JLabel label= new JLabel( "IP Address:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
JTextField tf_local_host= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 0;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_local_host, gbc);
p.add( tf_local_host);
try {
String host= InetAddress.getLocalHost().getHostAddress();
tf_local_host.setText( host);
} catch( UnknownHostException e) {
label= new JLabel( "Data Port:");
gbc= new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.EAST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,0,5);
((GridBagLayout)p.getLayout()).setConstraints( label, gbc);
p.add( label);
tf_data_port= new JTextField( 15);
gbc= new GridBagConstraints();
gbc.gridx = 1;
gbc.gridy = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.anchor = GridBagConstraints.WEST;
gbc.fill = GridBagConstraints.NONE;
gbc.insets = new Insets( 5,5,10,5);
((GridBagLayout)p.getLayout()).setConstraints( tf_data_port, gbc);
p.add( tf_data_port);
tf_data_port.setText( config.local_data_port);
TitledBorder titledBorder= new TitledBorder( new EtchedBorder(), "Local Host");
p.setBorder( titledBorder);
return p;
public void actionPerformed( ActionEvent event) {
Object source= event.getSource();
if( source == addTarget) {
String ip= tf_remote_address.getText().trim();
String port= tf_remote_data_port.getText().trim();
String localPort= tf_data_port.getText().trim();
addTargetToList( localPort, ip, port);
if( avTransmitter != null) {
avTransmitter.addTarget( ip, port);
} else if( source == removeTarget) {
int index= list.getSelectedIndex();
if( index != -1) {
Target target= (Target) targets.elementAt( index);
if( avTransmitter != null) {
avTransmitter.removeTarget( target.ip, target.port);
targets.removeElement( target);
listModel.setData( targets);
} else if( source == startXmit) {
if( startXmit.getLabel().equals( "Start Transmission")) {
int data_port= new Integer( tf_data_port.getText()).intValue();
avTransmitter= new AVTransmitter( this, data_port);
avTransmitter.start( tf_media_file.getText().trim(), targets);
avTransmitter.setLooping( cb_loop.isSelected());
startXmit.setLabel( "Stop Transmission");
} else if( startXmit.getLabel().equals( "Stop Transmission")) {
avTransmitter.stop();
avTransmitter= null;
removeNonBaseTargets();
listModel.setData( targets);
startXmit.setLabel( "Start Transmission");
} else if( source == rtcp) {
if( rtcpViewer == null) {
rtcpViewer= new RTCPViewer();
} else {
rtcpViewer.setVisible( true);
rtcpViewer.toFront();
} else if( source == cb_loop) {
if( avTransmitter != null) {
avTransmitter.setLooping( cb_loop.isSelected());
private void removeNonBaseTargets() {
String localPort= tf_data_port.getText().trim();
for( int i= targets.size(); i > 0;) {
Target target= (Target) targets.elementAt( i - 1);
if( !target.localPort.equals( localPort)) {
targets.removeElement( target);
i--;
public void addTargetToList( String localPort,
String ip, String port) {
ListUpdater listUpdater= new ListUpdater( localPort, ip,
port, listModel, targets);
SwingUtilities.invokeLater( listUpdater);
public void rtcpReport( String report) {
if( rtcpViewer != null) {
rtcpViewer.report( report);
public void windowClosing( WindowEvent event) {
config.local_data_port= tf_data_port.getText().trim();
config.targets= new Vector();
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
if( target.localPort.equals( config.local_data_port)) {
config.addTarget( target.ip, target.port);
config.media_locator= tf_media_file.getText().trim();
config.write();
System.exit( 0);
public void windowClosed( WindowEvent event) {
public void windowDeiconified( WindowEvent event) {
public void windowIconified( WindowEvent event) {
public void windowActivated( WindowEvent event) {
public void windowDeactivated( WindowEvent event) {
public void windowOpened( WindowEvent event) {
public void keyPressed( KeyEvent event) {
public void keyReleased( KeyEvent event) {
Object source= event.getSource();
if( source == list) {
int index= list.getSelectedIndex();
public void keyTyped( KeyEvent event) {
public void mousePressed( MouseEvent e) {
public void mouseReleased( MouseEvent e) {
public void mouseEntered( MouseEvent e) {
public void mouseExited( MouseEvent e) {
public void mouseClicked( MouseEvent e) {
Object source= e.getSource();
if( source == list) {
int index= list.getSelectedIndex();
if( index != -1) {
Target target= (Target) targets.elementAt( index);
tf_remote_address.setText( target.ip);
tf_remote_data_port.setText( target.port);
int index= list.locationToIndex( e.getPoint());
public static void main( String[] args) {
new Tx();
class TargetListModel extends AbstractListModel {
private Vector options;
public TargetListModel( Vector options) {
this.options= options;
public int getSize() {
int size;
if( options == null) {
size= 0;
} else {
size= options.size();
return size;
public Object getElementAt( int index) {
String name;
if( index < getSize()) {
Target o= (Target)options.elementAt( index);
name= o.localPort + " ---> " + o.ip + ":" + o.port;
} else {
name= null;
return name;
public void setData( Vector data) {
options= data;
fireContentsChanged( this, 0, data.size());
class ListUpdater implements Runnable {
String localPort, ip, port;
TargetListModel listModel;
Vector targets;
public ListUpdater( String localPort, String ip, String port,
TargetListModel listModel, Vector targets) {
this.localPort= localPort;
this.ip= ip;
this.port= port;
this.listModel= listModel;
this.targets= targets;
public void run() {
Target target= new Target( localPort, ip, port);
if( !targetExists( localPort, ip, port)) {
targets.addElement( target);
listModel.setData( targets);
public boolean targetExists( String localPort, String ip, String port) {
boolean exists= false;
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
if( target.localPort.equals( localPort)
&& target.ip.equals( ip)
&& target.port.equals( port)) {
exists= true;
break;
return exists;
import java.awt.*;
import java.io.*;
import java.net.InetAddress;
import java.util.*;
import javax.media.*;
import javax.media.protocol.*;
import javax.media.format.*;
import javax.media.control.TrackControl;
import javax.media.control.QualityControl;
import javax.media.rtp.*;
import javax.media.rtp.event.*;
import javax.media.rtp.rtcp.*;
public class AVTransmitter implements ReceiveStreamListener, RemoteListener,
ControllerListener {
// Input MediaLocator
// Can be a file or http or capture source
private MediaLocator locator;
private String ipAddress;
private int portBase;
private Processor processor = null;
private RTPManager rtpMgrs[];
private int localPorts[];
private DataSource dataOutput = null;
private int local_data_port;
private Tx tx;
public AVTransmitter( Tx tx, int data_port) {
this.tx= tx;
local_data_port= data_port;
* Starts the transmission. Returns null if transmission started ok.
* Otherwise it returns a string with the reason why the setup failed.
public synchronized String start( String filename, Vector targets) {
String result;
locator= new MediaLocator( filename);
// Create a processor for the specified media locator
// and program it to output JPEG/RTP
result = createProcessor();
if (result != null) {
return result;
// Create an RTP session to transmit the output of the
// processor to the specified IP address and port no.
result = createTransmitter( targets);
if (result != null) {
processor.close();
processor = null;
return result;
// Start the transmission
processor.start();
return null;
* Use the RTPManager API to create sessions for each media
* track of the processor.
private String createTransmitter( Vector targets) {
// Cheated. Should have checked the type.
PushBufferDataSource pbds = (PushBufferDataSource)dataOutput;
PushBufferStream pbss[] = pbds.getStreams();
rtpMgrs = new RTPManager[pbss.length];
localPorts = new int[ pbss.length];
SessionAddress localAddr, destAddr;
InetAddress ipAddr;
SendStream sendStream;
int port;
SourceDescription srcDesList[];
for (int i = 0; i < pbss.length; i++) {
// for (int i = 0; i < 1; i++) {
try {
rtpMgrs[i] = RTPManager.newInstance();
port = local_data_port + 2*i;
localPorts[ i]= port;
localAddr = new SessionAddress( InetAddress.getLocalHost(),
port);
rtpMgrs.initialize( localAddr);
rtpMgrs[i].addReceiveStreamListener(this);
rtpMgrs[i].addRemoteListener(this);
for( int k= 0; k < targets.size(); k++) {
Target target= (Target) targets.elementAt( k);
int targetPort= new Integer( target.port).intValue();
addTarget( localPorts[ i], rtpMgrs[ i], target.ip, targetPort + 2*i);
sendStream = rtpMgrs[i].createSendStream(dataOutput, i);
sendStream.start();
} catch (Exception e) {
e.printStackTrace();
return e.getMessage();
return null;
public void addTarget( String ip, String port) {
for (int i= 0; i < rtpMgrs.length; i++) {
int targetPort= new Integer( port).intValue();
addTarget( localPorts[ i], rtpMgrs[ i], ip, targetPort + 2*i);
public void addTarget( int localPort, RTPManager mgr, String ip, int port) {
try {
SessionAddress addr= new SessionAddress( InetAddress.getByName( ip),
new Integer( port).intValue());
mgr.addTarget( addr);
tx.addTargetToList( localPort + "", ip, port + "");
} catch( Exception e) {
e.printStackTrace();
public void removeTarget( String ip, String port) {
try {
SessionAddress addr= new SessionAddress( InetAddress.getByName( ip),
new Integer( port).intValue());
for (int i= 0; i < rtpMgrs.length; i++) {
rtpMgrs[ i].removeTarget( addr, "target removed from transmitter.");
} catch( Exception e) {
e.printStackTrace();
boolean looping= true;
public void controllerUpdate( ControllerEvent ce) {
System.out.println( ce);
if( ce instanceof DurationUpdateEvent) {
Time duration= ((DurationUpdateEvent) ce).getDuration();
System.out.println( "duration: " + duration.getSeconds());
} else if( ce instanceof EndOfMediaEvent) {
System.out.println( "END OF MEDIA - looping=" + looping);
if( looping) {
processor.setMediaTime( new Time( 0));
processor.start();
public void setLooping( boolean flag) {
looping= flag;
public void update( ReceiveStreamEvent event) {
String timestamp= getTimestamp();
StringBuffer sb= new StringBuffer();
if( event instanceof InactiveReceiveStreamEvent) {
sb.append( timestamp + " Inactive Receive Stream");
} else if( event instanceof ByeEvent) {
sb.append( timestamp + " Bye");
} else {
System.out.println( "ReceiveStreamEvent: "+ event);
tx.rtcpReport( sb.toString());
public void update( RemoteEvent event) {
String timestamp= getTimestamp();
if( event instanceof ReceiverReportEvent) {
ReceiverReport rr= ((ReceiverReportEvent) event).getReport();
StringBuffer sb= new StringBuffer();
sb.append( timestamp + " RR");
if( rr != null) {
Participant participant= rr.getParticipant();
if( participant != null) {
sb.append( " from " + participant.getCNAME());
sb.append( " ssrc=" + rr.getSSRC());
} else {
sb.append( " ssrc=" + rr.getSSRC());
tx.rtcpReport( sb.toString());
} else {
System.out.println( "RemoteEvent: " + event);
private String getTimestamp() {
String timestamp;
Calendar calendar= Calendar.getInstance();
int hour= calendar.get( Calendar.HOUR_OF_DAY);
String hourStr= formatTime( hour);
int minute= calendar.get( Calendar.MINUTE);
String minuteStr= formatTime( minute);
int second= calendar.get( Calendar.SECOND);
String secondStr= formatTime( second);
timestamp= hourStr + ":" + minuteStr + ":" + secondStr;
return timestamp;
private String formatTime( int time) {
String timeStr;
if( time < 10) {
timeStr= "0" + time;
} else {
timeStr= "" + time;
return timeStr;
* Stops the transmission if already started
public void stop() {
synchronized (this) {
if (processor != null) {
processor.stop();
processor.close();
processor = null;
for (int i= 0; i < rtpMgrs.length; i++) {
rtpMgrs[ i].removeTargets( "Session ended.");
rtpMgrs[ i].dispose();
public String createProcessor() {
if (locator == null) {
return "Locator is null";
DataSource ds;
DataSource clone;
try {
ds = javax.media.Manager.createDataSource(locator);
} catch (Exception e) {
return "Couldn't create DataSource";
// Try to create a processor to handle the input media locator
try {
processor = javax.media.Manager.createProcessor(ds);
processor.addControllerListener( this);
} catch (NoProcessorException npe) {
return "Couldn't create processor";
} catch (IOException ioe) {
return "IOException creating processor";
// Wait for it to configure
boolean result = waitForState(processor, Processor.Configured);
if (result == false)
return "Couldn't configure processor";
// Get the tracks from the processor
TrackControl [] tracks = processor.getTrackControls();
// Do we have atleast one track?
if (tracks == null || tracks.length < 1)
return "Couldn't find tracks in processor";
// Set the output content descriptor to RAW_RTP
// This will limit the supported formats reported from
// Track.getSupportedFormats to only valid RTP formats.
ContentDescriptor cd = new ContentDescriptor(ContentDescriptor.RAW_RTP);
processor.setContentDescriptor(cd);
Format supported[];
Format chosen;
boolean atLeastOneTrack = false;
// Program the tracks.
for (int i = 0; i < tracks.length; i++) {
Format format = tracks[i].getFormat();
if (tracks[i].isEnabled()) {
supported = tracks[i].getSupportedFormats();
// We've set the output content to the RAW_RTP.
// So all the supported formats should work with RTP.
// We'll just pick the first one.
if (supported.length > 0) {
if (supported[0] instanceof VideoFormat) {
// For video formats, we should double check the
// sizes since not all formats work in all sizes.
chosen = checkForVideoSizes(tracks[i].getFormat(),
supported[0]);
} else
chosen = supported[0];
tracks[i].setFormat(chosen);
System.err.println("Track " + i + " is set to transmit as:");
System.err.println(" " + chosen);
atLeastOneTrack = true;
} else
tracks[i].setEnabled(false);
} else
tracks[i].setEnabled(false);
if (!atLeastOneTrack)
return "Couldn't set any of the tracks to a valid RTP format";
// Realize the processor. This will internally create a flow
// graph and attempt to create an output datasource for JPEG/RTP
// audio frames.
result = waitForState(processor, Controller.Realized);
if (result == false)
return "Couldn't realize processor";
// Set the JPEG quality to .5.
setJPEGQuality(processor, 0.5f);
// Get the output data source of the processor
dataOutput = processor.getDataOutput();
return null;
static SessionAddress destAddr1, destAddr2;
* For JPEG and H263, we know that they only work for particular
* sizes. So we'll perform extra checking here to make sure they
* are of the right sizes.
Format checkForVideoSizes(Format original, Format supported) {
int width, height;
Dimension size = ((VideoFormat)original).getSize();
Format jpegFmt = new Format(VideoFormat.JPEG_RTP);
Format h263Fmt = new Format(VideoFormat.H263_RTP);
if (supported.matches(jpegFmt)) {
// For JPEG, make sure width and height are divisible by 8.
width = (size.width % 8 == 0 ? size.width :
(int)(size.width / 8) * 8);
height = (size.height % 8 == 0 ? size.height :
(int)(size.height / 8) * 8);
} else if (supported.matches(h263Fmt)) {
// For H.263, we only support some specific sizes.
if (size.width < 128) {
width = 128;
height = 96;
} else if (size.width < 176) {
width = 176;
height = 144;
} else {
width = 352;
height = 288;
} else {
// We don't know this particular format. We'll just
// leave it alone then.
return supported;
return (new VideoFormat(null,
new Dimension(width, height),
Format.NOT_SPECIFIED,
null,
Format.NOT_SPECIFIED)).intersects(supported);
* Setting the encoding quality to the specified value on the JPEG encoder.
* 0.5 is a good default.
void setJPEGQuality(Player p, float val) {
Control cs[] = p.getControls();
QualityControl qc = null;
VideoFormat jpegFmt = new VideoFormat(VideoFormat.JPEG);
// Loop through the controls to find the Quality control for
// the JPEG encoder.
for (int i = 0; i < cs.length; i++) {
if (cs[i] instanceof QualityControl &&
cs[i] instanceof Owned) {
Object owner = ((Owned)cs[i]).getOwner();
// Check to see if the owner is a Codec.
// Then check for the output format.
if (owner instanceof Codec) {
Format fmts[] = ((Codec)owner).getSupportedOutputFormats(null);
for (int j = 0; j < fmts.length; j++) {
if (fmts[j].matches(jpegFmt)) {
qc = (QualityControl)cs[i];
qc.setQuality(val);
System.err.println("- Setting quality to " +
val + " on " + qc);
break;
if (qc != null)
break;
* Convenience methods to handle processor's state changes.
private Integer stateLock = new Integer(0);
private boolean failed = false;
Integer getStateLock() {
return stateLock;
void setFailed() {
failed = true;
private synchronized boolean waitForState(Processor p, int state) {
p.addControllerListener(new StateListener());
failed = false;
// Call the required method on the processor
if (state == Processor.Configured) {
p.configure();
} else if (state == Processor.Realized) {
p.realize();
// Wait until we get an event that confirms the
// success of the method, or a failure event.
// See StateListener inner class
while (p.getState() < state && !failed) {
synchronized (getStateLock()) {
try {
getStateLock().wait();
} catch (InterruptedException ie) {
return false;
if (failed)
return false;
else
return true;
* Inner Classes
class StateListener implements ControllerListener {
public void controllerUpdate(ControllerEvent ce) {
// If there was an error during configure or
// realize, the processor will be closed
if (ce instanceof ControllerClosedEvent)
setFailed();
// All controller events, send a notification
// to the waiting thread in waitForState method.
if (ce instanceof ControllerEvent) {
synchronized (getStateLock()) {
getStateLock().notifyAll();
import java.io.*;
import java.util.*;
public class Config {
private String pathPrefix;
public String local_data_port;
public Vector targets;
public String media_locator;
public Config() {
pathPrefix= System.getProperty( "user.home") + File.separator;
read();
public void read() {
targets= new Vector();
try {
String path= pathPrefix + "xmit.dat";
FileInputStream fin= new FileInputStream( path);
BufferedInputStream bin= new BufferedInputStream( fin);
DataInputStream din= new DataInputStream( bin);
local_data_port= readString( din);
int n_targets= din.readInt();
for( int i= 0; i < n_targets; i++) {
String ip= readString( din);
String port= readString( din);
targets.addElement( new Target( local_data_port, ip, port));
media_locator= readString( din);
fin.close();
} catch( IOException e) {
System.out.println( "xmit.dat file missing!");
local_data_port= "";
media_locator= "";
public void write() {
try {
String path= pathPrefix + "xmit.dat";
FileOutputStream fout= new FileOutputStream( path);
BufferedOutputStream bout= new BufferedOutputStream( fout);
DataOutputStream dout= new DataOutputStream( bout);
writeString( dout, local_data_port);
dout.writeInt( targets.size());
for( int i= 0; i < targets.size(); i++) {
Target target= (Target) targets.elementAt( i);
writeString( dout, target.ip);
writeString( dout, target.port);
writeString( dout, media_locator);
dout.flush();
dout.close();
fout.close();
} catch( IOException e) {
System.out.println( "Error writing xmit.dat!");
public String readString( DataInputStream din) {
String s= null;
try {
short length= din.readShort();
if( length > 0) {
byte buf[]= new byte[ length];
din.read( buf, 0, length);
s= new String( buf);
} catch( IOException e) {
System.err.println( e);
return s;
public void writeString( DataOutputStream dout, String str) {
try {
if( str != null) {
dout.writeShort( str.length());
dout.writeBytes( str);
} else {
dout.writeShort( 0);
} catch( Exception e) {
e.printStackTrace();
public void addTarget( String ip, String port) {
targets.addElement( new Target( "", ip, port));
import java.io.*;
import java.awt.*;
import java.awt.event.*;
import java.net.*;
import java.util.*;
import javax.media.rtp.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
public class RTCPViewer extends JFrame implements ActionListener, KeyListener,
MouseListener, WindowListener {
private JList list;
private Vector reports;
private RtcpListModel listModel;
private JButton clear;
private JButton start;
private boolean recording;
public RTCPViewer() {
setTitle( "JMF/RTCP Tracer");
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