Why do my audio and video start in sync, then quickly go out of sync?
I've just installed Windows 8 and also purchased Premiere Elements 12.
I've also got Windows movie maker.
When I play my clips in Premiere Elements, they audio and video start of synced, but quickly go out. This doesn't happen with Windows Movie Maker and I had trialed some NCH video editing software also and didn't have that problem.
can someone tell me what I need to do to get this working right?
MASMAS
The first thing that we need to know are the properties of what you are putting on the Timeline. What works in another software does not necessarily work in Premiere Elements. Each program has its own supported formats.
a. What is the file extension for this file? .MOV or .MP4?
b. Does the iPad describe it as 1080p or 720p?
c. If you open Premiere Elements 12 and go to Edit Menu/Project Settings/General, what do you see for Editing Mode, Timebase, Frame Size, and Pixel Aspect Ratio, even if those field appear to be grayed out.
Two immediate troubleshooting avenues are going to be in the direction of...
a. Project settings not set up to match the properties of the source from the iPad. Then we would start a new project and set the project setting manually before importing your video. Details for manually setting the project preset are in the following.
ATR Premiere Elements Troubleshooting: PE11: Accuracy of Automatic Project Preset (New Project Dialog) Setting
b. The iPad video being recorded with a variable frame rate instead of a constant one...the remedy then would probably be to take your video in a program like HandBrake to change the variable to a constant frame rate. And after that, import the corrected video into the Premiere Elements project which has the correct project preset (preferably set manual to assure the correct result).
Please see what you can put together in the way of video details, and we will sort this out.
Thanks.
ATR
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No matter what sort of video I'm trying to play: Youtube, a movie on DVD, a movie on an external hard drive, etc, after a short time the audio and video get out of synch with each other. This is often, though not always, signaled by a short audio phrase being repeated (eg: "I don't know, Scully, how about you? about you?"). I can solve the problem by quitting the app and starting it back up but it will eventually screw up again.
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The first thing that we need to know are the properties of what you are putting on the Timeline. What works in another software does not necessarily work in Premiere Elements. Each program has its own supported formats.
a. What is the file extension for this file? .MOV or .MP4?
b. Does the iPad describe it as 1080p or 720p?
c. If you open Premiere Elements 12 and go to Edit Menu/Project Settings/General, what do you see for Editing Mode, Timebase, Frame Size, and Pixel Aspect Ratio, even if those field appear to be grayed out.
Two immediate troubleshooting avenues are going to be in the direction of...
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ATR Premiere Elements Troubleshooting: PE11: Accuracy of Automatic Project Preset (New Project Dialog) Setting
b. The iPad video being recorded with a variable frame rate instead of a constant one...the remedy then would probably be to take your video in a program like HandBrake to change the variable to a constant frame rate. And after that, import the corrected video into the Premiere Elements project which has the correct project preset (preferably set manual to assure the correct result).
Please see what you can put together in the way of video details, and we will sort this out.
Thanks.
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This made me smile, because things like this do make me smile... I never make videos on YouCam, but I did this time, so I could test this one out.
You did not say what webcam software you are using...
======================================================================
Video and audio recording works on YouCam V3.5.1.4606
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AND
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OK
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==========================================================================
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Dragon-Fur -
DO i need some extra hardware interface for receving both Audio and video
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 receving both Audio and video. 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
// 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
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