Need Clarification reg Runnable interface

Hi,
I want to know how can we create a instance of the interface Runnable. I have seen the code running with " new Runnable" in swings. How can we can instantiate the interface. pls clarify if any of you know.
Thanks,
Guhan.

Thanks you very much Hacker.
_Guhan.

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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
 // realiz

I 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

Need clarification regarding the test cable-diagnostics tdr command

Hello,
I've read about the test cable-diagnostics tdr command but I need clarification on the examples listed below to make sure that I am providing the right answer to my co-workers.
Example 1:
CXXX7SW17#show cable-diagnostic tdr int g0/20
TDR test last run on: July 16 10:23:00
Interface Speed Local pair Pair length        Remote pair Pair status
Gi0/20    auto Pair A     N/A                        N/A                Normal
                       Pair B     72   +/- 10 meters N/A                Open
                       Pair C     75   +/- 10 meters N/A                Short/Crosstalk
                       Pair D     74   +/- 10 meters N/A                Short/Crosstalk
Does this example mean that there's a cable length issue in the line which is causing the device that it's connected to not to work properly?
Example 2:
CXXX2SW140#show cable-diagnostics tdr int g0/21
TDR test last run on: July 16 09:16:22
Interface Speed Local pair Pair length        Remote pair Pair status
Gi0/21    100M Pair A     N/A                      Pair A           Normal
                          Pair B     N/A                      Pair B           Normal
                          Pair C     N/A                     Pair C           Normal
                          Pair D     N/A                     Pair D           Normal
Does this example state that the cable line is okay for use?
Example 3:
CXXX1SW19#show cable-diagnostics tdr int g0/22
TDR test last run on: July 16 06:36:53
Interface Speed Local pair Pair length            Remote pair Pair status
Gi0/22   auto    Pair A       1    +/- 10 meters N/A               Open
                          Pair B     39   +/- 10 meters   N/A               Open
                          Pair C     72   +/- 10 meters   N/A               Open
                          Pair D     1    +/- 10 meters    N/A              Open
Does this example mean that there isn't a device connected on the other end? No pin-contact?
Thank you very much for any help you could provide.
S

I found this article here at supportforums that seemed like the best explanation I've read so far for TDR info.
Hope that helps.

What is the diffrence between My Runnable Interface and Java Runnable

Hi folks
all we know that interfaces in java just a decleration for methods and variables.
so my Question is why when i create an interface its name is "Runnable" and i declared a method called "run" inside it.then when i implements this interface with any class don't do the thread operation but when i implement the java.lang.Runnable the thread is going fine.
so what is the diffrence between My Runnable Interface and Java Runnable?
thnx

Hi folks
all we know that interfaces in java just a decleration
for methods and variables.
so my Question is why when i create an interface its
name is "Runnable" and i declared a method called
"run" inside it.then when i implements this interface
with any class don't do the thread operation but when
i implement the java.lang.Runnable the thread is going
fine.
so what is the diffrence between My Runnable Interface
and Java Runnable?
thnxClasses and interfaces are not identified by just their "name", like Runnable. The actual "name" the compiler uses is java.lang.Runnable. So even if you duplicate the Runnable interface in your own package, it's not the same as far as the compiler is concerned, because it's in a different package.
Try importing both java.util.* and java.awt.* (which both have a class or interface named List), and then try to compile List myList = new ArrayList();

I am considering buying a new MAC laptop to run LOGIC for composition and band live/recording, but which one is best as I do not want to spend too much money? Does it have a line in and how do you monitor sound? Will I need adaptors and a interface?

Can anybody help?
I am considering buying a new MAC laptop to run LOGIC for composition and band live/recording, but which one is best as I do not want to spend too much money?
Does it have a line in and how do you monitor sound?
Will I need adaptors and an interface?
Also, I am guessing as Logic only runs on MAC surely then they would not the best spec to recommend to run it?
I see all the upgrades as additional memory or a faster process?
Is a retina screen necessary, and why flash based storage against a 1TB hard drive, and a i5 instead of an i7
The main reason for this purchase is to play live and use backing tracks and record found sounds and make creative songs.
I hope you can provide some valuable feedback, as I am a longtime MAC user and see upgrades and changes happen regularly but the most important thing is the songs not the equipment.
I have £500 already and willing to add another 500 to 700 pounds, then software extra.

Can anybody help?
I am considering buying a new MAC laptop to run LOGIC for composition and band live/recording, but which one is best as I do not want to spend too much money?
Does it have a line in and how do you monitor sound?
Will I need adaptors and an interface?
Also, I am guessing as Logic only runs on MAC surely then they would not the best spec to recommend to run it?
I see all the upgrades as additional memory or a faster process?
Is a retina screen necessary, and why flash based storage against a 1TB hard drive, and a i5 instead of an i7
The main reason for this purchase is to play live and use backing tracks and record found sounds and make creative songs.
I hope you can provide some valuable feedback, as I am a longtime MAC user and see upgrades and changes happen regularly but the most important thing is the songs not the equipment.
I have £500 already and willing to add another 500 to 700 pounds, then software extra.

Need Clarification On Internal tables in Start Routine

Hi,
I have intenal table some IT_A which deletes the requests which are populated in to it.
Now I need to populate requests into IT_A from another internal table like IT_B which are of different structure.
I have three fields in common in both internal tables like RNR,Timestamp n SID with different field names
I Need Clarification that if i move the contents of the three fields to IT_A from IT_B by spcifying these three fields.Will the internal table IT_A deletes the Requests?
Thanks,
Sriram.

Hi Sriram,
As mentioned IT_A deleted the request loaded into it.
if you move the contents of the three fields to IT_A from IT_B by spcifying the three fields after the deletion step for internal table IT_A takes place then it wont get deleted.
But it would be deleted if the the contents are moved before the deletion step takes place
regards,
mahesh

Need clarification on issue with tablespaces

Hi All,
I needed clarification on this issue with tablespaces.I am following a guideline which says "Presently,The general rule of thumb is to concentrate on tablespaces that are 90% or greater used and have less than 2 GB of free space"
My Scenario:-Now i have tablesace which is 97.23 % and the free space is 10 gb.Please advise me that whats the best next step I can take in this respect?
I am very new to this and just following the guideline,so can you all please explain me some details about this.
Thanks

Well, the guideline says "*and* have less than 2 GB of free space"
Since that tablespace as 10GB of free space, the guideline says that you do not need to concentrate on it. Eh ?
I would be careful with guidelines that are hard-coded in this manner. You need to know the context in which the guideline was set.
Assuming that your database/application doesn't grow suddenly by 1GB or larger (or create temporary segments / objects of 1GB or larger), the "2 GB of free space" might make sense. Then, again, it depends on the extent allocation type. What size are extents getting allocated.
You should check with your organisation's senior DBAs on what happens if you don't concentrate on a tablespace because it is outside the guidelines !

Need clarification on Bigfile Tablespaces

In the following Oracle Documentation Lirbary PDF,
    Oracle® Database
    Concepts
    10g Release 2 (10.2)
    B14220-02
    October 2005
section
    Overview of Tablespaces
    Bigfile Tablespaces (page: 3-5)
it says,
    Benefits of Bigfile Tablespaces
    * Bigfile tablespaces can significantly increase the storage capacity of an Oracle database. Smallfile tablespaces can contain up to 1024 files, but bigfile tablespaces contain only one file that can be 1024 times larger than a smallfile tablespace. The total tablespace capacity is the same for smallfile tablespaces and bigfile tablespaces. However, because there is a limit of 64K database for each database, a database can contain 1024 times more bigfile tablespaces than smallfile tablespaces, so bigfile tablespaces increase the total database capacity by 3 orders of magnitude. In other words, 8 exabytes is the maximum size of the Oracle database when bigfile tablespaces are used with the maximum block size (32k).
I need clarification on how to arrive at 8 exabytes ?
1024 x 32k x 64,000 ??
According to the exerpt above, there's no mention of maximum number of Operating System blocks per extent. Unless this was assumed knowledge ... how do I get 8 exabytes ?
And if "a database can contain 1024 times more bigfile tablespaces than smallfile tablespaces", then what's the upper limit on smallfile tablespaces ? -- was this sentence referring to the number of datafiles per smallfile tablespace ? ...
O_o
Thanks !
Message was edited by:
mvanle

Hi,
According to [url http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14237/limits002.htm#i287915]Physical Database Limits page, a bigfile tablespace contains only one datafile or tempfile, which can contain up to approximately 4 billion ( 232 ) blocks. The maximum size of the single datafile or tempfile is 128 terabytes (TB) for a tablespace with 32K blocks and 32TB for a tablespace with 8K blocks. In resume, A bigfile tablespace is a tablespace containing a single datafile that can be as large as 128 terabytes (TB), depending on the block size of the tablespace. In conjunction with setting the initialization parameter DB_FILES to the maximum value of 65,635 the total size of the database can be more than 8 exabytes (EB)
>>how do I get 8 exabytes ?
You can calculate the maximum amount of space (M) in a single Oracle database as the maximum number of datafiles (D) multiplied by the maximum number of blocks per datafile (F) multiplied by the tablespace block size (B):
M = D * F * B. Therefore, the maximum database size, given the maximum block size and the maximum number of datafiles, is:
65,535 datafiles * 4,294,967,296 blocks per datafile * 32,768 block size = 9,223,231,299,366,420,480 = 8EB.Cheers
Legatti

Do we need to create message interfaces for idocs and rfcs thatare imported

do we need to create message interfaces for idocs and rfcs thatare imported
from sap server
in scenarios from sap system to file or vice versa
i knew that we need not create message types
do we also skip creating message interfaces

hi,
you create an abstract message interface for IDOC only if you want to use
them in a BPM (integration process)
for more about IDOCs have a look at my book:
<a href="/people/michal.krawczyk2/blog/2006/10/11/xi-new-book-mastering-idoc-business-scenarios-with-sap-xi">Mastering IDoc Business Scenarios with SAP XI</a>
Regards,
michal
<a href="/people/michal.krawczyk2/blog/2005/06/28/xipi-faq-frequently-asked-questions">XI / PI FAQ - Frequently Asked Questions</a>

BPM, Workflow and Netweaver - Need Clarification

Hi Guru,
I am new to workflow, BPM and Netweaver. I have several questions about those concepts.
1. What is/are the different between workflow and webflow. Which scenario should take workflow into consideration? Which scenario webflow can be applied to?
2. What is/are the different between workflow and BPM. If I am going to implement workflow in a company, do I need to implement business workflow as well as BPM?
3. I need clarification on Netweaver platform and concept.
4. What is/are the different between workflow in R/3 and workflow under Netweaver?
5. If I am going to implement workflow integrated with R/3 and Outlook email, do I need to buy new wrokflow for Netweaver and Netweaver platform or alternatively, I can use business workflow module under R/3 system?
Sorry for many questions asked. I am new to those products. I am now working on software selection for workflow technology. My company is going to implement new workflow to client. Thank you very much.
Cheers,

Please ask only one (or closely related) questions per thread. This makes it a lot easier to get a good structure in the database of previously answered questions. While we are on the subject of previously answered questions, I think you should have a look at them....
My suggestion is therefore:
1. Close this thread
2. Read the Frequently Answered Questions. Before you ask (here are many workflow answers)
3. Search the forum.
4. Create new threads if you have questions afterwards.

Need clarification for these names, R/3, WAS, NetWeaver

Hi All
I posted the question on WAS preview installation, then I realized I should have put it here. Here is the link to that post:
Need clarification for these names, R/3, WAS, NetWeaver
Thanks again for any input
Xueqing
Added the link to the first post
Message was edited by: xueqing Han

Hi Xueqing,
First of all, sorry for any confusion that we have caused you. I hope I can give you an answer that will clear up the confusion. Sorry, but it is a long explanation of the development of two application solution but history tends to be very long winded!
It is not true SAP R/3 Enterprise equals SAP Web AS, and I'll hopefully explain why:
In the beginning (at least in the client server world) SAP only ship SAP R/3. The technology layer under SAP R/3 was called SAP Basis. There was only SAP Basis under SAP R/3.
SAP then started to deliver other software solutions that were not included in or built on the SAP R/3 software. These included SAP Business Information Warehouse, SAP APO, SAP SEM, SAP CRM, and the list goes on.
These solutions needed to run on technology layer (like SAP R/3 did). SAP Basis was the obvious choice for this because of the common technology layer providing DB/OS abstraction and a coding environment.
~2001:
Later there came the need to have SAP Basis support the web and its web standards and other programming languages. This radically changed what SAP Basis was and we decided to rename the new technology layer to SAP Web Application Server (SAP Web AS). So the SAP Basis name was retired and SAP Basis 4.6D was the last release called SAP Basis.
The new release and the "technology change" means that all the applications mentioned above now ran on SAP Web AS. The first release of SAP Web AS was 6.10.
~2002:
SAP Web AS was first used in SAP R/3 Enterprise release .
The important fact is that SAP R/3 Enterprise runs on SAP Web AS. SAP R/3 Enterprise = SAP R/3 business applications + new business functions + SAP Web AS.
~2003:
I hope the above explanation is clear, because technology takes another major change. It was realized that SAP now had a collection of business solutions/applications (SAP R/3, mySAP CRM, mySAP SCM, etc) and a collection of technology solutions (SAP Web AS, SAP BW, SAP EP, etc). The technology requirements for the business solutions did not end at SAP Web AS, they needed portal, data warehouse, knowledge management capabilities, etc to develop business solutions on.
To address this SAP made the decision to combine all the technology solutions and tools into one single platform. This made complete sense for developers (SAP, Partners and customers). This single platform is called SAP NetWeaver. It includes all the old individual components of SAP Web AS, SAP BW, SAP KM, SAP EP, etc).
~2004:
I think you can guess what the next step is. Yes, the new release of SAP R/3. Since the release of SAP R/3 Enterprise and the release of SAP NetWeaver, SAP R/3's name changes. It is now called mySAP ERP as it includes a lot of applications that were previously sold separately (like SAP SEM, MSS, ESS, etc).
So now mySAP ERP runs on SAP NetWeaver (yes everything that was in SAP Basis and then in SAP Web AS is still there but SAP NetWeaver has so much more now).
Also with the release of SAP NetWeaver, SAP starts to stop using the old technology component names - you will not hear us talk about SAP Web AS, SAP BW, etc anymore, just SAP NetWeaver releases.
In addition all the other SAP business applications also run on SAP NetWeaver, so the latest version of mySAP CRM, mySAP SRM, and mySAP SCM all run on SAP NetWeaver.
So to simplify the explanation, it would be :
Evolution of SAP R/3:
SAP R/3 (up to release 4.6c) -> SAP R/3 Enterprise (releases 1.00 through 2.00 -> mySAP ERP (2004 onward)
Evolution of Basis:
SAP Basis (up to release 4.6d) -> SAP Web AS (up to release 6.40 which was included in SAP NetWeaver '04) -> SAP NetWeaver (2004 onward)
SAP NetWeaver and mySAP ERP have their own release cycles. mySAP ERP always has an underlying technology release that it is built on (this is a SAP NetWeaver release)
I hope this helps,
Mike.

How can I know a class which implements Runnable interface has terminated?

Hello! I have a class which has implements Runnable interface, while I want to execute some operation when the thread has terminate in multithread enviroment.How can I know the thread has terminated?Does it give out some signal?Cant I just call my operation at the end of the run() method?

I want to execute some operation when
the thread has terminate in multithread enviroment....
Cant I just call my operation at the end
of the run() method?Sure. Before run() ends, invoke that other operation.
How
can I know the thread has terminated?Does it give out
some signal?Not that I'm aware of, but you can do what you described above, or I believe a different object can call isAlive on the thread.

Newbie needs advice on audio interface

just purchased iMac 27" with Lion...have nice sounding Taylor 810 accoustic...want to record guitar and vocals, strictly a hobby. need advice on audio interfaces...willing to spend $600 on the Duet 2.0 if it's as good as the web reviews say it is but???... will I hear a difference with a $250 interface like a presonus firestudio mobile (vs. $600 Duet 2)?... want something that sounds great and works well with GB/Lion....thanks

To be honest, if using mics, you will get more out of picking up the FireStudio Mobile and spending the difference (or more) on treating the room you will be recording and mixing in.
As far as Lion is concerned, just check with Presonus about compatibility.
If you pick up the FireStudioMobile, it ships with Studio One Artist. It has a better comping feature than GB does...
TBH, if this is strictly hobby stuff, by the time you treat your recording environment, pick up decent mics, a second hard drive, stands, cables, monitors, headphones, a handful of plugins, another DAW or two, furniture etc, etc, you will not be too concerned about ownng the FireStudio... Its a great little unit that is very reliable and has a solid build.

Clarification reg Domain Controller IP address change

Hi,
We are running on Windows MSCS Cluster (Primary / Secondary) for ECC Server.
The MSCS Cluster environment of ECC Server is a member of a Domain Controller.
We are planning to replace the Domain Controller, nevertheless all the settings / user names will remain the same.
The only thing will be changed is the IP Address.
For changing the IP address, we are planning to change the DNS and WINS IP address of the ECC Server accordingly.
Hence needs clarification on the following 2 points:
1. Is OS / SAP System Restart Required ??
For changing the DNS and WINS IP address of ECC Server,
whether the OS / SAP system has to be restarted ?
2. Effect on SAP System / Setting Change required on SAP
We would like to know whether there will be any issues with regard to SAP System Operation.
Especially we would like to know whether any setting changes needs to be done in the SAP System also.
Best Regards
Raghunahth L

Hi Anil,
Thanks for your reply.
That clears all my doubts.
Thanks to Eric and to you for spending your valuable time.
Best Regards
Raghunahth L

Reg: Servce Interface in PI 7.1

Hi Friends
I need some clarification regarding the service interface significance in PI 7.1. Actually we can multiple opertions option in SI. What is the eact use and functinality of this .
Thanks in Advance
Thanks&Regards
satya suman

For each operation in your Outbound SI you will have corresponding request Message Structure in which the request message arrives . Based on this request message, PI will decide which operation mapping & message mapping needs to be invoked.
Using new PI 7.1 as a WS provider - interface with multiple operations

Need Clarification reg Runnable interface

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