Audio file not recorded through network

Question

Hi All,
I am trying to capture audio (wave) file from audio recording device and recording that.
I am able do that successfully in single computer, but when i am trying through network audio file is not created at server.
I am using file protocol for file location. and my JMF version JMF2.1.1e
Is RTP is required to solve above issue?
i used RTP also am able to transit audio, but its not recording....
Is there any other way to solve this problem?
Please provide me any code samples or reference documentation regarding this.
Thanks in advance
jbreddy

Answer 1

below mentioned code used in an applet to create audio file
===================================
import javax.media.protocol.DataSource;
import javax.media.protocol.FileTypeDescriptor;
import javax.media.protocol.ContentDescriptor;
import javax.media.control.TrackControl;
import javax.media.control.FormatControl;
import javax.media.rtp.event.*;
* <p>Title: </p>
* <p>Description: </p>
* <p>Copyright: Copyright (c) 2004</p>
* <p>Company: </p>
* @author not attributable
* @version 1.0
public class Media {
public Media(String fileName, int timeInterval) {
System.out.println(" Media fileName="+fileName);
CaptureDeviceInfo di = null;
Processor p = null;
StateHelper sh = null;
Vector deviceList = CaptureDeviceManager.getDeviceList(new AudioFormat(
"linear", 8000, 8, 1));
if (deviceList.size() > 0) {
di = (CaptureDeviceInfo) deviceList.elementAt(0);
else {
// Exit if we can't find a device that does linear,
// 44100Hz, 16 bit,
// stereo audio.
System.exit( -1);
try {
p = Manager.createProcessor(di.getLocator());
sh = new StateHelper(p);
catch (IOException e) {
e.printStackTrace();
System.exit( -1);
catch (NoProcessorException e) {
e.printStackTrace();
System.exit( -1);
// Configure the processor
if (!sh.configure(10000)) {
System.exit( -1);
// Set the output content type and realize the processor
p.setContentDescriptor(
new ContentDescriptor( ContentDescriptor.RAW_RTP));
TrackControl track[] = p.getTrackControls();
boolean encodingOk = false;
// Go through the tracks and try to program one of them to
// output gsm data.
/*for (int i = 0; i < track.length; i++) {
if (!encodingOk && track[i] instanceof FormatControl) {
if (((FormatControl)track).
setFormat( new AudioFormat(AudioFormat.GSM_RTP,
8000,
8,
1)) == null) {
track[i].setEnabled(false);
else {
encodingOk = true;
} else {
// we could not set this track to gsm, so disable it
track[i].setEnabled(false);
if (!sh.realize(10000)) {
System.exit( -1);
// get the output of the processor
DataSource source = p.getDataOutput();
// create a File protocol MediaLocator with the location of the
// file to which the data is to be written
String rtpPath="rtp://192.168.101.29:49150/audio";
MediaLocator dest = new MediaLocator( rtpPath +fileName);
// create a datasink to do the file writing & open the sink to
// make sure we can write to it.
DataSink filewriter = null;
try {
filewriter = Manager.createDataSink(source, dest);
filewriter.open();
catch (NoDataSinkException e) {
e.printStackTrace();
System.exit( -1);
catch (IOException e) {
e.printStackTrace();
System.exit( -1);
catch (SecurityException e) {
e.printStackTrace();
System.exit( -1);
// if the Processor implements StreamWriterControl, we can
// call setStreamSizeLimit
// to set a limit on the size of the file that is written.
StreamWriterControl swc = (StreamWriterControl)
p.getControl("javax.media.control.StreamWriterControl");
//set limit to 5MB
if (swc != null) {
swc.setStreamSizeLimit(5000000);
// now start the filewriter and processor
try {
System.out.println("filewriter="+filewriter);
filewriter.start();
catch (IOException e) {
e.printStackTrace();
System.exit( -1);
// Capture for 5 seconds
double time = timeInterval * 0.7 * 1000;
System.out.println("TIME INTERVAL ="+time+":INT ="+(int)time);
sh.playToEndOfMedia((int)time);
//sh.configure((int)time);
sh.close();
// Wait for an EndOfStream from the DataSink and close it...
filewriter.close();
public static void main(String args[]) {
     System.out.println("in side main method");
String fileName = "QQ";
for (int count = 0; count <= 10; count++) {
Media m = new Media(fileName+count+".wav", 2);