Same problem here. Here is my attempt at demonstrating this and also logging all "playerUpdate" data.
The program records into a byte-array and then plays it successfully.
When trying to record and play and the same time things do not work. The log clearly shows the interference between the two playes.
Is this something that I should expect to work. Any interfaces I am missing to play and record audio in full-duplex?
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import javax.microedition.media.Manager;
import javax.microedition.media.Player;
import javax.microedition.media.PlayerListener;
import javax.microedition.media.control.RecordControl;
import net.rim.device.api.ui.Font;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.ButtonField;
import net.rim.device.api.ui.component.Dialog;
import net.rim.device.api.ui.component.RichTextField;
import net.rim.device.api.ui.container.MainScreen;
public class RecordAndPlay extends UiApplication{
private byte[] _bytesRecorded = null;
private byte[] _bytesToPlay = null;
private MainMenuScreen _screen = null;
public static void main(String argv[])
{
new RecordAndPlay();
}
public RecordAndPlay()
{
try
{
pushScreen(_screen = new MainMenuScreen());
enterEventDispatcher();
} catch (IOException e)
{
_screen.reportException(e);
}
}
class AudioRecorder extends Thread implements PlayerListener
{
public void run()
{
try
{
Player playerR = Manager.createPlayer("capture://audio?encoding=audio/amr");
playerR.addPlayerListener(this);
playerR.realize();
RecordControl recordControl = (RecordControl) playerR.getControl("RecordControl");
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
recordControl.setRecordStream(outputStream);
Manager.playTone(69, 500, 100);
Thread.sleep(500);
recordControl.startRecord();
playerR.start();
Thread.sleep(5000);
recordControl.commit();
_bytesRecorded = outputStream.toByteArray();
outputStream.close();
playerR.close();
synchronized (_screen)
{
_screen.notify();
}
} catch (Exception e)
{
_screen.reportException(e);
}
}
public void playerUpdate(Player player, final String event, Object eventData)
{
_screen.log("R-" + event + "[" + (eventData == null ? "" : eventData.toString()) + "]");
}
}
class AudioPlayer extends Thread implements PlayerListener
{
public void run()
{
try
{
_bytesToPlay = new byte[_bytesRecorded.length];
System.arraycopy(_bytesRecorded, 0, _bytesToPlay, 0, _bytesRecorded.length);
ByteArrayInputStream inputStream = new ByteArrayInputStream(_bytesToPlay);
Player playerP = Manager.createPlayer(inputStream, "audio/amr");
playerP.addPlayerListener(this);
playerP.realize();
playerP.prefetch();
playerP.start();
Thread.sleep(5000);
playerP.stop();
playerP.close();
synchronized (_screen)
{
_screen.notify();
}
} catch (Exception e)
{
_screen.reportException(e);
}
}
public void playerUpdate(Player player, String event, Object eventData)
{
_screen.log("P-" + event + "[" + (eventData == null ? "" : eventData.toString()) + "]");
}
}
class MainMenuScreen extends MainScreen
{
private ButtonField _buttonField = new ButtonField("Start");
private RichTextField _logField = new RichTextField();
private long _tStart;
public MainMenuScreen() throws IOException
{
super();
_tStart = System.currentTimeMillis();
add(_buttonField);
Font f = _logField.getFont();
_logField.setFont(f.derive(f.getStyle(), f.getHeight() * 3 / 5));
add(_logField);
}
public void log(final String sValue)
{
UiApplication.getUiApplication().invokeLater(new Runnable()
{
public void run()
{
long t = System.currentTimeMillis() - _tStart;
_logField.insert("[" + ((t / 1000) + "." + t % 1000) + "] " + sValue + "\n");
}
});
}
protected boolean navigationClick(int status, int time)
{
Thread r = new Thread()
{
public void run()
{
try
{
synchronized (_screen)
{
log("Recording");
(new AudioRecorder()).start();
_screen.wait();
log("Playing");
(new AudioPlayer()).start();
_screen.wait();
log("Recording & Playing");
(new AudioRecorder()).start();
(new AudioPlayer()).start();
_screen.wait();
_screen.wait();
// log("Playing again");
// (new AudioPlayer()).start();
// _screen.wait();
}
} catch (Exception e)
{
reportException(e);
}
}
};
r.start();
return true;
}
void reportException(final Exception e)
{
UiApplication.getUiApplication().invokeAndWait(new Runnable()
{
public void run()
{
log("Exception " + e.getMessage());
Dialog.inform(e.toString());
}
});
}
}
}
(found it through generic search)
