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Old 01-14-2010, 04:10 PM   #1 (permalink)
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Default Voice Recording issues in Blackberry Storm.

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Hello All

I am facing recording issues in Blackberry storm series. The code is working fine in other models. But in 9500 series I am getting the problem. When I tested the application, I am always getting zero bytes. Also most of the times, Application is getting hanged because of Player component.

Below is the code I am using for this
Code:
import java.io.ByteArrayOutputStream;
import java.io.IOException;

import javax.microedition.media.Manager;
import javax.microedition.media.MediaException;
import javax.microedition.media.Player;
import javax.microedition.media.control.RecordControl;

import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;


public class VoiceRecorderComponent extends Thread  {
	private Player _player;
	private RecordControl _rcontrol;
	private ByteArrayOutputStream _output;
	private byte _data[];
	private int choice=-1;
	public static final long MAX_RECORDING_TIME = 30000;
	public static final int START_RECORDER = 0;
	public static final int PAUSE_RECORDER = 1;
	public static final int DESTROY_RECORDER = 2;
	public static final int RESUME_RECORDER = 3;
	public VoiceRecorderComponent() {
		_player=null;
		_rcontrol=null;
		_output=null;
		initRecorder();
	}



	public void setCommand(int choice) {
		this.choice = choice;
		switch (choice) {
		case START_RECORDER:
			
			start();
			
			break;
		case PAUSE_RECORDER:
		
			pauseRecording();
			break;
		case RESUME_RECORDER:
		
			resumeRecording();
			break;
		default:
			break;
		}
	}

	public int getCommand() {
		return choice;
	}

	public void initRecorder() {
		boolean _error = false;
		try {
			if (null == _player) {
				_player = Manager
						.createPlayer("capture://audio?encoding=audio/amr");				
				_player.prefetch();
				_player.realize();
				_rcontrol = (RecordControl) _player.getControl("RecordControl");
				_output = new ByteArrayOutputStream();
				_rcontrol.setRecordStream(_output);
				
			}
			System.err.println("Player Instance Created: "+_player);
		} catch (IOException error) {
			_error = true;
		} catch (IllegalArgumentException error) {
			_error = true;
		} catch (IllegalStateException error) {
			_error = true;
		} catch (SecurityException error) {
			_error = true;
		} catch (MediaException error) {
			_error = true;
		} catch (Throwable error) {
			error.printStackTrace();
			_error = true;

		}
	
	}

	

	public void run() {
		
		try {
			recordingScreen.updateFocusForBottomPanel(false);
			_player.start();
			_rcontrol.startRecord();
			
		} catch (MediaException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
	}

	public byte[] getVoiceNote() {
		return _data;
	}

	public void pauseRecording() {
		//recordingScreen.updateFocusForBottomPanel(true);
		_rcontrol.stopRecord();
		
				
	}

	public void resumeRecording() {
		try {
			//recordingScreen.updateFocusForBottomPanel(false);
			_rcontrol.startRecord();
			
		} catch (Exception e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		

	}

	public byte[] getVoiceBufferForPreview() {
		
			
				//_rcontrol.stopRecord();
				try {
					_output.flush();
					_data = _output.toByteArray();
					System.err.println("_data = _output.toByteArray();"+_data+" "+_data.length);
				} catch (IOException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}
				
				
		return _data;
	}

	public byte[] getVoiceBuffer() {
		_data = null;
		try {
			if (null != _player && null != _rcontrol) {
				_rcontrol.stopRecord();
				_rcontrol.commit();
				_output.flush();
				_data = _output.toByteArray();
			}
		} catch (IOException e) {
			e.printStackTrace();
		} catch (Exception e) {

			e.printStackTrace();
		}
		return _data;
	}

	public void destroyPlayer() {
		try {
			if (null != _player) {
				_player.stop();
				freeAudioBuffer();
				_player.close();
				_player = null;
				_rcontrol = null;
			}
		} catch (MediaException me) {

		} catch (IllegalStateException me) {

		} catch (Exception ex) {

		}
		_player = null;
		_rcontrol = null;
	}

	public void freeAudioBuffer() {
		try {
			if (null != _output) {
				_output.close();
				_output = null;
			}
		} catch (IOException ioe) {

			ioe.printStackTrace();
		} catch (Exception e) {

			e.printStackTrace();
		}
	}

	public int getVoiceBufferForTimeDisplay() {
		try {
			if (null != _player && null != _rcontrol) {
				_rcontrol.stopRecord();
			}
		} catch (Exception e) {

			e.printStackTrace();
		}
		return _output.size();
	}

	private void clearMemory() {
		try {
			System.gc();

		} catch (Throwable error) {
		}
	} 

}
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