I have created a frame in which there is an internal jframe showing inside it. What i want to do is use the JMF video playback displaying in the internal frame not the main frame. Currently when i run the program the video plays over the whole frame. all i want it to do is play within the internalJFrame. And with me testing out the code before i added video both frames display so i know that showing both frames isn't the problem. the problem is showing the video inside the internal frame.
Code:
import javax.media.*;
import javax.swing.*;
import java.awt.*;
import java.net.*;
import java.awt.event.*;
import javax.swing.event.*;
import java.io.File;
import java.net.MalformedURLException;
import java.net.URL;

public class Internal extends JFrame
{
	private JPanel mainPanel;
	Player _player;
	JFileChooser fileChooser;

	public Internal()
	{

		mainPanel = new JPanel();
		getContentPane().add(mainPanel);
		mainPanel.setLayout(null);

		addWindowListener( new WindowAdapter(){
			public void windowClosing( WindowEvent e)
			{
				_player.stop();
				_player.deallocate();
				_player.close();
				System.exit(0);
			}
		});





		JInternalFrame f1 = new JInternalFrame("Preview",
												true,
												true,
												true,
												true);
		f1.setBounds(810,20,500,370);

		JPanel panel =(JPanel)getContentPane();
		panel.setLayout(new BorderLayout());
		String mediaFile = "DD.avi";
		try{
			// Video code
		}
		catch (Exception e) {
			System.err.println("Got exception" + e );

		//getContentPane().add(panel);

		f1.getContentPane().add(panel);

		mainPanel.add(f1);
		f1.setVisible(true);

		setTitle("Internal Demo");
		setLocationRelativeTo(null);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setVisible(true);
		this.setExtendedState(Frame.MAXIMIZED_BOTH);
	}
}
	public static void main(String[] args)
	{
		Internal in = new Internal();
		in.show();
	}

}