Error Msg Prompted when exit a Video Capture applet

Question

I converted a sample Video Capture App to a applet, when i stoped capturing and exit, this massage prompted:
"The instruction at '0X05a82f30' referernced memory at '0x05aa20f8', The memory could not be 'read'. Click on OK to ternimate the program".
This app will write the captured video file onto local disk, but i've setted the security options in JMF Preference config.
I just wonder why this error message occur?
i'm now working on this applet for my JSP page, i want users can captrue pictures from the WebCam and then save as JPEG images.
I realy appreciate it if any guys can give me some suggestion?

Answer 1

I also writing a applet to do that. But I can work in application model. When I run it in browser . It throw out an error. Following is my code....
FrameGrabbingControl fgc = (FrameGrabbingControl) player.getControl("javax.media.control.FrameGrabbingControl");
tt.setText(fgc.toString()+"\r\n");
Buffer buf = fgc.grabFrame();
tt.append(buf.toString()+"\r\n");
BufferToImage btoi = new BufferToImage((VideoFormat)buf.getFormat());
tt.append(btoi.toString()+"\r\n");
java.awt.image.BufferedImage img = (java.awt.image.BufferedImage)btoi.createImage(buf);
tt.append(img.toString()+"\r\n");
try {
File file = new File("c:\\Testing.jpg");
FileOutputStream out = new FileOutputStream(file);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam param = encoder.getDefaultJPEGEncodeParam(img);
param.setQuality(0.7f, false);
encoder.setJPEGEncodeParam(param);
//encoder.encode(buffImg);
encoder.encode(img);
out.close();
} catch (Exception ex) {
ex.printStackTrace();