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Image Capture Questions

Hi, Java Quicktime List,

I'm working on some image processing using quicktime and have run into
a few problems. I'm using the SGDataProcDemo on the java-quicktime
site as a starting place. As some background, I'm using Windows 2000
and a firewire webcam. If anyone has any suggestions to the following
questions/issue, I would really appreciate it:

1) In the demo there are the following lines of code in the callback
method named execute:

DSequence myDSequence =
new DSequence(
sgImageDescription,
encodedImage,
targetGraphics,
sourceRect,
transformationMatrix,
null,
0,
StdQTConstants.codecNormalQuality,
CodecComponent.anyCodec);

For some reason, the program seems to get stuck in this constructor.
Does anyone know why?

2) As a work around, I commented out all the DSequence stuff in the
demo and tried to use the RawEncodedImage that is one of the arguments
when execute is called. I hope that this is the frame that was
captured by the camera. My problem is turning the RawEncodedImage into
a Java Image. I tried a variety of ways of instantiating an
ImagePresenter from the image, which seems to work, but when I try to
create an QTImageProducer, the program stops progressing past that
point. Instead, it seems to restart as if execute were being called
again. My hope is to do the follwing eventually:

Image image = Toolkit.getDefaultToolkit().createImage
(myQTImageProducer);

When I can do this, I hope to use the PixelGrabber to get the pixel
data. If there's another way to do this, I'm more than open to trying
it.

Thanks,
Dennis
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