Much of this book has assumed you already had media of some kind to play and edit—but where does this media come from in the first place? Digital media has to come from one of two places: either it’s completely synthetic or it’s captured from a real-world source. Capture, via devices like microphones and video cameras, is far more common.
The problem is that capture doesn’t officially work
in QuickTime for Java. The problem dates back to
Apple’s Java 1.4.1 rearchitecture, which broke QTJ
and forced massive changes to the API in QTJ 6.1. One of the things
that was not updated for QTJ was the ability to get an on-screen
component from a
SequenceGrabber, which is the
QuickTime capture component. Instead, Apple just put a statement in
the QTJ 6.1 documentation:
Although sequence grabbing is currently not supported in QuickTime for Java 1.4.1, it may be provided in future releases.
But if you think back to how the QTJ 6.1 situation was described in
Chapter 1, you might recall that QTJ classes
that didn’t require working with AWT—such as
quicktime.std classes that simply wrapped
straight-C calls—were unaffected by the Java 1.4.1 changes and
still worked. Given that, notice in the Javadoc the package called
quicktime.std.sg, which contains the
class among several others. Besides,
capture, per se, doesn’t necessarily imply using the
screen, so shouldn’t it still work?
The good news is that it does. In this chapter, I’ll introduce the parts of the capture ...