OK, I've been determined to get tweens figured out, but my attempts
to apply the lessons of the docs <http://developer.apple.com/
documentation/QuickTime/Rm/MediaTypesAndHandlers/MHFundamentals/G-
Chapter%20copy%203/chapter_1000_section_3.html> result in movies with
tween tracks that don't actually do anything.
So, I ported the QTSndTween example <http://developer.apple.com/
samplecode/qtsndtween/listing2.html> to QTJ. All the original code
is commented in-line so you can see the line-by-line C-to-Java
translations. The example opens a movie and adds a 0-to-512 volume
tween. You might want to use it on a small movie (like 10 sec) to
get the effect. Like the original, it saves the new movie (with
tween) to disk, but also opens it in an AWT frame so you can play
it. Or, open the saved movie in QT Player and view properties to see
the tween track.
OK, coming up against the Apple listserv size limit. I zipped the
code to fit; hope this doesn't bounce.
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