Q: I am creating a movie with multiple video tracks of different sizes and
aspect ratios. Currently, QuickTime is displaying the parts of the movie
outside of the current track's display region in white. Is there a way of
giving the entire movie a background color (e.g, black)?
A: Yes. You can simply create another track with a duration equal to the movie
duration, and set the track layer value for this track higher than any of
the other movie tracks. Then, when the movie is played, the other movie
tracks will draw over the top of the background track (because the
background track has a higher layer value) and any uncovered areas will show
the black background track.
Note that this background track could be a video track consisting of a single
background image whose duration is the same as the movie. You need not
create a video track consisting of a number of identical frames whose
durations sum to the entire movie duration.
[Aug 16 1999]
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