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16. QuickTime Player > Advanced QuickTime Pro: Track Tricks
Advanced QuickTime Pro: Track Tricks
As far as QuickTime Player is concerned, a piece of footage is nothing more than parallel tracks of information: audio and video. Most movies have only two tracks—one video and one audio—but there’s nothing to stop you from piling on multiple audio tracks, overlapping video tracks, and even specialized layers like a text track or an animation track.
The key to understanding the multiple simultaneous tracks in a QuickTime movie is the Movie Properties dialog box (Figure 16-9). It opens when you choose Window? Show Movie Properties (?-J).
Figure 16-9. The Movie Properties dialog box shows you all the parallel streams that go by when you play a movie: the various video, sound, and even text tracks. The Visual Settings tab is particularly useful for iMovie fans, because it lets you do things you can’t do in iMovie (like flip a movie 90 degrees).
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