QuickTime 3 Reference

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Adding Video Effects to a QuickTime Movie

This section explains the steps you need to take in order to add video effects to a QuickTime movie. The process is straightforward enough. In brief, you proceed as follows:

1. You add a new effect track to your movie: the offset and duration of the track determine when the effect takes place.
2. You create an effect description that names the particular effect you want and supplies values for any parameters the effect has.
3. You create an input map that defines which tracks in the movie serve as sources for the effect.
4. Finally, you add the effect description as a new sample to the media of the effect track. As part of this process, you create a sample description , which describes the sample being added.

There are high-level routines that can be used to greatly simplify this process. QTCreateStandardParameterDialog can automatically obtain a list of available effects, allow the user to choose an effect and set its parameters, and return an effect description for the chosen effect.

How Effects Tracks Work In Your Movie

Creating an Effects Track

Creating an Effect Description

Creating an Input Map

Adding the Effect Description to the Track

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