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Creating a Reference Movie

A reference movie contains a list of movie URLs, each of which has a list of tests, as show in Figure 8-4. When opening the reference movie, a playback device or computer chooses one of the movie URLs by finding the last one that passes all its tests. Tests can check the capabilities of the device or computer and the speed of the network connection.

If you use QuickTime Pro 7.2.1 to export your movies for iPhone, as described in “Using QuickTime Pro 7.2.1,” then you already have a reference movie. Otherwise, you can use the MakeRefMovie tool to create reference movies. You can download the tool from:

• http://developer.apple.com/quicktime/quicktimeintro/tools

Also, refer to the MakeiPhoneRefMovie sample for a command-line tool that creates reference movies.

For more details on reference movies and instructions on how to set them up see “Applications and Examples” in HTML Scripting Guide for QuickTime.

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