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QuickTime Movie File Format Specification, May 1996
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QuickTime Movie File Format Specification, May 1996
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Tween media is used to store pairs of values to be interpolated between in QuickTime movies. These interpolated values modify the playback of other media types by using track references and track input maps. For example, a tween media can generate gradually-changing relative volume levels to cause an audio track to fade out. It has a media type of 'twen' .
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