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Timecode Media Handlers

Timecode media handlers allow QuickTime movies to store timing information derived from the movie’s original source material, such as SMPTE timecodes, as distinct from the time base data which is a part of any QuickTime movie.

Every QuickTime movie contains QuickTime-specific timing information, such as frame duration. This information affects how QuickTime interprets and plays the movie. The timecode media handler allows QuickTime movies to store additional timing information that is not created by or for QuickTime. This additional timing information would typically be derived from the original source material; for example, as a SMPTE timecode. In essence, you can think of the timecode media handler as providing a link between the “digital” QuickTime-specific timing information and the original “analog” timing information from the source material.

Contents:

Timecode Tracks
Timecode Samples
Timecode Media Handler Functions

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