Quicktime File Format (2012-08-14).pdf

Movie AtomsTrack AtomsClipping atomSee “Clipping Atoms” (page 66) for more information.Track matte atomSee “Track Matte Atoms” (page 68) for more information.Edit atomSee “Edit Atoms” (page 69) for details.Track reference atomSee “Track Reference Atoms” (page 73)” for details.Track exclude from autoselection atomSee “Track Exclude From Autoselection Atoms” (page 61) for details.Track load settings atomSee “Track Load Settings Atoms” (page 71) for details.Track input map atomSee “Track Input Map Atoms” (page 76)” for details.Media atomSee “Media Atoms” (page 79) for details.User-defined data atomSee “User Data Atoms” (page 47) for more information.Track Profile AtomNote Profile atoms are deprecated in the QuickTime file format. The information that follows isintended to document existing content containing profile atoms and should not be used for newdevelopment.Profile atoms can be children of movie atoms or track atoms. For details on profile atoms, see “The MovieProfile Atom” (page 42).Track Header AtomsThe track header atom specifies the characteristics of a single track within a movie. A track header atom containsa size field that specifies the number of bytes and a type field that indicates the format of the data (definedby the atom type 'tkhd').2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.57