Inside Macintosh: QuickTime /

Chapter 4 - Movie Resource Formats / Atoms

Atom Types

Table 4-1 lists the atom types defined by Apple and their corresponding constants and atom names.

Table 4-1 Apple-defined atom types

Constant	Atom type	Atom name
MovieAID	'moov'	Movie atom
MovieHeaderAID	'mvhd'	Movie header atom
ClipAID	'clip'	Clipping atom
RgnClipAID	'crgn'	Clipping region atom
MatteAID	'matt'	Track matte atom
MatteCompAID	'kmat'	Compressed matte atom
TrackAID	'trak'	Track atom
UserDataAID	'udta'	User-defined data atom
TrackHeaderAID	'tkhd'	Track header atom
EditsAID	'edts'	Edit atom
EditsListAID	'elst'	Edit list atom
MediaAID	'mdia'	Media atom
MediaHeaderAID	'mdhd'	Media header atom
MediaInfoAID	'minf'	Media information atom
VideoMediaInfoHeaderAID	'vmhd'	Video media information header atom
SoundMediaInfoHeaderAID	'smhd'	Sound media information header atom
DataInfoAID	'dinf'	Data information atom
DataRefAID	'dref'	Data reference atom
SampleTableAID	'stbl'	Sample table atom
STSampleDescAID	'stsd'	Sample description atom
STTimeToSampAID	'stts'	Time-to-sample atom
STSyncSampleAID	'stss'	Sync sample atom
STShadowSyncAID	'stsh'	Shadow sync atom
STSampleToChunkAID	'stsc'	Sample-to-chunk atom
HandlerAID	'hdlr'	Handler reference atom
STSampleSizeAID	'stsz'	Sample size atom
STChunkOffsetAID	'stco'	Chunk offset atom

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