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

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Media Data Atom TypesObject TracksThe number of entries in the track reference array atom is determined by dividing the size of the atom bysizeof (QTVRTrackRefEntry).kQTVRPreviewTrackRes is a special value for the trackResolution field in the QTVRTrackRefEntrystructure. This is used to indicate the presence of a special preview image track.Object TracksNote VR Media is deprecated in the QuickTime file format. The information that follows is intendedto document existing content containing VR Media and should not be used for new development.A movie’s object track is a track that contains information about the object nodes in a scene. The media typeof the object track is 'obje'. Each sample in an object track corresponds to a single object node in the scene.The samples of the object track contain information describing the object images stored in the object imagetrack.These object information samples parallel the corresponding node samples in the QTVR track and are equalin time and duration to a particular object node’s image samples in the object’s image track as well as theobject node’s hot spot samples in the object’s hot spot track.Object tracks do not have a sample description (although QuickTime requires that you specify a dummy sampledescription when you call AddMediaSample to add a sample to an object track). The sample itself is an atomcontainer that contains a single object sample atom and other optional atoms.Object Sample Atom Structureobject sample atom describes a single object, including information about the default viewing angles and theview settings. The structure of an object sample atom is defined by the QTVRObjectSampleAtom data type:typedef struct VRObjectSampleAtom {UInt16UInt16UInt16UInt16UInt16UInt16UInt32majorVersion;minorVersion;movieType;viewStateCount;defaultViewState;mouseDownViewState;viewDuration;2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.302
Media Data Atom TypesObject TracksUInt32UInt32Float32Float32Float32Float32Float32Float32Float32Float32Float32Float32Float32Float32Float32Float32UInt32UInt32columns;rows;mouseMotionScale;minPan;maxPan;defaultPan;minTilt;maxTilt;defaultTilt;minFieldOfView;fieldOfView;defaultFieldOfView;defaultViewCenterH;defaultViewCenterV;viewRate;frameRate;animationSettings;controlSettings;} VRObjectSampleAtom, *VRObjectSampleAtomPtr;QTQTQTField descriptionsmajorVersionThe major version number of the file format.minorVersionThe minor version number of the file format.movieTypeThe movie controller type.viewStateCountThe number of view states of the object. A view state selects an alternate set of images for an object’sviews. The value of this field must be positive.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.303
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QuickTime File FormatSpecification
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ContentsReference Movie Atom 120Ref
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ContentsSprite Track Property Atoms
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ContentsSome Useful Examples and Sc
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ContentsAudio Sample Rate for a Sam
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Figures, Tables, and ListingsFigure
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Figures, Tables, and ListingsFigure
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Figures, Tables, and ListingsTable
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Introduction to QuickTime File Form
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Overview of QTFFQuickTime movies ar
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Overview of QTFFAtomsAtom LayoutFig
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Overview of QTFFQT Atoms and Atom C
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Overview of QTFFQuickTime Movie Fil
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Movie AtomsOverview of Movie AtomsO
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Movie AtomsOverview of Movie AtomsN
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Movie AtomsOverview of Movie AtomsC
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Movie AtomsOverview of Movie AtomsF
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Movie AtomsOverview of Movie AtomsS
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Movie AtomsOverview of Movie AtomsF
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Movie AtomsOverview of Movie AtomsL
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Movie AtomsOverview of Movie AtomsA
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Movie AtomsTrack AtomsPrint to Vide
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Movie AtomsTrack AtomsNote Figure 2
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Movie AtomsTrack AtomsFigure 2-7 (p
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Movie AtomsTrack AtomsAlternate gro
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Movie AtomsTrack AtomsAlthough the
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Movie AtomsTrack AtomsFigure 2-10 (
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Movie AtomsTrack AtomsRegion sizeTh
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Movie AtomsTrack AtomsNote If the e
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Movie AtomsTrack AtomsTrack Input M
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Movie AtomsTrack AtomsInput typeA 3
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Movie AtomsMedia AtomsMedia atoms c
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Movie AtomsMedia AtomsTime scaleA t
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Movie AtomsMedia AtomsHandler Refer
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Movie AtomsMedia AtomsNote “Using
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Movie AtomsMedia AtomsOpcolorThree
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Movie AtomsMedia AtomsMedia types t
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Movie AtomsMedia AtomsFlagsA 3-byte
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Movie AtomsMedia AtomsData referenc
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Movie AtomsSample AtomsSamples are
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Movie AtomsSample AtomsFigure 2-33
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Movie AtomsSample AtomsThe sample d
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Movie AtomsSample AtomsSizeA 32-bit
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Movie AtomsSample AtomsNote At the
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Movie AtomsSample AtomsSizeA 32-bit
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Movie AtomsSample AtomsVersionA 1-b
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Movie AtomsSample AtomsNote The sam
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Movie AtomsSample AtomsSample depen
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Movie AtomsCompressed Movie Resourc
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Movie AtomsReference MoviesApplicat
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Movie AtomsReference MoviesData ref
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Movie AtomsReference MoviesCPU Spee
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Movie AtomsReference MoviesFlagsA 3
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MetadataThis chapter describes how
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MetadataMetadata StructureFigure 3-
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MetadataExtensibilityTypeA 32-bit u
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MetadataLanguage List AtomField Siz
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MetadataMetadata Item Keys AtomThis
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MetadataMetadata Item AtomFigure 3-
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MetadataLocale IndicatorValueotherw
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MetadataData Atom StructureNameAn a
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MetadataLocation MetadataLocation M
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MetadataQuickTime Metadata KeysKeyK
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Media Data Atom TypesQuickTime uses
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Media Data Atom TypesVideo MediaCom
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Media Data Atom TypesVideo MediaCol
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Media Data Atom TypesVideo MediaDes
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Media Data Atom TypesVideo MediaThe
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Media Data Atom TypesVideo MediaSch
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Media Data Atom TypesVideo MediaTab
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Media Data Atom TypesVideo MediaNot
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Media Data Atom TypesSound MediaSou
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Media Data Atom TypesSound MediaThe
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Media Data Atom TypesSound Mediaaud
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Media Data Atom TypesSound MediaTyp
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Media Data Atom TypesSound MediaThe
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Media Data Atom TypesTimecode Media
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Media Data Atom TypesTimecode Media
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Media Data Atom TypesText MediaDisp
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Media Data Atom TypesText MediaFore
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Media Data Atom TypesClosed Caption
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Media Data Atom TypesSubtitle Media
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Media Data Atom TypesMusic Media●
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Media Data Atom TypesSprite MediaSp
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Media Data Atom TypesSprite Track P
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Media Data Atom TypesSprite Track M
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Media Data Atom TypesSprite Track M
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Media Data Atom TypesSprite Media A
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Media Data Atom TypesSprite Media A
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Media Data Atom TypesSprite Button
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Media Data Atom TypesSprite Media H
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Media Data Atom TypesSprite Media H
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Media Data Atom TypesWired Action G
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Media Data Atom TypesFlash MediakAc
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Media Data Atom TypesTween MediaTwe
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Media Data Atom TypesTween Media●
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Media Data Atom TypesTween MediakTw
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Media Data Atom TypesTween MediaTwe
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Media Data Atom TypesTrack Referenc
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Media Data Atom TypesStreaming Medi
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Page 316 and 317: Basic Data TypesThis chapter descri
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Some Useful Examples and ScenariosC
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Some Useful Examples and ScenariosC
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Some Useful Examples and ScenariosP
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Some Useful Examples and ScenariosI
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Some Useful Examples and ScenariosG
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Some Useful Examples and ScenariosA
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Some Useful Examples and ScenariosO
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Some Useful Examples and ScenariosO
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QuickTime Image File FormatNote The
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QuickTime Image File FormatRecommen
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Defining Media Data LayoutsUsing Qu
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Random AccessSeeking With a QuickTi
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Metadata HandlingDigital Audio File
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Metadata HandlingStill Image File F
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Summary of VR World and Node Atom T
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Profile Atom GuidelinesProfile Atom
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Profile Atom GuidelinesProfile Atom
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Profile Atom GuidelinesUniversal Fe
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Audio Priming - Handling Encoder De
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Document Revision HistoryDate2011-0
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GlossaryAAC Advanced Audio Coding (
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Glossaryfile preview A thumbnail pi
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Glossarymedia’s data. The data ha
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GlossaryPCM Pulse-code modulation (
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Glossarytrack A Movie Toolbox data
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Apple Inc.© 2004, 2012 Apple Inc.A
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