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

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Movie AtomsOverview of Movie AtomsFigure 2-3 (page 44) shows the layout of the movie header atom. The movie header atom is a leaf atom.Figure 2-3The layout of a movie header atomBytesMovie header atomAtom size4Type = 'mvhd'4Version1Flags3Creation time4Modification time4Time scale4Duration4Preferred rate4abucdvxywa b uc d vx y wPreferred volumeReservedMatrix structurePreview timePreview duration2103644Poster time4Selection time4Selection duration4Current time4Next track ID4You define a movie header atom by specifying the following data elements.SizeA 32-bit integer that specifies the number of bytes in this movie header atom.TypeA 32-bit integer that identifies the atom type; must be set to 'mvhd'.VersionA 1-byte specification of the version of this movie header atom.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.44
Movie AtomsOverview of Movie AtomsFlagsThree bytes of space for future movie header flags.Creation timeA 32-bit integer that specifies the calendar date and time (in seconds since midnight, January 1, 1904)when the movie atom was created. It is strongly recommended that this value should be specified usingcoordinated universal time (UTC).Modification timeA 32-bit integer that specifies the calendar date and time (in seconds since midnight, January 1, 1904)when the movie atom was changed. BooleanIt is strongly recommended that this value should be specifiedusing coordinated universal time (UTC).Time scaleA time value that indicates the time scale for this movie—that is, the number of time units that pass persecond in its time coordinate system. A time coordinate system that measures time in sixtieths of a second,for example, has a time scale of 60.DurationA time value that indicates the duration of the movie in time scale units. Note that this property is derivedfrom the movie’s tracks. The value of this field corresponds to the duration of the longest track in themovie.Preferred rateA 32-bit fixed-point number that specifies the rate at which to play this movie. A value of 1.0 indicatesnormal rate.Preferred volumeA 16-bit fixed-point number that specifies how loud to play this movie’s sound. A value of 1.0 indicatesfull volume.ReservedTen bytes reserved for use by Apple. Set to 0.Matrix structureThe matrix structure associated with this movie. A matrix shows how to map points from one coordinatespace into another. See “Matrices” (page 320) for a discussion of how display matrices are used in QuickTime.Preview timeThe time value in the movie at which the preview begins.Preview durationThe duration of the movie preview in movie time scale units.Poster timeThe time value of the time of the movie poster.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.45
Page 1 and 2: QuickTime File FormatSpecification
Page 4 and 5: ContentsReference Movie Atom 120Ref
Page 6 and 7: ContentsSprite Track Property Atoms
Page 8 and 9: ContentsSome Useful Examples and Sc
Page 10 and 11: ContentsAudio Sample Rate for a Sam
Page 12 and 13: Figures, Tables, and ListingsFigure
Page 14 and 15: Figures, Tables, and ListingsFigure
Page 16 and 17: Figures, Tables, and ListingsTable
Page 18 and 19: Introduction to QuickTime File Form
Page 20 and 21: Overview of QTFFQuickTime movies ar
Page 22 and 23: Overview of QTFFAtomsAtom LayoutFig
Page 24 and 25: Overview of QTFFQT Atoms and Atom C
Page 30 and 31: Overview of QTFFQuickTime Movie Fil
Page 38 and 39: Movie AtomsOverview of Movie AtomsO
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Page 42 and 43: Movie AtomsOverview of Movie AtomsC
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Page 54 and 55: Movie AtomsTrack AtomsPrint to Vide
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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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Media Data Atom TypesHint Media●
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Media Data Atom TypesHint MediaMovi
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Media Data Atom TypesHint Sample Da
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Media Data Atom TypesHint Sample Da
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Media Data Atom TypesPacketization
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Media Data Atom TypesVR Media} QTVR
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Media Data Atom TypesVR MediaUInt32
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Media Data Atom TypesVR Mediareserv
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Media Data Atom TypesCustom Cursor
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Media Data Atom TypesNode Informati
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Media Data Atom TypesQuickTime VR F
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Media Data Atom TypesQuickTime VR F
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Media Data Atom TypesQTVR TrackImpo
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Media Data Atom TypesPanorama Track
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Media Data Atom TypesCubic Panorama
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Media Data Atom TypesHot Spot Image
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Media Data Atom TypesObject TracksT
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Media Data Atom TypesObject Tracksd
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Media Data Atom TypesObject Tracksk
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Media Data Atom TypesObject Tracksk
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Media Data Atom TypesMovie MediaFor
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Media Data Atom TypesMovie MediaNot
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Media Data Atom TypesMovie MediakMo
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Basic Data TypesThis chapter descri
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Basic Data TypesLanguage Code Value
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Basic Data TypesCalendar Date and T
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Basic Data TypesRGB ColorsTable 5-3
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Some Useful Examples and ScenariosT
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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 ScenariosG
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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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