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

Media Data Atom TypesNode Information Atom ContainerHot Spot Information AtomThe hot spot information atom contains general information about a hot spot. Its atom type iskQTVRHotSpotInfoAtomType ('hsin'). Every hot spot atom should have a hot spot information atom asa child.The structure of a hot spot information atom is defined by the QTVRHotSpotInfoAtom data type:typedef struct VRHotSpotInfoAtom {UInt16UInt16OSTypeQTAtomIDQTAtomIDSInt32Float32Float32Float32FloatPointRectUInt32UInt32UInt32majorVersion;minorVersion;hotSpotType;nameAtomID;commentAtomID;cursorID[3];bestPan;bestTilt;bestFOV;bestViewCenter;hotSpotRect;flags;reserved1;reserved2;} VRHotSpotInfoAtom, *QTVRHotSpotInfoAtomPtr;Field descriptionsmajorVersionThe major version number of the file format.minorVersionThe minor version number of the file format.hotSpotTypeThe hot spot type. This type specifies which other information atoms—if any—are siblings to this one.QuickTime VR recognizes three types: kQTVRHotSpotLinkType, kQTVRHotSpotURLType, andkQTVRHotSpotUndefinedType.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.278