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

Media Data Atom TypesNode Parent AtomNode Parent AtomNote 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.The node parent atom is the parent of one or more node ID atoms. The atom type of the node parent atom iskQTVRNodeParentAtomType ('vrnp') and the atom type of the each node ID atom is kQTVRNodeIDAtomType('vrni').There is one node ID atom for each node in the file. The atom ID of the node ID atom is the node ID of thenode. The node ID atom is the parent of the node location atom. The node location atom is the only child atomdefined for the node ID atom. Its atom type is kQTVRNodeLocationAtomType ('nloc').Node Location Atom StructureNote 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.The node location atom is the only child atom defined for the node ID atom. Its atom type iskQTVRNodeLocationAtomType ('nloc'). A node location atom describes the type of a node and its location.The structure of a node location atom is defined by the QTVRNodeLocationAtom data type:typedef struct VRNodeLocationAtom {UInt16UInt16OSTypeUInt32UInt32UInt32UInt32majorVersion;minorVersion;nodeType;locationFlags;locationData;reserved1;reserved2;} VRNodeLocationAtom, *QTVRNodeLocationAtomPtr;QTQT2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.273