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

Media Data Atom TypesNode Information Atom ContainerUInt32reserved2;} VRNodeHeaderAtom, *VRNodeHeaderAtomPtr;Field descriptionsmajorVersionThe major version number of the file format.minorVersionThe minor version number of the file format.nodeTypeThe node type. This field should contain either kQTVRPanoramaType or kQTVRObjectType.nodeIDThe node ID.nameAtomIDThe ID of the string atom that contains the name of the node. This atom should be a sibling of the nodeheader atom. The value of this field is 0 if no name string atom exists.commentAtomIDThe ID of the string atom that contains a comment for the node. This atom should be a sibling of thenode header atom. The value of this field is 0 if no comment string atom exists.reserved1Reserved. This field must be 0.reserved2Reserved. This field must be 0.Hot Spot Parent AtomThe hot spot parent atom is the parent for all hot spot atoms for the node. The atom type of the hot spotparent atom is kQTVRHotSpotParentAtomType ('hspa') and the atom type of the each hot spot atom iskQTVRHotSpotAtomType ('hots'). The atom ID of each hot spot atom is the hot spot ID for the correspondinghot spot. The hot spot ID is determined by its color index value as it is stored in the hot spot image track.The hot spot track is an 8-bit video track that contains color information that indicates hot spots. For moreinformation, refer to Programming With QuickTime VR.Each hot spot atom is the parent of a number of atoms that contain information about each hot spot.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.277