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

Media Data Atom TypesSprite Media Atom and Data TypeskSpriteImageDataRefAtomTypeAdd this atom as a child of the kSpriteImageAtomType atom instead of akSpriteImageDataAtomType. Its ID should be 1. Its data should contain the data reference (similar tothe dataRef parameter of GetDataHandler).kSpriteImageDataRefTypeAtomTypeAdd this atom as a child of the kSpriteImageAtomType atom. Its ID should be 1. Its data should containthe data reference type (similar to the dataRefType parameter of GetDataHandler).kSpriteImageDefaultImageIndexAtomTypeYou may optionally add this atom as a child of the kSpriteImageAtomType atom. Its ID should be 1.Its data should contain a short, which specifies an image index of a traditional image to use while waitingfor the referenced image to load.The following constants represent formats of a sprite track. The value of the constant indicates how overridesamples in a sprite track should be interpreted. You set a sprite track’s format by creating akSpriteTrackPropertySampleFormat atom.enum {kKeyFrameAndSingleOverride = 1L