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

Some Useful Examples and ScenariosReferencing Two Data Files With a Single TrackIf there is only 1 sample per chunk and the first 10 samples are extracted from sample description 2 and thenext 30 samples are extracted from sample description 1, the sample-to-chunk atom would contain the followingdata values:Atom sizeAtom typeVersion/FlagsNumber of entriesFirst chunk[1]Samples per chunk[1]Sample description ID[1]First chunk[2]Samples per chunk[2]Sample description ID[2]40'stsc'021121111The data reference atom would contain the following data values:Atom sizeAtom type…'dinf'Atom sizeAtom typeVersion/FlagsNumber of entriesSize[1]Type[1]Version[1]Flags[1]Data reference[1]…'dref'02…'alis'00 (not self referenced)[alias pointing to file #1]2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.360