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

MetadataLanguage List AtomField SizeFieldField ContentsComment32-bitatom_type'ctry’32-bitentry_count2Number of country lists.16-bitcountry_count2Number of countries in country list 1.16-bitcountry'US’16-bitcountry'UK’16-bitcountry_count3Number of countries in country list 2.16-bitcountry'JP’16-bitcountry'US’16-bitcountry'FR’Language List AtomWhen one or more items must be identified as being suitable for more than one language, each list of languagesis stored in this otherwise optional atom. The language list atom is a full atom with an atom type of ‘lang’.Each list starts with a 2-byte count of the number of items in the list, and then each ISO 639-2/T code, packedinto two bytes, according to the ISO Language Code definition in the MP4 specification.The atom consists of a count of the number of lists, expressed as a 32-bit integer, and then these lists, appendedend-to-end. The language list atom contains the following fields:SizeA 32-bit unsigned integer that indicates the size in bytes of the atom structureTypeA 32-bit unsigned integer value set to 'lang'VersionOne byte that is set to 0.FlagsThree bytes that are set to 0.Entry_countA 32-bit integer indicating the number of language arrays to follow in this atom.2012-08-14 | © 2004, 2012 Apple Inc. All Rights Reserved.134