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Metaglue Reference
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Reference
 
Glossary
 
 


Definitions:
  • AAF - Advanced Authoring Format
    A file format that wraps essence and metadata together to encapsulate an entire media project with all information and content.
    www.amwa.tv
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  • Essence
    The media used within a project, as distinct form the metadata.
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  • KLV - Key Length Value
    A method of encoding metadata, the key tells you what the meaning of the value is, the length tells the length of the value and the value is the actual data. Diffuser is designed to manage the meanings of the keys and distribute the meanings to other users.
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  • MXF - Material Exchange Format
    A file format designed to pass program streams and associated metadata.
    http://www.freemxf.org/
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  • Metadata
    Data about data.
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  • Metadata Dictionary
    A repository of all the meanings of metadata keys. This is required so that the meaning of an individual piece of metadata is consistent.
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  • Metadata Register
    Another name for Metadata Dictionary. The SMPTE Metadata Registry is at
    www.smpte-ra.org/mdd/
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  • Mob - Metadata Object
    A data structure that holds the metadata for a piece of program material and labels it with a unique identifier.
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  • Schema
    The formal structure of data. Often used in referring to the structure of an XML document.
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  • SMPTE - Society for Motion Picture and Television Engineers
    The internationally recognized standards-making body for this industry.
    www.smpte-ra.org
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  • Wrapper
    A file format such as AAF that wraps up information from several sources into one file.
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  • XML - eXtensible Markup Language
    A widely used standard from the World Wide Web Consortium (W3C) that facilitates the interchange of data between computer applications. XML documents are in plain text and therefore can be read by humans as well as computers, albeit sometimes with difficulty.
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  • Synonym
    A link between two entries in the Metadata Dictionary that mean exactly or nearly the same.
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  • UL - Universal Label
    A 16 byte number that is used in several ways. A particular subset of ULs is used as a key in KLV encoding.
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