MPEG-21


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MPEG-21

(compression, standard, algorithm, file format)
A file format designed to merge very different things in one object, so you can store interactive material in this format (audio, video, questions, answers, overlays, non-linear order, calculation from user inputs, etc.)

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MPEG-21 Multimedia Framework, Part 7: Digital Item Adaptation (Final Committee Draft).
AXMEDIS Editor for MPEG-21 and SMIL, HTML, MPEG-4, O describing and distributing any kind of digital resource with DRM, CAS and more.
At its Annual Meeting in Montreal on 27 June, the MPEG-4 Industry Forum (M4IF), an industry-based MPEG standards advocacy group, unanimously approved expanding its scope to include the promotion of the MPEG-7 and MPEG-21 standards.
The Usage Environment Description (UED) is defined in Part 7 of MPEG-21, i.
The adoption of MPEG-7 [1] for describing metadata related to the digital items and of MPEG-21 [2] for describing metadata related to a governed content (i.
With its focus on interoperability and flexibility (Bormans & Hill, 2002), the emerging MPEG-21 framework is well suited to solve the outlined problem.
XML Schemas have been used to define metadata schemas for a number of specific domains or applications--such as METS (Library of Congress, 2003), MPEG-7 (Martinez, 2002), MPEG-21 (Bormans & Hill, 2002), and NewsML (IPTC, 2001).
Work on a new standard MPEG-21, Multimedia Framework, started in June 2000 and has already produced a Draft Technical Report and two Calls for Proposals.
This book provides a comprehensive examination of the use of MPEG-2, MPEG-4, MPEG-7, MPEG-21, and MPEG-A standards, providing a detailed reference to their application.
Three main initiatives should be identified: the CC/PP (Composite Capability/ Preference Profile) created by the W3C which defines an RDF-based framework for describing device capabilities and user preferences, the UAProf (User Agent Profile) of the Mobile Alliance Forum which provides an open vocabulary for WAP (Wireless Access Protocol) clients to communicate their capabilities to servers, and the Usage Environment Description (UED) tool included in MPEG-21 Digital Item Adaptation (DIA) which consists of a complete set of context descriptors for a multimedia adaptation scenario.
Next, 35 contributions from academics and practitioners address such topics as real-time synthesis and transformation of ambient sounds; new stream caching schemas for multimedia systems; and efficient delivery within the MPEG-21 framework.
MPEG-4, MPEG-21, ISMA) because this will facilitate interoperable commercial implementations of the solution, in particularly for Internet Streaming and IPTV.