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MPEG-4 Book, The by Touradj Ebrahimi, Fernando Pereira

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Chapter 3. Object Description and Synchronization

by Carsten Herpel

Keywords: object description, stream description, OCI, IPMP, content access, synchronization, system decoder model

An MPEG-4 presentation may consist of many audiovisual objects that are conveyed through a number of audiovisual streams to a receiver, either in a truly streaming manner or stored in a file. An important task in structuring an MPEG-4 presentation is the description of all streams, including information such as media codecs, bit rates, and so on used to encode them as well as the relations between streams. Additional information about streams may be desired for semantic description or for implementing digital rights management. Further to the stream description, ...

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