Get Delivering MPEG-4 Based Audio-Visual Services (Multimedia PDF

By Hari Kalva

ISBN-10: 0306469928

ISBN-13: 9780306469923

ISBN-10: 0792372557

ISBN-13: 9780792372554

Offering MPEG-4 established Audio-Visual prone investigates different facets of end-to-end multimedia companies; content material construction, server and repair supplier, community, and the end-user terminal. half I presents a finished advent to electronic video communications, MPEG criteria, and applied sciences, and bargains with approach point concerns together with standardization and interoperability, person interplay, and the layout of a disbursed video server. half II investigates the platforms within the context of object-based multimedia companies and provides a layout for an object-based audio-visual terminal, a few of these good points having been followed by means of the MPEG-4 structures specification. The publication is going directly to learn the necessities for a dossier structure to symbolize object-based audio-visual content material and the layout of 1 such structure. The layout introduces new techniques akin to direct streaming which are crucial for scalable servers. the ultimate a part of the publication examines the supply of object-based multimedia shows and provides optimum algorithms for multiplex-scheduling of object-based audio-visual shows, exhibiting that the audio-visual item scheduling challenge is NP-complete within the powerful feel. the matter of scheduling audio-visual gadgets is just like the matter of sequencing jobs on a unmarried laptop. The publication compares those difficulties and adapts job-sequencing effects to audio-visual item scheduling, and gives optimum algorithms for scheduling displays below source constraints, comparable to bandwidth (network constraints) and buffer (terminal constraints). additionally, the publication provides algorithms that reduce the assets required for scheduling displays and the auxiliary capability required to aid interactivity in object-based audio-visual displays. providing MPEG-4 dependent Audio-Visual companies is vital interpreting for researchers and practitioners within the parts of multimedia structures engineering and multimedia computing, community pros, carrier companies, and all scientists and technical managers attracted to the main up to date MPEG criteria and applied sciences.

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Extra info for Delivering MPEG-4 Based Audio-Visual Services (Multimedia Systems and Applications Volume 18)

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The conformance points A1 – A11 are the reference points and any DAVIC compliant system should be conformant at these points. 1 Information Flows and Reference Points The subsystems were specified in an evolutionary manner with each new set of DAVIC specifications adding functionality to the previous set. To facilitate this evolutionary approach, reference points, interfaces, and information flows were introduced between the subsystems. The information flow between the subsystems is divided into five logical flows based on the nature of the information.

A desirable solution is to have a set of tools that can be used to create a file optimised for the needs of the applications while allowing easy (computationally inexpensive) conversion between different instances (views) of the file. 2 IIF – A Format For MPEG-4 Media The complexity of MPEG-4, owing to the functionality it supports, makes it very demanding in terms of storage and access of multimedia objects that constitute an MPEG-4 presentation. MPEG-4 identified the need for a file format that can cater to the needs of MPEG-4 and possibly the multimedia industry.

Each elementary stream in an MPEG-4 presentation can potentially have a different clock speed. This puts additional burden on a terminal, as it now has to support recovery of multiple clocks. In addition to the scene description and object description streams, an MPEG-4 session can contain Intellectual Property Management and Protection (IPMP) streams to protect media streams, or Object Content Information (OCI) streams that describe the contents of the presentation, and a clock reference stream [20][64][110].

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Delivering MPEG-4 Based Audio-Visual Services (Multimedia Systems and Applications Volume 18) by Hari Kalva


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