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Overview Of Video On Demand Systems

Overview of Video On Demand Systems

Overview of Video On Demand Systems

Joseph Newcomer

SCOPE
INTRODUCTION
THE INITIATIVE FOR WORLDWIDE MULTIMEDIA TELECONFERENCING AND VIDEO
SERVER STANDARDS
NEW BUSINESS IMPERATIVES
STARTING WITH STANDARDS
TWO STANDARDS, ONE GOAL
STANDARDS FIRST
SUMMARY
CONTENT PREPARATION:
REQUIREMENTS:
CODECs/Compression
Object Oriented Database Management Systems
Encoding Verification
SUMMARY
VIDEO SERVER
REQUIREMENTS
LIMITATIONS
PRODUCTS
DISTRIBUTION NETWORK:
LAN TYPES
PROTOCOLS
WAN TYPES

SCOPE

    Video on demand has evolved as a major implementation problem for
network integrators. Clients want the ability to retrieve and view stored video
files asynchronously at near broadcast quality, on a local host. Some problems
integrators face to achieve this goal include: video content preparation, server
storage, network throughput, latency, client interfaces, quality of service, and
cost. This paper addresses the design considerations for a private video on
demand implementation.

INTRODUCTION

The Initiative for Worldwide Multimedia Teleconferencing and Video Server
Standards

The market for multipoint multimedia teleconferencing and video server equipment
is poised for explosive growth. The technology for this necessary and much-
anticipated business tool has been in development for years. By the turn of the
century, teleconferences that include any combination of video, audio, data, and
graphics will be standard business practice.

Compliance with teleconferencing standards will create compatible solutions from
competing manufacturers, feeding the market with a variety of products that work
together as smoothly as standard telephone products do today. Specifically, with
the adoption of International Telecommunications Union (ITU) recommendations
T.120, H.320 and H261, multimedia teleconferencing equipment manufacturers,
developers, and service providers will have a basic established connectivity
protocol upon which they can build products, applications, and services that
will change the face of business communications.

New Business Imperatives

Voice on Demand systems are starting to be required by commercial, industrial,
governmental and military associations to retrieve past information in order to
prepare and anticipate future events. This preparation and anticipation can be
crucial to the survival of these in

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