User guide

16 Chapter 2

Overview

Version 3.1

Specifications

4Sight is an MPEG-4 compliant server that broadcasters and cable

operators can use to manage and distribute interactive multimedia content

through IP networks to EnvivioTV

or any other MPEG-4 compliant

player.

4Sight consists of three components:

• The Streaming Server for video on demand, relaying, and reflecting.

• The Playlist Broadcaster that can broadcast a list of MPEG-4 files,

which can then be reflected by the streaming server.

• The WebAdmin for web-based administration and monitoring.

Supporting Standards and Platforms

4Sight can stream any MPEG-4 file that conforms to the ISO standard,

whether the file is generated by the Envivio 4Coder or some other MPEG-

4 encoding tool.

4Sight sends media to the network using the IETF defined suite of

protocols based on IP for real-time streaming, and supports HTTP

tunneling to support firewall configurations. It also uses the associated

IETF recommendations dedicated to MPEG-4 transport over IP.

4Sight supports unicast streaming for media on demand, and multicast

streaming for media broadcasts. It also includes a playlist manager to

broadcast a list of MPEG-4 files. Multiple streaming redirection

configurations allow flexible network setup.