Broadcast Architecture Subsystems Overview

[This is preliminary documentation and subject to change.]

The broadcast client consists of a number of functional subsystems. These subsystems provide the capabilities needed to receive and use audio, video, and other data from a broadcast server on a client running the Microsoft® Windows® 98 operating system.

The following illustration shows an overview of the Broadcast Architecture subsystems.

Of the components in these subsystems, some are supplied with Broadcast Architecture, and others come from the Microsoft® Windows® 98 operating system or third party developers. In order to give a complete overview of the broadcast client, the following sections briefly describe all components regardless of their source. The subsystems covered are:

• Broadcast Data Receiver Subsystem describes the components that receive data and pass it on to the other subsystems.
• Data Services Subsystem describes the components that process the computing data within the broadcast data stream, in other words, the data that does not present audio or video.
• Broadcast Client Presentation Subsystem describes the Microsoft® DirectShow™ filter graph used in a broadcast client and the components that present audio and video.
• Television Client Services Subsystem describes components for configuring and controlling television channels.
• WebTV for Windows Subsystem describes Microsoft WebTV for Windows and its components.