Mobile TV DVB-H Receiver HAI Overview

Purpose

The Mobile TV DVB-H Receiver HAI (Hardware Adaptation Interface) is a component that abstracts DVB-H receiver hardware.

Required background

Mobile TV DVB-H Receiver HAI provides an programming interface between the receiver hardware and applications that use the data provided by that hardware.

DVB-H (Digital Video Broadcast-Handset) is the only mobile TV standard supported by the Symbian platform at the moment. This standard has been field tested in various locations between 2003 and 2007 and is already being rolled out as the content delivery platform for mobile TV in various regions. Full details are available from the DVB-H project web site.

Architectural relationship

Mobile TV Receiver HAI interacts with hardware through the Hardware Adaptation Layer (HAL) and abstracts hardware to mobile TV middleware. The diagramatic representation is shown below:

API summary

The Mobile TV DVB-H Receiver HAI component includes the following APIs:

• DVB-H Receiver API

  Used to access and control DVB-H receiver hardware. It provides scanning, tunning and data reception functionality.

  For more information about DVB-H Receiver API, see DVB-H Receiver API overview.

• DVB-H Receiver Information API

  This API is use to retrieve information about DVB-H receiver and DVB-H broadcasts. This API does not have any control of DVB-H receiver hardware but only provide information.

  For more information about DVB-H Receiver Information, see DVB-H Receiver Information API overview.

Typical uses

The Mobile TV DVB-H Receiver HAI component is used for the following:

• Starting and stopping the broadcast receiver

  To turn the receiver hardware on and off.

• Retrieving information

  To get information about the signal strength, state of the hardware and timing, amongst others.

• Configuring IP filters

  To allow the configuration and management of IP filters. IP filters are used to split the stream into its constituient parts.

• Managing data reception

  To allow the management of data reception.

• Starting signal scanning

  To initiate and control signal scanning on the hardware.

• Selecting IP Platform

  To select the IP platform used for tuning the hardware.