DTVKit is designed to be split into several different components. At the moment DTVKit contains the following components:

The first component which we will deal with is the application, see below on how it fits with the other components:

The application which we provide is for test purposes and it contains components that are required to exercise some of the other components. It contains the following:

• QT Browser - This contains a glue to enable a QT browser to be plugged into the application.
• HW Abstraction Layer (Linux) - This contains the source of a Linux port.
• User Interface - The user interface contains the following:-
  • Screens - These are screens sc_*.c/h which are used as a UI for the DVBCore so that the DVBCore/HbbTV can be exercised. These screens are a generic implementation and are mainly used for testing. They communicate with the UI engine when something is required to be displayed to the User.
  • UI Engine - This contains a UI Engine for displaying a full set top box graphical User Interface.
  • Font - This contains a interface to the Freetype font library and API to the UI Engine.

See the below diagram for a breakdown of the DVBCore:

The DVBCore contains the following components:

• DVB - Full Digital Video Broadcast midware module.
• Database - Full database module for RAM, NVM databases.
• CA - Conditional Access glue layer.
• CI - Contains CI+ Glue layer.
• Media - Contains glue for jpeg and png Libraries.
• OTA - Contains glue for Over the Air download.

See below diagram for a breakdown of HbbTV:

The HbbTV component contains the following:

• NPAPI Plugin - HbbTV Browser plugin using NPAPI.
• HBBTV Engine - Full HbbTV 1.2.1 compliant engine

The NPAPI currently has 1 call to the Application.

See below diagram for breakdown of MHEG5 with its relationships:

See below DSMCC's relationship with the other components:

The DSMCC has 2 way communications with all other components.