MHEG-5, or ISO/IEC , is part of a set of international standards relating to the presentation of multimedia information, standardised by the Multimedia. Buy ISO/IEC INFORMATION TECHNOLOGY – CODING OF MULTIMEDIA AND HYPERMEDIA INFORMATION – PART 5: SUPPORT FOR. Buy BS ISO/IEC INFORMATION TECHNOLOGY – CODING OF MULTIMEDIA AND HYPERMEDIA INFORMATION – SUPPORT.
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It is most commonly used as a language to describe interactive television services. MHEG-5 is a licence-free and public standard for interactive TV middleware that is iwc both to send and receive interactive TV signals.
It allows a wide range of TV-centric interactive services to be deployed.
ISO/IEC – Estonian Centre for Standardisation
The principles behind the MHEG-IC are to provide a seamless viewer experience of broadcast delivered content augmented with content delivered over IP as an extension of the channel or network.
Broadcasters have full editorial control of the user experience. The MHEG-IC gives access to streamed on-demand video content in addition to traditional text and graphics as well as the ability to support secure transactions.
MHEG-5 is an object-based declarative programming language which can be used to describe a presentation of text, images and video.
An MHEG-5 application consists of a number of Scenes which the user of the application can move between. Each Scene lists the items of text and graphics to be presented and can contain blocks of procedural code which are executed in response to one of a predefined set of events such as keys being pressed, timers firing or content being successfully loaded into memory.
These blocks of code consist of izo actions sio can perform operations such as changing the text displayed by a text objector starting a video clip playing. MHEG-5 specifies a hierarchy of classes that are available to the application author.
MHEG-5 – Wikipedia
Unlike in object oriented languages, it is not possible for new classes to be defined. Applications are normally written in the textual notation and then encoded into ASN.
MHEG-5 is suited to programming interactive kiosks and interactive television services. The MHEG-5 language itself is just that, a language.
To be useful in any particular context, the language needs to be profiled. In New Zealandthe same profile as in UK is used, with minor additions for the Maori language and its use of the guide key on certified Freeview receivers.
Ireland has selected MHEG-5 v1. You can download the PDF version of above image from http: From Wikipedia, the free encyclopedia. Not to be confused with MPEG.