Ti Wikipedia Sunda, ensiklopedi bebas
MHEG-5
, atawa
ISO
/
IEC
13522-5, nyaeta bagean tina hiji kumpulan standar internasional nu patali jeung midangkeun informasi, distandarkeun ku
Multimedia
and
Hypermedia
Experts Group
(MHEG). Ilaharna dipake minangka basa keur nerangkeun jasa
televisi interaktif
.
MHEG-5 mangrupa basa program
deklaratif
dumasar objek
nu bisa dipake keur ngajentrekeun pidangan teks, gambar katut video. Aplikasi MHEG-5 ngawengku sajumlah
Scenes
nu bisa dipundah-pindah pamake aplikasina. Unggal
Scene
ngadaptar
item
teks katut grafik pikeun nu baris dipidangkeun sarta bisa ngandung blok kode
prosedural
nu dijalankeun minangka respon kana salah sahiji tina sakumpulan
kajadian
nu geus ditetepkeun tiheula kawas tombol dipencet, timer hurung atawa eusina geus hasil asup kana memori. Blok kode ieu ngawengku
peta dasar
(elementary actions)
nu bisa nyieun operasi kawas ngarobah teks nu kapidangkeun ku hiji
objek
teks, atawa ngamimitian muter klip video.
MHEG-5 specifies a hierarchy of classes that are available to the application author. Unlike in
object oriented
languages, it is not possible for new classes to be defined. The standard defines two representations of MHEG applications, one of which is textual and the other is represented in
ASN.1
. Applications are normally written in the textual notation and then encoded into ASN.1 for interpretation by the MHEG
engine
.
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 the
UK
and in
New Zealand
, MHEG-5 is used to provide
interactive
services for digital television. The full specification of how MHEG-5 is used in the context of the UK
Freeview
platform is the
UK Profile of MHEG-5
. A similar specification is used in New Zealand.
In Hong Kong,
TVB
has also selected MHEG-5 middleware for interactive services available on its digital broadcasting channels.
[1]
A broadcast profile of the language has also been standardized by
ETSI
forming ETSI standard ES 202 184.
- MHP
, tehnologi alternatif nu dipake keur jasa televisi interaktif di sababaraha nagara di Eropa.