[opendtv] Ofcom opts for AVC 4.0 for UK HD DTT
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Tue, 10 Feb 2009 14:29:19 -0500
Looks like 1080i will soldier on even in DVB-T2 countries.
Bert
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http://www.dtg.org.uk/news/news.php?class=countries&subclass=0&id=3270
Ofcom opts for AVC 4.0 for UK HD DTT
Ofcom is set to adopt an MPEG-4 advanced video coding (AVC) level of 4.0
in the reference parameters for the UK's upcoming DVB-T2 high definition
digital terrestrial television service.
The decision means that 1080p50 will not initially be a permissible
video format for DVB-T2 services and as a result of capacity constraints
and DVB-T2 receiver life, the Freeview HD platform will not support
1080p50 within the life of launch receivers.
The regulator wrote to stakeholders earlier this year requesting views
on the choice of which MPEG-4 AVC to include when they revise the DTT
Reference Parameters later this year to permit use of DVB-T2 and MPEG-4.
Based on feedback, the regulator said that, while an AVC level of 4.2 at
this point is desirable, its adoption would represent a significant risk
to the early launch of the DVB-T2 platform and that they have therefore
decided to adopt an AVC level of 4.0 in the reference parameters -
therefore not including 1080p50 as a permissible video format for DVB-T2
services.
Ofcom said they expected that this decision would continue for at least
the medium term, and that they would include it as their recommended
option when they formally consult on the Reference Parameters later in
the year when there is greater certainty on the choice of transmission
mode.
DTG Staff 10.02.2009
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