[opendtv] Re: 20060807 Mark's Monday Memo
- From: "Donald Koeleman" <donald.koeleman@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Sat, 12 Aug 2006 23:30:59 +0200
Bert,
If 'this neighbourhood' refers to the Dutch market, I definitely take
Jeroen* to task. Unfortunately, so many years after the introduction of
widescreen tv and following many EU subsidies, 16:9 is still not THE
standard for today's broadcasts. The picture varies across Europe, as I
indicated, but for this neighbourhood, well... Much to the dismay of people
hoping to watch the original footage (not me) on what is by now their
second, third or even fourth 16:9 tv, the Dutch public broadcaster decided
to cut-off the 16:9 sides of the world cup feed coming out of Germany this
summer.
As for 16:9 being the widescreen standard, and the HD standard, well that's
been the case since the eighties.
As for this TF1 public information/marketing piece. They refer to the EICTA
(like CEA) managed 'HD Ready' Logo programme. Saying you're save as long as
you buy a screen that carries this logo. The "input and timing
requirements," phrase was taken from the quoted HD-Ready' logo requirements
document quoted, to show this.
And what it comes down to, the minimum specified by this 'HD Ready'
initiative, is a vertical resolution of 720 lines. An analog component
input, an HDMI (HDCP) input, these input need to accept a number of image
formats. And a screen in the 16:9 shape. That's all.
As for going with anything non-standard, non-interoperable, I don't expect
any broadcaster will, so yes you'll see 720P@50, and or 1080i@25.
I can practically guarantee you that the French will not broadcast anything
in 60, let alone 59,94 Hertz;-).
Donald
* Damn, I forgot I knew some-one in that part of this neighbourhood, just
had to pass on a free set of wear-free SD187 replacement tubes, in Neunen,
as it was too far away;-).
----- Original Message -----
From: "Albert Manfredi" <bert22306@xxxxxxxxxxx>
To: <opendtv@xxxxxxxxxxxxx>
Sent: Saturday, August 12, 2006 10:10 PM
Subject: [opendtv] Re: 20060807 Mark's Monday Memo
> Donald Koeleman wrote:
>
> >B: But the part I highlighted states that the formats an HD ready
> >set must be capable of receiving "at the input" are 1280 x 720
> >at 50 or 60p, and 1920 X 1080 at 50 or 60i.
> >
> >D:Yup, these are the input and timing requirements set by the
> >'HD Ready' logo programme, again this doesn't say anything
> >about the actual broadcasts and whether the screen needs to
> >have a square pixel asspect ratio.
>
> Clarifying again that this is according to TF1 and not the EU, I'd say:
>
> (1) What you call "input and timing requirements," or "et acceptant en
> entree les formats video 1280x720p50, 1280x720p60, 1920x1080i50 et
> 1920x1080i60." are de facto broadcasting standards as far as TF1 goes. I
can
> only interpret what TF1 is saying as being "We transmit any HD program in
> one of those four formats." How else to interpret this? That perhaps the
> transmission might be 1440 X 1080 at 30p (for example), but that an STB
must
> convert that to one of the four formats they list? Theoretically a
possible
> interpretation, but a heck of a stretch.
>
> (2) To be consistent with everything TF1 said, the transmission standard
> will be (from them at least) square pixels and 16:9 aspect ratio. They
> specify those formats and they specify 16:9. Ergo, we have no degrees of
> freedom left.
>
> I agree that TF1 does not state that an HD ready display needs to be in
one
> of those four formats or necessarily square pixels either. They don't list
> any definitive set of formats for the displays, other than a minimum
> requirement of:
>
> "une image 16:9eme d'au moins 720 lignes (soit une resolution native
> minimale de 1280x720)."
>
> By *that* definition, which is TF1's and not the EU's, any 1024 X 720
> display would be dubious as "HD ready." 1024 X 768 may be more acceptable,
> given the total pixel count. Hard to say. Should ask them.
>
> I did search the CSA site and did not find any clear statement from THEM,
> however.
>
> >so why did you put this issue forward, so keenly, and why are we (still)
> >debating this?
>
> Two reasons:
>
> 1. There isn't any other long-winded debate going on, and
>
> 2. I was generally agreeing with Jeroen that "In this neighborhood 16:9 is
> the standard for today." That statement seems completely valid, yet he was
> taken to task. Here too, 16:9 is the wide screen and HDTV standard,
although
> SD programs continue to use (over DTT) 4 X 3. In some rare cases, 14:9. I
> see 14:9 used by the WB network in some of their digital SDTV
transmissions,
> oddly enough.
>
> Bert
>
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