[opendtv] Re: News: DIGITAL TV OPENS UP TWO-WAY OPPORTUNITIES
- From: "John Willkie" <johnwillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Mon, 3 Mar 2008 12:06:04 -0800
Here's what a vp of a firm in the "processing space" who lurks on this list
sent to me on this topic. (I've removed his name, etc.)
"I'm just lurking but this is what I wrote.
A working implementation of AFD in a broadcast plant does exactly this and
it allows 16:9, 4:3 and 14:9 materials to co-exist and be cut together
seamlessly. It can also accommodate other active aspect ratios such as
2.35:1 film for example to be displayed.
The only assumption would be that active raster of an SD display is 4:3 and
an HD display is 16:9. The amount of black (Pillar or Letter) box is
determined by the rules derived from AFD.
Aspect Ratio Converters exist in SD, HD and Up/Down and Cross converter
products.
The problem is in marking the materials to be shown in the "run list" or
automation process and inserting the data into the video stream. Can you
carry the input of this data all the way back to the beginning of the ingest
process or even sales?
This would help avoid the postage stamp viewing of SD sourced 16:9
commercials on an HD display (like SNL does weekly.) "
John Willkie
-----Mensaje original-----
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de John Willkie
Enviado el: Monday, March 03, 2008 11:24 AM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: News: DIGITAL TV OPENS UP TWO-WAY OPPORTUNITIES
Actually, there is a syndication hdtv issue. At this point, pathfire is the
path used for most syndicated programming. And, at least as of a month or
two ago, pathfire was "still working" on HDTV distribution.
I'm assuming -- not a hint from Bert -- that the "old episode" of CSI:Miami
shown on a Sunday night was through a syndicator pipeline, and not the CBS
network.
And, 4:3 means "NOT HDTV."
John Willkie
-----Mensaje original-----
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de Manfredi, Albert E
Enviado el: Monday, March 03, 2008 10:23 AM
Para: opendtv@xxxxxxxxxxxxx
Asunto: [opendtv] Re: News: DIGITAL TV OPENS UP TWO-WAY OPPORTUNITIES
Craig Birkmaier wrote:
> The real issue here is how much longer can broadcasters survive
> if they hold onto the notion that all receivers are disconnected
> and dumb and that any innovation must be endorsed by all.
There are two discussions here: feeding information back to the
broadcasters from each viewer, and developing standards for receivers
which must interoperate compatibly with all broadcasters.
To feed back info to the broadcasters requires the separate two-way
link. End of story.
And for the CE industry to develop receivers that all broadcasters can
benefit from, as opposed to designing specialty STBs for each
broadcaster, would require the sort of collaboration among broadcasters
that we have not often witnessed.
> You are stuck with the notion that every receiver must be the same
> and that broadcasters will not attempt to deliver a service to a
> subset of the audience. Obviously they are already doing this via
> viewing demographics.
So, you really think that each of the local broadcasters will be
developing their own STBs. Great idea. And you really expect people to
buy 6, 7, or more STBs to be able to benefit from these new services.
Brilliant. Any other flashes of genius?
As to how many services can be multicast over the same 20 Mb/s broadcast
channel, fewer words and more simple arithmetic are in order. Just add
up the bit rates.
Bert
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