[opendtv] Re: Redefining anamorphic
- From: Craig Birkmaier <craig@xxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Fri, 7 Mar 2008 13:18:43 -0500
At 9:09 AM -0800 3/7/08, John Willkie wrote:
Funny that after criticizing the 'table 3" format restrictions, you are now
advocating a new one. That is a very bad idea.
Let's just call it a "recommended practice."
If broadcasters had stuck to the deal they struck with CICATS to drop
Table 3 , which the FCC endorsed, AND we had simply said decoders
must conform to the MPEG-2 levels and Profiles that are specified in
the ATSC standard, NONE of this would matter. A broadcaster could
deliver 1024 x 576, 640 x 360, 1440 x 1080, etc. It simply would not
matter because the decoder could handle it and it would be scaled to
fill at least one dimension of the screen, as is the case today with
movies on DVD, which use more or less vertical lines to support ALL
aspect ratios.
None of this matters anymore, outside of the world of the TV in the
family room. We just encode the source as faithfully as possible.
There is no "format" for video distributed via the Internet. You can
optimize any way you want, and EXPECT that the browsers and media
players will do the right thing. Then again, people work with
multiple windows on a computer, so not using the entire display for
video is also an accepted part of the experience (although most media
players can fill the screen in several ways, just like a TV.
Regards
Craig
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