[opendtv] Re: Definition of Anamorphic
- From: Mark Schubin <TVMark@xxxxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Wed, 07 Oct 2009 15:32:38 -0400
Kilroy Hughes wrote:
Just to complicate things ...
Everyone is using "720" as the width, but the display width and 4:3/16:9
display aperture is actually supposed to be 704 (implying a Sample Aspect Ratio in an
MPEG codec too dumb to specify it as 11/10 H/W, 1.10), and it can be encoded at 704 or
720.
No question that it's 704 in ATSC (and probably some other systems), but there
are also 720, 708, and other values.
TTFN,
Mark
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