[opendtv] Re: Learning From the Veterans - local news in HD

  • From: "Leonard Caillouet" <lcaillo@xxxxxxxxxxxx>
  • To: <opendtv@xxxxxxxxxxxxx>
  • Date: Wed, 28 Apr 2010 09:00:08 -0400



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From: "Craig Birkmaier" <craig@xxxxxxxxx>
Sent: Wednesday, April 28, 2010 7:54 AM
To: <opendtv@xxxxxxxxxxxxx>
Subject: [opendtv] Re: Learning From the Veterans - local news in HD
The best answer is to send ANY content in any resolution and any aspect ratio following one simple rule. Encode the content using orthogonal samples (square pixels) and report the raster size and aspect ratio in the headers. Make every set accommodate the content the best way possible for the local display. The ONLY limitation here is the performance profiles that are used for encoding - i.e. the level and profile used for the particular video compression codec. And this only sets an upper limit on samples per second, not the formats that can be supported at that sample rate. 


Regards
Craig
How does orthogonal sampling require that the pixels be square? Similarly, having square pixels does not necessarily imply that the sampling is orthogonal, does it? Orthogonal sampling is a statistical notion that requires equal sampling in both directions, but does not require that each sample have a particular characteristic, does it? I don't see the connection, nor the relevance of throwing this term into the discussion. Can you clarify or show me what I am missing? 

Leonard Caillouet
5535 SW 98th Terr
Gainesville, FL 32608
352-367-1075 home
352-219-6216 cell
lcaillo@xxxxxxxxxxxx (home/office email)
lcaillo@xxxxxxxxxxx (mobile email) 


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