[opendtv] Re: Mortgage stuff
- From: "Manfredi, Albert E" <albert.e.manfredi@xxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 21 Mar 2008 16:45:41 -0400
Tom McMahon wrote:
>> The DTV Team did a lot more than just promote progressive.
>> Didn't they also want to limit non-layered MPEG-2 coding to
>> 720 at 24p and 9 Mb/s? There was something along those
>> lines. That was the base layer, IIRC.
>>
>> Was that right too? I wasn't bowled over then by this idea,
>> and still am not today. Maybe if some amazing codec had
>> come along in the last 10 years to make this idea
>> unquestionably brilliant, I'd think differently.
>
> How bout we all call it "SVC"?
Actually, that's a perfect example of why I wasn't so keen on the DTV
Team's approach.
SVC is an extension of H.264, and it uses an H.264 base layer, yes? So
there is nothing to prevent SVC from being incorporated into ATSC, but
in the meantime we have not had to be shackled by this 720 at 24p
limitation all these years.
Back then, the same argument applied. There never was a reason why
layered coding could not be introduced at some point. But back in 2000
or whenever it was, there was no reason to create an unnecessary
obstacle to HDTV. The 720 at 24p MPEG-2 base layer would have not been
ideal for SVC anyay.
Bert
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