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Re: [rtcweb] Video resolution SHOULDs (Re: resolutions in draft-cbran-rtcweb-codec-01)

Harald Alvestrand <harald@alvestrand.no> Tue, 29 November 2011 19:49 UTC

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Date: Tue, 29 Nov 2011 20:49:10 +0100
From: Harald Alvestrand <harald@alvestrand.no>
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To: Ralph Giles <giles@thaumas.net>
References: <201111171620.pAHGKK9M016833@mtv-core-3.cisco.com> <CAFA60D4.57C9%cary.bran.standards@gmail.com> <CAEW_Rkv-ToWmNjbuJsVOdEE=P5+s28GUceYDGQ=EcQO3XZz=Vw@mail.gmail.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Video resolution SHOULDs (Re: resolutions in draft-cbran-rtcweb-codec-01)
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On 11/29/2011 07:49 PM, Ralph Giles wrote:
> On 29 November 2011 10:30, Bran, Cary<cary.bran.standards@gmail.com>  wrote:
>
>>    o  If VP8, then MUST support a the bilinear and none reconstruction
>>       filters
> s/ a//
>
>>    o  Resolutions of 1920X1080, 1280x720, 720x480,
>>       1024x768, 800x600, 640x480, 640 x 360
>>
>>    o  A PAL resolution of 576 lines."
> I would suggest just adding 720x576 to the list of resolutions.
> There's no reason to single out PAL.
>
> If the NTSC and PAL resolutions are confusing, you could try to say
> something about pixel aspect ratios, interlacing, etc. Not sure if
> that level detail is helpful or not.
Interlace? Just Say No!

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