[vorbis] Video codec

[Tom Bishop]

----- Original Message ----- 
From: "Jelle Foks" <jelle-foks at list.dedris.nl>
To: <vorbis at xiph.org>
Sent: Tuesday, September 12, 2000 2:40 AM
Subject: Re: [vorbis] Video codec

> Tom Bishop wrote:
> > 
> > Thanx for the description.. ;-)
> > 
> > Would say blocking noise..
> > 
> > It is as if there is not enough info to fill in the details,
> > so it just paints the block all one color...
> 
> One color. If that happens in places where the image really contains
> more variation that that, then that's a sign of a pretty 'desparate'
> encoder. In that case the encoder decides to discards all higher DCT
> component alltogether and encode only the DC coefficient. That would be
> a bit rate really too low for the encoder to handle.

With only 1 GB/hr I would think it would get desparate...

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