[Theora-dev] Re: PC-based video server

Ralph Giles giles at xiph.org
Wed Jan 26 17:23:42 PST 2005

On Wed, Jan 26, 2005 at 03:52:00PM -0700, Andrey Filippov wrote:

> Yes, counting that in most cases there will be only one person watching
> the cameras so the total data sent out should be approximately one full
> computer screen. So form each Theora stream (let's say it is
> 2048x1536x12fps) DC components are always decoded and sent out as 256x192
> preview windows. Then operator can send request for PTZ  - select window
> and increase zoom - we could use just discrete settings (1-2-4-8) and use
> first AC coefficients with abbreviated versions of IDCT.

Ah, nice. So it will be just like the magic 'enhance' button they have 
in spy movies. :-)


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