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To: jdc@xinside.com
cc: hackers@freefall.cdrom.com
Subject: Re: Video stuff... 
In-reply-to: Your message of "Fri, 24 Mar 95 14:35:16 MST."
             <199503242135.OAA04397@crab.xinside.com> 
Date: Fri, 24 Mar 1995 14:49:29 -0800
Message-ID: <23629.796085369@freefall.cdrom.com>
From: "Jordan K. Hubbard" <jkh@freefall.cdrom.com>
Sender: hackers-owner@FreeBSD.org
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> When Accelerated-X 1.2 is finally released, we'll have support for
> the Matrox Comet and Matrox Marvel II with the XVideo extension.
> Other boards will be supported in the course of the year, but we
> wanted limited objectives (one board in two model types, with the
> existing X Consortium X Video extension as the API).  Later releases
> will offer more function and feature enhancements.

Can you perhaps say a little more about these boards?  I'd like to
have something good for 3D rendering (ala Matrox Impression) too, if
possible, and I had thought up to now that I'd have to have 2 cards -
the Impression and this Diamond board (or something else).  If the
Comet/Marvel can do BOTH, then my checkbook is ready and waiting -
money no object! :-)

> MPEG hardware initially.  However, you will be able to take a live 
> video feed from VCRs or cameras using RGB, S-video and composite 
> inputs, size them using the on-board scaler and display them in an X 
> Server at up to 800x600x24bpp or 1152x900x16bpp.  The "best" 
> resolution is probably 1024x768x16bpp with 60Hz refresh.

That's essentially all I want anyway.  In fact, if I can get this
combo to work then you guys may very well have a _very_ strategic
partnership come out of it.  I'm not saying any more, except that I'm
playing "point man" for a much larger (and richer) concern on this at
the moment and am interested in any and all solutions.  Maybe you
and I should have another telephone conversation soon! :)

> while there was a live video window.  I left it that way for fifteen
> minutes just to prove that you can do work, when the kernel is dead
> ;-)

:-)

> You can also grab images, using XvGetImage, but you can't feed the
> video stream to disk (you'd need around 60MB/s sustained, and the
> best that we can see on a PC is about 20MB/s).  Of course, by the

That's also an acceptable constraint, at least for now.  We just need
to figure out a solution that will allow us to:

1. Show scalable video in a window.
2. Animate 3D objects at high speed using Reality Labs(tm) or something
   similar.

If you've any suggestions, like I said, I'm more than willing to invest
in a research platform.  I've sort of backed off for the moment out of
confusion over all the different video boards available! :-)

					Jordan