🚀 go-pugleaf

In article <1338@taniwha.UUCP>, paul@taniwha.UUCP (Paul Campbell) writes:
|> In article <SUHONEN.92Dec7104750@jalka.jyu.fi> suhonen@jalka.jyu.fi (Timo Suhonen) writes:
|> >
|> >Hi!
|> >
|> >I'm looking for a way to pack digitized video frames to hard disk and
|> >further to show those packed files on screen (several pictures in second).
|> 
|> >I have hardware to digitize video (a SGI 4D/310GTX with VideoLab) and I can
|> >digitize video frame by frame. What is the best way to pack this information
|> >to disk? The things we really need are:
|> 
|> >Time for digitizing is irrelevant (less than 3 days would be nice). Number
|> >of video frames to be digitized at time is something like 750 - 1000.
|> 
|> >First I thought about Mpeg, but then I heard, that it only supports 320 x 240
|> >pixels. We can't go to so low resolution ('cause we need those pictures for
|> >an analyse, too).
|> 
|> Buy a SuperMac 'Digital Film' board for a Macintosh (and get a fast CPU and

(etc., etc.)

As an aside, an SGI Crimson (not a 310) VGX can run ~30FPS full resolution
uncompressed video from memory. So, if you can store the images in memory
instead of a disk, upgrading from a 310GTX to a Crimson/VGX may be a better
use of your money than starting all over on the Mac and going the JPEG path.
This would also allow you to take better advantage of your VideoLab board,
since the VGX graphics would get you all sorts of fun things, like writing
moving video into texture memory to map on objects, etc.

The disk performance is mainly gated by the speed of the SCSI bus.

Greg Estes
Silicon Graphics