[rescue] Video Creator

[Big Endian]

>http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=1254650585
>
>Has anyone ever looked at these things?  It seems to me that it takes a
>video signal in via RGB BNC connectors, then converts it to YUV, makes in
>the proper scale (via scaling or cropping), and then output to video.  My
>theory is that this whole process is controlled via the SCSI bus, although
>I wonder why SCSI (as opposed to serial) since it seems that it would only
>need a few control commands, as opposed to constant bandwidth.  Can anyone
>verify that this is correct?
>
>If that is correct, then couldn't a person use a couple of those to drive
>multiple video displays from one AGP video card the way the MCO does for
>the Onyx?  Shouldn't reverse engineering what passes over the scsi bus to
>control the thing be fairly simple?
>
>--
>Joshua D. Boyd
>_______________________________________________
>rescue maillist  -  rescue at sunhelp.org
>http://www.sunhelp.org/mailman/listinfo/rescue

These are basically sgi video -> ntsc translators so that you can 
take the output of a Power series machine and dump it to tape.  The 
VLAN port is for controlling special (read EXPENSIVE) vcrs that could 
be made to record at frame by frame.  This is from when machines were 
too slow to render things in real time for tape.  The MCO is 
something completely different.  It reads direct from the framebuffer 
itself not the output of the card.  Theoretically one could build an 
MCO to work with modern AGP video cards (2048x1152 or some other 
insane resolution) by doing the same segmentation of the video signal 
but it wouldn't be worth it. All Pentium II class PCs have the 
ability to use multiple PCI video cards in addition to an AGP card. 
The MCO came about because it was the only way to get multiple lower 
rez signals out of an onyx in a cost effective manner.

daniel
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