Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!ucsd!ucbvax!BRL.MIL!mike
From: mike@BRL.MIL (Mike Muuss)
Newsgroups: comp.sys.sgi
Subject: Re:  Abekas A60 Utilities: fromyuv
Message-ID: <9005091237.aa00610@VMB.BRL.MIL>
Date: 9 May 90 16:37:09 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 16

Steve Lamont suggests having the A60 perform the YUV--RGB conversion
internally.

My own timings with this show that the A60 takes about 20 additional seconds
to perform the conversion.  After all, it only has a 68000 CPU.
So, YUV transfer takes about 5 seconds, RGB transfer takes 25 seconds.

Our Cray XMP can perform the conversion in well under a second, and an
SGI 4D/2xx CPU can do it in a second or two, so moving the conversion
operation out of the A60 and into you host usually saves a lot of elapsed time.

Since I usually have a lot of images to send, 20 seconds/frame means a lot
to me!

	Best,
	 -Mike