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From: wwarner@en.ecn.purdue.edu (Art Warner)
Newsgroups: comp.sys.amiga.multimedia
Subject: Re: CDTV Motion Video
Message-ID: <1991Jun14.202134.14048@en.ecn.purdue.edu>
Date: 14 Jun 91 20:21:34 GMT
References: <1991Jun7.025704.21505@watserv1.waterloo.edu> <13967@goofy.Apple.COM> <22384@cbmvax.commodore.com>
Organization: Purdue University Engineering Computer Network
Lines: 28

In article <22384@cbmvax.commodore.com> daveh@cbmvax.commodore.com (Dave Haynie) writes:
>
>Yeah, that puppy's driven by an AMD 29K at 40MHz or some-such.  Not too shabby
>at all.  You need something like that to get any kind of motion video on a
>large 24 bit display.
>
>Normal Amigas can handle 30FPS no problem from memory.  A3000s can do a pretty
>decent animation from hard disk.  The CDTV problem is that CDs have a terrible
>bandwidth, like maybe 1/30th that of SCSI.  So you figure, all things being
>equal, 30FPS from hard disk equates to 1FPS from CD.  That's not moving.  So 
>good compression is absolutely necessary to get anything moving from CD, even
>in a window.
>
>
>-- 
>Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
>   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
>	"This is my mistake.  Let me make it good." -R.E.M.

What about a CD containing DCTV format files in a "compressed" anim format?  
I did an animation in this format where full overscan NTSC quality video ran at
30 fps and each frame was less than 30k each, BEFORE any compression like MPEG,
JPEG, or filtering.

-- 
William "Art" Warner                 //\
CBM Amiga Student Rep.             \X/--\miga makes it happen..........
wwarner@en.ecn.purdue.edu          IBM, Apple, Sun, & Next make it expensive!