Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!sun-barr!ccut!wnoc-tyo-news!scslwide!wsgw!headgw!cvgw!yamanaka From: yamanaka@cv.sony.co.jp (Brian Yamanaka) Newsgroups: comp.sys.amiga.multimedia Subject: Re: CDTV Motion Video Message-ID: Date: 13 Jun 91 10:31:02 GMT Sender: news@cv.sony.co.jp (Usenet News System) Organization: Sony Corporation, Consumer Video Group Lines: 59 In article <22384@cbmvax.commodore.com> daveh@cbmvax.commodore.com (Dave Haynie) writes: |>>Actually, to be fair (fair? who said we had to be fair?) Apple's 24 minutes |>>of video is full screen and at 30 frames per second. | |What's more important to the question is, from where does the image originate? I missed the orginal message, but from the above I would hazard that we are talking about Super Mac's Video compression board. This thing is rather expensive, but using JPEG decompression of movies from hard disks. A really nice product for digital movie editing, tho' fast tranistions still show slow refresh. |>What's more interesting is the recently-announced QuickTime, which provides |>something more like what you described for the CDTV. (Small-size display, |>full-motion, 15 frames per second, more compression.) | |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. The nice thing about QuickTime is that it incorperates real time scalable compression and decompression to disks. It even plays back little movies in real time from CD-ROM. The frame rate is something like 10fps (on a IIci). (I hope it was safe to mention this, since it was announced at Seybold Digital World. Don't want legal chasing my butt.) The thing to stress is that the scheme they use is scalable to hardware, both CPU and video display (256 or 16 million colors). That is something that Apple excels in, device independence. Being an avid Amiga user from a 1000->2000->2500/30->3000 and having been exposed to Macintoshs I believe that the Amiga needs 24 bit color with device independent graphics. Of course that is what everyone is saying. I hope that with the 3000 and its video slot/ZorroIII combination we can see this happen soon. The third part solutions are nice, but there has to be some sort of standard for any real software to get written. | | |-- |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. Of course the usual disclaimers apply. I speak for myself and in no way represent those of my employer. So there! -- ------------------------------------------------------------------------------ Brian YAMANAKA (aka The VISCA dude) |"I knew I should have made that Sony Corporation, Personal Video Group | left turn at Albuquerque." Email: yamanaka@cv.sony.co.jp | -Bugs Bunny Phone: +81-3-5488-6160 | FAX: +81-3-5488-6469 |Hawaii,Illinois,Japan...what's next?