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From: neideck@kaputt.enet.dec.com (Burkhard Neidecker-Lutz)
Newsgroups: comp.sys.mac.programmer
Subject: Re: QuickTime (tm) !
Message-ID: <1991Jun12.104432.7182@pa.dec.com>
Date: 12 Jun 91 10:44:32 GMT
References: <D88-JWA.91Jun5233120@byse.nada.kth.se> <1991Jun6.191929.14421@athena.mit.edu> <9125@ucdavis.ucdavis.edu>
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Organization: CEC Karlsruhe
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Can anybody in the know explain a little bit more about the digitized video
component of QuickTime and the "Movie" file format ?
 
To cite from the QuickTime press release:

	"The Movie file format is a container for [this] time-based data.
	  Apple is publishing the full specifications for the Movie file
	 format..."

Where can I get a description ?

   "Video Compressor
      Apple's Video Compressor--developed by Apple--allows digitized
      video sequences to play back from a hard disk or CD-ROM in
      real-time with no additional hardware on any Macintosh with a 68020
      or higher Motorola processor.
     The Video Compressor offers compression ratios ranging from 5:1
     to 25:1.  The video playback size is typically less than 1/4 of
     the computer screen size."

What frame rate ? what image sizes ? what depth's ? Is this the same stuff
that was demonstrated at last years SIGGRAPH in Dallas ?



		Burkhard Neidecker-Lutz, CEC Karlsruhe