home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!wupost!waikato.ac.nz!ldo
- From: ldo@waikato.ac.nz (Lawrence D'Oliveiro, Waikato University)
- Newsgroups: comp.multimedia
- Subject: Re: ***WHAT'S A VIDEO SPIGOT????
- Message-ID: <1992Nov20.171403.12360@waikato.ac.nz>
- Date: 20 Nov 92 17:14:03 +1300
- References: <41224@sdcc12.ucsd.edu>
- Organization: University of Waikato, Hamilton, New Zealand
- Lines: 60
-
- In article <41224@sdcc12.ucsd.edu>, ma168faf@imath8.ucsd.edu (Matthew Guarnotta) writes:
- >
- >
- >
- > WILL SOMEONE PLEASE EXPLAIN IN DETAIL WHAT A VIDEO SPIGOT IS AND HOW IT WORKS
- >
- > HOW MUCH DO THEY COST AND WHAT SORT OF HARDWARE DO YOU NEED??????
- >
- > DO VIDEO IMAGES 24 BIT TAKE UP A LOT OF HD SPACE....
-
- CERTAINLY, BUT YOU'LL HAVE TO STOP SHOUTING. WE'RE ALL FAIRLY CIVILIZED
- around here. Usually.
-
- (That's better.)
-
- Now, about the Spigot:-
-
- SuperMac's VideoSpigot is the lowest-cost video digitizer you can get for a Mac.
- It comes in two main versions: the VideoSpigot LC is specifically for the Mac
- LC and LC II, while the VideoSpigot NuBus is for NuBus-based Macs. You might
- hear about packages called "VideoSpigot Pro" or "Spigot with Sound", but these
- are just NuBus Spigot cards bundled with accelerated video cards and sound input
- cards.
-
- The features and performance of the Spigot pretty much reflect its price. The
- card has a single composite video input (compatible with NTSC, PAL and SECAM),
- and that's it. It comes with a utility called ScreenPlay, which gives you a
- live video-in-a-window display, and will let you grab either movie sequences
- or single still images. A movie sequence can be saved in QuickTime format (and
- read by any application that understands QuickTime movies), while a still
- frame can be saved as a PICT file, and loaded into any application that
- understands those.
-
- The rate at which a Spigot can grab a sequence of frames is very much
- dependent on the speed of your CPU, and the frame size you choose. This is
- because most of the work is being done in software, not hardware. I did a
- test on my LC once, and I calculated that I could manage about 14 frames
- per second at one-sixteenth size (192*144 pixels) from a PAL source, straight
- to RAM. Grabbing to disk was slower (5 to 10 frames per second), and fluctuated
- a lot, probably because of fragmentation on my hard disk.
-
- More recently, SuperMac released a driver called the SpigotVDIG. This implements
- the standard QuickTime digitizer interface, which lets you digitize video
- from a Spigot card directly into any application that uses this interface,
- such as DiVA VideoShop or version 2 of Adobe Premiere.
-
- Price: last I heard, SuperMac had dropped the suggested retail price of the
- VideoSpigot LC to US$299 (I think). The NuBus version was still something like
- US$599.
-
- Also, I think you still get a copy of Adobe Premiere bundled with whatever
- version of the Spigot you buy. I recall the press release described this as
- a "limited edition", which means it might just be version 1.0 of Premiere
- under a different name.
-
- Lawrence D'Oliveiro fone: +64-7-856-2889
- Computer Services Dept fax: +64-7-838-4066
- University of Waikato electric mail: ldo@waikato.ac.nz
- Hamilton, New Zealand 37^ 47' 26" S, 175^ 19' 7" E, GMT+13:00
- History's like a mole; it burrows away unnoticed. -- Andrei Sakharov
-