Pyro Industries API-1394PCI Bedienungsanleitung PDF herunterladen (Seite 236)

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■ EXPORTING

compressed and is easily accessed. The instruction set used in this file is so small that

there is very little concern for drive space. However, it is absolutely dependent on the

media that you already have on your system. If you move it to another computer with-

out the media, the reference file is worthless, bupkis, nil, naught, nothing.

The most common reasons for using QuickTime reference movies are speed and file

efficiency. If you need to export a reference file to be imported into Adobe After Effects

or Apple Shake for compositing, you can easily do this with QuickTime reference for-

mat. The media is already on your system, and there are no compatibility issues. It

saves time for the export and drive space for media, and you can go right to the next

application. This is also an excellent option for files that you intend to compress or

reformat further using a program such as ProEncode or Cleaner.

QuickTime Movie The second method of QuickTime export is as an independent

QuickTime movie with media created by a codec. Creating this type of file depends on

the codec and settings that you choose. It is much larger than the reference file, but it is

also a freestanding file, meaning that you can copy it to another system and it will play

back fine without concern over a reference file and the dependent media.

Codecs

When I first learned the basics of Adobe’s Photoshop application, I was told that the

key to manipulating single images was through plug-ins. The more plug-ins you had,

the more things you could do. As a result, I probably have purchased at one time or

another just about every commercially available plug-in for Photoshop. Plug-ins do a

lot for photo manipulation.

Codecs, for lack of a better analogy, work as the plug-in when it comes to

QuickTime files. There are dozens, maybe even hundreds of QuickTime codecs that

are out there. Even more are being developed as we speak (or read). Think of a

computer geek with a QuickTime development kit, creating a new codec. I guess for

programmers the creation of new codecs is necessary, because I am frequently intro-

duced to them.

For QuickTime, the codec is king. The more codecs you have, the more versatile

QuickTime becomes. Those who die with the most codecs win. Have you ever down-

loaded a video and wondered how on earth they made such a beautiful picture on such

a small file? It is almost always because of the compression-decompression scheme.

Codecs make the difference between a very good QuickTime file and a very bad one.

Note: My own personal preferences divert here.For whatever reasons (age,fear of computers, and so on),

I prefer to use the second type of QuickTime file.

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Pyro Industries API-1394PCI Bedienungsanleitung Seite 236