April 2005
Intermediate to advanced
800 pages
20h 52m
English
Content preview from A Practical Guide to Video and Audio CompressionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I
File Types
I.1 File Types
Most operating systems distinguish between one file type and another by using a three-or four-letter file extension. Mac OS Classic used a four-letter code for type and creator properties, which were stored in the file metadata information. Both mechanisms are supported in Mac OS X. Windows uses file extensions to associate the file with an application, while Linux- and UNIX-based systems delegate the file-type recognition to the application-level software.
These file-mapping mechanisms are used by the operating system to run the appropriate application when the file is opened, although it is the shell or finder/explorer application that arbitrates this.
Table I-1 summarizes file extensions and the owner, codec, or ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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