Autodesk 64006-051108-9001 User Guide - Page 112

Required Software, QuickTime Version Compatibility, Backwards Compatibility, Other Scalability Factors

Page 112 highlights

104 Chapter 7: Formats Backwards Compatibility The QuickTime Alternate Movies feature also enables backwards compatibility. For example, you can create a series of progressive-download alternate movies, encoded with Cinepak for QuickTime 3 viewers and Sorenson Video for QuickTime 4 viewers, along with a set of realtime streaming movies for delivery from a Streaming Server for QuickTime 5, 6, and 7 viewers. This enables you to take advantage of a wide range of new features and codecs while ensuring that all QuickTime viewers can watch at least one version. Other Scalability Factors QuickTime enables you to use CPU speed as a display requirement. This enables you to deliver higher-quality streams to computers that have the power to display them properly, while also delivering less CPU-intensive versions to viewers with slower computers. Required Software This section provides information on the additional software necessary for QuickTime encoding. Playback To view QuickTime movies, you must have at least a minimal installation of QuickTime. If you are a Mac OS and Windows user, you probably already have QuickTime installed due to its popularity as both a delivery and authoring format for the Web, CD-ROMs, Enhanced CDs, and so forth. You must have QuickTime 4 or later in order to see streams delivered with QuickTime streaming servers. You can download the QuickTime software from the Apple Website at http://www.apple.com/quicktime. Delivery Use any standard Web (HTTP) or file (FTP) server to serve progressive-streaming QuickTime. A QuickTime Streaming Server is required for realtime streaming of QuickTime movies. QuickTime Version Compatibility One decision to consider when producing QuickTime movies is which version of QuickTime will be used for playback.

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Chapter 7: Formats
104
Backwards Compatibility
The QuickTime Alternate Movies feature also enables backwards compatibility. For example,
you can create a series of progressive-download alternate movies, encoded with Cinepak for
QuickTime 3 viewers and Sorenson Video for QuickTime 4 viewers, along with a set of realtime
streaming movies for delivery from a Streaming Server for QuickTime 5, 6, and 7 viewers. This
enables you to take advantage of a wide range of new features and codecs while ensuring that
all QuickTime viewers can watch at least one version.
Other Scalability Factors
QuickTime enables you to use CPU speed as a display requirement. This enables you to deliver
higher-quality streams to computers that have the power to display them properly, while also
delivering less CPU-intensive versions to viewers with slower computers.
Required Software
This section provides information on the additional software necessary for QuickTime
encoding.
Playback
To view QuickTime movies, you must have at least a minimal installation of QuickTime. If you
are a Mac OS and Windows user, you probably already have QuickTime installed due to its
popularity as both a delivery and authoring format for the Web, CD-ROMs, Enhanced CDs,
and so forth. You must have QuickTime 4 or later in order to see streams delivered with
QuickTime streaming servers. You can download the QuickTime software from the Apple
Website at
.
Delivery
Use any standard Web (HTTP) or file (FTP) server to serve progressive-streaming QuickTime.
A QuickTime Streaming Server is required for realtime streaming of QuickTime movies.
QuickTime Version Compatibility
One decision to consider when producing QuickTime movies is which version of QuickTime
will be used for playback.