Autodesk 64006-051108-9001 User Guide - Page 258

Aspect ratio, Asymmetric Codec, Bandwidth, Batch Encoding, Batch List, Batch Log File, Batch Window

Page 258 highlights

250 Glossary Aspect ratio - width-to-height ratio of an image. See 4:3 aspect ratio, 16:9 aspect ratio and Cinemascope for common examples of aspect ratios. ASX - Windows Media metafile that is placed on the HTTP server and gives Windows Media Player the location of the Windows Media file on the Windows Media Server. ASX files can contain references to multiple movies, different content locations, temporal aspects, and more. The Windows Media 7 replaces ASX with WVX and WAX. Asymmetric Codec - codec that takes longer to encode than decode. For example, Sorenson Video is extremely asymmetric because it takes many times longer to encode a video frame than it does to play back the same frame. Most modern codecs are asymmetric. Bandwidth - amount of information that can be sent, processed, etc., in a given amount of time. For example, a 2x CD-ROM drive has a maximum bandwidth of 300 KBytes/sec; a 28.8 modem has a theoretical bandwidth of approximately 3 KBytes/sec. Batch Encoding - grouping two or more movies together to be compressed sequentially, so that it is not necessary to start encoding manually for each file. Batch List - specific list of movies to be compressed in a batch, as well as the settings that will be used to process each movie. Batch Log File - text file that reports the results of each compression, including any problems that occurred. Batch Window - "home base" for controlling processing within Cleaner. The Batch window displays the list of files to be processed, the setting with which they will be processed, and the Start, Stop and Pause buttons. B-frame (Bi-directional frame) - MPEG difference frame that is based on both the previous and next frame. Similar to a QuickTime delta frame, only with the ability to see what's ahead.

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Glossary
250
Aspect ratio —
width-to-height ratio of an image. See 4:3 aspect ratio, 16:9 aspect ratio and
Cinemascope for common examples of aspect ratios.
ASX —
Windows Media metafile that is placed on the HTTP server and gives Windows Media
Player the location of the Windows Media file on the Windows Media Server. ASX files can
contain references to multiple movies, different content locations, temporal aspects, and more.
The Windows Media 7 replaces ASX with
WVX
and
WAX
.
Asymmetric Codec —
codec that takes longer to encode than decode. For example, Sorenson
Video is extremely asymmetric because it takes many times longer to encode a video frame
than it does to play back the same frame. Most modern codecs are asymmetric.
Bandwidth —
amount of information that can be sent, processed, etc., in a given amount of time.
For example, a 2x CD-ROM drive has a maximum bandwidth of 300 KBytes/sec; a 28.8 modem
has a theoretical bandwidth of approximately 3 KBytes/sec.
Batch Encoding —
grouping two or more movies together to be compressed sequentially, so that
it is not necessary to start encoding manually for each file.
Batch List —
specific list of movies to be compressed in a batch, as well as the settings that will
be used to process each movie.
Batch Log File —
text file that reports the results of each compression, including any problems
that occurred.
Batch Window —
“home base” for controlling processing within Cleaner. The Batch window
displays the list of files to be processed, the setting with which they will be processed, and the
Start, Stop and Pause buttons.
B-frame (Bi-directional frame) —
MPEG difference frame that is based on both the previous and
next frame. Similar to a QuickTime delta frame, only with the ability to see what’s ahead.