Apple QuickTime Guide de l'utilisateur télécharger pdf (Page 45)

Glossary

AIFF (Audio Interchange File Format) An audio file format used widely on the web.

aspect ratio The relationship between the height and width of an image.

bandwidth The capacity of a network connection, measured in bits or bytes per

second, for carrying data.

BMP A bitmapped graphics format used for still images in the Windows environment.

bitmapped Represented by pixels.

cel A single frame of an animated film using the traditional film animation process.

chapter list A list of “locations” in a movie. A user can choose an item from the chapter

list to go to that point in the movie.

codec From “compressor/decompressor.” A codec is technology for compressing and

decompressing data. Codecs can be implemented in software, hardware, or a

combination of the two.

compression The process of reducing the data size of a file.

Darwin Streaming Server A technology for delivering media over the Internet in real

time. Based on the same code as Apple’s QTSS, Darwin Streaming Server is an open-

source streaming server.

Fast Start A method of delivering a movie so that it can start playing before it is fully

downloaded.

frame A single image in a movie.

frame rate The number of frames displayed per second.

GIF (Graphics Interchange Format) A file format for images.

hint track In a streamed movie, a hint track specifies how the movie’s content is to

be transmitted.

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Apple QuickTime Guide de l'utilisateur Page 45