C

chase mode
A mode of operation in video tape recorders and other transports, in which one or more devices are synchronized to a master device.
chroma burst
Provides color information about the active line of video to the color decoder.
codec
Compressor/decompressor.
color key
A value indicating the color to be used for transparent or translucent effects. When using a hardware blitter, for example, all of the pixels of a rectangular area are blitted except for the value that was set as the color key, thereby creating nonrectangular sprites on a surface.
composition
A collection of tracks and (optionally) other compositions. At rendering time, the sources in a composition are composited into a single image.
compression filter
A specialized type of transform filter that accepts data, uses a compression scheme to transform the data, and passes the compressed data downstream.