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codec Last modified: Tuesday, January 20, 2004
(1) Short for compressor/decompressor, a codec is any technology for compressing and decompressing data. Codecs can be implemented in software, hardware, or a combination of both. Some popular codecs for computer video include MPEG, Indeo and Cinepak. (2) In telecommunications, (short for coder/decoder) a device that encodes or decodes a signal. For example, telephone companies use codecs to convert binary signals transmitted on their digital networks to analog signals converted on their analog networks. (3) The translation of a binary value into a voltage that can be transmitted over a wire.
The Almost Definitive FOURCC Definition List This site contains descriptions of RGB and YUV pixel formats used by Video for Windows, DCI and DirectDraw. Also included is a list of AVI codec FOURCCs and links to sites offering codec information or downloads.	Related Categories Communications Data Compression Related Terms AAC Cinepak Indeo MPEG MPEG-4 QuickTime Video for Windows wavelet wavelet compression