Codec Program
From GM-RKB
Jump to navigation
Jump to search
See: Software Program, Encoding Task, Decoding Task, Embedded Device.
References
2013
- http://en.wikipedia.org/wiki/Codec
- A codec is a device or computer program capable of encoding or decoding a digital data stream or signal.[1] [2] [3] The word codec is a portmanteau of "coder-decoder" or, less commonly, "compressor-decompressor". A codec (the program) should not be confused with a coding or compression format or standard – a format is a document (the standard), a way of storing data, while a codec is a program (an implementation) which can read or write such files. In practice, however, "codec" is sometimes used loosely to refer to formats.
A codec encodes a data stream or signal for transmission, storage or encryption, or decodes it for playback or editing. Codecs are used in videoconferencing, streaming media and video editing applications. A video camera's analog-to-digital converter (ADC) converts its analog signals into digital signals, which are then passed through a video compressor for digital transmission or storage. A receiving device then runs the signal through a video decompressor, then a digital-to-analog converter (DAC) for analog display. The term codec is also used as a generic name for a videoconferencing unit.
- A codec is a device or computer program capable of encoding or decoding a digital data stream or signal.[1] [2] [3] The word codec is a portmanteau of "coder-decoder" or, less commonly, "compressor-decompressor". A codec (the program) should not be confused with a coding or compression format or standard – a format is a document (the standard), a way of storing data, while a codec is a program (an implementation) which can read or write such files. In practice, however, "codec" is sometimes used loosely to refer to formats.
- ↑ "Using codecs". Microsoft. https://www.microsoft.com/windows/windowsmedia/player/faq/codec.mspx . Retrieved 2009年12月21日.
- ↑ "About.com - Codec". About.com. http://desktopvideo.about.com/od/glossary/g/codec.htm . Retrieved 2009年12月21日.
- ↑ "Ubuntu Documentation - What is a codec?". Ubuntu Documentation Team. https://help.ubuntu.com/8.04/musicvideophotos/C/codecs.html . Retrieved 2009年12月21日.