X Video Extension
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High Quality Content by WIKIPEDIA articles! The X video extension, often abbreviated as XVideo or Xv, is a video output mechanism for the X Window System. The protocol was designed by David Carver; the specification for version 2 of the protocol was written in July 1991. Its main use today is to rescale video playback in the video controller hardware, in order to enlarge a given video or to watch it in full screen mode. Without XVideo, X would have to do this scaling on the main CPU. That requires a considerable amount of processing power, sometimes to the point of slowing down/degrading the…mehr

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High Quality Content by WIKIPEDIA articles! The X video extension, often abbreviated as XVideo or Xv, is a video output mechanism for the X Window System. The protocol was designed by David Carver; the specification for version 2 of the protocol was written in July 1991. Its main use today is to rescale video playback in the video controller hardware, in order to enlarge a given video or to watch it in full screen mode. Without XVideo, X would have to do this scaling on the main CPU. That requires a considerable amount of processing power, sometimes to the point of slowing down/degrading the video stream; the video controller is specifically designed for this kind of computation, so can do it much more cheaply.