The video playback software has to make use of this interface.

The device driver software for the video controller and the X display server program have to implement the XVideo interface.

The video controller has to provide the required functions.

In order for this to work, three things have to come together: Similarly, the X video extension can have the video controller perform color space conversions, and change the contrast, brightness, and hue of a displayed video stream. That requires a considerable amount of processing power, which could slow down or degrade the video stream video controllers are specifically designed for this kind of computation, so can do it much more cheaply. Without XVideo, X would have to do this scaling on the main CPU. It is mainly used today to resize video content in the video controller hardware in order to enlarge a given video or to watch it in full screen mode. The protocol was designed by David Carver the specification for version 2 of the protocol was written in July 1991. xXx sets out to entertain, and that it does.The X video extension, often abbreviated as XVideo or Xv, is a video output mechanism for the X Window System. No one would believe a guy like Xander Cage would be recruited as an undercover agent in any sort of organization, but that's not really the point. I think the bottom line is, this movie is so far-fetched and insane that it works as one of the best mindless action adventures of the last decade. Jackson & an equally clichéd turn from Marton Csokas. The supporting characters are fittingly absurd and bizzare, led by a prototypical performance from Samuel L. All are staples of the franchise, and Xander Cage's first film outing is no different. Fast cars, explosions, women in scantily clad attire, incoherent plots, over-the-top villains, and catchy music. Essentially, this is just another Fast & Furious movie.