X video extension
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. 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. Without XVideo, X would have to do this scaling on the main CPU. 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. 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.
In order for this to work, three things have to come together:
- The video controller has to provide the required functions.
- The device driver software for the video controller and the X server program have to implement the XVideo interface.
- The video playback software has to make use of this interface.
Most modern video controllers provide the functions required for XVideo; this feature is known as hardware scaling and YUV acceleration or sometimes as 2D hardware acceleration. The XFree86 X server has implemented XVideo since version 4.0.2. To check whether a given X server supports XVideo, one can use the utility xdpyinfo. To check whether the video controller provides the required functions and whether the X device driver implements XVideo for any of them, one can use the xvinfo program.

This is an excerpt from the article X video extension from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article X video extension at en.wikipedia.org was accessed 37,340 times in the last 30 days. (as of: 11/17/2013)
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X video extension - Wikipedia, the free encyclopedia
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; ...
en.wikipedia.org/wiki/X_video_extension
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X video extension - YouTube
Feb 14, 2014 ... This is a synthesized speech reading of the Wikipedia article "X video extension" and is intended primarily for blind and visually impaired ...
www.youtube.com/watch?v=KwAdqka1F2A
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X video extension - YouTube
Jul 31, 2014 ... The X video extension, often abbreviated as XVideo or Xv, is a video output mechanism for the X Window System. The protocol was designed ...
www.youtube.com/watch?v=e_8-DEahR2s
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X Video Extension Wiki Article - YouTube
Nov 2, 2013 ... This video is unavailable. You need Adobe Flash Player to watch this video. Download it ... X video extension Wiki Article. Sandra Pavlicek.
www.youtube.com/watch?v=hF2TQirX8Gc
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All About - X video extension - YouTube
Sep 29, 2014 ... What is X video extension? A report all about X video extension for homework/ assignment The X video extension, often abbreviated as XVideo ...
www.youtube.com/watch?v=34QHgOjjqBs
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X Video Extension Protocol Description Version 2 - X.Org
X video extension Protocol Description Version 2 25-JUL-91 David Carver Digital Equipment Corporation Workstation Engineering/Project Athena ...
www.x.org/archive/X11R7.5/doc/videoproto/xv-protocol-v2.txt
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xv(3): X Window System video extension - Linux man page
The X video extension (Xv) extension provides support for video adaptors attached to an X display. It takes the approach that a display may have one or more ...
linux.die.net/man/3/xv
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The XFree86 X Video Extension (Xv) Device Dependent Layer
XFree86 offers the X video extension which allows clients to treat video as any another primitive and ``Put'' video into drawables. By default, the extension ...
www.xfree86.org/current/DESIGN16.html
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8.4. Video Playback - The FreeBSD Project
XVideo: an extension to the Xorg interface which allows video to be directly displayed in drawable objects through a special acceleration. This extension ...
www.freebsd.org/doc/en/books/handbook/video-playback.html
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Install X video extension "Xv" | Junjun's Admin Notes
Jan 30, 2010 ... Xv is a commandline x video program written in 90's. Yes, in 90's, but still I have users requesting me to install on their Linux boxes. From wiki ...
pka.engr.ccny.cuny.edu/~jmao/node/23
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X video extension in science
X video extension - Wikipedia, the free encyclopedia
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; ...
Extension on Video - Iowa State University
Asistencia para alimentos de Iowa. El programa de Asistencia Alimentaria, a SNAP, es una manera en que las familias con ingreso económico limitado pueden ...
X video extension - YouTube
14 Feb 2014 ... This is a synthesized speech reading of the Wikipedia article "X video extension" and is intended primarily for blind and visually impaired ...
[PDF]Kaltura Video Extension for Moodle Dec 2012
With the Kaltura Video Package for Moodle 2.x, instructors can post videos, photos ... Key Features of the Kaltura Moodle Extension ... NEW YORK UNIVERSITY.
Welcome : Extension : Clemson University : South Carolina
The national Cooperative Extension Service engages citizens to improve economic development and ... Cooperative Extension Social Media ... Featured Video ...
Food Safety & Nutrition : Extension : Clemson University : South ...
Have you ever asked your self "Why did the chicken cross contaminate?" Check out this video about a tale of cross contamination. This is the first in a series of ...
Across the Fence / UVM Extension - University of Vermont
24 Nov 2010 ... Note: Depending upon available bandwidth, videos may take a minute or more to start playing. Video files are in WMV format (download ...
Re: xvideo extension not working - Lists - Apple
17 May 2007 ... Subject: Re: xvideo extension not working; From: "leon zadorin" ... hi-def. video interaction over modern networks (e.g. university to university ...
Digital Arts Center Workshop: Video & Editing Program - UC San ...
uc san diego extension ... camera (video capable smartphone is fine) and a laptop with Final Cut X or Adobe Premiere installed. ... Manage your email subscriptions via My Extension. ... Official web page of the University of California , San Diego.
Books on the term X video extension
Articles on X Window Extensions, Including: Glx, X Video ...
Hephaestus Books, 2011
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Professional Microsoft IIS 8
Professional Microsoft IIS 8
Jeff Cochran, 2012
Stellar author team of Microsoft MVPs helps developers and administrators get the most out of Windows IIS 8If you're a developer or administrator, you'll want to get thoroughly up to speed on Microsoft's new IIS 8 platform with this complete, in-depth reference. Prepare yourself to administer IIS 8 in not only commercial websites and...
Xgl: X Window System, OpenGL, Glitz, X Video Extension, ...
Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken, 2010
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.
Professional IIS 7
Professional IIS 7
Jeff Cochran, 2008
As the first update to Microsoft's server operating system in nearly five years, Windows Server 2008 boasts the new Internet Information Services 7.0 (IIS 7), which is the largest departure from previous versions of IIS ever. Written by an author team that includes four Microsoft MVPs, this book shows you how to take advantage of these excitin...
Linux Multimedia Hacks: Tips & Tools for Taming Images, ...
Kyle Rankin, 2006
#47 Master Video Output Options There are also a number of other hardware accelerated video modes that are designed ... It should create a lot of output if your card is supported: $ xvinfo X-Video Extension version 2.2 screen #0 Adaptor #0: ...
The Joy of X: An Overview of the X Window System
Niall Mansfield, 1993
Phigs extension to X (X3D-PEX): provides support for the Phigs graphics standard within the X server. ... beyond the pointer and keyboard devices handled by standard X. Video extension to X (VEX): allows windows containing live video to be ...
Linux Multimedia Hacks: Tips & Tools for Taming Images, Audio, and Video
Linux Multimedia Hacks: Tips & Tools for Taming Images, Audio, and Video
Kyle Rankin, 2005
The fact that Linux has more multimedia application choices than Mac OS X and Windows combined may come as a surprise to many, but not to those who know Linux well. In Linux Multimedia Hacks, author Kyle Rankin showcases the best available multimedia tools so you can maximize the entertainment capabilities of your favorite OS. Included are tips and...
AUUGN
Pound video stream: 0 Detected MPEG-PS file formatt ==> Found audio stream: 128 mpeg2dec-0 . 2 . ... The XVideo extension is something you might want to try and use and the Xine FAQ tells you how to enable that support on your system, ...
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Blog posts on the term
X video extension
X video extension - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/X_video_extension
X video extension - YouTube
This is a synthesized speech reading of the Wikipedia article "X video extension" and is intended primarily for blind and visually impaired individuals who c...
www.youtube.com/watch?v=KwAdqka1F2A
X-Video Extension: no adaptors present
I am trying to get X-Video extensions enabled. Code: #xvinfo X-Video Extension version 2.2 screen #0 no adaptors present Code: # xdpyinfo | grep XV
www.linuxquestions.org/questions/fedora-35/x-video-extension-no-adaptors-present-275550/
Extension on Video
video.extension.iastate.edu/
Knowledge Base | X WordPress Theme
theme.co/x/member/kb/
X Theme Extensions - (Free) Premium WordPress Plugins
Extend the functionality of X with these incredibly WordPress Plugins. Created by Themeco to work seamlessly with X, all Extensions are included for free with
theme.co/x/extensions/
The Netflix Tech Blog: HTML5 Video in Safari on OS X Yosemite
By Anthony Park and Mark Watson. We're excited to announce that Netflix streaming in HTML5 video is now available in Safari on OS X Yosemite! We've been working closely with Apple to implement the Premium Video Extensions in Safari, which allow playback of premium video content in the browser without the use of plugins. If you're in Apple's Mac Developer Program, or soon the OS X Beta Program, you can install the beta version of OS X Yosemite.
techblog.netflix.com/2014/06/html5-video-in-safari-on-os-x-yosemite.html
X11 Video extension library — Ubuntu Apps Directory
apps.ubuntu.com/cat/applications/natty/libxv1/
Extension:EmbedVideo - MediaWiki
www.mediawiki.org/wiki/Extension:EmbedVideo
Blog | Technology Software Reviews
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