World Library  
Flag as Inappropriate
Email this Article

Video4Linux

 

Video4Linux

Video4Linux
Development status active
Written in C
Operating system Linux
Platform Linux kernel
License GNU General Public License
Website .org.linuxtvwww

Video4Linux or V4L is a video capture[1] and output device API and driver framework for the Linux kernel, supporting many USB webcams, TV tuners, and other devices. Video4Linux is closely integrated with the Linux kernel. Video4Linux was named after Video for Windows (which is sometimes abbreviated "V4W"), but is not technically related to it.[2][3]

Contents

  • Version 1 1
  • Version 2 2
  • Software supporting Video4Linux 3
  • See also 4
  • References 5
  • External links 6

Version 1

V4L had been introduced late into the 2.1.X development cycle of the Linux kernel. V4L1 support was dropped in kernel 2.6.38.

  • http://linuxtv.org/articles/Gspca

Version 2

V4L2 is the second version of V4L. Video4Linux2 fixed some design bugs and started appearing in the 2.5.X kernels. Video4Linux2 drivers include a compatibility mode for Video4Linux1 applications, though the support can be incomplete and it is recommended to use Video4Linux1 devices in V4L2 mode. The project DVB-Wiki is now hosted on LinuxTV web site.

Some programs support V4L2 through the media resource locator v4l2://.

Software supporting Video4Linux

See also

  • Direct Rendering Manager – defines a kernel-to-user-space interface for access to graphics rendering and video acceleration
  • Mesa 3D – implements video acceleration APIs

References

  1. ^
  2. ^ https://www.kernel.org/doc/Documentation/video4linux/v4l2-framework.txt Overview of the V4L2 driver framework
  3. ^ https://events.linuxfoundation.org/images/stories/pdf/lceu2012_debski.pdf Video4Linux2 - Path to a Standardized Video Codec API
  4. ^ http://www.lavrsen.dk/foswiki/bin/view/Motion/MotionFeatureList

External links

  • media_tree development git
  • v4l-utils development git
  • Linux Media Infrastructure API (V4L2, DVB and Remote Controllers)
  • Video4Linux-DVB wiki
  • Video4Linux resources
  • Video For Linux (V4L) sample applications
  • Video For Linux 2 (V4L2) sample application
  • Access Video4Linux devices from Java
  • kernel.org
  • OpenWrt Wiki
  • Linux UVC driver and tools, USB video device class (UVC)


This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.