Archived:Main Page-V4L: Difference between revisions

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Welcome to the video4linux wiki (For DVB wiki, click [http://www.linuxtv.org/wiki here])
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This wiki is designed to serve as a community focus and the resource of reference for users and developers of the Video4Linux framework. In the short term, the task is to document the operation and quirks of hardware supported by v4l applications, to complement and offload the [https://listman.redhat.com/mailman/listinfo/video4linux-list v4l mailing list] -- cf. [http://marc.theaimsgroup.com/?l=linux-video searchable archives].

We are also encouraging developers to turn this site into a repository of knowledge about v4l, helping to ensure that expertise acquired through much hard labor and long dedication won't get lost, but can be passed on to new developers and keep free software thriving.

If you are a user looking for help, please try searching the [http://marc.theaimsgroup.com/?l=linux-video mailing list archives] first, before asking a question on the [https://listman.redhat.com/mailman/listinfo/video4linux-list v4l mailing list]. You may also be able to get immediate help on the #v4l irc channel on irc.freenode.net -- hopefully someone there will be able to help you!

The wiki will only be as useful as we make it. Every user of video4linux has something to contribute, and we encourage you to begin right away. Whatever you can contribute will be warmly appreciated, whether it is a set of instructions for how to get a certain card working, a report on the audio and video quality of a working card, suggestions for how to extend an existing driver or write a new one, or an explanation of the internal logic of v4l itself.

To keep these instructions free, all contributions to this wiki are automatically licensed under the GNU General Public License [http://www.gnu.org/copyleft/gpl.html GPL]. If you wish, you may specify in each case that your contribution is dual-licensed under the [http://www.opensource.org/licenses/mit-license.html MIT License]. Please help us keep spam away by signing in before you post.

Enjoy!

The v4l wiki team



''' These categories are provisional placeholders, drawn from LinuxTV's [http://linuxtv.org/wiki/index.php DVB wiki]. To make a contribution, just click on one of the links and start writing. The idea is to aggregate information about available hardware, v4l experiences, HOWTOs, and technical information about the workings of v4l devices work. In short, to make this a place a useful and well-organized resource for everyone interested in video4linux.
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* '''Technical Background'''
** '''Video4linux APIs'''
*** [http://www.linuxtv.org/downloads/video4linux/API/V4L2_API Linux v4l2 API]
*** [http://www.linuxtv.org/downloads/video4linux/API/V4L1_API.html Linux v4l API - Obsoleted]
** [http://users.pandora.be/educypedia/electronics/television.htm TV Encyclopedia]
** [http://www.devlab.info/ New API]
** [http://www.ee.surrey.ac.uk/Contrib/WorldTV/ Analog TV]
** [[Digital TV]]
** [[PCI interface chipsets used for v4l cards]]
** [[GPIO pins]]
** [http://secure.netroedge.com/~lm78/docs.html i2c Protocol]
** [[Radio Data System (RDS)]]
* '''Developer Section'''
** [[How to build from CVS |How to build from v4l CVS]]
** [[How to write good problem report |How to write good problem report]]
** [[How_to_submit_patches |How to submit patches]]
** [[Anatomy of a v4l device]]
** [[Anatomy of a v4l driver]]
** [[How to add support for a new card]]
** [[TODO - main tasks]]
** [[Maintaining CVS tree]]
** '''Kernel Development'''
*** [[SubmittingPatches | Kernel rules to submit patches]]
*** [[Documentation/SubmittingDrivers | Kernel rules to submit drivers]]
*** [[Documentation/CodingStyle | Kernel Coding Style]]
*** [http://jungla.dit.upm.es/%7Ejmseyas/linux/kernel/hackers-docs.html Index of Documentation for People Interested in Writing and/or Understanding the Linux Kernel]
*** [http://www.jetdev.info/ dev news]

* '''v4l-based Example Setups'''
** [[Home brews]]
** [[MythTV]]

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* '''Supported Hardware'''
** The types of [[Tuners]]
*** (as listed in the kernel as of 2.6.12-rc2)
** [[Hardware vs software encoders]]
** [[v4l card vendors]]
** TV cards and drivers
*** Video via PCI
**** [[List survey of cards in use now]]
**** [[bttv devices (bt848, bt878)]]
***** [[alternating field capture]]
***** [[btaudio (bt878)]]
**** [[saa7134 devices (saa713x)]]
**** [[saa7146 devices]]
**** [[cx88 devices (cx2388x) ]]
**** [[ivtv devices (cx23415, cx23416)]]
**** [[zoran devices (zr36057, zr36067)]]
*** [[zoran (zr36120, zr36125) ]]
*** Video via USB
**** [[USBVideo]] Request support for USB Video devices
**** [[Em2820]]
**** [[USBVision devices]]
**** [[DiBcom USB devices]]
**** [[OmniVision USB devices (OV511, etc)]]
**** [[H&B TX-100]] analog to digital video converter
** Other devices
*** [[Radio]]s
*** [[Webcams]]
*** [[Scanners]]
*** [[Loopback]]
*** [[Digitisers]]

* '''Applications'''
** [[v4l watching]]
** [[v4l recording]]
** [[v4l capturing]]
** [[text capture]]

* '''Peripherals for v4l'''
** [[Antennas]]
** [[Remote controllers]]

* '''[[v4l Links]]'''
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[http://linuxtv.org Category:LinuxTV]

Revision as of 03:33, 24 December 2005


Welcome to the video4linux wiki (For DVB wiki, click here)

This wiki is designed to serve as a community focus and the resource of reference for users and developers of the Video4Linux framework. In the short term, the task is to document the operation and quirks of hardware supported by v4l applications, to complement and offload the v4l mailing list -- cf. searchable archives.

We are also encouraging developers to turn this site into a repository of knowledge about v4l, helping to ensure that expertise acquired through much hard labor and long dedication won't get lost, but can be passed on to new developers and keep free software thriving.

If you are a user looking for help, please try searching the mailing list archives first, before asking a question on the v4l mailing list. You may also be able to get immediate help on the #v4l irc channel on irc.freenode.net -- hopefully someone there will be able to help you!

The wiki will only be as useful as we make it. Every user of video4linux has something to contribute, and we encourage you to begin right away. Whatever you can contribute will be warmly appreciated, whether it is a set of instructions for how to get a certain card working, a report on the audio and video quality of a working card, suggestions for how to extend an existing driver or write a new one, or an explanation of the internal logic of v4l itself.

To keep these instructions free, all contributions to this wiki are automatically licensed under the GNU General Public License GPL. If you wish, you may specify in each case that your contribution is dual-licensed under the MIT License. Please help us keep spam away by signing in before you post.

Enjoy!

The v4l wiki team


These categories are provisional placeholders, drawn from LinuxTV's DVB wiki. To make a contribution, just click on one of the links and start writing. The idea is to aggregate information about available hardware, v4l experiences, HOWTOs, and technical information about the workings of v4l devices work. In short, to make this a place a useful and well-organized resource for everyone interested in video4linux.

Category:LinuxTV