[vlc-devel] [rms at gnu.org: VLC and V4L2]

Luis aproxs at gmail.com
Thu Oct 4 09:11:40 CEST 2007

Hello. I was supposed to be doing things with this module, but cause some
different reasons I couldn't work on that and stills in the same point. I
have a very well known on V4L2, but have no time to do the module. If
someone is interested on doing that, I will help as much as I can, but for
the moment I cannot do much more.


On 10/4/07, Benjamin Pracht <bigben+spam at videolan.org> wrote:
> I would welcome any comment on this. I guess what we really lack here is
> a developer willing to spend some time on it. Does anybody see anything
> concrete the FSF can do to help? I remember some emails on this mailing
> list about some people working on the v4l2 module. Did we get any
> feedback?
> Writing a full support for all the v4l2 compatible devices might be a
> rather big work, but even a basic support of some devices would be a
> very nice first step.
> Currently, the v4l2.c file only contains probing code. I'm not even sure
> we really want to keep it. The pvr module probably also have useful
> code for the access part.
> What remains to be done is mostly:
> - to split the module in an access and an access_demux
> - complete the probing code
> - write device selection, device configuration code (source, tuner
>   properties, v4l chroma to vlc FOURCC currespondance, etc)
> - write the data reading routines (some devices use read calls on the
>   device node, some use ioctls)
> - callbacks usable from a gui to get the device list (see direct show)
> - probably lots of other things I forget. I worked on those more than 1
>   year ago, not exactly sure anymore about how all this works.
> I'm afraid I won't be able to take this over. I can try to help anybody
> having questions on the existing code, but again, it's not much and I
> don't think there is a lot to say about it.
> --
> BigBen
> ---------- Forwarded message ----------
> From: Richard Stallman <rms at gnu.org>
> To: bigben at videolan.org
> Date: Sat, 29 Sep 2007 23:04:08 -0400
> Subject: VLC and V4L2
> I would really like VLC to work with V4L2, so I wonder: is there
> anything the FSF could do to help you make progress on this?  Please
> tell me what would be useful.
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