Re: [Ekiga-list] V4L/V4L2 video

[Eugen Dedu <Eugen Dedu pu-pm univ-fcomte fr>]

On 28/12/10 00:23, Grigory Maksaev wrote:
> Recently I became a happy owner of a laptop with an upside-down webcamera, which turned out to be rather a common problem.
>
>
> I fixed the situation relatively easy by using "patched" libv4l libraries from Hans de Goede, so that the applications using libv4l are OK now (including Skype).
>
> However, I'd like to move away from Skype for a number of reasons.
>
>
> The problem that I faced with Ekiga is that I'm only able to get video from the webcamera if it is set up as GStreamer/V4L2, and video is of course, upside-down. Sound seems to be OK.
> If I try to make camera work as PTLIB/V4L I get the error:
>
>
> "Error while accessing video device USB 2.0 Camera. Your video driver doesn't support the requested video format."
>
>
> Could anyone help me with this? What I need is just properly working video - either via V4L2 or V4L - it doesn't matter.

If I understand correctly, with PTLIB/V4L and V4L2 the video does not 
work and you have the above error, while with gstreamer/V4L2 the video 
works but upside-down?

This might come if libv4l is not used.  Could you check that ptlib is 
compiled with libv4l support?  In debian for ex. it is, see field 
Build-Depends at the top of 
http://svn.debian.org/wsvn/pkg-voip/ptlib/branches/ptlib-2.6/debian/control?sc=1 
.

Also, does it work with gstreamer?

--
Eugen Dedu
http://eugen.dedu.free.fr