[maemo-developers] [maemo-developers] Does camera in N800 support X11 Xv extension?

[From: Kalle Vahlman]

2007/2/4, Andrew Barr <andrew.james.barr at gmail.com>:
> Hi,
>
> My turn to offer you some help :-)
>
> On Sun, 2007-02-04 at 19:47 +0100, Tim Teulings wrote:
> > Hallo!
> >
> > Subject says it all:
> >
> > Does the camera in the N800 support the X11 Xv extension, that mean can
> > I use this extension for displaying images of the camera or must I use
> > v4l V2 (what about the V1 interface) or gstreamer?
>
> The X server in the N800 supports Xv, IIRC from earlier postings either
> to this list or the Xorg list. As for the camera access API, I did some
> poking around /sys on my N800 last night and as far as I can tell the
> camera is a standard V4L2 device with an open driver. I say this because
> the camera driver does not appear to be a module, which is required of
> non-free kernel drivers due to licensing.
>
> If you used GStreamer, I imagine the input pipe would be v4l(2) and the
> output pipe Xv. I think standard camera apps should work reasonably well
> on the N800, but anyone from nokia.com or elsewhere is free to correct
> me for my semi-informed speculation...

You can install 'gstreamer0.10-tools' package, pop out the camera and try:

  gst-launch v4l2src ! xvimagesink

but be sure to comb your hair before that ;)

-- 
Kalle Vahlman, zuh at iki.fi
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