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

From: Andrew Barr andrew.james.barr at gmail.com
Date: Sun Feb 4 21:33:30 EET 2007

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...


Andrew Barr

"My life is an open book, but I'm not going to read it to you."
        -- David Hyde Pierce

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