reversed image with webcam Logitec 09b2

[Olivier Lemaire]

Greetings,

The image from my Logitec webcam (046d:09b2) given via gstreamer-properties is reversed (up/down).
I did not find how to indicate v4l driver how to "flip/flap" the image source.

So, in ekiga, I'm just upside-down :(

Is there a way to fix it?

Configuration :
 . hardy heron on Fujitsu-Siemens Lifebook P7230
 . lsub report: Bus 005 Device 003: ID 046d:09b2 Logitech, Inc.

[Yannick Defais (sevmek)]

Hi,

You should probably see with the driver authors of your webcam. Which seems to be the UVC-driver ( http://linux-uvc.berlios.de/ )
There is currently a thread in the devel-mailling list about this issue here:
https://lists.berlios.de/pipermail/linux-uvc-devel/2008-April/003450.html

I reported this to the Ekiga bug system as a feature enhancement:
http://bugzilla.gnome.org/show_bug.cgi?id=530554

Regards,
Yannick

[Loren Pearson (loren41-comcast)]

I have the same problem on my ASMobile laptop using a Syntek USB camera. Running Hardy 8.04

[Hans de Goede (j-w-r-degoede)]

Hi,

This is certainly not an ekiga bug (it will happen with any application), but rather a hardware issue. The webcam has been
mounted upside down in the frame, the vendor probably solves this by providing a custom driver which corrects this in software,
if you would use the default microsoft UVC driver in windows the image would be upside down too.

In Linux, the upside down problem for UVC camera's is solved in userspace by the libv4l library. libv4l has the ability to correct the upside down image, but it needs to know that the webcam is mounted upside down to begin with. In order for libv4l to know this it has a table of laptops which are known to have their webcam upside down.

Chances are good your laptop is already in this table, so first please try the latest libv4l:
http://people.atrpms.net/~hdegoede/libv4l-0.6.2-test.tar.gz
Which I've just updated with a table entry for the Fujitsu-Siemens Lifebook P7230

Installation instructions are here:
http://hansdegoede.livejournal.com/7622.html

If that does not help, your laptop probably needs to be added to the upside down devices list, see this post for the information
I need for this:
https://lists.berlios.de/pipermail/linux-uvc-devel/2009-June/004886.html