Webcam image upside-down

[lmgutie]

Well F10 has much better support for webcams. My webcam works now which is great, however, applications such as amsn, skype, show the image upside-down and I haven't found how to fix it. How can I turn the image so the applications show it correctly?

[Billy_Mays]

flip your camera over.

[LBCoder]

Thats funny.
Depending on the specific driver used for your camera, there may be a driver option or special program to flip the image.

For example: http://ubuntuforums.org/archive/index.php/t-908660.html
-- suggests adding the parameter "vflip=1" when loading the module. If the module you are using supports that option, then it should hopefully do the job.

[lmgutie]

I checked and I am using gspca which detects a sonixb webcam. I tried using:
modprobe gspca_sonixb vflip=1
but I get an error:
FATAL: Error inserting gspca_sonixb ... Unknown symbol in module, or unknown parameter...
Anybody knows how to accomplish it with this driver?

[Hlingler]

Please list some hardware specs so we're not just throwing out guesses here: camera make and model, driver(s) and packages installed. System software fully up-to-date?

If the gspca_sonixb kmod fails with vflip=1 it almost certainly fails without it - try?? Maybe the wrong driver (but that's just a guess...).

V

[lmgutie]

My webcam is sold as model "GE Minicam Pro", manufactured by Jasco, vendor=0c45, id=608f. It can be found here:
http://www.jascoproducts.com/product...uct=30#details

dmesg shows:
usb 2-4: new full speed USB device using ohci_hcd and address 3
usb 2-4: configuration #1 chosen from 1 choice
usb 2-4: New USB device found, idVendor=0c45, idProduct=608f
usb 2-4: New USB device strings: Mfr=0, Product=1, SerialNumber=0
usb 2-4: Product: USB camera
gspca: probing 0c45:608f
gspca: probe ok
usbcore: registered new interface driver sonixb
sonixb: registered

I am using an Acer Aspire ASE380 desktop with Fedora 10 x86_64, fully updated. I have tested on kernels 2.6.27.5-117 and 2.6.27.7-134 both with GNOME. I have tested the webcam with amsn and skype; both show a good image but upside-down. v4l packages are installed; v4l2ucp reports the driver is sonixb 2.2.0 and capabilities are 0x05000001.

the following works:
modprobe gspca_sonixb

the following does not:
modprobe gspca_sonixb vflip=1
FATAL: Error inserting gspca_sonixb (/lib/modules/2.6.27.7-134.fc10.x86_64/kernel/drivers/media/video/gspca/gspca_sonixb.ko): Unknown symbol in module, or unknown parameter (see dmesg)

I had to use the following to make Skype find the webcam:
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

[Hlingler]

Hm. Well then, the 'vflip=1' switch is clearly verboten. At least in this version or compile option.

Since the gspca driver kmods are supplied with the kernel, there is no easy/clear way to go fetch the code nor find a web site, however, I see with 'modinfo gspca_sonixb: "author = Michel Xhaard <mxhaard@users.sourceforge.net>". A quick search at SourceForge.net came up empty. I'd suggest giving the author a nice e-mail asking for help....

V

[HansdeGoede]

Hi,

Unfortunately we cannot fix this for your camera automatically as there are others with the same USB_ID which are not upside down. You can still get the image to be the right way up, by doing (in a terminal):

export LIBV4LCONTROL_FLAGS=3

And then launching your webcam applications from that same terminal.

Regards,

Hans (The better webcam support guy)

[lmgutie]

Thanks !!!

It worked. I placed this line in the shell script I use to launch Skype.

[lmgutie]

I just found that the "v4l2ucp" tool has vertical and horizontal flip switches.
It works fine with Skype.

[malkav]

I tried both methods (the terminal command and v4l2ucp) and in Skype my camera is still upside down. Its normal in Cheese or MPlayer preview out of the box with F12. But whatever modifications I do, Skype seems to be unaffected by any of them.

If you have any ideas, please let me know.

Thank you,
Konstantinos

[lmgutie]

Idea:
This might be because Skype is not ready to use V4L2.
So I use a shell script to make Skype compatible with V4L2.
Lately my script looked like this:

export LIBV4LCONTROL_FLAGS=3
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

I just eliminated the flag line and control vertical flip from v4l2ucp.

[malkav]

Imgutie, many thanks man. Totally works.

[Biggoog]

Imgutie Thanks found one thats works