iSight camera images have green/purple tint

Empathy also uses gstreamer but shows me a smaller but normal picture.

Same problem here, iSight in MacBook 4,1, Jaunty Beta. Greenish image in Cheese, but extended gst-launch-0.10 command delivers correct colors.

From bug 357051:
cheese is not using gconfvideosrc which is configured via gstreamer-properties.
instead it tries to detect the camera. for the iSights this fails.
it tries to use rgb instead of yuv from the camera, resulting in green images,
https://help.ubuntu.com/community/MactelSupportTeam/AppleiSight
suggests to set gstreamer-properties, this no longer works in cheese.

a patch to make cheese use UYVY, this might break other cameras though

Cheese doesn't fail anything here. It is a known libv4l bug. Hans has fixed it in a test development snapshot and it will definitely be fixed in the next release. See http://bugzilla.gnome.org/show_bug.cgi?id=571772

Is it the same as bug #349255 ?

> Is it the same as bug #349255 ?

Yes it is, marked as duplicate

I was able to fix it by using the previous version of the v4l webcam driver:
Download the .deb at the bottom of this page:
http://packages.ubuntu.com/intrepid/libv4l-0

Go to the directory you downloaded it, run:
sudo dpkg -i ./libv4l-0_0.5.0-3~intrepid1_i386.deb

Great, this works for me to. Thanks a lot.

great works here with skype too, for 64bit i had to downgrade lib32v4l too, here is what i did:

wget http://de.archive.ubuntu.com/ubuntu/pool/main/libv/libv4l/lib32v4l-0_0.5.0-3~intrepid1_amd64.deb
wget http://de.archive.ubuntu.com/ubuntu/pool/main/libv/libv4l/libv4l-0_0.5.0-3~intrepid1_amd64.deb
sudo dpkg -i libv4l-0_0.5.0-3~intrepid1_amd64.deb lib32v4l-0_0.5.0-3~intrepid1_amd64.deb
echo lib32v4l-0 hold | sudo dpkg --set-selections
echo libv4l-0 hold | sudo dpkg --set-selections

Can we make this a SRU?
I looked at Hans de Goedes patch, it's a trivial one line patch.
I have tested it on my Macbook1,1 and it works fine now.

I have attached a diff and uploaded a patched version to my ppa.

(You can still fix the unnecessary conversion later on.)

libv4l-0.5.98 fixed this bug. (http://people.atrpms.net/~hdegoede/libv4l-0.5.98.tar.gz)

I'm pretty new at this...

Installed lib4vl-0.5.98 without incident on a MacBook 1,1 but the image in Cheese is still green.

I'm using Jaunty and I can confirm this issue. In Jaunty, the default libv4l version is 0.5.8 (http://packages.ubuntu.com/jaunty/libv4l-0).

I installed version 0.5.98 from source as #13 suggests, but that didn't work (picture still green). I also installed version 0.5.9-1 from Karmic with Gdebi, but that didn't work either (both Cheese and Ekiga crash with the error message "memory override").

Finally I got it working by installing version 0.5.99 from source. Here is how:

1. download and unpack http://people.atrpms.net/~hdegoede/libv4l-0.5.99.tar.gz on your computer
2. install build dependencies with command:
  sudo apt-get build-dep libv4l-0
3. go to correct directory:
  cd libv4l-0.5.99/
4. compile:
  make
5. install:
  sudo make install PREFIX=/usr
6. shut down the computer completely and then turn it on again for to camera to reset

Now it works correctly for me!

I guess this bug will be automatically fixed for Karmic if it will contain the libv4l version 0.5.99

I confirmed that this patch is applied upstream in the latest version, I'll sponsor this.

This bug was fixed in the package libv4l - 0.5.9-1ubuntu1

---------------
libv4l (0.5.9-1ubuntu1) karmic; urgency=low

  * libv4lconvert/rgbyuv.c: Fix UYVY->YUV420 conversion. Patch backported from
    upstream. Thanks to Steffen Röcker and Hans de Goede! (LP: #345080)

 -- Martin Pitt <email address hidden> Fri, 03 Jul 2009 18:10:07 +0200

Ok,

I installed libv4l package of karmic: http://packages.ubuntu.com/karmic/libv4l-0
And now works fine, no more green tint image.

Thanks !!!

Hey,

iSight problem here!
Macbook 2,1 with Jaunty
installed the libv4l
Gstreamer gives error (video0) not found
Not even a green color! ;)

lsusb shows ishight as present but no firmware loaded. Idid load isight-firmware-tools! as posted on other threads!

any ideas?

thanks
Edgar

On Sat, Jul 18, 2009 at 4:16 PM, Edgar Mes<email address hidden> wrote:
> iSight problem here!
> Macbook 2,1 with Jaunty
> installed the libv4l
> Gstreamer gives error (video0) not found
> Not even a green color! ;)

Is not related to this bug then, please don't report it here.

> lsusb shows ishight as present but no firmware loaded. Idid load isight-
> firmware-tools! as posted on other threads!
> any ideas?

Check Ubuntu Mactel support first:
https://help.ubuntu.com/community/MacBook2-1/
https://wiki.ubuntu.com/MactelSupportTeam/

I guess you need to SHUTDOWN completely your Macbook, as stated there.

--
Aldrin Martoq
http://aldrin.martoq.cl/

Then your firmware isn't loading and this is not the appropriate bug.
Installing IFT isn't the only step.

Ricky

On Jul 18, 2009, at 3:16 PM, Edgar Mes <email address hidden> wrote:

> Hey,
>
> iSight problem here!
> Macbook 2,1 with Jaunty
> installed the libv4l
> Gstreamer gives error (video0) not found
> Not even a green color! ;)
>
> lsusb shows ishight as present but no firmware loaded. Idid load
> isight-
> firmware-tools! as posted on other threads!
>
> any ideas?
>
> thanks
> Edgar
>
> --
> iSight camera images have green/purple tint
> https://bugs.launchpad.net/bugs/345080
> You received this bug notification because you are a member of Mactel
> Support, which is the registrant for Mactel Support.
>
> Status in Cheese Camera Application: New
> Status in GStreamer Plugins (Good): Invalid
> Status in Mactel Support: New
> Status in “cheese” package in Ubuntu: Invalid
> Status in “libv4l” package in Ubuntu: Fix Released
> Status in cheese in Ubuntu Jaunty: New
> Status in libv4l in Ubuntu Jaunty: New
> Status in cheese in Ubuntu Karmic: Invalid
> Status in libv4l in Ubuntu Karmic: Fix Released
>
> Bug description:
> Binary package hint: cheese
>
> The picture in cheese is green/purple.
> Cheese doesn't set the right colorspace format.
>
> distro: jaunty
> version: cheese 2.25.92-0ubuntu1
>
> device:
> Bus 001 Device 006: ID 05ac:8501 Apple, Inc. Built-in iSight [Micron]
> (uvcvideo)
>
> wrong green/purple picture:
> $ gst-launch-0.10 v4l2src ! ffmpegcolorspace ! ximagesink
>
> right picture with normal colors:
> $ gst-launch-0.10 v4l2src ! video/x-raw-yuv,format=\(fourcc\)
> UYVY,width=640,height=480 ! ffmpegcolorspace ! ximagesink
>
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The patch should also be applied to jaunty.