libdc1394 error:

[abhimohpra]

I am using ubuntu 9.10; whenever i open up a camera the below lines appear.

libdc1394 error: Failed to initialize libdc1394

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",

(video:4247): Gtk-WARNING **: Unable to locate theme engine in module_path: "smooth",
^C
I tried this link but it is not working
"https://bugs.launchpad.net/ubuntu/+source/libdc1394-22/+bug/462453"

I could not find a solution anywhere, please help me out to solve it.

[Rubberman]

What isn't working, the link? Or compiling the libdc1394 from source? If the former,
here is the contents of the posting:

Binary package hint: libdc1394-22

Since installing Ubuntu 9.10 the libdc1394-22 package has stopped to work.
As soon as I try to load the library I get "libdc1394 error: Failed to initialize libdc1394".

Recompiling from the latest sources available on the libdc1394 homepage yields a
library that doesn't have this problem.

ProblemType: Bug
Architecture: i386
Date: Wed Oct 28 01:58:58 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia wl
Package: libdc1394-22 2.1.2-1
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/tcsh
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: libdc1394-22
Uname: Linux 2.6.31-14-generic i686

So, have you tried downloading the source to build/install?

[abhimohpra]

Thanks Rubberman,
Link is working.
I tried to apply solutions as suggested and given in the link which are not working...
I am newbie to Linux so please let me know if do any mistakes.

Solution1:
Have similar problem on Ubuntu 9.10 with latest updates.
Found solution:

There is no file /dev/raw1394 (driver is not loaded)!

$ sudo modprobe raw1394

After this check your permissions on device /dev/raw1394
You must have rw access to this device!
For me it looks like:

$ ls -la /dev/raw1394

crw-rw---- 1 root root 171, 0 2009-10-30 11:34 /dev/raw1394

On my Ubuntu 9.04 system this looks like:

crw-rw---- 1 root disk 171, 0 2009-10-30 11:34 /dev/raw1394

Solution 2:
Finally, to make changes permanent, i added raw1394 to /etc/modules file:

$ echo "raw1394" | sudo tee -a /etc/modules

and created udev rule to change group of /dev/raw1394 device:

$ echo 'KERNEL=="raw1394", GROUP="disk"' | sudo tee -a /etc/udev/rules.d/50-raw1394.rules


These both are not working for me.

Any other workaround?
Thanks,
Prasad

[Rubberman]

Sorry, but I don't have a firewire-enabled camera to check this out with, and neither my laptop nor my workstation have firewire ports, so... Hopefully someone else can help you better.

[abhimohpra]

I have web cam attached to my machine.
Logitech pro 9000 quickcam. I can launch it through "Cheeze" software, but i am trying opencv c++ codes by which it is not enabling it.

[Rubberman]

Well, you could look at the source code for cheeze or vlc to see how they deal with opencv and the libdc1394 initialization problem.