[ros-users] the right way to use a custom opencv install with ros?

[Dan Lazewatsky]

Thanks Patrick -
It looks like that did compile against a different version of v4l, but  
something doesn't seem right. When I run my node (it grabs frames from  
a camera and does a few other things), I get:

HIGHGUI ERROR: V4L2: Failed to set control "9963802": Input/output  
error (value 0)
HIGHGUI WARNING: Setting property 9963802 through v4l2 failed. Trying  
with v4l1.
HIGHGUI ERROR: V4L: property #9963802 is not supported
HIGHGUI ERROR: V4L2: Failed to set control "10094850": Input/output  
error (value 176)
HIGHGUI WARNING: Setting property 10094850 through v4l2 failed. Trying  
with v4l1.
HIGHGUI ERROR: V4L: property #10094850 is not supported

and a bunch of
VIDIOC_QUERYMENU: Invalid argument

Am I doing something wrong, or is the ticket not actually resolved?  
I'm using libv4l-dev 0.6.0-1 on Ubuntu 10.04.

Thanks,
-Dan

On Jul 13, 2010, at 4:35 PM, Patrick Mihelich wrote:

> Hi Dan,
>
> If you've modified your ROS opencv install, you can recompile it  
> (without re-checking out from SVN) by doing:
>
> $ roscd opencv2
> $ rm installed
> $ make
>
> -Patrick
>
> On Tue, Jul 13, 2010 at 7:53 AM, Dan Lazewatsky <dlaz at cse.wustl.edu>  
> wrote:
> I need a way to get around this ticket https://code.ros.org/trac/opencv/ticket/376
>  in some stuff I'm doing in ROS, and haven't figured out how to use a
> custom opencv in stall with ROS. Is there a way I can recompile the
> included install in the opencv2 package how the ticket says, or do I
> somehow have to use a separate install? I've tried a few different
> things so far with no success.
>
> Thanks,
> -Dan
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