Thread: GRIP with USB Camera
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Unread 27-01-2016, 00:54
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Re: GRIP with USB Camera
Quote:
Originally Posted by Cobra Commander View Post
I think we are really close to getting this working!

What is setting property #16?

We are getting this error on our deploy:

Code:
Jan 27, 2016 1:53:36 AM edu.wpi.grip.core.Main start
INFO: Loading file /home/lvuser/project.grip
VIDEOIO ERROR: V4L/V4L2: VIDIOC_S_CROP
VIDEOIO ERROR: V4L: setting property #16 is not supported
Jan 27, 2016 1:53:40 AM edu.wpi.grip.core.Main start
INFO: SUCCESS! The project is running in headless mode!
Looking at the OpenCV source code, it seems like it has a lot of video capture properties available for V4L (the Linux video capture API), but most of them are only supported with V4L 2. If you're using V4L 1 and you try to set any property besides the few that are supported, OpenCV prints an error message

This is completely harmless. Since we don't do anything to manually configure camera settings in GRIP, any properties that get set are just by OpenCV trying to set up some defaults.

Is the project working otherwise? I noticed you have a SUCCESS message and no exceptions.
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GRIP (Graphically Represented Image Processing) - rapidly develop computer vision algorithms for FRC