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groupgets / LeptonModule

Code for getting started with the FLIR Lepton breakout board
https://groupgets.com/manufacturers/flir/products/flir-lepton
BSD 2-Clause "Simplified" License
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'VIDEOIO ERROR: V4L2: Could not obtain specifics of capture window' when using OpenCV to open Lepton #61

Closed dakodako closed 5 years ago

dakodako commented 5 years ago

I tried to run v4l2lepton to make the lepton as one of the devices that can be opened by OpenCV. Everything ran smoothly until I tried to open the device in OpenCV. I got an error called "VIDEOIO ERROR: V4L2: Could not obtain specifics of capture window" When I ran the command ls -hl /dev/video*, it gave me crw-rw----+ 1 root video 81, 0 Sep 22 04:45 /dev/video0

which I think means that v4l2lepton has been successfully executed. The command I used to ran v4l2lepton is ./v4l2lepton -v /dev/video0 -d /dev/spidev0.1

I am new to OpenCV and Linux. May I ask anyone knows why the error occurred? Thank you very much!

marty-sullivan commented 5 years ago

Is the problem only with OpenCV using the video stream? Or does trying to open /dev/video0 as a capture device with VLC media player also fail?

dakodako commented 5 years ago

Thank you very much for your reply! I successfully got it running now. I realized that it is my fault that I forgot to keep v4l2lepton running when reading the camera from OpenCV.

qingshutie commented 5 years ago

The v4l2lepton does not work on lepton3,can you help me?