error: (-215) !buf.empty() && buf.isContinuous() in function imdecode_ while recording with usb camera on TX2

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hello devs,
I’m trying to record full hd video from two usb cameras simultaneously on TX2.
But one of them is showing following error :

ret0, frame0 = video_capture_0.read()
cv2.error: /build/opencv-XDqSFW/opencv-3.2.0+dfsg/modules/imgcodecs/src/loadsave.cpp:637: error: (-215) !buf.empty() && buf.isContinuous() in function imdecode_

I’m using opencv’s cv2.VideoCapture() function in python to record the video.
This is happening only in case of one camera out of two. Other is working fine.
I tried googling the error but no any relevant post or solution found.

2

Hi,
For video capture through v4l2 source. You can refer to
https://devtalk.nvidia.com/default/topic/1065637/jetson-agx-xavier/sony-camera-module-cannot-be-opened-with-opencv-on-xavier/post/5397032/#5397032
R32.3.1 is with OpenCV4.1.1 and no need to run install_opencv4.1.1_Jetson.sh