Troubleshooting v4l2loopback Issues on Jetson with Ubuntu 20.04 in ARM Environment

If you plug a normal USB webcam into the Jetson, does it work with OpenCV?

Is there a reason that the pipeline for gst_loopback is different from the pipeline after the else statement? Did the nvv4l2decoder ! nv3dsink not work in the gst_loopback section?

Did you see this article about using gstthetauvc instead on the Jetson platform?

I tested gstthetauvc on Jetson Nano with OpenCV.