Live Streaming over USB on Ubuntu and Linux, NVIDIA Jetson

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I recently got a fresh Jetson Nano today and was testing OpenCV. I’m posting my Python script below for a basic test. Note that I cut down the resolution to 2K. Also, I’m getting an undervoltage throttling error. I’m going to need to buy a better power supply. However, even with the current throttling issue, I was able to do basic frame resizing test of OpenCV using gstthetauvc. The new unit also does not have a fan and I may be getting thermal throttling as well. I’m making a video of the complete setup from opening the box. I will post here when I complete the video

import cv2

# cap = cv2.VideoCapture(0)
cap = cv2.VideoCapture("thetauvcsrc mode=2K ! decodebin ! autovideoconvert ! video/x-raw,format=BGRx ! queue ! videoconvert ! video/x-raw,format=BGR ! queue ! appsink");


# Check if the webcam is opened correctly
if not cap.isOpened():
    raise IOError("Cannot open webcam")

while True:
    ret, frame = cap.read()
    frame = cv2.resize(frame, None, fx=0.25, fy=0.25, interpolation=cv2.INTER_AREA)
    cv2.imshow('Input', frame)

    c = cv2.waitKey(1)
    if c == 27:
        break

cap.release()
cv2.destroyAllWindows()
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