dora-robomaster / operators /opencv_stream.py
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import cv2
import pyarrow as pa
from dora import Node
node = Node()
# TCP stream URL (replace with your stream URL)
TCP_STREAM_URL = "tcp://192.168.2.1:40921"
# Global variables, change it to adapt your needs
CAMERA_WIDTH = 960
CAMERA_HEIGHT = 540
# Create a VideoCapture object using the TCP stream URL
cap = cv2.VideoCapture(TCP_STREAM_URL)
# Check if the VideoCapture object opened successfully
assert cap.isOpened(), "Error: Could not open video capture."
while True:
# Read a frame from the stream
ret, frame = cap.read()
if not ret:
break # Break the loop when no more frames are available
frame = cv2.resize(frame, (CAMERA_WIDTH, CAMERA_HEIGHT))
node.send_output("image", pa.array(frame.ravel()))
# Release the VideoCapture object and any OpenCV windows
cap.release()
cv2.destroyAllWindows()