83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
#!/usr/bin/env python3
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# /// script
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# requires-python = "<=3.10"
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# dependencies = [
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# "opencv-python",
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# "numpy",
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# ]
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# ///
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import socket
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import numpy as np
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import cv2
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# Debug flag - set to True to see frame reception details
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DEBUG = False
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# Rotation mode - set to rotate incoming data before display
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# Options: None, cv2.ROTATE_90_CLOCKWISE, cv2.ROTATE_90_COUNTERCLOCKWISE, cv2.ROTATE_180
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ROTATION = cv2.ROTATE_90_COUNTERCLOCKWISE # Rotate rows to columns
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# Stream parameters (match your GStreamer sender)
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COLUMN_WIDTH = 4 # Width from 200fps-2456x4pix-cw.ini
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COLUMN_HEIGHT = 2456 # Height from 200fps-2456x4pix-cw.ini
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CHANNELS = 3
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FRAME_SIZE = COLUMN_WIDTH * COLUMN_HEIGHT * CHANNELS # bytes (29472)
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# Display parameters
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DISPLAY_WIDTH = 800 # Width of rolling display in pixels
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DISPLAY_HEIGHT = COLUMN_HEIGHT
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UDP_IP = "0.0.0.0"
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UDP_PORT = 5000
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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sock.bind((UDP_IP, UDP_PORT))
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print(f"Receiving raw {COLUMN_WIDTH}x{COLUMN_HEIGHT} RGB columns on UDP port {UDP_PORT}")
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print(f"Display width: {DISPLAY_WIDTH} pixels (rolling)")
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if DEBUG:
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print(f"Expected frame size: {FRAME_SIZE} bytes")
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cv2.namedWindow("Rolling Column Stream", cv2.WINDOW_NORMAL)
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# Initialize the rolling buffer
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rolling_buffer = np.zeros((DISPLAY_HEIGHT, DISPLAY_WIDTH, CHANNELS), dtype=np.uint8)
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current_column = 0
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frame_count = 0
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while True:
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data, addr = sock.recvfrom(65536)
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if len(data) != FRAME_SIZE:
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if DEBUG:
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print(f"Received {len(data)} bytes (expected {FRAME_SIZE}), skipping...")
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continue
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if DEBUG:
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frame_count += 1
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if frame_count % 30 == 0:
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print(f"Received {frame_count} frames, current column: {current_column}")
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# Parse the incoming data
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frame = np.frombuffer(data, dtype=np.uint8).reshape((COLUMN_WIDTH, COLUMN_HEIGHT, CHANNELS))
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# Apply rotation if configured
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if ROTATION is not None:
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column = cv2.rotate(frame, ROTATION)
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else:
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column = frame
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# Insert the column into the rolling buffer at the current position
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rolling_buffer[:, current_column:current_column+COLUMN_WIDTH, :] = column
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# Move to the next column position, wrapping around when reaching the end
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current_column = (current_column + COLUMN_WIDTH) % DISPLAY_WIDTH
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# Display the rolling buffer
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cv2.imshow("Rolling Column Stream", rolling_buffer)
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if cv2.waitKey(1) == 27: # ESC to quit
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break
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cv2.destroyAllWindows() |