import cv2

# Initialize video capture
cap = cv2.VideoCapture('mot.mp4')

# Initialize tracker
tracker = cv2.TrackerCSRT_create()

# Read the first frame
ret, frame = cap.read()
if not ret:
    print("Failed to read video")
    exit()

# Detect initial bounding box
bbox = cv2.selectROI(frame, False)

# Initialize tracker with first frame and bounding box
tracker.init(frame, bbox)

while True:
    ret, frame = cap.read()
    if not ret:
        break

    # Update tracker
    success, bbox = tracker.update(frame)

    if success:
        # Draw bounding box
        p1 = (int(bbox[0]), int(bbox[1]))
        p2 = (int(bbox[0] + bbox[2]), int(bbox[1] + bbox[3]))
        cv2.rectangle(frame, p1, p2, (255,0,0), 2, 1)
    else:
        # Tracking failure
        cv2.putText(frame, "Tracking failure detected", (100,80), cv2.FONT_HERSHEY_SIMPLEX, 0.75,(0,0,255),2)

    # Display result
    cv2.imshow("Tracking", frame)

    # Exit if ESC pressed
    if cv2.waitKey(1) & 0xFF == 27:  # ESC key
        break

cap.release()
cv2.destroyAllWindows()