INNER CODE UNIT · Python

restart_camera

MIT-SPARK/VGGT-SLAM · main_realtime.py:50

def restart_camera(camera, stop_event=None, retry_delay: float = 2.0):
    """Stop and re-start the camera, retrying until a device is streaming again.

    Used to recover from a mid-session disconnect (e.g. a RealSense USB drop),
    where ``capture()`` raises. Honors ``stop_event`` so the user can still
    cancel while a camera is unplugged. Returns the working camera object, or
    None if aborted via stop_event.
    """
    try:
        camera.stop()
    except Exception:
        pass  # device may already be gone; ignore teardown errors

    attempt = 0
    while stop_event is None or not stop_event.is_set():
        attempt += 1
        try:
            camera.start()

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