senxor.cv_utils

senxor.cv_utils

Thread utilities for Senxor devices.

CVCamThread(video_capture, on_data=None, *, raise_on_backlog=False, backlog_threshold=5)

Parameters:

Name	Type	Description	Default
video_capture	VideoCapture	The video capture to read frames from.	required
on_data	Callable	The callback function to call when a frame is read.	None
raise_on_backlog	bool	Whether to raise an error if the frame buffer backlog exceeds the threshold.	False
backlog_threshold	int	The threshold for the frame buffer backlog.	5

read()

Read the frame from the video capture.

Returns:

Type	Description
ndarray | None	The frame from the video capture.

Raises:

Type	Description
RuntimeError	If the thread is not started.

list_camera_info(backend=0)

List available camera information.

Parameters:

Name	Type	Description	Default
backend	int	The backend to use for camera enumeration. If 0, all supported backends are used.	0

Returns:

Type	Description
list of CameraInfo	List of camera information objects. Use cv2.VideoCapture(camera.index, camera.backend) to open a camera.

Examples:

1. Print all cameras information available.

>>> for camera in list_camera_info():
...     print(camera.index, camera.name, camera.backend)
...     print(camera.path, camera.vid, camera.pid)

1. Connect to a specific camera.

>>> camera_info = list_camera_info()[0]
>>> cap = cv2.VideoCapture(camera_info.index, camera_info.backend)