camera.cv
Platypush documentation
camera.cv
- class platypush.plugins.camera.cv.CameraCvPlugin(color_transform: Optional[str] = 'COLOR_BGR2RGB', video_type: str = 'XVID', video_writer: str = 'ffmpeg', **kwargs)[source]
Bases:
CameraPlugin
Plugin to control generic cameras over OpenCV.
Requires:
opencv (
pip install opencv-python
)Pillow (
pip install Pillow
)
- __init__(color_transform: Optional[str] = 'COLOR_BGR2RGB', video_type: str = 'XVID', video_writer: str = 'ffmpeg', **kwargs)[source]
- Parameters:
device – Device ID (0 for the first camera, 1 for the second etc.) or path (e.g.
/dev/video0
).video_type – Default video type to use when exporting captured frames to camera (default: 0, infers the type from the video file extension). See here for a reference on the supported types (e.g. ‘MJPEG’, ‘XVID’, ‘H264’, ‘X264’, ‘AVC1’ etc.)
color_transform – Color transformation to apply to the captured frames. See https://docs.opencv.org/3.2.0/d7/d1b/group__imgproc__misc.html for a full list of supported color transformations (default: “
COLOR_RGB2BGR
”)video_writer –
Class to be used to write frames to a video file. Supported values:
ffmpeg
: Use the FFmpeg writer (default, and usually more reliable - it requiresffmpeg
installed).
cv
: Use the native OpenCV writer.
The FFmpeg video writer requires
scikit-video
(pip install scikit-video
) andffmpeg
.kwargs – Extra arguments to be passed up to
platypush.plugins.camera.CameraPlugin
.
- capture_frame(camera: Camera, *args, **kwargs)[source]
Capture a frame from a device using the plugin-specific logic - to be implemented by the derived classes.
- Parameters:
device – An initialized
platypush.plugins.camera.Camera
object.
- prepare_device(device: Camera)[source]
Prepare a device using the plugin-specific logic - to be implemented by the derived classes.
- Parameters:
device – An initialized
platypush.plugins.camera.Camera
object.