"""USB UVC 소스 (실장비). v4l2 MJPEG. cv2.VideoCapture, 2개 USB3 컨트롤러 분산."""

import cv2


class UvcSource:
    def __init__(self, dev, mjpeg: bool = True):
        self.cap = cv2.VideoCapture(dev)
        if mjpeg:
            self.cap.set(cv2.CAP_PROP_FOURCC, cv2.VideoWriter_fourcc(*"MJPG"))

    def read(self):
        return self.cap.read()