camera.py

import cv2
from threading import Thread


# 多线程，高效读视频
class WebcamVideoStream:
    def __init__(self, src):
        self.stream = cv2.VideoCapture(src)
        (self.grabbed, self.frame) = self.stream.read()

        self.stopped = False

    def start(self):

        Thread(target=self.update, args=()).start()
        return self

    def update(self):

        while True:

            if self.stopped:
                return

            (self.grabbed, self.frame) = self.stream.read()

    def read(self):

        return self.frame

    def stop(self):

        self.stopped = True


class configs(object):
    def __init__(self):
        self.video_source = 0  # 0代表从摄像头读取视频流