import cv2

import numpy as np

import sys

from PyQt5.QtGui import *

from PyQt5.QtCore import *

from PyQt5.QtWidgets import *

import datetime

class Video():

    def __init__(self, capture):

        self.capture = capture

        capture.set(3,960) # set Width

        capture.set(4,2560) # set Height

        self.currentFrame = np.array([])

    def captureFrame(self):

        ret, readFrame = self.capture.read()

        return readFrame

    def captureNextFrame(self):

        ret, readFrame = self.capture.read()

        if (ret == True):

            readFrame=cv2.resize(readFrame, (int(960 / 4), int(2560 / 4)))

            #cv2.waitKey(1)

            self.currentFrame = cv2.cvtColor(readFrame, cv2.COLOR_BGR2RGB)

    def convertFrame(self):

        try:

            height, width = self.currentFrame.shape[:2]

            #print(height, width)

            img = QImage(self.currentFrame, width, height, QImage.Format_RGB888)

            img = QPixmap.fromImage(img)

            #self.previousFrame = self.currentFrame

            return img

        except:

            return None

class win(QMainWindow):

    def __init__(self, parent=None):

        super(win,self).__init__()

        self.setGeometry(250, 80, 960, 2560)

        self.setWindowTitle('camera')

        self.video = Video(cv2.VideoCapture(1))

        print(self.video)

        self._timer = QTimer(self)

        self._timer.timeout.connect(self.play)

        self._timer.start(2)

        self.update()

        self.videoFrame = QLabel('VideoCapture')

        self.videoFrame.setAlignment(Qt.AlignCenter)

        self.setCentralWidget(self.videoFrame)

        self.ret, self.capturedFrame = self.video.capture.read()

    def play(self):

        try:

            nowTime=datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')

            print(nowTime)

            self.video.captureNextFrame()

            self.videoFrame.setPixmap(self.video.convertFrame())

            self.videoFrame.setScaledContents(True)

        except TypeError:

            print('No Frame')

if __name__ == '__main__':

    app = QApplication(sys.argv)

    win = win()

    win.show()

    sys.exit(app.exec_())