from random import randint
import cv2
import multiprocessing
import time
import sys

class Video:
    def __init__(self, x, y):
        self.x = x
        self.y = y

    def start(self, path):
     
        self.cap = cv2.VideoCapture(path)
        # Check if camera opened successfully
        if (self.cap.isOpened()== False): 
            print("Error opening video  file")

        totalframecount= int(self.cap.get(cv2.CAP_PROP_FRAME_COUNT))

        print("The total number of frames in this video is ", totalframecount)

        i = randint(0, int(totalframecount * 0.9))
        self.cap.set(cv2.CAP_PROP_POS_FRAMES, i)
        
        # Read until video is completed
        fps = self.cap.get(cv2.CAP_PROP_FPS)
        delay = 1/fps * 1000
        print(fps, delay)
        i = 0
        playframes = randint(300, 500)
        while(self.cap.isOpened() ):
            i += 1
            if i > playframes:
                break

            # Capture frame-by-frame
            ret, frame = self.cap.read()
            if ret == True:
            
                # Display the resulting frame
                
                cv2.namedWindow("window", cv2.WND_PROP_FULLSCREEN)
                cv2.moveWindow("window", self.x, self.y)
                cv2.setWindowProperty("window",cv2.WND_PROP_FULLSCREEN,cv2.WINDOW_FULLSCREEN)
                
                cv2.imshow("window", frame)
            
                if cv2.waitKey(int(delay)) & 0xFF == ord('q'):
                    self.cap.release()
                    cv2.destroyAllWindows()
                    sys.exit(0)
                
            # Break the loop
            else: 
                break
        self.cap.release()
        # Closes all the frames
        #cv2.destroyAllWindows()


if __name__ == "__main__":
    video = Video(0, 0)
    video.start("slave/videos/sample-mp4-file.mp4")