import pickle
import cv2

def recording():
    cap = cv2.VideoCapture(0)

    imgs = []
    counter = 0
    num_recoding = 300
    recoding = False
    while(True):
        result, frame = cap.read()
        cv2.imshow('capture image', frame)
        if cv2.waitKey(30) == 32:
            recoding = True
        if recoding:
            imgs.append(frame)
            print(counter)
            counter += 1
            if counter >= num_recoding:
                break

    with open('frames.dat', 'wb') as f:
        pickle.dump(imgs, f)

def show():
    with open('frames.dat', 'rb') as f:
        imgs = pickle.load(f)
    
    for img in imgs:
        cv2.imshow('recorded image', img)
        cv2.waitKey(1)

if __name__ == '__main__':
    # recording()
    show()