import cv2
...
VIDEO_STREAM = "/content/drive/My Drive/Colab Notebooks/Millery.avi"
VIDEO_STREAM_OUT = "/content/drive/My Drive/Colab Notebooks/Result.avi"
...
# initialize the video stream and pointer to output video file
vs = cv2.VideoCapture(VIDEO_STREAM)
writer = None
vs.set(cv2.CAP_PROP_POS_FRAMES, 1000);