cv2.namedWindow('GoPro', cv2.CV_WINDOW_AUTOSIZE)
pipe = sp.Popen([FFMPEG_BIN, '-i', VIDEO_URL, '-loglevel', 'quiet', '-an',
    '-f', 'image2pipe', '-pix_fmt', 'bgr24', '-vcodec', 'rawvideo', '-'],
    stdin=sp.PIPE, stdout=sp.PIPE)
streaming m3u8 file with opencv