code for providing delay

raw_image = RAWImage(rgb2ycbcr_coefs(8), "lena.png", 64)
    raw_image.pack_rgb()
    packet = Packet(raw_image.data)
    dut.streamer.send(packet)
    for i in range(4):
        yield
    yield from dut.logger.receive()
    yield
    raw_image.set_data(dut.logger.packet)
    raw_image.unpack_ycbcr()
    print(raw_image.y)
    print(raw_image.cb)
    print(raw_image.cr)