def METHOD_NAME(art_warning):
    try:
        test_input = np.arange(12).reshape((1, 3, 1, 2, 2))
        video_compression = VideoCompressionPyTorch(video_format="mp4", constant_rate_factor=50, channels_first=True)
        assert np.any(np.not_equal(video_compression(test_input)[0], test_input))
    except ARTTestException as e:
        art_warning(e)