If you look at the example video, it doesn't depend on the video not being changed, but it does depend on a minimum level of quality. That is, as long as the vi

If you look at the example video, it doesn't depend on the video not being changed, but it does depend on a minimum level of quality. That is, as long as the video quality is high enough (720p in this case) to get back the original black and white pixels, you're fine. The data is not hidden, it's there in plain sight in the video.