The longetivity and ubiquity of the H.264 video codec is astounding. A technical look at how H.264 works, under the hood.
“Imagine you’re watching a tennis match. The camera is fixed on a certain angle. The only thing moving is the ball back and forth. How would you encode this information? You do what you always do, right? You have a 3D array of pixels, two dimensions in space and one in time. Right?”