Ironic. AV1 is the descendant of On2's TrueMotion codecs -- better known as vp3-vp9-av1.
The very first codecs from On2 (then called DuckCorp) -- TrueMotion and TrueMotion2 (used in games such as FF7) -- used a compression technique that did a good job of filtering, then on playback simulating film grain. We used this effect to good advantage, demoing exclusively 24 fps film-sourced material and properly dealing with frame rate using 3/2 pulldown.
The very first codecs from On2 (then called DuckCorp) -- TrueMotion and TrueMotion2 (used in games such as FF7) -- used a compression technique that did a good job of filtering, then on playback simulating film grain. We used this effect to good advantage, demoing exclusively 24 fps film-sourced material and properly dealing with frame rate using 3/2 pulldown.
Everything old is new again...