>>68997373Even the lower fps profiles youtube offers will not have fractions but whole numbers. That being either 30 or 60fps flat.
29.97, or 59.94 for that matter, will happen in two ways. One is screencapping the other is using a telecine encoding profile
i.e. encoding for NTSC. It used to be a 'blank control frame' that originally was in place for monochrome televisions to work alongside color TV inserted after every 1000th frame. That would be 30 000/1001 or 60 000/1001 which is 29.97 or 59.94.