The "video" shown is of him pretending that he is playing and pressing buttons while there is a actually a previously recorded MAME replay being played back on the video monitor that he tries to pass off as "live play" on the video. This was an intentional attempt to submit faked evidence in a TG submission. As proof, if you watch the MAME replay it is 34,796 frames which at 60 frames a second, is right at 9 minutes and 40 seconds. He starts MAME 1 minute and 28 seconds into his video. If you watch 11:08 into his video he intentionally zooms into his initials and score so that you can't see the bottom of the screen which would be showing an "End of Playback" window. He doesn't exit MAME until the end of the video at 12:36. If he had actually been recording an INP file, the recorded INP file would be from 1:28 in the video until 12:36 into the video, or 11:08 in length. Instead it is only 9:40 in length. The only explanation for the zoom into his initials/score for a couple of seconds when he does is so you can't see the "End of Playback" window.
As Fly commented on the submission, there are other problems with the replay not matching his actions on the control panel, but the easiest to see is that the length doesn't even match the length of the INP file and the intentional zoom to hide part of the screen when the replayed INP file actually ends.