*i do not own original video. please contact me if there is any issue.* original video is 720p 25fps, and i wondered how would it be look like in doubled fps. this is comparison of original and 50fps interpolated video for demo. reproduce steps: - first, i downloaded original video using youtube-dl. - then i extracted each frame with ffmpeg. [ffmpeg -hwaccel auto -i original.mp4 "frames/%06d.png"] this step only takes few mins. - this step is main topic. i used rife binary to double frames. [rife_filename -i frames -o newframes] this took around 25mins on my RX590 GPU with full load and little amount of OC. - next, i reassembled processed frames and encoded into single mp4 file with ffmpeg. [ffmpeg -hwaccel auto -framerate 50 -i ./newframes/%08d.png -crf 17 -preset veryfast assembled.mp4] this takes under 10 mins. - finally, i stacked horizontally two videos, original and interpolated. ffmpeg -hwaccel auto -i original.mp4 -i assembled.mp4 -vf [0][1]hstack -crf 17 -preset faster output.mkv] this step also takes under 10 mins. and final output.mkv was uploaded. so, is it worth to use a lot of electricity and 20x more processing time to just watch video in doubled fps? no, at least you are not releasing it to many people. i originally planned to process 10 min video, but turned out it takes too long ... https://www.youtube.com/watch?v=uGO6nox0n1I