I have video recorded from an iPhone in Slo mo mode at 240 (ish) FPS. I'd like to add ("burn") a "time code display" to the video. What are my options? Windows programs are acceptable too. I tried iMovie 10. I added a Ticker to detect frame changes. But when I "shared" it to a file, the new frame rate was 29.97 FPS. No good. I'm synchronizing video with oscilloscope data with a program called Diadem. I'm also looking at getting a Casio camera that can do 1000fps.