Video exported as 29.97 FPS comes out as 30 FPS

[Ben Hirashima]

I really like Pixelmator's ability to color grade video. However, it's messing up my Final Cut Pro workflow.

If I open a mov file encoded in ProRes 29.97 FPS then export it as ProRes 29.97, it comes out as 30 FPS. Interestingly, Quicktime is fooled into thinking it's 29.97, but Final Cut Pro is not. I think this is because Pixelmator is writing 29.97 to the metadata, but the true frame rate is 30, even though I selected 29.97 when I exported it. This matters because FCP will not let you replace a 29.97 FPS clip with a 30 FPS clip. It would screw up the timing of the project in FCP.

Please fix this!