I've taken a fairly tilted video and want to rotate it to be level, how can I do this? I'm open to any third-party apps but purely apple solutions are better. I have FCPX, but I don't know if I can use that.
- Import the video in FCPX (don't worry about creating optimised/proxy media, etc).
- Create a project and add the clip.
- Use Transform (⇧T) to rotate (and scale) the clip as appropriate.