[Mitchell Page]

You can rotate a compressed video on a Mac platform using MPEG Streamclip (free).

[Mitchell Page]

I have had legitimate reasons for rotating compressed video. I often work with “portrait” video that, while intended for users who rotate their screens, is often previewed on unrotated monitors. The people previewing the video may not have monitors that rotate, so I send them low-res rotated videos.

You can rotate compressed video with MPEG Streamclip on a Macintosh platform. You’ll have to zoom out and crop the left and right edges.