How can I rotate a video?
I am using Ubuntu 12.10. I have some videos that I want to rotate 90 degrees. What software do I use?
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Do you mean rotation on playback or converting it to a rotated version?
As a commandline-user I normally use mplayer:
Convert (requires transcoding):
And here is a graphical tool to do the latter: kdenlive (a kde application from the universe)