For the love of all things holy, can camera software / smartphone software detect if the user has _initiated_ the recording rotated and adapt appropriately? Alternatively, can we get some simple, easy software which rotates video easily? Pictures are a breeze, video seemingly not. It's 2013 already!
Rotating video on something like a mobile is difficult, there's not much processing power so it will take a while with large videos and drain your battery. As for detecting if the user has "rotated" the phone, how can we know if this isn't intentional? If a user intentionally rotates a phone to achieve a desired effect and we rotate it again this could cause frustration.
A method of solution is perfect if we can forsee from the start, and even prove, that following that method we shall attain our aim. -- Leibnitz