video captured from iphone gets rotated when converted to .mp4 using ffmpeg

Question

When I try to upload videos captured from my iPhone in my app, the server performs a conversion from .mov to .mp4 so that it can be played in other platforms. However the pr

Answer 1

Depending on which version of ffmpeg you have and how it's compiled, one of the following should work...

ffmpeg -vfilters "rotate=90" -i input.mov output.mp4

...or...

ffmpeg -vf "transpose=1" -i input.mov output.mp4