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

Use the vflip filter

ffmpeg -i input.mov -vf "vflip" output.mp4

Rotate did not work for me and transpose=1 was rotating 90 degrees