[FFmpeg-user] Rotation Property

[James Ford]

I have some videos that have an incorrect rotation property. This means
that some viewers will rotate it and some will not.

I am looking for a way to reset the rotation property to zero so that the
video will NOT  be rotated.

One of my problems is that all of my searches lead me to ways to rotate the
video. To be clear: I am NOT looking to rotate the video, only to change
the property

Thanks, everyone.