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videometadataexiftool

Change or remove "AutoRotation" tag from mp4 video file on Linux

One of my video is upside down. It turns out that the AutoRotation metadata is set wrong to Down whereas it should be Up according to my other videos:

$ exiftool -s input.mp4 | grep AutoRotation
AutoRotation                    : Down

I tried using exiftool from the command line to change the tag:

$ exiftool -AutoRotation=Up input.mp4
Warning: Sorry, AutoRotation is not writable
Nothing to do.

How can I change (or remove) a specific mp4 tag on linux?

Solution

  • The AutoRotation tag is a GoPro specific tag and is unlikely to be editable unless GoPro has a program that edits the metadata it embeds.

    Using exiftool, a better option would be to edit the Rotation tag (e.g. -Rotation=90/180/270), which is actually not a single tag but a case of exiftool manipulating multiple tags in order to achieve the rotation desired (see the entry on the Composite tag page).