I am trying to change the colorrepresentation of an mp4 file, it got corrupted and the wrong data is set here, its "nclx 9 1 9" but should be "nclx 1 1 1" (BT.709)
handbrake fixes the file but screws up the color because of the incorrect color space flags.
this is what i tried:
exiftool -n -colorrepresentation="nclx 1 1 1" .\VID_20190328_105408.mp4
Warning: Not an integer for IPTC:ColorRepresentation
Nothing to do.
Sorry, but ExifTool doesn't yet write QuickTime:ColorRepresentation, which is presumably the one you need to write.
- Phil