> exiftool -v3 -rotation=0 IMG_6161.HEIC
Writing Composite:Rotation (+MatrixStructure):
+Writing Track#:MatrixStructure if tag exists
Writing FotoStation:Rotation if tag exists
Writing PhotoMechanic:Rotation if tag exists
Writing MIE-Orient:Rotation
Writing CanonVRD:Rotation if tag exists
Writing CanonVRD:Rotation if tag exists
Can't convert QuickTime:Rotation (matches more than one PrintConv)
Writing Canon:Rotation if tag exists
Writing Canon:Rotation if tag exists
Writing CanonRaw:Rotation if tag exists
Can't convert Minolta:Rotation (matches more than one PrintConv)
Can't convert Minolta:Rotation (matches more than one PrintConv)
Can't convert Minolta:Rotation (matches more than one PrintConv)
Can't convert Minolta:Rotation (matches more than one PrintConv)
Can't convert Minolta:Rotation (matches more than one PrintConv)
Can't convert Nikon:Rotation (matches more than one PrintConv)
Can't convert Nikon:Rotation (matches more than one PrintConv)
Can't convert Nikon:Rotation (matches more than one PrintConv)
Writing NikonCapture:Rotation if tag exists
Can't convert Panasonic:Rotation (matches more than one PrintConv)
Can't convert Pentax:Rotation (matches more than one PrintConv)
Can't convert Sony:Rotation (matches more than one PrintConv)
Can't convert Sony:Rotation (matches more than one PrintConv)
Can't convert Sony:Rotation (matches more than one PrintConv)
Warning: Can't convert Sony:Rotation (matches more than one PrintConv)
======== IMG_6161.HEIC
Rewriting IMG_6161.HEIC...
  FileType = HEIC
  FileTypeExtension = HEIC
  MIMEType = video/quicktime
  Editing tags in: CanonVRD Composite EXIF ExifIFD FotoStation IFD0 ItemInformation MIE-Orient MOV MakerNotes Meta PhotoMechanic Track#
  Creating tags in: Composite MIE-Orient
  Rewriting Meta
  Rewriting DataInfo
  Rewriting DataRef
    [nothing changed in DataRef]
    [nothing changed in DataInfo]
  Rewriting ItemInformation
    [nothing changed in ItemInformation]
  Rewriting ItemReference
    [nothing changed in ItemReference]
  Rewriting ItemProperties
  Rewriting ItemPropertyContainer
  Rewriting ICC_Profile
    [nothing changed in ICC_Profile]
    [nothing changed in ItemPropertyContainer]
    [nothing changed in ItemProperties]
  Rewriting EXIF
  Rewriting IFD0
  Rewriting ExifIFD
  Rewriting MakerNoteApple
    [nothing changed in MakerNoteApple]
    [nothing changed in ExifIFD]
  Rewriting GPS
    [nothing changed in GPS]
    [nothing changed in IFD0]
    [nothing changed in EXIF]
    [nothing changed in Meta]
Nothing changed in IMG_6161.HEIC
    0 image files updated
    1 image files unchanged