fallback if exif data was invalid

    geninfo = items.pop('parameters', None)

    if "exif" in items:

        exif = piexif.load(items["exif"])

        exif_data = items["exif"]

        try:

            exif = piexif.load(exif_data)

        except OSError:

            # memory / exif was not valid so piexif tried to read from a file

            exif = None

        exif_comment = (exif or {}).get("Exif", {}).get(piexif.ExifIFD.UserComment, b'')

        try:

            exif_comment = piexif.helper.UserComment.load(exif_comment)