GPS_IFD_TAG       563 modules/dng.c          get_tag(IFD_0, GPS_IFD_TAG)->type |= T_SKIP;         // mark entry so it is skipped
GPS_IFD_TAG       624 modules/dng.c          get_tag(IFD_0, GPS_IFD_TAG)->offset = TIFF_HDR_SIZE + (ifd_list[0].count + ifd_list[1].count + ifd_list[2].count) * 12 + 6 + 6 + 6;  // GPS IFD offset