TAG_SUB_IFD      3061 ext/exif/exif.c 			case TAG_SUB_IFD:
TAG_SUB_IFD      3649 ext/exif/exif.c 						entry_tag == TAG_SUB_IFD
TAG_SUB_IFD      3664 ext/exif/exif.c 							case TAG_SUB_IFD:
TAG_SUB_IFD      3674 ext/exif/exif.c 						if (section_index!=SECTION_THUMBNAIL && entry_tag==TAG_SUB_IFD) {