ff_tread_tag(gbytes, le, &id, &type, &count, &cur_pos);
+ if (!bytestream2_tell(gbytes)) {
+ bytestream2_seek(gbytes, cur_pos, SEEK_SET);
+ return 0;
+ }
+
// read count values and add it metadata
// store metadata or proceed with next IFD
ret = ff_tis_ifd(id);