ff_tread_tag       84 libavcodec/exif.c     ff_tread_tag(gbytes, le, &id, &type, &count, &cur_pos);
ff_tread_tag     1251 libavcodec/tiff.c     ret = ff_tread_tag(&s->gb, s->le, &tag, &type, &count, &start);
ff_tread_tag      149 libavcodec/tiff_common.h int ff_tread_tag(GetByteContext *gb, int le, unsigned *tag, unsigned *type,