+int64_t ff_lsb2full(StreamContext *stream, int64_t lsb);
+int ff_nut_sp_pos_cmp(const Syncpoint *a, const Syncpoint *b);
+int ff_nut_sp_pts_cmp(const Syncpoint *a, const Syncpoint *b);
+void ff_nut_add_sp(NUTContext *nut, int64_t pos, int64_t back_ptr, int64_t ts);
+void ff_nut_free_sp(NUTContext *nut);
+
+extern const Dispositions ff_nut_dispositions[];
+
+extern const AVMetadataConv ff_nut_metadata_conv[];