+/** Dumps a MacroBlock edge from every Block to its
+ * MacroBlock header.
+ *
+ * This option is off per default.
+ */
+void dump_macroblock_edges(int flag);
+
+/** Dumps a marked blocks with a asterisk in the title.
+ *
+ * This option is off per default.
+ */
+void dump_block_marker_in_title(int flag);
+