-void av_tree_enumerate(struct AVTreeNode *t, void *opaque, int (*cmp)(void *opaque, void *elem), int (*enu)(void *opaque, void *elem));
+void av_tree_enumerate(struct AVTreeNode *t, void *opaque,
+ int (*cmp)(void *opaque, void *elem),
+ int (*enu)(void *opaque, void *elem));