*/
AVIODirEntry *ff_alloc_dir_entry(void);
+#if FF_API_CHILD_CLASS_NEXT
const AVClass *ff_urlcontext_child_class_next(const AVClass *prev);
+#endif
+
+const AVClass *ff_urlcontext_child_class_iterate(void **iter);
/**
* Construct a list of protocols matching a given whitelist and/or blacklist.