diff --git a/libavformat/avio.c b/libavformat/avio.c
index ef4253cbb9..4a29827935 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -50,25 +50,6 @@ static void *urlcontext_child_next(void *obj, void *prev)
     return NULL;
 }
 
-static const AVClass *urlcontext_child_class_next(const AVClass *prev)
-{
-    int i;
-
-    /* find the protocol that corresponds to prev */
-    for (i = 0; ff_url_protocols[i]; i++) {
-        if (ff_url_protocols[i]->priv_data_class == prev) {
-            i++;
-            break;
-        }
-    }
-
-    /* find next protocol with priv options */
-    for (; ff_url_protocols[i]; i++)
-        if (ff_url_protocols[i]->priv_data_class)
-            return ff_url_protocols[i]->priv_data_class;
-    return NULL;
-}
-
 #define OFFSET(x) offsetof(URLContext,x)
 #define E AV_OPT_FLAG_ENCODING_PARAM
 #define D AV_OPT_FLAG_DECODING_PARAM
@@ -76,13 +57,14 @@ static const AVOption options[] = {
     {"protocol_whitelist", "List of protocols that are allowed to be used", OFFSET(protocol_whitelist), AV_OPT_TYPE_STRING, { .str = NULL },  CHAR_MIN, CHAR_MAX, D },
     { NULL }
 };
+
 const AVClass ffurl_context_class = {
     .class_name       = "URLContext",
     .item_name        = urlcontext_to_name,
     .option           = options,
     .version          = LIBAVUTIL_VERSION_INT,
     .child_next       = urlcontext_child_next,
-    .child_class_next = urlcontext_child_class_next,
+    .child_class_next = ff_urlcontext_child_class_next,
 };
 /*@}*/
 
diff --git a/libavformat/protocols.c b/libavformat/protocols.c
index 2c48983c87..266e2c0d6d 100644
--- a/libavformat/protocols.c
+++ b/libavformat/protocols.c
@@ -207,6 +207,26 @@ const URLProtocol *ff_url_protocols[] = {
     NULL,
 };
 
+const AVClass *ff_urlcontext_child_class_next(const AVClass *prev)
+{
+    int i;
+
+    /* find the protocol that corresponds to prev */
+    for (i = 0; ff_url_protocols[i]; i++) {
+        if (ff_url_protocols[i]->priv_data_class == prev) {
+            i++;
+            break;
+        }
+    }
+
+    /* find next protocol with priv options */
+    for (; ff_url_protocols[i]; i++)
+        if (ff_url_protocols[i]->priv_data_class)
+            return ff_url_protocols[i]->priv_data_class;
+    return NULL;
+}
+
+
 const char *avio_enum_protocols(void **opaque, int output)
 {
     const URLProtocol **p = *opaque;
diff --git a/libavformat/url.h b/libavformat/url.h
index 085c24c628..810fd147b1 100644
--- a/libavformat/url.h
+++ b/libavformat/url.h
@@ -309,6 +309,8 @@ void ff_make_absolute_url(char *buf, int size, const char *base,
  */
 AVIODirEntry *ff_alloc_dir_entry(void);
 
+const AVClass *ff_urlcontext_child_class_next(const AVClass *prev);
+
 extern const URLProtocol *ff_url_protocols[];
 
 #endif /* AVFORMAT_URL_H */