diff --git a/dlls/strmbase/window.c b/dlls/strmbase/window.c
index eea45aa23dc..1ca06f77145 100644
--- a/dlls/strmbase/window.c
+++ b/dlls/strmbase/window.c
@@ -217,6 +217,24 @@ HRESULT WINAPI BaseControlWindow_Destroy(BaseControlWindow *pControlWindow)
     return S_OK;
 }
 
+HRESULT WINAPI BaseControlWindowImpl_QueryInterface(IVideoWindow *iface, REFIID iid, void **out)
+{
+    BaseControlWindow *window = impl_from_IVideoWindow(iface);
+    return IUnknown_QueryInterface(window->pFilter->outer_unk, iid, out);
+}
+
+ULONG WINAPI BaseControlWindowImpl_AddRef(IVideoWindow *iface)
+{
+    BaseControlWindow *window = impl_from_IVideoWindow(iface);
+    return IUnknown_AddRef(window->pFilter->outer_unk);
+}
+
+ULONG WINAPI BaseControlWindowImpl_Release(IVideoWindow *iface)
+{
+    BaseControlWindow *window = impl_from_IVideoWindow(iface);
+    return IUnknown_Release(window->pFilter->outer_unk);
+}
+
 HRESULT WINAPI BaseControlWindowImpl_GetTypeInfoCount(IVideoWindow *iface, UINT *count)
 {
     TRACE("iface %p, count %p.\n", iface, count);
diff --git a/include/wine/strmbase.h b/include/wine/strmbase.h
index a7dda2ed420..2833f5e941f 100644
--- a/include/wine/strmbase.h
+++ b/include/wine/strmbase.h
@@ -430,6 +430,10 @@ HRESULT WINAPI BaseControlWindow_Init(BaseControlWindow *pControlWindow, const I
 HRESULT WINAPI BaseControlWindow_Destroy(BaseControlWindow *pControlWindow);
 
 BOOL WINAPI BaseControlWindowImpl_PossiblyEatMessage(BaseWindow *This, UINT uMsg, WPARAM wParam, LPARAM lParam);
+
+HRESULT WINAPI BaseControlWindowImpl_QueryInterface(IVideoWindow *iface, REFIID iid, void **out);
+ULONG WINAPI BaseControlWindowImpl_AddRef(IVideoWindow *iface);
+ULONG WINAPI BaseControlWindowImpl_Release(IVideoWindow *iface);
 HRESULT WINAPI BaseControlWindowImpl_GetTypeInfoCount(IVideoWindow *iface, UINT*pctinfo);
 HRESULT WINAPI BaseControlWindowImpl_GetTypeInfo(IVideoWindow *iface, UINT iTInfo, LCID lcid, ITypeInfo**ppTInfo);
 HRESULT WINAPI BaseControlWindowImpl_GetIDsOfNames(IVideoWindow *iface, REFIID riid, LPOLESTR*rgszNames, UINT cNames, LCID lcid, DISPID*rgDispId);