diff --git a/dlls/quartz/tests/vmr9.c b/dlls/quartz/tests/vmr9.c
index fc2794c5cb7..93c2e504a07 100644
--- a/dlls/quartz/tests/vmr9.c
+++ b/dlls/quartz/tests/vmr9.c
@@ -3808,9 +3808,9 @@ static void test_windowless_size(void)
 
     width = height = 0xdeadbeef;
     hr = IVMRWindowlessControl9_GetNativeVideoSize(windowless_control, &width, &height, NULL, NULL);
-    todo_wine ok(hr == S_OK, "Got hr %#x.\n", hr);
-    todo_wine ok(width == 32, "Got width %d.\n", width);
-    todo_wine ok(height == 16, "Got height %d.\n", height);
+    ok(hr == S_OK, "Got hr %#x.\n", hr);
+    ok(width == 32, "Got width %d.\n", width);
+    ok(height == 16, "Got height %d.\n", height);
 
     aspect_width = aspect_height = 0xdeadbeef;
     hr = IVMRWindowlessControl9_GetNativeVideoSize(windowless_control, &width, &height, &aspect_width, &aspect_height);
diff --git a/dlls/quartz/vmr9.c b/dlls/quartz/vmr9.c
index c7ebdc6c573..44ad2965122 100644
--- a/dlls/quartz/vmr9.c
+++ b/dlls/quartz/vmr9.c
@@ -1615,21 +1615,23 @@ static ULONG WINAPI VMR9WindowlessControl_Release(IVMRWindowlessControl9 *iface)
     return IUnknown_Release(This->renderer.filter.outer_unk);
 }
 
-static HRESULT WINAPI VMR9WindowlessControl_GetNativeVideoSize(IVMRWindowlessControl9 *iface, LONG *width, LONG *height, LONG *arwidth, LONG *arheight)
+static HRESULT WINAPI VMR9WindowlessControl_GetNativeVideoSize(IVMRWindowlessControl9 *iface,
+        LONG *width, LONG *height, LONG *aspect_width, LONG *aspect_height)
 {
-    struct quartz_vmr *This = impl_from_IVMRWindowlessControl9(iface);
-    TRACE("(%p/%p)->(%p, %p, %p, %p)\n", iface, This, width, height, arwidth, arheight);
+    struct quartz_vmr *filter = impl_from_IVMRWindowlessControl9(iface);
 
-    if (!width || !height || !arwidth || !arheight)
-    {
-        ERR("Got no pointer\n");
+    TRACE("filter %p, width %p, height %p, aspect_width %p, aspect_height %p.\n",
+            filter, width, height, aspect_width, aspect_height);
+
+    if (!width || !height)
         return E_POINTER;
-    }
 
-    *width = This->bmiheader.biWidth;
-    *height = This->bmiheader.biHeight;
-    *arwidth = This->bmiheader.biWidth;
-    *arheight = This->bmiheader.biHeight;
+    *width = filter->bmiheader.biWidth;
+    *height = filter->bmiheader.biHeight;
+    if (aspect_width)
+        *aspect_width = filter->bmiheader.biWidth;
+    if (aspect_height)
+        *aspect_height = filter->bmiheader.biHeight;
 
     return S_OK;
 }