dxva2: Limit allowed number of substreams in CreateVideoProcessor().

dlls/dxva2/main.c

@@ -496,6 +496,12 @@ static HRESULT WINAPI device_manager_processor_service_CreateVideoProcessor(IDir
 
     /* FIXME: validate render target format */
 
+    if (max_substreams >= 16)
+    {
+        WARN("Invalid substreams count %u.\n", max_substreams);
+        return E_INVALIDARG;
+    }
+
     if (!(object = heap_alloc_zero(sizeof(*object))))
         return E_OUTOFMEMORY;
 

dlls/dxva2/tests/dxva2.c

@@ -470,9 +470,7 @@ static void test_video_processor(void)
     /* Number of substreams does not include reference stream. */
     hr = IDirectXVideoProcessorService_CreateVideoProcessor(service, &DXVA2_VideoProcSoftwareDevice, &video_desc,
             D3DFMT_A8R8G8B8, 16, &processor);
-todo_wine
     ok(hr == E_INVALIDARG, "Unexpected hr %#x.\n", hr);
-    if (SUCCEEDED(hr)) IDirectXVideoProcessor_Release(processor);
 
     hr = IDirectXVideoProcessorService_CreateVideoProcessor(service, &DXVA2_VideoProcSoftwareDevice, &video_desc,
             D3DFMT_A8R8G8B8, 15, &processor);