mf: Copy preferred types when cloning nodes.

dlls/mf/tests/mf.c

@@ -656,6 +656,71 @@ static void test_topology(void)
     IMFTopologyNode_Release(node);
     IMFTopologyNode_Release(node2);
 
+    /* Cloning nodes of different types. */
+    hr = MFCreateTopologyNode(MF_TOPOLOGY_SOURCESTREAM_NODE, &node);
+    ok(hr == S_OK, "Failed to create topology node, hr %#x.\n", hr);
+
+    hr = MFCreateTopologyNode(MF_TOPOLOGY_OUTPUT_NODE, &node2);
+    ok(hr == S_OK, "Failed to create topology node, hr %#x.\n", hr);
+
+    hr = IMFTopologyNode_CloneFrom(node, node2);
+    ok(hr == MF_E_INVALIDREQUEST, "Unexpected hr %#x.\n", hr);
+
+    IMFTopologyNode_Release(node2);
+
+    /* Cloning preferred types. */
+    hr = MFCreateTopologyNode(MF_TOPOLOGY_SOURCESTREAM_NODE, &node2);
+    ok(hr == S_OK, "Failed to create topology node, hr %#x.\n", hr);
+
+    hr = MFCreateMediaType(&mediatype);
+    ok(hr == S_OK, "Failed to create media type, hr %#x.\n", hr);
+
+    hr = IMFTopologyNode_SetOutputPrefType(node2, 0, mediatype);
+    ok(hr == S_OK, "Failed to set preferred type, hr %#x.\n", hr);
+
+    /* Vista checks for additional attributes. */
+    hr = IMFTopologyNode_CloneFrom(node, node2);
+    ok(hr == S_OK || broken(hr == MF_E_ATTRIBUTENOTFOUND) /* Vista */, "Failed to clone a node, hr %#x.\n", hr);
+
+    hr = IMFTopologyNode_GetOutputPrefType(node, 0, &mediatype2);
+    ok(hr == S_OK, "Failed to get preferred type, hr %#x.\n", hr);
+    ok(mediatype == mediatype2, "Unexpected media type.\n");
+
+    IMFMediaType_Release(mediatype2);
+    IMFMediaType_Release(mediatype);
+
+    IMFTopologyNode_Release(node2);
+
+    /* Existing preferred types are not cleared. */
+    hr = MFCreateTopologyNode(MF_TOPOLOGY_SOURCESTREAM_NODE, &node2);
+    ok(hr == S_OK, "Failed to create topology node, hr %#x.\n", hr);
+
+    hr = IMFTopologyNode_GetOutputCount(node, &count);
+    ok(hr == S_OK, "Failed to get output count, hr %#x.\n", hr);
+    ok(count == 1, "Unexpected output count.\n");
+
+    hr = IMFTopologyNode_CloneFrom(node, node2);
+    ok(hr == S_OK || broken(hr == MF_E_ATTRIBUTENOTFOUND) /* Vista */, "Failed to clone a node, hr %#x.\n", hr);
+
+    hr = IMFTopologyNode_GetOutputCount(node, &count);
+    ok(hr == S_OK, "Failed to get output count, hr %#x.\n", hr);
+    ok(count == 1, "Unexpected output count.\n");
+
+    hr = IMFTopologyNode_GetOutputPrefType(node, 0, &mediatype2);
+    ok(hr == S_OK, "Failed to get preferred type, hr %#x.\n", hr);
+    ok(!!mediatype2, "Unexpected media type.\n");
+    IMFMediaType_Release(mediatype2);
+
+    hr = IMFTopologyNode_CloneFrom(node2, node);
+    ok(hr == S_OK || broken(hr == MF_E_ATTRIBUTENOTFOUND) /* Vista */, "Failed to clone a node, hr %#x.\n", hr);
+
+    hr = IMFTopologyNode_GetOutputCount(node2, &count);
+    ok(hr == S_OK, "Failed to get output count, hr %#x.\n", hr);
+    ok(count == 1, "Unexpected output count.\n");
+
+    IMFTopologyNode_Release(node2);
+    IMFTopologyNode_Release(node);
+
     IMFTopology_Release(topology);
 }
 

dlls/mf/topology.c

@@ -1628,7 +1628,9 @@ static HRESULT WINAPI topology_node_CloneFrom(IMFTopologyNode *iface, IMFTopolog
 {
     struct topology_node *node = impl_from_IMFTopologyNode(iface);
     MF_TOPOLOGY_TYPE node_type;
+    IMFMediaType *mediatype;
     IUnknown *object;
+    DWORD count, i;
     TOPOID topoid;
     HRESULT hr;
 
@@ -1656,6 +1658,30 @@ static HRESULT WINAPI topology_node_CloneFrom(IMFTopologyNode *iface, IMFTopolog
     if (SUCCEEDED(hr))
         node->id = topoid;
 
+    if (SUCCEEDED(IMFTopologyNode_GetInputCount(src_node, &count)))
+    {
+        for (i = 0; i < count; ++i)
+        {
+            if (SUCCEEDED(IMFTopologyNode_GetInputPrefType(src_node, i, &mediatype)))
+            {
+                IMFTopologyNode_SetInputPrefType(iface, i, mediatype);
+                IMFMediaType_Release(mediatype);
+            }
+        }
+    }
+
+    if (SUCCEEDED(IMFTopologyNode_GetOutputCount(src_node, &count)))
+    {
+        for (i = 0; i < count; ++i)
+        {
+            if (SUCCEEDED(IMFTopologyNode_GetOutputPrefType(src_node, i, &mediatype)))
+            {
+                IMFTopologyNode_SetOutputPrefType(iface, i, mediatype);
+                IMFMediaType_Release(mediatype);
+            }
+        }
+    }
+
     LeaveCriticalSection(&node->cs);
 
     if (object)