Changeset 4 for trunk/DirectShowTools/Samples/FindLargestMediaSample/FindLargestMediaSample.cpp

Timestamp:

Aug 16, 2011, 2:47:23 PM (10 years ago)

Author:

roman

Message:

 

File:

• trunk/DirectShowTools/Samples/FindLargestMediaSample/FindLargestMediaSample.cpp (modified) (4 diffs)

trunk/DirectShowTools/Samples/FindLargestMediaSample/FindLargestMediaSample.cpp

@@ -151 +151 @@
         CComPtr<IFilterGraph2> m_pFilterGraph;
         CComObject<CInspectionFilterSite>* m_pInspectionFilterSite;
+        CComPtr<IUnknown> m_pInspectionFilterSiteUnknown;
         CComPtr<IMediaEventEx> m_pMediaEventEx;
         CComPtr<IMediaControl> m_pMediaControl;
@@ -216 +217 @@
                         pInspectionFilterSite->Initialize(this);
                         ATLENSURE_SUCCEEDED(pInspectionFilter->SetSite(pInspectionFilterSite));
+                        m_pInspectionFilterSiteUnknown = pInspectionFilterSite;
                         m_pInspectionFilterSite = pInspectionFilterSite;
                         #pragma endregion
@@ -241 +243 @@
                 }
                 #pragma region Remove Reference Clock
-                CComQIPtr<IMediaFilter> pMediaFilter = m_pFilterGraph;
-                ATLENSURE_THROW(pMediaFilter, E_NOINTERFACE);
-                ATLENSURE_SUCCEEDED(pMediaFilter->SetSyncSource(NULL));
+                {
+                        const CComQIPtr<IMediaFilter> pMediaFilter = m_pFilterGraph;
+                        ATLENSURE_THROW(pMediaFilter, E_NOINTERFACE);
+                        ATLENSURE_SUCCEEDED(pMediaFilter->SetSyncSource(NULL));
+                }
                 #pragma endregion
                 _tprintf(_T("Running Filter Graph\n"));
@@ -255 +259 @@
                 m_pMediaEventEx = NULL;
                 m_pMediaControl = NULL;
+                m_pFilterGraph = NULL;
                 m_pInspectionFilterSite->Terminate();
                 m_pInspectionFilterSite = NULL;
-                m_pFilterGraph = NULL;
+                m_pInspectionFilterSiteUnknown = NULL;
                 #pragma endregion
                 return S_OK;