1283     _ComPtr<IMFMediaType> pType = NULL;  in initImageGrabber()
1392     _ComPtr<IMFActivate> pSinkActivate = NULL;  in initImageGrabber()
1393     _ComPtr<IMFMediaType> pType = NULL;  in initImageGrabber()
1394     _ComPtr<IMFPresentationDescriptor> pPD = NULL;  in initImageGrabber()
1395     _ComPtr<IMFStreamDescriptor> pSD = NULL;  in initImageGrabber()
1396     _ComPtr<IMFMediaTypeHandler> pHandler = NULL;  in initImageGrabber()
1397     _ComPtr<IMFMediaType> pCurrentType = NULL;  in initImageGrabber()
1483         _ComPtr<IMFMediaEvent> pEvent = NULL;  in startGrabbing()
1549     _ComPtr<IMFPresentationDescriptor> pPD = NULL;  in CreateTopology()
1550     _ComPtr<IMFStreamDescriptor> pSD = NULL;  in CreateTopology()
1551     _ComPtr<IMFMediaTypeHandler> pHandler = NULL;  in CreateTopology()
1552     _ComPtr<IMFTopologyNode> pNode1 = NULL;  in CreateTopology()
1553     _ComPtr<IMFTopologyNode> pNode2 = NULL;  in CreateTopology()
1593     _ComPtr<IMFTopologyNode> pNode = NULL;  in AddSourceNode()
1614     _ComPtr<IMFTopologyNode> pNode = NULL;  in AddOutputNode()
1906     _ComPtr<IMFAttributes> pAttributes = NULL;  in buildListOfDevices()
2323     _ComPtr<IMFAttributes> pAttributes = NULL;  in initDevice()
2560     _ComPtr<IMFPresentationDescriptor> pPD = NULL;  in setDeviceFormat()
2561     _ComPtr<IMFStreamDescriptor> pSD = NULL;  in setDeviceFormat()
2562     _ComPtr<IMFMediaTypeHandler> pHandler = NULL;  in setDeviceFormat()
2563     _ComPtr<IMFMediaType> pType = NULL;  in setDeviceFormat()
2779         _ComPtr<IMFMediaType> pType = NULL;  in enumerateCaptureFormats()
2791     _ComPtr<IMFPresentationDescriptor> pPD = NULL;  in enumerateCaptureFormats()
2792     _ComPtr<IMFStreamDescriptor> pSD = NULL;  in enumerateCaptureFormats()
2793     _ComPtr<IMFMediaTypeHandler> pHandler = NULL;  in enumerateCaptureFormats()
2794     _ComPtr<IMFMediaType> pType = NULL;  in enumerateCaptureFormats()
3824     _ComPtr<IMFSourceResolver> pSourceResolver = NULL;  in open()
3968     _ComPtr<IMFPresentationDescriptor> pPD = NULL;  in enumerateCaptureFormats()
3969     _ComPtr<IMFStreamDescriptor> pSD = NULL;  in enumerateCaptureFormats()
3970     _ComPtr<IMFMediaTypeHandler> pHandler = NULL;  in enumerateCaptureFormats()
3971     _ComPtr<IMFMediaType> pType = NULL;  in enumerateCaptureFormats()
4090     _ComPtr<IMFSinkWriter> sinkWriter;
4243     _ComPtr<IMFAttributes> spAttr;  in InitializeSinkWriter()
4244     _ComPtr<IMFMediaType>  mediaTypeOut;  in InitializeSinkWriter()
4245     _ComPtr<IMFMediaType>  mediaTypeIn;  in InitializeSinkWriter()
4246     _ComPtr<IMFByteStream> spByteStream;  in InitializeSinkWriter()
4343     _ComPtr<IMFSample> sample;  in WriteFrame()
4344     _ComPtr<IMFMediaBuffer> buffer;  in WriteFrame()