111 lines
3.5 KiB
C
111 lines
3.5 KiB
C
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//==========================================================================;
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//
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// fp2vr.h : Declaration of the custom composition class for gluing file
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// playback to the video renderer
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//
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// Copyright (c) Microsoft Corporation 1999.
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef FP2VRCOMP_H
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#define FP2VRCOMP_H
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#pragma once
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#include <winerror.h>
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#include <algorithm>
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#include <compimpl.h>
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#include <seg.h>
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#include <objectwithsiteimplsec.h>
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#include "resource.h" // main symbols
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/////////////////////////////////////////////////////////////////////////////
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// CAnaCapComp
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class ATL_NO_VTABLE __declspec(uuid("B401C5EB-8457-427f-84EA-A4D2363364B0")) CFP2VRComp :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CFP2VRComp, &__uuidof(CFP2VRComp)>,
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public IObjectWithSiteImplSec<CFP2VRComp>,
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public IMSVidCompositionSegmentImpl<CFP2VRComp>
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{
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public:
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CFP2VRComp() {}
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virtual ~CFP2VRComp() {}
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REGISTER_NONAUTOMATION_OBJECT(IDS_PROJNAME,
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IDS_REG_FP2VRCOMP_DESC,
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LIBID_MSVidCtlLib,
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__uuidof(CFP2VRComp));
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CFP2VRComp)
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COM_INTERFACE_ENTRY(IMSVidCompositionSegment)
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COM_INTERFACE_ENTRY(IMSVidGraphSegment)
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COM_INTERFACE_ENTRY(IPersist)
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COM_INTERFACE_ENTRY(IObjectWithSite)
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END_COM_MAP()
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// IMSVidComposition
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public:
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// IMSVidGraphSegment
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// IMSVidCompositionSegment
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STDMETHOD(Compose)(IMSVidGraphSegment * upstream, IMSVidGraphSegment * downstream)
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{
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TRACELM(TRACE_DEBUG, "CFP2VRComp::Compose()");
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if (m_fComposed) {
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return NOERROR;
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}
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ASSERT(m_pGraph);
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try {
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VWGraphSegment up(upstream);
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ASSERT(up.Graph() == m_pGraph);
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VWGraphSegment down(downstream);
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ASSERT(down.Graph() == m_pGraph);
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if (up.begin() == up.end()) {
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TRACELM(TRACE_ERROR, "CFP2VRComp::Compose() can't compose empty up segment");
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return E_INVALIDARG;
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}
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if (down.begin() == down.end()) {
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TRACELM(TRACE_ERROR, "CFP2VRComp::Compose() can't compose empty down segment");
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return E_INVALIDARG;
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}
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DSFilter pFP(*up.begin());
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VWGraphSegment::iterator iVR;
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VWGraphSegment::iterator prevVR;
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for (iVR = down.begin(); iVR != down.end(); ++iVR) {
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prevVR = iVR;
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}
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DSFilter pVR = DSFilter(*prevVR);
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ASSERT(!!pFP);
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ASSERT(pFP.GetGraph() == m_pGraph);
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ASSERT(!!pVR);
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ASSERT(pVR.GetGraph() == m_pGraph);
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HRESULT hr = m_pGraph.Connect(pFP, pVR, m_Filters,
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DSGraph::ATTEMPT_MERIT_UNLIKELY |
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DSGraph::ALLOW_WILDCARDS |
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DSGraph::IGNORE_MEDIATYPE_ERRORS |
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DSGraph::DONT_TERMINATE_ON_RENDERER |
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DSGraph::BIDIRECTIONAL_MEDIATYPE_MATCHING,
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DOWNSTREAM);
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if (FAILED(hr)) {
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TRACELSM(TRACE_ERROR, (dbgDump << "CFP2VRComp::Compose() FAILED connect hr = " << hexdump(hr)), "");
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return hr;
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}
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m_fComposed = true;
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return NOERROR;
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} catch (ComException &e) {
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return e;
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} catch (...) {
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return E_UNEXPECTED;
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}
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}
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};
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#endif // FP2VRCOMP_H
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// end of file - FP2VRComp.h
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