126 lines
4.2 KiB
C
126 lines
4.2 KiB
C
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//==========================================================================;
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//
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// Composition.h : Declaration of the custom composition class for gluing WebDVD to ovmixer
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// Copyright (c) Microsoft Corporation 1999.
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef WEBDVDCOMPAR_H
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#define WEBDVDCOMPAR_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 <objectwithsiteimplsec.h>
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#include <compimpl.h>
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#include <seg.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("8D04238E-9FD1-41c6-8DE3-9E1EE309E935")) CWebDVDARComp :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CWebDVDARComp, &__uuidof(CWebDVDARComp)>,
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public IObjectWithSiteImplSec<CWebDVDARComp>,
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public IMSVidCompositionSegmentImpl<CWebDVDARComp>
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{
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public:
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CWebDVDARComp() {}
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virtual ~CWebDVDARComp() {}
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REGISTER_NONAUTOMATION_OBJECT(IDS_PROJNAME,
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IDS_REG_WEBDVDARCOMP_DESC,
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LIBID_MSVidCtlLib,
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__uuidof(CWebDVDARComp));
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CWebDVDARComp)
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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, "CWebDVDARComp::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, "CWebDVDARComp::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, "CWebDVDARComp::Compose() can't compose empty down segment");
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return E_INVALIDARG;
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}
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VWGraphSegment::iterator iNav = std::find_if(up.begin(),
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up.end(),
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arity1_pointer(&IsDVDNavigator));
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if (iNav == up.end()) {
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TRACELM(TRACE_ERROR, "CWebDVDARComp::Compose() upstream segment has no DVD Navigator");
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return E_FAIL;
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}
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ASSERT((*iNav).GetGraph() == m_pGraph);
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DSFilter pNav(*iNav);
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#if 1
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// Code to add mpeg2 video decoder
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CComBSTR decoder(L"{7E2E0DC1-31FD-11D2-9C21-00104B3801F6}");
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CComBSTR decoderName(L"InterVideo Audio Decoder");
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GUID2 decoderGuid(decoder);
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DSFilter pfr(decoderGuid);
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if (!pfr) {
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ASSERT(false);
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return Error(IDS_CANT_CREATE_FILTER, __uuidof(IMSVidWebDVD), E_UNEXPECTED);
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}
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HRESULT hr = m_pGraph->AddFilter(pfr, decoderName);
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if (FAILED(hr)) {
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TRACELSM(TRACE_ERROR, (dbgDump << "IMSVidWebDVD::Load() hr = " << std::hex << hr), "");
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return Error(IDS_CANT_ADD_FILTER, __uuidof(IMSVidWebDVD), hr);
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}
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m_Filters.push_back(pfr);
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#endif
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// video
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hr = m_pGraph.Connect(pNav, pfr, m_Filters);
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if (FAILED(hr)) {
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TRACELM(TRACE_DETAIL, "CWebDVDARComp::Compose() SUCCEEDED");
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return hr;
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}
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for (VWGraphSegment::iterator iStop = down.begin(); iStop != down.end(); ++iStop){
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DSFilter pStop(*iStop);
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hr = m_pGraph.Connect(pfr, pStop, m_Filters, DSGraph::RENDER_ALL_PINS | DSGraph::IGNORE_EXISTING_CONNECTIONS | DSGraph::DO_NOT_LOAD);
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if(SUCCEEDED(hr)){
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m_fComposed = true;
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return NOERROR;
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}
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}
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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 // WEBDVDCOMPAR_H
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// end of file - WebDVDARComp.h
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