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116 lines
4.3 KiB
116 lines
4.3 KiB
//==========================================================================;
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//
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// Composition.h : Declaration of the custom composition class for gluing sbe source to the vmr
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// Copyright (c) Microsoft Corporation 1999.
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef SBES2VMR_H
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#define SBES2VMR_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 "resource.h" // main symbols
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#include <objectwithsiteimplsec.h>
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#include "dsextend.h"
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/////////////////////////////////////////////////////////////////////////////
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// CSbeS2VmrComp
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class ATL_NO_VTABLE __declspec(uuid("3C4708DC-B181-46a8-8DA8-4AB0371758CD")) CSbeS2VmrComp :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CSbeS2VmrComp, &__uuidof(CSbeS2VmrComp)>,
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public IObjectWithSiteImplSec<CSbeS2VmrComp>,
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public IMSVidCompositionSegmentImpl<CSbeS2VmrComp>
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{
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public:
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CSbeS2VmrComp() {}
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virtual ~CSbeS2VmrComp() {}
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REGISTER_NONAUTOMATION_OBJECT(IDS_PROJNAME,
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IDS_REG_SBES2VMR_DESC,
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LIBID_MSVidCtlLib,
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__uuidof(CSbeS2VmrComp));
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CSbeS2VmrComp)
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COM_INTERFACE_ENTRY(IMSVidCompositionSegment)
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COM_INTERFACE_ENTRY(IMSVidGraphSegment)
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COM_INTERFACE_ENTRY(IObjectWithSite)
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COM_INTERFACE_ENTRY(IPersist)
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END_COM_MAP()
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public:
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PQCreateDevEnum m_pSystemEnum;
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//////////////
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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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VIDPERF_FUNC;
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TRACELM(TRACE_ERROR, "CSbeS2VmrComp::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 (upstream == downstream) {
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return Error(IDS_CANT_COMPOSE_WITH_SELF, __uuidof(IMSVidCompositionSegment), E_INVALIDARG);
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}
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if (up.begin() == up.end()) {
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TRACELM(TRACE_ERROR, "CSbeS2VmrComp::Compose() can't compose empty up segment");
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return NOERROR;
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}
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if (down.begin() == down.end()) {
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TRACELM(TRACE_ERROR, "CSbeS2VmrComp::Compose() can't compose empty down segment");
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// this is not an error, for example, CA is an empty segment.
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return NOERROR;
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}
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// bool vidFound = false;
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// VMR has a bug so we need to connect the video before the cc or no cc will be displayed
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DSMediaType mtVideo(MEDIATYPE_Video);
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for (VWGraphSegment::iterator iStart = up.begin(); iStart != up.end(); ++iStart) {
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ASSERT((*iStart).GetGraph() == m_pGraph);
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for(DSFilter::iterator i = (*iStart).begin(); i != (*iStart).end(); ++i){
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if((*i).GetDirection() == DOWNSTREAM){
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for(DSPin::iterator p = (*i).begin(); p != (*i).end(); ++p){
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if((*p) == mtVideo){
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HRESULT hr = E_FAIL;
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for (VWGraphSegment::iterator iStop = down.begin(); iStop != down.end(); ++ iStop) {
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ASSERT((*iStop).GetGraph() == m_pGraph);
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DSFilter pStop(*iStop);
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hr = (*i).IntelligentConnect(pStop, m_Filters);
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if(SUCCEEDED(hr)){
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return NOERROR;
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}
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}
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}
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}
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}
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}
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}
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TRACELM(TRACE_ERROR, "CSbeS2VmrComp::Compose() compose didn't connect anything");
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return VFW_E_NO_DECOMPRESSOR;
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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 // SBES2VMR_H
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// end of file - SBES2VMR.h
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