135 lines
4.3 KiB
C
135 lines
4.3 KiB
C
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//==========================================================================;
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//
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// Composition.h : Declaration of the custom composition class for gluing analog capture to ovmixer
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// Copyright (c) Microsoft Corporation 1999.
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef SBES2CC_H
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#define SBES2CC_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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// CSbeS2CCComp
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class ATL_NO_VTABLE __declspec(uuid("9193A8F9-0CBA-400e-AA97-EB4709164576")) CSbeS2CCComp :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CSbeS2CCComp, &__uuidof(CSbeS2CCComp)>,
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public IObjectWithSiteImplSec<CSbeS2CCComp>,
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public IMSVidCompositionSegmentImpl<CSbeS2CCComp>
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{
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public:
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CSbeS2CCComp() {}
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virtual ~CSbeS2CCComp() {}
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REGISTER_NONAUTOMATION_OBJECT(IDS_PROJNAME,
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IDS_REG_SBES2CC_DESC,
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LIBID_MSVidCtlLib,
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__uuidof(CSbeS2CCComp));
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CSbeS2CCComp)
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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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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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TRACELM(TRACE_ERROR, "CSbeS2CCComp::Compose()");
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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(CSbeS2CCComp), E_INVALIDARG);
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}
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if (up.begin() == up.end()) {
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TRACELM(TRACE_ERROR, "CSbeS2CCComp::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, "CSbeS2CCComp::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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// do the list backwards
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DSFilterList upF;
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/* for(VWGraphSegment::iterator upStart = up.begin(); upStart != up.end(); ++upStart){
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upF.push_back(*upStart);
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}
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*/
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DSMediaType mtL21(MEDIATYPE_AUXLine21Data, MEDIASUBTYPE_Line21_BytePair);
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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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DSFilter::iterator iPins;
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for(iPins = (*iStart).begin(); iPins != (*iStart).end(); ++iPins){
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DSPin::iterator iMedias;
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for(iMedias = (*iPins).begin(); iMedias != (*iPins).end(); ++iMedias){
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if(mtL21 == (*iMedias)){
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break;
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}
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}
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if(iMedias != (*iPins).end()){
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break;
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}
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}
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if(iPins == (*iStart).end()){
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continue;
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}
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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 pStart(*iStart);
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DSFilter pStop(*iStop);
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HRESULT hr = m_pGraph.Connect(pStart, pStop, m_Filters);
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if (SUCCEEDED(hr)) {
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m_Segments.push_back(up);
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m_Segments.push_back(down);
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m_pDown = m_Segments.end();
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--m_pDown;
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m_pUp = m_pDown;
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--m_pUp;
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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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}
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TRACELM(TRACE_ERROR, "CSbeS2CCComp::Compose() compose didn't connect anything");
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return S_FALSE;
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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 // SBES2CC_H
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// end of file - SBES2CC.h
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