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116 lines
3.8 KiB
116 lines
3.8 KiB
//==========================================================================;
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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 ANA2ENC_H
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#define ANA2ENC_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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// CAna2EncComp
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class ATL_NO_VTABLE __declspec(uuid("28953661-0231-41db-8986-21FF4388EE9B")) CAna2EncComp :
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public CComObjectRootEx<CComSingleThreadModel>,
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public CComCoClass<CAna2EncComp, &__uuidof(CAna2EncComp)>,
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public IObjectWithSiteImplSec<CAna2EncComp>,
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public IMSVidCompositionSegmentImpl<CAna2EncComp>
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{
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public:
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CAna2EncComp() {}
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virtual ~CAna2EncComp() {}
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REGISTER_NONAUTOMATION_OBJECT(IDS_PROJNAME,
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IDS_REG_ANA2ENCCOMP_DESC,
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LIBID_MSVidCtlLib,
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__uuidof(CAna2EncComp));
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CAna2EncComp)
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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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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, "CVidCtl::Ana2Enc() 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(IMSVidCompositionSegment), E_INVALIDARG);
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}
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if (up.begin() == up.end()) {
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TRACELM(TRACE_ERROR, "CComposition::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, "CComposition::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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for (DSFilterList::reverse_iterator iStart = upF.rbegin(); iStart != upF.rend(); ++iStart) {
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ASSERT((*iStart).GetGraph() == m_pGraph);
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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, 0x10);
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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, "CComposition::Compose() compose didn't connect anything");
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return Error(IDS_CANT_COMPOSE, __uuidof(IMSVidCompositionSegment), E_FAIL);
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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 // ANA2ENC_H
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// end of file - ANA2ENC.h
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