229 lines
7.3 KiB
C++
229 lines
7.3 KiB
C++
//==========================================================================;
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//
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// Copyright (c) Microsoft Corporation 1999-2000.
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//
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//--------------------------------------------------------------------------;
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//
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// MSVidBDATuner.cpp : Implementation of CMSVidBDATuner
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//
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#include "stdafx.h"
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#ifndef TUNING_MODEL_ONLY
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#include "MSVidCtl.h"
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#include "BDATuner.h"
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DEFINE_EXTERN_OBJECT_ENTRY(CLSID_MSVidBDATunerDevice, CMSVidBDATuner)
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/////////////////////////////////////////////////////////////////////////////
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// CMSVidBDATuner
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STDMETHODIMP CMSVidBDATuner::InterfaceSupportsErrorInfo(REFIID riid)
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{
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static const IID* arr[] =
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{
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&IID_IMSVidTuner,
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&__uuidof(CMSVidBDATuner)
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};
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for (int i=0; i < sizeof(arr) / sizeof(arr[0]); i++)
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{
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if (InlineIsEqualGUID(*arr[i],riid))
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return S_OK;
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}
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return S_FALSE;
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}
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HRESULT CMSVidBDATuner::Unload(void) {
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BroadcastUnadvise();
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IMSVidGraphSegmentImpl<CMSVidBDATuner, MSVidSEG_SOURCE, &KSCATEGORY_BDA_RECEIVER_COMPONENT>::Unload();
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m_iNetworkProvider = -1;
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m_iTIF = -1;
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return NOERROR;
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}
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HRESULT CMSVidBDATuner::UpdateTR(TNTuneRequest &tr) {
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PQBDATuner pt(m_Filters[m_iNetworkProvider]);
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return pt->get_TuneRequest(&tr);
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}
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HRESULT CMSVidBDATuner::DoTune(TNTuneRequest &tr) {
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if (m_iNetworkProvider == -1) {
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return S_FALSE;
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}
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PQBDATuner pt(m_Filters[m_iNetworkProvider]);
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if (!pt) {
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return Error(IDS_INVALID_TR, __uuidof(CMSVidBDATuner), DISP_E_TYPEMISMATCH);
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}
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return pt->put_TuneRequest(tr);
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}
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HRESULT CMSVidBDATuner::put_Container(IMSVidGraphSegmentContainer *pCtl) {
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if (!m_fInit) {
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return Error(IDS_OBJ_NO_INIT, __uuidof(CMSVidBDATuner), CO_E_NOTINITIALIZED);
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}
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try {
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if (!pCtl) {
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return Unload();
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}
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if (m_pContainer) {
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if (!m_pContainer.IsEqualObject(VWSegmentContainer(pCtl))) {
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return Error(IDS_OBJ_ALREADY_INIT, __uuidof(CMSVidBDATuner), CO_E_ALREADYINITIALIZED);
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} else {
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return NO_ERROR;
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}
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}
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// DON'T addref the container. we're guaranteed nested lifetimes
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// and an addref creates circular refcounts so we never unload.
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m_pContainer.p = pCtl;
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m_pGraph = m_pContainer.GetGraph();
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if (!m_pCurrentTR) {
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// if we don't have a tune request we can't tell what NP we need.
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return Error(IDS_NO_NP, __uuidof(CMSVidBDATuner), E_FAIL);
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}
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// bring in the right network provider
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if (!m_pSystemEnum) {
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m_pSystemEnum = PQCreateDevEnum(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER);
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}
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DSDevices pnpenum(m_pSystemEnum, KSCATEGORY_BDA_NETWORK_PROVIDER);
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if (!pnpenum) {
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TRACELM(TRACE_ERROR, "CMSVidBDATuner::put_Container() can't create network provider category enumerator");
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return Error(IDS_NO_NP_CAT, __uuidof(CMSVidBDATuner), E_FAIL);
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}
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DSDevices::iterator i = pnpenum.begin();
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DSFilter np;
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for (;i != pnpenum.end(); ++i) {
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np = m_pGraph.AddMoniker(*i);
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if (!np) {
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continue;
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}
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PQTuner pt(np);
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if (pt) {
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HRESULT hr = pt->put_TuningSpace(m_pCurrentTR.TuningSpace());
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if (SUCCEEDED(hr)) {
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hr = pt->put_TuneRequest(m_pCurrentTR);
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if (SUCCEEDED(hr)) {
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break;
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}
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}
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}
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bool rc = m_pGraph.RemoveFilter(np);
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if (!rc) {
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return E_UNEXPECTED;
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}
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}
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if (i == pnpenum.end()) {
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TRACELM(TRACE_ERROR, "CMSVidBDATuner::put_Container() can't load network provider");
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return Error(IDS_NO_NP, __uuidof(CMSVidBDATuner), E_FAIL);
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}
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_ASSERT(!!np);
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m_Filters.push_back(np);
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m_iNetworkProvider = m_Filters.size() - 1;
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TRACELM(TRACE_DETAIL, "CMSVidBDATuner::put_Container() attempting to load tuners from KSCATEGORY_BDA_NETWORK_TUNER");
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HRESULT hr = LoadTunerSection(np, KSCATEGORY_BDA_NETWORK_TUNER);
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if (FAILED(hr)) {
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TRACELM(TRACE_DETAIL, "CMSVidBDATuner::put_Container() attempting to load tuners from KSCATEGORY_BDA_RECEIVER_COMPONENT");
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hr = LoadTunerSection(np, KSCATEGORY_BDA_RECEIVER_COMPONENT);
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if (FAILED(hr)) {
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m_Filters.clear();
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m_iNetworkProvider = -1;
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return hr;
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}
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}
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hr = BroadcastAdvise();
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if (FAILED(hr)) {
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TRACELM(TRACE_ERROR, "CMSVidTVTuner::put_Container() can't advise for broadcast events");
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return E_UNEXPECTED;
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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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return NOERROR;
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}
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HRESULT CMSVidBDATuner::LoadTunerSection(DSFilter& np, const GUID& kscategory) {
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TRACELM(TRACE_DETAIL, "CMSVidBDATuner::LoadTunerSection()");
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DSFilter tuner;
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DSFilterList added;
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DSDevices ptunerenum(m_pSystemEnum, kscategory);
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DSDevices::iterator i = ptunerenum.begin();
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for (; i != ptunerenum.end(); ++i) {
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tuner = m_pGraph.AddMoniker(*i);
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if (!tuner) {
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continue;
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}
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// connect np to decode
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HRESULT hr = m_pGraph.Connect(np, tuner, added);
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if (FAILED(hr)) {
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bool rc = m_pGraph.RemoveFilter(tuner);
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if (!rc) {
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return E_UNEXPECTED;
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}
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continue;
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}
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m_Filters.insert(m_Filters.end(), added.begin(), added.end());
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added.clear();
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// bring in the all right tifs
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DSDevices ptife(m_pSystemEnum, KSCATEGORY_BDA_TRANSPORT_INFORMATION);
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DSDevices::iterator itif = ptife.begin();
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DSFilter tif;
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int cTIFsAdded = 0;
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for (;itif != ptife.end(); ++itif) {
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tif = m_pGraph.AddMoniker(*itif);
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if (!tif) {
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continue;
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}
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// connect np to tif
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hr = m_pGraph.Connect(np, tif, added);
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if (FAILED(hr)) {
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TRACELSM(TRACE_ERROR, (dbgDump << "CMSVidBDATuner::LoadTunerSection() can't connect network provider to transport information filter, trying next tif " << hr), "");
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bool rc = m_pGraph.RemoveFilter(tif);
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if (!rc) {
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return E_UNEXPECTED;
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}
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} else {
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++cTIFsAdded;
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m_Filters.push_back(tif);
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m_iTIF = m_Filters.size() - 1;
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m_Filters.insert(m_Filters.end(), added.begin(), added.end());
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added.clear();
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}
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}
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if (cTIFsAdded) {
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break;
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}
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// no tifs found for this "tuner", try the next one
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bool rc = m_pGraph.RemoveFilter(tuner);
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if (!rc) {
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return E_UNEXPECTED;
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}
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}
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if ( i == ptunerenum.end()) {
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TRACELM(TRACE_ERROR, "CMSVidBDATuner::LoadTunerSection() can't connect network provider to any transport information filters.");
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return Error(IDS_CANT_CONNECT_NP_TIF, __uuidof(CMSVidBDATuner), E_FAIL);
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}
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m_Filters.push_back(tuner);
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m_iTuner = m_Filters.size() - 1;
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return NOERROR;
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}
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HRESULT CMSVidBDATuner::Fire(GUID gEventID) {
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TRACELM(TRACE_DETAIL, "CMSVidBDATuner::Fire()");
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if (gEventID == EVENTID_TuningChanged) {
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Fire_OnTuneChanged(this);
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}
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return NOERROR;
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}
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#endif //TUNING_MODEL_ONLY
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// end of file - MSVidBDATuner.cpp
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