/* 创建VMR，添加、设置VMR */
HRESULT CVMR_Capture::InitializeWindowlessVMR(HWND hWnd)
{
IBaseFilter* pVmr = NULL;
// 创建VMR
HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer, NULL,
CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);
if (SUCCEEDED(hr))
{
//添加VMR到滤波器链表中
hr = m_pGB->AddFilter(pVmr, L"Video Mixing Renderer");
if (SUCCEEDED(hr))
{
// 设置无窗口渲染模式
IVMRFilterConfig* pConfig;
hr = pVmr->QueryInterface(IID_IVMRFilterConfig, (void**)&pConfig);
if( SUCCEEDED(hr))
{
pConfig->SetRenderingMode(VMRMode_Windowless);
pConfig->Release();
}
// 设置传入的窗口为显示窗口
hr = pVmr->QueryInterface(IID_IVMRWindowlessControl, (void**)&m_pWC);
if( SUCCEEDED(hr))
{
m_pWC->SetVideoClippingWindow(hWnd);
}
}
pVmr->Release();
}
return hr;
}
HRESULT CVMR_Capture::InitializeWindowlessVMR(HWND hWnd)
{
IBaseFilter* pVmr = NULL;
// Create the VMR and add it to the filter graph.
HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer, NULL,
CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);
if (SUCCEEDED(hr))
{
hr = m_pGB->AddFilter(pVmr, L"Video Mixing Renderer");
if (SUCCEEDED(hr))
{
// Set the rendering mode and number of streams.
IVMRFilterConfig* pConfig;
hr = pVmr->QueryInterface(IID_IVMRFilterConfig, (void**)&pConfig);
if( SUCCEEDED(hr))
{
pConfig->SetRenderingMode(VMRMode_Windowless);
pConfig->Release();
}
hr = pVmr->QueryInterface(IID_IVMRWindowlessControl, (void**)&m_pWC);
if( SUCCEEDED(hr))
{
m_pWC->SetVideoClippingWindow(hWnd);
}
}
pVmr->Release();
}
return hr;
}
/******************************Public*Routine******************************\
* AddVideoMixingRendererToFG
*
\**************************************************************************/
HRESULT
CMovie::AddVideoMixingRendererToFG()
{
IBaseFilter* pBF = NULL;
HRESULT hRes = CoCreateInstance(CLSID_VideoMixingRenderer9, NULL, CLSCTX_INPROC,
IID_IBaseFilter, (LPVOID *)&pBF);
if(SUCCEEDED(hRes))
{
hRes = m_Fg->AddFilter(pBF, L"Video Mixing Renderer 9");
if(SUCCEEDED(hRes))
{
// Test VMRConfig, VMRMonitorConfig
IVMRFilterConfig9* pConfig;
HRESULT hRes2 = pBF->QueryInterface(IID_IVMRFilterConfig9, (LPVOID *)&pConfig);
if(SUCCEEDED(hRes2))
{
hRes2 = pConfig->SetNumberOfStreams(2);
hRes2 = pConfig->SetRenderingMode(VMR9Mode_Windowless);
//hRes2 = pConfig->SetRenderingPrefs(RenderPrefs_AllowOverlays);
pConfig->Release();
}
IVMRMonitorConfig9* pMonitorConfig;
HRESULT hRes3 = pBF->QueryInterface(IID_IVMRMonitorConfig9, (LPVOID *)&pMonitorConfig);
if(SUCCEEDED(hRes3))
{
UINT iCurrentMonitor;
HRESULT hr4 = pMonitorConfig->GetMonitor(&iCurrentMonitor);
pMonitorConfig->Release();
}
hRes = pBF->QueryInterface(IID_IVMRWindowlessControl9, (LPVOID *)&m_Wc);
}
}
if(pBF)
{
pBF->Release();
}
if(SUCCEEDED(hRes))
{
HRESULT hr = m_Wc->SetVideoClippingWindow(m_hwndApp);
hr = m_Wc->SetAspectRatioMode(VMR_ARMODE_LETTER_BOX);
}
else
{
if(m_Wc)
{
m_Wc->Release();
m_Wc = NULL;
}
}
return hRes;
}
//
// FindSubtitleFilter
//
// be careful with this method, can cause deadlock with CSync::Stop, so should only be called in Run()
HRESULT CTsReaderFilter::FindSubtitleFilter()
{
if( m_pDVBSubtitle )
{
return S_OK;
}
//LogDebug( "FindSubtitleFilter - start");
IEnumFilters * piEnumFilters = NULL;
if (GetFilterGraph() && SUCCEEDED(GetFilterGraph()->EnumFilters(&piEnumFilters)))
{
IBaseFilter * pFilter;
while (piEnumFilters->Next(1, &pFilter, 0) == NOERROR )
{
FILTER_INFO filterInfo;
if (pFilter->QueryFilterInfo(&filterInfo) == S_OK)
{
if (!wcsicmp(L"MediaPortal DVBSub2", filterInfo.achName))
{
HRESULT fhr = pFilter->QueryInterface( IID_IDVBSubtitle2, ( void**)&m_pDVBSubtitle );
assert( fhr == S_OK);
//LogDebug("Testing that DVBSub2 works");
m_pDVBSubtitle->Test(1);
}
filterInfo.pGraph->Release();
}
pFilter->Release();
pFilter = NULL;
}
piEnumFilters->Release();
}
//LogDebug( "FindSubtitleFilter - End");
return S_OK;
}
HRESULT FindFilterInterface(
IGraphBuilder *pGraph, // Pointer to the Filter Graph Manager.
REFGUID iid, // IID of the interface to retrieve.
void **ppUnk) // Receives the interface pointer.
{
if (!pGraph || !ppUnk) return E_POINTER;
HRESULT hr = E_FAIL;
IEnumFilters *pEnum = NULL;
IBaseFilter *pF = NULL;
if (FAILED(pGraph->EnumFilters(&pEnum)))
{
return E_FAIL;
}
// Query every filter for the interface.
while (S_OK == pEnum->Next(1, &pF, 0))
{
hr = pF->QueryInterface(iid, ppUnk);
pF->Release();
if (SUCCEEDED(hr))
{
break;
}
}
pEnum->Release();
return hr;
}
HRESULT CDShowUtility::FindFilterInterface(IGraphBuilder *pGraph, REFGUID iid, void **ppUnk)
{
if (!pGraph || !ppUnk)
{
return E_POINTER;
}
HRESULT hr = E_FAIL;
IEnumFilters *pEnum = NULL;
IBaseFilter *pF = NULL;
if (FAILED(pGraph->EnumFilters(&pEnum)))
{
return E_FAIL;
}
//分别调用 Queryinterface, 枚举filter Graph 中的所有Filter
while (S_OK == pEnum->Next(1, &pF, 0))
{
hr = pF->QueryInterface(iid, ppUnk);
pF->Release();
if (SUCCEEDED(hr))
{
break;
}
}
pEnum->Release();
return hr;
}
HRESULT CBDReaderFilter::FindSubtitleFilter()
{
if (m_pDVBSubtitle)
return S_OK;
HRESULT hr = S_FALSE;
ULONG fetched = 0;
IEnumFilters * piEnumFilters = NULL;
if (GetFilterGraph() && SUCCEEDED(GetFilterGraph()->EnumFilters(&piEnumFilters)))
{
IBaseFilter * pFilter;
while (piEnumFilters->Next(1, &pFilter, &fetched) == NOERROR)
{
FILTER_INFO filterInfo;
if (pFilter->QueryFilterInfo(&filterInfo) == S_OK)
{
if (!wcsicmp(L"MediaPortal DVBSub3", filterInfo.achName))
hr = pFilter->QueryInterface(IID_IDVBSubtitle3, (void**)&m_pDVBSubtitle);
filterInfo.pGraph->Release();
}
pFilter->Release();
pFilter = NULL;
}
piEnumFilters->Release();
}
return hr;
}
HRESULT
recChannel_t::unmap(void)
{
__CONTEXT("recChannel_t::unmap");
IBaseFilter * pFilter = NULL;
int hr =0;
hr = pGraph->FindFilterByName(L"Video Renderer",&pFilter);
if (!hr)
{
IVideoWindow *pWindowInfo = NULL;
hr = pFilter->QueryInterface(IID_IVideoWindow, (void **)&pWindowInfo);
errorCheck(hr);
pWindowInfo->put_Visible(OAFALSE);
pWindowInfo->put_AutoShow(OAFALSE);
pWindowInfo->Release();
}
pControl->StopWhenReady();
#ifdef _WINDOWS
if (fControl)
{
fControl->CWnd::ShowWindow(SW_HIDE);
}
#endif
mapping = false;
return 0;
}
HRESULT FindInterfaceAnywhere(
IGraphBuilder *pGraph,
REFGUID iid,
void **ppUnk)
{
if (!pGraph || !ppUnk) return E_POINTER;
HRESULT hr = E_FAIL;
IEnumFilters *pEnum = 0;
if (FAILED(pGraph->EnumFilters(&pEnum)))
{
return E_FAIL;
}
// Loop through every filter in the graph.
IBaseFilter *pF = 0;
while (S_OK == pEnum->Next(1, &pF, 0))
{
hr = pF->QueryInterface(iid, ppUnk);
if (FAILED(hr))
{
// The filter does not expose the interface, but maybe
// one of its pins does.
hr = FindPinInterface(pF, iid, ppUnk);
}
pF->Release();
if (SUCCEEDED(hr))
{
break;
}
}
pEnum->Release();
return hr;
}
/*****************************Public*Routine******************************\
* FindInterfaceFromFilterGraph
*
\**************************************************************************/
HRESULT
CMovie::FindInterfaceFromFilterGraph(
REFIID iid, // interface to look for
LPVOID *lp // place to return interface pointer in
)
{
IEnumFilters* pEF;
IBaseFilter* pFilter;
// Grab an enumerator for the filter graph.
HRESULT hr = m_Fg->EnumFilters(&pEF);
if(FAILED(hr))
{
return hr;
}
// Check out each filter.
while(pEF->Next(1, &pFilter, NULL) == S_OK)
{
hr = pFilter->QueryInterface(iid, lp);
pFilter->Release();
if(SUCCEEDED(hr))
{
break;
}
}
pEF->Release();
return hr;
}
//查找Filter上某一个接口，只要找到FilterGraph上某一个Filter有该接口即返回
BOOL FindFilterInterface(IGraphBuilder* pGraphBuilder, REFGUID iid, void** ppUnk)
{
if(!pGraphBuilder || !ppUnk)
return FALSE;
IEnumFilters* pEnumFilter = NULL;
IBaseFilter* pFilter = NULL;
if(FAILED(pGraphBuilder->EnumFilters(&pEnumFilter)))
{
return FALSE;
}
HRESULT hr = E_FAIL;
while(S_OK == pEnumFilter->Next(1,&pFilter,NULL))
{
hr = pFilter->QueryInterface(iid,ppUnk);
pFilter->Release();
if(SUCCEEDED(hr))
{
pEnumFilter->Release();
return TRUE;
}
}
pEnumFilter->Release();
return FALSE;
}
//Добавляет к текущему Filter Graph оболочку 'DMOWrapper' и вызывает инициализацию
//DMO объекта с именем lpwDMOName
//Перед вызовом этой функции необходимо вызвать UpdateDMOArray(...) (если она не вызывалась)
//В случае ошибки функция вернет значение меньше нуля
int CDirectShow::AddDMOToFilterGraph(LPCWSTR lpwDMOName)
{
if (!m_pGraphBuilder) return -1;
if (!m_lDMOCount) return -1;
IBaseFilter *pDMOWBaseFilter = NULL;
IDMOWrapperFilter *pDMOWrapper;
for (m_lCounter = 0; m_lCounter < m_lDMOCount; m_lCounter++)
{
if (_wcsicmp(m_lpwDMONames[m_lCounter], lpwDMOName) == 0)
{
if (FAILED(CoCreateInstance(CLSID_DMOWrapperFilter, NULL, CLSCTX_INPROC,
IID_IBaseFilter, (LPVOID *)&pDMOWBaseFilter))) return -1;
if (FAILED(pDMOWBaseFilter->QueryInterface(IID_IDMOWrapperFilter,
(LPVOID *)&pDMOWrapper))) return -1;
pDMOWrapper->Init(m_cDMOCLSIDs[m_lCounter], m_gidRecentDMOCat);
pDMOWrapper->Release();
m_pGraphBuilder->AddFilter(pDMOWBaseFilter, m_lpwDMONames[m_lCounter]);
pDMOWBaseFilter->Release();
}
else
{
if (m_lCounter >= (m_lDMOCount - 1))
return -1; else continue;
}
}
return 0;
}
void CFilterProp::ShowProperties()
{
if ( !pGB ) return;
HRESULT hr;
IBaseFilter *pFilter = NULL;
TCHAR szNameToFind[128];
ISpecifyPropertyPages *pSpecify;
// Read the current filter name from the list box
int nCurSel = m_ListFilters.GetCurSel();
m_ListFilters.GetText(nCurSel, szNameToFind);
// Read the current list box name and find it in the graph
pFilter = FindFilterFromName(szNameToFind);
if (!pFilter)
return;
// Discover if this filter contains a property page
hr = pFilter->QueryInterface(IID_ISpecifyPropertyPages, (void **)&pSpecify);
if (SUCCEEDED(hr))
{
do
{
FILTER_INFO FilterInfo;
hr = pFilter->QueryFilterInfo(&FilterInfo);
if (FAILED(hr))
break;
CAUUID caGUID;
hr = pSpecify->GetPages(&caGUID);
if (FAILED(hr))
break;
pSpecify->Release();
// Display the filter's property page
OleCreatePropertyFrame(
m_hWnd, // Parent window
0, // x (Reserved)
0, // y (Reserved)
FilterInfo.achName, // Caption for the dialog box
1, // Number of filters
(IUnknown **)&pFilter, // Pointer to the filter
caGUID.cElems, // Number of property pages
caGUID.pElems, // Pointer to property page CLSIDs
0, // Locale identifier
0, // Reserved
NULL // Reserved
);
CoTaskMemFree(caGUID.pElems);
FilterInfo.pGraph->Release();
} while(0);
}
pFilter->Release();
}
/******************************Public*Routine******************************\
* AddVideoMixingRendererToFG
*
\**************************************************************************/
HRESULT
CMpegMovie::AddVideoMixingRendererToFG()
{
if ( m_Vw ) {
return FALSE;
} else {
IBaseFilter* pBF = NULL;
HRESULT hRes = CoCreateInstance(CLSID_VideoMixingRenderer,
NULL,
CLSCTX_INPROC,
IID_IBaseFilter,
(LPVOID *)&pBF);
if(SUCCEEDED(hRes))
{
hRes = m_Fg->AddFilter(pBF, L"Video Mixing Renderer");
if(SUCCEEDED(hRes))
{
hRes = SetRenderingMode(pBF, VMRMode_Renderless);
hRes = pBF->QueryInterface(IID_IVMRSurfaceAllocatorNotify,
(LPVOID *)&m_San);
hRes = CreateDefaultAllocatorPresenter();
hRes = m_San->AdviseSurfaceAllocator(MY_USER_ID, this);
}
}
if(pBF)
{
pBF->Release();
}
if(SUCCEEDED(hRes))
{
HRESULT hr = m_Wc->SetVideoClippingWindow(m_hwndApp);
hr = m_Wc->SetAspectRatioMode(VMR_ARMODE_LETTER_BOX);
}
else
{
if(m_Wc)
{
m_Wc->Release();
m_Wc = NULL;
}
}
return hRes;
}
}
HRESULT CFilterProp::EnumFilters()
{
if ( !pGB ) return E_FAIL;
HRESULT hr;
IEnumFilters *pEnum = NULL;
IBaseFilter *pFilter = NULL;
ULONG cFetched;
// Clear filters list box
m_ListFilters.ResetContent();
// Get filter enumerator
hr = pGB->EnumFilters(&pEnum);
if (FAILED(hr))
{
m_ListFilters.AddString(TEXT("<ERROR>"));
return hr;
}
// Enumerate all filters in the graph
while(pEnum->Next(1, &pFilter, &cFetched) == S_OK)
{
FILTER_INFO FilterInfo;
TCHAR szName[256];
hr = pFilter->QueryFilterInfo(&FilterInfo);
if (FAILED(hr))
{
m_ListFilters.AddString(TEXT("<ERROR>"));
}
else
{
ISpecifyPropertyPages *pSpecify;
hr = pFilter->QueryInterface(IID_ISpecifyPropertyPages, (void **)&pSpecify);
if (SUCCEEDED(hr))
{
pSpecify->Release();
// Add the filter name to the filters listbox
USES_CONVERSION;
lstrcpy(szName, W2T(FilterInfo.achName));
m_ListFilters.AddString(szName);
}
FilterInfo.pGraph->Release();
}
pFilter->Release();
}
pEnum->Release();
return hr;
}
HRESULT InitializeWindowlessVMR(void)
{
IBaseFilter* pVmr = NULL;
// Create the VMR and add it to the filter graph.
HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer, NULL,
CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);
if (SUCCEEDED(hr))
{
hr = pGB->AddFilter(pVmr, L"Video Mixing Renderer");
if (SUCCEEDED(hr))
{
// Set the rendering mode and number of streams.
IVMRFilterConfig* pConfig;
hr = pVmr->QueryInterface(IID_IVMRFilterConfig, (void**)&pConfig);
if( SUCCEEDED(hr))
{
hr = pConfig->SetRenderingMode(VMRMode_Windowless);
// Set two streams - video and alpha-blended bitmap
hr = pConfig->SetNumberOfStreams(2);
pConfig->Release();
}
hr = pVmr->QueryInterface(IID_IVMRWindowlessControl, (void**)&pWC);
if( SUCCEEDED(hr))
{
hr = pWC->SetVideoClippingWindow(ghApp);
hr = pWC->SetBorderColor(RGB(0,0,0));
}
// Get alpha-blended bitmap interface
hr = pVmr->QueryInterface(IID_IVMRMixerBitmap, (void**)&pBMP);
}
pVmr->Release();
}
return hr;
}
HRESULT InitializeWindowlessVMR(IBaseFilter **ppVmr9)
{
IBaseFilter* pVmr = NULL;
if (!ppVmr9)
return E_POINTER;
*ppVmr9 = NULL;
// Create the VMR and add it to the filter graph.
HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer9, NULL,
CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);
if (SUCCEEDED(hr))
{
hr = pGB->AddFilter(pVmr, L"Video Mixing Renderer 9");
if (SUCCEEDED(hr))
{
// Set the rendering mode and number of streams
SmartPtr <IVMRFilterConfig9> pConfig;
JIF(pVmr->QueryInterface(IID_IVMRFilterConfig9, (void**)&pConfig));
JIF(pConfig->SetRenderingMode(VMR9Mode_Windowless));
hr = pVmr->QueryInterface(IID_IVMRWindowlessControl9, (void**)&pWC);
if( SUCCEEDED(hr))
{
hr = pWC->SetVideoClippingWindow(ghApp);
hr = pWC->SetBorderColor(RGB(0,0,0));
}
// Get alpha-blended bitmap interface
hr = pVmr->QueryInterface(IID_IVMRMixerBitmap9, (void**)&pBMP);
}
// Don't release the pVmr interface because we are copying it into
// the caller's ppVmr9 pointer
*ppVmr9 = pVmr;
}
return hr;
}
HRESULT CNetworkProvider::RegisterDeviceFilter(IUnknown* pUnkFilterControl,ULONG* ppvRegisitrationContext) {
RegisterDevice* device;
FILTER_INFO filterinfo;
HRESULT hr;
IBaseFilter* filter;
LOG4CPLUS_INFO(logger,"RegisterDeviceFilter start");
IMpeg2Demultiplexer* demux;
if (m_pNetworkProviderPin->GetConnected() != NULL){
hr = m_pNetworkProviderPin->CreateOutputPin(m_pNetworkProviderPin->GetConnected());
}
CAutoLock lock(&m_Lock);
if (pUnkFilterControl == NULL){
return E_POINTER;
}
if (&ppvRegisitrationContext == NULL ){
return E_POINTER;
}
hr = pUnkFilterControl->QueryInterface(IID_IBaseFilter, (void**) &filter);
if (hr != S_OK ){
return S_FALSE;
}
hr = filter->QueryFilterInfo(&filterinfo);
filterinfo.pGraph = NULL;
if (hr != S_OK ){
return S_FALSE;
}
LOG4CPLUS_DEBUG(logger,"RegisterDeviceFilter checks finished");
m_fid = m_fid + 1;
device = new RegisterDevice();
device->id = m_fid;
device->control = filter;
wcstombs( device->name, filterinfo.achName, sizeof(device->name));
ppvRegisitrationContext = &m_fid;
hr = pUnkFilterControl->QueryInterface(IID_IMpeg2Demultiplexer, (void**) &demux);
if (hr == S_OK ){
LOG4CPLUS_DEBUG(logger,"RegisterDeviceFilter device prepared for registration - Name: "<<device->name<<" - "<<m_fid<<" - "<<&m_fid);
device->control = NULL;
delete device;
LOG4CPLUS_INFO(logger,"RegisterDeviceFilter demux skipped");
return S_FALSE;
}else{
LOG4CPLUS_INFO(logger,"RegisterDeviceFilter device prepared for registration - Name: "<<device->name<<" - "<<m_fid<<" - "<<&m_fid);
IBDA_DeviceControl* ctrl;
if( filter->QueryInterface(_uuidof(IBDA_DeviceControl), (void**) &ctrl)==S_OK){
device->deviceControl=ctrl;
}
m_vecDevices.push_back(device);
CheckCapabilities(filter);
}
LOG4CPLUS_DEBUG(logger,"RegisterDeviceFilter finished");
return S_OK;
}
HRESULT Captura::IniciarWindowlessVMR(HWND hWnd)
{
IBaseFilter* pVmr = NULL;
// Crear el VMR y añadirlo al FilterGraph
HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer, NULL,
CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);
if (SUCCEEDED(hr))
{
hr = m_pGB->AddFilter(pVmr, L"Video Mixing Renderer");
if (SUCCEEDED(hr))
{
// Establecer el modo de rendeado
IVMRFilterConfig* pConfig;
hr = pVmr->QueryInterface(IID_IVMRFilterConfig, (void**)&pConfig);
if( SUCCEEDED(hr))
{
pConfig->SetRenderingMode(VMRMode_Windowless);
pConfig->Release();
}
hr = pVmr->QueryInterface(IID_IVMRWindowlessControl, (void**)&m_pWC);
if( SUCCEEDED(hr))
{
m_pWC->SetVideoClippingWindow(hWnd);
}
}
else {
}
pVmr->Release();
}
return hr;
}
void CInMin::Setup()
{
ISpecifyPropertyPages *pSpec = NULL;
IBaseFilter* pBF = m_VideoCaptureDevice.GetIBaseFilter();
if( pBF )
{
if( pBF->QueryInterface(IID_ISpecifyPropertyPages,(void **)&pSpec) == S_OK )
{
if( pSpec )
{
CAUUID cauuid;
pSpec->GetPages(&cauuid);
OleCreatePropertyFrame(0, 30, 30, NULL, 1, (IUnknown **)&pBF, cauuid.cElems, (GUID *)cauuid.pElems, 0, 0, NULL);
CoTaskMemFree(cauuid.pElems);
pSpec->Release();
}
}
}
}
HRESULT VideoCapture::AddSampleGrabber(IBaseFilter** ppGrabberFilter)
{
IBaseFilter* pFilter;
hr = CoCreateInstance(CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER,
IID_IBaseFilter, (void **)&pFilter);
if (FAILED(hr))
return hr;
*ppGrabberFilter = pFilter;
hr = m_pGraph->AddFilter(pFilter, L"Sample Grabber");
if (FAILED(hr)) {
pFilter->Release();
return hr;
}
SAFE_RELEASE(m_pGrabber);
pFilter->QueryInterface(IID_ISampleGrabber, (void **)&m_pGrabber);
AM_MEDIA_TYPE mt;
ZeroMemory(&mt, sizeof(AM_MEDIA_TYPE));
mt.majortype = MEDIATYPE_Video;
mt.subtype = MEDIASUBTYPE_RGB24;
hr = m_pGrabber->SetMediaType(&mt);
if (FAILED(hr)) {
m_pGrabber->Release();
pFilter->Release();
return hr;
}
FreeMediaType(mt);
hr = m_pGrabber->SetOneShot(FALSE);
hr = m_pGrabber->SetBufferSamples(TRUE);
(*ppGrabberFilter)->AddRef();
pFilter->Release();
return hr;
}
HRESULT CDXGraph::RenderFile(CString mSourceFile)
{
if(pGraph != NULL)
{
//pGraph->RenderFile(mSourceFile, NULL);
//add grabber filter
IBaseFilter *pGrabberF = NULL;
this->AddGrabber(&pGrabberF);
//add source filter
IBaseFilter *pSrc;
HRESULT hr = pGraph->AddSourceFilter(mSourceFile, L"Source", &pSrc);
if(FAILED(hr)) return hr;
/*IBaseFilter *pSrc;
HRESULT hr = CoCreateInstance(CLSID_FFSrcFilter, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **)&pSrc);
if (FAILED(hr)) return hr;
hr = pGraph->AddFilter(pSrc, L"SrcFilter");
if (FAILED(hr)) return hr;*/
hr = pSrc->QueryInterface(IID_INetDvr, (void **)&pNetDvr);
if (FAILED(hr)) return hr;
//add renderer filter
IBaseFilter *pRender;
hr = CoCreateInstance(CLSID_VideoRenderer, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **)&pRender);
if (FAILED(hr)) return hr;
hr = pGraph->AddFilter(pRender, L"Renderer");
if (FAILED(hr)) return hr;
hr = ConnectFilters(pGraph, pSrc, pGrabberF, MEDIATYPE_NULL);
hr = ConnectFilters(pGraph, pGrabberF, pRender, MEDIATYPE_NULL);
pGrabberF->Release();
pSrc->Release();
pRender->Release();
//test the graph
SaveGraphFile(pGraph, L"D:\\SliderPlayer_264.grf");
return hr;
}
return E_FAIL;
}
int TffDecoder::loadAVInameAndPreset(void)
{
IEnumFilters *eff=NULL;
int cnt=0;
if (m_pGraph->EnumFilters(&eff)==S_OK)
{
eff->Reset();
IBaseFilter *bff;
while (eff->Next(1,&bff,NULL)==S_OK)
{
CLSID iffclsid;
bff->GetClassID(&iffclsid);
if (iffclsid==CLSID_FFDSHOW) cnt++;
if (AVIname[0]=='\0')
{
FILTER_INFO iff;
bff->QueryFilterInfo(&iff);
IFileSourceFilter *ifsf=NULL;
bff->QueryInterface(IID_IFileSourceFilter,(void**)&ifsf);
if (ifsf)
{
LPOLESTR aviNameL;
ifsf->GetCurFile(&aviNameL,NULL);
ifsf->Release();
WideCharToMultiByte(CP_ACP,0,aviNameL,-1,AVIname,511, NULL, NULL );
if (globalSettings.autoPreset)
{
TpresetSettings *preset=presets.getAutoPreset(AVIname,globalSettings.autoPresetFileFirst);
if (preset)
setPresetPtr(preset);
}
}
if (iff.pGraph) iff.pGraph->Release();
}
bff->Release();
}
eff->Release();
}
return cnt;
}
//查找FilterGraph上某一个接口，不管在Filter还是Pin上，找到即返回
BOOL FindInterface(IGraphBuilder* pGraphBuilder, REFGUID iid, void** ppUnk)
{
if(!pGraphBuilder || !ppUnk)
return FALSE;
HRESULT hr = E_FAIL;
IEnumFilters* pEnumFilter = NULL;
if(FAILED(pGraphBuilder->QueryInterface(&pEnumFilter)))
return FALSE;
BOOL bRet = FALSE;
IBaseFilter* pFilter = NULL;
while(S_OK == pEnumFilter->Next(1,&pFilter,NULL))
{
hr = pFilter->QueryInterface(iid,ppUnk);
if(SUCCEEDED(hr))
{
bRet = TRUE;
pFilter->Release();
break;
}
else
{
bRet = FindPinInterface(pFilter,iid,ppUnk);
if(bRet)
{
pFilter->Release();
break;
}
}
pFilter->Release();
}
pEnumFilter->Release();
return FALSE;
}
void DSManager::initCaptureDevices()
{
HRESULT ret = 0;
VARIANT name;
ICreateDevEnum* devEnum = NULL;
IEnumMoniker* monikerEnum = NULL;
IMoniker* moniker = NULL;
if(m_devices.size() > 0)
{
/* clean up our list in case of reinitialization */
for(std::list<DSCaptureDevice*>::iterator it = m_devices.begin() ; it != m_devices.end() ; ++it)
{
delete *it;
}
m_devices.clear();
}
/* get the available devices list */
ret = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER,
IID_ICreateDevEnum, (void**)&devEnum);
if(FAILED(ret))
{
return;
}
ret = devEnum->CreateClassEnumerator(CLSID_VideoInputDeviceCategory,
&monikerEnum, 0);
/* error or no devices */
if(FAILED(ret) || ret == S_FALSE)
{
devEnum->Release();
return;
}
/* loop and initialize all available capture devices */
while(monikerEnum->Next(1, &moniker, 0) == S_OK)
{
DSCaptureDevice* captureDevice = NULL;
IPropertyBag* propertyBag = NULL;
{
IBaseFilter* cp = NULL;
if(!FAILED(moniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&cp)))
{
IAMVfwCaptureDialogs* vfw = NULL;
if(!FAILED(
cp->QueryInterface(IID_IAMVfwCaptureDialogs, (void**)&vfw)))
{
if(vfw)
{
vfw->Release();
cp->Release();
continue;
}
}
}
}
/* get properties of the device */
ret = moniker->BindToStorage(0, 0, IID_IPropertyBag, (void**)&propertyBag);
if(!FAILED(ret))
{
VariantInit(&name);
ret = propertyBag->Read(L"FriendlyName", &name, 0);
if(FAILED(ret))
{
VariantClear(&name);
propertyBag->Release();
moniker->Release();
continue;
}
/* create a new capture device */
captureDevice = new DSCaptureDevice(name.bstrVal);
/* wprintf(L"%ws\n", name.bstrVal); */
if(captureDevice && captureDevice->initDevice(moniker))
{
/* initialization success, add to the list */
m_devices.push_back(captureDevice);
}
else
{
/* printf("failed to initialize device\n"); */
delete captureDevice;
}
/* clean up */
VariantClear(&name);
propertyBag->Release();
}
moniker->Release();
}
/* cleanup */
monikerEnum->Release();
devEnum->Release();
}
HRESULT CVMR9Subgraph::AddCaptureFilter(LPCWSTR lpPath ,LPCWSTR pszVidComName,LPCWSTR lpszAudDevice ,LPCWSTR pszAudComName ,IMultiVMR9Wizard* pWizard )
{
HRESULT hr = S_OK;
IGraphBuilder* pGb = 0;
ICaptureGraphBuilder2 * pBuild = 0;
IBaseFilter* pStreamFt = 0;
IBaseFilter* pAudFt = 0;
IBaseFilter* pAudCom = 0;//音频压缩
IBaseFilter* pVidCom = 0;//视频压缩
IBaseFilter* pAviMux = 0;
IFileSinkFilter *pSink = 0;//file
IConfigAviMux *pConfigMux = NULL;
CMediaHelper Helper;
if(m_pCapGraph)
hr = DelCaptureFilter();
if(FAILED(hr) || m_pCapGraph)
return E_INVALIDARG;
try
{
// create graph
hr = CoCreateInstance( CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,
IID_IFilterGraph, (void**)&(m_pCapGraph) );
if( FAILED(hr))throw hr;
hr = m_pCapGraph->QueryInterface( IID_IGraphBuilder, (void**)&(pGb) );
if( FAILED(hr))throw hr;
hr = CoCreateInstance(CLSID_CaptureGraphBuilder2, NULL, CLSCTX_INPROC, IID_ICaptureGraphBuilder2, (void **)&pBuild);
if( FAILED(hr))throw hr;
hr =pBuild->SetFiltergraph(pGb);
if( FAILED(hr))throw hr;
//连接输出流filter/////////////////////////////////////////
//
// filter ---> |-------|
// |AVI MUX| ----> Avi File
// sound device ---> |-------|
//
///////////////////////////////////////////////////////////
hr = pWizard->InitializeOutStream(m_dwID);
if( FAILED(hr)) throw hr;
hr = pWizard->GetOutStreamFilter(m_dwID,&pStreamFt);
if( FAILED(hr)) throw hr;
if(pStreamFt == 0) throw E_INVALIDARG;
hr = m_pCapGraph->AddFilter( pStreamFt, L"OutFilter");
if( FAILED(hr))throw hr;
//create AVI MUX Filter
hr = pBuild->SetOutputFileName(&MEDIASUBTYPE_Avi,lpPath, &pAviMux, &pSink);
if( FAILED(hr) || !pAviMux) throw hr;
if(pszVidComName){//视频压缩
hr = Helper.GetVidCompression(pszVidComName,&pVidCom);
if( SUCCEEDED(hr) && pVidCom){
hr = m_pCapGraph->AddFilter(pVidCom,L"VidCom");
if( FAILED(hr) ) throw hr;
}
}
if( lpszAudDevice){//音频采集
hr = Helper.GetAudCapDevice(lpszAudDevice,&pAudFt);
if( FAILED(hr) || !pAudFt) throw hr;
hr = m_pCapGraph->AddFilter(pAudFt,L"AudFt");
if( FAILED(hr) ) throw hr;
if(pszAudComName){
hr = Helper.GetAudCompression(pszAudComName,&pAudCom);
if( FAILED(hr) || !pAudCom) throw hr;
hr = m_pCapGraph->AddFilter(pAudCom,L"AudCom");
if( FAILED(hr) ) throw hr;
}
}
//开始连接
hr = pBuild->RenderStream(0, &MEDIATYPE_Video,pStreamFt,pVidCom,pAviMux);
if( FAILED(hr) ) throw hr;
if(pAudFt){
pBuild->RenderStream(0,0,pAudFt,pAudCom,pAviMux);
if( FAILED(hr) ) throw hr;
hr = pAviMux->QueryInterface(IID_IConfigAviMux, (void**)&pConfigMux);
if( SUCCEEDED(hr)) {
pConfigMux->SetMasterStream(1);
}
}
/*IConfigInterleaving *pInterleave = NULL;
hr = pAviMux->QueryInterface(IID_IConfigInterleaving, (void**)&pInterleave);
if (SUCCEEDED(hr))
{
pInterleave->put_Mode(INTERLEAVE_CAPTURE);
pInterleave->Release();
}*/
//连接完成
hr = CheckConnection(pStreamFt);
if( FAILED(hr))throw hr;
//// Done /////////////////////////////////////////////
// ok, all is rendered, now get MediaControl
hr = m_pCapGraph->QueryInterface( IID_IMediaControl, (void**)&(m_pCapMc) );
if( FAILED(hr))throw hr;
}
catch(HRESULT hr1)
{
hr = hr1;
}
RELEASE(pStreamFt);
RELEASE(pGb);
RELEASE(pBuild);
RELEASE(pConfigMux);
RELEASE(pAudFt);
RELEASE(pAudCom );
RELEASE(pVidCom );
RELEASE(pAviMux );
RELEASE(pSink);
return hr;
}
HRESULT RecordGraph::BuildGraph(CString recordFileName)
{
HRESULT hr;
ICreateDevEnum *pSysAudioCaptureEnum = NULL;
hr = CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC_SERVER, IID_ICreateDevEnum, (void **)&pSysAudioCaptureEnum);
if (FAILED(hr))
{
return hr;
}
IBaseFilter *pAudioCapture = NULL;
IEnumMoniker *pEnumMoniker = NULL;
hr = pSysAudioCaptureEnum->CreateClassEnumerator(CLSID_AudioInputDeviceCategory, &pEnumMoniker, 0);
if (hr == S_OK)
{
IMoniker *pMoniker = NULL;
ULONG fetched;
BOOL findMicrophone = FALSE;
while(pEnumMoniker->Next(1, &pMoniker, &fetched) == S_OK && !findMicrophone)
{
IPropertyBag *pPropBag;
hr = pMoniker->BindToStorage(0, 0, IID_IPropertyBag, (void **)&pPropBag);
if(SUCCEEDED(hr))
{
VARIANT varName;
VariantInit(&varName);
hr = pPropBag->Read(L"FriendlyName", &varName, 0);
if(SUCCEEDED(hr))
{
ASSERT(varName.vt == VT_BSTR);
CString friendlyName(varName.bstrVal);
if(friendlyName.Find(L"Microphone") >= 0)
{
hr = pMoniker->BindToObject(NULL, NULL, IID_IBaseFilter, (void **)&pAudioCapture);
findMicrophone = TRUE;
}
VariantClear(&varName);
pPropBag->Release();
}
}
}
pEnumMoniker->Release();
}
pSysAudioCaptureEnum->Release();
if(pAudioCapture == NULL)
{
return S_FALSE;
}
pBuilder->AddFilter(pAudioCapture, L"Audio Capture");
IBaseFilter *pWaveDest = NULL;
hr = CoCreateInstance(CLSID_WavDest, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **)&pWaveDest);
if(FAILED(hr))
{
return hr;
}
pBuilder->AddFilter(pWaveDest, L"Wave Dest");
IBaseFilter *pFileWriter = NULL;
hr = CoCreateInstance(CLSID_FileWriter, NULL, CLSCTX_INPROC_SERVER, IID_IBaseFilter, (void **)&pFileWriter);
if(FAILED(hr))
{
return hr;
}
pBuilder->AddFilter(pFileWriter, L"File Writer");
IFileSinkFilter *pFileSetter = NULL;
hr = pFileWriter->QueryInterface(IID_IFileSinkFilter, (void **)&pFileSetter);
if(FAILED(hr))
{
return hr;
}
AM_MEDIA_TYPE pmt;
pmt.majortype = MEDIATYPE_Stream;
pmt.subtype = MEDIASUBTYPE_WAVE;
pmt.formattype = FORMAT_WaveFormatEx;
hr = pFileSetter->SetFileName(recordFileName, &pmt);
hr = ConnectFilters(pBuilder, pAudioCapture, pWaveDest, MEDIATYPE_NULL);if(FAILED(hr)) return hr;
hr = ConnectFilters(pBuilder, pWaveDest, pFileWriter, MEDIATYPE_NULL);//if(FAILED(hr)) return hr;
SaveGraphFile(pBuilder, L"D:\\Record.grf");
pFileSetter->Release();
pFileWriter->Release();
pWaveDest->Release();
pAudioCapture->Release();
}
void gui::dx::audio_playerX::initialize_speedup_filter() {
if (speedup_filter_available_valid && !speedup_filter_available) {
// We don't seem to have the filter. Too bad.
return;
}
// Either the filter exists or we haven't tried yet. Let's try to create
// it and remember whether it worked.
IBaseFilter *pNewFilter = NULL;
HRESULT res;
res = CoCreateInstance(CLSID_TPBVupp69, NULL, CLSCTX_INPROC_SERVER,
IID_IBaseFilter, (void**)&pNewFilter);
if (res != S_OK) {
traceX("dx_audio_player: Speedup filter not available, error 0x%x", res);
speedup_filter_available = false;
speedup_filter_available_valid = true;
return;
}
res = m_graph_builder->AddFilter(pNewFilter, NULL);
if (res != S_OK) {
traceX("dx_audio_player: AddFilter(Speedup filter): error 0x%x", res);
pNewFilter->Release();
return;
}
speedup_filter_available = true;
speedup_filter_available_valid = true;
// AM_DBG lib::debugX("dx_audio_player: added speedup filter to graph");
// Next step: find out where we want to add the filter to the graph.
// We iterate over the filter graph, then for each item in the graph
// we iterate over the connected output pins util we find one we like.
IPin *pOutputPin = NULL;
IPin *pInputPin = NULL;
IEnumFilters *pEnumFilters = NULL;
res = m_graph_builder->EnumFilters(&pEnumFilters);
if (res != S_OK) {
traceX("dx_audio_filter: EnumFilters: error 0x%x", res);
return;
}
IBaseFilter *pCurFilter;
while (pOutputPin == NULL && (res=pEnumFilters->Next(1, &pCurFilter, NULL)) == S_OK) {
AM_DBG {
FILTER_INFO info;
LPWSTR vendorInfo;
res = pCurFilter->QueryFilterInfo(&info);
if (res != S_OK) info.achName[0] = 0;
res = pCurFilter->QueryVendorInfo(&vendorInfo);
if (res != S_OK) vendorInfo = L"";
//ambulant::lib::textptr tInfo(info.achName);
//ambulant::lib::textptr tVendorInfo(vendorInfo);
//lib::debugX("dx_audio_filter: filter found: '%s' vendor '%s'", tInfo.c_str(), tVendorInfo.c_str());
}
IEnumPins *pEnumPins;
res = pCurFilter->EnumPins(&pEnumPins);
IPin *pCurPin;
while (pOutputPin == NULL && (res=pEnumPins->Next(1, &pCurPin, NULL)) == S_OK) {
AM_MEDIA_TYPE mediaType;
PIN_DIRECTION curPinDir;
res = pCurPin->QueryDirection(&curPinDir);
HRESULT res2 = pCurPin->ConnectionMediaType(&mediaType);
if (res == S_OK &&
res2 == S_OK &&
curPinDir == PINDIR_OUTPUT &&
mediaType.majortype == MEDIATYPE_Audio&&
mediaType.subtype == MEDIASUBTYPE_PCM){
pOutputPin = pCurPin;
res = pOutputPin->ConnectedTo(&pInputPin);
if (res != S_OK) {
// This output pin was the correct type, but not connected.
// So it cannot be the one we're looking for.
pOutputPin = pInputPin = NULL;
} else {
// Found it!
pOutputPin->AddRef();
pInputPin->AddRef();
}
}
if (res2 == S_OK) {
if (mediaType.cbFormat != 0) {
CoTaskMemFree((PVOID)mediaType.pbFormat);
}
}
pCurPin->Release();
}
if (res != S_FALSE && res != S_OK)
traceX("dx_audio_filter: enumerating pins: error 0x%x", res);
pEnumPins->Release();
pCurFilter->Release();
}
if (res != S_FALSE && res != S_OK)
traceX("dx_audio_filter: enumerating filters: error 0x%x", res);
pEnumFilters->Release();
// We have the correct pins now.
if (pOutputPin) {
traceX("dx_audio_filter: found the right pins!");
} else {
traceX("dx_audio_filter: could not find a good pin");
pOutputPin->Release();
pInputPin->Release();
return;
}
// Now we need to find the pins on our speedup filter.
IPin *pFilterInputPin = NULL;
IPin *pFilterOutputPin = NULL;
IEnumPins *pEnumPins;
res = pNewFilter->EnumPins(&pEnumPins);
IPin *pCurPin;
while (res=pEnumPins->Next(1, &pCurPin, NULL) == S_OK) {
PIN_DIRECTION pinDir;
res = pCurPin->QueryDirection(&pinDir);
//assert(res == S_OK);
if (pinDir == PINDIR_INPUT) {
if (pFilterInputPin) {
traceX("dx_audio_filter: multiple input pins on filter");
goto bad;
}
pFilterInputPin = pCurPin;
pFilterInputPin->AddRef();
} else {
if (pFilterOutputPin) {
traceX("dx_audio_filter: multiple output pins on filter");
goto bad;
}
pFilterOutputPin = pCurPin;
pFilterOutputPin->AddRef();
}
}
if (!pFilterInputPin) {
traceX("dx_audio_filter: no input pin on filter");
goto bad;
}
if (!pFilterOutputPin) {
traceX("dx_audio_filter: no output pin on filter");
goto bad;
}
// We have everything. Sever the old connection and insert the filter.
res = m_graph_builder->Disconnect(pOutputPin);
if (res) {
traceX("dx_audio_filter: Severing old connection: error 0x%x", res);
goto bad;
}
res = m_graph_builder->Disconnect(pInputPin);
if (res) {
traceX("dx_audio_filter: Severing old connection: error 0x%x", res);
goto bad;
}
res = m_graph_builder->Connect(pOutputPin, pFilterInputPin);
if (res) {
traceX("dx_audio_filter: Creating filter input connection: error 0x%x", res);
goto bad;
}
res = m_graph_builder->Connect(pFilterOutputPin, pInputPin);
if (res) {
traceX("dx_audio_filter: Creating filter output connection: error 0x%x", res);
goto bad;
}
// Finally remember the interface to set speedup/slowdown, and register ourselves
// in the global pool (so Amis can change our speed).
res = pNewFilter->QueryInterface(IID_IVuppInterface, (void**) &m_audio_speedup);
if (res != S_OK) {
traceX("dx_audio_filter: filter does not provide IVuppInterface");
goto bad;
}
set_rate(s_current_playback_rate);
bad:
if (pOutputPin) pOutputPin->Release();
if (pInputPin) pInputPin->Release();
if (pFilterOutputPin) pFilterOutputPin->Release();
if (pFilterInputPin) pFilterInputPin->Release();
return;
}
//
// CFilePlayer::BuildGraph(): Builds a AVI/MPEG/.. playback graph rendering via
// OverlayMixer which uses app's given DDraw params.
//
HRESULT CFilePlayer::BuildGraph(HWND hWndApp, LPDIRECTDRAW pDDObj, LPDIRECTDRAWSURFACE pDDPrimary)
{
DbgLog((LOG_TRACE, 5, TEXT("CFilePlayer::BuildGraph() entered"))) ;
HRESULT hr ;
IBaseFilter *pOvM ;
WCHAR achwFileName[MAX_PATH] ;
LPWSTR lpszwFileName = NULL ;
IBaseFilter *pVR ;
// First release any existing interface pointer(s)
ReleaseInterfaces() ;
SetColorKey(253) ; // default magenta for 8bpp
// Check if a file name has been specified; if so, use that
if (lstrlen(GetFileName()) > 0) // if something was specified before
{
#ifdef UNICODE
lstrcpy(achwFileName, GetFileName()) ;
#else
MultiByteToWideChar(CP_ACP, 0, GetFileName(), -1, achwFileName, MAX_PATH) ;
#endif
lpszwFileName = achwFileName ;
}
else // no file specified, but we should have detected it before!!!
return E_FAIL ;
//
// Instantiate Overlay Mixer, add it to the graph and set DDraw params
//
hr = AddOvMToGraph(&pOvM, pDDObj, pDDPrimary) ;
if (FAILED(hr))
{
return E_FAIL ;
}
//
// First render the graph for the selected file
//
hr = m_pGraph->RenderFile(lpszwFileName, NULL) ;
if (S_OK != hr)
{
DbgLog((LOG_ERROR, 0,
TEXT("Rendering the given file didn't succeed completely (Error 0x%lx)"), hr)) ;
m_pGraph->RemoveFilter(pOvM) ; // remove from graph
pOvM->Release() ; // release filter
return E_FAIL ;
}
//
// Because there are some AVI files which on some machines decide to rather go
// through the Color Space Converter filter, just making sure that the OverlayMixer
// is actually being used. Otherwise we have to do some more (bull)work.
//
if (! IsOvMConnected(pOvM) )
{
DbgLog((LOG_TRACE, 1, TEXT("OverlayMixer is not used in the graph. Try again..."))) ;
//
// Check that the specified file has a video stream. Otherwise OverlayMixer
// will never be used and DDraw exclusive mode playback doesn't make any sense.
//
if (FAILED(GetVideoRendererInterface(&pVR)))
{
DbgLog((LOG_TRACE, 1, TEXT("Specified file doesn't have any video stream. Aborting graph building."))) ;
m_pGraph->RemoveFilter(pOvM) ; // remove from graph
pOvM->Release() ; // release filter
return E_FAIL ;
}
//
// Put the video stream to go through the OverlayMixer.
//
hr = PutVideoThroughOvM(pOvM, pVR) ;
if (FAILED(hr))
{
DbgLog((LOG_TRACE, 1, TEXT("Couldn't put video through the OverlayMixer."))) ;
m_pGraph->RemoveFilter(pOvM) ; // remove OvMixer from graph
pOvM->Release() ; // release OvMixer filter
pVR->Release() ; // release VR interface (before giving up)
return E_FAIL ;
}
pVR->Release() ; // done with VR interface
}
//
// We are successful in building the graph. Now the rest...
//
GetInterfaces(hWndApp) ;
// Get IDDrawExclModeVideo interface of the OvMixer and store it
hr = pOvM->QueryInterface(IID_IDDrawExclModeVideo, (LPVOID *)&m_pDDXM) ;
ASSERT(SUCCEEDED(hr)) ;
// Get the color key to be used and store it
hr = GetColorKeyInternal(pOvM) ;
ASSERT(SUCCEEDED(hr)) ;
pOvM->Release() ; // done with it
return S_OK ;
}
HRESULT InitializeWindowlessVMR(void)
{
IBaseFilter* pVmr = NULL;
// Create the VMR and add it to the filter graph.
HRESULT hr = CoCreateInstance(CLSID_VideoMixingRenderer, NULL,
CLSCTX_INPROC, IID_IBaseFilter, (void**)&pVmr);
if (SUCCEEDED(hr))
{
hr = pGB->AddFilter(pVmr, L"Video Mixing Renderer");
if (SUCCEEDED(hr))
{
// Set the rendering mode and number of streams.
IVMRFilterConfig* pConfig;
hr = pVmr->QueryInterface(IID_IVMRFilterConfig, (void**)&pConfig);
if( SUCCEEDED(hr))
{
hr = pConfig->SetRenderingMode(VMRMode_Windowless);
// Set two streams - video and alpha-blended bitmap
hr = pConfig->SetNumberOfStreams(2);
pConfig->Release();
}
hr = pVmr->QueryInterface(IID_IVMRWindowlessControl, (void**)&pWC);
if( SUCCEEDED(hr))
{
hr = pWC->SetVideoClippingWindow(ghApp);
hr = pWC->SetBorderColor(RGB(0,0,0));
}
// Request point filtering (instead of bilinear filtering)
// to improve the text quality. In general, if you are
// not scaling the app Image, you should use point filtering.
// This is very important if you are doing source color keying.
IVMRMixerControl *pMix;
hr = pVmr->QueryInterface(IID_IVMRMixerControl, (void**)&pMix);
if( SUCCEEDED(hr))
{
DWORD dwPrefs=0;
hr = pMix->GetMixingPrefs(&dwPrefs);
if (SUCCEEDED(hr))
{
dwPrefs |= MixerPref_PointFiltering;
dwPrefs &= ~(MixerPref_BiLinearFiltering);
hr = pMix->SetMixingPrefs(dwPrefs);
}
pMix->Release();
}
// Get alpha-blended bitmap interface
hr = pVmr->QueryInterface(IID_IVMRMixerBitmap, (void**)&pBMP);
}
else
Msg(TEXT("Failed to add VMR to graph! hr=0x%x\r\n"), hr);
pVmr->Release();
}
else
Msg(TEXT("Failed to create VMR! hr=0x%x\r\n"), hr);
return hr;
}
