int DoEnumFilter() {
HRESULT hr;
IFilterMapper *pMapper = NULL;
IEnumRegFilters *pEnum = NULL;
IBaseFilter * pFilter = NULL;
hr = CoCreateInstance(CLSID_FilterMapper, NULL, CLSCTX_INPROC, IID_IFilterMapper, (void **)&pMapper);
if(FAILED(hr)){
return 0;
}
hr = pMapper->EnumMatchingFilters(&pEnum,0,FALSE,GUID_NULL,GUID_NULL,FALSE,FALSE,GUID_NULL,GUID_NULL);
REGFILTER *pRF = NULL;
ULONG cFetched;
while (pEnum->Next(1, &pRF, &cFetched) == S_OK) {
SendMessage(g_hList,LB_ADDSTRING,0,(LPARAM)pRF->Name);
CoTaskMemFree(pRF);
hr = CoCreateInstance(pRF->Clsid, NULL, CLSCTX_INPROC
, IID_IBaseFilter, (void **)&pFilter);
SendMessage(g_hList,LB_ADDSTRING,0,(LPARAM)TEXT(" [IN]"));
EnumPins(pFilter,PINDIR_INPUT);
SendMessage(g_hList,LB_ADDSTRING,0,(LPARAM)TEXT(" [OUT]"));
EnumPins(pFilter,PINDIR_OUTPUT);
SAFE_RELEASE(pFilter);
}
// capture device
HANDLE handle = NULL;
DEVMGR_DEVICE_INFORMATION di={sizeof(di)};
GUID guidCamera = { 0xCB998A05, 0x122C, 0x4166, 0x84, 0x6A,0x93, 0x3E, 0x4D, 0x7E, 0x3C, 0x86 };
handle = FindFirstDevice( DeviceSearchByGuid, &guidCamera, &di );
if(( handle == NULL ) || ( di.hDevice == NULL )) {
}else{
SendMessage(g_hList,LB_ADDSTRING,0,(LPARAM)di.szLegacyName );
}
FindClose( handle );
return 1;
}
dsnerror_t CreateGraph(bool buildgraph=false)
{
if (!EnumPins())
return DSN_FAIL_ENUM;
if (!SetInputType())
return DSN_INPUT_NOTACCEPTED;
m_pSFilter = new CSenderFilter();
m_pOurInput = (CSenderPin *) m_pSFilter->GetPin(0);
/* setup Source filename if someone wants to known it (i.e. ffdshow) */
m_pSFilter->Load(m_sfname, NULL);
m_pSFilter->AddRef();
m_pRFilter = new CRenderFilter();
m_pOurOutput = (CRenderPin *) m_pRFilter->GetPin(0);
m_pRFilter->AddRef();
if (buildgraph)
{
DSN_CHECK(CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, IID_IGraphBuilder, (void **) &m_pGraph), DSN_FAIL_GRAPH);
DSN_CHECK(DSVideoCodec::AddToRot(m_pGraph, &m_dwRegister), DSN_FAIL_GRAPH);
DSN_CHECK(m_pGraph->QueryInterface(IID_IMediaControl, (void **) &m_pMC), DSN_FAIL_GRAPH);
m_pGraph->SetLogFile((DWORD_PTR) GetStdHandle(STD_OUTPUT_HANDLE));
DSN_CHECK(m_pGraph->AddFilter(m_pFilter, L"Binary Codec"), (m_pInputPin = m_pOutputPin = NULL, DSN_FAIL_GRAPH));
DSN_CHECK(m_pGraph->AddFilter(m_pSFilter, L"DS Sender"), DSN_FAIL_GRAPH);
DSN_CHECK(m_pGraph->AddFilter(m_pRFilter, L"DS Render"), DSN_FAIL_GRAPH);
// Connect our output pin to codec input pin otherwise QueryAccept on the codec output pin will fail
DSN_CHECK(m_pGraph->ConnectDirect(m_pOurInput, m_pInputPin, &m_pOurType), DSN_INPUT_CONNFAILED);
}
else
{
m_res = m_pFilter->JoinFilterGraph((IFilterGraph *) m_pSFilter, L"DSNative Graph");
/* same of above */
DSN_CHECK(m_pInputPin->ReceiveConnection(m_pOurInput, &m_pOurType), DSN_INPUT_CONNFAILED);
}
SetOutputType();
if (buildgraph)
DSN_CHECK(m_pGraph->ConnectDirect(m_pOurOutput, m_pOutputPin, &m_pDestType), DSN_OUTPUT_CONNFAILED);
else
DSN_CHECK(m_pOutputPin->ReceiveConnection(m_pOurOutput, &m_pDestType), DSN_OUTPUT_CONNFAILED);
m_pOurOutput->SetFrameSize(m_vi.bmiHeader.biBitCount * m_vi.bmiHeader.biWidth * (m_vi.bmiHeader.biHeight + 2) / 8);
return DSN_OK;
}
