/* * COPYRIGHT: See COPYING in the top level directory * PROJECT: ReactOS WDM Streaming ActiveMovie Proxy * FILE: dll/directx/ksproxy/input_pin.cpp * PURPOSE: InputPin of Proxy Filter * * PROGRAMMERS: Johannes Anderwald (johannes.anderwald@reactos.org) */ #include "precomp.h" const GUID IID_IKsPinPipe = {0xe539cd90, 0xa8b4, 0x11d1, {0x81, 0x89, 0x00, 0xa0, 0xc9, 0x06, 0x28, 0x02}}; const GUID IID_IKsPinEx = {0x7bb38260L, 0xd19c, 0x11d2, {0xb3, 0x8a, 0x00, 0xa0, 0xc9, 0x5e, 0xc2, 0x2e}}; KSPIN_INTERFACE StandardPinInterface = { {STATIC_KSINTERFACESETID_Standard}, KSINTERFACE_STANDARD_STREAMING, 0 }; KSPIN_MEDIUM StandardPinMedium = { {STATIC_KSMEDIUMSETID_Standard}, KSMEDIUM_TYPE_ANYINSTANCE, 0 }; class CInputPin : public IPin, public IKsPropertySet, public IKsControl, public IKsObject, public IKsPinEx, public IMemInputPin, public IKsPinPipe, public IKsPinFactory, public IStreamBuilder, public IKsAggregateControl, public IQualityControl, public ISpecifyPropertyPages { public: typedef std::vectorProxyPluginVector; STDMETHODIMP QueryInterface( REFIID InterfaceId, PVOID* Interface); STDMETHODIMP_(ULONG) AddRef() { InterlockedIncrement(&m_Ref); return m_Ref; } STDMETHODIMP_(ULONG) Release() { InterlockedDecrement(&m_Ref); if (!m_Ref) { delete this; return 0; } return m_Ref; } //IKsPinPipe HRESULT STDMETHODCALLTYPE KsGetPinFramingCache(PKSALLOCATOR_FRAMING_EX *FramingEx, PFRAMING_PROP FramingProp, FRAMING_CACHE_OPS Option); HRESULT STDMETHODCALLTYPE KsSetPinFramingCache(PKSALLOCATOR_FRAMING_EX FramingEx, PFRAMING_PROP FramingProp, FRAMING_CACHE_OPS Option); IPin* STDMETHODCALLTYPE KsGetConnectedPin(); IKsAllocatorEx* STDMETHODCALLTYPE KsGetPipe(KSPEEKOPERATION Operation); HRESULT STDMETHODCALLTYPE KsSetPipe(IKsAllocatorEx *KsAllocator); ULONG STDMETHODCALLTYPE KsGetPipeAllocatorFlag(); HRESULT STDMETHODCALLTYPE KsSetPipeAllocatorFlag(ULONG Flag); GUID STDMETHODCALLTYPE KsGetPinBusCache(); HRESULT STDMETHODCALLTYPE KsSetPinBusCache(GUID Bus); PWCHAR STDMETHODCALLTYPE KsGetPinName(); PWCHAR STDMETHODCALLTYPE KsGetFilterName(); //IPin methods HRESULT STDMETHODCALLTYPE Connect(IPin *pReceivePin, const AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE ReceiveConnection(IPin *pConnector, const AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE Disconnect(); HRESULT STDMETHODCALLTYPE ConnectedTo(IPin **pPin); HRESULT STDMETHODCALLTYPE ConnectionMediaType(AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE QueryPinInfo(PIN_INFO *pInfo); HRESULT STDMETHODCALLTYPE QueryDirection(PIN_DIRECTION *pPinDir); HRESULT STDMETHODCALLTYPE QueryId(LPWSTR *Id); HRESULT STDMETHODCALLTYPE QueryAccept(const AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE EnumMediaTypes(IEnumMediaTypes **ppEnum); HRESULT STDMETHODCALLTYPE QueryInternalConnections(IPin **apPin, ULONG *nPin); HRESULT STDMETHODCALLTYPE EndOfStream(); HRESULT STDMETHODCALLTYPE BeginFlush(); HRESULT STDMETHODCALLTYPE EndFlush(); HRESULT STDMETHODCALLTYPE NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate); // ISpecifyPropertyPages HRESULT STDMETHODCALLTYPE GetPages(CAUUID *pPages); //IKsObject methods HANDLE STDMETHODCALLTYPE KsGetObjectHandle(); //IKsPropertySet HRESULT STDMETHODCALLTYPE Set(REFGUID guidPropSet, DWORD dwPropID, LPVOID pInstanceData, DWORD cbInstanceData, LPVOID pPropData, DWORD cbPropData); HRESULT STDMETHODCALLTYPE Get(REFGUID guidPropSet, DWORD dwPropID, LPVOID pInstanceData, DWORD cbInstanceData, LPVOID pPropData, DWORD cbPropData, DWORD *pcbReturned); HRESULT STDMETHODCALLTYPE QuerySupported(REFGUID guidPropSet, DWORD dwPropID, DWORD *pTypeSupport); //IKsControl HRESULT STDMETHODCALLTYPE KsProperty(PKSPROPERTY Property, ULONG PropertyLength, LPVOID PropertyData, ULONG DataLength, ULONG* BytesReturned); HRESULT STDMETHODCALLTYPE KsMethod(PKSMETHOD Method, ULONG MethodLength, LPVOID MethodData, ULONG DataLength, ULONG* BytesReturned); HRESULT STDMETHODCALLTYPE KsEvent(PKSEVENT Event, ULONG EventLength, LPVOID EventData, ULONG DataLength, ULONG* BytesReturned); //IKsPin HRESULT STDMETHODCALLTYPE KsQueryMediums(PKSMULTIPLE_ITEM* MediumList); HRESULT STDMETHODCALLTYPE KsQueryInterfaces(PKSMULTIPLE_ITEM* InterfaceList); HRESULT STDMETHODCALLTYPE KsCreateSinkPinHandle(KSPIN_INTERFACE& Interface, KSPIN_MEDIUM& Medium); HRESULT STDMETHODCALLTYPE KsGetCurrentCommunication(KSPIN_COMMUNICATION *Communication, KSPIN_INTERFACE *Interface, KSPIN_MEDIUM *Medium); HRESULT STDMETHODCALLTYPE KsPropagateAcquire(); HRESULT STDMETHODCALLTYPE KsDeliver(IMediaSample* Sample, ULONG Flags); HRESULT STDMETHODCALLTYPE KsMediaSamplesCompleted(PKSSTREAM_SEGMENT StreamSegment); IMemAllocator * STDMETHODCALLTYPE KsPeekAllocator(KSPEEKOPERATION Operation); HRESULT STDMETHODCALLTYPE KsReceiveAllocator(IMemAllocator *MemAllocator); HRESULT STDMETHODCALLTYPE KsRenegotiateAllocator(); LONG STDMETHODCALLTYPE KsIncrementPendingIoCount(); LONG STDMETHODCALLTYPE KsDecrementPendingIoCount(); HRESULT STDMETHODCALLTYPE KsQualityNotify(ULONG Proportion, REFERENCE_TIME TimeDelta); // IKsPinEx VOID STDMETHODCALLTYPE KsNotifyError(IMediaSample* Sample, HRESULT hr); //IMemInputPin HRESULT STDMETHODCALLTYPE GetAllocator(IMemAllocator **ppAllocator); HRESULT STDMETHODCALLTYPE NotifyAllocator(IMemAllocator *pAllocator, BOOL bReadOnly); HRESULT STDMETHODCALLTYPE GetAllocatorRequirements(ALLOCATOR_PROPERTIES *pProps); HRESULT STDMETHODCALLTYPE Receive(IMediaSample *pSample); HRESULT STDMETHODCALLTYPE ReceiveMultiple(IMediaSample **pSamples, long nSamples, long *nSamplesProcessed); HRESULT STDMETHODCALLTYPE ReceiveCanBlock( void); //IKsPinFactory HRESULT STDMETHODCALLTYPE KsPinFactory(ULONG* PinFactory); //IStreamBuilder HRESULT STDMETHODCALLTYPE Render(IPin *ppinOut, IGraphBuilder *pGraph); HRESULT STDMETHODCALLTYPE Backout(IPin *ppinOut, IGraphBuilder *pGraph); //IKsAggregateControl HRESULT STDMETHODCALLTYPE KsAddAggregate(IN REFGUID AggregateClass); HRESULT STDMETHODCALLTYPE KsRemoveAggregate(REFGUID AggregateClass); //IQualityControl HRESULT STDMETHODCALLTYPE Notify(IBaseFilter *pSelf, Quality q); HRESULT STDMETHODCALLTYPE SetSink(IQualityControl *piqc); //--------------------------------------------------------------- HRESULT STDMETHODCALLTYPE CheckFormat(const AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE CreatePin(const AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE CreatePinHandle(PKSPIN_MEDIUM Medium, PKSPIN_INTERFACE Interface, const AM_MEDIA_TYPE *pmt); HRESULT STDMETHODCALLTYPE GetSupportedSets(LPGUID * pOutGuid, PULONG NumGuids); HRESULT STDMETHODCALLTYPE LoadProxyPlugins(LPGUID pGuids, ULONG NumGuids); CInputPin(IBaseFilter * ParentFilter, LPCWSTR PinName, ULONG PinId, KSPIN_COMMUNICATION Communication); virtual ~CInputPin(){}; protected: LONG m_Ref; IBaseFilter * m_ParentFilter; LPCWSTR m_PinName; HANDLE m_hPin; ULONG m_PinId; IMemAllocator * m_MemAllocator; LONG m_IoCount; KSPIN_COMMUNICATION m_Communication; KSPIN_INTERFACE m_Interface; KSPIN_MEDIUM m_Medium; AM_MEDIA_TYPE m_MediaFormat; IPin * m_Pin; BOOL m_ReadOnly; IKsInterfaceHandler * m_InterfaceHandler; IKsAllocatorEx * m_KsAllocatorEx; ULONG m_PipeAllocatorFlag; BOOL m_bPinBusCacheInitialized; GUID m_PinBusCache; LPWSTR m_FilterName; FRAMING_PROP m_FramingProp[4]; PKSALLOCATOR_FRAMING_EX m_FramingEx[4]; ProxyPluginVector m_Plugins; }; CInputPin::CInputPin( IBaseFilter * ParentFilter, LPCWSTR PinName, ULONG PinId, KSPIN_COMMUNICATION Communication) : m_Ref(0), m_ParentFilter(ParentFilter), m_PinName(PinName), m_hPin(INVALID_HANDLE_VALUE), m_PinId(PinId), m_MemAllocator(0), m_IoCount(0), m_Communication(Communication), m_Pin(0), m_ReadOnly(0), m_InterfaceHandler(0), m_KsAllocatorEx(0), m_PipeAllocatorFlag(0), m_bPinBusCacheInitialized(0), m_FilterName(0), m_Plugins() { ZeroMemory(m_FramingProp, sizeof(m_FramingProp)); ZeroMemory(m_FramingEx, sizeof(m_FramingEx)); HRESULT hr; IKsObject * KsObjectParent; HANDLE hFilter; hr = m_ParentFilter->QueryInterface(IID_IKsObject, (LPVOID*)&KsObjectParent); assert(hr == S_OK); hFilter = KsObjectParent->KsGetObjectHandle(); assert(hFilter); KsObjectParent->Release(); ZeroMemory(&m_MediaFormat, sizeof(AM_MEDIA_TYPE)); hr = KsGetMediaType(0, &m_MediaFormat, hFilter, m_PinId); assert(hr == S_OK); } HRESULT STDMETHODCALLTYPE CInputPin::QueryInterface( IN REFIID refiid, OUT PVOID* Output) { WCHAR Buffer[100]; *Output = NULL; if (IsEqualGUID(refiid, IID_IUnknown) || IsEqualGUID(refiid, IID_IPin)) { *Output = PVOID(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IMemInputPin)) { if (m_hPin == INVALID_HANDLE_VALUE) { HRESULT hr = CreatePin(&m_MediaFormat); if (FAILED(hr)) return hr; } *Output = (IMemInputPin*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IKsObject)) { *Output = (IKsObject*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IKsPropertySet)) { if (m_hPin == INVALID_HANDLE_VALUE) { HRESULT hr = CreatePin(&m_MediaFormat); if (FAILED(hr)) return hr; } *Output = (IKsPropertySet*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IKsControl)) { *Output = (IKsControl*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IKsPin) || IsEqualGUID(refiid, IID_IKsPinEx)) { *Output = (IKsPinEx*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IKsPinPipe)) { *Output = (IKsPinPipe*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IKsPinFactory)) { *Output = (IKsPinFactory*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } #if 0 else if (IsEqualGUID(refiid, IID_IStreamBuilder)) { *Output = (IStreamBuilder*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } #endif else if (IsEqualGUID(refiid, IID_IKsAggregateControl)) { *Output = (IKsAggregateControl*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_IQualityControl)) { *Output = (IQualityControl*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } else if (IsEqualGUID(refiid, IID_ISpecifyPropertyPages)) { *Output = (ISpecifyPropertyPages*)(this); reinterpret_cast(*Output)->AddRef(); return NOERROR; } LPOLESTR lpstr; StringFromCLSID(refiid, &lpstr); swprintf(Buffer, L"CInputPin::QueryInterface: NoInterface for %s\n", lpstr); OutputDebugStringW(Buffer); CoTaskMemFree(lpstr); return E_NOINTERFACE; } //------------------------------------------------------------------- // IQualityControl interface // HRESULT STDMETHODCALLTYPE CInputPin::Notify( IBaseFilter *pSelf, Quality q) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::Notify NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::SetSink( IQualityControl *piqc) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::SetSink NotImplemented\n"); #endif return E_NOTIMPL; } //------------------------------------------------------------------- // IKsAggregateControl interface // HRESULT STDMETHODCALLTYPE CInputPin::KsAddAggregate( IN REFGUID AggregateClass) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::KsAddAggregate NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::KsRemoveAggregate( REFGUID AggregateClass) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::KsRemoveAggregate NotImplemented\n"); #endif return E_NOTIMPL; } //------------------------------------------------------------------- // IStreamBuilder // HRESULT STDMETHODCALLTYPE CInputPin::Render( IPin *ppinOut, IGraphBuilder *pGraph) { OutputDebugStringW(L"CInputPin::Render\n"); return S_OK; } HRESULT STDMETHODCALLTYPE CInputPin::Backout( IPin *ppinOut, IGraphBuilder *pGraph) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::Backout\n"); #endif return S_OK; } //------------------------------------------------------------------- // IKsPinFactory // HRESULT STDMETHODCALLTYPE CInputPin::KsPinFactory( ULONG* PinFactory) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::KsPinFactory\n"); #endif *PinFactory = m_PinId; return S_OK; } //------------------------------------------------------------------- // IKsPinPipe // HRESULT STDMETHODCALLTYPE CInputPin::KsGetPinFramingCache( PKSALLOCATOR_FRAMING_EX *FramingEx, PFRAMING_PROP FramingProp, FRAMING_CACHE_OPS Option) { if (Option > Framing_Cache_Write || Option < Framing_Cache_ReadLast) { // invalid argument return E_INVALIDARG; } // get framing properties *FramingProp = m_FramingProp[Option]; *FramingEx = m_FramingEx[Option]; return NOERROR; } HRESULT STDMETHODCALLTYPE CInputPin::KsSetPinFramingCache( PKSALLOCATOR_FRAMING_EX FramingEx, PFRAMING_PROP FramingProp, FRAMING_CACHE_OPS Option) { ULONG Index; ULONG RefCount = 0; if (m_FramingEx[Option]) { for(Index = 1; Index < 4; Index++) { if (m_FramingEx[Index] == m_FramingEx[Option]) RefCount++; } if (RefCount == 1) { // existing framing is only used once CoTaskMemFree(m_FramingEx[Option]); } } // store framing m_FramingEx[Option] = FramingEx; m_FramingProp[Option] = *FramingProp; return S_OK; } IPin* STDMETHODCALLTYPE CInputPin::KsGetConnectedPin() { return m_Pin; } IKsAllocatorEx* STDMETHODCALLTYPE CInputPin::KsGetPipe( KSPEEKOPERATION Operation) { if (Operation == KsPeekOperation_AddRef) { if (m_KsAllocatorEx) m_KsAllocatorEx->AddRef(); } return m_KsAllocatorEx; } HRESULT STDMETHODCALLTYPE CInputPin::KsSetPipe( IKsAllocatorEx *KsAllocator) { if (KsAllocator) KsAllocator->AddRef(); if (m_KsAllocatorEx) m_KsAllocatorEx->Release(); m_KsAllocatorEx = KsAllocator; return NOERROR; } ULONG STDMETHODCALLTYPE CInputPin::KsGetPipeAllocatorFlag() { return m_PipeAllocatorFlag; } HRESULT STDMETHODCALLTYPE CInputPin::KsSetPipeAllocatorFlag( ULONG Flag) { m_PipeAllocatorFlag = Flag; return NOERROR; } GUID STDMETHODCALLTYPE CInputPin::KsGetPinBusCache() { if (!m_bPinBusCacheInitialized) { CopyMemory(&m_PinBusCache, &m_Medium.Set, sizeof(GUID)); m_bPinBusCacheInitialized = TRUE; } return m_PinBusCache; } HRESULT STDMETHODCALLTYPE CInputPin::KsSetPinBusCache( GUID Bus) { CopyMemory(&m_PinBusCache, &Bus, sizeof(GUID)); return NOERROR; } PWCHAR STDMETHODCALLTYPE CInputPin::KsGetPinName() { return (PWCHAR)m_PinName; } PWCHAR STDMETHODCALLTYPE CInputPin::KsGetFilterName() { return m_FilterName; } //------------------------------------------------------------------- // ISpecifyPropertyPages // HRESULT STDMETHODCALLTYPE CInputPin::GetPages(CAUUID *pPages) { if (!pPages) return E_POINTER; pPages->cElems = 0; pPages->pElems = NULL; return S_OK; } //------------------------------------------------------------------- // IMemInputPin // HRESULT STDMETHODCALLTYPE CInputPin::GetAllocator(IMemAllocator **ppAllocator) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::GetAllocator\n"); #endif return VFW_E_NO_ALLOCATOR; } HRESULT STDMETHODCALLTYPE CInputPin::NotifyAllocator(IMemAllocator *pAllocator, BOOL bReadOnly) { HRESULT hr; ALLOCATOR_PROPERTIES Properties; hr = pAllocator->GetProperties(&Properties); #ifdef KSPROXY_TRACE WCHAR Buffer[100]; swprintf(Buffer, L"CInputPin::NotifyAllocator hr %lx bReadOnly, %u cbAlign %u cbBuffer %u cbPrefix %u cBuffers %u\n", hr, bReadOnly, Properties.cbAlign, Properties.cbBuffer, Properties.cbPrefix, Properties.cBuffers); OutputDebugStringW(Buffer); #endif if (pAllocator) { pAllocator->AddRef(); } if (m_MemAllocator) { m_MemAllocator->Release(); } m_MemAllocator = pAllocator; m_ReadOnly = bReadOnly; return NOERROR; } HRESULT STDMETHODCALLTYPE CInputPin::GetAllocatorRequirements(ALLOCATOR_PROPERTIES *pProps) { KSALLOCATOR_FRAMING Framing; KSPROPERTY Property; HRESULT hr; ULONG BytesReturned; Property.Set = KSPROPSETID_Connection; Property.Id = KSPROPERTY_CONNECTION_ALLOCATORFRAMING; Property.Flags = KSPROPERTY_TYPE_SET; hr = KsProperty(&Property, sizeof(KSPROPERTY), (PVOID)&Framing, sizeof(KSALLOCATOR_FRAMING), &BytesReturned); if (SUCCEEDED(hr)) { pProps->cBuffers = Framing.Frames; pProps->cbBuffer = Framing.FrameSize; pProps->cbAlign = Framing.FileAlignment; pProps->cbPrefix = 0; } else hr = E_NOTIMPL; #ifdef KSPROXY_TRACE WCHAR Buffer[100]; swprintf(Buffer, L"CInputPin::GetAllocatorRequirements hr %lx m_hPin %p cBuffers %u cbBuffer %u cbAlign %u cbPrefix %u\n", hr, m_hPin, pProps->cBuffers, pProps->cbBuffer, pProps->cbAlign, pProps->cbPrefix); OutputDebugStringW(Buffer); #endif return hr; } HRESULT STDMETHODCALLTYPE CInputPin::Receive(IMediaSample *pSample) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::Receive NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::ReceiveMultiple(IMediaSample **pSamples, long nSamples, long *nSamplesProcessed) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::ReceiveMultiple NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::ReceiveCanBlock( void) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::ReceiveCanBlock NotImplemented\n"); #endif return S_FALSE; } //------------------------------------------------------------------- // IKsPin // HRESULT STDMETHODCALLTYPE CInputPin::KsQueryMediums( PKSMULTIPLE_ITEM* MediumList) { HRESULT hr; IKsObject * KsObjectParent; HANDLE hFilter; hr = m_ParentFilter->QueryInterface(IID_IKsObject, (LPVOID*)&KsObjectParent); if (FAILED(hr)) return hr; hFilter = KsObjectParent->KsGetObjectHandle(); KsObjectParent->Release(); if (!hFilter) return E_HANDLE; return KsGetMultiplePinFactoryItems(hFilter, m_PinId, KSPROPERTY_PIN_MEDIUMS, (PVOID*)MediumList); } HRESULT STDMETHODCALLTYPE CInputPin::KsQueryInterfaces( PKSMULTIPLE_ITEM* InterfaceList) { HRESULT hr; IKsObject * KsObjectParent; HANDLE hFilter; hr = m_ParentFilter->QueryInterface(IID_IKsObject, (LPVOID*)&KsObjectParent); if (FAILED(hr)) return hr; hFilter = KsObjectParent->KsGetObjectHandle(); KsObjectParent->Release(); if (!hFilter) return E_HANDLE; return KsGetMultiplePinFactoryItems(hFilter, m_PinId, KSPROPERTY_PIN_INTERFACES, (PVOID*)InterfaceList); } HRESULT STDMETHODCALLTYPE CInputPin::KsCreateSinkPinHandle( KSPIN_INTERFACE& Interface, KSPIN_MEDIUM& Medium) { return CreatePin(&m_MediaFormat); } HRESULT STDMETHODCALLTYPE CInputPin::KsGetCurrentCommunication( KSPIN_COMMUNICATION *Communication, KSPIN_INTERFACE *Interface, KSPIN_MEDIUM *Medium) { if (Communication) { *Communication = m_Communication; } if (Interface) { if (!m_hPin) return VFW_E_NOT_CONNECTED; CopyMemory(Interface, &m_Interface, sizeof(KSPIN_INTERFACE)); } if (Medium) { if (!m_hPin) return VFW_E_NOT_CONNECTED; CopyMemory(Medium, &m_Medium, sizeof(KSPIN_MEDIUM)); } return NOERROR; } HRESULT STDMETHODCALLTYPE CInputPin::KsPropagateAcquire() { KSPROPERTY Property; KSSTATE State; ULONG BytesReturned; HRESULT hr; assert(m_hPin != INVALID_HANDLE_VALUE); Property.Set = KSPROPSETID_Connection; Property.Id = KSPROPERTY_CONNECTION_STATE; Property.Flags = KSPROPERTY_TYPE_SET; State = KSSTATE_ACQUIRE; hr = KsProperty(&Property, sizeof(KSPROPERTY), (LPVOID)&State, sizeof(KSSTATE), &BytesReturned); //TODO //propagate to connected pin on the pipe return hr; } HRESULT STDMETHODCALLTYPE CInputPin::KsDeliver( IMediaSample* Sample, ULONG Flags) { return E_FAIL; } HRESULT STDMETHODCALLTYPE CInputPin::KsMediaSamplesCompleted(PKSSTREAM_SEGMENT StreamSegment) { return NOERROR; } IMemAllocator * STDMETHODCALLTYPE CInputPin::KsPeekAllocator(KSPEEKOPERATION Operation) { if (Operation == KsPeekOperation_AddRef) { // add reference on allocator m_MemAllocator->AddRef(); } return m_MemAllocator; } HRESULT STDMETHODCALLTYPE CInputPin::KsReceiveAllocator(IMemAllocator *MemAllocator) { if (MemAllocator) { MemAllocator->AddRef(); } if (m_MemAllocator) { m_MemAllocator->Release(); } m_MemAllocator = MemAllocator; return NOERROR; } HRESULT STDMETHODCALLTYPE CInputPin::KsRenegotiateAllocator() { return E_FAIL; } LONG STDMETHODCALLTYPE CInputPin::KsIncrementPendingIoCount() { return InterlockedIncrement((volatile LONG*)&m_IoCount); } LONG STDMETHODCALLTYPE CInputPin::KsDecrementPendingIoCount() { return InterlockedDecrement((volatile LONG*)&m_IoCount); } HRESULT STDMETHODCALLTYPE CInputPin::KsQualityNotify( ULONG Proportion, REFERENCE_TIME TimeDelta) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::KsQualityNotify NotImplemented\n"); #endif return E_NOTIMPL; } //------------------------------------------------------------------- // IKsPinEx // VOID STDMETHODCALLTYPE CInputPin::KsNotifyError( IMediaSample* Sample, HRESULT hr) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::KsNotifyError NotImplemented\n"); #endif } //------------------------------------------------------------------- // IKsControl // HRESULT STDMETHODCALLTYPE CInputPin::KsProperty( PKSPROPERTY Property, ULONG PropertyLength, LPVOID PropertyData, ULONG DataLength, ULONG* BytesReturned) { assert(m_hPin != INVALID_HANDLE_VALUE); return KsSynchronousDeviceControl(m_hPin, IOCTL_KS_PROPERTY, (PVOID)Property, PropertyLength, (PVOID)PropertyData, DataLength, BytesReturned); } HRESULT STDMETHODCALLTYPE CInputPin::KsMethod( PKSMETHOD Method, ULONG MethodLength, LPVOID MethodData, ULONG DataLength, ULONG* BytesReturned) { assert(m_hPin != INVALID_HANDLE_VALUE); return KsSynchronousDeviceControl(m_hPin, IOCTL_KS_METHOD, (PVOID)Method, MethodLength, (PVOID)MethodData, DataLength, BytesReturned); } HRESULT STDMETHODCALLTYPE CInputPin::KsEvent( PKSEVENT Event, ULONG EventLength, LPVOID EventData, ULONG DataLength, ULONG* BytesReturned) { assert(m_hPin != INVALID_HANDLE_VALUE); if (EventLength) return KsSynchronousDeviceControl(m_hPin, IOCTL_KS_ENABLE_EVENT, (PVOID)Event, EventLength, (PVOID)EventData, DataLength, BytesReturned); else return KsSynchronousDeviceControl(m_hPin, IOCTL_KS_DISABLE_EVENT, (PVOID)Event, EventLength, NULL, 0, BytesReturned); } //------------------------------------------------------------------- // IKsPropertySet // HRESULT STDMETHODCALLTYPE CInputPin::Set( REFGUID guidPropSet, DWORD dwPropID, LPVOID pInstanceData, DWORD cbInstanceData, LPVOID pPropData, DWORD cbPropData) { ULONG BytesReturned; if (cbInstanceData) { PKSPROPERTY Property = (PKSPROPERTY)CoTaskMemAlloc(sizeof(KSPROPERTY) + cbInstanceData); if (!Property) return E_OUTOFMEMORY; Property->Set = guidPropSet; Property->Id = dwPropID; Property->Flags = KSPROPERTY_TYPE_SET; CopyMemory((Property+1), pInstanceData, cbInstanceData); HRESULT hr = KsProperty(Property, sizeof(KSPROPERTY) + cbInstanceData, pPropData, cbPropData, &BytesReturned); CoTaskMemFree(Property); return hr; } else { KSPROPERTY Property; Property.Set = guidPropSet; Property.Id = dwPropID; Property.Flags = KSPROPERTY_TYPE_SET; HRESULT hr = KsProperty(&Property, sizeof(KSPROPERTY), pPropData, cbPropData, &BytesReturned); return hr; } } HRESULT STDMETHODCALLTYPE CInputPin::Get( REFGUID guidPropSet, DWORD dwPropID, LPVOID pInstanceData, DWORD cbInstanceData, LPVOID pPropData, DWORD cbPropData, DWORD *pcbReturned) { ULONG BytesReturned; if (cbInstanceData) { PKSPROPERTY Property = (PKSPROPERTY)CoTaskMemAlloc(sizeof(KSPROPERTY) + cbInstanceData); if (!Property) return E_OUTOFMEMORY; Property->Set = guidPropSet; Property->Id = dwPropID; Property->Flags = KSPROPERTY_TYPE_GET; CopyMemory((Property+1), pInstanceData, cbInstanceData); HRESULT hr = KsProperty(Property, sizeof(KSPROPERTY) + cbInstanceData, pPropData, cbPropData, &BytesReturned); CoTaskMemFree(Property); return hr; } else { KSPROPERTY Property; Property.Set = guidPropSet; Property.Id = dwPropID; Property.Flags = KSPROPERTY_TYPE_GET; HRESULT hr = KsProperty(&Property, sizeof(KSPROPERTY), pPropData, cbPropData, &BytesReturned); return hr; } } HRESULT STDMETHODCALLTYPE CInputPin::QuerySupported( REFGUID guidPropSet, DWORD dwPropID, DWORD *pTypeSupport) { KSPROPERTY Property; ULONG BytesReturned; Property.Set = guidPropSet; Property.Id = dwPropID; Property.Flags = KSPROPERTY_TYPE_SETSUPPORT; return KsProperty(&Property, sizeof(KSPROPERTY), pTypeSupport, sizeof(DWORD), &BytesReturned); } //------------------------------------------------------------------- // IKsObject // HANDLE STDMETHODCALLTYPE CInputPin::KsGetObjectHandle() { assert(m_hPin); return m_hPin; } //------------------------------------------------------------------- // IPin interface // HRESULT STDMETHODCALLTYPE CInputPin::Connect(IPin *pReceivePin, const AM_MEDIA_TYPE *pmt) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::Connect NotImplemented\n"); #endif return NOERROR; } HRESULT STDMETHODCALLTYPE CInputPin::ReceiveConnection(IPin *pConnector, const AM_MEDIA_TYPE *pmt) { HRESULT hr; if (m_Pin) { // already connected return VFW_E_ALREADY_CONNECTED; } // first check format hr = CheckFormat(pmt); if (FAILED(hr)) { // format is not supported return hr; } hr = CreatePin(pmt); if (FAILED(hr)) { return hr; } m_Pin = pConnector; m_Pin->AddRef(); return S_OK; } HRESULT STDMETHODCALLTYPE CInputPin::Disconnect( void) { if (!m_Pin) { // pin was not connected return S_FALSE; } //FIXME //check if filter is active m_Pin->Release(); m_Pin = NULL; #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::Disconnect\n"); #endif return S_OK; } HRESULT STDMETHODCALLTYPE CInputPin::ConnectedTo(IPin **pPin) { if (!pPin) return E_POINTER; if (m_Pin) { // increment reference count m_Pin->AddRef(); *pPin = m_Pin; return S_OK; } *pPin = NULL; return VFW_E_NOT_CONNECTED; } HRESULT STDMETHODCALLTYPE CInputPin::ConnectionMediaType(AM_MEDIA_TYPE *pmt) { if (!m_Pin) return VFW_E_NOT_CONNECTED; #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::ConnectionMediaType NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::QueryPinInfo(PIN_INFO *pInfo) { wcscpy(pInfo->achName, m_PinName); pInfo->dir = PINDIR_INPUT; pInfo->pFilter = m_ParentFilter; m_ParentFilter->AddRef(); return S_OK; } HRESULT STDMETHODCALLTYPE CInputPin::QueryDirection(PIN_DIRECTION *pPinDir) { if (pPinDir) { *pPinDir = PINDIR_INPUT; return S_OK; } return E_POINTER; } HRESULT STDMETHODCALLTYPE CInputPin::QueryId(LPWSTR *Id) { *Id = (LPWSTR)CoTaskMemAlloc((wcslen(m_PinName)+1)*sizeof(WCHAR)); if (!*Id) return E_OUTOFMEMORY; wcscpy(*Id, m_PinName); return S_OK; } HRESULT STDMETHODCALLTYPE CInputPin::QueryAccept( const AM_MEDIA_TYPE *pmt) { return CheckFormat(pmt); } HRESULT STDMETHODCALLTYPE CInputPin::EnumMediaTypes(IEnumMediaTypes **ppEnum) { HRESULT hr; ULONG MediaTypeCount = 0, Index; AM_MEDIA_TYPE * MediaTypes; IKsObject * KsObjectParent; HANDLE hFilter; hr = m_ParentFilter->QueryInterface(IID_IKsObject, (LPVOID*)&KsObjectParent); if (FAILED(hr)) return hr; hFilter = KsObjectParent->KsGetObjectHandle(); KsObjectParent->Release(); if (!hFilter) return E_HANDLE; // query media type count hr = KsGetMediaTypeCount(hFilter, m_PinId, &MediaTypeCount); if (FAILED(hr) || !MediaTypeCount) return hr; // allocate media types MediaTypes = (AM_MEDIA_TYPE*)CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE) * MediaTypeCount); if (!MediaTypes) { // not enough memory return E_OUTOFMEMORY; } // zero media types ZeroMemory(MediaTypes, sizeof(AM_MEDIA_TYPE) * MediaTypeCount); for(Index = 0; Index < MediaTypeCount; Index++) { // get media type hr = KsGetMediaType(Index, &MediaTypes[Index], hFilter, m_PinId); if (FAILED(hr)) { // failed CoTaskMemFree(MediaTypes); return hr; } } return CEnumMediaTypes_fnConstructor(MediaTypeCount, MediaTypes, IID_IEnumMediaTypes, (void**)ppEnum); } HRESULT STDMETHODCALLTYPE CInputPin::QueryInternalConnections(IPin **apPin, ULONG *nPin) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::QueryInternalConnections NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::EndOfStream( void) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::EndOfStream NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::BeginFlush( void) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::BeginFlush NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::EndFlush( void) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::EndFlush NotImplemented\n"); #endif return E_NOTIMPL; } HRESULT STDMETHODCALLTYPE CInputPin::NewSegment(REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::NewSegment NotImplemented\n"); #endif return E_NOTIMPL; } //------------------------------------------------------------------- HRESULT STDMETHODCALLTYPE CInputPin::CheckFormat( const AM_MEDIA_TYPE *pmt) { PKSMULTIPLE_ITEM MultipleItem; PKSDATAFORMAT DataFormat; HRESULT hr; IKsObject * KsObjectParent; HANDLE hFilter; if (!pmt) return E_POINTER; hr = m_ParentFilter->QueryInterface(IID_IKsObject, (LPVOID*)&KsObjectParent); if (FAILED(hr)) return hr; hFilter = KsObjectParent->KsGetObjectHandle(); KsObjectParent->Release(); if (!hFilter) return E_HANDLE; hr = KsGetMultiplePinFactoryItems(hFilter, m_PinId, KSPROPERTY_PIN_DATARANGES, (PVOID*)&MultipleItem); if (FAILED(hr)) return S_FALSE; DataFormat = (PKSDATAFORMAT)(MultipleItem + 1); for(ULONG Index = 0; Index < MultipleItem->Count; Index++) { if (IsEqualGUID(pmt->majortype, DataFormat->MajorFormat) && IsEqualGUID(pmt->subtype, DataFormat->SubFormat) && IsEqualGUID(pmt->formattype, DataFormat->Specifier)) { // format is supported CoTaskMemFree(MultipleItem); #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::CheckFormat format OK\n"); #endif return S_OK; } DataFormat = (PKSDATAFORMAT)((ULONG_PTR)DataFormat + DataFormat->FormatSize); } //format is not supported CoTaskMemFree(MultipleItem); return S_FALSE; } HRESULT STDMETHODCALLTYPE CInputPin::CreatePin( const AM_MEDIA_TYPE *pmt) { PKSMULTIPLE_ITEM MediumList; PKSMULTIPLE_ITEM InterfaceList; PKSPIN_MEDIUM Medium; PKSPIN_INTERFACE Interface; IKsInterfaceHandler * InterfaceHandler; HRESULT hr; // query for pin medium hr = KsQueryMediums(&MediumList); if (FAILED(hr)) return hr; // query for pin interface hr = KsQueryInterfaces(&InterfaceList); if (FAILED(hr)) { // failed CoTaskMemFree(MediumList); return hr; } if (MediumList->Count) { //use first available medium Medium = (PKSPIN_MEDIUM)(MediumList + 1); } else { // default to standard medium Medium = &StandardPinMedium; } if (InterfaceList->Count) { //use first available interface Interface = (PKSPIN_INTERFACE)(InterfaceList + 1); } else { // default to standard interface Interface = &StandardPinInterface; } if (m_Communication != KSPIN_COMMUNICATION_BRIDGE && m_Communication != KSPIN_COMMUNICATION_NONE) { if (!m_InterfaceHandler) { // now load the IKsInterfaceHandler plugin hr = CoCreateInstance(Interface->Set, NULL, CLSCTX_INPROC_SERVER, IID_IKsInterfaceHandler, (void**)&InterfaceHandler); if (FAILED(hr)) { // failed to load interface handler plugin #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::CreatePin failed to load InterfaceHandlerPlugin\n"); #endif CoTaskMemFree(MediumList); CoTaskMemFree(InterfaceList); return hr; } // now set the pin hr = InterfaceHandler->KsSetPin((IKsPin*)this); if (FAILED(hr)) { // failed to load interface handler plugin #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::CreatePin failed to initialize InterfaceHandlerPlugin\n"); #endif InterfaceHandler->Release(); CoTaskMemFree(MediumList); CoTaskMemFree(InterfaceList); return hr; } // store interface handler m_InterfaceHandler = InterfaceHandler; } // now create pin hr = CreatePinHandle(Medium, Interface, pmt); if (FAILED(hr)) { m_InterfaceHandler->Release(); m_InterfaceHandler = InterfaceHandler; } } else { #ifdef KSPROXY_TRACE WCHAR Buffer[100]; swprintf(Buffer, L"CInputPin::CreatePin unexpected communication %u %s\n", m_Communication, m_PinName); OutputDebugStringW(Buffer); #endif hr = E_FAIL; } // free medium / interface / dataformat CoTaskMemFree(MediumList); CoTaskMemFree(InterfaceList); return hr; } HRESULT STDMETHODCALLTYPE CInputPin::CreatePinHandle( PKSPIN_MEDIUM Medium, PKSPIN_INTERFACE Interface, const AM_MEDIA_TYPE *pmt) { PKSPIN_CONNECT PinConnect; PKSDATAFORMAT DataFormat; ULONG Length; HRESULT hr; IKsObject * KsObjectParent; HANDLE hFilter; if (!pmt) return E_POINTER; hr = m_ParentFilter->QueryInterface(IID_IKsObject, (LPVOID*)&KsObjectParent); if (FAILED(hr)) return hr; hFilter = KsObjectParent->KsGetObjectHandle(); KsObjectParent->Release(); if (!hFilter) return E_HANDLE; if (m_hPin != INVALID_HANDLE_VALUE) { // pin already exists //CloseHandle(m_hPin); //m_hPin = INVALID_HANDLE_VALUE; return S_OK; } // calc format size Length = sizeof(KSPIN_CONNECT) + sizeof(KSDATAFORMAT) + pmt->cbFormat; // allocate pin connect PinConnect = (PKSPIN_CONNECT)CoTaskMemAlloc(Length); if (!PinConnect) { // failed return E_OUTOFMEMORY; } // setup request CopyMemory(&PinConnect->Interface, Interface, sizeof(KSPIN_INTERFACE)); CopyMemory(&PinConnect->Medium, Medium, sizeof(KSPIN_MEDIUM)); PinConnect->PinId = m_PinId; PinConnect->PinToHandle = NULL; PinConnect->Priority.PriorityClass = KSPRIORITY_NORMAL; PinConnect->Priority.PrioritySubClass = KSPRIORITY_NORMAL; // get dataformat offset DataFormat = (PKSDATAFORMAT)(PinConnect + 1); // copy data format DataFormat->FormatSize = sizeof(KSDATAFORMAT) + pmt->cbFormat; DataFormat->Flags = 0; DataFormat->SampleSize = pmt->lSampleSize; DataFormat->Reserved = 0; CopyMemory(&DataFormat->MajorFormat, &pmt->majortype, sizeof(GUID)); CopyMemory(&DataFormat->SubFormat, &pmt->subtype, sizeof(GUID)); CopyMemory(&DataFormat->Specifier, &pmt->formattype, sizeof(GUID)); if (pmt->cbFormat) { // copy extended format CopyMemory((DataFormat + 1), pmt->pbFormat, pmt->cbFormat); } // create pin hr = KsCreatePin(hFilter, PinConnect, GENERIC_WRITE, &m_hPin); if (SUCCEEDED(hr)) { // store current interface / medium CopyMemory(&m_Medium, Medium, sizeof(KSPIN_MEDIUM)); CopyMemory(&m_Interface, Interface, sizeof(KSPIN_INTERFACE)); CopyMemory(&m_MediaFormat, pmt, sizeof(AM_MEDIA_TYPE)); #ifdef KSPROXY_TRACE LPOLESTR pMajor, pSub, pFormat; StringFromIID(m_MediaFormat.majortype, &pMajor); StringFromIID(m_MediaFormat.subtype , &pSub); StringFromIID(m_MediaFormat.formattype, &pFormat); WCHAR Buffer[200]; swprintf(Buffer, L"CInputPin::CreatePinHandle Major %s SubType %s Format %s pbFormat %p cbFormat %u\n", pMajor, pSub, pFormat, pmt->pbFormat, pmt->cbFormat); CoTaskMemFree(pMajor); CoTaskMemFree(pSub); CoTaskMemFree(pFormat); OutputDebugStringW(Buffer); #endif if (pmt->cbFormat) { m_MediaFormat.pbFormat = (BYTE*)CoTaskMemAlloc(pmt->cbFormat); if (!m_MediaFormat.pbFormat) { CoTaskMemFree(PinConnect); m_MediaFormat.pbFormat = NULL; m_MediaFormat.cbFormat = 0; return E_OUTOFMEMORY; } CopyMemory(m_MediaFormat.pbFormat, pmt->pbFormat, pmt->cbFormat); } LPGUID pGuid; ULONG NumGuids = 0; // get all supported sets hr = GetSupportedSets(&pGuid, &NumGuids); if (FAILED(hr)) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::CreatePinHandle GetSupportedSets failed\n"); #endif return hr; } // load all proxy plugins hr = LoadProxyPlugins(pGuid, NumGuids); if (FAILED(hr)) { #ifdef KSPROXY_TRACE OutputDebugStringW(L"CInputPin::CreatePinHandle LoadProxyPlugins failed\n"); #endif return hr; } // free sets CoTaskMemFree(pGuid); //TODO // connect pin pipes } // free pin connect CoTaskMemFree(PinConnect); return hr; } HRESULT STDMETHODCALLTYPE CInputPin::GetSupportedSets( LPGUID * pOutGuid, PULONG NumGuids) { KSPROPERTY Property; LPGUID pGuid; ULONG NumProperty = 0; ULONG NumMethods = 0; ULONG NumEvents = 0; ULONG Length; ULONG BytesReturned; HRESULT hr; Property.Set = GUID_NULL; Property.Id = 0; Property.Flags = KSPROPERTY_TYPE_SETSUPPORT; KsSynchronousDeviceControl(m_hPin, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), NULL, 0, &NumProperty); KsSynchronousDeviceControl(m_hPin, IOCTL_KS_METHOD, (PVOID)&Property, sizeof(KSPROPERTY), NULL, 0, &NumMethods); KsSynchronousDeviceControl(m_hPin, IOCTL_KS_ENABLE_EVENT, (PVOID)&Property, sizeof(KSPROPERTY), NULL, 0, &NumEvents); Length = NumProperty + NumMethods + NumEvents; assert(Length); // allocate guid buffer pGuid = (LPGUID)CoTaskMemAlloc(Length); if (!pGuid) { // failed return E_OUTOFMEMORY; } NumProperty /= sizeof(GUID); NumMethods /= sizeof(GUID); NumEvents /= sizeof(GUID); #ifdef KSPROXY_TRACE WCHAR Buffer[200]; swprintf(Buffer, L"CInputPin::GetSupportedSets NumProperty %lu NumMethods %lu NumEvents %lu\n", NumProperty, NumMethods, NumEvents); OutputDebugStringW(Buffer); #endif // get all properties hr = KsSynchronousDeviceControl(m_hPin, IOCTL_KS_PROPERTY, (PVOID)&Property, sizeof(KSPROPERTY), (PVOID)pGuid, Length, &BytesReturned); if (FAILED(hr)) { CoTaskMemFree(pGuid); return E_FAIL; } Length -= BytesReturned; // get all methods if (Length && NumMethods) { hr = KsSynchronousDeviceControl(m_hPin, IOCTL_KS_METHOD, (PVOID)&Property, sizeof(KSPROPERTY), (PVOID)&pGuid[NumProperty], Length, &BytesReturned); if (FAILED(hr)) { CoTaskMemFree(pGuid); return E_FAIL; } Length -= BytesReturned; } // get all events if (Length && NumEvents) { hr = KsSynchronousDeviceControl(m_hPin, IOCTL_KS_ENABLE_EVENT, (PVOID)&Property, sizeof(KSPROPERTY), (PVOID)&pGuid[NumProperty+NumMethods], Length, &BytesReturned); if (FAILED(hr)) { CoTaskMemFree(pGuid); return E_FAIL; } Length -= BytesReturned; } *pOutGuid = pGuid; *NumGuids = NumProperty+NumEvents+NumMethods; return S_OK; } HRESULT STDMETHODCALLTYPE CInputPin::LoadProxyPlugins( LPGUID pGuids, ULONG NumGuids) { ULONG Index; LPOLESTR pStr; HKEY hKey, hSubKey; HRESULT hr; IUnknown * pUnknown; if (RegOpenKeyExW(HKEY_LOCAL_MACHINE, L"SYSTEM\\CurrentControlSet\\Control\\MediaInterfaces", 0, KEY_READ, &hKey) != ERROR_SUCCESS) { OutputDebugStringW(L"CInputPin::LoadProxyPlugins failed to open MediaInterfaces key\n"); return E_FAIL; } // enumerate all sets for(Index = 0; Index < NumGuids; Index++) { // convert to string hr = StringFromCLSID(pGuids[Index], &pStr); if (FAILED(hr)) return E_FAIL; // now try open class key if (RegOpenKeyExW(hKey, pStr, 0, KEY_READ, &hSubKey) != ERROR_SUCCESS) { // no plugin for that set exists CoTaskMemFree(pStr); continue; } // try load plugin hr = CoCreateInstance(pGuids[Index], (IBaseFilter*)this, CLSCTX_INPROC_SERVER, IID_IUnknown, (void**)&pUnknown); if (SUCCEEDED(hr)) { // store plugin m_Plugins.push_back(pUnknown); } // close key RegCloseKey(hSubKey); } // close media interfaces key RegCloseKey(hKey); return S_OK; } HRESULT WINAPI CInputPin_Constructor( IBaseFilter * ParentFilter, LPCWSTR PinName, HANDLE hFilter, ULONG PinId, KSPIN_COMMUNICATION Communication, REFIID riid, LPVOID * ppv) { CInputPin * handler = new CInputPin(ParentFilter, PinName, PinId, Communication); if (!handler) return E_OUTOFMEMORY; if (FAILED(handler->QueryInterface(riid, ppv))) { /* not supported */ delete handler; return E_NOINTERFACE; } return S_OK; }