/* * IPin function declarations to allow inheritance * * Copyright 2003 Robert Shearman * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* This function will process incoming samples to the pin. * Any return value valid in IMemInputPin::Receive is allowed here */ typedef HRESULT (* SAMPLEPROC)(LPVOID userdata, IMediaSample * pSample); /* This function will determine whether a type is supported or not. * It is allowed to return any error value (within reason), as opposed * to IPin::QueryAccept which is only allowed to return S_OK or S_FALSE. */ typedef HRESULT (* QUERYACCEPTPROC)(LPVOID userdata, const AM_MEDIA_TYPE * pmt); /* This function is called prior to finalizing a connection with * another pin and can be used to get things from the other pin * like IMemInput interfaces. */ typedef HRESULT (* PRECONNECTPROC)(IPin * iface, IPin * pConnectPin); typedef struct IPinImpl { const struct IPinVtbl * lpVtbl; ULONG refCount; LPCRITICAL_SECTION pCritSec; PIN_INFO pinInfo; IPin * pConnectedTo; AM_MEDIA_TYPE mtCurrent; ENUMMEDIADETAILS enumMediaDetails; QUERYACCEPTPROC fnQueryAccept; LPVOID pUserData; } IPinImpl; typedef struct InputPin { /* inheritance C style! */ IPinImpl pin; const IMemInputPinVtbl * lpVtblMemInput; IMemAllocator * pAllocator; SAMPLEPROC fnSampleProc; REFERENCE_TIME tStart; REFERENCE_TIME tStop; double dRate; } InputPin; typedef struct OutputPin { /* inheritance C style! */ IPinImpl pin; IMemInputPin * pMemInputPin; HRESULT (* pConnectSpecific)(IPin * iface, IPin * pReceiver, const AM_MEDIA_TYPE * pmt); ALLOCATOR_PROPERTIES allocProps; } OutputPin; typedef struct PullPin { /* inheritance C style! */ IPinImpl pin; IAsyncReader * pReader; IMemAllocator * pAlloc; SAMPLEPROC fnSampleProc; PRECONNECTPROC fnPreConnect; HANDLE hThread; HANDLE hEventStateChanged; REFERENCE_TIME rtStart; REFERENCE_TIME rtStop; } PullPin; /*** Initializers ***/ HRESULT InputPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, InputPin * pPinImpl); HRESULT OutputPin_Init(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, OutputPin * pPinImpl); HRESULT PullPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, PullPin * pPinImpl); /*** Constructors ***/ HRESULT InputPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin); HRESULT OutputPin_Construct(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin); HRESULT PullPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin); /**************************/ /*** Pin Implementation ***/ /* Common */ ULONG WINAPI IPinImpl_AddRef(IPin * iface); HRESULT WINAPI IPinImpl_Disconnect(IPin * iface); HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin); HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt); HRESULT WINAPI IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo); HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir); HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id); HRESULT WINAPI IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt); HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum); HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin); /* Input Pin */ HRESULT WINAPI InputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv); ULONG WINAPI InputPin_Release(IPin * iface); HRESULT WINAPI InputPin_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt); HRESULT WINAPI InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt); HRESULT WINAPI InputPin_EndOfStream(IPin * iface); HRESULT WINAPI InputPin_BeginFlush(IPin * iface); HRESULT WINAPI InputPin_EndFlush(IPin * iface); HRESULT WINAPI InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate); /* Output Pin */ HRESULT WINAPI OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv); ULONG WINAPI OutputPin_Release(IPin * iface); HRESULT WINAPI OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt); HRESULT WINAPI OutputPin_Disconnect(IPin * iface); HRESULT WINAPI OutputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt); HRESULT WINAPI OutputPin_EndOfStream(IPin * iface); HRESULT WINAPI OutputPin_BeginFlush(IPin * iface); HRESULT WINAPI OutputPin_EndFlush(IPin * iface); HRESULT WINAPI OutputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate); HRESULT OutputPin_CommitAllocator(OutputPin * This); HRESULT OutputPin_GetDeliveryBuffer(OutputPin * This, IMediaSample ** ppSample, const REFERENCE_TIME * tStart, const REFERENCE_TIME * tStop, DWORD dwFlags); HRESULT OutputPin_SendSample(OutputPin * This, IMediaSample * pSample); HRESULT OutputPin_DeliverDisconnect(OutputPin * This); HRESULT OutputPin_DeliverNewSegment(OutputPin * This, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate); /**********************************/ /*** MemInputPin Implementation ***/ HRESULT WINAPI MemInputPin_QueryInterface(IMemInputPin * iface, REFIID riid, LPVOID * ppv); ULONG WINAPI MemInputPin_AddRef(IMemInputPin * iface); ULONG WINAPI MemInputPin_Release(IMemInputPin * iface); HRESULT WINAPI MemInputPin_GetAllocator(IMemInputPin * iface, IMemAllocator ** ppAllocator); HRESULT WINAPI MemInputPin_NotifyAllocator(IMemInputPin * iface, IMemAllocator * pAllocator, BOOL bReadOnly); HRESULT WINAPI MemInputPin_GetAllocatorRequirements(IMemInputPin * iface, ALLOCATOR_PROPERTIES * pProps); HRESULT WINAPI MemInputPin_Receive(IMemInputPin * iface, IMediaSample * pSample); HRESULT WINAPI MemInputPin_ReceiveMultiple(IMemInputPin * iface, IMediaSample ** pSamples, long nSamples, long *nSamplesProcessed); HRESULT WINAPI MemInputPin_ReceiveCanBlock(IMemInputPin * iface); /* Pull Pin */ HRESULT WINAPI PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt); HRESULT WINAPI PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv); ULONG WINAPI PullPin_Release(IPin * iface); HRESULT PullPin_InitProcessing(PullPin * This); HRESULT PullPin_StartProcessing(PullPin * This); HRESULT PullPin_StopProcessing(PullPin * This); HRESULT PullPin_PauseProcessing(PullPin * This); HRESULT PullPin_Seek(PullPin * This, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop); HRESULT WINAPI PullPin_EndOfStream(IPin * iface); HRESULT WINAPI PullPin_BeginFlush(IPin * iface); HRESULT WINAPI PullPin_EndFlush(IPin * iface); HRESULT WINAPI PullPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate); HRESULT PullPin_WaitForStateChange(PullPin * This, DWORD dwMilliseconds);