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81 lines
3.3 KiB
C
81 lines
3.3 KiB
C
/*
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* IPin function declarations to allow inheritance
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*
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* Copyright 2003 Robert Shearman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* This function will process incoming samples to the pin.
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* Any return value valid in IMemInputPin::Receive is allowed here
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*/
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typedef HRESULT (* SAMPLEPROC)(LPVOID userdata, IMediaSample * pSample);
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/* This function will determine whether a type is supported or not.
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* It is allowed to return any error value (within reason), as opposed
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* to IPin::QueryAccept which is only allowed to return S_OK or S_FALSE.
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*/
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typedef HRESULT (* QUERYACCEPTPROC)(LPVOID userdata, const AM_MEDIA_TYPE * pmt);
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/* This function is called prior to finalizing a connection with
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* another pin and can be used to get things from the other pin
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* like IMemInput interfaces.
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*/
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typedef HRESULT (* PRECONNECTPROC)(IPin * iface, IPin * pConnectPin);
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typedef struct IPinImpl
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{
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const struct IPinVtbl * lpVtbl;
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ULONG refCount;
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LPCRITICAL_SECTION pCritSec;
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PIN_INFO pinInfo;
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IPin * pConnectedTo;
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AM_MEDIA_TYPE mtCurrent;
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ENUMMEDIADETAILS enumMediaDetails;
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QUERYACCEPTPROC fnQueryAccept;
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LPVOID pUserData;
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} IPinImpl;
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typedef struct OutputPin
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{
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/* inheritance C style! */
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IPinImpl pin;
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IMemInputPin * pMemInputPin;
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HRESULT (* pConnectSpecific)(IPin * iface, IPin * pReceiver, const AM_MEDIA_TYPE * pmt);
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ALLOCATOR_PROPERTIES allocProps;
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} OutputPin;
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/*** Initializers ***/
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HRESULT OutputPin_Init(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, OutputPin * pPinImpl);
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/* Common */
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HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin);
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HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt);
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HRESULT WINAPI IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo);
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HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir);
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HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id);
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HRESULT WINAPI IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt);
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HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum);
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HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin);
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/* Output Pin */
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HRESULT WINAPI OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
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HRESULT WINAPI OutputPin_Disconnect(IPin * iface);
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HRESULT WINAPI OutputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
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HRESULT OutputPin_GetDeliveryBuffer(OutputPin * This, IMediaSample ** ppSample, const REFERENCE_TIME * tStart, const REFERENCE_TIME * tStop, DWORD dwFlags);
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HRESULT OutputPin_SendSample(OutputPin * This, IMediaSample * pSample);
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