dlls/quartz/pin.h

   1 /*
   2  * IPin function declarations to allow inheritance
   3  *
   4  * Copyright 2003 Robert Shearman
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /* This function will process incoming samples to the pin.
  22  * Any return value valid in IMemInputPin::Receive is allowed here
  23  */
  24 typedef HRESULT (* SAMPLEPROC)(LPVOID userdata, IMediaSample * pSample);
  25
  26 /* This function will determine whether a type is supported or not.
  27  * It is allowed to return any error value (within reason), as opposed
  28  * to IPin::QueryAccept which is only allowed to return S_OK or S_FALSE.
  29  */
  30 typedef HRESULT (* QUERYACCEPTPROC)(LPVOID userdata, const AM_MEDIA_TYPE * pmt);
  31
  32 /* This function is called prior to finalizing a connection with
  33  * another pin and can be used to get things from the other pin
  34  * like IMemInput interfaces.
  35  */
  36 typedef HRESULT (* PRECONNECTPROC)(IPin * iface, IPin * pConnectPin);
  37
  38 typedef struct IPinImpl
  39 {
  40         const struct IPinVtbl * lpVtbl;
  41         ULONG refCount;
  42         LPCRITICAL_SECTION pCritSec;
  43         PIN_INFO pinInfo;
  44         IPin * pConnectedTo;
  45         AM_MEDIA_TYPE mtCurrent;
  46         ENUMMEDIADETAILS enumMediaDetails;
  47         QUERYACCEPTPROC fnQueryAccept;
  48         LPVOID pUserData;
  49 } IPinImpl;
  50
  51 typedef struct InputPin
  52 {
  53         /* inheritance C style! */
  54         IPinImpl pin;
  55
  56         const IMemInputPinVtbl * lpVtblMemInput;
  57         IMemAllocator * pAllocator;
  58         SAMPLEPROC fnSampleProc;
  59         REFERENCE_TIME tStart;
  60         REFERENCE_TIME tStop;
  61         double dRate;
  62 } InputPin;
  63
  64 typedef struct OutputPin
  65 {
  66         /* inheritance C style! */
  67         IPinImpl pin;
  68
  69         IMemInputPin * pMemInputPin;
  70         HRESULT (* pConnectSpecific)(IPin * iface, IPin * pReceiver, const AM_MEDIA_TYPE * pmt);
  71         ALLOCATOR_PROPERTIES allocProps;
  72 } OutputPin;
  73
  74 typedef struct PullPin
  75 {
  76         /* inheritance C style! */
  77         IPinImpl pin;
  78
  79         IAsyncReader * pReader;
  80         IMemAllocator * pAlloc;
  81         SAMPLEPROC fnSampleProc;
  82         PRECONNECTPROC fnPreConnect;
  83         HANDLE hThread;
  84         HANDLE hEventStateChanged;
  85         REFERENCE_TIME rtStart;
  86         REFERENCE_TIME rtStop;
  87 } PullPin;
  88
  89 /*** Initializers ***/
  90 HRESULT InputPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, InputPin * pPinImpl);
  91 HRESULT OutputPin_Init(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, OutputPin * pPinImpl);
  92 HRESULT PullPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, PullPin * pPinImpl);
  93
  94 /*** Constructors ***/
  95 HRESULT InputPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
  96 HRESULT OutputPin_Construct(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
  97 HRESULT PullPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin);
  98
  99 /**************************/
 100 /*** Pin Implementation ***/
 101
 102 /* Common */
 103 ULONG   WINAPI IPinImpl_AddRef(IPin * iface);
 104 HRESULT WINAPI IPinImpl_Disconnect(IPin * iface);
 105 HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin);
 106 HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt);
 107 HRESULT WINAPI IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo);
 108 HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir);
 109 HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id);
 110 HRESULT WINAPI IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt);
 111 HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum);
 112 HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin);
 113
 114 /* Input Pin */
 115 HRESULT WINAPI InputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
 116 ULONG   WINAPI InputPin_Release(IPin * iface);
 117 HRESULT WINAPI InputPin_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt);
 118 HRESULT WINAPI InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
 119 HRESULT WINAPI InputPin_EndOfStream(IPin * iface);
 120 HRESULT WINAPI InputPin_BeginFlush(IPin * iface);
 121 HRESULT WINAPI InputPin_EndFlush(IPin * iface);
 122 HRESULT WINAPI InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
 123
 124 /* Output Pin */
 125 HRESULT WINAPI OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
 126 ULONG   WINAPI OutputPin_Release(IPin * iface);
 127 HRESULT WINAPI OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
 128 HRESULT WINAPI OutputPin_Disconnect(IPin * iface);
 129 HRESULT WINAPI OutputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
 130 HRESULT WINAPI OutputPin_EndOfStream(IPin * iface);
 131 HRESULT WINAPI OutputPin_BeginFlush(IPin * iface);
 132 HRESULT WINAPI OutputPin_EndFlush(IPin * iface);
 133 HRESULT WINAPI OutputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
 134
 135 HRESULT OutputPin_CommitAllocator(OutputPin * This);
 136 HRESULT OutputPin_GetDeliveryBuffer(OutputPin * This, IMediaSample ** ppSample, const REFERENCE_TIME * tStart, const REFERENCE_TIME * tStop, DWORD dwFlags);
 137 HRESULT OutputPin_SendSample(OutputPin * This, IMediaSample * pSample);
 138 HRESULT OutputPin_DeliverDisconnect(OutputPin * This);
 139 HRESULT OutputPin_DeliverNewSegment(OutputPin * This, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
 140
 141 /**********************************/
 142 /*** MemInputPin Implementation ***/
 143
 144 HRESULT WINAPI MemInputPin_QueryInterface(IMemInputPin * iface, REFIID riid, LPVOID * ppv);
 145 ULONG   WINAPI MemInputPin_AddRef(IMemInputPin * iface);
 146 ULONG   WINAPI MemInputPin_Release(IMemInputPin * iface);
 147 HRESULT WINAPI MemInputPin_GetAllocator(IMemInputPin * iface, IMemAllocator ** ppAllocator);
 148 HRESULT WINAPI MemInputPin_NotifyAllocator(IMemInputPin * iface, IMemAllocator * pAllocator, BOOL bReadOnly);
 149 HRESULT WINAPI MemInputPin_GetAllocatorRequirements(IMemInputPin * iface, ALLOCATOR_PROPERTIES * pProps);
 150 HRESULT WINAPI MemInputPin_Receive(IMemInputPin * iface, IMediaSample * pSample);
 151 HRESULT WINAPI MemInputPin_ReceiveMultiple(IMemInputPin * iface, IMediaSample ** pSamples, long nSamples, long *nSamplesProcessed);
 152 HRESULT WINAPI MemInputPin_ReceiveCanBlock(IMemInputPin * iface);
 153
 154 /* Pull Pin */
 155 HRESULT WINAPI PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt);
 156 HRESULT WINAPI PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv);
 157 ULONG   WINAPI PullPin_Release(IPin * iface);
 158 HRESULT PullPin_InitProcessing(PullPin * This);
 159 HRESULT PullPin_StartProcessing(PullPin * This);
 160 HRESULT PullPin_StopProcessing(PullPin * This);
 161 HRESULT PullPin_PauseProcessing(PullPin * This);
 162 HRESULT PullPin_Seek(PullPin * This, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop);
 163 HRESULT WINAPI PullPin_EndOfStream(IPin * iface);
 164 HRESULT WINAPI PullPin_BeginFlush(IPin * iface);
 165 HRESULT WINAPI PullPin_EndFlush(IPin * iface);
 166 HRESULT WINAPI PullPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate);
 167 HRESULT PullPin_WaitForStateChange(PullPin * This, DWORD dwMilliseconds);