git.oblomov.eu Git - wine/blob - dlls/quartz/transform.c

   1 /*
   2  * Transform Filter (Base for decoders, etc...)
   3  *
   4  * Copyright 2005 Christian Costa
   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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include "quartz_private.h"
  24 #include "control_private.h"
  25 #include "pin.h"
  26
  27 #include "amvideo.h"
  28 #include "windef.h"
  29 #include "winbase.h"
  30 #include "dshow.h"
  31 #include "strmif.h"
  32 #include "vfw.h"
  33
  34 #include <assert.h>
  35
  36 #include "wine/unicode.h"
  37 #include "wine/debug.h"
  38
  39 #include "transform.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  42
  43 static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
  44 static const WCHAR wcsOutputPinName[] = {'o','u','t','p','u','t',' ','p','i','n',0};
  45
  46 static const IBaseFilterVtbl TransformFilter_Vtbl;
  47 static const IPinVtbl TransformFilter_InputPin_Vtbl;
  48 static const IMemInputPinVtbl MemInputPin_Vtbl;
  49 static const IPinVtbl TransformFilter_OutputPin_Vtbl;
  50
  51 static HRESULT TransformFilter_Sample(LPVOID iface, IMediaSample * pSample)
  52 {
  53     TransformFilterImpl *This = (TransformFilterImpl *)iface;
  54
  55     TRACE("%p %p\n", iface, pSample);
  56
  57     return This->pFuncsTable->pfnProcessSampleData(This, pSample);
  58 }
  59
  60 static HRESULT TransformFilter_Input_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
  61 {
  62     TransformFilterImpl* This = (TransformFilterImpl*)iface;
  63     TRACE("%p\n", iface);
  64     dump_AM_MEDIA_TYPE(pmt);
  65
  66     if (This->pFuncsTable->pfnQueryConnect)
  67         return This->pFuncsTable->pfnQueryConnect(This, pmt);
  68     /* Assume OK if there's no query method (the connection will fail if
  69        needed) */
  70     return S_OK;
  71 }
  72
  73
  74 static HRESULT TransformFilter_Output_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
  75 {
  76     TransformFilterImpl* pTransformFilter = (TransformFilterImpl*)iface;
  77     AM_MEDIA_TYPE* outpmt = &((OutputPin*)pTransformFilter->ppPins[1])->pin.mtCurrent;
  78     TRACE("%p\n", iface);
  79
  80     if (IsEqualIID(&pmt->majortype, &outpmt->majortype) && IsEqualIID(&pmt->subtype, &outpmt->subtype))
  81         return S_OK;
  82     return S_FALSE;
  83 }
  84
  85 static HRESULT TransformFilter_InputPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
  86 {
  87     InputPin * pPinImpl;
  88
  89     *ppPin = NULL;
  90
  91     if (pPinInfo->dir != PINDIR_INPUT)
  92     {
  93         ERR("Pin direction(%x) != PINDIR_INPUT\n", pPinInfo->dir);
  94         return E_INVALIDARG;
  95     }
  96
  97     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
  98
  99     if (!pPinImpl)
 100         return E_OUTOFMEMORY;
 101
 102     if (SUCCEEDED(InputPin_Init(pPinInfo, pSampleProc, pUserData, pQueryAccept, pCritSec, pPinImpl)))
 103     {
 104         pPinImpl->pin.lpVtbl = &TransformFilter_InputPin_Vtbl;
 105         pPinImpl->lpVtblMemInput = &MemInputPin_Vtbl;
 106
 107         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
 108         return S_OK;
 109     }
 110     return E_FAIL;
 111 }
 112
 113 static HRESULT TransformFilter_OutputPin_Construct(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
 114 {
 115     OutputPin * pPinImpl;
 116
 117     *ppPin = NULL;
 118
 119     if (pPinInfo->dir != PINDIR_OUTPUT)
 120     {
 121         ERR("Pin direction(%x) != PINDIR_OUTPUT\n", pPinInfo->dir);
 122         return E_INVALIDARG;
 123     }
 124
 125     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
 126
 127     if (!pPinImpl)
 128         return E_OUTOFMEMORY;
 129
 130     if (SUCCEEDED(OutputPin_Init(pPinInfo, props, pUserData, pQueryAccept, pCritSec, pPinImpl)))
 131     {
 132         pPinImpl->pin.lpVtbl = &TransformFilter_OutputPin_Vtbl;
 133
 134         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
 135         return S_OK;
 136     }
 137     return E_FAIL;
 138 }
 139
 140 HRESULT TransformFilter_Create(TransformFilterImpl* pTransformFilter, const CLSID* pClsid, const TransformFuncsTable* pFuncsTable)
 141 {
 142     HRESULT hr;
 143     PIN_INFO piInput;
 144     PIN_INFO piOutput;
 145
 146     /* pTransformFilter is already allocated */
 147     pTransformFilter->clsid = *pClsid;
 148     pTransformFilter->pFuncsTable = pFuncsTable;
 149
 150     pTransformFilter->lpVtbl = &TransformFilter_Vtbl;
 151
 152     pTransformFilter->refCount = 1;
 153     InitializeCriticalSection(&pTransformFilter->csFilter);
 154     pTransformFilter->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": TransformFilterImpl.csFilter");
 155     pTransformFilter->state = State_Stopped;
 156     pTransformFilter->pClock = NULL;
 157     ZeroMemory(&pTransformFilter->filterInfo, sizeof(FILTER_INFO));
 158
 159     pTransformFilter->ppPins = CoTaskMemAlloc(2 * sizeof(IPin *));
 160
 161     /* construct input pin */
 162     piInput.dir = PINDIR_INPUT;
 163     piInput.pFilter = (IBaseFilter *)pTransformFilter;
 164     lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
 165     piOutput.dir = PINDIR_OUTPUT;
 166     piOutput.pFilter = (IBaseFilter *)pTransformFilter;
 167     lstrcpynW(piOutput.achName, wcsOutputPinName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
 168
 169     hr = TransformFilter_InputPin_Construct(&piInput, TransformFilter_Sample, pTransformFilter, TransformFilter_Input_QueryAccept, &pTransformFilter->csFilter, &pTransformFilter->ppPins[0]);
 170
 171     if (SUCCEEDED(hr))
 172     {
 173         ALLOCATOR_PROPERTIES props;
 174         props.cbAlign = 1;
 175         props.cbPrefix = 0;
 176         props.cbBuffer = 0; /* Will be updated at connection time */
 177         props.cBuffers = 2;
 178
 179         hr = TransformFilter_OutputPin_Construct(&piOutput, &props, pTransformFilter, TransformFilter_Output_QueryAccept, &pTransformFilter->csFilter, &pTransformFilter->ppPins[1]);
 180
 181         if (FAILED(hr))
 182             ERR("Cannot create output pin (%x)\n", hr);
 183     }
 184     else
 185     {
 186         CoTaskMemFree(pTransformFilter->ppPins);
 187         pTransformFilter->csFilter.DebugInfo->Spare[0] = 0;
 188         DeleteCriticalSection(&pTransformFilter->csFilter);
 189         CoTaskMemFree(pTransformFilter);
 190     }
 191
 192     return hr;
 193 }
 194
 195 static HRESULT WINAPI TransformFilter_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 196 {
 197     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 198     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
 199
 200     *ppv = NULL;
 201
 202     if (IsEqualIID(riid, &IID_IUnknown))
 203         *ppv = (LPVOID)This;
 204     else if (IsEqualIID(riid, &IID_IPersist))
 205         *ppv = (LPVOID)This;
 206     else if (IsEqualIID(riid, &IID_IMediaFilter))
 207         *ppv = (LPVOID)This;
 208     else if (IsEqualIID(riid, &IID_IBaseFilter))
 209         *ppv = (LPVOID)This;
 210
 211     if (*ppv)
 212     {
 213         IUnknown_AddRef((IUnknown *)(*ppv));
 214         return S_OK;
 215     }
 216
 217     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 218
 219     return E_NOINTERFACE;
 220 }
 221
 222 static ULONG WINAPI TransformFilter_AddRef(IBaseFilter * iface)
 223 {
 224     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 225     ULONG refCount = InterlockedIncrement(&This->refCount);
 226
 227     TRACE("(%p/%p)->() AddRef from %d\n", This, iface, refCount - 1);
 228
 229     return refCount;
 230 }
 231
 232 static ULONG WINAPI TransformFilter_Release(IBaseFilter * iface)
 233 {
 234     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 235     ULONG refCount = InterlockedDecrement(&This->refCount);
 236
 237     TRACE("(%p/%p)->() Release from %d\n", This, iface, refCount + 1);
 238
 239     if (!refCount)
 240     {
 241         ULONG i;
 242
 243         if (This->pClock)
 244             IReferenceClock_Release(This->pClock);
 245
 246         for (i = 0; i < 2; i++)
 247         {
 248             IPin *pConnectedTo;
 249
 250             if (SUCCEEDED(IPin_ConnectedTo(This->ppPins[i], &pConnectedTo)))
 251             {
 252                 IPin_Disconnect(pConnectedTo);
 253                 IPin_Release(pConnectedTo);
 254             }
 255             IPin_Disconnect(This->ppPins[i]);
 256
 257             IPin_Release(This->ppPins[i]);
 258         }
 259
 260         CoTaskMemFree(This->ppPins);
 261         This->lpVtbl = NULL;
 262
 263         This->csFilter.DebugInfo->Spare[0] = 0;
 264         DeleteCriticalSection(&This->csFilter);
 265
 266         TRACE("Destroying transform filter\n");
 267         CoTaskMemFree(This);
 268
 269         return 0;
 270     }
 271     else
 272         return refCount;
 273 }
 274
 275 /** IPersist methods **/
 276
 277 static HRESULT WINAPI TransformFilter_GetClassID(IBaseFilter * iface, CLSID * pClsid)
 278 {
 279     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 280
 281     TRACE("(%p/%p)->(%p)\n", This, iface, pClsid);
 282
 283     *pClsid = This->clsid;
 284
 285     return S_OK;
 286 }
 287
 288 /** IMediaFilter methods **/
 289
 290 static HRESULT WINAPI TransformFilter_Stop(IBaseFilter * iface)
 291 {
 292     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 293
 294     TRACE("(%p/%p)\n", This, iface);
 295
 296     EnterCriticalSection(&This->csFilter);
 297     {
 298         This->state = State_Stopped;
 299         if (This->pFuncsTable->pfnProcessEnd)
 300             This->pFuncsTable->pfnProcessEnd(This);
 301     }
 302     LeaveCriticalSection(&This->csFilter);
 303
 304     return S_OK;
 305 }
 306
 307 static HRESULT WINAPI TransformFilter_Pause(IBaseFilter * iface)
 308 {
 309     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 310
 311     TRACE("(%p/%p)->()\n", This, iface);
 312
 313     EnterCriticalSection(&This->csFilter);
 314     {
 315         This->state = State_Paused;
 316     }
 317     LeaveCriticalSection(&This->csFilter);
 318
 319     return S_OK;
 320 }
 321
 322 static HRESULT WINAPI TransformFilter_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 323 {
 324     HRESULT hr = S_OK;
 325     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 326
 327     TRACE("(%p/%p)->(%s)\n", This, iface, wine_dbgstr_longlong(tStart));
 328
 329     EnterCriticalSection(&This->csFilter);
 330     {
 331         This->rtStreamStart = tStart;
 332         This->state = State_Running;
 333         OutputPin_CommitAllocator((OutputPin *)This->ppPins[1]);
 334         if (This->pFuncsTable->pfnProcessBegin)
 335             This->pFuncsTable->pfnProcessBegin(This);
 336     }
 337     LeaveCriticalSection(&This->csFilter);
 338
 339     return hr;
 340 }
 341
 342 static HRESULT WINAPI TransformFilter_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
 343 {
 344     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 345
 346     TRACE("(%p/%p)->(%d, %p)\n", This, iface, dwMilliSecsTimeout, pState);
 347
 348     EnterCriticalSection(&This->csFilter);
 349     {
 350         *pState = This->state;
 351     }
 352     LeaveCriticalSection(&This->csFilter);
 353
 354     return S_OK;
 355 }
 356
 357 static HRESULT WINAPI TransformFilter_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
 358 {
 359     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 360
 361     TRACE("(%p/%p)->(%p)\n", This, iface, pClock);
 362
 363     EnterCriticalSection(&This->csFilter);
 364     {
 365         if (This->pClock)
 366             IReferenceClock_Release(This->pClock);
 367         This->pClock = pClock;
 368         if (This->pClock)
 369             IReferenceClock_AddRef(This->pClock);
 370     }
 371     LeaveCriticalSection(&This->csFilter);
 372
 373     return S_OK;
 374 }
 375
 376 static HRESULT WINAPI TransformFilter_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
 377 {
 378     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 379
 380     TRACE("(%p/%p)->(%p)\n", This, iface, ppClock);
 381
 382     EnterCriticalSection(&This->csFilter);
 383     {
 384         *ppClock = This->pClock;
 385         IReferenceClock_AddRef(This->pClock);
 386     }
 387     LeaveCriticalSection(&This->csFilter);
 388
 389     return S_OK;
 390 }
 391
 392 /** IBaseFilter implementation **/
 393
 394 static HRESULT WINAPI TransformFilter_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
 395 {
 396     ENUMPINDETAILS epd;
 397     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 398
 399     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 400
 401     epd.cPins = 2; /* input and output pins */
 402     epd.ppPins = This->ppPins;
 403     return IEnumPinsImpl_Construct(&epd, ppEnum);
 404 }
 405
 406 static HRESULT WINAPI TransformFilter_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 407 {
 408     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 409
 410     TRACE("(%p/%p)->(%p,%p)\n", This, iface, debugstr_w(Id), ppPin);
 411
 412     return E_NOTIMPL;
 413 }
 414
 415 static HRESULT WINAPI TransformFilter_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
 416 {
 417     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 418
 419     TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
 420
 421     strcpyW(pInfo->achName, This->filterInfo.achName);
 422     pInfo->pGraph = This->filterInfo.pGraph;
 423
 424     if (pInfo->pGraph)
 425         IFilterGraph_AddRef(pInfo->pGraph);
 426
 427     return S_OK;
 428 }
 429
 430 static HRESULT WINAPI TransformFilter_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
 431 {
 432     HRESULT hr = S_OK;
 433     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 434
 435     TRACE("(%p/%p)->(%p, %s)\n", This, iface, pGraph, debugstr_w(pName));
 436
 437     EnterCriticalSection(&This->csFilter);
 438     {
 439         if (pName)
 440             strcpyW(This->filterInfo.achName, pName);
 441         else
 442             *This->filterInfo.achName = '\0';
 443         This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
 444     }
 445     LeaveCriticalSection(&This->csFilter);
 446
 447     return hr;
 448 }
 449
 450 static HRESULT WINAPI TransformFilter_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
 451 {
 452     TransformFilterImpl *This = (TransformFilterImpl *)iface;
 453     TRACE("(%p/%p)->(%p)\n", This, iface, pVendorInfo);
 454     return E_NOTIMPL;
 455 }
 456
 457 static const IBaseFilterVtbl TransformFilter_Vtbl =
 458 {
 459     TransformFilter_QueryInterface,
 460     TransformFilter_AddRef,
 461     TransformFilter_Release,
 462     TransformFilter_GetClassID,
 463     TransformFilter_Stop,
 464     TransformFilter_Pause,
 465     TransformFilter_Run,
 466     TransformFilter_GetState,
 467     TransformFilter_SetSyncSource,
 468     TransformFilter_GetSyncSource,
 469     TransformFilter_EnumPins,
 470     TransformFilter_FindPin,
 471     TransformFilter_QueryFilterInfo,
 472     TransformFilter_JoinFilterGraph,
 473     TransformFilter_QueryVendorInfo
 474 };
 475
 476 static HRESULT WINAPI TransformFilter_InputPin_EndOfStream(IPin * iface)
 477 {
 478     InputPin* This = (InputPin*) iface;
 479     TransformFilterImpl* pTransform;
 480     IPin* ppin;
 481     HRESULT hr;
 482
 483     TRACE("(%p)->()\n", iface);
 484
 485     /* Since we process samples synchronously, just forward notification downstream */
 486     pTransform = (TransformFilterImpl*)This->pin.pinInfo.pFilter;
 487     if (!pTransform)
 488         hr = E_FAIL;
 489     else
 490         hr = IPin_ConnectedTo(pTransform->ppPins[1], &ppin);
 491     if (SUCCEEDED(hr))
 492     {
 493         hr = IPin_EndOfStream(ppin);
 494         IPin_Release(ppin);
 495     }
 496
 497     if (FAILED(hr))
 498         ERR("%x\n", hr);
 499     return hr;
 500 }
 501
 502 static HRESULT WINAPI TransformFilter_InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 503 {
 504     InputPin* This = (InputPin*) iface;
 505     TransformFilterImpl* pTransform;
 506     HRESULT hr;
 507
 508     TRACE("(%p)->(%p, %p)\n", iface, pReceivePin, pmt);
 509
 510     pTransform = (TransformFilterImpl*)This->pin.pinInfo.pFilter;
 511
 512     hr = pTransform->pFuncsTable->pfnConnectInput(pTransform, pmt);
 513     if (SUCCEEDED(hr))
 514     {
 515         hr = InputPin_ReceiveConnection(iface, pReceivePin, pmt);
 516         if (FAILED(hr))
 517             pTransform->pFuncsTable->pfnCleanup(pTransform);
 518     }
 519
 520     return hr;
 521 }
 522
 523 static HRESULT WINAPI TransformFilter_InputPin_Disconnect(IPin * iface)
 524 {
 525     InputPin* This = (InputPin*) iface;
 526     TransformFilterImpl* pTransform;
 527
 528     TRACE("(%p)->()\n", iface);
 529
 530     pTransform = (TransformFilterImpl*)This->pin.pinInfo.pFilter;
 531     pTransform->pFuncsTable->pfnCleanup(pTransform);
 532
 533     return IPinImpl_Disconnect(iface);
 534 }
 535
 536 static const IPinVtbl TransformFilter_InputPin_Vtbl =
 537 {
 538     InputPin_QueryInterface,
 539     IPinImpl_AddRef,
 540     InputPin_Release,
 541     InputPin_Connect,
 542     TransformFilter_InputPin_ReceiveConnection,
 543     TransformFilter_InputPin_Disconnect,
 544     IPinImpl_ConnectedTo,
 545     IPinImpl_ConnectionMediaType,
 546     IPinImpl_QueryPinInfo,
 547     IPinImpl_QueryDirection,
 548     IPinImpl_QueryId,
 549     IPinImpl_QueryAccept,
 550     IPinImpl_EnumMediaTypes,
 551     IPinImpl_QueryInternalConnections,
 552     TransformFilter_InputPin_EndOfStream,
 553     InputPin_BeginFlush,
 554     InputPin_EndFlush,
 555     InputPin_NewSegment
 556 };
 557
 558 static HRESULT WINAPI TransformFilter_Output_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
 559 {
 560     IPinImpl *This = (IPinImpl *)iface;
 561     ENUMMEDIADETAILS emd;
 562
 563     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 564
 565     emd.cMediaTypes = 1;
 566     emd.pMediaTypes = &This->mtCurrent;
 567
 568     return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
 569 }
 570
 571 static const IPinVtbl TransformFilter_OutputPin_Vtbl =
 572 {
 573     OutputPin_QueryInterface,
 574     IPinImpl_AddRef,
 575     OutputPin_Release,
 576     OutputPin_Connect,
 577     OutputPin_ReceiveConnection,
 578     OutputPin_Disconnect,
 579     IPinImpl_ConnectedTo,
 580     IPinImpl_ConnectionMediaType,
 581     IPinImpl_QueryPinInfo,
 582     IPinImpl_QueryDirection,
 583     IPinImpl_QueryId,
 584     IPinImpl_QueryAccept,
 585     TransformFilter_Output_EnumMediaTypes,
 586     IPinImpl_QueryInternalConnections,
 587     OutputPin_EndOfStream,
 588     OutputPin_BeginFlush,
 589     OutputPin_EndFlush,
 590     OutputPin_NewSegment
 591 };
 592
 593 static const IMemInputPinVtbl MemInputPin_Vtbl =
 594 {
 595     MemInputPin_QueryInterface,
 596     MemInputPin_AddRef,
 597     MemInputPin_Release,
 598     MemInputPin_GetAllocator,
 599     MemInputPin_NotifyAllocator,
 600     MemInputPin_GetAllocatorRequirements,
 601     MemInputPin_Receive,
 602     MemInputPin_ReceiveMultiple,
 603     MemInputPin_ReceiveCanBlock
 604 };