dlls/quartz/nullrenderer.c

   1 /*
   2  * Null Renderer (Promiscuous, not rendering anything at all!)
   3  *
   4  * Copyright 2004 Christian Costa
   5  * Copyright 2008 Maarten Lankhorst
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23
  24 #define NONAMELESSSTRUCT
  25 #define NONAMELESSUNION
  26 #include "quartz_private.h"
  27 #include "control_private.h"
  28 #include "pin.h"
  29
  30 #include "uuids.h"
  31 #include "vfwmsgs.h"
  32 #include "amvideo.h"
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "dshow.h"
  36 #include "evcode.h"
  37 #include "strmif.h"
  38 #include "ddraw.h"
  39
  40 #include "wine/unicode.h"
  41 #include "wine/debug.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  44
  45 static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
  46
  47 static const IBaseFilterVtbl NullRenderer_Vtbl;
  48 static const IUnknownVtbl IInner_VTable;
  49 static const IPinVtbl NullRenderer_InputPin_Vtbl;
  50
  51 typedef struct NullRendererImpl
  52 {
  53     const IBaseFilterVtbl * lpVtbl;
  54     const IUnknownVtbl * IInner_vtbl;
  55
  56     LONG refCount;
  57     CRITICAL_SECTION csFilter;
  58     FILTER_STATE state;
  59     REFERENCE_TIME rtStreamStart;
  60     IReferenceClock * pClock;
  61     FILTER_INFO filterInfo;
  62
  63     InputPin *pInputPin;
  64     IUnknown * pUnkOuter;
  65     BOOL bUnkOuterValid;
  66     BOOL bAggregatable;
  67     MediaSeekingImpl mediaSeeking;
  68 } NullRendererImpl;
  69
  70 static const IMemInputPinVtbl MemInputPin_Vtbl =
  71 {
  72     MemInputPin_QueryInterface,
  73     MemInputPin_AddRef,
  74     MemInputPin_Release,
  75     MemInputPin_GetAllocator,
  76     MemInputPin_NotifyAllocator,
  77     MemInputPin_GetAllocatorRequirements,
  78     MemInputPin_Receive,
  79     MemInputPin_ReceiveMultiple,
  80     MemInputPin_ReceiveCanBlock
  81 };
  82
  83 static HRESULT NullRenderer_Sample(LPVOID iface, IMediaSample * pSample)
  84 {
  85     LPBYTE pbSrcStream = NULL;
  86     long cbSrcStream = 0;
  87     REFERENCE_TIME tStart, tStop;
  88     HRESULT hr;
  89
  90     TRACE("%p %p\n", iface, pSample);
  91
  92     hr = IMediaSample_GetPointer(pSample, &pbSrcStream);
  93     if (FAILED(hr))
  94     {
  95         ERR("Cannot get pointer to sample data (%x)\n", hr);
  96         return hr;
  97     }
  98
  99     hr = IMediaSample_GetTime(pSample, &tStart, &tStop);
 100     if (FAILED(hr))
 101         ERR("Cannot get sample time (%x)\n", hr);
 102
 103     cbSrcStream = IMediaSample_GetActualDataLength(pSample);
 104
 105     TRACE("val %p %ld\n", pbSrcStream, cbSrcStream);
 106
 107     return S_OK;
 108 }
 109
 110 static HRESULT NullRenderer_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 111 {
 112     TRACE("Not a stub!\n");
 113     return S_OK;
 114 }
 115
 116 static inline NullRendererImpl *impl_from_IMediaSeeking( IMediaSeeking *iface )
 117 {
 118     return (NullRendererImpl *)((char*)iface - FIELD_OFFSET(NullRendererImpl, mediaSeeking.lpVtbl));
 119 }
 120
 121 static HRESULT WINAPI NullRendererImpl_Seeking_QueryInterface(IMediaSeeking * iface, REFIID riid, LPVOID * ppv)
 122 {
 123     NullRendererImpl *This = impl_from_IMediaSeeking(iface);
 124
 125     return IUnknown_QueryInterface((IUnknown *)This, riid, ppv);
 126 }
 127
 128 static ULONG WINAPI NullRendererImpl_Seeking_AddRef(IMediaSeeking * iface)
 129 {
 130     NullRendererImpl *This = impl_from_IMediaSeeking(iface);
 131
 132     return IUnknown_AddRef((IUnknown *)This);
 133 }
 134
 135 static ULONG WINAPI NullRendererImpl_Seeking_Release(IMediaSeeking * iface)
 136 {
 137     NullRendererImpl *This = impl_from_IMediaSeeking(iface);
 138
 139     return IUnknown_Release((IUnknown *)This);
 140 }
 141
 142 static const IMediaSeekingVtbl TransformFilter_Seeking_Vtbl =
 143 {
 144     NullRendererImpl_Seeking_QueryInterface,
 145     NullRendererImpl_Seeking_AddRef,
 146     NullRendererImpl_Seeking_Release,
 147     MediaSeekingImpl_GetCapabilities,
 148     MediaSeekingImpl_CheckCapabilities,
 149     MediaSeekingImpl_IsFormatSupported,
 150     MediaSeekingImpl_QueryPreferredFormat,
 151     MediaSeekingImpl_GetTimeFormat,
 152     MediaSeekingImpl_IsUsingTimeFormat,
 153     MediaSeekingImpl_SetTimeFormat,
 154     MediaSeekingImpl_GetDuration,
 155     MediaSeekingImpl_GetStopPosition,
 156     MediaSeekingImpl_GetCurrentPosition,
 157     MediaSeekingImpl_ConvertTimeFormat,
 158     MediaSeekingImpl_SetPositions,
 159     MediaSeekingImpl_GetPositions,
 160     MediaSeekingImpl_GetAvailable,
 161     MediaSeekingImpl_SetRate,
 162     MediaSeekingImpl_GetRate,
 163     MediaSeekingImpl_GetPreroll
 164 };
 165
 166 static HRESULT NullRendererImpl_Change(IBaseFilter *iface)
 167 {
 168     TRACE("(%p)\n", iface);
 169     return S_OK;
 170 }
 171
 172 HRESULT NullRenderer_create(IUnknown * pUnkOuter, LPVOID * ppv)
 173 {
 174     HRESULT hr;
 175     PIN_INFO piInput;
 176     NullRendererImpl * pNullRenderer;
 177
 178     TRACE("(%p, %p)\n", pUnkOuter, ppv);
 179
 180     *ppv = NULL;
 181
 182     pNullRenderer = CoTaskMemAlloc(sizeof(NullRendererImpl));
 183     pNullRenderer->pUnkOuter = pUnkOuter;
 184     pNullRenderer->bUnkOuterValid = FALSE;
 185     pNullRenderer->bAggregatable = FALSE;
 186     pNullRenderer->IInner_vtbl = &IInner_VTable;
 187
 188     pNullRenderer->lpVtbl = &NullRenderer_Vtbl;
 189     pNullRenderer->refCount = 1;
 190     InitializeCriticalSection(&pNullRenderer->csFilter);
 191     pNullRenderer->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": NullRendererImpl.csFilter");
 192     pNullRenderer->state = State_Stopped;
 193     pNullRenderer->pClock = NULL;
 194     ZeroMemory(&pNullRenderer->filterInfo, sizeof(FILTER_INFO));
 195
 196     /* construct input pin */
 197     piInput.dir = PINDIR_INPUT;
 198     piInput.pFilter = (IBaseFilter *)pNullRenderer;
 199     lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
 200
 201     hr = InputPin_Construct(&NullRenderer_InputPin_Vtbl, &piInput, NullRenderer_Sample, (LPVOID)pNullRenderer, NullRenderer_QueryAccept, NULL, &pNullRenderer->csFilter, (IPin **)&pNullRenderer->pInputPin);
 202
 203     if (SUCCEEDED(hr))
 204     {
 205         MediaSeekingImpl_Init((IBaseFilter*)pNullRenderer, NullRendererImpl_Change, NullRendererImpl_Change, NullRendererImpl_Change, &pNullRenderer->mediaSeeking, &pNullRenderer->csFilter);
 206         pNullRenderer->mediaSeeking.lpVtbl = &TransformFilter_Seeking_Vtbl;
 207
 208         *ppv = (LPVOID)pNullRenderer;
 209     }
 210     else
 211     {
 212         pNullRenderer->csFilter.DebugInfo->Spare[0] = 0;
 213         DeleteCriticalSection(&pNullRenderer->csFilter);
 214         CoTaskMemFree(pNullRenderer);
 215     }
 216
 217     return hr;
 218 }
 219
 220 static HRESULT WINAPI NullRendererInner_QueryInterface(IUnknown * iface, REFIID riid, LPVOID * ppv)
 221 {
 222     ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
 223     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
 224
 225     if (This->bAggregatable)
 226         This->bUnkOuterValid = TRUE;
 227
 228     *ppv = NULL;
 229
 230     if (IsEqualIID(riid, &IID_IUnknown))
 231         *ppv = (LPVOID)&(This->IInner_vtbl);
 232     else if (IsEqualIID(riid, &IID_IPersist))
 233         *ppv = (LPVOID)This;
 234     else if (IsEqualIID(riid, &IID_IMediaFilter))
 235         *ppv = (LPVOID)This;
 236     else if (IsEqualIID(riid, &IID_IBaseFilter))
 237         *ppv = (LPVOID)This;
 238     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 239         *ppv = &This->mediaSeeking;
 240
 241     if (*ppv)
 242     {
 243         IUnknown_AddRef((IUnknown *)(*ppv));
 244         return S_OK;
 245     }
 246
 247     if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow))
 248         FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 249
 250     return E_NOINTERFACE;
 251 }
 252
 253 static ULONG WINAPI NullRendererInner_AddRef(IUnknown * iface)
 254 {
 255     ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
 256     ULONG refCount = InterlockedIncrement(&This->refCount);
 257
 258     TRACE("(%p/%p)->() AddRef from %d\n", This, iface, refCount - 1);
 259
 260     return refCount;
 261 }
 262
 263 static ULONG WINAPI NullRendererInner_Release(IUnknown * iface)
 264 {
 265     ICOM_THIS_MULTI(NullRendererImpl, IInner_vtbl, iface);
 266     ULONG refCount = InterlockedDecrement(&This->refCount);
 267
 268     TRACE("(%p/%p)->() Release from %d\n", This, iface, refCount + 1);
 269
 270     if (!refCount)
 271     {
 272         IPin *pConnectedTo;
 273
 274         if (This->pClock)
 275             IReferenceClock_Release(This->pClock);
 276
 277         if (SUCCEEDED(IPin_ConnectedTo((IPin *)This->pInputPin, &pConnectedTo)))
 278         {
 279             IPin_Disconnect(pConnectedTo);
 280             IPin_Release(pConnectedTo);
 281         }
 282         IPin_Disconnect((IPin *)This->pInputPin);
 283         IPin_Release((IPin *)This->pInputPin);
 284
 285         CoTaskMemFree((IPin *)This->pInputPin);
 286         This->lpVtbl = NULL;
 287
 288         This->csFilter.DebugInfo->Spare[0] = 0;
 289         DeleteCriticalSection(&This->csFilter);
 290
 291         TRACE("Destroying Null Renderer\n");
 292         CoTaskMemFree(This);
 293         return 0;
 294     }
 295     else
 296         return refCount;
 297 }
 298
 299 static const IUnknownVtbl IInner_VTable =
 300 {
 301     NullRendererInner_QueryInterface,
 302     NullRendererInner_AddRef,
 303     NullRendererInner_Release
 304 };
 305
 306 static HRESULT WINAPI NullRenderer_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 307 {
 308     NullRendererImpl *This = (NullRendererImpl *)iface;
 309
 310     if (This->bAggregatable)
 311         This->bUnkOuterValid = TRUE;
 312
 313     if (This->pUnkOuter)
 314     {
 315         if (This->bAggregatable)
 316             return IUnknown_QueryInterface(This->pUnkOuter, riid, ppv);
 317
 318         if (IsEqualIID(riid, &IID_IUnknown))
 319         {
 320             HRESULT hr;
 321
 322             IUnknown_AddRef((IUnknown *)&(This->IInner_vtbl));
 323             hr = IUnknown_QueryInterface((IUnknown *)&(This->IInner_vtbl), riid, ppv);
 324             IUnknown_Release((IUnknown *)&(This->IInner_vtbl));
 325             This->bAggregatable = TRUE;
 326             return hr;
 327         }
 328
 329         *ppv = NULL;
 330         return E_NOINTERFACE;
 331     }
 332
 333     return IUnknown_QueryInterface((IUnknown *)&(This->IInner_vtbl), riid, ppv);
 334 }
 335
 336 static ULONG WINAPI NullRenderer_AddRef(IBaseFilter * iface)
 337 {
 338     NullRendererImpl *This = (NullRendererImpl *)iface;
 339
 340     if (This->pUnkOuter && This->bUnkOuterValid)
 341         return IUnknown_AddRef(This->pUnkOuter);
 342     return IUnknown_AddRef((IUnknown *)&(This->IInner_vtbl));
 343 }
 344
 345 static ULONG WINAPI NullRenderer_Release(IBaseFilter * iface)
 346 {
 347     NullRendererImpl *This = (NullRendererImpl *)iface;
 348
 349     if (This->pUnkOuter && This->bUnkOuterValid)
 350         return IUnknown_Release(This->pUnkOuter);
 351     return IUnknown_Release((IUnknown *)&(This->IInner_vtbl));
 352 }
 353
 354 /** IPersist methods **/
 355
 356 static HRESULT WINAPI NullRenderer_GetClassID(IBaseFilter * iface, CLSID * pClsid)
 357 {
 358     NullRendererImpl *This = (NullRendererImpl *)iface;
 359
 360     TRACE("(%p/%p)->(%p)\n", This, iface, pClsid);
 361
 362     *pClsid = CLSID_NullRenderer;
 363
 364     return S_OK;
 365 }
 366
 367 /** IMediaFilter methods **/
 368
 369 static HRESULT WINAPI NullRenderer_Stop(IBaseFilter * iface)
 370 {
 371     NullRendererImpl *This = (NullRendererImpl *)iface;
 372
 373     TRACE("(%p/%p)->()\n", This, iface);
 374
 375     EnterCriticalSection(&This->csFilter);
 376     {
 377         This->state = State_Stopped;
 378     }
 379     LeaveCriticalSection(&This->csFilter);
 380
 381     return S_OK;
 382 }
 383
 384 static HRESULT WINAPI NullRenderer_Pause(IBaseFilter * iface)
 385 {
 386     NullRendererImpl *This = (NullRendererImpl *)iface;
 387
 388     TRACE("(%p/%p)->()\n", This, iface);
 389
 390     EnterCriticalSection(&This->csFilter);
 391     {
 392         if (This->state == State_Stopped)
 393             This->pInputPin->end_of_stream = 0;
 394         This->state = State_Paused;
 395     }
 396     LeaveCriticalSection(&This->csFilter);
 397
 398     return S_OK;
 399 }
 400
 401 static HRESULT WINAPI NullRenderer_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 402 {
 403     NullRendererImpl *This = (NullRendererImpl *)iface;
 404
 405     TRACE("(%p/%p)->(%s)\n", This, iface, wine_dbgstr_longlong(tStart));
 406
 407     EnterCriticalSection(&This->csFilter);
 408     {
 409         This->rtStreamStart = tStart;
 410         This->state = State_Running;
 411         This->pInputPin->end_of_stream = 0;
 412     }
 413     LeaveCriticalSection(&This->csFilter);
 414
 415     return S_OK;
 416 }
 417
 418 static HRESULT WINAPI NullRenderer_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
 419 {
 420     NullRendererImpl *This = (NullRendererImpl *)iface;
 421
 422     TRACE("(%p/%p)->(%d, %p)\n", This, iface, dwMilliSecsTimeout, pState);
 423
 424     EnterCriticalSection(&This->csFilter);
 425     {
 426         *pState = This->state;
 427     }
 428     LeaveCriticalSection(&This->csFilter);
 429
 430     return S_OK;
 431 }
 432
 433 static HRESULT WINAPI NullRenderer_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
 434 {
 435     NullRendererImpl *This = (NullRendererImpl *)iface;
 436
 437     TRACE("(%p/%p)->(%p)\n", This, iface, pClock);
 438
 439     EnterCriticalSection(&This->csFilter);
 440     {
 441         if (This->pClock)
 442             IReferenceClock_Release(This->pClock);
 443         This->pClock = pClock;
 444         if (This->pClock)
 445             IReferenceClock_AddRef(This->pClock);
 446     }
 447     LeaveCriticalSection(&This->csFilter);
 448
 449     return S_OK;
 450 }
 451
 452 static HRESULT WINAPI NullRenderer_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
 453 {
 454     NullRendererImpl *This = (NullRendererImpl *)iface;
 455
 456     TRACE("(%p/%p)->(%p)\n", This, iface, ppClock);
 457
 458     EnterCriticalSection(&This->csFilter);
 459     {
 460         *ppClock = This->pClock;
 461         if (This->pClock)
 462             IReferenceClock_AddRef(This->pClock);
 463     }
 464     LeaveCriticalSection(&This->csFilter);
 465
 466     return S_OK;
 467 }
 468
 469 /** IBaseFilter implementation **/
 470
 471 static HRESULT NullRenderer_GetPin(IBaseFilter *iface, ULONG pos, IPin **pin, DWORD *lastsynctick)
 472 {
 473     NullRendererImpl *This = (NullRendererImpl *)iface;
 474
 475     /* Our pins are static, not changing so setting static tick count is ok */
 476     *lastsynctick = 0;
 477
 478     if (pos >= 1)
 479         return S_FALSE;
 480
 481     *pin = (IPin *)This->pInputPin;
 482     IPin_AddRef(*pin);
 483     return S_OK;
 484 }
 485
 486 static HRESULT WINAPI NullRenderer_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
 487 {
 488     NullRendererImpl *This = (NullRendererImpl *)iface;
 489
 490     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 491
 492     return IEnumPinsImpl_Construct(ppEnum, NullRenderer_GetPin, iface);
 493 }
 494
 495 static HRESULT WINAPI NullRenderer_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 496 {
 497     NullRendererImpl *This = (NullRendererImpl *)iface;
 498
 499     TRACE("(%p/%p)->(%p,%p)\n", This, iface, debugstr_w(Id), ppPin);
 500
 501     FIXME("NullRenderer::FindPin(...)\n");
 502
 503     /* FIXME: critical section */
 504
 505     return E_NOTIMPL;
 506 }
 507
 508 static HRESULT WINAPI NullRenderer_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
 509 {
 510     NullRendererImpl *This = (NullRendererImpl *)iface;
 511
 512     TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
 513
 514     strcpyW(pInfo->achName, This->filterInfo.achName);
 515     pInfo->pGraph = This->filterInfo.pGraph;
 516
 517     if (pInfo->pGraph)
 518         IFilterGraph_AddRef(pInfo->pGraph);
 519
 520     return S_OK;
 521 }
 522
 523 static HRESULT WINAPI NullRenderer_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
 524 {
 525     NullRendererImpl *This = (NullRendererImpl *)iface;
 526
 527     TRACE("(%p/%p)->(%p, %s)\n", This, iface, pGraph, debugstr_w(pName));
 528
 529     EnterCriticalSection(&This->csFilter);
 530     {
 531         if (pName)
 532             strcpyW(This->filterInfo.achName, pName);
 533         else
 534             *This->filterInfo.achName = '\0';
 535         This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
 536     }
 537     LeaveCriticalSection(&This->csFilter);
 538
 539     return S_OK;
 540 }
 541
 542 static HRESULT WINAPI NullRenderer_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
 543 {
 544     NullRendererImpl *This = (NullRendererImpl *)iface;
 545     TRACE("(%p/%p)->(%p)\n", This, iface, pVendorInfo);
 546     return E_NOTIMPL;
 547 }
 548
 549 static const IBaseFilterVtbl NullRenderer_Vtbl =
 550 {
 551     NullRenderer_QueryInterface,
 552     NullRenderer_AddRef,
 553     NullRenderer_Release,
 554     NullRenderer_GetClassID,
 555     NullRenderer_Stop,
 556     NullRenderer_Pause,
 557     NullRenderer_Run,
 558     NullRenderer_GetState,
 559     NullRenderer_SetSyncSource,
 560     NullRenderer_GetSyncSource,
 561     NullRenderer_EnumPins,
 562     NullRenderer_FindPin,
 563     NullRenderer_QueryFilterInfo,
 564     NullRenderer_JoinFilterGraph,
 565     NullRenderer_QueryVendorInfo
 566 };
 567
 568 static HRESULT WINAPI NullRenderer_InputPin_EndOfStream(IPin * iface)
 569 {
 570     InputPin* This = (InputPin*)iface;
 571     IMediaEventSink* pEventSink;
 572     HRESULT hr;
 573
 574     TRACE("(%p/%p)->()\n", This, iface);
 575
 576     InputPin_EndOfStream(iface);
 577     hr = IFilterGraph_QueryInterface(((NullRendererImpl*)This->pin.pinInfo.pFilter)->filterInfo.pGraph, &IID_IMediaEventSink, (LPVOID*)&pEventSink);
 578     if (SUCCEEDED(hr))
 579     {
 580         hr = IMediaEventSink_Notify(pEventSink, EC_COMPLETE, S_OK, 0);
 581         IMediaEventSink_Release(pEventSink);
 582     }
 583
 584     return hr;
 585 }
 586
 587 static const IPinVtbl NullRenderer_InputPin_Vtbl =
 588 {
 589     InputPin_QueryInterface,
 590     IPinImpl_AddRef,
 591     InputPin_Release,
 592     InputPin_Connect,
 593     InputPin_ReceiveConnection,
 594     IPinImpl_Disconnect,
 595     IPinImpl_ConnectedTo,
 596     IPinImpl_ConnectionMediaType,
 597     IPinImpl_QueryPinInfo,
 598     IPinImpl_QueryDirection,
 599     IPinImpl_QueryId,
 600     IPinImpl_QueryAccept,
 601     IPinImpl_EnumMediaTypes,
 602     IPinImpl_QueryInternalConnections,
 603     NullRenderer_InputPin_EndOfStream,
 604     InputPin_BeginFlush,
 605     InputPin_EndFlush,
 606     InputPin_NewSegment
 607 };