dlls/strmbase/renderer.c

   1 /*
   2  * Generic Implementation of strmbase Base Renderer classes
   3  *
   4  * Copyright 2012 Aric Stewart, CodeWeavers
   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 #define COBJMACROS
  22
  23 #include "dshow.h"
  24 #include "wine/debug.h"
  25 #include "wine/unicode.h"
  26 #include "wine/strmbase.h"
  27 #include "uuids.h"
  28 #include "vfwmsgs.h"
  29 #include "strmbase_private.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
  32
  33 static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
  34 static const WCHAR wcsAltInputPinName[] = {'I','n',0};
  35
  36 static inline BaseInputPin *impl_BaseInputPin_from_IPin( IPin *iface )
  37 {
  38     return CONTAINING_RECORD(iface, BaseInputPin, pin.IPin_iface);
  39 }
  40
  41 static inline BaseRenderer *impl_from_IBaseFilter(IBaseFilter *iface)
  42 {
  43     return CONTAINING_RECORD(iface, BaseRenderer, filter.IBaseFilter_iface);
  44 }
  45
  46 static inline BaseRenderer *impl_from_BaseFilter(BaseFilter *iface)
  47 {
  48     return CONTAINING_RECORD(iface, BaseRenderer, filter);
  49 }
  50
  51 static const IQualityControlVtbl Renderer_QualityControl_Vtbl = {
  52     QualityControlImpl_QueryInterface,
  53     QualityControlImpl_AddRef,
  54     QualityControlImpl_Release,
  55     QualityControlImpl_Notify,
  56     QualityControlImpl_SetSink
  57 };
  58
  59 static HRESULT WINAPI BaseRenderer_InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
  60 {
  61     BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
  62     BaseRenderer *renderer = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
  63     HRESULT hr = S_OK;
  64
  65     TRACE("(%p/%p)->(%p, %p)\n", This, renderer, pReceivePin, pmt);
  66
  67     EnterCriticalSection(This->pin.pCritSec);
  68     hr = BaseInputPinImpl_ReceiveConnection(iface, pReceivePin, pmt);
  69     if (SUCCEEDED(hr))
  70     {
  71         if (renderer->pFuncsTable->pfnCompleteConnect)
  72             hr = renderer->pFuncsTable->pfnCompleteConnect(renderer, pReceivePin);
  73     }
  74     LeaveCriticalSection(This->pin.pCritSec);
  75
  76     return hr;
  77 }
  78
  79 static HRESULT WINAPI BaseRenderer_InputPin_Disconnect(IPin * iface)
  80 {
  81     BaseInputPin *This = impl_BaseInputPin_from_IPin(iface);
  82     BaseRenderer *renderer = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
  83     HRESULT hr;
  84
  85     TRACE("(%p/%p)\n", This, renderer);
  86
  87     EnterCriticalSection(This->pin.pCritSec);
  88     hr = BasePinImpl_Disconnect(iface);
  89     if (SUCCEEDED(hr))
  90     {
  91         if (renderer->pFuncsTable->pfnBreakConnect)
  92             hr = renderer->pFuncsTable->pfnBreakConnect(renderer);
  93     }
  94     BaseRendererImpl_ClearPendingSample(renderer);
  95     LeaveCriticalSection(This->pin.pCritSec);
  96
  97     return hr;
  98 }
  99
 100 static HRESULT WINAPI BaseRenderer_InputPin_EndOfStream(IPin * iface)
 101 {
 102     HRESULT hr = S_OK;
 103     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 104     BaseRenderer *pFilter = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 105
 106     TRACE("(%p/%p)->()\n", This, pFilter);
 107
 108     EnterCriticalSection(&pFilter->csRenderLock);
 109     EnterCriticalSection(&pFilter->filter.csFilter);
 110     hr = BaseInputPinImpl_EndOfStream(iface);
 111     EnterCriticalSection(This->pin.pCritSec);
 112     if (SUCCEEDED(hr))
 113     {
 114         if (pFilter->pFuncsTable->pfnEndOfStream)
 115             hr = pFilter->pFuncsTable->pfnEndOfStream(pFilter);
 116         else
 117             hr = BaseRendererImpl_EndOfStream(pFilter);
 118     }
 119     LeaveCriticalSection(This->pin.pCritSec);
 120     LeaveCriticalSection(&pFilter->filter.csFilter);
 121     LeaveCriticalSection(&pFilter->csRenderLock);
 122     return hr;
 123 }
 124
 125 static HRESULT WINAPI BaseRenderer_InputPin_BeginFlush(IPin * iface)
 126 {
 127     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 128     BaseRenderer *pFilter = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 129     HRESULT hr = S_OK;
 130
 131     TRACE("(%p/%p)->()\n", This, iface);
 132
 133     EnterCriticalSection(&pFilter->csRenderLock);
 134     EnterCriticalSection(&pFilter->filter.csFilter);
 135     EnterCriticalSection(This->pin.pCritSec);
 136     hr = BaseInputPinImpl_BeginFlush(iface);
 137     if (SUCCEEDED(hr))
 138     {
 139         if (pFilter->pFuncsTable->pfnBeginFlush)
 140             hr = pFilter->pFuncsTable->pfnBeginFlush(pFilter);
 141         else
 142             hr = BaseRendererImpl_BeginFlush(pFilter);
 143     }
 144     LeaveCriticalSection(This->pin.pCritSec);
 145     LeaveCriticalSection(&pFilter->filter.csFilter);
 146     LeaveCriticalSection(&pFilter->csRenderLock);
 147     return hr;
 148 }
 149
 150 static HRESULT WINAPI BaseRenderer_InputPin_EndFlush(IPin * iface)
 151 {
 152     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 153     BaseRenderer *pFilter = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 154     HRESULT hr = S_OK;
 155
 156     TRACE("(%p/%p)->()\n", This, pFilter);
 157
 158     EnterCriticalSection(&pFilter->csRenderLock);
 159     EnterCriticalSection(&pFilter->filter.csFilter);
 160     EnterCriticalSection(This->pin.pCritSec);
 161     hr = BaseInputPinImpl_EndFlush(iface);
 162     if (SUCCEEDED(hr))
 163     {
 164         if (pFilter->pFuncsTable->pfnEndFlush)
 165             hr = pFilter->pFuncsTable->pfnEndFlush(pFilter);
 166         else
 167             hr = BaseRendererImpl_EndFlush(pFilter);
 168     }
 169     LeaveCriticalSection(This->pin.pCritSec);
 170     LeaveCriticalSection(&pFilter->filter.csFilter);
 171     LeaveCriticalSection(&pFilter->csRenderLock);
 172     return hr;
 173 }
 174
 175 static const IPinVtbl BaseRenderer_InputPin_Vtbl =
 176 {
 177     BaseInputPinImpl_QueryInterface,
 178     BasePinImpl_AddRef,
 179     BaseInputPinImpl_Release,
 180     BaseInputPinImpl_Connect,
 181     BaseRenderer_InputPin_ReceiveConnection,
 182     BaseRenderer_InputPin_Disconnect,
 183     BasePinImpl_ConnectedTo,
 184     BasePinImpl_ConnectionMediaType,
 185     BasePinImpl_QueryPinInfo,
 186     BasePinImpl_QueryDirection,
 187     BasePinImpl_QueryId,
 188     BaseInputPinImpl_QueryAccept,
 189     BasePinImpl_EnumMediaTypes,
 190     BasePinImpl_QueryInternalConnections,
 191     BaseRenderer_InputPin_EndOfStream,
 192     BaseRenderer_InputPin_BeginFlush,
 193     BaseRenderer_InputPin_EndFlush,
 194     BaseInputPinImpl_NewSegment
 195 };
 196
 197 static IPin* WINAPI BaseRenderer_GetPin(BaseFilter *iface, int pos)
 198 {
 199     BaseRenderer *This = impl_from_BaseFilter(iface);
 200
 201     if (pos >= 1 || pos < 0)
 202         return NULL;
 203
 204     IPin_AddRef(&This->pInputPin->pin.IPin_iface);
 205     return &This->pInputPin->pin.IPin_iface;
 206 }
 207
 208 static LONG WINAPI BaseRenderer_GetPinCount(BaseFilter *iface)
 209 {
 210     return 1;
 211 }
 212
 213 static HRESULT WINAPI BaseRenderer_Input_CheckMediaType(BasePin *pin, const AM_MEDIA_TYPE * pmt)
 214 {
 215     BaseRenderer *This = impl_from_IBaseFilter(pin->pinInfo.pFilter);
 216     return This->pFuncsTable->pfnCheckMediaType(This, pmt);
 217 }
 218
 219 static HRESULT WINAPI BaseRenderer_Receive(BaseInputPin *pin, IMediaSample * pSample)
 220 {
 221     BaseRenderer *This = impl_from_IBaseFilter(pin->pin.pinInfo.pFilter);
 222     return BaseRendererImpl_Receive(This, pSample);
 223 }
 224
 225 static const BaseFilterFuncTable RendererBaseFilterFuncTable = {
 226     BaseRenderer_GetPin,
 227     BaseRenderer_GetPinCount
 228 };
 229
 230 static const BaseInputPinFuncTable input_BaseInputFuncTable = {
 231     {
 232         BaseRenderer_Input_CheckMediaType,
 233         NULL,
 234         BasePinImpl_GetMediaTypeVersion,
 235         BasePinImpl_GetMediaType
 236     },
 237     BaseRenderer_Receive
 238 };
 239
 240
 241 HRESULT WINAPI BaseRenderer_Init(BaseRenderer * This, const IBaseFilterVtbl *Vtbl, IUnknown *pUnkOuter, const CLSID *pClsid, DWORD_PTR DebugInfo, const BaseRendererFuncTable* pBaseFuncsTable)
 242 {
 243     PIN_INFO piInput;
 244     HRESULT hr;
 245
 246     BaseFilter_Init(&This->filter, Vtbl, pClsid, DebugInfo, &RendererBaseFilterFuncTable);
 247
 248     This->pFuncsTable = pBaseFuncsTable;
 249
 250     /* construct input pin */
 251     piInput.dir = PINDIR_INPUT;
 252     piInput.pFilter = &This->filter.IBaseFilter_iface;
 253     lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
 254
 255     hr = BaseInputPin_Construct(&BaseRenderer_InputPin_Vtbl, sizeof(BaseInputPin), &piInput,
 256             &input_BaseInputFuncTable, &This->filter.csFilter, NULL, (IPin **)&This->pInputPin);
 257
 258     if (SUCCEEDED(hr))
 259     {
 260         hr = CreatePosPassThru(pUnkOuter ? pUnkOuter: (IUnknown*)This, TRUE, &This->pInputPin->pin.IPin_iface, &This->pPosition);
 261         if (FAILED(hr))
 262             return hr;
 263
 264         InitializeCriticalSection(&This->csRenderLock);
 265         This->csRenderLock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__": BaseRenderer.csRenderLock");
 266         This->evComplete = CreateEventW(NULL, TRUE, TRUE, NULL);
 267         This->ThreadSignal = CreateEventW(NULL, TRUE, TRUE, NULL);
 268         This->RenderEvent = CreateEventW(NULL, FALSE, FALSE, NULL);
 269         This->pMediaSample = NULL;
 270
 271         QualityControlImpl_Create(&This->pInputPin->pin.IPin_iface, &This->filter.IBaseFilter_iface, &This->qcimpl);
 272         This->qcimpl->IQualityControl_iface.lpVtbl = &Renderer_QualityControl_Vtbl;
 273     }
 274
 275     return hr;
 276 }
 277
 278 HRESULT WINAPI BaseRendererImpl_QueryInterface(IBaseFilter* iface, REFIID riid, LPVOID * ppv)
 279 {
 280     BaseRenderer *This = impl_from_IBaseFilter(iface);
 281
 282     if (IsEqualIID(riid, &IID_IMediaSeeking) || IsEqualIID(riid, &IID_IMediaPosition))
 283         return IUnknown_QueryInterface(This->pPosition, riid, ppv);
 284     else if (IsEqualIID(riid, &IID_IQualityControl))
 285     {
 286         *ppv = &This->qcimpl->IQualityControl_iface;
 287         IUnknown_AddRef((IUnknown *)(*ppv));
 288         return S_OK;
 289     }
 290     else
 291         return BaseFilterImpl_QueryInterface(iface, riid, ppv);
 292 }
 293
 294 ULONG WINAPI BaseRendererImpl_Release(IBaseFilter* iface)
 295 {
 296     BaseRenderer *This = impl_from_IBaseFilter(iface);
 297     ULONG refCount = InterlockedDecrement(&This->filter.refCount);
 298
 299     if (!refCount)
 300     {
 301         IPin *pConnectedTo;
 302
 303         if (SUCCEEDED(IPin_ConnectedTo(&This->pInputPin->pin.IPin_iface, &pConnectedTo)))
 304         {
 305             IPin_Disconnect(pConnectedTo);
 306             IPin_Release(pConnectedTo);
 307         }
 308         IPin_Disconnect(&This->pInputPin->pin.IPin_iface);
 309         IPin_Release(&This->pInputPin->pin.IPin_iface);
 310
 311         if (This->pPosition)
 312             IUnknown_Release(This->pPosition);
 313
 314         This->csRenderLock.DebugInfo->Spare[0] = 0;
 315         DeleteCriticalSection(&This->csRenderLock);
 316
 317         BaseRendererImpl_ClearPendingSample(This);
 318         CloseHandle(This->evComplete);
 319         CloseHandle(This->ThreadSignal);
 320         CloseHandle(This->RenderEvent);
 321         QualityControlImpl_Destroy(This->qcimpl);
 322         BaseFilter_Destroy(&This->filter);
 323     }
 324     return refCount;
 325 }
 326
 327 HRESULT WINAPI BaseRendererImpl_Receive(BaseRenderer *This, IMediaSample * pSample)
 328 {
 329     HRESULT hr = S_OK;
 330     REFERENCE_TIME start, stop;
 331     AM_MEDIA_TYPE *pmt;
 332
 333     TRACE("(%p)->%p\n", This, pSample);
 334
 335     if (This->pInputPin->end_of_stream || This->pInputPin->flushing)
 336         return S_FALSE;
 337
 338     if (This->filter.state == State_Stopped)
 339         return VFW_E_WRONG_STATE;
 340
 341     if (IMediaSample_GetMediaType(pSample, &pmt) == S_OK)
 342     {
 343         if (FAILED(This->pFuncsTable->pfnCheckMediaType(This, pmt)))
 344         {
 345             return VFW_E_TYPE_NOT_ACCEPTED;
 346         }
 347     }
 348
 349     This->pMediaSample = pSample;
 350     IMediaSample_AddRef(pSample);
 351
 352     if (This->pFuncsTable->pfnPrepareReceive)
 353         hr = This->pFuncsTable->pfnPrepareReceive(This, pSample);
 354     if (FAILED(hr))
 355     {
 356         if (hr == VFW_E_SAMPLE_REJECTED)
 357             return S_OK;
 358         else
 359             return hr;
 360     }
 361
 362     if (This->pFuncsTable->pfnPrepareRender)
 363         This->pFuncsTable->pfnPrepareRender(This);
 364
 365     EnterCriticalSection(&This->csRenderLock);
 366     if ( This->filter.state == State_Paused )
 367     {
 368         if (This->pFuncsTable->pfnOnReceiveFirstSample)
 369             This->pFuncsTable->pfnOnReceiveFirstSample(This, pSample);
 370
 371         SetEvent(This->evComplete);
 372     }
 373
 374     /* Wait for render Time */
 375     if (SUCCEEDED(IMediaSample_GetTime(pSample, &start, &stop)))
 376     {
 377         hr = S_FALSE;
 378         RendererPosPassThru_RegisterMediaTime(This->pPosition, start);
 379         if (This->pFuncsTable->pfnShouldDrawSampleNow)
 380             hr = This->pFuncsTable->pfnShouldDrawSampleNow(This, pSample, &start, &stop);
 381
 382         if (hr == S_OK)
 383             ;/* Do not wait: drop through */
 384         else if (hr == S_FALSE)
 385         {
 386             if (This->pFuncsTable->pfnOnWaitStart)
 387                 This->pFuncsTable->pfnOnWaitStart(This);
 388
 389             LeaveCriticalSection(&This->csRenderLock);
 390             hr = QualityControlRender_WaitFor(This->qcimpl, pSample, This->RenderEvent);
 391             EnterCriticalSection(&This->csRenderLock);
 392
 393             if (This->pFuncsTable->pfnOnWaitEnd)
 394                 This->pFuncsTable->pfnOnWaitEnd(This);
 395         }
 396         else
 397         {
 398             LeaveCriticalSection(&This->csRenderLock);
 399             /* Drop Sample */
 400             return S_OK;
 401         }
 402     }
 403
 404     if (SUCCEEDED(hr))
 405     {
 406         QualityControlRender_BeginRender(This->qcimpl);
 407         hr = This->pFuncsTable->pfnDoRenderSample(This, pSample);
 408         QualityControlRender_EndRender(This->qcimpl);
 409     }
 410
 411     QualityControlRender_DoQOS(This->qcimpl);
 412
 413     BaseRendererImpl_ClearPendingSample(This);
 414     LeaveCriticalSection(&This->csRenderLock);
 415
 416     return hr;
 417 }
 418
 419 HRESULT WINAPI BaseRendererImpl_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 420 {
 421     BaseRenderer *This = impl_from_IBaseFilter(iface);
 422
 423     TRACE("(%p)->(%s,%p)\n", This, debugstr_w(Id), ppPin);
 424
 425     if (!Id || !ppPin)
 426         return E_POINTER;
 427
 428     if (!lstrcmpiW(Id,wcsInputPinName) || !lstrcmpiW(Id,wcsAltInputPinName))
 429     {
 430         *ppPin = &This->pInputPin->pin.IPin_iface;
 431         IPin_AddRef(*ppPin);
 432         return S_OK;
 433     }
 434     *ppPin = NULL;
 435     return VFW_E_NOT_FOUND;
 436 }
 437
 438 HRESULT WINAPI BaseRendererImpl_Stop(IBaseFilter * iface)
 439 {
 440     BaseRenderer *This = impl_from_IBaseFilter(iface);
 441
 442     TRACE("(%p)->()\n", This);
 443
 444     EnterCriticalSection(&This->csRenderLock);
 445     {
 446         RendererPosPassThru_ResetMediaTime(This->pPosition);
 447         if (This->pFuncsTable->pfnOnStopStreaming)
 448             This->pFuncsTable->pfnOnStopStreaming(This);
 449         This->filter.state = State_Stopped;
 450         SetEvent(This->evComplete);
 451         SetEvent(This->ThreadSignal);
 452         SetEvent(This->RenderEvent);
 453     }
 454     LeaveCriticalSection(&This->csRenderLock);
 455
 456     return S_OK;
 457 }
 458
 459 HRESULT WINAPI BaseRendererImpl_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 460 {
 461     HRESULT hr = S_OK;
 462     BaseRenderer *This = impl_from_IBaseFilter(iface);
 463     TRACE("(%p)->(%s)\n", This, wine_dbgstr_longlong(tStart));
 464
 465     EnterCriticalSection(&This->csRenderLock);
 466     This->filter.rtStreamStart = tStart;
 467     if (This->filter.state == State_Running)
 468         goto out;
 469
 470     SetEvent(This->evComplete);
 471     ResetEvent(This->ThreadSignal);
 472
 473     if (This->pInputPin->pin.pConnectedTo)
 474     {
 475         This->pInputPin->end_of_stream = FALSE;
 476     }
 477     else if (This->filter.filterInfo.pGraph)
 478     {
 479         IMediaEventSink *pEventSink;
 480         hr = IFilterGraph_QueryInterface(This->filter.filterInfo.pGraph, &IID_IMediaEventSink, (LPVOID*)&pEventSink);
 481         if (SUCCEEDED(hr))
 482         {
 483             hr = IMediaEventSink_Notify(pEventSink, EC_COMPLETE, S_OK, (LONG_PTR)This);
 484             IMediaEventSink_Release(pEventSink);
 485         }
 486         hr = S_OK;
 487     }
 488     if (SUCCEEDED(hr))
 489     {
 490         QualityControlRender_Start(This->qcimpl, This->filter.rtStreamStart);
 491         if (This->pFuncsTable->pfnOnStartStreaming)
 492             This->pFuncsTable->pfnOnStartStreaming(This);
 493         if (This->filter.state == State_Stopped)
 494             BaseRendererImpl_ClearPendingSample(This);
 495         SetEvent(This->RenderEvent);
 496         This->filter.state = State_Running;
 497     }
 498 out:
 499     LeaveCriticalSection(&This->csRenderLock);
 500
 501     return hr;
 502 }
 503
 504 HRESULT WINAPI BaseRendererImpl_Pause(IBaseFilter * iface)
 505 {
 506     BaseRenderer *This = impl_from_IBaseFilter(iface);
 507
 508     TRACE("(%p)->()\n", This);
 509
 510     EnterCriticalSection(&This->csRenderLock);
 511     {
 512      if (This->filter.state != State_Paused)
 513         {
 514             if (This->filter.state == State_Stopped)
 515             {
 516                 if (This->pInputPin->pin.pConnectedTo)
 517                     ResetEvent(This->evComplete);
 518                 This->pInputPin->end_of_stream = FALSE;
 519             }
 520             else if (This->pFuncsTable->pfnOnStopStreaming)
 521                 This->pFuncsTable->pfnOnStopStreaming(This);
 522
 523             if (This->filter.state == State_Stopped)
 524                 BaseRendererImpl_ClearPendingSample(This);
 525             ResetEvent(This->RenderEvent);
 526             This->filter.state = State_Paused;
 527         }
 528     }
 529     ResetEvent(This->ThreadSignal);
 530     LeaveCriticalSection(&This->csRenderLock);
 531
 532     return S_OK;
 533 }
 534
 535 HRESULT WINAPI BaseRendererImpl_SetSyncSource(IBaseFilter *iface, IReferenceClock *clock)
 536 {
 537     BaseRenderer *This = impl_from_IBaseFilter(iface);
 538     HRESULT hr;
 539
 540     EnterCriticalSection(&This->filter.csFilter);
 541     QualityControlRender_SetClock(This->qcimpl, clock);
 542     hr = BaseFilterImpl_SetSyncSource(iface, clock);
 543     LeaveCriticalSection(&This->filter.csFilter);
 544     return hr;
 545 }
 546
 547
 548 HRESULT WINAPI BaseRendererImpl_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
 549 {
 550     HRESULT hr;
 551     BaseRenderer *This = impl_from_IBaseFilter(iface);
 552
 553     TRACE("(%p)->(%d, %p)\n", This, dwMilliSecsTimeout, pState);
 554
 555     if (WaitForSingleObject(This->evComplete, dwMilliSecsTimeout) == WAIT_TIMEOUT)
 556         hr = VFW_S_STATE_INTERMEDIATE;
 557     else
 558         hr = S_OK;
 559
 560     BaseFilterImpl_GetState(iface, dwMilliSecsTimeout, pState);
 561
 562     return hr;
 563 }
 564
 565 HRESULT WINAPI BaseRendererImpl_EndOfStream(BaseRenderer* iface)
 566 {
 567     IMediaEventSink* pEventSink;
 568     IFilterGraph *graph;
 569     HRESULT hr = S_OK;
 570
 571     TRACE("(%p)\n", iface);
 572
 573     graph = iface->filter.filterInfo.pGraph;
 574     if (graph)
 575     {        hr = IFilterGraph_QueryInterface(iface->filter.filterInfo.pGraph, &IID_IMediaEventSink, (LPVOID*)&pEventSink);
 576         if (SUCCEEDED(hr))
 577         {
 578             hr = IMediaEventSink_Notify(pEventSink, EC_COMPLETE, S_OK, (LONG_PTR)iface);
 579             IMediaEventSink_Release(pEventSink);
 580         }
 581     }
 582     RendererPosPassThru_EOS(iface->pPosition);
 583     SetEvent(iface->evComplete);
 584
 585     return hr;
 586 }
 587
 588 HRESULT WINAPI BaseRendererImpl_BeginFlush(BaseRenderer* iface)
 589 {
 590     TRACE("(%p)\n", iface);
 591     BaseRendererImpl_ClearPendingSample(iface);
 592     SetEvent(iface->ThreadSignal);
 593     SetEvent(iface->RenderEvent);
 594     return S_OK;
 595 }
 596
 597 HRESULT WINAPI BaseRendererImpl_EndFlush(BaseRenderer* iface)
 598 {
 599     TRACE("(%p)\n", iface);
 600     QualityControlRender_Start(iface->qcimpl, iface->filter.rtStreamStart);
 601     RendererPosPassThru_ResetMediaTime(iface->pPosition);
 602     ResetEvent(iface->ThreadSignal);
 603     ResetEvent(iface->RenderEvent);
 604     return S_OK;
 605 }
 606
 607 HRESULT WINAPI BaseRendererImpl_ClearPendingSample(BaseRenderer *iface)
 608 {
 609     if (iface->pMediaSample)
 610     {
 611         IMediaSample_Release(iface->pMediaSample);
 612         iface->pMediaSample = NULL;
 613     }
 614     return S_OK;
 615 }