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   1 /*
   2  * Transform Filter (Base for decoders, etc...)
   3  *
   4  * Copyright 2005 Christian Costa
   5  * Copyright 2010 Aric Stewart, CodeWeavers
   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 #include "config.h"
  22 #include <stdarg.h>
  23
  24 #define COBJMACROS
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "dshow.h"
  29 #include "amvideo.h"
  30 #include "strmif.h"
  31 #include "vfw.h"
  32
  33 #include <assert.h>
  34
  35 #include "wine/unicode.h"
  36 #include "wine/debug.h"
  37 #include "wine/strmbase.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
  40
  41 static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
  42 static const WCHAR wcsOutputPinName[] = {'o','u','t','p','u','t',' ','p','i','n',0};
  43
  44 static const IBaseFilterVtbl TransformFilter_Vtbl;
  45 static const IPinVtbl TransformFilter_InputPin_Vtbl;
  46 static const IPinVtbl TransformFilter_OutputPin_Vtbl;
  47 static const IQualityControlVtbl TransformFilter_QualityControl_Vtbl;
  48
  49 static HRESULT WINAPI TransformFilter_Input_CheckMediaType(BasePin *iface, const AM_MEDIA_TYPE * pmt)
  50 {
  51     BaseInputPin* This = (BaseInputPin*) iface;
  52     TransformFilter * pTransform;
  53
  54     TRACE("%p\n", iface);
  55     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
  56
  57     if (pTransform->pFuncsTable->pfnCheckInputType)
  58         return pTransform->pFuncsTable->pfnCheckInputType(pTransform, pmt);
  59     /* Assume OK if there's no query method (the connection will fail if
  60        needed) */
  61     return S_OK;
  62 }
  63
  64 static HRESULT WINAPI TransformFilter_Input_Receive(BaseInputPin *This, IMediaSample *pInSample)
  65 {
  66     HRESULT hr = S_FALSE;
  67     TransformFilter * pTransform;
  68     TRACE("%p\n", This);
  69     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
  70
  71     EnterCriticalSection(&pTransform->csReceive);
  72     if (pTransform->filter.state == State_Stopped)
  73     {
  74         LeaveCriticalSection(&pTransform->csReceive);
  75         return VFW_E_WRONG_STATE;
  76     }
  77
  78     if (This->end_of_stream || This->flushing)
  79     {
  80         LeaveCriticalSection(&pTransform->csReceive);
  81         return S_FALSE;
  82     }
  83
  84     LeaveCriticalSection(&pTransform->csReceive);
  85     if (pTransform->pFuncsTable->pfnReceive)
  86         hr = pTransform->pFuncsTable->pfnReceive(pTransform, pInSample);
  87     else
  88         hr = S_FALSE;
  89
  90     return hr;
  91 }
  92
  93 static HRESULT WINAPI TransformFilter_Output_QueryAccept(IPin *iface, const AM_MEDIA_TYPE * pmt)
  94 {
  95     BasePin *This = (BasePin *)iface;
  96     TransformFilter *pTransformFilter = (TransformFilter *)This->pinInfo.pFilter;
  97     AM_MEDIA_TYPE* outpmt = &pTransformFilter->pmt;
  98     TRACE("%p\n", iface);
  99
 100     if (IsEqualIID(&pmt->majortype, &outpmt->majortype)
 101         && (IsEqualIID(&pmt->subtype, &outpmt->subtype) || IsEqualIID(&outpmt->subtype, &GUID_NULL)))
 102         return S_OK;
 103     return S_FALSE;
 104 }
 105
 106 static HRESULT WINAPI TransformFilter_Output_DecideBufferSize(BaseOutputPin *This, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
 107 {
 108     TransformFilter *pTransformFilter = (TransformFilter *)This->pin.pinInfo.pFilter;
 109     return pTransformFilter->pFuncsTable->pfnDecideBufferSize(pTransformFilter, pAlloc, ppropInputRequest);
 110 }
 111
 112 static HRESULT WINAPI TransformFilter_Output_GetMediaType(BasePin *This, int iPosition, AM_MEDIA_TYPE *pmt)
 113 {
 114     TransformFilter *pTransform = (TransformFilter *)This->pinInfo.pFilter;
 115
 116     if (iPosition < 0)
 117         return E_INVALIDARG;
 118     if (iPosition > 0)
 119         return VFW_S_NO_MORE_ITEMS;
 120     CopyMediaType(pmt, &pTransform->pmt);
 121     return S_OK;
 122 }
 123
 124 static IPin* WINAPI TransformFilter_GetPin(BaseFilter *iface, int pos)
 125 {
 126     TransformFilter *This = (TransformFilter *)iface;
 127
 128     if (pos >= This->npins || pos < 0)
 129         return NULL;
 130
 131     IPin_AddRef(This->ppPins[pos]);
 132     return This->ppPins[pos];
 133 }
 134
 135 static LONG WINAPI TransformFilter_GetPinCount(BaseFilter *iface)
 136 {
 137     TransformFilter *This = (TransformFilter *)iface;
 138
 139     return (This->npins+1);
 140 }
 141
 142 static const BaseFilterFuncTable tfBaseFuncTable = {
 143     TransformFilter_GetPin,
 144     TransformFilter_GetPinCount
 145 };
 146
 147 static const  BasePinFuncTable tf_input_BaseFuncTable = {
 148     TransformFilter_Input_CheckMediaType,
 149     NULL,
 150     BasePinImpl_GetMediaTypeVersion,
 151     BasePinImpl_GetMediaType
 152 };
 153
 154 static const BaseInputPinFuncTable tf_input_BaseInputFuncTable = {
 155     TransformFilter_Input_Receive
 156 };
 157
 158 static const  BasePinFuncTable tf_output_BaseFuncTable = {
 159     NULL,
 160     BaseOutputPinImpl_AttemptConnection,
 161     BasePinImpl_GetMediaTypeVersion,
 162     TransformFilter_Output_GetMediaType
 163 };
 164
 165 static const BaseOutputPinFuncTable tf_output_BaseOutputFuncTable = {
 166     TransformFilter_Output_DecideBufferSize,
 167     BaseOutputPinImpl_DecideAllocator,
 168     BaseOutputPinImpl_BreakConnect
 169 };
 170
 171 static HRESULT TransformFilter_Init(const IBaseFilterVtbl *pVtbl, const CLSID* pClsid, const TransformFilterFuncTable* pFuncsTable, TransformFilter* pTransformFilter)
 172 {
 173     HRESULT hr;
 174     PIN_INFO piInput;
 175     PIN_INFO piOutput;
 176
 177     BaseFilter_Init(&pTransformFilter->filter, pVtbl, pClsid, (DWORD_PTR)(__FILE__ ": TransformFilter.csFilter"), &tfBaseFuncTable);
 178
 179     InitializeCriticalSection(&pTransformFilter->csReceive);
 180     pTransformFilter->csReceive.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__": TransformFilter.csReceive");
 181
 182     /* pTransformFilter is already allocated */
 183     pTransformFilter->pFuncsTable = pFuncsTable;
 184     ZeroMemory(&pTransformFilter->pmt, sizeof(pTransformFilter->pmt));
 185     pTransformFilter->npins = 2;
 186
 187     pTransformFilter->ppPins = CoTaskMemAlloc(2 * sizeof(IPin *));
 188
 189     /* construct input pin */
 190     piInput.dir = PINDIR_INPUT;
 191     piInput.pFilter = (IBaseFilter *)pTransformFilter;
 192     lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
 193     piOutput.dir = PINDIR_OUTPUT;
 194     piOutput.pFilter = (IBaseFilter *)pTransformFilter;
 195     lstrcpynW(piOutput.achName, wcsOutputPinName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
 196
 197     hr = BaseInputPin_Construct(&TransformFilter_InputPin_Vtbl, &piInput, &tf_input_BaseFuncTable, &tf_input_BaseInputFuncTable, &pTransformFilter->filter.csFilter, NULL, &pTransformFilter->ppPins[0]);
 198
 199     if (SUCCEEDED(hr))
 200     {
 201         hr = BaseOutputPin_Construct(&TransformFilter_OutputPin_Vtbl, sizeof(BaseOutputPin), &piOutput, &tf_output_BaseFuncTable, &tf_output_BaseOutputFuncTable, &pTransformFilter->filter.csFilter, &pTransformFilter->ppPins[1]);
 202
 203         if (FAILED(hr))
 204             ERR("Cannot create output pin (%x)\n", hr);
 205         else {
 206             QualityControlImpl_init(&pTransformFilter->qcimpl, (IPin*)pTransformFilter->ppPins[0], (IBaseFilter*)pTransformFilter);
 207             pTransformFilter->qcimpl.lpVtbl = &TransformFilter_QualityControl_Vtbl;
 208         }
 209     }
 210     if (FAILED(hr))
 211     {
 212         CoTaskMemFree(pTransformFilter->ppPins);
 213         BaseFilterImpl_Release((IBaseFilter*)pTransformFilter);
 214     }
 215
 216     return hr;
 217 }
 218
 219 HRESULT TransformFilter_Construct(const IBaseFilterVtbl *pVtbl, LONG filter_size, const CLSID* pClsid, const TransformFilterFuncTable* pFuncsTable, IBaseFilter ** ppTransformFilter)
 220 {
 221     TransformFilter* pTf;
 222
 223     *ppTransformFilter = NULL;
 224
 225     assert(filter_size >= sizeof(TransformFilter));
 226
 227     pTf = CoTaskMemAlloc(filter_size);
 228
 229     if (!pTf)
 230         return E_OUTOFMEMORY;
 231
 232     ZeroMemory(pTf, filter_size);
 233
 234     if (SUCCEEDED(TransformFilter_Init(pVtbl, pClsid, pFuncsTable, pTf)))
 235     {
 236         *ppTransformFilter = (IBaseFilter*)(&pTf->filter.lpVtbl);
 237         return S_OK;
 238     }
 239
 240     CoTaskMemFree(pTf);
 241     return E_FAIL;
 242 }
 243
 244 HRESULT WINAPI TransformFilterImpl_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 245 {
 246     HRESULT hr;
 247     TransformFilter *This = (TransformFilter *)iface;
 248     TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppv);
 249
 250     if (IsEqualIID(riid, &IID_IQualityControl))  {
 251         *ppv = (IQualityControl*)&This->qcimpl;
 252         IUnknown_AddRef((IUnknown*)*ppv);
 253         return S_OK;
 254     }
 255     hr = BaseFilterImpl_QueryInterface(iface, riid, ppv);
 256
 257     if (FAILED(hr) && !IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow) &&
 258         !IsEqualIID(riid, &IID_IAMFilterMiscFlags))
 259         FIXME("No interface for %s!\n", debugstr_guid(riid));
 260
 261     return hr;
 262 }
 263
 264 ULONG WINAPI TransformFilterImpl_Release(IBaseFilter * iface)
 265 {
 266     TransformFilter *This = (TransformFilter *)iface;
 267     ULONG refCount = BaseFilterImpl_Release(iface);
 268
 269     TRACE("(%p/%p)->() Release from %d\n", This, iface, refCount + 1);
 270
 271     if (!refCount)
 272     {
 273         ULONG i;
 274
 275         for (i = 0; i < This->npins; i++)
 276         {
 277             IPin *pConnectedTo;
 278
 279             if (SUCCEEDED(IPin_ConnectedTo(This->ppPins[i], &pConnectedTo)))
 280             {
 281                 IPin_Disconnect(pConnectedTo);
 282                 IPin_Release(pConnectedTo);
 283             }
 284             IPin_Disconnect(This->ppPins[i]);
 285
 286             IPin_Release(This->ppPins[i]);
 287         }
 288
 289         CoTaskMemFree(This->ppPins);
 290
 291         TRACE("Destroying transform filter\n");
 292         This->csReceive.DebugInfo->Spare[0] = 0;
 293         DeleteCriticalSection(&This->csReceive);
 294         FreeMediaType(&This->pmt);
 295         CoTaskMemFree(This);
 296
 297         return 0;
 298     }
 299     else
 300         return refCount;
 301 }
 302
 303 /** IMediaFilter methods **/
 304
 305 HRESULT WINAPI TransformFilterImpl_Stop(IBaseFilter * iface)
 306 {
 307     TransformFilter *This = (TransformFilter *)iface;
 308     HRESULT hr = S_OK;
 309
 310     TRACE("(%p/%p)\n", This, iface);
 311
 312     EnterCriticalSection(&This->csReceive);
 313     {
 314         This->filter.state = State_Stopped;
 315         if (This->pFuncsTable->pfnStopStreaming)
 316             hr = This->pFuncsTable->pfnStopStreaming(This);
 317     }
 318     LeaveCriticalSection(&This->csReceive);
 319
 320     return hr;
 321 }
 322
 323 HRESULT WINAPI TransformFilterImpl_Pause(IBaseFilter * iface)
 324 {
 325     TransformFilter *This = (TransformFilter *)iface;
 326     HRESULT hr;
 327
 328     TRACE("(%p/%p)->()\n", This, iface);
 329
 330     EnterCriticalSection(&This->csReceive);
 331     {
 332         if (This->filter.state == State_Stopped)
 333             hr = IBaseFilter_Run(iface, -1);
 334         else
 335             hr = S_OK;
 336
 337         if (SUCCEEDED(hr))
 338             This->filter.state = State_Paused;
 339     }
 340     LeaveCriticalSection(&This->csReceive);
 341
 342     return hr;
 343 }
 344
 345 HRESULT WINAPI TransformFilterImpl_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 346 {
 347     HRESULT hr = S_OK;
 348     TransformFilter *This = (TransformFilter *)iface;
 349
 350     TRACE("(%p/%p)->(%s)\n", This, iface, wine_dbgstr_longlong(tStart));
 351
 352     EnterCriticalSection(&This->csReceive);
 353     {
 354         if (This->filter.state == State_Stopped)
 355         {
 356             ((BaseInputPin *)This->ppPins[0])->end_of_stream = 0;
 357             if (This->pFuncsTable->pfnStartStreaming)
 358                 hr = This->pFuncsTable->pfnStartStreaming(This);
 359             if (SUCCEEDED(hr))
 360                 hr = BaseOutputPinImpl_Active((BaseOutputPin *)This->ppPins[1]);
 361         }
 362
 363         if (SUCCEEDED(hr))
 364         {
 365             This->filter.rtStreamStart = tStart;
 366             This->filter.state = State_Running;
 367         }
 368     }
 369     LeaveCriticalSection(&This->csReceive);
 370
 371     return hr;
 372 }
 373
 374 /** IBaseFilter implementation **/
 375
 376 HRESULT WINAPI TransformFilterImpl_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 377 {
 378     TransformFilter *This = (TransformFilter *)iface;
 379
 380     TRACE("(%p/%p)->(%p,%p)\n", This, iface, debugstr_w(Id), ppPin);
 381
 382     return E_NOTIMPL;
 383 }
 384
 385 static const IBaseFilterVtbl TransformFilter_Vtbl =
 386 {
 387     TransformFilterImpl_QueryInterface,
 388     BaseFilterImpl_AddRef,
 389     TransformFilterImpl_Release,
 390     BaseFilterImpl_GetClassID,
 391     TransformFilterImpl_Stop,
 392     TransformFilterImpl_Pause,
 393     TransformFilterImpl_Run,
 394     BaseFilterImpl_GetState,
 395     BaseFilterImpl_SetSyncSource,
 396     BaseFilterImpl_GetSyncSource,
 397     BaseFilterImpl_EnumPins,
 398     TransformFilterImpl_FindPin,
 399     BaseFilterImpl_QueryFilterInfo,
 400     BaseFilterImpl_JoinFilterGraph,
 401     BaseFilterImpl_QueryVendorInfo
 402 };
 403
 404 static HRESULT WINAPI TransformFilter_InputPin_EndOfStream(IPin * iface)
 405 {
 406     BaseInputPin* This = (BaseInputPin*) iface;
 407     TransformFilter* pTransform;
 408     IPin* ppin;
 409     HRESULT hr;
 410
 411     TRACE("(%p)->()\n", iface);
 412
 413     /* Since we process samples synchronously, just forward notification downstream */
 414     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
 415     if (!pTransform)
 416         hr = E_FAIL;
 417     else
 418         hr = IPin_ConnectedTo(pTransform->ppPins[1], &ppin);
 419     if (SUCCEEDED(hr))
 420     {
 421         hr = IPin_EndOfStream(ppin);
 422         IPin_Release(ppin);
 423     }
 424
 425     if (FAILED(hr))
 426         ERR("%x\n", hr);
 427     return hr;
 428 }
 429
 430 static HRESULT WINAPI TransformFilter_InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 431 {
 432     BaseInputPin* This = (BaseInputPin*) iface;
 433     TransformFilter* pTransform;
 434     HRESULT hr = S_OK;
 435
 436     TRACE("(%p)->(%p, %p)\n", iface, pReceivePin, pmt);
 437
 438     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
 439
 440     if (pTransform->pFuncsTable->pfnSetMediaType)
 441         hr = pTransform->pFuncsTable->pfnSetMediaType(pTransform, PINDIR_INPUT, pmt);
 442
 443     if (SUCCEEDED(hr) && pTransform->pFuncsTable->pfnCompleteConnect)
 444         hr = pTransform->pFuncsTable->pfnCompleteConnect(pTransform, PINDIR_INPUT, pReceivePin);
 445
 446     if (SUCCEEDED(hr))
 447     {
 448         hr = BaseInputPinImpl_ReceiveConnection(iface, pReceivePin, pmt);
 449         if (FAILED(hr) && pTransform->pFuncsTable->pfnBreakConnect)
 450             pTransform->pFuncsTable->pfnBreakConnect(pTransform, PINDIR_INPUT);
 451     }
 452
 453     return hr;
 454 }
 455
 456 static HRESULT WINAPI TransformFilter_InputPin_Disconnect(IPin * iface)
 457 {
 458     BaseInputPin* This = (BaseInputPin*) iface;
 459     TransformFilter* pTransform;
 460
 461     TRACE("(%p)->()\n", iface);
 462
 463     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
 464     if (pTransform->pFuncsTable->pfnBreakConnect)
 465         pTransform->pFuncsTable->pfnBreakConnect(pTransform, PINDIR_INPUT);
 466
 467     return BasePinImpl_Disconnect(iface);
 468 }
 469
 470 static HRESULT WINAPI TransformFilter_InputPin_BeginFlush(IPin * iface)
 471 {
 472     BaseInputPin* This = (BaseInputPin*) iface;
 473     TransformFilter* pTransform;
 474     HRESULT hr = S_OK;
 475
 476     TRACE("(%p)->()\n", iface);
 477
 478     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
 479     EnterCriticalSection(&pTransform->filter.csFilter);
 480     if (pTransform->pFuncsTable->pfnBeginFlush)
 481         hr = pTransform->pFuncsTable->pfnBeginFlush(pTransform);
 482     if (SUCCEEDED(hr))
 483         hr = BaseInputPinImpl_BeginFlush(iface);
 484     LeaveCriticalSection(&pTransform->filter.csFilter);
 485     return hr;
 486 }
 487
 488 static HRESULT WINAPI TransformFilter_InputPin_EndFlush(IPin * iface)
 489 {
 490     BaseInputPin* This = (BaseInputPin*) iface;
 491     TransformFilter* pTransform;
 492     HRESULT hr = S_OK;
 493
 494     TRACE("(%p)->()\n", iface);
 495
 496     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
 497     EnterCriticalSection(&pTransform->filter.csFilter);
 498     if (pTransform->pFuncsTable->pfnEndFlush)
 499         hr = pTransform->pFuncsTable->pfnEndFlush(pTransform);
 500     if (SUCCEEDED(hr))
 501         hr = BaseInputPinImpl_EndFlush(iface);
 502     LeaveCriticalSection(&pTransform->filter.csFilter);
 503     return hr;
 504 }
 505
 506 static HRESULT WINAPI TransformFilter_InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
 507 {
 508     BaseInputPin* This = (BaseInputPin*) iface;
 509     TransformFilter* pTransform;
 510     HRESULT hr = S_OK;
 511
 512     TRACE("(%p)->()\n", iface);
 513
 514     pTransform = (TransformFilter*)This->pin.pinInfo.pFilter;
 515     EnterCriticalSection(&pTransform->filter.csFilter);
 516     if (pTransform->pFuncsTable->pfnNewSegment)
 517         hr = pTransform->pFuncsTable->pfnNewSegment(pTransform, tStart, tStop, dRate);
 518     if (SUCCEEDED(hr))
 519         hr = BaseInputPinImpl_NewSegment(iface, tStart, tStop, dRate);
 520     LeaveCriticalSection(&pTransform->filter.csFilter);
 521     return hr;
 522 }
 523
 524 static const IPinVtbl TransformFilter_InputPin_Vtbl =
 525 {
 526     BaseInputPinImpl_QueryInterface,
 527     BasePinImpl_AddRef,
 528     BaseInputPinImpl_Release,
 529     BaseInputPinImpl_Connect,
 530     TransformFilter_InputPin_ReceiveConnection,
 531     TransformFilter_InputPin_Disconnect,
 532     BasePinImpl_ConnectedTo,
 533     BasePinImpl_ConnectionMediaType,
 534     BasePinImpl_QueryPinInfo,
 535     BasePinImpl_QueryDirection,
 536     BasePinImpl_QueryId,
 537     BaseInputPinImpl_QueryAccept,
 538     BasePinImpl_EnumMediaTypes,
 539     BasePinImpl_QueryInternalConnections,
 540     TransformFilter_InputPin_EndOfStream,
 541     TransformFilter_InputPin_BeginFlush,
 542     TransformFilter_InputPin_EndFlush,
 543     TransformFilter_InputPin_NewSegment
 544 };
 545
 546 static const IPinVtbl TransformFilter_OutputPin_Vtbl =
 547 {
 548     BaseOutputPinImpl_QueryInterface,
 549     BasePinImpl_AddRef,
 550     BaseOutputPinImpl_Release,
 551     BaseOutputPinImpl_Connect,
 552     BaseOutputPinImpl_ReceiveConnection,
 553     BaseOutputPinImpl_Disconnect,
 554     BasePinImpl_ConnectedTo,
 555     BasePinImpl_ConnectionMediaType,
 556     BasePinImpl_QueryPinInfo,
 557     BasePinImpl_QueryDirection,
 558     BasePinImpl_QueryId,
 559     TransformFilter_Output_QueryAccept,
 560     BasePinImpl_EnumMediaTypes,
 561     BasePinImpl_QueryInternalConnections,
 562     BaseOutputPinImpl_EndOfStream,
 563     BaseOutputPinImpl_BeginFlush,
 564     BaseOutputPinImpl_EndFlush,
 565     BasePinImpl_NewSegment
 566 };
 567
 568 static HRESULT WINAPI TransformFilter_QualityControlImpl_Notify(IQualityControl *iface, IBaseFilter *sender, Quality qm) {
 569     QualityControlImpl *qc = (QualityControlImpl*)iface;
 570     TransformFilter *This = (TransformFilter *)qc->self;
 571
 572     if (This->pFuncsTable->pfnNotify)
 573         return This->pFuncsTable->pfnNotify(This, sender, qm);
 574     else
 575         return QualityControlImpl_Notify(iface, sender, qm);
 576 }
 577
 578 static const IQualityControlVtbl TransformFilter_QualityControl_Vtbl = {
 579     QualityControlImpl_QueryInterface,
 580     QualityControlImpl_AddRef,
 581     QualityControlImpl_Release,
 582     TransformFilter_QualityControlImpl_Notify,
 583     QualityControlImpl_SetSink
 584 };