reactos/lib/3rdparty/strmbase/transform.c

   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
  22 #include "strmbase_private.h"
  23
  24 static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
  25 static const WCHAR wcsOutputPinName[] = {'o','u','t','p','u','t',' ','p','i','n',0};
  26
  27 static const IBaseFilterVtbl TransformFilter_Vtbl;
  28 static const IPinVtbl TransformFilter_InputPin_Vtbl;
  29 static const IPinVtbl TransformFilter_OutputPin_Vtbl;
  30 static const IQualityControlVtbl TransformFilter_QualityControl_Vtbl;
  31
  32 static inline BaseInputPin *impl_BaseInputPin_from_BasePin( BasePin *iface )
  33 {
  34     return CONTAINING_RECORD(iface, BaseInputPin, pin);
  35 }
  36
  37 static inline BasePin *impl_BasePin_from_IPin( IPin *iface )
  38 {
  39     return CONTAINING_RECORD(iface, BasePin, IPin_iface);
  40 }
  41
  42 static inline BaseInputPin *impl_BaseInputPin_from_IPin( IPin *iface )
  43 {
  44     return CONTAINING_RECORD(iface, BaseInputPin, pin.IPin_iface);
  45 }
  46
  47 static inline BaseOutputPin *impl_BaseOutputPin_from_IPin( IPin *iface )
  48 {
  49     return CONTAINING_RECORD(iface, BaseOutputPin, pin.IPin_iface);
  50 }
  51
  52 static inline TransformFilter *impl_from_IBaseFilter( IBaseFilter *iface )
  53 {
  54     return CONTAINING_RECORD(iface, TransformFilter, filter.IBaseFilter_iface);
  55 }
  56
  57 static inline TransformFilter *impl_from_BaseFilter( BaseFilter *iface )
  58 {
  59     return CONTAINING_RECORD(iface, TransformFilter, filter);
  60 }
  61
  62 static HRESULT WINAPI TransformFilter_Input_CheckMediaType(BasePin *iface, const AM_MEDIA_TYPE * pmt)
  63 {
  64     BaseInputPin* This = impl_BaseInputPin_from_BasePin(iface);
  65     TransformFilter * pTransform;
  66
  67     TRACE("%p\n", iface);
  68     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
  69
  70     if (pTransform->pFuncsTable->pfnCheckInputType)
  71         return pTransform->pFuncsTable->pfnCheckInputType(pTransform, pmt);
  72     /* Assume OK if there's no query method (the connection will fail if
  73        needed) */
  74     return S_OK;
  75 }
  76
  77 static HRESULT WINAPI TransformFilter_Input_Receive(BaseInputPin *This, IMediaSample *pInSample)
  78 {
  79     HRESULT hr = S_FALSE;
  80     TransformFilter * pTransform;
  81     TRACE("%p\n", This);
  82     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
  83
  84     EnterCriticalSection(&pTransform->csReceive);
  85     if (pTransform->filter.state == State_Stopped)
  86     {
  87         LeaveCriticalSection(&pTransform->csReceive);
  88         return VFW_E_WRONG_STATE;
  89     }
  90
  91     if (This->end_of_stream || This->flushing)
  92     {
  93         LeaveCriticalSection(&pTransform->csReceive);
  94         return S_FALSE;
  95     }
  96
  97     LeaveCriticalSection(&pTransform->csReceive);
  98     if (pTransform->pFuncsTable->pfnReceive)
  99         hr = pTransform->pFuncsTable->pfnReceive(pTransform, pInSample);
 100     else
 101         hr = S_FALSE;
 102
 103     return hr;
 104 }
 105
 106 static HRESULT WINAPI TransformFilter_Output_QueryAccept(IPin *iface, const AM_MEDIA_TYPE * pmt)
 107 {
 108     BasePin *This = impl_BasePin_from_IPin(iface);
 109     TransformFilter *pTransformFilter = impl_from_IBaseFilter(This->pinInfo.pFilter);
 110     AM_MEDIA_TYPE* outpmt = &pTransformFilter->pmt;
 111     TRACE("%p\n", iface);
 112
 113     if (IsEqualIID(&pmt->majortype, &outpmt->majortype)
 114         && (IsEqualIID(&pmt->subtype, &outpmt->subtype) || IsEqualIID(&outpmt->subtype, &GUID_NULL)))
 115         return S_OK;
 116     return S_FALSE;
 117 }
 118
 119 static HRESULT WINAPI TransformFilter_Output_DecideBufferSize(BaseOutputPin *This, IMemAllocator *pAlloc, ALLOCATOR_PROPERTIES *ppropInputRequest)
 120 {
 121     TransformFilter *pTransformFilter = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 122     return pTransformFilter->pFuncsTable->pfnDecideBufferSize(pTransformFilter, pAlloc, ppropInputRequest);
 123 }
 124
 125 static HRESULT WINAPI TransformFilter_Output_GetMediaType(BasePin *This, int iPosition, AM_MEDIA_TYPE *pmt)
 126 {
 127     TransformFilter *pTransform = impl_from_IBaseFilter(This->pinInfo.pFilter);
 128
 129     if (iPosition < 0)
 130         return E_INVALIDARG;
 131     if (iPosition > 0)
 132         return VFW_S_NO_MORE_ITEMS;
 133     CopyMediaType(pmt, &pTransform->pmt);
 134     return S_OK;
 135 }
 136
 137 static IPin* WINAPI TransformFilter_GetPin(BaseFilter *iface, int pos)
 138 {
 139     TransformFilter *This = impl_from_BaseFilter(iface);
 140
 141     if (pos >= This->npins || pos < 0)
 142         return NULL;
 143
 144     IPin_AddRef(This->ppPins[pos]);
 145     return This->ppPins[pos];
 146 }
 147
 148 static LONG WINAPI TransformFilter_GetPinCount(BaseFilter *iface)
 149 {
 150     TransformFilter *This = impl_from_BaseFilter(iface);
 151
 152     return (This->npins+1);
 153 }
 154
 155 static const BaseFilterFuncTable tfBaseFuncTable = {
 156     TransformFilter_GetPin,
 157     TransformFilter_GetPinCount
 158 };
 159
 160 static const BaseInputPinFuncTable tf_input_BaseInputFuncTable = {
 161     {
 162         TransformFilter_Input_CheckMediaType,
 163         NULL,
 164         BasePinImpl_GetMediaTypeVersion,
 165         BasePinImpl_GetMediaType
 166     },
 167     TransformFilter_Input_Receive
 168 };
 169
 170 static const BaseOutputPinFuncTable tf_output_BaseOutputFuncTable = {
 171     {
 172         NULL,
 173         BaseOutputPinImpl_AttemptConnection,
 174         BasePinImpl_GetMediaTypeVersion,
 175         TransformFilter_Output_GetMediaType
 176     },
 177     TransformFilter_Output_DecideBufferSize,
 178     BaseOutputPinImpl_DecideAllocator,
 179     BaseOutputPinImpl_BreakConnect
 180 };
 181
 182 static HRESULT TransformFilter_Init(const IBaseFilterVtbl *pVtbl, const CLSID* pClsid, const TransformFilterFuncTable* pFuncsTable, TransformFilter* pTransformFilter)
 183 {
 184     HRESULT hr;
 185     PIN_INFO piInput;
 186     PIN_INFO piOutput;
 187
 188     BaseFilter_Init(&pTransformFilter->filter, pVtbl, pClsid, (DWORD_PTR)(__FILE__ ": TransformFilter.csFilter"), &tfBaseFuncTable);
 189
 190     InitializeCriticalSection(&pTransformFilter->csReceive);
 191     pTransformFilter->csReceive.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__": TransformFilter.csReceive");
 192
 193     /* pTransformFilter is already allocated */
 194     pTransformFilter->pFuncsTable = pFuncsTable;
 195     ZeroMemory(&pTransformFilter->pmt, sizeof(pTransformFilter->pmt));
 196     pTransformFilter->npins = 2;
 197
 198     pTransformFilter->ppPins = CoTaskMemAlloc(2 * sizeof(IPin *));
 199
 200     /* construct input pin */
 201     piInput.dir = PINDIR_INPUT;
 202     piInput.pFilter = &pTransformFilter->filter.IBaseFilter_iface;
 203     lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
 204     piOutput.dir = PINDIR_OUTPUT;
 205     piOutput.pFilter = &pTransformFilter->filter.IBaseFilter_iface;
 206     lstrcpynW(piOutput.achName, wcsOutputPinName, sizeof(piOutput.achName) / sizeof(piOutput.achName[0]));
 207
 208     hr = BaseInputPin_Construct(&TransformFilter_InputPin_Vtbl, sizeof(BaseInputPin), &piInput,
 209             &tf_input_BaseInputFuncTable, &pTransformFilter->filter.csFilter, NULL, &pTransformFilter->ppPins[0]);
 210
 211     if (SUCCEEDED(hr))
 212     {
 213         hr = BaseOutputPin_Construct(&TransformFilter_OutputPin_Vtbl, sizeof(BaseOutputPin), &piOutput, &tf_output_BaseOutputFuncTable, &pTransformFilter->filter.csFilter, &pTransformFilter->ppPins[1]);
 214
 215         if (FAILED(hr))
 216             ERR("Cannot create output pin (%x)\n", hr);
 217         else {
 218             QualityControlImpl_Create( pTransformFilter->ppPins[0], &pTransformFilter->filter.IBaseFilter_iface, &pTransformFilter->qcimpl);
 219             pTransformFilter->qcimpl->IQualityControl_iface.lpVtbl = &TransformFilter_QualityControl_Vtbl;
 220         }
 221     }
 222
 223     if (SUCCEEDED(hr))
 224     {
 225         ISeekingPassThru *passthru;
 226         pTransformFilter->seekthru_unk = NULL;
 227         hr = CoCreateInstance(&CLSID_SeekingPassThru, (IUnknown*)pTransformFilter, CLSCTX_INPROC_SERVER, &IID_IUnknown, (void**)&pTransformFilter->seekthru_unk);
 228         if (SUCCEEDED(hr))
 229         {
 230             IUnknown_QueryInterface(pTransformFilter->seekthru_unk, &IID_ISeekingPassThru, (void**)&passthru);
 231             ISeekingPassThru_Init(passthru, FALSE, pTransformFilter->ppPins[0]);
 232             ISeekingPassThru_Release(passthru);
 233         }
 234     }
 235
 236     if (FAILED(hr))
 237     {
 238         CoTaskMemFree(pTransformFilter->ppPins);
 239         BaseFilterImpl_Release(&pTransformFilter->filter.IBaseFilter_iface);
 240     }
 241
 242     return hr;
 243 }
 244
 245 HRESULT TransformFilter_Construct(const IBaseFilterVtbl *pVtbl, LONG filter_size, const CLSID* pClsid, const TransformFilterFuncTable* pFuncsTable, IBaseFilter ** ppTransformFilter)
 246 {
 247     TransformFilter* pTf;
 248
 249     *ppTransformFilter = NULL;
 250
 251     assert(filter_size >= sizeof(TransformFilter));
 252
 253     pTf = CoTaskMemAlloc(filter_size);
 254
 255     if (!pTf)
 256         return E_OUTOFMEMORY;
 257
 258     ZeroMemory(pTf, filter_size);
 259
 260     if (SUCCEEDED(TransformFilter_Init(pVtbl, pClsid, pFuncsTable, pTf)))
 261     {
 262         *ppTransformFilter = &pTf->filter.IBaseFilter_iface;
 263         return S_OK;
 264     }
 265
 266     CoTaskMemFree(pTf);
 267     return E_FAIL;
 268 }
 269
 270 HRESULT WINAPI TransformFilterImpl_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 271 {
 272     HRESULT hr;
 273     TransformFilter *This = impl_from_IBaseFilter(iface);
 274     TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppv);
 275
 276     if (IsEqualIID(riid, &IID_IQualityControl))  {
 277         *ppv = (IQualityControl*)This->qcimpl;
 278         IUnknown_AddRef((IUnknown*)*ppv);
 279         return S_OK;
 280     }
 281     else if (IsEqualIID(riid, &IID_IMediaSeeking) ||
 282              IsEqualIID(riid, &IID_IMediaPosition))
 283     {
 284         return IUnknown_QueryInterface(This->seekthru_unk, riid, ppv);
 285     }
 286     hr = BaseFilterImpl_QueryInterface(iface, riid, ppv);
 287
 288     if (FAILED(hr) && !IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow) &&
 289         !IsEqualIID(riid, &IID_IAMFilterMiscFlags))
 290         FIXME("No interface for %s!\n", debugstr_guid(riid));
 291
 292     return hr;
 293 }
 294
 295 ULONG WINAPI TransformFilterImpl_Release(IBaseFilter * iface)
 296 {
 297     TransformFilter *This = impl_from_IBaseFilter(iface);
 298     ULONG refCount = BaseFilterImpl_Release(iface);
 299
 300     TRACE("(%p/%p)->() Release from %d\n", This, iface, refCount + 1);
 301
 302     if (!refCount)
 303     {
 304         ULONG i;
 305
 306         for (i = 0; i < This->npins; i++)
 307         {
 308             IPin *pConnectedTo;
 309
 310             if (SUCCEEDED(IPin_ConnectedTo(This->ppPins[i], &pConnectedTo)))
 311             {
 312                 IPin_Disconnect(pConnectedTo);
 313                 IPin_Release(pConnectedTo);
 314             }
 315             IPin_Disconnect(This->ppPins[i]);
 316
 317             IPin_Release(This->ppPins[i]);
 318         }
 319
 320         CoTaskMemFree(This->ppPins);
 321
 322         TRACE("Destroying transform filter\n");
 323         This->csReceive.DebugInfo->Spare[0] = 0;
 324         DeleteCriticalSection(&This->csReceive);
 325         FreeMediaType(&This->pmt);
 326         QualityControlImpl_Destroy(This->qcimpl);
 327         IUnknown_Release(This->seekthru_unk);
 328         CoTaskMemFree(This);
 329
 330         return 0;
 331     }
 332     else
 333         return refCount;
 334 }
 335
 336 /** IMediaFilter methods **/
 337
 338 HRESULT WINAPI TransformFilterImpl_Stop(IBaseFilter * iface)
 339 {
 340     TransformFilter *This = impl_from_IBaseFilter(iface);
 341     HRESULT hr = S_OK;
 342
 343     TRACE("(%p/%p)\n", This, iface);
 344
 345     EnterCriticalSection(&This->csReceive);
 346     {
 347         This->filter.state = State_Stopped;
 348         if (This->pFuncsTable->pfnStopStreaming)
 349             hr = This->pFuncsTable->pfnStopStreaming(This);
 350     }
 351     LeaveCriticalSection(&This->csReceive);
 352
 353     return hr;
 354 }
 355
 356 HRESULT WINAPI TransformFilterImpl_Pause(IBaseFilter * iface)
 357 {
 358     TransformFilter *This = impl_from_IBaseFilter(iface);
 359     HRESULT hr;
 360
 361     TRACE("(%p/%p)->()\n", This, iface);
 362
 363     EnterCriticalSection(&This->csReceive);
 364     {
 365         if (This->filter.state == State_Stopped)
 366             hr = IBaseFilter_Run(iface, -1);
 367         else
 368             hr = S_OK;
 369
 370         if (SUCCEEDED(hr))
 371             This->filter.state = State_Paused;
 372     }
 373     LeaveCriticalSection(&This->csReceive);
 374
 375     return hr;
 376 }
 377
 378 HRESULT WINAPI TransformFilterImpl_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 379 {
 380     HRESULT hr = S_OK;
 381     TransformFilter *This = impl_from_IBaseFilter(iface);
 382
 383     TRACE("(%p/%p)->(%s)\n", This, iface, wine_dbgstr_longlong(tStart));
 384
 385     EnterCriticalSection(&This->csReceive);
 386     {
 387         if (This->filter.state == State_Stopped)
 388         {
 389             impl_BaseInputPin_from_IPin(This->ppPins[0])->end_of_stream = FALSE;
 390             if (This->pFuncsTable->pfnStartStreaming)
 391                 hr = This->pFuncsTable->pfnStartStreaming(This);
 392             if (SUCCEEDED(hr))
 393                 hr = BaseOutputPinImpl_Active(impl_BaseOutputPin_from_IPin(This->ppPins[1]));
 394         }
 395
 396         if (SUCCEEDED(hr))
 397         {
 398             This->filter.rtStreamStart = tStart;
 399             This->filter.state = State_Running;
 400         }
 401     }
 402     LeaveCriticalSection(&This->csReceive);
 403
 404     return hr;
 405 }
 406
 407 HRESULT WINAPI TransformFilterImpl_Notify(TransformFilter *iface, IBaseFilter *sender, Quality qm)
 408 {
 409     return QualityControlImpl_Notify((IQualityControl*)iface->qcimpl, sender, qm);
 410 }
 411
 412 /** IBaseFilter implementation **/
 413
 414 HRESULT WINAPI TransformFilterImpl_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 415 {
 416     TransformFilter *This = impl_from_IBaseFilter(iface);
 417
 418     TRACE("(%p/%p)->(%s,%p)\n", This, iface, debugstr_w(Id), ppPin);
 419
 420     return E_NOTIMPL;
 421 }
 422
 423 static const IBaseFilterVtbl TransformFilter_Vtbl =
 424 {
 425     TransformFilterImpl_QueryInterface,
 426     BaseFilterImpl_AddRef,
 427     TransformFilterImpl_Release,
 428     BaseFilterImpl_GetClassID,
 429     TransformFilterImpl_Stop,
 430     TransformFilterImpl_Pause,
 431     TransformFilterImpl_Run,
 432     BaseFilterImpl_GetState,
 433     BaseFilterImpl_SetSyncSource,
 434     BaseFilterImpl_GetSyncSource,
 435     BaseFilterImpl_EnumPins,
 436     TransformFilterImpl_FindPin,
 437     BaseFilterImpl_QueryFilterInfo,
 438     BaseFilterImpl_JoinFilterGraph,
 439     BaseFilterImpl_QueryVendorInfo
 440 };
 441
 442 static HRESULT WINAPI TransformFilter_InputPin_EndOfStream(IPin * iface)
 443 {
 444     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 445     TransformFilter* pTransform;
 446     IPin* ppin;
 447     HRESULT hr;
 448
 449     TRACE("(%p)->()\n", iface);
 450
 451     /* Since we process samples synchronously, just forward notification downstream */
 452     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 453     if (!pTransform)
 454         hr = E_FAIL;
 455     else
 456         hr = IPin_ConnectedTo(pTransform->ppPins[1], &ppin);
 457     if (SUCCEEDED(hr))
 458     {
 459         hr = IPin_EndOfStream(ppin);
 460         IPin_Release(ppin);
 461     }
 462
 463     if (FAILED(hr))
 464         ERR("%x\n", hr);
 465     return hr;
 466 }
 467
 468 static HRESULT WINAPI TransformFilter_InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 469 {
 470     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 471     TransformFilter* pTransform;
 472     HRESULT hr = S_OK;
 473
 474     TRACE("(%p)->(%p, %p)\n", iface, pReceivePin, pmt);
 475
 476     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 477
 478     if (pTransform->pFuncsTable->pfnSetMediaType)
 479         hr = pTransform->pFuncsTable->pfnSetMediaType(pTransform, PINDIR_INPUT, pmt);
 480
 481     if (SUCCEEDED(hr) && pTransform->pFuncsTable->pfnCompleteConnect)
 482         hr = pTransform->pFuncsTable->pfnCompleteConnect(pTransform, PINDIR_INPUT, pReceivePin);
 483
 484     if (SUCCEEDED(hr))
 485     {
 486         hr = BaseInputPinImpl_ReceiveConnection(iface, pReceivePin, pmt);
 487         if (FAILED(hr) && pTransform->pFuncsTable->pfnBreakConnect)
 488             pTransform->pFuncsTable->pfnBreakConnect(pTransform, PINDIR_INPUT);
 489     }
 490
 491     return hr;
 492 }
 493
 494 static HRESULT WINAPI TransformFilter_InputPin_Disconnect(IPin * iface)
 495 {
 496     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 497     TransformFilter* pTransform;
 498
 499     TRACE("(%p)->()\n", iface);
 500
 501     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 502     if (pTransform->pFuncsTable->pfnBreakConnect)
 503         pTransform->pFuncsTable->pfnBreakConnect(pTransform, PINDIR_INPUT);
 504
 505     return BasePinImpl_Disconnect(iface);
 506 }
 507
 508 static HRESULT WINAPI TransformFilter_InputPin_BeginFlush(IPin * iface)
 509 {
 510     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 511     TransformFilter* pTransform;
 512     HRESULT hr = S_OK;
 513
 514     TRACE("(%p)->()\n", iface);
 515
 516     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 517     EnterCriticalSection(&pTransform->filter.csFilter);
 518     if (pTransform->pFuncsTable->pfnBeginFlush)
 519         hr = pTransform->pFuncsTable->pfnBeginFlush(pTransform);
 520     if (SUCCEEDED(hr))
 521         hr = BaseInputPinImpl_BeginFlush(iface);
 522     LeaveCriticalSection(&pTransform->filter.csFilter);
 523     return hr;
 524 }
 525
 526 static HRESULT WINAPI TransformFilter_InputPin_EndFlush(IPin * iface)
 527 {
 528     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 529     TransformFilter* pTransform;
 530     HRESULT hr = S_OK;
 531
 532     TRACE("(%p)->()\n", iface);
 533
 534     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 535     EnterCriticalSection(&pTransform->filter.csFilter);
 536     if (pTransform->pFuncsTable->pfnEndFlush)
 537         hr = pTransform->pFuncsTable->pfnEndFlush(pTransform);
 538     if (SUCCEEDED(hr))
 539         hr = BaseInputPinImpl_EndFlush(iface);
 540     LeaveCriticalSection(&pTransform->filter.csFilter);
 541     return hr;
 542 }
 543
 544 static HRESULT WINAPI TransformFilter_InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
 545 {
 546     BaseInputPin* This = impl_BaseInputPin_from_IPin(iface);
 547     TransformFilter* pTransform;
 548     HRESULT hr = S_OK;
 549
 550     TRACE("(%p)->()\n", iface);
 551
 552     pTransform = impl_from_IBaseFilter(This->pin.pinInfo.pFilter);
 553     EnterCriticalSection(&pTransform->filter.csFilter);
 554     if (pTransform->pFuncsTable->pfnNewSegment)
 555         hr = pTransform->pFuncsTable->pfnNewSegment(pTransform, tStart, tStop, dRate);
 556     if (SUCCEEDED(hr))
 557         hr = BaseInputPinImpl_NewSegment(iface, tStart, tStop, dRate);
 558     LeaveCriticalSection(&pTransform->filter.csFilter);
 559     return hr;
 560 }
 561
 562 static const IPinVtbl TransformFilter_InputPin_Vtbl =
 563 {
 564     BaseInputPinImpl_QueryInterface,
 565     BasePinImpl_AddRef,
 566     BaseInputPinImpl_Release,
 567     BaseInputPinImpl_Connect,
 568     TransformFilter_InputPin_ReceiveConnection,
 569     TransformFilter_InputPin_Disconnect,
 570     BasePinImpl_ConnectedTo,
 571     BasePinImpl_ConnectionMediaType,
 572     BasePinImpl_QueryPinInfo,
 573     BasePinImpl_QueryDirection,
 574     BasePinImpl_QueryId,
 575     BaseInputPinImpl_QueryAccept,
 576     BasePinImpl_EnumMediaTypes,
 577     BasePinImpl_QueryInternalConnections,
 578     TransformFilter_InputPin_EndOfStream,
 579     TransformFilter_InputPin_BeginFlush,
 580     TransformFilter_InputPin_EndFlush,
 581     TransformFilter_InputPin_NewSegment
 582 };
 583
 584 static const IPinVtbl TransformFilter_OutputPin_Vtbl =
 585 {
 586     BaseOutputPinImpl_QueryInterface,
 587     BasePinImpl_AddRef,
 588     BaseOutputPinImpl_Release,
 589     BaseOutputPinImpl_Connect,
 590     BaseOutputPinImpl_ReceiveConnection,
 591     BaseOutputPinImpl_Disconnect,
 592     BasePinImpl_ConnectedTo,
 593     BasePinImpl_ConnectionMediaType,
 594     BasePinImpl_QueryPinInfo,
 595     BasePinImpl_QueryDirection,
 596     BasePinImpl_QueryId,
 597     TransformFilter_Output_QueryAccept,
 598     BasePinImpl_EnumMediaTypes,
 599     BasePinImpl_QueryInternalConnections,
 600     BaseOutputPinImpl_EndOfStream,
 601     BaseOutputPinImpl_BeginFlush,
 602     BaseOutputPinImpl_EndFlush,
 603     BasePinImpl_NewSegment
 604 };
 605
 606 static HRESULT WINAPI TransformFilter_QualityControlImpl_Notify(IQualityControl *iface, IBaseFilter *sender, Quality qm) {
 607     QualityControlImpl *qc = (QualityControlImpl*)iface;
 608     TransformFilter *This = impl_from_IBaseFilter(qc->self);
 609
 610     if (This->pFuncsTable->pfnNotify)
 611         return This->pFuncsTable->pfnNotify(This, sender, qm);
 612     else
 613         return TransformFilterImpl_Notify(This, sender, qm);
 614 }
 615
 616 static const IQualityControlVtbl TransformFilter_QualityControl_Vtbl = {
 617     QualityControlImpl_QueryInterface,
 618     QualityControlImpl_AddRef,
 619     QualityControlImpl_Release,
 620     TransformFilter_QualityControlImpl_Notify,
 621     QualityControlImpl_SetSink
 622 };