dlls/quartz/pin.c

   1 /*
   2  * Generic Implementation of IPin Interface
   3  *
   4  * Copyright 2003 Robert Shearman
   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 "quartz_private.h"
  22 #include "pin.h"
  23
  24 #include "wine/debug.h"
  25 #include "wine/unicode.h"
  26 #include "uuids.h"
  27 #include "vfwmsgs.h"
  28 #include <assert.h>
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  31
  32 static const IPinVtbl InputPin_Vtbl;
  33 static const IPinVtbl OutputPin_Vtbl;
  34 static const IMemInputPinVtbl MemInputPin_Vtbl;
  35 static const IPinVtbl PullPin_Vtbl;
  36
  37 #define ALIGNDOWN(value,boundary) ((value) & ~(boundary-1))
  38 #define ALIGNUP(value,boundary) (ALIGNDOWN(value - 1, boundary) + boundary)
  39
  40 static inline InputPin *impl_from_IMemInputPin( IMemInputPin *iface )
  41 {
  42     return (InputPin *)((char*)iface - FIELD_OFFSET(InputPin, lpVtblMemInput));
  43 }
  44
  45
  46 static void Copy_PinInfo(PIN_INFO * pDest, const PIN_INFO * pSrc)
  47 {
  48     /* Tempting to just do a memcpy, but the name field is
  49        128 characters long! We will probably never exceed 10
  50        most of the time, so we are better off copying
  51        each field manually */
  52     strcpyW(pDest->achName, pSrc->achName);
  53     pDest->dir = pSrc->dir;
  54     pDest->pFilter = pSrc->pFilter;
  55 }
  56
  57 /* Function called as a helper to IPin_Connect */
  58 /* specific AM_MEDIA_TYPE - it cannot be NULL */
  59 /* NOTE: not part of standard interface */
  60 static HRESULT OutputPin_ConnectSpecific(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
  61 {
  62     OutputPin *This = (OutputPin *)iface;
  63     HRESULT hr;
  64     IMemAllocator * pMemAlloc = NULL;
  65     ALLOCATOR_PROPERTIES actual; /* FIXME: should we put the actual props back in to This? */
  66
  67     TRACE("(%p, %p)\n", pReceivePin, pmt);
  68     dump_AM_MEDIA_TYPE(pmt);
  69
  70     /* FIXME: call queryacceptproc */
  71
  72     This->pin.pConnectedTo = pReceivePin;
  73     IPin_AddRef(pReceivePin);
  74     CopyMediaType(&This->pin.mtCurrent, pmt);
  75
  76     hr = IPin_ReceiveConnection(pReceivePin, iface, pmt);
  77
  78     /* get the IMemInputPin interface we will use to deliver samples to the
  79      * connected pin */
  80     if (SUCCEEDED(hr))
  81     {
  82         hr = IPin_QueryInterface(pReceivePin, &IID_IMemInputPin, (LPVOID)&This->pMemInputPin);
  83
  84         if (SUCCEEDED(hr))
  85             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pMemAlloc);
  86
  87         if (hr == VFW_E_NO_ALLOCATOR)
  88         {
  89             /* Input pin provides no allocator, use standard memory allocator */
  90             hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC_SERVER, &IID_IMemAllocator, (LPVOID*)&pMemAlloc);
  91
  92             if (SUCCEEDED(hr))
  93             {
  94                 hr = IMemInputPin_NotifyAllocator(This->pMemInputPin, pMemAlloc, FALSE);
  95             }
  96         }
  97
  98         if (SUCCEEDED(hr))
  99             hr = IMemAllocator_SetProperties(pMemAlloc, &This->allocProps, &actual);
 100
 101         if (pMemAlloc)
 102             IMemAllocator_Release(pMemAlloc);
 103
 104         /* break connection if we couldn't get the allocator */
 105         if (FAILED(hr))
 106             IPin_Disconnect(pReceivePin);
 107     }
 108
 109     if (FAILED(hr))
 110     {
 111         IPin_Release(This->pin.pConnectedTo);
 112         This->pin.pConnectedTo = NULL;
 113         FreeMediaType(&This->pin.mtCurrent);
 114     }
 115
 116     TRACE(" -- %x\n", hr);
 117     return hr;
 118 }
 119
 120 HRESULT InputPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
 121 {
 122     InputPin * pPinImpl;
 123
 124     *ppPin = NULL;
 125
 126     if (pPinInfo->dir != PINDIR_INPUT)
 127     {
 128         ERR("Pin direction(%x) != PINDIR_INPUT\n", pPinInfo->dir);
 129         return E_INVALIDARG;
 130     }
 131
 132     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
 133
 134     if (!pPinImpl)
 135         return E_OUTOFMEMORY;
 136
 137     if (SUCCEEDED(InputPin_Init(pPinInfo, pSampleProc, pUserData, pQueryAccept, pCritSec, pPinImpl)))
 138     {
 139         pPinImpl->pin.lpVtbl = &InputPin_Vtbl;
 140         pPinImpl->lpVtblMemInput = &MemInputPin_Vtbl;
 141
 142         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
 143         return S_OK;
 144     }
 145     return E_FAIL;
 146 }
 147
 148 /* Note that we don't init the vtables here (like C++ constructor) */
 149 HRESULT InputPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, InputPin * pPinImpl)
 150 {
 151     TRACE("\n");
 152
 153     /* Common attributes */
 154     pPinImpl->pin.refCount = 1;
 155     pPinImpl->pin.pConnectedTo = NULL;
 156     pPinImpl->pin.fnQueryAccept = pQueryAccept;
 157     pPinImpl->pin.pUserData = pUserData;
 158     pPinImpl->pin.pCritSec = pCritSec;
 159     Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
 160     ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
 161
 162     /* Input pin attributes */
 163     pPinImpl->fnSampleProc = pSampleProc;
 164     pPinImpl->pAllocator = NULL;
 165     pPinImpl->tStart = 0;
 166     pPinImpl->tStop = 0;
 167     pPinImpl->dRate = 0;
 168
 169     return S_OK;
 170 }
 171
 172 HRESULT OutputPin_Init(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES * props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, OutputPin * pPinImpl)
 173 {
 174     TRACE("\n");
 175
 176     /* Common attributes */
 177     pPinImpl->pin.lpVtbl = &OutputPin_Vtbl;
 178     pPinImpl->pin.refCount = 1;
 179     pPinImpl->pin.pConnectedTo = NULL;
 180     pPinImpl->pin.fnQueryAccept = pQueryAccept;
 181     pPinImpl->pin.pUserData = pUserData;
 182     pPinImpl->pin.pCritSec = pCritSec;
 183     Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
 184     ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
 185
 186     /* Output pin attributes */
 187     pPinImpl->pMemInputPin = NULL;
 188     pPinImpl->pConnectSpecific = OutputPin_ConnectSpecific;
 189     if (props)
 190     {
 191         memcpy(&pPinImpl->allocProps, props, sizeof(pPinImpl->allocProps));
 192         if (pPinImpl->allocProps.cbAlign == 0)
 193             pPinImpl->allocProps.cbAlign = 1;
 194     }
 195     else
 196         ZeroMemory(&pPinImpl->allocProps, sizeof(pPinImpl->allocProps));
 197
 198     return S_OK;
 199 }
 200
 201 HRESULT OutputPin_Construct(const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
 202 {
 203     OutputPin * pPinImpl;
 204
 205     *ppPin = NULL;
 206
 207     if (pPinInfo->dir != PINDIR_OUTPUT)
 208     {
 209         ERR("Pin direction(%x) != PINDIR_OUTPUT\n", pPinInfo->dir);
 210         return E_INVALIDARG;
 211     }
 212
 213     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
 214
 215     if (!pPinImpl)
 216         return E_OUTOFMEMORY;
 217
 218     if (SUCCEEDED(OutputPin_Init(pPinInfo, props, pUserData, pQueryAccept, pCritSec, pPinImpl)))
 219     {
 220         pPinImpl->pin.lpVtbl = &OutputPin_Vtbl;
 221
 222         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
 223         return S_OK;
 224     }
 225     return E_FAIL;
 226 }
 227
 228 /*** Common pin functions ***/
 229
 230 ULONG WINAPI IPinImpl_AddRef(IPin * iface)
 231 {
 232     IPinImpl *This = (IPinImpl *)iface;
 233     ULONG refCount = InterlockedIncrement(&This->refCount);
 234
 235     TRACE("(%p)->() AddRef from %d\n", iface, refCount - 1);
 236
 237     return refCount;
 238 }
 239
 240 HRESULT WINAPI IPinImpl_Disconnect(IPin * iface)
 241 {
 242     HRESULT hr;
 243     IPinImpl *This = (IPinImpl *)iface;
 244
 245     TRACE("()\n");
 246
 247     EnterCriticalSection(This->pCritSec);
 248     {
 249         if (This->pConnectedTo)
 250         {
 251             IPin_Release(This->pConnectedTo);
 252             This->pConnectedTo = NULL;
 253             hr = S_OK;
 254         }
 255         else
 256             hr = S_FALSE;
 257     }
 258     LeaveCriticalSection(This->pCritSec);
 259
 260     return hr;
 261 }
 262
 263 HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin)
 264 {
 265     HRESULT hr;
 266     IPinImpl *This = (IPinImpl *)iface;
 267
 268 /*  TRACE("(%p)\n", ppPin);*/
 269
 270     EnterCriticalSection(This->pCritSec);
 271     {
 272         if (This->pConnectedTo)
 273         {
 274             *ppPin = This->pConnectedTo;
 275             IPin_AddRef(*ppPin);
 276             hr = S_OK;
 277         }
 278         else
 279             hr = VFW_E_NOT_CONNECTED;
 280     }
 281     LeaveCriticalSection(This->pCritSec);
 282
 283     return hr;
 284 }
 285
 286 HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt)
 287 {
 288     HRESULT hr;
 289     IPinImpl *This = (IPinImpl *)iface;
 290
 291     TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
 292
 293     EnterCriticalSection(This->pCritSec);
 294     {
 295         if (This->pConnectedTo)
 296         {
 297             CopyMediaType(pmt, &This->mtCurrent);
 298             hr = S_OK;
 299         }
 300         else
 301         {
 302             ZeroMemory(pmt, sizeof(*pmt));
 303             hr = VFW_E_NOT_CONNECTED;
 304         }
 305     }
 306     LeaveCriticalSection(This->pCritSec);
 307
 308     return hr;
 309 }
 310
 311 HRESULT WINAPI IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo)
 312 {
 313     IPinImpl *This = (IPinImpl *)iface;
 314
 315     TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
 316
 317     Copy_PinInfo(pInfo, &This->pinInfo);
 318     IBaseFilter_AddRef(pInfo->pFilter);
 319
 320     return S_OK;
 321 }
 322
 323 HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir)
 324 {
 325     IPinImpl *This = (IPinImpl *)iface;
 326
 327     TRACE("(%p/%p)->(%p)\n", This, iface, pPinDir);
 328
 329     *pPinDir = This->pinInfo.dir;
 330
 331     return S_OK;
 332 }
 333
 334 HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id)
 335 {
 336     IPinImpl *This = (IPinImpl *)iface;
 337
 338     TRACE("(%p/%p)->(%p)\n", This, iface, Id);
 339
 340     *Id = CoTaskMemAlloc((strlenW(This->pinInfo.achName) + 1) * sizeof(WCHAR));
 341     if (!*Id)
 342         return E_OUTOFMEMORY;
 343
 344     strcpyW(*Id, This->pinInfo.achName);
 345
 346     return S_OK;
 347 }
 348
 349 HRESULT WINAPI IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt)
 350 {
 351     IPinImpl *This = (IPinImpl *)iface;
 352
 353     TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
 354
 355     return (This->fnQueryAccept(This->pUserData, pmt) == S_OK ? S_OK : S_FALSE);
 356 }
 357
 358 HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
 359 {
 360     IPinImpl *This = (IPinImpl *)iface;
 361     ENUMMEDIADETAILS emd;
 362
 363     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 364
 365     /* override this method to allow enumeration of your types */
 366     emd.cMediaTypes = 0;
 367     emd.pMediaTypes = NULL;
 368
 369     return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
 370 }
 371
 372 HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin)
 373 {
 374     IPinImpl *This = (IPinImpl *)iface;
 375
 376     TRACE("(%p/%p)->(%p, %p)\n", This, iface, apPin, cPin);
 377
 378     return E_NOTIMPL; /* to tell caller that all input pins connected to all output pins */
 379 }
 380
 381 /*** IPin implementation for an input pin ***/
 382
 383 HRESULT WINAPI InputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 384 {
 385     InputPin *This = (InputPin *)iface;
 386
 387     TRACE("(%p)->(%s, %p)\n", iface, qzdebugstr_guid(riid), ppv);
 388
 389     *ppv = NULL;
 390
 391     if (IsEqualIID(riid, &IID_IUnknown))
 392         *ppv = (LPVOID)iface;
 393     else if (IsEqualIID(riid, &IID_IPin))
 394         *ppv = (LPVOID)iface;
 395     else if (IsEqualIID(riid, &IID_IMemInputPin))
 396         *ppv = (LPVOID)&This->lpVtblMemInput;
 397
 398     if (*ppv)
 399     {
 400         IUnknown_AddRef((IUnknown *)(*ppv));
 401         return S_OK;
 402     }
 403
 404     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 405
 406     return E_NOINTERFACE;
 407 }
 408
 409 ULONG WINAPI InputPin_Release(IPin * iface)
 410 {
 411     InputPin *This = (InputPin *)iface;
 412     ULONG refCount = InterlockedDecrement(&This->pin.refCount);
 413
 414     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 415
 416     if (!refCount)
 417     {
 418         FreeMediaType(&This->pin.mtCurrent);
 419         if (This->pAllocator)
 420             IMemAllocator_Release(This->pAllocator);
 421         CoTaskMemFree(This);
 422         return 0;
 423     }
 424     else
 425         return refCount;
 426 }
 427
 428 HRESULT WINAPI InputPin_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt)
 429 {
 430     ERR("Outgoing connection on an input pin! (%p, %p)\n", pConnector, pmt);
 431
 432     return E_UNEXPECTED;
 433 }
 434
 435
 436 HRESULT WINAPI InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 437 {
 438     InputPin *This = (InputPin *)iface;
 439     PIN_DIRECTION pindirReceive;
 440     HRESULT hr = S_OK;
 441
 442     TRACE("(%p, %p)\n", pReceivePin, pmt);
 443     dump_AM_MEDIA_TYPE(pmt);
 444
 445     EnterCriticalSection(This->pin.pCritSec);
 446     {
 447         if (This->pin.pConnectedTo)
 448             hr = VFW_E_ALREADY_CONNECTED;
 449
 450         if (SUCCEEDED(hr) && This->pin.fnQueryAccept(This->pin.pUserData, pmt) != S_OK)
 451             hr = VFW_E_TYPE_NOT_ACCEPTED; /* FIXME: shouldn't we just map common errors onto
 452                                            * VFW_E_TYPE_NOT_ACCEPTED and pass the value on otherwise? */
 453
 454         if (SUCCEEDED(hr))
 455         {
 456             IPin_QueryDirection(pReceivePin, &pindirReceive);
 457
 458             if (pindirReceive != PINDIR_OUTPUT)
 459             {
 460                 ERR("Can't connect from non-output pin\n");
 461                 hr = VFW_E_INVALID_DIRECTION;
 462             }
 463         }
 464
 465         if (SUCCEEDED(hr))
 466         {
 467             CopyMediaType(&This->pin.mtCurrent, pmt);
 468             This->pin.pConnectedTo = pReceivePin;
 469             IPin_AddRef(pReceivePin);
 470         }
 471     }
 472     LeaveCriticalSection(This->pin.pCritSec);
 473
 474     return hr;
 475 }
 476
 477 HRESULT WINAPI InputPin_EndOfStream(IPin * iface)
 478 {
 479     TRACE("()\n");
 480
 481     return S_OK;
 482 }
 483
 484 HRESULT WINAPI InputPin_BeginFlush(IPin * iface)
 485 {
 486     FIXME("()\n");
 487     return E_NOTIMPL;
 488 }
 489
 490 HRESULT WINAPI InputPin_EndFlush(IPin * iface)
 491 {
 492     FIXME("()\n");
 493     return E_NOTIMPL;
 494 }
 495
 496 HRESULT WINAPI InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
 497 {
 498     InputPin *This = (InputPin *)iface;
 499
 500     TRACE("(%x%08x, %x%08x, %e)\n", (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
 501
 502     This->tStart = tStart;
 503     This->tStop = tStop;
 504     This->dRate = dRate;
 505
 506     return S_OK;
 507 }
 508
 509 static const IPinVtbl InputPin_Vtbl =
 510 {
 511     InputPin_QueryInterface,
 512     IPinImpl_AddRef,
 513     InputPin_Release,
 514     InputPin_Connect,
 515     InputPin_ReceiveConnection,
 516     IPinImpl_Disconnect,
 517     IPinImpl_ConnectedTo,
 518     IPinImpl_ConnectionMediaType,
 519     IPinImpl_QueryPinInfo,
 520     IPinImpl_QueryDirection,
 521     IPinImpl_QueryId,
 522     IPinImpl_QueryAccept,
 523     IPinImpl_EnumMediaTypes,
 524     IPinImpl_QueryInternalConnections,
 525     InputPin_EndOfStream,
 526     InputPin_BeginFlush,
 527     InputPin_EndFlush,
 528     InputPin_NewSegment
 529 };
 530
 531 /*** IMemInputPin implementation ***/
 532
 533 HRESULT WINAPI MemInputPin_QueryInterface(IMemInputPin * iface, REFIID riid, LPVOID * ppv)
 534 {
 535     InputPin *This = impl_from_IMemInputPin(iface);
 536
 537     return IPin_QueryInterface((IPin *)&This->pin, riid, ppv);
 538 }
 539
 540 ULONG WINAPI MemInputPin_AddRef(IMemInputPin * iface)
 541 {
 542     InputPin *This = impl_from_IMemInputPin(iface);
 543
 544     return IPin_AddRef((IPin *)&This->pin);
 545 }
 546
 547 ULONG WINAPI MemInputPin_Release(IMemInputPin * iface)
 548 {
 549     InputPin *This = impl_from_IMemInputPin(iface);
 550
 551     return IPin_Release((IPin *)&This->pin);
 552 }
 553
 554 HRESULT WINAPI MemInputPin_GetAllocator(IMemInputPin * iface, IMemAllocator ** ppAllocator)
 555 {
 556     InputPin *This = impl_from_IMemInputPin(iface);
 557
 558     TRACE("(%p/%p)->(%p)\n", This, iface, ppAllocator);
 559
 560     *ppAllocator = This->pAllocator;
 561     if (*ppAllocator)
 562         IMemAllocator_AddRef(*ppAllocator);
 563
 564     return *ppAllocator ? S_OK : VFW_E_NO_ALLOCATOR;
 565 }
 566
 567 HRESULT WINAPI MemInputPin_NotifyAllocator(IMemInputPin * iface, IMemAllocator * pAllocator, BOOL bReadOnly)
 568 {
 569     InputPin *This = impl_from_IMemInputPin(iface);
 570
 571     TRACE("(%p/%p)->(%p, %d)\n", This, iface, pAllocator, bReadOnly);
 572
 573     if (This->pAllocator)
 574         IMemAllocator_Release(This->pAllocator);
 575     This->pAllocator = pAllocator;
 576     if (This->pAllocator)
 577         IMemAllocator_AddRef(This->pAllocator);
 578
 579     return S_OK;
 580 }
 581
 582 HRESULT WINAPI MemInputPin_GetAllocatorRequirements(IMemInputPin * iface, ALLOCATOR_PROPERTIES * pProps)
 583 {
 584     InputPin *This = impl_from_IMemInputPin(iface);
 585
 586     TRACE("(%p/%p)->(%p)\n", This, iface, pProps);
 587
 588     /* override this method if you have any specific requirements */
 589
 590     return E_NOTIMPL;
 591 }
 592
 593 HRESULT WINAPI MemInputPin_Receive(IMemInputPin * iface, IMediaSample * pSample)
 594 {
 595     InputPin *This = impl_from_IMemInputPin(iface);
 596
 597     /* this trace commented out for performance reasons */
 598     /*TRACE("(%p/%p)->(%p)\n", This, iface, pSample);*/
 599
 600     return This->fnSampleProc(This->pin.pUserData, pSample);
 601 }
 602
 603 HRESULT WINAPI MemInputPin_ReceiveMultiple(IMemInputPin * iface, IMediaSample ** pSamples, long nSamples, long *nSamplesProcessed)
 604 {
 605     HRESULT hr = S_OK;
 606     InputPin *This = impl_from_IMemInputPin(iface);
 607
 608     TRACE("(%p/%p)->(%p, %ld, %p)\n", This, iface, pSamples, nSamples, nSamplesProcessed);
 609
 610     for (*nSamplesProcessed = 0; *nSamplesProcessed < nSamples; (*nSamplesProcessed)++)
 611     {
 612         hr = IMemInputPin_Receive(iface, pSamples[*nSamplesProcessed]);
 613         if (hr != S_OK)
 614             break;
 615     }
 616
 617     return hr;
 618 }
 619
 620 HRESULT WINAPI MemInputPin_ReceiveCanBlock(IMemInputPin * iface)
 621 {
 622     InputPin *This = impl_from_IMemInputPin(iface);
 623
 624     FIXME("(%p/%p)->()\n", This, iface);
 625
 626     /* FIXME: we should check whether any output pins will block */
 627
 628     return S_OK;
 629 }
 630
 631 static const IMemInputPinVtbl MemInputPin_Vtbl =
 632 {
 633     MemInputPin_QueryInterface,
 634     MemInputPin_AddRef,
 635     MemInputPin_Release,
 636     MemInputPin_GetAllocator,
 637     MemInputPin_NotifyAllocator,
 638     MemInputPin_GetAllocatorRequirements,
 639     MemInputPin_Receive,
 640     MemInputPin_ReceiveMultiple,
 641     MemInputPin_ReceiveCanBlock
 642 };
 643
 644 HRESULT WINAPI OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 645 {
 646     OutputPin *This = (OutputPin *)iface;
 647
 648     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
 649
 650     *ppv = NULL;
 651
 652     if (IsEqualIID(riid, &IID_IUnknown))
 653         *ppv = (LPVOID)iface;
 654     else if (IsEqualIID(riid, &IID_IPin))
 655         *ppv = (LPVOID)iface;
 656
 657     if (*ppv)
 658     {
 659         IUnknown_AddRef((IUnknown *)(*ppv));
 660         return S_OK;
 661     }
 662
 663     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 664
 665     return E_NOINTERFACE;
 666 }
 667
 668 ULONG WINAPI OutputPin_Release(IPin * iface)
 669 {
 670     OutputPin *This = (OutputPin *)iface;
 671     ULONG refCount = InterlockedDecrement(&This->pin.refCount);
 672
 673     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 674
 675     if (!refCount)
 676     {
 677         FreeMediaType(&This->pin.mtCurrent);
 678         CoTaskMemFree(This);
 679         return 0;
 680     }
 681     return refCount;
 682 }
 683
 684 HRESULT WINAPI OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 685 {
 686     HRESULT hr;
 687     OutputPin *This = (OutputPin *)iface;
 688
 689     TRACE("(%p/%p)->(%p, %p)\n", This, iface, pReceivePin, pmt);
 690     dump_AM_MEDIA_TYPE(pmt);
 691
 692     /* If we try to connect to ourself, we will definitely deadlock.
 693      * There are other cases where we could deadlock too, but this
 694      * catches the obvious case */
 695     assert(pReceivePin != iface);
 696
 697     EnterCriticalSection(This->pin.pCritSec);
 698     {
 699         /* if we have been a specific type to connect with, then we can either connect
 700          * with that or fail. We cannot choose different AM_MEDIA_TYPE */
 701         if (pmt && !IsEqualGUID(&pmt->majortype, &GUID_NULL) && !IsEqualGUID(&pmt->subtype, &GUID_NULL))
 702             hr = This->pConnectSpecific(iface, pReceivePin, pmt);
 703         else
 704         {
 705             /* negotiate media type */
 706
 707             IEnumMediaTypes * pEnumCandidates;
 708             AM_MEDIA_TYPE * pmtCandidate; /* Candidate media type */
 709
 710             if (SUCCEEDED(hr = IPin_EnumMediaTypes(iface, &pEnumCandidates)))
 711             {
 712                 hr = VFW_E_NO_ACCEPTABLE_TYPES; /* Assume the worst, but set to S_OK if connected successfully */
 713
 714                 /* try this filter's media types first */
 715                 while (S_OK == IEnumMediaTypes_Next(pEnumCandidates, 1, &pmtCandidate, NULL))
 716                 {
 717                     if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
 718                         (This->pConnectSpecific(iface, pReceivePin, pmtCandidate) == S_OK))
 719                     {
 720                         hr = S_OK;
 721                         CoTaskMemFree(pmtCandidate);
 722                         break;
 723                     }
 724                     CoTaskMemFree(pmtCandidate);
 725                 }
 726                 IEnumMediaTypes_Release(pEnumCandidates);
 727             }
 728
 729             /* then try receiver filter's media types */
 730             if (hr != S_OK && SUCCEEDED(hr = IPin_EnumMediaTypes(pReceivePin, &pEnumCandidates))) /* if we haven't already connected successfully */
 731             {
 732                 hr = VFW_E_NO_ACCEPTABLE_TYPES; /* Assume the worst, but set to S_OK if connected successfully */
 733
 734                 while (S_OK == IEnumMediaTypes_Next(pEnumCandidates, 1, &pmtCandidate, NULL))
 735                 {
 736                     if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
 737                         (This->pConnectSpecific(iface, pReceivePin, pmtCandidate) == S_OK))
 738                     {
 739                         hr = S_OK;
 740                         CoTaskMemFree(pmtCandidate);
 741                         break;
 742                     }
 743                     CoTaskMemFree(pmtCandidate);
 744                 } /* while */
 745                 IEnumMediaTypes_Release(pEnumCandidates);
 746             } /* if not found */
 747         } /* if negotiate media type */
 748     } /* if succeeded */
 749     LeaveCriticalSection(This->pin.pCritSec);
 750
 751     TRACE(" -- %x\n", hr);
 752     return hr;
 753 }
 754
 755 HRESULT WINAPI OutputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 756 {
 757     ERR("Incoming connection on an output pin! (%p, %p)\n", pReceivePin, pmt);
 758
 759     return E_UNEXPECTED;
 760 }
 761
 762 HRESULT WINAPI OutputPin_Disconnect(IPin * iface)
 763 {
 764     HRESULT hr;
 765     OutputPin *This = (OutputPin *)iface;
 766
 767     TRACE("()\n");
 768
 769     EnterCriticalSection(This->pin.pCritSec);
 770     {
 771         if (This->pMemInputPin)
 772         {
 773             IMemInputPin_Release(This->pMemInputPin);
 774             This->pMemInputPin = NULL;
 775         }
 776         if (This->pin.pConnectedTo)
 777         {
 778             IPin_Release(This->pin.pConnectedTo);
 779             This->pin.pConnectedTo = NULL;
 780             hr = S_OK;
 781         }
 782         else
 783             hr = S_FALSE;
 784     }
 785     LeaveCriticalSection(This->pin.pCritSec);
 786
 787     return hr;
 788 }
 789
 790 HRESULT WINAPI OutputPin_EndOfStream(IPin * iface)
 791 {
 792     TRACE("()\n");
 793
 794     /* not supposed to do anything in an output pin */
 795
 796     return E_UNEXPECTED;
 797 }
 798
 799 HRESULT WINAPI OutputPin_BeginFlush(IPin * iface)
 800 {
 801     TRACE("(%p)->()\n", iface);
 802
 803     /* not supposed to do anything in an output pin */
 804
 805     return E_UNEXPECTED;
 806 }
 807
 808 HRESULT WINAPI OutputPin_EndFlush(IPin * iface)
 809 {
 810     TRACE("(%p)->()\n", iface);
 811
 812     /* not supposed to do anything in an output pin */
 813
 814     return E_UNEXPECTED;
 815 }
 816
 817 HRESULT WINAPI OutputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
 818 {
 819     TRACE("(%p)->(%x%08x, %x%08x, %e)\n", iface, (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
 820
 821     /* not supposed to do anything in an output pin */
 822
 823     return E_UNEXPECTED;
 824 }
 825
 826 static const IPinVtbl OutputPin_Vtbl =
 827 {
 828     OutputPin_QueryInterface,
 829     IPinImpl_AddRef,
 830     OutputPin_Release,
 831     OutputPin_Connect,
 832     OutputPin_ReceiveConnection,
 833     OutputPin_Disconnect,
 834     IPinImpl_ConnectedTo,
 835     IPinImpl_ConnectionMediaType,
 836     IPinImpl_QueryPinInfo,
 837     IPinImpl_QueryDirection,
 838     IPinImpl_QueryId,
 839     IPinImpl_QueryAccept,
 840     IPinImpl_EnumMediaTypes,
 841     IPinImpl_QueryInternalConnections,
 842     OutputPin_EndOfStream,
 843     OutputPin_BeginFlush,
 844     OutputPin_EndFlush,
 845     OutputPin_NewSegment
 846 };
 847
 848 HRESULT OutputPin_GetDeliveryBuffer(OutputPin * This, IMediaSample ** ppSample, REFERENCE_TIME * tStart, REFERENCE_TIME * tStop, DWORD dwFlags)
 849 {
 850     HRESULT hr;
 851
 852     TRACE("(%p, %p, %p, %x)\n", ppSample, tStart, tStop, dwFlags);
 853
 854     EnterCriticalSection(This->pin.pCritSec);
 855     {
 856         if (!This->pin.pConnectedTo)
 857             hr = VFW_E_NOT_CONNECTED;
 858         else
 859         {
 860             IMemAllocator * pAlloc = NULL;
 861
 862             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
 863
 864             if (SUCCEEDED(hr))
 865                 hr = IMemAllocator_GetBuffer(pAlloc, ppSample, tStart, tStop, dwFlags);
 866
 867             if (SUCCEEDED(hr))
 868                 hr = IMediaSample_SetTime(*ppSample, tStart, tStop);
 869
 870             if (pAlloc)
 871                 IMemAllocator_Release(pAlloc);
 872         }
 873     }
 874     LeaveCriticalSection(This->pin.pCritSec);
 875
 876     return hr;
 877 }
 878
 879 HRESULT OutputPin_SendSample(OutputPin * This, IMediaSample * pSample)
 880 {
 881     HRESULT hr = S_OK;
 882     IMemInputPin * pMemConnected = NULL;
 883
 884     EnterCriticalSection(This->pin.pCritSec);
 885     {
 886         if (!This->pin.pConnectedTo || !This->pMemInputPin)
 887             hr = VFW_E_NOT_CONNECTED;
 888         else
 889         {
 890             /* we don't have the lock held when using This->pMemInputPin,
 891              * so we need to AddRef it to stop it being deleted while we are
 892              * using it. */
 893             pMemConnected = This->pMemInputPin;
 894             IMemInputPin_AddRef(pMemConnected);
 895         }
 896     }
 897     LeaveCriticalSection(This->pin.pCritSec);
 898
 899     if (SUCCEEDED(hr))
 900     {
 901         /* NOTE: if we are in a critical section when Receive is called
 902          * then it causes some problems (most notably with the native Video
 903          * Renderer) if we are re-entered for whatever reason */
 904         hr = IMemInputPin_Receive(pMemConnected, pSample);
 905         IMemInputPin_Release(pMemConnected);
 906     }
 907
 908     return hr;
 909 }
 910
 911 HRESULT OutputPin_DeliverNewSegment(OutputPin * This, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
 912 {
 913     HRESULT hr;
 914
 915     EnterCriticalSection(This->pin.pCritSec);
 916     {
 917         if (!This->pin.pConnectedTo)
 918             hr = VFW_E_NOT_CONNECTED;
 919         else
 920             hr = IPin_NewSegment(This->pin.pConnectedTo, tStart, tStop, dRate);
 921     }
 922     LeaveCriticalSection(This->pin.pCritSec);
 923
 924     return hr;
 925 }
 926
 927 HRESULT OutputPin_CommitAllocator(OutputPin * This)
 928 {
 929     HRESULT hr;
 930
 931     TRACE("(%p)->()\n", This);
 932
 933     EnterCriticalSection(This->pin.pCritSec);
 934     {
 935         if (!This->pin.pConnectedTo || !This->pMemInputPin)
 936             hr = VFW_E_NOT_CONNECTED;
 937         else
 938         {
 939             IMemAllocator * pAlloc = NULL;
 940
 941             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
 942
 943             if (SUCCEEDED(hr))
 944                 hr = IMemAllocator_Commit(pAlloc);
 945
 946             if (pAlloc)
 947                 IMemAllocator_Release(pAlloc);
 948         }
 949     }
 950     LeaveCriticalSection(This->pin.pCritSec);
 951
 952     return hr;
 953 }
 954
 955 HRESULT OutputPin_DeliverDisconnect(OutputPin * This)
 956 {
 957     HRESULT hr;
 958
 959     TRACE("(%p)->()\n", This);
 960
 961     EnterCriticalSection(This->pin.pCritSec);
 962     {
 963         if (!This->pin.pConnectedTo || !This->pMemInputPin)
 964             hr = VFW_E_NOT_CONNECTED;
 965         else
 966         {
 967             IMemAllocator * pAlloc = NULL;
 968
 969             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
 970
 971             if (SUCCEEDED(hr))
 972                 hr = IMemAllocator_Decommit(pAlloc);
 973
 974             if (pAlloc)
 975                 IMemAllocator_Release(pAlloc);
 976
 977             if (SUCCEEDED(hr))
 978                 hr = IPin_Disconnect(This->pin.pConnectedTo);
 979         }
 980     }
 981     LeaveCriticalSection(This->pin.pCritSec);
 982
 983     return hr;
 984 }
 985
 986
 987 HRESULT PullPin_Construct(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
 988 {
 989     PullPin * pPinImpl;
 990
 991     *ppPin = NULL;
 992
 993     if (pPinInfo->dir != PINDIR_INPUT)
 994     {
 995         ERR("Pin direction(%x) != PINDIR_INPUT\n", pPinInfo->dir);
 996         return E_INVALIDARG;
 997     }
 998
 999     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
1000
1001     if (!pPinImpl)
1002         return E_OUTOFMEMORY;
1003
1004     if (SUCCEEDED(PullPin_Init(pPinInfo, pSampleProc, pUserData, pQueryAccept, pCritSec, pPinImpl)))
1005     {
1006         pPinImpl->pin.lpVtbl = &PullPin_Vtbl;
1007
1008         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
1009         return S_OK;
1010     }
1011     return E_FAIL;
1012 }
1013
1014 HRESULT PullPin_Init(const PIN_INFO * pPinInfo, SAMPLEPROC pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, PullPin * pPinImpl)
1015 {
1016     /* Common attributes */
1017     pPinImpl->pin.refCount = 1;
1018     pPinImpl->pin.pConnectedTo = NULL;
1019     pPinImpl->pin.fnQueryAccept = pQueryAccept;
1020     pPinImpl->pin.pUserData = pUserData;
1021     pPinImpl->pin.pCritSec = pCritSec;
1022     Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
1023     ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
1024
1025     /* Input pin attributes */
1026     pPinImpl->fnSampleProc = pSampleProc;
1027     pPinImpl->fnPreConnect = NULL;
1028     pPinImpl->pAlloc = NULL;
1029     pPinImpl->pReader = NULL;
1030     pPinImpl->hThread = NULL;
1031     pPinImpl->hEventStateChanged = CreateEventW(NULL, FALSE, TRUE, NULL);
1032
1033     pPinImpl->rtStart = 0;
1034     pPinImpl->rtStop = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
1035
1036     return S_OK;
1037 }
1038
1039 HRESULT WINAPI PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
1040 {
1041     PIN_DIRECTION pindirReceive;
1042     HRESULT hr = S_OK;
1043     PullPin *This = (PullPin *)iface;
1044
1045     TRACE("(%p/%p)->(%p, %p)\n", This, iface, pReceivePin, pmt);
1046     dump_AM_MEDIA_TYPE(pmt);
1047
1048     EnterCriticalSection(This->pin.pCritSec);
1049     {
1050         if (This->pin.pConnectedTo)
1051             hr = VFW_E_ALREADY_CONNECTED;
1052
1053         if (SUCCEEDED(hr) && (This->pin.fnQueryAccept(This->pin.pUserData, pmt) != S_OK))
1054             hr = VFW_E_TYPE_NOT_ACCEPTED; /* FIXME: shouldn't we just map common errors onto
1055                                            * VFW_E_TYPE_NOT_ACCEPTED and pass the value on otherwise? */
1056
1057         if (SUCCEEDED(hr))
1058         {
1059             IPin_QueryDirection(pReceivePin, &pindirReceive);
1060
1061             if (pindirReceive != PINDIR_OUTPUT)
1062             {
1063                 ERR("Can't connect from non-output pin\n");
1064                 hr = VFW_E_INVALID_DIRECTION;
1065             }
1066         }
1067
1068         if (SUCCEEDED(hr))
1069         {
1070             hr = IPin_QueryInterface(pReceivePin, &IID_IAsyncReader, (LPVOID *)&This->pReader);
1071         }
1072
1073         if (SUCCEEDED(hr))
1074         {
1075             ALLOCATOR_PROPERTIES props;
1076             props.cBuffers = 3;
1077             props.cbBuffer = 64 * 1024; /* 64k bytes */
1078             props.cbAlign = 1;
1079             props.cbPrefix = 0;
1080             hr = IAsyncReader_RequestAllocator(This->pReader, NULL, &props, &This->pAlloc);
1081         }
1082
1083         if (SUCCEEDED(hr) && This->fnPreConnect)
1084         {
1085             hr = This->fnPreConnect(iface, pReceivePin);
1086         }
1087
1088         if (SUCCEEDED(hr))
1089         {
1090             CopyMediaType(&This->pin.mtCurrent, pmt);
1091             This->pin.pConnectedTo = pReceivePin;
1092             IPin_AddRef(pReceivePin);
1093         }
1094     }
1095     LeaveCriticalSection(This->pin.pCritSec);
1096     return hr;
1097 }
1098
1099 HRESULT WINAPI PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
1100 {
1101     PullPin *This = (PullPin *)iface;
1102
1103     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
1104
1105     *ppv = NULL;
1106
1107     if (IsEqualIID(riid, &IID_IUnknown))
1108         *ppv = (LPVOID)iface;
1109     else if (IsEqualIID(riid, &IID_IPin))
1110         *ppv = (LPVOID)iface;
1111
1112     if (*ppv)
1113     {
1114         IUnknown_AddRef((IUnknown *)(*ppv));
1115         return S_OK;
1116     }
1117
1118     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
1119
1120     return E_NOINTERFACE;
1121 }
1122
1123 ULONG WINAPI PullPin_Release(IPin * iface)
1124 {
1125     PullPin *This = (PullPin *)iface;
1126     ULONG refCount = InterlockedDecrement(&This->pin.refCount);
1127
1128     TRACE("(%p)->() Release from %d\n", This, refCount + 1);
1129
1130     if (!refCount)
1131     {
1132         if (This->hThread)
1133             PullPin_StopProcessing(This);
1134         if(This->pAlloc)
1135             IMemAllocator_Release(This->pAlloc);
1136         if(This->pReader)
1137             IAsyncReader_Release(This->pReader);
1138         CloseHandle(This->hEventStateChanged);
1139         CoTaskMemFree(This);
1140         return 0;
1141     }
1142     return refCount;
1143 }
1144
1145 static DWORD WINAPI PullPin_Thread_Main(LPVOID pv)
1146 {
1147     for (;;)
1148         SleepEx(INFINITE, TRUE);
1149 }
1150
1151 static void CALLBACK PullPin_Thread_Process(ULONG_PTR iface)
1152 {
1153     PullPin *This = (PullPin *)iface;
1154     HRESULT hr;
1155
1156     REFERENCE_TIME rtCurrent;
1157     ALLOCATOR_PROPERTIES allocProps;
1158
1159     CoInitializeEx(NULL, COINIT_MULTITHREADED);
1160
1161     SetEvent(This->hEventStateChanged);
1162
1163     hr = IMemAllocator_GetProperties(This->pAlloc, &allocProps);
1164
1165     rtCurrent = MEDIATIME_FROM_BYTES(ALIGNDOWN(BYTES_FROM_MEDIATIME(This->rtStart), allocProps.cbAlign));
1166
1167     TRACE("Start\n");
1168
1169     while (rtCurrent < This->rtStop && hr == S_OK)
1170     {
1171         /* FIXME: to improve performance by quite a bit this should be changed
1172          * so that one sample is processed while one sample is fetched. However,
1173          * it is harder to debug so for the moment it will stay as it is */
1174         IMediaSample * pSample = NULL;
1175         REFERENCE_TIME rtSampleStop;
1176         DWORD_PTR dwUser;
1177
1178         TRACE("Process sample\n");
1179
1180         hr = IMemAllocator_GetBuffer(This->pAlloc, &pSample, NULL, NULL, 0);
1181
1182         if (SUCCEEDED(hr))
1183         {
1184             rtSampleStop = rtCurrent + MEDIATIME_FROM_BYTES(IMediaSample_GetSize(pSample));
1185             if (rtSampleStop > This->rtStop)
1186                 rtSampleStop = MEDIATIME_FROM_BYTES(ALIGNUP(BYTES_FROM_MEDIATIME(This->rtStop), allocProps.cbAlign));
1187             hr = IMediaSample_SetTime(pSample, &rtCurrent, &rtSampleStop);
1188             rtCurrent = rtSampleStop;
1189         }
1190
1191         if (SUCCEEDED(hr))
1192             hr = IAsyncReader_Request(This->pReader, pSample, (ULONG_PTR)0);
1193
1194         if (SUCCEEDED(hr))
1195             hr = IAsyncReader_WaitForNext(This->pReader, 10000, &pSample, &dwUser);
1196
1197         if (SUCCEEDED(hr))
1198             hr = This->fnSampleProc(This->pin.pUserData, pSample);
1199         else
1200             ERR("Processing error: %x\n", hr);
1201
1202         if (pSample)
1203             IMediaSample_Release(pSample);
1204     }
1205
1206     CoUninitialize();
1207
1208     TRACE("End\n");
1209 }
1210
1211 static void CALLBACK PullPin_Thread_Stop(ULONG_PTR iface)
1212 {
1213     PullPin *This = (PullPin *)iface;
1214
1215     TRACE("(%p/%p)->()\n", This, (LPVOID)iface);
1216
1217     EnterCriticalSection(This->pin.pCritSec);
1218     {
1219         HRESULT hr;
1220
1221         CloseHandle(This->hThread);
1222         This->hThread = NULL;
1223         if (FAILED(hr = IMemAllocator_Decommit(This->pAlloc)))
1224             ERR("Allocator decommit failed with error %x. Possible memory leak\n", hr);
1225     }
1226     LeaveCriticalSection(This->pin.pCritSec);
1227
1228     SetEvent(This->hEventStateChanged);
1229
1230     ExitThread(0);
1231 }
1232
1233 HRESULT PullPin_InitProcessing(PullPin * This)
1234 {
1235     HRESULT hr = S_OK;
1236
1237     TRACE("(%p)->()\n", This);
1238
1239     assert(!This->hThread);
1240
1241     /* if we are connected */
1242     if (This->pAlloc)
1243     {
1244         EnterCriticalSection(This->pin.pCritSec);
1245         {
1246             DWORD dwThreadId;
1247             assert(!This->hThread);
1248
1249             This->hThread = CreateThread(NULL, 0, PullPin_Thread_Main, NULL, 0, &dwThreadId);
1250             if (!This->hThread)
1251                 hr = HRESULT_FROM_WIN32(GetLastError());
1252
1253             if (SUCCEEDED(hr))
1254                 hr = IMemAllocator_Commit(This->pAlloc);
1255         }
1256         LeaveCriticalSection(This->pin.pCritSec);
1257     }
1258
1259     TRACE(" -- %x\n", hr);
1260
1261     return hr;
1262 }
1263
1264 HRESULT PullPin_StartProcessing(PullPin * This)
1265 {
1266     /* if we are connected */
1267     TRACE("(%p)->()\n", This);
1268     if(This->pAlloc)
1269     {
1270         assert(This->hThread);
1271
1272         ResetEvent(This->hEventStateChanged);
1273
1274         if (!QueueUserAPC(PullPin_Thread_Process, This->hThread, (ULONG_PTR)This))
1275             return HRESULT_FROM_WIN32(GetLastError());
1276     }
1277
1278     return S_OK;
1279 }
1280
1281 HRESULT PullPin_PauseProcessing(PullPin * This)
1282 {
1283     /* make the processing function exit its loop */
1284     This->rtStop = 0;
1285
1286     return S_OK;
1287 }
1288
1289 HRESULT PullPin_StopProcessing(PullPin * This)
1290 {
1291     /* if we are connected */
1292     if (This->pAlloc)
1293     {
1294         assert(This->hThread);
1295
1296         ResetEvent(This->hEventStateChanged);
1297
1298         PullPin_PauseProcessing(This);
1299
1300         if (!QueueUserAPC(PullPin_Thread_Stop, This->hThread, (ULONG_PTR)This))
1301             return HRESULT_FROM_WIN32(GetLastError());
1302     }
1303
1304     return S_OK;
1305 }
1306
1307 HRESULT PullPin_WaitForStateChange(PullPin * This, DWORD dwMilliseconds)
1308 {
1309     if (WaitForSingleObject(This->hEventStateChanged, dwMilliseconds) == WAIT_TIMEOUT)
1310         return S_FALSE;
1311     return S_OK;
1312 }
1313
1314 HRESULT PullPin_Seek(PullPin * This, REFERENCE_TIME rtStart, REFERENCE_TIME rtStop)
1315 {
1316     FIXME("(%p)->(%x%08x, %x%08x)\n", This, (LONG)(rtStart >> 32), (LONG)rtStart, (LONG)(rtStop >> 32), (LONG)rtStop);
1317
1318     PullPin_BeginFlush((IPin *)This);
1319     /* FIXME: need critical section? */
1320     This->rtStart = rtStart;
1321     This->rtStop = rtStop;
1322     PullPin_EndFlush((IPin *)This);
1323
1324     return S_OK;
1325 }
1326
1327 HRESULT WINAPI PullPin_EndOfStream(IPin * iface)
1328 {
1329     FIXME("(%p)->()\n", iface);
1330     return E_NOTIMPL;
1331 }
1332
1333 HRESULT WINAPI PullPin_BeginFlush(IPin * iface)
1334 {
1335     FIXME("(%p)->()\n", iface);
1336     return E_NOTIMPL;
1337 }
1338
1339 HRESULT WINAPI PullPin_EndFlush(IPin * iface)
1340 {
1341     FIXME("(%p)->()\n", iface);
1342     return E_NOTIMPL;
1343 }
1344
1345 HRESULT WINAPI PullPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
1346 {
1347     FIXME("(%p)->(%s, %s, %g)\n", iface, wine_dbgstr_longlong(tStart), wine_dbgstr_longlong(tStop), dRate);
1348     return E_NOTIMPL;
1349 }
1350
1351 static const IPinVtbl PullPin_Vtbl =
1352 {
1353     PullPin_QueryInterface,
1354     IPinImpl_AddRef,
1355     PullPin_Release,
1356     OutputPin_Connect,
1357     PullPin_ReceiveConnection,
1358     IPinImpl_Disconnect,
1359     IPinImpl_ConnectedTo,
1360     IPinImpl_ConnectionMediaType,
1361     IPinImpl_QueryPinInfo,
1362     IPinImpl_QueryDirection,
1363     IPinImpl_QueryId,
1364     IPinImpl_QueryAccept,
1365     IPinImpl_EnumMediaTypes,
1366     IPinImpl_QueryInternalConnections,
1367     PullPin_EndOfStream,
1368     PullPin_BeginFlush,
1369     PullPin_EndFlush,
1370     PullPin_NewSegment
1371 };