dlls/quartz/parser.c

   1 /*
   2  * Parser (Base for parsers and splitters)
   3  *
   4  * Copyright 2003 Robert Shearman
   5  * Copyright 2004-2005 Christian Costa
   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 "quartz_private.h"
  23 #include "control_private.h"
  24 #include "pin.h"
  25
  26 #include "vfwmsgs.h"
  27 #include "amvideo.h"
  28
  29 #include "wine/unicode.h"
  30 #include "wine/debug.h"
  31
  32 #include <math.h>
  33 #include <assert.h>
  34
  35 #include "parser.h"
  36
  37 WINE_DEFAULT_DEBUG_CHANNEL(quartz);
  38
  39 static const WCHAR wcsInputPinName[] = {'i','n','p','u','t',' ','p','i','n',0};
  40 static const IMediaSeekingVtbl Parser_Seeking_Vtbl;
  41 static const IPinVtbl Parser_OutputPin_Vtbl;
  42 static const IPinVtbl Parser_InputPin_Vtbl;
  43
  44 static HRESULT Parser_OutputPin_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt);
  45 static HRESULT Parser_ChangeCurrent(IBaseFilter *iface);
  46 static HRESULT Parser_ChangeStop(IBaseFilter *iface);
  47 static HRESULT Parser_ChangeRate(IBaseFilter *iface);
  48
  49 static inline ParserImpl *impl_from_IMediaSeeking( IMediaSeeking *iface )
  50 {
  51     return (ParserImpl *)((char*)iface - FIELD_OFFSET(ParserImpl, mediaSeeking.lpVtbl));
  52 }
  53
  54
  55 HRESULT Parser_Create(ParserImpl* pParser, const IBaseFilterVtbl *Parser_Vtbl, const CLSID* pClsid, PFN_PROCESS_SAMPLE fnProcessSample, PFN_QUERY_ACCEPT fnQueryAccept, PFN_PRE_CONNECT fnPreConnect, PFN_CLEANUP fnCleanup, PFN_DISCONNECT fnDisconnect, REQUESTPROC fnRequest, STOPPROCESSPROC fnDone, CHANGEPROC stop, CHANGEPROC current, CHANGEPROC rate)
  56 {
  57     HRESULT hr;
  58     PIN_INFO piInput;
  59
  60     /* pTransformFilter is already allocated */
  61     pParser->clsid = *pClsid;
  62     pParser->lpVtbl = Parser_Vtbl;
  63     pParser->refCount = 1;
  64     InitializeCriticalSection(&pParser->csFilter);
  65     pParser->csFilter.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ParserImpl.csFilter");
  66     pParser->state = State_Stopped;
  67     pParser->pClock = NULL;
  68     pParser->fnDisconnect = fnDisconnect;
  69     ZeroMemory(&pParser->filterInfo, sizeof(FILTER_INFO));
  70     pParser->lastpinchange = GetTickCount();
  71
  72     pParser->cStreams = 0;
  73     pParser->ppPins = CoTaskMemAlloc(1 * sizeof(IPin *));
  74
  75     /* construct input pin */
  76     piInput.dir = PINDIR_INPUT;
  77     piInput.pFilter = (IBaseFilter *)pParser;
  78     lstrcpynW(piInput.achName, wcsInputPinName, sizeof(piInput.achName) / sizeof(piInput.achName[0]));
  79
  80     if (!current)
  81         current = Parser_ChangeCurrent;
  82
  83     if (!stop)
  84         stop = Parser_ChangeStop;
  85
  86     if (!rate)
  87         rate = Parser_ChangeRate;
  88
  89     MediaSeekingImpl_Init((IBaseFilter*)pParser, stop, current, rate, &pParser->mediaSeeking, &pParser->csFilter);
  90     pParser->mediaSeeking.lpVtbl = &Parser_Seeking_Vtbl;
  91
  92     hr = PullPin_Construct(&Parser_InputPin_Vtbl, &piInput, fnProcessSample, (LPVOID)pParser, fnQueryAccept, fnCleanup, fnRequest, fnDone, &pParser->csFilter, (IPin **)&pParser->pInputPin);
  93
  94     if (SUCCEEDED(hr))
  95     {
  96         pParser->ppPins[0] = (IPin *)pParser->pInputPin;
  97         pParser->pInputPin->fnPreConnect = fnPreConnect;
  98     }
  99     else
 100     {
 101         CoTaskMemFree(pParser->ppPins);
 102         pParser->csFilter.DebugInfo->Spare[0] = 0;
 103         DeleteCriticalSection(&pParser->csFilter);
 104         CoTaskMemFree(pParser);
 105     }
 106
 107     return hr;
 108 }
 109
 110 HRESULT WINAPI Parser_QueryInterface(IBaseFilter * iface, REFIID riid, LPVOID * ppv)
 111 {
 112     ParserImpl *This = (ParserImpl *)iface;
 113     TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
 114
 115     *ppv = NULL;
 116
 117     if (IsEqualIID(riid, &IID_IUnknown))
 118         *ppv = (LPVOID)This;
 119     else if (IsEqualIID(riid, &IID_IPersist))
 120         *ppv = (LPVOID)This;
 121     else if (IsEqualIID(riid, &IID_IMediaFilter))
 122         *ppv = (LPVOID)This;
 123     else if (IsEqualIID(riid, &IID_IBaseFilter))
 124         *ppv = (LPVOID)This;
 125     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 126         *ppv = (LPVOID)&This->mediaSeeking;
 127
 128     if (*ppv)
 129     {
 130         IUnknown_AddRef((IUnknown *)(*ppv));
 131         return S_OK;
 132     }
 133
 134     if (!IsEqualIID(riid, &IID_IPin) && !IsEqualIID(riid, &IID_IVideoWindow))
 135         FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 136
 137     return E_NOINTERFACE;
 138 }
 139
 140 ULONG WINAPI Parser_AddRef(IBaseFilter * iface)
 141 {
 142     ParserImpl *This = (ParserImpl *)iface;
 143     ULONG refCount = InterlockedIncrement(&This->refCount);
 144
 145     TRACE("(%p/%p)->() AddRef from %d\n", This, iface, refCount - 1);
 146
 147     return refCount;
 148 }
 149
 150 void Parser_Destroy(ParserImpl *This)
 151 {
 152     IPin *connected = NULL;
 153     ULONG pinref;
 154
 155     assert(!This->refCount);
 156     PullPin_WaitForStateChange(This->pInputPin, INFINITE);
 157
 158     if (This->pClock)
 159         IReferenceClock_Release(This->pClock);
 160
 161     /* Don't need to clean up output pins, freeing input pin will do that */
 162     IPin_ConnectedTo((IPin *)This->pInputPin, &connected);
 163     if (connected)
 164     {
 165         assert(IPin_Disconnect(connected) == S_OK);
 166         IPin_Release(connected);
 167         assert(IPin_Disconnect((IPin *)This->pInputPin) == S_OK);
 168     }
 169     pinref = IPin_Release((IPin *)This->pInputPin);
 170     if (pinref)
 171     {
 172         /* Valgrind could find this, if I kill it here */
 173         ERR("pinref should be null, is %u, destroying anyway\n", pinref);
 174         assert((LONG)pinref > 0);
 175
 176         while (pinref)
 177             pinref = IPin_Release((IPin *)This->pInputPin);
 178     }
 179
 180     CoTaskMemFree(This->ppPins);
 181     This->lpVtbl = NULL;
 182
 183     This->csFilter.DebugInfo->Spare[0] = 0;
 184     DeleteCriticalSection(&This->csFilter);
 185
 186     TRACE("Destroying parser\n");
 187     CoTaskMemFree(This);
 188 }
 189
 190 ULONG WINAPI Parser_Release(IBaseFilter * iface)
 191 {
 192     ParserImpl *This = (ParserImpl *)iface;
 193     ULONG refCount = InterlockedDecrement(&This->refCount);
 194
 195     TRACE("(%p)->() Release from %d\n", This, refCount + 1);
 196
 197     if (!refCount)
 198         Parser_Destroy(This);
 199
 200     return refCount;
 201 }
 202
 203 /** IPersist methods **/
 204
 205 HRESULT WINAPI Parser_GetClassID(IBaseFilter * iface, CLSID * pClsid)
 206 {
 207     ParserImpl *This = (ParserImpl *)iface;
 208
 209     TRACE("(%p)\n", pClsid);
 210
 211     *pClsid = This->clsid;
 212
 213     return S_OK;
 214 }
 215
 216 /** IMediaFilter methods **/
 217
 218 HRESULT WINAPI Parser_Stop(IBaseFilter * iface)
 219 {
 220     HRESULT hr;
 221     ParserImpl *This = (ParserImpl *)iface;
 222     PullPin *pin = (PullPin *)This->ppPins[0];
 223
 224     TRACE("()\n");
 225
 226     EnterCriticalSection(&pin->thread_lock);
 227     EnterCriticalSection(&This->csFilter);
 228     {
 229         if (This->state == State_Stopped)
 230         {
 231             LeaveCriticalSection(&This->csFilter);
 232             LeaveCriticalSection(&pin->thread_lock);
 233             return S_OK;
 234         }
 235         This->state = State_Stopped;
 236     }
 237     LeaveCriticalSection(&This->csFilter);
 238
 239     hr = PullPin_StopProcessing(This->pInputPin);
 240     LeaveCriticalSection(&pin->thread_lock);
 241     return hr;
 242 }
 243
 244 HRESULT WINAPI Parser_Pause(IBaseFilter * iface)
 245 {
 246     HRESULT hr = S_OK;
 247     ParserImpl *This = (ParserImpl *)iface;
 248     PullPin *pin = (PullPin *)This->ppPins[0];
 249
 250     TRACE("()\n");
 251
 252     EnterCriticalSection(&pin->thread_lock);
 253     EnterCriticalSection(&This->csFilter);
 254
 255     if (This->state == State_Paused)
 256     {
 257         LeaveCriticalSection(&This->csFilter);
 258         LeaveCriticalSection(&pin->thread_lock);
 259         return S_OK;
 260     }
 261
 262     if (This->state == State_Stopped)
 263     {
 264         LeaveCriticalSection(&This->csFilter);
 265         hr = IBaseFilter_Run(iface, -1);
 266         EnterCriticalSection(&This->csFilter);
 267     }
 268
 269     This->state = State_Paused;
 270
 271     LeaveCriticalSection(&This->csFilter);
 272     if (SUCCEEDED(hr))
 273         hr = PullPin_PauseProcessing(This->pInputPin);
 274     LeaveCriticalSection(&pin->thread_lock);
 275
 276     return hr;
 277 }
 278
 279 HRESULT WINAPI Parser_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 280 {
 281     HRESULT hr = S_OK;
 282     ParserImpl *This = (ParserImpl *)iface;
 283     PullPin *pin = (PullPin *)This->ppPins[0];
 284
 285     int i;
 286
 287     TRACE("(%s)\n", wine_dbgstr_longlong(tStart));
 288
 289     EnterCriticalSection(&pin->thread_lock);
 290     EnterCriticalSection(&This->csFilter);
 291     {
 292         if (This->state == State_Running)
 293         {
 294             LeaveCriticalSection(&This->csFilter);
 295             LeaveCriticalSection(&pin->thread_lock);
 296             return S_OK;
 297         }
 298
 299         This->rtStreamStart = tStart;
 300
 301         if (SUCCEEDED(hr) && (This->state == State_Stopped))
 302         {
 303             LeaveCriticalSection(&This->csFilter);
 304             hr = PullPin_InitProcessing(This->pInputPin);
 305             EnterCriticalSection(&This->csFilter);
 306
 307             if (SUCCEEDED(hr))
 308             {
 309                 for (i = 1; i < (This->cStreams + 1); i++)
 310                 {
 311                     OutputPin_CommitAllocator((OutputPin *)This->ppPins[i]);
 312                 }
 313             }
 314         }
 315
 316         if (SUCCEEDED(hr))
 317         {
 318             LeaveCriticalSection(&This->csFilter);
 319             hr = PullPin_StartProcessing(This->pInputPin);
 320             EnterCriticalSection(&This->csFilter);
 321         }
 322
 323         if (SUCCEEDED(hr))
 324             This->state = State_Running;
 325     }
 326     LeaveCriticalSection(&This->csFilter);
 327     LeaveCriticalSection(&pin->thread_lock);
 328
 329     return hr;
 330 }
 331
 332 HRESULT WINAPI Parser_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
 333 {
 334     ParserImpl *This = (ParserImpl *)iface;
 335     PullPin *pin = (PullPin *)This->ppPins[0];
 336     HRESULT hr = S_OK;
 337
 338     TRACE("(%d, %p)\n", dwMilliSecsTimeout, pState);
 339
 340     EnterCriticalSection(&pin->thread_lock);
 341     EnterCriticalSection(&This->csFilter);
 342     {
 343         *pState = This->state;
 344     }
 345     LeaveCriticalSection(&This->csFilter);
 346
 347     if (This->pInputPin && (PullPin_WaitForStateChange(This->pInputPin, dwMilliSecsTimeout) == S_FALSE))
 348         hr = VFW_S_STATE_INTERMEDIATE;
 349     LeaveCriticalSection(&pin->thread_lock);
 350
 351     return hr;
 352 }
 353
 354 HRESULT WINAPI Parser_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
 355 {
 356     ParserImpl *This = (ParserImpl *)iface;
 357     PullPin *pin = (PullPin *)This->ppPins[0];
 358
 359     TRACE("(%p)\n", pClock);
 360
 361     EnterCriticalSection(&pin->thread_lock);
 362     EnterCriticalSection(&This->csFilter);
 363     {
 364         if (This->pClock)
 365             IReferenceClock_Release(This->pClock);
 366         This->pClock = pClock;
 367         if (This->pClock)
 368             IReferenceClock_AddRef(This->pClock);
 369     }
 370     LeaveCriticalSection(&This->csFilter);
 371     LeaveCriticalSection(&pin->thread_lock);
 372
 373     return S_OK;
 374 }
 375
 376 HRESULT WINAPI Parser_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
 377 {
 378     ParserImpl *This = (ParserImpl *)iface;
 379
 380     TRACE("(%p)\n", ppClock);
 381
 382     EnterCriticalSection(&This->csFilter);
 383     {
 384         *ppClock = This->pClock;
 385         if (This->pClock)
 386             IReferenceClock_AddRef(This->pClock);
 387     }
 388     LeaveCriticalSection(&This->csFilter);
 389
 390     return S_OK;
 391 }
 392
 393 /** IBaseFilter implementation **/
 394
 395 /* FIXME: WRONG */
 396 static HRESULT Parser_GetPin(IBaseFilter *iface, ULONG pos, IPin **pin, DWORD *lastsynctick)
 397 {
 398     ParserImpl *This = (ParserImpl *)iface;
 399
 400     *lastsynctick = This->lastpinchange;
 401
 402     TRACE("Asking for pos %x\n", pos);
 403
 404     /* Input pin also has a pin, hence the > and not >= */
 405     if (pos > This->cStreams)
 406         return S_FALSE;
 407
 408     *pin = This->ppPins[pos];
 409     IPin_AddRef(*pin);
 410     return S_OK;
 411 }
 412
 413 HRESULT WINAPI Parser_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
 414 {
 415     ParserImpl *This = (ParserImpl *)iface;
 416
 417     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 418
 419     return IEnumPinsImpl_Construct(ppEnum, Parser_GetPin, iface);
 420 }
 421
 422 HRESULT WINAPI Parser_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 423 {
 424     FIXME("(%p)->(%s,%p)\n", iface, debugstr_w(Id), ppPin);
 425
 426     /* FIXME: critical section */
 427
 428     return E_NOTIMPL;
 429 }
 430
 431 HRESULT WINAPI Parser_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
 432 {
 433     ParserImpl *This = (ParserImpl *)iface;
 434
 435     TRACE("(%p)\n", pInfo);
 436
 437     strcpyW(pInfo->achName, This->filterInfo.achName);
 438     pInfo->pGraph = This->filterInfo.pGraph;
 439
 440     if (pInfo->pGraph)
 441         IFilterGraph_AddRef(pInfo->pGraph);
 442
 443     return S_OK;
 444 }
 445
 446 HRESULT WINAPI Parser_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
 447 {
 448     HRESULT hr = S_OK;
 449     ParserImpl *This = (ParserImpl *)iface;
 450
 451     TRACE("(%p, %s)\n", pGraph, debugstr_w(pName));
 452
 453     EnterCriticalSection(&This->csFilter);
 454     {
 455         if (pName)
 456             strcpyW(This->filterInfo.achName, pName);
 457         else
 458             *This->filterInfo.achName = '\0';
 459         This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
 460     }
 461     LeaveCriticalSection(&This->csFilter);
 462
 463     return hr;
 464 }
 465
 466 HRESULT WINAPI Parser_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
 467 {
 468     TRACE("(%p)\n", pVendorInfo);
 469     return E_NOTIMPL;
 470 }
 471
 472 HRESULT Parser_AddPin(ParserImpl * This, const PIN_INFO * piOutput, ALLOCATOR_PROPERTIES * props, const AM_MEDIA_TYPE * amt)
 473 {
 474     IPin ** ppOldPins;
 475     HRESULT hr;
 476
 477     ppOldPins = This->ppPins;
 478
 479     This->ppPins = CoTaskMemAlloc((This->cStreams + 2) * sizeof(IPin *));
 480     memcpy(This->ppPins, ppOldPins, (This->cStreams + 1) * sizeof(IPin *));
 481
 482     hr = OutputPin_Construct(&Parser_OutputPin_Vtbl, sizeof(Parser_OutputPin), piOutput, props, NULL, Parser_OutputPin_QueryAccept, &This->csFilter, This->ppPins + (This->cStreams + 1));
 483
 484     if (SUCCEEDED(hr))
 485     {
 486         IPin *pPin = This->ppPins[This->cStreams + 1];
 487         Parser_OutputPin *pin = (Parser_OutputPin *)pPin;
 488         pin->pmt = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 489         CopyMediaType(pin->pmt, amt);
 490         pin->dwSamplesProcessed = 0;
 491
 492         pin->pin.pin.pUserData = (LPVOID)This->ppPins[This->cStreams + 1];
 493         pin->pin.pin.pinInfo.pFilter = (LPVOID)This;
 494         pin->pin.custom_allocator = 1;
 495         This->cStreams++;
 496         This->lastpinchange = GetTickCount();
 497         CoTaskMemFree(ppOldPins);
 498     }
 499     else
 500     {
 501         CoTaskMemFree(This->ppPins);
 502         This->ppPins = ppOldPins;
 503         ERR("Failed with error %x\n", hr);
 504     }
 505
 506     return hr;
 507 }
 508
 509 static HRESULT Parser_RemoveOutputPins(ParserImpl * This)
 510 {
 511     /* NOTE: should be in critical section when calling this function */
 512     HRESULT hr;
 513     ULONG i;
 514     IPin ** ppOldPins = This->ppPins;
 515
 516     TRACE("(%p)\n", This);
 517
 518     /* reduce the pin array down to 1 (just our input pin) */
 519     This->ppPins = CoTaskMemAlloc(sizeof(IPin *) * 1);
 520     memcpy(This->ppPins, ppOldPins, sizeof(IPin *) * 1);
 521
 522     for (i = 0; i < This->cStreams; i++)
 523     {
 524         hr = OutputPin_DeliverDisconnect((OutputPin *)ppOldPins[i + 1]);
 525         TRACE("Disconnect: %08x\n", hr);
 526         IPin_Release(ppOldPins[i + 1]);
 527     }
 528
 529     This->lastpinchange = GetTickCount();
 530     This->cStreams = 0;
 531     CoTaskMemFree(ppOldPins);
 532
 533     return S_OK;
 534 }
 535
 536 static HRESULT Parser_ChangeCurrent(IBaseFilter *iface)
 537 {
 538     FIXME("(%p) filter hasn't implemented current position change!\n", iface);
 539     return S_OK;
 540 }
 541
 542 static HRESULT Parser_ChangeStop(IBaseFilter *iface)
 543 {
 544     FIXME("(%p) filter hasn't implemented stop position change!\n", iface);
 545     return S_OK;
 546 }
 547
 548 static HRESULT Parser_ChangeRate(IBaseFilter *iface)
 549 {
 550     FIXME("(%p) filter hasn't implemented rate change!\n", iface);
 551     return S_OK;
 552 }
 553
 554
 555 static HRESULT WINAPI Parser_Seeking_QueryInterface(IMediaSeeking * iface, REFIID riid, LPVOID * ppv)
 556 {
 557     ParserImpl *This = impl_from_IMediaSeeking(iface);
 558
 559     return IUnknown_QueryInterface((IUnknown *)This, riid, ppv);
 560 }
 561
 562 static ULONG WINAPI Parser_Seeking_AddRef(IMediaSeeking * iface)
 563 {
 564     ParserImpl *This = impl_from_IMediaSeeking(iface);
 565
 566     return IUnknown_AddRef((IUnknown *)This);
 567 }
 568
 569 static ULONG WINAPI Parser_Seeking_Release(IMediaSeeking * iface)
 570 {
 571     ParserImpl *This = impl_from_IMediaSeeking(iface);
 572
 573     return IUnknown_Release((IUnknown *)This);
 574 }
 575
 576 static const IMediaSeekingVtbl Parser_Seeking_Vtbl =
 577 {
 578     Parser_Seeking_QueryInterface,
 579     Parser_Seeking_AddRef,
 580     Parser_Seeking_Release,
 581     MediaSeekingImpl_GetCapabilities,
 582     MediaSeekingImpl_CheckCapabilities,
 583     MediaSeekingImpl_IsFormatSupported,
 584     MediaSeekingImpl_QueryPreferredFormat,
 585     MediaSeekingImpl_GetTimeFormat,
 586     MediaSeekingImpl_IsUsingTimeFormat,
 587     MediaSeekingImpl_SetTimeFormat,
 588     MediaSeekingImpl_GetDuration,
 589     MediaSeekingImpl_GetStopPosition,
 590     MediaSeekingImpl_GetCurrentPosition,
 591     MediaSeekingImpl_ConvertTimeFormat,
 592     MediaSeekingImpl_SetPositions,
 593     MediaSeekingImpl_GetPositions,
 594     MediaSeekingImpl_GetAvailable,
 595     MediaSeekingImpl_SetRate,
 596     MediaSeekingImpl_GetRate,
 597     MediaSeekingImpl_GetPreroll
 598 };
 599
 600 static HRESULT WINAPI Parser_OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 601 {
 602     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 603
 604     TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
 605
 606     *ppv = NULL;
 607
 608     if (IsEqualIID(riid, &IID_IUnknown))
 609         *ppv = (LPVOID)iface;
 610     else if (IsEqualIID(riid, &IID_IPin))
 611         *ppv = (LPVOID)iface;
 612     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 613     {
 614         return IBaseFilter_QueryInterface(This->pin.pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
 615     }
 616
 617     if (*ppv)
 618     {
 619         IUnknown_AddRef((IUnknown *)(*ppv));
 620         return S_OK;
 621     }
 622
 623     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 624
 625     return E_NOINTERFACE;
 626 }
 627
 628 static ULONG WINAPI Parser_OutputPin_Release(IPin * iface)
 629 {
 630     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 631     ULONG refCount = InterlockedDecrement(&This->pin.pin.refCount);
 632
 633     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 634
 635     if (!refCount)
 636     {
 637         FreeMediaType(This->pmt);
 638         CoTaskMemFree(This->pmt);
 639         FreeMediaType(&This->pin.pin.mtCurrent);
 640         CoTaskMemFree(This);
 641         return 0;
 642     }
 643     return refCount;
 644 }
 645
 646 static HRESULT WINAPI Parser_OutputPin_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
 647 {
 648     ENUMMEDIADETAILS emd;
 649     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 650
 651     TRACE("(%p)\n", ppEnum);
 652
 653     /* override this method to allow enumeration of your types */
 654     emd.cMediaTypes = 1;
 655     emd.pMediaTypes = This->pmt;
 656
 657     return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
 658 }
 659
 660 static HRESULT WINAPI Parser_OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 661 {
 662     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 663     ParserImpl *parser = (ParserImpl *)This->pin.pin.pinInfo.pFilter;
 664
 665     /* Set the allocator to our input pin's */
 666     EnterCriticalSection(This->pin.pin.pCritSec);
 667     This->pin.alloc = parser->pInputPin->pAlloc;
 668     LeaveCriticalSection(This->pin.pin.pCritSec);
 669
 670     return OutputPin_Connect(iface, pReceivePin, pmt);
 671 }
 672
 673 static HRESULT Parser_OutputPin_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 674 {
 675     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 676
 677     TRACE("()\n");
 678     dump_AM_MEDIA_TYPE(pmt);
 679
 680     return (memcmp(This->pmt, pmt, sizeof(AM_MEDIA_TYPE)) == 0);
 681 }
 682
 683 static const IPinVtbl Parser_OutputPin_Vtbl =
 684 {
 685     Parser_OutputPin_QueryInterface,
 686     IPinImpl_AddRef,
 687     Parser_OutputPin_Release,
 688     Parser_OutputPin_Connect,
 689     OutputPin_ReceiveConnection,
 690     OutputPin_Disconnect,
 691     IPinImpl_ConnectedTo,
 692     IPinImpl_ConnectionMediaType,
 693     IPinImpl_QueryPinInfo,
 694     IPinImpl_QueryDirection,
 695     IPinImpl_QueryId,
 696     IPinImpl_QueryAccept,
 697     Parser_OutputPin_EnumMediaTypes,
 698     IPinImpl_QueryInternalConnections,
 699     OutputPin_EndOfStream,
 700     OutputPin_BeginFlush,
 701     OutputPin_EndFlush,
 702     OutputPin_NewSegment
 703 };
 704
 705 static HRESULT WINAPI Parser_PullPin_Disconnect(IPin * iface)
 706 {
 707     HRESULT hr;
 708     PullPin *This = (PullPin *)iface;
 709
 710     TRACE("()\n");
 711
 712     EnterCriticalSection(&This->thread_lock);
 713     EnterCriticalSection(This->pin.pCritSec);
 714     {
 715         if (This->pin.pConnectedTo)
 716         {
 717             PullPin *ppin = (PullPin *)This;
 718             FILTER_STATE state;
 719             ParserImpl *Parser = (ParserImpl *)This->pin.pinInfo.pFilter;
 720
 721             LeaveCriticalSection(This->pin.pCritSec);
 722             hr = IBaseFilter_GetState(This->pin.pinInfo.pFilter, INFINITE, &state);
 723             EnterCriticalSection(This->pin.pCritSec);
 724
 725             if (SUCCEEDED(hr) && (state == State_Stopped) && SUCCEEDED(Parser->fnDisconnect(Parser)))
 726             {
 727                 IPin_Release(This->pin.pConnectedTo);
 728                 This->pin.pConnectedTo = NULL;
 729
 730                 if (FAILED(hr = IMemAllocator_Decommit(ppin->pAlloc)))
 731                     ERR("Allocator decommit failed with error %x. Possible memory leak\n", hr);
 732                 hr = Parser_RemoveOutputPins((ParserImpl *)This->pin.pinInfo.pFilter);
 733             }
 734             else
 735                 hr = VFW_E_NOT_STOPPED;
 736         }
 737         else
 738             hr = S_FALSE;
 739     }
 740     LeaveCriticalSection(This->pin.pCritSec);
 741     LeaveCriticalSection(&This->thread_lock);
 742
 743     return hr;
 744 }
 745
 746 HRESULT WINAPI Parser_PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 747 {
 748     HRESULT hr;
 749
 750     TRACE("()\n");
 751
 752     hr = PullPin_ReceiveConnection(iface, pReceivePin, pmt);
 753     if (FAILED(hr))
 754     {
 755         IPinImpl *This = (IPinImpl *)iface;
 756
 757         EnterCriticalSection(This->pCritSec);
 758         Parser_RemoveOutputPins((ParserImpl *)This->pinInfo.pFilter);
 759         LeaveCriticalSection(This->pCritSec);
 760     }
 761
 762     return hr;
 763 }
 764
 765 static const IPinVtbl Parser_InputPin_Vtbl =
 766 {
 767     PullPin_QueryInterface,
 768     IPinImpl_AddRef,
 769     PullPin_Release,
 770     InputPin_Connect,
 771     Parser_PullPin_ReceiveConnection,
 772     Parser_PullPin_Disconnect,
 773     IPinImpl_ConnectedTo,
 774     IPinImpl_ConnectionMediaType,
 775     IPinImpl_QueryPinInfo,
 776     IPinImpl_QueryDirection,
 777     IPinImpl_QueryId,
 778     IPinImpl_QueryAccept,
 779     IPinImpl_EnumMediaTypes,
 780     IPinImpl_QueryInternalConnections,
 781     PullPin_EndOfStream,
 782     PullPin_BeginFlush,
 783     PullPin_EndFlush,
 784     PullPin_NewSegment
 785 };