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     ParserImpl *This = (ParserImpl *)iface;
 221     PullPin *pin = (PullPin *)This->ppPins[0];
 222     int i;
 223
 224     TRACE("()\n");
 225
 226     EnterCriticalSection(&pin->thread_lock);
 227
 228     IAsyncReader_BeginFlush(This->pInputPin->pReader);
 229     EnterCriticalSection(&This->csFilter);
 230
 231     if (This->state == State_Stopped)
 232     {
 233         LeaveCriticalSection(&This->csFilter);
 234         LeaveCriticalSection(&pin->thread_lock);
 235         return S_OK;
 236     }
 237
 238     This->state = State_Stopped;
 239
 240     for (i = 1; i < (This->cStreams + 1); i++)
 241     {
 242         OutputPin_DecommitAllocator((OutputPin *)This->ppPins[i]);
 243     }
 244
 245     LeaveCriticalSection(&This->csFilter);
 246
 247     PullPin_PauseProcessing(This->pInputPin);
 248     PullPin_WaitForStateChange(This->pInputPin, INFINITE);
 249     IAsyncReader_EndFlush(This->pInputPin->pReader);
 250
 251     LeaveCriticalSection(&pin->thread_lock);
 252     return S_OK;
 253 }
 254
 255 HRESULT WINAPI Parser_Pause(IBaseFilter * iface)
 256 {
 257     HRESULT hr = S_OK;
 258     ParserImpl *This = (ParserImpl *)iface;
 259     PullPin *pin = (PullPin *)This->ppPins[0];
 260
 261     TRACE("()\n");
 262
 263     EnterCriticalSection(&pin->thread_lock);
 264     EnterCriticalSection(&This->csFilter);
 265
 266     if (This->state == State_Paused)
 267     {
 268         LeaveCriticalSection(&This->csFilter);
 269         LeaveCriticalSection(&pin->thread_lock);
 270         return S_OK;
 271     }
 272
 273     if (This->state == State_Stopped)
 274     {
 275         LeaveCriticalSection(&This->csFilter);
 276         hr = IBaseFilter_Run(iface, -1);
 277         EnterCriticalSection(&This->csFilter);
 278     }
 279
 280     if (SUCCEEDED(hr))
 281         This->state = State_Paused;
 282
 283     LeaveCriticalSection(&This->csFilter);
 284     LeaveCriticalSection(&pin->thread_lock);
 285
 286     return hr;
 287 }
 288
 289 HRESULT WINAPI Parser_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 290 {
 291     HRESULT hr = S_OK;
 292     ParserImpl *This = (ParserImpl *)iface;
 293     PullPin *pin = (PullPin *)This->ppPins[0];
 294
 295     int i;
 296
 297     TRACE("(%s)\n", wine_dbgstr_longlong(tStart));
 298
 299     EnterCriticalSection(&pin->thread_lock);
 300     EnterCriticalSection(&This->csFilter);
 301     {
 302         HRESULT hr_any = VFW_E_NOT_CONNECTED;
 303
 304         if (This->state == State_Running || This->state == State_Paused)
 305         {
 306             This->state = State_Running;
 307             LeaveCriticalSection(&This->csFilter);
 308             LeaveCriticalSection(&pin->thread_lock);
 309             return S_OK;
 310         }
 311
 312         This->rtStreamStart = tStart;
 313
 314         for (i = 1; i < (This->cStreams + 1); i++)
 315         {
 316             hr = OutputPin_CommitAllocator((OutputPin *)This->ppPins[i]);
 317             if (SUCCEEDED(hr))
 318                 hr_any = hr;
 319         }
 320
 321         hr_any = hr;
 322         if (SUCCEEDED(hr))
 323         {
 324             LeaveCriticalSection(&This->csFilter);
 325             hr = PullPin_StartProcessing(This->pInputPin);
 326             EnterCriticalSection(&This->csFilter);
 327         }
 328
 329         if (SUCCEEDED(hr))
 330             This->state = State_Running;
 331     }
 332     LeaveCriticalSection(&This->csFilter);
 333     LeaveCriticalSection(&pin->thread_lock);
 334
 335     return hr;
 336 }
 337
 338 HRESULT WINAPI Parser_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
 339 {
 340     ParserImpl *This = (ParserImpl *)iface;
 341     PullPin *pin = (PullPin *)This->ppPins[0];
 342     HRESULT hr = S_OK;
 343
 344     TRACE("(%d, %p)\n", dwMilliSecsTimeout, pState);
 345
 346     EnterCriticalSection(&pin->thread_lock);
 347     EnterCriticalSection(&This->csFilter);
 348     {
 349         *pState = This->state;
 350     }
 351     LeaveCriticalSection(&This->csFilter);
 352
 353     if (This->pInputPin && (PullPin_WaitForStateChange(This->pInputPin, dwMilliSecsTimeout) == S_FALSE))
 354         hr = VFW_S_STATE_INTERMEDIATE;
 355     LeaveCriticalSection(&pin->thread_lock);
 356
 357     return hr;
 358 }
 359
 360 HRESULT WINAPI Parser_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
 361 {
 362     ParserImpl *This = (ParserImpl *)iface;
 363     PullPin *pin = (PullPin *)This->ppPins[0];
 364
 365     TRACE("(%p)\n", pClock);
 366
 367     EnterCriticalSection(&pin->thread_lock);
 368     EnterCriticalSection(&This->csFilter);
 369     {
 370         if (This->pClock)
 371             IReferenceClock_Release(This->pClock);
 372         This->pClock = pClock;
 373         if (This->pClock)
 374             IReferenceClock_AddRef(This->pClock);
 375     }
 376     LeaveCriticalSection(&This->csFilter);
 377     LeaveCriticalSection(&pin->thread_lock);
 378
 379     return S_OK;
 380 }
 381
 382 HRESULT WINAPI Parser_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
 383 {
 384     ParserImpl *This = (ParserImpl *)iface;
 385
 386     TRACE("(%p)\n", ppClock);
 387
 388     EnterCriticalSection(&This->csFilter);
 389     {
 390         *ppClock = This->pClock;
 391         if (This->pClock)
 392             IReferenceClock_AddRef(This->pClock);
 393     }
 394     LeaveCriticalSection(&This->csFilter);
 395
 396     return S_OK;
 397 }
 398
 399 /** IBaseFilter implementation **/
 400
 401 /* FIXME: WRONG */
 402 static HRESULT Parser_GetPin(IBaseFilter *iface, ULONG pos, IPin **pin, DWORD *lastsynctick)
 403 {
 404     ParserImpl *This = (ParserImpl *)iface;
 405
 406     *lastsynctick = This->lastpinchange;
 407
 408     TRACE("Asking for pos %x\n", pos);
 409
 410     /* Input pin also has a pin, hence the > and not >= */
 411     if (pos > This->cStreams)
 412         return S_FALSE;
 413
 414     *pin = This->ppPins[pos];
 415     IPin_AddRef(*pin);
 416     return S_OK;
 417 }
 418
 419 HRESULT WINAPI Parser_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
 420 {
 421     ParserImpl *This = (ParserImpl *)iface;
 422
 423     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 424
 425     return IEnumPinsImpl_Construct(ppEnum, Parser_GetPin, iface);
 426 }
 427
 428 HRESULT WINAPI Parser_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 429 {
 430     FIXME("(%p)->(%s,%p)\n", iface, debugstr_w(Id), ppPin);
 431
 432     /* FIXME: critical section */
 433
 434     return E_NOTIMPL;
 435 }
 436
 437 HRESULT WINAPI Parser_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
 438 {
 439     ParserImpl *This = (ParserImpl *)iface;
 440
 441     TRACE("(%p)\n", pInfo);
 442
 443     strcpyW(pInfo->achName, This->filterInfo.achName);
 444     pInfo->pGraph = This->filterInfo.pGraph;
 445
 446     if (pInfo->pGraph)
 447         IFilterGraph_AddRef(pInfo->pGraph);
 448
 449     return S_OK;
 450 }
 451
 452 HRESULT WINAPI Parser_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
 453 {
 454     HRESULT hr = S_OK;
 455     ParserImpl *This = (ParserImpl *)iface;
 456
 457     TRACE("(%p, %s)\n", pGraph, debugstr_w(pName));
 458
 459     EnterCriticalSection(&This->csFilter);
 460     {
 461         if (pName)
 462             strcpyW(This->filterInfo.achName, pName);
 463         else
 464             *This->filterInfo.achName = '\0';
 465         This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
 466     }
 467     LeaveCriticalSection(&This->csFilter);
 468
 469     return hr;
 470 }
 471
 472 HRESULT WINAPI Parser_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
 473 {
 474     TRACE("(%p)\n", pVendorInfo);
 475     return E_NOTIMPL;
 476 }
 477
 478 HRESULT Parser_AddPin(ParserImpl * This, const PIN_INFO * piOutput, ALLOCATOR_PROPERTIES * props, const AM_MEDIA_TYPE * amt)
 479 {
 480     IPin ** ppOldPins;
 481     HRESULT hr;
 482
 483     ppOldPins = This->ppPins;
 484
 485     This->ppPins = CoTaskMemAlloc((This->cStreams + 2) * sizeof(IPin *));
 486     memcpy(This->ppPins, ppOldPins, (This->cStreams + 1) * sizeof(IPin *));
 487
 488     hr = OutputPin_Construct(&Parser_OutputPin_Vtbl, sizeof(Parser_OutputPin), piOutput, props, NULL, Parser_OutputPin_QueryAccept, &This->csFilter, This->ppPins + (This->cStreams + 1));
 489
 490     if (SUCCEEDED(hr))
 491     {
 492         IPin *pPin = This->ppPins[This->cStreams + 1];
 493         Parser_OutputPin *pin = (Parser_OutputPin *)pPin;
 494         pin->pmt = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 495         CopyMediaType(pin->pmt, amt);
 496         pin->dwSamplesProcessed = 0;
 497
 498         pin->pin.pin.pUserData = (LPVOID)This->ppPins[This->cStreams + 1];
 499         pin->pin.pin.pinInfo.pFilter = (LPVOID)This;
 500         pin->pin.custom_allocator = 1;
 501         This->cStreams++;
 502         This->lastpinchange = GetTickCount();
 503         CoTaskMemFree(ppOldPins);
 504     }
 505     else
 506     {
 507         CoTaskMemFree(This->ppPins);
 508         This->ppPins = ppOldPins;
 509         ERR("Failed with error %x\n", hr);
 510     }
 511
 512     return hr;
 513 }
 514
 515 static HRESULT Parser_RemoveOutputPins(ParserImpl * This)
 516 {
 517     /* NOTE: should be in critical section when calling this function */
 518     HRESULT hr;
 519     ULONG i;
 520     IPin ** ppOldPins = This->ppPins;
 521
 522     TRACE("(%p)\n", This);
 523
 524     /* reduce the pin array down to 1 (just our input pin) */
 525     This->ppPins = CoTaskMemAlloc(sizeof(IPin *) * 1);
 526     memcpy(This->ppPins, ppOldPins, sizeof(IPin *) * 1);
 527
 528     for (i = 0; i < This->cStreams; i++)
 529     {
 530         hr = OutputPin_DeliverDisconnect((OutputPin *)ppOldPins[i + 1]);
 531         TRACE("Disconnect: %08x\n", hr);
 532         IPin_Release(ppOldPins[i + 1]);
 533     }
 534
 535     This->lastpinchange = GetTickCount();
 536     This->cStreams = 0;
 537     CoTaskMemFree(ppOldPins);
 538
 539     return S_OK;
 540 }
 541
 542 static HRESULT Parser_ChangeCurrent(IBaseFilter *iface)
 543 {
 544     FIXME("(%p) filter hasn't implemented current position change!\n", iface);
 545     return S_OK;
 546 }
 547
 548 static HRESULT Parser_ChangeStop(IBaseFilter *iface)
 549 {
 550     FIXME("(%p) filter hasn't implemented stop position change!\n", iface);
 551     return S_OK;
 552 }
 553
 554 static HRESULT Parser_ChangeRate(IBaseFilter *iface)
 555 {
 556     FIXME("(%p) filter hasn't implemented rate change!\n", iface);
 557     return S_OK;
 558 }
 559
 560
 561 static HRESULT WINAPI Parser_Seeking_QueryInterface(IMediaSeeking * iface, REFIID riid, LPVOID * ppv)
 562 {
 563     ParserImpl *This = impl_from_IMediaSeeking(iface);
 564
 565     return IUnknown_QueryInterface((IUnknown *)This, riid, ppv);
 566 }
 567
 568 static ULONG WINAPI Parser_Seeking_AddRef(IMediaSeeking * iface)
 569 {
 570     ParserImpl *This = impl_from_IMediaSeeking(iface);
 571
 572     return IUnknown_AddRef((IUnknown *)This);
 573 }
 574
 575 static ULONG WINAPI Parser_Seeking_Release(IMediaSeeking * iface)
 576 {
 577     ParserImpl *This = impl_from_IMediaSeeking(iface);
 578
 579     return IUnknown_Release((IUnknown *)This);
 580 }
 581
 582 static const IMediaSeekingVtbl Parser_Seeking_Vtbl =
 583 {
 584     Parser_Seeking_QueryInterface,
 585     Parser_Seeking_AddRef,
 586     Parser_Seeking_Release,
 587     MediaSeekingImpl_GetCapabilities,
 588     MediaSeekingImpl_CheckCapabilities,
 589     MediaSeekingImpl_IsFormatSupported,
 590     MediaSeekingImpl_QueryPreferredFormat,
 591     MediaSeekingImpl_GetTimeFormat,
 592     MediaSeekingImpl_IsUsingTimeFormat,
 593     MediaSeekingImpl_SetTimeFormat,
 594     MediaSeekingImpl_GetDuration,
 595     MediaSeekingImpl_GetStopPosition,
 596     MediaSeekingImpl_GetCurrentPosition,
 597     MediaSeekingImpl_ConvertTimeFormat,
 598     MediaSeekingImpl_SetPositions,
 599     MediaSeekingImpl_GetPositions,
 600     MediaSeekingImpl_GetAvailable,
 601     MediaSeekingImpl_SetRate,
 602     MediaSeekingImpl_GetRate,
 603     MediaSeekingImpl_GetPreroll
 604 };
 605
 606 static HRESULT WINAPI Parser_OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 607 {
 608     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 609
 610     TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
 611
 612     *ppv = NULL;
 613
 614     if (IsEqualIID(riid, &IID_IUnknown))
 615         *ppv = (LPVOID)iface;
 616     else if (IsEqualIID(riid, &IID_IPin))
 617         *ppv = (LPVOID)iface;
 618     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 619     {
 620         return IBaseFilter_QueryInterface(This->pin.pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
 621     }
 622
 623     if (*ppv)
 624     {
 625         IUnknown_AddRef((IUnknown *)(*ppv));
 626         return S_OK;
 627     }
 628
 629     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 630
 631     return E_NOINTERFACE;
 632 }
 633
 634 static ULONG WINAPI Parser_OutputPin_Release(IPin * iface)
 635 {
 636     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 637     ULONG refCount = InterlockedDecrement(&This->pin.pin.refCount);
 638
 639     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 640
 641     if (!refCount)
 642     {
 643         FreeMediaType(This->pmt);
 644         CoTaskMemFree(This->pmt);
 645         FreeMediaType(&This->pin.pin.mtCurrent);
 646         CoTaskMemFree(This);
 647         return 0;
 648     }
 649     return refCount;
 650 }
 651
 652 static HRESULT WINAPI Parser_OutputPin_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
 653 {
 654     ENUMMEDIADETAILS emd;
 655     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 656
 657     TRACE("(%p)\n", ppEnum);
 658
 659     /* override this method to allow enumeration of your types */
 660     emd.cMediaTypes = 1;
 661     emd.pMediaTypes = This->pmt;
 662
 663     return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
 664 }
 665
 666 static HRESULT WINAPI Parser_OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 667 {
 668     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 669     ParserImpl *parser = (ParserImpl *)This->pin.pin.pinInfo.pFilter;
 670
 671     /* Set the allocator to our input pin's */
 672     EnterCriticalSection(This->pin.pin.pCritSec);
 673     This->pin.alloc = parser->pInputPin->pAlloc;
 674     LeaveCriticalSection(This->pin.pin.pCritSec);
 675
 676     return OutputPin_Connect(iface, pReceivePin, pmt);
 677 }
 678
 679 static HRESULT Parser_OutputPin_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 680 {
 681     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 682
 683     TRACE("()\n");
 684     dump_AM_MEDIA_TYPE(pmt);
 685
 686     return (memcmp(This->pmt, pmt, sizeof(AM_MEDIA_TYPE)) == 0);
 687 }
 688
 689 static const IPinVtbl Parser_OutputPin_Vtbl =
 690 {
 691     Parser_OutputPin_QueryInterface,
 692     IPinImpl_AddRef,
 693     Parser_OutputPin_Release,
 694     Parser_OutputPin_Connect,
 695     OutputPin_ReceiveConnection,
 696     OutputPin_Disconnect,
 697     IPinImpl_ConnectedTo,
 698     IPinImpl_ConnectionMediaType,
 699     IPinImpl_QueryPinInfo,
 700     IPinImpl_QueryDirection,
 701     IPinImpl_QueryId,
 702     IPinImpl_QueryAccept,
 703     Parser_OutputPin_EnumMediaTypes,
 704     IPinImpl_QueryInternalConnections,
 705     OutputPin_EndOfStream,
 706     OutputPin_BeginFlush,
 707     OutputPin_EndFlush,
 708     OutputPin_NewSegment
 709 };
 710
 711 static HRESULT WINAPI Parser_PullPin_Disconnect(IPin * iface)
 712 {
 713     HRESULT hr;
 714     PullPin *This = (PullPin *)iface;
 715
 716     TRACE("()\n");
 717
 718     EnterCriticalSection(&This->thread_lock);
 719     EnterCriticalSection(This->pin.pCritSec);
 720     {
 721         if (This->pin.pConnectedTo)
 722         {
 723             FILTER_STATE state;
 724             ParserImpl *Parser = (ParserImpl *)This->pin.pinInfo.pFilter;
 725
 726             LeaveCriticalSection(This->pin.pCritSec);
 727             hr = IBaseFilter_GetState(This->pin.pinInfo.pFilter, INFINITE, &state);
 728             EnterCriticalSection(This->pin.pCritSec);
 729
 730             if (SUCCEEDED(hr) && (state == State_Stopped) && SUCCEEDED(Parser->fnDisconnect(Parser)))
 731             {
 732                 LeaveCriticalSection(This->pin.pCritSec);
 733                 PullPin_Disconnect(iface);
 734                 EnterCriticalSection(This->pin.pCritSec);
 735                 hr = Parser_RemoveOutputPins((ParserImpl *)This->pin.pinInfo.pFilter);
 736             }
 737             else
 738                 hr = VFW_E_NOT_STOPPED;
 739         }
 740         else
 741             hr = S_FALSE;
 742     }
 743     LeaveCriticalSection(This->pin.pCritSec);
 744     LeaveCriticalSection(&This->thread_lock);
 745
 746     return hr;
 747 }
 748
 749 HRESULT WINAPI Parser_PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 750 {
 751     HRESULT hr;
 752
 753     TRACE("()\n");
 754
 755     hr = PullPin_ReceiveConnection(iface, pReceivePin, pmt);
 756     if (FAILED(hr))
 757     {
 758         IPinImpl *This = (IPinImpl *)iface;
 759
 760         EnterCriticalSection(This->pCritSec);
 761         Parser_RemoveOutputPins((ParserImpl *)This->pinInfo.pFilter);
 762         LeaveCriticalSection(This->pCritSec);
 763     }
 764
 765     return hr;
 766 }
 767
 768 static const IPinVtbl Parser_InputPin_Vtbl =
 769 {
 770     PullPin_QueryInterface,
 771     IPinImpl_AddRef,
 772     PullPin_Release,
 773     InputPin_Connect,
 774     Parser_PullPin_ReceiveConnection,
 775     Parser_PullPin_Disconnect,
 776     IPinImpl_ConnectedTo,
 777     IPinImpl_ConnectionMediaType,
 778     IPinImpl_QueryPinInfo,
 779     IPinImpl_QueryDirection,
 780     IPinImpl_QueryId,
 781     IPinImpl_QueryAccept,
 782     IPinImpl_EnumMediaTypes,
 783     IPinImpl_QueryInternalConnections,
 784     PullPin_EndOfStream,
 785     PullPin_BeginFlush,
 786     PullPin_EndFlush,
 787     PullPin_NewSegment
 788 };