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 = This;
 119     else if (IsEqualIID(riid, &IID_IPersist))
 120         *ppv = This;
 121     else if (IsEqualIID(riid, &IID_IMediaFilter))
 122         *ppv = This;
 123     else if (IsEqualIID(riid, &IID_IBaseFilter))
 124         *ppv = This;
 125     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 126         *ppv = &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     ULONG 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         IAsyncReader_EndFlush(This->pInputPin->pReader);
 235         LeaveCriticalSection(&pin->thread_lock);
 236         return S_OK;
 237     }
 238
 239     This->state = State_Stopped;
 240
 241     for (i = 1; i < (This->cStreams + 1); i++)
 242     {
 243         OutputPin_DecommitAllocator((OutputPin *)This->ppPins[i]);
 244     }
 245
 246     LeaveCriticalSection(&This->csFilter);
 247
 248     PullPin_PauseProcessing(This->pInputPin);
 249     PullPin_WaitForStateChange(This->pInputPin, INFINITE);
 250     IAsyncReader_EndFlush(This->pInputPin->pReader);
 251
 252     LeaveCriticalSection(&pin->thread_lock);
 253     return S_OK;
 254 }
 255
 256 HRESULT WINAPI Parser_Pause(IBaseFilter * iface)
 257 {
 258     HRESULT hr = S_OK;
 259     ParserImpl *This = (ParserImpl *)iface;
 260     PullPin *pin = (PullPin *)This->ppPins[0];
 261
 262     TRACE("()\n");
 263
 264     EnterCriticalSection(&pin->thread_lock);
 265     EnterCriticalSection(&This->csFilter);
 266
 267     if (This->state == State_Paused)
 268     {
 269         LeaveCriticalSection(&This->csFilter);
 270         LeaveCriticalSection(&pin->thread_lock);
 271         return S_OK;
 272     }
 273
 274     if (This->state == State_Stopped)
 275     {
 276         LeaveCriticalSection(&This->csFilter);
 277         hr = IBaseFilter_Run(iface, -1);
 278         EnterCriticalSection(&This->csFilter);
 279     }
 280
 281     if (SUCCEEDED(hr))
 282         This->state = State_Paused;
 283
 284     LeaveCriticalSection(&This->csFilter);
 285     LeaveCriticalSection(&pin->thread_lock);
 286
 287     return hr;
 288 }
 289
 290 HRESULT WINAPI Parser_Run(IBaseFilter * iface, REFERENCE_TIME tStart)
 291 {
 292     HRESULT hr = S_OK;
 293     ParserImpl *This = (ParserImpl *)iface;
 294     PullPin *pin = (PullPin *)This->ppPins[0];
 295
 296     ULONG i;
 297
 298     TRACE("(%s)\n", wine_dbgstr_longlong(tStart));
 299
 300     EnterCriticalSection(&pin->thread_lock);
 301     EnterCriticalSection(&This->csFilter);
 302     {
 303         HRESULT hr_any = VFW_E_NOT_CONNECTED;
 304
 305         if (This->state == State_Running || This->state == State_Paused)
 306         {
 307             This->state = State_Running;
 308             LeaveCriticalSection(&This->csFilter);
 309             LeaveCriticalSection(&pin->thread_lock);
 310             return S_OK;
 311         }
 312
 313         This->rtStreamStart = tStart;
 314
 315         for (i = 1; i < (This->cStreams + 1); i++)
 316         {
 317             hr = OutputPin_CommitAllocator((OutputPin *)This->ppPins[i]);
 318             if (SUCCEEDED(hr))
 319                 hr_any = hr;
 320         }
 321
 322         hr = hr_any;
 323         if (SUCCEEDED(hr))
 324         {
 325             LeaveCriticalSection(&This->csFilter);
 326             hr = PullPin_StartProcessing(This->pInputPin);
 327             EnterCriticalSection(&This->csFilter);
 328         }
 329
 330         if (SUCCEEDED(hr))
 331             This->state = State_Running;
 332     }
 333     LeaveCriticalSection(&This->csFilter);
 334     LeaveCriticalSection(&pin->thread_lock);
 335
 336     return hr;
 337 }
 338
 339 HRESULT WINAPI Parser_GetState(IBaseFilter * iface, DWORD dwMilliSecsTimeout, FILTER_STATE *pState)
 340 {
 341     ParserImpl *This = (ParserImpl *)iface;
 342     PullPin *pin = (PullPin *)This->ppPins[0];
 343     HRESULT hr = S_OK;
 344
 345     TRACE("(%d, %p)\n", dwMilliSecsTimeout, pState);
 346
 347     EnterCriticalSection(&pin->thread_lock);
 348     EnterCriticalSection(&This->csFilter);
 349     {
 350         *pState = This->state;
 351     }
 352     LeaveCriticalSection(&This->csFilter);
 353
 354     if (This->pInputPin && (PullPin_WaitForStateChange(This->pInputPin, dwMilliSecsTimeout) == S_FALSE))
 355         hr = VFW_S_STATE_INTERMEDIATE;
 356     LeaveCriticalSection(&pin->thread_lock);
 357
 358     return hr;
 359 }
 360
 361 HRESULT WINAPI Parser_SetSyncSource(IBaseFilter * iface, IReferenceClock *pClock)
 362 {
 363     ParserImpl *This = (ParserImpl *)iface;
 364     PullPin *pin = (PullPin *)This->ppPins[0];
 365
 366     TRACE("(%p)\n", pClock);
 367
 368     EnterCriticalSection(&pin->thread_lock);
 369     EnterCriticalSection(&This->csFilter);
 370     {
 371         if (This->pClock)
 372             IReferenceClock_Release(This->pClock);
 373         This->pClock = pClock;
 374         if (This->pClock)
 375             IReferenceClock_AddRef(This->pClock);
 376     }
 377     LeaveCriticalSection(&This->csFilter);
 378     LeaveCriticalSection(&pin->thread_lock);
 379
 380     return S_OK;
 381 }
 382
 383 HRESULT WINAPI Parser_GetSyncSource(IBaseFilter * iface, IReferenceClock **ppClock)
 384 {
 385     ParserImpl *This = (ParserImpl *)iface;
 386
 387     TRACE("(%p)\n", ppClock);
 388
 389     EnterCriticalSection(&This->csFilter);
 390     {
 391         *ppClock = This->pClock;
 392         if (This->pClock)
 393             IReferenceClock_AddRef(This->pClock);
 394     }
 395     LeaveCriticalSection(&This->csFilter);
 396
 397     return S_OK;
 398 }
 399
 400 /** IBaseFilter implementation **/
 401
 402 /* FIXME: WRONG */
 403 static HRESULT Parser_GetPin(IBaseFilter *iface, ULONG pos, IPin **pin, DWORD *lastsynctick)
 404 {
 405     ParserImpl *This = (ParserImpl *)iface;
 406
 407     *lastsynctick = This->lastpinchange;
 408
 409     TRACE("Asking for pos %x\n", pos);
 410
 411     /* Input pin also has a pin, hence the > and not >= */
 412     if (pos > This->cStreams)
 413         return S_FALSE;
 414
 415     *pin = This->ppPins[pos];
 416     IPin_AddRef(*pin);
 417     return S_OK;
 418 }
 419
 420 HRESULT WINAPI Parser_EnumPins(IBaseFilter * iface, IEnumPins **ppEnum)
 421 {
 422     ParserImpl *This = (ParserImpl *)iface;
 423
 424     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 425
 426     return IEnumPinsImpl_Construct(ppEnum, Parser_GetPin, iface);
 427 }
 428
 429 HRESULT WINAPI Parser_FindPin(IBaseFilter * iface, LPCWSTR Id, IPin **ppPin)
 430 {
 431     FIXME("(%p)->(%s,%p)\n", iface, debugstr_w(Id), ppPin);
 432
 433     /* FIXME: critical section */
 434
 435     return E_NOTIMPL;
 436 }
 437
 438 HRESULT WINAPI Parser_QueryFilterInfo(IBaseFilter * iface, FILTER_INFO *pInfo)
 439 {
 440     ParserImpl *This = (ParserImpl *)iface;
 441
 442     TRACE("(%p)\n", pInfo);
 443
 444     strcpyW(pInfo->achName, This->filterInfo.achName);
 445     pInfo->pGraph = This->filterInfo.pGraph;
 446
 447     if (pInfo->pGraph)
 448         IFilterGraph_AddRef(pInfo->pGraph);
 449
 450     return S_OK;
 451 }
 452
 453 HRESULT WINAPI Parser_JoinFilterGraph(IBaseFilter * iface, IFilterGraph *pGraph, LPCWSTR pName)
 454 {
 455     HRESULT hr = S_OK;
 456     ParserImpl *This = (ParserImpl *)iface;
 457
 458     TRACE("(%p, %s)\n", pGraph, debugstr_w(pName));
 459
 460     EnterCriticalSection(&This->csFilter);
 461     {
 462         if (pName)
 463             strcpyW(This->filterInfo.achName, pName);
 464         else
 465             *This->filterInfo.achName = '\0';
 466         This->filterInfo.pGraph = pGraph; /* NOTE: do NOT increase ref. count */
 467     }
 468     LeaveCriticalSection(&This->csFilter);
 469
 470     return hr;
 471 }
 472
 473 HRESULT WINAPI Parser_QueryVendorInfo(IBaseFilter * iface, LPWSTR *pVendorInfo)
 474 {
 475     TRACE("(%p)\n", pVendorInfo);
 476     return E_NOTIMPL;
 477 }
 478
 479 HRESULT Parser_AddPin(ParserImpl * This, const PIN_INFO * piOutput, ALLOCATOR_PROPERTIES * props, const AM_MEDIA_TYPE * amt)
 480 {
 481     IPin ** ppOldPins;
 482     HRESULT hr;
 483
 484     ppOldPins = This->ppPins;
 485
 486     This->ppPins = CoTaskMemAlloc((This->cStreams + 2) * sizeof(IPin *));
 487     memcpy(This->ppPins, ppOldPins, (This->cStreams + 1) * sizeof(IPin *));
 488
 489     hr = OutputPin_Construct(&Parser_OutputPin_Vtbl, sizeof(Parser_OutputPin), piOutput, props, NULL, Parser_OutputPin_QueryAccept, &This->csFilter, This->ppPins + (This->cStreams + 1));
 490
 491     if (SUCCEEDED(hr))
 492     {
 493         IPin *pPin = This->ppPins[This->cStreams + 1];
 494         Parser_OutputPin *pin = (Parser_OutputPin *)pPin;
 495         pin->pmt = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 496         CopyMediaType(pin->pmt, amt);
 497         pin->dwSamplesProcessed = 0;
 498
 499         pin->pin.pin.pUserData = This->ppPins[This->cStreams + 1];
 500         pin->pin.pin.pinInfo.pFilter = (LPVOID)This;
 501         pin->pin.custom_allocator = 1;
 502         This->cStreams++;
 503         This->lastpinchange = GetTickCount();
 504         CoTaskMemFree(ppOldPins);
 505     }
 506     else
 507     {
 508         CoTaskMemFree(This->ppPins);
 509         This->ppPins = ppOldPins;
 510         ERR("Failed with error %x\n", hr);
 511     }
 512
 513     return hr;
 514 }
 515
 516 static HRESULT Parser_RemoveOutputPins(ParserImpl * This)
 517 {
 518     /* NOTE: should be in critical section when calling this function */
 519     HRESULT hr;
 520     ULONG i;
 521     IPin ** ppOldPins = This->ppPins;
 522
 523     TRACE("(%p)\n", This);
 524
 525     /* reduce the pin array down to 1 (just our input pin) */
 526     This->ppPins = CoTaskMemAlloc(sizeof(IPin *) * 1);
 527     memcpy(This->ppPins, ppOldPins, sizeof(IPin *) * 1);
 528
 529     for (i = 0; i < This->cStreams; i++)
 530     {
 531         hr = OutputPin_DeliverDisconnect((OutputPin *)ppOldPins[i + 1]);
 532         TRACE("Disconnect: %08x\n", hr);
 533         IPin_Release(ppOldPins[i + 1]);
 534     }
 535
 536     This->lastpinchange = GetTickCount();
 537     This->cStreams = 0;
 538     CoTaskMemFree(ppOldPins);
 539
 540     return S_OK;
 541 }
 542
 543 static HRESULT Parser_ChangeCurrent(IBaseFilter *iface)
 544 {
 545     FIXME("(%p) filter hasn't implemented current position change!\n", iface);
 546     return S_OK;
 547 }
 548
 549 static HRESULT Parser_ChangeStop(IBaseFilter *iface)
 550 {
 551     FIXME("(%p) filter hasn't implemented stop position change!\n", iface);
 552     return S_OK;
 553 }
 554
 555 static HRESULT Parser_ChangeRate(IBaseFilter *iface)
 556 {
 557     FIXME("(%p) filter hasn't implemented rate change!\n", iface);
 558     return S_OK;
 559 }
 560
 561
 562 static HRESULT WINAPI Parser_Seeking_QueryInterface(IMediaSeeking * iface, REFIID riid, LPVOID * ppv)
 563 {
 564     ParserImpl *This = impl_from_IMediaSeeking(iface);
 565
 566     return IUnknown_QueryInterface((IUnknown *)This, riid, ppv);
 567 }
 568
 569 static ULONG WINAPI Parser_Seeking_AddRef(IMediaSeeking * iface)
 570 {
 571     ParserImpl *This = impl_from_IMediaSeeking(iface);
 572
 573     return IUnknown_AddRef((IUnknown *)This);
 574 }
 575
 576 static ULONG WINAPI Parser_Seeking_Release(IMediaSeeking * iface)
 577 {
 578     ParserImpl *This = impl_from_IMediaSeeking(iface);
 579
 580     return IUnknown_Release((IUnknown *)This);
 581 }
 582
 583 static const IMediaSeekingVtbl Parser_Seeking_Vtbl =
 584 {
 585     Parser_Seeking_QueryInterface,
 586     Parser_Seeking_AddRef,
 587     Parser_Seeking_Release,
 588     MediaSeekingImpl_GetCapabilities,
 589     MediaSeekingImpl_CheckCapabilities,
 590     MediaSeekingImpl_IsFormatSupported,
 591     MediaSeekingImpl_QueryPreferredFormat,
 592     MediaSeekingImpl_GetTimeFormat,
 593     MediaSeekingImpl_IsUsingTimeFormat,
 594     MediaSeekingImpl_SetTimeFormat,
 595     MediaSeekingImpl_GetDuration,
 596     MediaSeekingImpl_GetStopPosition,
 597     MediaSeekingImpl_GetCurrentPosition,
 598     MediaSeekingImpl_ConvertTimeFormat,
 599     MediaSeekingImpl_SetPositions,
 600     MediaSeekingImpl_GetPositions,
 601     MediaSeekingImpl_GetAvailable,
 602     MediaSeekingImpl_SetRate,
 603     MediaSeekingImpl_GetRate,
 604     MediaSeekingImpl_GetPreroll
 605 };
 606
 607 static HRESULT WINAPI Parser_OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 608 {
 609     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 610
 611     TRACE("(%s, %p)\n", qzdebugstr_guid(riid), ppv);
 612
 613     *ppv = NULL;
 614
 615     if (IsEqualIID(riid, &IID_IUnknown))
 616         *ppv = iface;
 617     else if (IsEqualIID(riid, &IID_IPin))
 618         *ppv = iface;
 619     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 620     {
 621         return IBaseFilter_QueryInterface(This->pin.pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
 622     }
 623
 624     if (*ppv)
 625     {
 626         IUnknown_AddRef((IUnknown *)(*ppv));
 627         return S_OK;
 628     }
 629
 630     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 631
 632     return E_NOINTERFACE;
 633 }
 634
 635 static ULONG WINAPI Parser_OutputPin_Release(IPin * iface)
 636 {
 637     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 638     ULONG refCount = InterlockedDecrement(&This->pin.pin.refCount);
 639
 640     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 641
 642     if (!refCount)
 643     {
 644         FreeMediaType(This->pmt);
 645         CoTaskMemFree(This->pmt);
 646         FreeMediaType(&This->pin.pin.mtCurrent);
 647         CoTaskMemFree(This);
 648         return 0;
 649     }
 650     return refCount;
 651 }
 652
 653 static HRESULT WINAPI Parser_OutputPin_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
 654 {
 655     ENUMMEDIADETAILS emd;
 656     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 657
 658     TRACE("(%p)\n", ppEnum);
 659
 660     /* override this method to allow enumeration of your types */
 661     emd.cMediaTypes = 1;
 662     emd.pMediaTypes = This->pmt;
 663
 664     return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
 665 }
 666
 667 static HRESULT WINAPI Parser_OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 668 {
 669     Parser_OutputPin *This = (Parser_OutputPin *)iface;
 670     ParserImpl *parser = (ParserImpl *)This->pin.pin.pinInfo.pFilter;
 671
 672     /* Set the allocator to our input pin's */
 673     EnterCriticalSection(This->pin.pin.pCritSec);
 674     This->pin.alloc = parser->pInputPin->pAlloc;
 675     LeaveCriticalSection(This->pin.pin.pCritSec);
 676
 677     return OutputPin_Connect(iface, pReceivePin, pmt);
 678 }
 679
 680 static HRESULT Parser_OutputPin_QueryAccept(LPVOID iface, const AM_MEDIA_TYPE * pmt)
 681 {
 682     Parser_OutputPin *This = iface;
 683
 684     TRACE("()\n");
 685     dump_AM_MEDIA_TYPE(pmt);
 686
 687     return (memcmp(This->pmt, pmt, sizeof(AM_MEDIA_TYPE)) == 0);
 688 }
 689
 690 static const IPinVtbl Parser_OutputPin_Vtbl =
 691 {
 692     Parser_OutputPin_QueryInterface,
 693     IPinImpl_AddRef,
 694     Parser_OutputPin_Release,
 695     Parser_OutputPin_Connect,
 696     OutputPin_ReceiveConnection,
 697     OutputPin_Disconnect,
 698     IPinImpl_ConnectedTo,
 699     IPinImpl_ConnectionMediaType,
 700     IPinImpl_QueryPinInfo,
 701     IPinImpl_QueryDirection,
 702     IPinImpl_QueryId,
 703     IPinImpl_QueryAccept,
 704     Parser_OutputPin_EnumMediaTypes,
 705     IPinImpl_QueryInternalConnections,
 706     OutputPin_EndOfStream,
 707     OutputPin_BeginFlush,
 708     OutputPin_EndFlush,
 709     OutputPin_NewSegment
 710 };
 711
 712 static HRESULT WINAPI Parser_PullPin_Disconnect(IPin * iface)
 713 {
 714     HRESULT hr;
 715     PullPin *This = (PullPin *)iface;
 716
 717     TRACE("()\n");
 718
 719     EnterCriticalSection(&This->thread_lock);
 720     EnterCriticalSection(This->pin.pCritSec);
 721     {
 722         if (This->pin.pConnectedTo)
 723         {
 724             FILTER_STATE state;
 725             ParserImpl *Parser = (ParserImpl *)This->pin.pinInfo.pFilter;
 726
 727             LeaveCriticalSection(This->pin.pCritSec);
 728             hr = IBaseFilter_GetState(This->pin.pinInfo.pFilter, INFINITE, &state);
 729             EnterCriticalSection(This->pin.pCritSec);
 730
 731             if (SUCCEEDED(hr) && (state == State_Stopped) && SUCCEEDED(Parser->fnDisconnect(Parser)))
 732             {
 733                 LeaveCriticalSection(This->pin.pCritSec);
 734                 PullPin_Disconnect(iface);
 735                 EnterCriticalSection(This->pin.pCritSec);
 736                 hr = Parser_RemoveOutputPins((ParserImpl *)This->pin.pinInfo.pFilter);
 737             }
 738             else
 739                 hr = VFW_E_NOT_STOPPED;
 740         }
 741         else
 742             hr = S_FALSE;
 743     }
 744     LeaveCriticalSection(This->pin.pCritSec);
 745     LeaveCriticalSection(&This->thread_lock);
 746
 747     return hr;
 748 }
 749
 750 static HRESULT WINAPI Parser_PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 751 {
 752     HRESULT hr;
 753
 754     TRACE("()\n");
 755
 756     hr = PullPin_ReceiveConnection(iface, pReceivePin, pmt);
 757     if (FAILED(hr))
 758     {
 759         IPinImpl *This = (IPinImpl *)iface;
 760
 761         EnterCriticalSection(This->pCritSec);
 762         Parser_RemoveOutputPins((ParserImpl *)This->pinInfo.pFilter);
 763         LeaveCriticalSection(This->pCritSec);
 764     }
 765
 766     return hr;
 767 }
 768
 769 static const IPinVtbl Parser_InputPin_Vtbl =
 770 {
 771     PullPin_QueryInterface,
 772     IPinImpl_AddRef,
 773     PullPin_Release,
 774     InputPin_Connect,
 775     Parser_PullPin_ReceiveConnection,
 776     Parser_PullPin_Disconnect,
 777     IPinImpl_ConnectedTo,
 778     IPinImpl_ConnectionMediaType,
 779     IPinImpl_QueryPinInfo,
 780     IPinImpl_QueryDirection,
 781     IPinImpl_QueryId,
 782     IPinImpl_QueryAccept,
 783     IPinImpl_EnumMediaTypes,
 784     IPinImpl_QueryInternalConnections,
 785     PullPin_EndOfStream,
 786     PullPin_BeginFlush,
 787     PullPin_EndFlush,
 788     PullPin_NewSegment
 789 };