git.oblomov.eu Git - wine/blob - 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)*(boundary))
  38 #define ALIGNUP(value,boundary) (ALIGNDOWN((value)+(boundary)-1, (boundary)))
  39
  40 typedef HRESULT (*SendPinFunc)( IPin *to, LPVOID arg );
  41
  42 /** Helper function, there are a lot of places where the error code is inherited
  43  * The following rules apply:
  44  *
  45  * Return the first received error code (E_NOTIMPL is ignored)
  46  * If no errors occur: return the first received non-error-code that isn't S_OK
  47  */
  48 HRESULT updatehres( HRESULT original, HRESULT new )
  49 {
  50     if (FAILED( original ) || new == E_NOTIMPL)
  51         return original;
  52
  53     if (FAILED( new ) || original == S_OK)
  54         return new;
  55
  56     return original;
  57 }
  58
  59 /** Sends a message from a pin further to other, similar pins
  60  * fnMiddle is called on each pin found further on the stream.
  61  * fnEnd (can be NULL) is called when the message can't be sent any further (this is a renderer or source)
  62  *
  63  * If the pin given is an input pin, the message will be sent downstream to other input pins
  64  * If the pin given is an output pin, the message will be sent upstream to other output pins
  65  */
  66 static HRESULT SendFurther( IPin *from, SendPinFunc fnMiddle, LPVOID arg, SendPinFunc fnEnd )
  67 {
  68     PIN_INFO pin_info;
  69     ULONG amount = 0;
  70     HRESULT hr = S_OK;
  71     HRESULT hr_return = S_OK;
  72     IEnumPins *enumpins = NULL;
  73     BOOL foundend = TRUE;
  74     PIN_DIRECTION from_dir;
  75
  76     IPin_QueryDirection( from, &from_dir );
  77
  78     hr = IPin_QueryInternalConnections( from, NULL, &amount );
  79     if (hr != E_NOTIMPL && amount)
  80         FIXME("Use QueryInternalConnections!\n");
  81      hr = S_OK;
  82
  83     pin_info.pFilter = NULL;
  84     hr = IPin_QueryPinInfo( from, &pin_info );
  85     if (FAILED(hr))
  86         goto out;
  87
  88     hr = IBaseFilter_EnumPins( pin_info.pFilter, &enumpins );
  89     if (FAILED(hr))
  90         goto out;
  91
  92     hr = IEnumPins_Reset( enumpins );
  93     while (hr == S_OK) {
  94         IPin *pin = NULL;
  95         hr = IEnumPins_Next( enumpins, 1, &pin, NULL );
  96         if (hr == VFW_E_ENUM_OUT_OF_SYNC)
  97         {
  98             hr = IEnumPins_Reset( enumpins );
  99             continue;
 100         }
 101         if (pin)
 102         {
 103             PIN_DIRECTION dir;
 104
 105             IPin_QueryDirection( pin, &dir );
 106             if (dir != from_dir)
 107             {
 108                 IPin *connected = NULL;
 109
 110                 foundend = FALSE;
 111                 IPin_ConnectedTo( pin, &connected );
 112                 if (connected)
 113                 {
 114                     HRESULT hr_local;
 115
 116                     hr_local = fnMiddle( connected, arg );
 117                     hr_return = updatehres( hr_return, hr_local );
 118                     IPin_Release(connected);
 119                 }
 120             }
 121             IPin_Release( pin );
 122         }
 123         else
 124         {
 125             hr = S_OK;
 126             break;
 127         }
 128     }
 129
 130     if (!foundend)
 131         hr = hr_return;
 132     else if (fnEnd) {
 133         HRESULT hr_local;
 134
 135         hr_local = fnEnd( from, arg );
 136         hr_return = updatehres( hr_return, hr_local );
 137     }
 138
 139 out:
 140     if (pin_info.pFilter)
 141         IBaseFilter_Release( pin_info.pFilter );
 142     return hr;
 143 }
 144
 145 static inline InputPin *impl_from_IMemInputPin( IMemInputPin *iface )
 146 {
 147     return (InputPin *)((char*)iface - FIELD_OFFSET(InputPin, lpVtblMemInput));
 148 }
 149
 150
 151 static void Copy_PinInfo(PIN_INFO * pDest, const PIN_INFO * pSrc)
 152 {
 153     /* Tempting to just do a memcpy, but the name field is
 154        128 characters long! We will probably never exceed 10
 155        most of the time, so we are better off copying
 156        each field manually */
 157     strcpyW(pDest->achName, pSrc->achName);
 158     pDest->dir = pSrc->dir;
 159     pDest->pFilter = pSrc->pFilter;
 160 }
 161
 162 /* Function called as a helper to IPin_Connect */
 163 /* specific AM_MEDIA_TYPE - it cannot be NULL */
 164 /* NOTE: not part of standard interface */
 165 static HRESULT OutputPin_ConnectSpecific(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 166 {
 167     OutputPin *This = (OutputPin *)iface;
 168     HRESULT hr;
 169     IMemAllocator * pMemAlloc = NULL;
 170     ALLOCATOR_PROPERTIES actual; /* FIXME: should we put the actual props back in to This? */
 171
 172     TRACE("(%p, %p)\n", pReceivePin, pmt);
 173     dump_AM_MEDIA_TYPE(pmt);
 174
 175     /* FIXME: call queryacceptproc */
 176
 177     This->pin.pConnectedTo = pReceivePin;
 178     IPin_AddRef(pReceivePin);
 179     CopyMediaType(&This->pin.mtCurrent, pmt);
 180
 181     hr = IPin_ReceiveConnection(pReceivePin, iface, pmt);
 182
 183     /* get the IMemInputPin interface we will use to deliver samples to the
 184      * connected pin */
 185     if (SUCCEEDED(hr))
 186     {
 187         This->pMemInputPin = NULL;
 188         hr = IPin_QueryInterface(pReceivePin, &IID_IMemInputPin, (LPVOID)&This->pMemInputPin);
 189
 190         if (SUCCEEDED(hr) && !This->custom_allocator)
 191         {
 192             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pMemAlloc);
 193
 194             if (hr == VFW_E_NO_ALLOCATOR)
 195             {
 196                 /* Input pin provides no allocator, use standard memory allocator */
 197                 hr = CoCreateInstance(&CLSID_MemoryAllocator, NULL, CLSCTX_INPROC_SERVER, &IID_IMemAllocator, (LPVOID*)&pMemAlloc);
 198
 199                 if (SUCCEEDED(hr))
 200                 {
 201                     hr = IMemInputPin_NotifyAllocator(This->pMemInputPin, pMemAlloc, This->readonly);
 202                 }
 203             }
 204
 205             if (SUCCEEDED(hr))
 206                 hr = IMemAllocator_SetProperties(pMemAlloc, &This->allocProps, &actual);
 207
 208             if (pMemAlloc)
 209                 IMemAllocator_Release(pMemAlloc);
 210         }
 211         else if (SUCCEEDED(hr))
 212         {
 213             if (This->alloc)
 214             {
 215                 hr = IMemInputPin_NotifyAllocator(This->pMemInputPin, This->alloc, This->readonly);
 216             }
 217             else
 218                 hr = VFW_E_NO_ALLOCATOR;
 219         }
 220
 221         /* break connection if we couldn't get the allocator */
 222         if (FAILED(hr))
 223         {
 224             if (This->pMemInputPin)
 225                 IMemInputPin_Release(This->pMemInputPin);
 226             This->pMemInputPin = NULL;
 227
 228             IPin_Disconnect(pReceivePin);
 229         }
 230     }
 231
 232     if (FAILED(hr))
 233     {
 234         IPin_Release(This->pin.pConnectedTo);
 235         This->pin.pConnectedTo = NULL;
 236         FreeMediaType(&This->pin.mtCurrent);
 237     }
 238
 239     TRACE(" -- %x\n", hr);
 240     return hr;
 241 }
 242
 243 static HRESULT InputPin_Init(const IPinVtbl *InputPin_Vtbl, const PIN_INFO * pPinInfo, SAMPLEPROC_PUSH pSampleProc, LPVOID pUserData,
 244                              QUERYACCEPTPROC pQueryAccept, CLEANUPPROC pCleanUp, LPCRITICAL_SECTION pCritSec, IMemAllocator *allocator, InputPin * pPinImpl)
 245 {
 246     TRACE("\n");
 247
 248     /* Common attributes */
 249     pPinImpl->pin.refCount = 1;
 250     pPinImpl->pin.pConnectedTo = NULL;
 251     pPinImpl->pin.fnQueryAccept = pQueryAccept;
 252     pPinImpl->pin.pUserData = pUserData;
 253     pPinImpl->pin.pCritSec = pCritSec;
 254     Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
 255     ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
 256
 257     /* Input pin attributes */
 258     pPinImpl->fnSampleProc = pSampleProc;
 259     pPinImpl->fnCleanProc = pCleanUp;
 260     pPinImpl->pAllocator = pPinImpl->preferred_allocator = allocator;
 261     if (pPinImpl->preferred_allocator)
 262         IMemAllocator_AddRef(pPinImpl->preferred_allocator);
 263     pPinImpl->tStart = 0;
 264     pPinImpl->tStop = 0;
 265     pPinImpl->dRate = 1.0;
 266     pPinImpl->pin.lpVtbl = InputPin_Vtbl;
 267     pPinImpl->lpVtblMemInput = &MemInputPin_Vtbl;
 268     pPinImpl->flushing = pPinImpl->end_of_stream = 0;
 269
 270     return S_OK;
 271 }
 272
 273 static HRESULT OutputPin_Init(const IPinVtbl *OutputPin_Vtbl, const PIN_INFO * pPinInfo, const ALLOCATOR_PROPERTIES * props, LPVOID pUserData,
 274                               QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, OutputPin * pPinImpl)
 275 {
 276     TRACE("\n");
 277
 278     /* Common attributes */
 279     pPinImpl->pin.lpVtbl = OutputPin_Vtbl;
 280     pPinImpl->pin.refCount = 1;
 281     pPinImpl->pin.pConnectedTo = NULL;
 282     pPinImpl->pin.fnQueryAccept = pQueryAccept;
 283     pPinImpl->pin.pUserData = pUserData;
 284     pPinImpl->pin.pCritSec = pCritSec;
 285     Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
 286     ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
 287
 288     /* Output pin attributes */
 289     pPinImpl->pMemInputPin = NULL;
 290     pPinImpl->pConnectSpecific = OutputPin_ConnectSpecific;
 291     /* If custom_allocator is set, you will need to specify an allocator
 292      * in the alloc member of the struct before an output pin can connect
 293      */
 294     pPinImpl->custom_allocator = 0;
 295     pPinImpl->alloc = NULL;
 296     pPinImpl->readonly = FALSE;
 297     if (props)
 298     {
 299         pPinImpl->allocProps = *props;
 300         if (pPinImpl->allocProps.cbAlign == 0)
 301             pPinImpl->allocProps.cbAlign = 1;
 302     }
 303     else
 304         ZeroMemory(&pPinImpl->allocProps, sizeof(pPinImpl->allocProps));
 305
 306     return S_OK;
 307 }
 308
 309 HRESULT InputPin_Construct(const IPinVtbl *InputPin_Vtbl, const PIN_INFO * pPinInfo, SAMPLEPROC_PUSH pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, CLEANUPPROC pCleanUp, LPCRITICAL_SECTION pCritSec, IMemAllocator *allocator, IPin ** ppPin)
 310 {
 311     InputPin * pPinImpl;
 312
 313     *ppPin = NULL;
 314
 315     if (pPinInfo->dir != PINDIR_INPUT)
 316     {
 317         ERR("Pin direction(%x) != PINDIR_INPUT\n", pPinInfo->dir);
 318         return E_INVALIDARG;
 319     }
 320
 321     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
 322
 323     if (!pPinImpl)
 324         return E_OUTOFMEMORY;
 325
 326     if (SUCCEEDED(InputPin_Init(InputPin_Vtbl, pPinInfo, pSampleProc, pUserData, pQueryAccept, pCleanUp, pCritSec, allocator, pPinImpl)))
 327     {
 328         *ppPin = (IPin *)pPinImpl;
 329         return S_OK;
 330     }
 331
 332     CoTaskMemFree(pPinImpl);
 333     return E_FAIL;
 334 }
 335
 336 HRESULT OutputPin_Construct(const IPinVtbl *OutputPin_Vtbl, long outputpin_size, const PIN_INFO * pPinInfo, ALLOCATOR_PROPERTIES *props, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
 337 {
 338     OutputPin * pPinImpl;
 339
 340     *ppPin = NULL;
 341
 342     if (pPinInfo->dir != PINDIR_OUTPUT)
 343     {
 344         ERR("Pin direction(%x) != PINDIR_OUTPUT\n", pPinInfo->dir);
 345         return E_INVALIDARG;
 346     }
 347
 348     assert(outputpin_size >= sizeof(OutputPin));
 349
 350     pPinImpl = CoTaskMemAlloc(outputpin_size);
 351
 352     if (!pPinImpl)
 353         return E_OUTOFMEMORY;
 354
 355     if (SUCCEEDED(OutputPin_Init(OutputPin_Vtbl, pPinInfo, props, pUserData, pQueryAccept, pCritSec, pPinImpl)))
 356     {
 357         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
 358         return S_OK;
 359     }
 360
 361     CoTaskMemFree(pPinImpl);
 362     return E_FAIL;
 363 }
 364
 365 /*** Common pin functions ***/
 366
 367 ULONG WINAPI IPinImpl_AddRef(IPin * iface)
 368 {
 369     IPinImpl *This = (IPinImpl *)iface;
 370     ULONG refCount = InterlockedIncrement(&This->refCount);
 371
 372     TRACE("(%p)->() AddRef from %d\n", iface, refCount - 1);
 373
 374     return refCount;
 375 }
 376
 377 HRESULT WINAPI IPinImpl_Disconnect(IPin * iface)
 378 {
 379     HRESULT hr;
 380     IPinImpl *This = (IPinImpl *)iface;
 381
 382     TRACE("()\n");
 383
 384     EnterCriticalSection(This->pCritSec);
 385     {
 386         if (This->pConnectedTo)
 387         {
 388             IPin_Release(This->pConnectedTo);
 389             This->pConnectedTo = NULL;
 390             hr = S_OK;
 391         }
 392         else
 393             hr = S_FALSE;
 394     }
 395     LeaveCriticalSection(This->pCritSec);
 396
 397     return hr;
 398 }
 399
 400 HRESULT WINAPI IPinImpl_ConnectedTo(IPin * iface, IPin ** ppPin)
 401 {
 402     HRESULT hr;
 403     IPinImpl *This = (IPinImpl *)iface;
 404
 405     TRACE("(%p)\n", ppPin);
 406
 407     EnterCriticalSection(This->pCritSec);
 408     {
 409         if (This->pConnectedTo)
 410         {
 411             *ppPin = This->pConnectedTo;
 412             IPin_AddRef(*ppPin);
 413             hr = S_OK;
 414         }
 415         else
 416         {
 417             hr = VFW_E_NOT_CONNECTED;
 418             *ppPin = NULL;
 419         }
 420     }
 421     LeaveCriticalSection(This->pCritSec);
 422
 423     return hr;
 424 }
 425
 426 HRESULT WINAPI IPinImpl_ConnectionMediaType(IPin * iface, AM_MEDIA_TYPE * pmt)
 427 {
 428     HRESULT hr;
 429     IPinImpl *This = (IPinImpl *)iface;
 430
 431     TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
 432
 433     EnterCriticalSection(This->pCritSec);
 434     {
 435         if (This->pConnectedTo)
 436         {
 437             CopyMediaType(pmt, &This->mtCurrent);
 438             hr = S_OK;
 439         }
 440         else
 441         {
 442             ZeroMemory(pmt, sizeof(*pmt));
 443             hr = VFW_E_NOT_CONNECTED;
 444         }
 445     }
 446     LeaveCriticalSection(This->pCritSec);
 447
 448     return hr;
 449 }
 450
 451 HRESULT WINAPI IPinImpl_QueryPinInfo(IPin * iface, PIN_INFO * pInfo)
 452 {
 453     IPinImpl *This = (IPinImpl *)iface;
 454
 455     TRACE("(%p/%p)->(%p)\n", This, iface, pInfo);
 456
 457     Copy_PinInfo(pInfo, &This->pinInfo);
 458     IBaseFilter_AddRef(pInfo->pFilter);
 459
 460     return S_OK;
 461 }
 462
 463 HRESULT WINAPI IPinImpl_QueryDirection(IPin * iface, PIN_DIRECTION * pPinDir)
 464 {
 465     IPinImpl *This = (IPinImpl *)iface;
 466
 467     TRACE("(%p/%p)->(%p)\n", This, iface, pPinDir);
 468
 469     *pPinDir = This->pinInfo.dir;
 470
 471     return S_OK;
 472 }
 473
 474 HRESULT WINAPI IPinImpl_QueryId(IPin * iface, LPWSTR * Id)
 475 {
 476     IPinImpl *This = (IPinImpl *)iface;
 477
 478     TRACE("(%p/%p)->(%p)\n", This, iface, Id);
 479
 480     *Id = CoTaskMemAlloc((strlenW(This->pinInfo.achName) + 1) * sizeof(WCHAR));
 481     if (!*Id)
 482         return E_OUTOFMEMORY;
 483
 484     strcpyW(*Id, This->pinInfo.achName);
 485
 486     return S_OK;
 487 }
 488
 489 HRESULT WINAPI IPinImpl_QueryAccept(IPin * iface, const AM_MEDIA_TYPE * pmt)
 490 {
 491     IPinImpl *This = (IPinImpl *)iface;
 492
 493     TRACE("(%p/%p)->(%p)\n", This, iface, pmt);
 494
 495     return (This->fnQueryAccept(This->pUserData, pmt) == S_OK ? S_OK : S_FALSE);
 496 }
 497
 498 HRESULT WINAPI IPinImpl_EnumMediaTypes(IPin * iface, IEnumMediaTypes ** ppEnum)
 499 {
 500     IPinImpl *This = (IPinImpl *)iface;
 501     ENUMMEDIADETAILS emd;
 502
 503     TRACE("(%p/%p)->(%p)\n", This, iface, ppEnum);
 504
 505     /* override this method to allow enumeration of your types */
 506     emd.cMediaTypes = 0;
 507     emd.pMediaTypes = NULL;
 508
 509     return IEnumMediaTypesImpl_Construct(&emd, ppEnum);
 510 }
 511
 512 HRESULT WINAPI IPinImpl_QueryInternalConnections(IPin * iface, IPin ** apPin, ULONG * cPin)
 513 {
 514     IPinImpl *This = (IPinImpl *)iface;
 515
 516     TRACE("(%p/%p)->(%p, %p)\n", This, iface, apPin, cPin);
 517
 518     return E_NOTIMPL; /* to tell caller that all input pins connected to all output pins */
 519 }
 520
 521 /*** IPin implementation for an input pin ***/
 522
 523 HRESULT WINAPI InputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 524 {
 525     InputPin *This = (InputPin *)iface;
 526
 527     TRACE("(%p)->(%s, %p)\n", iface, qzdebugstr_guid(riid), ppv);
 528
 529     *ppv = NULL;
 530
 531     if (IsEqualIID(riid, &IID_IUnknown))
 532         *ppv = (LPVOID)iface;
 533     else if (IsEqualIID(riid, &IID_IPin))
 534         *ppv = (LPVOID)iface;
 535     else if (IsEqualIID(riid, &IID_IMemInputPin))
 536         *ppv = (LPVOID)&This->lpVtblMemInput;
 537     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 538     {
 539         return IBaseFilter_QueryInterface(This->pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
 540     }
 541
 542     if (*ppv)
 543     {
 544         IUnknown_AddRef((IUnknown *)(*ppv));
 545         return S_OK;
 546     }
 547
 548     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 549
 550     return E_NOINTERFACE;
 551 }
 552
 553 ULONG WINAPI InputPin_Release(IPin * iface)
 554 {
 555     InputPin *This = (InputPin *)iface;
 556     ULONG refCount = InterlockedDecrement(&This->pin.refCount);
 557
 558     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 559
 560     if (!refCount)
 561     {
 562         FreeMediaType(&This->pin.mtCurrent);
 563         if (This->pAllocator)
 564             IMemAllocator_Release(This->pAllocator);
 565         This->pAllocator = NULL;
 566         This->pin.lpVtbl = NULL;
 567         CoTaskMemFree(This);
 568         return 0;
 569     }
 570     else
 571         return refCount;
 572 }
 573
 574 HRESULT WINAPI InputPin_Connect(IPin * iface, IPin * pConnector, const AM_MEDIA_TYPE * pmt)
 575 {
 576     ERR("Outgoing connection on an input pin! (%p, %p)\n", pConnector, pmt);
 577
 578     return E_UNEXPECTED;
 579 }
 580
 581
 582 HRESULT WINAPI InputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 583 {
 584     InputPin *This = (InputPin *)iface;
 585     PIN_DIRECTION pindirReceive;
 586     HRESULT hr = S_OK;
 587
 588     TRACE("(%p, %p)\n", pReceivePin, pmt);
 589     dump_AM_MEDIA_TYPE(pmt);
 590
 591     EnterCriticalSection(This->pin.pCritSec);
 592     {
 593         if (This->pin.pConnectedTo)
 594             hr = VFW_E_ALREADY_CONNECTED;
 595
 596         if (SUCCEEDED(hr) && This->pin.fnQueryAccept(This->pin.pUserData, pmt) != S_OK)
 597             hr = VFW_E_TYPE_NOT_ACCEPTED; /* FIXME: shouldn't we just map common errors onto
 598                                            * VFW_E_TYPE_NOT_ACCEPTED and pass the value on otherwise? */
 599
 600         if (SUCCEEDED(hr))
 601         {
 602             IPin_QueryDirection(pReceivePin, &pindirReceive);
 603
 604             if (pindirReceive != PINDIR_OUTPUT)
 605             {
 606                 ERR("Can't connect from non-output pin\n");
 607                 hr = VFW_E_INVALID_DIRECTION;
 608             }
 609         }
 610
 611         if (SUCCEEDED(hr))
 612         {
 613             CopyMediaType(&This->pin.mtCurrent, pmt);
 614             This->pin.pConnectedTo = pReceivePin;
 615             IPin_AddRef(pReceivePin);
 616         }
 617     }
 618     LeaveCriticalSection(This->pin.pCritSec);
 619
 620     return hr;
 621 }
 622
 623 static HRESULT deliver_endofstream(IPin* pin, LPVOID unused)
 624 {
 625     return IPin_EndOfStream( pin );
 626 }
 627
 628 HRESULT WINAPI InputPin_EndOfStream(IPin * iface)
 629 {
 630     HRESULT hr = S_OK;
 631     InputPin *This = (InputPin *)iface;
 632
 633     TRACE("(%p)\n", This);
 634
 635     EnterCriticalSection(This->pin.pCritSec);
 636     if (This->flushing)
 637         hr = S_FALSE;
 638     else
 639         This->end_of_stream = 1;
 640     LeaveCriticalSection(This->pin.pCritSec);
 641
 642     if (hr == S_OK)
 643         hr = SendFurther( iface, deliver_endofstream, NULL, NULL );
 644     return hr;
 645 }
 646
 647 static HRESULT deliver_beginflush(IPin* pin, LPVOID unused)
 648 {
 649     return IPin_BeginFlush( pin );
 650 }
 651
 652 HRESULT WINAPI InputPin_BeginFlush(IPin * iface)
 653 {
 654     InputPin *This = (InputPin *)iface;
 655     HRESULT hr;
 656     TRACE("() semi-stub\n");
 657
 658     EnterCriticalSection(This->pin.pCritSec);
 659     This->flushing = 1;
 660
 661     if (This->fnCleanProc)
 662         This->fnCleanProc(This->pin.pUserData);
 663
 664     hr = SendFurther( iface, deliver_beginflush, NULL, NULL );
 665     LeaveCriticalSection(This->pin.pCritSec);
 666
 667     return hr;
 668 }
 669
 670 static HRESULT deliver_endflush(IPin* pin, LPVOID unused)
 671 {
 672     return IPin_EndFlush( pin );
 673 }
 674
 675 HRESULT WINAPI InputPin_EndFlush(IPin * iface)
 676 {
 677     InputPin *This = (InputPin *)iface;
 678     HRESULT hr;
 679     TRACE("(%p)\n", This);
 680
 681     EnterCriticalSection(This->pin.pCritSec);
 682     This->flushing = This->end_of_stream = 0;
 683
 684     hr = SendFurther( iface, deliver_endflush, NULL, NULL );
 685     LeaveCriticalSection(This->pin.pCritSec);
 686
 687     return hr;
 688 }
 689
 690 typedef struct newsegmentargs
 691 {
 692     REFERENCE_TIME tStart, tStop;
 693     double rate;
 694 } newsegmentargs;
 695
 696 static HRESULT deliver_newsegment(IPin *pin, LPVOID data)
 697 {
 698     newsegmentargs *args = data;
 699     return IPin_NewSegment(pin, args->tStart, args->tStop, args->rate);
 700 }
 701
 702 HRESULT WINAPI InputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
 703 {
 704     InputPin *This = (InputPin *)iface;
 705     newsegmentargs args;
 706
 707     TRACE("(%x%08x, %x%08x, %e)\n", (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
 708
 709     args.tStart = This->tStart = tStart;
 710     args.tStop = This->tStop = tStop;
 711     args.rate = This->dRate = dRate;
 712
 713     return SendFurther( iface, deliver_newsegment, &args, NULL );
 714 }
 715
 716 static const IPinVtbl InputPin_Vtbl =
 717 {
 718     InputPin_QueryInterface,
 719     IPinImpl_AddRef,
 720     InputPin_Release,
 721     InputPin_Connect,
 722     InputPin_ReceiveConnection,
 723     IPinImpl_Disconnect,
 724     IPinImpl_ConnectedTo,
 725     IPinImpl_ConnectionMediaType,
 726     IPinImpl_QueryPinInfo,
 727     IPinImpl_QueryDirection,
 728     IPinImpl_QueryId,
 729     IPinImpl_QueryAccept,
 730     IPinImpl_EnumMediaTypes,
 731     IPinImpl_QueryInternalConnections,
 732     InputPin_EndOfStream,
 733     InputPin_BeginFlush,
 734     InputPin_EndFlush,
 735     InputPin_NewSegment
 736 };
 737
 738 /*** IMemInputPin implementation ***/
 739
 740 HRESULT WINAPI MemInputPin_QueryInterface(IMemInputPin * iface, REFIID riid, LPVOID * ppv)
 741 {
 742     InputPin *This = impl_from_IMemInputPin(iface);
 743
 744     return IPin_QueryInterface((IPin *)&This->pin, riid, ppv);
 745 }
 746
 747 ULONG WINAPI MemInputPin_AddRef(IMemInputPin * iface)
 748 {
 749     InputPin *This = impl_from_IMemInputPin(iface);
 750
 751     return IPin_AddRef((IPin *)&This->pin);
 752 }
 753
 754 ULONG WINAPI MemInputPin_Release(IMemInputPin * iface)
 755 {
 756     InputPin *This = impl_from_IMemInputPin(iface);
 757
 758     return IPin_Release((IPin *)&This->pin);
 759 }
 760
 761 HRESULT WINAPI MemInputPin_GetAllocator(IMemInputPin * iface, IMemAllocator ** ppAllocator)
 762 {
 763     InputPin *This = impl_from_IMemInputPin(iface);
 764
 765     TRACE("(%p/%p)->(%p)\n", This, iface, ppAllocator);
 766
 767     *ppAllocator = This->pAllocator;
 768     if (*ppAllocator)
 769         IMemAllocator_AddRef(*ppAllocator);
 770
 771     return *ppAllocator ? S_OK : VFW_E_NO_ALLOCATOR;
 772 }
 773
 774 HRESULT WINAPI MemInputPin_NotifyAllocator(IMemInputPin * iface, IMemAllocator * pAllocator, BOOL bReadOnly)
 775 {
 776     InputPin *This = impl_from_IMemInputPin(iface);
 777
 778     TRACE("(%p/%p)->(%p, %d)\n", This, iface, pAllocator, bReadOnly);
 779
 780     if (bReadOnly)
 781         FIXME("Read only flag not handled yet!\n");
 782
 783     /* FIXME: Should we release the allocator on disconnection? */
 784     if (!pAllocator)
 785     {
 786         WARN("Null allocator\n");
 787         return E_POINTER;
 788     }
 789
 790     if (This->preferred_allocator && pAllocator != This->preferred_allocator)
 791         return E_FAIL;
 792
 793     if (This->pAllocator)
 794         IMemAllocator_Release(This->pAllocator);
 795     This->pAllocator = pAllocator;
 796     if (This->pAllocator)
 797         IMemAllocator_AddRef(This->pAllocator);
 798
 799     return S_OK;
 800 }
 801
 802 HRESULT WINAPI MemInputPin_GetAllocatorRequirements(IMemInputPin * iface, ALLOCATOR_PROPERTIES * pProps)
 803 {
 804     InputPin *This = impl_from_IMemInputPin(iface);
 805
 806     TRACE("(%p/%p)->(%p)\n", This, iface, pProps);
 807
 808     /* override this method if you have any specific requirements */
 809
 810     return E_NOTIMPL;
 811 }
 812
 813 HRESULT WINAPI MemInputPin_Receive(IMemInputPin * iface, IMediaSample * pSample)
 814 {
 815     InputPin *This = impl_from_IMemInputPin(iface);
 816     HRESULT hr;
 817
 818     /* this trace commented out for performance reasons */
 819     /*TRACE("(%p/%p)->(%p)\n", This, iface, pSample);*/
 820     hr = This->fnSampleProc(This->pin.pUserData, pSample);
 821     return hr;
 822 }
 823
 824 HRESULT WINAPI MemInputPin_ReceiveMultiple(IMemInputPin * iface, IMediaSample ** pSamples, long nSamples, long *nSamplesProcessed)
 825 {
 826     HRESULT hr = S_OK;
 827     InputPin *This = impl_from_IMemInputPin(iface);
 828
 829     TRACE("(%p/%p)->(%p, %ld, %p)\n", This, iface, pSamples, nSamples, nSamplesProcessed);
 830
 831     for (*nSamplesProcessed = 0; *nSamplesProcessed < nSamples; (*nSamplesProcessed)++)
 832     {
 833         hr = IMemInputPin_Receive(iface, pSamples[*nSamplesProcessed]);
 834         if (hr != S_OK)
 835             break;
 836     }
 837
 838     return hr;
 839 }
 840
 841 HRESULT WINAPI MemInputPin_ReceiveCanBlock(IMemInputPin * iface)
 842 {
 843     InputPin *This = impl_from_IMemInputPin(iface);
 844
 845     TRACE("(%p/%p)->()\n", This, iface);
 846
 847     return S_OK;
 848 }
 849
 850 static const IMemInputPinVtbl MemInputPin_Vtbl =
 851 {
 852     MemInputPin_QueryInterface,
 853     MemInputPin_AddRef,
 854     MemInputPin_Release,
 855     MemInputPin_GetAllocator,
 856     MemInputPin_NotifyAllocator,
 857     MemInputPin_GetAllocatorRequirements,
 858     MemInputPin_Receive,
 859     MemInputPin_ReceiveMultiple,
 860     MemInputPin_ReceiveCanBlock
 861 };
 862
 863 HRESULT WINAPI OutputPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
 864 {
 865     OutputPin *This = (OutputPin *)iface;
 866
 867     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
 868
 869     *ppv = NULL;
 870
 871     if (IsEqualIID(riid, &IID_IUnknown))
 872         *ppv = (LPVOID)iface;
 873     else if (IsEqualIID(riid, &IID_IPin))
 874         *ppv = (LPVOID)iface;
 875     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 876     {
 877         return IBaseFilter_QueryInterface(This->pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
 878     }
 879
 880     if (*ppv)
 881     {
 882         IUnknown_AddRef((IUnknown *)(*ppv));
 883         return S_OK;
 884     }
 885
 886     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
 887
 888     return E_NOINTERFACE;
 889 }
 890
 891 ULONG WINAPI OutputPin_Release(IPin * iface)
 892 {
 893     OutputPin *This = (OutputPin *)iface;
 894     ULONG refCount = InterlockedDecrement(&This->pin.refCount);
 895
 896     TRACE("(%p)->() Release from %d\n", iface, refCount + 1);
 897
 898     if (!refCount)
 899     {
 900         FreeMediaType(&This->pin.mtCurrent);
 901         CoTaskMemFree(This);
 902         return 0;
 903     }
 904     return refCount;
 905 }
 906
 907 HRESULT WINAPI OutputPin_Connect(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 908 {
 909     HRESULT hr;
 910     OutputPin *This = (OutputPin *)iface;
 911
 912     TRACE("(%p/%p)->(%p, %p)\n", This, iface, pReceivePin, pmt);
 913     dump_AM_MEDIA_TYPE(pmt);
 914
 915     /* If we try to connect to ourself, we will definitely deadlock.
 916      * There are other cases where we could deadlock too, but this
 917      * catches the obvious case */
 918     assert(pReceivePin != iface);
 919
 920     EnterCriticalSection(This->pin.pCritSec);
 921     {
 922         /* if we have been a specific type to connect with, then we can either connect
 923          * with that or fail. We cannot choose different AM_MEDIA_TYPE */
 924         if (pmt && !IsEqualGUID(&pmt->majortype, &GUID_NULL) && !IsEqualGUID(&pmt->subtype, &GUID_NULL))
 925             hr = This->pConnectSpecific(iface, pReceivePin, pmt);
 926         else
 927         {
 928             /* negotiate media type */
 929
 930             IEnumMediaTypes * pEnumCandidates;
 931             AM_MEDIA_TYPE * pmtCandidate; /* Candidate media type */
 932
 933             if (SUCCEEDED(hr = IPin_EnumMediaTypes(iface, &pEnumCandidates)))
 934             {
 935                 hr = VFW_E_NO_ACCEPTABLE_TYPES; /* Assume the worst, but set to S_OK if connected successfully */
 936
 937                 /* try this filter's media types first */
 938                 while (S_OK == IEnumMediaTypes_Next(pEnumCandidates, 1, &pmtCandidate, NULL))
 939                 {
 940                     if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
 941                         (This->pConnectSpecific(iface, pReceivePin, pmtCandidate) == S_OK))
 942                     {
 943                         hr = S_OK;
 944                         CoTaskMemFree(pmtCandidate);
 945                         break;
 946                     }
 947                     CoTaskMemFree(pmtCandidate);
 948                 }
 949                 IEnumMediaTypes_Release(pEnumCandidates);
 950             }
 951
 952             /* then try receiver filter's media types */
 953             if (hr != S_OK && SUCCEEDED(hr = IPin_EnumMediaTypes(pReceivePin, &pEnumCandidates))) /* if we haven't already connected successfully */
 954             {
 955                 hr = VFW_E_NO_ACCEPTABLE_TYPES; /* Assume the worst, but set to S_OK if connected successfully */
 956
 957                 while (S_OK == IEnumMediaTypes_Next(pEnumCandidates, 1, &pmtCandidate, NULL))
 958                 {
 959                     if (( !pmt || CompareMediaTypes(pmt, pmtCandidate, TRUE) ) &&
 960                         (This->pConnectSpecific(iface, pReceivePin, pmtCandidate) == S_OK))
 961                     {
 962                         hr = S_OK;
 963                         CoTaskMemFree(pmtCandidate);
 964                         break;
 965                     }
 966                     CoTaskMemFree(pmtCandidate);
 967                 } /* while */
 968                 IEnumMediaTypes_Release(pEnumCandidates);
 969             } /* if not found */
 970         } /* if negotiate media type */
 971     } /* if succeeded */
 972     LeaveCriticalSection(This->pin.pCritSec);
 973
 974     TRACE(" -- %x\n", hr);
 975     return hr;
 976 }
 977
 978 HRESULT WINAPI OutputPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
 979 {
 980     ERR("Incoming connection on an output pin! (%p, %p)\n", pReceivePin, pmt);
 981
 982     return E_UNEXPECTED;
 983 }
 984
 985 HRESULT WINAPI OutputPin_Disconnect(IPin * iface)
 986 {
 987     HRESULT hr;
 988     OutputPin *This = (OutputPin *)iface;
 989
 990     TRACE("()\n");
 991
 992     EnterCriticalSection(This->pin.pCritSec);
 993     {
 994         if (This->pMemInputPin)
 995         {
 996             IMemInputPin_Release(This->pMemInputPin);
 997             This->pMemInputPin = NULL;
 998         }
 999         if (This->pin.pConnectedTo)
1000         {
1001             IPin_Release(This->pin.pConnectedTo);
1002             This->pin.pConnectedTo = NULL;
1003             hr = S_OK;
1004         }
1005         else
1006             hr = S_FALSE;
1007     }
1008     LeaveCriticalSection(This->pin.pCritSec);
1009
1010     return hr;
1011 }
1012
1013 HRESULT WINAPI OutputPin_EndOfStream(IPin * iface)
1014 {
1015     TRACE("()\n");
1016
1017     /* not supposed to do anything in an output pin */
1018
1019     return E_UNEXPECTED;
1020 }
1021
1022 HRESULT WINAPI OutputPin_BeginFlush(IPin * iface)
1023 {
1024     TRACE("(%p)->()\n", iface);
1025
1026     /* not supposed to do anything in an output pin */
1027
1028     return E_UNEXPECTED;
1029 }
1030
1031 HRESULT WINAPI OutputPin_EndFlush(IPin * iface)
1032 {
1033     TRACE("(%p)->()\n", iface);
1034
1035     /* not supposed to do anything in an output pin */
1036
1037     return E_UNEXPECTED;
1038 }
1039
1040 HRESULT WINAPI OutputPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
1041 {
1042     TRACE("(%p)->(%x%08x, %x%08x, %e)\n", iface, (ULONG)(tStart >> 32), (ULONG)tStart, (ULONG)(tStop >> 32), (ULONG)tStop, dRate);
1043
1044     /* not supposed to do anything in an output pin */
1045
1046     return E_UNEXPECTED;
1047 }
1048
1049 static const IPinVtbl OutputPin_Vtbl =
1050 {
1051     OutputPin_QueryInterface,
1052     IPinImpl_AddRef,
1053     OutputPin_Release,
1054     OutputPin_Connect,
1055     OutputPin_ReceiveConnection,
1056     OutputPin_Disconnect,
1057     IPinImpl_ConnectedTo,
1058     IPinImpl_ConnectionMediaType,
1059     IPinImpl_QueryPinInfo,
1060     IPinImpl_QueryDirection,
1061     IPinImpl_QueryId,
1062     IPinImpl_QueryAccept,
1063     IPinImpl_EnumMediaTypes,
1064     IPinImpl_QueryInternalConnections,
1065     OutputPin_EndOfStream,
1066     OutputPin_BeginFlush,
1067     OutputPin_EndFlush,
1068     OutputPin_NewSegment
1069 };
1070
1071 HRESULT OutputPin_GetDeliveryBuffer(OutputPin * This, IMediaSample ** ppSample, REFERENCE_TIME * tStart, REFERENCE_TIME * tStop, DWORD dwFlags)
1072 {
1073     HRESULT hr;
1074
1075     TRACE("(%p, %p, %p, %x)\n", ppSample, tStart, tStop, dwFlags);
1076
1077     EnterCriticalSection(This->pin.pCritSec);
1078     {
1079         if (!This->pin.pConnectedTo)
1080             hr = VFW_E_NOT_CONNECTED;
1081         else
1082         {
1083             IMemAllocator * pAlloc = NULL;
1084
1085             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
1086
1087             if (SUCCEEDED(hr))
1088                 hr = IMemAllocator_GetBuffer(pAlloc, ppSample, tStart, tStop, dwFlags);
1089
1090             if (SUCCEEDED(hr))
1091                 hr = IMediaSample_SetTime(*ppSample, tStart, tStop);
1092
1093             if (pAlloc)
1094                 IMemAllocator_Release(pAlloc);
1095         }
1096     }
1097     LeaveCriticalSection(This->pin.pCritSec);
1098
1099     return hr;
1100 }
1101
1102 HRESULT OutputPin_SendSample(OutputPin * This, IMediaSample * pSample)
1103 {
1104     HRESULT hr = S_OK;
1105     IMemInputPin * pMemConnected = NULL;
1106     PIN_INFO pinInfo;
1107
1108     EnterCriticalSection(This->pin.pCritSec);
1109     {
1110         if (!This->pin.pConnectedTo || !This->pMemInputPin)
1111             hr = VFW_E_NOT_CONNECTED;
1112         else
1113         {
1114             /* we don't have the lock held when using This->pMemInputPin,
1115              * so we need to AddRef it to stop it being deleted while we are
1116              * using it. Same with its filter. */
1117             pMemConnected = This->pMemInputPin;
1118             IMemInputPin_AddRef(pMemConnected);
1119             hr = IPin_QueryPinInfo(This->pin.pConnectedTo, &pinInfo);
1120         }
1121     }
1122     LeaveCriticalSection(This->pin.pCritSec);
1123
1124     if (SUCCEEDED(hr))
1125     {
1126         /* NOTE: if we are in a critical section when Receive is called
1127          * then it causes some problems (most notably with the native Video
1128          * Renderer) if we are re-entered for whatever reason */
1129         hr = IMemInputPin_Receive(pMemConnected, pSample);
1130
1131         /* If the filter's destroyed, tell upstream to stop sending data */
1132         if(IBaseFilter_Release(pinInfo.pFilter) == 0 && SUCCEEDED(hr))
1133             hr = S_FALSE;
1134     }
1135     if (pMemConnected)
1136         IMemInputPin_Release(pMemConnected);
1137
1138     return hr;
1139 }
1140
1141 HRESULT OutputPin_DeliverNewSegment(OutputPin * This, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
1142 {
1143     HRESULT hr;
1144
1145     EnterCriticalSection(This->pin.pCritSec);
1146     {
1147         if (!This->pin.pConnectedTo)
1148             hr = VFW_E_NOT_CONNECTED;
1149         else
1150             hr = IPin_NewSegment(This->pin.pConnectedTo, tStart, tStop, dRate);
1151     }
1152     LeaveCriticalSection(This->pin.pCritSec);
1153
1154     return hr;
1155 }
1156
1157 HRESULT OutputPin_CommitAllocator(OutputPin * This)
1158 {
1159     HRESULT hr = S_OK;
1160
1161     TRACE("(%p)->()\n", This);
1162
1163     EnterCriticalSection(This->pin.pCritSec);
1164     {
1165         if (!This->pin.pConnectedTo || !This->pMemInputPin)
1166             hr = VFW_E_NOT_CONNECTED;
1167         else
1168         {
1169             IMemAllocator * pAlloc = NULL;
1170
1171             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
1172
1173             if (SUCCEEDED(hr))
1174                 hr = IMemAllocator_Commit(pAlloc);
1175
1176             if (pAlloc)
1177                 IMemAllocator_Release(pAlloc);
1178         }
1179     }
1180     LeaveCriticalSection(This->pin.pCritSec);
1181
1182     TRACE("--> %08x\n", hr);
1183     return hr;
1184 }
1185
1186 HRESULT OutputPin_DecommitAllocator(OutputPin * This)
1187 {
1188     HRESULT hr = S_OK;
1189
1190     TRACE("(%p)->()\n", This);
1191
1192     EnterCriticalSection(This->pin.pCritSec);
1193     {
1194         if (!This->pin.pConnectedTo || !This->pMemInputPin)
1195             hr = VFW_E_NOT_CONNECTED;
1196         else
1197         {
1198             IMemAllocator * pAlloc = NULL;
1199
1200             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
1201
1202             if (SUCCEEDED(hr))
1203                 hr = IMemAllocator_Decommit(pAlloc);
1204
1205             if (pAlloc)
1206                 IMemAllocator_Release(pAlloc);
1207         }
1208     }
1209     LeaveCriticalSection(This->pin.pCritSec);
1210
1211     TRACE("--> %08x\n", hr);
1212     return hr;
1213 }
1214
1215 HRESULT OutputPin_DeliverDisconnect(OutputPin * This)
1216 {
1217     HRESULT hr;
1218
1219     TRACE("(%p)->()\n", This);
1220
1221     EnterCriticalSection(This->pin.pCritSec);
1222     {
1223         if (!This->pin.pConnectedTo || !This->pMemInputPin)
1224             hr = VFW_E_NOT_CONNECTED;
1225         else if (!This->custom_allocator)
1226         {
1227             IMemAllocator * pAlloc = NULL;
1228
1229             hr = IMemInputPin_GetAllocator(This->pMemInputPin, &pAlloc);
1230
1231             if (SUCCEEDED(hr))
1232                 hr = IMemAllocator_Decommit(pAlloc);
1233
1234             if (pAlloc)
1235                 IMemAllocator_Release(pAlloc);
1236
1237             if (SUCCEEDED(hr))
1238                 hr = IPin_Disconnect(This->pin.pConnectedTo);
1239         }
1240         else /* Kill the allocator! */
1241         {
1242             hr = IPin_Disconnect(This->pin.pConnectedTo);
1243         }
1244         IPin_Disconnect((IPin *)This);
1245     }
1246     LeaveCriticalSection(This->pin.pCritSec);
1247
1248     return hr;
1249 }
1250
1251
1252 static HRESULT PullPin_Init(const IPinVtbl *PullPin_Vtbl, const PIN_INFO * pPinInfo, SAMPLEPROC_PULL pSampleProc, LPVOID pUserData,
1253                             QUERYACCEPTPROC pQueryAccept, CLEANUPPROC pCleanUp, REQUESTPROC pCustomRequest, STOPPROCESSPROC pDone, LPCRITICAL_SECTION pCritSec, PullPin * pPinImpl)
1254 {
1255     /* Common attributes */
1256     pPinImpl->pin.lpVtbl = PullPin_Vtbl;
1257     pPinImpl->pin.refCount = 1;
1258     pPinImpl->pin.pConnectedTo = NULL;
1259     pPinImpl->pin.fnQueryAccept = pQueryAccept;
1260     pPinImpl->pin.pUserData = pUserData;
1261     pPinImpl->pin.pCritSec = pCritSec;
1262     Copy_PinInfo(&pPinImpl->pin.pinInfo, pPinInfo);
1263     ZeroMemory(&pPinImpl->pin.mtCurrent, sizeof(AM_MEDIA_TYPE));
1264
1265     /* Input pin attributes */
1266     pPinImpl->fnSampleProc = pSampleProc;
1267     pPinImpl->fnCleanProc = pCleanUp;
1268     pPinImpl->fnDone = pDone;
1269     pPinImpl->fnPreConnect = NULL;
1270     pPinImpl->pAlloc = NULL;
1271     pPinImpl->pReader = NULL;
1272     pPinImpl->hThread = NULL;
1273     pPinImpl->hEventStateChanged = CreateEventW(NULL, TRUE, TRUE, NULL);
1274     pPinImpl->thread_sleepy = CreateEventW(NULL, FALSE, FALSE, NULL);
1275
1276     pPinImpl->rtStart = 0;
1277     pPinImpl->rtCurrent = 0;
1278     pPinImpl->rtStop = ((LONGLONG)0x7fffffff << 32) | 0xffffffff;
1279     pPinImpl->dRate = 1.0;
1280     pPinImpl->state = Req_Die;
1281     pPinImpl->fnCustomRequest = pCustomRequest;
1282     pPinImpl->stop_playback = 1;
1283
1284     InitializeCriticalSection(&pPinImpl->thread_lock);
1285     pPinImpl->thread_lock.DebugInfo->Spare[0] = (DWORD_PTR)( __FILE__ ": PullPin.thread_lock");
1286
1287     return S_OK;
1288 }
1289
1290 HRESULT PullPin_Construct(const IPinVtbl *PullPin_Vtbl, const PIN_INFO * pPinInfo, SAMPLEPROC_PULL pSampleProc, LPVOID pUserData, QUERYACCEPTPROC pQueryAccept, CLEANUPPROC pCleanUp, REQUESTPROC pCustomRequest, STOPPROCESSPROC pDone, LPCRITICAL_SECTION pCritSec, IPin ** ppPin)
1291 {
1292     PullPin * pPinImpl;
1293
1294     *ppPin = NULL;
1295
1296     if (pPinInfo->dir != PINDIR_INPUT)
1297     {
1298         ERR("Pin direction(%x) != PINDIR_INPUT\n", pPinInfo->dir);
1299         return E_INVALIDARG;
1300     }
1301
1302     pPinImpl = CoTaskMemAlloc(sizeof(*pPinImpl));
1303
1304     if (!pPinImpl)
1305         return E_OUTOFMEMORY;
1306
1307     if (SUCCEEDED(PullPin_Init(PullPin_Vtbl, pPinInfo, pSampleProc, pUserData, pQueryAccept, pCleanUp, pCustomRequest, pDone, pCritSec, pPinImpl)))
1308     {
1309         *ppPin = (IPin *)(&pPinImpl->pin.lpVtbl);
1310         return S_OK;
1311     }
1312
1313     CoTaskMemFree(pPinImpl);
1314     return E_FAIL;
1315 }
1316
1317 static HRESULT PullPin_InitProcessing(PullPin * This);
1318
1319 HRESULT WINAPI PullPin_ReceiveConnection(IPin * iface, IPin * pReceivePin, const AM_MEDIA_TYPE * pmt)
1320 {
1321     PIN_DIRECTION pindirReceive;
1322     HRESULT hr = S_OK;
1323     PullPin *This = (PullPin *)iface;
1324
1325     TRACE("(%p/%p)->(%p, %p)\n", This, iface, pReceivePin, pmt);
1326     dump_AM_MEDIA_TYPE(pmt);
1327
1328     EnterCriticalSection(This->pin.pCritSec);
1329     if (!This->pin.pConnectedTo)
1330     {
1331         ALLOCATOR_PROPERTIES props;
1332
1333         props.cBuffers = 3;
1334         props.cbBuffer = 64 * 1024; /* 64k bytes */
1335         props.cbAlign = 1;
1336         props.cbPrefix = 0;
1337
1338         if (SUCCEEDED(hr) && (This->pin.fnQueryAccept(This->pin.pUserData, pmt) != S_OK))
1339             hr = VFW_E_TYPE_NOT_ACCEPTED; /* FIXME: shouldn't we just map common errors onto
1340                                            * VFW_E_TYPE_NOT_ACCEPTED and pass the value on otherwise? */
1341
1342         if (SUCCEEDED(hr))
1343         {
1344             IPin_QueryDirection(pReceivePin, &pindirReceive);
1345
1346             if (pindirReceive != PINDIR_OUTPUT)
1347             {
1348                 ERR("Can't connect from non-output pin\n");
1349                 hr = VFW_E_INVALID_DIRECTION;
1350             }
1351         }
1352
1353         This->pReader = NULL;
1354         This->pAlloc = NULL;
1355         if (SUCCEEDED(hr))
1356         {
1357             hr = IPin_QueryInterface(pReceivePin, &IID_IAsyncReader, (LPVOID *)&This->pReader);
1358         }
1359
1360         if (SUCCEEDED(hr) && This->fnPreConnect)
1361         {
1362             hr = This->fnPreConnect(iface, pReceivePin, &props);
1363         }
1364
1365         if (SUCCEEDED(hr))
1366         {
1367             hr = IAsyncReader_RequestAllocator(This->pReader, NULL, &props, &This->pAlloc);
1368         }
1369
1370         if (SUCCEEDED(hr))
1371         {
1372             CopyMediaType(&This->pin.mtCurrent, pmt);
1373             This->pin.pConnectedTo = pReceivePin;
1374             IPin_AddRef(pReceivePin);
1375             hr = IMemAllocator_Commit(This->pAlloc);
1376         }
1377
1378         if (SUCCEEDED(hr))
1379             hr = PullPin_InitProcessing(This);
1380
1381         if (FAILED(hr))
1382         {
1383              if (This->pReader)
1384                  IAsyncReader_Release(This->pReader);
1385              This->pReader = NULL;
1386              if (This->pAlloc)
1387                  IMemAllocator_Release(This->pAlloc);
1388              This->pAlloc = NULL;
1389         }
1390     }
1391     else
1392         hr = VFW_E_ALREADY_CONNECTED;
1393     LeaveCriticalSection(This->pin.pCritSec);
1394     return hr;
1395 }
1396
1397 HRESULT WINAPI PullPin_QueryInterface(IPin * iface, REFIID riid, LPVOID * ppv)
1398 {
1399     PullPin *This = (PullPin *)iface;
1400
1401     TRACE("(%p/%p)->(%s, %p)\n", This, iface, qzdebugstr_guid(riid), ppv);
1402
1403     *ppv = NULL;
1404
1405     if (IsEqualIID(riid, &IID_IUnknown))
1406         *ppv = (LPVOID)iface;
1407     else if (IsEqualIID(riid, &IID_IPin))
1408         *ppv = (LPVOID)iface;
1409     else if (IsEqualIID(riid, &IID_IMediaSeeking))
1410     {
1411         return IBaseFilter_QueryInterface(This->pin.pinInfo.pFilter, &IID_IMediaSeeking, ppv);
1412     }
1413
1414     if (*ppv)
1415     {
1416         IUnknown_AddRef((IUnknown *)(*ppv));
1417         return S_OK;
1418     }
1419
1420     FIXME("No interface for %s!\n", qzdebugstr_guid(riid));
1421
1422     return E_NOINTERFACE;
1423 }
1424
1425 ULONG WINAPI PullPin_Release(IPin *iface)
1426 {
1427     PullPin *This = (PullPin *)iface;
1428     ULONG refCount = InterlockedDecrement(&This->pin.refCount);
1429
1430     TRACE("(%p)->() Release from %d\n", This, refCount + 1);
1431
1432     if (!refCount)
1433     {
1434         WaitForSingleObject(This->hEventStateChanged, INFINITE);
1435         assert(!This->hThread);
1436
1437         if(This->pAlloc)
1438             IMemAllocator_Release(This->pAlloc);
1439         if(This->pReader)
1440             IAsyncReader_Release(This->pReader);
1441         CloseHandle(This->thread_sleepy);
1442         CloseHandle(This->hEventStateChanged);
1443         This->thread_lock.DebugInfo->Spare[0] = 0;
1444         DeleteCriticalSection(&This->thread_lock);
1445         CoTaskMemFree(This);
1446         return 0;
1447     }
1448     return refCount;
1449 }
1450
1451 static void CALLBACK PullPin_Flush(PullPin *This)
1452 {
1453     IMediaSample *pSample;
1454     TRACE("Flushing!\n");
1455
1456     if (This->pReader)
1457     {
1458         /* Flush outstanding samples */
1459         IAsyncReader_BeginFlush(This->pReader);
1460
1461         for (;;)
1462         {
1463             DWORD_PTR dwUser;
1464
1465             IAsyncReader_WaitForNext(This->pReader, 0, &pSample, &dwUser);
1466
1467             if (!pSample)
1468                 break;
1469
1470             assert(!IMediaSample_GetActualDataLength(pSample));
1471
1472             IMediaSample_Release(pSample);
1473         }
1474
1475         IAsyncReader_EndFlush(This->pReader);
1476     }
1477 }
1478
1479 static void CALLBACK PullPin_Thread_Process(PullPin *This)
1480 {
1481     HRESULT hr;
1482     IMediaSample * pSample = NULL;
1483     ALLOCATOR_PROPERTIES allocProps;
1484
1485     hr = IMemAllocator_GetProperties(This->pAlloc, &allocProps);
1486
1487     This->cbAlign = allocProps.cbAlign;
1488
1489     if (This->rtCurrent < This->rtStart)
1490         This->rtCurrent = MEDIATIME_FROM_BYTES(ALIGNDOWN(BYTES_FROM_MEDIATIME(This->rtStart), This->cbAlign));
1491
1492     TRACE("Start\n");
1493
1494     if (This->rtCurrent >= This->rtStop)
1495     {
1496         IPin_EndOfStream((IPin *)This);
1497         return;
1498     }
1499
1500     /* There is no sample in our buffer */
1501     hr = This->fnCustomRequest(This->pin.pUserData);
1502
1503     if (FAILED(hr))
1504         ERR("Request error: %x\n", hr);
1505
1506     EnterCriticalSection(This->pin.pCritSec);
1507     SetEvent(This->hEventStateChanged);
1508     LeaveCriticalSection(This->pin.pCritSec);
1509
1510     if (SUCCEEDED(hr))
1511     do
1512     {
1513         DWORD_PTR dwUser;
1514
1515         TRACE("Process sample\n");
1516
1517         hr = IAsyncReader_WaitForNext(This->pReader, 10000, &pSample, &dwUser);
1518
1519         /* Return an empty sample on error to the implementation in case it does custom parsing, so it knows it's gone */
1520         if (SUCCEEDED(hr))
1521         {
1522             hr = This->fnSampleProc(This->pin.pUserData, pSample, dwUser);
1523         }
1524         else
1525         {
1526             /* FIXME: This is not well handled yet! */
1527             ERR("Processing error: %x\n", hr);
1528         }
1529
1530         if (pSample)
1531         {
1532             IMediaSample_Release(pSample);
1533             pSample = NULL;
1534         }
1535     } while (This->rtCurrent < This->rtStop && hr == S_OK && !This->stop_playback);
1536
1537     /* Sample was rejected, and we are asked to terminate */
1538     if (pSample)
1539     {
1540         IMediaSample_Release(pSample);
1541     }
1542
1543     /* Can't reset state to Sleepy here because that might race, instead PauseProcessing will do that for us
1544      * Flush remaining samples
1545      */
1546     if (This->fnDone)
1547         This->fnDone(This->pin.pUserData);
1548
1549     TRACE("End: %08x, %d\n", hr, This->stop_playback);
1550 }
1551
1552 static void CALLBACK PullPin_Thread_Pause(PullPin *This)
1553 {
1554     EnterCriticalSection(This->pin.pCritSec);
1555     This->state = Req_Sleepy;
1556     SetEvent(This->hEventStateChanged);
1557     LeaveCriticalSection(This->pin.pCritSec);
1558 }
1559
1560 static void CALLBACK PullPin_Thread_Stop(PullPin *This)
1561 {
1562     TRACE("(%p)->()\n", This);
1563
1564     EnterCriticalSection(This->pin.pCritSec);
1565     {
1566         CloseHandle(This->hThread);
1567         This->hThread = NULL;
1568         SetEvent(This->hEventStateChanged);
1569     }
1570     LeaveCriticalSection(This->pin.pCritSec);
1571
1572     IBaseFilter_Release(This->pin.pinInfo.pFilter);
1573
1574     CoUninitialize();
1575     ExitThread(0);
1576 }
1577
1578 static void CALLBACK PullPin_Thread_Flush(PullPin *This)
1579 {
1580     PullPin_Flush(This);
1581
1582     EnterCriticalSection(This->pin.pCritSec);
1583     This->state = Req_Sleepy;
1584     SetEvent(This->hEventStateChanged);
1585     LeaveCriticalSection(This->pin.pCritSec);
1586 }
1587
1588 static DWORD WINAPI PullPin_Thread_Main(LPVOID pv)
1589 {
1590     PullPin *This = pv;
1591     CoInitializeEx(NULL, COINIT_MULTITHREADED);
1592
1593     PullPin_Flush(This);
1594
1595     for (;;)
1596     {
1597         WaitForSingleObject(This->thread_sleepy, INFINITE);
1598
1599         TRACE("State: %d\n", This->state);
1600
1601         switch (This->state)
1602         {
1603         case Req_Die: PullPin_Thread_Stop(This); break;
1604         case Req_Run: PullPin_Thread_Process(This); break;
1605         case Req_Pause: PullPin_Thread_Pause(This); break;
1606         case Req_Flush: PullPin_Thread_Flush(This); break;
1607         case Req_Sleepy: ERR("Should not be signalled with SLEEPY!\n"); break;
1608         default: ERR("Unknown state request: %d\n", This->state); break;
1609         }
1610     }
1611 }
1612
1613 static HRESULT PullPin_InitProcessing(PullPin * This)
1614 {
1615     HRESULT hr = S_OK;
1616
1617     TRACE("(%p)->()\n", This);
1618
1619     /* if we are connected */
1620     if (This->pAlloc)
1621     {
1622         DWORD dwThreadId;
1623
1624         WaitForSingleObject(This->hEventStateChanged, INFINITE);
1625         EnterCriticalSection(This->pin.pCritSec);
1626
1627         assert(!This->hThread);
1628         assert(This->state == Req_Die);
1629         assert(This->stop_playback);
1630         assert(WaitForSingleObject(This->thread_sleepy, 0) == WAIT_TIMEOUT);
1631         This->state = Req_Sleepy;
1632
1633         /* AddRef the filter to make sure it and it's pins will be around
1634          * as long as the thread */
1635         IBaseFilter_AddRef(This->pin.pinInfo.pFilter);
1636
1637
1638         This->hThread = CreateThread(NULL, 0, PullPin_Thread_Main, This, 0, &dwThreadId);
1639         if (!This->hThread)
1640         {
1641             hr = HRESULT_FROM_WIN32(GetLastError());
1642             IBaseFilter_Release(This->pin.pinInfo.pFilter);
1643         }
1644
1645         if (SUCCEEDED(hr))
1646         {
1647             SetEvent(This->hEventStateChanged);
1648             /* If assert fails, that means a command was not processed before the thread previously terminated */
1649         }
1650         LeaveCriticalSection(This->pin.pCritSec);
1651     }
1652
1653     TRACE(" -- %x\n", hr);
1654
1655     return hr;
1656 }
1657
1658 HRESULT PullPin_StartProcessing(PullPin * This)
1659 {
1660     /* if we are connected */
1661     TRACE("(%p)->()\n", This);
1662     if(This->pAlloc)
1663     {
1664         assert(This->hThread);
1665
1666         PullPin_WaitForStateChange(This, INFINITE);
1667
1668         assert(This->state == Req_Sleepy);
1669
1670         /* Wake up! */
1671         assert(WaitForSingleObject(This->thread_sleepy, 0) == WAIT_TIMEOUT);
1672         This->state = Req_Run;
1673         This->stop_playback = 0;
1674         ResetEvent(This->hEventStateChanged);
1675         SetEvent(This->thread_sleepy);
1676     }
1677
1678     return S_OK;
1679 }
1680
1681 HRESULT PullPin_PauseProcessing(PullPin * This)
1682 {
1683     /* if we are connected */
1684     TRACE("(%p)->()\n", This);
1685     if(This->pAlloc)
1686     {
1687         assert(This->hThread);
1688
1689         PullPin_WaitForStateChange(This, INFINITE);
1690
1691         EnterCriticalSection(This->pin.pCritSec);
1692
1693         assert(!This->stop_playback);
1694         assert(This->state == Req_Run|| This->state == Req_Sleepy);
1695
1696         assert(WaitForSingleObject(This->thread_sleepy, 0) == WAIT_TIMEOUT);
1697         This->state = Req_Pause;
1698         This->stop_playback = 1;
1699         ResetEvent(This->hEventStateChanged);
1700         SetEvent(This->thread_sleepy);
1701
1702         LeaveCriticalSection(This->pin.pCritSec);
1703     }
1704
1705     return S_OK;
1706 }
1707
1708 static HRESULT PullPin_StopProcessing(PullPin * This)
1709 {
1710     TRACE("(%p)->()\n", This);
1711
1712     /* if we are alive */
1713     assert(This->hThread);
1714
1715     PullPin_WaitForStateChange(This, INFINITE);
1716
1717     assert(This->state == Req_Pause || This->state == Req_Sleepy);
1718
1719     This->stop_playback = 1;
1720     This->state = Req_Die;
1721     assert(WaitForSingleObject(This->thread_sleepy, 0) == WAIT_TIMEOUT);
1722     ResetEvent(This->hEventStateChanged);
1723     SetEvent(This->thread_sleepy);
1724     return S_OK;
1725 }
1726
1727 HRESULT PullPin_WaitForStateChange(PullPin * This, DWORD dwMilliseconds)
1728 {
1729     if (WaitForSingleObject(This->hEventStateChanged, dwMilliseconds) == WAIT_TIMEOUT)
1730         return S_FALSE;
1731     return S_OK;
1732 }
1733
1734 HRESULT WINAPI PullPin_EndOfStream(IPin * iface)
1735 {
1736     FIXME("(%p)->() stub\n", iface);
1737
1738     return SendFurther( iface, deliver_endofstream, NULL, NULL );
1739 }
1740
1741 HRESULT WINAPI PullPin_BeginFlush(IPin * iface)
1742 {
1743     PullPin *This = (PullPin *)iface;
1744     TRACE("(%p)->()\n", This);
1745
1746     EnterCriticalSection(This->pin.pCritSec);
1747     {
1748         SendFurther( iface, deliver_beginflush, NULL, NULL );
1749     }
1750     LeaveCriticalSection(This->pin.pCritSec);
1751
1752     EnterCriticalSection(&This->thread_lock);
1753     {
1754         if (This->pReader)
1755             IAsyncReader_BeginFlush(This->pReader);
1756         PullPin_WaitForStateChange(This, INFINITE);
1757
1758         if (This->hThread && This->state == Req_Run)
1759         {
1760             PullPin_PauseProcessing(This);
1761             PullPin_WaitForStateChange(This, INFINITE);
1762         }
1763
1764         This->state = Req_Flush;
1765         ResetEvent(This->hEventStateChanged);
1766         SetEvent(This->thread_sleepy);
1767         PullPin_WaitForStateChange(This, INFINITE);
1768     }
1769     LeaveCriticalSection(&This->thread_lock);
1770
1771     EnterCriticalSection(This->pin.pCritSec);
1772     {
1773         This->fnCleanProc(This->pin.pUserData);
1774     }
1775     LeaveCriticalSection(This->pin.pCritSec);
1776
1777     return S_OK;
1778 }
1779
1780 HRESULT WINAPI PullPin_EndFlush(IPin * iface)
1781 {
1782     PullPin *This = (PullPin *)iface;
1783
1784     TRACE("(%p)->()\n", iface);
1785
1786     EnterCriticalSection(&This->thread_lock);
1787     {
1788         FILTER_STATE state;
1789         IBaseFilter_GetState(This->pin.pinInfo.pFilter, INFINITE, &state);
1790
1791         if (state != State_Stopped)
1792             PullPin_StartProcessing(This);
1793
1794         PullPin_WaitForStateChange(This, INFINITE);
1795     }
1796     LeaveCriticalSection(&This->thread_lock);
1797
1798     EnterCriticalSection(This->pin.pCritSec);
1799     SendFurther( iface, deliver_endflush, NULL, NULL );
1800     LeaveCriticalSection(This->pin.pCritSec);
1801
1802     return S_OK;
1803 }
1804
1805 HRESULT WINAPI PullPin_Disconnect(IPin *iface)
1806 {
1807     HRESULT hr;
1808     PullPin *This = (PullPin *)iface;
1809
1810     TRACE("()\n");
1811
1812     EnterCriticalSection(This->pin.pCritSec);
1813     {
1814         if (FAILED(hr = IMemAllocator_Decommit(This->pAlloc)))
1815             ERR("Allocator decommit failed with error %x. Possible memory leak\n", hr);
1816
1817         if (This->pin.pConnectedTo)
1818         {
1819             IPin_Release(This->pin.pConnectedTo);
1820             This->pin.pConnectedTo = NULL;
1821             PullPin_StopProcessing(This);
1822             hr = S_OK;
1823         }
1824         else
1825             hr = S_FALSE;
1826     }
1827     LeaveCriticalSection(This->pin.pCritSec);
1828
1829     return hr;
1830 }
1831
1832 HRESULT WINAPI PullPin_NewSegment(IPin * iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double dRate)
1833 {
1834     newsegmentargs args;
1835     FIXME("(%p)->(%s, %s, %g) stub\n", iface, wine_dbgstr_longlong(tStart), wine_dbgstr_longlong(tStop), dRate);
1836
1837     args.tStart = tStart;
1838     args.tStop = tStop;
1839     args.rate = dRate;
1840
1841     return SendFurther( iface, deliver_newsegment, &args, NULL );
1842 }
1843
1844 static const IPinVtbl PullPin_Vtbl =
1845 {
1846     PullPin_QueryInterface,
1847     IPinImpl_AddRef,
1848     PullPin_Release,
1849     InputPin_Connect,
1850     PullPin_ReceiveConnection,
1851     PullPin_Disconnect,
1852     IPinImpl_ConnectedTo,
1853     IPinImpl_ConnectionMediaType,
1854     IPinImpl_QueryPinInfo,
1855     IPinImpl_QueryDirection,
1856     IPinImpl_QueryId,
1857     IPinImpl_QueryAccept,
1858     IPinImpl_EnumMediaTypes,
1859     IPinImpl_QueryInternalConnections,
1860     PullPin_EndOfStream,
1861     PullPin_BeginFlush,
1862     PullPin_EndFlush,
1863     PullPin_NewSegment
1864 };