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