dll/directx/qedit/samplegrabber.c

   1 /*              DirectShow Sample Grabber object (QEDIT.DLL)
   2  *
   3  * Copyright 2009 Paul Chitescu
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <assert.h>
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "ole2.h"
  29
  30 #include "qedit_private.h"
  31 #include "wine/debug.h"
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(qedit);
  34
  35 static WCHAR const vendor_name[] = { 'W', 'i', 'n', 'e', 0 };
  36 static WCHAR const pin_in_name[] = { 'I', 'n', 0 };
  37 static WCHAR const pin_out_name[] = { 'O', 'u', 't', 0 };
  38
  39 IEnumPins *pinsenum_create(IBaseFilter *filter, IPin **pins, ULONG pinCount);
  40 IEnumMediaTypes *mediaenum_create(AM_MEDIA_TYPE *mtype);
  41
  42 /* Fixed pins enumerator, holds filter referenced */
  43 typedef struct _PE_Impl {
  44     IEnumPins pe;
  45     IBaseFilter *filter;
  46     LONG refCount;
  47     ULONG numPins;
  48     ULONG index;
  49     IPin *pins[0];
  50 } PE_Impl;
  51
  52
  53 /* IEnumPins interface implementation */
  54
  55 /* IUnknown */
  56 static ULONG WINAPI
  57 Fixed_IEnumPins_AddRef(IEnumPins *iface)
  58 {
  59     PE_Impl *This = (PE_Impl *)iface;
  60     ULONG refCount = InterlockedIncrement(&This->refCount);
  61     TRACE("(%p) new ref = %u\n", This, refCount);
  62     return refCount;
  63 }
  64
  65 /* IUnknown */
  66 static ULONG WINAPI
  67 Fixed_IEnumPins_Release(IEnumPins *iface)
  68 {
  69     PE_Impl *This = (PE_Impl *)iface;
  70     ULONG refCount = InterlockedDecrement(&This->refCount);
  71     TRACE("(%p) new ref = %u\n", This, refCount);
  72     if (refCount == 0)
  73     {
  74         IBaseFilter_Release(This->filter);
  75         CoTaskMemFree(This);
  76         return 0;
  77     }
  78     return refCount;
  79 }
  80
  81 /* IUnknown */
  82 static HRESULT WINAPI
  83 Fixed_IEnumPins_QueryInterface(IEnumPins *iface, REFIID riid, void **ppvObject)
  84 {
  85     PE_Impl *This = (PE_Impl *)iface;
  86     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
  87
  88     if (IsEqualIID(riid, &IID_IUnknown) ||
  89         IsEqualIID(riid, &IID_IEnumPins)) {
  90         Fixed_IEnumPins_AddRef(iface);
  91         *ppvObject = &(This->pins);
  92         return S_OK;
  93     }
  94     *ppvObject = NULL;
  95     WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppvObject);
  96     return E_NOINTERFACE;
  97 }
  98
  99 /* IEnumPins */
 100 static HRESULT WINAPI
 101 Fixed_IEnumPins_Next(IEnumPins *iface, ULONG nPins, IPin **pins, ULONG *fetched)
 102 {
 103     PE_Impl *This = (PE_Impl *)iface;
 104     ULONG count = 0;
 105     TRACE("(%p)->(%u, %p, %p) index = %u\n", This, nPins, pins, fetched, This->index);
 106     if (!nPins)
 107         return E_INVALIDARG;
 108     if (!pins || ((nPins != 1) && !fetched))
 109         return E_POINTER;
 110     while ((count < nPins) && (This->index < This->numPins)) {
 111         IPin *pin = This->pins[This->index++];
 112         IPin_AddRef(pin);
 113         pins[count++] = pin;
 114     }
 115     if (fetched)
 116         *fetched = count;
 117     return (count == nPins) ? S_OK : S_FALSE;
 118 }
 119
 120 /* IEnumPins */
 121 static HRESULT WINAPI
 122 Fixed_IEnumPins_Skip(IEnumPins *iface, ULONG nPins)
 123 {
 124     PE_Impl *This = (PE_Impl *)iface;
 125     TRACE("(%p)->(%u) index = %u\n", This, nPins, This->index);
 126     nPins += This->index;
 127     if (nPins >= This->numPins) {
 128         This->index = This->numPins;
 129         return S_FALSE;
 130     }
 131     This->index = nPins;
 132     return S_OK;
 133 }
 134
 135 /* IEnumPins */
 136 static HRESULT WINAPI
 137 Fixed_IEnumPins_Reset(IEnumPins *iface)
 138 {
 139     PE_Impl *This = (PE_Impl *)iface;
 140     TRACE("(%p)->() index = %u\n", This, This->index);
 141     This->index = 0;
 142     return S_OK;
 143 }
 144
 145 /* IEnumPins */
 146 static HRESULT WINAPI
 147 Fixed_IEnumPins_Clone(IEnumPins *iface, IEnumPins **pins)
 148 {
 149     PE_Impl *This = (PE_Impl *)iface;
 150     TRACE("(%p)->(%p) index = %u\n", This, pins, This->index);
 151     if (!pins)
 152         return E_POINTER;
 153     *pins = pinsenum_create(This->filter, This->pins, This->numPins);
 154     if (!*pins)
 155         return E_OUTOFMEMORY;
 156     ((PE_Impl *)*pins)->index = This->index;
 157     return S_OK;
 158 }
 159
 160
 161 /* Virtual tables and constructor */
 162
 163 static const IEnumPinsVtbl IEnumPins_VTable =
 164 {
 165     Fixed_IEnumPins_QueryInterface,
 166     Fixed_IEnumPins_AddRef,
 167     Fixed_IEnumPins_Release,
 168     Fixed_IEnumPins_Next,
 169     Fixed_IEnumPins_Skip,
 170     Fixed_IEnumPins_Reset,
 171     Fixed_IEnumPins_Clone,
 172 };
 173
 174 IEnumPins *pinsenum_create(IBaseFilter *filter, IPin **pins, ULONG pinCount)
 175 {
 176     ULONG len = sizeof(PE_Impl) + (pinCount * sizeof(IPin *));
 177     PE_Impl *obj = CoTaskMemAlloc(len);
 178     if (obj) {
 179         ULONG i;
 180         ZeroMemory(obj, len);
 181         obj->pe.lpVtbl = &IEnumPins_VTable;
 182         obj->refCount = 1;
 183         obj->filter = filter;
 184         obj->numPins = pinCount;
 185         obj->index = 0;
 186         for (i=0; i<pinCount; i++)
 187             obj->pins[i] = pins[i];
 188         IBaseFilter_AddRef(filter);
 189     }
 190     return &obj->pe;
 191 }
 192
 193
 194 /* Single media type enumerator */
 195 typedef struct _ME_Impl {
 196     IEnumMediaTypes me;
 197     LONG refCount;
 198     BOOL past;
 199     AM_MEDIA_TYPE mtype;
 200 } ME_Impl;
 201
 202
 203 /* IEnumMediaTypes interface implementation */
 204
 205 /* IUnknown */
 206 static ULONG WINAPI
 207 Single_IEnumMediaTypes_AddRef(IEnumMediaTypes *iface)
 208 {
 209     ME_Impl *This = (ME_Impl *)iface;
 210     ULONG refCount = InterlockedIncrement(&This->refCount);
 211     TRACE("(%p) new ref = %u\n", This, refCount);
 212     return refCount;
 213 }
 214
 215 /* IUnknown */
 216 static ULONG WINAPI
 217 Single_IEnumMediaTypes_Release(IEnumMediaTypes *iface)
 218 {
 219     ME_Impl *This = (ME_Impl *)iface;
 220     ULONG refCount = InterlockedDecrement(&This->refCount);
 221     TRACE("(%p) new ref = %u\n", This, refCount);
 222     if (refCount == 0)
 223     {
 224         if (This->mtype.pbFormat)
 225             CoTaskMemFree(This->mtype.pbFormat);
 226         CoTaskMemFree(This);
 227         return 0;
 228     }
 229     return refCount;
 230 }
 231
 232 /* IUnknown */
 233 static HRESULT WINAPI
 234 Single_IEnumMediaTypes_QueryInterface(IEnumMediaTypes *iface, REFIID riid, void **ppvObject)
 235 {
 236     ME_Impl *This = (ME_Impl *)iface;
 237     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
 238
 239     if (IsEqualIID(riid, &IID_IUnknown) ||
 240         IsEqualIID(riid, &IID_IEnumMediaTypes)) {
 241         Single_IEnumMediaTypes_AddRef(iface);
 242         *ppvObject = &(This->me);
 243         return S_OK;
 244     }
 245     *ppvObject = NULL;
 246     WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppvObject);
 247     return E_NOINTERFACE;
 248 }
 249
 250 /* IEnumMediaTypes */
 251 static HRESULT WINAPI
 252 Single_IEnumMediaTypes_Next(IEnumMediaTypes *iface, ULONG nTypes, AM_MEDIA_TYPE **types, ULONG *fetched)
 253 {
 254     ME_Impl *This = (ME_Impl *)iface;
 255     ULONG count = 0;
 256     TRACE("(%p)->(%u, %p, %p)\n", This, nTypes, types, fetched);
 257     if (!nTypes)
 258         return E_INVALIDARG;
 259     if (!types || ((nTypes != 1) && !fetched))
 260         return E_POINTER;
 261     if (!This->past) {
 262         AM_MEDIA_TYPE *mtype = CoTaskMemAlloc(sizeof(AM_MEDIA_TYPE));
 263         *mtype = This->mtype;
 264         if (mtype->cbFormat) {
 265             mtype->pbFormat = CoTaskMemAlloc(mtype->cbFormat);
 266             CopyMemory(mtype->pbFormat, This->mtype.pbFormat, mtype->cbFormat);
 267         }
 268         *types = mtype;
 269         This->past = TRUE;
 270         count = 1;
 271     }
 272     if (fetched)
 273         *fetched = count;
 274     return (count == nTypes) ? S_OK : S_FALSE;
 275 }
 276
 277 /* IEnumMediaTypes */
 278 static HRESULT WINAPI
 279 Single_IEnumMediaTypes_Skip(IEnumMediaTypes *iface, ULONG nTypes)
 280 {
 281     ME_Impl *This = (ME_Impl *)iface;
 282     TRACE("(%p)->(%u)\n", This, nTypes);
 283     if (nTypes)
 284         This->past = TRUE;
 285     return This->past ? S_FALSE : S_OK;
 286 }
 287
 288 /* IEnumMediaTypes */
 289 static HRESULT WINAPI
 290 Single_IEnumMediaTypes_Reset(IEnumMediaTypes *iface)
 291 {
 292     ME_Impl *This = (ME_Impl *)iface;
 293     TRACE("(%p)->()\n", This);
 294     This->past = FALSE;
 295     return S_OK;
 296 }
 297
 298 /* IEnumMediaTypes */
 299 static HRESULT WINAPI
 300 Single_IEnumMediaTypes_Clone(IEnumMediaTypes *iface, IEnumMediaTypes **me)
 301 {
 302     ME_Impl *This = (ME_Impl *)iface;
 303     TRACE("(%p)->(%p)\n", This, me);
 304     if (!me)
 305         return E_POINTER;
 306     *me = mediaenum_create(&This->mtype);
 307     if (!*me)
 308         return E_OUTOFMEMORY;
 309     ((ME_Impl *)*me)->past = This->past;
 310     return S_OK;
 311 }
 312
 313
 314 /* Virtual tables and constructor */
 315
 316 static const IEnumMediaTypesVtbl IEnumMediaTypes_VTable =
 317 {
 318     Single_IEnumMediaTypes_QueryInterface,
 319     Single_IEnumMediaTypes_AddRef,
 320     Single_IEnumMediaTypes_Release,
 321     Single_IEnumMediaTypes_Next,
 322     Single_IEnumMediaTypes_Skip,
 323     Single_IEnumMediaTypes_Reset,
 324     Single_IEnumMediaTypes_Clone,
 325 };
 326
 327 IEnumMediaTypes *mediaenum_create(AM_MEDIA_TYPE *mtype)
 328 {
 329     ME_Impl *obj = CoTaskMemAlloc(sizeof(ME_Impl));
 330     if (obj) {
 331         ZeroMemory(obj, sizeof(ME_Impl));
 332         obj->me.lpVtbl = &IEnumMediaTypes_VTable;
 333         obj->refCount = 1;
 334         obj->past = FALSE;
 335         obj->mtype = *mtype;
 336         obj->mtype.pUnk = NULL;
 337         if (mtype->cbFormat) {
 338             obj->mtype.pbFormat = CoTaskMemAlloc(mtype->cbFormat);
 339             CopyMemory(obj->mtype.pbFormat, mtype->pbFormat, mtype->cbFormat);
 340         }
 341         else
 342             obj->mtype.pbFormat = NULL;
 343     }
 344     return &obj->me;
 345 }
 346
 347
 348 /* Sample Grabber pin implementation */
 349 typedef struct _SG_Pin {
 350     const IPinVtbl* lpVtbl;
 351     PIN_DIRECTION dir;
 352     WCHAR const *name;
 353     struct _SG_Impl *sg;
 354     IPin *pair;
 355 } SG_Pin;
 356
 357 /* Sample Grabber filter implementation */
 358 typedef struct _SG_Impl {
 359     const IBaseFilterVtbl* IBaseFilter_Vtbl;
 360     const ISampleGrabberVtbl* ISampleGrabber_Vtbl;
 361     const IMemInputPinVtbl* IMemInputPin_Vtbl;
 362     /* TODO: IMediaPosition, IMediaSeeking, IQualityControl */
 363     LONG refCount;
 364     FILTER_INFO info;
 365     FILTER_STATE state;
 366     AM_MEDIA_TYPE mtype;
 367     SG_Pin pin_in;
 368     SG_Pin pin_out;
 369     IMemAllocator *allocator;
 370     IReferenceClock *refClock;
 371     IMemInputPin *memOutput;
 372     ISampleGrabberCB *grabberIface;
 373     LONG grabberMethod;
 374     LONG oneShot;
 375 } SG_Impl;
 376
 377 enum {
 378     OneShot_None,
 379     OneShot_Wait,
 380     OneShot_Past,
 381 };
 382
 383 /* Get the SampleGrabber implementation This pointer from various interface pointers */
 384 static inline SG_Impl *impl_from_IBaseFilter(IBaseFilter *iface)
 385 {
 386     return (SG_Impl *)((char*)iface - FIELD_OFFSET(SG_Impl, IBaseFilter_Vtbl));
 387 }
 388
 389 static inline SG_Impl *impl_from_ISampleGrabber(ISampleGrabber *iface)
 390 {
 391     return (SG_Impl *)((char*)iface - FIELD_OFFSET(SG_Impl, ISampleGrabber_Vtbl));
 392 }
 393
 394 static inline SG_Impl *impl_from_IMemInputPin(IMemInputPin *iface)
 395 {
 396     return (SG_Impl *)((char*)iface - FIELD_OFFSET(SG_Impl, IMemInputPin_Vtbl));
 397 }
 398
 399
 400 /* Cleanup at end of life */
 401 static void SampleGrabber_cleanup(SG_Impl *This)
 402 {
 403     TRACE("(%p)\n", This);
 404     if (This->info.pGraph)
 405         WARN("(%p) still joined to filter graph %p\n", This, This->info.pGraph);
 406     if (This->allocator)
 407         IMemAllocator_Release(This->allocator);
 408     if (This->refClock)
 409         IReferenceClock_Release(This->refClock);
 410     if (This->memOutput)
 411         IMemInputPin_Release(This->memOutput);
 412     if (This->grabberIface)
 413         ISampleGrabberCB_Release(This->grabberIface);
 414     if (This->mtype.pbFormat)
 415         CoTaskMemFree(This->mtype.pbFormat);
 416 }
 417
 418 /* Common helper AddRef called from all interfaces */
 419 static ULONG SampleGrabber_addref(SG_Impl *This)
 420 {
 421     ULONG refCount = InterlockedIncrement(&This->refCount);
 422     TRACE("(%p) new ref = %u\n", This, refCount);
 423     return refCount;
 424 }
 425
 426 /* Common helper Release called from all interfaces */
 427 static ULONG SampleGrabber_release(SG_Impl *This)
 428 {
 429     ULONG refCount = InterlockedDecrement(&This->refCount);
 430     TRACE("(%p) new ref = %u\n", This, refCount);
 431     if (refCount == 0)
 432     {
 433         SampleGrabber_cleanup(This);
 434         CoTaskMemFree(This);
 435         return 0;
 436     }
 437     return refCount;
 438 }
 439
 440 /* Common helper QueryInterface called from all interfaces */
 441 static HRESULT SampleGrabber_query(SG_Impl *This, REFIID riid, void **ppvObject)
 442 {
 443     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
 444
 445     if (IsEqualIID(riid, &IID_IUnknown) ||
 446         IsEqualIID(riid, &IID_IPersist) ||
 447         IsEqualIID(riid, &IID_IMediaFilter) ||
 448         IsEqualIID(riid, &IID_IBaseFilter)) {
 449         SampleGrabber_addref(This);
 450         *ppvObject = &(This->IBaseFilter_Vtbl);
 451         return S_OK;
 452     }
 453     else if (IsEqualIID(riid, &IID_ISampleGrabber)) {
 454         SampleGrabber_addref(This);
 455         *ppvObject = &(This->ISampleGrabber_Vtbl);
 456         return S_OK;
 457     }
 458     else if (IsEqualIID(riid, &IID_IMemInputPin)) {
 459         SampleGrabber_addref(This);
 460         *ppvObject = &(This->IMemInputPin_Vtbl);
 461         return S_OK;
 462     }
 463     else if (IsEqualIID(riid, &IID_IMediaPosition))
 464         FIXME("IMediaPosition not implemented\n");
 465     else if (IsEqualIID(riid, &IID_IMediaSeeking))
 466         FIXME("IMediaSeeking not implemented\n");
 467     else if (IsEqualIID(riid, &IID_IQualityControl))
 468         FIXME("IQualityControl not implemented\n");
 469     *ppvObject = NULL;
 470     WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppvObject);
 471     return E_NOINTERFACE;
 472 }
 473
 474 /* Helper that calls installed sample callbacks */
 475 static void SampleGrabber_callback(SG_Impl *This, IMediaSample *sample)
 476 {
 477     double time = 0.0;
 478     REFERENCE_TIME tStart, tEnd;
 479     if (SUCCEEDED(IMediaSample_GetTime(sample, &tStart, &tEnd)))
 480         time = 1e-7 * tStart;
 481     switch (This->grabberMethod) {
 482         case 0:
 483             {
 484                 ULONG ref = IMediaSample_AddRef(sample);
 485                 ISampleGrabberCB_SampleCB(This->grabberIface, time, sample);
 486                 ref = IMediaSample_Release(sample) + 1 - ref;
 487                 if (ref)
 488                 {
 489                     ERR("(%p) Callback referenced sample %p by %u\n", This, sample, ref);
 490                     /* ugly as hell but some apps are sooo buggy */
 491                     while (ref--)
 492                         IMediaSample_Release(sample);
 493                 }
 494             }
 495             break;
 496         case 1:
 497             {
 498                 BYTE *data = 0;
 499                 long size = IMediaSample_GetActualDataLength(sample);
 500                 if (size && SUCCEEDED(IMediaSample_GetPointer(sample, &data)) && data)
 501                     ISampleGrabberCB_BufferCB(This->grabberIface, time, data, size);
 502             }
 503             break;
 504         case -1:
 505             break;
 506         default:
 507             FIXME("unsupported method %ld\n", (long int)This->grabberMethod);
 508             /* do not bother us again */
 509             This->grabberMethod = -1;
 510     }
 511 }
 512
 513
 514 /* SampleGrabber implementation of IBaseFilter interface */
 515
 516 /* IUnknown */
 517 static HRESULT WINAPI
 518 SampleGrabber_IBaseFilter_QueryInterface(IBaseFilter *iface, REFIID riid, void **ppvObject)
 519 {
 520     return SampleGrabber_query(impl_from_IBaseFilter(iface), riid, ppvObject);
 521 }
 522
 523 /* IUnknown */
 524 static ULONG WINAPI
 525 SampleGrabber_IBaseFilter_AddRef(IBaseFilter *iface)
 526 {
 527     return SampleGrabber_addref(impl_from_IBaseFilter(iface));
 528 }
 529
 530 /* IUnknown */
 531 static ULONG WINAPI
 532 SampleGrabber_IBaseFilter_Release(IBaseFilter *iface)
 533 {
 534     return SampleGrabber_release(impl_from_IBaseFilter(iface));
 535 }
 536
 537 /* IPersist */
 538 static HRESULT WINAPI
 539 SampleGrabber_IBaseFilter_GetClassID(IBaseFilter *iface, CLSID *pClassID)
 540 {
 541     TRACE("(%p)\n", pClassID);
 542     if (!pClassID)
 543         return E_POINTER;
 544     *pClassID = CLSID_SampleGrabber;
 545     return S_OK;
 546 }
 547
 548 /* IMediaFilter */
 549 static HRESULT WINAPI
 550 SampleGrabber_IBaseFilter_Stop(IBaseFilter *iface)
 551 {
 552     SG_Impl *This = impl_from_IBaseFilter(iface);
 553     TRACE("(%p)\n", This);
 554     This->state = State_Stopped;
 555     return S_OK;
 556 }
 557
 558 /* IMediaFilter */
 559 static HRESULT WINAPI
 560 SampleGrabber_IBaseFilter_Pause(IBaseFilter *iface)
 561 {
 562     SG_Impl *This = impl_from_IBaseFilter(iface);
 563     TRACE("(%p)\n", This);
 564     This->state = State_Paused;
 565     return S_OK;
 566 }
 567
 568 /* IMediaFilter */
 569 static HRESULT WINAPI
 570 SampleGrabber_IBaseFilter_Run(IBaseFilter *iface, REFERENCE_TIME tStart)
 571 {
 572     SG_Impl *This = impl_from_IBaseFilter(iface);
 573     TRACE("(%p)\n", This);
 574     This->state = State_Running;
 575     return S_OK;
 576 }
 577
 578 /* IMediaFilter */
 579 static HRESULT WINAPI
 580 SampleGrabber_IBaseFilter_GetState(IBaseFilter *iface, DWORD msTout, FILTER_STATE *state)
 581 {
 582     SG_Impl *This = impl_from_IBaseFilter(iface);
 583     TRACE("(%p)->(%u, %p)\n", This, msTout, state);
 584     if (!state)
 585         return E_POINTER;
 586     *state = This->state;
 587     return S_OK;
 588 }
 589
 590 /* IMediaFilter */
 591 static HRESULT WINAPI
 592 SampleGrabber_IBaseFilter_SetSyncSource(IBaseFilter *iface, IReferenceClock *clock)
 593 {
 594     SG_Impl *This = impl_from_IBaseFilter(iface);
 595     TRACE("(%p)->(%p)\n", This, clock);
 596     if (clock != This->refClock)
 597     {
 598         if (clock)
 599             IReferenceClock_AddRef(clock);
 600         if (This->refClock)
 601             IReferenceClock_Release(This->refClock);
 602         This->refClock = clock;
 603     }
 604     return S_OK;
 605 }
 606
 607 /* IMediaFilter */
 608 static HRESULT WINAPI
 609 SampleGrabber_IBaseFilter_GetSyncSource(IBaseFilter *iface, IReferenceClock **clock)
 610 {
 611     SG_Impl *This = impl_from_IBaseFilter(iface);
 612     TRACE("(%p)->(%p)\n", This, clock);
 613     if (!clock)
 614         return E_POINTER;
 615     if (This->refClock)
 616         IReferenceClock_AddRef(This->refClock);
 617     *clock = This->refClock;
 618     return S_OK;
 619 }
 620
 621 /* IBaseFilter */
 622 static HRESULT WINAPI
 623 SampleGrabber_IBaseFilter_EnumPins(IBaseFilter *iface, IEnumPins **pins)
 624 {
 625     SG_Impl *This = impl_from_IBaseFilter(iface);
 626     IPin *pin[2];
 627     TRACE("(%p)->(%p)\n", This, pins);
 628     if (!pins)
 629         return E_POINTER;
 630     pin[0] = (IPin*)&This->pin_in.lpVtbl;
 631     pin[1] = (IPin*)&This->pin_out.lpVtbl;
 632     *pins = pinsenum_create(iface, pin, 2);
 633     return *pins ? S_OK : E_OUTOFMEMORY;
 634 }
 635
 636 /* IBaseFilter */
 637 static HRESULT WINAPI
 638 SampleGrabber_IBaseFilter_FindPin(IBaseFilter *iface, LPCWSTR id, IPin **pin)
 639 {
 640     SG_Impl *This = impl_from_IBaseFilter(iface);
 641     TRACE("(%p)->(%s, %p)\n", This, debugstr_w(id), pin);
 642     if (!id || !pin)
 643         return E_POINTER;
 644     if (!lstrcmpiW(id,pin_in_name))
 645     {
 646         SampleGrabber_addref(This);
 647         *pin = (IPin*)&(This->pin_in.lpVtbl);
 648         return S_OK;
 649     }
 650     else if (!lstrcmpiW(id,pin_out_name))
 651     {
 652         SampleGrabber_addref(This);
 653         *pin = (IPin*)&(This->pin_out.lpVtbl);
 654         return S_OK;
 655     }
 656     *pin = NULL;
 657     return VFW_E_NOT_FOUND;
 658 }
 659
 660 /* IBaseFilter */
 661 static HRESULT WINAPI
 662 SampleGrabber_IBaseFilter_QueryFilterInfo(IBaseFilter *iface, FILTER_INFO *info)
 663 {
 664     SG_Impl *This = impl_from_IBaseFilter(iface);
 665     TRACE("(%p)->(%p)\n", This, info);
 666     if (!info)
 667         return E_POINTER;
 668     if (This->info.pGraph)
 669         IFilterGraph_AddRef(This->info.pGraph);
 670     *info = This->info;
 671     return S_OK;
 672 }
 673
 674 /* IBaseFilter */
 675 static HRESULT WINAPI
 676 SampleGrabber_IBaseFilter_JoinFilterGraph(IBaseFilter *iface, IFilterGraph *graph, LPCWSTR name)
 677 {
 678     SG_Impl *This = impl_from_IBaseFilter(iface);
 679     TRACE("(%p)->(%p, %s)\n", This, graph, debugstr_w(name));
 680     This->info.pGraph = graph;
 681     if (name)
 682         lstrcpynW(This->info.achName,name,MAX_FILTER_NAME);
 683     This->oneShot = OneShot_None;
 684     return S_OK;
 685 }
 686
 687 /* IBaseFilter */
 688 static HRESULT WINAPI
 689 SampleGrabber_IBaseFilter_QueryVendorInfo(IBaseFilter *iface, LPWSTR *vendor)
 690 {
 691     TRACE("(%p)\n", vendor);
 692     if (!vendor)
 693         return E_POINTER;
 694     *vendor = CoTaskMemAlloc(sizeof(vendor_name));
 695     CopyMemory(*vendor, vendor_name, sizeof(vendor_name));
 696     return S_OK;
 697 }
 698
 699
 700 /* SampleGrabber implementation of ISampleGrabber interface */
 701
 702 /* IUnknown */
 703 static HRESULT WINAPI
 704 SampleGrabber_ISampleGrabber_QueryInterface(ISampleGrabber *iface, REFIID riid, void **ppvObject)
 705 {
 706     return SampleGrabber_query(impl_from_ISampleGrabber(iface), riid, ppvObject);
 707 }
 708
 709 /* IUnknown */
 710 static ULONG WINAPI
 711 SampleGrabber_ISampleGrabber_AddRef(ISampleGrabber *iface)
 712 {
 713     return SampleGrabber_addref(impl_from_ISampleGrabber(iface));
 714 }
 715
 716 /* IUnknown */
 717 static ULONG WINAPI
 718 SampleGrabber_ISampleGrabber_Release(ISampleGrabber *iface)
 719 {
 720     return SampleGrabber_release(impl_from_ISampleGrabber(iface));
 721 }
 722
 723 /* ISampleGrabber */
 724 static HRESULT WINAPI
 725 SampleGrabber_ISampleGrabber_SetOneShot(ISampleGrabber *iface, BOOL oneShot)
 726 {
 727     SG_Impl *This = impl_from_ISampleGrabber(iface);
 728     TRACE("(%p)->(%u)\n", This, oneShot);
 729     This->oneShot = oneShot ? OneShot_Wait : OneShot_None;
 730     return S_OK;
 731 }
 732
 733 /* ISampleGrabber */
 734 static HRESULT WINAPI
 735 SampleGrabber_ISampleGrabber_SetMediaType(ISampleGrabber *iface, const AM_MEDIA_TYPE *type)
 736 {
 737     SG_Impl *This = impl_from_ISampleGrabber(iface);
 738     TRACE("(%p)->(%p)\n", This, type);
 739     if (!type)
 740         return E_POINTER;
 741     TRACE("Media type: %s/%s ssize: %u format: %s (%u bytes)\n",
 742         debugstr_guid(&type->majortype), debugstr_guid(&type->subtype),
 743         type->lSampleSize,
 744         debugstr_guid(&type->formattype), type->cbFormat);
 745     if (This->mtype.pbFormat)
 746         CoTaskMemFree(This->mtype.pbFormat);
 747     This->mtype = *type;
 748     This->mtype.pUnk = NULL;
 749     if (type->cbFormat) {
 750         This->mtype.pbFormat = CoTaskMemAlloc(type->cbFormat);
 751         CopyMemory(This->mtype.pbFormat, type->pbFormat, type->cbFormat);
 752     }
 753     else
 754         This->mtype.pbFormat = NULL;
 755     return S_OK;
 756 }
 757
 758 /* ISampleGrabber */
 759 static HRESULT WINAPI
 760 SampleGrabber_ISampleGrabber_GetConnectedMediaType(ISampleGrabber *iface, AM_MEDIA_TYPE *type)
 761 {
 762     SG_Impl *This = impl_from_ISampleGrabber(iface);
 763     TRACE("(%p)->(%p)\n", This, type);
 764     if (!type)
 765         return E_POINTER;
 766     if (!This->pin_in.pair)
 767         return VFW_E_NOT_CONNECTED;
 768     *type = This->mtype;
 769     if (type->cbFormat) {
 770         type->pbFormat = CoTaskMemAlloc(type->cbFormat);
 771         CopyMemory(type->pbFormat, This->mtype.pbFormat, type->cbFormat);
 772     }
 773     return S_OK;
 774 }
 775
 776 /* ISampleGrabber */
 777 static HRESULT WINAPI
 778 SampleGrabber_ISampleGrabber_SetBufferSamples(ISampleGrabber *iface, BOOL bufferEm)
 779 {
 780     TRACE("(%u)\n", bufferEm);
 781     if (bufferEm) {
 782         FIXME("buffering not implemented\n");
 783         return E_NOTIMPL;
 784     }
 785     return S_OK;
 786 }
 787
 788 /* ISampleGrabber */
 789 static HRESULT WINAPI
 790 SampleGrabber_ISampleGrabber_GetCurrentBuffer(ISampleGrabber *iface, LONG *bufSize, LONG *buffer)
 791 {
 792     FIXME("(%p, %p): stub\n", bufSize, buffer);
 793     if (!bufSize)
 794         return E_POINTER;
 795     return E_INVALIDARG;
 796 }
 797
 798 /* ISampleGrabber */
 799 static HRESULT WINAPI
 800 SampleGrabber_ISampleGrabber_GetCurrentSample(ISampleGrabber *iface, IMediaSample **sample)
 801 {
 802     /* MS doesn't implement it either, noone should call it */
 803     WARN("(%p): not implemented\n", sample);
 804     return E_NOTIMPL;
 805 }
 806
 807 /* ISampleGrabber */
 808 static HRESULT WINAPI
 809 SampleGrabber_ISampleGrabber_SetCallback(ISampleGrabber *iface, ISampleGrabberCB *cb, LONG whichMethod)
 810 {
 811     SG_Impl *This = impl_from_ISampleGrabber(iface);
 812     TRACE("(%p)->(%p, %u)\n", This, cb, whichMethod);
 813     if (This->grabberIface)
 814         ISampleGrabberCB_Release(This->grabberIface);
 815     This->grabberIface = cb;
 816     This->grabberMethod = whichMethod;
 817     if (cb)
 818         ISampleGrabberCB_AddRef(cb);
 819     return S_OK;
 820 }
 821
 822
 823 /* SampleGrabber implementation of IMemInputPin interface */
 824
 825 /* IUnknown */
 826 static HRESULT WINAPI
 827 SampleGrabber_IMemInputPin_QueryInterface(IMemInputPin *iface, REFIID riid, void **ppvObject)
 828 {
 829     return SampleGrabber_query(impl_from_IMemInputPin(iface), riid, ppvObject);
 830 }
 831
 832 /* IUnknown */
 833 static ULONG WINAPI
 834 SampleGrabber_IMemInputPin_AddRef(IMemInputPin *iface)
 835 {
 836     return SampleGrabber_addref(impl_from_IMemInputPin(iface));
 837 }
 838
 839 /* IUnknown */
 840 static ULONG WINAPI
 841 SampleGrabber_IMemInputPin_Release(IMemInputPin *iface)
 842 {
 843     return SampleGrabber_release(impl_from_IMemInputPin(iface));
 844 }
 845
 846 /* IMemInputPin */
 847 static HRESULT WINAPI
 848 SampleGrabber_IMemInputPin_GetAllocator(IMemInputPin *iface, IMemAllocator **allocator)
 849 {
 850     SG_Impl *This = impl_from_IMemInputPin(iface);
 851     TRACE("(%p)->(%p) allocator = %p\n", This, allocator, This->allocator);
 852     if (!allocator)
 853         return E_POINTER;
 854     *allocator = This->allocator;
 855     if (!*allocator)
 856         return VFW_E_NO_ALLOCATOR;
 857     IMemAllocator_AddRef(*allocator);
 858     return S_OK;
 859 }
 860
 861 /* IMemInputPin */
 862 static HRESULT WINAPI
 863 SampleGrabber_IMemInputPin_NotifyAllocator(IMemInputPin *iface, IMemAllocator *allocator, BOOL readOnly)
 864 {
 865     SG_Impl *This = impl_from_IMemInputPin(iface);
 866     TRACE("(%p)->(%p, %u) allocator = %p\n", This, allocator, readOnly, This->allocator);
 867     if (This->allocator == allocator)
 868         return S_OK;
 869     if (This->allocator)
 870         IMemAllocator_Release(This->allocator);
 871     This->allocator = allocator;
 872     if (allocator)
 873         IMemAllocator_AddRef(allocator);
 874     return S_OK;
 875 }
 876
 877 /* IMemInputPin */
 878 static HRESULT WINAPI
 879 SampleGrabber_IMemInputPin_GetAllocatorRequirements(IMemInputPin *iface, ALLOCATOR_PROPERTIES *props)
 880 {
 881     SG_Impl *This = impl_from_IMemInputPin(iface);
 882     FIXME("(%p)->(%p): semi-stub\n", This, props);
 883     if (!props)
 884         return E_POINTER;
 885     return This->memOutput ? IMemInputPin_GetAllocatorRequirements(This->memOutput, props) : E_NOTIMPL;
 886 }
 887
 888 /* IMemInputPin */
 889 static HRESULT WINAPI
 890 SampleGrabber_IMemInputPin_Receive(IMemInputPin *iface, IMediaSample *sample)
 891 {
 892     SG_Impl *This = impl_from_IMemInputPin(iface);
 893     HRESULT hr;
 894     TRACE("(%p)->(%p) output = %p, grabber = %p\n", This, sample, This->memOutput, This->grabberIface);
 895     if (!sample)
 896         return E_POINTER;
 897     if ((This->state != State_Running) || (This->oneShot == OneShot_Past))
 898         return S_FALSE;
 899     if (This->grabberIface)
 900         SampleGrabber_callback(This, sample);
 901     hr = This->memOutput ? IMemInputPin_Receive(This->memOutput, sample) : S_OK;
 902     if (This->oneShot == OneShot_Wait) {
 903         This->oneShot = OneShot_Past;
 904         hr = S_FALSE;
 905         if (This->pin_out.pair)
 906             IPin_EndOfStream(This->pin_out.pair);
 907     }
 908     return hr;
 909 }
 910
 911 /* IMemInputPin */
 912 static HRESULT WINAPI
 913 SampleGrabber_IMemInputPin_ReceiveMultiple(IMemInputPin *iface, IMediaSample **samples, LONG nSamples, LONG *nProcessed)
 914 {
 915     SG_Impl *This = impl_from_IMemInputPin(iface);
 916     TRACE("(%p)->(%p, %u, %p) output = %p, grabber = %p\n", This, samples, nSamples, nProcessed, This->memOutput, This->grabberIface);
 917     if (!samples || !nProcessed)
 918         return E_POINTER;
 919     if ((This->state != State_Running) || (This->oneShot == OneShot_Past))
 920         return S_FALSE;
 921     if (This->grabberIface) {
 922         LONG idx;
 923         for (idx = 0; idx < nSamples; idx++)
 924             SampleGrabber_callback(This, samples[idx]);
 925     }
 926     return This->memOutput ? IMemInputPin_ReceiveMultiple(This->memOutput, samples, nSamples, nProcessed) : S_OK;
 927 }
 928
 929 /* IMemInputPin */
 930 static HRESULT WINAPI
 931 SampleGrabber_IMemInputPin_ReceiveCanBlock(IMemInputPin *iface)
 932 {
 933     SG_Impl *This = impl_from_IMemInputPin(iface);
 934     TRACE("(%p)\n", This);
 935     return This->memOutput ? IMemInputPin_ReceiveCanBlock(This->memOutput) : S_OK;
 936 }
 937
 938
 939 /* SampleGrabber member pin implementation */
 940
 941 /* IUnknown */
 942 static ULONG WINAPI
 943 SampleGrabber_IPin_AddRef(IPin *iface)
 944 {
 945     return SampleGrabber_addref(((SG_Pin *)iface)->sg);
 946 }
 947
 948 /* IUnknown */
 949 static ULONG WINAPI
 950 SampleGrabber_IPin_Release(IPin *iface)
 951 {
 952     return SampleGrabber_release(((SG_Pin *)iface)->sg);
 953 }
 954
 955 /* IUnknown */
 956 static HRESULT WINAPI
 957 SampleGrabber_IPin_QueryInterface(IPin *iface, REFIID riid, void **ppvObject)
 958 {
 959     SG_Pin *This = (SG_Pin *)iface;
 960     TRACE("(%p)->(%s %p)\n", This, debugstr_guid(riid), ppvObject);
 961
 962     if (IsEqualIID(riid, &IID_IUnknown) ||
 963         IsEqualIID(riid, &IID_IPin)) {
 964         SampleGrabber_addref(This->sg);
 965         *ppvObject = This;
 966         return S_OK;
 967     }
 968     else if (IsEqualIID(riid, &IID_IMemInputPin)) {
 969         SampleGrabber_addref(This->sg);
 970         *ppvObject = &(This->sg->IMemInputPin_Vtbl);
 971         return S_OK;
 972     }
 973     *ppvObject = NULL;
 974     WARN("(%p, %s,%p): not found\n", This, debugstr_guid(riid), ppvObject);
 975     return E_NOINTERFACE;
 976 }
 977
 978 /* IPin - input pin */
 979 static HRESULT WINAPI
 980 SampleGrabber_In_IPin_Connect(IPin *iface, IPin *receiver, const AM_MEDIA_TYPE *mtype)
 981 {
 982     WARN("(%p, %p): unexpected\n", receiver, mtype);
 983     return E_UNEXPECTED;
 984 }
 985
 986 /* IPin - output pin */
 987 static HRESULT WINAPI
 988 SampleGrabber_Out_IPin_Connect(IPin *iface, IPin *receiver, const AM_MEDIA_TYPE *type)
 989 {
 990     SG_Pin *This = (SG_Pin *)iface;
 991     HRESULT hr;
 992     TRACE("(%p)->(%p, %p)\n", This, receiver, type);
 993     if (!receiver)
 994         return E_POINTER;
 995     if (This->pair)
 996         return VFW_E_ALREADY_CONNECTED;
 997     if (This->sg->state != State_Stopped)
 998         return VFW_E_NOT_STOPPED;
 999     if (type) {
1000         TRACE("Media type: %s/%s ssize: %u format: %s (%u bytes)\n",
1001             debugstr_guid(&type->majortype), debugstr_guid(&type->subtype),
1002             type->lSampleSize,
1003             debugstr_guid(&type->formattype), type->cbFormat);
1004         if (!IsEqualGUID(&This->sg->mtype.majortype,&GUID_NULL) &&
1005             !IsEqualGUID(&This->sg->mtype.majortype,&type->majortype))
1006             return VFW_E_TYPE_NOT_ACCEPTED;
1007         if (!IsEqualGUID(&This->sg->mtype.subtype,&MEDIASUBTYPE_None) &&
1008             !IsEqualGUID(&This->sg->mtype.subtype,&type->subtype))
1009             return VFW_E_TYPE_NOT_ACCEPTED;
1010         if (!IsEqualGUID(&This->sg->mtype.formattype,&GUID_NULL) &&
1011             !IsEqualGUID(&This->sg->mtype.formattype,&FORMAT_None) &&
1012             !IsEqualGUID(&This->sg->mtype.formattype,&type->formattype))
1013             return VFW_E_TYPE_NOT_ACCEPTED;
1014     }
1015     else
1016         type = &This->sg->mtype;
1017     if (!IsEqualGUID(&type->formattype, &FORMAT_None) &&
1018         !IsEqualGUID(&type->formattype, &GUID_NULL) &&
1019         !type->pbFormat)
1020         return VFW_E_TYPE_NOT_ACCEPTED;
1021     hr = IPin_ReceiveConnection(receiver,(IPin*)&This->lpVtbl,type);
1022     if (FAILED(hr))
1023         return hr;
1024     This->pair = receiver;
1025     if (This->sg->memOutput) {
1026         IMemInputPin_Release(This->sg->memOutput);
1027         This->sg->memOutput = NULL;
1028     }
1029     IPin_QueryInterface(receiver,&IID_IMemInputPin,(void **)&(This->sg->memOutput));
1030     TRACE("(%p) Accepted IPin %p, IMemInputPin %p\n", This, receiver, This->sg->memOutput);
1031     return S_OK;
1032 }
1033
1034 /* IPin - input pin */
1035 static HRESULT WINAPI
1036 SampleGrabber_In_IPin_ReceiveConnection(IPin *iface, IPin *connector, const AM_MEDIA_TYPE *type)
1037 {
1038     SG_Pin *This = (SG_Pin *)iface;
1039     TRACE("(%p)->(%p, %p)\n", This, connector, type);
1040     if (!connector)
1041         return E_POINTER;
1042     if (This->pair)
1043         return VFW_E_ALREADY_CONNECTED;
1044     if (This->sg->state != State_Stopped)
1045         return VFW_E_NOT_STOPPED;
1046     if (type) {
1047         TRACE("Media type: %s/%s ssize: %u format: %s (%u bytes)\n",
1048             debugstr_guid(&type->majortype), debugstr_guid(&type->subtype),
1049             type->lSampleSize,
1050             debugstr_guid(&type->formattype), type->cbFormat);
1051         if (!IsEqualGUID(&This->sg->mtype.majortype,&GUID_NULL) &&
1052             !IsEqualGUID(&This->sg->mtype.majortype,&type->majortype))
1053             return VFW_E_TYPE_NOT_ACCEPTED;
1054         if (!IsEqualGUID(&This->sg->mtype.subtype,&MEDIASUBTYPE_None) &&
1055             !IsEqualGUID(&This->sg->mtype.subtype,&type->subtype))
1056             return VFW_E_TYPE_NOT_ACCEPTED;
1057         if (!IsEqualGUID(&This->sg->mtype.formattype,&GUID_NULL) &&
1058             !IsEqualGUID(&This->sg->mtype.formattype,&FORMAT_None) &&
1059             !IsEqualGUID(&This->sg->mtype.formattype,&type->formattype))
1060             return VFW_E_TYPE_NOT_ACCEPTED;
1061         if (!IsEqualGUID(&type->formattype, &FORMAT_None) &&
1062             !IsEqualGUID(&type->formattype, &GUID_NULL) &&
1063             !type->pbFormat)
1064             return VFW_E_TYPE_NOT_ACCEPTED;
1065         if (This->sg->mtype.pbFormat)
1066             CoTaskMemFree(This->sg->mtype.pbFormat);
1067         This->sg->mtype = *type;
1068         This->sg->mtype.pUnk = NULL;
1069         if (type->cbFormat) {
1070             This->sg->mtype.pbFormat = CoTaskMemAlloc(type->cbFormat);
1071             CopyMemory(This->sg->mtype.pbFormat, type->pbFormat, type->cbFormat);
1072         }
1073         else
1074             This->sg->mtype.pbFormat = NULL;
1075     }
1076     This->pair = connector;
1077     TRACE("(%p) Accepted IPin %p\n", This, connector);
1078     return S_OK;
1079 }
1080
1081 /* IPin - output pin */
1082 static HRESULT WINAPI
1083 SampleGrabber_Out_IPin_ReceiveConnection(IPin *iface, IPin *connector, const AM_MEDIA_TYPE *mtype)
1084 {
1085     WARN("(%p, %p): unexpected\n", connector, mtype);
1086     return E_UNEXPECTED;
1087 }
1088
1089 /* IPin - input pin */
1090 static HRESULT WINAPI
1091 SampleGrabber_In_IPin_Disconnect(IPin *iface)
1092 {
1093     SG_Pin *This = (SG_Pin *)iface;
1094     TRACE("(%p)->() pair = %p\n", This, This->pair);
1095     if (This->sg->state != State_Stopped)
1096         return VFW_E_NOT_STOPPED;
1097     if (This->pair) {
1098         This->pair = NULL;
1099         return S_OK;
1100     }
1101     return S_FALSE;
1102 }
1103
1104 /* IPin - output pin */
1105 static HRESULT WINAPI
1106 SampleGrabber_Out_IPin_Disconnect(IPin *iface)
1107 {
1108     SG_Pin *This = (SG_Pin *)iface;
1109     TRACE("(%p)->() pair = %p\n", This, This->pair);
1110     if (This->sg->state != State_Stopped)
1111         return VFW_E_NOT_STOPPED;
1112     if (This->pair) {
1113         This->pair = NULL;
1114         if (This->sg->memOutput) {
1115             IMemInputPin_Release(This->sg->memOutput);
1116             This->sg->memOutput = NULL;
1117         }
1118         return S_OK;
1119     }
1120     return S_FALSE;
1121 }
1122
1123 /* IPin */
1124 static HRESULT WINAPI
1125 SampleGrabber_IPin_ConnectedTo(IPin *iface, IPin **pin)
1126 {
1127     SG_Pin *This = (SG_Pin *)iface;
1128     TRACE("(%p)->(%p) pair = %p\n", This, pin, This->pair);
1129     if (!pin)
1130         return E_POINTER;
1131     *pin = This->pair;
1132     if (*pin) {
1133         IPin_AddRef(*pin);
1134         return S_OK;
1135     }
1136     return VFW_E_NOT_CONNECTED;
1137 }
1138
1139 /* IPin */
1140 static HRESULT WINAPI
1141 SampleGrabber_IPin_ConnectionMediaType(IPin *iface, AM_MEDIA_TYPE *mtype)
1142 {
1143     SG_Pin *This = (SG_Pin *)iface;
1144     TRACE("(%p)->(%p)\n", This, mtype);
1145     if (!mtype)
1146         return E_POINTER;
1147     if (!This->pair)
1148         return VFW_E_NOT_CONNECTED;
1149     *mtype = This->sg->mtype;
1150     if (mtype->cbFormat) {
1151         mtype->pbFormat = CoTaskMemAlloc(mtype->cbFormat);
1152         CopyMemory(mtype->pbFormat, This->sg->mtype.pbFormat, mtype->cbFormat);
1153     }
1154     return S_OK;
1155 }
1156
1157 /* IPin */
1158 static HRESULT WINAPI
1159 SampleGrabber_IPin_QueryPinInfo(IPin *iface, PIN_INFO *info)
1160 {
1161     SG_Pin *This = (SG_Pin *)iface;
1162     TRACE("(%p)->(%p)\n", This, info);
1163     if (!info)
1164         return E_POINTER;
1165     SampleGrabber_addref(This->sg);
1166     info->pFilter = (IBaseFilter *)This->sg;
1167     info->dir = This->dir;
1168     lstrcpynW(info->achName,This->name,MAX_PIN_NAME);
1169     return S_OK;
1170 }
1171
1172 /* IPin */
1173 static HRESULT WINAPI
1174 SampleGrabber_IPin_QueryDirection(IPin *iface, PIN_DIRECTION *dir)
1175 {
1176     SG_Pin *This = (SG_Pin *)iface;
1177     TRACE("(%p)->(%p)\n", This, dir);
1178     if (!dir)
1179         return E_POINTER;
1180     *dir = This->dir;
1181     return S_OK;
1182 }
1183
1184 /* IPin */
1185 static HRESULT WINAPI
1186 SampleGrabber_IPin_QueryId(IPin *iface, LPWSTR *id)
1187 {
1188     SG_Pin *This = (SG_Pin *)iface;
1189     int len;
1190     TRACE("(%p)->(%p)\n", This, id);
1191     if (!id)
1192         return E_POINTER;
1193     len = sizeof(WCHAR)*(1+lstrlenW(This->name));
1194     *id = CoTaskMemAlloc(len);
1195     CopyMemory(*id, This->name, len);
1196     return S_OK;
1197 }
1198
1199 /* IPin */
1200 static HRESULT WINAPI
1201 SampleGrabber_IPin_QueryAccept(IPin *iface, const AM_MEDIA_TYPE *mtype)
1202 {
1203     TRACE("(%p)\n", mtype);
1204     return S_OK;
1205 }
1206
1207 /* IPin */
1208 static HRESULT WINAPI
1209 SampleGrabber_IPin_EnumMediaTypes(IPin *iface, IEnumMediaTypes **mtypes)
1210 {
1211     SG_Pin *This = (SG_Pin *)iface;
1212     TRACE("(%p)->(%p)\n", This, mtypes);
1213     if (!mtypes)
1214         return E_POINTER;
1215     *mtypes = mediaenum_create(&This->sg->mtype);
1216     return *mtypes ? S_OK : E_OUTOFMEMORY;
1217 }
1218
1219 /* IPin - input pin */
1220 static HRESULT WINAPI
1221 SampleGrabber_In_IPin_QueryInternalConnections(IPin *iface, IPin **pins, ULONG *nPins)
1222 {
1223     SG_Pin *This = (SG_Pin *)iface;
1224     TRACE("(%p)->(%p, %p) size = %u\n", This, pins, nPins, (nPins ? *nPins : 0));
1225     if (!nPins)
1226         return E_POINTER;
1227     if (*nPins) {
1228         if (!pins)
1229             return E_POINTER;
1230         IPin_AddRef((IPin*)&This->sg->pin_out.lpVtbl);
1231         *pins = (IPin*)&This->sg->pin_out.lpVtbl;
1232         *nPins = 1;
1233         return S_OK;
1234     }
1235     *nPins = 1;
1236     return S_FALSE;
1237 }
1238
1239 /* IPin - output pin */
1240 static HRESULT WINAPI
1241 SampleGrabber_Out_IPin_QueryInternalConnections(IPin *iface, IPin **pins, ULONG *nPins)
1242 {
1243     WARN("(%p, %p): unexpected\n", pins, nPins);
1244     if (nPins)
1245         *nPins = 0;
1246     return E_NOTIMPL;
1247 }
1248
1249 /* IPin */
1250 static HRESULT WINAPI
1251 SampleGrabber_IPin_EndOfStream(IPin *iface)
1252 {
1253     FIXME(": stub\n");
1254     return S_OK;
1255 }
1256
1257 /* IPin */
1258 static HRESULT WINAPI
1259 SampleGrabber_IPin_BeginFlush(IPin *iface)
1260 {
1261     FIXME(": stub\n");
1262     return S_OK;
1263 }
1264
1265 /* IPin */
1266 static HRESULT WINAPI
1267 SampleGrabber_IPin_EndFlush(IPin *iface)
1268 {
1269     FIXME(": stub\n");
1270     return S_OK;
1271 }
1272
1273 /* IPin */
1274 static HRESULT WINAPI
1275 SampleGrabber_IPin_NewSegment(IPin *iface, REFERENCE_TIME tStart, REFERENCE_TIME tStop, double rate)
1276 {
1277     FIXME(": stub\n");
1278     return S_OK;
1279 }
1280
1281
1282 /* SampleGrabber vtables and constructor */
1283
1284 static const IBaseFilterVtbl IBaseFilter_VTable =
1285 {
1286     SampleGrabber_IBaseFilter_QueryInterface,
1287     SampleGrabber_IBaseFilter_AddRef,
1288     SampleGrabber_IBaseFilter_Release,
1289     SampleGrabber_IBaseFilter_GetClassID,
1290     SampleGrabber_IBaseFilter_Stop,
1291     SampleGrabber_IBaseFilter_Pause,
1292     SampleGrabber_IBaseFilter_Run,
1293     SampleGrabber_IBaseFilter_GetState,
1294     SampleGrabber_IBaseFilter_SetSyncSource,
1295     SampleGrabber_IBaseFilter_GetSyncSource,
1296     SampleGrabber_IBaseFilter_EnumPins,
1297     SampleGrabber_IBaseFilter_FindPin,
1298     SampleGrabber_IBaseFilter_QueryFilterInfo,
1299     SampleGrabber_IBaseFilter_JoinFilterGraph,
1300     SampleGrabber_IBaseFilter_QueryVendorInfo,
1301 };
1302
1303 static const ISampleGrabberVtbl ISampleGrabber_VTable =
1304 {
1305     SampleGrabber_ISampleGrabber_QueryInterface,
1306     SampleGrabber_ISampleGrabber_AddRef,
1307     SampleGrabber_ISampleGrabber_Release,
1308     SampleGrabber_ISampleGrabber_SetOneShot,
1309     SampleGrabber_ISampleGrabber_SetMediaType,
1310     SampleGrabber_ISampleGrabber_GetConnectedMediaType,
1311     SampleGrabber_ISampleGrabber_SetBufferSamples,
1312     SampleGrabber_ISampleGrabber_GetCurrentBuffer,
1313     SampleGrabber_ISampleGrabber_GetCurrentSample,
1314     SampleGrabber_ISampleGrabber_SetCallback,
1315 };
1316
1317 static const IMemInputPinVtbl IMemInputPin_VTable =
1318 {
1319     SampleGrabber_IMemInputPin_QueryInterface,
1320     SampleGrabber_IMemInputPin_AddRef,
1321     SampleGrabber_IMemInputPin_Release,
1322     SampleGrabber_IMemInputPin_GetAllocator,
1323     SampleGrabber_IMemInputPin_NotifyAllocator,
1324     SampleGrabber_IMemInputPin_GetAllocatorRequirements,
1325     SampleGrabber_IMemInputPin_Receive,
1326     SampleGrabber_IMemInputPin_ReceiveMultiple,
1327     SampleGrabber_IMemInputPin_ReceiveCanBlock,
1328 };
1329
1330 static const IPinVtbl IPin_In_VTable =
1331 {
1332     SampleGrabber_IPin_QueryInterface,
1333     SampleGrabber_IPin_AddRef,
1334     SampleGrabber_IPin_Release,
1335     SampleGrabber_In_IPin_Connect,
1336     SampleGrabber_In_IPin_ReceiveConnection,
1337     SampleGrabber_In_IPin_Disconnect,
1338     SampleGrabber_IPin_ConnectedTo,
1339     SampleGrabber_IPin_ConnectionMediaType,
1340     SampleGrabber_IPin_QueryPinInfo,
1341     SampleGrabber_IPin_QueryDirection,
1342     SampleGrabber_IPin_QueryId,
1343     SampleGrabber_IPin_QueryAccept,
1344     SampleGrabber_IPin_EnumMediaTypes,
1345     SampleGrabber_In_IPin_QueryInternalConnections,
1346     SampleGrabber_IPin_EndOfStream,
1347     SampleGrabber_IPin_BeginFlush,
1348     SampleGrabber_IPin_EndFlush,
1349     SampleGrabber_IPin_NewSegment,
1350 };
1351
1352 static const IPinVtbl IPin_Out_VTable =
1353 {
1354     SampleGrabber_IPin_QueryInterface,
1355     SampleGrabber_IPin_AddRef,
1356     SampleGrabber_IPin_Release,
1357     SampleGrabber_Out_IPin_Connect,
1358     SampleGrabber_Out_IPin_ReceiveConnection,
1359     SampleGrabber_Out_IPin_Disconnect,
1360     SampleGrabber_IPin_ConnectedTo,
1361     SampleGrabber_IPin_ConnectionMediaType,
1362     SampleGrabber_IPin_QueryPinInfo,
1363     SampleGrabber_IPin_QueryDirection,
1364     SampleGrabber_IPin_QueryId,
1365     SampleGrabber_IPin_QueryAccept,
1366     SampleGrabber_IPin_EnumMediaTypes,
1367     SampleGrabber_Out_IPin_QueryInternalConnections,
1368     SampleGrabber_IPin_EndOfStream,
1369     SampleGrabber_IPin_BeginFlush,
1370     SampleGrabber_IPin_EndFlush,
1371     SampleGrabber_IPin_NewSegment,
1372 };
1373
1374 HRESULT SampleGrabber_create(IUnknown *pUnkOuter, LPVOID *ppv)
1375 {
1376     SG_Impl* obj = NULL;
1377
1378     TRACE("(%p,%p)\n", ppv, pUnkOuter);
1379
1380     if (pUnkOuter)
1381         return CLASS_E_NOAGGREGATION;
1382
1383     obj = CoTaskMemAlloc(sizeof(SG_Impl));
1384     if (NULL == obj) {
1385         *ppv = NULL;
1386         return E_OUTOFMEMORY;
1387     }
1388     ZeroMemory(obj, sizeof(SG_Impl));
1389
1390     obj->refCount = 1;
1391     obj->IBaseFilter_Vtbl = &IBaseFilter_VTable;
1392     obj->ISampleGrabber_Vtbl = &ISampleGrabber_VTable;
1393     obj->IMemInputPin_Vtbl = &IMemInputPin_VTable;
1394     obj->pin_in.lpVtbl = &IPin_In_VTable;
1395     obj->pin_in.dir = PINDIR_INPUT;
1396     obj->pin_in.name = pin_in_name;
1397     obj->pin_in.sg = obj;
1398     obj->pin_in.pair = NULL;
1399     obj->pin_out.lpVtbl = &IPin_Out_VTable;
1400     obj->pin_out.dir = PINDIR_OUTPUT;
1401     obj->pin_out.name = pin_out_name;
1402     obj->pin_out.sg = obj;
1403     obj->pin_out.pair = NULL;
1404     obj->info.achName[0] = 0;
1405     obj->info.pGraph = NULL;
1406     obj->state = State_Stopped;
1407     obj->mtype.majortype = GUID_NULL;
1408     obj->mtype.subtype = MEDIASUBTYPE_None;
1409     obj->mtype.formattype = FORMAT_None;
1410     obj->allocator = NULL;
1411     obj->refClock = NULL;
1412     obj->memOutput = NULL;
1413     obj->grabberIface = NULL;
1414     obj->grabberMethod = -1;
1415     obj->oneShot = OneShot_None;
1416     *ppv = obj;
1417
1418     return S_OK;
1419 }