dlls/strmbase/pospass.c

   1 /*
   2  * Filter Seeking and Control Interfaces
   3  *
   4  * Copyright 2003 Robert Shearman
   5  * Copyright 2012 Aric Stewart, CodeWeavers
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21 /* FIXME: critical sections */
  22
  23 #define COBJMACROS
  24
  25 #include "dshow.h"
  26 #include "uuids.h"
  27
  28 #include "wine/debug.h"
  29 #include "wine/strmbase.h"
  30
  31 #include <assert.h>
  32
  33 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
  34
  35 static const IMediaSeekingVtbl IMediaSeekingPassThru_Vtbl;
  36 static const IMediaPositionVtbl IMediaPositionPassThru_Vtbl;
  37
  38 typedef struct PassThruImpl {
  39     IUnknown  IUnknown_inner;
  40     ISeekingPassThru ISeekingPassThru_iface;
  41     IMediaSeeking IMediaSeeking_iface;
  42     IMediaPosition IMediaPosition_iface;
  43     BaseDispatch baseDispatch;
  44
  45     LONG ref;
  46     IUnknown * outer_unk;
  47     IPin * pin;
  48     BOOL bUnkOuterValid;
  49     BOOL bAggregatable;
  50     BOOL renderer;
  51     CRITICAL_SECTION time_cs;
  52     BOOL timevalid;
  53     REFERENCE_TIME time_earliest;
  54 } PassThruImpl;
  55
  56 static inline PassThruImpl *impl_from_IUnknown_inner(IUnknown *iface)
  57 {
  58     return CONTAINING_RECORD(iface, PassThruImpl, IUnknown_inner);
  59 }
  60
  61 static inline PassThruImpl *impl_from_ISeekingPassThru(ISeekingPassThru *iface)
  62 {
  63     return CONTAINING_RECORD(iface, PassThruImpl, ISeekingPassThru_iface);
  64 }
  65
  66 static inline PassThruImpl *impl_from_IMediaSeeking(IMediaSeeking *iface)
  67 {
  68     return CONTAINING_RECORD(iface, PassThruImpl, IMediaSeeking_iface);
  69 }
  70
  71 static inline PassThruImpl *impl_from_IMediaPosition(IMediaPosition *iface)
  72 {
  73     return CONTAINING_RECORD(iface, PassThruImpl, IMediaPosition_iface);
  74 }
  75
  76 static HRESULT WINAPI SeekInner_QueryInterface(IUnknown * iface,
  77                                           REFIID riid,
  78                                           LPVOID *ppvObj) {
  79     PassThruImpl *This = impl_from_IUnknown_inner(iface);
  80     TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), ppvObj);
  81
  82     if (This->bAggregatable)
  83         This->bUnkOuterValid = TRUE;
  84
  85     if (IsEqualGUID(&IID_IUnknown, riid))
  86     {
  87         *ppvObj = &(This->IUnknown_inner);
  88         TRACE("   returning IUnknown interface (%p)\n", *ppvObj);
  89     } else if (IsEqualGUID(&IID_ISeekingPassThru, riid)) {
  90         *ppvObj = &(This->ISeekingPassThru_iface);
  91         TRACE("   returning ISeekingPassThru interface (%p)\n", *ppvObj);
  92     } else if (IsEqualGUID(&IID_IMediaSeeking, riid)) {
  93         *ppvObj = &(This->IMediaSeeking_iface);
  94         TRACE("   returning IMediaSeeking interface (%p)\n", *ppvObj);
  95     } else if (IsEqualGUID(&IID_IMediaPosition, riid)) {
  96         *ppvObj = &(This->IMediaPosition_iface);
  97         TRACE("   returning IMediaPosition interface (%p)\n", *ppvObj);
  98     } else {
  99         *ppvObj = NULL;
 100         FIXME("unknown interface %s\n", debugstr_guid(riid));
 101         return E_NOINTERFACE;
 102     }
 103
 104     IUnknown_AddRef((IUnknown *)(*ppvObj));
 105     return S_OK;
 106 }
 107
 108 static ULONG WINAPI SeekInner_AddRef(IUnknown * iface) {
 109     PassThruImpl *This = impl_from_IUnknown_inner(iface);
 110     ULONG ref = InterlockedIncrement(&This->ref);
 111
 112     TRACE("(%p)->(): new ref = %d\n", This, ref);
 113
 114     return ref;
 115 }
 116
 117 static ULONG WINAPI SeekInner_Release(IUnknown * iface) {
 118     PassThruImpl *This = impl_from_IUnknown_inner(iface);
 119     ULONG ref = InterlockedDecrement(&This->ref);
 120
 121     TRACE("(%p)->(): new ref = %d\n", This, ref);
 122
 123     if (ref == 0)
 124     {
 125         BaseDispatch_Destroy(&This->baseDispatch);
 126         This->time_cs.DebugInfo->Spare[0] = 0;
 127         DeleteCriticalSection(&This->time_cs);
 128         CoTaskMemFree(This);
 129     }
 130     return ref;
 131 }
 132
 133 static const IUnknownVtbl IInner_VTable =
 134 {
 135     SeekInner_QueryInterface,
 136     SeekInner_AddRef,
 137     SeekInner_Release
 138 };
 139
 140 /* Generic functions for aggregation */
 141 static HRESULT SeekOuter_QueryInterface(PassThruImpl *This, REFIID riid, LPVOID *ppv)
 142 {
 143     if (This->bAggregatable)
 144         This->bUnkOuterValid = TRUE;
 145
 146     if (This->outer_unk)
 147     {
 148         if (This->bAggregatable)
 149             return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
 150
 151         if (IsEqualIID(riid, &IID_IUnknown))
 152         {
 153             HRESULT hr;
 154
 155             IUnknown_AddRef(&This->IUnknown_inner);
 156             hr = IUnknown_QueryInterface(&This->IUnknown_inner, riid, ppv);
 157             IUnknown_Release(&This->IUnknown_inner);
 158             This->bAggregatable = TRUE;
 159             return hr;
 160         }
 161
 162         *ppv = NULL;
 163         return E_NOINTERFACE;
 164     }
 165
 166     return IUnknown_QueryInterface(&This->IUnknown_inner, riid, ppv);
 167 }
 168
 169 static ULONG SeekOuter_AddRef(PassThruImpl *This)
 170 {
 171     if (This->outer_unk && This->bUnkOuterValid)
 172         return IUnknown_AddRef(This->outer_unk);
 173     return IUnknown_AddRef(&This->IUnknown_inner);
 174 }
 175
 176 static ULONG SeekOuter_Release(PassThruImpl *This)
 177 {
 178     if (This->outer_unk && This->bUnkOuterValid)
 179         return IUnknown_Release(This->outer_unk);
 180     return IUnknown_Release(&This->IUnknown_inner);
 181 }
 182
 183 static HRESULT WINAPI SeekingPassThru_QueryInterface(ISeekingPassThru *iface, REFIID riid, LPVOID *ppvObj)
 184 {
 185     PassThruImpl *This = impl_from_ISeekingPassThru(iface);
 186
 187     TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppvObj);
 188
 189     return SeekOuter_QueryInterface(This, riid, ppvObj);
 190 }
 191
 192 static ULONG WINAPI SeekingPassThru_AddRef(ISeekingPassThru *iface)
 193 {
 194     PassThruImpl *This = impl_from_ISeekingPassThru(iface);
 195
 196     TRACE("(%p/%p)->()\n", This, iface);
 197
 198     return SeekOuter_AddRef(This);
 199 }
 200
 201 static ULONG WINAPI SeekingPassThru_Release(ISeekingPassThru *iface)
 202 {
 203     PassThruImpl *This = impl_from_ISeekingPassThru(iface);
 204
 205     TRACE("(%p/%p)->()\n", This, iface);
 206
 207     return SeekOuter_Release(This);
 208 }
 209
 210 static HRESULT WINAPI SeekingPassThru_Init(ISeekingPassThru *iface, BOOL renderer, IPin *pin)
 211 {
 212     PassThruImpl *This = impl_from_ISeekingPassThru(iface);
 213
 214     TRACE("(%p/%p)->(%d, %p)\n", This, iface, renderer, pin);
 215
 216     if (This->pin)
 217         FIXME("Re-initializing?\n");
 218
 219     This->renderer = renderer;
 220     This->pin = pin;
 221
 222     return S_OK;
 223 }
 224
 225 static const ISeekingPassThruVtbl ISeekingPassThru_Vtbl =
 226 {
 227     SeekingPassThru_QueryInterface,
 228     SeekingPassThru_AddRef,
 229     SeekingPassThru_Release,
 230     SeekingPassThru_Init
 231 };
 232
 233 HRESULT WINAPI CreatePosPassThru(IUnknown* pUnkOuter, BOOL bRenderer, IPin *pPin, IUnknown **ppPassThru)
 234 {
 235     HRESULT hr;
 236     ISeekingPassThru *passthru;
 237
 238     hr = CoCreateInstance(&CLSID_SeekingPassThru, pUnkOuter, CLSCTX_INPROC_SERVER, &IID_IUnknown, (void**)ppPassThru);
 239     if (FAILED(hr))
 240         return hr;
 241
 242     IUnknown_QueryInterface(*ppPassThru, &IID_ISeekingPassThru, (void**)&passthru);
 243     hr = ISeekingPassThru_Init(passthru, bRenderer, pPin);
 244     ISeekingPassThru_Release(passthru);
 245
 246     return hr;
 247 }
 248
 249 HRESULT WINAPI PosPassThru_Construct(IUnknown *pUnkOuter, LPVOID *ppPassThru)
 250 {
 251     PassThruImpl *fimpl;
 252
 253     TRACE("(%p,%p)\n", pUnkOuter, ppPassThru);
 254
 255     *ppPassThru = fimpl = CoTaskMemAlloc(sizeof(*fimpl));
 256     if (!fimpl)
 257         return E_OUTOFMEMORY;
 258
 259     fimpl->outer_unk = pUnkOuter;
 260     fimpl->bUnkOuterValid = FALSE;
 261     fimpl->bAggregatable = FALSE;
 262     fimpl->IUnknown_inner.lpVtbl = &IInner_VTable;
 263     fimpl->ISeekingPassThru_iface.lpVtbl = &ISeekingPassThru_Vtbl;
 264     fimpl->IMediaSeeking_iface.lpVtbl = &IMediaSeekingPassThru_Vtbl;
 265     fimpl->IMediaPosition_iface.lpVtbl = &IMediaPositionPassThru_Vtbl;
 266     fimpl->ref = 1;
 267     fimpl->pin = NULL;
 268     fimpl->timevalid = FALSE;
 269     InitializeCriticalSection(&fimpl->time_cs);
 270     fimpl->time_cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PassThruImpl.time_cs");
 271     BaseDispatch_Init(&fimpl->baseDispatch, &IID_IMediaPosition);
 272     return S_OK;
 273 }
 274
 275 static HRESULT WINAPI MediaSeekingPassThru_QueryInterface(IMediaSeeking *iface, REFIID riid, LPVOID *ppvObj)
 276 {
 277     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 278
 279     TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppvObj);
 280
 281     return SeekOuter_QueryInterface(This, riid, ppvObj);
 282 }
 283
 284 static ULONG WINAPI MediaSeekingPassThru_AddRef(IMediaSeeking *iface)
 285 {
 286     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 287
 288     TRACE("(%p/%p)->()\n", iface, This);
 289
 290     return SeekOuter_AddRef(This);
 291 }
 292
 293 static ULONG WINAPI MediaSeekingPassThru_Release(IMediaSeeking *iface)
 294 {
 295     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 296
 297     TRACE("(%p/%p)->()\n", iface, This);
 298
 299     return SeekOuter_Release(This);
 300 }
 301
 302 static HRESULT get_connected(PassThruImpl *This, REFIID riid, LPVOID *ppvObj) {
 303     HRESULT hr;
 304     IPin *pin;
 305     *ppvObj = NULL;
 306     hr = IPin_ConnectedTo(This->pin, &pin);
 307     if (FAILED(hr))
 308         return VFW_E_NOT_CONNECTED;
 309     hr = IPin_QueryInterface(pin, riid, ppvObj);
 310     IPin_Release(pin);
 311     if (FAILED(hr))
 312         hr = E_NOTIMPL;
 313     return hr;
 314 }
 315
 316 static HRESULT WINAPI MediaSeekingPassThru_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
 317 {
 318     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 319     IMediaSeeking *seek;
 320     HRESULT hr;
 321     TRACE("(%p/%p)->(%p)\n", iface, This, pCapabilities);
 322     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 323     if (SUCCEEDED(hr)) {
 324         hr = IMediaSeeking_GetCapabilities(seek, pCapabilities);
 325         IMediaSeeking_Release(seek);
 326     }
 327     else
 328         return E_NOTIMPL;
 329     return hr;
 330 }
 331
 332 static HRESULT WINAPI MediaSeekingPassThru_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
 333 {
 334     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 335     IMediaSeeking *seek;
 336     HRESULT hr;
 337     TRACE("(%p/%p)->(%p)\n", iface, This, pCapabilities);
 338     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 339     if (SUCCEEDED(hr)) {
 340         hr = IMediaSeeking_CheckCapabilities(seek, pCapabilities);
 341         IMediaSeeking_Release(seek);
 342     }
 343     else
 344         return E_NOTIMPL;
 345     return hr;
 346 }
 347
 348 static HRESULT WINAPI MediaSeekingPassThru_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
 349 {
 350     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 351     IMediaSeeking *seek;
 352     HRESULT hr;
 353     TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
 354     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 355     if (SUCCEEDED(hr)) {
 356         hr = IMediaSeeking_IsFormatSupported(seek, pFormat);
 357         IMediaSeeking_Release(seek);
 358     }
 359     else
 360         return E_NOTIMPL;
 361     return hr;
 362 }
 363
 364 static HRESULT WINAPI MediaSeekingPassThru_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
 365 {
 366     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 367     IMediaSeeking *seek;
 368     HRESULT hr;
 369     TRACE("(%p/%p)->(%p)\n", iface, This, pFormat);
 370     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 371     if (SUCCEEDED(hr)) {
 372         hr = IMediaSeeking_QueryPreferredFormat(seek, pFormat);
 373         IMediaSeeking_Release(seek);
 374     }
 375     else
 376         return E_NOTIMPL;
 377     return hr;
 378 }
 379
 380 static HRESULT WINAPI MediaSeekingPassThru_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
 381 {
 382     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 383     IMediaSeeking *seek;
 384     HRESULT hr;
 385     TRACE("(%p/%p)->(%p)\n", iface, This, pFormat);
 386     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 387     if (SUCCEEDED(hr)) {
 388         hr = IMediaSeeking_GetTimeFormat(seek, pFormat);
 389         IMediaSeeking_Release(seek);
 390     }
 391     else
 392         return E_NOTIMPL;
 393     return hr;
 394 }
 395
 396 static HRESULT WINAPI MediaSeekingPassThru_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 397 {
 398     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 399     IMediaSeeking *seek;
 400     HRESULT hr;
 401     TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
 402     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 403     if (SUCCEEDED(hr)) {
 404         hr = IMediaSeeking_IsUsingTimeFormat(seek, pFormat);
 405         IMediaSeeking_Release(seek);
 406     }
 407     else
 408         return E_NOTIMPL;
 409     return hr;
 410 }
 411
 412 static HRESULT WINAPI MediaSeekingPassThru_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 413 {
 414     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 415     IMediaSeeking *seek;
 416     HRESULT hr;
 417     TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
 418     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 419     if (SUCCEEDED(hr)) {
 420         hr = IMediaSeeking_SetTimeFormat(seek, pFormat);
 421         IMediaSeeking_Release(seek);
 422     }
 423     else
 424         return E_NOTIMPL;
 425     return hr;
 426 }
 427
 428 static HRESULT WINAPI MediaSeekingPassThru_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
 429 {
 430     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 431     IMediaSeeking *seek;
 432     HRESULT hr;
 433     TRACE("(%p/%p)->(%p)\n", iface, This, pDuration);
 434     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 435     if (SUCCEEDED(hr)) {
 436         hr = IMediaSeeking_GetDuration(seek, pDuration);
 437         IMediaSeeking_Release(seek);
 438     }
 439     else
 440         return E_NOTIMPL;
 441     return hr;
 442 }
 443
 444 static HRESULT WINAPI MediaSeekingPassThru_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
 445 {
 446     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 447     IMediaSeeking *seek;
 448     HRESULT hr;
 449     TRACE("(%p/%p)->(%p)\n", iface, This, pStop);
 450     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 451     if (SUCCEEDED(hr)) {
 452         hr = IMediaSeeking_GetStopPosition(seek, pStop);
 453         IMediaSeeking_Release(seek);
 454     }
 455     else
 456         return E_NOTIMPL;
 457     return hr;
 458 }
 459
 460 static HRESULT WINAPI MediaSeekingPassThru_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
 461 {
 462     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 463     IMediaSeeking *seek;
 464     HRESULT hr = S_OK;
 465     TRACE("(%p/%p)->(%p)\n", iface, This, pCurrent);
 466     if (!pCurrent)
 467         return E_POINTER;
 468     EnterCriticalSection(&This->time_cs);
 469     if (This->timevalid)
 470         *pCurrent = This->time_earliest;
 471     else
 472         hr = E_FAIL;
 473     LeaveCriticalSection(&This->time_cs);
 474     if (SUCCEEDED(hr)) {
 475         hr = IMediaSeeking_ConvertTimeFormat(iface, pCurrent, NULL, *pCurrent, &TIME_FORMAT_MEDIA_TIME);
 476         return hr;
 477     }
 478     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 479     if (SUCCEEDED(hr)) {
 480         hr = IMediaSeeking_GetCurrentPosition(seek, pCurrent);
 481         IMediaSeeking_Release(seek);
 482     }
 483     else
 484         return E_NOTIMPL;
 485     return hr;
 486 }
 487
 488 static HRESULT WINAPI MediaSeekingPassThru_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
 489 {
 490     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 491     IMediaSeeking *seek;
 492     HRESULT hr;
 493     TRACE("(%p/%p)->(%p,%s,%x%08x,%s)\n", iface, This, pTarget, debugstr_guid(pTargetFormat), (DWORD)(Source>>32), (DWORD)Source, debugstr_guid(pSourceFormat));
 494     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 495     if (SUCCEEDED(hr)) {
 496         hr = IMediaSeeking_ConvertTimeFormat(seek, pTarget, pTargetFormat, Source, pSourceFormat);
 497         IMediaSeeking_Release(seek);
 498     }
 499     else
 500         return E_NOTIMPL;
 501     return hr;
 502 }
 503
 504 static HRESULT WINAPI MediaSeekingPassThru_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
 505 {
 506     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 507     IMediaSeeking *seek;
 508     HRESULT hr;
 509     TRACE("(%p/%p)->(%p,%x,%p,%x)\n", iface, This, pCurrent, dwCurrentFlags, pStop, dwStopFlags);
 510     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 511     if (SUCCEEDED(hr)) {
 512         hr = IMediaSeeking_SetPositions(seek, pCurrent, dwCurrentFlags, pStop, dwStopFlags);
 513         IMediaSeeking_Release(seek);
 514     } else if (hr == VFW_E_NOT_CONNECTED)
 515         hr = S_OK;
 516     return hr;
 517 }
 518
 519 static HRESULT WINAPI MediaSeekingPassThru_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
 520 {
 521     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 522     IMediaSeeking *seek;
 523     HRESULT hr;
 524     TRACE("(%p/%p)->(%p, %p)\n", iface, This, pCurrent, pStop);
 525     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 526     if (SUCCEEDED(hr)) {
 527         hr = IMediaSeeking_GetPositions(seek, pCurrent, pStop);
 528         IMediaSeeking_Release(seek);
 529     }
 530     else
 531         return E_NOTIMPL;
 532     return hr;
 533 }
 534
 535 static HRESULT WINAPI MediaSeekingPassThru_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
 536 {
 537     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 538     IMediaSeeking *seek;
 539     HRESULT hr;
 540     TRACE("(%p/%p)->(%p,%p)\n", iface, This, pEarliest, pLatest);
 541     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 542     if (SUCCEEDED(hr)) {
 543         hr = IMediaSeeking_GetAvailable(seek, pEarliest, pLatest);
 544         IMediaSeeking_Release(seek);
 545     }
 546     else
 547         return E_NOTIMPL;
 548     return hr;
 549 }
 550
 551 static HRESULT WINAPI MediaSeekingPassThru_SetRate(IMediaSeeking * iface, double dRate)
 552 {
 553     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 554     IMediaSeeking *seek;
 555     HRESULT hr;
 556     TRACE("(%p/%p)->(%e)\n", iface, This, dRate);
 557     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 558     if (SUCCEEDED(hr)) {
 559         hr = IMediaSeeking_SetRate(seek, dRate);
 560         IMediaSeeking_Release(seek);
 561     }
 562     else
 563         return E_NOTIMPL;
 564     return hr;
 565 }
 566
 567 static HRESULT WINAPI MediaSeekingPassThru_GetRate(IMediaSeeking * iface, double * dRate)
 568 {
 569     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 570     IMediaSeeking *seek;
 571     HRESULT hr;
 572     TRACE("(%p/%p)->(%p)\n", iface, This, dRate);
 573     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 574     if (SUCCEEDED(hr)) {
 575         hr = IMediaSeeking_GetRate(seek, dRate);
 576         IMediaSeeking_Release(seek);
 577     }
 578     else
 579         return E_NOTIMPL;
 580     return hr;
 581 }
 582
 583 static HRESULT WINAPI MediaSeekingPassThru_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
 584 {
 585     PassThruImpl *This = impl_from_IMediaSeeking(iface);
 586     IMediaSeeking *seek;
 587     HRESULT hr;
 588     TRACE("(%p)\n", pPreroll);
 589     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 590     if (SUCCEEDED(hr)) {
 591         hr = IMediaSeeking_GetPreroll(seek, pPreroll);
 592         IMediaSeeking_Release(seek);
 593     }
 594     else
 595         return E_NOTIMPL;
 596     return hr;
 597 }
 598
 599 HRESULT WINAPI RendererPosPassThru_RegisterMediaTime(IUnknown *iface, REFERENCE_TIME start)
 600 {
 601     PassThruImpl *This = impl_from_IUnknown_inner(iface);
 602     EnterCriticalSection(&This->time_cs);
 603     This->time_earliest = start;
 604     This->timevalid = TRUE;
 605     LeaveCriticalSection(&This->time_cs);
 606     return S_OK;
 607 }
 608
 609 HRESULT WINAPI RendererPosPassThru_ResetMediaTime(IUnknown *iface)
 610 {
 611     PassThruImpl *This = impl_from_IUnknown_inner(iface);
 612     EnterCriticalSection(&This->time_cs);
 613     This->timevalid = FALSE;
 614     LeaveCriticalSection(&This->time_cs);
 615     return S_OK;
 616 }
 617
 618 HRESULT WINAPI RendererPosPassThru_EOS(IUnknown *iface)
 619 {
 620     PassThruImpl *This = impl_from_IUnknown_inner(iface);
 621     REFERENCE_TIME time;
 622     HRESULT hr;
 623     hr = IMediaSeeking_GetStopPosition(&This->IMediaSeeking_iface, &time);
 624     EnterCriticalSection(&This->time_cs);
 625     if (SUCCEEDED(hr)) {
 626         This->timevalid = TRUE;
 627         This->time_earliest = time;
 628     } else
 629         This->timevalid = FALSE;
 630     LeaveCriticalSection(&This->time_cs);
 631     return hr;
 632 }
 633
 634 static const IMediaSeekingVtbl IMediaSeekingPassThru_Vtbl =
 635 {
 636     MediaSeekingPassThru_QueryInterface,
 637     MediaSeekingPassThru_AddRef,
 638     MediaSeekingPassThru_Release,
 639     MediaSeekingPassThru_GetCapabilities,
 640     MediaSeekingPassThru_CheckCapabilities,
 641     MediaSeekingPassThru_IsFormatSupported,
 642     MediaSeekingPassThru_QueryPreferredFormat,
 643     MediaSeekingPassThru_GetTimeFormat,
 644     MediaSeekingPassThru_IsUsingTimeFormat,
 645     MediaSeekingPassThru_SetTimeFormat,
 646     MediaSeekingPassThru_GetDuration,
 647     MediaSeekingPassThru_GetStopPosition,
 648     MediaSeekingPassThru_GetCurrentPosition,
 649     MediaSeekingPassThru_ConvertTimeFormat,
 650     MediaSeekingPassThru_SetPositions,
 651     MediaSeekingPassThru_GetPositions,
 652     MediaSeekingPassThru_GetAvailable,
 653     MediaSeekingPassThru_SetRate,
 654     MediaSeekingPassThru_GetRate,
 655     MediaSeekingPassThru_GetPreroll
 656 };
 657
 658 static HRESULT WINAPI MediaPositionPassThru_QueryInterface(IMediaPosition *iface, REFIID riid, LPVOID *ppvObj)
 659 {
 660     PassThruImpl *This = impl_from_IMediaPosition(iface);
 661
 662     TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppvObj);
 663
 664     return SeekOuter_QueryInterface(This, riid, ppvObj);
 665 }
 666
 667 static ULONG WINAPI MediaPositionPassThru_AddRef(IMediaPosition *iface)
 668 {
 669     PassThruImpl *This = impl_from_IMediaPosition(iface);
 670
 671     TRACE("(%p/%p)->()\n", iface, This);
 672
 673     return SeekOuter_AddRef(This);
 674 }
 675
 676 static ULONG WINAPI MediaPositionPassThru_Release(IMediaPosition *iface)
 677 {
 678     PassThruImpl *This = impl_from_IMediaPosition(iface);
 679
 680     TRACE("(%p/%p)->()\n", iface, This);
 681
 682     return SeekOuter_Release(This);
 683 }
 684
 685 static HRESULT WINAPI MediaPositionPassThru_GetTypeInfoCount(IMediaPosition *iface, UINT*pctinfo)
 686 {
 687     PassThruImpl *This = impl_from_IMediaPosition(iface);
 688
 689     return BaseDispatchImpl_GetTypeInfoCount(&This->baseDispatch, pctinfo);
 690 }
 691
 692 static HRESULT WINAPI MediaPositionPassThru_GetTypeInfo(IMediaPosition *iface, UINT iTInfo, LCID lcid, ITypeInfo**ppTInfo)
 693 {
 694     PassThruImpl *This = impl_from_IMediaPosition(iface);
 695
 696     return BaseDispatchImpl_GetTypeInfo(&This->baseDispatch, &IID_NULL, iTInfo, lcid, ppTInfo);
 697 }
 698
 699 static HRESULT WINAPI MediaPositionPassThru_GetIDsOfNames(IMediaPosition *iface, REFIID riid, LPOLESTR*rgszNames, UINT cNames, LCID lcid, DISPID*rgDispId)
 700 {
 701     PassThruImpl *This = impl_from_IMediaPosition(iface);
 702
 703     return BaseDispatchImpl_GetIDsOfNames(&This->baseDispatch, riid, rgszNames, cNames, lcid, rgDispId);
 704 }
 705
 706 static HRESULT WINAPI MediaPositionPassThru_Invoke(IMediaPosition *iface, DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS*pDispParams, VARIANT*pVarResult, EXCEPINFO*pExepInfo, UINT*puArgErr)
 707 {
 708     PassThruImpl *This = impl_from_IMediaPosition(iface);
 709     HRESULT hr = S_OK;
 710     ITypeInfo *pTypeInfo;
 711
 712     hr = BaseDispatchImpl_GetTypeInfo(&This->baseDispatch, riid, 1, lcid, &pTypeInfo);
 713     if (SUCCEEDED(hr))
 714     {
 715         hr = ITypeInfo_Invoke(pTypeInfo, &This->IMediaPosition_iface, dispIdMember, wFlags, pDispParams, pVarResult, pExepInfo, puArgErr);
 716         ITypeInfo_Release(pTypeInfo);
 717     }
 718
 719     return hr;
 720 }
 721
 722 static HRESULT WINAPI MediaPositionPassThru_get_Duration(IMediaPosition *iface, REFTIME *plength)
 723 {
 724     PassThruImpl *This = impl_from_IMediaPosition(iface);
 725     IMediaPosition *pos;
 726     HRESULT hr;
 727
 728     TRACE("(%p)\n", plength);
 729
 730     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 731     if (SUCCEEDED(hr)) {
 732         hr = IMediaPosition_get_Duration(pos, plength);
 733         IMediaPosition_Release(pos);
 734     }
 735     else
 736         return E_NOTIMPL;
 737     return hr;
 738 }
 739
 740 static HRESULT WINAPI MediaPositionPassThru_put_CurrentPosition(IMediaPosition *iface, REFTIME llTime)
 741 {
 742     PassThruImpl *This = impl_from_IMediaPosition(iface);
 743     IMediaPosition *pos;
 744     HRESULT hr;
 745
 746     TRACE("(%s)\n", wine_dbgstr_longlong(llTime));
 747
 748     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 749     if (SUCCEEDED(hr)) {
 750         hr = IMediaPosition_put_CurrentPosition(pos, llTime);
 751         IMediaPosition_Release(pos);
 752     }
 753     else
 754         return E_NOTIMPL;
 755     return hr;
 756 }
 757
 758 static HRESULT WINAPI MediaPositionPassThru_get_CurrentPosition(IMediaPosition *iface, REFTIME *pllTime)
 759 {
 760     PassThruImpl *This = impl_from_IMediaPosition(iface);
 761     IMediaPosition *pos;
 762     HRESULT hr;
 763
 764     TRACE("(%p)\n", pllTime);
 765
 766     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 767     if (SUCCEEDED(hr)) {
 768         hr = IMediaPosition_get_CurrentPosition(pos, pllTime);
 769         IMediaPosition_Release(pos);
 770     }
 771     else
 772         return E_NOTIMPL;
 773     return hr;
 774 }
 775
 776 static HRESULT WINAPI MediaPositionPassThru_get_StopTime(IMediaPosition *iface, REFTIME *pllTime)
 777 {
 778     PassThruImpl *This = impl_from_IMediaPosition(iface);
 779     IMediaPosition *pos;
 780     HRESULT hr;
 781
 782     TRACE("(%p)\n", pllTime);
 783
 784     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 785     if (SUCCEEDED(hr)) {
 786         hr = IMediaPosition_get_StopTime(pos, pllTime);
 787         IMediaPosition_Release(pos);
 788     }
 789     else
 790         return E_NOTIMPL;
 791     return hr;
 792 }
 793
 794 static HRESULT WINAPI MediaPositionPassThru_put_StopTime(IMediaPosition *iface, REFTIME llTime)
 795 {
 796     PassThruImpl *This = impl_from_IMediaPosition(iface);
 797     IMediaPosition *pos;
 798     HRESULT hr;
 799
 800     TRACE("(%s)\n", wine_dbgstr_longlong(llTime));
 801
 802     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 803     if (SUCCEEDED(hr)) {
 804         hr = IMediaPosition_put_StopTime(pos, llTime);
 805         IMediaPosition_Release(pos);
 806     }
 807     else
 808         return E_NOTIMPL;
 809     return hr;
 810 }
 811
 812 static HRESULT WINAPI MediaPositionPassThru_get_PrerollTime(IMediaPosition *iface, REFTIME *pllTime)
 813 {
 814     PassThruImpl *This = impl_from_IMediaPosition(iface);
 815     IMediaPosition *pos;
 816     HRESULT hr;
 817
 818     TRACE("(%p)\n", pllTime);
 819
 820     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 821     if (SUCCEEDED(hr)) {
 822         hr = IMediaPosition_get_PrerollTime(pos, pllTime);
 823         IMediaPosition_Release(pos);
 824     }
 825     else
 826         return E_NOTIMPL;
 827     return hr;
 828 }
 829
 830 static HRESULT WINAPI MediaPositionPassThru_put_PrerollTime(IMediaPosition *iface, REFTIME llTime)
 831 {
 832     PassThruImpl *This = impl_from_IMediaPosition(iface);
 833     IMediaPosition *pos;
 834     HRESULT hr;
 835
 836     TRACE("(%s)\n", wine_dbgstr_longlong(llTime));
 837
 838     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 839     if (SUCCEEDED(hr)) {
 840         hr = IMediaPosition_put_PrerollTime(pos, llTime);
 841         IMediaPosition_Release(pos);
 842     }
 843     else
 844         return E_NOTIMPL;
 845     return hr;
 846 }
 847
 848 static HRESULT WINAPI MediaPositionPassThru_put_Rate(IMediaPosition *iface, double dRate)
 849 {
 850     PassThruImpl *This = impl_from_IMediaPosition(iface);
 851     IMediaPosition *pos;
 852     HRESULT hr;
 853
 854     TRACE("(%f)\n", dRate);
 855
 856     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 857     if (SUCCEEDED(hr)) {
 858         hr = IMediaPosition_put_Rate(pos, dRate);
 859         IMediaPosition_Release(pos);
 860     }
 861     else
 862         return E_NOTIMPL;
 863     return hr;
 864 }
 865
 866 static HRESULT WINAPI MediaPositionPassThru_get_Rate(IMediaPosition *iface, double *pdRate)
 867 {
 868     PassThruImpl *This = impl_from_IMediaPosition(iface);
 869     IMediaPosition *pos;
 870     HRESULT hr;
 871
 872     TRACE("(%p)\n", pdRate);
 873
 874     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 875     if (SUCCEEDED(hr)) {
 876         hr = IMediaPosition_get_Rate(pos, pdRate);
 877         IMediaPosition_Release(pos);
 878     }
 879     else
 880         return E_NOTIMPL;
 881     return hr;
 882 }
 883
 884 static HRESULT WINAPI MediaPositionPassThru_CanSeekForward(IMediaPosition *iface, LONG *pCanSeekForward)
 885 {
 886     PassThruImpl *This = impl_from_IMediaPosition(iface);
 887     IMediaPosition *pos;
 888     HRESULT hr;
 889
 890     TRACE("(%p)\n", pCanSeekForward);
 891
 892     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 893     if (SUCCEEDED(hr)) {
 894         hr = IMediaPosition_CanSeekForward(pos, pCanSeekForward);
 895         IMediaPosition_Release(pos);
 896     }
 897     else
 898         return E_NOTIMPL;
 899     return hr;
 900 }
 901
 902 static HRESULT WINAPI MediaPositionPassThru_CanSeekBackward(IMediaPosition *iface, LONG *pCanSeekBackward)
 903 {
 904     PassThruImpl *This = impl_from_IMediaPosition(iface);
 905     IMediaPosition *pos;
 906     HRESULT hr;
 907
 908     TRACE("(%p)\n", pCanSeekBackward);
 909
 910     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 911     if (SUCCEEDED(hr)) {
 912         hr = IMediaPosition_CanSeekBackward(pos, pCanSeekBackward);
 913         IMediaPosition_Release(pos);
 914     }
 915     else
 916         return E_NOTIMPL;
 917     return hr;
 918 }
 919
 920 static const IMediaPositionVtbl IMediaPositionPassThru_Vtbl =
 921 {
 922     MediaPositionPassThru_QueryInterface,
 923     MediaPositionPassThru_AddRef,
 924     MediaPositionPassThru_Release,
 925     MediaPositionPassThru_GetTypeInfoCount,
 926     MediaPositionPassThru_GetTypeInfo,
 927     MediaPositionPassThru_GetIDsOfNames,
 928     MediaPositionPassThru_Invoke,
 929     MediaPositionPassThru_get_Duration,
 930     MediaPositionPassThru_put_CurrentPosition,
 931     MediaPositionPassThru_get_CurrentPosition,
 932     MediaPositionPassThru_get_StopTime,
 933     MediaPositionPassThru_put_StopTime,
 934     MediaPositionPassThru_get_PrerollTime,
 935     MediaPositionPassThru_put_PrerollTime,
 936     MediaPositionPassThru_put_Rate,
 937     MediaPositionPassThru_get_Rate,
 938     MediaPositionPassThru_CanSeekForward,
 939     MediaPositionPassThru_CanSeekBackward
 940 };