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 #include "strmbase_private.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(strmbase);
  26
  27 static struct strmbase_passthrough *impl_from_ISeekingPassThru(ISeekingPassThru *iface)
  28 {
  29     return CONTAINING_RECORD(iface, struct strmbase_passthrough, ISeekingPassThru_iface);
  30 }
  31
  32 static struct strmbase_passthrough *impl_from_IMediaSeeking(IMediaSeeking *iface)
  33 {
  34     return CONTAINING_RECORD(iface, struct strmbase_passthrough, IMediaSeeking_iface);
  35 }
  36
  37 static struct strmbase_passthrough *impl_from_IMediaPosition(IMediaPosition *iface)
  38 {
  39     return CONTAINING_RECORD(iface, struct strmbase_passthrough, IMediaPosition_iface);
  40 }
  41
  42 static HRESULT WINAPI SeekingPassThru_QueryInterface(ISeekingPassThru *iface, REFIID iid, void **out)
  43 {
  44     struct strmbase_passthrough *passthrough = impl_from_ISeekingPassThru(iface);
  45
  46     return IUnknown_QueryInterface(passthrough->outer_unk, iid, out);
  47 }
  48
  49 static ULONG WINAPI SeekingPassThru_AddRef(ISeekingPassThru *iface)
  50 {
  51     struct strmbase_passthrough *passthrough = impl_from_ISeekingPassThru(iface);
  52
  53     return IUnknown_AddRef(passthrough->outer_unk);
  54 }
  55
  56 static ULONG WINAPI SeekingPassThru_Release(ISeekingPassThru *iface)
  57 {
  58     struct strmbase_passthrough *passthrough = impl_from_ISeekingPassThru(iface);
  59
  60     return IUnknown_Release(passthrough->outer_unk);
  61 }
  62
  63 static HRESULT WINAPI SeekingPassThru_Init(ISeekingPassThru *iface, BOOL renderer, IPin *pin)
  64 {
  65     struct strmbase_passthrough *This = impl_from_ISeekingPassThru(iface);
  66
  67     TRACE("(%p/%p)->(%d, %p)\n", This, iface, renderer, pin);
  68
  69     if (This->pin)
  70         FIXME("Re-initializing?\n");
  71
  72     This->renderer = renderer;
  73     This->pin = pin;
  74
  75     return S_OK;
  76 }
  77
  78 static const ISeekingPassThruVtbl ISeekingPassThru_Vtbl =
  79 {
  80     SeekingPassThru_QueryInterface,
  81     SeekingPassThru_AddRef,
  82     SeekingPassThru_Release,
  83     SeekingPassThru_Init
  84 };
  85
  86 static HRESULT WINAPI MediaSeekingPassThru_QueryInterface(IMediaSeeking *iface, REFIID iid, void **out)
  87 {
  88     struct strmbase_passthrough *passthrough = impl_from_IMediaSeeking(iface);
  89
  90     return IUnknown_QueryInterface(passthrough->outer_unk, iid, out);
  91 }
  92
  93 static ULONG WINAPI MediaSeekingPassThru_AddRef(IMediaSeeking *iface)
  94 {
  95     struct strmbase_passthrough *passthrough = impl_from_IMediaSeeking(iface);
  96
  97     return IUnknown_AddRef(passthrough->outer_unk);
  98 }
  99
 100 static ULONG WINAPI MediaSeekingPassThru_Release(IMediaSeeking *iface)
 101 {
 102     struct strmbase_passthrough *passthrough = impl_from_IMediaSeeking(iface);
 103
 104     return IUnknown_Release(passthrough->outer_unk);
 105 }
 106
 107 static HRESULT get_connected(struct strmbase_passthrough *This, REFIID riid, void **ppvObj)
 108 {
 109     HRESULT hr;
 110     IPin *pin;
 111     *ppvObj = NULL;
 112     hr = IPin_ConnectedTo(This->pin, &pin);
 113     if (FAILED(hr))
 114         return VFW_E_NOT_CONNECTED;
 115     hr = IPin_QueryInterface(pin, riid, ppvObj);
 116     IPin_Release(pin);
 117     if (FAILED(hr))
 118         hr = E_NOTIMPL;
 119     return hr;
 120 }
 121
 122 static HRESULT WINAPI MediaSeekingPassThru_GetCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
 123 {
 124     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 125     IMediaSeeking *seek;
 126     HRESULT hr;
 127     TRACE("(%p/%p)->(%p)\n", iface, This, pCapabilities);
 128     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 129     if (SUCCEEDED(hr)) {
 130         hr = IMediaSeeking_GetCapabilities(seek, pCapabilities);
 131         IMediaSeeking_Release(seek);
 132     }
 133     else
 134         return E_NOTIMPL;
 135     return hr;
 136 }
 137
 138 static HRESULT WINAPI MediaSeekingPassThru_CheckCapabilities(IMediaSeeking * iface, DWORD * pCapabilities)
 139 {
 140     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 141     IMediaSeeking *seek;
 142     HRESULT hr;
 143     TRACE("(%p/%p)->(%p)\n", iface, This, pCapabilities);
 144     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 145     if (SUCCEEDED(hr)) {
 146         hr = IMediaSeeking_CheckCapabilities(seek, pCapabilities);
 147         IMediaSeeking_Release(seek);
 148     }
 149     else
 150         return E_NOTIMPL;
 151     return hr;
 152 }
 153
 154 static HRESULT WINAPI MediaSeekingPassThru_IsFormatSupported(IMediaSeeking * iface, const GUID * pFormat)
 155 {
 156     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 157     IMediaSeeking *seek;
 158     HRESULT hr;
 159     TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
 160     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 161     if (SUCCEEDED(hr)) {
 162         hr = IMediaSeeking_IsFormatSupported(seek, pFormat);
 163         IMediaSeeking_Release(seek);
 164     }
 165     else
 166         return E_NOTIMPL;
 167     return hr;
 168 }
 169
 170 static HRESULT WINAPI MediaSeekingPassThru_QueryPreferredFormat(IMediaSeeking * iface, GUID * pFormat)
 171 {
 172     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 173     IMediaSeeking *seek;
 174     HRESULT hr;
 175     TRACE("(%p/%p)->(%p)\n", iface, This, pFormat);
 176     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 177     if (SUCCEEDED(hr)) {
 178         hr = IMediaSeeking_QueryPreferredFormat(seek, pFormat);
 179         IMediaSeeking_Release(seek);
 180     }
 181     else
 182         return E_NOTIMPL;
 183     return hr;
 184 }
 185
 186 static HRESULT WINAPI MediaSeekingPassThru_GetTimeFormat(IMediaSeeking * iface, GUID * pFormat)
 187 {
 188     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 189     IMediaSeeking *seek;
 190     HRESULT hr;
 191     TRACE("(%p/%p)->(%p)\n", iface, This, pFormat);
 192     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 193     if (SUCCEEDED(hr)) {
 194         hr = IMediaSeeking_GetTimeFormat(seek, pFormat);
 195         IMediaSeeking_Release(seek);
 196     }
 197     else
 198         return E_NOTIMPL;
 199     return hr;
 200 }
 201
 202 static HRESULT WINAPI MediaSeekingPassThru_IsUsingTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 203 {
 204     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 205     IMediaSeeking *seek;
 206     HRESULT hr;
 207     TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
 208     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 209     if (SUCCEEDED(hr)) {
 210         hr = IMediaSeeking_IsUsingTimeFormat(seek, pFormat);
 211         IMediaSeeking_Release(seek);
 212     }
 213     else
 214         return E_NOTIMPL;
 215     return hr;
 216 }
 217
 218 static HRESULT WINAPI MediaSeekingPassThru_SetTimeFormat(IMediaSeeking * iface, const GUID * pFormat)
 219 {
 220     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 221     IMediaSeeking *seek;
 222     HRESULT hr;
 223     TRACE("(%p/%p)->(%s)\n", iface, This, debugstr_guid(pFormat));
 224     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 225     if (SUCCEEDED(hr)) {
 226         hr = IMediaSeeking_SetTimeFormat(seek, pFormat);
 227         IMediaSeeking_Release(seek);
 228     }
 229     else
 230         return E_NOTIMPL;
 231     return hr;
 232 }
 233
 234 static HRESULT WINAPI MediaSeekingPassThru_GetDuration(IMediaSeeking * iface, LONGLONG * pDuration)
 235 {
 236     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 237     IMediaSeeking *seek;
 238     HRESULT hr;
 239     TRACE("(%p/%p)->(%p)\n", iface, This, pDuration);
 240     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 241     if (SUCCEEDED(hr)) {
 242         hr = IMediaSeeking_GetDuration(seek, pDuration);
 243         IMediaSeeking_Release(seek);
 244     }
 245     else
 246         return E_NOTIMPL;
 247     return hr;
 248 }
 249
 250 static HRESULT WINAPI MediaSeekingPassThru_GetStopPosition(IMediaSeeking * iface, LONGLONG * pStop)
 251 {
 252     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 253     IMediaSeeking *seek;
 254     HRESULT hr;
 255     TRACE("(%p/%p)->(%p)\n", iface, This, pStop);
 256     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 257     if (SUCCEEDED(hr)) {
 258         hr = IMediaSeeking_GetStopPosition(seek, pStop);
 259         IMediaSeeking_Release(seek);
 260     }
 261     else
 262         return E_NOTIMPL;
 263     return hr;
 264 }
 265
 266 static HRESULT WINAPI MediaSeekingPassThru_GetCurrentPosition(IMediaSeeking * iface, LONGLONG * pCurrent)
 267 {
 268     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 269     IMediaSeeking *seek;
 270     HRESULT hr = S_OK;
 271     TRACE("(%p/%p)->(%p)\n", iface, This, pCurrent);
 272     if (!pCurrent)
 273         return E_POINTER;
 274     EnterCriticalSection(&This->time_cs);
 275     if (This->timevalid)
 276         *pCurrent = This->time_earliest;
 277     else
 278         hr = E_FAIL;
 279     LeaveCriticalSection(&This->time_cs);
 280     if (SUCCEEDED(hr)) {
 281         hr = IMediaSeeking_ConvertTimeFormat(iface, pCurrent, NULL, *pCurrent, &TIME_FORMAT_MEDIA_TIME);
 282         return hr;
 283     }
 284     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 285     if (SUCCEEDED(hr)) {
 286         hr = IMediaSeeking_GetCurrentPosition(seek, pCurrent);
 287         IMediaSeeking_Release(seek);
 288     }
 289     else
 290         return E_NOTIMPL;
 291     return hr;
 292 }
 293
 294 static HRESULT WINAPI MediaSeekingPassThru_ConvertTimeFormat(IMediaSeeking * iface, LONGLONG * pTarget, const GUID * pTargetFormat, LONGLONG Source, const GUID * pSourceFormat)
 295 {
 296     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 297     IMediaSeeking *seek;
 298     HRESULT hr;
 299     TRACE("(%p/%p)->(%p,%s,%x%08x,%s)\n", iface, This, pTarget, debugstr_guid(pTargetFormat), (DWORD)(Source>>32), (DWORD)Source, debugstr_guid(pSourceFormat));
 300     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 301     if (SUCCEEDED(hr)) {
 302         hr = IMediaSeeking_ConvertTimeFormat(seek, pTarget, pTargetFormat, Source, pSourceFormat);
 303         IMediaSeeking_Release(seek);
 304     }
 305     else
 306         return E_NOTIMPL;
 307     return hr;
 308 }
 309
 310 static HRESULT WINAPI MediaSeekingPassThru_SetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, DWORD dwCurrentFlags, LONGLONG * pStop, DWORD dwStopFlags)
 311 {
 312     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 313     IMediaSeeking *seek;
 314     HRESULT hr;
 315     TRACE("(%p/%p)->(%p,%x,%p,%x)\n", iface, This, pCurrent, dwCurrentFlags, pStop, dwStopFlags);
 316     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 317     if (SUCCEEDED(hr)) {
 318         hr = IMediaSeeking_SetPositions(seek, pCurrent, dwCurrentFlags, pStop, dwStopFlags);
 319         IMediaSeeking_Release(seek);
 320     } else if (hr == VFW_E_NOT_CONNECTED)
 321         hr = S_OK;
 322     return hr;
 323 }
 324
 325 static HRESULT WINAPI MediaSeekingPassThru_GetPositions(IMediaSeeking * iface, LONGLONG * pCurrent, LONGLONG * pStop)
 326 {
 327     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 328     IMediaSeeking *seek;
 329     HRESULT hr;
 330     TRACE("(%p/%p)->(%p, %p)\n", iface, This, pCurrent, pStop);
 331     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 332     if (SUCCEEDED(hr)) {
 333         hr = IMediaSeeking_GetPositions(seek, pCurrent, pStop);
 334         IMediaSeeking_Release(seek);
 335     }
 336     else
 337         return E_NOTIMPL;
 338     return hr;
 339 }
 340
 341 static HRESULT WINAPI MediaSeekingPassThru_GetAvailable(IMediaSeeking * iface, LONGLONG * pEarliest, LONGLONG * pLatest)
 342 {
 343     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 344     IMediaSeeking *seek;
 345     HRESULT hr;
 346     TRACE("(%p/%p)->(%p,%p)\n", iface, This, pEarliest, pLatest);
 347     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 348     if (SUCCEEDED(hr)) {
 349         hr = IMediaSeeking_GetAvailable(seek, pEarliest, pLatest);
 350         IMediaSeeking_Release(seek);
 351     }
 352     else
 353         return E_NOTIMPL;
 354     return hr;
 355 }
 356
 357 static HRESULT WINAPI MediaSeekingPassThru_SetRate(IMediaSeeking * iface, double dRate)
 358 {
 359     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 360     IMediaSeeking *seek;
 361     HRESULT hr;
 362     TRACE("(%p/%p)->(%e)\n", iface, This, dRate);
 363     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 364     if (SUCCEEDED(hr)) {
 365         hr = IMediaSeeking_SetRate(seek, dRate);
 366         IMediaSeeking_Release(seek);
 367     }
 368     else
 369         return E_NOTIMPL;
 370     return hr;
 371 }
 372
 373 static HRESULT WINAPI MediaSeekingPassThru_GetRate(IMediaSeeking * iface, double * dRate)
 374 {
 375     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 376     IMediaSeeking *seek;
 377     HRESULT hr;
 378     TRACE("(%p/%p)->(%p)\n", iface, This, dRate);
 379     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 380     if (SUCCEEDED(hr)) {
 381         hr = IMediaSeeking_GetRate(seek, dRate);
 382         IMediaSeeking_Release(seek);
 383     }
 384     else
 385         return E_NOTIMPL;
 386     return hr;
 387 }
 388
 389 static HRESULT WINAPI MediaSeekingPassThru_GetPreroll(IMediaSeeking * iface, LONGLONG * pPreroll)
 390 {
 391     struct strmbase_passthrough *This = impl_from_IMediaSeeking(iface);
 392     IMediaSeeking *seek;
 393     HRESULT hr;
 394     TRACE("(%p)\n", pPreroll);
 395     hr = get_connected(This, &IID_IMediaSeeking, (LPVOID*)&seek);
 396     if (SUCCEEDED(hr)) {
 397         hr = IMediaSeeking_GetPreroll(seek, pPreroll);
 398         IMediaSeeking_Release(seek);
 399     }
 400     else
 401         return E_NOTIMPL;
 402     return hr;
 403 }
 404
 405 static const IMediaSeekingVtbl IMediaSeekingPassThru_Vtbl =
 406 {
 407     MediaSeekingPassThru_QueryInterface,
 408     MediaSeekingPassThru_AddRef,
 409     MediaSeekingPassThru_Release,
 410     MediaSeekingPassThru_GetCapabilities,
 411     MediaSeekingPassThru_CheckCapabilities,
 412     MediaSeekingPassThru_IsFormatSupported,
 413     MediaSeekingPassThru_QueryPreferredFormat,
 414     MediaSeekingPassThru_GetTimeFormat,
 415     MediaSeekingPassThru_IsUsingTimeFormat,
 416     MediaSeekingPassThru_SetTimeFormat,
 417     MediaSeekingPassThru_GetDuration,
 418     MediaSeekingPassThru_GetStopPosition,
 419     MediaSeekingPassThru_GetCurrentPosition,
 420     MediaSeekingPassThru_ConvertTimeFormat,
 421     MediaSeekingPassThru_SetPositions,
 422     MediaSeekingPassThru_GetPositions,
 423     MediaSeekingPassThru_GetAvailable,
 424     MediaSeekingPassThru_SetRate,
 425     MediaSeekingPassThru_GetRate,
 426     MediaSeekingPassThru_GetPreroll
 427 };
 428
 429 static HRESULT WINAPI MediaPositionPassThru_QueryInterface(IMediaPosition *iface, REFIID iid, void **out)
 430 {
 431     struct strmbase_passthrough *passthrough = impl_from_IMediaPosition(iface);
 432
 433     return IUnknown_QueryInterface(passthrough->outer_unk, iid, out);
 434 }
 435
 436 static ULONG WINAPI MediaPositionPassThru_AddRef(IMediaPosition *iface)
 437 {
 438     struct strmbase_passthrough *passthrough = impl_from_IMediaPosition(iface);
 439
 440     return IUnknown_AddRef(passthrough->outer_unk);
 441 }
 442
 443 static ULONG WINAPI MediaPositionPassThru_Release(IMediaPosition *iface)
 444 {
 445     struct strmbase_passthrough *passthrough = impl_from_IMediaPosition(iface);
 446
 447     return IUnknown_Release(passthrough->outer_unk);
 448 }
 449
 450 static HRESULT WINAPI MediaPositionPassThru_GetTypeInfoCount(IMediaPosition *iface, UINT *count)
 451 {
 452     TRACE("iface %p, count %p.\n", iface, count);
 453     *count = 1;
 454     return S_OK;
 455 }
 456
 457 static HRESULT WINAPI MediaPositionPassThru_GetTypeInfo(IMediaPosition *iface, UINT index,
 458         LCID lcid, ITypeInfo **typeinfo)
 459 {
 460     TRACE("iface %p, index %u, lcid %#x, typeinfo %p.\n", iface, index, lcid, typeinfo);
 461     return strmbase_get_typeinfo(IMediaPosition_tid, typeinfo);
 462 }
 463
 464 static HRESULT WINAPI MediaPositionPassThru_GetIDsOfNames(IMediaPosition *iface, REFIID iid,
 465         LPOLESTR *names, UINT count, LCID lcid, DISPID *ids)
 466 {
 467     ITypeInfo *typeinfo;
 468     HRESULT hr;
 469
 470     TRACE("iface %p, iid %s, names %p, count %u, lcid %#x, ids %p.\n",
 471             iface, debugstr_guid(iid), names, count, lcid, ids);
 472
 473     if (SUCCEEDED(hr = strmbase_get_typeinfo(IMediaPosition_tid, &typeinfo)))
 474     {
 475         hr = ITypeInfo_GetIDsOfNames(typeinfo, names, count, ids);
 476         ITypeInfo_Release(typeinfo);
 477     }
 478     return hr;
 479 }
 480
 481 static HRESULT WINAPI MediaPositionPassThru_Invoke(IMediaPosition *iface, DISPID id, REFIID iid, LCID lcid,
 482         WORD flags, DISPPARAMS *params, VARIANT *result, EXCEPINFO *excepinfo, UINT *error_arg)
 483 {
 484     ITypeInfo *typeinfo;
 485     HRESULT hr;
 486
 487     TRACE("iface %p, id %d, iid %s, lcid %#x, flags %#x, params %p, result %p, excepinfo %p, error_arg %p.\n",
 488             iface, id, debugstr_guid(iid), lcid, flags, params, result, excepinfo, error_arg);
 489
 490     if (SUCCEEDED(hr = strmbase_get_typeinfo(IMediaPosition_tid, &typeinfo)))
 491     {
 492         hr = ITypeInfo_Invoke(typeinfo, iface, id, flags, params, result, excepinfo, error_arg);
 493         ITypeInfo_Release(typeinfo);
 494     }
 495     return hr;
 496 }
 497
 498 static HRESULT WINAPI MediaPositionPassThru_get_Duration(IMediaPosition *iface, REFTIME *plength)
 499 {
 500     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 501     IMediaPosition *pos;
 502     HRESULT hr;
 503
 504     TRACE("(%p)\n", plength);
 505
 506     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 507     if (SUCCEEDED(hr)) {
 508         hr = IMediaPosition_get_Duration(pos, plength);
 509         IMediaPosition_Release(pos);
 510     }
 511     else
 512         return E_NOTIMPL;
 513     return hr;
 514 }
 515
 516 static HRESULT WINAPI MediaPositionPassThru_put_CurrentPosition(IMediaPosition *iface, REFTIME llTime)
 517 {
 518     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 519     IMediaPosition *pos;
 520     HRESULT hr;
 521
 522     TRACE("iface %p, time %.16e.\n", iface, llTime);
 523
 524     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 525     if (SUCCEEDED(hr)) {
 526         hr = IMediaPosition_put_CurrentPosition(pos, llTime);
 527         IMediaPosition_Release(pos);
 528     }
 529     else
 530         return E_NOTIMPL;
 531     return hr;
 532 }
 533
 534 static HRESULT WINAPI MediaPositionPassThru_get_CurrentPosition(IMediaPosition *iface, REFTIME *pllTime)
 535 {
 536     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 537     IMediaPosition *pos;
 538     HRESULT hr;
 539
 540     TRACE("(%p)\n", pllTime);
 541
 542     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 543     if (SUCCEEDED(hr)) {
 544         hr = IMediaPosition_get_CurrentPosition(pos, pllTime);
 545         IMediaPosition_Release(pos);
 546     }
 547     else
 548         return E_NOTIMPL;
 549     return hr;
 550 }
 551
 552 static HRESULT WINAPI MediaPositionPassThru_get_StopTime(IMediaPosition *iface, REFTIME *pllTime)
 553 {
 554     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 555     IMediaPosition *pos;
 556     HRESULT hr;
 557
 558     TRACE("(%p)\n", pllTime);
 559
 560     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 561     if (SUCCEEDED(hr)) {
 562         hr = IMediaPosition_get_StopTime(pos, pllTime);
 563         IMediaPosition_Release(pos);
 564     }
 565     else
 566         return E_NOTIMPL;
 567     return hr;
 568 }
 569
 570 static HRESULT WINAPI MediaPositionPassThru_put_StopTime(IMediaPosition *iface, REFTIME llTime)
 571 {
 572     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 573     IMediaPosition *pos;
 574     HRESULT hr;
 575
 576     TRACE("iface %p, time %.16e.\n", iface, llTime);
 577
 578     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 579     if (SUCCEEDED(hr)) {
 580         hr = IMediaPosition_put_StopTime(pos, llTime);
 581         IMediaPosition_Release(pos);
 582     }
 583     else
 584         return E_NOTIMPL;
 585     return hr;
 586 }
 587
 588 static HRESULT WINAPI MediaPositionPassThru_get_PrerollTime(IMediaPosition *iface, REFTIME *pllTime)
 589 {
 590     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 591     IMediaPosition *pos;
 592     HRESULT hr;
 593
 594     TRACE("(%p)\n", pllTime);
 595
 596     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 597     if (SUCCEEDED(hr)) {
 598         hr = IMediaPosition_get_PrerollTime(pos, pllTime);
 599         IMediaPosition_Release(pos);
 600     }
 601     else
 602         return E_NOTIMPL;
 603     return hr;
 604 }
 605
 606 static HRESULT WINAPI MediaPositionPassThru_put_PrerollTime(IMediaPosition *iface, REFTIME llTime)
 607 {
 608     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 609     IMediaPosition *pos;
 610     HRESULT hr;
 611
 612     TRACE("iface %p, time %.16e.\n", iface, llTime);
 613
 614     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 615     if (SUCCEEDED(hr)) {
 616         hr = IMediaPosition_put_PrerollTime(pos, llTime);
 617         IMediaPosition_Release(pos);
 618     }
 619     else
 620         return E_NOTIMPL;
 621     return hr;
 622 }
 623
 624 static HRESULT WINAPI MediaPositionPassThru_put_Rate(IMediaPosition *iface, double dRate)
 625 {
 626     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 627     IMediaPosition *pos;
 628     HRESULT hr;
 629
 630     TRACE("(%f)\n", dRate);
 631
 632     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 633     if (SUCCEEDED(hr)) {
 634         hr = IMediaPosition_put_Rate(pos, dRate);
 635         IMediaPosition_Release(pos);
 636     }
 637     else
 638         return E_NOTIMPL;
 639     return hr;
 640 }
 641
 642 static HRESULT WINAPI MediaPositionPassThru_get_Rate(IMediaPosition *iface, double *pdRate)
 643 {
 644     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 645     IMediaPosition *pos;
 646     HRESULT hr;
 647
 648     TRACE("(%p)\n", pdRate);
 649
 650     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 651     if (SUCCEEDED(hr)) {
 652         hr = IMediaPosition_get_Rate(pos, pdRate);
 653         IMediaPosition_Release(pos);
 654     }
 655     else
 656         return E_NOTIMPL;
 657     return hr;
 658 }
 659
 660 static HRESULT WINAPI MediaPositionPassThru_CanSeekForward(IMediaPosition *iface, LONG *pCanSeekForward)
 661 {
 662     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 663     IMediaPosition *pos;
 664     HRESULT hr;
 665
 666     TRACE("(%p)\n", pCanSeekForward);
 667
 668     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 669     if (SUCCEEDED(hr)) {
 670         hr = IMediaPosition_CanSeekForward(pos, pCanSeekForward);
 671         IMediaPosition_Release(pos);
 672     }
 673     else
 674         return E_NOTIMPL;
 675     return hr;
 676 }
 677
 678 static HRESULT WINAPI MediaPositionPassThru_CanSeekBackward(IMediaPosition *iface, LONG *pCanSeekBackward)
 679 {
 680     struct strmbase_passthrough *This = impl_from_IMediaPosition(iface);
 681     IMediaPosition *pos;
 682     HRESULT hr;
 683
 684     TRACE("(%p)\n", pCanSeekBackward);
 685
 686     hr = get_connected(This, &IID_IMediaPosition, (LPVOID*)&pos);
 687     if (SUCCEEDED(hr)) {
 688         hr = IMediaPosition_CanSeekBackward(pos, pCanSeekBackward);
 689         IMediaPosition_Release(pos);
 690     }
 691     else
 692         return E_NOTIMPL;
 693     return hr;
 694 }
 695
 696 static const IMediaPositionVtbl IMediaPositionPassThru_Vtbl =
 697 {
 698     MediaPositionPassThru_QueryInterface,
 699     MediaPositionPassThru_AddRef,
 700     MediaPositionPassThru_Release,
 701     MediaPositionPassThru_GetTypeInfoCount,
 702     MediaPositionPassThru_GetTypeInfo,
 703     MediaPositionPassThru_GetIDsOfNames,
 704     MediaPositionPassThru_Invoke,
 705     MediaPositionPassThru_get_Duration,
 706     MediaPositionPassThru_put_CurrentPosition,
 707     MediaPositionPassThru_get_CurrentPosition,
 708     MediaPositionPassThru_get_StopTime,
 709     MediaPositionPassThru_put_StopTime,
 710     MediaPositionPassThru_get_PrerollTime,
 711     MediaPositionPassThru_put_PrerollTime,
 712     MediaPositionPassThru_put_Rate,
 713     MediaPositionPassThru_get_Rate,
 714     MediaPositionPassThru_CanSeekForward,
 715     MediaPositionPassThru_CanSeekBackward
 716 };
 717
 718 void strmbase_passthrough_init(struct strmbase_passthrough *passthrough, IUnknown *outer)
 719 {
 720     memset(passthrough, 0, sizeof(*passthrough));
 721
 722     passthrough->outer_unk = outer;
 723     passthrough->IMediaPosition_iface.lpVtbl = &IMediaPositionPassThru_Vtbl;
 724     passthrough->IMediaSeeking_iface.lpVtbl = &IMediaSeekingPassThru_Vtbl;
 725     passthrough->ISeekingPassThru_iface.lpVtbl = &ISeekingPassThru_Vtbl;
 726     InitializeCriticalSection(&passthrough->time_cs);
 727     passthrough->time_cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": strmbase_passthrough.time_cs" );
 728 }
 729
 730 void strmbase_passthrough_cleanup(struct strmbase_passthrough *passthrough)
 731 {
 732     passthrough->time_cs.DebugInfo->Spare[0] = 0;
 733     DeleteCriticalSection(&passthrough->time_cs);
 734 }
 735
 736 void strmbase_passthrough_update_time(struct strmbase_passthrough *passthrough, REFERENCE_TIME time)
 737 {
 738     EnterCriticalSection(&passthrough->time_cs);
 739     passthrough->time_earliest = time;
 740     passthrough->timevalid = TRUE;
 741     LeaveCriticalSection(&passthrough->time_cs);
 742 }
 743
 744 void strmbase_passthrough_invalidate_time(struct strmbase_passthrough *passthrough)
 745 {
 746     EnterCriticalSection(&passthrough->time_cs);
 747     passthrough->timevalid = FALSE;
 748     LeaveCriticalSection(&passthrough->time_cs);
 749 }
 750
 751 void strmbase_passthrough_eos(struct strmbase_passthrough *passthrough)
 752 {
 753     REFERENCE_TIME time;
 754     HRESULT hr;
 755
 756     hr = IMediaSeeking_GetStopPosition(&passthrough->IMediaSeeking_iface, &time);
 757     EnterCriticalSection(&passthrough->time_cs);
 758     if (SUCCEEDED(hr))
 759     {
 760         passthrough->timevalid = TRUE;
 761         passthrough->time_earliest = time;
 762     }
 763     else
 764         passthrough->timevalid = FALSE;
 765     LeaveCriticalSection(&passthrough->time_cs);
 766 }