dlls/mf/main.c

   1 /*
   2  * Copyright (C) 2015 Austin English
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19
  20 #include <stdarg.h>
  21
  22 #define COBJMACROS
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "mfidl.h"
  27 #include "rpcproxy.h"
  28
  29 #include "mf_private.h"
  30
  31 #include "wine/debug.h"
  32 #include "wine/list.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(mfplat);
  35
  36 extern const GUID CLSID_FileSchemePlugin;
  37
  38 struct activate_object
  39 {
  40     IMFActivate IMFActivate_iface;
  41     LONG refcount;
  42     IMFAttributes *attributes;
  43     IUnknown *object;
  44     const struct activate_funcs *funcs;
  45     void *context;
  46 };
  47
  48 static struct activate_object *impl_from_IMFActivate(IMFActivate *iface)
  49 {
  50     return CONTAINING_RECORD(iface, struct activate_object, IMFActivate_iface);
  51 }
  52
  53 static HRESULT WINAPI activate_object_QueryInterface(IMFActivate *iface, REFIID riid, void **obj)
  54 {
  55     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
  56
  57     if (IsEqualIID(riid, &IID_IMFActivate) ||
  58             IsEqualIID(riid, &IID_IMFAttributes) ||
  59             IsEqualIID(riid, &IID_IUnknown))
  60     {
  61         *obj = iface;
  62         IMFActivate_AddRef(iface);
  63         return S_OK;
  64     }
  65
  66     WARN("Unsupported %s.\n", debugstr_guid(riid));
  67     *obj = NULL;
  68     return E_NOINTERFACE;
  69 }
  70
  71 static ULONG WINAPI activate_object_AddRef(IMFActivate *iface)
  72 {
  73     struct activate_object *activate = impl_from_IMFActivate(iface);
  74     ULONG refcount = InterlockedIncrement(&activate->refcount);
  75
  76     TRACE("%p, refcount %u.\n", iface, refcount);
  77
  78     return refcount;
  79 }
  80
  81 static ULONG WINAPI activate_object_Release(IMFActivate *iface)
  82 {
  83     struct activate_object *activate = impl_from_IMFActivate(iface);
  84     ULONG refcount = InterlockedDecrement(&activate->refcount);
  85
  86     TRACE("%p, refcount %u.\n", iface, refcount);
  87
  88     if (!refcount)
  89     {
  90         if (activate->funcs->free_private)
  91             activate->funcs->free_private(activate->context);
  92         if (activate->object)
  93             IUnknown_Release(activate->object);
  94         IMFAttributes_Release(activate->attributes);
  95         free(activate);
  96     }
  97
  98     return refcount;
  99 }
 100
 101 static HRESULT WINAPI activate_object_GetItem(IMFActivate *iface, REFGUID key, PROPVARIANT *value)
 102 {
 103     struct activate_object *activate = impl_from_IMFActivate(iface);
 104
 105     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), value);
 106
 107     return IMFAttributes_GetItem(activate->attributes, key, value);
 108 }
 109
 110 static HRESULT WINAPI activate_object_GetItemType(IMFActivate *iface, REFGUID key, MF_ATTRIBUTE_TYPE *type)
 111 {
 112     struct activate_object *activate = impl_from_IMFActivate(iface);
 113
 114     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), type);
 115
 116     return IMFAttributes_GetItemType(activate->attributes, key, type);
 117 }
 118
 119 static HRESULT WINAPI activate_object_CompareItem(IMFActivate *iface, REFGUID key, REFPROPVARIANT value, BOOL *result)
 120 {
 121     struct activate_object *activate = impl_from_IMFActivate(iface);
 122
 123     TRACE("%p, %s, %p, %p.\n", iface, debugstr_guid(key), value, result);
 124
 125     return IMFAttributes_CompareItem(activate->attributes, key, value, result);
 126 }
 127
 128 static HRESULT WINAPI activate_object_Compare(IMFActivate *iface, IMFAttributes *theirs, MF_ATTRIBUTES_MATCH_TYPE type,
 129         BOOL *result)
 130 {
 131     struct activate_object *activate = impl_from_IMFActivate(iface);
 132
 133     TRACE("%p, %p, %d, %p.\n", iface, theirs, type, result);
 134
 135     return IMFAttributes_Compare(activate->attributes, theirs, type, result);
 136 }
 137
 138 static HRESULT WINAPI activate_object_GetUINT32(IMFActivate *iface, REFGUID key, UINT32 *value)
 139 {
 140     struct activate_object *activate = impl_from_IMFActivate(iface);
 141
 142     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), value);
 143
 144     return IMFAttributes_GetUINT32(activate->attributes, key, value);
 145 }
 146
 147 static HRESULT WINAPI activate_object_GetUINT64(IMFActivate *iface, REFGUID key, UINT64 *value)
 148 {
 149     struct activate_object *activate = impl_from_IMFActivate(iface);
 150
 151     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), value);
 152
 153     return IMFAttributes_GetUINT64(activate->attributes, key, value);
 154 }
 155
 156 static HRESULT WINAPI activate_object_GetDouble(IMFActivate *iface, REFGUID key, double *value)
 157 {
 158     struct activate_object *activate = impl_from_IMFActivate(iface);
 159
 160     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), value);
 161
 162     return IMFAttributes_GetDouble(activate->attributes, key, value);
 163 }
 164
 165 static HRESULT WINAPI activate_object_GetGUID(IMFActivate *iface, REFGUID key, GUID *value)
 166 {
 167     struct activate_object *activate = impl_from_IMFActivate(iface);
 168
 169     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), value);
 170
 171     return IMFAttributes_GetGUID(activate->attributes, key, value);
 172 }
 173
 174 static HRESULT WINAPI activate_object_GetStringLength(IMFActivate *iface, REFGUID key, UINT32 *length)
 175 {
 176     struct activate_object *activate = impl_from_IMFActivate(iface);
 177
 178     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), length);
 179
 180     return IMFAttributes_GetStringLength(activate->attributes, key, length);
 181 }
 182
 183 static HRESULT WINAPI activate_object_GetString(IMFActivate *iface, REFGUID key, WCHAR *value,
 184         UINT32 size, UINT32 *length)
 185 {
 186     struct activate_object *activate = impl_from_IMFActivate(iface);
 187
 188     TRACE("%p, %s, %p, %d, %p.\n", iface, debugstr_guid(key), value, size, length);
 189
 190     return IMFAttributes_GetString(activate->attributes, key, value, size, length);
 191 }
 192
 193 static HRESULT WINAPI activate_object_GetAllocatedString(IMFActivate *iface, REFGUID key,
 194         WCHAR **value, UINT32 *length)
 195 {
 196     struct activate_object *activate = impl_from_IMFActivate(iface);
 197
 198     TRACE("%p, %s, %p, %p.\n", iface, debugstr_guid(key), value, length);
 199
 200     return IMFAttributes_GetAllocatedString(activate->attributes, key, value, length);
 201 }
 202
 203 static HRESULT WINAPI activate_object_GetBlobSize(IMFActivate *iface, REFGUID key, UINT32 *size)
 204 {
 205     struct activate_object *activate = impl_from_IMFActivate(iface);
 206
 207     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), size);
 208
 209     return IMFAttributes_GetBlobSize(activate->attributes, key, size);
 210 }
 211
 212 static HRESULT WINAPI activate_object_GetBlob(IMFActivate *iface, REFGUID key, UINT8 *buf,
 213         UINT32 bufsize, UINT32 *blobsize)
 214 {
 215     struct activate_object *activate = impl_from_IMFActivate(iface);
 216
 217     TRACE("%p, %s, %p, %d, %p.\n", iface, debugstr_guid(key), buf, bufsize, blobsize);
 218
 219     return IMFAttributes_GetBlob(activate->attributes, key, buf, bufsize, blobsize);
 220 }
 221
 222 static HRESULT WINAPI activate_object_GetAllocatedBlob(IMFActivate *iface, REFGUID key, UINT8 **buf, UINT32 *size)
 223 {
 224     struct activate_object *activate = impl_from_IMFActivate(iface);
 225
 226     TRACE("%p, %s, %p, %p.\n", iface, debugstr_guid(key), buf, size);
 227
 228     return IMFAttributes_GetAllocatedBlob(activate->attributes, key, buf, size);
 229 }
 230
 231 static HRESULT WINAPI activate_object_GetUnknown(IMFActivate *iface, REFGUID key, REFIID riid, void **ppv)
 232 {
 233     struct activate_object *activate = impl_from_IMFActivate(iface);
 234
 235     TRACE("%p, %s, %s, %p.\n", iface, debugstr_guid(key), debugstr_guid(riid), ppv);
 236
 237     return IMFAttributes_GetUnknown(activate->attributes, key, riid, ppv);
 238 }
 239
 240 static HRESULT WINAPI activate_object_SetItem(IMFActivate *iface, REFGUID key, REFPROPVARIANT value)
 241 {
 242     struct activate_object *activate = impl_from_IMFActivate(iface);
 243
 244     TRACE("%p, %s, %p.\n", iface, debugstr_guid(key), value);
 245
 246     return IMFAttributes_SetItem(activate->attributes, key, value);
 247 }
 248
 249 static HRESULT WINAPI activate_object_DeleteItem(IMFActivate *iface, REFGUID key)
 250 {
 251     struct activate_object *activate = impl_from_IMFActivate(iface);
 252
 253     TRACE("%p, %s.\n", iface, debugstr_guid(key));
 254
 255     return IMFAttributes_DeleteItem(activate->attributes, key);
 256 }
 257
 258 static HRESULT WINAPI activate_object_DeleteAllItems(IMFActivate *iface)
 259 {
 260     struct activate_object *activate = impl_from_IMFActivate(iface);
 261
 262     TRACE("%p.\n", iface);
 263
 264     return IMFAttributes_DeleteAllItems(activate->attributes);
 265 }
 266
 267 static HRESULT WINAPI activate_object_SetUINT32(IMFActivate *iface, REFGUID key, UINT32 value)
 268 {
 269     struct activate_object *activate = impl_from_IMFActivate(iface);
 270
 271     TRACE("%p, %s, %d.\n", iface, debugstr_guid(key), value);
 272
 273     return IMFAttributes_SetUINT32(activate->attributes, key, value);
 274 }
 275
 276 static HRESULT WINAPI activate_object_SetUINT64(IMFActivate *iface, REFGUID key, UINT64 value)
 277 {
 278     struct activate_object *activate = impl_from_IMFActivate(iface);
 279
 280     TRACE("%p, %s, %s.\n", iface, debugstr_guid(key), wine_dbgstr_longlong(value));
 281
 282     return IMFAttributes_SetUINT64(activate->attributes, key, value);
 283 }
 284
 285 static HRESULT WINAPI activate_object_SetDouble(IMFActivate *iface, REFGUID key, double value)
 286 {
 287     struct activate_object *activate = impl_from_IMFActivate(iface);
 288
 289     TRACE("%p, %s, %f.\n", iface, debugstr_guid(key), value);
 290
 291     return IMFAttributes_SetDouble(activate->attributes, key, value);
 292 }
 293
 294 static HRESULT WINAPI activate_object_SetGUID(IMFActivate *iface, REFGUID key, REFGUID value)
 295 {
 296     struct activate_object *activate = impl_from_IMFActivate(iface);
 297
 298     TRACE("%p, %s, %s.\n", iface, debugstr_guid(key), debugstr_guid(value));
 299
 300     return IMFAttributes_SetGUID(activate->attributes, key, value);
 301 }
 302
 303 static HRESULT WINAPI activate_object_SetString(IMFActivate *iface, REFGUID key, const WCHAR *value)
 304 {
 305     struct activate_object *activate = impl_from_IMFActivate(iface);
 306
 307     TRACE("%p, %s, %s.\n", iface, debugstr_guid(key), debugstr_w(value));
 308
 309     return IMFAttributes_SetString(activate->attributes, key, value);
 310 }
 311
 312 static HRESULT WINAPI activate_object_SetBlob(IMFActivate *iface, REFGUID key, const UINT8 *buf, UINT32 size)
 313 {
 314     struct activate_object *activate = impl_from_IMFActivate(iface);
 315
 316     TRACE("%p, %s, %p, %d.\n", iface, debugstr_guid(key), buf, size);
 317
 318     return IMFAttributes_SetBlob(activate->attributes, key, buf, size);
 319 }
 320
 321 static HRESULT WINAPI activate_object_SetUnknown(IMFActivate *iface, REFGUID key, IUnknown *unknown)
 322 {
 323     struct activate_object *activate = impl_from_IMFActivate(iface);
 324
 325     TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(key), unknown);
 326
 327     return IMFAttributes_SetUnknown(activate->attributes, key, unknown);
 328 }
 329
 330 static HRESULT WINAPI activate_object_LockStore(IMFActivate *iface)
 331 {
 332     struct activate_object *activate = impl_from_IMFActivate(iface);
 333
 334     TRACE("%p.\n", iface);
 335
 336     return IMFAttributes_LockStore(activate->attributes);
 337 }
 338
 339 static HRESULT WINAPI activate_object_UnlockStore(IMFActivate *iface)
 340 {
 341     struct activate_object *activate = impl_from_IMFActivate(iface);
 342
 343     TRACE("%p.\n", iface);
 344
 345     return IMFAttributes_UnlockStore(activate->attributes);
 346 }
 347
 348 static HRESULT WINAPI activate_object_GetCount(IMFActivate *iface, UINT32 *count)
 349 {
 350     struct activate_object *activate = impl_from_IMFActivate(iface);
 351
 352     TRACE("%p, %p.\n", iface, count);
 353
 354     return IMFAttributes_GetCount(activate->attributes, count);
 355 }
 356
 357 static HRESULT WINAPI activate_object_GetItemByIndex(IMFActivate *iface, UINT32 index, GUID *key, PROPVARIANT *value)
 358 {
 359     struct activate_object *activate = impl_from_IMFActivate(iface);
 360
 361     TRACE("%p, %u, %p, %p.\n", iface, index, key, value);
 362
 363     return IMFAttributes_GetItemByIndex(activate->attributes, index, key, value);
 364 }
 365
 366 static HRESULT WINAPI activate_object_CopyAllItems(IMFActivate *iface, IMFAttributes *dest)
 367 {
 368     struct activate_object *activate = impl_from_IMFActivate(iface);
 369
 370     TRACE("%p, %p.\n", iface, dest);
 371
 372     return IMFAttributes_CopyAllItems(activate->attributes, dest);
 373 }
 374
 375 static HRESULT WINAPI activate_object_ActivateObject(IMFActivate *iface, REFIID riid, void **obj)
 376 {
 377     struct activate_object *activate = impl_from_IMFActivate(iface);
 378     IUnknown *object;
 379     HRESULT hr;
 380
 381     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
 382
 383     if (!activate->object)
 384     {
 385         if (FAILED(hr = activate->funcs->create_object((IMFAttributes *)iface, activate->context, &object)))
 386             return hr;
 387
 388         if (InterlockedCompareExchangePointer((void **)&activate->object, object, NULL))
 389             IUnknown_Release(object);
 390     }
 391
 392     return IUnknown_QueryInterface(activate->object, riid, obj);
 393 }
 394
 395 static HRESULT WINAPI activate_object_ShutdownObject(IMFActivate *iface)
 396 {
 397     struct activate_object *activate = impl_from_IMFActivate(iface);
 398     IUnknown *object;
 399
 400     TRACE("%p.\n", iface);
 401
 402     if ((object = InterlockedCompareExchangePointer((void **)&activate->object, NULL, activate->object)))
 403     {
 404         activate->funcs->shutdown_object(activate->context, object);
 405         IUnknown_Release(object);
 406     }
 407
 408     return S_OK;
 409 }
 410
 411 static HRESULT WINAPI activate_object_DetachObject(IMFActivate *iface)
 412 {
 413     TRACE("%p.\n", iface);
 414
 415     return E_NOTIMPL;
 416 }
 417
 418 static const IMFActivateVtbl activate_object_vtbl =
 419 {
 420     activate_object_QueryInterface,
 421     activate_object_AddRef,
 422     activate_object_Release,
 423     activate_object_GetItem,
 424     activate_object_GetItemType,
 425     activate_object_CompareItem,
 426     activate_object_Compare,
 427     activate_object_GetUINT32,
 428     activate_object_GetUINT64,
 429     activate_object_GetDouble,
 430     activate_object_GetGUID,
 431     activate_object_GetStringLength,
 432     activate_object_GetString,
 433     activate_object_GetAllocatedString,
 434     activate_object_GetBlobSize,
 435     activate_object_GetBlob,
 436     activate_object_GetAllocatedBlob,
 437     activate_object_GetUnknown,
 438     activate_object_SetItem,
 439     activate_object_DeleteItem,
 440     activate_object_DeleteAllItems,
 441     activate_object_SetUINT32,
 442     activate_object_SetUINT64,
 443     activate_object_SetDouble,
 444     activate_object_SetGUID,
 445     activate_object_SetString,
 446     activate_object_SetBlob,
 447     activate_object_SetUnknown,
 448     activate_object_LockStore,
 449     activate_object_UnlockStore,
 450     activate_object_GetCount,
 451     activate_object_GetItemByIndex,
 452     activate_object_CopyAllItems,
 453     activate_object_ActivateObject,
 454     activate_object_ShutdownObject,
 455     activate_object_DetachObject,
 456 };
 457
 458 HRESULT create_activation_object(void *context, const struct activate_funcs *funcs, IMFActivate **ret)
 459 {
 460     struct activate_object *object;
 461     HRESULT hr;
 462
 463     if (!(object = calloc(1, sizeof(*object))))
 464         return E_OUTOFMEMORY;
 465
 466     object->IMFActivate_iface.lpVtbl = &activate_object_vtbl;
 467     object->refcount = 1;
 468     if (FAILED(hr = MFCreateAttributes(&object->attributes, 0)))
 469     {
 470         free(object);
 471         return hr;
 472     }
 473     object->funcs = funcs;
 474     object->context = context;
 475
 476     *ret = &object->IMFActivate_iface;
 477
 478     return S_OK;
 479 }
 480
 481 struct class_factory
 482 {
 483     IClassFactory IClassFactory_iface;
 484     HRESULT (*create_instance)(REFIID riid, void **obj);
 485 };
 486
 487 static inline struct class_factory *impl_from_IClassFactory(IClassFactory *iface)
 488 {
 489     return CONTAINING_RECORD(iface, struct class_factory, IClassFactory_iface);
 490 }
 491
 492 static HRESULT WINAPI class_factory_QueryInterface(IClassFactory *iface, REFIID riid, void **obj)
 493 {
 494     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
 495
 496     if (IsEqualGUID(riid, &IID_IClassFactory) ||
 497             IsEqualGUID(riid, &IID_IUnknown))
 498     {
 499         *obj = iface;
 500         IClassFactory_AddRef(iface);
 501         return S_OK;
 502     }
 503
 504     WARN("%s is not supported.\n", debugstr_guid(riid));
 505     *obj = NULL;
 506     return E_NOINTERFACE;
 507 }
 508
 509 static ULONG WINAPI class_factory_AddRef(IClassFactory *iface)
 510 {
 511     return 2;
 512 }
 513
 514 static ULONG WINAPI class_factory_Release(IClassFactory *iface)
 515 {
 516     return 1;
 517 }
 518
 519 static HRESULT WINAPI class_factory_CreateInstance(IClassFactory *iface, IUnknown *outer, REFIID riid, void **obj)
 520 {
 521     struct class_factory *factory = impl_from_IClassFactory(iface);
 522
 523     TRACE("%p, %p, %s, %p.\n", iface, outer, debugstr_guid(riid), obj);
 524
 525     if (outer)
 526     {
 527         *obj = NULL;
 528         return CLASS_E_NOAGGREGATION;
 529     }
 530
 531     return factory->create_instance(riid, obj);
 532 }
 533
 534 static HRESULT WINAPI class_factory_LockServer(IClassFactory *iface, BOOL dolock)
 535 {
 536     FIXME("%d.\n", dolock);
 537
 538     return S_OK;
 539 }
 540
 541 static const IClassFactoryVtbl class_factory_vtbl =
 542 {
 543     class_factory_QueryInterface,
 544     class_factory_AddRef,
 545     class_factory_Release,
 546     class_factory_CreateInstance,
 547     class_factory_LockServer,
 548 };
 549
 550 struct file_scheme_handler_result
 551 {
 552     struct list entry;
 553     IMFAsyncResult *result;
 554     MF_OBJECT_TYPE obj_type;
 555     IUnknown *object;
 556 };
 557
 558 struct file_scheme_handler
 559 {
 560     IMFSchemeHandler IMFSchemeHandler_iface;
 561     IMFAsyncCallback IMFAsyncCallback_iface;
 562     LONG refcount;
 563     IMFSourceResolver *resolver;
 564     struct list results;
 565     CRITICAL_SECTION cs;
 566 };
 567
 568 static struct file_scheme_handler *impl_from_IMFSchemeHandler(IMFSchemeHandler *iface)
 569 {
 570     return CONTAINING_RECORD(iface, struct file_scheme_handler, IMFSchemeHandler_iface);
 571 }
 572
 573 static struct file_scheme_handler *impl_from_IMFAsyncCallback(IMFAsyncCallback *iface)
 574 {
 575     return CONTAINING_RECORD(iface, struct file_scheme_handler, IMFAsyncCallback_iface);
 576 }
 577
 578 static HRESULT WINAPI file_scheme_handler_QueryInterface(IMFSchemeHandler *iface, REFIID riid, void **obj)
 579 {
 580     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
 581
 582     if (IsEqualIID(riid, &IID_IMFSchemeHandler) ||
 583             IsEqualIID(riid, &IID_IUnknown))
 584     {
 585         *obj = iface;
 586         IMFSchemeHandler_AddRef(iface);
 587         return S_OK;
 588     }
 589
 590     WARN("Unsupported %s.\n", debugstr_guid(riid));
 591     *obj = NULL;
 592     return E_NOINTERFACE;
 593 }
 594
 595 static ULONG WINAPI file_scheme_handler_AddRef(IMFSchemeHandler *iface)
 596 {
 597     struct file_scheme_handler *handler = impl_from_IMFSchemeHandler(iface);
 598     ULONG refcount = InterlockedIncrement(&handler->refcount);
 599
 600     TRACE("%p, refcount %u.\n", handler, refcount);
 601
 602     return refcount;
 603 }
 604
 605 static ULONG WINAPI file_scheme_handler_Release(IMFSchemeHandler *iface)
 606 {
 607     struct file_scheme_handler *handler = impl_from_IMFSchemeHandler(iface);
 608     ULONG refcount = InterlockedDecrement(&handler->refcount);
 609     struct file_scheme_handler_result *result, *next;
 610
 611     TRACE("%p, refcount %u.\n", iface, refcount);
 612
 613     if (!refcount)
 614     {
 615         LIST_FOR_EACH_ENTRY_SAFE(result, next, &handler->results, struct file_scheme_handler_result, entry)
 616         {
 617             list_remove(&result->entry);
 618             IMFAsyncResult_Release(result->result);
 619             if (result->object)
 620                 IUnknown_Release(result->object);
 621             free(result);
 622         }
 623         DeleteCriticalSection(&handler->cs);
 624         if (handler->resolver)
 625             IMFSourceResolver_Release(handler->resolver);
 626         free(handler);
 627     }
 628
 629     return refcount;
 630 }
 631
 632 struct create_object_context
 633 {
 634     IUnknown IUnknown_iface;
 635     LONG refcount;
 636
 637     IPropertyStore *props;
 638     WCHAR *url;
 639     DWORD flags;
 640 };
 641
 642 static struct create_object_context *impl_from_IUnknown(IUnknown *iface)
 643 {
 644     return CONTAINING_RECORD(iface, struct create_object_context, IUnknown_iface);
 645 }
 646
 647 static HRESULT WINAPI create_object_context_QueryInterface(IUnknown *iface, REFIID riid, void **obj)
 648 {
 649     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
 650
 651     if (IsEqualIID(riid, &IID_IUnknown))
 652     {
 653         *obj = iface;
 654         IUnknown_AddRef(iface);
 655         return S_OK;
 656     }
 657
 658     WARN("Unsupported %s.\n", debugstr_guid(riid));
 659     *obj = NULL;
 660     return E_NOINTERFACE;
 661 }
 662
 663 static ULONG WINAPI create_object_context_AddRef(IUnknown *iface)
 664 {
 665     struct create_object_context *context = impl_from_IUnknown(iface);
 666     ULONG refcount = InterlockedIncrement(&context->refcount);
 667
 668     TRACE("%p, refcount %u.\n", iface, refcount);
 669
 670     return refcount;
 671 }
 672
 673 static ULONG WINAPI create_object_context_Release(IUnknown *iface)
 674 {
 675     struct create_object_context *context = impl_from_IUnknown(iface);
 676     ULONG refcount = InterlockedDecrement(&context->refcount);
 677
 678     TRACE("%p, refcount %u.\n", iface, refcount);
 679
 680     if (!refcount)
 681     {
 682         if (context->props)
 683             IPropertyStore_Release(context->props);
 684         free(context->url);
 685         free(context);
 686     }
 687
 688     return refcount;
 689 }
 690
 691 static const IUnknownVtbl create_object_context_vtbl =
 692 {
 693     create_object_context_QueryInterface,
 694     create_object_context_AddRef,
 695     create_object_context_Release,
 696 };
 697
 698 static HRESULT WINAPI file_scheme_handler_BeginCreateObject(IMFSchemeHandler *iface, const WCHAR *url, DWORD flags,
 699         IPropertyStore *props, IUnknown **cancel_cookie, IMFAsyncCallback *callback, IUnknown *state)
 700 {
 701     struct file_scheme_handler *handler = impl_from_IMFSchemeHandler(iface);
 702     struct create_object_context *context;
 703     IMFAsyncResult *caller, *item;
 704     HRESULT hr;
 705
 706     TRACE("%p, %s, %#x, %p, %p, %p, %p.\n", iface, debugstr_w(url), flags, props, cancel_cookie, callback, state);
 707
 708     if (cancel_cookie)
 709         *cancel_cookie = NULL;
 710
 711     if (FAILED(hr = MFCreateAsyncResult(NULL, callback, state, &caller)))
 712         return hr;
 713
 714     if (!(context = malloc(sizeof(*context))))
 715     {
 716         IMFAsyncResult_Release(caller);
 717         return E_OUTOFMEMORY;
 718     }
 719
 720     context->IUnknown_iface.lpVtbl = &create_object_context_vtbl;
 721     context->refcount = 1;
 722     context->props = props;
 723     if (context->props)
 724         IPropertyStore_AddRef(context->props);
 725     context->flags = flags;
 726     context->url = wcsdup(url);
 727     if (!context->url)
 728     {
 729         IMFAsyncResult_Release(caller);
 730         IUnknown_Release(&context->IUnknown_iface);
 731         return E_OUTOFMEMORY;
 732     }
 733
 734     hr = MFCreateAsyncResult(&context->IUnknown_iface, &handler->IMFAsyncCallback_iface, (IUnknown *)caller, &item);
 735     IUnknown_Release(&context->IUnknown_iface);
 736     if (SUCCEEDED(hr))
 737     {
 738         if (SUCCEEDED(hr = MFPutWorkItemEx(MFASYNC_CALLBACK_QUEUE_IO, item)))
 739         {
 740             if (cancel_cookie)
 741             {
 742                 *cancel_cookie = (IUnknown *)caller;
 743                 IUnknown_AddRef(*cancel_cookie);
 744             }
 745         }
 746
 747         IMFAsyncResult_Release(item);
 748     }
 749     IMFAsyncResult_Release(caller);
 750
 751     return hr;
 752 }
 753
 754 static HRESULT WINAPI file_scheme_handler_EndCreateObject(IMFSchemeHandler *iface, IMFAsyncResult *result,
 755         MF_OBJECT_TYPE *obj_type, IUnknown **object)
 756 {
 757     struct file_scheme_handler *handler = impl_from_IMFSchemeHandler(iface);
 758     struct file_scheme_handler_result *found = NULL, *cur;
 759     HRESULT hr;
 760
 761     TRACE("%p, %p, %p, %p.\n", iface, result, obj_type, object);
 762
 763     EnterCriticalSection(&handler->cs);
 764
 765     LIST_FOR_EACH_ENTRY(cur, &handler->results, struct file_scheme_handler_result, entry)
 766     {
 767         if (result == cur->result)
 768         {
 769             list_remove(&cur->entry);
 770             found = cur;
 771             break;
 772         }
 773     }
 774
 775     LeaveCriticalSection(&handler->cs);
 776
 777     if (found)
 778     {
 779         *obj_type = found->obj_type;
 780         *object = found->object;
 781         hr = IMFAsyncResult_GetStatus(found->result);
 782         IMFAsyncResult_Release(found->result);
 783         free(found);
 784     }
 785     else
 786     {
 787         *obj_type = MF_OBJECT_INVALID;
 788         *object = NULL;
 789         hr = MF_E_UNEXPECTED;
 790     }
 791
 792     return hr;
 793 }
 794
 795 static HRESULT WINAPI file_scheme_handler_CancelObjectCreation(IMFSchemeHandler *iface, IUnknown *cancel_cookie)
 796 {
 797     struct file_scheme_handler *handler = impl_from_IMFSchemeHandler(iface);
 798     struct file_scheme_handler_result *found = NULL, *cur;
 799
 800     TRACE("%p, %p.\n", iface, cancel_cookie);
 801
 802     EnterCriticalSection(&handler->cs);
 803
 804     LIST_FOR_EACH_ENTRY(cur, &handler->results, struct file_scheme_handler_result, entry)
 805     {
 806         if (cancel_cookie == (IUnknown *)cur->result)
 807         {
 808             list_remove(&cur->entry);
 809             found = cur;
 810             break;
 811         }
 812     }
 813
 814     LeaveCriticalSection(&handler->cs);
 815
 816     if (found)
 817     {
 818         IMFAsyncResult_Release(found->result);
 819         if (found->object)
 820             IUnknown_Release(found->object);
 821         free(found);
 822     }
 823
 824     return found ? S_OK : MF_E_UNEXPECTED;
 825 }
 826
 827 static const IMFSchemeHandlerVtbl file_scheme_handler_vtbl =
 828 {
 829     file_scheme_handler_QueryInterface,
 830     file_scheme_handler_AddRef,
 831     file_scheme_handler_Release,
 832     file_scheme_handler_BeginCreateObject,
 833     file_scheme_handler_EndCreateObject,
 834     file_scheme_handler_CancelObjectCreation,
 835 };
 836
 837 static HRESULT WINAPI file_scheme_handler_callback_QueryInterface(IMFAsyncCallback *iface, REFIID riid, void **obj)
 838 {
 839     if (IsEqualIID(riid, &IID_IMFAsyncCallback) ||
 840             IsEqualIID(riid, &IID_IUnknown))
 841     {
 842         *obj = iface;
 843         IMFAsyncCallback_AddRef(iface);
 844         return S_OK;
 845     }
 846
 847     WARN("Unsupported %s.\n", debugstr_guid(riid));
 848     *obj = NULL;
 849     return E_NOINTERFACE;
 850 }
 851
 852 static ULONG WINAPI file_scheme_handler_callback_AddRef(IMFAsyncCallback *iface)
 853 {
 854     struct file_scheme_handler *handler = impl_from_IMFAsyncCallback(iface);
 855     return IMFSchemeHandler_AddRef(&handler->IMFSchemeHandler_iface);
 856 }
 857
 858 static ULONG WINAPI file_scheme_handler_callback_Release(IMFAsyncCallback *iface)
 859 {
 860     struct file_scheme_handler *handler = impl_from_IMFAsyncCallback(iface);
 861     return IMFSchemeHandler_Release(&handler->IMFSchemeHandler_iface);
 862 }
 863
 864 static HRESULT WINAPI file_scheme_handler_callback_GetParameters(IMFAsyncCallback *iface, DWORD *flags, DWORD *queue)
 865 {
 866     return E_NOTIMPL;
 867 }
 868
 869 static HRESULT file_scheme_handler_get_resolver(struct file_scheme_handler *handler, IMFSourceResolver **resolver)
 870 {
 871     HRESULT hr;
 872
 873     if (!handler->resolver)
 874     {
 875         IMFSourceResolver *resolver;
 876
 877         if (FAILED(hr = MFCreateSourceResolver(&resolver)))
 878             return hr;
 879
 880         if (InterlockedCompareExchangePointer((void **)&handler->resolver, resolver, NULL))
 881             IMFSourceResolver_Release(resolver);
 882     }
 883
 884     *resolver = handler->resolver;
 885     IMFSourceResolver_AddRef(*resolver);
 886
 887     return S_OK;
 888 }
 889
 890 static HRESULT WINAPI file_scheme_handler_callback_Invoke(IMFAsyncCallback *iface, IMFAsyncResult *result)
 891 {
 892     static const WCHAR schemeW[] = {'f','i','l','e',':','/','/'};
 893     struct file_scheme_handler *handler = impl_from_IMFAsyncCallback(iface);
 894     struct file_scheme_handler_result *handler_result;
 895     MF_OBJECT_TYPE obj_type = MF_OBJECT_INVALID;
 896     IUnknown *object = NULL, *context_object;
 897     struct create_object_context *context;
 898     IMFSourceResolver *resolver;
 899     IMFAsyncResult *caller;
 900     IMFByteStream *stream;
 901     const WCHAR *url;
 902     HRESULT hr;
 903
 904     caller = (IMFAsyncResult *)IMFAsyncResult_GetStateNoAddRef(result);
 905
 906     if (FAILED(hr = IMFAsyncResult_GetObject(result, &context_object)))
 907     {
 908         WARN("Expected context set for callee result.\n");
 909         return hr;
 910     }
 911
 912     context = impl_from_IUnknown(context_object);
 913
 914     /* Strip from scheme, MFCreateFile() won't be expecting it. */
 915     url = context->url;
 916     if (!wcsnicmp(context->url, schemeW, ARRAY_SIZE(schemeW)))
 917         url += ARRAY_SIZE(schemeW);
 918
 919     hr = MFCreateFile(context->flags & MF_RESOLUTION_WRITE ? MF_ACCESSMODE_READWRITE : MF_ACCESSMODE_READ,
 920             MF_OPENMODE_FAIL_IF_NOT_EXIST, MF_FILEFLAGS_NONE, url, &stream);
 921     if (SUCCEEDED(hr))
 922     {
 923         if (context->flags & MF_RESOLUTION_MEDIASOURCE)
 924         {
 925             if (SUCCEEDED(hr = file_scheme_handler_get_resolver(handler, &resolver)))
 926             {
 927                 hr = IMFSourceResolver_CreateObjectFromByteStream(resolver, stream, context->url, context->flags,
 928                         context->props, &obj_type, &object);
 929                 IMFSourceResolver_Release(resolver);
 930                 IMFByteStream_Release(stream);
 931             }
 932         }
 933         else
 934         {
 935             object = (IUnknown *)stream;
 936             obj_type = MF_OBJECT_BYTESTREAM;
 937         }
 938     }
 939
 940     handler_result = malloc(sizeof(*handler_result));
 941     if (handler_result)
 942     {
 943         handler_result->result = caller;
 944         IMFAsyncResult_AddRef(handler_result->result);
 945         handler_result->obj_type = obj_type;
 946         handler_result->object = object;
 947
 948         EnterCriticalSection(&handler->cs);
 949         list_add_tail(&handler->results, &handler_result->entry);
 950         LeaveCriticalSection(&handler->cs);
 951     }
 952     else
 953     {
 954         if (object)
 955             IUnknown_Release(object);
 956         hr = E_OUTOFMEMORY;
 957     }
 958
 959     IUnknown_Release(&context->IUnknown_iface);
 960
 961     IMFAsyncResult_SetStatus(caller, hr);
 962     MFInvokeCallback(caller);
 963
 964     return S_OK;
 965 }
 966
 967 static const IMFAsyncCallbackVtbl file_scheme_handler_callback_vtbl =
 968 {
 969     file_scheme_handler_callback_QueryInterface,
 970     file_scheme_handler_callback_AddRef,
 971     file_scheme_handler_callback_Release,
 972     file_scheme_handler_callback_GetParameters,
 973     file_scheme_handler_callback_Invoke,
 974 };
 975
 976 static HRESULT file_scheme_handler_construct(REFIID riid, void **obj)
 977 {
 978     struct file_scheme_handler *handler;
 979     HRESULT hr;
 980
 981     TRACE("%s, %p.\n", debugstr_guid(riid), obj);
 982
 983     if (!(handler = calloc(1, sizeof(*handler))))
 984         return E_OUTOFMEMORY;
 985
 986     handler->IMFSchemeHandler_iface.lpVtbl = &file_scheme_handler_vtbl;
 987     handler->IMFAsyncCallback_iface.lpVtbl = &file_scheme_handler_callback_vtbl;
 988     handler->refcount = 1;
 989     list_init(&handler->results);
 990     InitializeCriticalSection(&handler->cs);
 991
 992     hr = IMFSchemeHandler_QueryInterface(&handler->IMFSchemeHandler_iface, riid, obj);
 993     IMFSchemeHandler_Release(&handler->IMFSchemeHandler_iface);
 994
 995     return hr;
 996 }
 997
 998 static struct class_factory file_scheme_handler_factory = { { &class_factory_vtbl }, file_scheme_handler_construct };
 999
1000 static const struct class_object
1001 {
1002     const GUID *clsid;
1003     IClassFactory *factory;
1004 }
1005 class_objects[] =
1006 {
1007     { &CLSID_FileSchemePlugin, &file_scheme_handler_factory.IClassFactory_iface },
1008 };
1009
1010 /*******************************************************************************
1011  *      DllGetClassObject (mf.@)
1012  */
1013 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, void **obj)
1014 {
1015     unsigned int i;
1016
1017     TRACE("%s, %s, %p.\n", debugstr_guid(rclsid), debugstr_guid(riid), obj);
1018
1019     for (i = 0; i < ARRAY_SIZE(class_objects); ++i)
1020     {
1021         if (IsEqualGUID(class_objects[i].clsid, rclsid))
1022             return IClassFactory_QueryInterface(class_objects[i].factory, riid, obj);
1023     }
1024
1025     WARN("%s: class not found.\n", debugstr_guid(rclsid));
1026     return CLASS_E_CLASSNOTAVAILABLE;
1027 }
1028
1029 static HRESULT prop_string_vector_append(PROPVARIANT *vector, unsigned int *capacity, BOOL unique, const WCHAR *str)
1030 {
1031     WCHAR *ptrW;
1032     int len, i;
1033
1034     if (unique)
1035     {
1036         for (i = 0; i < vector->calpwstr.cElems; ++i)
1037         {
1038             if (!lstrcmpW(vector->calpwstr.pElems[i], str))
1039                 return S_OK;
1040         }
1041     }
1042
1043     if (!*capacity || *capacity - 1 < vector->calpwstr.cElems)
1044     {
1045         unsigned int new_count;
1046         WCHAR **ptr;
1047
1048         new_count = *capacity ? *capacity * 2 : 10;
1049         ptr = CoTaskMemRealloc(vector->calpwstr.pElems, new_count * sizeof(*vector->calpwstr.pElems));
1050         if (!ptr)
1051             return E_OUTOFMEMORY;
1052         vector->calpwstr.pElems = ptr;
1053         *capacity = new_count;
1054     }
1055
1056     len = lstrlenW(str);
1057     if (!(vector->calpwstr.pElems[vector->calpwstr.cElems] = ptrW = CoTaskMemAlloc((len + 1) * sizeof(WCHAR))))
1058         return E_OUTOFMEMORY;
1059
1060     lstrcpyW(ptrW, str);
1061     vector->calpwstr.cElems++;
1062
1063     return S_OK;
1064 }
1065
1066 static int __cdecl qsort_string_compare(const void *a, const void *b)
1067 {
1068     const WCHAR *left = *(const WCHAR **)a, *right = *(const WCHAR **)b;
1069     return lstrcmpW(left, right);
1070 }
1071
1072 static HRESULT mf_get_handler_strings(const WCHAR *path, WCHAR filter, unsigned int maxlen, PROPVARIANT *dst)
1073 {
1074     static const HKEY hkey_roots[2] = { HKEY_CURRENT_USER, HKEY_LOCAL_MACHINE };
1075     unsigned int capacity = 0, count, size;
1076     HRESULT hr = S_OK;
1077     int i, index;
1078     WCHAR *buffW;
1079
1080     if (!(buffW = calloc(maxlen, sizeof(*buffW))))
1081         return E_OUTOFMEMORY;
1082
1083     memset(dst, 0, sizeof(*dst));
1084     dst->vt = VT_VECTOR | VT_LPWSTR;
1085
1086     for (i = 0; i < ARRAY_SIZE(hkey_roots); ++i)
1087     {
1088         HKEY hkey;
1089
1090         if (RegOpenKeyW(hkey_roots[i], path, &hkey))
1091             continue;
1092
1093         index = 0;
1094         size = maxlen;
1095         count = dst->calpwstr.cElems;
1096         while (!RegEnumKeyExW(hkey, index++, buffW, &size, NULL, NULL, NULL, NULL))
1097         {
1098             if (filter && !wcschr(buffW, filter))
1099                 continue;
1100
1101             if (FAILED(hr = prop_string_vector_append(dst, &capacity, i > 0, buffW)))
1102                 break;
1103             size = maxlen;
1104         }
1105
1106         /* Sort last pass results. */
1107         qsort(&dst->calpwstr.pElems[count], dst->calpwstr.cElems - count, sizeof(*dst->calpwstr.pElems),
1108                 qsort_string_compare);
1109
1110         RegCloseKey(hkey);
1111     }
1112
1113     if (FAILED(hr))
1114         PropVariantClear(dst);
1115
1116     free(buffW);
1117
1118     return hr;
1119 }
1120
1121 /***********************************************************************
1122  *      MFGetSupportedMimeTypes (mf.@)
1123  */
1124 HRESULT WINAPI MFGetSupportedMimeTypes(PROPVARIANT *dst)
1125 {
1126     unsigned int maxlen;
1127
1128     TRACE("%p.\n", dst);
1129
1130     if (!dst)
1131         return E_POINTER;
1132
1133     /* According to RFC4288 it's 127/127 characters. */
1134     maxlen = 127 /* type */ + 1 /* / */ + 127 /* subtype */ + 1;
1135     return mf_get_handler_strings(L"Software\\Microsoft\\Windows Media Foundation\\ByteStreamHandlers", '/',
1136             maxlen,  dst);
1137 }
1138
1139 /***********************************************************************
1140  *      MFGetSupportedSchemes (mf.@)
1141  */
1142 HRESULT WINAPI MFGetSupportedSchemes(PROPVARIANT *dst)
1143 {
1144     TRACE("%p.\n", dst);
1145
1146     if (!dst)
1147         return E_POINTER;
1148
1149     return mf_get_handler_strings(L"Software\\Microsoft\\Windows Media Foundation\\SchemeHandlers", 0, 64, dst);
1150 }
1151
1152 /***********************************************************************
1153  *      MFGetService (mf.@)
1154  */
1155 HRESULT WINAPI MFGetService(IUnknown *object, REFGUID service, REFIID riid, void **obj)
1156 {
1157     IMFGetService *gs;
1158     HRESULT hr;
1159
1160     TRACE("(%p, %s, %s, %p)\n", object, debugstr_guid(service), debugstr_guid(riid), obj);
1161
1162     if (!object)
1163         return E_POINTER;
1164
1165     if (FAILED(hr = IUnknown_QueryInterface(object, &IID_IMFGetService, (void **)&gs)))
1166         return hr;
1167
1168     hr = IMFGetService_GetService(gs, service, riid, obj);
1169     IMFGetService_Release(gs);
1170     return hr;
1171 }
1172
1173 /***********************************************************************
1174  *      MFShutdownObject (mf.@)
1175  */
1176 HRESULT WINAPI MFShutdownObject(IUnknown *object)
1177 {
1178     IMFShutdown *shutdown;
1179
1180     TRACE("%p.\n", object);
1181
1182     if (object && SUCCEEDED(IUnknown_QueryInterface(object, &IID_IMFShutdown, (void **)&shutdown)))
1183     {
1184         IMFShutdown_Shutdown(shutdown);
1185         IMFShutdown_Release(shutdown);
1186     }
1187
1188     return S_OK;
1189 }
1190
1191 /***********************************************************************
1192  *      MFEnumDeviceSources (mf.@)
1193  */
1194 HRESULT WINAPI MFEnumDeviceSources(IMFAttributes *attributes, IMFActivate ***sources, UINT32 *count)
1195 {
1196     FIXME("%p, %p, %p.\n", attributes, sources, count);
1197
1198     if (!attributes || !sources || !count)
1199         return E_INVALIDARG;
1200
1201     *count = 0;
1202
1203     return S_OK;
1204 }
1205
1206 struct simple_type_handler
1207 {
1208     IMFMediaTypeHandler IMFMediaTypeHandler_iface;
1209     LONG refcount;
1210     IMFMediaType *media_type;
1211     CRITICAL_SECTION cs;
1212 };
1213
1214 static struct simple_type_handler *impl_from_IMFMediaTypeHandler(IMFMediaTypeHandler *iface)
1215 {
1216     return CONTAINING_RECORD(iface, struct simple_type_handler, IMFMediaTypeHandler_iface);
1217 }
1218
1219 static HRESULT WINAPI simple_type_handler_QueryInterface(IMFMediaTypeHandler *iface, REFIID riid, void **obj)
1220 {
1221     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
1222
1223     if (IsEqualIID(riid, &IID_IMFMediaTypeHandler) ||
1224             IsEqualIID(riid, &IID_IUnknown))
1225     {
1226         *obj = iface;
1227         IMFMediaTypeHandler_AddRef(iface);
1228         return S_OK;
1229     }
1230
1231     *obj = NULL;
1232     return E_NOINTERFACE;
1233 }
1234
1235 static ULONG WINAPI simple_type_handler_AddRef(IMFMediaTypeHandler *iface)
1236 {
1237     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1238     ULONG refcount = InterlockedIncrement(&handler->refcount);
1239
1240     TRACE("%p, refcount %u.\n", iface, refcount);
1241
1242     return refcount;
1243 }
1244
1245 static ULONG WINAPI simple_type_handler_Release(IMFMediaTypeHandler *iface)
1246 {
1247     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1248     ULONG refcount = InterlockedDecrement(&handler->refcount);
1249
1250     TRACE("%p, refcount %u.\n", iface, refcount);
1251
1252     if (!refcount)
1253     {
1254         if (handler->media_type)
1255             IMFMediaType_Release(handler->media_type);
1256         DeleteCriticalSection(&handler->cs);
1257         free(handler);
1258     }
1259
1260     return refcount;
1261 }
1262
1263 static HRESULT WINAPI simple_type_handler_IsMediaTypeSupported(IMFMediaTypeHandler *iface, IMFMediaType *in_type,
1264         IMFMediaType **out_type)
1265 {
1266     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1267     DWORD flags = 0;
1268     HRESULT hr;
1269
1270     TRACE("%p, %p, %p.\n", iface, in_type, out_type);
1271
1272     if (out_type)
1273         *out_type = NULL;
1274
1275     EnterCriticalSection(&handler->cs);
1276     if (!handler->media_type)
1277         hr = MF_E_UNEXPECTED;
1278     else
1279     {
1280         if (SUCCEEDED(hr = IMFMediaType_IsEqual(handler->media_type, in_type, &flags)))
1281             hr = (flags & (MF_MEDIATYPE_EQUAL_MAJOR_TYPES | MF_MEDIATYPE_EQUAL_FORMAT_TYPES)) ==
1282                     (MF_MEDIATYPE_EQUAL_MAJOR_TYPES | MF_MEDIATYPE_EQUAL_FORMAT_TYPES) ? S_OK : E_FAIL;
1283     }
1284     LeaveCriticalSection(&handler->cs);
1285
1286     return hr;
1287 }
1288
1289 static HRESULT WINAPI simple_type_handler_GetMediaTypeCount(IMFMediaTypeHandler *iface, DWORD *count)
1290 {
1291     TRACE("%p, %p.\n", iface, count);
1292
1293     if (!count)
1294         return E_POINTER;
1295
1296     *count = 1;
1297
1298     return S_OK;
1299 }
1300
1301 static HRESULT WINAPI simple_type_handler_GetMediaTypeByIndex(IMFMediaTypeHandler *iface, DWORD index,
1302         IMFMediaType **type)
1303 {
1304     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1305
1306     TRACE("%p, %u, %p.\n", iface, index, type);
1307
1308     if (index > 0)
1309         return MF_E_NO_MORE_TYPES;
1310
1311     EnterCriticalSection(&handler->cs);
1312     *type = handler->media_type;
1313     if (*type)
1314         IMFMediaType_AddRef(*type);
1315     LeaveCriticalSection(&handler->cs);
1316
1317     return S_OK;
1318 }
1319
1320 static HRESULT WINAPI simple_type_handler_SetCurrentMediaType(IMFMediaTypeHandler *iface, IMFMediaType *media_type)
1321 {
1322     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1323
1324     TRACE("%p, %p.\n", iface, media_type);
1325
1326     EnterCriticalSection(&handler->cs);
1327     if (handler->media_type)
1328         IMFMediaType_Release(handler->media_type);
1329     handler->media_type = media_type;
1330     if (handler->media_type)
1331         IMFMediaType_AddRef(handler->media_type);
1332     LeaveCriticalSection(&handler->cs);
1333
1334     return S_OK;
1335 }
1336
1337 static HRESULT WINAPI simple_type_handler_GetCurrentMediaType(IMFMediaTypeHandler *iface, IMFMediaType **media_type)
1338 {
1339     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1340
1341     TRACE("%p, %p.\n", iface, media_type);
1342
1343     if (!media_type)
1344         return E_POINTER;
1345
1346     EnterCriticalSection(&handler->cs);
1347     *media_type = handler->media_type;
1348     if (*media_type)
1349         IMFMediaType_AddRef(*media_type);
1350     LeaveCriticalSection(&handler->cs);
1351
1352     return S_OK;
1353 }
1354
1355 static HRESULT WINAPI simple_type_handler_GetMajorType(IMFMediaTypeHandler *iface, GUID *type)
1356 {
1357     struct simple_type_handler *handler = impl_from_IMFMediaTypeHandler(iface);
1358     HRESULT hr;
1359
1360     TRACE("%p, %p.\n", iface, type);
1361
1362     EnterCriticalSection(&handler->cs);
1363     if (handler->media_type)
1364         hr = IMFMediaType_GetGUID(handler->media_type, &MF_MT_MAJOR_TYPE, type);
1365     else
1366         hr = MF_E_NOT_INITIALIZED;
1367     LeaveCriticalSection(&handler->cs);
1368
1369     return hr;
1370 }
1371
1372 static const IMFMediaTypeHandlerVtbl simple_type_handler_vtbl =
1373 {
1374     simple_type_handler_QueryInterface,
1375     simple_type_handler_AddRef,
1376     simple_type_handler_Release,
1377     simple_type_handler_IsMediaTypeSupported,
1378     simple_type_handler_GetMediaTypeCount,
1379     simple_type_handler_GetMediaTypeByIndex,
1380     simple_type_handler_SetCurrentMediaType,
1381     simple_type_handler_GetCurrentMediaType,
1382     simple_type_handler_GetMajorType,
1383 };
1384
1385 HRESULT WINAPI MFCreateSimpleTypeHandler(IMFMediaTypeHandler **handler)
1386 {
1387     struct simple_type_handler *object;
1388
1389     TRACE("%p.\n", handler);
1390
1391     if (!(object = calloc(1, sizeof(*object))))
1392         return E_OUTOFMEMORY;
1393
1394     object->IMFMediaTypeHandler_iface.lpVtbl = &simple_type_handler_vtbl;
1395     object->refcount = 1;
1396     InitializeCriticalSection(&object->cs);
1397
1398     *handler = &object->IMFMediaTypeHandler_iface;
1399
1400     return S_OK;
1401 }
1402
1403 HRESULT WINAPI MFRequireProtectedEnvironment(IMFPresentationDescriptor *pd)
1404 {
1405     BOOL selected, protected = FALSE;
1406     unsigned int i = 0, value;
1407     IMFStreamDescriptor *sd;
1408
1409     TRACE("%p.\n", pd);
1410
1411     while (SUCCEEDED(IMFPresentationDescriptor_GetStreamDescriptorByIndex(pd, i++, &selected, &sd)))
1412     {
1413         value = 0;
1414         protected = SUCCEEDED(IMFStreamDescriptor_GetUINT32(sd, &MF_SD_PROTECTED, &value)) && value;
1415         IMFStreamDescriptor_Release(sd);
1416         if (protected) break;
1417     }
1418
1419     return protected ? S_OK : S_FALSE;
1420 }