dlls/quartz/tests/filtermapper.c

   1 /*
   2  * Filtermapper unit tests for Quartz
   3  *
   4  * Copyright (C) 2008 Alexander Dorofeyev
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include "wine/test.h"
  24 #include "winbase.h"
  25 #include "initguid.h"
  26 #include "dshow.h"
  27 #include "winternl.h"
  28
  29 #include "fil_data.h"
  30
  31 DEFINE_GUID(GUID_NULL,0,0,0,0,0,0,0,0,0,0,0);
  32
  33 /* Helper function, checks if filter with given name was enumerated. */
  34 static BOOL enum_find_filter(const WCHAR *wszFilterName, IEnumMoniker *pEnum)
  35 {
  36     IMoniker *pMoniker = NULL;
  37     BOOL found = FALSE;
  38     ULONG nb;
  39     HRESULT hr;
  40     static const WCHAR wszFriendlyName[] = {'F','r','i','e','n','d','l','y','N','a','m','e',0};
  41
  42     while(!found && IEnumMoniker_Next(pEnum, 1, &pMoniker, &nb) == S_OK)
  43     {
  44         IPropertyBag * pPropBagCat = NULL;
  45         VARIANT var;
  46
  47         VariantInit(&var);
  48
  49         hr = IMoniker_BindToStorage(pMoniker, NULL, NULL, &IID_IPropertyBag, (LPVOID*)&pPropBagCat);
  50         ok(SUCCEEDED(hr), "IMoniker_BindToStorage failed with %x\n", hr);
  51         if (FAILED(hr) || !pPropBagCat)
  52         {
  53             VariantClear(&var);
  54             IMoniker_Release(pMoniker);
  55             continue;
  56         }
  57
  58         hr = IPropertyBag_Read(pPropBagCat, wszFriendlyName, &var, NULL);
  59         ok(SUCCEEDED(hr), "IPropertyBag_Read failed with %x\n", hr);
  60
  61         if (SUCCEEDED(hr))
  62         {
  63             CHAR val1[512], val2[512];
  64
  65             WideCharToMultiByte(CP_ACP, 0, V_UNION(&var, bstrVal), -1, val1, sizeof(val1), 0, 0);
  66             WideCharToMultiByte(CP_ACP, 0, wszFilterName, -1, val2, sizeof(val2), 0, 0);
  67             if (!lstrcmpA(val1, val2)) found = TRUE;
  68         }
  69
  70         IPropertyBag_Release(pPropBagCat);
  71         IMoniker_Release(pMoniker);
  72         VariantClear(&var);
  73     }
  74
  75     return found;
  76 }
  77
  78 static void test_fm2_enummatchingfilters(void)
  79 {
  80     IFilterMapper2 *pMapper = NULL;
  81     HRESULT hr;
  82     REGFILTER2 rgf2;
  83     REGFILTERPINS2 rgPins2[2];
  84     REGPINTYPES rgPinType;
  85     static const WCHAR wszFilterName1[] = {'T', 'e', 's', 't', 'f', 'i', 'l', 't', 'e', 'r', '1', 0 };
  86     static const WCHAR wszFilterName2[] = {'T', 'e', 's', 't', 'f', 'i', 'l', 't', 'e', 'r', '2', 0 };
  87     CLSID clsidFilter1;
  88     CLSID clsidFilter2;
  89     IEnumMoniker *pEnum = NULL;
  90     BOOL found;
  91
  92     ZeroMemory(&rgf2, sizeof(rgf2));
  93
  94     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
  95             &IID_IFilterMapper2, (LPVOID*)&pMapper);
  96     ok(hr == S_OK, "CoCreateInstance failed with %x\n", hr);
  97     if (FAILED(hr)) goto out;
  98
  99     hr = CoCreateGuid(&clsidFilter1);
 100     ok(hr == S_OK, "CoCreateGuid failed with %x\n", hr);
 101     hr = CoCreateGuid(&clsidFilter2);
 102     ok(hr == S_OK, "CoCreateGuid failed with %x\n", hr);
 103
 104     /* Test that a test renderer filter is returned when enumerating filters with bRender=FALSE */
 105     rgf2.dwVersion = 2;
 106     rgf2.dwMerit = MERIT_UNLIKELY;
 107     S2(U(rgf2)).cPins2 = 1;
 108     S2(U(rgf2)).rgPins2 = rgPins2;
 109
 110     rgPins2[0].dwFlags = REG_PINFLAG_B_RENDERER;
 111     rgPins2[0].cInstances = 1;
 112     rgPins2[0].nMediaTypes = 1;
 113     rgPins2[0].lpMediaType = &rgPinType;
 114     rgPins2[0].nMediums = 0;
 115     rgPins2[0].lpMedium = NULL;
 116     rgPins2[0].clsPinCategory = NULL;
 117
 118     rgPinType.clsMajorType = &GUID_NULL;
 119     rgPinType.clsMinorType = &GUID_NULL;
 120
 121     hr = IFilterMapper2_RegisterFilter(pMapper, &clsidFilter1, wszFilterName1, NULL,
 122                     &CLSID_LegacyAmFilterCategory, NULL, &rgf2);
 123     if (hr == E_ACCESSDENIED)
 124         skip("Not authorized to register filters\n");
 125     else
 126     {
 127         ok(hr == S_OK, "IFilterMapper2_RegisterFilter failed with %x\n", hr);
 128
 129         rgPins2[0].dwFlags = 0;
 130
 131         rgPins2[1].dwFlags = REG_PINFLAG_B_OUTPUT;
 132         rgPins2[1].cInstances = 1;
 133         rgPins2[1].nMediaTypes = 1;
 134         rgPins2[1].lpMediaType = &rgPinType;
 135         rgPins2[1].nMediums = 0;
 136         rgPins2[1].lpMedium = NULL;
 137         rgPins2[1].clsPinCategory = NULL;
 138
 139         S2(U(rgf2)).cPins2 = 2;
 140
 141         hr = IFilterMapper2_RegisterFilter(pMapper, &clsidFilter2, wszFilterName2, NULL,
 142                     &CLSID_LegacyAmFilterCategory, NULL, &rgf2);
 143         ok(hr == S_OK, "IFilterMapper2_RegisterFilter failed with %x\n", hr);
 144
 145         hr = IFilterMapper2_EnumMatchingFilters(pMapper, &pEnum, 0, TRUE, MERIT_UNLIKELY, TRUE,
 146                 0, NULL, NULL, &GUID_NULL, FALSE, FALSE, 0, NULL, NULL, &GUID_NULL);
 147         ok(hr == S_OK, "IFilterMapper2_EnumMatchingFilters failed with %x\n", hr);
 148         if (SUCCEEDED(hr) && pEnum)
 149         {
 150             found = enum_find_filter(wszFilterName1, pEnum);
 151             ok(found, "EnumMatchingFilters failed to return the test filter 1\n");
 152         }
 153
 154         if (pEnum) IEnumMoniker_Release(pEnum);
 155         pEnum = NULL;
 156
 157         hr = IFilterMapper2_EnumMatchingFilters(pMapper, &pEnum, 0, TRUE, MERIT_UNLIKELY, TRUE,
 158                 0, NULL, NULL, &GUID_NULL, FALSE, FALSE, 0, NULL, NULL, &GUID_NULL);
 159         ok(hr == S_OK, "IFilterMapper2_EnumMatchingFilters failed with %x\n", hr);
 160         if (SUCCEEDED(hr) && pEnum)
 161         {
 162             found = enum_find_filter(wszFilterName2, pEnum);
 163             ok(found, "EnumMatchingFilters failed to return the test filter 2\n");
 164         }
 165
 166         if (pEnum) IEnumMoniker_Release(pEnum);
 167         pEnum = NULL;
 168
 169         /* Non renderer must not be returned with bRender=TRUE */
 170
 171         hr = IFilterMapper2_EnumMatchingFilters(pMapper, &pEnum, 0, TRUE, MERIT_UNLIKELY, TRUE,
 172                 0, NULL, NULL, &GUID_NULL, TRUE, FALSE, 0, NULL, NULL, &GUID_NULL);
 173         ok(hr == S_OK, "IFilterMapper2_EnumMatchingFilters failed with %x\n", hr);
 174
 175         if (SUCCEEDED(hr) && pEnum)
 176         {
 177             found = enum_find_filter(wszFilterName1, pEnum);
 178             ok(found, "EnumMatchingFilters failed to return the test filter 1\n");
 179         }
 180     }
 181
 182     if (pEnum) IEnumMoniker_Release(pEnum);
 183     pEnum = NULL;
 184
 185     hr = IFilterMapper2_EnumMatchingFilters(pMapper, &pEnum, 0, TRUE, MERIT_UNLIKELY, TRUE,
 186                 0, NULL, NULL, &GUID_NULL, TRUE, FALSE, 0, NULL, NULL, &GUID_NULL);
 187     ok(hr == S_OK, "IFilterMapper2_EnumMatchingFilters failed with %x\n", hr);
 188
 189     if (SUCCEEDED(hr) && pEnum)
 190     {
 191         found = enum_find_filter(wszFilterName2, pEnum);
 192         ok(!found, "EnumMatchingFilters should not return the test filter 2\n");
 193     }
 194
 195     hr = IFilterMapper2_UnregisterFilter(pMapper, &CLSID_LegacyAmFilterCategory, NULL,
 196             &clsidFilter1);
 197     ok(SUCCEEDED(hr), "IFilterMapper2_UnregisterFilter failed with %x\n", hr);
 198
 199     hr = IFilterMapper2_UnregisterFilter(pMapper, &CLSID_LegacyAmFilterCategory, NULL,
 200             &clsidFilter2);
 201     ok(SUCCEEDED(hr), "IFilterMapper2_UnregisterFilter failed with %x\n", hr);
 202
 203     out:
 204
 205     if (pEnum) IEnumMoniker_Release(pEnum);
 206     if (pMapper) IFilterMapper2_Release(pMapper);
 207 }
 208
 209 static void test_legacy_filter_registration(void)
 210 {
 211     IFilterMapper2 *pMapper2 = NULL;
 212     IFilterMapper *pMapper = NULL;
 213     HRESULT hr;
 214     static const WCHAR wszFilterName[] = {'T', 'e', 's', 't', 'f', 'i', 'l', 't', 'e', 'r', 0 };
 215     static const CHAR szFilterName[] = "Testfilter";
 216     static const WCHAR wszPinName[] = {'P', 'i', 'n', '1', 0 };
 217     CLSID clsidFilter;
 218     CHAR szRegKey[MAX_PATH];
 219     static const CHAR szClsid[] = "CLSID";
 220     WCHAR wszGuidstring[MAX_PATH];
 221     CHAR szGuidstring[MAX_PATH];
 222     LONG lRet;
 223     HKEY hKey = NULL;
 224     IEnumMoniker *pEnum = NULL;
 225     BOOL found;
 226     IEnumRegFilters *pRegEnum = NULL;
 227
 228     /* Test if legacy filter registration scheme works (filter is added to HKCR\Filter). IFilterMapper_RegisterFilter
 229      * registers in this way. Filters so registered must then be accessible through both IFilterMapper_EnumMatchingFilters
 230      * and IFilterMapper2_EnumMatchingFilters. */
 231     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
 232             &IID_IFilterMapper2, (LPVOID*)&pMapper2);
 233     ok(hr == S_OK, "CoCreateInstance failed with %x\n", hr);
 234     if (FAILED(hr)) goto out;
 235
 236     hr = IFilterMapper2_QueryInterface(pMapper2, &IID_IFilterMapper, (LPVOID)&pMapper);
 237     ok(hr == S_OK, "IFilterMapper2_QueryInterface failed with %x\n", hr);
 238     if (FAILED(hr)) goto out;
 239
 240     /* Register a test filter. */
 241     hr = CoCreateGuid(&clsidFilter);
 242     ok(hr == S_OK, "CoCreateGuid failed with %x\n", hr);
 243
 244     lRet = StringFromGUID2(&clsidFilter, wszGuidstring, MAX_PATH);
 245     ok(lRet > 0, "StringFromGUID2 failed\n");
 246     if (!lRet) goto out;
 247     WideCharToMultiByte(CP_ACP, 0, wszGuidstring, -1, szGuidstring, MAX_PATH, 0, 0);
 248
 249     lstrcpyA(szRegKey, szClsid);
 250     lstrcatA(szRegKey, "\\");
 251     lstrcatA(szRegKey, szGuidstring);
 252
 253     /* Register---- functions need a filter class key to write pin and pin media type data to. Create a bogus
 254      * class key for it. */
 255     lRet = RegCreateKeyExA(HKEY_CLASSES_ROOT, szRegKey, 0, NULL, REG_OPTION_NON_VOLATILE, KEY_WRITE, NULL, &hKey, NULL);
 256     if (lRet == ERROR_ACCESS_DENIED)
 257         skip("Not authorized to register filters\n");
 258     else
 259     {
 260         ok(lRet == ERROR_SUCCESS, "RegCreateKeyExA failed with %x\n", HRESULT_FROM_WIN32(lRet));
 261
 262         /* Set default value - this is interpreted as "friendly name" later. */
 263         lRet = RegSetValueExA(hKey, NULL, 0, REG_SZ, (LPBYTE)szFilterName, lstrlenA(szFilterName) + 1);
 264         ok(lRet == ERROR_SUCCESS, "RegSetValueExA failed with %x\n", HRESULT_FROM_WIN32(lRet));
 265
 266         if (hKey) RegCloseKey(hKey);
 267         hKey = NULL;
 268
 269         hr = IFilterMapper_RegisterFilter(pMapper, clsidFilter, wszFilterName, MERIT_UNLIKELY);
 270         ok(hr == S_OK, "IFilterMapper_RegisterFilter failed with %x\n", hr);
 271
 272         hr = IFilterMapper_RegisterPin(pMapper, clsidFilter, wszPinName, TRUE, FALSE, FALSE, FALSE, GUID_NULL, NULL);
 273         ok(hr == S_OK, "IFilterMapper_RegisterPin failed with %x\n", hr);
 274
 275         hr = IFilterMapper_RegisterPinType(pMapper, clsidFilter, wszPinName, GUID_NULL, GUID_NULL);
 276         ok(hr == S_OK, "IFilterMapper_RegisterPinType failed with %x\n", hr);
 277
 278         hr = IFilterMapper2_EnumMatchingFilters(pMapper2, &pEnum, 0, TRUE, MERIT_UNLIKELY, TRUE,
 279                 0, NULL, NULL, &GUID_NULL, FALSE, FALSE, 0, NULL, NULL, &GUID_NULL);
 280         ok(hr == S_OK, "IFilterMapper2_EnumMatchingFilters failed with %x\n", hr);
 281         if (SUCCEEDED(hr) && pEnum)
 282         {
 283             found = enum_find_filter(wszFilterName, pEnum);
 284             ok(found, "IFilterMapper2_EnumMatchingFilters failed to return the test filter\n");
 285         }
 286
 287         if (pEnum) IEnumMoniker_Release(pEnum);
 288         pEnum = NULL;
 289
 290         found = FALSE;
 291         hr = IFilterMapper_EnumMatchingFilters(pMapper, &pRegEnum, MERIT_UNLIKELY, TRUE, GUID_NULL, GUID_NULL,
 292             FALSE, FALSE, GUID_NULL, GUID_NULL);
 293         ok(hr == S_OK, "IFilterMapper_EnumMatchingFilters failed with %x\n", hr);
 294         if (SUCCEEDED(hr) && pRegEnum)
 295         {
 296             ULONG cFetched;
 297             REGFILTER *prgf;
 298
 299             while(!found && IEnumRegFilters_Next(pRegEnum, 1, &prgf, &cFetched) == S_OK)
 300             {
 301                 CHAR val[512];
 302
 303                 WideCharToMultiByte(CP_ACP, 0, prgf->Name, -1, val, sizeof(val), 0, 0);
 304                 if (!lstrcmpA(val, szFilterName)) found = TRUE;
 305
 306                 CoTaskMemFree(prgf);
 307             }
 308
 309             IEnumRegFilters_Release(pRegEnum);
 310         }
 311         ok(found, "IFilterMapper_EnumMatchingFilters failed to return the test filter\n");
 312
 313         hr = IFilterMapper_UnregisterFilter(pMapper, clsidFilter);
 314         ok(hr == S_OK, "FilterMapper_UnregisterFilter failed with %x\n", hr);
 315
 316         lRet = RegOpenKeyExA(HKEY_CLASSES_ROOT, szClsid, 0, KEY_WRITE | DELETE, &hKey);
 317         ok(lRet == ERROR_SUCCESS, "RegOpenKeyExA failed with %x\n", HRESULT_FROM_WIN32(lRet));
 318
 319         lRet = RegDeleteKeyA(hKey, szGuidstring);
 320         ok(lRet == ERROR_SUCCESS, "RegDeleteKeyA failed with %x\n", HRESULT_FROM_WIN32(lRet));
 321     }
 322
 323     if (hKey) RegCloseKey(hKey);
 324     hKey = NULL;
 325
 326     out:
 327
 328     if (pMapper) IFilterMapper_Release(pMapper);
 329     if (pMapper2) IFilterMapper2_Release(pMapper2);
 330 }
 331
 332 static ULONG getRefcount(IUnknown *iface)
 333 {
 334     IUnknown_AddRef(iface);
 335     return IUnknown_Release(iface);
 336 }
 337
 338 static void test_ifiltermapper_from_filtergraph(void)
 339 {
 340     IFilterGraph2* pgraph2 = NULL;
 341     IFilterMapper2 *pMapper2 = NULL;
 342     IFilterGraph *filtergraph = NULL;
 343     HRESULT hr;
 344     ULONG refcount;
 345
 346     hr = CoCreateInstance(&CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER, &IID_IFilterGraph2, (LPVOID*)&pgraph2);
 347     ok(hr == S_OK, "CoCreateInstance failed with %08x\n", hr);
 348     if (!pgraph2) goto out;
 349
 350     hr = IFilterGraph2_QueryInterface(pgraph2, &IID_IFilterMapper2, (LPVOID*)&pMapper2);
 351     ok(hr == S_OK, "IFilterGraph2_QueryInterface failed with %08x\n", hr);
 352     if (!pMapper2) goto out;
 353
 354     refcount = getRefcount((IUnknown*)pgraph2);
 355     ok(refcount == 2, "unexpected reference count: %u\n", refcount);
 356     refcount = getRefcount((IUnknown*)pMapper2);
 357     ok(refcount == 2, "unexpected reference count: %u\n", refcount);
 358
 359     IFilterMapper2_AddRef(pMapper2);
 360     refcount = getRefcount((IUnknown*)pgraph2);
 361     ok(refcount == 3, "unexpected reference count: %u\n", refcount);
 362     refcount = getRefcount((IUnknown*)pMapper2);
 363     ok(refcount == 3, "unexpected reference count: %u\n", refcount);
 364     IFilterMapper2_Release(pMapper2);
 365
 366     hr = IFilterMapper2_QueryInterface(pMapper2, &IID_IFilterGraph, (LPVOID*)&filtergraph);
 367     ok(hr == S_OK, "IFilterMapper2_QueryInterface failed with %08x\n", hr);
 368     if (!filtergraph) goto out;
 369
 370     IFilterMapper2_Release(pMapper2);
 371     pMapper2 = NULL;
 372     IFilterGraph_Release(filtergraph);
 373     filtergraph = NULL;
 374
 375     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER, &IID_IFilterMapper2, (LPVOID*)&pMapper2);
 376     ok(hr == S_OK, "CoCreateInstance failed with %08x\n", hr);
 377     if (!pMapper2) goto out;
 378
 379     hr = IFilterMapper2_QueryInterface(pMapper2, &IID_IFilterGraph, (LPVOID*)&filtergraph);
 380     ok(hr == E_NOINTERFACE, "IFilterMapper2_QueryInterface unexpected result: %08x\n", hr);
 381
 382     out:
 383
 384     if (pMapper2) IFilterMapper2_Release(pMapper2);
 385     if (filtergraph) IFilterGraph_Release(filtergraph);
 386     if (pgraph2) IFilterGraph2_Release(pgraph2);
 387 }
 388
 389 static void test_register_filter_with_null_clsMinorType(void)
 390 {
 391     IFilterMapper2 *pMapper = NULL;
 392     HRESULT hr;
 393     REGFILTER2 rgf2;
 394     REGFILTERPINS rgPins;
 395     REGFILTERPINS2 rgPins2;
 396     REGPINTYPES rgPinType;
 397     static WCHAR wszPinName[] = {'P', 'i', 'n', 0 };
 398     static const WCHAR wszFilterName1[] = {'T', 'e', 's', 't', 'f', 'i', 'l', 't', 'e', 'r', '1', 0 };
 399     static const WCHAR wszFilterName2[] = {'T', 'e', 's', 't', 'f', 'i', 'l', 't', 'e', 'r', '2', 0 };
 400     CLSID clsidFilter1;
 401     CLSID clsidFilter2;
 402
 403     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
 404             &IID_IFilterMapper2, (LPVOID*)&pMapper);
 405     ok(hr == S_OK, "CoCreateInstance failed with %x\n", hr);
 406     if (FAILED(hr)) goto out;
 407
 408     hr = CoCreateGuid(&clsidFilter1);
 409     ok(hr == S_OK, "CoCreateGuid failed with %x\n", hr);
 410     hr = CoCreateGuid(&clsidFilter2);
 411     ok(hr == S_OK, "CoCreateGuid failed with %x\n", hr);
 412
 413     rgPinType.clsMajorType = &GUID_NULL;
 414     /* Make sure quartz accepts it without crashing */
 415     rgPinType.clsMinorType = NULL;
 416
 417     /* Test with pin descript version 1 */
 418     ZeroMemory(&rgf2, sizeof(rgf2));
 419     rgf2.dwVersion = 1;
 420     rgf2.dwMerit = MERIT_UNLIKELY;
 421     S1(U(rgf2)).cPins = 1;
 422     S1(U(rgf2)).rgPins = &rgPins;
 423
 424     rgPins.strName = wszPinName;
 425     rgPins.bRendered = 1;
 426     rgPins.bOutput = 0;
 427     rgPins.bZero = 0;
 428     rgPins.bMany = 0;
 429     rgPins.clsConnectsToFilter = NULL;
 430     rgPins.strConnectsToPin = NULL;
 431     rgPins.nMediaTypes = 1;
 432     rgPins.lpMediaType = &rgPinType;
 433
 434     hr = IFilterMapper2_RegisterFilter(pMapper, &clsidFilter1, wszFilterName1, NULL,
 435                     &CLSID_LegacyAmFilterCategory, NULL, &rgf2);
 436     if (hr == E_ACCESSDENIED)
 437     {
 438         skip("Not authorized to register filters\n");
 439         goto out;
 440     }
 441     ok(hr == S_OK, "IFilterMapper2_RegisterFilter failed with %x\n", hr);
 442
 443     hr = IFilterMapper2_UnregisterFilter(pMapper, &CLSID_LegacyAmFilterCategory, NULL, &clsidFilter1);
 444     ok(hr == S_OK, "FilterMapper_UnregisterFilter failed with %x\n", hr);
 445
 446     /* Test with pin descript version 2 */
 447     ZeroMemory(&rgf2, sizeof(rgf2));
 448     rgf2.dwVersion = 2;
 449     rgf2.dwMerit = MERIT_UNLIKELY;
 450     S2(U(rgf2)).cPins2 = 1;
 451     S2(U(rgf2)).rgPins2 = &rgPins2;
 452
 453     rgPins2.dwFlags = REG_PINFLAG_B_RENDERER;
 454     rgPins2.cInstances = 1;
 455     rgPins2.nMediaTypes = 1;
 456     rgPins2.lpMediaType = &rgPinType;
 457     rgPins2.nMediums = 0;
 458     rgPins2.lpMedium = NULL;
 459     rgPins2.clsPinCategory = NULL;
 460
 461     hr = IFilterMapper2_RegisterFilter(pMapper, &clsidFilter2, wszFilterName2, NULL,
 462                     &CLSID_LegacyAmFilterCategory, NULL, &rgf2);
 463     ok(hr == S_OK, "IFilterMapper2_RegisterFilter failed with %x\n", hr);
 464
 465     hr = IFilterMapper2_UnregisterFilter(pMapper, &CLSID_LegacyAmFilterCategory, NULL, &clsidFilter2);
 466     ok(hr == S_OK, "FilterMapper_UnregisterFilter failed with %x\n", hr);
 467
 468     out:
 469
 470     if (pMapper) IFilterMapper2_Release(pMapper);
 471 }
 472
 473 static void test_parse_filter_data(void)
 474 {
 475     static const BYTE data_block[] = {
 476   0x02,0x00,0x00,0x00,0xff,0xff,0x5f,0x00,0x02,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x70,0x69,0x33,
 477   0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 478   0x30,0x74,0x79,0x33,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x70,0x00,0x00,0x00,0x31,0x70,0x69,0x33,
 479   0x08,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 480   0x30,0x74,0x79,0x33,0x00,0x00,0x00,0x00,0x60,0x00,0x00,0x00,0x70,0x00,0x00,0x00,0x76,0x69,0x64,0x73,
 481   0x00,0x00,0x10,0x00,0x80,0x00,0x00,0xaa,0x00,0x38,0x9b,0x71,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
 482   0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
 483
 484     BYTE *prgbRegFilter2 = NULL;
 485     REGFILTER2 *pRegFilter = NULL;
 486     IFilterMapper2 *pMapper = NULL;
 487     SAFEARRAYBOUND saBound;
 488     SAFEARRAY *psa = NULL;
 489     LPBYTE pbSAData = NULL;
 490     HRESULT hr;
 491
 492     IAMFilterData *pData = NULL;
 493
 494     hr = CoCreateInstance(&CLSID_FilterMapper2, NULL, CLSCTX_INPROC_SERVER,
 495             &IID_IFilterMapper2, (LPVOID*)&pMapper);
 496     ok((hr == S_OK || broken(hr != S_OK)), "CoCreateInstance failed with %x\n", hr);
 497     if (FAILED(hr)) goto out;
 498
 499     hr = IFilterMapper2_QueryInterface(pMapper, &IID_IAMFilterData, (LPVOID*)&pData);
 500     ok((hr == S_OK || broken(hr != S_OK)), "Unable to find IID_IAMFilterData interface\n");
 501     if (FAILED(hr)) goto out;
 502
 503     saBound.lLbound = 0;
 504     saBound.cElements = sizeof(data_block);
 505     psa = SafeArrayCreate(VT_UI1, 1, &saBound);
 506     ok(psa != NULL, "Unable to crate safe array\n");
 507     if (!psa) goto out;
 508     hr = SafeArrayAccessData(psa, (LPVOID *)&pbSAData);
 509     ok(hr == S_OK, "Unable to access array data\n");
 510     if (FAILED(hr)) goto out;
 511     memcpy(pbSAData, data_block, sizeof(data_block));
 512
 513     hr = IAMFilterData_ParseFilterData(pData, pbSAData, sizeof(data_block), &prgbRegFilter2);
 514     /* We cannot do anything here.  prgbRegFilter2 is very unstable */
 515     /* Pre Vista, this is a stack pointer so anything that changes the stack invalidats it */
 516     /* Post Vista, it is a static pointer in the data section of the module */
 517     pRegFilter =((REGFILTER2**)prgbRegFilter2)[0];
 518     ok (hr==S_OK,"Failed to Parse filter Data\n");
 519
 520     ok(IsBadReadPtr(prgbRegFilter2,sizeof(REGFILTER2*))==0,"Bad read pointer returned\n");
 521     ok(IsBadReadPtr(pRegFilter,sizeof(REGFILTER2))==0,"Bad read pointer for FilterData\n");
 522     ok(pRegFilter->dwMerit == 0x5fffff,"Incorrect merit returned\n");
 523
 524 out:
 525     if (pRegFilter)
 526         CoTaskMemFree(pRegFilter);
 527     if (psa)
 528     {
 529         SafeArrayUnaccessData(psa);
 530         SafeArrayDestroy(psa);
 531     }
 532     if (pData)
 533         IAMFilterData_Release(pData);
 534     if (pMapper)
 535         IFilterMapper2_Release(pMapper);
 536 }
 537
 538 START_TEST(filtermapper)
 539 {
 540     CoInitialize(NULL);
 541
 542     test_fm2_enummatchingfilters();
 543     test_legacy_filter_registration();
 544     test_ifiltermapper_from_filtergraph();
 545     test_register_filter_with_null_clsMinorType();
 546     test_parse_filter_data();
 547
 548     CoUninitialize();
 549 }