text: /*
   * DirectSound renderer filter unit tests
   *
   * Copyright (C) 2010 Maarten Lankhorst for CodeWeavers
   * Copyright (C) 2007 Google (Lei Zhang)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #define COBJMACROS
  #include "dshow.h"
  #include "initguid.h"
  #include "dsound.h"
  #include "amaudio.h"
  #include "wine/test.h"
  
  static const WCHAR sink_id[] = {'A','u','d','i','o',' ','I','n','p','u','t',' ','p','i','n',' ','(','r','e','n','d','e','r','e','d',')',0};
  
  static IBaseFilter *create_dsound_render(void)
  {
      IBaseFilter *filter = NULL;
      HRESULT hr = CoCreateInstance(&CLSID_DSoundRender, NULL, CLSCTX_INPROC_SERVER,
              &IID_IBaseFilter, (void **)&filter);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      return filter;
  }
  
  static ULONG get_refcount(void *iface)
  {
      IUnknown *unknown = iface;
      IUnknown_AddRef(unknown);
      return IUnknown_Release(unknown);
  }
  
  static HRESULT WINAPI property_bag_QueryInterface(IPropertyBag *iface, REFIID iid, void **out)
  {
      ok(0, "Unexpected call (iid %s).\n", wine_dbgstr_guid(iid));
      return E_NOINTERFACE;
  }
  
  static ULONG WINAPI property_bag_AddRef(IPropertyBag *iface)
  {
      ok(0, "Unexpected call.\n");
      return 2;
  }
  
  static ULONG WINAPI property_bag_Release(IPropertyBag *iface)
  {
      ok(0, "Unexpected call.\n");
      return 1;
  }
  
  static HRESULT WINAPI property_bag_Read(IPropertyBag *iface, const WCHAR *name, VARIANT *var, IErrorLog *log)
  {
      static const WCHAR dsguidW[] = {'D','S','G','u','i','d',0};
      WCHAR guidstr[39];
  
      ok(!lstrcmpW(name, dsguidW), "Got unexpected name %s.\n", wine_dbgstr_w(name));
      ok(V_VT(var) == VT_BSTR, "Got unexpected type %u.\n", V_VT(var));
      StringFromGUID2(&DSDEVID_DefaultPlayback, guidstr, ARRAY_SIZE(guidstr));
      V_BSTR(var) = SysAllocString(guidstr);
      return S_OK;
  }
  
  static HRESULT WINAPI property_bag_Write(IPropertyBag *iface, const WCHAR *name, VARIANT *var)
  {
      ok(0, "Unexpected call (name %s).\n", wine_dbgstr_w(name));
      return E_FAIL;
  }
  
  static const IPropertyBagVtbl property_bag_vtbl =
  {
      property_bag_QueryInterface,
      property_bag_AddRef,
      property_bag_Release,
      property_bag_Read,
      property_bag_Write,
  };
  
  static void test_property_bag(void)
  {
      IPropertyBag property_bag = {&property_bag_vtbl};
      IPersistPropertyBag *ppb;
      HRESULT hr;
      ULONG ref;
  
      hr = CoCreateInstance(&CLSID_DSoundRender, NULL, CLSCTX_INPROC_SERVER,
              &IID_IPersistPropertyBag, (void **)&ppb);
      todo_wine ok(hr == S_OK, "Got hr %#x.\n", hr);
      if (hr != S_OK) return;
  
      hr = IPersistPropertyBag_InitNew(ppb);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IPersistPropertyBag_Load(ppb, &property_bag, NULL);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      ref = IPersistPropertyBag_Release(ppb);
      ok(!ref, "Got unexpected refcount %d.\n", ref);
  }
  
  #define check_interface(a, b, c) check_interface_(__LINE__, a, b, c)
  static void check_interface_(unsigned int line, void *iface_ptr, REFIID iid, BOOL supported)
  {
      IUnknown *iface = iface_ptr;
      HRESULT hr, expected_hr;
      IUnknown *unk;
  
      expected_hr = supported ? S_OK : E_NOINTERFACE;
  
      hr = IUnknown_QueryInterface(iface, iid, (void **)&unk);
      ok_(__FILE__, line)(hr == expected_hr, "Got hr %#x, expected %#x.\n", hr, expected_hr);
      if (SUCCEEDED(hr))
          IUnknown_Release(unk);
  }
  
  static void test_interfaces(void)
  {
      IBaseFilter *filter = create_dsound_render();
      IPin *pin;
  
      check_interface(filter, &IID_IAMDirectSound, TRUE);
      check_interface(filter, &IID_IBaseFilter, TRUE);
      check_interface(filter, &IID_IBasicAudio, TRUE);
      todo_wine check_interface(filter, &IID_IDirectSound3DBuffer, TRUE);
      check_interface(filter, &IID_IMediaFilter, TRUE);
      check_interface(filter, &IID_IMediaPosition, TRUE);
      check_interface(filter, &IID_IMediaSeeking, TRUE);
      check_interface(filter, &IID_IPersist, TRUE);
      todo_wine check_interface(filter, &IID_IPersistPropertyBag, TRUE);
      check_interface(filter, &IID_IQualityControl, TRUE);
      check_interface(filter, &IID_IReferenceClock, TRUE);
      check_interface(filter, &IID_IUnknown, TRUE);
  
      check_interface(filter, &IID_IAMFilterMiscFlags, FALSE);
      check_interface(filter, &IID_IBasicVideo, FALSE);
      check_interface(filter, &IID_IDispatch, FALSE);
      check_interface(filter, &IID_IKsPropertySet, FALSE);
      check_interface(filter, &IID_IPin, FALSE);
      check_interface(filter, &IID_IQualProp, FALSE);
      check_interface(filter, &IID_IVideoWindow, FALSE);
  
      IBaseFilter_FindPin(filter, sink_id, &pin);
  
      check_interface(pin, &IID_IPin, TRUE);
      check_interface(pin, &IID_IMemInputPin, TRUE);
      todo_wine check_interface(pin, &IID_IQualityControl, TRUE);
      check_interface(pin, &IID_IUnknown, TRUE);
  
      check_interface(pin, &IID_IAsyncReader, FALSE);
      check_interface(pin, &IID_IMediaPosition, FALSE);
      todo_wine check_interface(pin, &IID_IMediaSeeking, FALSE);
  
      IPin_Release(pin);
      IBaseFilter_Release(filter);
  }
  
  static const GUID test_iid = {0x33333333};
  static LONG outer_ref = 1;
  
  static HRESULT WINAPI outer_QueryInterface(IUnknown *iface, REFIID iid, void **out)
  {
      if (IsEqualGUID(iid, &IID_IUnknown)
              || IsEqualGUID(iid, &IID_IBaseFilter)
              || IsEqualGUID(iid, &test_iid))
      {
          *out = (IUnknown *)0xdeadbeef;
          return S_OK;
      }
      ok(0, "unexpected call %s\n", wine_dbgstr_guid(iid));
      return E_NOINTERFACE;
  }
  
  static ULONG WINAPI outer_AddRef(IUnknown *iface)
  {
      return InterlockedIncrement(&outer_ref);
  }
  
  static ULONG WINAPI outer_Release(IUnknown *iface)
  {
      return InterlockedDecrement(&outer_ref);
  }
  
  static const IUnknownVtbl outer_vtbl =
  {
      outer_QueryInterface,
      outer_AddRef,
      outer_Release,
  };
  
  static IUnknown test_outer = {&outer_vtbl};
  
  static void test_aggregation(void)
  {
      IBaseFilter *filter, *filter2;
      IUnknown *unk, *unk2;
      HRESULT hr;
      ULONG ref;
  
      filter = (IBaseFilter *)0xdeadbeef;
      hr = CoCreateInstance(&CLSID_DSoundRender, &test_outer, CLSCTX_INPROC_SERVER,
              &IID_IBaseFilter, (void **)&filter);
      ok(hr == E_NOINTERFACE, "Got hr %#x.\n", hr);
      ok(!filter, "Got interface %p.\n", filter);
  
      hr = CoCreateInstance(&CLSID_DSoundRender, &test_outer, CLSCTX_INPROC_SERVER,
              &IID_IUnknown, (void **)&unk);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(outer_ref == 1, "Got unexpected refcount %d.\n", outer_ref);
      ok(unk != &test_outer, "Returned IUnknown should not be outer IUnknown.\n");
      ref = get_refcount(unk);
      ok(ref == 1, "Got unexpected refcount %d.\n", ref);
  
      ref = IUnknown_AddRef(unk);
      ok(ref == 2, "Got unexpected refcount %d.\n", ref);
      ok(outer_ref == 1, "Got unexpected refcount %d.\n", outer_ref);
  
      ref = IUnknown_Release(unk);
      ok(ref == 1, "Got unexpected refcount %d.\n", ref);
      ok(outer_ref == 1, "Got unexpected refcount %d.\n", outer_ref);
  
      hr = IUnknown_QueryInterface(unk, &IID_IUnknown, (void **)&unk2);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(unk2 == unk, "Got unexpected IUnknown %p.\n", unk2);
      IUnknown_Release(unk2);
  
      hr = IUnknown_QueryInterface(unk, &IID_IBaseFilter, (void **)&filter);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IBaseFilter_QueryInterface(filter, &IID_IUnknown, (void **)&unk2);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(unk2 == (IUnknown *)0xdeadbeef, "Got unexpected IUnknown %p.\n", unk2);
  
      hr = IBaseFilter_QueryInterface(filter, &IID_IBaseFilter, (void **)&filter2);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(filter2 == (IBaseFilter *)0xdeadbeef, "Got unexpected IBaseFilter %p.\n", filter2);
  
      hr = IUnknown_QueryInterface(unk, &test_iid, (void **)&unk2);
      ok(hr == E_NOINTERFACE, "Got hr %#x.\n", hr);
      ok(!unk2, "Got unexpected IUnknown %p.\n", unk2);
  
      hr = IBaseFilter_QueryInterface(filter, &test_iid, (void **)&unk2);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(unk2 == (IUnknown *)0xdeadbeef, "Got unexpected IUnknown %p.\n", unk2);
  
      IBaseFilter_Release(filter);
      ref = IUnknown_Release(unk);
      ok(!ref, "Got unexpected refcount %d.\n", ref);
      ok(outer_ref == 1, "Got unexpected refcount %d.\n", outer_ref);
  }
  
  static void test_enum_pins(void)
  {
      IBaseFilter *filter = create_dsound_render();
      IEnumPins *enum1, *enum2;
      ULONG count, ref;
      IPin *pins[2];
      HRESULT hr;
  
      ref = get_refcount(filter);
      ok(ref == 1, "Got unexpected refcount %d.\n", ref);
  
      hr = IBaseFilter_EnumPins(filter, NULL);
      ok(hr == E_POINTER, "Got hr %#x.\n", hr);
  
      hr = IBaseFilter_EnumPins(filter, &enum1);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ref = get_refcount(filter);
      ok(ref == 2, "Got unexpected refcount %d.\n", ref);
      ref = get_refcount(enum1);
      ok(ref == 1, "Got unexpected refcount %d.\n", ref);
  
      hr = IEnumPins_Next(enum1, 1, NULL, NULL);
      ok(hr == E_POINTER, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum1, 1, pins, NULL);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ref = get_refcount(filter);
  todo_wine
      ok(ref == 3, "Got unexpected refcount %d.\n", ref);
      ref = get_refcount(pins[0]);
  todo_wine
      ok(ref == 3, "Got unexpected refcount %d.\n", ref);
      ref = get_refcount(enum1);
      ok(ref == 1, "Got unexpected refcount %d.\n", ref);
      IPin_Release(pins[0]);
      ref = get_refcount(filter);
      ok(ref == 2, "Got unexpected refcount %d.\n", ref);
  
      hr = IEnumPins_Next(enum1, 1, pins, NULL);
      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Reset(enum1);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum1, 1, pins, &count);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(count == 1, "Got count %u.\n", count);
      IPin_Release(pins[0]);
  
      hr = IEnumPins_Next(enum1, 1, pins, &count);
      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
      ok(!count, "Got count %u.\n", count);
  
      hr = IEnumPins_Reset(enum1);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum1, 2, pins, NULL);
      ok(hr == E_INVALIDARG, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum1, 2, pins, &count);
      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
      ok(count == 1, "Got count %u.\n", count);
      IPin_Release(pins[0]);
  
      hr = IEnumPins_Reset(enum1);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Clone(enum1, &enum2);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Skip(enum1, 2);
      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Skip(enum1, 1);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Skip(enum1, 1);
      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum1, 1, pins, NULL);
      ok(hr == S_FALSE, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum2, 1, pins, NULL);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      IPin_Release(pins[0]);
  
      IEnumPins_Release(enum2);
      IEnumPins_Release(enum1);
      ref = IBaseFilter_Release(filter);
      ok(!ref, "Got outstanding refcount %d.\n", ref);
  }
  
  static void test_find_pin(void)
  {
      static const WCHAR inW[] = {'I','n',0};
      static const WCHAR input_pinW[] = {'i','n','p','u','t',' ','p','i','n',0};
      IBaseFilter *filter = create_dsound_render();
      IEnumPins *enum_pins;
      IPin *pin, *pin2;
      HRESULT hr;
      ULONG ref;
  
      hr = IBaseFilter_FindPin(filter, inW, &pin);
      ok(hr == VFW_E_NOT_FOUND, "Got hr %#x.\n", hr);
  
      hr = IBaseFilter_FindPin(filter, input_pinW, &pin);
      ok(hr == VFW_E_NOT_FOUND, "Got hr %#x.\n", hr);
  
      hr = IBaseFilter_FindPin(filter, sink_id, &pin);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IBaseFilter_EnumPins(filter, &enum_pins);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IEnumPins_Next(enum_pins, 1, &pin2, NULL);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(pin == pin2, "Expected pin %p, got %p.\n", pin2, pin);
      IPin_Release(pin);
      IPin_Release(pin2);
  
      IEnumPins_Release(enum_pins);
      ref = IBaseFilter_Release(filter);
      ok(!ref, "Got outstanding refcount %d.\n", ref);
  }
  
  static void test_pin_info(void)
  {
      IBaseFilter *filter = create_dsound_render();
      PIN_DIRECTION dir;
      PIN_INFO info;
      HRESULT hr;
      WCHAR *id;
      ULONG ref;
      IPin *pin;
  
      hr = IBaseFilter_FindPin(filter, sink_id, &pin);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ref = get_refcount(filter);
      todo_wine ok(ref == 2, "Got unexpected refcount %d.\n", ref);
      ref = get_refcount(pin);
      ok(ref == 2, "Got unexpected refcount %d.\n", ref);
  
      hr = IPin_QueryPinInfo(pin, &info);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(info.pFilter == filter, "Expected filter %p, got %p.\n", filter, info.pFilter);
      ok(info.dir == PINDIR_INPUT, "Got direction %d.\n", info.dir);
      ok(!lstrcmpW(info.achName, sink_id), "Got name %s.\n", wine_dbgstr_w(info.achName));
      ref = get_refcount(filter);
      todo_wine ok(ref == 3, "Got unexpected refcount %d.\n", ref);
      ref = get_refcount(pin);
      todo_wine ok(ref == 3, "Got unexpected refcount %d.\n", ref);
      IBaseFilter_Release(info.pFilter);
  
      hr = IPin_QueryDirection(pin, &dir);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(dir == PINDIR_INPUT, "Got direction %d.\n", dir);
  
      hr = IPin_QueryId(pin, &id);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(!lstrcmpW(id, sink_id), "Got id %s.\n", wine_dbgstr_w(id));
      CoTaskMemFree(id);
  
      hr = IPin_QueryInternalConnections(pin, NULL, NULL);
      ok(hr == E_NOTIMPL, "Got hr %#x.\n", hr);
  
      IPin_Release(pin);
      ref = IBaseFilter_Release(filter);
      ok(!ref, "Got outstanding refcount %d.\n", ref);
  }
  
  static void test_basic_audio(void)
  {
      IBaseFilter *filter = create_dsound_render();
      LONG balance, volume;
      ITypeInfo *typeinfo;
      IBasicAudio *audio;
      TYPEATTR *typeattr;
      ULONG ref, count;
      HRESULT hr;
  
      hr = IBaseFilter_QueryInterface(filter, &IID_IBasicAudio, (void **)&audio);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IBasicAudio_get_Balance(audio, NULL);
      ok(hr == E_POINTER, "Got hr %#x.\n", hr);
  
      hr = IBasicAudio_get_Balance(audio, &balance);
      if (hr != VFW_E_MONO_AUDIO_HW)
      {
          ok(hr == S_OK, "Got hr %#x.\n", hr);
          ok(balance == 0, "Got balance %d.\n", balance);
  
          hr = IBasicAudio_put_Balance(audio, DSBPAN_LEFT - 1);
          ok(hr == E_INVALIDARG, "Got hr %#x.\n", hr);
  
          hr = IBasicAudio_put_Balance(audio, DSBPAN_LEFT);
          ok(hr == S_OK, "Got hr %#x.\n", hr);
  
          hr = IBasicAudio_get_Balance(audio, &balance);
          ok(hr == S_OK, "Got hr %#x.\n", hr);
          ok(balance == DSBPAN_LEFT, "Got balance %d.\n", balance);
      }
  
      hr = IBasicAudio_get_Volume(audio, &volume);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(volume == 0, "Got volume %d.\n", volume);
  
      hr = IBasicAudio_put_Volume(audio, DSBVOLUME_MIN - 1);
      ok(hr == E_INVALIDARG, "Got hr %#x.\n", hr);
  
      hr = IBasicAudio_put_Volume(audio, DSBVOLUME_MIN);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
  
      hr = IBasicAudio_get_Volume(audio, &volume);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(volume == DSBVOLUME_MIN, "Got volume %d.\n", volume);
  
      hr = IBasicAudio_GetTypeInfoCount(audio, &count);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(count == 1, "Got count %u.\n", count);
  
      hr = IBasicAudio_GetTypeInfo(audio, 0, 0, &typeinfo);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      hr = ITypeInfo_GetTypeAttr(typeinfo, &typeattr);
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      ok(typeattr->typekind == TKIND_DISPATCH, "Got kind %u.\n", typeattr->typekind);
      ok(IsEqualGUID(&typeattr->guid, &IID_IBasicAudio), "Got IID %s.\n", wine_dbgstr_guid(&typeattr->guid));
      ITypeInfo_ReleaseTypeAttr(typeinfo, typeattr);
      ITypeInfo_Release(typeinfo);
  
      IBasicAudio_Release(audio);
      ref = IBaseFilter_Release(filter);
      ok(!ref, "Got outstanding refcount %d.\n", ref);
  }
  
  static void test_pin(IPin *pin)
  {
      IMemInputPin *mpin = NULL;
  
      IPin_QueryInterface(pin, &IID_IMemInputPin, (void **)&mpin);
  
      ok(mpin != NULL, "No IMemInputPin found!\n");
      if (mpin)
      {
          ok(IMemInputPin_ReceiveCanBlock(mpin) == S_OK, "Receive can't block for pin!\n");
          ok(IMemInputPin_NotifyAllocator(mpin, NULL, 0) == E_POINTER, "NotifyAllocator likes a NULL pointer argument\n");
          IMemInputPin_Release(mpin);
      }
      /* TODO */
  }
  
  static void test_basefilter(void)
  {
      IEnumPins *pin_enum = NULL;
      IBaseFilter *base = create_dsound_render();
      IPin *pins[2];
      ULONG ref;
      HRESULT hr;
  
      hr = IBaseFilter_EnumPins(base, NULL);
      ok(hr == E_POINTER, "hr = %08x and not E_POINTER\n", hr);
  
      hr= IBaseFilter_EnumPins(base, &pin_enum);
      ok(hr == S_OK, "hr = %08x and not S_OK\n", hr);
  
      hr = IEnumPins_Next(pin_enum, 1, NULL, NULL);
      ok(hr == E_POINTER, "hr = %08x and not E_POINTER\n", hr);
  
      hr = IEnumPins_Next(pin_enum, 2, pins, NULL);
      ok(hr == E_INVALIDARG, "hr = %08x and not E_INVALIDARG\n", hr);
  
      pins[0] = (void *)0xdead;
      pins[1] = (void *)0xdeed;
  
      hr = IEnumPins_Next(pin_enum, 2, pins, &ref);
      ok(hr == S_FALSE, "hr = %08x instead of S_FALSE\n", hr);
      ok(pins[0] != (void *)0xdead && pins[0] != NULL, "pins[0] = %p\n", pins[0]);
      if (pins[0] != (void *)0xdead && pins[0] != NULL)
      {
          test_pin(pins[0]);
          IPin_Release(pins[0]);
      }
  
      ok(pins[1] == (void *)0xdeed, "pins[1] = %p\n", pins[1]);
  
      ref = IEnumPins_Release(pin_enum);
      ok(ref == 0, "ref is %u and not 0!\n", ref);
  
      IBaseFilter_Release(base);
  }
  
  START_TEST(dsoundrender)
  {
      IBaseFilter *filter;
      HRESULT hr;
  
      CoInitialize(NULL);
  
      hr = CoCreateInstance(&CLSID_DSoundRender, NULL, CLSCTX_INPROC_SERVER,
              &IID_IBaseFilter, (void **)&filter);
      if (hr == VFW_E_NO_AUDIO_HARDWARE)
      {
          skip("No audio hardware.\n");
          CoUninitialize();
          return;
      }
      ok(hr == S_OK, "Got hr %#x.\n", hr);
      IBaseFilter_Release(filter);
  
      test_property_bag();
      test_interfaces();
      test_aggregation();
      test_enum_pins();
      test_find_pin();
      test_pin_info();
      test_basic_audio();
      test_basefilter();
  
      CoUninitialize();
  }
  