/* * Unit tests for Media Detector * * Copyright (C) 2008 Google (Lei Zhang, Dan Hipschman) * * 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 #define CONST_VTABLE #include "initguid.h" #include "ole2.h" #include "vfwmsgs.h" #include "uuids.h" #include "wine/test.h" #include "qedit.h" #include "control.h" #include "rc.h" static ULONG get_refcount(void *iface) { IUnknown *unknown = iface; IUnknown_AddRef(unknown); return IUnknown_Release(unknown); } 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_IMediaDet) || 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) { IMediaDet *detector, *detector2; IUnknown *unk, *unk2; HRESULT hr; ULONG ref; detector = (IMediaDet *)0xdeadbeef; hr = CoCreateInstance(&CLSID_MediaDet, &test_outer, CLSCTX_INPROC_SERVER, &IID_IMediaDet, (void **)&detector); ok(hr == E_NOINTERFACE, "Got hr %#x.\n", hr); ok(!detector, "Got interface %p.\n", detector); hr = CoCreateInstance(&CLSID_MediaDet, &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_IMediaDet, (void **)&detector); ok(hr == S_OK, "Got hr %#x.\n", hr); hr = IMediaDet_QueryInterface(detector, &IID_IUnknown, (void **)&unk2); ok(hr == S_OK, "Got hr %#x.\n", hr); ok(unk2 == (IUnknown *)0xdeadbeef, "Got unexpected IUnknown %p.\n", unk2); hr = IMediaDet_QueryInterface(detector, &IID_IMediaDet, (void **)&detector2); ok(hr == S_OK, "Got hr %#x.\n", hr); ok(detector2 == (IMediaDet *)0xdeadbeef, "Got unexpected IMediaDet %p.\n", detector2); 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 = IMediaDet_QueryInterface(detector, &test_iid, (void **)&unk2); ok(hr == S_OK, "Got hr %#x.\n", hr); ok(unk2 == (IUnknown *)0xdeadbeef, "Got unexpected IUnknown %p.\n", unk2); IMediaDet_Release(detector); ref = IUnknown_Release(unk); ok(!ref, "Got unexpected refcount %d.\n", ref); ok(outer_ref == 1, "Got unexpected refcount %d.\n", outer_ref); } static WCHAR test_avi_filename[MAX_PATH]; static WCHAR test_sound_avi_filename[MAX_PATH]; static BOOL unpack_avi_file(int id, WCHAR name[MAX_PATH]) { static WCHAR temp_path[MAX_PATH]; HRSRC res; HGLOBAL data; char *mem; DWORD size, written; HANDLE fh; BOOL ret; res = FindResourceW(NULL, MAKEINTRESOURCEW(id), MAKEINTRESOURCEW(AVI_RES_TYPE)); if (!res) return FALSE; data = LoadResource(NULL, res); if (!data) return FALSE; mem = LockResource(data); if (!mem) return FALSE; size = SizeofResource(NULL, res); if (size == 0) return FALSE; if (!GetTempPathW(MAX_PATH, temp_path)) return FALSE; /* We might end up relying on the extension here, so .TMP is no good. */ if (!GetTempFileNameW(temp_path, L"DES", 0, name)) return FALSE; DeleteFileW(name); wcscpy(name + wcslen(name) - 3, L"avi"); fh = CreateFileW(name, GENERIC_WRITE, 0, NULL, CREATE_NEW, FILE_ATTRIBUTE_NORMAL, NULL); if (fh == INVALID_HANDLE_VALUE) return FALSE; ret = WriteFile(fh, mem, size, &written, NULL); CloseHandle(fh); return ret && written == size; } static BOOL init_tests(void) { return unpack_avi_file(TEST_AVI_RES, test_avi_filename) && unpack_avi_file(TEST_SOUND_AVI_RES, test_sound_avi_filename); } static void test_mediadet(void) { HRESULT hr; IMediaDet *pM = NULL; BSTR filename = NULL; LONG nstrms = 0; LONG strm; AM_MEDIA_TYPE mt; double fps; int flags; int i; /* test.avi has one video stream. */ hr = CoCreateInstance(&CLSID_MediaDet, NULL, CLSCTX_INPROC_SERVER, &IID_IMediaDet, (LPVOID*)&pM); ok(hr == S_OK, "CoCreateInstance failed with %x\n", hr); ok(pM != NULL, "pM is NULL\n"); filename = NULL; hr = IMediaDet_get_Filename(pM, &filename); /* Despite what MSDN claims, this returns S_OK. */ ok(hr == S_OK, "IMediaDet_get_Filename failed: %08x\n", hr); ok(filename == NULL, "IMediaDet_get_Filename\n"); filename = (BSTR) -1; hr = IMediaDet_get_Filename(pM, &filename); /* Despite what MSDN claims, this returns S_OK. */ ok(hr == S_OK, "IMediaDet_get_Filename failed: %08x\n", hr); ok(filename == NULL, "IMediaDet_get_Filename\n"); nstrms = -1; hr = IMediaDet_get_OutputStreams(pM, &nstrms); ok(hr == E_INVALIDARG, "IMediaDet_get_OutputStreams failed: %08x\n", hr); ok(nstrms == -1, "IMediaDet_get_OutputStreams: nstrms is %i\n", nstrms); strm = -1; /* The stream defaults to 0, even without a file! */ hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == 0, "IMediaDet_get_CurrentStream: strm is %i\n", strm); hr = IMediaDet_get_CurrentStream(pM, NULL); ok(hr == E_POINTER, "IMediaDet_get_CurrentStream failed: %08x\n", hr); /* But put_CurrentStream doesn't. */ hr = IMediaDet_put_CurrentStream(pM, 0); ok(hr == E_INVALIDARG, "IMediaDet_put_CurrentStream failed: %08x\n", hr); hr = IMediaDet_put_CurrentStream(pM, -1); ok(hr == E_INVALIDARG, "IMediaDet_put_CurrentStream failed: %08x\n", hr); hr = IMediaDet_get_StreamMediaType(pM, &mt); ok(hr == E_INVALIDARG, "IMediaDet_get_StreamMediaType failed: %08x\n", hr); hr = IMediaDet_get_StreamMediaType(pM, NULL); ok(hr == E_POINTER, "IMediaDet_get_StreamMediaType failed: %08x\n", hr); filename = SysAllocString(test_avi_filename); hr = IMediaDet_put_Filename(pM, filename); ok(hr == S_OK, "IMediaDet_put_Filename failed: %08x\n", hr); SysFreeString(filename); strm = -1; /* The stream defaults to 0. */ hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == 0, "IMediaDet_get_CurrentStream: strm is %i\n", strm); ZeroMemory(&mt, sizeof mt); hr = IMediaDet_get_StreamMediaType(pM, &mt); ok(hr == S_OK, "IMediaDet_get_StreamMediaType failed: %08x\n", hr); CoTaskMemFree(mt.pbFormat); /* Even before get_OutputStreams. */ hr = IMediaDet_put_CurrentStream(pM, 1); ok(hr == E_INVALIDARG, "IMediaDet_put_CurrentStream failed: %08x\n", hr); hr = IMediaDet_get_OutputStreams(pM, &nstrms); ok(hr == S_OK, "IMediaDet_get_OutputStreams failed: %08x\n", hr); ok(nstrms == 1, "IMediaDet_get_OutputStreams: nstrms is %i\n", nstrms); filename = NULL; hr = IMediaDet_get_Filename(pM, &filename); ok(hr == S_OK, "IMediaDet_get_Filename failed: %08x\n", hr); ok(!wcscmp(filename, test_avi_filename), "Expected filename %s, got %s.\n", debugstr_w(test_avi_filename), debugstr_w(filename)); SysFreeString(filename); hr = IMediaDet_get_Filename(pM, NULL); ok(hr == E_POINTER, "IMediaDet_get_Filename failed: %08x\n", hr); strm = -1; hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == 0, "IMediaDet_get_CurrentStream: strm is %i\n", strm); hr = IMediaDet_get_CurrentStream(pM, NULL); ok(hr == E_POINTER, "IMediaDet_get_CurrentStream failed: %08x\n", hr); hr = IMediaDet_put_CurrentStream(pM, -1); ok(hr == E_INVALIDARG, "IMediaDet_put_CurrentStream failed: %08x\n", hr); hr = IMediaDet_put_CurrentStream(pM, 1); ok(hr == E_INVALIDARG, "IMediaDet_put_CurrentStream failed: %08x\n", hr); /* Try again. */ strm = -1; hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == 0, "IMediaDet_get_CurrentStream: strm is %i\n", strm); hr = IMediaDet_put_CurrentStream(pM, 0); ok(hr == S_OK, "IMediaDet_put_CurrentStream failed: %08x\n", hr); strm = -1; hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == 0, "IMediaDet_get_CurrentStream: strm is %i\n", strm); ZeroMemory(&mt, sizeof mt); hr = IMediaDet_get_StreamMediaType(pM, &mt); ok(hr == S_OK, "IMediaDet_get_StreamMediaType failed: %08x\n", hr); ok(IsEqualGUID(&mt.majortype, &MEDIATYPE_Video), "IMediaDet_get_StreamMediaType\n"); CoTaskMemFree(mt.pbFormat); hr = IMediaDet_get_FrameRate(pM, NULL); ok(hr == E_POINTER, "IMediaDet_get_FrameRate failed: %08x\n", hr); hr = IMediaDet_get_FrameRate(pM, &fps); ok(hr == S_OK, "IMediaDet_get_FrameRate failed: %08x\n", hr); ok(fps == 10.0, "IMediaDet_get_FrameRate: fps is %f\n", fps); hr = IMediaDet_Release(pM); ok(hr == 0, "IMediaDet_Release returned: %x\n", hr); DeleteFileW(test_avi_filename); /* test_sound.avi has one video stream and one audio stream. */ hr = CoCreateInstance(&CLSID_MediaDet, NULL, CLSCTX_INPROC_SERVER, &IID_IMediaDet, (LPVOID*)&pM); ok(hr == S_OK, "CoCreateInstance failed with %x\n", hr); ok(pM != NULL, "pM is NULL\n"); filename = SysAllocString(test_sound_avi_filename); hr = IMediaDet_put_Filename(pM, filename); ok(hr == S_OK, "IMediaDet_put_Filename failed: %08x\n", hr); SysFreeString(filename); hr = IMediaDet_get_OutputStreams(pM, &nstrms); ok(hr == S_OK, "IMediaDet_get_OutputStreams failed: %08x\n", hr); ok(nstrms == 2, "IMediaDet_get_OutputStreams: nstrms is %i\n", nstrms); filename = NULL; hr = IMediaDet_get_Filename(pM, &filename); ok(hr == S_OK, "IMediaDet_get_Filename failed: %08x\n", hr); ok(!wcscmp(filename, test_sound_avi_filename), "Expected filename %s, got %s.\n", debugstr_w(test_sound_avi_filename), debugstr_w(filename)); SysFreeString(filename); /* I don't know if the stream order is deterministic. Just check for both an audio and video stream. */ flags = 0; for (i = 0; i < 2; ++i) { hr = IMediaDet_put_CurrentStream(pM, i); ok(hr == S_OK, "IMediaDet_put_CurrentStream failed: %08x\n", hr); strm = -1; hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == i, "IMediaDet_get_CurrentStream: strm is %i\n", strm); ZeroMemory(&mt, sizeof mt); hr = IMediaDet_get_StreamMediaType(pM, &mt); ok(hr == S_OK, "IMediaDet_get_StreamMediaType failed: %08x\n", hr); flags += (IsEqualGUID(&mt.majortype, &MEDIATYPE_Video) ? 1 : (IsEqualGUID(&mt.majortype, &MEDIATYPE_Audio) ? 2 : 0)); if (IsEqualGUID(&mt.majortype, &MEDIATYPE_Audio)) { hr = IMediaDet_get_FrameRate(pM, &fps); ok(hr == VFW_E_INVALIDMEDIATYPE, "IMediaDet_get_FrameRate failed: %08x\n", hr); } CoTaskMemFree(mt.pbFormat); } ok(flags == 3, "IMediaDet_get_StreamMediaType: flags are %i\n", flags); hr = IMediaDet_put_CurrentStream(pM, 2); ok(hr == E_INVALIDARG, "IMediaDet_put_CurrentStream failed: %08x\n", hr); strm = -1; hr = IMediaDet_get_CurrentStream(pM, &strm); ok(hr == S_OK, "IMediaDet_get_CurrentStream failed: %08x\n", hr); ok(strm == 1, "IMediaDet_get_CurrentStream: strm is %i\n", strm); hr = IMediaDet_Release(pM); ok(hr == 0, "IMediaDet_Release returned: %x\n", hr); DeleteFileW(test_sound_avi_filename); } static HRESULT WINAPI ms_QueryInterface(IMediaSample *iface, REFIID riid, void **ppvObject) { return E_NOTIMPL; } static ULONG WINAPI ms_AddRef(IMediaSample *iface) { return 2; } static ULONG WINAPI ms_Release(IMediaSample *iface) { return 1; } static HRESULT WINAPI ms_GetPointer(IMediaSample *iface, BYTE **ppBuffer) { return E_NOTIMPL; } static LONG WINAPI ms_GetSize(IMediaSample *iface) { return E_NOTIMPL; } static HRESULT WINAPI ms_GetTime(IMediaSample *iface, REFERENCE_TIME *pTimeStart, REFERENCE_TIME *pTimeEnd) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetTime(IMediaSample *iface, REFERENCE_TIME *pTimeStart, REFERENCE_TIME *pTimeEnd) { return E_NOTIMPL; } static HRESULT WINAPI ms_IsSyncPoint(IMediaSample *iface) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetSyncPoint(IMediaSample *iface, BOOL bIsSyncPoint) { return E_NOTIMPL; } static HRESULT WINAPI ms_IsPreroll(IMediaSample *iface) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetPreroll(IMediaSample *iface, BOOL bIsPreroll) { return E_NOTIMPL; } static LONG WINAPI ms_GetActualDataLength(IMediaSample *iface) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetActualDataLength(IMediaSample *iface, LONG length) { return E_NOTIMPL; } static HRESULT WINAPI ms_GetMediaType(IMediaSample *iface, AM_MEDIA_TYPE **ppMediaType) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetMediaType(IMediaSample *iface, AM_MEDIA_TYPE *pMediaType) { return E_NOTIMPL; } static HRESULT WINAPI ms_IsDiscontinuity(IMediaSample *iface) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetDiscontinuity(IMediaSample *iface, BOOL bDiscontinuity) { return E_NOTIMPL; } static HRESULT WINAPI ms_GetMediaTime(IMediaSample *iface, LONGLONG *pTimeStart, LONGLONG *pTimeEnd) { return E_NOTIMPL; } static HRESULT WINAPI ms_SetMediaTime(IMediaSample *iface, LONGLONG *pTimeStart, LONGLONG *pTimeEnd) { return E_NOTIMPL; } static const IMediaSampleVtbl my_sample_vt = { ms_QueryInterface, ms_AddRef, ms_Release, ms_GetPointer, ms_GetSize, ms_GetTime, ms_SetTime, ms_IsSyncPoint, ms_SetSyncPoint, ms_IsPreroll, ms_SetPreroll, ms_GetActualDataLength, ms_SetActualDataLength, ms_GetMediaType, ms_SetMediaType, ms_IsDiscontinuity, ms_SetDiscontinuity, ms_GetMediaTime, ms_SetMediaTime }; static IMediaSample my_sample = { &my_sample_vt }; static BOOL samplecb_called = FALSE; static HRESULT WINAPI sgcb_QueryInterface(ISampleGrabberCB *iface, REFIID riid, void **ppvObject) { return E_NOTIMPL; } static ULONG WINAPI sgcb_AddRef(ISampleGrabberCB *iface) { return E_NOTIMPL; } static ULONG WINAPI sgcb_Release(ISampleGrabberCB *iface) { return E_NOTIMPL; } static HRESULT WINAPI sgcb_SampleCB(ISampleGrabberCB *iface, double SampleTime, IMediaSample *pSample) { ok(pSample == &my_sample, "Got wrong IMediaSample: %p, expected %p\n", pSample, &my_sample); samplecb_called = TRUE; return E_NOTIMPL; } static HRESULT WINAPI sgcb_BufferCB(ISampleGrabberCB *iface, double SampleTime, BYTE *pBuffer, LONG BufferLen) { ok(0, "BufferCB should not have been called\n"); return E_NOTIMPL; } static const ISampleGrabberCBVtbl sgcb_vt = { sgcb_QueryInterface, sgcb_AddRef, sgcb_Release, sgcb_SampleCB, sgcb_BufferCB }; static ISampleGrabberCB my_sg_cb = { &sgcb_vt }; static void test_samplegrabber(void) { ISampleGrabber *sg; IBaseFilter *bf; IPin *pin; IMemInputPin *inpin; IEnumPins *pins; HRESULT hr; FILTER_STATE fstate; /* Invalid RIID */ hr = CoCreateInstance(&CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER, &IID_IClassFactory, (void**)&sg); ok(hr == E_NOINTERFACE, "SampleGrabber create failed: %08x, expected E_NOINTERFACE\n", hr); hr = CoCreateInstance(&CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER, &IID_ISampleGrabber, (void**)&sg); ok(hr == S_OK, "SampleGrabber create failed: %08x, expected S_OK\n", hr); hr = ISampleGrabber_QueryInterface(sg, &IID_IBaseFilter, (void**)&bf); ok(hr == S_OK, "QueryInterface for IID_IBaseFilter failed: %08x\n", hr); hr = ISampleGrabber_SetCallback(sg, &my_sg_cb, 0); ok(hr == S_OK, "SetCallback failed: %08x\n", hr); hr = IBaseFilter_GetState(bf, 100, &fstate); ok(hr == S_OK, "Failed to get filter state: %08x\n", hr); ok(fstate == State_Stopped, "Got wrong filter state: %u\n", fstate); hr = IBaseFilter_EnumPins(bf, &pins); ok(hr == S_OK, "EnumPins create failed: %08x, expected S_OK\n", hr); hr = IEnumPins_Next(pins, 1, &pin, NULL); ok(hr == S_OK, "Next failed: %08x\n", hr); IEnumPins_Release(pins); hr = IPin_QueryInterface(pin, &IID_IMemInputPin, (void**)&inpin); ok(hr == S_OK, "QueryInterface(IMemInputPin) failed: %08x\n", hr); hr = IMemInputPin_Receive(inpin, &my_sample); ok(hr == S_OK, "Receive failed: %08x\n", hr); ok(samplecb_called == TRUE, "SampleCB should have been called\n"); IMemInputPin_Release(inpin); IPin_Release(pin); while (ISampleGrabber_Release(sg)); } static void test_COM_sg_enumpins(void) { IBaseFilter *bf; IEnumPins *pins, *pins2; IUnknown *unk; ULONG refcount; HRESULT hr; hr = CoCreateInstance(&CLSID_SampleGrabber, NULL, CLSCTX_INPROC_SERVER, &IID_IBaseFilter, (void**)&bf); ok(hr == S_OK, "SampleGrabber create failed: %08x, expected S_OK\n", hr); hr = IBaseFilter_EnumPins(bf, &pins); ok(hr == S_OK, "EnumPins create failed: %08x, expected S_OK\n", hr); /* Same refcount for all EnumPins interfaces */ refcount = IEnumPins_AddRef(pins); ok(refcount == 2, "refcount == %u, expected 2\n", refcount); hr = IEnumPins_QueryInterface(pins, &IID_IEnumPins, (void**)&pins2); ok(hr == S_OK, "QueryInterface for IID_IEnumPins failed: %08x\n", hr); ok(pins == pins2, "QueryInterface for self failed (%p != %p)\n", pins, pins2); IEnumPins_Release(pins2); hr = IEnumPins_QueryInterface(pins, &IID_IUnknown, (void**)&unk); ok(hr == S_OK, "QueryInterface for IID_IUnknown failed: %08x\n", hr); refcount = IUnknown_AddRef(unk); ok(refcount == 4, "refcount == %u, expected 4\n", refcount); refcount = IUnknown_Release(unk); while (IEnumPins_Release(pins)); IBaseFilter_Release(bf); } START_TEST(mediadet) { IMediaDet *detector; HRESULT hr; if (!init_tests()) { skip("Couldn't initialize tests!\n"); return; } CoInitialize(NULL); if (FAILED(hr = CoCreateInstance(&CLSID_MediaDet, NULL, CLSCTX_INPROC_SERVER, &IID_IMediaDet, (void **)&detector))) { /* qedit.dll does not exist on 2003. */ win_skip("Failed to create media detector object, hr %#x.\n", hr); return; } IMediaDet_Release(detector); test_aggregation(); test_mediadet(); test_samplegrabber(); test_COM_sg_enumpins(); CoUninitialize(); }