1 | #include <winsdkver.h> |
---|
2 | #include <sdkddkver.h> |
---|
3 | #include <stdio.h> |
---|
4 | #include <tchar.h> |
---|
5 | #include <mfapi.h> |
---|
6 | #include <mfidl.h> |
---|
7 | #include <mfreadwrite.h> |
---|
8 | #include <atlbase.h> |
---|
9 | #include <atlcom.h> |
---|
10 | |
---|
11 | #pragma comment(lib, "mfplat.lib") |
---|
12 | #pragma comment(lib, "mf.lib") |
---|
13 | #pragma comment(lib, "mfreadwrite.lib") |
---|
14 | |
---|
15 | #define __C ATLENSURE_SUCCEEDED |
---|
16 | #define __D ATLENSURE_THROW |
---|
17 | |
---|
18 | static UINT32 g_nIndex = 0; |
---|
19 | |
---|
20 | int main() |
---|
21 | { |
---|
22 | __C(MFStartup(MF_VERSION)); |
---|
23 | { |
---|
24 | CComPtr<IMFMediaSource> pMediaSource; |
---|
25 | { |
---|
26 | CComPtr<IMFAttributes> pAttributes; |
---|
27 | __C(MFCreateAttributes(&pAttributes, 1)); |
---|
28 | __C(pAttributes->SetGUID(MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE, MF_DEVSOURCE_ATTRIBUTE_SOURCE_TYPE_VIDCAP_GUID)); |
---|
29 | CComHeapPtr<IMFActivate*> ppActivates; |
---|
30 | UINT32 nActivateCount = 0; |
---|
31 | __C(MFEnumDeviceSources(pAttributes, &ppActivates, &nActivateCount)); |
---|
32 | __D(g_nIndex < nActivateCount, E_INVALIDARG); |
---|
33 | const CComPtr<IMFActivate> pActivate = ppActivates[g_nIndex]; |
---|
34 | for(UINT32 nIndex = 0; nIndex < nActivateCount; nIndex++) |
---|
35 | reinterpret_cast<CComPtr<IMFActivate>&>(ppActivates[nIndex]).Release(); |
---|
36 | __C(pActivate->ActivateObject(__uuidof(IMFMediaSource), (VOID**) &pMediaSource)); |
---|
37 | CComHeapPtr<WCHAR> pszFriendlyName; |
---|
38 | __C(pActivate->GetAllocatedString(MF_DEVSOURCE_ATTRIBUTE_FRIENDLY_NAME, &pszFriendlyName, NULL)); |
---|
39 | _tprintf(_T("Friendly Name: %ls\n"), (LPCWSTR) pszFriendlyName); |
---|
40 | } |
---|
41 | CComPtr<IMFSourceReader> pSourceReader; |
---|
42 | __C(MFCreateSourceReaderFromMediaSource(pMediaSource, NULL, &pSourceReader)); |
---|
43 | LONGLONG nBaseTime = 0; |
---|
44 | for(; ; ) |
---|
45 | { |
---|
46 | DWORD nStreamIndex; |
---|
47 | DWORD nStreamFlags; |
---|
48 | LONGLONG nTime; |
---|
49 | CComPtr<IMFSample> pSample; |
---|
50 | __C(pSourceReader->ReadSample(MF_SOURCE_READER_ANY_STREAM, 0, &nStreamIndex, &nStreamFlags, &nTime, &pSample)); |
---|
51 | nTime -= nBaseTime; |
---|
52 | _tprintf(_T("nStreamIndex %d, nStreamFlags 0x%X, nTime %.3f, pSample 0x%p\n"), nStreamIndex, nStreamFlags, nTime / 1E7, (IMFSample*) pSample); |
---|
53 | if(nStreamIndex == 0 && (nStreamFlags & MF_SOURCE_READERF_STREAMTICK)) |
---|
54 | { |
---|
55 | ATLASSERT(!pSample); |
---|
56 | nBaseTime = nTime; |
---|
57 | continue; |
---|
58 | } |
---|
59 | } |
---|
60 | } |
---|
61 | __C(MFShutdown()); |
---|
62 | return 0; |
---|
63 | } |
---|
64 | |
---|