Initial community commit

Src/Plugins/Input/in_dshow/base/sysclock.h

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+//------------------------------------------------------------------------------
+// File: SysClock.h
+//
+// Desc: DirectShow base classes - defines a system clock implementation of
+//       IReferenceClock.
+//
+// Copyright (c) 1992-2001 Microsoft Corporation.  All rights reserved.
+//------------------------------------------------------------------------------
+
+
+#ifndef __SYSTEMCLOCK__
+#define __SYSTEMCLOCK__
+
+//
+// Base clock.  Uses timeGetTime ONLY
+// Uses most of the code in the base reference clock.
+// Provides GetTime
+//
+
+class CSystemClock : public CBaseReferenceClock, public IAMClockAdjust, public IPersist
+{
+public:
+    // We must be able to create an instance of ourselves
+    static CUnknown * WINAPI CreateInstance(__inout_opt LPUNKNOWN pUnk, __inout HRESULT *phr);
+    CSystemClock(__in_opt LPCTSTR pName, __inout_opt LPUNKNOWN pUnk, __inout HRESULT *phr);
+
+    DECLARE_IUNKNOWN
+
+    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, __deref_out void ** ppv);
+
+    // Yield up our class id so that we can be persisted
+    // Implement required Ipersist method
+    STDMETHODIMP GetClassID(__out CLSID *pClsID);
+
+    //  IAMClockAdjust methods
+    STDMETHODIMP SetClockDelta(REFERENCE_TIME rtDelta);
+}; //CSystemClock
+
+#endif /* __SYSTEMCLOCK__ */