1 files changed, 91 insertions, 0 deletions
diff --git a/src/imaging/DSSampleGrabber.h b/src/imaging/DSSampleGrabber.h
new file mode 100644
index 0000000..8c3ba5e
--- /dev/null
+++ b/src/imaging/DSSampleGrabber.h
@@ -0,0 +1,91 @@
+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  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 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#ifndef _DSSampleGrabber_H_
+#define _DSSampleGrabber_H_
+
+#include "IDSSampleCallback.h"
+
+#include "../base/Exception.h"
+
+#include <Guiddef.h>
+#define _WIN32_DCOM
+#include <windows.h>
+#include <dshow.h>
+#include <dshowbase/mtype.h>
+#include <dshowbase/wxdebug.h>
+#include <dshowbase/combase.h>
+#include <dshowbase/reftime.h>
+#include <dshowbase/wxutil.h>
+#include <dshowbase/wxlist.h>
+#include <dshowbase/amfilter.h>
+#include <dshowbase/transfrm.h>
+#include <dshowbase/transip.h>
+
+// {87F09DC5-12BC-479d-A20F-21133C613037}
+DEFINE_GUID(IID_IlibavgGrabber, 
+0x87f09dc5, 0x12bc, 0x479d, 0xa2, 0xf, 0x21, 0x13, 0x3c, 0x61, 0x30, 0x37);
+
+namespace avg {
+
+MIDL_INTERFACE("6B652FFF-11FE-4FCE-92AD-0266B5D7C78F")
+IlibavgGrabber : public IUnknown
+{
+public:
+    virtual void STDMETHODCALLTYPE SetCallback(IDSSampleCallback* pCallback) = 0;
+};
+        
+class CSampleGrabberInPin;
+
+class CSampleGrabber : public CTransInPlaceFilter, IlibavgGrabber
+{
+public:
+    CSampleGrabber(IUnknown* pOuter, HRESULT* pHr);
+
+    STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
+    DECLARE_IUNKNOWN;
+
+    // IlibavgGrabber
+    void STDMETHODCALLTYPE SetCallback(IDSSampleCallback* pCallback);
+
+protected:
+    IDSSampleCallback* m_pCallback;
+    CCritSec m_Lock; // serialize access to our data
+
+    HRESULT CheckInputType(const CMediaType* pmt);
+    HRESULT Transform(IMediaSample* pms);
+
+    // override this so we can return S_FALSE directly. 
+    // The base class CTransInPlace
+    // Transform( ) method is called by it's 
+    // Receive( ) method. There is no way
+    // to get Transform( ) to return an S_FALSE value 
+    // (which means "stop giving me data"),
+    // to Receive( ) and get Receive( ) to return S_FALSE as well.
+    HRESULT Receive(IMediaSample* pms);
+
+private:
+    friend class CSampleGrabberInPin;
+};
+
+};
+
+#endif
+\ No newline at end of file