diff -r 6369bfd1b60d -r 08b5eae9f9ff upnpsharing/upnpgstwrapper/inc/upnpgstwrapper.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upnpsharing/upnpgstwrapper/inc/upnpgstwrapper.h	Wed Nov 03 11:45:09 2010 +0200
@@ -0,0 +1,281 @@
+/*
+* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  UPnP GStreamer wrapper
+*
+*/
+
+#ifndef C_UPNPGSTWRAPPER_H
+#define C_UPNPGSTWRAPPER_H
+
+// INCLUDES
+#include <e32base.h>
+#include <badesca.h>
+#include <e32debug.h>
+
+#include "upnpgstwrapperobserver.h"
+
+class CUpnpGstWrapperPimpl;
+
+class CUpnpGstWrapper : public CActive
+    {
+    
+public: // construction / destruction
+    
+
+    /**
+     * Get wrapper instance.
+     * Increased reference count by 1.
+     *
+     * @return none
+     */
+    IMPORT_C static CUpnpGstWrapper* GetInstanceL();
+    
+    /**
+     * Decreses reference count by 1. 
+     * If reference count decreses to zero, singleton will be deleted.
+     *
+     * @return none
+     */
+    IMPORT_C void Close();
+
+private: // construction, private part
+    
+    /**
+     * Constructor
+     */
+    CUpnpGstWrapper();
+    
+    /**
+     * Destructor
+     */
+    IMPORT_C virtual ~CUpnpGstWrapper();
+    
+    /**
+     * 2nd phrase Constructor
+     */
+    void ConstructL();
+
+public:
+    
+    /**
+     * Set observer
+     *
+     * @param MUpnpGstWrapperObserver observer to be set
+     * @return none
+     */
+    IMPORT_C void SetObserverL( MUpnpGstWrapperObserver& aObserver );
+    
+    /**
+     * Remove observer
+     *
+     * @param MUpnpGstWrapperObserver observer to be removed
+     * @return none
+     */
+    IMPORT_C void RemoveObserver( MUpnpGstWrapperObserver& aObserver );
+    
+    /**
+     * Start a pipeline; e.g. transcoding. This is used when client knows 
+     * exactly what the pipeline is and the elements inside
+     * 
+     * @return none
+     */
+    IMPORT_C void StartL();
+    
+    /**
+     * Stop the pipeline; e.g. transcoding
+     * 
+     * @param none
+     * @return none
+     */
+    IMPORT_C void Stop();
+    
+    /**
+     * Return the error description
+     * 
+     * @param None
+     * @return A reference to the error description
+     */
+    IMPORT_C const TDesC& ErrorMsg();
+	
+    /**
+     * Return list of currently supported GStreamer features
+     * Note: Ownership of the array is passed to the caller
+     * 
+     * @param None
+     * @return A pointer to descriptor array
+     */
+    IMPORT_C CDesCArray* FeatureListL();
+    
+    /**
+     * Return the video info descriptor 
+     * 
+     * E.g.: 
+     * video/x-h264, width=(int)1280, height=(int)720, 
+     * framerate=(fraction)30000/1, codec_data=(buffer)0164401fffe10010276400
+     * 1fac2b402802dd80b4078913501000528ee025cb0
+     * 
+     * @param None
+     * @return A reference to video info descriptor
+     */
+    IMPORT_C const TDesC& VideoInfo();
+    
+    /**
+     * Return the audio info descriptor 
+     * 
+     * E.g.: 
+     * audio/mpeg, rate=(int)48000, channels=(int)1, 
+     * channel-positions=(GstAudioChannelPosition)< 
+     * GST_AUDIO_CHANNEL_POSITION_FRONT_MONO >, mpegversion(int)4, 
+     * codec_data=(buffer)1188
+     * 
+     * @param None
+     * @return A reference to audio info descriptor
+     */
+    IMPORT_C const TDesC& AudioInfo();
+    
+    /**
+     * Return (transoding) position in nanoseconds.
+     * 
+     * @return Postion in nanoseconds; KErrNotFound if position not available
+     */
+    IMPORT_C TInt64 Position();
+    
+    /**
+     * Return (transoding) duration in nanoseconds.
+     * 
+     * @return Duration in nanoseconds; KErrNotFound if duration not available 
+     */
+    IMPORT_C TInt64 Duration();
+    
+    /**
+     * Return pointter to GStreamer pipeline.
+     * 
+     * @return Pointer to GStreamer pipeline.
+     */
+    IMPORT_C TAny* PipelinePtr();
+    
+	/**
+	 * Initialises gstreamer appsink element named sinkbuffer if there is
+	 */
+    IMPORT_C void InitAppsinkL();
+    
+	/**
+	 * pulls buffer from gstreamer appsink element
+	 * 
+	 * @return boolean true if end of transcoding
+	 */
+    IMPORT_C TBool PullBufferL( TPtr8& aPointer,TInt aMaxBytesLength, RBuf8* aBuf=NULL );
+    
+	/**
+	 * returns count of bytes transcoded so far
+	 */
+    IMPORT_C TInt TranscodedBytes();
+
+    /**
+     * Setter
+     */
+    IMPORT_C void SetTranscodedFileSize( TInt aSize );
+    
+    /**
+     * getter
+     */
+    IMPORT_C TInt TranscodedFileSize();
+    
+    /**
+     * sets pipline has to be set before calling start()
+     * 
+     * @param aPipeline
+     */
+    IMPORT_C void SetPipelineL( const TDesC8& aPipeline );
+        
+    
+private:
+           
+    /**
+     * Set error message
+     * 
+     * @param TDesC& a reference to error message descriptor
+     * @return none 
+     */            
+    void SetErrorMsgL( const TDesC& aErrorMsg );
+    
+    /**
+     * Set error message
+     * 
+     * @param TDesC& a reference to error message descriptor
+     * @return none 
+     */            
+    void SetErrorMsg( HBufC* const aErrorMsg );    
+    
+    /**
+     * Convert char array to symbian descriptor
+     * 
+     * @param char* the reference of input string
+     * @return HBufC* the pointer to the output 
+     */    
+    HBufC* ConvertCharToDescL( const char* aString );
+    
+    /**
+     * Convert symbian description to char array
+     * 
+     * @param TDesC8& the reference of input string
+     * @return char* the pointer to the output 
+     */    
+    char* ConvertDescToCharL( const TDesC8& aDescriptor );
+    
+    /**
+     * Send an event to every registered observer.
+     * 
+     * @param Gst::TEvent evnet to be sent
+     * @return None
+     */        
+    void SendEventToObsevers( Gst::TEvent aEvent );
+    
+private: // from CActive
+    
+    /**
+     * @see e32base.h
+     */
+    void RunL();
+
+    /**
+     * @see e32base.h
+     */
+    void DoCancel();
+    
+private:
+    
+    CUpnpGstWrapperPimpl*                  iPimpl;    
+    TThreadId                              iClientThreadId;
+    HBufC*                                 iErrorMsg;       //owned
+    HBufC*                                 iVideoInfo;      //owned
+    HBufC*                                 iAudioInfo;      //owned
+    RArray<Gst::TEvent>                    iEventQueue;
+    RMutex                                 iMutex;
+    TInt64                                 iDuration;
+    TInt                                   iSingletonRefCount;
+    RPointerArray<MUpnpGstWrapperObserver> iObservers;
+    TInt                                   iFileSize;
+    
+    HBufC8*                                iPipeline;
+    
+private:
+    
+    friend class CUpnpGstWrapperPimpl;
+    
+    };
+
+
+#endif // C_UPNPGSTWRAPPER_H
+