multimediacommsengine/tsrc/MCETestUI/MCETestUIEngine/inc/CMCETestUIEngineVideoStream.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:04:58 +0200
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/*
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* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:    
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*
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*/
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#ifndef __CMCETESTUIENGINEVIDEOSTREAM_H__
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#define __CMCETESTUIENGINEVIDEOSTREAM_H__
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// INCLUDES
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#include <MCEVideoCodec.h>
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#include <MCEMediaSource.h>
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#include <MCEMediaSink.h>
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#include "MMCETestUIEngineCmdProvider.h"
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#include <e32base.h>
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// FORWARD DECLARATIONS
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class CMCETestUIEngine;
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class CMceVideoStream;
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class CMCETestUIEngineVideoSink;
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class CMCETestUIEngineVideoSource;
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class CMCETestUIEngineVideoCodec;
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// CLASS DECLARATION
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/**
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* 
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* CMCETestUIEngineAudioStream provides a wrapper for CMCEAudioStream.
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* Class is not the traditional wrapper in a sense that it would 
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* conform to interface provided by CMCESession. Instead class
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* implements interface MMCETestUIEngineCmdProvider to provide
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* same kind of functionality in controlled way on different levels 
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* of abstraction.
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*
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*/
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class CMCETestUIEngineVideoStream : public CBase,
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                                    public MMCETestUIEngineCmdProvider
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    {
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    public: // public enumerations
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        enum TVideoDirection
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            {
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            EUpLink = 0,
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            EDownLink,
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            ENotSpesified            
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            };
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    public: // Constructors and destructors
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    	/**
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    	* Destructor.
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    	*/
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    	IMPORT_C virtual ~CMCETestUIEngineVideoStream();
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       /**
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        * Two-phased constructor. Not imported.
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        */
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        static CMCETestUIEngineVideoStream* NewL(
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            CMCETestUIEngine& aEngine, 
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            CMceVideoStream& aVideoStream );
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    public: // From MMCETestUICommandProvider
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        /**
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        * Gets the commands applicaple to this session object.
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        *
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        * @return reference to array of commands
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        */
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        IMPORT_C const RPointerArray<TMCETestUIEngineCmdBase>& 
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                    GetCommandsL();
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    public: // New functions
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	     /**
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        * @return Textual representation of the state of the wrapped MCEStream
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        */
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	    IMPORT_C const TDesC16& StreamState() ;
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	    /**
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	    * @return Direction of the session
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	    */
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	    IMPORT_C CMCETestUIEngineVideoStream::TVideoDirection VideoDirection() const;
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	    /**
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	    * @return Textual representation of session's direction
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	    */
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	    IMPORT_C const TDesC16& TextualVideoDirection() const;
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	    /**
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	    * Gets the state of the stream
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	    * @return Textual representation of streams state
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	    */
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        IMPORT_C const TDesC16& State() const;
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        IMPORT_C const RPointerArray<CMCETestUIEngineVideoSource>& SourcesL();
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        IMPORT_C const RPointerArray<CMCETestUIEngineVideoSink>& SinksL();
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        IMPORT_C RPointerArray<CMCETestUIEngineVideoCodec>& CodecsL(); 
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        IMPORT_C RPointerArray<CMCETestUIEngineVideoCodec>& CurrentCodecs();       
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    public: // New functions, internal
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        /**
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        * Gets wrapped MCEAudioStream object
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        * 
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        * @return wrapped MCEMCEAudioStream
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        */
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        CMceVideoStream& VideoStream();		
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        /**
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        *
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        * Solves and sets the direction of session based on streams and
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        * their properties.
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        *
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        * @return the newly set direction of session
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        */
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        CMCETestUIEngineVideoStream::TVideoDirection SolveVideoDirection();
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        TInt iOneTimeRTCPFlag;
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    private:  // private constructors
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        /**
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        * C++ default constructor. Not implemented.
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        */
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        CMCETestUIEngineVideoStream();	
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    protected:
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        /**
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        * C++ first phase constructor.
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        */
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        CMCETestUIEngineVideoStream( 
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                    CMCETestUIEngine& aEngine,
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                    CMceVideoStream& aVideoStream );
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       	/**
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        * Symbian second-phase constructor
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        */
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        void ConstructL();	   
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    protected:  // owned data  
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        // Commands applicable to an audiostream. Owned.
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       RPointerArray<TMCETestUIEngineCmdBase> iCommands;
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       RPointerArray<CMCETestUIEngineVideoSource> iSources;
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       RPointerArray<CMCETestUIEngineVideoSink> iSinks;
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       RPointerArray<CMCETestUIEngineVideoCodec> iCodecs;
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    protected:  // not owned data
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       CMCETestUIEngine& iEngine;       
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       // Reference to wrapped MCEAudioStream
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       CMceVideoStream& iVideoStream;
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       // Indicator of direction
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       CMCETestUIEngineVideoStream::TVideoDirection iVideoDirection;
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    };
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#endif