vtprotocolsstub/inc/cvideoconfighandler.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 14 Apr 2010 16:00:08 +0300
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/*
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* Copyright (c) 2008 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:  Video configuration interface
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*
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*/
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#ifndef CVideoConfigHandler_H
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#define CVideoConfigHandler_H
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NONSHARABLE_CLASS( TVideoConfigHandler )
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    {
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    public:
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        /**
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         * Constructor.
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         */
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        TVideoConfigHandler(MVtProtocolHandler* aProtocolHandler);
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    private:
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        MVtProtocolHandler* iProtocolHandler;
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    };
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NONSHARABLE_CLASS( CVideoConfigCommand ) : public CBase,
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                                           public MVtVideoConfigCommand
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    {
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    public:
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        /**
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         * Destructor.
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         */
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        ~CVideoConfigCommand();
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        /**
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         * Sets the I-Frame refresh rate of the encoded output.
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         *
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         * @param aIFrameInterval I-Frame rate in seconds per I-Frame
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         * @return True if successful, else false
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         */
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        virtual TInt SetIntraFrameInterval(TUint32 aIFrameInterval);
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        /**
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         * Requests the encoder to encode the next frame as an I-Frame.  This menthod is valid
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         * only when the node is in EPVMFNodeStarted state. If successful, the next encoded
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         * frame will be an I-Frame.
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         *
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         * @return True for success, else false
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         */
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        virtual TInt RequestNextIntraFrame();
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        /**
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         * Sets the frame rate of encoded output for the specified layer.
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         * @param aFrameRate Frame rate for the specified layer in frames per second.
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         * @return True if successful, else false.
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         */
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        virtual TInt SetVideoFrameRate(TUint32 aFrameRate);
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        /**
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         * This API allows the user to specify separate observers for the extension interface.  
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         * 
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         * @param aHandler     the observer for unsolicited informational events
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         **/
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        virtual void SetObserverL(MVtProtocolHandler* aHandler);
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    private:
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        TVideoConfigHandler* iVideoConfigHandler;
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    };
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#endif
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//  End of File