multimediacommsengine/mmcesrv/mmcemediamanager/inc/mcemediasdpcodec.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 27 May 2010 13:16:26 +0300
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/*
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* Copyright (c) 2006 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 CMCEMEDIASDPCODEC_H
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#define CMCEMEDIASDPCODEC_H
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//  INCLUDES
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#include "mcesdpcodec.h"
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#include "mcecomcodec.h"
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const TInt KMceMaxPTValue = 127;
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const TInt KMceMaxPayloadTypes = 20;
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const TBool KMceMediaCodecUpdate = ETrue;
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const TBool KMceMediaCodecNoUpdate = EFalse;
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/**
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*  Class for encoding and decoding media lines and creating server streams
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*  
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*/
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class CMceMediaSdpCodec : public CMceSdpCodec
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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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        ~CMceMediaSdpCodec();
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    public: //from CMceSdpCodec
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        /**
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        * Encodes a media line. 
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        * @param aStream media stream
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        * @param aMediaLine media line
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        * @param aSdpDocument sdp document
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        * @leave system wide error
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        */ 
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        void EncodeMediaOfferL( CMceComMediaStream& aStream,
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                                CSdpMediaField& aMediaLine, 
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                                CSdpDocument& aSdpDocument );
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        /**
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        * Decodes the media answer.
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        * @param aStream media stream
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        * @param aSdpDocument sdp document
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        * @return warning if any 
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        * @leave system wide error
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        */
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        TMceSipWarningCode DecodeMediaAnswerL( CSdpMediaField& aMediaLine, 
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                                 CMceComMediaStream& aStream,
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                                 CSdpDocument& aSdpDocument );
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        /**
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        * Decodes media offer and creates media stream. The stream is appended
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        * into the media session, if aStream is NULL
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        * @param aMediaLine media line
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        * @param aStream stream added to session
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        * @param aSession media session
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        * @param aSdpDocument sdp document
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        * @param aStream stream to updated, if any
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        * @return warning if any 
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        * @leave system wide error
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        */
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        TMceSipWarningCode DecodeMediaOfferL( CSdpMediaField& aMediaLine,
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                                              CMceComMediaStream*& aStream,
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                                              CMceComSession& aSession,
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                                              CSdpDocument& aSdpDocument );
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        /**
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        * Decodes media update by updating media stream
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        * @param aMediaLine media line
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        * @param aStream stream to be updated
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        * @param aSdpDocument sdp document
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        * @return warning if any 
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        * @leave system wide error
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        */
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        TMceSipWarningCode DecodeMediaUpdateL( CSdpMediaField& aMediaLine, 
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                                               CMceComMediaStream& aStream,
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                                               CSdpDocument& aSdpDocument );
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        /**
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        * Creates a encoded media line based on the offer received earlier.
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        * @param aStream media stream
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        * @param aMediaLine media line
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        * @param aSdpDocument sdp document
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        * @leave system wide error
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        */
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        void EncodeMediaAnswerL( CMceComMediaStream& aStream,
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                                  CSdpMediaField& aMediaLine,
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                                  CSdpDocument& aSdpDocument );
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        /**
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        * Clean attributes
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        * @param aMediaLine media line
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        */
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        void CleanAttributes( CSdpMediaField& aMediaLine );
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        /**
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        * Prepares media line before offer/answer will be decoded
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        * @param aMediaLine media line
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        * @param aStream media stream
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        * @leave system wide error
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        */
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        void PrepareForDecodeL( CSdpMediaField& aMediaLine,
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                                CMceComMediaStream* aStream );
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    protected://abstract interface
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        /**
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        * Returns codecs
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        * @param aStream media stream
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        * @param return codecs
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        * @leave if stream type does not macth codecs
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        */
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        virtual const RPointerArray<CMceComCodec>& CodecsL( 
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                                        CMceComMediaStream& aStream ) const = 0;
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        /**
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        * Encodes rtpmap -attribute
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        * @param aCodec codec encoded to rtpmap
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        * @leave system wide error
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        */
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        virtual CSdpFmtAttributeField* EncodeRtpmapAttributeLC( 
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                                        CMceComCodec& aCodec ) const = 0;
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        /**
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        * Encodes media related attributes
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        * @param aCodec the codec
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        * @param aMediaLine media line
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        * @param aRtpmap rtpmap attribute
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        * @leave system wide error
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        */
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        virtual void EncodeMediaAttributesL( CMceComCodec& aCodec, 
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                                             CSdpMediaField& aMediaLine, 
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                                             CSdpFmtAttributeField& aRtpmap ) const = 0;
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        /**
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        * Decodes media related attributes
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        * @param aMediaLine media line
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        * @param aCodec the codec
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        * @leave system wide error
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        */
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		virtual void DecodeMediaAttributesL( CSdpMediaField& aMediaLine, 
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                                             CMceComCodec& aCodec,
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                                             CSdpFmtAttributeField& aRtpmap ) const = 0;
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        /**
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        * Creates media stream based on sdp type
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        * @param aType the sdp type sendrecv, sendonly or receive only
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        * @return media stream
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        * @leave system wide error
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        */
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        virtual CMceComMediaStream* CreateStreamLC( TInt aType ) const = 0;
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        /**
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        * Updates media based on received offer
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        * @param aStream media stream
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        * @param aDirection the direction 
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        * @leave system wide error
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        */
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        virtual void UpdateStreamL( CMceComMediaStream& aStream, TInt aDirection ) const = 0;
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        /**
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        * Creates codec based on rtpmap line
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        * @param aRtpmap rtpmap line
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        * @return codec or NULL, if not supported
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        * @leave system wide error
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        */
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        virtual CMceComCodec* CreateCodecLC( CSdpFmtAttributeField& aRtpmap ) const = 0;
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        /**
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        * Creates codec based on payload type
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        * @param aPayload payload
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        * @param aMediaLine media line
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        * @return codec or NULL, if not supported
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        * @leave system wide error
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        */
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        virtual CMceComCodec* CreateCodecLC( TUint aPayload, CSdpMediaField& aMediaLine ) const = 0;
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        /**
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        * Decodes session level media attributes
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        * @param aStream media stream
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        * @param aSdpDocument sdp document
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        * @return codec or NULL, if not supported
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        * @leave system wide error
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        */
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        virtual void DecodeSessionMediaAttributesL( CMceComMediaStream& aStream, 
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                                                    CSdpDocument& aSdpDocument ) const = 0;
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    protected:
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        /**
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        * validates sdp offer. Called before offer will be decoded
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        * @param aMediaLine media line
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        * @param aSdpDocument sdp document
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        * @return warning
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        */
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        virtual TMceSipWarningCode ValidateSdpL( CSdpMediaField& aMediaLine,
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                                                CSdpDocument& aSdpDocument );
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        /**
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        * Gets the type of session ( sendrecv, sendonly or receiveonly )
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        * @param aMediaLine media line
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        * @param aSessionAttributes all session attributes
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        * @return type
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        */
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        TInt Type( CSdpMediaField& aMediaLine,
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                    RPointerArray<CSdpAttributeField>& aSessionAttributes ) const;
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        /**
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        * Encodes direction attribute
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        * @param aStream media stream
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        * @param aMediaLine media line
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        * @param aSdpDocument sdp document
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        * @param aRole negotiation role
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        */
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        void EncodeDirectionL( CMceComMediaStream& aStream,
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                               CSdpMediaField& aMediaLine,
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                               CSdpDocument& aSdpDocument,
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                               TMceNegotiationRole aRole ) const;
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        /**
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        * Encodes preconditions
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        * @param aStream media stream
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        * @param aMedia media line
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        * @param aRole negotiation role
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        * @leave system wide error
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        */
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        void EncodePreconditionsL( CMceComMediaStream& aStream,
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                                   CSdpMediaField& aMediaLine,
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                                   TMceNegotiationRole aRole ) const;
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        /**
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        * Decodes preconditions
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        * @param aMedia media line
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        * @param aStream media stream
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        * @param aRole negotiation role
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        * @return warning if any 
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        * @leave system wide error
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        */
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        TMceSipWarningCode DecodePreconditionsL( CSdpMediaField& aMediaLine,
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                                   CMceComMediaStream& aStream,
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                                   TMceNegotiationRole aRole ) const;
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        /**
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        * Decodes rmtpmap lines in answer
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        * @param aMediaLine Media line
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        * @param aStream stream
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        * @param aRole role of negotiation
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        * @return number of lines decoded
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        */
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        TInt DecodeRtpmapLinesL( CSdpMediaField& aMediaLine,
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                                 CMceComMediaStream& aStream,
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                                 TMceNegotiationRole aRole ) const;
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        /**
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        * Decodes rmtpmap lines in offer, and adds codes to stream.
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        * @param aMediaLine Media line
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        * @param aStream stream
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        * @return number of lines decoded
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        */
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        TInt DecodeRtpmapLinesL( CSdpMediaField& aMediaLine,
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                                 CMceComMediaStream& aStream ) const;
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        /**
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        * Decodes static payloads if payload wasn't defined as rtpmap
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        * @param aMediaLine Media line
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        * @param aStream stream
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        * @param aPayloadTypes payload types as an array
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        * @param aRole role of negotiation
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        * @return number of lines decoded
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        */
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        TInt DecodeStaticPayloadsL( CSdpMediaField& aMediaLine,
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                                    CMceComMediaStream& aStream,
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                                    RArray<TUint>& aPayloadTypes, 
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                                    TMceNegotiationRole aRole ) const;
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        /**
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        * Decodes rtpmap line. 
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        * @param aRtpMaptLine rtpmap line
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        * @param aMediaLine media line
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        * @param aStream stream
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        * @param aFmtpValue
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        * @return decoded codec if codec was supported
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        */
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        CMceComCodec* DecodeRtpmapLineL( CSdpFmtAttributeField& aRtpMaptLine,
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                                         CSdpMediaField& aMediaLine,
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                                         CMceComMediaStream& aStream,
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                                         const TDesC8& aFmtpValue = KNullDesC8 ) const;
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        /**
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        * Decodes fmtp lines. 
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        * @pre codecs and rtpmaps are in sync 
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        * @param aMediaLine Media line
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        * @param aCodecs codecs
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        * @param aRole the role
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        */
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        void DecodeFmtpLinesL( CSdpMediaField& aMediaLine,
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                               CMceComCodec::TIterator& aCodecs,
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                               TMceNegotiationRole aRole ) const;
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   333
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        /**
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        * Creates fmtp attribute and appends it into media line
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        * @param aCodec the codec
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        * @param aMediaLine Media line
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        * @return None.
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        */
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        void EncodeFmtpAttributeL( CMceComCodec& aCodec,
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                                   CSdpMediaField& aMediaLine ) const;
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        /**
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        * Encodes secure session
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   346
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   347
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   348
        * @param aRole the role
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   349
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   350
        void EncodeSecureSessionL( CMceComMediaStream& aStream, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   351
                                   CSdpMediaField& aMediaLine,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   352
                                   TMceNegotiationRole aRole );
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   353
                                   
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   354
                                  
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   355
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   356
        * Decodes secure session
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   357
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   358
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   359
        * @param aRole the role
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   360
        * @param aUpdate is it update (role EMceRoleAnswerer )
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   361
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   362
        void DecodeSecureSessionL( CSdpMediaField& aMediaLine,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   363
                                  CMceComMediaStream& aStream, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   364
                                  TMceNegotiationRole aRole,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   365
                                  TBool aUpdate = KMceMediaCodecNoUpdate );
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   366
                                  
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   367
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   368
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   369
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   370
        * Decodes direction and 'old school' hold
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   371
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   372
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   373
        * @param aSdpDocument sdp document
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   374
        * @param aRole the role
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   375
        * @param aUpdate is it update 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   376
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   377
        void DecodeDirectionL( CSdpMediaField& aMediaLine,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   378
                                   CMceComMediaStream& aStream,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   379
                                   CSdpDocument& aSdpDocument,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   380
                                   TMceNegotiationRole aRole ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   381
                                  
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   382
                                  
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   383
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   384
        * Update direction and 'old school' hold
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   385
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   386
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   387
        * @param aSdpDocument sdp document
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   388
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   389
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   390
        void UpdateDirectionL( CSdpMediaField& aMediaLine, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   391
                                              CMceComMediaStream& aStream,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   392
                                              CSdpDocument& aSdpDocument) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   393
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   394
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   395
        * Creates fmtlist that can be used as media field fmt list -attribute
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   396
        * @param aCodecs codecs
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   397
        * @return fmtp list
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   398
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   399
        HBufC8* CreateFormatListL( CMceComCodec::TIterator& aCodecs ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   400
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   401
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   402
       /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   403
        * decodes the remote RTCP port according to RFC 3605
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   404
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   405
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   406
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   407
        void DecodeRemoteRtcpFieldL( CSdpMediaField& aMediaLine, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   408
                                     CMceComMediaStream& aStream ) const;  
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   409
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   410
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   411
        * encodes the remote RTCP port according to RFC 3605
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   412
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   413
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   414
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   415
        void EncodelocalRtcpAttrL( CSdpMediaField& aMediaLine, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   416
                                     CMceComMediaStream& aStream ) const; 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   417
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   418
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   419
        * Encodes media attributes client is willing to insert
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   420
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   421
        * @param aMediaLine media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   422
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   423
        void EncodeClientAttributesL( CMceComMediaStream& aStream,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   424
                                      CSdpMediaField& aMediaLine ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   425
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   426
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   427
        * Decodes media attributes to be sent to client
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   428
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   429
        * @param aStream media stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   430
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   431
        void DecodeClientAttributesL( CSdpMediaField& aMediaLine, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   432
                                      CMceComMediaStream& aStream ) const;  
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   433
                              
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   434
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   435
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   436
        * Decodes media line's format list to payload type array
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   437
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   438
        * @param aPayloadTypes payload types as an array
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   439
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   440
        void DecodeFormatListL( CSdpMediaField& aMedia, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   441
                                RArray<TUint>& aPayloadTypes ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   442
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   443
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   444
        * Decodes media line's format list to payload type array
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   445
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   446
        * @param aPayloadTypes payload types as an array
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   447
        * @return  system wide error
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   448
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   449
        TInt DecodeFormatList( CSdpMediaField& aMedia, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   450
                               RArray<TUint>& aPayloadTypes ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   451
                             
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   452
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   453
        * Finds codec based on payload type
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   454
        * @param aPayloadType payload
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   455
        * @param aStream stream containig codecs
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   456
        * @return codec
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   457
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   458
        CMceComCodec* FindCodec( TInt aPayloadType, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   459
                                 CMceComMediaStream& aStream ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   460
                             
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   461
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   462
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   463
        * Decodes payloads and static payloads if payload wasn't defined
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   464
        * as rtpmap. Additionally, codec sdp indexes are updated.
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   465
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   466
        * @param aStream stream
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   467
        * @param aRole role of negotiation
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   468
        * @return number of lines decoded
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   469
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   470
        TInt DecodePayloadsL( CSdpMediaField& aMediaLine,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   471
                              CMceComMediaStream& aStream,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   472
                              TMceNegotiationRole aRole ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   473
    
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   474
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   475
        * Updates streams codec sdp index values. Can be called after
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   476
        * dynamic payload types have been updated.
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   477
        * @param aStream stream containig codecs
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   478
        * @param aPayloadTypes list of payload types
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   479
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   480
        void UpdateSdpCodecIndexesL( CMceComMediaStream& aStream,
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   481
                                     RArray<TUint>& aPayloadTypes ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   482
    
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   483
    
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   484
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   485
        * Tries to find matching fmtp line for certain rtpmap line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   486
        * @param aMediaLine Media line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   487
        * @param aRtpMapFormatLine rtpmap format line
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   488
        * @return KNullDesC8 if fmtp line is not found
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   489
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   490
        TPtrC8 GetCorrespondingFmtpLineL( CSdpMediaField& aMediaLine, 
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   491
                                          CSdpFmtAttributeField& aRtpMapFormatLine ) const;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   492
    
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   493
    protected:
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   494
    
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   495
    
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   496
        /**
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   497
        * C++ Constructor
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   498
        * @param aMedia media
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   499
        */
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   500
        CMceMediaSdpCodec( RStringF aMedia );
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   501
        
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   502
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   503
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   504
    friend class UT_CMceMediaSdpCodec;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   505
    friend class UT_CMceMediaManager;       
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   506
    friend class UT_CMceSdpSession;
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   507
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   508
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   509
    };
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   510
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   511
#endif      // CMCEMEDIASDPCODEC_H   
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   512
            
1bce908db942 Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   513
// End of File