1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/mmhais/refacladapt/src/shared/audiostreamadaptation.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,142 @@
     1.4 +// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#ifndef AUDIOSTREAMADAPTATION_H
    1.20 +#define AUDIOSTREAMADAPTATION_H
    1.21 +
    1.22 +#include <e32base.h>
    1.23 +#include <ecom/ecom.h>
    1.24 +#include <badesca.h>
    1.25 +#include <a3f/a3fbase.h>
    1.26 +
    1.27 +/**
    1.28 +@publishedAll
    1.29 +@released
    1.30 +
    1.31 +Implementation of the Audio Component Version
    1.32 +
    1.33 +*/
    1.34 +
    1.35 +class TAudioComponentInfo
    1.36 +	{
    1.37 +	TInt iVersion;
    1.38 +	};
    1.39 +
    1.40 +/**
    1.41 +@publishedAll
    1.42 +@released
    1.43 +
    1.44 +Implementation of the Stream Adaptation
    1.45 +
    1.46 +*/
    1.47 +
    1.48 +class MAudioStreamAdaptationObserver;
    1.49 +class CFourCCConvertor;
    1.50 +class MLogicalChain;
    1.51 +class MAudioContext;
    1.52 +
    1.53 +const TUid KAudioComponentManagerUid = {0x10283462};
    1.54 +
    1.55 +// Messages flags
    1.56 +const TInt KServerStopping = 0x01;
    1.57 +const TInt KPreemptionRequest = 0x02;
    1.58 +
    1.59 +/**
    1.60 +@publishedAll
    1.61 +@released
    1.62 +
    1.63 +This is the interface to AudioStreamAdaptation.
    1.64 +This is represent the stream loaded when the MMRC server 
    1.65 +selects the adaptation.
    1.66 +
    1.67 +This functionality includes audio playback and recording using different formats
    1.68 +CAudioStreamAdaptation provides the access point for clients to Adaptation Layer.
    1.69 +It is responsible for initializing connections to various subsystems
    1.70 +in audio adaptation. These include setting up and managing connection 
    1.71 +to the low level audio adaptation API implementations. The connections are then made
    1.72 +available .
    1.73 +*/
    1.74 +class CAudioStreamAdaptation : public CBase
    1.75 +	{
    1.76 +
    1.77 +public:
    1.78 +
    1.79 +	/**
    1.80 +	Constructs, and returns a pointer to, a new CAudioComponentManager object.
    1.81 +
    1.82 +	@return A pointer to the CAudioComponentManager instance.
    1.83 +	*/
    1.84 +	static CAudioStreamAdaptation* NewL(TUid aType);
    1.85 +
    1.86 +	/**
    1.87 +	Destructor.
    1.88 +
    1.89 +	Deletes all objects and releases all resource owned by this instance.
    1.90 +	*/
    1.91 +	virtual ~CAudioStreamAdaptation();
    1.92 +
    1.93 +
    1.94 +	/**
    1.95 +	Returns if a message was passed through the adaptation.
    1.96 +	
    1.97 +	@param MLogicalChain
    1.98 +		Logical Current Chain
    1.99 +	@param MLogicalChain
   1.100 +		Desired Chain after message
   1.101 +	@return An error code indicating if the function call was successful. KErrNone on success, otherwise
   1.102 +		another of the system-wide error codes.
   1.103 +	*/
   1.104 +
   1.105 +	virtual TInt Message(MLogicalChain& aCurrentChain, MLogicalChain& aDesiredChain, MAudioContext& aContext, TInt aFlags) = 0;
   1.106 +
   1.107 +	/**
   1.108 +	Returns if a Audio Stream Observer was Registered.
   1.109 +	
   1.110 +	@param MAudioStreamAdaptationObserver
   1.111 +		Observer object witch will be registered
   1.112 +	@return An error code indicating if the function call was successful. KErrNone on success, otherwise
   1.113 +		another of the system-wide error codes.
   1.114 +	*/
   1.115 +
   1.116 +	virtual TInt RegisterAudioStreamObserver(MAudioStreamAdaptationObserver& aObserver) = 0 ;
   1.117 +
   1.118 +	/**
   1.119 +	Returns if a Audio Stream Observer was UnRegistered.
   1.120 +	
   1.121 +	@param MAudioStreamAdaptationObserver
   1.122 +		Observer object witch will be unregistered
   1.123 +	*/
   1.124 +
   1.125 +	virtual void UnregisterAudioStreamObserver(MAudioStreamAdaptationObserver& aObserver) = 0;
   1.126 +
   1.127 +	virtual void UnregisterAllAudioStreamObserver() = 0;
   1.128 +	
   1.129 +	virtual void SetFourCC(const CFourCCConvertor& aFourCCConvertor) = 0;
   1.130 +	
   1.131 +	
   1.132 +private:
   1.133 +
   1.134 +	/**	iDtor_ID_Key Instance identifier key. When instance	of an
   1.135 +	*	implementation is created by ECOM framework, the
   1.136 +	*	framework will assign UID for it. The UID is used in
   1.137 +	*	destructor to notify framework that	this instance is
   1.138 +	*	being destroyed	and	resources can be released.
   1.139 +	*/
   1.140 +	TUid iDtor_ID_Key;
   1.141 +	};
   1.142 +
   1.143 +#include "audiostreamadaptation.inl"
   1.144 +
   1.145 +#endif // C_AUDIOCOMPONENTMANAGER_H