/*

* Copyright (c) 2005 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:    

*

*/

#ifndef CMCECOMAUDIOCODEC_H

#define CMCECOMAUDIOCODEC_H

//  INCLUDES

#include "mcecomcodec.h"

#ifdef MCE_COMMON_SERVER_SIDE

class CMceMediaManager;

class CMceComAudioStream;

#endif//MCE_COMMON_SERVER_SIDE

// FUNCTION PROTOTYPES

// CLASS DECLARATION

/**

*  Container class for the codec information.

*

*  @lib 

*  @since

*/

class CMceComAudioCodec : public CMceComCodec

    {

public:  // Constructors and destructor

    /**

    * Two-phased constructor.

    * @param aSdpName sdp name

    */

    static CMceComAudioCodec* NewL( TBuf8<KMceMaxSdpNameLength> aSdpName );

    /**

    * Two-phased constructor.

    * @param aSdpName sdp name

    */

    static CMceComAudioCodec* NewLC( TBuf8<KMceMaxSdpNameLength> aSdpName );

    /**

    * Destructor.

    */

    ~CMceComAudioCodec();

public: // from CMceComCodec

    /**

    * Internalizes flat data

    * @param aReadStream read stream

    */

    void InternalizeFlatL( RReadStream& aReadStream );

    /**

    * Externalizes flat data

    * @param aWriteStream write stream

    */

    void ExternalizeFlatL( RWriteStream& aWriteStream );

    /**

    * Updates this object

    * @param aUpdate object updates this

    */

    void UpdateL( CMceComCodec& aCodec );

public: //new functions 

    /**

    * Clones

    */

    virtual CMceComAudioCodec* CloneL();

    /**

    * Factory

    * @return factory

    */

    static TMceComAudioCodecFactory Factory();

    static TInt CompareSdpIndex( const CMceComAudioCodec& aIndex1, 

                                 const CMceComAudioCodec& aIndex2 );

    /**

    * Sets the sampling frequency.

    * @param aSamplingFreq, Sampling frequency to be used

    * @return KErrNotSupported if codec doesn't support sampling frequency issued; otherwise KErrNone.

    */

    virtual TInt SetSamplingFreq( TUint aSamplingFreq );

    /**

    * Sets the packetization rate. 

    * @param aPTime, Packetization rate, must be multiple of audio frame size.

    * @return KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone.

    */

    virtual TInt SetPTime( TUint aPTime );

    /**

    * Sets the maximum packetization rate.

    * @param aMaxPTime, maximum allowed packetization rate, must be multiple of audio frame size.

    * @return KErrNotSupported if codec doesn't support packetrate value issued; otherwise KErrNone.

    */

    virtual TInt SetMaxPTime( TUint aMaxPTime );

#ifdef MCE_COMMON_SERVER_SIDE

    /**

    * Assigns mcc codec

    * @param aMccCodec mcc codec

    * @return assigned codecs

    */

    CMceComCodec& operator=( CMccCodecInformation& aMccCodec );

    /**

    * Decodes to mcc codec

    * @param aMccCodec mcc codec

    */

    void DoMccDecodeL( CMccCodecInformation& aMccCodec );

    /**

    * Encodes from mcc codec

    * @param aMccCodec mcc codec

    * @param aStream stream

    */

    void DoMccEncodeL( CMccCodecInformation& aMccCodec,

                       CMceSrvStream& aStream );

    /**

    * Validates codec values based on mcc codec

    * @param aMccCodec mcc codec

    * @param aStream stream

    * @param aRole role

    */

    CMceComCodec* DoMccValidateL( CMccCodecInformation& aMccCodec,

                                  CMceSrvStream& aStream,

                                  TMceNegotiationRole aRole );

    /**

    * Adjust codec values based on mcc codec

    * @param aMccCodec mcc codec

    * @param aStream stream

    */

    void DoMccAdjustL( CMccCodecInformation& aMccCodec, 

                               CMceSrvStream& aStream );

    /**

    * Checks, if signalling is required

    * @param aStream stream

    * @param aMccCurentCodec current mcc codec

    * @param aMccUpdateCodec to be used mcc codec

    */

    TInt DoMccRequireSignalling( 

                                const CMceSrvStream& aStream,

                                const CMccCodecInformation& aMccCurentCodec, 

                                const CMccCodecInformation& aMccUpdateCodec ) const;

    /**

    * Creates server stream(s) for this codec

    * @param aCodecIndex

    * @param aStreams stream is added to the array

    * @param aAudio

    * @param aManager

    */

    virtual void DoDecodeAudioL( TInt aCodecIndex,

                                 RPointerArray<CMceSrvStream>& aStreams,

                                 CMceComAudioStream& aAudio,

                                 CMceMediaManager& aManager );

protected: // from CMceComCodec

    /**

    * Set default fmtp line

    */                                    

    void DoSetDefaultFmtpAttributeL();    

protected:

    void DoMccEncodeComfortNoiseL( CMccCodecInformation& aMccCodec,

                                   CMceSrvStream& aStream );

    void DoMccEncodeRedundancyL( CMccCodecInformation& aMccCodec,

                                 CMceSrvStream& aStream );

    void UpdateSendCodec( TInt& aCodecIndex, 

                          CMceComAudioStream& aAudio, 

                          CMceComAudioCodec& aCodec );

#endif//MCE_COMMON_SERVER_SIDE

protected:

    /**

    * C++ default constructor.

    */

    CMceComAudioCodec();

     /**

     * second-phase copy constructor

     */

	void ConstructL( CMceComAudioCodec& aCodec );

    /**

     * second-phase copy constructor

     */

	void ConstructL( TBuf8<KMceMaxSdpNameLength> aSdpName );

public:  // Owned serialized Data

    /**

    * Enables or disables VAD

    */

    TBool iEnableVAD;

	/**

    * Sampling frequency used with codec

    */

	TUint iSamplingFreq;

	/**

    * Stream's packet time

    */

	TUint iPTime;

	/**

    * Stream's max packet time

    */

	TUint iMaxPTime;

	/**

	* Payload type of associated red codec

	*/ 

	TUint8 iRedPayloadType;

	/**

	* Redundancy level

	*/

	TUint iRedCount;

	/**

	* Comfort noise

	*/

	TBool iComfortNoiseEnabled;

private:    // Friend classes

    #ifdef TEST_EUNIT

        friend class UT_CMceComAudioCodec;

    #endif

    };

#endif

// End of File