/*

* 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 CMCECOMVIDEOSTREAM_H

#define CMCECOMVIDEOSTREAM_H

#include <e32std.h>  		

#include "mcecommediastream.h"

// FORWARD DECLARATIONS

class CMceComVideoCodec;

/**

 * 

 *

 * @lib 

 */

class CMceComVideoStream: public CMceComMediaStream

	{

public: // Constructors and destructor

    /**

    * Constructor

    */

    static CMceComVideoStream* NewL();

    /**

    * Constructor

    */

    static CMceComVideoStream* NewLC();

    /**

    * Destructor.

    */

	~CMceComVideoStream();

public: // Functions

    /**

    * Adds codec to the stream.

    * @param aCodec codec to be added to the stream.

	*	     Ownership is transferred.

    */

	void AddCodecL( CMceComCodec* aCodec);

    /**

    * Removes codec from the stream.

    * @param aCodec codec to be added to the stream.

	*	     Ownership is transferred.

    */

    void RemoveCodecL( CMceComCodec* aCodec );

	/**

	* Return pointer to codec from the list of codecs.

	* aIndex index of codec to get.

	*/

	CMceComVideoCodec* CodecL( TInt aIndex ) const;

	/**

	* Returns number of codecs in the stream.

	*/

	TInt CodecCount() const;

    /**

    * Returns the available codecs to the session.

    * @return codecs available for the session.

    */

	const RPointerArray<CMceComVideoCodec>& Codecs() const;

public: // serialization

    /**

    * Internalizes flat data

    * @param aReadStream read stream

    */

    void InternalizeFlatL( RReadStream& aReadStream );

    /**

    * Externalizes flat data

    * @param aWriteStream write stream

    */

    void ExternalizeFlatL( RWriteStream& aWriteStream );

    /**

    * Internalizes

    * @param aReadStream read stream

    */

    void InternalizeL( MMceComSerializationContext& aSerCtx );

    /**

    * Externalizes

    * @param aWriteStream write stream

    */

    void ExternalizeL( MMceComSerializationContext& aSerCtx );

public://from CMceComMediaStream

    /**

    * Initializes 

    * @param aParent the parent

    */

    void InitializeL( CMceComSession& aParent );

    /**

    * Updates 

    * @param aStream new stream

    */

    void UpdateL( CMceComMediaStream& aStream );

    /**

    * Clones

    */

    CMceComMediaStream* CloneL();

    void ReorderCodecs();

protected: // Functions

    /**

    * Constructor

    */

	CMceComVideoStream();

    /**

    * second-phase constructor

    */

	void ConstructL();

    /**

     * second-phase copy constructor

     */

	void ConstructL( CMceComVideoStream& aStream );

    /**

    * Searches for codec matching with input codec instance or sdp name

    * @param aCodec the search term

    * @return matching codec or NULL if not found

    */

    CMceComCodec* FindCodecL( CMceComCodec& aCodec );

	/**

	* Find index of codec in the list of codecs.

	* aCodec codec to search for.

	*/

	TInt FindCodecFromList( CMceComCodec* aCodec) const;

	/**

	* Removes a codec from the list of codecs.

	* @param aIndex index of codec to be removed.

	*/

	void RemoveCodecFromListL( TInt aIndex );

	/**

	* Clears list of codecs and deletes each codec in it.

	*/

	void DestroyCodecs();

#ifdef MCE_COMMON_SERVER_SIDE

protected:

    /**

    * Synchronizes stream's codecs

    * @param aRoleAnswerer is answerer

    */

    void SynchronizeL( TBool aRoleAnswerer );

    /**

    * Update default codec to reflect current negotiation

    */

    void UpdateDefaultCodecL();

    /**

    * Prepares stream for offer/answer

    */

    void PrepareL();

    /**

    * Return mcc stream type

    * @return mcc stream type

    */

    TInt MccStreamType() const;

    /**

    * Return mcc link type

    * @return mcc link type

    */

    TInt MccLinkType() const;

    /**

    * Update default codecs of associated local streams to reflect

    * current negotiation

    */

    void UpdateDefaultCodecForAssociatedLocalL( CMceComCodec* aNewDefaultCodec );

#endif//MCE_COMMON_SERVER_SIDE	

protected: // Owned data

    /**

     * codecs

     */

	RPointerArray<CMceComVideoCodec> iCodecs;

#ifdef EUNIT_TEST

    friend class UT_CMceComVideoStream;

    friend class UT_CMceMediaSdpCodec;

    friend class UT_CMceVideoSdpCodec;

#endif

	};

#endif