1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __CHUNKPROCESSOR_H__

    17 

    18 #define __CHUNKPROCESSOR_H__

    19 /** 	@file

    20 	@internalTechnology */

    21 

    22 class MInputStream;

    23 class CMngPlayer;

    24 union TChunkId;

    25 

    26 class MChunkProcessor 

    27 	{

    28 public:

    29 	virtual TBool OfferChunkType(const TChunkId& aChunkId)=0;

    30 	virtual void Start(MInputStream& aInputStream, TRequestStatus& aRequest)=0;

    31 	virtual void Stop()=0;

    32 	virtual void Pause()=0;

    33 	virtual void Resume()=0;

    34 

    35 	virtual TInt AddSubProcessor(MChunkProcessor& aSubProcessor)=0;

    36 	};

    37 

    38 

    39 class CChunkProcessor: protected CActive, public MChunkProcessor 

    40 	{

    41 public:

    42 

    43 // from MChunkProcessor

    44 	void Stop();

    45 	void Pause();

    46 	void Resume();

    47 

    48 protected:

    49 	CChunkProcessor(CMngPlayer& aMngPlayer);

    50 

    51 	void NotifyCaller(TInt aErrCode);

    52 

    53 	virtual void DoRunL()=0;

    54 	void DoCancel();

    55 	TInt RunError(TInt aError);

    56 	void RunL();

    57 	

    58 	void RunAgain();

    59 

    60 protected:

    61 	MInputStream*		iInputStream;

    62 	TRequestStatus*		iCallerRequest;

    63 	MChunkProcessor*	iSubProcessor;

    64 	CMngPlayer&			iMngPlayer;	

    65 	TBool				iIsPaused;

    66 	TBool				iNeedRunAfterResume;

    67 	};

    68 

    69 #endif  // ndef __CHUNKPROCESSOR_H__