1 /*

     2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  This file defines the AAC Play Controller Decoder class.

    15 *

    16 */

    17 

    18 

    19 #ifndef CAACPLAYCONTROLLERDECODER_H

    20 #define CAACPLAYCONTROLLERDECODER_H

    21 

    22 //  INCLUDES

    23 #include "AdvancedAudioDecoder.h"

    24 #include <EAacPlusUtil.h>

    25 

    26 // FORWARD DECLARATIONS

    27 class CMMFCodec;

    28 class CEAacPlusUtil;

    29 

    30 // CLASS DECLARATION

    31 /**

    32 *  This class defines the AAC play controller decoder.

    33 *

    34 *  @lib AACAudioPlayController.lib

    35 *  @since 3.0

    36 */

    37 class CAACAudioPlayControllerDecoder : public CAdvancedAudioDecoder

    38     {

    39 

    40 	public:  // Constructors and destructor

    41 

    42         /**

    43         * Two-phased constructor.

    44         */

    45         static CAACAudioPlayControllerDecoder* NewL();

    46 

    47         /**

    48         * Destructor.

    49         */

    50         virtual ~CAACAudioPlayControllerDecoder();

    51 

    52     public: // Functions from base classes

    53 

    54         /**

    55 		* From CAdvancedAudioDecoder

    56 	    * Check if the audio converter is hardware accelerated.

    57 	    * @since 3.0

    58 	    * @return ETrue if hardare accelerated, otherwise, EFalse.

    59 	    */

    60         TBool IsHwAccelerated();

    61 		TCodecProcessResult ProcessL(CMMFBuffer& aSrc, CMMFBuffer& aDst);

    62 		TInt CodecConfig(RArray<TInt>& aCodecConfigData);

    63 		TInt CodecCmd(TCodecCmd aCmd);

    64         

    65     private: // Functions from base classes

    66 		void ResetL();

    67 		

    68 	private:

    69         /**

    70         * C++ default constructor.

    71         */

    72         CAACAudioPlayControllerDecoder();

    73 

    74         /**

    75         * By default Symbian 2nd phase constructor is private.

    76         */

    77         void ConstructL();

    78 

    79 		// these are defined for us in hwdecoder implementation only

    80 		void InitCodecConfigs();

    81 		TInt SeekSync(TUint8* aBuf, TInt aBufLen);

    82 		TInt FrameLength(const TUint8* aBuf,TInt aBufLen,TInt& aFrameLength);

    83 		TInt SeekAdtsSync(TUint8* aBuf, TInt aBufLen);

    84 		TBool IsValidAdtsFrame(const TUint8* aPtr, TInt aBufLen);

    85 

    86     private: // Data

    87         

    88         CEAacPlusUtil*  iAacUtil;

    89         CEAacPlusUtil::TEAacPlusFormatType iFormatType;

    90 		CEAacPlusUtil::TEAacPlusFrameLenConfig iFrameLenConfig;

    91 	};

    92 

    93 

    94 #endif		// CAACPLAYCONTROLLERDECODER_H

    95