1 /*

     2  * Copyright (c) 2009 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: Telephony Multimedia Service

    15  *

    16  */

    17 

    18 

    19 #ifndef 	EAACPLUSFRAMEPARSER_H

    20 #define 	EAACPLUSFRAMEPARSER_H

    21 

    22 // INCLUDES

    23 #include <e32base.h>

    24 #include "EAacPlusUtil.h"

    25 

    26 class CFrameTable;

    27 class CMMFBuffer;

    28 

    29 // CLASS DECLARATION

    30 

    31 /**

    32 *  This class implements utility functions to extract AAC frame

    33 *  information.

    34 *

    35 *  @lib MmfEAacPlusUtil.lib

    36 *  @since 3.2

    37 */

    38 class CEAacPlusFrameParser : public CBase

    39 	{

    40 	public:

    41 	

    42     class TEAacPlusParserConfig

    43         {

    44     public:

    45 		CEAacPlusUtil::TEAacPlusFrameLenConfig iFrameLenConfig; // config info needed by util for frame length.

    46         TInt    	iOutSamplingFrequency;		 // output sampling freq of decoder

    47       	TInt		iNumOfSamples;				 // samples per frame

    48       	CFrameTable* iFrameTable;				 // the frame table

    49         };

    50 

    51     public:  // Constructors and destructor

    52 

    53         /**

    54         * Two-phased constructor.

    55         */

    56         IMPORT_C static CEAacPlusFrameParser* NewL();

    57 

    58         /**

    59         * Destructor.

    60         */

    61         IMPORT_C virtual ~CEAacPlusFrameParser();

    62 

    63     public: // New functions

    64 

    65 		/**

    66         * Used to parse the aac frames and populate the seek table.

    67         * @since 3.2

    68         * @param	aBuf                 buffer of AAC data from start of aac content

    69         * @param	aBufLen              length of aBuf

    70         * @return   status

    71         */

    72         IMPORT_C TInt Parse(const CMMFBuffer& aSrc, TInt& aSrcUsed);

    73 

    74 		/**

    75         * Used to configure the utility with information needed to enable the apis.

    76         * This api can be used if GetAacFrameInfo is not used to initialize the utility.

    77         * @since 3.2

    78         * @param	aFormatType format type

    79         * @param	aSamplingFrequency sampling frequency

    80         * @return   status

    81         */

    82 		IMPORT_C TInt Config(TEAacPlusParserConfig& aParserConfig);

    83 		IMPORT_C TInt ReConfig();

    84 

    85     private:

    86 

    87         /**

    88         * C++ default constructor.

    89         */

    90         CEAacPlusFrameParser();

    91 

    92         /**

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

    94         */

    95         void ConstructL();

    96 

    97  	private:	// Data

    98  		CEAacPlusUtil* iAacUtil;

    99  		CFrameTable* iFrameTable;

   100 	

   101 		// local input buffer

   102         TUint8* iTmpBuf;

   103         const TUint8* iTmpBufPtr;

   104         TInt 	iTmpBufBytes;

   105         TInt	iBytesCopied;

   106         

   107         TBool   iUsingTmpBuf;

   108         

   109         TInt iPos;

   110 //		CEAacPlusUtil::TEAacPlusFormatType iFormatType;

   111 //		TInt iInSamplingFrequency;

   112 //		TInt iOutSamplingFrequency;

   113 //		TInt iNumOfSamples;

   114 		TEAacPlusParserConfig iParserConfig;

   115         

   116 	};

   117 

   118 #endif      // EAACPLUSFRAMEPARSER_H

   119 

   120 // End of File