Symaptic: os/mm/devsound/sounddevbt/src/Plugin/HwDevice/Audio/Gsm610/BtGsm610.h@260cb5ec6c19

     1 // Copyright (c) 2002-2009 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 //

    16 #ifndef __BTGSM610_H__

    17 #define __BTGSM610_H__

    19 #include <mmfbtswcodecwrapper.h>

    21 // Standard EPOC32 includes required by this header file

    22 #include <e32base.h>

    23 #include <mmf/server/mmfdatabuffer.h>

    24 #include <e32std.h>

    26 const TUint KNumFramesInABuffer  = 50;

    27 const TInt  KGsmFrameSize = 65;

    28 const TUint	KGsmEncodedFrameSize = KNumFramesInABuffer * KGsmFrameSize ;   //50 * 65 encoded frames

    29 const TUint	KPcmEncodedFrameSize = KNumFramesInABuffer * 320;  // 50 times 160*2

    30 const TInt  KPcmDataForGsmFrame = 640;

    31 const TUint	KPcmInputFrameSize   = KPcmEncodedFrameSize*2;	// cache 2 frames

    33 /**

    34 *

    35 *class CMmfGsmToPcm16HwDevice

    36 *

    37 */

    38 class CMmfGsm610ToPcm16HwDevice : public CMMFSwCodecWrapper

    39 	{

    40 public:

    41 	static  CMmfGsm610ToPcm16HwDevice* NewL();

    42 	virtual CMMFSwCodec& Codec();

    43 	~CMmfGsm610ToPcm16HwDevice();

    44 private:

    45 	void ConstructL();

    46 	};

    48 /**

    49 *

    50 * CMmfPcmHwDevicePcm16ToGsm610

    51 *

    52 */

    53 class CMmfPcm16ToGsm610HwDevice : public CMMFSwCodecWrapper

    54 	{

    55 public:

    56 	static  CMmfPcm16ToGsm610HwDevice* NewL();

    57 	virtual CMMFSwCodec& Codec();

    58 	~CMmfPcm16ToGsm610HwDevice();

    59 private:

    60 	void ConstructL();

    61 	};

    63 /**

    64 *

    65 * class CMMFGsm610ToPcm16Codec coverts Gsm610 to PCM16

    66 *

    67 */

    68 class CGSM610FR_Decoder;

    70 class CMMFGsm610ToPcm16Codec : public CMMFSwCodec

    71 	{

    72 public:

    73 	CMMFGsm610ToPcm16Codec();

    74 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDest);

    75 	virtual TUint SourceBufferSize() {return KGsmEncodedFrameSize;};

    76 	virtual TUint SinkBufferSize() {return KPcmInputFrameSize;};

    77 	static  CMMFGsm610ToPcm16Codec* NewL();

    78 	void ConstructL();

    79 	~CMMFGsm610ToPcm16Codec();

    80 private:

    81 	TBool CheckInputBuffers( CMMFDataBuffer& aSrc, CMMFDataBuffer& aDest );

    82 	TInt  NumBuffersToProcess( const CMMFDataBuffer& aSrc );

    83 	TBool ProcessPostCondition( const CMMFSwCodec::TCodecProcessResult& result );

    84 	// do not provide an implmentation for these two methods

    85 	const CMMFGsm610ToPcm16Codec& operator=( const CMMFGsm610ToPcm16Codec& );

    86 	CMMFGsm610ToPcm16Codec( const CMMFGsm610ToPcm16Codec& );

    87 private:

    88 	CGSM610FR_Decoder* iGsmDecoder;

    89 	};

    91 /**

    92 *

    93 * class CMMFPcm16ToGsm610Codec coverts PCM16 to GSM610

    94 *

    95 */

    96 class CGSM610FR_Encoder;

    97 class CMMFPcm16ToGsm610Codec : public CMMFSwCodec

    98 	{

    99 public:

   100 	CMMFPcm16ToGsm610Codec();

   101 	virtual TCodecProcessResult ProcessL(const CMMFBuffer& aSrc, CMMFBuffer& aDest);

   102 	virtual TUint SourceBufferSize() {return KPcmInputFrameSize;};

   103 	virtual TUint SinkBufferSize() {return  KGsmEncodedFrameSize;};

   104 	static  CMMFPcm16ToGsm610Codec* NewL();

   105 	~CMMFPcm16ToGsm610Codec();

   106 	void ConstructL();

   107 private:

   108     TBool CheckInputBuffers( CMMFDataBuffer& aSrc, CMMFDataBuffer& aDest );

   109 	TInt NumBuffersToProcess( const CMMFDataBuffer& aSrc );

   110 	inline TBool ProcessPostCondition( const CMMFSwCodec::TCodecProcessResult& result );

   112 	// do not supply implementations

   113 	const CMMFPcm16ToGsm610Codec& operator=( const CMMFPcm16ToGsm610Codec& );

   114 	CMMFPcm16ToGsm610Codec( const CMMFPcm16ToGsm610Codec &);

   115 private:

   116 	CGSM610FR_Encoder* iGsmEncoder;

   117 	};

   119 /**

   120 *

   121 * class TMmfAudioAudioCodecPanics provides a name space for audio codec

   122 * panics

   123 *

   124 **/

   125 class TMmfGsmCodecPanicsNameSpace

   126 	{

   127 public:

   128 	/*

   129 	A list of panic codes for Codecs

   130 	@internalTechnology

   131 	EBadArgument indicates a bad argument

   132 	EBadState indicates a state viaolation

   133 	EBadInvariant indicates an invariant violation

   134 	EPostConditionViolation indicates a post condition violation

   135 		*/

   136 	enum TMmfGsmCodecPanics

   137 		{

   138 		EBadArgument,

   139 		EBadState,

   140 		EBadInvariant,

   141 		EBadReset,

   142 		EPostConditionViolation

   143 		};

   144 public:

   145 	inline static void Panic(const TMmfGsmCodecPanicsNameSpace::TMmfGsmCodecPanics aPanic);

   146 	};

   148 /**

   149 *

   150 * Panic

   151 * @param aPanic is the panic code for the codec

   152 *

   153 */

   154 inline void TMmfGsmCodecPanicsNameSpace::Panic(const TMmfGsmCodecPanicsNameSpace::TMmfGsmCodecPanics aPanic)

   155 	{

   156 	_LIT(KGsmCodecPanicCategory, "GsmCodec");

   157 	User::Panic(KGsmCodecPanicCategory, aPanic);

   158 	}

   160 /**

   161 *

   162 * ProcessPostCondition

   163 * @param aResult

   164 * @return TBool Etrue if the post condition is satisfied

   165 *

   166 **/

   167 inline TBool CMMFPcm16ToGsm610Codec::ProcessPostCondition( const CMMFSwCodec::TCodecProcessResult& aResult )

   168 	{

   169      TBool status = ETrue;

   170 	 if( (aResult.iSrcBytesProcessed / KPcmDataForGsmFrame ) != (aResult.iDstBytesAdded / KGsmFrameSize  ) )

   171 		 {

   172 		 status = EFalse;

   173 		 }

   174 	 return status;

   175 	}

   176 #endif  //__BTGSM610_H__

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--