Symaptic: os/mm/devsound/devsoundrefplugin/src/plugin/audio/Gsm610/GSM610.H@bde4ae8d615e

     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 __GSM610_H__

    17 #define __GSM610_H__

    19 #include <mmf/server/mmfswcodecwrapper.h>

    21 // Standard EPOC32 includes required by this header file

    22 #include <e32base.h>

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

    24 #include <e32std.h>

    27 #ifdef EABI

    28 const TUint KNumFramesInABuffer  = 50;

    29 #else

    30 const TUint KNumFramesInABuffer  = 6;

    31 #endif

    32 const TInt  KGsmFrameSize = 65;

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

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

    35 const TInt  KPcmDataForGsmFrame = 640;

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

    38 /**

    39 *

    40 *class CMmfGsmToPcm16HwDevice

    41 *

    42 */

    43 class CMmfGsm610ToPcm16HwDevice : public CMMFSwCodecWrapper

    44 	{

    45 public:

    46 	static  CMmfGsm610ToPcm16HwDevice* NewL();

    47 	virtual CMMFSwCodec& Codec();

    48 	~CMmfGsm610ToPcm16HwDevice();

    49 private:

    50 	void ConstructL();

    51 	};

    53 /**

    54 *

    55 * CMmfPcmHwDevicePcm16ToGsm610

    56 *

    57 */

    58 class CMmfPcm16ToGsm610HwDevice : public CMMFSwCodecWrapper

    59 	{

    60 public:

    61 	static  CMmfPcm16ToGsm610HwDevice* NewL();

    62 	virtual CMMFSwCodec& Codec();

    63 	~CMmfPcm16ToGsm610HwDevice();

    64 private:

    65 	void ConstructL();

    66 	};

    68 /**

    69 *

    70 * class CMMFGsm610ToPcm16Codec coverts Gsm610 to PCM16

    71 *

    72 */

    73 class CGSM610FR_Decoder;

    75 class CMMFGsm610ToPcm16Codec : public CMMFSwCodec

    76 	{

    77 public:

    78 	CMMFGsm610ToPcm16Codec();

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

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

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

    82 	static  CMMFGsm610ToPcm16Codec* NewL();

    83 	void ConstructL();

    84 	~CMMFGsm610ToPcm16Codec();

    85 private:

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

    87 	TInt  NumBuffersToProcess( const CMMFDataBuffer& aSrc );

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

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

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

    91 	CMMFGsm610ToPcm16Codec( const CMMFGsm610ToPcm16Codec& );

    92 private:

    93 	CGSM610FR_Decoder* iGsmDecoder;

    94 	};

    96 /**

    97 *

    98 * class CMMFPcm16ToGsm610Codec coverts PCM16 to GSM610

    99 *

   100 */

   101 class CGSM610FR_Encoder;

   102 class CMMFPcm16ToGsm610Codec : public CMMFSwCodec

   103 	{

   104 public:

   105 	CMMFPcm16ToGsm610Codec();

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

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

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

   109 	static  CMMFPcm16ToGsm610Codec* NewL();

   110 	~CMMFPcm16ToGsm610Codec();

   111 	void ConstructL();

   112 private:

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

   114 	TInt NumBuffersToProcess( const CMMFDataBuffer& aSrc );

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

   117 	// do not supply implementations

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

   119 	CMMFPcm16ToGsm610Codec( const CMMFPcm16ToGsm610Codec &);

   120 private:

   121 	CGSM610FR_Encoder* iGsmEncoder;

   122 	};

   124 /**

   125 *

   126 * class TMmfAudioAudioCodecPanics provides a name space for audio codec

   127 * panics

   128 *

   129 **/

   130 class TMmfGsmCodecPanicsNameSpace

   131 	{

   132 public:

   133 	/*

   134 	A list of panic codes for Codecs

   135 	@internalTechnology

   136 	EBadArgument indicates a bad argument

   137 	EBadState indicates a state viaolation

   138 	EBadInvariant indicates an invariant violation

   139 	EPostConditionViolation indicates a post condition violation

   140 		*/

   141 	enum TMmfGsmCodecPanics

   142 		{

   143 		EBadArgument,

   144 		EBadState,

   145 		EBadInvariant,

   146 		EBadReset,

   147 		EPostConditionViolation

   148 		};

   149 public:

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

   151 	};

   153 /**

   154 *

   155 * Panic

   156 * @argument aPanic is the panic code for the codec

   157 *

   158 */

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

   160 	{

   161 	_LIT(KGsmCodecPanicCategory, "GsmCodec");

   162 	User::Panic(KGsmCodecPanicCategory, aPanic);

   163 	}

   165 /**

   166 *

   167 * ProcessPostCondition

   168 * @param aResult

   169 * @result TBool Etrue if the post condition is satisfied

   170 *

   171 **/

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

   173 	{

   174      TBool status = ETrue;

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

   176 		 {

   177 		 status = EFalse;

   178 		 }

   179 	 return status;

   180 	}

   181 #endif  //__GSM610_H__

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--