devsound/devsoundrefplugin/src/sounddevice/DevSoundUtility.h
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     1 // Copyright (c) 2001-2009 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 // File:		DevSoundUtility.h
       
    15 // Author:		Vasudevan Ramachandraiah
       
    16 // Date:		July 16, 2002
       
    17 // Class that provides API to list ECOM plugin implementation IDs
       
    18 // (c) Nokia Inc.
       
    19 // Revisions:
       
    20 // Date:			Author			Description
       
    21 // 
       
    22 //
       
    23 
       
    24 #ifndef __MMFDEVSOUNDUTILITY_H
       
    25 #define __MMFDEVSOUNDUTILITY_H
       
    26 
       
    27 #include <ecom/ecom.h>
       
    28 #include <badesca.h>
       
    29 
       
    30 #include "mmfutilities.h" // For TFourCC
       
    31 
       
    32 #define KFourCCLength 4
       
    33 
       
    34 class TMMFRawPackage
       
    35 /**
       
    36 *@internalTechnology
       
    37 */
       
    38 	{
       
    39 public:
       
    40 	inline TPtr8& Package();
       
    41 	inline const TPtr8& Package() const;
       
    42 protected:
       
    43 	TMMFRawPackage(TInt aDerivedSize);
       
    44 	inline void SetSize(TInt aDerivedSize);
       
    45 protected:
       
    46 	TPtr8 iThis;
       
    47 	};
       
    48 
       
    49 
       
    50 class TMMFToneFixedSequenceNames : public TMMFRawPackage
       
    51 /**
       
    52 *@internalTechnology
       
    53 */
       
    54 	{
       
    55 public:
       
    56 	inline TMMFToneFixedSequenceNames();
       
    57 public:
       
    58 	TInt iCount;
       
    59 	};
       
    60 
       
    61 
       
    62 class HMMFToneFixedSequenceNames : public TMMFToneFixedSequenceNames
       
    63 /**
       
    64 *@internalTechnology
       
    65 */
       
    66 	{
       
    67 public:
       
    68 	HMMFToneFixedSequenceNames();
       
    69 	HMMFToneFixedSequenceNames* AddNameL(const TDesC& aName);
       
    70 	};
       
    71 
       
    72 
       
    73 class CMMFDevSoundUtility : public CBase
       
    74 /**
       
    75 *internalTechnology
       
    76 */
       
    77 	{
       
    78 public:
       
    79 	// Destructor
       
    80 	~CMMFDevSoundUtility();
       
    81 	static CMMFDevSoundUtility* NewL();
       
    82 	static CMMFDevSoundUtility* NewLC();
       
    83 
       
    84 	void SeekUsingFourCCL(TUid aInterfaceUid, RImplInfoPtrArray& aPlugInArray, const TFourCC& aSrcDataType, const TFourCC& aDstDataType, const TDesC& aPreferredSupplier);
       
    85 	void SelectByPreference(RImplInfoPtrArray& aPlugInArray, const TDesC& aPreferredSupplier);
       
    86 	void SeekHwDevicePluginsL(RArray<TFourCC>& aSupportedDataTypes, TMMFState aState);
       
    87 
       
    88 #ifdef SYMBIAN_MULTIMEDIA_CODEC_API
       
    89 	void FindHwDeviceAdapterL(TUid aInterfaceUid, RImplInfoPtrArray& aPlugInArray);
       
    90 	void SeekCodecPluginsL(RArray<TFourCC>& aSupportedDataTypes, TMMFState aState, TBool aAppend);
       
    91 #endif // SYMBIAN_MULTIMEDIA_CODEC_API
       
    92 
       
    93 	void InitializeFixedSequenceL(CPtrC8Array** aFixedSequences);
       
    94 	TBool RecognizeSequence(const TDesC8& aData);
       
    95 	const TDesC& FixedSequenceName(TInt aSequenceNumber);
       
    96 
       
    97 private:
       
    98 	CMMFDevSoundUtility();
       
    99 	void ConstructL();
       
   100 	TBool IsDataTypeMatch(CImplementationInformation* hwDeviceResourceEntry,const TDesC8& fourCCPtrPCM16, TMMFState aState);
       
   101 
       
   102 private:
       
   103 	HMMFToneFixedSequenceNames* iFixedSequenceNames;
       
   104 	HBufC8* iInfo;
       
   105 	} ;
       
   106 
       
   107 #endif // __MMFDEVSOUNDUTILITY_H