diff -r e71858845f73 -r e1758cbb96ac audiostubs/devsoundextensions_stubs/mmfdevsoundadaptation_stub/src/DevSoundUtility.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/audiostubs/devsoundextensions_stubs/mmfdevsoundadaptation_stub/src/DevSoundUtility.h Mon Oct 04 00:04:35 2010 +0300 @@ -0,0 +1,288 @@ +/* +* Copyright (c) 2002-2004 Nokia Corporation and/or its subsidiary(-ies). +* All rights reserved. +* This component and the accompanying materials are made available +* under the terms of "Eclipse Public License v1.0" +* which accompanies this distribution, and is available +* at the URL "http://www.eclipse.org/legal/epl-v10.html". +* +* Initial Contributors: +* Nokia Corporation - initial contribution. +* +* Contributors: +* +* Description: Audio Stubs - Class that provides API to list ECOM plugin implementation IDs +* +*/ + + + +#ifndef MMFDEVSOUNDUTILITY_H +#define MMFDEVSOUNDUTILITY_H + +// INCLUDES + +#include +#include + +#include "mmfutilities.h" // For TFourCC + +#define KFOURCCLENGTH 4 + +// CLASS DECLARATION + +/** +* Utility class. +* +* @lib MmfDevSoundAdaptation.lib +* @since S60 3.0 +*/ +class TMMFRawPackage + { + public: + + /** + * Returns a descriptor reference. + * @since S60 3.0 + * @return TPtr8& A descriptor reference + */ + inline TPtr8& Package(); + + /** + * Returns a constant descriptor reference. + * @since S60 3.0 + * @return TPtr8& A constant descriptor reference + */ + inline const TPtr8& Package() const; + + protected: + + /** + * Constructor. + * @since S60 3.0 + * @param TInt aDerivedSize Size of the descriptor. + */ + TMMFRawPackage(TInt aDerivedSize); + + /** + * Sets the size of the descriptor. + * @since S60 3.0 + * @param TInt aDerivedSize New descriptor size. + * @return void + */ + inline void SetSize(TInt aDerivedSize); + + protected: + TPtr8 iThis; + }; + +// CLASS DECLARATION + +/** +* Utlilty class used for Fixed Sequences. +* +* @lib MmfDevSoundAdaptation.lib +* @since S60 3.0 +*/ +class TMMFToneFixedSequenceNames : public TMMFRawPackage + { + public: + + /** + * Constructor. + * @since S60 3.0 + */ + inline TMMFToneFixedSequenceNames(); + + public: + TInt iCount; + }; + +// CLASS DECLARATION + +/** +* Utlilty class used for Fixed Sequences. +* +* @lib MmfDevSoundAdaptation.lib +* @since S60 3.0 +*/ +class HMMFToneFixedSequenceNames : public TMMFToneFixedSequenceNames + { + public: + + /** + * Constructor. + * @since S60 3.0 + */ + HMMFToneFixedSequenceNames(); + + /** + * Adds name to this object. + * @since S60 3.0 + * @param const TDesC& aName A descriptor containing name to be added. + * @return HMMFToneFixedSequenceNames* A pointer to this object. + */ + HMMFToneFixedSequenceNames* AddNameL(const TDesC& aName); + }; + + +// CLASS DECLARATION + +/** +* Utility class.used by DevSound. +* +* @lib MmfDevSoundAdaptation.lib +* @since S60 3.0 +*/ +class CMMFDevSoundUtility : public CBase + { + public: // Constructors and destructor + + /** + * Constructs, and returns a pointer to, a new CMMFDevSound object. + * Leaves on failure. + * @return CMMFDevSoundUtility* A pointer to newly created utlitly object. + */ + static CMMFDevSoundUtility* NewL(); + + /** + * Constructs, leaves object on the cleanup stack, and returns a pointer + * to, a new CMMFDevSound object. + * Leaves on failure. + * @return CMMFDevSoundUtility* A pointer to newly created utlitly object. + */ + static CMMFDevSoundUtility* NewLC(); + + /** + * Destructor. + */ + ~CMMFDevSoundUtility(); + + public: // New functions + + /** + * Finds the ECom plugins based on FourCC. + * @since S60 3.0 + * @param TUid aInterfaceUid The interface Uid where to look for the plugin. + * @param RImplInfoPtrArray& aPlugInArray The array of ECom plugins Uids + * that will be filled in by this function. + * @param const TFourCC& aSrcDataType The source data type. + * @param const TFourCC& aDstDataType The destination data type. + * @return void + */ + void SeekUsingFourCCLC(TUid aInterfaceUid, + RImplInfoPtrArray& aPlugInArray, + const TFourCC& aSrcDataType, + const TFourCC& aDstDataType, + const TDesC& aPreferredSupplier); + + /** + * local function to disable items which do not match the preferred + * supplier. Note that at least one enabled item is returned (if there + * was an enabled item to begin with) which may not match the preferred + * supplier. + * @since S60 3.0 + * @param RImplInfoPtrArray& aPlugInArray An array containing the list of + * ECom plugin Uids. + * @param const TDesC &aPreferredSupplier Additional resolution criteria + * when searching for ECom plugin. If this is provided, the list + * of matching plugins will be further searched for the latest + * version of a plugin supplied by supplier named. Note that the + * display name field is parsed for a match. + * @return void + */ + void SelectByPreference(RImplInfoPtrArray& aPlugInArray, const TDesC& aPreferredSupplier); + + /* + * This method looks for hwDevicePlugins that support the state given in + * aState which must be either EMMFStatePlaying or EMMFStateRecording for + * each HwDevice plugin found the datatype as indicated by its FourCC + * code from the default_data field in the resource file is added to the + * array of aSupportedDataTypes + * Leaves on failure. + * @since S60 3.0 + * @param RArray& aSupportedDataTypes An array of fourCC codes + * that has a fourCC code added to for each hardware device found. + * @param TMMFState aState EMMFStatePlaying if seeking HwDevice plugins + * that support play and EMMFStateRecording if seeking HwDevice + * plugins that support record * + * @return void + */ + void SeekHwDevicePluginsL(RArray& aSupportedDataTypes, TMMFState aState); + + /** + * Initializes the names of Fixed Sequences. + * Leaves on failure. + * @since S60 3.0 + * @param CPtrC8Array** aFixedSequences A pointer to a pointer reference + * which will be populated with Fixed Sequence names when this + * funtion returns. + * @return void + */ + void InitializeFixedSequenceL(CPtrC8Array** aFixedSequences); + + /** + * Recognizes tone sequence. + * @since S60 3.0 + * @param const TDesC8& aData A reference to descriptor containing tone + * sequence. + * @return ETrue of the sequence starts with 'SQNC' else EFalse. + */ + TBool RecognizeSequence(const TDesC8& aData); + + /** + * Returns a descriptor reference containing name of the fixed sequence. + * @since S60 3.0 + * @param TInt aSequenceNumber Sequence number. + * @return A constant reference to descriptor. + */ + const TDesC& FixedSequenceName(TInt aSequenceNumber); + + private: + + /* + * This method takes a given resource entry from a hardware device and + * determines whether the hwdevice plugin is a data type match for + * playing or recording depending on the setting of aState. The method + * matchs the default_data field from the hw device resource entry + * matching it with the aHwMatchFourCC code. + * @since S60 3.0 + * @param CImplementationInformation aHwDeviceResourceEntry The hw device + * resource entry that is to be checked whether it can be used to + * play or record + * @param TDesC8& aHwMatchFourCC The data type FourCC code to match to + * that the hardware device that must convert to for playing and + * convert from for recording - for the reference DevSound this + * is always ' P16' ie pcm16 + * @param TMMFState aState EMMFStatePlaying for playing and + * EMMFStateRecording for recording + * @return ETrue if a match for play or record else EFalse. + */ + TBool IsDataTypeMatch(CImplementationInformation* hwDeviceResourceEntry, + const TDesC8& fourCCPtrPCM16, + TMMFState aState); + + + private: + + /** + * C++ default constructor. + */ + CMMFDevSoundUtility(); + + /** + * By default Symbian 2nd phase constructor is private. + */ + void ConstructL(); + + private: // Data + //data_declaration; + + HMMFToneFixedSequenceNames* iFixedSequenceNames; + HBufC8* iInfo; + + }; + +#endif // MMFDEVSOUNDUTILITY_H + +// End of File