--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/speechsrv_plat/nss_tts_utility_api/inc/nssttsutilitybase.h Wed Sep 01 12:29:17 2010 +0100
@@ -0,0 +1,541 @@
+/*
+* Copyright (c) 2006-2007 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: Base class for TTS Utility API
+*
+*/
+
+
+#ifndef NSSTTSUTILITYBASE_H
+#define NSSTTSUTILITYBASE_H
+
+// INCLUDES
+#include <mdaaudiosampleplayer.h>
+#include <nssttscommon.h>
+#include <nssttsutilityobserver.h>
+
+// CLASS DECLARATION
+
+/**
+* Tts Utility interface.
+*
+* @since 3.1
+*/
+class MTtsUtilityBase
+ {
+ public: // New functions
+
+ /**
+ * 2nd phase constructor which can be called from outside.
+ *
+ * @since 3.1
+ * @param "const MTtsClientUtilityObserver& aObserver" Observer reference.
+ */
+ virtual void CreateInstanceSecondPhaseL( MTtsClientUtilityObserver& aObserver ) = 0;
+
+ /**
+ * Destructor. Defined here so that client can use M-class pointer to destroy
+ * the concrete C-object
+ */
+ virtual ~MTtsUtilityBase() {};
+
+ /**
+ * Opens connection to a specific plugin.
+ *
+ * @param "TUid aUid" Plugin UID which will be instantiated
+ * @since 3.2
+ */
+ virtual void OpenPluginL( TUid aUid ) = 0;
+
+ /**
+ * Lists UIDs of available Text-To-Speech plugins.
+ *
+ * @param "RArray<TUid>& aUids" Output parameter which will contain the
+ * list of plugin UIDs after function call.
+ * @since 3.2
+ */
+ virtual void ListPluginsL( RArray<TUid>& aUids ) = 0;
+
+ /**
+ * Sets the default style parameters for synthesis.
+ *
+ * @param "const TTtsStyle& aStyle" Style created by the client
+ * @since 3.2
+ */
+ virtual void SetDefaultStyleL( const TTtsStyle& aStyle ) = 0;
+
+ /**
+ * Returns the registered default style
+ *
+ * @return Style reference
+ * @leave KErrNotReady if no plugin is loaded to handle the function call
+ * @since 3.2
+ */
+ virtual TTtsStyle& DefaultStyleL() = 0;
+
+ /**
+ * Sets the speaking rate of synthesizer.
+ *
+ * @param TInt aRate Speaking rate value
+ * @leave KErrNotSupported if synthesizer does not support speaking rate setting
+ * @since 3.2
+ */
+ virtual void SetSpeakingRateL( TInt aRate ) = 0;
+
+ /**
+ * Returns the current speaking rate value.
+ *
+ * @return Speaking rate value
+ * @leave KErrNotSupported if synthesizer does not support speaking rate setting
+ * @leave KErrNotReady if no plugin is loaded to handle the function call
+ * @since 3.2
+ */
+ virtual TInt SpeakingRateL() = 0;
+
+ /**
+ * Open a descriptor ready for playback
+ *
+ * @param "const TDesC& aDescriptor" Descriptor containing the text to be synthesized.
+ * @since 3.2
+ */
+ virtual void OpenDesL( const TDesC& aDescriptor ) = 0;
+
+ /**
+ * Opens a descriptor and plays it.
+ *
+ * @param "const TDesC& aDescriptor" Descriptor to play
+ * @since 3.2
+ */
+ virtual void OpenAndPlayDesL( const TDesC& aDescriptor ) = 0;
+
+ /**
+ * Returns the list of supported languages.
+ *
+ * @param "RArray<TLanguage>& aLanguages" Output parameter which contains the languages
+ * @leave KErrNotReady if no plugin is loaded to handle the function call
+ * @since 3.2
+ */
+ virtual void GetSupportedLanguagesL( RArray<TLanguage>& aLanguages ) = 0;
+
+ /**
+ * Returns the list of supported voices for a certain language.
+ *
+ * @param "TLanguage aLanguage" Language
+ * @param "RArray<TTtsStyle>& aVoices" Output parameter which contains the voices
+ * @leave KErrNotReady if no plugin is loaded to handle the function call
+ * @since 3.2
+ */
+ virtual void GetSupportedVoicesL( TLanguage aLanguage, RArray<TTtsStyle>& aVoices ) = 0;
+
+ /**
+ * Sets data sink to be a file for the next synthesis event
+ *
+ * @param "RFile& aFile" Open file handle where the output is written
+ * @leave KErrNotReady if no plugin is loaded to handle the function call
+ * @since 3.2
+ */
+ virtual void SetOutputFileL( const RFile& aFile ) = 0;
+
+ /**
+ * Adds new style to style collection.
+ *
+ * @since 3.1
+ * @param "TTtsStyle& aStyle" Reference to style.
+ * @return Assigned style ID.
+ */
+ virtual TTtsStyleID AddStyleL( const TTtsStyle& aStyle ) = 0;
+
+ /**
+ * Deletes style from the style collection.
+ *
+ * @since 3.1
+ * @param "TTtsStyle& aStyle" Reference to style.
+ * @return Error code.
+ */
+ virtual TInt DeleteStyle( TTtsStyleID aID ) = 0;
+
+ /**
+ * Returns number of styles.
+ *
+ * @since 3.1
+ * @return Number of styles.
+ */
+ virtual TUint16 NumberOfStyles() = 0;
+
+ /**
+ * Returns style based on style ID
+ *
+ * @since 3.1
+ * @param "TTtsStyleID aStyleID" Style identifier.
+ * @return Reference to found style.
+ */
+ virtual TTtsStyle& StyleL( TTtsStyleID aStyleID ) = 0;
+
+ /**
+ * Returns style based on index.
+ *
+ * @since 3.1
+ * @param "TUint16 aIndex" Index.
+ * @return Reference to found style.
+ */
+ virtual TTtsStyle& StyleL( TUint16 aIndex ) = 0;
+
+ /**
+ * Begins playback of the initialised audio sample at the current volume
+ * and priority levels.
+ *
+ * When playing of the audio sample is complete, successfully or
+ * otherwise, the callback function
+ * <code>MMdaAudioPlayerCallback::MapcPlayComplete()</code> is
+ * called. This function raises a CMdaAudioPlayerUtility 1 panic if the
+ * audio player utility is not initialised.
+ *
+ * @since 3.1
+ */
+ virtual void Play() = 0;
+
+ /**
+ * Stops playback of the audio sample as soon as possible.
+ *
+ * If the audio sample is playing, playback is stopped as soon as
+ * possible. If playback is already complete, nothing further happens as
+ * a result of calling this function. The callback function
+ * <code>MMdaAudioPlayerCallback::MapcPlayComplete()</code> is not
+ * called.The function raises a CMdaAudioPlayerUtility 1 panic if the
+ * audio player utility is not initialised.
+ *
+ * @since 3.1
+ */
+ virtual void Stop() = 0;
+
+ /**
+ * Changes the current playback volume to a specified value.
+ *
+ * The volume can be changed before or during playback and is effective
+ * immediately. The function raises a CMdaAudioPlayerUtility 1 panic if
+ * the audio player utility is not initialised.
+ *
+ * @since 3.1
+ * @param "TInt aVolume"
+ * The volume setting. This can be any value from zero to
+ * the value returned by a call to
+ * <code>CMdaAudioPlayerUtility::MaxVolume()</code>.
+ * Setting a zero value mutes the sound. Setting the
+ * maximum value results in the loudest possible sound.
+ */
+ virtual void SetVolume( TInt aVolume ) = 0;
+
+ /**
+ * Sets the number of times the audio sample is to be repeated during the
+ * playback operation.
+ *
+ * A period of silence can follow each playing of the sample. The audio
+ * sample can be repeated indefinitely.
+ *
+ * @since 3.1
+ * @param "TInt aRepeatNumberOfTimes"
+ * The number of times the audio sample, together with
+ * the trailing silence, is to be repeated. If this is
+ * set to <code>KMdaRepeatForever</code>, then the audio
+ * sample, together with the trailing silence, is
+ * repeated indefinitely or until <code>Stop()</code> is
+ * called. If this is set to zero, then the audio sample
+ * is not repeated.
+ * @param "const TTimeIntervalMicroSeconds& aTrailingSilence"
+ * The time interval of the trailing silence.
+ */
+ virtual void SetRepeats( TInt aRepeatNumberOfTimes,
+ const TTimeIntervalMicroSeconds& aTrailingSilence ) = 0;
+
+ /**
+ * Returns the duration of the audio sample.
+ *
+ * The function raises a CMdaAudioPlayerUtility 1 panic if the audio
+ * player utility is not initialised.
+ *
+ * @since 3.1
+ * @returns "TTimeIntervalMicroSeconds&"
+ * The duration in microseconds
+ */
+ virtual const TTimeIntervalMicroSeconds& Duration() = 0;
+
+ /**
+ * Returns an integer representing the maximum volume.
+ *
+ * This is the maximum value which can be passed to
+ * <code>CMdaAudioPlayerUtility::SetVolume()</code>. The function raises a
+ * CMdaAudioPlayerUtility 1 panic if the audio player utility is not
+ * initialised.
+ *
+ * @since 3.1
+ * @returns "TInt"
+ * The maximum volume. This value is platform dependent
+ * but is always greater than or equal to one.
+ */
+ virtual TInt MaxVolume() = 0;
+
+ /**
+ * Opens a descriptor source and plays it.
+ *
+ * @since 3.1
+ * @param "TDesC8& aDescriptor" Descriptor to play.
+ */
+ virtual void OpenAndPlayDesL( const TDesC8& aDescriptor ) = 0;
+
+ /**
+ * Opens a file source and plays it.
+ *
+ * @since 3.1
+ * @param "TDesC& aFileName" File to play.
+ */
+ virtual void OpenAndPlayFileL( const TDesC& aFileName ) = 0;
+
+ /**
+ * Opens a parsed text source and plays it.
+ *
+ * @since 3.1
+ * @param "CTtsParsedText& aText" Parsed text object to play.
+ */
+ virtual void OpenAndPlayParsedTextL( CTtsParsedText& aText ) = 0;
+
+ /**
+ * Open a clip from a file
+ *
+ * @since 3.1
+ * @param "const TDesC& aFileName"
+ * File to open
+ * @leave Leaves with one of the system wide error codes if a problem is encountered
+ * opening the file
+ */
+ virtual void OpenFileL( const TDesC& aFileName ) = 0;
+
+ /**
+ * Open a clip from a descriptor
+ *
+ * @since 3.1
+ * @param "const TDesC8& aDescriptor"
+ * Descriptor containing audio clip
+ * @leave Leaves with one of the system wide error codes if a problem is encountered
+ * opening the file
+ */
+ virtual void OpenDesL( const TDesC8& aDescriptor ) = 0;
+
+ /**
+ * Open parsed text source.
+ *
+ * @since 3.1
+ * @param "CTtsParsedText& aText" Reference to parsed text object.
+ */
+ virtual void OpenParsedTextL( CTtsParsedText& aText ) = 0;
+
+ /**
+ * Pauses playback of the audio clip
+ *
+ * @since 3.1
+ * @returns One of the system-wide error codes
+ */
+ virtual TInt Pause() = 0;
+
+ /**
+ * Closes the current audio clip (allowing another clip to be opened)
+ *
+ * @since 3.1
+ */
+ virtual void Close() = 0;
+
+ /**
+ * Returns the current playback position in microseconds
+ *
+ * @since 3.1
+ * @retval "TTimeIntervalMicroSeconds& aPosition"
+ * The current time position in microseconds from the start of the file
+ * @returns One of the global error codes
+ */
+ virtual TInt GetPosition( TTimeIntervalMicroSeconds& aPosition ) = 0;
+
+ /**
+ * Returns the current playback position in word index.
+ *
+ * @since 3.1
+ * @retval "TInt& aWordIndex" The current position in words.
+ * @return Error code.
+ */
+ virtual TInt GetPosition( TInt& aWordIndex ) = 0;
+
+ /**
+ * Set the current playback position in microseconds from the start of the file
+ *
+ * @since 3.1
+ * @param "TTimeIntervalMicroSeconds& aPosition"
+ * The position to move to in microseconds past the start of the file
+ */
+ virtual void SetPosition( const TTimeIntervalMicroSeconds& aPosition ) = 0;
+
+ /**
+ * Set the current playback position in word index.
+ *
+ * @since 3.1
+ * @param "TInt aWordIndex" Playback position.
+ */
+ virtual void SetPosition( TInt aWordIndex ) = 0;
+
+ /**
+ *
+ * Set the priority for playback. This is used to arbitrate between multiple
+ * objects trying to access a single sound device
+ *
+ * @since 3.1
+ * @param "TInt aPriority"
+ * @param "TMdaPriorityPreference aPref"
+ * Quality/time preference tradeoff
+ *
+ * @returns "TInt" One of the global error codes
+ */
+ virtual TInt SetPriority( TInt aPriority, TMdaPriorityPreference aPref ) = 0;
+
+ /**
+ * Returns the current playback volume
+ *
+ * @since 3.1
+ * @retval "TInt& aVolume"
+ * A volume value between 0 and the value returned by <code>MaxVolume()</code>
+ * @returns "TInt" One of the global error codes
+ */
+ virtual TInt GetVolume( TInt& aVolume ) = 0;
+
+ /**
+ * Sets the current playback balance
+ *
+ * @since 3.1
+ * @param "TInt& aBalance"
+ * A value between <code>KMMFBalanceMaxLeft</code>
+ * and <code>KMMFBalanceMaxRight</code>. The default value is
+ * <code>KMMFBalanceCenter</code>
+ * @returns "TInt" One of the global error codes
+ */
+ virtual TInt SetBalance( TInt aBalance = KMMFBalanceCenter ) = 0;
+
+ /**
+ * Returns the current playback balance
+ *
+ * @since 3.1
+ * @retval "TInt& aBalance"
+ * A value between <code>KMMFBalanceMaxLeft</code>
+ * and <code>KMMFBalanceMaxRight</code>
+ * @returns "TInt" One of the global error codes
+ */
+ virtual TInt GetBalance( TInt& aBalance ) = 0;
+
+ /**
+ * Send a synchronous custom command to the controller
+ *
+ * @since 3.1
+ * @param "aDestination" "The destination of the message, consisting of the uid of
+ * the interface of this message."
+ * @param "aFunction" "The function number to indicate which function is to be called
+ * on the interface defined in the aDestination parameter."
+ * @param "aDataTo1" "A reference to the first chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aDataTo2" "A reference to the second chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aDataFrom" "A reference to an area of memory to which the controller framework will
+ * write any data to be passed back to the client. Can't be KNullDesC8."
+ * @return "The result of the request. Exact range of values is dependent on the interface."
+ */
+ virtual TInt CustomCommandSync( const TMMFMessageDestinationPckg& aDestination,
+ TInt aFunction,
+ const TDesC8& aDataTo1,
+ const TDesC8& aDataTo2,
+ TDes8& aDataFrom) = 0;
+ /**
+ * Send a synchronous custom command to the controller
+ *
+ * @since 3.1
+ * @param "aDestination" "The destination of the message, consisting of the uid of
+ * the interface of this message."
+ * @param "aFunction" "The function number to indicate which function is to be called
+ * on the interface defined in the aDestination parameter."
+ * @param "aDataTo1" "A reference to the first chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aDataTo2" "A reference to the second chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @return "The result of the request. Exact range of values is dependent on the interface."
+ */
+ virtual TInt CustomCommandSync( const TMMFMessageDestinationPckg& aDestination,
+ TInt aFunction,
+ const TDesC8& aDataTo1,
+ const TDesC8& aDataTo2 ) = 0;
+ /**
+ * Send a asynchronous custom command to the controller
+ * Note: This method will return immediately. The RunL of the active object owning the
+ * <code>aStatus<\code> parameter will be called when the command is completed by the
+ * controller framework.
+ *
+ * @since 3.1
+ * @param "aDestination" "The destination of the message, consisting of the uid of
+ * the interface of this message."
+ * @param "aFunction" "The function number to indicate which function is to be called
+ * on the interface defined in the aDestination parameter."
+ * @param "aDataTo1" "A reference to the first chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aDataTo2" "A reference to the second chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aDataFrom" "A reference to an area of memory to which the controller framework will
+ * write any data to be passed back to the client. Can't be KNullDesC8."
+ * @param "aStatus" "The TRequestStatus of an active object. This will contain the
+ * result of the request on completion. The exact range of
+ * result values is dependent on the interface."
+ */
+ virtual void CustomCommandAsync( const TMMFMessageDestinationPckg& aDestination,
+ TInt aFunction,
+ const TDesC8& aDataTo1,
+ const TDesC8& aDataTo2,
+ TDes8& aDataFrom,
+ TRequestStatus& aStatus ) = 0;
+ /**
+ * Send a asynchronous custom command to the controller
+ * Note: This method will return immediately. The RunL of the active object owning the
+ * <code>aStatus<\code> parameter will be called when the command is completed by the
+ * controller framework.
+ *
+ * @since 3.1
+ * @param "aDestination" "The destination of the message, consisting of the uid of
+ * the interface of this message."
+ * @param "aFunction" "The function number to indicate which function is to be called
+ * on the interface defined in the aDestination parameter."
+ * @param "aDataTo1" "A reference to the first chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aDataTo2" "A reference to the second chunk of data to be copied to the controller
+ * framework. The exact contents of the data are dependent on the
+ * interface being called. Can be KNullDesC8."
+ * @param "aStatus" "The TRequestStatus of an active object. This will contain the
+ * result of the request on completion. The exact range of
+ * result values is dependent on the interface."
+ */
+ virtual void CustomCommandAsync( const TMMFMessageDestinationPckg& aDestination,
+ TInt aFunction,
+ const TDesC8& aDataTo1,
+ const TDesC8& aDataTo2,
+ TRequestStatus& aStatus ) = 0;
+ };
+
+#endif // NSSTTSUTILITYBASE_H
+
+// End of File