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182 lines
5.3 KiB
182 lines
5.3 KiB
/****************************************************************************
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Main speaking functions for the FreeTTS Plug in
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-------------------
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Copyright : (C) 2004 Paul Giannaros
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-------------------
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Original author: Paul Giannaros <ceruleanblaze@gmail.com>
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Current Maintainer: Paul Giannaros <ceruleanblaze@gmail.com>
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******************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; version 2 of the License. *
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* *
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***************************************************************************/
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#ifndef _FREETTSPROC_H_
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#define _FREETTSPROC_H_
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#include <tqstringlist.h>
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#include <tqmutex.h>
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#include <pluginproc.h>
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class KProcess;
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class FreeTTSProc : public PlugInProc{
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Q_OBJECT
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TQ_OBJECT
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public:
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/**
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* Constructor
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*/
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FreeTTSProc( TQObject* tqparent = 0, const char* name = 0, const TQStringList &args = TQStringList());
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/**
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* Destructor
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*/
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virtual ~FreeTTSProc();
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/**
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* Initializate the speech engine.
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* @param config Settings object.
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* @param configGroup Settings group.
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*/
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virtual bool init(KConfig *config, const TQString &configGroup);
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/**
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* Say a text string.
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* @param text The text to speak.
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*/
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virtual void sayText(const TQString &text);
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/**
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* Synthesize text into an audio file, but do not send to the audio device.
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* @param text The text to be synthesized.
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* @param suggestedFilename Full pathname of file to create. The plugin
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* may ignore this parameter and choose its own
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* filename. KTTSD will query the generated
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* filename using getFilename().
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*
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* If the plugin supports asynchronous operation, it should return immediately.
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*/
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virtual void synthText(const TQString& text, const TQString& suggestedFilename);
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/**
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* Get the generated audio filename from synthText.
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* @return Name of the audio file the plugin generated.
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* Null if no such file.
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*
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* The plugin must not re-use the filename.
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*/
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virtual TQString getFilename();
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/**
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* Stop current operation (saying or synthesizing text).
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* Important: This function may be called from a thread different from the
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* one that called sayText or synthText.
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* If the plugin cannot stop an in-progress @ref sayText or
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* @ref synthText operation, it must not block waiting for it to complete.
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* Instead, return immediately.
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*
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* If a plugin returns before the operation has actually been stopped,
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* the plugin must emit the @ref stopped signal when the operation has
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* actually stopped.
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*
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* The plugin should change to the psIdle state after stopping the
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* operation.
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*/
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virtual void stopText();
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/**
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* Return the current state of the plugin.
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* This function only makes sense in asynchronous mode.
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* @return The pluginState of the plugin.
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*
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* @see pluginState
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*/
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virtual pluginState getState();
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/**
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* Acknowledges a finished state and resets the plugin state to psIdle.
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*
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* If the plugin is not in state psFinished, nothing happens.
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* The plugin may use this call to do any post-processing cleanup,
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* for example, blanking the stored filename (but do not delete the file).
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* Calling program should call getFilename prior to ackFinished.
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*/
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virtual void ackFinished();
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/**
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* Returns True if the plugin supports asynchronous processing,
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* i.e., returns immediately from sayText or synthText.
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* @return True if this plugin supports asynchronous processing.
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*
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* If the plugin returns True, it must also implement @ref getState .
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* It must also emit @ref sayFinished or @ref synthFinished signals when
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* saying or synthesis is completed.
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*/
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virtual bool supportsAsync();
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/**
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* Returns True if the plugin supports synthText method,
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* i.e., is able to synthesize text to a sound file without
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* audibilizing the text.
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* @return True if this plugin supports synthText method.
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*/
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virtual bool supportsSynth();
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/**
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* Say or Synthesize text.
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* @param text The text to be synthesized.
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* @param synthFilename If not Null, synthesize only to this filename, otherwise
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* synthesize and audibilize the text.
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* @param freettsJarPath Path to the freetts jar file.
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*/
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void synth(
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const TQString &text,
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const TQString &synthFilename,
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const TQString &freettsJarPath);
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private slots:
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void slotProcessExited(KProcess* proc);
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void slotReceivedStdout(KProcess* proc, char* buffer, int buflen);
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void slotReceivedStderr(KProcess* proc, char* buffer, int buflen);
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void slotWroteStdin(KProcess* proc);
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private:
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/**
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* Path to FreeTTS jar file (from config).
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*/
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TQString m_freettsJarPath;
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/**
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* FreeTTS process
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*/
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KProcess* m_freettsProc;
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/**
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* Synthesis filename.
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*/
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TQString m_synthFilename;
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/**
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* Plugin state.
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*/
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pluginState m_state;
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/**
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* True when stopText has been called. Used to force transition to psIdle when
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* FreeTTS exits.
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*/
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bool m_waitingStop;
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};
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#endif // _FREETTSPROC_H_
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