82 lines
1.8 KiB
C++
82 lines
1.8 KiB
C++
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/*
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* VoiceSynthesizer.hxx
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*
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* Created on: Apr 24, 2014
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* Author: flightgear
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*/
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#ifndef VOICESYNTHESIZER_HXX_
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#define VOICESYNTHESIZER_HXX_
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#include <simgear/sound/sample_openal.hxx>
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#include <simgear/threads/SGQueue.hxx>
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#include <string>
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struct _Flite_HTS_Engine;
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/**
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* A Voice Synthesizer Interface
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*/
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class VoiceSynthesizer {
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public:
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virtual ~VoiceSynthesizer() {};
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virtual SGSoundSample * synthesize( const std::string & text ) = 0;
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};
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class SoundSampleReadyListener {
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public:
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virtual ~SoundSampleReadyListener() {}
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virtual void SoundSampleReady( SGSharedPtr<SGSoundSample> ) = 0;
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};
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struct SynthesizeRequest {
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SynthesizeRequest() {
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speed = volume = pitch = 1.0;
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listener = NULL;
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}
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SynthesizeRequest( const SynthesizeRequest & other ) {
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text = other.text;
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speed = other.speed;
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volume = other.volume;
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pitch = other.pitch;
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listener = other.listener;
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}
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SynthesizeRequest & operator = ( const SynthesizeRequest & other ) {
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text = other.text;
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speed = other.speed;
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volume = other.volume;
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pitch = other.pitch;
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listener = other.listener;
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return *this;
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}
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std::string text;
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double speed;
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double volume;
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double pitch;
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SoundSampleReadyListener * listener;
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};
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/**
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* A Voice Synthesizer using FLITE+HTS
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*/
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class FLITEVoiceSynthesizer : public VoiceSynthesizer {
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public:
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FLITEVoiceSynthesizer( const std::string & voice );
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~FLITEVoiceSynthesizer();
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virtual SGSoundSample * synthesize( const std::string & text );
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virtual void synthesize( SynthesizeRequest & request );
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private:
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struct _Flite_HTS_Engine * _engine;
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class WorkerThread;
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WorkerThread * _worker;
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typedef SGBlockingQueue<SynthesizeRequest> SynthesizeRequestList;
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SynthesizeRequestList _requests;
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};
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#endif /* VOICESYNTHESIZER_HXX_ */
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