108 lines
2.8 KiB
C
108 lines
2.8 KiB
C
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/******************************************************************************
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* BackendInt.h *
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*--------------*
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* Internal defs for Backend
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*------------------------------------------------------------------------------
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* Copyright (C) 2000 Microsoft Corporation Date: 03/02/00
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* All Rights Reserved
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*
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********************************************************************* PACOG ***/
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#ifndef __BACKENDINT_H_
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#define __BACKENDINT_H_
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#include "backend.h"
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#include <vector>
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struct Epoch;
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struct NewF0Struct;
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class CSynth
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{
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friend class COlaBuf;
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friend class CSpeakerData;
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public:
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CSynth();
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~CSynth();
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int LpcAnalysis (int iSampFreq, int iOrder);
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int FindPrecedent ();
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void GetNewF0 (std::vector<NewF0Struct>* pvNewF0, double* pdTime, double* pdRunTime );
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protected:
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double* GetDurbinCoef(double* data, int nData);
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void FreeLpcCoef();
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// Read from the input files
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double m_dRunTimeLimit;
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double m_dGain; // Gain to aply to the whole segment
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// Read from the database
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int m_iNumSamples;
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double* m_pdSamples;
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int m_iNumEpochs;
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Epoch* m_pEpochs;
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// Computed for synthesis
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double* m_pdSynEpochs; // Synthesis epoch track
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int* m_piMapping;
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double* m_pdGainVect;
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int m_iNumSynEpochs;
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// For lpc synthesis
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double** m_ppdLpcCoef;
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int m_iLpcOrder;
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};
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class COlaBuf
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{
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public:
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COlaBuf(bool fRtips = false);
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~COlaBuf();
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int Init ( int sampFreq);
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int FillBuffer ( CSynth* unit, int periodNum, double gain);
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int NextPeriod (int periodLen, double** samples);
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private:
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enum {WindowFirstHalf, WindowSecondHalf};
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static const double m_iDefaultPeriod;
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int GetWindowedSignal (int whichBuffer, int periodLength, double** windowed, int* nWindowed);
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void HalfHanning (double* x, int xLen, double ampl, int whichHalf);
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struct CBuffer {
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double* m_pdSamples;
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int m_iNumSamples;
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int m_iCenter;
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double m_dDelay;
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} m_aBuffer[2];
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int m_iSampFreq;
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bool m_fRtips;
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// How to dither unvoiced regions
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int m_iRepetitions;
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int m_iInvert;
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};
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class CTips
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{
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public:
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static enum {LpTips = 1, RTips= 2};
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virtual ~CTips() {};
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virtual void Init (int iSampFormat, int iSampFreq) = 0;
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virtual void SetGain (double dGain) = 0;
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virtual void NewSentence (float* pfF0, int iNumF0, int iF0SampFreq) = 0;
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virtual int SynthesizeUnit (CSynth* pUnit, short** ppnSamples, int* piNumSamples) = 0;
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static CTips* ClassFactory(int iOptions);
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};
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#endif
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