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/* FPMs-TCTS SOFTWARE LIBRARY
*
* File: phonbuff.c
* Purpose: Table of phonemes to implement a simple .pho parser
* Buffer of phonemes for pitch interpolation
* Author: Vincent Pagel
* Email : mbrola@tcts.fpms.ac.be
* Time-stamp: <1998-10-21 16:14:51 pagel>
*
* Copyright (c) 1995-2018 Faculte Polytechnique de Mons (TCTS lab)
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* 11/06/98 : Created from readpho.c
* Warning -> this is a sample program of what a parser could
* be, feel free to implement your own parser (as long as it
* follows the requirements of parser.h)
*
* 20/10/98 : initialize flush from constructor
*/
#ifndef _PHONEBUFF_H
#define _PHONEBUFF_H
#include "diphone.h"
#include "input.h"
#include "parser.h"
#define MAXNPHONESINONESHOT 250 /* Max nbr of phonemes without F0 pattern*/
/* A phonetic command buffer and its pitch points */
typedef struct
{
Input* input; /* Polymorphic input stream */
Phone* Buff[MAXNPHONESINONESHOT];/* Phonetic command buffer */
int NPhones; /* Nbr of phones in the phonetic command buffer */
int CurPhone; /* Index of current phone in the command buffer */
StatePhone state_pho; /* State of the last phoneme serie: EOF FLUSH OK */
bool Closed; /* True if the sequence is closed by a pitch point */
/*
* Silence is a special phoneme used for initialization (the first diphone
* in the stream is always SILENCE-SILENCE. Also used for termination
*/
char *default_phon;
float default_pitch; /* first pitch point of the sequence */
char *comment_symbol; /* user defined escape char */
char *flush_symbol; /* user defined flush command */
float TimeRatio; /* Ratio for the durations of the phones */
float FreqRatio; /* Ratio for the pitch applied to the phones */
} PhoneBuff;
/* Convenient macro to access Phonetable */
#define input(X) (X->input)
#define CurPho(X) (X->Buff[X->CurPhone])
#define NPhones(X) X->NPhones
#define CurPhone(X) X->CurPhone
#define Buff(X) X->Buff
#define val_PhoneBuff(pt,i) (pt->Buff[i])
#define state_pho(pt) (pt->state_pho)
#define Closed(pt) (pt->Closed)
#define default_phon(pt) (pt->default_phon)
#define default_pitch(pt) (pt->default_pitch)
#define comment_symbol(pt) (pt->comment_symbol)
#define flush_symbol(pt) (pt->flush_symbol)
#define TimeRatio(pt) (pt->TimeRatio)
#define FreqRatio(pt) (pt->FreqRatio)
/*
* Last phone of the list
*/
#define tail_PhoneBuff(pt) (val_PhoneBuff(pt,NPhones(pt)))
/*
* First phone of the list
*/
#define head_PhoneBuff(pt) (val_PhoneBuff(pt,0))
PhoneBuff* init_PhoneBuff(Input* my_input, char* default_phon,float default_pitch, float time_ratio, float freq_ratio,char* comment, char* flush);
/*
* Constructor, needs a phoneme and pitch for default allocation (begin
* and end of synthesis)
*/
void close_PhoneBuff(PhoneBuff *pt);
/* free allocated strings in the phonetable */
void reset_PhoneBuff(PhoneBuff *pt);
/* Before a synthesis sequence initialize the loop with a silence */
StatePhone next_PhoneBuff(PhoneBuff *pt,Phone** ph);
/*
* Reads a phone from the phonetic command buffer and prepares the next
* diphone to synthesize ( prev_diph )
* Return value may be: PHO_EOF,PHO_FLUSH,PHO_OK, PHO_ERROR
*
* NB : Uses only phones from 1 to ... NPhones-1 in the buffer.
* Phone 0 = memory from previous buffer.
*/
void init_FlushSymbol(PhoneBuff *pt, char *flush);
/*
* Build a new sscanf target to spot the flush symbol
*/
void init_CommentSymbol(PhoneBuff *pt, char *comment);
/*
* Build a new sscanf target to spot the comment symbol
*/
void init_SilenceSymbol(PhoneBuff *pt, char *silence);
/*
* Build a new sscanf target to spot the comment symbol
*/
#endif
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