pdsstft.h

/*
 * pdsstft.h
 * 
 * Copyright 2011 Fernando Pujaico Rivera <fernando.pujaico.rivera@gmail.com>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 * 
 */

#ifndef __PDSSTFT_H__
#define __PDSSTFT_H__

#ifdef __cplusplus
extern "C" {
#endif 


#include <stdio.h>

#include <pds/pdsftglobal.h>
#include <pds/pdscvector.h>
#include <pds/pdsvector.h>

#ifndef TRUE
        #define TRUE 1
#endif

#ifndef FALSE
        #define FALSE 0
#endif

typedef struct 
{
        PdsFtNatural L;

        PdsCVector *X;
        PdsVector *W;
        PdsFtNatural N;

        PdsFft  *FFT;
}PdsStft;




PdsStft *pds_stft_new(PdsFtNatural L, PdsFtNatural *N);



int pds_stft_set_window_rectangular(PdsStft *STFT);


int pds_stft_set_window_hanning(PdsStft *STFT);


int pds_stft_set_window_hamming(PdsStft *STFT);


int pds_stft_set_window_gauss(PdsStft *STFT, PdsFtReal Sigma);



int pds_stft_evaluate_real(PdsStft *STFT,PdsCVector *Out,const PdsVector *In);


int pds_stft_evaluate_complex(const PdsStft *STFT,PdsCVector *Out,const PdsCVector *In);



void pds_stft_free(PdsStft *STFT);


void pds_stft_destroy(PdsStft **STFT);




#ifdef __cplusplus
}
#endif 

#endif  /* __PDSSTFT_H__ */