afSTFTlib.h

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/*
 Copyright (c) 2015 Juha Vilkamo
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
 
#ifndef __afSTFTlib_INCLUDED__
#define __afSTFTlib_INCLUDED__
 
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
   
#define AFSTFT_USE_SAF_UTILITIES
#ifdef AFSTFT_USE_SAF_UTILITIES
# include "../../modules/saf_utilities/saf_utilities.h"
#else
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
#endif
    
extern const float __afSTFT_protoFilter1024[10240];
 
extern const float __afSTFT_protoFilter1024LD[10240];
 
typedef enum {
    AFSTFT_BANDS_CH_TIME, 
    AFSTFT_TIME_CH_BANDS  
}AFSTFT_FDDATA_FORMAT;
    
void afSTFT_create(void ** const phSTFT,
                   int nCHin,
                   int nCHout,
                   int hopsize,
                   int lowDelayMode,
                   int hybridmode,
                   AFSTFT_FDDATA_FORMAT format);
 
void afSTFT_destroy(void ** const phSTFT);
 
void afSTFT_forward(void * const hSTFT,
                    float** dataTD,
                    int framesize,
                    float_complex*** dataFD);
 
void afSTFT_forward_knownDimensions(void * const hSTFT,
                                    float** dataTD,
                                    int framesize,
                                    int dataFD_nCH,
                                    int dataFD_nHops,
                                    float_complex*** dataFD);
 
void afSTFT_forward_flat(void * const hSTFT,
                         float* dataTD,
                         int framesize,
                         float_complex* dataFD);
 
void afSTFT_backward(void * const hSTFT,
                     float_complex*** dataFD,
                     int framesize,
                     float** dataTD);
 
void afSTFT_backward_knownDimensions(void * const hSTFT,
                                     float_complex*** dataFD,
                                     int framesize,
                                     int dataFD_nCH,
                                     int dataFD_nHops,
                                     float** dataTD);
 
void afSTFT_backward_flat(void * const hSTFT,
                          float_complex* dataFD,
                          int framesize,
                          float* dataTD);
 
void afSTFT_channelChange(void * const hSTFT,
                          int new_nCHin,
                          int new_nCHout);
 
void afSTFT_clearBuffers(void * const hSTFT);
 
int afSTFT_getNBands(void * const hSTFT);
 
int afSTFT_getProcDelay(void * const hSTFT);
 
void afSTFT_getCentreFreqs(void * const hSTFT,
                           float fs,
                           int nBands,
                           float* freqVector);
 
void afSTFT_FIRtoFilterbankCoeffs(/* Input Arguments */
                                  float* hIR,
                                  int N_dirs,
                                  int nCH,
                                  int ir_len,
                                  int hopSize,
                                  int LDmode,
                                  int hybridmode,
                                  /* Output Arguments */
                                  float_complex* hFB);
 
 
#ifdef __cplusplus
}/* extern "C" */
#endif /* __cplusplus */
 
#endif /* __afSTFTlib_INCLUDED__ */