spPicola.h

/*
 *      spPicola.h
 */
 
#ifndef SPLIB_SPPICOLA_H
#define SPLIB_SPPICOLA_H
 
#include <sp/spDefs.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define SPPICOLA_VERSION_STRING      "0.9.0"
#define SPPICOLA_VERSION             0
#define SPPICOLA_REVISION            9
#define SPPICOLA_UPDATE_LEVEL        0
#define SPPICOLA_VERSION_ID          (SPPICOLA_VERSION * 1000 + SPPICOLA_REVISION)
 
typedef struct _spPicola *spPicola;
 
typedef struct _spPicolaConfig {
    unsigned long version_id;   /* this member is automatically initialized by spPicolaInitConfig */
 
    double samp_freq;       /* sampling frequency in Hz. default=8000Hz */
    int num_channel;        /* number of channels; stereo=2, mono=1. default=1 (mono) */
 
    double max_input_buf_length_ms; /* maximum input buffer length per channel in msec. default=20msec */
    double min_period_ms;   /* minimum pitch period for internal processing */
    double max_period_ms;   /* maximum pitch period for internal processing */
} spPicolaConfig;
 
extern spBool _spPicolaInitConfig(spPicolaConfig *config, unsigned long version_id);
extern spPicola spPicolaOpen(spPicolaConfig *config);
extern spBool spPicolaSetRate(spPicola picola, double rate, long *max_input_buf_length, long *max_output_buf_length);
extern spBool spPicolaProcess(spPicola picola, 
                  double *input_buf, long *input_buf_length, double *output_buf, long *output_buf_length, long *input_delay);
extern spBool spPicolaFlush(spPicola picola, double *output_buf, long *output_buf_length);
extern spBool spPicolaClose(spPicola picola);
    
#define spPicolaInitConfig(conf) _spPicolaInitConfig(conf, SPPICOLA_VERSION_ID)
 
#ifdef __cplusplus
}  /* Close scope of 'extern "C"' declaration */
#endif
 
#endif /* SPLIB_SPPICOLA_H */