#ifndef _ALG_NHS_H__
#define _ALG_NHS_H__

typedef enum {
	nhs_filter_mode_dyn,
	//nhs_filter_mode_fixed,
	nhs_filter_mode_mannul,
}nhs_filters_mode;

/**
* descripts.
* @param smpRate [in] ²ÉÑùÂÊ
* @param smpNum [in] ²ÉÑùµãÊý
* @param fb_threshold [in] ·´À¡ãÐÖµ
* @param panic_threshold [in] ¿Ö»ÅãÐÖµ
* @return NHSËã·¨¾ä±ú
* @note
*/
void* alg_nhs_create(int smpRate,int smpNum,int bandnum, float fb_threshold,float panic_threshold);
/**
* descripts.
* @param pfb [in] ·´À¡ÒÖÖƾä±ú
* @return 
* @note
*/
void alg_nhs_destroy(void* pfb);

/**
* descripts.
* @param pfb [in] ·´À¡ÒÖÖƾä±ú
* @param data_in [in] ´¦ÀíÊäÈë
* @param data_out [out] ´¦ÀíÊä³ö
* @return
* @note
*/
int alg_nhs_process(void* pfb, const float *data_in ,float* data_out);

void alg_nhs_set_bypass(void* handle, int bypass);

void alg_nhs_set_parameters(void* handle, float stepsize, float max_depth, float oct);

void alg_nhs_set_threshold(void* handle , float fb_threshold);

void alg_nhs_set_panic(void* handle , float panic_threshold);

float alg_nhs_get_unit_gain(void* handle , int index);

int alg_nhs_get_unit_frequency(void* handle , int index);

float alg_nhs_get_level(void* handle);

void alg_nhs_filters_set_unit(void* handle,int index,int mode, short freq,float gain);

void alg_nhs_filters_clear(void* handle);

void alg_nhs_init_fft(void);

#endif