/*
 * filter.h
 * Description: Â˲¨Æ÷
 *
 *  Created on: 2014-11-4
 *      Author: Graydon
 *  Modify:
 */

#ifndef CFILTER_H_
#define CFILTER_H_



typedef enum  
{
	bqHighPass, 
	bqLowPass 
}TBQType;




typedef enum{
	bessel,
	butterworth,
	linkwitz_riley
}eFilterType;

void* alg_filter_create(int smpRate,int smpNum,TBQType bqType);
void alg_filter_destroy(void* h);
int  alg_filter_process(void* h , const float *data_in, float *data_out);
void alg_filter_set_param(void* h,int fc,int order,eFilterType subType,float gain);



#endif /* BUTTER_H_ */