/*
 * expander.h
 *
 *  Created on: 2014-9-23
 *      Author: Graydon
 */

#ifndef EXPANDER_H_
#define EXPANDER_H_

/*description: Create Expander handle
 *@param1: sample rate
 *@param2: sample number per frame
 *return: expander handle
 */
uvoidptr alg_expander_create(uint32_t smpl_rate, uint32_t smpl_num);


/*description: The expander handle destroy
 *@param1: The expander handle
 *return: none
 */
uvoid alg_expander_destroy(uvoidptr h);


/*description: Set the expandre handle param
 *@param1: threshold
 *@param2: radio
 *@param3: attack time
 *@param4: release time
 *return: none
 */
uvoid alg_expander_set_param(uvoidptr h, ufloat threshold, ufloat ratio, uint32_t attack, uint32_t release);

/*description: expander process function
 *@param1: handle
 *@param2: input data
 *@param3: output data
 *return: none
 */
uint32_t alg_expander_process(uvoidptr h, const ufloat* dataIn, ufloat* dataOut);

/*description: Get expander has expanded how many db.
 *@param1: handle
 *return: Get the expanded value
 */
ufloat alg_expander_get_reducedb(uvoidptr h);
#endif