/*
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* basic.h
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*
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* Created on: 2014-9-23
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* Author: DELL
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*/
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#ifndef BASIC_H_
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#define BASIC_H_
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#include "config.h"
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#define MAX_FRAME_NUM 16
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uvoid fgain_init(void);
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/*description: Get the max value of the audio data to the one frame.
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*@param1: the audio data buffer
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*@param2: the length of the data buffer.
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*return: none
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*/
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//float fpeak_data(const float* data,int n);
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/*description: Gain process
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*@param1: the audio data buffer
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*@param2: the old gain, hold last gain value.
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*@param3: the target gain.
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*@param4: the length of the data buffer.
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*return: none
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*/
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uvoid fgain_proc(const ufloat* data_in, ufloat* data_out, ufloat* old_gain, ufloat* new_gain, uint32_t smpl);
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/*description: Get max data of the data.
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*@param1: the data input
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*@param2: data length.
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*return: max data
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*/
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ufloat fpeak_data(const ufloat* data, uint32_t n);
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ufloat crms(const ufloat* data_in, uint32_t data_len, ufloat* nframe_data, uint32_t frame_num);
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/*description: Get N frame 's max level, unit db.
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*@param1: the audio data buffer
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*@param2: the samples of data
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*@param3: the recent sevaral frames max level.
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*@param4: the length of the nframe_db.
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*return: none
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*/
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ufloat alg_get_avg_value(const ufloat x, ufloat * frame_array, uint32_t number);
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ufloat alg_get_min_value(const ufloat x, ufloat * frame_array, uint32_t number);
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ufloat alg_get_max_value(const ufloat x, ufloat * frame_array, uint32_t number);
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ufloat frames_max_data(const ufloat* data_in, uint32_t data_len, ufloat* nframe_data, uint32_t frame_num);
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ufloat fgain_get_factor(ufloat gain);
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#define GF(g) fgain_get_factor(g)
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uvoid fgain_step(const ufloat* data_in, ufloat* data_out, ufloat* old_gain
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, const ufloat target_gain, const ufloat step, uint32_t smpl);
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#endif /* BASIC_H_ */
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