94 lines
3.2 KiB
C
94 lines
3.2 KiB
C
#ifndef __SW_DRC_H
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#define __SW_DRC_H
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#include "generic/typedef.h"
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#include "generic/list.h"
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#include "os/os_api.h"
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#include "drc_api.h"
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//分频器 crossover:
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typedef struct _CrossOverParam_TOOL_SET {
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int way_num; //段数
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int N; //阶数
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int low_freq; //低中分频点
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int high_freq; //高中分频点
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} CrossOverParam_TOOL_SET;
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struct threshold_group {
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float in_threshold;
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float out_threshold;
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};
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struct wdrc_struct {
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u16 attacktime; //启动时间
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u16 releasetime; //释放时间
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struct threshold_group threshold[6];
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float inputgain; //wdrc输入数据放大或者缩小的db数（正数放大，负数缩小）, 例如配2表示 总体增加2dB
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float outputgain; //wdrc输出数据放大或者缩小的db数（正数放大，负数缩小）
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u8 threshold_num;
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u8 rms_time;
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u8 algorithm;//0:PEAK 1:RMS
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u8 mode;//0:PERPOINT 1:TWOPOINT
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u16 holdtime; //预留位置
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u8 reverved[2];//预留位置
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};
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//动态范围控制 DRC:
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typedef struct _wdrc_struct_TOOL_SET {
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int is_bypass; // 1-> byass 0 -> no bypass
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struct wdrc_struct parm;
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} wdrc_struct_TOOL_SET;
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/* //对耳wdrc处理，区分左右声道 */
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// #define L_wdrc 0x10
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// #define LL_wdrc 0x20
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// #define R_wdrc 0x40
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/* #define RR_wdrc 0x80 */
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struct drc_ch {
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CrossOverParam_TOOL_SET crossover;
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union {
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struct wdrc_struct wdrc[4];//[0]low [1]mid [2]high [3]多带之后，再做一次全带
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} _p;
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};
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struct sw_drc {
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void *work_buf[4]; //drc内部驱动句柄
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void *crossoverBuf; //分频器句柄
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int *run_tmp[3]; //多带限幅器或压缩器，运行buf
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int run_tmp_len; //多带限幅器或压缩器，运行buf 长度
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u8 nband; //max<=3，1：全带 2：两段 3：三段
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u8 channel; //通道数
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u8 run32bit; //drc处理输入输出数据位宽是否是32bit 1:32bit 0:16bit
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struct audio_eq *crossover[3];//多带分频器eq句柄
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u32 sample_rate; //采样率
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u8 nsection; //分频器eq段数
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u8 other_band_en; //多带限幅器之后，是否需要再做一次全带的限幅器 1：需要，0：不需要
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u8 bypass[4];
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};
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extern void *get_low_sosmatrix();
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extern void *get_high_sosmatrix();
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extern void *get_band_sosmatrix();
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extern int get_crossover_nsection();
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void *audio_sw_drc_open(void *crossover, void *wdrc, u32 sample_rate, u8 channel, u8 run32bit, u8 other_band_en);
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extern void audio_sw_drc_close(void *hdl);
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int audio_sw_drc_update(void *hdl, void *crossover, void *wdrc, u32 sample_rate, u8 channel);
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extern int audio_sw_drc_run(void *hdl, s16 *in_buf, s16 *out_buf, int npoint_per_channel);
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void sw_drc_set_bypass(struct sw_drc *drc, u8 tar, u8 bypass);
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void audio_hw_crossover_open(struct sw_drc *drc, int (*L_coeff)[3], u8 nsection);
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void audio_hw_crossover_close(struct sw_drc *drc);
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void audio_hw_crossover_run(struct sw_drc *drc, s16 *data, int len);
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void audio_hw_crossover_update(struct sw_drc *drc, int (*L_coeff)[3], u8 nsection);
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void band_merging_32bit(int *in0, int *in1, int *in2, s32 *out_buf_tmp, int points, u8 nband);
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void band_merging_16bit(short *in0, short *in1, short *in2, short *out_buf_tmp, int points, u8 nband);
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#endif
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