48 lines
1.7 KiB
C
48 lines
1.7 KiB
C
|
||
#ifndef _AUDIO_LOUDNESS_EQ_API_H_
|
||
#define _AUDIO_LOUDNESS_EQ_API_H_
|
||
|
||
#include "media/audio_eq.h"
|
||
|
||
/*
|
||
*等响度使用eq实现，同个数据流中，如需要打开等响度，请打开开eq总使能，关闭其其他eq,例如蓝牙模式eq
|
||
* */
|
||
typedef struct _equalloudness_open_parm {
|
||
u16 sr; //采样率
|
||
u8 ch_num; //通道数
|
||
u8 threadhold_vol; //触发等响度软件数字音量阈值
|
||
int (*vol_cb)(void); //该函数获取系统软件的数字音量
|
||
} loudness_open_parm;
|
||
|
||
|
||
#define LOUDNESS_THREADHOLD_VOL (15)
|
||
|
||
typedef struct _equalloudness_hdl {
|
||
struct audio_eq *loudness; //使用eq实现等响度 句柄
|
||
u16 loudness_timer; //定时查询是否需要触发等响度 timer
|
||
u8 loudness_en; //等响度使能
|
||
u8 prev_status; //记录模块上一状态
|
||
|
||
loudness_open_parm o_parm; //打开传入的参数
|
||
} loudness_hdl;
|
||
|
||
/*----------------------------------------------------------------------------*/
|
||
/**@brief audio_equal_loudness_open, 等响度 打开
|
||
@param *_parm: 等响度初始化参数，详见结构体loudness_open_parm
|
||
@return 等响度句柄
|
||
@note
|
||
*/
|
||
/*----------------------------------------------------------------------------*/
|
||
loudness_hdl *audio_equal_loudness_open(loudness_open_parm *parm);
|
||
|
||
/*----------------------------------------------------------------------------*/
|
||
/**@brief audio_equal_loudness_close 等响度关闭处理
|
||
@param _hdl:句柄
|
||
@return 0:成功 -1：失败
|
||
@note
|
||
*/
|
||
/*----------------------------------------------------------------------------*/
|
||
int audio_equal_loudness_close(loudness_hdl *hdl);
|
||
#endif
|
||
|