64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
#ifndef __AUDIO_GAIN_PORCESS__H
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#define __AUDIO_GAIN_PORCESS__H
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#include "media/audio_stream.h"
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#ifndef RUN_NORMAL
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#define RUN_NORMAL 0
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#endif
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#ifndef RUN_BYPASS
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#define RUN_BYPASS 1
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#endif
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struct aud_gain_parm {
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float gain;//增加多少dB
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u8 channel;//通道数
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u8 indata_inc;//channel ==1 ?1:2;
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u8 outdata_inc;//channel ==1 ?1:2;
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u8 bit_wide;//0:16bit 1：32bit
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u16 gain_name;
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};
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struct aud_gain_parm_update {
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float gain;//增加多少dB powf(10, 界面值gain / 20.0f)
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};
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struct aud_gain_process {
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struct audio_stream_entry entry; // 音频流入口
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struct list_head hentry; //
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struct aud_gain_parm parm;
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u8 status; //内部运行状态机
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u8 update; //设置参数更新标志
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};
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struct aud_gain_process *audio_gain_process_open(struct aud_gain_parm *parm);
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void audio_gain_process_run(struct aud_gain_process *hdl, s16 *data, int len);
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void audio_gain_process_close(struct aud_gain_process *hdl);
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void audio_gain_process_update(u16 gain_name, struct aud_gain_parm_update *parm);
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void audio_gain_process_bypass(u16 gain_name, u8 bypass);
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struct aud_gain_process *get_cur_gain_hdl_by_name(u32 gain_name);
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/*
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* *in:输入数据地址
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* *out:输出数据地址
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* gain:dB值(powf(10, 界面值gain / 20.0f))
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* channel:输入数据通道数
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* Indatainc:同个声道相邻两点的差值 channel ==1 ?1:2
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* OutdataInc:同个声道相邻两点的差值 channel ==1 ?1:2
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* per_channel_npoint:一个声道的点数
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* */
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extern void GainProcess_16Bit(short *in, short *out, float gain, int channel, int IndataInc, int OutdataInc, int per_channel_npoint); //16位宽
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/*
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* *in:输入数据地址
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* *out:输出数据地址
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* gain:dB值powf(10, 界面值gain / 20.0f)
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* channel:输入数据通道数
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* Indatainc:同个声道相邻两点的差值 channel ==1 ?1:2
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* OutdataInc:同个声道相邻两点的差值 channel ==1 ?1:2
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* per_channel_npoint:一个声道的点数
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* */
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extern void GainProcess_32Bit(int *in, int *out, float gain, int channel, int IndataInc, int OutdataInc, int per_channel_npoint); //32位宽
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#endif
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