huxi
92 lines
3.4 KiB
C
92 lines
3.4 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_update {
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int revere_phase;
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float gain;
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};
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typedef struct _gain_process_TOOL_SET {
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int is_bypass; // 1-> byass 0 -> no bypass
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struct _aud_gain_parm_update parm;
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} gain_param_tool_set;
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struct aud_steromix_gain_parm_update {
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float gain[4];
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};
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typedef struct _steromix_gain_process_TOOL_SET {
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int is_bypass; // 1-> byass 0 -> no bypass
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struct aud_steromix_gain_parm_update parm;
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} stereo_mix_gain_param_tool_set;
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struct aud_gain_parm {
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float gain[4];//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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u8 divide;//左右声道是否需要独立的gain
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};
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struct aud_gain_parm_update {
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float gain[4];//增加多少dB
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};
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struct aud_gain_process {
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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_parm(struct aud_gain_process *hdl, struct aud_gain_parm_update *parm);
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void audio_gain_process_bypass(struct aud_gain_process *hdl, 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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void SplitGainProcess_16Bit(short *in, short *out, float *gain, int channel, int IndataInc, int OutdataInc, int per_channel_npoint); //16位宽
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void SplitGainProcess_32Bit(int *in, int *out, float *gain, int channel, int IndataInc, int OutdataInc, int per_channel_npoint); //32位宽
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//功能：包含增益调节、相位取反、左右声道混合、左右声道互换
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/* 原理上是 */
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// 左声道的数据 = 左声道的数据 * gain[0] + 右声道的数据 * gain[1]
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/* 右声道的数据 = 左声道的数据 * gain[2] + 右声道的数据 * gain[3] */
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//default: gain[0] = 1.0f gain[1] = 0.0f gain[2] = 0.0f ,gain[3] = 1.0f
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void SteroMix_16bit(short *in, short *out, float *gain, int channel, int IndataInc, int OutdataInc, int per_channel_npoint);
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void SteroMix_32bit(int *in, int *out, float *gain, int channel, int IndataInc, int OutdataInc, int per_channel_npoint);
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#endif
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