pure sdk for main
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#ifndef __PDM_AUDIO_H
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#define __PDM_AUDIO_H
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#include "hal/pdm.h"
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/******************************************************************************
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逻辑:priv_el结构体注册可以是一个函数,然后通过该函数和el_point得到buf
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******************************************************************************/
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//返回值是一个buf,录音的buf,priv_el则是应用层的一个结构,el_point则是一个指针地址,audio_set_buf在返回buf前同时要配置el_point的值(最后在audio_get_buf的时候会需要调用)
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typedef void *(*set_buf)(void *priv_el,void *el_point);
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//priv_el则是应用层的一个结构,el_point则是可以寻找到buf的一个结构体,el_point的值是audio_set_buf赋值的
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typedef void (*get_buf)(void *priv_el,void *el_point);
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void pdm_audio_close(void *audio_hdl);
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int pdm_audio_start(void *audio_hdl);
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void pdm_audio_register(void *audio_hdl,void *priv_el,int play_size,set_buf set_buf,get_buf get_buf);
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void *pdm_audio_open(enum pdm_sample_freq freq,enum pdm_channel channel);
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void *audio_task(const char *name);
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#endif
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