#ifndef RECORDER_H
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#define RECORDER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "alsa_cfg.h"
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#include <stdlib.h>
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typedef struct recorder_handle* recorder_handle_t;
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__attribute ((visibility("default"))) recorder_handle_t recorder_open(alsa_open_config_t *config);
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__attribute ((visibility("default"))) int recorder_start(recorder_handle_t self);
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//注意alsa的一帧值一个采样时刻所有通道的数据
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//计算方法：
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// 一帧字节数 = config->bits * config->channels / 8;
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// frame_count必须为config->period_size;
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__attribute ((visibility("default"))) int recorder_read(recorder_handle_t self, char *frame, size_t frame_count);
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__attribute ((visibility("default"))) int recorder_stop(recorder_handle_t self);
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__attribute ((visibility("default"))) void recorder_close(recorder_handle_t self);
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#ifdef __cplusplus
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}
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#endif
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#endif
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