68 lines
1.7 KiB
C
68 lines
1.7 KiB
C
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#ifndef _AUDIO_DEC_MIC2PCM_H_
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#define _AUDIO_DEC_MIC2PCM_H_
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#include "asm/includes.h"
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#include "media/includes.h"
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#include "system/includes.h"
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#include "app_config.h"
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#define FIXED_SAMPLE_RATE 44100 //固定采样率
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#define PCM_DEC_IN_SIZE 512
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#define PCM_DEC_IN_CBUF_SIZE (PCM_DEC_IN_SIZE * 8)
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struct pcm_dec_hdl {
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struct audio_decoder decoder;
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struct audio_res_wait wait; // 资源等待句柄
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struct audio_mixer_ch mix_ch; // 叠加句柄
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struct audio_eq_drc *eq_drc; //eq drc句柄
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struct audio_src_handle *hw_src; //硬件src
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cbuffer_t pcm_in_cbuf;
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u8 *p_in_cbuf_buf;
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u8 channel;
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u8 output_ch;
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u16 two_ch_remain_len;
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u16 two_ch_remain_addr;
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u16 sample_rate;
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u32 coding_type;
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u32 src_out_sr;
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u32 id; // 唯一标识符，随机值
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u32 start : 1; // 正在解码
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};
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#define ADC_MIC_BUF_NUM 2
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#define ADC_MIC_IRQ_POINTS 256
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#define ADC_MIC_BUFS_SIZE (ADC_MIC_BUF_NUM * ADC_MIC_IRQ_POINTS)
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struct adc_mic_hdl {
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u8 idle;
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struct audio_adc_output_hdl adc_output;
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struct adc_mic_ch mic_ch;
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s16 adc_buf[ADC_MIC_BUFS_SIZE]; //align 4Bytes
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};
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/* 打开mic监听功能，设置mic采样率 */
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void audio_mic2pcm_dec_open(u16 sample_rate);
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/* 关闭mic2pcm监听功能,释放资源 */
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void mic2pcm_dec_close(void);
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/* mic状态切换,设置mic的采样率,打开mic返回1, 关闭mic返回 0, */
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int mic2pcm_open_status_switch(u16 sample_rate);
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/* 判断mic是否处于运行状态, 运行返回1，未运行返回0 */
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int mic2pcm_dec_is_running(void);
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/* mic监听功能重启, 即关闭后延时XX ms重启mic监听 */
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void mic2pcm_dec_reset(u16 sample_rate, u16 time);
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#endif
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