#ifndef _BOX_AUDIO_CODEC_H
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#define _BOX_AUDIO_CODEC_H
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#include "audio_codec.h"
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#include <esp_codec_dev.h>
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#include <esp_codec_dev_defaults.h>
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#include <esp_timer.h>
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class AdcPdmAudioCodec : public AudioCodec {
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private:
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esp_codec_dev_handle_t output_dev_ = nullptr;
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esp_codec_dev_handle_t input_dev_ = nullptr;
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gpio_num_t pa_ctrl_pin_ = GPIO_NUM_NC;
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// 定时器相关成员变量
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esp_timer_handle_t output_timer_ = nullptr;
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static constexpr uint64_t TIMER_TIMEOUT_US = 120000; // 120ms = 120000us
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// 定时器回调函数
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static void OutputTimerCallback(void* arg);
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virtual int Read(int16_t* dest, int samples) override;
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virtual int Write(const int16_t* data, int samples) override;
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public:
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AdcPdmAudioCodec(int input_sample_rate, int output_sample_rate,
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uint32_t adc_mic_channel, gpio_num_t pdm_speak_p, gpio_num_t pdm_speak_n, gpio_num_t pa_ctl);
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virtual ~AdcPdmAudioCodec();
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virtual void SetOutputVolume(int volume) override;
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virtual void EnableInput(bool enable) override;
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virtual void EnableOutput(bool enable) override;
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void Start();
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};
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#endif // _BOX_AUDIO_CODEC_H
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