add some code

main/audio/codecs/box_audio_codec.cc

@@ -0,0 +1,244 @@
+#include "box_audio_codec.h"
+
+#include <esp_log.h>
+#include <driver/i2c_master.h>
+#include <driver/i2s_tdm.h>
+
+#define TAG "BoxAudioCodec"
+
+BoxAudioCodec::BoxAudioCodec(void* i2c_master_handle, int input_sample_rate, int output_sample_rate,
+    gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+    gpio_num_t pa_pin, uint8_t es8311_addr, uint8_t es7210_addr, bool input_reference) {
+    duplex_ = true; // 是否双工
+    input_reference_ = input_reference; // 是否使用参考输入，实现回声消除
+    input_channels_ = input_reference_ ? 2 : 1; // 输入通道数
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+
+    CreateDuplexChannels(mclk, bclk, ws, dout, din);
+
+    // Do initialize of related interface: data_if, ctrl_if and gpio_if
+    audio_codec_i2s_cfg_t i2s_cfg = {
+        .port = I2S_NUM_0,
+        .rx_handle = rx_handle_,
+        .tx_handle = tx_handle_,
+    };
+    data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
+    assert(data_if_ != NULL);
+
+    // Output
+    audio_codec_i2c_cfg_t i2c_cfg = {
+        .port = (i2c_port_t)1,
+        .addr = es8311_addr,
+        .bus_handle = i2c_master_handle,
+    };
+    out_ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
+    assert(out_ctrl_if_ != NULL);
+
+    gpio_if_ = audio_codec_new_gpio();
+    assert(gpio_if_ != NULL);
+
+    es8311_codec_cfg_t es8311_cfg = {};
+    es8311_cfg.ctrl_if = out_ctrl_if_;
+    es8311_cfg.gpio_if = gpio_if_;
+    es8311_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_DAC;
+    es8311_cfg.pa_pin = pa_pin;
+    es8311_cfg.use_mclk = true;
+    es8311_cfg.hw_gain.pa_voltage = 5.0;
+    es8311_cfg.hw_gain.codec_dac_voltage = 3.3;
+    out_codec_if_ = es8311_codec_new(&es8311_cfg);
+    assert(out_codec_if_ != NULL);
+
+    esp_codec_dev_cfg_t dev_cfg = {
+        .dev_type = ESP_CODEC_DEV_TYPE_OUT,
+        .codec_if = out_codec_if_,
+        .data_if = data_if_,
+    };
+    output_dev_ = esp_codec_dev_new(&dev_cfg);
+    assert(output_dev_ != NULL);
+
+    // Input
+    i2c_cfg.addr = es7210_addr;
+    in_ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
+    assert(in_ctrl_if_ != NULL);
+
+    es7210_codec_cfg_t es7210_cfg = {};
+    es7210_cfg.ctrl_if = in_ctrl_if_;
+    es7210_cfg.mic_selected = ES7210_SEL_MIC1 | ES7210_SEL_MIC2 | ES7210_SEL_MIC3 | ES7210_SEL_MIC4;
+    in_codec_if_ = es7210_codec_new(&es7210_cfg);
+    assert(in_codec_if_ != NULL);
+
+    dev_cfg.dev_type = ESP_CODEC_DEV_TYPE_IN;
+    dev_cfg.codec_if = in_codec_if_;
+    input_dev_ = esp_codec_dev_new(&dev_cfg);
+    assert(input_dev_ != NULL);
+
+    ESP_LOGI(TAG, "BoxAudioDevice initialized");
+}
+
+BoxAudioCodec::~BoxAudioCodec() {
+    ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+    esp_codec_dev_delete(output_dev_);
+    ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    esp_codec_dev_delete(input_dev_);
+
+    audio_codec_delete_codec_if(in_codec_if_);
+    audio_codec_delete_ctrl_if(in_ctrl_if_);
+    audio_codec_delete_codec_if(out_codec_if_);
+    audio_codec_delete_ctrl_if(out_ctrl_if_);
+    audio_codec_delete_gpio_if(gpio_if_);
+    audio_codec_delete_data_if(data_if_);
+}
+
+void BoxAudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din) {
+    assert(input_sample_rate_ == output_sample_rate_);
+
+    i2s_chan_config_t chan_cfg = {
+        .id = I2S_NUM_0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
+        .dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .ext_clk_freq_hz = 0,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_STEREO,
+            .slot_mask = I2S_STD_SLOT_BOTH,
+            .ws_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            .left_align = true,
+            .big_endian = false,
+            .bit_order_lsb = false
+        },
+        .gpio_cfg = {
+            .mclk = mclk,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = dout,
+            .din = I2S_GPIO_UNUSED,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+
+    i2s_tdm_config_t tdm_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)input_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .ext_clk_freq_hz = 0,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+            .bclk_div = 8,
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_STEREO,
+            .slot_mask = i2s_tdm_slot_mask_t(I2S_TDM_SLOT0 | I2S_TDM_SLOT1 | I2S_TDM_SLOT2 | I2S_TDM_SLOT3),
+            .ws_width = I2S_TDM_AUTO_WS_WIDTH,
+            .ws_pol = false,
+            .bit_shift = true,
+            .left_align = false,
+            .big_endian = false,
+            .bit_order_lsb = false,
+            .skip_mask = false,
+            .total_slot = I2S_TDM_AUTO_SLOT_NUM
+        },
+        .gpio_cfg = {
+            .mclk = mclk,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = I2S_GPIO_UNUSED,
+            .din = din,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+    ESP_ERROR_CHECK(i2s_channel_init_tdm_mode(rx_handle_, &tdm_cfg));
+    ESP_LOGI(TAG, "Duplex channels created");
+}
+
+void BoxAudioCodec::SetOutputVolume(int volume) {
+    ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
+    AudioCodec::SetOutputVolume(volume);
+}
+
+void BoxAudioCodec::EnableInput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == input_enabled_) {
+        return;
+    }
+    if (enable) {
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 4,
+            .channel_mask = ESP_CODEC_DEV_MAKE_CHANNEL_MASK(0),
+            .sample_rate = (uint32_t)output_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        if (input_reference_) {
+            fs.channel_mask |= ESP_CODEC_DEV_MAKE_CHANNEL_MASK(1);
+        }
+        ESP_ERROR_CHECK(esp_codec_dev_open(input_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_in_channel_gain(input_dev_, ESP_CODEC_DEV_MAKE_CHANNEL_MASK(0), AUDIO_CODEC_DEFAULT_MIC_GAIN));
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    }
+    AudioCodec::EnableInput(enable);
+}
+
+void BoxAudioCodec::EnableOutput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == output_enabled_) {
+        return;
+    }
+    if (enable) {
+        // Play 16bit 1 channel
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)output_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(output_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, output_volume_));
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+    }
+    AudioCodec::EnableOutput(enable);
+}
+
+int BoxAudioCodec::Read(int16_t* dest, int samples) {
+    if (input_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(input_dev_, (void*)dest, samples * sizeof(int16_t)));
+    }
+    return samples;
+}
+
+int BoxAudioCodec::Write(const int16_t* data, int samples) {
+    if (output_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(output_dev_, (void*)data, samples * sizeof(int16_t)));
+    }
+    return samples;
+}

main/audio/codecs/box_audio_codec.h

@@ -0,0 +1,40 @@
+#ifndef _BOX_AUDIO_CODEC_H
+#define _BOX_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+#include <esp_codec_dev.h>
+#include <esp_codec_dev_defaults.h>
+#include <mutex>
+
+
+class BoxAudioCodec : public AudioCodec {
+private:
+    const audio_codec_data_if_t* data_if_ = nullptr;
+    const audio_codec_ctrl_if_t* out_ctrl_if_ = nullptr;
+    const audio_codec_if_t* out_codec_if_ = nullptr;
+    const audio_codec_ctrl_if_t* in_ctrl_if_ = nullptr;
+    const audio_codec_if_t* in_codec_if_ = nullptr;
+    const audio_codec_gpio_if_t* gpio_if_ = nullptr;
+
+    esp_codec_dev_handle_t output_dev_ = nullptr;
+    esp_codec_dev_handle_t input_dev_ = nullptr;
+    std::mutex data_if_mutex_;
+
+    void CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);
+
+    virtual int Read(int16_t* dest, int samples) override;
+    virtual int Write(const int16_t* data, int samples) override;
+
+public:
+    BoxAudioCodec(void* i2c_master_handle, int input_sample_rate, int output_sample_rate,
+        gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+        gpio_num_t pa_pin, uint8_t es8311_addr, uint8_t es7210_addr, bool input_reference);
+    virtual ~BoxAudioCodec();
+
+    virtual void SetOutputVolume(int volume) override;
+    virtual void EnableInput(bool enable) override;
+    virtual void EnableOutput(bool enable) override;
+};
+
+#endif // _BOX_AUDIO_CODEC_H

main/audio/codecs/dummy_audio_codec.cc

@@ -0,0 +1,20 @@
+#include "dummy_audio_codec.h"
+
+DummyAudioCodec::DummyAudioCodec(int input_sample_rate, int output_sample_rate) {
+    duplex_ = true;
+    input_reference_ = false;
+    input_channels_ = 1;
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+}
+
+DummyAudioCodec::~DummyAudioCodec() {
+}
+
+int DummyAudioCodec::Read(int16_t* dest, int samples) {
+    return 0;
+}
+
+int DummyAudioCodec::Write(const int16_t* data, int samples) {
+    return 0;
+}

main/audio/codecs/dummy_audio_codec.h

@@ -0,0 +1,16 @@
+#ifndef _DUMMY_AUDIO_CODEC_H
+#define _DUMMY_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+class DummyAudioCodec : public AudioCodec {
+private:
+    virtual int Read(int16_t* dest, int samples) override;
+    virtual int Write(const int16_t* data, int samples) override;
+
+public:
+    DummyAudioCodec(int input_sample_rate, int output_sample_rate);
+    virtual ~DummyAudioCodec();
+};
+
+#endif // _DUMMY_AUDIO_CODEC_H

main/audio/codecs/es8311_audio_codec.cc

@@ -0,0 +1,187 @@
+#include "es8311_audio_codec.h"
+
+#include <esp_log.h>
+
+#define TAG "Es8311AudioCodec"
+
+Es8311AudioCodec::Es8311AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+    gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+    gpio_num_t pa_pin, uint8_t es8311_addr, bool use_mclk, bool pa_inverted) {
+    duplex_ = true; // 是否双工
+    input_reference_ = false; // 是否使用参考输入，实现回声消除
+    input_channels_ = 1; // 输入通道数
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+    pa_pin_ = pa_pin;
+    pa_inverted_ = pa_inverted;
+
+    assert(input_sample_rate_ == output_sample_rate_);
+    CreateDuplexChannels(mclk, bclk, ws, dout, din);
+
+    // Do initialize of related interface: data_if, ctrl_if and gpio_if
+    audio_codec_i2s_cfg_t i2s_cfg = {
+        .port = I2S_NUM_0,
+        .rx_handle = rx_handle_,
+        .tx_handle = tx_handle_,
+    };
+    data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
+    assert(data_if_ != NULL);
+
+    // Output
+    audio_codec_i2c_cfg_t i2c_cfg = {
+        .port = i2c_port,
+        .addr = es8311_addr,
+        .bus_handle = i2c_master_handle,
+    };
+    ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
+    assert(ctrl_if_ != NULL);
+
+    gpio_if_ = audio_codec_new_gpio();
+    assert(gpio_if_ != NULL);
+
+    es8311_codec_cfg_t es8311_cfg = {};
+    es8311_cfg.ctrl_if = ctrl_if_;
+    es8311_cfg.gpio_if = gpio_if_;
+    es8311_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_BOTH;
+    es8311_cfg.pa_pin = pa_pin;
+    es8311_cfg.use_mclk = use_mclk;
+    es8311_cfg.hw_gain.pa_voltage = 5.0;
+    es8311_cfg.hw_gain.codec_dac_voltage = 3.3;
+    es8311_cfg.pa_reverted = pa_inverted_;
+    codec_if_ = es8311_codec_new(&es8311_cfg);
+    assert(codec_if_ != NULL);
+
+    ESP_LOGI(TAG, "Es8311AudioCodec initialized");
+}
+
+Es8311AudioCodec::~Es8311AudioCodec() {
+    esp_codec_dev_delete(dev_);
+
+    audio_codec_delete_codec_if(codec_if_);
+    audio_codec_delete_ctrl_if(ctrl_if_);
+    audio_codec_delete_gpio_if(gpio_if_);
+    audio_codec_delete_data_if(data_if_);
+}
+
+void Es8311AudioCodec::UpdateDeviceState() {
+    if ((input_enabled_ || output_enabled_) && dev_ == nullptr) {
+        esp_codec_dev_cfg_t dev_cfg = {
+            .dev_type = ESP_CODEC_DEV_TYPE_IN_OUT,
+            .codec_if = codec_if_,
+            .data_if = data_if_,
+        };
+        dev_ = esp_codec_dev_new(&dev_cfg);
+        assert(dev_ != NULL);
+
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)input_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_in_gain(dev_, AUDIO_CODEC_DEFAULT_MIC_GAIN));
+        ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(dev_, output_volume_));
+    } else if (!input_enabled_ && !output_enabled_ && dev_ != nullptr) {
+        esp_codec_dev_close(dev_);
+        dev_ = nullptr;
+    }
+    if (pa_pin_ != GPIO_NUM_NC) {
+        int level = output_enabled_ ? 1 : 0;
+        gpio_set_level(pa_pin_, pa_inverted_ ? !level : level);
+    }
+}
+
+void Es8311AudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din) {
+    assert(input_sample_rate_ == output_sample_rate_);
+
+    i2s_chan_config_t chan_cfg = {
+        .id = I2S_NUM_0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
+        .dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+			#ifdef   I2S_HW_VERSION_2    
+				.ext_clk_freq_hz = 0,
+			#endif
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_STEREO,
+            .slot_mask = I2S_STD_SLOT_BOTH,
+            .ws_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            #ifdef   I2S_HW_VERSION_2   
+                .left_align = true,
+                .big_endian = false,
+                .bit_order_lsb = false
+            #endif
+        },
+        .gpio_cfg = {
+            .mclk = mclk,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = dout,
+            .din = din,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Duplex channels created");
+}
+
+void Es8311AudioCodec::SetOutputVolume(int volume) {
+    ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(dev_, volume));
+    AudioCodec::SetOutputVolume(volume);
+}
+
+void Es8311AudioCodec::EnableInput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == input_enabled_) {
+        return;
+    }
+    AudioCodec::EnableInput(enable);
+    UpdateDeviceState();
+}
+
+void Es8311AudioCodec::EnableOutput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == output_enabled_) {
+        return;
+    }
+    AudioCodec::EnableOutput(enable);
+    UpdateDeviceState();
+}
+
+int Es8311AudioCodec::Read(int16_t* dest, int samples) {
+    if (input_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(dev_, (void*)dest, samples * sizeof(int16_t)));
+    }
+    return samples;
+}
+
+int Es8311AudioCodec::Write(const int16_t* data, int samples) {
+    if (output_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(dev_, (void*)data, samples * sizeof(int16_t)));
+    }
+    return samples;
+}

main/audio/codecs/es8311_audio_codec.h

@@ -0,0 +1,42 @@
+#ifndef _ES8311_AUDIO_CODEC_H
+#define _ES8311_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+#include <driver/i2c_master.h>
+#include <driver/gpio.h>
+#include <esp_codec_dev.h>
+#include <esp_codec_dev_defaults.h>
+#include <mutex>
+
+
+class Es8311AudioCodec : public AudioCodec {
+private:
+    const audio_codec_data_if_t* data_if_ = nullptr;
+    const audio_codec_ctrl_if_t* ctrl_if_ = nullptr;
+    const audio_codec_if_t* codec_if_ = nullptr;
+    const audio_codec_gpio_if_t* gpio_if_ = nullptr;
+
+    esp_codec_dev_handle_t dev_ = nullptr;
+    gpio_num_t pa_pin_ = GPIO_NUM_NC;
+    bool pa_inverted_ = false;
+    std::mutex data_if_mutex_;
+
+    void CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);
+    void UpdateDeviceState();
+
+    virtual int Read(int16_t* dest, int samples) override;
+    virtual int Write(const int16_t* data, int samples) override;
+
+public:
+    Es8311AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+        gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+        gpio_num_t pa_pin, uint8_t es8311_addr, bool use_mclk = true, bool pa_inverted = false);
+    virtual ~Es8311AudioCodec();
+
+    virtual void SetOutputVolume(int volume) override;
+    virtual void EnableInput(bool enable) override;
+    virtual void EnableOutput(bool enable) override;
+};
+
+#endif // _ES8311_AUDIO_CODEC_H

main/audio/codecs/es8374_audio_codec.cc

@@ -0,0 +1,196 @@
+#include "es8374_audio_codec.h"
+
+#include <esp_log.h>
+
+#define TAG "Es8374AudioCodec"
+
+Es8374AudioCodec::Es8374AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+    gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+    gpio_num_t pa_pin, uint8_t es8374_addr, bool use_mclk) {
+    duplex_ = true; // 是否双工
+    input_reference_ = false; // 是否使用参考输入，实现回声消除
+    input_channels_ = 1; // 输入通道数
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+    pa_pin_ = pa_pin;
+    CreateDuplexChannels(mclk, bclk, ws, dout, din);
+
+    // Do initialize of related interface: data_if, ctrl_if and gpio_if
+    audio_codec_i2s_cfg_t i2s_cfg = {
+        .port = I2S_NUM_0,
+        .rx_handle = rx_handle_,
+        .tx_handle = tx_handle_,
+    };
+    data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
+    assert(data_if_ != NULL);
+
+    // Output
+    audio_codec_i2c_cfg_t i2c_cfg = {
+        .port = i2c_port,
+        .addr = es8374_addr,
+        .bus_handle = i2c_master_handle,
+    };
+    ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
+    assert(ctrl_if_ != NULL);
+
+    gpio_if_ = audio_codec_new_gpio();
+    assert(gpio_if_ != NULL);
+
+    es8374_codec_cfg_t es8374_cfg = {};
+    es8374_cfg.ctrl_if = ctrl_if_;
+    es8374_cfg.gpio_if = gpio_if_;
+    es8374_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_BOTH;
+    es8374_cfg.pa_pin = pa_pin;
+    codec_if_ = es8374_codec_new(&es8374_cfg);
+    assert(codec_if_ != NULL);
+
+    esp_codec_dev_cfg_t dev_cfg = {
+        .dev_type = ESP_CODEC_DEV_TYPE_OUT,
+        .codec_if = codec_if_,
+        .data_if = data_if_,
+    };
+    output_dev_ = esp_codec_dev_new(&dev_cfg);
+    assert(output_dev_ != NULL);
+    dev_cfg.dev_type = ESP_CODEC_DEV_TYPE_IN;
+    input_dev_ = esp_codec_dev_new(&dev_cfg);
+    assert(input_dev_ != NULL);
+    esp_codec_set_disable_when_closed(output_dev_, false);
+    esp_codec_set_disable_when_closed(input_dev_, false);
+    ESP_LOGI(TAG, "Es8374AudioCodec initialized");
+}
+
+Es8374AudioCodec::~Es8374AudioCodec() {
+    ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+    esp_codec_dev_delete(output_dev_);
+    ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    esp_codec_dev_delete(input_dev_);
+
+    audio_codec_delete_codec_if(codec_if_);
+    audio_codec_delete_ctrl_if(ctrl_if_);
+    audio_codec_delete_gpio_if(gpio_if_);
+    audio_codec_delete_data_if(data_if_);
+}
+
+void Es8374AudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din) {
+    assert(input_sample_rate_ == output_sample_rate_);
+
+    i2s_chan_config_t chan_cfg = {
+        .id = I2S_NUM_0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = 6,
+        .dma_frame_num = 240,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+			#ifdef   I2S_HW_VERSION_2    
+				.ext_clk_freq_hz = 0,
+			#endif
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_STEREO,
+            .slot_mask = I2S_STD_SLOT_BOTH,
+            .ws_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            #ifdef   I2S_HW_VERSION_2   
+                .left_align = true,
+                .big_endian = false,
+                .bit_order_lsb = false
+            #endif
+        },
+        .gpio_cfg = {
+            .mclk = mclk,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = dout,
+            .din = din,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Duplex channels created");
+}
+
+void Es8374AudioCodec::SetOutputVolume(int volume) {
+    ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
+    AudioCodec::SetOutputVolume(volume);
+}
+
+void Es8374AudioCodec::EnableInput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == input_enabled_) {
+        return;
+    }
+    if (enable) {
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)input_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(input_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_in_gain(input_dev_, AUDIO_CODEC_DEFAULT_MIC_GAIN));
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    }
+    AudioCodec::EnableInput(enable);
+}
+
+void Es8374AudioCodec::EnableOutput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == output_enabled_) {
+        return;
+    }
+    if (enable) {
+        // Play 16bit 1 channel
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)output_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(output_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, output_volume_));
+        if (pa_pin_ != GPIO_NUM_NC) {
+            gpio_set_level(pa_pin_, 1);
+        }
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+        if (pa_pin_ != GPIO_NUM_NC) {
+            gpio_set_level(pa_pin_, 0);
+        }
+    }
+    AudioCodec::EnableOutput(enable);
+}
+
+int Es8374AudioCodec::Read(int16_t* dest, int samples) {
+    if (input_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(input_dev_, (void*)dest, samples * sizeof(int16_t)));
+    }
+    return samples;
+}
+
+int Es8374AudioCodec::Write(const int16_t* data, int samples) {
+    if (output_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(output_dev_, (void*)data, samples * sizeof(int16_t)));
+    }
+    return samples;
+}

main/audio/codecs/es8374_audio_codec.h

@@ -0,0 +1,41 @@
+#ifndef _ES8374_AUDIO_CODEC_H
+#define _ES8374_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+#include <driver/i2c.h>
+#include <driver/gpio.h>
+#include <esp_codec_dev.h>
+#include <esp_codec_dev_defaults.h>
+#include <mutex>
+
+
+class Es8374AudioCodec : public AudioCodec {
+private:
+    const audio_codec_data_if_t* data_if_ = nullptr;
+    const audio_codec_ctrl_if_t* ctrl_if_ = nullptr;
+    const audio_codec_if_t* codec_if_ = nullptr;
+    const audio_codec_gpio_if_t* gpio_if_ = nullptr;
+
+    esp_codec_dev_handle_t output_dev_ = nullptr;
+    esp_codec_dev_handle_t input_dev_ = nullptr;
+    gpio_num_t pa_pin_ = GPIO_NUM_NC;
+    std::mutex data_if_mutex_;
+
+    void CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);
+
+    virtual int Read(int16_t* dest, int samples) override;
+    virtual int Write(const int16_t* data, int samples) override;
+
+public:
+    Es8374AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+        gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+        gpio_num_t pa_pin, uint8_t es8374_addr, bool use_mclk = true);
+    virtual ~Es8374AudioCodec();
+
+    virtual void SetOutputVolume(int volume) override;
+    virtual void EnableInput(bool enable) override;
+    virtual void EnableOutput(bool enable) override;
+};
+
+#endif // _ES8374_AUDIO_CODEC_H

main/audio/codecs/es8388_audio_codec.cc

@@ -0,0 +1,207 @@
+#include "es8388_audio_codec.h"
+
+#include <esp_log.h>
+
+#define TAG "Es8388AudioCodec"
+
+Es8388AudioCodec::Es8388AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+    gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+    gpio_num_t pa_pin, uint8_t es8388_addr) {
+    duplex_ = true; // 是否双工
+    input_reference_ = false; // 是否使用参考输入，实现回声消除
+    input_channels_ = 1; // 输入通道数
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+    pa_pin_ = pa_pin;                                                                                                                                                                                     CreateDuplexChannels(mclk, bclk, ws, dout, din);
+
+    // Do initialize of related interface: data_if, ctrl_if and gpio_if
+    audio_codec_i2s_cfg_t i2s_cfg = {
+        .port = I2S_NUM_0,
+        .rx_handle = rx_handle_,
+        .tx_handle = tx_handle_,
+    };
+    data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
+    assert(data_if_ != NULL);
+
+    // Output
+    audio_codec_i2c_cfg_t i2c_cfg = {
+        .port = i2c_port,
+        .addr = es8388_addr,
+        .bus_handle = i2c_master_handle,
+    };
+    ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
+    assert(ctrl_if_ != NULL);
+
+    gpio_if_ = audio_codec_new_gpio();
+    assert(gpio_if_ != NULL);
+
+    es8388_codec_cfg_t es8388_cfg = {};
+    es8388_cfg.ctrl_if = ctrl_if_;
+    es8388_cfg.gpio_if = gpio_if_;
+    es8388_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_BOTH;
+    es8388_cfg.master_mode = true;
+    es8388_cfg.pa_pin = pa_pin;
+    es8388_cfg.pa_reverted = false;
+    es8388_cfg.hw_gain.pa_voltage = 5.0;
+    es8388_cfg.hw_gain.codec_dac_voltage = 3.3;
+    codec_if_ = es8388_codec_new(&es8388_cfg);
+    assert(codec_if_ != NULL);
+
+    esp_codec_dev_cfg_t outdev_cfg = {
+        .dev_type = ESP_CODEC_DEV_TYPE_OUT,
+        .codec_if = codec_if_,
+        .data_if = data_if_,
+    };
+    output_dev_ = esp_codec_dev_new(&outdev_cfg);
+    assert(output_dev_ != NULL);
+
+    esp_codec_dev_cfg_t indev_cfg = {
+        .dev_type = ESP_CODEC_DEV_TYPE_IN,
+        .codec_if = codec_if_,
+        .data_if = data_if_,
+    };
+    input_dev_ = esp_codec_dev_new(&indev_cfg);
+    assert(input_dev_ != NULL);
+    esp_codec_set_disable_when_closed(output_dev_, false);
+    esp_codec_set_disable_when_closed(input_dev_, false);
+    ESP_LOGI(TAG, "Es8388AudioCodec initialized");
+}
+
+Es8388AudioCodec::~Es8388AudioCodec() {
+    ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+    esp_codec_dev_delete(output_dev_);
+    ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    esp_codec_dev_delete(input_dev_);
+
+    audio_codec_delete_codec_if(codec_if_);
+    audio_codec_delete_ctrl_if(ctrl_if_);
+    audio_codec_delete_gpio_if(gpio_if_);
+    audio_codec_delete_data_if(data_if_);
+}
+
+void Es8388AudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din){
+    assert(input_sample_rate_ == output_sample_rate_);
+
+    i2s_chan_config_t chan_cfg = {
+        .id = I2S_NUM_0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
+        .dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .ext_clk_freq_hz = 0,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_STEREO,
+            .slot_mask = I2S_STD_SLOT_BOTH,
+            .ws_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            .left_align = true,
+            .big_endian = false,
+            .bit_order_lsb = false
+        },
+        .gpio_cfg = {
+            .mclk = mclk,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = dout,
+            .din = din,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Duplex channels created");
+}
+
+void Es8388AudioCodec::SetOutputVolume(int volume) {
+    ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
+    AudioCodec::SetOutputVolume(volume);
+}
+
+void Es8388AudioCodec::EnableInput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == input_enabled_) {
+        return;
+    }
+    if (enable) {
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)input_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(input_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_in_gain(input_dev_, 24.0));
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    }
+    AudioCodec::EnableInput(enable);
+}
+
+void Es8388AudioCodec::EnableOutput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == output_enabled_) {
+        return;
+    }
+    if (enable) {
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)output_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(output_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, output_volume_));
+
+        // Set analog output volume to 0dB, default is -45dB
+        uint8_t reg_val = 30; // 0dB
+        uint8_t regs[] = { 46, 47, 48, 49 }; // HP_LVOL, HP_RVOL, SPK_LVOL, SPK_RVOL
+        for (uint8_t reg : regs) {
+            ctrl_if_->write_reg(ctrl_if_, reg, 1, &reg_val, 1);
+        }
+
+        if (pa_pin_ != GPIO_NUM_NC) {
+            gpio_set_level(pa_pin_, 1);
+        }
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+        if (pa_pin_ != GPIO_NUM_NC) {
+            gpio_set_level(pa_pin_, 0);
+        }
+    }
+    AudioCodec::EnableOutput(enable);
+}
+
+int Es8388AudioCodec::Read(int16_t* dest, int samples) {
+    if (input_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(input_dev_, (void*)dest, samples * sizeof(int16_t)));
+    }
+    return samples;
+}
+
+int Es8388AudioCodec::Write(const int16_t* data, int samples) {
+    if (output_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(output_dev_, (void*)data, samples * sizeof(int16_t)));
+    }
+    return samples;
+}

main/audio/codecs/es8388_audio_codec.h

@@ -0,0 +1,40 @@
+#ifndef _ES8388_AUDIO_CODEC_H
+#define _ES8388_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+#include <driver/i2c_master.h>
+#include <esp_codec_dev.h>
+#include <esp_codec_dev_defaults.h>
+#include <mutex>
+
+
+class Es8388AudioCodec : public AudioCodec {
+private:
+    const audio_codec_data_if_t* data_if_ = nullptr;
+    const audio_codec_ctrl_if_t* ctrl_if_ = nullptr;
+    const audio_codec_if_t* codec_if_ = nullptr;
+    const audio_codec_gpio_if_t* gpio_if_ = nullptr;
+
+    esp_codec_dev_handle_t output_dev_ = nullptr;
+    esp_codec_dev_handle_t input_dev_ = nullptr;
+    gpio_num_t pa_pin_ = GPIO_NUM_NC;
+    std::mutex data_if_mutex_;
+
+    void CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);
+
+    virtual int Read(int16_t* dest, int samples) override;
+    virtual int Write(const int16_t* data, int samples) override;
+
+public:
+    Es8388AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+        gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+        gpio_num_t pa_pin, uint8_t es8388_addr);
+    virtual ~Es8388AudioCodec();
+
+    virtual void SetOutputVolume(int volume) override;
+    virtual void EnableInput(bool enable) override;
+    virtual void EnableOutput(bool enable) override;
+};
+
+#endif // _ES8388_AUDIO_CODEC_H

main/audio/codecs/es8389_audio_codec.cc

@@ -0,0 +1,203 @@
+#include "es8389_audio_codec.h"
+
+#include <esp_log.h>
+
+static const char TAG[] = "Es8389AudioCodec";
+
+Es8389AudioCodec::Es8389AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+    gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+    gpio_num_t pa_pin, uint8_t es8389_addr, bool use_mclk) {
+    duplex_ = true; // 是否双工
+    input_reference_ = false; // 是否使用参考输入，实现回声消除
+    input_channels_ = 1; // 输入通道数
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+    pa_pin_ = pa_pin;
+    CreateDuplexChannels(mclk, bclk, ws, dout, din);
+
+    // Do initialize of related interface: data_if, ctrl_if and gpio_if
+    audio_codec_i2s_cfg_t i2s_cfg = {
+        .port = I2S_NUM_0,
+        .rx_handle = rx_handle_,
+        .tx_handle = tx_handle_,
+    };
+    data_if_ = audio_codec_new_i2s_data(&i2s_cfg);
+    assert(data_if_ != NULL);
+
+    // Output
+    audio_codec_i2c_cfg_t i2c_cfg = {
+        .port = i2c_port,
+        .addr = es8389_addr,
+        .bus_handle = i2c_master_handle,
+    };
+    ctrl_if_ = audio_codec_new_i2c_ctrl(&i2c_cfg);
+    assert(ctrl_if_ != NULL);
+
+    gpio_if_ = audio_codec_new_gpio();
+    assert(gpio_if_ != NULL);
+
+    es8389_codec_cfg_t es8389_cfg = {};
+    es8389_cfg.ctrl_if = ctrl_if_;
+    es8389_cfg.gpio_if = gpio_if_;
+    es8389_cfg.codec_mode = ESP_CODEC_DEV_WORK_MODE_BOTH;
+    es8389_cfg.pa_pin = pa_pin;
+    es8389_cfg.use_mclk = use_mclk;
+    es8389_cfg.hw_gain.pa_voltage = 5.0;
+    es8389_cfg.hw_gain.codec_dac_voltage = 3.3;
+    codec_if_ = es8389_codec_new(&es8389_cfg);
+
+    assert(codec_if_ != NULL);
+
+    esp_codec_dev_cfg_t outdev_cfg = {
+        .dev_type = ESP_CODEC_DEV_TYPE_OUT,
+        .codec_if = codec_if_,
+        .data_if = data_if_,
+    };
+    output_dev_ = esp_codec_dev_new(&outdev_cfg);
+    assert(output_dev_ != NULL);
+
+    esp_codec_dev_cfg_t indev_cfg = {
+        .dev_type = ESP_CODEC_DEV_TYPE_IN,
+        .codec_if = codec_if_,
+        .data_if = data_if_,
+    };
+    input_dev_ = esp_codec_dev_new(&indev_cfg);
+    assert(input_dev_ != NULL);
+    esp_codec_set_disable_when_closed(output_dev_, false);
+    esp_codec_set_disable_when_closed(input_dev_, false);
+    ESP_LOGI(TAG, "Es8389AudioCodec initialized");
+}
+
+Es8389AudioCodec::~Es8389AudioCodec() {
+    ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+    esp_codec_dev_delete(output_dev_);
+    ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    esp_codec_dev_delete(input_dev_);
+
+    audio_codec_delete_codec_if(codec_if_);
+    audio_codec_delete_ctrl_if(ctrl_if_);
+    audio_codec_delete_gpio_if(gpio_if_);
+    audio_codec_delete_data_if(data_if_);
+}
+
+void Es8389AudioCodec::CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din) {
+    assert(input_sample_rate_ == output_sample_rate_);
+
+    i2s_chan_config_t chan_cfg = {
+        .id = I2S_NUM_0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = 6,
+        .dma_frame_num = 240,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+#ifdef   I2S_HW_VERSION_2    
+                .ext_clk_freq_hz = 0,
+#endif
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_STEREO,
+            .slot_mask = I2S_STD_SLOT_BOTH,
+            .ws_width = I2S_DATA_BIT_WIDTH_16BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            .left_align = true,
+            .big_endian = false,
+            .bit_order_lsb = false
+        },
+        .gpio_cfg = {
+            .mclk = mclk,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = dout,
+            .din = din,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Duplex channels created");
+}
+
+void Es8389AudioCodec::SetOutputVolume(int volume) {
+    ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, volume));
+    AudioCodec::SetOutputVolume(volume);
+}
+
+void Es8389AudioCodec::EnableInput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == input_enabled_) {
+        return;
+    }
+    if (enable) {
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)input_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(input_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_in_gain(input_dev_, 40.0));
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(input_dev_));
+    }
+    AudioCodec::EnableInput(enable);
+}
+
+void Es8389AudioCodec::EnableOutput(bool enable) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    if (enable == output_enabled_) {
+        return;
+    }
+    if (enable) {
+        // Play 16bit 1 channel
+        esp_codec_dev_sample_info_t fs = {
+            .bits_per_sample = 16,
+            .channel = 1,
+            .channel_mask = 0,
+            .sample_rate = (uint32_t)output_sample_rate_,
+            .mclk_multiple = 0,
+        };
+        ESP_ERROR_CHECK(esp_codec_dev_open(output_dev_, &fs));
+        ESP_ERROR_CHECK(esp_codec_dev_set_out_vol(output_dev_, output_volume_));
+        if (pa_pin_ != GPIO_NUM_NC) {
+            gpio_set_level(pa_pin_, 1);
+        }
+    } else {
+        ESP_ERROR_CHECK(esp_codec_dev_close(output_dev_));
+        if (pa_pin_ != GPIO_NUM_NC) {
+            gpio_set_level(pa_pin_, 0);
+        }
+    }
+    AudioCodec::EnableOutput(enable);
+}
+
+int Es8389AudioCodec::Read(int16_t* dest, int samples) {
+    if (input_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_read(input_dev_, (void*)dest, samples * sizeof(int16_t)));
+    }
+    return samples;
+}
+
+int Es8389AudioCodec::Write(const int16_t* data, int samples) {
+    if (output_enabled_) {
+        ESP_ERROR_CHECK_WITHOUT_ABORT(esp_codec_dev_write(output_dev_, (void*)data, samples * sizeof(int16_t)));
+    }
+    return samples;
+}

main/audio/codecs/es8389_audio_codec.h

@@ -0,0 +1,40 @@
+#ifndef _ES8389_AUDIO_CODEC_H
+#define _ES8389_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+#include <driver/i2c.h>
+#include <driver/gpio.h>
+#include <esp_codec_dev.h>
+#include <esp_codec_dev_defaults.h>
+#include <mutex>
+
+class Es8389AudioCodec : public AudioCodec {
+private:
+    const audio_codec_data_if_t* data_if_ = nullptr;
+    const audio_codec_ctrl_if_t* ctrl_if_ = nullptr;
+    const audio_codec_if_t* codec_if_ = nullptr;
+    const audio_codec_gpio_if_t* gpio_if_ = nullptr;
+
+    esp_codec_dev_handle_t output_dev_ = nullptr;
+    esp_codec_dev_handle_t input_dev_ = nullptr;
+    gpio_num_t pa_pin_ = GPIO_NUM_NC;
+    std::mutex data_if_mutex_;
+
+    void CreateDuplexChannels(gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);
+
+    virtual int Read(int16_t* dest, int samples) override;
+    virtual int Write(const int16_t* data, int samples) override;
+
+public:
+    Es8389AudioCodec(void* i2c_master_handle, i2c_port_t i2c_port, int input_sample_rate, int output_sample_rate,
+        gpio_num_t mclk, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din,
+        gpio_num_t pa_pin, uint8_t es8389_addr, bool use_mclk = true);
+    virtual ~Es8389AudioCodec();
+
+    virtual void SetOutputVolume(int volume) override;
+    virtual void EnableInput(bool enable) override;
+    virtual void EnableOutput(bool enable) override;
+};
+
+#endif // _ES8389_AUDIO_CODEC_H

main/audio/codecs/no_audio_codec.cc

@@ -0,0 +1,332 @@
+#include "no_audio_codec.h"
+
+#include <esp_log.h>
+#include <cmath>
+#include <cstring>
+
+#define TAG "NoAudioCodec"
+
+NoAudioCodec::~NoAudioCodec() {
+    if (rx_handle_ != nullptr) {
+        ESP_ERROR_CHECK(i2s_channel_disable(rx_handle_));
+    }
+    if (tx_handle_ != nullptr) {
+        ESP_ERROR_CHECK(i2s_channel_disable(tx_handle_));
+    }
+}
+
+NoAudioCodecDuplex::NoAudioCodecDuplex(int input_sample_rate, int output_sample_rate, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din) {
+    duplex_ = true;
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+
+    i2s_chan_config_t chan_cfg = {
+        .id = I2S_NUM_0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
+        .dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, &rx_handle_));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+			#ifdef   I2S_HW_VERSION_2
+				.ext_clk_freq_hz = 0,
+			#endif
+
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_32BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_MONO,
+            .slot_mask = I2S_STD_SLOT_LEFT,
+            .ws_width = I2S_DATA_BIT_WIDTH_32BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            #ifdef   I2S_HW_VERSION_2
+                .left_align = true,
+                .big_endian = false,
+                .bit_order_lsb = false
+            #endif
+
+        },
+        .gpio_cfg = {
+            .mclk = I2S_GPIO_UNUSED,
+            .bclk = bclk,
+            .ws = ws,
+            .dout = dout,
+            .din = din,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Duplex channels created");
+}
+
+
+NoAudioCodecSimplex::NoAudioCodecSimplex(int input_sample_rate, int output_sample_rate, gpio_num_t spk_bclk, gpio_num_t spk_ws, gpio_num_t spk_dout, gpio_num_t mic_sck, gpio_num_t mic_ws, gpio_num_t mic_din) {
+    duplex_ = false;
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+
+    // Create a new channel for speaker
+    i2s_chan_config_t chan_cfg = {
+        .id = (i2s_port_t)0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
+        .dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, nullptr));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+			#ifdef   I2S_HW_VERSION_2
+				.ext_clk_freq_hz = 0,
+			#endif
+
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_32BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_MONO,
+            .slot_mask = I2S_STD_SLOT_LEFT,
+            .ws_width = I2S_DATA_BIT_WIDTH_32BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            #ifdef   I2S_HW_VERSION_2
+                .left_align = true,
+                .big_endian = false,
+                .bit_order_lsb = false
+            #endif
+
+        },
+        .gpio_cfg = {
+            .mclk = I2S_GPIO_UNUSED,
+            .bclk = spk_bclk,
+            .ws = spk_ws,
+            .dout = spk_dout,
+            .din = I2S_GPIO_UNUSED,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+
+    // Create a new channel for MIC
+    chan_cfg.id = (i2s_port_t)1;
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, nullptr, &rx_handle_));
+    std_cfg.clk_cfg.sample_rate_hz = (uint32_t)input_sample_rate_;
+    std_cfg.gpio_cfg.bclk = mic_sck;
+    std_cfg.gpio_cfg.ws = mic_ws;
+    std_cfg.gpio_cfg.dout = I2S_GPIO_UNUSED;
+    std_cfg.gpio_cfg.din = mic_din;
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Simplex channels created");
+}
+
+NoAudioCodecSimplex::NoAudioCodecSimplex(int input_sample_rate, int output_sample_rate, gpio_num_t spk_bclk, gpio_num_t spk_ws, gpio_num_t spk_dout, i2s_std_slot_mask_t spk_slot_mask, gpio_num_t mic_sck, gpio_num_t mic_ws, gpio_num_t mic_din, i2s_std_slot_mask_t mic_slot_mask){
+    duplex_ = false;
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+
+    // Create a new channel for speaker
+    i2s_chan_config_t chan_cfg = {
+        .id = (i2s_port_t)0,
+        .role = I2S_ROLE_MASTER,
+        .dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM,
+        .dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM,
+        .auto_clear_after_cb = true,
+        .auto_clear_before_cb = false,
+        .intr_priority = 0,
+    };
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, &tx_handle_, nullptr));
+
+    i2s_std_config_t std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+			#ifdef   I2S_HW_VERSION_2
+				.ext_clk_freq_hz = 0,
+			#endif
+
+        },
+        .slot_cfg = {
+            .data_bit_width = I2S_DATA_BIT_WIDTH_32BIT,
+            .slot_bit_width = I2S_SLOT_BIT_WIDTH_AUTO,
+            .slot_mode = I2S_SLOT_MODE_MONO,
+            .slot_mask = spk_slot_mask,
+            .ws_width = I2S_DATA_BIT_WIDTH_32BIT,
+            .ws_pol = false,
+            .bit_shift = true,
+            #ifdef   I2S_HW_VERSION_2
+                .left_align = true,
+                .big_endian = false,
+                .bit_order_lsb = false
+            #endif
+
+        },
+        .gpio_cfg = {
+            .mclk = I2S_GPIO_UNUSED,
+            .bclk = spk_bclk,
+            .ws = spk_ws,
+            .dout = spk_dout,
+            .din = I2S_GPIO_UNUSED,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv = false
+            }
+        }
+    };
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &std_cfg));
+
+    // Create a new channel for MIC
+    chan_cfg.id = (i2s_port_t)1;
+    ESP_ERROR_CHECK(i2s_new_channel(&chan_cfg, nullptr, &rx_handle_));
+    std_cfg.clk_cfg.sample_rate_hz = (uint32_t)input_sample_rate_;
+    std_cfg.slot_cfg.slot_mask = mic_slot_mask;
+    std_cfg.gpio_cfg.bclk = mic_sck;
+    std_cfg.gpio_cfg.ws = mic_ws;
+    std_cfg.gpio_cfg.dout = I2S_GPIO_UNUSED;
+    std_cfg.gpio_cfg.din = mic_din;
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(rx_handle_, &std_cfg));
+    ESP_LOGI(TAG, "Simplex channels created");
+}
+
+NoAudioCodecSimplexPdm::NoAudioCodecSimplexPdm(int input_sample_rate, int output_sample_rate, gpio_num_t spk_bclk, gpio_num_t spk_ws, gpio_num_t spk_dout, gpio_num_t mic_sck, gpio_num_t mic_din) {
+    duplex_ = false;
+    input_sample_rate_ = input_sample_rate;
+    output_sample_rate_ = output_sample_rate;
+
+    // Create a new channel for speaker
+    i2s_chan_config_t tx_chan_cfg = I2S_CHANNEL_DEFAULT_CONFIG((i2s_port_t)1, I2S_ROLE_MASTER);
+    tx_chan_cfg.dma_desc_num = AUDIO_CODEC_DMA_DESC_NUM;
+    tx_chan_cfg.dma_frame_num = AUDIO_CODEC_DMA_FRAME_NUM;
+    tx_chan_cfg.auto_clear_after_cb = true;
+    tx_chan_cfg.auto_clear_before_cb = false;
+    tx_chan_cfg.intr_priority = 0;
+    ESP_ERROR_CHECK(i2s_new_channel(&tx_chan_cfg, &tx_handle_, NULL));
+
+
+    i2s_std_config_t tx_std_cfg = {
+        .clk_cfg = {
+            .sample_rate_hz = (uint32_t)output_sample_rate_,
+            .clk_src = I2S_CLK_SRC_DEFAULT,
+            .mclk_multiple = I2S_MCLK_MULTIPLE_256,
+			#ifdef   I2S_HW_VERSION_2
+				.ext_clk_freq_hz = 0,
+			#endif
+
+        },
+        .slot_cfg = I2S_STD_MSB_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_32BIT, I2S_SLOT_MODE_MONO),
+        .gpio_cfg = {
+            .mclk = I2S_GPIO_UNUSED,
+            .bclk = spk_bclk,
+            .ws = spk_ws,
+            .dout = spk_dout,
+            .din = I2S_GPIO_UNUSED,
+            .invert_flags = {
+                .mclk_inv = false,
+                .bclk_inv = false,
+                .ws_inv   = false,
+            },
+        },
+    };
+    ESP_ERROR_CHECK(i2s_channel_init_std_mode(tx_handle_, &tx_std_cfg));
+#if SOC_I2S_SUPPORTS_PDM_RX
+    // Create a new channel for MIC in PDM mode
+    i2s_chan_config_t rx_chan_cfg = I2S_CHANNEL_DEFAULT_CONFIG((i2s_port_t)0, I2S_ROLE_MASTER);
+    ESP_ERROR_CHECK(i2s_new_channel(&rx_chan_cfg, NULL, &rx_handle_));
+    i2s_pdm_rx_config_t pdm_rx_cfg = {
+        .clk_cfg = I2S_PDM_RX_CLK_DEFAULT_CONFIG((uint32_t)input_sample_rate_),
+        /* The data bit-width of PDM mode is fixed to 16 */
+        .slot_cfg = I2S_PDM_RX_SLOT_DEFAULT_CONFIG(I2S_DATA_BIT_WIDTH_16BIT, I2S_SLOT_MODE_MONO),
+        .gpio_cfg = {
+            .clk = mic_sck,
+            .din = mic_din,
+
+            .invert_flags = {
+                .clk_inv = false,
+            },
+        },
+    };
+    ESP_ERROR_CHECK(i2s_channel_init_pdm_rx_mode(rx_handle_, &pdm_rx_cfg));
+#else
+    ESP_LOGE(TAG, "PDM is not supported");
+#endif
+    ESP_LOGI(TAG, "Simplex channels created");
+}
+
+int NoAudioCodec::Write(const int16_t* data, int samples) {
+    std::lock_guard<std::mutex> lock(data_if_mutex_);
+    std::vector<int32_t> buffer(samples);
+
+    // output_volume_: 0-100
+    // volume_factor_: 0-65536
+    int32_t volume_factor = pow(double(output_volume_) / 100.0, 2) * 65536;
+    for (int i = 0; i < samples; i++) {
+        int64_t temp = int64_t(data[i]) * volume_factor; // 使用 int64_t 进行乘法运算
+        if (temp > INT32_MAX) {
+            buffer[i] = INT32_MAX;
+        } else if (temp < INT32_MIN) {
+            buffer[i] = INT32_MIN;
+        } else {
+            buffer[i] = static_cast<int32_t>(temp);
+        }
+    }
+
+    size_t bytes_written;
+    ESP_ERROR_CHECK(i2s_channel_write(tx_handle_, buffer.data(), samples * sizeof(int32_t), &bytes_written, portMAX_DELAY));
+    return bytes_written / sizeof(int32_t);
+}
+
+int NoAudioCodec::Read(int16_t* dest, int samples) {
+    size_t bytes_read;
+
+    std::vector<int32_t> bit32_buffer(samples);
+    if (i2s_channel_read(rx_handle_, bit32_buffer.data(), samples * sizeof(int32_t), &bytes_read, portMAX_DELAY) != ESP_OK) {
+        ESP_LOGE(TAG, "Read Failed!");
+        return 0;
+    }
+
+    samples = bytes_read / sizeof(int32_t);
+    for (int i = 0; i < samples; i++) {
+        int32_t value = bit32_buffer[i] >> 12;
+        dest[i] = (value > INT16_MAX) ? INT16_MAX : (value < -INT16_MAX) ? -INT16_MAX : (int16_t)value;
+    }
+    return samples;
+}
+
+int NoAudioCodecSimplexPdm::Read(int16_t* dest, int samples) {
+    size_t bytes_read;
+
+    // PDM 解调后的数据位宽为 16 位，直接读取到目标缓冲区
+    if (i2s_channel_read(rx_handle_, dest, samples * sizeof(int16_t), &bytes_read, portMAX_DELAY) != ESP_OK) {
+        ESP_LOGE(TAG, "Read Failed!");
+        return 0;
+    }
+
+    // 计算实际读取的样本数
+    return bytes_read / sizeof(int16_t);
+}

main/audio/codecs/no_audio_codec.h

@@ -0,0 +1,38 @@
+#ifndef _NO_AUDIO_CODEC_H
+#define _NO_AUDIO_CODEC_H
+
+#include "audio_codec.h"
+
+#include <driver/gpio.h>
+#include <driver/i2s_pdm.h>
+#include <mutex>
+
+class NoAudioCodec : public AudioCodec {
+protected:
+    std::mutex data_if_mutex_;
+
+    virtual int Write(const int16_t* data, int samples) override;
+    virtual int Read(int16_t* dest, int samples) override;
+
+public:
+    virtual ~NoAudioCodec();
+};
+
+class NoAudioCodecDuplex : public NoAudioCodec {
+public:
+    NoAudioCodecDuplex(int input_sample_rate, int output_sample_rate, gpio_num_t bclk, gpio_num_t ws, gpio_num_t dout, gpio_num_t din);
+};
+
+class NoAudioCodecSimplex : public NoAudioCodec {
+public:
+    NoAudioCodecSimplex(int input_sample_rate, int output_sample_rate, gpio_num_t spk_bclk, gpio_num_t spk_ws, gpio_num_t spk_dout, gpio_num_t mic_sck, gpio_num_t mic_ws, gpio_num_t mic_din);
+    NoAudioCodecSimplex(int input_sample_rate, int output_sample_rate, gpio_num_t spk_bclk, gpio_num_t spk_ws, gpio_num_t spk_dout, i2s_std_slot_mask_t spk_slot_mask, gpio_num_t mic_sck, gpio_num_t mic_ws, gpio_num_t mic_din, i2s_std_slot_mask_t mic_slot_mask);
+};
+
+class NoAudioCodecSimplexPdm : public NoAudioCodec {
+public:
+    NoAudioCodecSimplexPdm(int input_sample_rate, int output_sample_rate, gpio_num_t spk_bclk, gpio_num_t spk_ws, gpio_num_t spk_dout, gpio_num_t mic_sck,  gpio_num_t mic_din);
+    int Read(int16_t* dest, int samples);
+};
+
+#endif // _NO_AUDIO_CODEC_H