151 lines
4.6 KiB
C++
151 lines
4.6 KiB
C++
#include "audio_codec.h"
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#include "board.h"
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#include "settings.h"
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#include <esp_log.h>
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#include <cstring>
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#include <driver/i2s_common.h>
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#define TAG "AudioCodec"
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AudioCodec::AudioCodec() {
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}
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AudioCodec::~AudioCodec() {
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}
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void AudioCodec::OutputData(std::vector<int16_t>& data) {
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Write(data.data(), data.size());
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}
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bool AudioCodec::InputData(std::vector<int16_t>& data) {
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int samples = Read(data.data(), data.size());
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if (samples > 0) {
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return true;
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}
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return false;
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}
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void AudioCodec::Start() {
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Settings settings("audio", false);
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output_volume_ = settings.GetInt("output_volume", output_volume_);
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if (output_volume_ <= 0) {
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ESP_LOGW(TAG, "Output volume value (%d) is too small, setting to default (10)", output_volume_);
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output_volume_ = 10;
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}
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// 保存原始输出采样率
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if (original_output_sample_rate_ == 0){
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original_output_sample_rate_ = output_sample_rate_;
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ESP_LOGI(TAG, "Saved original output sample rate: %d Hz", original_output_sample_rate_);
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}
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if (tx_handle_ != nullptr) {
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ESP_ERROR_CHECK(i2s_channel_enable(tx_handle_));
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}
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if (rx_handle_ != nullptr) {
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ESP_ERROR_CHECK(i2s_channel_enable(rx_handle_));
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}
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EnableInput(true);
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EnableOutput(true);
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ESP_LOGI(TAG, "Audio codec started");
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}
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void AudioCodec::SetOutputVolume(int volume) {
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output_volume_ = volume;
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ESP_LOGI(TAG, "Set output volume to %d", output_volume_);
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Settings settings("audio", true);
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settings.SetInt("output_volume", output_volume_);
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}
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void AudioCodec::EnableInput(bool enable) {
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if (enable == input_enabled_) {
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return;
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}
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input_enabled_ = enable;
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ESP_LOGI(TAG, "Set input enable to %s", enable ? "true" : "false");
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}
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void AudioCodec::EnableOutput(bool enable) {
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if (enable == output_enabled_) {
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return;
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}
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output_enabled_ = enable;
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ESP_LOGI(TAG, "Set output enable to %s", enable ? "true" : "false");
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}
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bool AudioCodec::SetOutputSampleRate(int sample_rate) {
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// 特殊处理：如果传入 -1，表示重置到原始采样率
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if (sample_rate == -1) {
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if (original_output_sample_rate_ > 0) {
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sample_rate = original_output_sample_rate_;
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ESP_LOGI(TAG, "Resetting to original output sample rate: %d Hz", sample_rate);
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} else {
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ESP_LOGW(TAG, "Original sample rate not available, cannot reset");
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return false;
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}
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}
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if (sample_rate <= 0 || sample_rate > 192000) {
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ESP_LOGE(TAG, "Invalid sample rate: %d", sample_rate);
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return false;
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}
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if (output_sample_rate_ == sample_rate) {
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ESP_LOGI(TAG, "Sample rate already set to %d Hz", sample_rate);
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return true;
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}
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if (tx_handle_ == nullptr) {
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ESP_LOGW(TAG, "TX handle is null, only updating sample rate variable");
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output_sample_rate_ = sample_rate;
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return true;
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}
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ESP_LOGI(TAG, "Changing output sample rate from %d to %d Hz", output_sample_rate_, sample_rate);
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// 先尝试禁用 I2S 通道（如果已启用的话）
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bool was_enabled = false;
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esp_err_t disable_ret = i2s_channel_disable(tx_handle_);
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if (disable_ret == ESP_OK) {
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was_enabled = true;
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ESP_LOGI(TAG, "Disabled I2S TX channel for reconfiguration");
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} else if (disable_ret == ESP_ERR_INVALID_STATE) {
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// 通道可能已经是禁用状态，这是正常的
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ESP_LOGI(TAG, "I2S TX channel was already disabled");
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} else {
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ESP_LOGW(TAG, "Failed to disable I2S TX channel: %s", esp_err_to_name(disable_ret));
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}
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// 重新配置 I2S 时钟
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i2s_std_clk_config_t clk_cfg = {
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.sample_rate_hz = (uint32_t)sample_rate,
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.clk_src = I2S_CLK_SRC_DEFAULT,
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.mclk_multiple = I2S_MCLK_MULTIPLE_256,
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#ifdef I2S_HW_VERSION_2
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.ext_clk_freq_hz = 0,
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#endif
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};
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esp_err_t ret = i2s_channel_reconfig_std_clock(tx_handle_, &clk_cfg);
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// 重新启用通道（无论之前是什么状态，现在都需要启用以便播放音频）
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esp_err_t enable_ret = i2s_channel_enable(tx_handle_);
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if (enable_ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to enable I2S TX channel: %s", esp_err_to_name(enable_ret));
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} else {
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ESP_LOGI(TAG, "Enabled I2S TX channel");
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}
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if (ret == ESP_OK) {
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output_sample_rate_ = sample_rate;
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ESP_LOGI(TAG, "Successfully changed output sample rate to %d Hz", sample_rate);
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return true;
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} else {
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ESP_LOGE(TAG, "Failed to change sample rate to %d Hz: %s", sample_rate, esp_err_to_name(ret));
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return false;
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}
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} |