mirror of
https://github.com/esphome/esphome.git
synced 2025-04-18 16:50:28 +01:00
486 lines
19 KiB
C++
486 lines
19 KiB
C++
#include "i2s_audio_speaker.h"
|
|
|
|
#ifdef USE_ESP32
|
|
|
|
#include <driver/i2s.h>
|
|
|
|
#include "esphome/components/audio/audio.h"
|
|
|
|
#include "esphome/core/application.h"
|
|
#include "esphome/core/hal.h"
|
|
#include "esphome/core/log.h"
|
|
|
|
namespace esphome {
|
|
namespace i2s_audio {
|
|
|
|
static const size_t DMA_BUFFER_SIZE = 512;
|
|
static const size_t DMA_BUFFERS_COUNT = 4;
|
|
static const size_t FRAMES_IN_ALL_DMA_BUFFERS = DMA_BUFFER_SIZE * DMA_BUFFERS_COUNT;
|
|
static const size_t RING_BUFFER_SAMPLES = 8192;
|
|
static const size_t TASK_DELAY_MS = 10;
|
|
static const size_t TASK_STACK_SIZE = 4096;
|
|
static const ssize_t TASK_PRIORITY = 23;
|
|
|
|
static const char *const TAG = "i2s_audio.speaker";
|
|
|
|
enum SpeakerEventGroupBits : uint32_t {
|
|
COMMAND_START = (1 << 0), // Starts the main task purpose
|
|
COMMAND_STOP = (1 << 1), // stops the main task
|
|
COMMAND_STOP_GRACEFULLY = (1 << 2), // Stops the task once all data has been written
|
|
MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE = (1 << 5), // Locks the ring buffer when not set
|
|
STATE_STARTING = (1 << 10),
|
|
STATE_RUNNING = (1 << 11),
|
|
STATE_STOPPING = (1 << 12),
|
|
STATE_STOPPED = (1 << 13),
|
|
ERR_TASK_FAILED_TO_START = (1 << 15),
|
|
ERR_ESP_INVALID_STATE = (1 << 16),
|
|
ERR_ESP_INVALID_ARG = (1 << 17),
|
|
ERR_ESP_INVALID_SIZE = (1 << 18),
|
|
ERR_ESP_NO_MEM = (1 << 19),
|
|
ERR_ESP_FAIL = (1 << 20),
|
|
ALL_ERR_ESP_BITS = ERR_ESP_INVALID_STATE | ERR_ESP_INVALID_ARG | ERR_ESP_INVALID_SIZE | ERR_ESP_NO_MEM | ERR_ESP_FAIL,
|
|
ALL_BITS = 0x00FFFFFF, // All valid FreeRTOS event group bits
|
|
};
|
|
|
|
// Translates a SpeakerEventGroupBits ERR_ESP bit to the coressponding esp_err_t
|
|
static esp_err_t err_bit_to_esp_err(uint32_t bit) {
|
|
switch (bit) {
|
|
case SpeakerEventGroupBits::ERR_ESP_INVALID_STATE:
|
|
return ESP_ERR_INVALID_STATE;
|
|
case SpeakerEventGroupBits::ERR_ESP_INVALID_ARG:
|
|
return ESP_ERR_INVALID_ARG;
|
|
case SpeakerEventGroupBits::ERR_ESP_INVALID_SIZE:
|
|
return ESP_ERR_INVALID_SIZE;
|
|
case SpeakerEventGroupBits::ERR_ESP_NO_MEM:
|
|
return ESP_ERR_NO_MEM;
|
|
default:
|
|
return ESP_FAIL;
|
|
}
|
|
}
|
|
|
|
/// @brief Multiplies the input array of Q15 numbers by a Q15 constant factor
|
|
///
|
|
/// Based on `dsps_mulc_s16_ansi` from the esp-dsp library:
|
|
/// https://github.com/espressif/esp-dsp/blob/master/modules/math/mulc/fixed/dsps_mulc_s16_ansi.c
|
|
/// (accessed on 2024-09-30).
|
|
/// @param input Array of Q15 numbers
|
|
/// @param output Array of Q15 numbers
|
|
/// @param len Length of array
|
|
/// @param c Q15 constant factor
|
|
static void q15_multiplication(const int16_t *input, int16_t *output, size_t len, int16_t c) {
|
|
for (int i = 0; i < len; i++) {
|
|
int32_t acc = (int32_t) input[i] * (int32_t) c;
|
|
output[i] = (int16_t) (acc >> 15);
|
|
}
|
|
}
|
|
|
|
// Lists the Q15 fixed point scaling factor for volume reduction.
|
|
// Has 100 values representing silence and a reduction [49, 48.5, ... 0.5, 0] dB.
|
|
// dB to PCM scaling factor formula: floating_point_scale_factor = 2^(-db/6.014)
|
|
// float to Q15 fixed point formula: q15_scale_factor = floating_point_scale_factor * 2^(15)
|
|
static const std::vector<int16_t> Q15_VOLUME_SCALING_FACTORS = {
|
|
0, 116, 122, 130, 137, 146, 154, 163, 173, 183, 194, 206, 218, 231, 244,
|
|
259, 274, 291, 308, 326, 345, 366, 388, 411, 435, 461, 488, 517, 548, 580,
|
|
615, 651, 690, 731, 774, 820, 868, 920, 974, 1032, 1094, 1158, 1227, 1300, 1377,
|
|
1459, 1545, 1637, 1734, 1837, 1946, 2061, 2184, 2313, 2450, 2596, 2750, 2913, 3085, 3269,
|
|
3462, 3668, 3885, 4116, 4360, 4619, 4893, 5183, 5490, 5816, 6161, 6527, 6914, 7324, 7758,
|
|
8218, 8706, 9222, 9770, 10349, 10963, 11613, 12302, 13032, 13805, 14624, 15491, 16410, 17384, 18415,
|
|
19508, 20665, 21891, 23189, 24565, 26022, 27566, 29201, 30933, 32767};
|
|
|
|
void I2SAudioSpeaker::setup() {
|
|
ESP_LOGCONFIG(TAG, "Setting up I2S Audio Speaker...");
|
|
|
|
if (this->event_group_ == nullptr) {
|
|
this->event_group_ = xEventGroupCreate();
|
|
}
|
|
|
|
if (this->event_group_ == nullptr) {
|
|
ESP_LOGE(TAG, "Failed to create event group");
|
|
this->mark_failed();
|
|
return;
|
|
}
|
|
}
|
|
|
|
void I2SAudioSpeaker::loop() {
|
|
uint32_t event_group_bits = xEventGroupGetBits(this->event_group_);
|
|
|
|
if (event_group_bits & SpeakerEventGroupBits::ERR_TASK_FAILED_TO_START) {
|
|
this->status_set_error("Failed to start speaker task");
|
|
}
|
|
|
|
if (event_group_bits & SpeakerEventGroupBits::ALL_ERR_ESP_BITS) {
|
|
uint32_t error_bits = event_group_bits & SpeakerEventGroupBits::ALL_ERR_ESP_BITS;
|
|
ESP_LOGW(TAG, "Error writing to I2S: %s", esp_err_to_name(err_bit_to_esp_err(error_bits)));
|
|
this->status_set_warning();
|
|
}
|
|
|
|
if (event_group_bits & SpeakerEventGroupBits::STATE_STARTING) {
|
|
ESP_LOGD(TAG, "Starting Speaker");
|
|
this->state_ = speaker::STATE_STARTING;
|
|
xEventGroupClearBits(this->event_group_, SpeakerEventGroupBits::STATE_STARTING);
|
|
}
|
|
if (event_group_bits & SpeakerEventGroupBits::STATE_RUNNING) {
|
|
ESP_LOGD(TAG, "Started Speaker");
|
|
this->state_ = speaker::STATE_RUNNING;
|
|
xEventGroupClearBits(this->event_group_, SpeakerEventGroupBits::STATE_RUNNING);
|
|
this->status_clear_warning();
|
|
this->status_clear_error();
|
|
}
|
|
if (event_group_bits & SpeakerEventGroupBits::STATE_STOPPING) {
|
|
ESP_LOGD(TAG, "Stopping Speaker");
|
|
this->state_ = speaker::STATE_STOPPING;
|
|
xEventGroupClearBits(this->event_group_, SpeakerEventGroupBits::STATE_STOPPING);
|
|
}
|
|
if (event_group_bits & SpeakerEventGroupBits::STATE_STOPPED) {
|
|
if (!this->task_created_) {
|
|
ESP_LOGD(TAG, "Stopped Speaker");
|
|
this->state_ = speaker::STATE_STOPPED;
|
|
xEventGroupClearBits(this->event_group_, SpeakerEventGroupBits::ALL_BITS);
|
|
this->speaker_task_handle_ = nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
void I2SAudioSpeaker::set_volume(float volume) {
|
|
this->volume_ = volume;
|
|
ssize_t decibel_index = remap<ssize_t, float>(volume, 0.0f, 1.0f, 0, Q15_VOLUME_SCALING_FACTORS.size() - 1);
|
|
this->q15_volume_factor_ = Q15_VOLUME_SCALING_FACTORS[decibel_index];
|
|
}
|
|
|
|
size_t I2SAudioSpeaker::play(const uint8_t *data, size_t length, TickType_t ticks_to_wait) {
|
|
if (this->is_failed()) {
|
|
ESP_LOGE(TAG, "Cannot play audio, speaker failed to setup");
|
|
return 0;
|
|
}
|
|
if (this->state_ != speaker::STATE_RUNNING && this->state_ != speaker::STATE_STARTING) {
|
|
this->start();
|
|
}
|
|
|
|
// Wait for the ring buffer to be available
|
|
uint32_t event_bits =
|
|
xEventGroupWaitBits(this->event_group_, SpeakerEventGroupBits::MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE, pdFALSE,
|
|
pdFALSE, pdMS_TO_TICKS(TASK_DELAY_MS));
|
|
|
|
if (event_bits & SpeakerEventGroupBits::MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE) {
|
|
// Ring buffer is available to write
|
|
|
|
// Lock the ring buffer, write to it, then unlock it
|
|
xEventGroupClearBits(this->event_group_, SpeakerEventGroupBits::MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE);
|
|
size_t bytes_written = this->audio_ring_buffer_->write_without_replacement((void *) data, length, ticks_to_wait);
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE);
|
|
|
|
return bytes_written;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool I2SAudioSpeaker::has_buffered_data() const {
|
|
if (this->audio_ring_buffer_ != nullptr) {
|
|
return this->audio_ring_buffer_->available() > 0;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void I2SAudioSpeaker::speaker_task(void *params) {
|
|
I2SAudioSpeaker *this_speaker = (I2SAudioSpeaker *) params;
|
|
uint32_t event_group_bits =
|
|
xEventGroupWaitBits(this_speaker->event_group_,
|
|
SpeakerEventGroupBits::COMMAND_START | SpeakerEventGroupBits::COMMAND_STOP |
|
|
SpeakerEventGroupBits::COMMAND_STOP_GRACEFULLY, // Bit message to read
|
|
pdTRUE, // Clear the bits on exit
|
|
pdFALSE, // Don't wait for all the bits,
|
|
portMAX_DELAY); // Block indefinitely until a bit is set
|
|
|
|
if (event_group_bits & (SpeakerEventGroupBits::COMMAND_STOP | SpeakerEventGroupBits::COMMAND_STOP_GRACEFULLY)) {
|
|
// Received a stop signal before the task was requested to start
|
|
this_speaker->delete_task_(0);
|
|
}
|
|
|
|
xEventGroupSetBits(this_speaker->event_group_, SpeakerEventGroupBits::STATE_STARTING);
|
|
|
|
audio::AudioStreamInfo audio_stream_info = this_speaker->audio_stream_info_;
|
|
const ssize_t bytes_per_sample = audio_stream_info.get_bytes_per_sample();
|
|
const uint8_t number_of_channels = audio_stream_info.channels;
|
|
|
|
const size_t dma_buffers_size = FRAMES_IN_ALL_DMA_BUFFERS * bytes_per_sample * number_of_channels;
|
|
|
|
if (this_speaker->send_esp_err_to_event_group_(
|
|
this_speaker->allocate_buffers_(dma_buffers_size, RING_BUFFER_SAMPLES * bytes_per_sample))) {
|
|
// Failed to allocate buffers
|
|
xEventGroupSetBits(this_speaker->event_group_, SpeakerEventGroupBits::ERR_ESP_NO_MEM);
|
|
this_speaker->delete_task_(dma_buffers_size);
|
|
}
|
|
|
|
if (this_speaker->send_esp_err_to_event_group_(this_speaker->start_i2s_driver_())) {
|
|
// Failed to start I2S driver
|
|
this_speaker->delete_task_(dma_buffers_size);
|
|
} else {
|
|
// Ring buffer is allocated, so indicate its can be written to
|
|
xEventGroupSetBits(this_speaker->event_group_, SpeakerEventGroupBits::MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE);
|
|
}
|
|
|
|
if (!this_speaker->send_esp_err_to_event_group_(this_speaker->reconfigure_i2s_stream_info_(audio_stream_info))) {
|
|
// Successfully set the I2S stream info, ready to write audio data to the I2S port
|
|
|
|
xEventGroupSetBits(this_speaker->event_group_, SpeakerEventGroupBits::STATE_RUNNING);
|
|
|
|
bool stop_gracefully = false;
|
|
uint32_t last_data_received_time = millis();
|
|
|
|
while ((millis() - last_data_received_time) <= this_speaker->timeout_) {
|
|
event_group_bits = xEventGroupGetBits(this_speaker->event_group_);
|
|
|
|
if (event_group_bits & SpeakerEventGroupBits::COMMAND_STOP) {
|
|
break;
|
|
}
|
|
if (event_group_bits & SpeakerEventGroupBits::COMMAND_STOP_GRACEFULLY) {
|
|
stop_gracefully = true;
|
|
}
|
|
|
|
size_t bytes_to_read = dma_buffers_size;
|
|
size_t bytes_read = this_speaker->audio_ring_buffer_->read((void *) this_speaker->data_buffer_, bytes_to_read,
|
|
pdMS_TO_TICKS(TASK_DELAY_MS));
|
|
|
|
if (bytes_read > 0) {
|
|
last_data_received_time = millis();
|
|
size_t bytes_written = 0;
|
|
|
|
if ((audio_stream_info.bits_per_sample == 16) && (this_speaker->q15_volume_factor_ < INT16_MAX)) {
|
|
// Scale samples by the volume factor in place
|
|
q15_multiplication((int16_t *) this_speaker->data_buffer_, (int16_t *) this_speaker->data_buffer_,
|
|
bytes_read / sizeof(int16_t), this_speaker->q15_volume_factor_);
|
|
}
|
|
|
|
if (audio_stream_info.bits_per_sample == (uint8_t) this_speaker->bits_per_sample_) {
|
|
i2s_write(this_speaker->parent_->get_port(), this_speaker->data_buffer_, bytes_read, &bytes_written,
|
|
portMAX_DELAY);
|
|
} else if (audio_stream_info.bits_per_sample < (uint8_t) this_speaker->bits_per_sample_) {
|
|
i2s_write_expand(this_speaker->parent_->get_port(), this_speaker->data_buffer_, bytes_read,
|
|
audio_stream_info.bits_per_sample, this_speaker->bits_per_sample_, &bytes_written,
|
|
portMAX_DELAY);
|
|
}
|
|
|
|
if (bytes_written != bytes_read) {
|
|
xEventGroupSetBits(this_speaker->event_group_, SpeakerEventGroupBits::ERR_ESP_INVALID_SIZE);
|
|
}
|
|
|
|
} else {
|
|
// No data received
|
|
|
|
if (stop_gracefully) {
|
|
break;
|
|
}
|
|
|
|
i2s_zero_dma_buffer(this_speaker->parent_->get_port());
|
|
}
|
|
}
|
|
}
|
|
i2s_zero_dma_buffer(this_speaker->parent_->get_port());
|
|
|
|
xEventGroupSetBits(this_speaker->event_group_, SpeakerEventGroupBits::STATE_STOPPING);
|
|
|
|
i2s_stop(this_speaker->parent_->get_port());
|
|
i2s_driver_uninstall(this_speaker->parent_->get_port());
|
|
|
|
this_speaker->parent_->unlock();
|
|
this_speaker->delete_task_(dma_buffers_size);
|
|
}
|
|
|
|
void I2SAudioSpeaker::start() {
|
|
if (this->is_failed())
|
|
return;
|
|
if ((this->state_ == speaker::STATE_STARTING) || (this->state_ == speaker::STATE_RUNNING))
|
|
return;
|
|
|
|
if (this->speaker_task_handle_ == nullptr) {
|
|
xTaskCreate(I2SAudioSpeaker::speaker_task, "speaker_task", TASK_STACK_SIZE, (void *) this, TASK_PRIORITY,
|
|
&this->speaker_task_handle_);
|
|
}
|
|
|
|
if (this->speaker_task_handle_ != nullptr) {
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::COMMAND_START);
|
|
this->task_created_ = true;
|
|
} else {
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::ERR_TASK_FAILED_TO_START);
|
|
}
|
|
}
|
|
|
|
void I2SAudioSpeaker::stop() { this->stop_(false); }
|
|
|
|
void I2SAudioSpeaker::finish() { this->stop_(true); }
|
|
|
|
void I2SAudioSpeaker::stop_(bool wait_on_empty) {
|
|
if (this->is_failed())
|
|
return;
|
|
if (this->state_ == speaker::STATE_STOPPED)
|
|
return;
|
|
|
|
if (wait_on_empty) {
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::COMMAND_STOP_GRACEFULLY);
|
|
} else {
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::COMMAND_STOP);
|
|
}
|
|
}
|
|
|
|
bool I2SAudioSpeaker::send_esp_err_to_event_group_(esp_err_t err) {
|
|
switch (err) {
|
|
case ESP_OK:
|
|
return false;
|
|
case ESP_ERR_INVALID_STATE:
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::ERR_ESP_INVALID_STATE);
|
|
return true;
|
|
case ESP_ERR_INVALID_ARG:
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::ERR_ESP_INVALID_ARG);
|
|
return true;
|
|
case ESP_ERR_INVALID_SIZE:
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::ERR_ESP_INVALID_SIZE);
|
|
return true;
|
|
case ESP_ERR_NO_MEM:
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::ERR_ESP_NO_MEM);
|
|
return true;
|
|
default:
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::ERR_ESP_FAIL);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
esp_err_t I2SAudioSpeaker::allocate_buffers_(size_t data_buffer_size, size_t ring_buffer_size) {
|
|
if (this->data_buffer_ == nullptr) {
|
|
// Allocate data buffer for temporarily storing audio from the ring buffer before writing to the I2S bus
|
|
ExternalRAMAllocator<uint8_t> allocator(ExternalRAMAllocator<uint8_t>::ALLOW_FAILURE);
|
|
this->data_buffer_ = allocator.allocate(data_buffer_size);
|
|
}
|
|
|
|
if (this->data_buffer_ == nullptr) {
|
|
return ESP_ERR_NO_MEM;
|
|
}
|
|
|
|
if (this->audio_ring_buffer_ == nullptr) {
|
|
// Allocate ring buffer
|
|
this->audio_ring_buffer_ = RingBuffer::create(ring_buffer_size);
|
|
}
|
|
|
|
if (this->audio_ring_buffer_ == nullptr) {
|
|
return ESP_ERR_NO_MEM;
|
|
}
|
|
|
|
return ESP_OK;
|
|
}
|
|
|
|
esp_err_t I2SAudioSpeaker::start_i2s_driver_() {
|
|
if (!this->parent_->try_lock()) {
|
|
return ESP_ERR_INVALID_STATE;
|
|
}
|
|
|
|
i2s_driver_config_t config = {
|
|
.mode = (i2s_mode_t) (this->i2s_mode_ | I2S_MODE_TX),
|
|
.sample_rate = this->sample_rate_,
|
|
.bits_per_sample = this->bits_per_sample_,
|
|
.channel_format = this->channel_,
|
|
.communication_format = this->i2s_comm_fmt_,
|
|
.intr_alloc_flags = ESP_INTR_FLAG_LEVEL1,
|
|
.dma_buf_count = DMA_BUFFERS_COUNT,
|
|
.dma_buf_len = DMA_BUFFER_SIZE,
|
|
.use_apll = this->use_apll_,
|
|
.tx_desc_auto_clear = true,
|
|
.fixed_mclk = I2S_PIN_NO_CHANGE,
|
|
.mclk_multiple = I2S_MCLK_MULTIPLE_256,
|
|
.bits_per_chan = this->bits_per_channel_,
|
|
#if SOC_I2S_SUPPORTS_TDM
|
|
.chan_mask = (i2s_channel_t) (I2S_TDM_ACTIVE_CH0 | I2S_TDM_ACTIVE_CH1),
|
|
.total_chan = 2,
|
|
.left_align = false,
|
|
.big_edin = false,
|
|
.bit_order_msb = false,
|
|
.skip_msk = false,
|
|
#endif
|
|
};
|
|
#if SOC_I2S_SUPPORTS_DAC
|
|
if (this->internal_dac_mode_ != I2S_DAC_CHANNEL_DISABLE) {
|
|
config.mode = (i2s_mode_t) (config.mode | I2S_MODE_DAC_BUILT_IN);
|
|
}
|
|
#endif
|
|
|
|
esp_err_t err = i2s_driver_install(this->parent_->get_port(), &config, 0, nullptr);
|
|
if (err != ESP_OK) {
|
|
// Failed to install the driver, so unlock the I2S port
|
|
this->parent_->unlock();
|
|
return err;
|
|
}
|
|
|
|
#if SOC_I2S_SUPPORTS_DAC
|
|
if (this->internal_dac_mode_ == I2S_DAC_CHANNEL_DISABLE) {
|
|
#endif
|
|
i2s_pin_config_t pin_config = this->parent_->get_pin_config();
|
|
pin_config.data_out_num = this->dout_pin_;
|
|
|
|
err = i2s_set_pin(this->parent_->get_port(), &pin_config);
|
|
#if SOC_I2S_SUPPORTS_DAC
|
|
} else {
|
|
i2s_set_dac_mode(this->internal_dac_mode_);
|
|
}
|
|
#endif
|
|
|
|
if (err != ESP_OK) {
|
|
// Failed to set the data out pin, so uninstall the driver and unlock the I2S port
|
|
i2s_driver_uninstall(this->parent_->get_port());
|
|
this->parent_->unlock();
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
esp_err_t I2SAudioSpeaker::reconfigure_i2s_stream_info_(audio::AudioStreamInfo &audio_stream_info) {
|
|
if (this->i2s_mode_ & I2S_MODE_MASTER) {
|
|
// ESP controls for the the I2S bus, so adjust the sample rate and bits per sample to match the incoming audio
|
|
this->sample_rate_ = audio_stream_info.sample_rate;
|
|
this->bits_per_sample_ = (i2s_bits_per_sample_t) audio_stream_info.bits_per_sample;
|
|
} else if (this->sample_rate_ != audio_stream_info.sample_rate) {
|
|
// Can't reconfigure I2S bus, so the sample rate must match the configured value
|
|
return ESP_ERR_INVALID_ARG;
|
|
}
|
|
|
|
if ((i2s_bits_per_sample_t) audio_stream_info.bits_per_sample > this->bits_per_sample_) {
|
|
// Currently can't handle the case when the incoming audio has more bits per sample than the configured value
|
|
return ESP_ERR_INVALID_ARG;
|
|
}
|
|
|
|
if (audio_stream_info.channels == 1) {
|
|
return i2s_set_clk(this->parent_->get_port(), this->sample_rate_, this->bits_per_sample_, I2S_CHANNEL_MONO);
|
|
} else if (audio_stream_info.channels == 2) {
|
|
return i2s_set_clk(this->parent_->get_port(), this->sample_rate_, this->bits_per_sample_, I2S_CHANNEL_STEREO);
|
|
}
|
|
|
|
return ESP_ERR_INVALID_ARG;
|
|
}
|
|
|
|
void I2SAudioSpeaker::delete_task_(size_t buffer_size) {
|
|
if (this->audio_ring_buffer_ != nullptr) {
|
|
xEventGroupWaitBits(this->event_group_,
|
|
MESSAGE_RING_BUFFER_AVAILABLE_TO_WRITE, // Bit message to read
|
|
pdFALSE, // Don't clear the bits on exit
|
|
pdTRUE, // Don't wait for all the bits,
|
|
portMAX_DELAY); // Block indefinitely until a command bit is set
|
|
|
|
this->audio_ring_buffer_.reset(); // Deallocates the ring buffer stored in the unique_ptr
|
|
this->audio_ring_buffer_ = nullptr;
|
|
}
|
|
|
|
if (this->data_buffer_ != nullptr) {
|
|
ExternalRAMAllocator<uint8_t> allocator(ExternalRAMAllocator<uint8_t>::ALLOW_FAILURE);
|
|
allocator.deallocate(this->data_buffer_, buffer_size);
|
|
this->data_buffer_ = nullptr;
|
|
}
|
|
|
|
xEventGroupSetBits(this->event_group_, SpeakerEventGroupBits::STATE_STOPPED);
|
|
|
|
this->task_created_ = false;
|
|
vTaskDelete(nullptr);
|
|
}
|
|
|
|
} // namespace i2s_audio
|
|
} // namespace esphome
|
|
|
|
#endif // USE_ESP32
|