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Code Issues Releases Wiki Activity

[i2s_audio] Add more options to speakers and microphones (#7306)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
[pʲɵs]
2024-09-11 07:12:20 +02:00
committed by GitHub
parent dbecade122
commit 04248b6840
18 changed files with 136 additions and 81 deletions
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33
esphome/components/i2s_audio/microphone/i2s_audio_microphone.cpp
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@@ -58,7 +58,7 @@ void I2SAudioMicrophone::start_() {
.tx_desc_auto_clear = false,
.fixed_mclk = 0,
.mclk_multiple = I2S_MCLK_MULTIPLE_256,
.bits_per_chan = I2S_BITS_PER_CHAN_DEFAULT,
.bits_per_chan = this->bits_per_channel_,
};
esp_err_t err;
@@ -167,21 +167,24 @@ size_t I2SAudioMicrophone::read(int16_t *buf, size_t len) {
return 0;
}
this->status_clear_warning();
if (this->bits_per_sample_ == I2S_BITS_PER_SAMPLE_16BIT) {
return bytes_read;
} else if (this->bits_per_sample_ == I2S_BITS_PER_SAMPLE_32BIT) {
std::vector<int16_t> samples;
size_t samples_read = bytes_read / sizeof(int32_t);
samples.resize(samples_read);
for (size_t i = 0; i < samples_read; i++) {
int32_t temp = reinterpret_cast<int32_t *>(buf)[i] >> 14;
samples[i] = clamp<int16_t>(temp, INT16_MIN, INT16_MAX);
// ESP-IDF I2S implementation right-extends 8-bit data to 16 bits,
// and 24-bit data to 32 bits.
switch (this->bits_per_sample_) {
case I2S_BITS_PER_SAMPLE_8BIT:
case I2S_BITS_PER_SAMPLE_16BIT:
return bytes_read;
case I2S_BITS_PER_SAMPLE_24BIT:
case I2S_BITS_PER_SAMPLE_32BIT: {
size_t samples_read = bytes_read / sizeof(int32_t);
for (size_t i = 0; i < samples_read; i++) {
int32_t temp = reinterpret_cast<int32_t *>(buf)[i] >> 14;
buf[i] = clamp<int16_t>(temp, INT16_MIN, INT16_MAX);
}
return samples_read * sizeof(int16_t);
}
memcpy(buf, samples.data(), samples_read * sizeof(int16_t));
return samples_read * sizeof(int16_t);
} else {
ESP_LOGE(TAG, "Unsupported bits per sample: %d", this->bits_per_sample_);
return 0;
default:
ESP_LOGE(TAG, "Unsupported bits per sample: %d", this->bits_per_sample_);
return 0;
}
}