kxkmandClaude Sonnet 4.6
defc5eba2d
Previous commit only formatted 3 files; CI checks all 27 files in src/, include/, test/. Format the full set to clear firmware-lint. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
29 lines
901 B
C++
29 lines
901 B
C++
#pragma once
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#include <cstdint>
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#include <driver/i2s_std.h>
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#include <vector>
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/// I2S microphone capture only (ICS-43434 on the Waveshare board).
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/// Uses the new I2S channel driver (ESP-IDF 5.x) to avoid conflicts
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/// with the ESP32-audioI2S library (RadioPlayer) which also uses it.
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class I2sMic {
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public:
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/// Initialise I2S1 for mic capture.
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/// Default pins for Waveshare ESP32-S3-LCD-1.85: SCK=15, WS=2, SD=39
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bool Begin(int sck = 15, int ws = 2, int sd = 39, int sample_rate = 16000);
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/// Record duration_ms of audio → complete WAV buffer (44-byte header + PCM).
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bool Capture(std::vector<uint8_t> &wav_out, uint32_t duration_ms);
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void End();
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int sample_rate() const { return sample_rate_; }
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private:
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static void WriteWavHeader(uint8_t *dest, uint32_t pcm_bytes, int sr);
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int sample_rate_ = 16000;
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bool installed_ = false;
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i2s_chan_handle_t rx_handle_ = nullptr;
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};
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