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WIP: audio module still does not work, but enabled for all regions where audio is permitted.

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This commit is contained in:
Thomas Göttgens
2022-11-29 11:22:18 +01:00
parent 0dff05e881
commit 4d32f7c5ad
6 changed files with 167 additions and 124 deletions
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59
src/modules/esp32/AudioModule.h
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@@ -7,38 +7,45 @@
#include <Arduino.h>
#include <driver/adc.h>
#include <functional>
#if defined(ARCH_ESP32) && defined(USE_SX1280)
#if defined(ARCH_ESP32)
#include <codec2.h>
#include <ButterworthFilter.h>
#include <FastAudioFIFO.h>
#endif
#define ADC_BUFFER_SIZE 320 // 40ms of voice in 8KHz sampling frequency
#define ENCODE_FRAME_SIZE 40 // 5 codec2 frames of 8 bytes each
#define ENCODE_CODEC2_SIZE 8
#define ENCODE_FRAME_SIZE (ENCODE_CODEC2_SIZE * 5) // 5 codec2 frames of 8 bytes each
class Codec2Thread : public concurrency::NotifiedWorkerThread
{
#if defined(ARCH_ESP32)
struct CODEC2* codec2_state = NULL;
int16_t output_buffer[ADC_BUFFER_SIZE] = {};
public:
Codec2Thread();
protected:
virtual void onNotify(uint32_t notification) override;
#endif
};
class AudioModule : public SinglePortModule, private concurrency::OSThread
{
#if defined(ARCH_ESP32) && defined(USE_SX1280)
bool firstTime = 1;
#if defined(ARCH_ESP32)
bool firstTime = true;
hw_timer_t* adcTimer = NULL;
uint16_t adc_buffer[ADC_BUFFER_SIZE] = {};
int16_t speech[ADC_BUFFER_SIZE] = {};
int16_t output_buffer[ADC_BUFFER_SIZE] = {};
unsigned char rx_encode_frame[ENCODE_FRAME_SIZE] = {};
unsigned char tx_encode_frame[ENCODE_FRAME_SIZE] = {};
int tx_encode_frame_index = 0;
FastAudioFIFO audio_fifo;
uint16_t adc_buffer_index = 0;
adc1_channel_t mic_chan = (adc1_channel_t)0;
struct CODEC2* codec2_state = NULL;
enum State
{
standby, rx, tx
};
volatile State state = State::tx;
public:
unsigned char rx_encode_frame[ENCODE_FRAME_SIZE] = {};
unsigned char tx_encode_frame[ENCODE_FRAME_SIZE] = {};
int tx_encode_frame_index = 0;
AudioModule();
/**
@@ -49,11 +56,7 @@ class AudioModule : public SinglePortModule, private concurrency::OSThread
protected:
virtual int32_t runOnce() override;
static void handleInterrupt();
void onTimer();
void run_codec2();
// void run_codec2();
virtual MeshPacket *allocReply() override;
@@ -65,4 +68,16 @@ class AudioModule : public SinglePortModule, private concurrency::OSThread
};
extern AudioModule *audioModule;
extern Codec2Thread *codec2Thread;
extern FastAudioFIFO audio_fifo;
extern uint16_t adc_buffer[ADC_BUFFER_SIZE];
extern uint16_t adc_buffer_index;
extern portMUX_TYPE timerMux;
extern int16_t speech[ADC_BUFFER_SIZE];
enum RadioState { standby, rx, tx };
extern volatile RadioState radio_state;
extern adc1_channel_t mic_chan;
IRAM_ATTR void am_onTimer();