Flipper/Applications/Official/source-OLDER/kyhwana/dtmf_dolphin/dtmf_dolphin_audio.h

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2022-12-29 06:30:12 +00:00
#pragma once
// #include "dtmf_dolphin_i.h"
#include "dtmf_dolphin_event.h"
#include "dtmf_dolphin_hal.h"
#define SAMPLE_BUFFER_LENGTH 8192
#define PERIOD_2_PI 6.2832
#define CPU_CLOCK_FREQ 64000000
typedef struct {
float cached_freq;
size_t period;
float* lookup_table;
uint16_t offset;
} DTMFDolphinOsc;
typedef struct {
float duration;
size_t period;
bool* lookup_table;
uint16_t offset;
} DTMFDolphinPulseFilter;
typedef struct {
size_t buffer_length;
size_t half_buffer_length;
uint8_t* buffer_buffer;
uint16_t* sample_buffer;
float volume;
FuriMessageQueue* queue;
DTMFDolphinOsc* osc1;
DTMFDolphinOsc* osc2;
DTMFDolphinPulseFilter* filter;
bool playing;
} DTMFDolphinAudio;
DTMFDolphinOsc* dtmf_dolphin_osc_alloc();
DTMFDolphinAudio* dtmf_dolphin_audio_alloc();
void dtmf_dolphin_audio_free(DTMFDolphinAudio* player);
void dtmf_dolphin_osc_free(DTMFDolphinOsc* osc);
bool dtmf_dolphin_audio_play_tones(
float freq1,
float freq2,
uint16_t pulses,
uint16_t pulse_ms,
uint16_t gap_ms);
bool dtmf_dolphin_audio_stop_tones();
bool dtmf_dolphin_audio_handle_tick();