mirror of
https://github.com/DarkFlippers/unleashed-firmware
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55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
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#pragma once
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// #include "dtmf_dolphin_i.h"
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#include "dtmf_dolphin_event.h"
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#include "dtmf_dolphin_hal.h"
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#define SAMPLE_BUFFER_LENGTH 8192
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#define PERIOD_2_PI 6.2832
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#define CPU_CLOCK_FREQ 64000000
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typedef struct {
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float cached_freq;
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size_t period;
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float* lookup_table;
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uint16_t offset;
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} DTMFDolphinOsc;
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typedef struct {
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float duration;
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size_t period;
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bool* lookup_table;
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uint16_t offset;
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} DTMFDolphinPulseFilter;
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typedef struct {
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size_t buffer_length;
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size_t half_buffer_length;
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uint8_t* buffer_buffer;
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uint16_t* sample_buffer;
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float volume;
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FuriMessageQueue* queue;
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DTMFDolphinOsc* osc1;
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DTMFDolphinOsc* osc2;
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DTMFDolphinPulseFilter* filter;
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bool playing;
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} DTMFDolphinAudio;
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DTMFDolphinOsc* dtmf_dolphin_osc_alloc();
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DTMFDolphinAudio* dtmf_dolphin_audio_alloc();
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void dtmf_dolphin_audio_free(DTMFDolphinAudio* player);
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void dtmf_dolphin_osc_free(DTMFDolphinOsc* osc);
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bool dtmf_dolphin_audio_play_tones(
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float freq1,
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float freq2,
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uint16_t pulses,
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uint16_t pulse_ms,
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uint16_t gap_ms);
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bool dtmf_dolphin_audio_stop_tones();
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bool dtmf_dolphin_audio_handle_tick();
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