mirror of
https://github.com/eried/portapack-mayhem.git
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120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
/*
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* Copyright (C) 2020 Belousov Oleg
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*
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* This file is part of PortaPack.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __DSP_MODULATE_H__
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#define __DSP_MODULATE_H__
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#include "dsp_types.hpp"
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#include "dsp_hilbert.hpp"
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#include "tone_gen.hpp"
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#include "baseband_processor.hpp"
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namespace dsp {
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namespace modulate {
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enum class Mode {
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None,
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AM,
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DSB,
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LSB,
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USB,
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FM
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};
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///
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class Modulator {
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public:
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virtual void execute(const buffer_s16_t& audio, const buffer_c8_t& buffer,bool& configured_in, uint32_t& new_beep_index, uint32_t& new_beep_timer, TXProgressMessage& new_txprogress_message, AudioLevelReportMessage& new_level_message, uint32_t& new_power_acc_count, uint32_t& new_divider ) = 0;
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virtual ~Modulator();
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Mode get_mode();
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void set_mode(Mode new_mode);
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void set_over(uint32_t new_over);
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void set_gain_shiftbits_vumeter_beep(float new_audio_gain ,uint8_t new_audio_shift_bits_s16, bool new_play_beep );
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int32_t apply_beep(int32_t sample_in, bool& configured_in, uint32_t& new_beep_index, uint32_t& new_beep_timer, TXProgressMessage& new_txprogress_message );
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float audio_gain { };
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uint8_t audio_shift_bits_s16_FM { }; // shift bits factor to the captured ADC S16 audio sample.
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uint8_t audio_shift_bits_s16_AM_DSB_SSB { };
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bool play_beep { false };
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uint32_t power_acc_count { 0 }; // this var it is initialized from Proc_mictx.cpp
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uint32_t divider { }; // this var it is initialized from Proc_mictx.cpp
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uint64_t power_acc { 0 }; // it is aux Accumulated sum (Absolute sample signal) , initialitzed to zero.
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AudioLevelReportMessage level_message { };
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private:
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static constexpr size_t baseband_fs = 1536000U;
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TXProgressMessage txprogress_message { };
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ToneGen beep_gen { };
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uint32_t beep_index { }, beep_timer { };
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protected:
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uint32_t over = 1;
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Mode mode = Mode::None;
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};
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///
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class SSB : public Modulator {
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public:
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SSB();
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virtual void execute(const buffer_s16_t& audio, const buffer_c8_t& buffer, bool& configured_in, uint32_t& new_beep_index, uint32_t& new_beep_timer, TXProgressMessage& new_txprogress_message, AudioLevelReportMessage& new_level_message, uint32_t& new_power_acc_count, uint32_t& new_divider );
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private:
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dsp::HilbertTransform hilbert;
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};
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///
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class FM : public Modulator {
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public:
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FM();
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virtual void execute(const buffer_s16_t& audio, const buffer_c8_t& buffer, bool& configured_in, uint32_t& new_beep_index, uint32_t& new_beep_timer, TXProgressMessage& new_txprogress_message, AudioLevelReportMessage& new_level_message, uint32_t& new_power_acc_count, uint32_t& new_divider ) ;
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void set_fm_delta(uint32_t new_delta);
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void set_tone_gen_configure(const uint32_t delta, const float tone_mix_weight);
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///
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private:
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uint32_t fm_delta { 0 };
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uint32_t phase { 0 }, sphase { 0 };
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int32_t sample { 0 }, delta { };
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ToneGen tone_gen { };
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};
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class AM : public Modulator {
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public:
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AM();
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virtual void execute(const buffer_s16_t& audio, const buffer_c8_t& buffer, bool& configured_in, uint32_t& new_beep_index, uint32_t& new_beep_timer, TXProgressMessage& new_txprogress_message, AudioLevelReportMessage& new_level_message, uint32_t& new_power_acc_count, uint32_t& new_divider );
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};
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} /* namespace modulate */
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} /* namespace dsp */
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#endif/*__DSP_MODULATE_H__*/
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