mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-14 20:18:13 +00:00
75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
/*
|
|
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __PROC_WFM_AUDIO_H__
|
|
#define __PROC_WFM_AUDIO_H__
|
|
|
|
#include "baseband_processor.hpp"
|
|
|
|
#include "dsp_decimate.hpp"
|
|
#include "dsp_demodulate.hpp"
|
|
|
|
#include "audio_output.hpp"
|
|
#include "spectrum_collector.hpp"
|
|
|
|
class WidebandFMAudio : public BasebandProcessor {
|
|
public:
|
|
void execute(const buffer_c8_t& buffer) override;
|
|
|
|
void on_message(const Message* const message) override;
|
|
|
|
private:
|
|
static constexpr size_t baseband_fs = 3072000;
|
|
static constexpr auto spectrum_rate_hz = 50.0f;
|
|
|
|
std::array<complex16_t, 512> dst;
|
|
const buffer_c16_t dst_buffer {
|
|
dst.data(),
|
|
dst.size()
|
|
};
|
|
const buffer_s16_t work_audio_buffer {
|
|
(int16_t*)dst.data(),
|
|
sizeof(dst) / sizeof(int16_t)
|
|
};
|
|
|
|
dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0;
|
|
dsp::decimate::FIRC16xR16x16Decim2 decim_1;
|
|
uint32_t channel_filter_pass_f = 0;
|
|
uint32_t channel_filter_stop_f = 0;
|
|
|
|
dsp::demodulate::FM demod;
|
|
dsp::decimate::DecimateBy2CIC4Real audio_dec_1;
|
|
dsp::decimate::DecimateBy2CIC4Real audio_dec_2;
|
|
dsp::decimate::FIR64AndDecimateBy2Real audio_filter;
|
|
|
|
AudioOutput audio_output;
|
|
|
|
SpectrumCollector channel_spectrum;
|
|
size_t spectrum_interval_samples = 0;
|
|
size_t spectrum_samples = 0;
|
|
|
|
bool configured { false };
|
|
void configure(const WFMConfigureMessage& message);
|
|
void capture_config(const CaptureConfigMessage& message);
|
|
};
|
|
|
|
#endif/*__PROC_WFM_AUDIO_H__*/
|