/* * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc. * Copyright (C) 2016 Furrtek * Copyright (C) 2020 Shao * * 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. */ #include "proc_am_tv.hpp" #include "portapack_shared_memory.hpp" #include "dsp_fft.hpp" #include "event_m4.hpp" #include <cstdint> void WidebandFMAudio::execute(const buffer_c8_t& buffer) { if( !configured ) { return; } std::fill(spectrum.begin(), spectrum.end(), 0); for(size_t i=0; i<spectrum.size(); i++) { spectrum[i] += buffer.p[i]; } const buffer_c16_t buffer_c16 {spectrum.data(),spectrum.size(),buffer.sampling_rate}; channel_spectrum.feed(buffer_c16); int8_t re ; //int8_t im; //int8_t mag; for (size_t i = 0; i < 128; i++) { re = buffer.p[i].real(); //im = buffer.p[i].imag(); //mag = __builtin_sqrtf((re * re) + (im * im)) ; const unsigned int v = re + 127.0f; //timescope audio_spectrum.db[i] = std::max(0U, std::min(255U, v)); } AudioSpectrumMessage message { &audio_spectrum }; shared_memory.application_queue.push(message); } void WidebandFMAudio::on_message(const Message* const message) { switch(message->id) { case Message::ID::UpdateSpectrum: case Message::ID::SpectrumStreamingConfig: channel_spectrum.on_message(message); break; case Message::ID::WFMConfigure: configure(*reinterpret_cast<const WFMConfigureMessage*>(message)); break; default: break; } } void WidebandFMAudio::configure(const WFMConfigureMessage& message) { (void)message; // avoid warning configured = true; } int main() { EventDispatcher event_dispatcher { std::make_unique<WidebandFMAudio>() }; event_dispatcher.run(); return 0; }