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EqualizerAPO
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master
Editor/AnalysisPlotScene.cpp
50 строк
2 KB
xcv
up to 1.3
03 авг 2022, 21:39
03 авг 2022, 21:39
baa8447
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/* This file is part of EqualizerAPO, a system-wide equalizer. Copyright (C) 2015 Jonas Thedering 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 of the License, 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; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include <cmath> #include "AnalysisPlotScene.h" using namespace std; AnalysisPlotScene::AnalysisPlotScene(QObject* parent) : FrequencyPlotScene(parent) { } void AnalysisPlotScene::setFreqData(fftwf_complex* freqData, int frameCount, unsigned sampleRate) { nodes.clear(); for (int i = 0; i < frameCount / 2; i++) { float freq = (i * 1.0f / frameCount) * sampleRate; // GainIterator can't handle 0 Hz node if (freq == 0.0f) freq = 0.001f; float gain = sqrt(freqData[i][0] * freqData[i][0] + freqData[i][1] * freqData[i][1]); float dbGain = log10(gain) * 20; nodes.push_back(FilterNode(freq, dbGain)); } update(); } const vector<FilterNode>& AnalysisPlotScene::getNodes() const { return nodes; }