59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2012 Jonas Thedering
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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 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include <string>
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struct BiQuad
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{
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BiQuad() {}
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BiQuad(float dbGain, float freq, float srate, float bandwidthOrQ, bool isQ);
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__declspec(align(16)) float a[4];
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float a0;
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};
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class ParametricEQ
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{
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public:
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ParametricEQ();
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~ParametricEQ();
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void initialize(float sampleRate, unsigned channelCount);
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void loadConfig();
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void process(float *output, float *input, unsigned frameCount);
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private:
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void loadConfig(std::wstring path, unsigned& loadFilterCount, float& loadPreamp);
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float getFreq(char* freqString);
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static unsigned long __stdcall notificationThread(void* parameter);
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std::wstring configPath;
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float sampleRate;
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unsigned channelCount;
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float preamp;
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BiQuad filters[100];
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unsigned filterCount;
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float sampleData[2000];
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bool lastInputWasSilent;
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void* threadHandle;
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void* shutdownEvent;
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};
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