53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2014 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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#include "stdafx.h"
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#define _USE_MATH_DEFINES
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#include <cmath>
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#include "PreampFilter.h"
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using namespace std;
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PreampFilter::PreampFilter(double dbGain)
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: dbGain(dbGain)
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{
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gain = (float)pow(10.0, dbGain / 20.0);
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}
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vector<wstring> PreampFilter::initialize(float sampleRate, unsigned maxFrameCount, vector<wstring> channelNames)
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{
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this->channelCount = channelNames.size();
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return channelNames;
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}
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#pragma AVRT_CODE_BEGIN
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void PreampFilter::process(float** output, float** input, unsigned frameCount)
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{
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for (size_t i = 0; i < channelCount; i++)
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{
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float* sampleChannel = input[i];
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for (unsigned j = 0; j < frameCount; j++)
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sampleChannel[j] *= gain;
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}
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}
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#pragma AVRT_CODE_END
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