781dd5edb5
All these files were removed since accidental commit, revert and merge in 2.8.ea31f0ac3b+0a4e170c28+11f9a23a28+7b27b10fa6
56 lines
1.6 KiB
C++
56 lines
1.6 KiB
C++
/*******************************************************************************
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* Copyright 2009-2016 Jörg Müller
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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******************************************************************************/
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#pragma once
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/**
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* @file ButterworthCalculator.h
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* @ingroup fx
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* The ButterworthCalculator class.
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*/
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#include "fx/IDynamicIIRFilterCalculator.h"
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AUD_NAMESPACE_BEGIN
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/**
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* The ButterworthCalculator class calculates fourth order Butterworth low pass
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* filter coefficients for a dynamic DynamicIIRFilter.
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*/
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class AUD_LOCAL ButterworthCalculator : public IDynamicIIRFilterCalculator
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{
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private:
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/**
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* The attack value in seconds.
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*/
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const float m_frequency;
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// delete copy constructor and operator=
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ButterworthCalculator(const ButterworthCalculator&) = delete;
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ButterworthCalculator& operator=(const ButterworthCalculator&) = delete;
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public:
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/**
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* Creates a ButterworthCalculator object.
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* @param frequency The cutoff frequency.
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*/
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ButterworthCalculator(float frequency);
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virtual void recalculateCoefficients(SampleRate rate, std::vector<float> &b, std::vector<float> &a);
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};
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AUD_NAMESPACE_END
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