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/*******************************************************************************
* Copyright 2009-2016 Jörg Müller
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
#pragma once
/**
* @file IIRFilter.h
* @ingroup fx
* The IIRFilter class.
*/
#include "fx/Effect.h"
#include <vector>
AUD_NAMESPACE_BEGIN
/**
* This sound creates a IIR filter reader.
*/
class AUD_API IIRFilter : public Effect
{
private:
/**
* Output filter coefficients.
*/
std::vector<float> m_a;
/**
* Input filter coefficients.
*/
std::vector<float> m_b;
// delete copy constructor and operator=
IIRFilter(const IIRFilter&) = delete;
IIRFilter& operator=(const IIRFilter&) = delete;
public:
/**
* Creates a new IIR filter sound.
* \param sound The input sound.
* \param b The input filter coefficients.
* \param a The output filter coefficients.
*/
IIRFilter(std::shared_ptr<ISound> sound, const std::vector<float>& b, const std::vector<float>& a);
virtual std::shared_ptr<IReader> createReader();
};
AUD_NAMESPACE_END
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