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extern/audaspace/include/fx/IIRFilterReader.h
- This file was added.
| /******************************************************************************* | |||||
| * 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 IIRFilterReader.h | |||||
| * @ingroup fx | |||||
| * The IIRFilterReader class. | |||||
| */ | |||||
| #include "fx/BaseIIRFilterReader.h" | |||||
| #include <vector> | |||||
| AUD_NAMESPACE_BEGIN | |||||
| /** | |||||
| * This class is for infinite impulse response filters with simple coefficients. | |||||
| */ | |||||
| class AUD_API IIRFilterReader : public BaseIIRFilterReader | |||||
| { | |||||
| private: | |||||
| /** | |||||
| * Output filter coefficients. | |||||
| */ | |||||
| std::vector<float> m_a; | |||||
| /** | |||||
| * Input filter coefficients. | |||||
| */ | |||||
| std::vector<float> m_b; | |||||
| // delete copy constructor and operator= | |||||
| IIRFilterReader(const IIRFilterReader&) = delete; | |||||
| IIRFilterReader& operator=(const IIRFilterReader&) = delete; | |||||
| public: | |||||
| /** | |||||
| * Creates a new IIR filter reader. | |||||
| * \param reader The reader to read from. | |||||
| * \param b The input filter coefficients. | |||||
| * \param a The output filter coefficients. | |||||
| */ | |||||
| IIRFilterReader(std::shared_ptr<IReader> reader, const std::vector<float>& b, const std::vector<float>& a); | |||||
| virtual sample_t filter(); | |||||
| /** | |||||
| * Sets new filter coefficients. | |||||
| * @param b The input filter coefficients. | |||||
| * @param a The output filter coefficients. | |||||
| */ | |||||
| void setCoefficients(const std::vector<float>& b, const std::vector<float>& a); | |||||
| }; | |||||
| AUD_NAMESPACE_END | |||||