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Diffstat (limited to 'extern/audaspace/include/fx/IIRFilterReader.h')
-rw-r--r-- | extern/audaspace/include/fx/IIRFilterReader.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/extern/audaspace/include/fx/IIRFilterReader.h b/extern/audaspace/include/fx/IIRFilterReader.h new file mode 100644 index 00000000000..34518ce69c6 --- /dev/null +++ b/extern/audaspace/include/fx/IIRFilterReader.h @@ -0,0 +1,70 @@ +/******************************************************************************* + * 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 |