1 /******************************************************************************* 2 * Copyright 2009-2016 Jörg Müller 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 ******************************************************************************/ 16 17 #pragma once 18 19 /** 20 * @file DynamicIIRFilter.h 21 * @ingroup fx 22 * The DynamicIIRFilter class. 23 */ 24 25 #include "fx/Effect.h" 26 27 AUD_NAMESPACE_BEGIN 28 29 class IDynamicIIRFilterCalculator; 30 31 /** 32 * This sound creates a IIR filter reader. 33 * 34 * This means that on sample rate change the filter recalculates its 35 * coefficients. 36 */ 37 class AUD_API DynamicIIRFilter : public Effect 38 { 39 protected: 40 /// The IDynamicIIRFilterCalculator that calculates the dynamic filter coefficients. 41 std::shared_ptr<IDynamicIIRFilterCalculator> m_calculator; 42 43 public: 44 /** 45 * Creates a new Dynmic IIR filter sound. 46 * \param sound The input sound. 47 * \param calculator The calculator which recalculates the dynamic filter coefficients. 48 */ 49 DynamicIIRFilter(std::shared_ptr<ISound> sound, std::shared_ptr<IDynamicIIRFilterCalculator> calculator); 50 51 virtual std::shared_ptr<IReader> createReader(); 52 }; 53 54 AUD_NAMESPACE_END 55