1 /* 2 * Copyright 2019 Google LLC 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 * https://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 #ifndef ANDROID_FXLAB_ALLPASSDESCRIPTION_H 17 #define ANDROID_FXLAB_ALLPASSDESCRIPTION_H 18 19 20 #include "EffectDescription.h" 21 #include "../CombFilter.h" 22 namespace Effect { 23 class AllPassDescription: public EffectDescription<AllPassDescription, 2> { 24 public: getName()25 static constexpr std::string_view getName() { 26 return std::string_view("AllPass"); 27 } 28 getCategory()29 static constexpr std::string_view getCategory() { 30 return std::string_view("Comb"); 31 } 32 getParams()33 static constexpr std::array<ParamType, getNumParams()> getParams() { 34 return std::array<ParamType, getNumParams()> { 35 ParamType("Delay (samples)", 1, 500, 10), 36 ParamType("Scale", 0.01, 0.99, 0.5), 37 }; 38 } 39 template<class iter_type> buildEffect(std::array<float,getNumParams ()> paramArr)40 static _ef<iter_type> buildEffect(std::array<float, getNumParams()> paramArr) { 41 return _ef<iter_type> { 42 CombFilter<iter_type>{paramArr[1], 1, -(paramArr[1]), static_cast<int>(paramArr[0])} 43 }; 44 } 45 }; 46 } //namespace Effect 47 48 #endif //ANDROID_FXLAB_ALLPASSDESCRIPTION_H 49