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_FLANGERDESCRIPTION_H
17 #define ANDROID_FXLAB_FLANGERDESCRIPTION_H
18 
19 #include "EffectDescription.h"
20 #include "../FlangerEffect.h"
21 
22 namespace Effect {
23 class FlangerDescription : public EffectDescription<FlangerDescription, 3> {
24 public:
getName()25     static constexpr std::string_view getName() {
26         return std::string_view("Flanger");
27     }
28 
getCategory()29     static constexpr std::string_view getCategory() {
30         return std::string_view("Delay");
31     }
32 
getParams()33     static constexpr std::array<ParamType, getNumParams()> getParams() {
34         return std::array<ParamType, 3> {
35             ParamType("Depth (ms)", 0.1, 2, 1),
36             ParamType("Frequency", 0.1, 1, 0.2),
37             ParamType("Feedback", 0, 0.95, 0.7071),
38         };
39     }
40 
41     template <class iter_type>
buildEffect(std::array<float,getNumParams ()> paramArr)42     static _ef<iter_type> buildEffect(std::array<float, getNumParams()> paramArr) {
43         return std::function<void(iter_type, iter_type)> {
44             FlangerEffect<iter_type>{paramArr[0], paramArr[1], paramArr[2]}
45         };
46     }
47 
48 };
49 } // namespace Effect
50 #endif //ANDROID_FXLAB_FLANGERDESCRIPTION_H
51