1 /*
2  * Copyright (C) 2022 The Android Open Source Project
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 package com.android.audiopolicytest;
18 
19 import android.media.AudioAttributes;
20 import android.media.audiopolicy.AudioProductStrategy;
21 
22 class AudioVolumeTestUtil {
23     // Default matches the invalid (empty) attributes from native.
24     // The difference is the input source default which is not aligned between native and java
25     public static final AudioAttributes DEFAULT_ATTRIBUTES =
26             AudioProductStrategy.getDefaultAttributes();
27     public static final AudioAttributes INVALID_ATTRIBUTES = new AudioAttributes.Builder().build();
28 
resetVolumeIndex(int indexMin, int indexMax)29     public static int resetVolumeIndex(int indexMin, int indexMax) {
30         return (indexMax + indexMin) / 2;
31     }
32 
incrementVolumeIndex(int index, int indexMin, int indexMax)33     public static int incrementVolumeIndex(int index, int indexMin, int indexMax) {
34         return (index + 1 > indexMax) ? resetVolumeIndex(indexMin, indexMax) : ++index;
35     }
36 
37 }
38