1 /*
2  * Copyright (C) 2020 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.cts.verifier.audio.audiolib;
18 
19 import android.content.Context;
20 import android.media.AudioManager;
21 
22 public class AudioSystemParams {
23     // This value will be calculated in init()
24     private int mSystemSampleRate;
25 
26     // This value will be calculated in init()
27     private int mSystemBufferFrames;
28 
29     // The system burst buffer size as reported by AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER
30     // This value will be calculated in init()
31     private int mSystemBurstFrames;
32 
init(Context context)33     public void init(Context context) {
34         AudioManager audioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
35 
36         String framesPerBuffer = audioManager.getProperty(
37                 AudioManager.PROPERTY_OUTPUT_FRAMES_PER_BUFFER);
38         mSystemBurstFrames = Integer.parseInt(framesPerBuffer, 10);
39 
40         mSystemBufferFrames = mSystemBurstFrames;
41 
42         mSystemSampleRate = Integer.parseInt(
43                 audioManager.getProperty(AudioManager.PROPERTY_OUTPUT_SAMPLE_RATE));
44     }
45 
getSystemSampleRate()46     public int getSystemSampleRate() {
47         return mSystemSampleRate;
48     }
49 
getSystemBufferFrames()50     public int getSystemBufferFrames() {
51         return mSystemBufferFrames;
52     }
53 
getSystemBurstFrames()54     public int getSystemBurstFrames()  {
55         return mSystemBurstFrames;
56     }
57 }