1 /*
2  * Copyright 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 package org.hyphonate.megaaudio.player.sources;
17 
18 import org.hyphonate.megaaudio.player.AudioSource;
19 import org.hyphonate.megaaudio.player.AudioSourceProvider;
20 
21 /**
22  * An AudioSourceProvider for SparseChannelAudioSources
23  */
24 public class SparseChannelAudioSourceProvider extends AudioSourceProvider {
25     public static final int CHANNELMASK_LEFT = 0x01;
26     public static final int CHANNELMASK_RIGHT = 0x02;
27 
28     private int mChannelsMask;
SparseChannelAudioSourceProvider(int mask)29     public SparseChannelAudioSourceProvider(int mask) {
30         super();
31 
32         mChannelsMask = mask;
33     }
34 
35     @Override
getJavaSource()36     public AudioSource getJavaSource() {
37         return mActiveSource = mJavaSource != null
38                 ? mJavaSource
39                 : (mJavaSource = new SparseChannelAudioSource(mChannelsMask));
40     }
41 
42     @Override
getNativeSource()43     public AudioSource getNativeSource() {
44         // NOTE: until a native version of the SparseChannelAudioSource is implemented, returning
45         // null from here will default back to the Java SparseChannelAudioSource.
46         // return new NativeAudioSource(allocNativeSource());
47         return mActiveSource = null;
48     }
49 
50     // private native long allocNativeSource();
51 }
52