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 android.bluetooth;
18 
19 import android.annotation.NonNull;
20 import android.annotation.Nullable;
21 import android.annotation.SystemApi;
22 import android.os.Parcel;
23 import android.os.Parcelable;
24 
25 import java.util.ArrayList;
26 import java.util.HashMap;
27 import java.util.List;
28 import java.util.Map;
29 
30 /**
31  * A parcelable collection of buffer constraints by codec type.
32  *
33  * @hide
34  */
35 @SystemApi
36 public final class BufferConstraints implements Parcelable {
37     public static final int BUFFER_CODEC_MAX_NUM = 32;
38 
39     private static final String TAG = "BufferConstraints";
40 
41     private Map<Integer, BufferConstraint> mBufferConstraints;
42     private List<BufferConstraint> mBufferConstraintList;
43 
BufferConstraints(@onNull List<BufferConstraint> bufferConstraintList)44     public BufferConstraints(@NonNull List<BufferConstraint> bufferConstraintList) {
45 
46         mBufferConstraintList = new ArrayList<BufferConstraint>(bufferConstraintList);
47         mBufferConstraints = new HashMap<Integer, BufferConstraint>();
48         for (int i = 0; i < BUFFER_CODEC_MAX_NUM; i++) {
49             mBufferConstraints.put(i, bufferConstraintList.get(i));
50         }
51     }
52 
BufferConstraints(Parcel in)53     BufferConstraints(Parcel in) {
54         mBufferConstraintList = new ArrayList<BufferConstraint>();
55         mBufferConstraints = new HashMap<Integer, BufferConstraint>();
56         in.readList(mBufferConstraintList, BufferConstraint.class.getClassLoader());
57         for (int i = 0; i < mBufferConstraintList.size(); i++) {
58             mBufferConstraints.put(i, mBufferConstraintList.get(i));
59         }
60     }
61 
62     public static final @NonNull Parcelable.Creator<BufferConstraints> CREATOR =
63             new Parcelable.Creator<BufferConstraints>() {
64                 public BufferConstraints createFromParcel(Parcel in) {
65                     return new BufferConstraints(in);
66                 }
67 
68                 public BufferConstraints[] newArray(int size) {
69                     return new BufferConstraints[size];
70                 }
71             };
72 
73     @Override
writeToParcel(@onNull Parcel out, int flags)74     public void writeToParcel(@NonNull Parcel out, int flags) {
75         out.writeList(mBufferConstraintList);
76     }
77 
78     @Override
describeContents()79     public int describeContents() {
80         return 0;
81     }
82 
83     /**
84      * Get the buffer constraints by codec type.
85      *
86      * @param codec Audio codec
87      * @return buffer constraints by codec type.
88      * @hide
89      */
90     @SystemApi
forCodec(@luetoothCodecConfig.SourceCodecType int codec)91     public @Nullable BufferConstraint forCodec(@BluetoothCodecConfig.SourceCodecType int codec) {
92         return mBufferConstraints.get(codec);
93     }
94 }
95