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 /** 32 * A parcelable collection of buffer constraints by codec type. 33 * 34 * {@hide} 35 */ 36 @SystemApi 37 public final class BufferConstraints implements Parcelable { 38 public static final int BUFFER_CODEC_MAX_NUM = 32; 39 40 private static final String TAG = "BufferConstraints"; 41 42 private Map<Integer, BufferConstraint> mBufferConstraints; 43 private List<BufferConstraint> mBufferConstraintList; 44 BufferConstraints(@onNull List<BufferConstraint> bufferConstraintList)45 public BufferConstraints(@NonNull List<BufferConstraint> 46 bufferConstraintList) { 47 48 mBufferConstraintList = new ArrayList<BufferConstraint>(bufferConstraintList); 49 mBufferConstraints = new HashMap<Integer, BufferConstraint>(); 50 for (int i = 0; i < BUFFER_CODEC_MAX_NUM; i++) { 51 mBufferConstraints.put(i, bufferConstraintList.get(i)); 52 } 53 } 54 BufferConstraints(Parcel in)55 BufferConstraints(Parcel in) { 56 mBufferConstraintList = new ArrayList<BufferConstraint>(); 57 mBufferConstraints = new HashMap<Integer, BufferConstraint>(); 58 in.readList(mBufferConstraintList, BufferConstraint.class.getClassLoader()); 59 for (int i = 0; i < mBufferConstraintList.size(); i++) { 60 mBufferConstraints.put(i, mBufferConstraintList.get(i)); 61 } 62 } 63 64 public static final @NonNull Parcelable.Creator<BufferConstraints> CREATOR = 65 new Parcelable.Creator<BufferConstraints>() { 66 public BufferConstraints createFromParcel(Parcel in) { 67 return new BufferConstraints(in); 68 } 69 70 public BufferConstraints[] newArray(int size) { 71 return new BufferConstraints[size]; 72 } 73 }; 74 75 @Override writeToParcel(@onNull Parcel out, int flags)76 public void writeToParcel(@NonNull Parcel out, int flags) { 77 out.writeList(mBufferConstraintList); 78 } 79 80 @Override describeContents()81 public int describeContents() { 82 return 0; 83 } 84 85 /** 86 * Get the buffer constraints by codec type. 87 * 88 * @param codec Audio codec 89 * @return buffer constraints by codec type. 90 * @hide 91 */ 92 @SystemApi forCodec(@luetoothCodecConfig.SourceCodecType int codec)93 public @Nullable BufferConstraint forCodec(@BluetoothCodecConfig.SourceCodecType int codec) { 94 return mBufferConstraints.get(codec); 95 } 96 } 97