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.telephony.ims; 18 19 import android.annotation.NonNull; 20 import android.annotation.SystemApi; 21 import android.os.Parcel; 22 import android.os.Parcelable; 23 import android.util.Range; 24 25 /** 26 * Parcelable object to handle audio codec attributes. 27 * It provides the audio codec bitrate, bandwidth and their upper/lower bound. 28 * 29 * @hide 30 */ 31 @SystemApi 32 public final class AudioCodecAttributes implements Parcelable { 33 // The audio codec bitrate in kbps. 34 private float mBitrateKbps; 35 // The range of the audio codec bitrate in kbps. 36 private Range<Float> mBitrateRangeKbps; 37 // The audio codec bandwidth in kHz. 38 private float mBandwidthKhz; 39 // The range of the audio codec bandwidth in kHz. 40 private Range<Float> mBandwidthRangeKhz; 41 42 43 /** 44 * Constructor. 45 * 46 * @param bitrateKbps The audio codec bitrate in kbps. 47 * @param bitrateRangeKbps The range of the audio codec bitrate in kbps. 48 * @param bandwidthKhz The audio codec bandwidth in kHz. 49 * @param bandwidthRangeKhz The range of the audio codec bandwidth in kHz. 50 */ 51 AudioCodecAttributes(float bitrateKbps, @NonNull Range<Float> bitrateRangeKbps, float bandwidthKhz, @NonNull Range<Float> bandwidthRangeKhz)52 public AudioCodecAttributes(float bitrateKbps, @NonNull Range<Float> bitrateRangeKbps, 53 float bandwidthKhz, @NonNull Range<Float> bandwidthRangeKhz) { 54 mBitrateKbps = bitrateKbps; 55 mBitrateRangeKbps = bitrateRangeKbps; 56 mBandwidthKhz = bandwidthKhz; 57 mBandwidthRangeKhz = bandwidthRangeKhz; 58 } 59 AudioCodecAttributes(Parcel in)60 private AudioCodecAttributes(Parcel in) { 61 mBitrateKbps = in.readFloat(); 62 mBitrateRangeKbps = new Range<>(in.readFloat(), in.readFloat()); 63 mBandwidthKhz = in.readFloat(); 64 mBandwidthRangeKhz = new Range<>(in.readFloat(), in.readFloat()); 65 } 66 67 @Override writeToParcel(@onNull Parcel out, int flags)68 public void writeToParcel(@NonNull Parcel out, int flags) { 69 out.writeFloat(mBitrateKbps); 70 out.writeFloat(mBitrateRangeKbps.getLower()); 71 out.writeFloat(mBitrateRangeKbps.getUpper()); 72 out.writeFloat(mBandwidthKhz); 73 out.writeFloat(mBandwidthRangeKhz.getLower()); 74 out.writeFloat(mBandwidthRangeKhz.getUpper()); 75 } 76 77 @Override describeContents()78 public int describeContents() { 79 return 0; 80 } 81 82 public static final @NonNull Creator<AudioCodecAttributes> CREATOR = 83 new Creator<AudioCodecAttributes>() { 84 @Override 85 public AudioCodecAttributes createFromParcel(Parcel in) { 86 return new AudioCodecAttributes(in); 87 } 88 89 @Override 90 public AudioCodecAttributes[] newArray(int size) { 91 return new AudioCodecAttributes[size]; 92 } 93 }; 94 95 /** 96 * @return the exact value of the audio codec bitrate in kbps. 97 */ getBitrateKbps()98 public float getBitrateKbps() { 99 return mBitrateKbps; 100 } 101 102 /** 103 * @return the range of the audio codec bitrate in kbps 104 */ getBitrateRangeKbps()105 public @NonNull Range<Float> getBitrateRangeKbps() { 106 return mBitrateRangeKbps; 107 } 108 109 /** 110 * @return the exact value of the audio codec bandwidth in kHz. 111 */ getBandwidthKhz()112 public float getBandwidthKhz() { 113 return mBandwidthKhz; 114 } 115 116 /** 117 * @return the range of the audio codec bandwidth in kHz. 118 */ getBandwidthRangeKhz()119 public @NonNull Range<Float> getBandwidthRangeKhz() { 120 return mBandwidthRangeKhz; 121 } 122 123 @NonNull 124 @Override toString()125 public String toString() { 126 return "{ bitrateKbps=" + mBitrateKbps 127 + ", bitrateRangeKbps=" + mBitrateRangeKbps 128 + ", bandwidthKhz=" + mBandwidthKhz 129 + ", bandwidthRangeKhz=" + mBandwidthRangeKhz + " }"; 130 } 131 } 132