1 /* 2 * Copyright (C) 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 17 package com.android.car.audio; 18 19 import static com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport.DUMP_INFO; 20 21 import android.annotation.NonNull; 22 import android.annotation.Nullable; 23 import android.media.AudioAttributes; 24 import android.media.AudioManager; 25 import android.media.AudioPlaybackConfiguration; 26 import android.util.SparseArray; 27 import android.util.proto.ProtoOutputStream; 28 29 import com.android.car.audio.CarAudioService.SystemClockWrapper; 30 import com.android.car.internal.ExcludeFromCodeCoverageGeneratedReport; 31 import com.android.car.internal.util.IndentingPrintWriter; 32 import com.android.internal.util.Preconditions; 33 34 import java.util.List; 35 import java.util.Objects; 36 37 final class CarAudioPlaybackCallback extends AudioManager.AudioPlaybackCallback { 38 private final SparseArray<ZoneAudioPlaybackCallback> mCarAudioZonesToZonePlaybackCallback; 39 CarAudioPlaybackCallback(@onNull SparseArray<CarAudioZone> carAudioZones, @Nullable CarAudioPlaybackMonitor carAudioPlaybackMonitor, SystemClockWrapper clock, int volumeKeyEventTimeoutMs)40 CarAudioPlaybackCallback(@NonNull SparseArray<CarAudioZone> carAudioZones, 41 @Nullable CarAudioPlaybackMonitor carAudioPlaybackMonitor, 42 SystemClockWrapper clock, int volumeKeyEventTimeoutMs) { 43 Objects.requireNonNull(carAudioZones, "Car audio zone cannot be null"); 44 Preconditions.checkArgument(carAudioZones.size() > 0, 45 "Car audio zones must not be empty"); 46 mCarAudioZonesToZonePlaybackCallback = createCallbackMapping(carAudioZones, 47 carAudioPlaybackMonitor, clock, volumeKeyEventTimeoutMs); 48 } 49 createCallbackMapping(SparseArray<CarAudioZone> carAudioZones, @Nullable CarAudioPlaybackMonitor carAudioPlaybackMonitor, SystemClockWrapper clock, int volumeKeyEventTimeoutMs)50 private static SparseArray createCallbackMapping(SparseArray<CarAudioZone> carAudioZones, 51 @Nullable CarAudioPlaybackMonitor carAudioPlaybackMonitor, 52 SystemClockWrapper clock, int volumeKeyEventTimeoutMs) { 53 SparseArray<ZoneAudioPlaybackCallback> carAudioZonesToZonePlaybackCallback = 54 new SparseArray<>(); 55 for (int i = 0; i < carAudioZones.size(); i++) { 56 CarAudioZone zone = carAudioZones.get(i); 57 carAudioZonesToZonePlaybackCallback.put(zone.getId(), 58 new ZoneAudioPlaybackCallback(zone, carAudioPlaybackMonitor, clock, 59 volumeKeyEventTimeoutMs)); 60 } 61 return carAudioZonesToZonePlaybackCallback; 62 } 63 64 @ExcludeFromCodeCoverageGeneratedReport(reason = DUMP_INFO) dump(IndentingPrintWriter writer)65 void dump(IndentingPrintWriter writer) { 66 writer.println("CarAudioPlaybackCallback"); 67 writer.increaseIndent(); 68 69 writer.println("Audio playback callback for zones"); 70 writer.increaseIndent(); 71 dumpZoneCallbacks(writer); 72 writer.decreaseIndent(); 73 74 writer.decreaseIndent(); 75 } 76 77 @ExcludeFromCodeCoverageGeneratedReport(reason = DUMP_INFO) dumpZoneCallbacks(IndentingPrintWriter writer)78 void dumpZoneCallbacks(IndentingPrintWriter writer) { 79 for (int i = 0; i < mCarAudioZonesToZonePlaybackCallback.size(); i++) { 80 mCarAudioZonesToZonePlaybackCallback.valueAt(i).dump(writer); 81 } 82 } 83 84 @ExcludeFromCodeCoverageGeneratedReport(reason = DUMP_INFO) dumpProto(ProtoOutputStream proto)85 void dumpProto(ProtoOutputStream proto) { 86 long callbackToken = proto.start(CarAudioDumpProto.CAR_AUDIO_PLAYBACK_CALLBACK); 87 for (int i = 0; i < mCarAudioZonesToZonePlaybackCallback.size(); i++) { 88 mCarAudioZonesToZonePlaybackCallback.valueAt(i).dumpProto(proto); 89 } 90 proto.end(callbackToken); 91 } 92 93 @Override onPlaybackConfigChanged(List<AudioPlaybackConfiguration> configurations)94 public void onPlaybackConfigChanged(List<AudioPlaybackConfiguration> configurations) { 95 for (int i = 0; i < mCarAudioZonesToZonePlaybackCallback.size(); i++) { 96 mCarAudioZonesToZonePlaybackCallback.valueAt(i).onPlaybackConfigChanged(configurations); 97 } 98 } 99 getAllActiveAudioAttributesForZone(int audioZone)100 public List<AudioAttributes> getAllActiveAudioAttributesForZone(int audioZone) { 101 return mCarAudioZonesToZonePlaybackCallback.get(audioZone).getAllActiveAudioAttributes(); 102 } 103 resetStillActiveContexts()104 public void resetStillActiveContexts() { 105 for (int i = 0; i < mCarAudioZonesToZonePlaybackCallback.size(); i++) { 106 mCarAudioZonesToZonePlaybackCallback.valueAt(i).resetStillActiveContexts(); 107 } 108 } 109 } 110