1 /* 2 * Copyright (C) 2024 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 android.util.SparseArray; 20 import android.util.SparseIntArray; 21 22 import org.xmlpull.v1.XmlPullParserException; 23 24 import java.io.IOException; 25 import java.util.List; 26 27 /** 28 * Interface for loading car audio service configurations 29 */ 30 public interface CarAudioZonesHelper { 31 32 /** 33 * @return Car audio context which can be used to setup car audio service 34 */ getCarAudioContext()35 CarAudioContext getCarAudioContext(); 36 37 /** 38 * @return Car audio zone id to occupant zone id mapping 39 */ getCarAudioZoneIdToOccupantZoneIdMapping()40 SparseIntArray getCarAudioZoneIdToOccupantZoneIdMapping(); 41 42 /** 43 * @return Mirroring devices to use between audio zones 44 */ getMirrorDeviceInfos()45 List<CarAudioDeviceInfo> getMirrorDeviceInfos(); 46 47 /** 48 * @return List of audio zones which can be used to configure the car audio service 49 */ loadAudioZones()50 SparseArray<CarAudioZone> loadAudioZones() throws IOException, XmlPullParserException; 51 52 /** 53 * @return Boolean indicating if core audio routing should be used 54 */ useCoreAudioRouting()55 boolean useCoreAudioRouting(); 56 57 /** 58 * @return Boolean indicating if core audio volume management should be used 59 */ useCoreAudioVolume()60 boolean useCoreAudioVolume(); 61 62 /** 63 * Determines of audio control HAL ducking signals should be use 64 * 65 * @param defaultUseHalDuckingSignal default value that should be returned of there is no 66 * definition of use HAL ducking defined internally 67 * 68 * @return Boolean indicating if HAL ducking signal should be use 69 */ useHalDuckingSignalOrDefault(boolean defaultUseHalDuckingSignal)70 boolean useHalDuckingSignalOrDefault(boolean defaultUseHalDuckingSignal); 71 72 /** 73 * @return Boolean indicating if audio control HAL muting should be used 74 */ useVolumeGroupMuting()75 boolean useVolumeGroupMuting(); 76 } 77