| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.android.car; |
| |
| import android.car.media.CarAudioManager; |
| import android.media.AudioAttributes; |
| import android.os.Bundle; |
| |
| /** |
| * Utility class to map car usage into AudioAttributes and the other way around. |
| */ |
| public class CarAudioAttributesUtil { |
| |
| public static final int CAR_AUDIO_USAGE_CARSERVICE_BOTTOM = 100; |
| public static final int CAR_AUDIO_USAGE_CARSERVICE_CAR_PROXY = 101; |
| public static final int CAR_AUDIO_USAGE_CARSERVICE_MEDIA_MUTE = 102; |
| |
| /** Bundle key for storing media type. */ |
| public static final String KEY_CAR_AUDIO_TYPE = "car_audio_type"; |
| |
| private static final int CAR_AUDIO_TYPE_DEFAULT = 0; |
| private static final int CAR_AUDIO_TYPE_VOICE_COMMAND = 1; |
| private static final int CAR_AUDIO_TYPE_SAFETY_ALERT = 2; |
| private static final int CAR_AUDIO_TYPE_RADIO = 3; |
| private static final int CAR_AUDIO_TYPE_CARSERVICE_BOTTOM = 4; |
| private static final int CAR_AUDIO_TYPE_CARSERVICE_CAR_PROXY = 5; |
| private static final int CAR_AUDIO_TYPE_CARSERVICE_MEDIA_MUTE = 6; |
| private static final int CAR_AUDIO_TYPE_EXTERNAL_SOURCE = 7; |
| |
| /** Bundle key for storing routing type which is String. */ |
| public static final String KEY_EXT_ROUTING_TYPE = "ext_routing_type"; |
| |
| public static AudioAttributes getAudioAttributesForCarUsage(int carUsage) { |
| switch (carUsage) { |
| case CarAudioManager.CAR_AUDIO_USAGE_MUSIC: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_MUSIC, |
| AudioAttributes.USAGE_MEDIA); |
| case CarAudioManager.CAR_AUDIO_USAGE_EXTERNAL_AUDIO_SOURCE: // default to radio |
| case CarAudioManager.CAR_AUDIO_USAGE_RADIO: |
| return createCustomAudioAttributes(CAR_AUDIO_TYPE_RADIO, |
| AudioAttributes.CONTENT_TYPE_MUSIC, AudioAttributes.USAGE_MEDIA); |
| case CarAudioManager.CAR_AUDIO_USAGE_NAVIGATION_GUIDANCE: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_SPEECH, |
| AudioAttributes.USAGE_ASSISTANCE_NAVIGATION_GUIDANCE); |
| case CarAudioManager.CAR_AUDIO_USAGE_VOICE_CALL: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_SPEECH, |
| AudioAttributes.USAGE_VOICE_COMMUNICATION); |
| case CarAudioManager.CAR_AUDIO_USAGE_VOICE_COMMAND: |
| return createCustomAudioAttributes(CAR_AUDIO_TYPE_VOICE_COMMAND, |
| AudioAttributes.CONTENT_TYPE_SPEECH, |
| AudioAttributes.USAGE_ASSISTANCE_NAVIGATION_GUIDANCE); |
| case CarAudioManager.CAR_AUDIO_USAGE_ALARM: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_SONIFICATION, |
| AudioAttributes.USAGE_ALARM); |
| case CarAudioManager.CAR_AUDIO_USAGE_NOTIFICATION: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_SONIFICATION, |
| AudioAttributes.USAGE_NOTIFICATION); |
| case CarAudioManager.CAR_AUDIO_USAGE_SYSTEM_SOUND: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_SONIFICATION, |
| AudioAttributes.USAGE_ASSISTANCE_SONIFICATION); |
| case CarAudioManager.CAR_AUDIO_USAGE_SYSTEM_SAFETY_ALERT: |
| return createCustomAudioAttributes(CAR_AUDIO_TYPE_SAFETY_ALERT, |
| AudioAttributes.CONTENT_TYPE_SONIFICATION, |
| AudioAttributes.USAGE_NOTIFICATION); |
| case CAR_AUDIO_USAGE_CARSERVICE_BOTTOM: |
| return createCustomAudioAttributes(CAR_AUDIO_TYPE_CARSERVICE_BOTTOM, |
| AudioAttributes.CONTENT_TYPE_UNKNOWN, |
| AudioAttributes.USAGE_UNKNOWN); |
| case CAR_AUDIO_USAGE_CARSERVICE_CAR_PROXY: |
| return createCustomAudioAttributes(CAR_AUDIO_TYPE_CARSERVICE_CAR_PROXY, |
| AudioAttributes.CONTENT_TYPE_UNKNOWN, |
| AudioAttributes.USAGE_UNKNOWN); |
| case CAR_AUDIO_USAGE_CARSERVICE_MEDIA_MUTE: |
| return createCustomAudioAttributes(CAR_AUDIO_TYPE_CARSERVICE_MEDIA_MUTE, |
| AudioAttributes.CONTENT_TYPE_MUSIC, |
| AudioAttributes.USAGE_UNKNOWN); |
| case CarAudioManager.CAR_AUDIO_USAGE_DEFAULT: |
| default: |
| return createAudioAttributes(AudioAttributes.CONTENT_TYPE_UNKNOWN, |
| AudioAttributes.USAGE_UNKNOWN); |
| } |
| } |
| |
| public static int getCarUsageFromAudioAttributes(AudioAttributes attr) { |
| int usage = attr.getUsage(); |
| Bundle bundle = attr.getBundle(); |
| int type = CAR_AUDIO_TYPE_DEFAULT; |
| if (bundle != null) { |
| type = bundle.getInt(KEY_CAR_AUDIO_TYPE, CAR_AUDIO_TYPE_DEFAULT); |
| } |
| switch (usage) { |
| case AudioAttributes.USAGE_MEDIA: |
| switch (type) { |
| case CAR_AUDIO_TYPE_RADIO: |
| return CarAudioManager.CAR_AUDIO_USAGE_RADIO; |
| case CAR_AUDIO_TYPE_EXTERNAL_SOURCE: |
| return CarAudioManager.CAR_AUDIO_USAGE_EXTERNAL_AUDIO_SOURCE; |
| default: |
| return CarAudioManager.CAR_AUDIO_USAGE_MUSIC; |
| } |
| case AudioAttributes.USAGE_ASSISTANCE_NAVIGATION_GUIDANCE: |
| if (type == CAR_AUDIO_TYPE_VOICE_COMMAND) { |
| return CarAudioManager.CAR_AUDIO_USAGE_VOICE_COMMAND; |
| } else { |
| return CarAudioManager.CAR_AUDIO_USAGE_NAVIGATION_GUIDANCE; |
| } |
| case AudioAttributes.USAGE_VOICE_COMMUNICATION: |
| return CarAudioManager.CAR_AUDIO_USAGE_VOICE_CALL; |
| case AudioAttributes.USAGE_ALARM: |
| return CarAudioManager.CAR_AUDIO_USAGE_ALARM; |
| case AudioAttributes.USAGE_NOTIFICATION: |
| if (type == CAR_AUDIO_TYPE_SAFETY_ALERT) { |
| return CarAudioManager.CAR_AUDIO_USAGE_SYSTEM_SAFETY_ALERT; |
| } else { |
| return CarAudioManager.CAR_AUDIO_USAGE_NOTIFICATION; |
| } |
| case AudioAttributes.USAGE_ASSISTANCE_SONIFICATION: |
| return CarAudioManager.CAR_AUDIO_USAGE_SYSTEM_SOUND; |
| case AudioAttributes.USAGE_UNKNOWN: |
| default: { |
| switch (type) { |
| case CAR_AUDIO_TYPE_CARSERVICE_BOTTOM: |
| return CAR_AUDIO_USAGE_CARSERVICE_BOTTOM; |
| case CAR_AUDIO_TYPE_CARSERVICE_CAR_PROXY: |
| return CAR_AUDIO_USAGE_CARSERVICE_CAR_PROXY; |
| case CAR_AUDIO_TYPE_CARSERVICE_MEDIA_MUTE: |
| return CAR_AUDIO_USAGE_CARSERVICE_MEDIA_MUTE; |
| default: |
| return CarAudioManager.CAR_AUDIO_USAGE_DEFAULT; |
| } |
| } |
| } |
| } |
| |
| private static AudioAttributes createAudioAttributes(int contentType, int usage) { |
| AudioAttributes.Builder builder = new AudioAttributes.Builder(); |
| return builder.setContentType(contentType).setUsage(usage).build(); |
| } |
| |
| private static AudioAttributes createCustomAudioAttributes(int carAudioType, |
| int contentType, int usage) { |
| AudioAttributes.Builder builder = new AudioAttributes.Builder(); |
| Bundle bundle = new Bundle(); |
| bundle.putInt(KEY_CAR_AUDIO_TYPE, carAudioType); |
| return builder.setContentType(contentType).setUsage(usage).addBundle(bundle).build(); |
| } |
| |
| public static AudioAttributes getCarRadioAttributes(String radioType) { |
| AudioAttributes.Builder builder = new AudioAttributes.Builder(); |
| Bundle bundle = new Bundle(); |
| bundle.putInt(KEY_CAR_AUDIO_TYPE, CAR_AUDIO_TYPE_RADIO); |
| bundle.putString(KEY_EXT_ROUTING_TYPE, radioType); |
| return builder.setContentType(AudioAttributes.CONTENT_TYPE_MUSIC). |
| setUsage(AudioAttributes.USAGE_MEDIA).addBundle(bundle).build(); |
| } |
| |
| public static AudioAttributes getCarExtSourceAttributes(String externalSourceType) { |
| AudioAttributes.Builder builder = new AudioAttributes.Builder(); |
| Bundle bundle = new Bundle(); |
| bundle.putInt(KEY_CAR_AUDIO_TYPE, CAR_AUDIO_TYPE_EXTERNAL_SOURCE); |
| bundle.putString(KEY_EXT_ROUTING_TYPE, externalSourceType); |
| return builder.setContentType(AudioAttributes.CONTENT_TYPE_MUSIC). |
| setUsage(AudioAttributes.USAGE_MEDIA).addBundle(bundle).build(); |
| } |
| |
| /** |
| * Get ext routing type from given AudioAttributes. |
| * @param attr |
| * @return {@link CarAudioManager#CAR_RADIO_TYPE_AM_FM} if ext routing info does not exist. |
| */ |
| public static String getExtRouting(AudioAttributes attr) { |
| Bundle bundle = attr.getBundle(); |
| String extRouting = CarAudioManager.CAR_RADIO_TYPE_AM_FM; |
| if (bundle != null) { |
| extRouting = bundle.getString(KEY_EXT_ROUTING_TYPE); |
| } |
| return extRouting; |
| } |
| } |