93 lines
3.2 KiB
Java
93 lines
3.2 KiB
Java
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/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.media;
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import android.annotation.NonNull;
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import android.annotation.SystemApi;
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import android.annotation.SystemApi.Client;
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import android.app.SystemServiceRegistry;
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import android.content.Context;
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import android.os.Build;
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import androidx.annotation.RequiresApi;
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import com.android.modules.annotation.MinSdk;
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import com.android.modules.utils.build.SdkLevel;
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/**
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* Class for performing registration for all media services on com.android.media apex.
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*
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* @hide
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*/
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@MinSdk(Build.VERSION_CODES.S)
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@RequiresApi(Build.VERSION_CODES.S)
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@SystemApi(client = Client.MODULE_LIBRARIES)
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public class MediaFrameworkInitializer {
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private MediaFrameworkInitializer() {
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}
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private static volatile MediaServiceManager sMediaServiceManager;
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/**
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* Sets an instance of {@link MediaServiceManager} that allows
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* the media mainline module to register/obtain media binder services. This is called
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* by the platform during the system initialization.
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*
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* @param mediaServiceManager instance of {@link MediaServiceManager} that allows
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* the media mainline module to register/obtain media binder services.
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*/
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public static void setMediaServiceManager(
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@NonNull MediaServiceManager mediaServiceManager) {
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if (sMediaServiceManager != null) {
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throw new IllegalStateException("setMediaServiceManager called twice!");
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}
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if (mediaServiceManager == null) {
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throw new NullPointerException("mediaServiceManager is null!");
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}
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sMediaServiceManager = mediaServiceManager;
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}
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/** @hide */
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public static MediaServiceManager getMediaServiceManager() {
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return sMediaServiceManager;
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}
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/**
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* Called by {@link SystemServiceRegistry}'s static initializer and registers all media
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* services to {@link Context}, so that {@link Context#getSystemService} can return them.
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*
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* @throws IllegalStateException if this is called from anywhere besides
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* {@link SystemServiceRegistry}
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*/
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public static void registerServiceWrappers() {
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SystemServiceRegistry.registerContextAwareService(
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Context.MEDIA_TRANSCODING_SERVICE,
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MediaTranscodingManager.class,
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context -> new MediaTranscodingManager(context)
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);
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if (SdkLevel.isAtLeastS()) {
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SystemServiceRegistry.registerContextAwareService(
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Context.MEDIA_COMMUNICATION_SERVICE,
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MediaCommunicationManager.class,
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context -> new MediaCommunicationManager(context)
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);
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}
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}
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}
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