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/*
* Copyright 2020 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 android.media;
import android.annotation.NonNull;
import android.annotation.SystemApi;
import android.annotation.SystemApi.Client;
import android.app.SystemServiceRegistry;
import android.content.Context;
import android.os.Build;
import com.android.modules.annotation.MinSdk;
import com.android.modules.utils.build.SdkLevel;
/**
* Class for performing registration for all media services on com.android.media apex.
*
* @hide
*/
@MinSdk(Build.VERSION_CODES.S)
@SystemApi(client = Client.MODULE_LIBRARIES)
public class MediaFrameworkInitializer {
private MediaFrameworkInitializer() {
}
private static volatile MediaServiceManager sMediaServiceManager;
/**
* Sets an instance of {@link MediaServiceManager} that allows
* the media mainline module to register/obtain media binder services. This is called
* by the platform during the system initialization.
*
* @param mediaServiceManager instance of {@link MediaServiceManager} that allows
* the media mainline module to register/obtain media binder services.
*/
public static void setMediaServiceManager(
@NonNull MediaServiceManager mediaServiceManager) {
if (sMediaServiceManager != null) {
throw new IllegalStateException("setMediaServiceManager called twice!");
}
if (mediaServiceManager == null) {
throw new NullPointerException("mediaServiceManager is null!");
}
sMediaServiceManager = mediaServiceManager;
}
/** @hide */
public static MediaServiceManager getMediaServiceManager() {
return sMediaServiceManager;
}
/**
* Called by {@link SystemServiceRegistry}'s static initializer and registers all media
* services to {@link Context}, so that {@link Context#getSystemService} can return them.
*
* @throws IllegalStateException if this is called from anywhere besides
* {@link SystemServiceRegistry}
*/
public static void registerServiceWrappers() {
SystemServiceRegistry.registerContextAwareService(
Context.MEDIA_TRANSCODING_SERVICE,
MediaTranscodingManager.class,
context -> new MediaTranscodingManager(context)
);
if (SdkLevel.isAtLeastS()) {
SystemServiceRegistry.registerContextAwareService(
Context.MEDIA_COMMUNICATION_SERVICE,
MediaCommunicationManager.class,
context -> new MediaCommunicationManager(context)
);
}
}
}
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