Merge "Introduce SystemAPI MediaProjectionGlobal" (3226bed7) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+9 −0

Original line number	Diff line number	Diff line
		@@ -6666,6 +6666,15 @@ package android.media.musicrecognition {

		}

		package android.media.projection {

		public class MediaProjectionGlobal {
		method @Nullable public android.hardware.display.VirtualDisplay createVirtualDisplay(@NonNull String, int, int, int, @Nullable android.view.Surface);
		method @NonNull public static android.media.projection.MediaProjectionGlobal getInstance();
		}

		}

		package android.media.session {

		public final class MediaSessionManager {

media/java/android/media/projection/MediaProjectionGlobal.java

0 → 100644

+120 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2022 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.projection;

		import static android.hardware.display.DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.annotation.SystemApi;
		import android.content.Context;
		import android.content.pm.IPackageManager;
		import android.hardware.display.DisplayManagerGlobal;
		import android.hardware.display.IDisplayManager;
		import android.hardware.display.VirtualDisplay;
		import android.hardware.display.VirtualDisplayConfig;
		import android.os.IBinder;
		import android.os.Process;
		import android.os.RemoteException;
		import android.os.ServiceManager;
		import android.view.Surface;

		/**
		* This is a helper for MediaProjection when requests are made from outside an application. This
		* should only be used by processes running as shell as a way to capture recordings without being
		* an application. The requests will fail if coming from any process that's not Shell.
		* @hide
		*/
		@SystemApi
		public class MediaProjectionGlobal {
		private static final Object sLock = new Object();
		private static MediaProjectionGlobal sInstance;

		/**
		* @return The instance of {@link MediaProjectionGlobal}
		*/
		@NonNull
		public static MediaProjectionGlobal getInstance() {
		synchronized (sLock) {
		if (sInstance == null) {
		final IBinder displayBinder = ServiceManager.getService(Context.DISPLAY_SERVICE);
		final IBinder packageBinder = ServiceManager.getService("package");
		if (displayBinder != null && packageBinder != null) {
		sInstance = new MediaProjectionGlobal(
		IDisplayManager.Stub.asInterface(displayBinder),
		IPackageManager.Stub.asInterface(packageBinder));
		}
		}
		return sInstance;
		}
		}

		private final IDisplayManager mDm;
		private final IPackageManager mPackageManager;

		private MediaProjectionGlobal(IDisplayManager dm, IPackageManager packageManager) {
		mDm = dm;
		mPackageManager = packageManager;
		}

		/**
		* Creates a VirtualDisplay that will mirror the content of displayIdToMirror
		* @param name The name for the virtual display
		* @param width The initial width for the virtual display
		* @param height The initial height for the virtual display
		* @param displayIdToMirror The displayId that will be mirrored into the virtual display.
		* @return VirtualDisplay that can be used to update properties.
		*/
		@Nullable
		public VirtualDisplay createVirtualDisplay(@NonNull String name, int width, int height,
		int displayIdToMirror, @Nullable Surface surface) {

		// Density doesn't matter since this virtual display is only used for mirroring.
		VirtualDisplayConfig.Builder builder = new VirtualDisplayConfig.Builder(name, width,
		height, 1 /* densityDpi */)
		.setFlags(VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR)
		.setDisplayIdToMirror(displayIdToMirror);
		if (surface != null) {
		builder.setSurface(surface);
		}
		VirtualDisplayConfig virtualDisplayConfig = builder.build();

		String[] packages;
		try {
		packages = mPackageManager.getPackagesForUid(Process.myUid());
		} catch (RemoteException ex) {
		throw ex.rethrowFromSystemServer();
		}

		// Just use the first one since it just needs to match the package when looking it up by
		// calling UID in system server.
		// The call may come from a rooted device, in that case the requesting uid will be root so
		// it will not have any package name
		String packageName = packages == null ? null : packages[0];
		DisplayManagerGlobal.VirtualDisplayCallback
		callbackWrapper = new DisplayManagerGlobal.VirtualDisplayCallback(null, null);
		int displayId;
		try {
		displayId = mDm.createVirtualDisplay(virtualDisplayConfig, callbackWrapper, null,
		packageName);
		} catch (RemoteException ex) {
		throw ex.rethrowFromSystemServer();
		}
		return DisplayManagerGlobal.getInstance().createVirtualDisplayWrapper(virtualDisplayConfig,
		null, callbackWrapper, displayId);
		}
		}

packages/Shell/AndroidManifest.xml

+1 −0

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		@@ -180,6 +180,7 @@
		<uses-permission android:name="android.permission.MANAGE_ROLLBACKS" />
		<uses-permission android:name="android.permission.TEST_MANAGE_ROLLBACKS" />
		<uses-permission android:name="android.permission.ACCESS_SURFACE_FLINGER" />
		<uses-permission android:name="android.permission.CAPTURE_VIDEO_OUTPUT" />
		<uses-permission android:name="android.permission.READ_FRAME_BUFFER" />
		<uses-permission android:name="android.permission.REBOOT" />
		<uses-permission android:name="android.permission.DEVICE_POWER" />

services/core/java/com/android/server/display/DisplayManagerService.java

+5 −0

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		@@ -35,6 +35,7 @@ import static android.hardware.display.DisplayManagerGlobal.DisplayEvent;
		import static android.hardware.display.DisplayViewport.VIEWPORT_EXTERNAL;
		import static android.hardware.display.DisplayViewport.VIEWPORT_INTERNAL;
		import static android.hardware.display.DisplayViewport.VIEWPORT_VIRTUAL;
		import static android.os.Process.ROOT_UID;

		import android.Manifest;
		import android.annotation.NonNull;
		@@ -1172,6 +1173,10 @@ public final class DisplayManagerService extends SystemService {
		}

		private boolean validatePackageName(int uid, String packageName) {
		// Root doesn't have a package name.
		if (uid == ROOT_UID) {
		return true;
		}
		if (packageName != null) {
		String[] packageNames = mContext.getPackageManager().getPackagesForUid(uid);
		if (packageNames != null) {