Add a way for SystemUI to receive media resource (e.g. A/V codec) usage (2034a4c4) · Commits · e / os / android_frameworks_base

Android.mk

+1 −0

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		@@ -341,6 +341,7 @@ LOCAL_SRC_FILES += \
		media/java/android/media/IAudioRoutesObserver.aidl \
		media/java/android/media/IMediaHTTPConnection.aidl \
		media/java/android/media/IMediaHTTPService.aidl \
		media/java/android/media/IMediaResourceMonitor.aidl \
		media/java/android/media/IMediaRouterClient.aidl \
		media/java/android/media/IMediaRouterService.aidl \
		media/java/android/media/IMediaScannerListener.aidl \

core/java/android/content/Intent.java

+46 −0

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		@@ -3033,6 +3033,24 @@ public class Intent implements Parcelable, Cloneable {
		*/
		public static final String ACTION_GLOBAL_BUTTON = "android.intent.action.GLOBAL_BUTTON";

		/**
		* Broadcast Action: Sent when media resource is granted.
		* <p>
		* {@link #EXTRA_PACKAGES} specifies the packages on the process holding the media resource
		* granted.
		* </p>
		* <p class="note">
		* This is a protected intent that can only be sent by the system.
		* </p>
		* <p class="note">
		* This requires the RECEIVE_MEDIA_RESOURCE_USAGE permission.
		* </p>
		*
		* @hide
		*/
		public static final String ACTION_MEDIA_RESOURCE_GRANTED =
		"android.intent.action.MEDIA_RESOURCE_GRANTED";

		/**
		* Activity Action: Allow the user to select and return one or more existing
		* documents. When invoked, the system will display the various
		@@ -4077,6 +4095,34 @@ public class Intent implements Parcelable, Cloneable {
		* Optional boolean extra indicating whether quiet mode has been switched on or off.
		*/
		public static final String EXTRA_QUIET_MODE = "android.intent.extra.QUIET_MODE";

		/**
		* Used as an int extra field in {@link android.content.Intent#ACTION_MEDIA_RESOURCE_GRANTED}
		* intents to specify the resource type granted. Possible values are
		* {@link android.content.Intent#EXTRA_MEDIA_RESOURCE_TYPE_VIDEO_CODEC} or
		* {@link android.content.Intent#EXTRA_MEDIA_RESOURCE_TYPE_AUDIO_CODEC}.
		*
		* @hide
		*/
		public static final String EXTRA_MEDIA_RESOURCE_TYPE =
		"android.intent.extra.MEDIA_RESOURCE_TYPE";

		/**
		* Used as an int value for {@link android.content.Intent#EXTRA_MEDIA_RESOURCE_TYPE}
		* to represent that a video codec is allowed to use.
		*
		* @hide
		*/
		public static final int EXTRA_MEDIA_RESOURCE_TYPE_VIDEO_CODEC = 0;

		/**
		* Used as an int value for {@link android.content.Intent#EXTRA_MEDIA_RESOURCE_TYPE}
		* to represent that a audio codec is allowed to use.
		*
		* @hide
		*/
		public static final int EXTRA_MEDIA_RESOURCE_TYPE_AUDIO_CODEC = 1;

		// ---------------------------------------------------------------------
		// ---------------------------------------------------------------------
		// Intent flags (see mFlags variable).

core/res/AndroidManifest.xml

+7 −0

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		@@ -384,6 +384,7 @@
		<protected-broadcast android:name="com.android.server.device_idle.STEP_LIGHT_IDLE_STATE" />
		<protected-broadcast android:name="com.android.server.Wifi.action.TOGGLE_PNO" />
		<protected-broadcast android:name="intent.action.ACTION_RF_BAND_INFO" />
		<protected-broadcast android:name="android.intent.action.MEDIA_RESOURCE_GRANTED" />

		<protected-broadcast android:name="android.app.action.INTERRUPTION_FILTER_CHANGED" />
		<protected-broadcast android:name="android.app.action.INTERRUPTION_FILTER_CHANGED_INTERNAL" />
		@@ -2821,6 +2822,12 @@
		<permission android:name="android.permission.ACCESS_EPHEMERAL_APPS"
		android:protectionLevel="signature" />

		<!-- Allows receiving the usage of media resource e.g. video/audio codec and
		graphic memory.
		@hide -->
		<permission android:name="android.permission.RECEIVE_MEDIA_RESOURCE_USAGE"
		android:protectionLevel="signature\|privileged" />

		<application android:process="system"
		android:persistent="true"
		android:hasCode="false"

media/java/android/media/IMediaResourceMonitor.aidl

0 → 100644

+24 −0

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		/*
		* Copyright 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 android.media;

		/** {@hide} */
		interface IMediaResourceMonitor
		{
		oneway void notifyResourceGranted(in int pid, String type, String subType, long value);
		}

services/core/java/com/android/server/media/MediaResourceMonitorService.java

0 → 100644

+103 −0

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		/*
		* 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.server.media;

		import android.app.ActivityManager;
		import android.app.ActivityManagerNative;
		import android.content.Context;
		import android.content.Intent;
		import android.media.IMediaResourceMonitor;
		import android.os.Binder;
		import android.os.RemoteException;
		import android.os.UserHandle;
		import android.util.Log;
		import android.util.Slog;
		import com.android.server.SystemService;

		import java.util.List;

		/** This class provides a system service that monitors media resource usage. */
		public class MediaResourceMonitorService extends SystemService {
		private static final String TAG = "MediaResourceMonitorService";
		private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);

		private static final String SERVICE_NAME = "media_resource_monitor";

		/*
		* Resource types. Should be in sync with:
		* frameworks/av/media/libmedia/MediaResource.cpp
		*/
		private static final String RESOURCE_AUDIO_CODEC = "audio-codec";
		private static final String RESOURCE_VIDEO_CODEC = "video-codec";

		private final MediaResourceMonitorImpl mMediaResourceMonitorImpl;

		public MediaResourceMonitorService(Context context) {
		super(context);
		mMediaResourceMonitorImpl = new MediaResourceMonitorImpl();
		}

		@Override
		public void onStart() {
		publishBinderService(SERVICE_NAME, mMediaResourceMonitorImpl);
		}

		class MediaResourceMonitorImpl extends IMediaResourceMonitor.Stub {
		@Override
		public void notifyResourceGranted(int pid, String type, String subType, long value)
		throws RemoteException {
		if (DEBUG) {
		Slog.d(TAG, "notifyResourceGranted(pid=" + pid + ", type=" + type + ", subType="
		+ subType + ", value=" + value + ")");
		}
		final long identity = Binder.clearCallingIdentity();
		try {
		String pkgNames[] = getPackageNamesFromPid(pid);
		Integer resourceType = null;
		if (RESOURCE_AUDIO_CODEC.equals(subType)) {
		resourceType = Intent.EXTRA_MEDIA_RESOURCE_TYPE_AUDIO_CODEC;
		} else if (RESOURCE_VIDEO_CODEC.equals(subType)) {
		resourceType = Intent.EXTRA_MEDIA_RESOURCE_TYPE_VIDEO_CODEC;
		}
		if (pkgNames != null && resourceType != null) {
		Intent intent = new Intent(Intent.ACTION_MEDIA_RESOURCE_GRANTED);
		intent.putExtra(Intent.EXTRA_PACKAGES, pkgNames);
		intent.putExtra(Intent.EXTRA_MEDIA_RESOURCE_TYPE, resourceType);
		getContext().sendBroadcastAsUser(intent,
		new UserHandle(ActivityManager.getCurrentUser()),
		android.Manifest.permission.RECEIVE_MEDIA_RESOURCE_USAGE);
		}
		} finally {
		Binder.restoreCallingIdentity(identity);
		}
		}

		private String[] getPackageNamesFromPid(int pid) {
		try {
		for (ActivityManager.RunningAppProcessInfo proc :
		ActivityManagerNative.getDefault().getRunningAppProcesses()) {
		if (proc.pid == pid) {
		return proc.pkgList;
		}
		}
		} catch (RemoteException e) {
		Slog.w(TAG, "ActivityManager.getRunningAppProcesses() failed");
		}
		return null;
		}
		}
		}