AudioService: test mic muting API behavior with errors (25b0e6bb) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/audio/AudioService.java

+41 −12

Original line number	Diff line number	Diff line
		@@ -185,6 +185,9 @@ public class AudioService extends IAudioService.Stub

		private static final String TAG = "AS.AudioService";

		private final AudioSystemAdapter mAudioSystem;
		private final SystemServerAdapter mSystemServer;

		/** Debug audio mode */
		protected static final boolean DEBUG_MODE = false;

		@@ -649,10 +652,19 @@ public class AudioService extends IAudioService.Stub

		/** @hide */
		public AudioService(Context context) {
		this(context, AudioSystemAdapter.getDefaultAdapter(),
		SystemServerAdapter.getDefaultAdapter(context));
		}

		public AudioService(Context context, AudioSystemAdapter audioSystem,
		SystemServerAdapter systemServer) {
		mContext = context;
		mContentResolver = context.getContentResolver();
		mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);

		mAudioSystem = audioSystem;
		mSystemServer = systemServer;

		mPlatformType = AudioSystem.getPlatformType(context);

		mIsSingleVolume = AudioSystem.isSingleVolume(context);
		@@ -842,11 +854,13 @@ public class AudioService extends IAudioService.Stub

		context.registerReceiverAsUser(mReceiver, UserHandle.ALL, intentFilter, null, null);

		if (mSystemServer.isPrivileged()) {
		LocalServices.addService(AudioManagerInternal.class, new AudioServiceInternal());

		mUserManagerInternal.addUserRestrictionsListener(mUserRestrictionsListener);

		mRecordMonitor.initMonitor();
		}

		final float[] preScale = new float[3];
		preScale[0] = mContext.getResources().getFraction(
		@@ -935,7 +949,7 @@ public class AudioService extends IAudioService.Stub

		onIndicateSystemReady();

		mMicMuteFromSystemCached = AudioSystem.isMicrophoneMuted();
		mMicMuteFromSystemCached = mAudioSystem.isMicrophoneMuted();
		setMicMuteFromSwitchInput();
		}

		@@ -1636,12 +1650,15 @@ public class AudioService extends IAudioService.Stub
		}

		if (currentImeUid != mCurrentImeUid \|\| forceUpdate) {
		AudioSystem.setCurrentImeUid(currentImeUid);
		mAudioSystem.setCurrentImeUid(currentImeUid);
		mCurrentImeUid = currentImeUid;
		}
		}

		private void readPersistedSettings() {
		if (!mSystemServer.isPrivileged()) {
		return;
		}
		final ContentResolver cr = mContentResolver;

		int ringerModeFromSettings =
		@@ -1712,6 +1729,9 @@ public class AudioService extends IAudioService.Stub
		}

		private void readUserRestrictions() {
		if (!mSystemServer.isPrivileged()) {
		return;
		}
		final int currentUser = getCurrentUserId();

		// Check the current user restriction.
		@@ -2782,6 +2802,9 @@ public class AudioService extends IAudioService.Stub
		}

		private void sendBroadcastToAll(Intent intent) {
		if (!mSystemServer.isPrivileged()) {
		return;
		}
		intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
		intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
		final long ident = Binder.clearCallingIdentity();
		@@ -3174,12 +3197,12 @@ public class AudioService extends IAudioService.Stub
		}
		// only mute for the current user
		if (getCurrentUserId() == userId \|\| userId == android.os.Process.SYSTEM_UID) {
		final boolean currentMute = AudioSystem.isMicrophoneMuted();
		final boolean currentMute = mAudioSystem.isMicrophoneMuted();
		final long identity = Binder.clearCallingIdentity();
		final int ret = AudioSystem.muteMicrophone(muted);
		final int ret = mAudioSystem.muteMicrophone(muted);

		// update cache with the real state independently from what was set
		mMicMuteFromSystemCached = AudioSystem.isMicrophoneMuted();
		mMicMuteFromSystemCached = mAudioSystem.isMicrophoneMuted();
		if (ret != AudioSystem.AUDIO_STATUS_OK) {
		Log.e(TAG, "Error changing mic mute state to " + muted + " current:"
		+ mMicMuteFromSystemCached);
		@@ -4518,6 +4541,9 @@ public class AudioService extends IAudioService.Stub
		}

		private void broadcastRingerMode(String action, int ringerMode) {
		if (!mSystemServer.isPrivileged()) {
		return;
		}
		// Send sticky broadcast
		Intent broadcast = new Intent(action);
		broadcast.putExtra(AudioManager.EXTRA_RINGER_MODE, ringerMode);
		@@ -4527,6 +4553,9 @@ public class AudioService extends IAudioService.Stub
		}

		private void broadcastVibrateSetting(int vibrateType) {
		if (!mSystemServer.isPrivileged()) {
		return;
		}
		// Send broadcast
		if (mActivityManagerInternal.isSystemReady()) {
		Intent broadcast = new Intent(AudioManager.VIBRATE_SETTING_CHANGED_ACTION);
		@@ -5258,6 +5287,9 @@ public class AudioService extends IAudioService.Stub
		}

		public int observeDevicesForStream_syncVSS(boolean checkOthers) {
		if (!mSystemServer.isPrivileged()) {
		return AudioSystem.DEVICE_NONE;
		}
		final int devices = AudioSystem.getDevicesForStream(mStreamType);
		if (devices == mObservedDevices) {
		return devices;
		@@ -5998,10 +6030,7 @@ public class AudioService extends IAudioService.Stub
		break;

		case MSG_BROADCAST_MICROPHONE_MUTE:
		mContext.sendBroadcastAsUser(
		new Intent(AudioManager.ACTION_MICROPHONE_MUTE_CHANGED)
		.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY),
		UserHandle.ALL);
		mSystemServer.sendMicrophoneMuteChangedIntent();
		break;
		}
		}

services/core/java/com/android/server/audio/AudioSystemAdapter.java

+65 −4

Original line number	Diff line number	Diff line
		@@ -40,10 +40,11 @@ public class AudioSystemAdapter {

		/**
		* Create an adapter for AudioSystem that always succeeds, and does nothing.
		* @return a no-op AudioSystem adapter
		* Overridden methods can be configured
		* @return a no-op AudioSystem adapter with configurable adapter
		*/
		static final @NonNull AudioSystemAdapter getAlwaysOkAdapter() {
		return new AudioSystemOkAdapter();
		static final @NonNull AudioSystemAdapter getConfigurableAdapter() {
		return new AudioSystemConfigurableAdapter();
		}

		/**
		@@ -113,10 +114,51 @@ public class AudioSystemAdapter {
		return AudioSystem.setParameters(keyValuePairs);
		}

		/**
		* Same as {@link AudioSystem#isMicrophoneMuted()}}
		* Checks whether the microphone mute is on or off.
		* @return true if microphone is muted, false if it's not
		*/
		public boolean isMicrophoneMuted() {
		return AudioSystem.isMicrophoneMuted();
		}

		/**
		* Same as {@link AudioSystem#muteMicrophone(boolean)}
		* Sets the microphone mute on or off.
		*
		* @param on set <var>true</var> to mute the microphone;
		* <var>false</var> to turn mute off
		* @return command completion status see AUDIO_STATUS_OK, see AUDIO_STATUS_ERROR
		*/
		public int muteMicrophone(boolean on) {
		return AudioSystem.muteMicrophone(on);
		}

		/**
		* Same as {@link AudioSystem#setCurrentImeUid(int)}
		* Communicate UID of current InputMethodService to audio policy service.
		*/
		public int setCurrentImeUid(int uid) {
		return AudioSystem.setCurrentImeUid(uid);
		}

		//--------------------------------------------------------------------
		protected static class AudioSystemOkAdapter extends AudioSystemAdapter {
		protected static class AudioSystemConfigurableAdapter extends AudioSystemAdapter {
		private static final String TAG = "ASA";
		private boolean mIsMicMuted = false;
		private boolean mMuteMicrophoneFails = false;

		public void configureIsMicrophoneMuted(boolean muted) {
		mIsMicMuted = muted;
		}

		public void configureMuteMicrophoneToFail(boolean fail) {
		mMuteMicrophoneFails = fail;
		}

		//-----------------------------------------------------------------
		// Overrides of AudioSystemAdapter
		@Override
		public int setDeviceConnectionState(int device, int state, String deviceAddress,
		String deviceName, int codecFormat) {
		@@ -152,5 +194,24 @@ public class AudioSystemAdapter {
		public int setParameters(String keyValuePairs) {
		return AudioSystem.AUDIO_STATUS_OK;
		}

		@Override
		public boolean isMicrophoneMuted() {
		return mIsMicMuted;
		}

		@Override
		public int muteMicrophone(boolean on) {
		if (mMuteMicrophoneFails) {
		return AudioSystem.AUDIO_STATUS_ERROR;
		}
		mIsMicMuted = on;
		return AudioSystem.AUDIO_STATUS_OK;
		}

		@Override
		public int setCurrentImeUid(int uid) {
		return AudioSystem.AUDIO_STATUS_OK;
		}
		}
		}

services/core/java/com/android/server/audio/SystemServerAdapter.java

0 → 100644

+90 −0

Original line number	Diff line number	Diff line
		/*
		* 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 com.android.server.audio;

		import android.annotation.NonNull;
		import android.annotation.Nullable;
		import android.content.Context;
		import android.content.Intent;
		import android.media.AudioManager;
		import android.os.UserHandle;

		/**
		* Provides an adapter to access functionality reserved to components running in system_server
		* Functionality such as sending privileged broadcasts is to be accessed through the default
		* adapter, whereas tests can inject a no-op adapter.
		*/
		public class SystemServerAdapter {

		protected final Context mContext;

		private SystemServerAdapter(@Nullable Context context) {
		mContext = context;
		}
		/**
		* Create a wrapper around privileged functionality.
		* @return the adapter
		*/
		static final @NonNull SystemServerAdapter getDefaultAdapter(Context context) {
		return new SystemServerAdapter(context);
		}

		/**
		* Create an adapter that does nothing.
		* Use for running non-privileged tests, such as unit tests
		* @return a no-op adapter
		*/
		static final @NonNull SystemServerAdapter getNoOpAdapter() {
		return new NoOpSystemServerAdapter();
		}

		/**
		* @return true if this is supposed to be run in system_server, false otherwise (e.g. for a
		* unit test)
		*/
		public boolean isPrivileged() {
		return true;
		}

		/**
		* Broadcast ACTION_MICROPHONE_MUTE_CHANGED
		*/
		public void sendMicrophoneMuteChangedIntent() {
		mContext.sendBroadcastAsUser(
		new Intent(AudioManager.ACTION_MICROPHONE_MUTE_CHANGED)
		.setFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY),
		UserHandle.ALL);
		}

		//--------------------------------------------------------------------
		protected static class NoOpSystemServerAdapter extends SystemServerAdapter {

		NoOpSystemServerAdapter() {
		super(null);
		}

		@Override
		public boolean isPrivileged() {
		return false;
		}

		@Override
		public void sendMicrophoneMuteChangedIntent() {
		// no-op
		}
		}
		}

services/tests/servicestests/AndroidManifest.xml

+1 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,7 @@
		<uses-permission android:name="android.permission.DUMP"/>
		<uses-permission android:name="android.permission.READ_DREAM_STATE"/>
		<uses-permission android:name="android.permission.WRITE_DREAM_STATE"/>
		<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/>

		<!-- Uses API introduced in O (26) -->
		<uses-sdk android:minSdkVersion="1"

services/tests/servicestests/src/com/android/server/audio/AudioDeviceBrokerTest.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -66,7 +66,7 @@ public class AudioDeviceBrokerTest {
		mContext = InstrumentationRegistry.getTargetContext();

		mMockAudioService = mock(AudioService.class);
		mSpyAudioSystem = spy(AudioSystemAdapter.getAlwaysOkAdapter());
		mSpyAudioSystem = spy(AudioSystemAdapter.getConfigurableAdapter());
		mSpyDevInventory = spy(new AudioDeviceInventory(mSpyAudioSystem));
		mAudioDeviceBroker = new AudioDeviceBroker(mContext, mMockAudioService, mSpyDevInventory);
		mSpyDevInventory.setDeviceBroker(mAudioDeviceBroker);