AudioManager: Add communication device management APIs am: f39726f262 am: 890a5d474c (cb629524) · Commits · e / os / android_frameworks_base

core/api/current.txt

+9 −0

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		@@ -19373,14 +19373,17 @@ package android.media {
		public class AudioManager {
		method @Deprecated public int abandonAudioFocus(android.media.AudioManager.OnAudioFocusChangeListener);
		method public int abandonAudioFocusRequest(@NonNull android.media.AudioFocusRequest);
		method public void addOnCommunicationDeviceChangedListener(@NonNull java.util.concurrent.Executor, @NonNull android.media.AudioManager.OnCommunicationDeviceChangedListener);
		method public void adjustStreamVolume(int, int, int);
		method public void adjustSuggestedStreamVolume(int, int, int);
		method public void adjustVolume(int, int);
		method public void clearDeviceForCommunication();
		method public void dispatchMediaKeyEvent(android.view.KeyEvent);
		method public int generateAudioSessionId();
		method @NonNull public java.util.List<android.media.AudioPlaybackConfiguration> getActivePlaybackConfigurations();
		method @NonNull public java.util.List<android.media.AudioRecordingConfiguration> getActiveRecordingConfigurations();
		method public int getAllowedCapturePolicy();
		method @Nullable public android.media.AudioDeviceInfo getDeviceForCommunication();
		method public android.media.AudioDeviceInfo[] getDevices(int);
		method public java.util.List<android.media.MicrophoneInfo> getMicrophones() throws java.io.IOException;
		method public int getMode();
		@@ -19415,11 +19418,13 @@ package android.media {
		method @Deprecated public void registerMediaButtonEventReceiver(android.app.PendingIntent);
		method @Deprecated public void registerRemoteControlClient(android.media.RemoteControlClient);
		method @Deprecated public boolean registerRemoteController(android.media.RemoteController);
		method public void removeOnCommunicationDeviceChangedListener(@NonNull android.media.AudioManager.OnCommunicationDeviceChangedListener);
		method @Deprecated public int requestAudioFocus(android.media.AudioManager.OnAudioFocusChangeListener, int, int);
		method public int requestAudioFocus(@NonNull android.media.AudioFocusRequest);
		method public void setAllowedCapturePolicy(int);
		method @Deprecated public void setBluetoothA2dpOn(boolean);
		method public void setBluetoothScoOn(boolean);
		method public boolean setDeviceForCommunication(@NonNull android.media.AudioDeviceInfo);
		method public void setMicrophoneMute(boolean);
		method public void setMode(int);
		method public void setParameters(String);
		@@ -19554,6 +19559,10 @@ package android.media {
		method public void onAudioFocusChange(int);
		}

		public static interface AudioManager.OnCommunicationDeviceChangedListener {
		method public void onCommunicationDeviceChanged(@Nullable android.media.AudioDeviceInfo);
		}

		public final class AudioMetadata {
		method @NonNull public static android.media.AudioMetadataMap createMap();
		}

core/api/test-current.txt

+1 −0

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		@@ -850,6 +850,7 @@ package android.media {
		}

		public class AudioManager {
		method @Nullable public static android.media.AudioDeviceInfo getDeviceInfoFromType(int);
		method public boolean hasRegisteredDynamicPolicy();
		}

media/java/android/media/AudioManager.java

+314 −0

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		@@ -6123,6 +6123,29 @@ public class AudioManager {
		return infoListFromPortList(ports, flags);
		}

		/**
		* Returns an {@link AudioDeviceInfo} corresponding to the specified {@link AudioPort} ID.
		* @param portId The audio port ID to look up for.
		* @param flags A set of bitflags specifying the criteria to test.
		* @see #GET_DEVICES_OUTPUTS
		* @see #GET_DEVICES_INPUTS
		* @see #GET_DEVICES_ALL
		* @return An AudioDeviceInfo or null if no device with matching port ID is found.
		* @hide
		*/
		public static AudioDeviceInfo getDeviceForPortId(int portId, int flags) {
		if (portId == 0) {
		return null;
		}
		AudioDeviceInfo[] devices = getDevicesStatic(flags);
		for (AudioDeviceInfo device : devices) {
		if (device.getId() == portId) {
		return device;
		}
		}
		return null;
		}

		/**
		* Registers an {@link AudioDeviceCallback} object to receive notifications of changes
		* to the set of connected audio devices.
		@@ -6666,6 +6689,297 @@ public class AudioManager {
		}
		}

		/**
		* Selects the audio device that should be used for communication use cases, for instance voice
		* or video calls. This method can be used by voice or video chat applications to select a
		* different audio device than the one selected by default by the platform.
		* <p>The device selection is expressed as an {@link AudioDeviceInfo}, of role sink
		* ({@link AudioDeviceInfo#isSink()} is <code>true</code>) and of one of the following types:
		* <ul>
		* <li> {@link AudioDeviceInfo#TYPE_BUILTIN_EARPIECE}
		* <li> {@link AudioDeviceInfo#TYPE_BUILTIN_SPEAKER}
		* <li> {@link AudioDeviceInfo#TYPE_WIRED_HEADSET}
		* <li> {@link AudioDeviceInfo#TYPE_BLUETOOTH_SCO}
		* <li> {@link AudioDeviceInfo#TYPE_USB_HEADSET}
		* <li> {@link AudioDeviceInfo#TYPE_BLE_HEADSET}
		* </ul>
		* The selection is active as long as the requesting application lives, until
		* {@link #clearDeviceForCommunication} is called or until the device is disconnected.
		* It is therefore important for applications to clear the request when a call ends or the
		* application is paused.
		* <p>In case of simultaneous requests by multiple applications the priority is given to the
		* application currently controlling the audio mode (see {@link #setMode(int)}). This is the
		* latest application having selected mode {@link #MODE_IN_COMMUNICATION} or mode
		* {@link #MODE_IN_CALL}. Note that <code>MODE_IN_CALL</code> can only be selected by the main
		* telephony application with permission
		* {@link android.Manifest.permission#MODIFY_PHONE_STATE}.
		* <p> If the requested devices is not currently available, the request will be rejected and
		* the method will return false.
		* <p>This API replaces the following deprecated APIs:
		* <ul>
		* <li> {@link #startBluetoothSco()}
		* <li> {@link #stopBluetoothSco()}
		* <li> {@link #setSpeakerphoneOn(boolean)}
		* </ul>
		* <h4>Example</h4>
		* <p>The example below shows how to enable and disable speakerphone mode.
		* <pre class="prettyprint">
		* // Get an AudioManager instance
		* AudioManager audioManager = Context.getSystemService(AudioManager.class);
		* try {
		* AudioDeviceInfo speakerDevice = null;
		* AudioDeviceInfo[] devices = audioManager.getDevices(GET_DEVICES_OUTPUTS);
		* for (AudioDeviceInfo device : devices) {
		* if (device.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
		* speakerDevice = device;
		* break;
		* }
		* }
		* if (speakerDevice != null) {
		* // Turn speakerphone ON.
		* boolean result = audioManager.setDeviceForCommunication(speakerDevice);
		* if (!result) {
		* // Handle error.
		* }
		* // Turn speakerphone OFF.
		* audioManager.clearDeviceForCommunication();
		* }
		* } catch (IllegalArgumentException e) {
		* // Handle exception.
		* }
		* </pre>
		* @param device the requested audio device.
		* @return <code>true</code> if the request was accepted, <code>false</code> otherwise.
		* @throws IllegalArgumentException If an invalid device is specified.
		*/
		public boolean setDeviceForCommunication(@NonNull AudioDeviceInfo device) {
		Objects.requireNonNull(device);
		try {
		if (device.getId() == 0) {
		throw new IllegalArgumentException("In valid device: " + device);
		}
		return getService().setDeviceForCommunication(mICallBack, device.getId());
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* Cancels previous communication device selection made with
		* {@link #setDeviceForCommunication(AudioDeviceInfo)}.
		*/
		public void clearDeviceForCommunication() {
		try {
		getService().setDeviceForCommunication(mICallBack, 0);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* Returns currently selected audio device for communication.
		* <p>This API replaces the following deprecated APIs:
		* <ul>
		* <li> {@link #isBluetoothScoOn()}
		* <li> {@link #isSpeakerphoneOn()}
		* </ul>
		* @return an {@link AudioDeviceInfo} indicating which audio device is
		* currently selected or communication use cases or null if default selection
		* is used.
		*/
		@Nullable
		public AudioDeviceInfo getDeviceForCommunication() {
		try {
		return getDeviceForPortId(
		getService().getDeviceForCommunication(), GET_DEVICES_OUTPUTS);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}

		/**
		* @hide
		* Returns an {@link AudioDeviceInfo} corresponding to a connected device of the type provided.
		* The type must be a valid output type defined in <code>AudioDeviceInfo</code> class,
		* for instance {@link AudioDeviceInfo#TYPE_BUILTIN_SPEAKER}.
		* The method will return null if no device of the provided type is connected.
		* If more than one device of the provided type is connected, an object corresponding to the
		* first device encountered in the enumeration list will be returned.
		* @param deviceType The device device for which an <code>AudioDeviceInfo</code>
		* object is queried.
		* @return An AudioDeviceInfo object or null if no device with the requested type is connected.
		* @throws IllegalArgumentException If an invalid device type is specified.
		*/
		@TestApi
		@Nullable
		public static AudioDeviceInfo getDeviceInfoFromType(
		@AudioDeviceInfo.AudioDeviceTypeOut int deviceType) {
		AudioDeviceInfo[] devices = getDevicesStatic(GET_DEVICES_OUTPUTS);
		for (AudioDeviceInfo device : devices) {
		if (device.getType() == deviceType) {
		return device;
		}
		}
		return null;
		}

		/**
		* Listener registered by client to be notified upon communication audio device change.
		* See {@link #setDeviceForCommunication(AudioDeviceInfo)}.
		*/
		public interface OnCommunicationDeviceChangedListener {
		/**
		* Callback method called upon communication audio device change.
		* @param device the audio device selected for communication use cases
		*/
		void onCommunicationDeviceChanged(@Nullable AudioDeviceInfo device);
		}

		/**
		* Adds a listener for being notified of changes to the communication audio device.
		* See {@link #setDeviceForCommunication(AudioDeviceInfo)}.
		* @param executor
		* @param listener
		*/
		public void addOnCommunicationDeviceChangedListener(
		@NonNull @CallbackExecutor Executor executor,
		@NonNull OnCommunicationDeviceChangedListener listener) {
		Objects.requireNonNull(executor);
		Objects.requireNonNull(listener);
		synchronized (mCommDevListenerLock) {
		if (hasCommDevListener(listener)) {
		throw new IllegalArgumentException(
		"attempt to call addOnCommunicationDeviceChangedListener() "
		+ "on a previously registered listener");
		}
		// lazy initialization of the list of strategy-preferred device listener
		if (mCommDevListeners == null) {
		mCommDevListeners = new ArrayList<>();
		}
		final int oldCbCount = mCommDevListeners.size();
		mCommDevListeners.add(new CommDevListenerInfo(listener, executor));
		if (oldCbCount == 0 && mCommDevListeners.size() > 0) {
		// register binder for callbacks
		if (mCommDevDispatcherStub == null) {
		mCommDevDispatcherStub = new CommunicationDeviceDispatcherStub();
		}
		try {
		getService().registerCommunicationDeviceDispatcher(mCommDevDispatcherStub);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		}
		}
		}

		/**
		* Removes a previously added listener of changes to the communication audio device.
		* See {@link #setDeviceForCommunication(AudioDeviceInfo)}.
		* @param listener
		*/
		public void removeOnCommunicationDeviceChangedListener(
		@NonNull OnCommunicationDeviceChangedListener listener) {
		Objects.requireNonNull(listener);
		synchronized (mCommDevListenerLock) {
		if (!removeCommDevListener(listener)) {
		throw new IllegalArgumentException(
		"attempt to call removeOnCommunicationDeviceChangedListener() "
		+ "on an unregistered listener");
		}
		if (mCommDevListeners.size() == 0) {
		// unregister binder for callbacks
		try {
		getService().unregisterCommunicationDeviceDispatcher(
		mCommDevDispatcherStub);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		} finally {
		mCommDevDispatcherStub = null;
		mCommDevListeners = null;
		}
		}
		}
		}

		private final Object mCommDevListenerLock = new Object();
		/**
		* List of listeners for preferred device for strategy and their associated Executor.
		* List is lazy-initialized on first registration
		*/
		@GuardedBy("mCommDevListenerLock")
		private @Nullable ArrayList<CommDevListenerInfo> mCommDevListeners;

		private static class CommDevListenerInfo {
		final @NonNull OnCommunicationDeviceChangedListener mListener;
		final @NonNull Executor mExecutor;

		CommDevListenerInfo(OnCommunicationDeviceChangedListener listener, Executor exe) {
		mListener = listener;
		mExecutor = exe;
		}
		}

		@GuardedBy("mCommDevListenerLock")
		private CommunicationDeviceDispatcherStub mCommDevDispatcherStub;

		private final class CommunicationDeviceDispatcherStub
		extends ICommunicationDeviceDispatcher.Stub {

		@Override
		public void dispatchCommunicationDeviceChanged(int portId) {
		// make a shallow copy of listeners so callback is not executed under lock
		final ArrayList<CommDevListenerInfo> commDevListeners;
		synchronized (mCommDevListenerLock) {
		if (mCommDevListeners == null \|\| mCommDevListeners.size() == 0) {
		return;
		}
		commDevListeners = (ArrayList<CommDevListenerInfo>) mCommDevListeners.clone();
		}
		AudioDeviceInfo device = getDeviceForPortId(portId, GET_DEVICES_OUTPUTS);
		final long ident = Binder.clearCallingIdentity();
		try {
		for (CommDevListenerInfo info : commDevListeners) {
		info.mExecutor.execute(() ->
		info.mListener.onCommunicationDeviceChanged(device));
		}
		} finally {
		Binder.restoreCallingIdentity(ident);
		}
		}
		}

		@GuardedBy("mCommDevListenerLock")
		private @Nullable CommDevListenerInfo getCommDevListenerInfo(
		OnCommunicationDeviceChangedListener listener) {
		if (mCommDevListeners == null) {
		return null;
		}
		for (CommDevListenerInfo info : mCommDevListeners) {
		if (info.mListener == listener) {
		return info;
		}
		}
		return null;
		}

		@GuardedBy("mCommDevListenerLock")
		private boolean hasCommDevListener(OnCommunicationDeviceChangedListener listener) {
		return getCommDevListenerInfo(listener) != null;
		}

		@GuardedBy("mCommDevListenerLock")
		/**
		* @return true if the listener was removed from the list
		*/
		private boolean removeCommDevListener(OnCommunicationDeviceChangedListener listener) {
		final CommDevListenerInfo infoToRemove = getCommDevListenerInfo(listener);
		if (infoToRemove != null) {
		mCommDevListeners.remove(infoToRemove);
		return true;
		}
		return false;
		}

		//---------------------------------------------------------
		// Inner classes
		//--------------------

media/java/android/media/IAudioService.aidl

+10 −0

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		@@ -27,6 +27,7 @@ import android.media.IAudioFocusDispatcher;
		import android.media.IAudioRoutesObserver;
		import android.media.IAudioServerStateDispatcher;
		import android.media.ICapturePresetDevicesRoleDispatcher;
		import android.media.ICommunicationDeviceDispatcher;
		import android.media.IPlaybackConfigDispatcher;
		import android.media.IRecordingConfigDispatcher;
		import android.media.IRingtonePlayer;
		@@ -320,4 +321,13 @@ interface IAudioService {

		oneway void unregisterCapturePresetDevicesRoleDispatcher(
		ICapturePresetDevicesRoleDispatcher dispatcher);

		boolean setDeviceForCommunication(IBinder cb, int portId);

		int getDeviceForCommunication();

		void registerCommunicationDeviceDispatcher(ICommunicationDeviceDispatcher dispatcher);

		oneway void unregisterCommunicationDeviceDispatcher(
		ICommunicationDeviceDispatcher dispatcher);
		}

media/java/android/media/ICommunicationDeviceDispatcher.aidl

0 → 100644

+28 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 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;

		/**
		* AIDL for AudioService to signal audio communication device updates.
		*
		* {@hide}
		*/
		oneway interface ICommunicationDeviceDispatcher {

		void dispatchCommunicationDeviceChanged(int portId);

		}