Merge "Subscribe to AudioManager to listen to currently selected device" into udc-dev (f3e6c5d0) · Commits · e / os / android_frameworks_base

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

0 → 100644

+112 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 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.annotation.NonNull;
		import android.annotation.Nullable;
		import android.media.AudioAttributes;
		import android.media.AudioDeviceAttributes;
		import android.media.AudioDeviceInfo;
		import android.media.MediaRoute2Info;

		/* package */ final class AudioAttributesUtils {

		/* package */ static final AudioAttributes ATTRIBUTES_MEDIA = new AudioAttributes.Builder()
		.setUsage(AudioAttributes.USAGE_MEDIA)
		.build();

		private AudioAttributesUtils() {
		// no-op to prevent instantiation.
		}

		@MediaRoute2Info.Type
		/* package */ static int mapToMediaRouteType(
		@NonNull AudioDeviceAttributes audioDeviceAttributes) {
		switch (audioDeviceAttributes.getType()) {
		case AudioDeviceInfo.TYPE_BUILTIN_EARPIECE:
		case AudioDeviceInfo.TYPE_BUILTIN_SPEAKER:
		return MediaRoute2Info.TYPE_BUILTIN_SPEAKER;
		case AudioDeviceInfo.TYPE_WIRED_HEADSET:
		return MediaRoute2Info.TYPE_WIRED_HEADSET;
		case AudioDeviceInfo.TYPE_WIRED_HEADPHONES:
		return MediaRoute2Info.TYPE_WIRED_HEADPHONES;
		case AudioDeviceInfo.TYPE_DOCK:
		case AudioDeviceInfo.TYPE_DOCK_ANALOG:
		return MediaRoute2Info.TYPE_DOCK;
		case AudioDeviceInfo.TYPE_HDMI:
		return MediaRoute2Info.TYPE_HDMI;
		case AudioDeviceInfo.TYPE_USB_DEVICE:
		return MediaRoute2Info.TYPE_USB_DEVICE;
		case AudioDeviceInfo.TYPE_BLUETOOTH_A2DP:
		return MediaRoute2Info.TYPE_BLUETOOTH_A2DP;
		case AudioDeviceInfo.TYPE_BLE_HEADSET:
		return MediaRoute2Info.TYPE_BLE_HEADSET;
		case AudioDeviceInfo.TYPE_HEARING_AID:
		return MediaRoute2Info.TYPE_HEARING_AID;
		default:
		return MediaRoute2Info.TYPE_UNKNOWN;
		}
		}


		/* package */ static boolean isDeviceOutputAttributes(
		@Nullable AudioDeviceAttributes audioDeviceAttributes) {
		if (audioDeviceAttributes == null) {
		return false;
		}

		if (audioDeviceAttributes.getRole() != AudioDeviceAttributes.ROLE_OUTPUT) {
		return false;
		}

		switch (audioDeviceAttributes.getType()) {
		case AudioDeviceInfo.TYPE_BUILTIN_EARPIECE:
		case AudioDeviceInfo.TYPE_BUILTIN_SPEAKER:
		case AudioDeviceInfo.TYPE_WIRED_HEADSET:
		case AudioDeviceInfo.TYPE_WIRED_HEADPHONES:
		case AudioDeviceInfo.TYPE_DOCK:
		case AudioDeviceInfo.TYPE_DOCK_ANALOG:
		case AudioDeviceInfo.TYPE_HDMI:
		case AudioDeviceInfo.TYPE_USB_DEVICE:
		return true;
		default:
		return false;
		}
		}

		/* package */ static boolean isBluetoothOutputAttributes(
		@Nullable AudioDeviceAttributes audioDeviceAttributes) {
		if (audioDeviceAttributes == null) {
		return false;
		}

		if (audioDeviceAttributes.getRole() != AudioDeviceAttributes.ROLE_OUTPUT) {
		return false;
		}

		switch (audioDeviceAttributes.getType()) {
		case AudioDeviceInfo.TYPE_BLUETOOTH_A2DP:
		case AudioDeviceInfo.TYPE_BLE_HEADSET:
		case AudioDeviceInfo.TYPE_BLE_SPEAKER:
		case AudioDeviceInfo.TYPE_HEARING_AID:
		return true;
		default:
		return false;
		}
		}

		}

services/core/java/com/android/server/media/SystemMediaRoute2Provider.java

+51 −0

Original line number	Diff line number	Diff line
		@@ -16,11 +16,14 @@

		package com.android.server.media;

		import android.annotation.NonNull;
		import android.content.BroadcastReceiver;
		import android.content.ComponentName;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.media.AudioAttributes;
		import android.media.AudioDeviceAttributes;
		import android.media.AudioManager;
		import android.media.MediaRoute2Info;
		import android.media.MediaRoute2ProviderInfo;
		@@ -37,6 +40,7 @@ import android.util.Slog;

		import com.android.internal.annotations.GuardedBy;

		import java.util.List;
		import java.util.Objects;

		/**
		@@ -71,6 +75,26 @@ class SystemMediaRoute2Provider extends MediaRoute2Provider {
		private final AudioManagerBroadcastReceiver mAudioReceiver =
		new AudioManagerBroadcastReceiver();

		private final AudioManager.OnDevicesForAttributesChangedListener
		mOnDevicesForAttributesChangedListener =
		new AudioManager.OnDevicesForAttributesChangedListener() {
		@Override
		public void onDevicesForAttributesChanged(@NonNull AudioAttributes attributes,
		@NonNull List<AudioDeviceAttributes> devices) {
		if (attributes.getUsage() != AudioAttributes.USAGE_MEDIA) {
		return;
		}

		mHandler.post(() -> {
		updateSelectedAudioDevice(devices);
		notifyProviderState();
		if (updateSessionInfosIfNeeded()) {
		notifySessionInfoUpdated();
		}
		});
		}
		};

		private final Object mRequestLock = new Object();
		@GuardedBy("mRequestLock")
		private volatile SessionCreationRequest mPendingSessionCreationRequest;
		@@ -100,8 +124,15 @@ class SystemMediaRoute2Provider extends MediaRoute2Provider {
		});
		});

		mAudioManager.addOnDevicesForAttributesChangedListener(
		AudioAttributesUtils.ATTRIBUTES_MEDIA, mContext.getMainExecutor(),
		mOnDevicesForAttributesChangedListener);

		// These methods below should be called after all fields are initialized, as they
		// access the fields inside.
		List<AudioDeviceAttributes> devices =
		mAudioManager.getDevicesForAttributes(AudioAttributesUtils.ATTRIBUTES_MEDIA);
		updateSelectedAudioDevice(devices);
		updateProviderState();
		updateSessionInfosIfNeeded();
		}
		@@ -239,6 +270,26 @@ class SystemMediaRoute2Provider extends MediaRoute2Provider {
		}
		}

		private void updateSelectedAudioDevice(@NonNull List<AudioDeviceAttributes> devices) {
		if (devices.isEmpty()) {
		Slog.w(TAG, "The list of preferred devices was empty.");
		return;
		}

		AudioDeviceAttributes audioDeviceAttributes = devices.get(0);

		if (AudioAttributesUtils.isDeviceOutputAttributes(audioDeviceAttributes)) {
		mDeviceRouteController.selectRoute(
		AudioAttributesUtils.mapToMediaRouteType(audioDeviceAttributes));
		mBluetoothRouteController.selectRoute(null);
		} else if (AudioAttributesUtils.isBluetoothOutputAttributes(audioDeviceAttributes)) {
		mDeviceRouteController.selectRoute(null);
		mBluetoothRouteController.selectRoute(audioDeviceAttributes.getAddress());
		} else {
		Slog.w(TAG, "Unknown audio attributes: " + audioDeviceAttributes);
		}
		}

		private void updateProviderState() {
		MediaRoute2ProviderInfo.Builder builder = new MediaRoute2ProviderInfo.Builder();