Subscribe to AudioManager to listen to currently selected device
Bug: b/255495104
Test: manually tested
Change-Id: I360b1ef592e30f4ad39136ec0def2f3fa74df912
diff --git a/services/core/java/com/android/server/media/AudioAttributesUtils.java b/services/core/java/com/android/server/media/AudioAttributesUtils.java
new file mode 100644
index 0000000..b9c9bae
--- /dev/null
+++ b/services/core/java/com/android/server/media/AudioAttributesUtils.java
@@ -0,0 +1,112 @@
+/*
+ * 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;
+ }
+ }
+
+}
diff --git a/services/core/java/com/android/server/media/SystemMediaRoute2Provider.java b/services/core/java/com/android/server/media/SystemMediaRoute2Provider.java
index 6619e6c..5d5c621 100644
--- a/services/core/java/com/android/server/media/SystemMediaRoute2Provider.java
+++ b/services/core/java/com/android/server/media/SystemMediaRoute2Provider.java
@@ -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 com.android.internal.annotations.GuardedBy;
+import java.util.List;
import java.util.Objects;
/**
@@ -71,6 +75,26 @@
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 @@
});
});
+ 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 @@
}
}
+ 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();