SpatialAudio: Provide API to allow/disallow low latency audio

Bug: 214615268
Test: Manually test signal passing from framework to bluetooth/system
Tag: #feature

Change-Id: If7e1706c54bc6652698b0f5d5570de13ae54b519

1 files changed, 30 insertions, 0 deletions

diff --git a/framework/java/android/bluetooth/BluetoothDevice.java b/framework/java/android/bluetooth/BluetoothDevice.java
index 1edf5cc96b..70971a0c22 100644
--- a/framework/java/android/bluetooth/BluetoothDevice.java
+++ b/framework/java/android/bluetooth/BluetoothDevice.java
@@ -2828,4 +2828,34 @@ public final class BluetoothDevice implements Parcelable, Attributable {
     public static @MetadataKey int getMaxMetadataKey() {
         return METADATA_UNTETHERED_CASE_LOW_BATTERY_THRESHOLD;
     }
+
+    /**
+     * Enable or disable audio low latency for this {@link BluetoothDevice}.
+     *
+     * @param allowed true if low latency is allowed, false if low latency is disallowed.
+     * @return true if the value is successfully set,
+     * false if there is a error when setting the value.
+     * @hide
+     */
+    @SystemApi
+    @RequiresBluetoothConnectPermission
+    @RequiresPermission(allOf = {
+            android.Manifest.permission.BLUETOOTH_CONNECT,
+            android.Manifest.permission.BLUETOOTH_PRIVILEGED,
+    })
+    public boolean setLowLatencyAudioAllowed(boolean allowed) {
+        final IBluetooth service = sService;
+        Log.i(TAG, "Allowing bluetooth audio low latency: " + allowed);
+        if (service == null) {
+            Log.e(TAG, "Bluetooth is not enabled. Cannot allow low latency");
+            return false;
+        }
+        try {
+            service.allowLowLatencyAudio(allowed, this);
+        } catch (RemoteException e) {
+            Log.e(TAG, "allowLowLatencyAudio fail ", e);
+            e.rethrowFromSystemServer();
+        }
+        return true;
+    }
 }