Introduce public APIs to check whether a remote bluetooth headset

supports voice recognition as well as echo cancellation and/or noise
reduction via the AT+BRSF bitmask

Tag: #feature
Bug: 172960943
Test: Manual
Change-Id: I40579d9b6d493d2b32fb260983eeb7c79cc0d525

1 files changed, 42 insertions, 0 deletions

diff --git a/core/java/android/bluetooth/BluetoothHeadset.java b/core/java/android/bluetooth/BluetoothHeadset.java
index adb7e2f773a9..f59ae338ee2f 100644
--- a/core/java/android/bluetooth/BluetoothHeadset.java
+++ b/core/java/android/bluetooth/BluetoothHeadset.java
@@ -682,6 +682,48 @@ public final class BluetoothHeadset implements BluetoothProfile {
     }
 
     /**
+     * Checks whether the headset supports some form of noise reduction
+     *
+     * @param device Bluetooth device
+     * @return true if echo cancellation and/or noise reduction is supported, false otherwise
+     */
+    @RequiresPermission(Manifest.permission.BLUETOOTH)
+    public boolean isNoiseReductionSupported(@NonNull BluetoothDevice device) {
+        if (DBG) log("isNoiseReductionSupported()");
+        final IBluetoothHeadset service = mService;
+        if (service != null && isEnabled() && isValidDevice(device)) {
+            try {
+                return service.isNoiseReductionSupported(device);
+            } catch (RemoteException e) {
+                Log.e(TAG, Log.getStackTraceString(new Throwable()));
+            }
+        }
+        if (service == null) Log.w(TAG, "Proxy not attached to service");
+        return false;
+    }
+
+    /**
+     * Checks whether the headset supports voice recognition
+     *
+     * @param device Bluetooth device
+     * @return true if voice recognition is supported, false otherwise
+     */
+    @RequiresPermission(Manifest.permission.BLUETOOTH)
+    public boolean isVoiceRecognitionSupported(@NonNull BluetoothDevice device) {
+        if (DBG) log("isVoiceRecognitionSupported()");
+        final IBluetoothHeadset service = mService;
+        if (service != null && isEnabled() && isValidDevice(device)) {
+            try {
+                return service.isVoiceRecognitionSupported(device);
+            } catch (RemoteException e) {
+                Log.e(TAG, Log.getStackTraceString(new Throwable()));
+            }
+        }
+        if (service == null) Log.w(TAG, "Proxy not attached to service");
+        return false;
+    }
+
+    /**
      * Start Bluetooth voice recognition. This methods sends the voice
      * recognition AT command to the headset and establishes the
      * audio connection.