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Commit 2b2f76b7 authored by Rahul Sabnis's avatar Rahul Sabnis
Browse files

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
parent 659ccfc9

core/api/current.txt

+2 −0
Original line number Diff line number Diff line
@@ -8909,6 +8909,8 @@ package android.bluetooth { 
    method public int getConnectionState(android.bluetooth.BluetoothDevice);

    method public java.util.List<android.bluetooth.BluetoothDevice> getDevicesMatchingConnectionStates(int[]);

    method public boolean isAudioConnected(android.bluetooth.BluetoothDevice);

    method @RequiresPermission(android.Manifest.permission.BLUETOOTH) public boolean isNoiseReductionSupported(@NonNull android.bluetooth.BluetoothDevice);

    method @RequiresPermission(android.Manifest.permission.BLUETOOTH) public boolean isVoiceRecognitionSupported(@NonNull android.bluetooth.BluetoothDevice);

    method public boolean sendVendorSpecificResultCode(android.bluetooth.BluetoothDevice, String, String);

    method public boolean startVoiceRecognition(android.bluetooth.BluetoothDevice);

    method public boolean stopVoiceRecognition(android.bluetooth.BluetoothDevice);

core/java/android/bluetooth/BluetoothHeadset.java

+42 −0
Original line number Diff line number Diff line
@@ -681,6 +681,48 @@ public final class BluetoothHeadset implements BluetoothProfile { 
        return BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;

    }



    /**

     * 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