audio: Add API to handle active device change (a8439e20) · Commits · e / os / android_frameworks_base

media/java/android/media/AudioManager.java

+30 −0

Original line number	Diff line number	Diff line
		@@ -4047,6 +4047,36 @@ public class AudioManager {
		}
		}

		/**
		* Indicate A2DP source or sink active device change and eventually suppress
		* the {@link AudioManager.ACTION_AUDIO_BECOMING_NOISY} intent.
		* @param device Bluetooth device connected/disconnected
		* @param state new connection state (BluetoothProfile.STATE_xxx)
		* @param profile profile for the A2DP device
		* (either {@link android.bluetooth.BluetoothProfile.A2DP} or
		* {@link android.bluetooth.BluetoothProfile.A2DP_SINK})
		* @param a2dpVolume New volume for the connecting device. Does nothing if
		* disconnecting. Pass value -1 in case you want this field to be ignored
		* @param suppressNoisyIntent if true the
		* {@link AudioManager.ACTION_AUDIO_BECOMING_NOISY} intent will not be sent.
		* @return a delay in ms that the caller should wait before broadcasting
		* BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED intent.
		* {@hide}
		*/
		public int handleBluetoothA2dpActiveDeviceChange(
		BluetoothDevice device, int state, int profile,
		boolean suppressNoisyIntent, int a2dpVolume) {
		final IAudioService service = getService();
		int delay = 0;
		try {
		delay = service.handleBluetoothA2dpActiveDeviceChange(device,
		state, profile, suppressNoisyIntent, a2dpVolume);
		} catch (RemoteException e) {
		throw e.rethrowFromSystemServer();
		}
		return delay;
		}

		/** {@hide} */
		public IRingtonePlayer getRingtonePlayer() {
		try {

media/java/android/media/IAudioService.aidl

+3 −0

Original line number	Diff line number	Diff line
		@@ -155,6 +155,9 @@ interface IAudioService {

		void handleBluetoothA2dpDeviceConfigChange(in BluetoothDevice device);

		int handleBluetoothA2dpActiveDeviceChange(in BluetoothDevice device,
		int state, int profile, boolean suppressNoisyIntent, int a2dpVolume);

		AudioRoutesInfo startWatchingRoutes(in IAudioRoutesObserver observer);

		boolean isCameraSoundForced();

services/core/java/com/android/server/audio/AudioService.java

+122 −3

Original line number	Diff line number	Diff line
		@@ -270,6 +270,7 @@ public class AudioService extends IAudioService.Stub
		private static final int MSG_DISABLE_AUDIO_FOR_UID = 104;
		private static final int MSG_SET_HEARING_AID_CONNECTION_STATE = 105;
		private static final int MSG_BTA2DP_DOCK_TIMEOUT = 106;
		private static final int MSG_A2DP_ACTIVE_DEVICE_CHANGE = 107;
		// end of messages handled under wakelock

		private static final int BTA2DP_DOCK_TIMEOUT_MILLIS = 8000;
		@@ -4671,6 +4672,7 @@ public class AudioService extends IAudioService.Stub
		msg == MSG_SET_HEARING_AID_CONNECTION_STATE \|\|
		msg == MSG_SET_WIRED_DEVICE_CONNECTION_STATE \|\|
		msg == MSG_A2DP_DEVICE_CONFIG_CHANGE \|\|
		msg == MSG_A2DP_ACTIVE_DEVICE_CHANGE \|\|
		msg == MSG_BTA2DP_DOCK_TIMEOUT) {
		if (mLastDeviceConnectMsgTime >= time) {
		// add a little delay to make sure messages are ordered as expected
		@@ -4890,6 +4892,61 @@ public class AudioService extends IAudioService.Stub
		}
		}

		/**
		* @see AudioManager#handleBluetoothA2dpActiveDeviceChange(BluetoothDevice, int, int,
		* boolean, int)
		*/
		public int handleBluetoothA2dpActiveDeviceChange(
		BluetoothDevice device, int state, int profile, boolean suppressNoisyIntent,
		int a2dpVolume) {
		if (profile != BluetoothProfile.A2DP && profile != BluetoothProfile.A2DP_SINK) {
		throw new IllegalArgumentException("invalid profile " + profile);
		}

		synchronized (mConnectedDevices) {
		if (state == BluetoothA2dp.STATE_CONNECTED) {
		for (int i = 0; i < mConnectedDevices.size(); i++) {
		DeviceListSpec deviceSpec = mConnectedDevices.valueAt(i);
		if (deviceSpec.mDeviceType != AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP) {
		continue;
		}
		// If A2DP device exists, this is either an active device change or
		// device config change
		String existingDevicekey = mConnectedDevices.keyAt(i);
		String deviceName = device.getName();
		String address = device.getAddress();
		String newDeviceKey = makeDeviceListKey(
		AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, address);
		int a2dpCodec = getA2dpCodec(device);
		// Device not equal to existing device, active device change
		if (!TextUtils.equals(existingDevicekey, newDeviceKey)) {
		mConnectedDevices.remove(existingDevicekey);
		mConnectedDevices.put(newDeviceKey, new DeviceListSpec(
		AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, deviceName,
		address, a2dpCodec));
		queueMsgUnderWakeLock(mAudioHandler,
		MSG_A2DP_ACTIVE_DEVICE_CHANGE,
		0,
		0,
		new BluetoothA2dpDeviceInfo(
		device, a2dpVolume, a2dpCodec),
		0 /* delay */);
		return 0;
		} else {
		// Device config change for existing device
		handleBluetoothA2dpDeviceConfigChange(device);
		return 0;
		}
		}
		}
		}

		// New device connection or a device disconnect
		return setBluetoothA2dpDeviceConnectionStateInt(
		device, state, profile, suppressNoisyIntent,
		AudioSystem.DEVICE_NONE, a2dpVolume);
		}

		private static final int DEVICE_MEDIA_UNMUTED_ON_PLUG =
		AudioSystem.DEVICE_OUT_WIRED_HEADSET \| AudioSystem.DEVICE_OUT_WIRED_HEADPHONE \|
		AudioSystem.DEVICE_OUT_LINE \|
		@@ -5811,6 +5868,11 @@ public class AudioService extends IAudioService.Stub
		mAudioEventWakeLock.release();
		break;

		case MSG_A2DP_ACTIVE_DEVICE_CHANGE:
		onBluetoothA2dpActiveDeviceChange((BluetoothA2dpDeviceInfo) msg.obj);
		mAudioEventWakeLock.release();
		break;

		case MSG_DISABLE_AUDIO_FOR_UID:
		mPlaybackMonitor.disableAudioForUid( msg.arg1 == 1 /* disable */,
		msg.arg2 /* uid */);
		@@ -6277,12 +6339,12 @@ public class AudioService extends IAudioService.Stub
		BluetoothDevice btDevice = btInfo.getBtDevice();
		int a2dpCodec = btInfo.getCodec();

		if (DEBUG_DEVICES) {
		Log.d(TAG, "onBluetoothA2dpDeviceConfigChange btDevice=" + btDevice);
		}
		if (btDevice == null) {
		return;
		}
		if (DEBUG_DEVICES) {
		Log.d(TAG, "onBluetoothA2dpDeviceConfigChange btDevice=" + btDevice);
		}
		String address = btDevice.getAddress();
		if (!BluetoothAdapter.checkBluetoothAddress(address)) {
		address = "";
		@@ -6324,6 +6386,63 @@ public class AudioService extends IAudioService.Stub
		}
		}

		/** message handler for MSG_A2DP_ACTIVE_DEVICE_CHANGE */
		public void onBluetoothA2dpActiveDeviceChange(BluetoothA2dpDeviceInfo btInfo) {
		if (btInfo == null) {
		return;
		}
		BluetoothDevice btDevice = btInfo.getBtDevice();
		int a2dpVolume = btInfo.getVolume();
		int a2dpCodec = btInfo.getCodec();

		if (btDevice == null) {
		return;
		}
		if (DEBUG_DEVICES) {
		Log.d(TAG, "onBluetoothA2dpActiveDeviceChange btDevice=" + btDevice);
		}
		String address = btDevice.getAddress();
		if (!BluetoothAdapter.checkBluetoothAddress(address)) {
		address = "";
		}
		mDeviceLogger.log(new AudioEventLogger.StringEvent(
		"onBluetoothA2dpActiveDeviceChange addr=" + address));

		int device = AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP;
		synchronized (mConnectedDevices) {
		if (mAudioHandler.hasMessages(MSG_SET_A2DP_SINK_CONNECTION_STATE, btDevice)) {
		mDeviceLogger.log(new AudioEventLogger.StringEvent(
		"A2dp config change ignored"));
		return;
		}
		final String key = makeDeviceListKey(device, address);
		final DeviceListSpec deviceSpec = mConnectedDevices.get(key);
		if (deviceSpec == null) {
		return;
		}

		// Device is connected
		if (a2dpVolume != -1) {
		VolumeStreamState streamState = mStreamStates[AudioSystem.STREAM_MUSIC];
		// Convert index to internal representation in VolumeStreamState
		a2dpVolume = a2dpVolume * 10;
		streamState.setIndex(a2dpVolume, device,
		"onBluetoothA2dpActiveDeviceChange");
		setDeviceVolume(streamState, device);
		}

		if (AudioSystem.handleDeviceConfigChange(device, address,
		btDevice.getName(), a2dpCodec) != AudioSystem.AUDIO_STATUS_OK) {
		int musicDevice = getDeviceForStream(AudioSystem.STREAM_MUSIC);
		// force A2DP device disconnection in case of error so that AudioService state is
		// consistent with audio policy manager state
		setBluetoothA2dpDeviceConnectionStateInt(
		btDevice, BluetoothA2dp.STATE_DISCONNECTED, BluetoothProfile.A2DP,
		false /* suppressNoisyIntent /, musicDevice, -1 / a2dpVolume */);
		}
		}
		}

		public void avrcpSupportsAbsoluteVolume(String address, boolean support) {
		// address is not used for now, but may be used when multiple a2dp devices are supported
		synchronized (mA2dpAvrcpLock) {