am e813d7e8: Merge "AudioService: implement TV system volume" into lmp-dev (3c6794e7) · Commits · e / os / android_frameworks_base

media/java/android/media/AudioService.java

+286 −97

Original line number	Diff line number	Diff line
		@@ -44,6 +44,7 @@ import android.content.res.Resources;
		import android.content.res.XmlResourceParser;
		import android.database.ContentObserver;
		import android.hardware.hdmi.HdmiControlManager;
		import android.hardware.hdmi.HdmiPlaybackClient;
		import android.hardware.hdmi.HdmiTvClient;
		import android.hardware.usb.UsbManager;
		import android.media.MediaPlayer.OnCompletionListener;
		@@ -144,7 +145,23 @@ public class AudioService extends IAudioService.Stub {
		private final Context mContext;
		private final ContentResolver mContentResolver;
		private final AppOpsManager mAppOps;
		private final boolean mVoiceCapable;

		// the platform has no specific capabilities
		private static final int PLATFORM_DEFAULT = 0;
		// the platform is voice call capable (a phone)
		private static final int PLATFORM_VOICE = 1;
		// the platform is a television or a set-top box
		private static final int PLATFORM_TELEVISION = 2;
		// the platform type affects volume and silent mode behavior
		private final int mPlatformType;

		private boolean isPlatformVoice() {
		return mPlatformType == PLATFORM_VOICE;
		}

		private boolean isPlatformTelevision() {
		return mPlatformType == PLATFORM_TELEVISION;
		}

		/** The controller for the volume UI. */
		private final VolumeController mVolumeController = new VolumeController();
		@@ -243,9 +260,10 @@ public class AudioService extends IAudioService.Stub {
		* NOTE: do not create loops in aliases!
		* Some streams alias to different streams according to device category (phone or tablet) or
		* use case (in call vs off call...). See updateStreamVolumeAlias() for more details.
		* mStreamVolumeAlias contains the default aliases for a voice capable device (phone) and
		* STREAM_VOLUME_ALIAS_NON_VOICE for a non voice capable device (tablet).*/
		private final int[] STREAM_VOLUME_ALIAS = new int[] {
		* mStreamVolumeAlias contains STREAM_VOLUME_ALIAS_VOICE aliases for a voice capable device
		* (phone), STREAM_VOLUME_ALIAS_TELEVISION for a television or set-top box and
		* STREAM_VOLUME_ALIAS_DEFAULT for other devices (e.g. tablets).*/
		private final int[] STREAM_VOLUME_ALIAS_VOICE = new int[] {
		AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL
		AudioSystem.STREAM_RING, // STREAM_SYSTEM
		AudioSystem.STREAM_RING, // STREAM_RING
		@@ -257,7 +275,19 @@ public class AudioService extends IAudioService.Stub {
		AudioSystem.STREAM_RING, // STREAM_DTMF
		AudioSystem.STREAM_MUSIC // STREAM_TTS
		};
		private final int[] STREAM_VOLUME_ALIAS_NON_VOICE = new int[] {
		private final int[] STREAM_VOLUME_ALIAS_TELEVISION = new int[] {
		AudioSystem.STREAM_MUSIC, // STREAM_VOICE_CALL
		AudioSystem.STREAM_MUSIC, // STREAM_SYSTEM
		AudioSystem.STREAM_MUSIC, // STREAM_RING
		AudioSystem.STREAM_MUSIC, // STREAM_MUSIC
		AudioSystem.STREAM_MUSIC, // STREAM_ALARM
		AudioSystem.STREAM_MUSIC, // STREAM_NOTIFICATION
		AudioSystem.STREAM_MUSIC, // STREAM_BLUETOOTH_SCO
		AudioSystem.STREAM_MUSIC, // STREAM_SYSTEM_ENFORCED
		AudioSystem.STREAM_MUSIC, // STREAM_DTMF
		AudioSystem.STREAM_MUSIC // STREAM_TTS
		};
		private final int[] STREAM_VOLUME_ALIAS_DEFAULT = new int[] {
		AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL
		AudioSystem.STREAM_MUSIC, // STREAM_SYSTEM
		AudioSystem.STREAM_RING, // STREAM_RING
		@@ -455,9 +485,12 @@ public class AudioService extends IAudioService.Stub {
		public final static int STREAM_REMOTE_MUSIC = -200;

		// Devices for which the volume is fixed and VolumePanel slider should be disabled
		final int mFixedVolumeDevices = AudioSystem.DEVICE_OUT_HDMI \|
		int mFixedVolumeDevices = AudioSystem.DEVICE_OUT_HDMI \|
		AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET \|
		AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET;
		AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET \|
		AudioSystem.DEVICE_OUT_HDMI_ARC \|
		AudioSystem.DEVICE_OUT_SPDIF \|
		AudioSystem.DEVICE_OUT_AUX_LINE;

		// TODO merge orientation and rotation
		private final boolean mMonitorOrientation;
		@@ -491,8 +524,16 @@ public class AudioService extends IAudioService.Stub {
		mContext = context;
		mContentResolver = context.getContentResolver();
		mAppOps = (AppOpsManager)context.getSystemService(Context.APP_OPS_SERVICE);
		mVoiceCapable = mContext.getResources().getBoolean(
		com.android.internal.R.bool.config_voice_capable);

		if (mContext.getResources().getBoolean(
		com.android.internal.R.bool.config_voice_capable)) {
		mPlatformType = PLATFORM_VOICE;
		} else if (context.getPackageManager().hasSystemFeature(
		PackageManager.FEATURE_TELEVISION)) {
		mPlatformType = PLATFORM_TELEVISION;
		} else {
		mPlatformType = PLATFORM_DEFAULT;
		}

		PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
		mAudioEventWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "handleAudioEvent");
		@@ -622,10 +663,15 @@ public class AudioService extends IAudioService.Stub {
		BluetoothProfile.A2DP);
		}

		HdmiControlManager hdmiManager =
		mHdmiManager =
		(HdmiControlManager) mContext.getSystemService(Context.HDMI_CONTROL_SERVICE);
		// Null if device is not Tv.
		mHdmiTvClient = hdmiManager.getTvClient();
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		mHdmiTvClient = mHdmiManager.getTvClient();
		mHdmiPlaybackClient = mHdmiManager.getPlaybackClient();
		mHdmiCecSink = false;
		}
		}

		sendMsg(mAudioHandler,
		MSG_CONFIGURE_SAFE_MEDIA_VOLUME_FORCED,
		@@ -670,6 +716,14 @@ public class AudioService extends IAudioService.Stub {
		}
		}

		private void checkAllFixedVolumeDevices()
		{
		int numStreamTypes = AudioSystem.getNumStreamTypes();
		for (int streamType = 0; streamType < numStreamTypes; streamType++) {
		mStreamStates[streamType].checkFixedVolumeDevices();
		}
		}

		private void createStreamStates() {
		int numStreamTypes = AudioSystem.getNumStreamTypes();
		VolumeStreamState[] streams = mStreamStates = new VolumeStreamState[numStreamTypes];
		@@ -678,6 +732,7 @@ public class AudioService extends IAudioService.Stub {
		streams[i] = new VolumeStreamState(System.VOLUME_SETTINGS[mStreamVolumeAlias[i]], i);
		}

		checkAllFixedVolumeDevices();
		checkAllAliasStreamVolumes();
		}

		@@ -702,19 +757,32 @@ public class AudioService extends IAudioService.Stub {

		private void updateStreamVolumeAlias(boolean updateVolumes) {
		int dtmfStreamAlias;
		if (mVoiceCapable) {
		mStreamVolumeAlias = STREAM_VOLUME_ALIAS;

		switch (mPlatformType) {
		case PLATFORM_VOICE:
		mStreamVolumeAlias = STREAM_VOLUME_ALIAS_VOICE;
		dtmfStreamAlias = AudioSystem.STREAM_RING;
		} else {
		mStreamVolumeAlias = STREAM_VOLUME_ALIAS_NON_VOICE;
		break;
		case PLATFORM_TELEVISION:
		mStreamVolumeAlias = STREAM_VOLUME_ALIAS_TELEVISION;
		dtmfStreamAlias = AudioSystem.STREAM_MUSIC;
		break;
		default:
		mStreamVolumeAlias = STREAM_VOLUME_ALIAS_DEFAULT;
		dtmfStreamAlias = AudioSystem.STREAM_MUSIC;
		}

		if (isPlatformTelevision()) {
		mRingerModeAffectedStreams = 0;
		} else {
		if (isInCommunication()) {
		dtmfStreamAlias = AudioSystem.STREAM_VOICE_CALL;
		mRingerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_DTMF);
		} else {
		mRingerModeAffectedStreams \|= (1 << AudioSystem.STREAM_DTMF);
		}
		}

		mStreamVolumeAlias[AudioSystem.STREAM_DTMF] = dtmfStreamAlias;
		if (updateVolumes) {
		mStreamStates[AudioSystem.STREAM_DTMF].setAllIndexes(mStreamStates[dtmfStreamAlias]);
		@@ -768,7 +836,7 @@ public class AudioService extends IAudioService.Stub {
		if (ringerMode != ringerModeFromSettings) {
		Settings.Global.putInt(cr, Settings.Global.MODE_RINGER, ringerMode);
		}
		if (mUseFixedVolume) {
		if (mUseFixedVolume \|\| isPlatformTelevision()) {
		ringerMode = AudioManager.RINGER_MODE_NORMAL;
		}
		synchronized(mSettingsLock) {
		@@ -998,6 +1066,8 @@ public class AudioService extends IAudioService.Stub {

		// Check if volume update should be send to Hdmi system audio.
		int newIndex = mStreamStates[streamType].getIndex(device);
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		if (mHdmiTvClient != null &&
		streamTypeAlias == AudioSystem.STREAM_MUSIC &&
		(flags & AudioManager.FLAG_HDMI_SYSTEM_AUDIO_VOLUME) == 0 &&
		@@ -1010,6 +1080,19 @@ public class AudioService extends IAudioService.Stub {
		}
		}
		}
		// mHdmiCecSink true => mHdmiPlaybackClient != null
		if (mHdmiCecSink &&
		streamTypeAlias == AudioSystem.STREAM_MUSIC &&
		oldIndex != newIndex) {
		synchronized (mHdmiPlaybackClient) {
		int keyCode = (direction == -1) ? KeyEvent.KEYCODE_VOLUME_DOWN :
		KeyEvent.KEYCODE_VOLUME_UP;
		mHdmiPlaybackClient.sendKeyEvent(keyCode, true);
		mHdmiPlaybackClient.sendKeyEvent(keyCode, false);
		}
		}
		}
		}
		}
		int index = mStreamStates[streamType].getIndex(device);
		sendVolumeUpdate(streamType, oldIndex, index, flags);
		@@ -1110,6 +1193,8 @@ public class AudioService extends IAudioService.Stub {
		}
		}

		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		if (mHdmiTvClient != null &&
		streamTypeAlias == AudioSystem.STREAM_MUSIC &&
		(flags & AudioManager.FLAG_HDMI_SYSTEM_AUDIO_VOLUME) == 0 &&
		@@ -1122,6 +1207,8 @@ public class AudioService extends IAudioService.Stub {
		}
		}
		}
		}
		}

		flags &= ~AudioManager.FLAG_FIXED_VOLUME;
		if ((streamTypeAlias == AudioSystem.STREAM_MUSIC) &&
		@@ -1257,7 +1344,7 @@ public class AudioService extends IAudioService.Stub {

		// UI update and Broadcast Intent
		private void sendVolumeUpdate(int streamType, int oldIndex, int index, int flags) {
		if (!mVoiceCapable && (streamType == AudioSystem.STREAM_RING)) {
		if (!isPlatformVoice() && (streamType == AudioSystem.STREAM_RING)) {
		streamType = AudioSystem.STREAM_NOTIFICATION;
		}

		@@ -1346,6 +1433,8 @@ public class AudioService extends IAudioService.Stub {
		}

		if (isStreamAffectedByMute(streamType)) {
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		if (streamType == AudioSystem.STREAM_MUSIC && mHdmiTvClient != null) {
		synchronized (mHdmiTvClient) {
		if (mHdmiSystemAudioSupported) {
		@@ -1353,6 +1442,8 @@ public class AudioService extends IAudioService.Stub {
		}
		}
		}
		}
		}
		mStreamStates[streamType].mute(cb, state);
		}
		}
		@@ -1472,11 +1563,15 @@ public class AudioService extends IAudioService.Stub {

		/** @see AudioManager#getMasterStreamType() */
		public int getMasterStreamType() {
		if (mVoiceCapable) {
		switch (mPlatformType) {
		case PLATFORM_VOICE:
		return AudioSystem.STREAM_RING;
		} else {
		return AudioSystem.STREAM_NOTIFICATION;
		case PLATFORM_TELEVISION:
		return AudioSystem.STREAM_MUSIC;
		default:
		break;
		}
		return AudioSystem.STREAM_NOTIFICATION;
		}

		/** @see AudioManager#setMicrophoneMute(boolean) */
		@@ -1504,7 +1599,7 @@ public class AudioService extends IAudioService.Stub {

		/** @see AudioManager#setRingerMode(int) */
		public void setRingerMode(int ringerMode) {
		if (mUseFixedVolume) {
		if (mUseFixedVolume \|\| isPlatformTelevision()) {
		return;
		}

		@@ -1534,7 +1629,7 @@ public class AudioService extends IAudioService.Stub {
		ringerMode == AudioManager.RINGER_MODE_NORMAL) {
		// ring and notifications volume should never be 0 when not silenced
		// on voice capable devices
		if (mVoiceCapable &&
		if (isPlatformVoice() &&
		mStreamVolumeAlias[streamType] == AudioSystem.STREAM_RING) {
		synchronized (mStreamStates[streamType]) {
		Set set = mStreamStates[streamType].mIndex.entrySet();
		@@ -2041,6 +2136,7 @@ public class AudioService extends IAudioService.Stub {
		// muted by ringer mode have the correct volume
		setRingerModeInt(getRingerMode(), false);

		checkAllFixedVolumeDevices();
		checkAllAliasStreamVolumes();

		synchronized (mSafeMediaVolumeState) {
		@@ -2760,11 +2856,18 @@ public class AudioService extends IAudioService.Stub {
		(1 << AudioSystem.STREAM_NOTIFICATION)\|
		(1 << AudioSystem.STREAM_SYSTEM);

		if (mVoiceCapable) {
		switch (mPlatformType) {
		case PLATFORM_VOICE:
		ringerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC);
		} else {
		break;
		case PLATFORM_TELEVISION:
		ringerModeAffectedStreams = 0;
		break;
		default:
		ringerModeAffectedStreams \|= (1 << AudioSystem.STREAM_MUSIC);
		break;
		}

		synchronized (mCameraSoundForced) {
		if (mCameraSoundForced) {
		ringerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_SYSTEM_ENFORCED);
		@@ -2833,7 +2936,8 @@ public class AudioService extends IAudioService.Stub {
		}

		private int getActiveStreamType(int suggestedStreamType) {
		if (mVoiceCapable) {
		switch (mPlatformType) {
		case PLATFORM_VOICE:
		if (isInCommunication()) {
		if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION)
		== AudioSystem.FORCE_BT_SCO) {
		@@ -2863,12 +2967,26 @@ public class AudioService extends IAudioService.Stub {
		if (DEBUG_VOL)
		Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC stream active");
		return AudioSystem.STREAM_MUSIC;
		} else {
		if (DEBUG_VOL) Log.v(TAG, "getActiveStreamType: Returning suggested type "
		+ suggestedStreamType);
		return suggestedStreamType;
		}
		break;
		case PLATFORM_TELEVISION:
		if (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) {
		if (isAfMusicActiveRecently(DEFAULT_STREAM_TYPE_OVERRIDE_DELAY_MS)) {
		if (DEBUG_VOL) Log.v(TAG, "getActiveStreamType: forcing STREAM_MUSIC");
		return AudioSystem.STREAM_MUSIC;
		} else if (mMediaFocusControl.checkUpdateRemoteStateIfActive(
		AudioSystem.STREAM_MUSIC)) {
		if (DEBUG_VOL)
		Log.v(TAG, "getActiveStreamType: Forcing STREAM_REMOTE_MUSIC");
		return STREAM_REMOTE_MUSIC;
		} else {
		if (DEBUG_VOL) Log.v(TAG,
		"getActiveStreamType: using STREAM_MUSIC as default");
		return AudioSystem.STREAM_MUSIC;
		}
		}
		break;
		default:
		if (isInCommunication()) {
		if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION)
		== AudioSystem.FORCE_BT_SCO) {
		@@ -2899,13 +3017,13 @@ public class AudioService extends IAudioService.Stub {
		"getActiveStreamType: using STREAM_NOTIFICATION as default");
		return AudioSystem.STREAM_NOTIFICATION;
		}
		} else {
		}
		break;
		}
		if (DEBUG_VOL) Log.v(TAG, "getActiveStreamType: Returning suggested type "
		+ suggestedStreamType);
		return suggestedStreamType;
		}
		}
		}

		private void broadcastRingerMode(int ringerMode) {
		// Send sticky broadcast
		@@ -3098,16 +3216,10 @@ public class AudioService extends IAudioService.Stub {
		continue;
		}

		// ignore settings for fixed volume devices: volume should always be at max or 0
		if ((mStreamVolumeAlias[mStreamType] == AudioSystem.STREAM_MUSIC) &&
		((device & mFixedVolumeDevices) != 0)) {
		mIndex.put(device, (index != 0) ? mIndexMax : 0);
		} else {
		mIndex.put(device, getValidIndex(10 * index));
		}
		}
		}
		}

		public void applyDeviceVolume(int device) {
		int index;
		@@ -3263,6 +3375,25 @@ public class AudioService extends IAudioService.Stub {
		return mStreamType;
		}

		public void checkFixedVolumeDevices() {
		synchronized (VolumeStreamState.class) {
		// ignore settings for fixed volume devices: volume should always be at max or 0
		if (mStreamVolumeAlias[mStreamType] == AudioSystem.STREAM_MUSIC) {
		Set set = mIndex.entrySet();
		Iterator i = set.iterator();
		while (i.hasNext()) {
		Map.Entry entry = (Map.Entry)i.next();
		int device = ((Integer)entry.getKey()).intValue();
		int index = ((Integer)entry.getValue()).intValue();
		if (((device & mFixedVolumeDevices) != 0) && index != 0) {
		entry.setValue(mIndexMax);
		}
		applyDeviceVolume(device);
		}
		}
		}
		}

		private int getValidIndex(int index) {
		if (index < 0) {
		return 0;
		@@ -3469,6 +3600,9 @@ public class AudioService extends IAudioService.Stub {
		if (mUseFixedVolume) {
		return;
		}
		if (isPlatformTelevision() && (streamState.mStreamType != AudioSystem.STREAM_MUSIC)) {
		return;
		}
		System.putIntForUser(mContentResolver,
		streamState.getSettingNameForDevice(device),
		(streamState.getIndex(device) + 5)/ 10,
		@@ -3825,11 +3959,13 @@ public class AudioService extends IAudioService.Stub {
		mDockAudioMediaEnabled ?
		AudioSystem.FORCE_ANALOG_DOCK : AudioSystem.FORCE_NONE);
		}

		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		if (mHdmiTvClient != null) {
		setHdmiSystemAudioSupported(mHdmiSystemAudioSupported);
		}

		}
		}
		// indicate the end of reconfiguration phase to audio HAL
		AudioSystem.setParameters("restarting=false");
		break;
		@@ -4275,6 +4411,27 @@ public class AudioService extends IAudioService.Stub {
		null,
		MUSIC_ACTIVE_POLL_PERIOD_MS);
		}
		// Television devices without CEC service apply software volume on HDMI output
		if (isPlatformTelevision() && ((device & AudioSystem.DEVICE_OUT_HDMI) != 0)) {
		mFixedVolumeDevices \|= AudioSystem.DEVICE_OUT_HDMI;
		checkAllFixedVolumeDevices();
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		if (mHdmiPlaybackClient != null) {
		mHdmiCecSink = false;
		mHdmiPlaybackClient.queryDisplayStatus(mHdmiDisplayStatusCallback);
		}
		}
		}
		}
		} else {
		if (isPlatformTelevision() && ((device & AudioSystem.DEVICE_OUT_HDMI) != 0)) {
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		mHdmiCecSink = false;
		}
		}
		}
		}
		if (!isUsb && (device != AudioSystem.DEVICE_IN_WIRED_HEADSET)) {
		sendDeviceConnectionIntent(device, state, name);
		@@ -4577,6 +4734,7 @@ public class AudioService extends IAudioService.Stub {
		if (cameraSoundForced != mCameraSoundForced) {
		mCameraSoundForced = cameraSoundForced;

		if (!isPlatformTelevision()) {
		VolumeStreamState s = mStreamStates[AudioSystem.STREAM_SYSTEM_ENFORCED];
		if (cameraSoundForced) {
		s.setAllIndexesToMax();
		@@ -4589,6 +4747,7 @@ public class AudioService extends IAudioService.Stub {
		}
		// take new state into account for streams muted by ringer mode
		setRingerModeInt(getRingerMode(), false);
		}

		sendMsg(mAudioHandler,
		MSG_SET_FORCE_USE,
		@@ -4804,27 +4963,57 @@ public class AudioService extends IAudioService.Stub {
		// to HdmiControlService so that audio recevier can handle volume change.
		//==========================================================================================

		private class MyDisplayStatusCallback implements HdmiPlaybackClient.DisplayStatusCallback {
		public void onComplete(int status) {
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		mHdmiCecSink = (status != HdmiControlManager.POWER_STATUS_UNKNOWN);
		// Television devices without CEC service apply software volume on HDMI output
		if (isPlatformTelevision() && !mHdmiCecSink) {
		mFixedVolumeDevices &= ~AudioSystem.DEVICE_OUT_HDMI;
		}
		checkAllFixedVolumeDevices();
		}
		}
		}
		};

		// If HDMI-CEC system audio is supported
		private boolean mHdmiSystemAudioSupported = false;
		// Set only when device is tv.
		private HdmiTvClient mHdmiTvClient;
		// true if the device has system feature PackageManager.FEATURE_TELEVISION.
		// cached HdmiControlManager interface
		private HdmiControlManager mHdmiManager;
		// Set only when device is a set-top box.
		private HdmiPlaybackClient mHdmiPlaybackClient;
		// true if we are a set-top box, an HDMI sink is connected and it supports CEC.
		private boolean mHdmiCecSink;

		private MyDisplayStatusCallback mHdmiDisplayStatusCallback = new MyDisplayStatusCallback();

		@Override
		public int setHdmiSystemAudioSupported(boolean on) {
		int device = AudioSystem.DEVICE_NONE;
		if (mHdmiManager != null) {
		synchronized (mHdmiManager) {
		if (mHdmiTvClient == null) {
		Log.w(TAG, "Only Hdmi-Cec enabled TV device supports system audio mode.");
		return AudioSystem.DEVICE_NONE;
		return device;
		}

		synchronized (mHdmiTvClient) {
		if (mHdmiSystemAudioSupported == on) {
		return AudioSystem.getDevicesForStream(AudioSystem.STREAM_MUSIC);
		}
		if (mHdmiSystemAudioSupported != on) {
		mHdmiSystemAudioSupported = on;
		AudioSystem.setForceUse(AudioSystem.FOR_HDMI_SYSTEM_AUDIO,
		on ? AudioSystem.FORCE_HDMI_SYSTEM_AUDIO_ENFORCED : AudioSystem.FORCE_NONE);
		on ? AudioSystem.FORCE_HDMI_SYSTEM_AUDIO_ENFORCED :
		AudioSystem.FORCE_NONE);
		}
		device = AudioSystem.getDevicesForStream(AudioSystem.STREAM_MUSIC);
		}
		return AudioSystem.getDevicesForStream(AudioSystem.STREAM_MUSIC);
		}
		}
		return device;
		}

		//==========================================================================================