AudioService.java revision afbb047c3945e9c2b7e9bc6b25098d5fb80bba4e
1/* 2 * Copyright (C) 2006 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.media; 18 19import static android.media.AudioManager.RINGER_MODE_NORMAL; 20import static android.media.AudioManager.RINGER_MODE_SILENT; 21import static android.media.AudioManager.RINGER_MODE_VIBRATE; 22 23import android.app.ActivityManagerNative; 24import android.app.KeyguardManager; 25import android.app.PendingIntent; 26import android.app.PendingIntent.CanceledException; 27import android.bluetooth.BluetoothA2dp; 28import android.bluetooth.BluetoothAdapter; 29import android.bluetooth.BluetoothClass; 30import android.bluetooth.BluetoothDevice; 31import android.bluetooth.BluetoothHeadset; 32import android.bluetooth.BluetoothProfile; 33import android.content.BroadcastReceiver; 34import android.content.ComponentName; 35import android.content.ContentResolver; 36import android.content.Context; 37import android.content.Intent; 38import android.content.IntentFilter; 39import android.content.pm.PackageManager; 40import android.database.ContentObserver; 41import android.media.MediaPlayer.OnCompletionListener; 42import android.media.MediaPlayer.OnErrorListener; 43import android.os.Binder; 44import android.os.Bundle; 45import android.os.Environment; 46import android.os.Handler; 47import android.os.IBinder; 48import android.os.Looper; 49import android.os.Message; 50import android.os.RemoteException; 51import android.os.ServiceManager; 52import android.os.SystemProperties; 53import android.provider.Settings; 54import android.provider.Settings.System; 55import android.telephony.PhoneStateListener; 56import android.telephony.TelephonyManager; 57import android.util.Log; 58import android.view.KeyEvent; 59import android.view.VolumePanel; 60 61import com.android.internal.telephony.ITelephony; 62 63import java.io.FileDescriptor; 64import java.io.IOException; 65import java.io.PrintWriter; 66import java.util.ArrayList; 67import java.util.HashMap; 68import java.util.Iterator; 69import java.util.List; 70import java.util.Map; 71import java.util.NoSuchElementException; 72import java.util.Set; 73import java.util.Stack; 74 75/** 76 * The implementation of the volume manager service. 77 * <p> 78 * This implementation focuses on delivering a responsive UI. Most methods are 79 * asynchronous to external calls. For example, the task of setting a volume 80 * will update our internal state, but in a separate thread will set the system 81 * volume and later persist to the database. Similarly, setting the ringer mode 82 * will update the state and broadcast a change and in a separate thread later 83 * persist the ringer mode. 84 * 85 * @hide 86 */ 87public class AudioService extends IAudioService.Stub { 88 89 private static final String TAG = "AudioService"; 90 91 /** Debug remote control client/display feature */ 92 protected static final boolean DEBUG_RC = false; 93 94 /** How long to delay before persisting a change in volume/ringer mode. */ 95 private static final int PERSIST_DELAY = 3000; 96 97 private Context mContext; 98 private ContentResolver mContentResolver; 99 private boolean mVoiceCapable; 100 101 /** The UI */ 102 private VolumePanel mVolumePanel; 103 104 // sendMsg() flags 105 /** If the msg is already queued, replace it with this one. */ 106 private static final int SENDMSG_REPLACE = 0; 107 /** If the msg is already queued, ignore this one and leave the old. */ 108 private static final int SENDMSG_NOOP = 1; 109 /** If the msg is already queued, queue this one and leave the old. */ 110 private static final int SENDMSG_QUEUE = 2; 111 112 // AudioHandler message.whats 113 private static final int MSG_SET_SYSTEM_VOLUME = 0; 114 private static final int MSG_PERSIST_VOLUME = 1; 115 private static final int MSG_PERSIST_RINGER_MODE = 3; 116 private static final int MSG_PERSIST_VIBRATE_SETTING = 4; 117 private static final int MSG_MEDIA_SERVER_DIED = 5; 118 private static final int MSG_MEDIA_SERVER_STARTED = 6; 119 private static final int MSG_PLAY_SOUND_EFFECT = 7; 120 private static final int MSG_BTA2DP_DOCK_TIMEOUT = 8; 121 private static final int MSG_LOAD_SOUND_EFFECTS = 9; 122 private static final int MSG_SET_FORCE_USE = 10; 123 private static final int MSG_PERSIST_MEDIABUTTONRECEIVER = 11; 124 private static final int MSG_BT_HEADSET_CNCT_FAILED = 12; 125 private static final int MSG_RCDISPLAY_CLEAR = 13; 126 private static final int MSG_RCDISPLAY_UPDATE = 14; 127 128 129 // flags for MSG_PERSIST_VOLUME indicating if current and/or last audible volume should be 130 // persisted 131 private static final int PERSIST_CURRENT = 0x1; 132 private static final int PERSIST_LAST_AUDIBLE = 0x2; 133 134 private static final int BTA2DP_DOCK_TIMEOUT_MILLIS = 8000; 135 // Timeout for connection to bluetooth headset service 136 private static final int BT_HEADSET_CNCT_TIMEOUT_MS = 3000; 137 138 139 /** @see AudioSystemThread */ 140 private AudioSystemThread mAudioSystemThread; 141 /** @see AudioHandler */ 142 private AudioHandler mAudioHandler; 143 /** @see VolumeStreamState */ 144 private VolumeStreamState[] mStreamStates; 145 private SettingsObserver mSettingsObserver; 146 147 private int mMode; 148 private Object mSettingsLock = new Object(); 149 private boolean mMediaServerOk; 150 151 private SoundPool mSoundPool; 152 private Object mSoundEffectsLock = new Object(); 153 private static final int NUM_SOUNDPOOL_CHANNELS = 4; 154 private static final int SOUND_EFFECT_VOLUME = 1000; 155 156 /* Sound effect file names */ 157 private static final String SOUND_EFFECTS_PATH = "/media/audio/ui/"; 158 private static final String[] SOUND_EFFECT_FILES = new String[] { 159 "Effect_Tick.ogg", 160 "KeypressStandard.ogg", 161 "KeypressSpacebar.ogg", 162 "KeypressDelete.ogg", 163 "KeypressReturn.ogg" 164 }; 165 166 /* Sound effect file name mapping sound effect id (AudioManager.FX_xxx) to 167 * file index in SOUND_EFFECT_FILES[] (first column) and indicating if effect 168 * uses soundpool (second column) */ 169 private int[][] SOUND_EFFECT_FILES_MAP = new int[][] { 170 {0, -1}, // FX_KEY_CLICK 171 {0, -1}, // FX_FOCUS_NAVIGATION_UP 172 {0, -1}, // FX_FOCUS_NAVIGATION_DOWN 173 {0, -1}, // FX_FOCUS_NAVIGATION_LEFT 174 {0, -1}, // FX_FOCUS_NAVIGATION_RIGHT 175 {1, -1}, // FX_KEYPRESS_STANDARD 176 {2, -1}, // FX_KEYPRESS_SPACEBAR 177 {3, -1}, // FX_FOCUS_DELETE 178 {4, -1} // FX_FOCUS_RETURN 179 }; 180 181 /** @hide Maximum volume index values for audio streams */ 182 private int[] MAX_STREAM_VOLUME = new int[] { 183 5, // STREAM_VOICE_CALL 184 7, // STREAM_SYSTEM 185 7, // STREAM_RING 186 15, // STREAM_MUSIC 187 7, // STREAM_ALARM 188 7, // STREAM_NOTIFICATION 189 15, // STREAM_BLUETOOTH_SCO 190 7, // STREAM_SYSTEM_ENFORCED 191 15, // STREAM_DTMF 192 15 // STREAM_TTS 193 }; 194 /* STREAM_VOLUME_ALIAS[] indicates for each stream if it uses the volume settings 195 * of another stream: This avoids multiplying the volume settings for hidden 196 * stream types that follow other stream behavior for volume settings 197 * NOTE: do not create loops in aliases! */ 198 private int[] STREAM_VOLUME_ALIAS = new int[] { 199 AudioSystem.STREAM_VOICE_CALL, // STREAM_VOICE_CALL 200 AudioSystem.STREAM_SYSTEM, // STREAM_SYSTEM 201 AudioSystem.STREAM_RING, // STREAM_RING 202 AudioSystem.STREAM_MUSIC, // STREAM_MUSIC 203 AudioSystem.STREAM_ALARM, // STREAM_ALARM 204 AudioSystem.STREAM_RING, // STREAM_NOTIFICATION 205 AudioSystem.STREAM_BLUETOOTH_SCO, // STREAM_BLUETOOTH_SCO 206 AudioSystem.STREAM_SYSTEM, // STREAM_SYSTEM_ENFORCED 207 AudioSystem.STREAM_VOICE_CALL, // STREAM_DTMF 208 AudioSystem.STREAM_MUSIC // STREAM_TTS 209 }; 210 211 private AudioSystem.ErrorCallback mAudioSystemCallback = new AudioSystem.ErrorCallback() { 212 public void onError(int error) { 213 switch (error) { 214 case AudioSystem.AUDIO_STATUS_SERVER_DIED: 215 if (mMediaServerOk) { 216 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SENDMSG_NOOP, 0, 0, 217 null, 1500); 218 mMediaServerOk = false; 219 } 220 break; 221 case AudioSystem.AUDIO_STATUS_OK: 222 if (!mMediaServerOk) { 223 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_STARTED, SENDMSG_NOOP, 0, 0, 224 null, 0); 225 mMediaServerOk = true; 226 } 227 break; 228 default: 229 break; 230 } 231 } 232 }; 233 234 /** 235 * Current ringer mode from one of {@link AudioManager#RINGER_MODE_NORMAL}, 236 * {@link AudioManager#RINGER_MODE_SILENT}, or 237 * {@link AudioManager#RINGER_MODE_VIBRATE}. 238 */ 239 private int mRingerMode; 240 241 /** @see System#MODE_RINGER_STREAMS_AFFECTED */ 242 private int mRingerModeAffectedStreams; 243 244 // Streams currently muted by ringer mode 245 private int mRingerModeMutedStreams; 246 247 /** @see System#MUTE_STREAMS_AFFECTED */ 248 private int mMuteAffectedStreams; 249 250 /** 251 * Has multiple bits per vibrate type to indicate the type's vibrate 252 * setting. See {@link #setVibrateSetting(int, int)}. 253 * <p> 254 * NOTE: This is not the final decision of whether vibrate is on/off for the 255 * type since it depends on the ringer mode. See {@link #shouldVibrate(int)}. 256 */ 257 private int mVibrateSetting; 258 259 // Broadcast receiver for device connections intent broadcasts 260 private final BroadcastReceiver mReceiver = new AudioServiceBroadcastReceiver(); 261 262 // Broadcast receiver for media button broadcasts (separate from mReceiver to 263 // independently change its priority) 264 private final BroadcastReceiver mMediaButtonReceiver = new MediaButtonBroadcastReceiver(); 265 266 // Used to alter media button redirection when the phone is ringing. 267 private boolean mIsRinging = false; 268 269 // Devices currently connected 270 private HashMap <Integer, String> mConnectedDevices = new HashMap <Integer, String>(); 271 272 // Forced device usage for communications 273 private int mForcedUseForComm; 274 275 // List of binder death handlers for setMode() client processes. 276 // The last process to have called setMode() is at the top of the list. 277 private ArrayList <SetModeDeathHandler> mSetModeDeathHandlers = new ArrayList <SetModeDeathHandler>(); 278 279 // List of clients having issued a SCO start request 280 private ArrayList <ScoClient> mScoClients = new ArrayList <ScoClient>(); 281 282 // BluetoothHeadset API to control SCO connection 283 private BluetoothHeadset mBluetoothHeadset; 284 285 // Bluetooth headset device 286 private BluetoothDevice mBluetoothHeadsetDevice; 287 288 // Indicate if SCO audio connection is currently active and if the initiator is 289 // audio service (internal) or bluetooth headset (external) 290 private int mScoAudioState; 291 // SCO audio state is not active 292 private static final int SCO_STATE_INACTIVE = 0; 293 // SCO audio activation request waiting for headset service to connect 294 private static final int SCO_STATE_ACTIVATE_REQ = 1; 295 // SCO audio state is active or starting due to a local request to start a virtual call 296 private static final int SCO_STATE_ACTIVE_INTERNAL = 3; 297 // SCO audio deactivation request waiting for headset service to connect 298 private static final int SCO_STATE_DEACTIVATE_REQ = 5; 299 300 // SCO audio state is active due to an action in BT handsfree (either voice recognition or 301 // in call audio) 302 private static final int SCO_STATE_ACTIVE_EXTERNAL = 2; 303 // Deactivation request for all SCO connections (initiated by audio mode change) 304 // waiting for headset service to connect 305 private static final int SCO_STATE_DEACTIVATE_EXT_REQ = 4; 306 307 // Current connection state indicated by bluetooth headset 308 private int mScoConnectionState; 309 310 // true if boot sequence has been completed 311 private boolean mBootCompleted; 312 // listener for SoundPool sample load completion indication 313 private SoundPoolCallback mSoundPoolCallBack; 314 // thread for SoundPool listener 315 private SoundPoolListenerThread mSoundPoolListenerThread; 316 // message looper for SoundPool listener 317 private Looper mSoundPoolLooper = null; 318 // default volume applied to sound played with playSoundEffect() 319 private static final int SOUND_EFFECT_DEFAULT_VOLUME_DB = -20; 320 // volume applied to sound played with playSoundEffect() read from ro.config.sound_fx_volume 321 private int SOUND_EFFECT_VOLUME_DB; 322 // getActiveStreamType() will return STREAM_NOTIFICATION during this period after a notification 323 // stopped 324 private static final int NOTIFICATION_VOLUME_DELAY_MS = 5000; 325 // previous volume adjustment direction received by checkForRingerModeChange() 326 private int mPrevVolDirection = AudioManager.ADJUST_SAME; 327 // Keyguard manager proxy 328 private KeyguardManager mKeyguardManager; 329 330 /////////////////////////////////////////////////////////////////////////// 331 // Construction 332 /////////////////////////////////////////////////////////////////////////// 333 334 /** @hide */ 335 public AudioService(Context context) { 336 mContext = context; 337 mContentResolver = context.getContentResolver(); 338 mVoiceCapable = mContext.getResources().getBoolean( 339 com.android.internal.R.bool.config_voice_capable); 340 341 // Intialized volume 342 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL] = SystemProperties.getInt( 343 "ro.config.vc_call_vol_steps", 344 MAX_STREAM_VOLUME[AudioSystem.STREAM_VOICE_CALL]); 345 346 SOUND_EFFECT_VOLUME_DB = SystemProperties.getInt( 347 "ro.config.sound_fx_volume", 348 SOUND_EFFECT_DEFAULT_VOLUME_DB); 349 350 mVolumePanel = new VolumePanel(context, this); 351 mForcedUseForComm = AudioSystem.FORCE_NONE; 352 createAudioSystemThread(); 353 readPersistedSettings(); 354 mSettingsObserver = new SettingsObserver(); 355 createStreamStates(); 356 357 mMode = AudioSystem.MODE_NORMAL; 358 mMediaServerOk = true; 359 360 // Call setRingerModeInt() to apply correct mute 361 // state on streams affected by ringer mode. 362 mRingerModeMutedStreams = 0; 363 setRingerModeInt(getRingerMode(), false); 364 365 AudioSystem.setErrorCallback(mAudioSystemCallback); 366 367 // Register for device connection intent broadcasts. 368 IntentFilter intentFilter = 369 new IntentFilter(Intent.ACTION_HEADSET_PLUG); 370 371 intentFilter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED); 372 intentFilter.addAction(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED); 373 intentFilter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED); 374 intentFilter.addAction(Intent.ACTION_DOCK_EVENT); 375 intentFilter.addAction(Intent.ACTION_USB_ANLG_HEADSET_PLUG); 376 intentFilter.addAction(Intent.ACTION_USB_DGTL_HEADSET_PLUG); 377 intentFilter.addAction(Intent.ACTION_HDMI_AUDIO_PLUG); 378 intentFilter.addAction(Intent.ACTION_BOOT_COMPLETED); 379 intentFilter.addAction(Intent.ACTION_SCREEN_ON); 380 intentFilter.addAction(Intent.ACTION_SCREEN_OFF); 381 context.registerReceiver(mReceiver, intentFilter); 382 383 // Register for package removal intent broadcasts for media button receiver persistence 384 IntentFilter pkgFilter = new IntentFilter(); 385 pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED); 386 pkgFilter.addDataScheme("package"); 387 context.registerReceiver(mReceiver, pkgFilter); 388 389 // Register for media button intent broadcasts. 390 intentFilter = new IntentFilter(Intent.ACTION_MEDIA_BUTTON); 391 // Workaround for bug on priority setting 392 //intentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 393 intentFilter.setPriority(Integer.MAX_VALUE); 394 context.registerReceiver(mMediaButtonReceiver, intentFilter); 395 396 // Register for phone state monitoring 397 TelephonyManager tmgr = (TelephonyManager) 398 context.getSystemService(Context.TELEPHONY_SERVICE); 399 tmgr.listen(mPhoneStateListener, PhoneStateListener.LISTEN_CALL_STATE); 400 } 401 402 private void createAudioSystemThread() { 403 mAudioSystemThread = new AudioSystemThread(); 404 mAudioSystemThread.start(); 405 waitForAudioHandlerCreation(); 406 } 407 408 /** Waits for the volume handler to be created by the other thread. */ 409 private void waitForAudioHandlerCreation() { 410 synchronized(this) { 411 while (mAudioHandler == null) { 412 try { 413 // Wait for mAudioHandler to be set by the other thread 414 wait(); 415 } catch (InterruptedException e) { 416 Log.e(TAG, "Interrupted while waiting on volume handler."); 417 } 418 } 419 } 420 } 421 422 private void createStreamStates() { 423 int numStreamTypes = AudioSystem.getNumStreamTypes(); 424 VolumeStreamState[] streams = mStreamStates = new VolumeStreamState[numStreamTypes]; 425 426 for (int i = 0; i < numStreamTypes; i++) { 427 streams[i] = new VolumeStreamState(System.VOLUME_SETTINGS[STREAM_VOLUME_ALIAS[i]], i); 428 } 429 430 // Correct stream index values for streams with aliases 431 for (int i = 0; i < numStreamTypes; i++) { 432 if (STREAM_VOLUME_ALIAS[i] != i) { 433 int index = rescaleIndex(streams[i].mIndex, STREAM_VOLUME_ALIAS[i], i); 434 streams[i].mIndex = streams[i].getValidIndex(index); 435 setStreamVolumeIndex(i, index); 436 index = rescaleIndex(streams[i].mLastAudibleIndex, STREAM_VOLUME_ALIAS[i], i); 437 streams[i].mLastAudibleIndex = streams[i].getValidIndex(index); 438 } 439 } 440 } 441 442 private void readPersistedSettings() { 443 final ContentResolver cr = mContentResolver; 444 445 mRingerMode = System.getInt(cr, System.MODE_RINGER, AudioManager.RINGER_MODE_NORMAL); 446 // sanity check in case the settings are restored from a device with incompatible 447 // ringer modes 448 if (!AudioManager.isValidRingerMode(mRingerMode)) { 449 mRingerMode = AudioManager.RINGER_MODE_NORMAL; 450 System.putInt(cr, System.MODE_RINGER, mRingerMode); 451 } 452 453 mVibrateSetting = System.getInt(cr, System.VIBRATE_ON, 0); 454 455 // make sure settings for ringer mode are consistent with device type: non voice capable 456 // devices (tablets) include media stream in silent mode whereas phones don't. 457 mRingerModeAffectedStreams = Settings.System.getInt(cr, 458 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 459 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 460 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 461 if (mVoiceCapable) { 462 mRingerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 463 } else { 464 mRingerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 465 } 466 Settings.System.putInt(cr, 467 Settings.System.MODE_RINGER_STREAMS_AFFECTED, mRingerModeAffectedStreams); 468 469 mMuteAffectedStreams = System.getInt(cr, 470 System.MUTE_STREAMS_AFFECTED, 471 ((1 << AudioSystem.STREAM_MUSIC)|(1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_SYSTEM))); 472 473 // Each stream will read its own persisted settings 474 475 // Broadcast the sticky intent 476 broadcastRingerMode(); 477 478 // Broadcast vibrate settings 479 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_RINGER); 480 broadcastVibrateSetting(AudioManager.VIBRATE_TYPE_NOTIFICATION); 481 482 // Restore the default media button receiver from the system settings 483 restoreMediaButtonReceiver(); 484 } 485 486 private void setStreamVolumeIndex(int stream, int index) { 487 AudioSystem.setStreamVolumeIndex(stream, (index + 5)/10); 488 } 489 490 private int rescaleIndex(int index, int srcStream, int dstStream) { 491 return (index * mStreamStates[dstStream].getMaxIndex() + mStreamStates[srcStream].getMaxIndex() / 2) / mStreamStates[srcStream].getMaxIndex(); 492 } 493 494 /////////////////////////////////////////////////////////////////////////// 495 // IPC methods 496 /////////////////////////////////////////////////////////////////////////// 497 498 /** @see AudioManager#adjustVolume(int, int) */ 499 public void adjustVolume(int direction, int flags) { 500 adjustSuggestedStreamVolume(direction, AudioManager.USE_DEFAULT_STREAM_TYPE, flags); 501 } 502 503 /** @see AudioManager#adjustVolume(int, int, int) */ 504 public void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags) { 505 506 int streamType; 507 if ((flags & AudioManager.FLAG_FORCE_STREAM) != 0) { 508 streamType = suggestedStreamType; 509 } else { 510 streamType = getActiveStreamType(suggestedStreamType); 511 } 512 513 // Play sounds on STREAM_RING only and if lock screen is not on. 514 if ((flags & AudioManager.FLAG_PLAY_SOUND) != 0 && 515 ((STREAM_VOLUME_ALIAS[streamType] != AudioSystem.STREAM_RING) 516 || (mKeyguardManager != null && mKeyguardManager.isKeyguardLocked()))) { 517 flags &= ~AudioManager.FLAG_PLAY_SOUND; 518 } 519 520 adjustStreamVolume(streamType, direction, flags); 521 } 522 523 /** @see AudioManager#adjustStreamVolume(int, int, int) */ 524 public void adjustStreamVolume(int streamType, int direction, int flags) { 525 ensureValidDirection(direction); 526 ensureValidStreamType(streamType); 527 528 // use stream type alias here so that streams with same alias have the same behavior, 529 // including with regard to silent mode control (e.g the use of STREAM_RING below and in 530 // checkForRingerModeChange() in place of STREAM_RING or STREAM_NOTIFICATION) 531 int streamTypeAlias = STREAM_VOLUME_ALIAS[streamType]; 532 VolumeStreamState streamState = mStreamStates[streamTypeAlias]; 533 final int oldIndex = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 534 boolean adjustVolume = true; 535 536 // If either the client forces allowing ringer modes for this adjustment, 537 // or the stream type is one that is affected by ringer modes 538 if (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 539 streamTypeAlias == AudioSystem.STREAM_RING || 540 (!mVoiceCapable && streamTypeAlias == AudioSystem.STREAM_MUSIC)) { 541 // do not vibrate if already in vibrate mode 542 if (mRingerMode == AudioManager.RINGER_MODE_VIBRATE) { 543 flags &= ~AudioManager.FLAG_VIBRATE; 544 } 545 // Check if the ringer mode changes with this volume adjustment. If 546 // it does, it will handle adjusting the volume, so we won't below 547 adjustVolume = checkForRingerModeChange(oldIndex, direction, streamTypeAlias); 548 } 549 550 // If stream is muted, adjust last audible index only 551 int index; 552 if (streamState.muteCount() != 0) { 553 if (adjustVolume) { 554 // adjust volume on all stream types sharing the same alias otherwise a query 555 // on last audible index for an alias would not give the correct value 556 int numStreamTypes = AudioSystem.getNumStreamTypes(); 557 for (int i = numStreamTypes - 1; i >= 0; i--) { 558 if (STREAM_VOLUME_ALIAS[i] == streamTypeAlias) { 559 VolumeStreamState s = mStreamStates[i]; 560 561 s.adjustLastAudibleIndex(direction); 562 // Post a persist volume msg 563 sendMsg(mAudioHandler, 564 MSG_PERSIST_VOLUME, 565 SENDMSG_REPLACE, 566 PERSIST_LAST_AUDIBLE, 567 0, 568 s, 569 PERSIST_DELAY); 570 } 571 } 572 } 573 index = streamState.mLastAudibleIndex; 574 } else { 575 if (adjustVolume && streamState.adjustIndex(direction)) { 576 // Post message to set system volume (it in turn will post a message 577 // to persist). Do not change volume if stream is muted. 578 sendMsg(mAudioHandler, 579 MSG_SET_SYSTEM_VOLUME, 580 SENDMSG_NOOP, 581 0, 582 0, 583 streamState, 584 0); 585 } 586 index = streamState.mIndex; 587 } 588 589 sendVolumeUpdate(streamType, oldIndex, index, flags); 590 } 591 592 /** @see AudioManager#setStreamVolume(int, int, int) */ 593 public void setStreamVolume(int streamType, int index, int flags) { 594 ensureValidStreamType(streamType); 595 VolumeStreamState streamState = mStreamStates[STREAM_VOLUME_ALIAS[streamType]]; 596 597 final int oldIndex = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 598 599 // setting ring or notifications volume to 0 on voice capable devices enters silent mode 600 if (mVoiceCapable && (((flags & AudioManager.FLAG_ALLOW_RINGER_MODES) != 0) || 601 (STREAM_VOLUME_ALIAS[streamType] == AudioSystem.STREAM_RING))) { 602 int newRingerMode = mRingerMode; 603 if (index == 0) { 604 newRingerMode = System.getInt(mContentResolver, System.VIBRATE_IN_SILENT, 1) == 1 605 ? AudioManager.RINGER_MODE_VIBRATE 606 : AudioManager.RINGER_MODE_SILENT; 607 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, false, true); 608 } else { 609 newRingerMode = AudioManager.RINGER_MODE_NORMAL; 610 } 611 if (newRingerMode != mRingerMode) { 612 setRingerMode(newRingerMode); 613 } 614 } 615 616 index = rescaleIndex(index * 10, streamType, STREAM_VOLUME_ALIAS[streamType]); 617 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, false, true); 618 619 index = (streamState.muteCount() != 0) ? streamState.mLastAudibleIndex : streamState.mIndex; 620 621 sendVolumeUpdate(streamType, oldIndex, index, flags); 622 } 623 624 // UI update and Broadcast Intent 625 private void sendVolumeUpdate(int streamType, int oldIndex, int index, int flags) { 626 if (!mVoiceCapable && (streamType == AudioSystem.STREAM_RING)) { 627 streamType = AudioSystem.STREAM_NOTIFICATION; 628 } 629 630 mVolumePanel.postVolumeChanged(streamType, flags); 631 632 oldIndex = (oldIndex + 5) / 10; 633 index = (index + 5) / 10; 634 Intent intent = new Intent(AudioManager.VOLUME_CHANGED_ACTION); 635 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_TYPE, streamType); 636 intent.putExtra(AudioManager.EXTRA_VOLUME_STREAM_VALUE, index); 637 intent.putExtra(AudioManager.EXTRA_PREV_VOLUME_STREAM_VALUE, oldIndex); 638 mContext.sendBroadcast(intent); 639 } 640 641 /** 642 * Sets the stream state's index, and posts a message to set system volume. 643 * This will not call out to the UI. Assumes a valid stream type. 644 * 645 * @param streamType Type of the stream 646 * @param index Desired volume index of the stream 647 * @param force If true, set the volume even if the desired volume is same 648 * as the current volume. 649 * @param lastAudible If true, stores new index as last audible one 650 */ 651 private void setStreamVolumeInt(int streamType, int index, boolean force, boolean lastAudible) { 652 VolumeStreamState streamState = mStreamStates[streamType]; 653 654 // If stream is muted, set last audible index only 655 if (streamState.muteCount() != 0) { 656 // Do not allow last audible index to be 0 657 if (index != 0) { 658 streamState.setLastAudibleIndex(index); 659 // Post a persist volume msg 660 sendMsg(mAudioHandler, 661 MSG_PERSIST_VOLUME, 662 SENDMSG_REPLACE, 663 PERSIST_LAST_AUDIBLE, 664 0, 665 streamState, 666 PERSIST_DELAY); 667 } 668 } else { 669 if (streamState.setIndex(index, lastAudible) || force) { 670 // Post message to set system volume (it in turn will post a message 671 // to persist). 672 sendMsg(mAudioHandler, 673 MSG_SET_SYSTEM_VOLUME, 674 SENDMSG_NOOP, 675 0, 676 0, 677 streamState, 678 0); 679 } 680 } 681 } 682 683 /** @see AudioManager#setStreamSolo(int, boolean) */ 684 public void setStreamSolo(int streamType, boolean state, IBinder cb) { 685 for (int stream = 0; stream < mStreamStates.length; stream++) { 686 if (!isStreamAffectedByMute(stream) || stream == streamType) continue; 687 // Bring back last audible volume 688 mStreamStates[stream].mute(cb, state); 689 } 690 } 691 692 /** @see AudioManager#setStreamMute(int, boolean) */ 693 public void setStreamMute(int streamType, boolean state, IBinder cb) { 694 if (isStreamAffectedByMute(streamType)) { 695 mStreamStates[streamType].mute(cb, state); 696 } 697 } 698 699 /** get stream mute state. */ 700 public boolean isStreamMute(int streamType) { 701 return (mStreamStates[streamType].muteCount() != 0); 702 } 703 704 /** @see AudioManager#getStreamVolume(int) */ 705 public int getStreamVolume(int streamType) { 706 ensureValidStreamType(streamType); 707 return (mStreamStates[streamType].mIndex + 5) / 10; 708 } 709 710 /** @see AudioManager#getStreamMaxVolume(int) */ 711 public int getStreamMaxVolume(int streamType) { 712 ensureValidStreamType(streamType); 713 return (mStreamStates[streamType].getMaxIndex() + 5) / 10; 714 } 715 716 717 /** Get last audible volume before stream was muted. */ 718 public int getLastAudibleStreamVolume(int streamType) { 719 ensureValidStreamType(streamType); 720 return (mStreamStates[streamType].mLastAudibleIndex + 5) / 10; 721 } 722 723 /** @see AudioManager#getRingerMode() */ 724 public int getRingerMode() { 725 return mRingerMode; 726 } 727 728 /** @see AudioManager#setRingerMode(int) */ 729 public void setRingerMode(int ringerMode) { 730 synchronized (mSettingsLock) { 731 if (ringerMode != mRingerMode) { 732 setRingerModeInt(ringerMode, true); 733 // Send sticky broadcast 734 broadcastRingerMode(); 735 } 736 } 737 } 738 739 private void setRingerModeInt(int ringerMode, boolean persist) { 740 mRingerMode = ringerMode; 741 742 // Mute stream if not previously muted by ringer mode and ringer mode 743 // is not RINGER_MODE_NORMAL and stream is affected by ringer mode. 744 // Unmute stream if previously muted by ringer mode and ringer mode 745 // is RINGER_MODE_NORMAL or stream is not affected by ringer mode. 746 int numStreamTypes = AudioSystem.getNumStreamTypes(); 747 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 748 if (isStreamMutedByRingerMode(streamType)) { 749 if (!isStreamAffectedByRingerMode(streamType) || 750 mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 751 // ring and notifications volume should never be 0 when not silenced 752 // on voice capable devices 753 if (mVoiceCapable && 754 STREAM_VOLUME_ALIAS[streamType] == AudioSystem.STREAM_RING && 755 mStreamStates[streamType].mLastAudibleIndex == 0) { 756 mStreamStates[streamType].mLastAudibleIndex = 10; 757 } 758 mStreamStates[streamType].mute(null, false); 759 mRingerModeMutedStreams &= ~(1 << streamType); 760 } 761 } else { 762 if (isStreamAffectedByRingerMode(streamType) && 763 mRingerMode != AudioManager.RINGER_MODE_NORMAL) { 764 mStreamStates[streamType].mute(null, true); 765 mRingerModeMutedStreams |= (1 << streamType); 766 } 767 } 768 } 769 770 // Post a persist ringer mode msg 771 if (persist) { 772 sendMsg(mAudioHandler, MSG_PERSIST_RINGER_MODE, 773 SENDMSG_REPLACE, 0, 0, null, PERSIST_DELAY); 774 } 775 } 776 777 /** @see AudioManager#shouldVibrate(int) */ 778 public boolean shouldVibrate(int vibrateType) { 779 780 switch (getVibrateSetting(vibrateType)) { 781 782 case AudioManager.VIBRATE_SETTING_ON: 783 return mRingerMode != AudioManager.RINGER_MODE_SILENT; 784 785 case AudioManager.VIBRATE_SETTING_ONLY_SILENT: 786 return mRingerMode == AudioManager.RINGER_MODE_VIBRATE; 787 788 case AudioManager.VIBRATE_SETTING_OFF: 789 // return false, even for incoming calls 790 return false; 791 792 default: 793 return false; 794 } 795 } 796 797 /** @see AudioManager#getVibrateSetting(int) */ 798 public int getVibrateSetting(int vibrateType) { 799 return (mVibrateSetting >> (vibrateType * 2)) & 3; 800 } 801 802 /** @see AudioManager#setVibrateSetting(int, int) */ 803 public void setVibrateSetting(int vibrateType, int vibrateSetting) { 804 805 mVibrateSetting = getValueForVibrateSetting(mVibrateSetting, vibrateType, vibrateSetting); 806 807 // Broadcast change 808 broadcastVibrateSetting(vibrateType); 809 810 // Post message to set ringer mode (it in turn will post a message 811 // to persist) 812 sendMsg(mAudioHandler, MSG_PERSIST_VIBRATE_SETTING, SENDMSG_NOOP, 0, 0, 813 null, 0); 814 } 815 816 /** 817 * @see #setVibrateSetting(int, int) 818 */ 819 public static int getValueForVibrateSetting(int existingValue, int vibrateType, 820 int vibrateSetting) { 821 822 // First clear the existing setting. Each vibrate type has two bits in 823 // the value. Note '3' is '11' in binary. 824 existingValue &= ~(3 << (vibrateType * 2)); 825 826 // Set into the old value 827 existingValue |= (vibrateSetting & 3) << (vibrateType * 2); 828 829 return existingValue; 830 } 831 832 private class SetModeDeathHandler implements IBinder.DeathRecipient { 833 private IBinder mCb; // To be notified of client's death 834 private int mPid; 835 private int mMode = AudioSystem.MODE_NORMAL; // Current mode set by this client 836 837 SetModeDeathHandler(IBinder cb, int pid) { 838 mCb = cb; 839 mPid = pid; 840 } 841 842 public void binderDied() { 843 int newModeOwnerPid = 0; 844 synchronized(mSetModeDeathHandlers) { 845 Log.w(TAG, "setMode() client died"); 846 int index = mSetModeDeathHandlers.indexOf(this); 847 if (index < 0) { 848 Log.w(TAG, "unregistered setMode() client died"); 849 } else { 850 newModeOwnerPid = setModeInt(AudioSystem.MODE_NORMAL, mCb, mPid); 851 } 852 } 853 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 854 // SCO connections not started by the application changing the mode 855 if (newModeOwnerPid != 0) { 856 disconnectBluetoothSco(newModeOwnerPid); 857 } 858 } 859 860 public int getPid() { 861 return mPid; 862 } 863 864 public void setMode(int mode) { 865 mMode = mode; 866 } 867 868 public int getMode() { 869 return mMode; 870 } 871 872 public IBinder getBinder() { 873 return mCb; 874 } 875 } 876 877 /** @see AudioManager#setMode(int) */ 878 public void setMode(int mode, IBinder cb) { 879 if (!checkAudioSettingsPermission("setMode()")) { 880 return; 881 } 882 883 if (mode < AudioSystem.MODE_CURRENT || mode >= AudioSystem.NUM_MODES) { 884 return; 885 } 886 887 int newModeOwnerPid = 0; 888 synchronized(mSetModeDeathHandlers) { 889 if (mode == AudioSystem.MODE_CURRENT) { 890 mode = mMode; 891 } 892 newModeOwnerPid = setModeInt(mode, cb, Binder.getCallingPid()); 893 } 894 // when entering RINGTONE, IN_CALL or IN_COMMUNICATION mode, clear all 895 // SCO connections not started by the application changing the mode 896 if (newModeOwnerPid != 0) { 897 disconnectBluetoothSco(newModeOwnerPid); 898 } 899 } 900 901 // must be called synchronized on mSetModeDeathHandlers 902 // setModeInt() returns a valid PID if the audio mode was successfully set to 903 // any mode other than NORMAL. 904 int setModeInt(int mode, IBinder cb, int pid) { 905 int newModeOwnerPid = 0; 906 if (cb == null) { 907 Log.e(TAG, "setModeInt() called with null binder"); 908 return newModeOwnerPid; 909 } 910 911 SetModeDeathHandler hdlr = null; 912 Iterator iter = mSetModeDeathHandlers.iterator(); 913 while (iter.hasNext()) { 914 SetModeDeathHandler h = (SetModeDeathHandler)iter.next(); 915 if (h.getPid() == pid) { 916 hdlr = h; 917 // Remove from client list so that it is re-inserted at top of list 918 iter.remove(); 919 hdlr.getBinder().unlinkToDeath(hdlr, 0); 920 break; 921 } 922 } 923 int status = AudioSystem.AUDIO_STATUS_OK; 924 do { 925 if (mode == AudioSystem.MODE_NORMAL) { 926 // get new mode from client at top the list if any 927 if (!mSetModeDeathHandlers.isEmpty()) { 928 hdlr = mSetModeDeathHandlers.get(0); 929 cb = hdlr.getBinder(); 930 mode = hdlr.getMode(); 931 } 932 } else { 933 if (hdlr == null) { 934 hdlr = new SetModeDeathHandler(cb, pid); 935 } 936 // Register for client death notification 937 try { 938 cb.linkToDeath(hdlr, 0); 939 } catch (RemoteException e) { 940 // Client has died! 941 Log.w(TAG, "setMode() could not link to "+cb+" binder death"); 942 } 943 944 // Last client to call setMode() is always at top of client list 945 // as required by SetModeDeathHandler.binderDied() 946 mSetModeDeathHandlers.add(0, hdlr); 947 hdlr.setMode(mode); 948 } 949 950 if (mode != mMode) { 951 status = AudioSystem.setPhoneState(mode); 952 if (status == AudioSystem.AUDIO_STATUS_OK) { 953 // automatically handle audio focus for mode changes 954 handleFocusForCalls(mMode, mode, cb); 955 mMode = mode; 956 } else { 957 if (hdlr != null) { 958 mSetModeDeathHandlers.remove(hdlr); 959 cb.unlinkToDeath(hdlr, 0); 960 } 961 // force reading new top of mSetModeDeathHandlers stack 962 mode = AudioSystem.MODE_NORMAL; 963 } 964 } else { 965 status = AudioSystem.AUDIO_STATUS_OK; 966 } 967 } while (status != AudioSystem.AUDIO_STATUS_OK && !mSetModeDeathHandlers.isEmpty()); 968 969 if (status == AudioSystem.AUDIO_STATUS_OK) { 970 if (mode != AudioSystem.MODE_NORMAL) { 971 if (mSetModeDeathHandlers.isEmpty()) { 972 Log.e(TAG, "setMode() different from MODE_NORMAL with empty mode client stack"); 973 } else { 974 newModeOwnerPid = mSetModeDeathHandlers.get(0).getPid(); 975 } 976 } 977 int streamType = getActiveStreamType(AudioManager.USE_DEFAULT_STREAM_TYPE); 978 int index = mStreamStates[STREAM_VOLUME_ALIAS[streamType]].mIndex; 979 setStreamVolumeInt(STREAM_VOLUME_ALIAS[streamType], index, true, false); 980 } 981 return newModeOwnerPid; 982 } 983 984 /** pre-condition: oldMode != newMode */ 985 private void handleFocusForCalls(int oldMode, int newMode, IBinder cb) { 986 // if ringing 987 if (newMode == AudioSystem.MODE_RINGTONE) { 988 // if not ringing silently 989 int ringVolume = AudioService.this.getStreamVolume(AudioManager.STREAM_RING); 990 if (ringVolume > 0) { 991 // request audio focus for the communication focus entry 992 requestAudioFocus(AudioManager.STREAM_RING, 993 AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, cb, 994 null /* IAudioFocusDispatcher allowed to be null only for this clientId */, 995 IN_VOICE_COMM_FOCUS_ID /*clientId*/, 996 "system"); 997 998 } 999 } 1000 // if entering call 1001 else if ((newMode == AudioSystem.MODE_IN_CALL) 1002 || (newMode == AudioSystem.MODE_IN_COMMUNICATION)) { 1003 // request audio focus for the communication focus entry 1004 // (it's ok if focus was already requested during ringing) 1005 requestAudioFocus(AudioManager.STREAM_RING, 1006 AudioManager.AUDIOFOCUS_GAIN_TRANSIENT, cb, 1007 null /* IAudioFocusDispatcher allowed to be null only for this clientId */, 1008 IN_VOICE_COMM_FOCUS_ID /*clientId*/, 1009 "system"); 1010 } 1011 // if exiting call 1012 else if (newMode == AudioSystem.MODE_NORMAL) { 1013 // abandon audio focus for communication focus entry 1014 abandonAudioFocus(null, IN_VOICE_COMM_FOCUS_ID); 1015 } 1016 } 1017 1018 /** @see AudioManager#getMode() */ 1019 public int getMode() { 1020 return mMode; 1021 } 1022 1023 /** @see AudioManager#playSoundEffect(int) */ 1024 public void playSoundEffect(int effectType) { 1025 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SENDMSG_NOOP, 1026 effectType, -1, null, 0); 1027 } 1028 1029 /** @see AudioManager#playSoundEffect(int, float) */ 1030 public void playSoundEffectVolume(int effectType, float volume) { 1031 loadSoundEffects(); 1032 sendMsg(mAudioHandler, MSG_PLAY_SOUND_EFFECT, SENDMSG_NOOP, 1033 effectType, (int) (volume * 1000), null, 0); 1034 } 1035 1036 /** 1037 * Loads samples into the soundpool. 1038 * This method must be called at when sound effects are enabled 1039 */ 1040 public boolean loadSoundEffects() { 1041 int status; 1042 1043 synchronized (mSoundEffectsLock) { 1044 if (!mBootCompleted) { 1045 Log.w(TAG, "loadSoundEffects() called before boot complete"); 1046 return false; 1047 } 1048 1049 if (mSoundPool != null) { 1050 return true; 1051 } 1052 mSoundPool = new SoundPool(NUM_SOUNDPOOL_CHANNELS, AudioSystem.STREAM_SYSTEM, 0); 1053 1054 try { 1055 mSoundPoolCallBack = null; 1056 mSoundPoolListenerThread = new SoundPoolListenerThread(); 1057 mSoundPoolListenerThread.start(); 1058 // Wait for mSoundPoolCallBack to be set by the other thread 1059 mSoundEffectsLock.wait(); 1060 } catch (InterruptedException e) { 1061 Log.w(TAG, "Interrupted while waiting sound pool listener thread."); 1062 } 1063 1064 if (mSoundPoolCallBack == null) { 1065 Log.w(TAG, "loadSoundEffects() could not create SoundPool listener or thread"); 1066 if (mSoundPoolLooper != null) { 1067 mSoundPoolLooper.quit(); 1068 mSoundPoolLooper = null; 1069 } 1070 mSoundPoolListenerThread = null; 1071 mSoundPool.release(); 1072 mSoundPool = null; 1073 return false; 1074 } 1075 /* 1076 * poolId table: The value -1 in this table indicates that corresponding 1077 * file (same index in SOUND_EFFECT_FILES[] has not been loaded. 1078 * Once loaded, the value in poolId is the sample ID and the same 1079 * sample can be reused for another effect using the same file. 1080 */ 1081 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1082 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1083 poolId[fileIdx] = -1; 1084 } 1085 /* 1086 * Effects whose value in SOUND_EFFECT_FILES_MAP[effect][1] is -1 must be loaded. 1087 * If load succeeds, value in SOUND_EFFECT_FILES_MAP[effect][1] is > 0: 1088 * this indicates we have a valid sample loaded for this effect. 1089 */ 1090 1091 int lastSample = 0; 1092 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1093 // Do not load sample if this effect uses the MediaPlayer 1094 if (SOUND_EFFECT_FILES_MAP[effect][1] == 0) { 1095 continue; 1096 } 1097 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == -1) { 1098 String filePath = Environment.getRootDirectory() 1099 + SOUND_EFFECTS_PATH 1100 + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effect][0]]; 1101 int sampleId = mSoundPool.load(filePath, 0); 1102 if (sampleId <= 0) { 1103 Log.w(TAG, "Soundpool could not load file: "+filePath); 1104 } else { 1105 SOUND_EFFECT_FILES_MAP[effect][1] = sampleId; 1106 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = sampleId; 1107 lastSample = sampleId; 1108 } 1109 } else { 1110 SOUND_EFFECT_FILES_MAP[effect][1] = poolId[SOUND_EFFECT_FILES_MAP[effect][0]]; 1111 } 1112 } 1113 // wait for all samples to be loaded 1114 if (lastSample != 0) { 1115 mSoundPoolCallBack.setLastSample(lastSample); 1116 1117 try { 1118 mSoundEffectsLock.wait(); 1119 status = mSoundPoolCallBack.status(); 1120 } catch (java.lang.InterruptedException e) { 1121 Log.w(TAG, "Interrupted while waiting sound pool callback."); 1122 status = -1; 1123 } 1124 } else { 1125 status = -1; 1126 } 1127 1128 if (mSoundPoolLooper != null) { 1129 mSoundPoolLooper.quit(); 1130 mSoundPoolLooper = null; 1131 } 1132 mSoundPoolListenerThread = null; 1133 if (status != 0) { 1134 Log.w(TAG, 1135 "loadSoundEffects(), Error " 1136 + ((lastSample != 0) ? mSoundPoolCallBack.status() : -1) 1137 + " while loading samples"); 1138 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1139 if (SOUND_EFFECT_FILES_MAP[effect][1] > 0) { 1140 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1141 } 1142 } 1143 1144 mSoundPool.release(); 1145 mSoundPool = null; 1146 } 1147 } 1148 return (status == 0); 1149 } 1150 1151 /** 1152 * Unloads samples from the sound pool. 1153 * This method can be called to free some memory when 1154 * sound effects are disabled. 1155 */ 1156 public void unloadSoundEffects() { 1157 synchronized (mSoundEffectsLock) { 1158 if (mSoundPool == null) { 1159 return; 1160 } 1161 1162 mAudioHandler.removeMessages(MSG_LOAD_SOUND_EFFECTS); 1163 mAudioHandler.removeMessages(MSG_PLAY_SOUND_EFFECT); 1164 1165 int[] poolId = new int[SOUND_EFFECT_FILES.length]; 1166 for (int fileIdx = 0; fileIdx < SOUND_EFFECT_FILES.length; fileIdx++) { 1167 poolId[fileIdx] = 0; 1168 } 1169 1170 for (int effect = 0; effect < AudioManager.NUM_SOUND_EFFECTS; effect++) { 1171 if (SOUND_EFFECT_FILES_MAP[effect][1] <= 0) { 1172 continue; 1173 } 1174 if (poolId[SOUND_EFFECT_FILES_MAP[effect][0]] == 0) { 1175 mSoundPool.unload(SOUND_EFFECT_FILES_MAP[effect][1]); 1176 SOUND_EFFECT_FILES_MAP[effect][1] = -1; 1177 poolId[SOUND_EFFECT_FILES_MAP[effect][0]] = -1; 1178 } 1179 } 1180 mSoundPool.release(); 1181 mSoundPool = null; 1182 } 1183 } 1184 1185 class SoundPoolListenerThread extends Thread { 1186 public SoundPoolListenerThread() { 1187 super("SoundPoolListenerThread"); 1188 } 1189 1190 @Override 1191 public void run() { 1192 1193 Looper.prepare(); 1194 mSoundPoolLooper = Looper.myLooper(); 1195 1196 synchronized (mSoundEffectsLock) { 1197 if (mSoundPool != null) { 1198 mSoundPoolCallBack = new SoundPoolCallback(); 1199 mSoundPool.setOnLoadCompleteListener(mSoundPoolCallBack); 1200 } 1201 mSoundEffectsLock.notify(); 1202 } 1203 Looper.loop(); 1204 } 1205 } 1206 1207 private final class SoundPoolCallback implements 1208 android.media.SoundPool.OnLoadCompleteListener { 1209 1210 int mStatus; 1211 int mLastSample; 1212 1213 public int status() { 1214 return mStatus; 1215 } 1216 1217 public void setLastSample(int sample) { 1218 mLastSample = sample; 1219 } 1220 1221 public void onLoadComplete(SoundPool soundPool, int sampleId, int status) { 1222 synchronized (mSoundEffectsLock) { 1223 if (status != 0) { 1224 mStatus = status; 1225 } 1226 if (sampleId == mLastSample) { 1227 mSoundEffectsLock.notify(); 1228 } 1229 } 1230 } 1231 } 1232 1233 /** @see AudioManager#reloadAudioSettings() */ 1234 public void reloadAudioSettings() { 1235 // restore ringer mode, ringer mode affected streams, mute affected streams and vibrate settings 1236 readPersistedSettings(); 1237 1238 // restore volume settings 1239 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1240 for (int streamType = 0; streamType < numStreamTypes; streamType++) { 1241 VolumeStreamState streamState = mStreamStates[streamType]; 1242 1243 String settingName = System.VOLUME_SETTINGS[STREAM_VOLUME_ALIAS[streamType]]; 1244 String lastAudibleSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 1245 int index = Settings.System.getInt(mContentResolver, 1246 settingName, 1247 AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1248 if (STREAM_VOLUME_ALIAS[streamType] != streamType) { 1249 index = rescaleIndex(index * 10, STREAM_VOLUME_ALIAS[streamType], streamType); 1250 } else { 1251 index *= 10; 1252 } 1253 streamState.mIndex = streamState.getValidIndex(index); 1254 1255 index = (index + 5) / 10; 1256 index = Settings.System.getInt(mContentResolver, 1257 lastAudibleSettingName, 1258 (index > 0) ? index : AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1259 if (STREAM_VOLUME_ALIAS[streamType] != streamType) { 1260 index = rescaleIndex(index * 10, STREAM_VOLUME_ALIAS[streamType], streamType); 1261 } else { 1262 index *= 10; 1263 } 1264 streamState.mLastAudibleIndex = streamState.getValidIndex(index); 1265 1266 // unmute stream that was muted but is not affect by mute anymore 1267 if (streamState.muteCount() != 0 && !isStreamAffectedByMute(streamType)) { 1268 int size = streamState.mDeathHandlers.size(); 1269 for (int i = 0; i < size; i++) { 1270 streamState.mDeathHandlers.get(i).mMuteCount = 1; 1271 streamState.mDeathHandlers.get(i).mute(false); 1272 } 1273 } 1274 // apply stream volume 1275 if (streamState.muteCount() == 0) { 1276 setStreamVolumeIndex(streamType, streamState.mIndex); 1277 } 1278 } 1279 1280 // apply new ringer mode 1281 setRingerModeInt(getRingerMode(), false); 1282 } 1283 1284 /** @see AudioManager#setSpeakerphoneOn() */ 1285 public void setSpeakerphoneOn(boolean on){ 1286 if (!checkAudioSettingsPermission("setSpeakerphoneOn()")) { 1287 return; 1288 } 1289 mForcedUseForComm = on ? AudioSystem.FORCE_SPEAKER : AudioSystem.FORCE_NONE; 1290 1291 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 1292 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1293 } 1294 1295 /** @see AudioManager#isSpeakerphoneOn() */ 1296 public boolean isSpeakerphoneOn() { 1297 return (mForcedUseForComm == AudioSystem.FORCE_SPEAKER); 1298 } 1299 1300 /** @see AudioManager#setBluetoothScoOn() */ 1301 public void setBluetoothScoOn(boolean on){ 1302 if (!checkAudioSettingsPermission("setBluetoothScoOn()")) { 1303 return; 1304 } 1305 mForcedUseForComm = on ? AudioSystem.FORCE_BT_SCO : AudioSystem.FORCE_NONE; 1306 1307 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 1308 AudioSystem.FOR_COMMUNICATION, mForcedUseForComm, null, 0); 1309 sendMsg(mAudioHandler, MSG_SET_FORCE_USE, SENDMSG_QUEUE, 1310 AudioSystem.FOR_RECORD, mForcedUseForComm, null, 0); 1311 } 1312 1313 /** @see AudioManager#isBluetoothScoOn() */ 1314 public boolean isBluetoothScoOn() { 1315 return (mForcedUseForComm == AudioSystem.FORCE_BT_SCO); 1316 } 1317 1318 /** @see AudioManager#startBluetoothSco() */ 1319 public void startBluetoothSco(IBinder cb){ 1320 if (!checkAudioSettingsPermission("startBluetoothSco()") || 1321 !mBootCompleted) { 1322 return; 1323 } 1324 ScoClient client = getScoClient(cb, true); 1325 client.incCount(); 1326 } 1327 1328 /** @see AudioManager#stopBluetoothSco() */ 1329 public void stopBluetoothSco(IBinder cb){ 1330 if (!checkAudioSettingsPermission("stopBluetoothSco()") || 1331 !mBootCompleted) { 1332 return; 1333 } 1334 ScoClient client = getScoClient(cb, false); 1335 if (client != null) { 1336 client.decCount(); 1337 } 1338 } 1339 1340 private class ScoClient implements IBinder.DeathRecipient { 1341 private IBinder mCb; // To be notified of client's death 1342 private int mCreatorPid; 1343 private int mStartcount; // number of SCO connections started by this client 1344 1345 ScoClient(IBinder cb) { 1346 mCb = cb; 1347 mCreatorPid = Binder.getCallingPid(); 1348 mStartcount = 0; 1349 } 1350 1351 public void binderDied() { 1352 synchronized(mScoClients) { 1353 Log.w(TAG, "SCO client died"); 1354 int index = mScoClients.indexOf(this); 1355 if (index < 0) { 1356 Log.w(TAG, "unregistered SCO client died"); 1357 } else { 1358 clearCount(true); 1359 mScoClients.remove(this); 1360 } 1361 } 1362 } 1363 1364 public void incCount() { 1365 synchronized(mScoClients) { 1366 requestScoState(BluetoothHeadset.STATE_AUDIO_CONNECTED); 1367 if (mStartcount == 0) { 1368 try { 1369 mCb.linkToDeath(this, 0); 1370 } catch (RemoteException e) { 1371 // client has already died! 1372 Log.w(TAG, "ScoClient incCount() could not link to "+mCb+" binder death"); 1373 } 1374 } 1375 mStartcount++; 1376 } 1377 } 1378 1379 public void decCount() { 1380 synchronized(mScoClients) { 1381 if (mStartcount == 0) { 1382 Log.w(TAG, "ScoClient.decCount() already 0"); 1383 } else { 1384 mStartcount--; 1385 if (mStartcount == 0) { 1386 try { 1387 mCb.unlinkToDeath(this, 0); 1388 } catch (NoSuchElementException e) { 1389 Log.w(TAG, "decCount() going to 0 but not registered to binder"); 1390 } 1391 } 1392 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1393 } 1394 } 1395 } 1396 1397 public void clearCount(boolean stopSco) { 1398 synchronized(mScoClients) { 1399 if (mStartcount != 0) { 1400 try { 1401 mCb.unlinkToDeath(this, 0); 1402 } catch (NoSuchElementException e) { 1403 Log.w(TAG, "clearCount() mStartcount: "+mStartcount+" != 0 but not registered to binder"); 1404 } 1405 } 1406 mStartcount = 0; 1407 if (stopSco) { 1408 requestScoState(BluetoothHeadset.STATE_AUDIO_DISCONNECTED); 1409 } 1410 } 1411 } 1412 1413 public int getCount() { 1414 return mStartcount; 1415 } 1416 1417 public IBinder getBinder() { 1418 return mCb; 1419 } 1420 1421 public int getPid() { 1422 return mCreatorPid; 1423 } 1424 1425 public int totalCount() { 1426 synchronized(mScoClients) { 1427 int count = 0; 1428 int size = mScoClients.size(); 1429 for (int i = 0; i < size; i++) { 1430 count += mScoClients.get(i).getCount(); 1431 } 1432 return count; 1433 } 1434 } 1435 1436 private void requestScoState(int state) { 1437 checkScoAudioState(); 1438 if (totalCount() == 0) { 1439 if (state == BluetoothHeadset.STATE_AUDIO_CONNECTED) { 1440 // Make sure that the state transitions to CONNECTING even if we cannot initiate 1441 // the connection. 1442 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTING); 1443 // Accept SCO audio activation only in NORMAL audio mode or if the mode is 1444 // currently controlled by the same client process. 1445 synchronized(mSetModeDeathHandlers) { 1446 if ((mSetModeDeathHandlers.isEmpty() || 1447 mSetModeDeathHandlers.get(0).getPid() == mCreatorPid) && 1448 (mScoAudioState == SCO_STATE_INACTIVE || 1449 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 1450 if (mScoAudioState == SCO_STATE_INACTIVE) { 1451 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null) { 1452 if (mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1453 mBluetoothHeadsetDevice)) { 1454 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1455 } else { 1456 broadcastScoConnectionState( 1457 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1458 } 1459 } else if (getBluetoothHeadset()) { 1460 mScoAudioState = SCO_STATE_ACTIVATE_REQ; 1461 } 1462 } else { 1463 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1464 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_CONNECTED); 1465 } 1466 } else { 1467 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1468 } 1469 } 1470 } else if (state == BluetoothHeadset.STATE_AUDIO_DISCONNECTED && 1471 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 1472 mScoAudioState == SCO_STATE_ACTIVATE_REQ)) { 1473 if (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL) { 1474 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null) { 1475 if (!mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1476 mBluetoothHeadsetDevice)) { 1477 mScoAudioState = SCO_STATE_INACTIVE; 1478 broadcastScoConnectionState( 1479 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1480 } 1481 } else if (getBluetoothHeadset()) { 1482 mScoAudioState = SCO_STATE_DEACTIVATE_REQ; 1483 } 1484 } else { 1485 mScoAudioState = SCO_STATE_INACTIVE; 1486 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1487 } 1488 } 1489 } 1490 } 1491 } 1492 1493 private void checkScoAudioState() { 1494 if (mBluetoothHeadset != null && mBluetoothHeadsetDevice != null && 1495 mScoAudioState == SCO_STATE_INACTIVE && 1496 mBluetoothHeadset.getAudioState(mBluetoothHeadsetDevice) 1497 != BluetoothHeadset.STATE_AUDIO_DISCONNECTED) { 1498 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 1499 } 1500 } 1501 1502 private ScoClient getScoClient(IBinder cb, boolean create) { 1503 synchronized(mScoClients) { 1504 ScoClient client = null; 1505 int size = mScoClients.size(); 1506 for (int i = 0; i < size; i++) { 1507 client = mScoClients.get(i); 1508 if (client.getBinder() == cb) 1509 return client; 1510 } 1511 if (create) { 1512 client = new ScoClient(cb); 1513 mScoClients.add(client); 1514 } 1515 return client; 1516 } 1517 } 1518 1519 public void clearAllScoClients(int exceptPid, boolean stopSco) { 1520 synchronized(mScoClients) { 1521 ScoClient savedClient = null; 1522 int size = mScoClients.size(); 1523 for (int i = 0; i < size; i++) { 1524 ScoClient cl = mScoClients.get(i); 1525 if (cl.getPid() != exceptPid) { 1526 cl.clearCount(stopSco); 1527 } else { 1528 savedClient = cl; 1529 } 1530 } 1531 mScoClients.clear(); 1532 if (savedClient != null) { 1533 mScoClients.add(savedClient); 1534 } 1535 } 1536 } 1537 1538 private boolean getBluetoothHeadset() { 1539 boolean result = false; 1540 BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 1541 if (adapter != null) { 1542 result = adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener, 1543 BluetoothProfile.HEADSET); 1544 } 1545 // If we could not get a bluetooth headset proxy, send a failure message 1546 // without delay to reset the SCO audio state and clear SCO clients. 1547 // If we could get a proxy, send a delayed failure message that will reset our state 1548 // in case we don't receive onServiceConnected(). 1549 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 1550 SENDMSG_REPLACE, 0, 0, null, result ? BT_HEADSET_CNCT_TIMEOUT_MS : 0); 1551 return result; 1552 } 1553 1554 private void disconnectBluetoothSco(int exceptPid) { 1555 synchronized(mScoClients) { 1556 checkScoAudioState(); 1557 if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL || 1558 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1559 if (mBluetoothHeadsetDevice != null) { 1560 if (mBluetoothHeadset != null) { 1561 if (!mBluetoothHeadset.stopVoiceRecognition( 1562 mBluetoothHeadsetDevice)) { 1563 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 1564 SENDMSG_REPLACE, 0, 0, null, 0); 1565 } 1566 } else if (mScoAudioState == SCO_STATE_ACTIVE_EXTERNAL && 1567 getBluetoothHeadset()) { 1568 mScoAudioState = SCO_STATE_DEACTIVATE_EXT_REQ; 1569 } 1570 } 1571 } else { 1572 clearAllScoClients(exceptPid, true); 1573 } 1574 } 1575 } 1576 1577 private void resetBluetoothSco() { 1578 synchronized(mScoClients) { 1579 clearAllScoClients(0, false); 1580 mScoAudioState = SCO_STATE_INACTIVE; 1581 broadcastScoConnectionState(AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 1582 } 1583 } 1584 1585 private void broadcastScoConnectionState(int state) { 1586 if (state != mScoConnectionState) { 1587 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED); 1588 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 1589 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_PREVIOUS_STATE, 1590 mScoConnectionState); 1591 mContext.sendStickyBroadcast(newIntent); 1592 mScoConnectionState = state; 1593 } 1594 } 1595 1596 private BluetoothProfile.ServiceListener mBluetoothProfileServiceListener = 1597 new BluetoothProfile.ServiceListener() { 1598 public void onServiceConnected(int profile, BluetoothProfile proxy) { 1599 BluetoothDevice btDevice; 1600 List<BluetoothDevice> deviceList; 1601 switch(profile) { 1602 case BluetoothProfile.A2DP: 1603 BluetoothA2dp a2dp = (BluetoothA2dp) proxy; 1604 deviceList = a2dp.getConnectedDevices(); 1605 if (deviceList.size() > 0) { 1606 btDevice = deviceList.get(0); 1607 handleA2dpConnectionStateChange(btDevice, a2dp.getConnectionState(btDevice)); 1608 } 1609 break; 1610 1611 case BluetoothProfile.HEADSET: 1612 synchronized (mScoClients) { 1613 // Discard timeout message 1614 mAudioHandler.removeMessages(MSG_BT_HEADSET_CNCT_FAILED); 1615 mBluetoothHeadset = (BluetoothHeadset) proxy; 1616 deviceList = mBluetoothHeadset.getConnectedDevices(); 1617 if (deviceList.size() > 0) { 1618 mBluetoothHeadsetDevice = deviceList.get(0); 1619 } else { 1620 mBluetoothHeadsetDevice = null; 1621 } 1622 // Refresh SCO audio state 1623 checkScoAudioState(); 1624 // Continue pending action if any 1625 if (mScoAudioState == SCO_STATE_ACTIVATE_REQ || 1626 mScoAudioState == SCO_STATE_DEACTIVATE_REQ || 1627 mScoAudioState == SCO_STATE_DEACTIVATE_EXT_REQ) { 1628 boolean status = false; 1629 if (mBluetoothHeadsetDevice != null) { 1630 switch (mScoAudioState) { 1631 case SCO_STATE_ACTIVATE_REQ: 1632 mScoAudioState = SCO_STATE_ACTIVE_INTERNAL; 1633 status = mBluetoothHeadset.startScoUsingVirtualVoiceCall( 1634 mBluetoothHeadsetDevice); 1635 break; 1636 case SCO_STATE_DEACTIVATE_REQ: 1637 status = mBluetoothHeadset.stopScoUsingVirtualVoiceCall( 1638 mBluetoothHeadsetDevice); 1639 break; 1640 case SCO_STATE_DEACTIVATE_EXT_REQ: 1641 status = mBluetoothHeadset.stopVoiceRecognition( 1642 mBluetoothHeadsetDevice); 1643 } 1644 } 1645 if (!status) { 1646 sendMsg(mAudioHandler, MSG_BT_HEADSET_CNCT_FAILED, 1647 SENDMSG_REPLACE, 0, 0, null, 0); 1648 } 1649 } 1650 } 1651 break; 1652 1653 default: 1654 break; 1655 } 1656 } 1657 public void onServiceDisconnected(int profile) { 1658 switch(profile) { 1659 case BluetoothProfile.A2DP: 1660 synchronized (mConnectedDevices) { 1661 if (mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP)) { 1662 makeA2dpDeviceUnavailableNow( 1663 mConnectedDevices.get(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP)); 1664 } 1665 } 1666 break; 1667 1668 case BluetoothProfile.HEADSET: 1669 synchronized (mScoClients) { 1670 mBluetoothHeadset = null; 1671 } 1672 break; 1673 1674 default: 1675 break; 1676 } 1677 } 1678 }; 1679 1680 /////////////////////////////////////////////////////////////////////////// 1681 // Internal methods 1682 /////////////////////////////////////////////////////////////////////////// 1683 1684 /** 1685 * Checks if the adjustment should change ringer mode instead of just 1686 * adjusting volume. If so, this will set the proper ringer mode and volume 1687 * indices on the stream states. 1688 */ 1689 private boolean checkForRingerModeChange(int oldIndex, int direction, int streamType) { 1690 boolean adjustVolumeIndex = true; 1691 int newRingerMode = mRingerMode; 1692 int uiIndex = (oldIndex + 5) / 10; 1693 boolean vibeInSilent = System.getInt(mContentResolver, System.VIBRATE_IN_SILENT, 1) == 1; 1694 1695 if (mRingerMode == RINGER_MODE_NORMAL) { 1696 if ((direction == AudioManager.ADJUST_LOWER) && (uiIndex <= 1)) { 1697 // enter silent mode if current index is the last audible one and not repeating a 1698 // volume key down 1699 if (vibeInSilent || mPrevVolDirection != AudioManager.ADJUST_LOWER) { 1700 // "silent mode", but which one? 1701 newRingerMode = vibeInSilent ? RINGER_MODE_VIBRATE : RINGER_MODE_SILENT; 1702 } 1703 if (uiIndex == 0 || 1704 (!vibeInSilent && 1705 mPrevVolDirection == AudioManager.ADJUST_LOWER && 1706 mVoiceCapable && streamType == AudioSystem.STREAM_RING)) { 1707 adjustVolumeIndex = false; 1708 } 1709 } 1710 } else if (mRingerMode == RINGER_MODE_VIBRATE) { 1711 if ((direction == AudioManager.ADJUST_LOWER)) { 1712 // Set it to silent, if it wasn't a long-press 1713 if (mPrevVolDirection != AudioManager.ADJUST_LOWER) { 1714 newRingerMode = RINGER_MODE_SILENT; 1715 } 1716 } else if (direction == AudioManager.ADJUST_RAISE) { 1717 newRingerMode = RINGER_MODE_NORMAL; 1718 } 1719 adjustVolumeIndex = false; 1720 } else { 1721 if (direction == AudioManager.ADJUST_RAISE) { 1722 // exiting silent mode 1723 // If VIBRATE_IN_SILENT, then go into vibrate mode 1724 newRingerMode = vibeInSilent ? RINGER_MODE_VIBRATE : RINGER_MODE_NORMAL; 1725 } 1726 adjustVolumeIndex = false; 1727 } 1728 1729 if (newRingerMode != mRingerMode) { 1730 setRingerMode(newRingerMode); 1731 } 1732 1733 mPrevVolDirection = direction; 1734 1735 return adjustVolumeIndex; 1736 } 1737 1738 public boolean isStreamAffectedByRingerMode(int streamType) { 1739 return (mRingerModeAffectedStreams & (1 << streamType)) != 0; 1740 } 1741 1742 private boolean isStreamMutedByRingerMode(int streamType) { 1743 return (mRingerModeMutedStreams & (1 << streamType)) != 0; 1744 } 1745 1746 public boolean isStreamAffectedByMute(int streamType) { 1747 return (mMuteAffectedStreams & (1 << streamType)) != 0; 1748 } 1749 1750 private void ensureValidDirection(int direction) { 1751 if (direction < AudioManager.ADJUST_LOWER || direction > AudioManager.ADJUST_RAISE) { 1752 throw new IllegalArgumentException("Bad direction " + direction); 1753 } 1754 } 1755 1756 private void ensureValidStreamType(int streamType) { 1757 if (streamType < 0 || streamType >= mStreamStates.length) { 1758 throw new IllegalArgumentException("Bad stream type " + streamType); 1759 } 1760 } 1761 1762 private int getActiveStreamType(int suggestedStreamType) { 1763 1764 if (mVoiceCapable) { 1765 boolean isOffhook = false; 1766 try { 1767 ITelephony phone = ITelephony.Stub.asInterface(ServiceManager.checkService("phone")); 1768 if (phone != null) isOffhook = phone.isOffhook(); 1769 } catch (RemoteException e) { 1770 Log.w(TAG, "Couldn't connect to phone service", e); 1771 } 1772 1773 if (isOffhook || getMode() == AudioManager.MODE_IN_COMMUNICATION) { 1774 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 1775 == AudioSystem.FORCE_BT_SCO) { 1776 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 1777 return AudioSystem.STREAM_BLUETOOTH_SCO; 1778 } else { 1779 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 1780 return AudioSystem.STREAM_VOICE_CALL; 1781 } 1782 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0)) { 1783 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC..."); 1784 return AudioSystem.STREAM_MUSIC; 1785 } else if (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE) { 1786 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_RING..." 1787 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 1788 return AudioSystem.STREAM_RING; 1789 } else { 1790 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 1791 return suggestedStreamType; 1792 } 1793 } else { 1794 if (getMode() == AudioManager.MODE_IN_COMMUNICATION) { 1795 if (AudioSystem.getForceUse(AudioSystem.FOR_COMMUNICATION) 1796 == AudioSystem.FORCE_BT_SCO) { 1797 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_BLUETOOTH_SCO..."); 1798 return AudioSystem.STREAM_BLUETOOTH_SCO; 1799 } else { 1800 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_VOICE_CALL..."); 1801 return AudioSystem.STREAM_VOICE_CALL; 1802 } 1803 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_NOTIFICATION, 1804 NOTIFICATION_VOLUME_DELAY_MS) || 1805 AudioSystem.isStreamActive(AudioSystem.STREAM_RING, 1806 NOTIFICATION_VOLUME_DELAY_MS)) { 1807 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_NOTIFICATION..."); 1808 return AudioSystem.STREAM_NOTIFICATION; 1809 } else if (AudioSystem.isStreamActive(AudioSystem.STREAM_MUSIC, 0) || 1810 (suggestedStreamType == AudioManager.USE_DEFAULT_STREAM_TYPE)) { 1811 // Log.v(TAG, "getActiveStreamType: Forcing STREAM_MUSIC " 1812 // + " b/c USE_DEFAULT_STREAM_TYPE..."); 1813 return AudioSystem.STREAM_MUSIC; 1814 } else { 1815 // Log.v(TAG, "getActiveStreamType: Returning suggested type " + suggestedStreamType); 1816 return suggestedStreamType; 1817 } 1818 } 1819 } 1820 1821 private void broadcastRingerMode() { 1822 // Send sticky broadcast 1823 Intent broadcast = new Intent(AudioManager.RINGER_MODE_CHANGED_ACTION); 1824 broadcast.putExtra(AudioManager.EXTRA_RINGER_MODE, mRingerMode); 1825 broadcast.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT 1826 | Intent.FLAG_RECEIVER_REPLACE_PENDING); 1827 long origCallerIdentityToken = Binder.clearCallingIdentity(); 1828 mContext.sendStickyBroadcast(broadcast); 1829 Binder.restoreCallingIdentity(origCallerIdentityToken); 1830 } 1831 1832 private void broadcastVibrateSetting(int vibrateType) { 1833 // Send broadcast 1834 if (ActivityManagerNative.isSystemReady()) { 1835 Intent broadcast = new Intent(AudioManager.VIBRATE_SETTING_CHANGED_ACTION); 1836 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_TYPE, vibrateType); 1837 broadcast.putExtra(AudioManager.EXTRA_VIBRATE_SETTING, getVibrateSetting(vibrateType)); 1838 mContext.sendBroadcast(broadcast); 1839 } 1840 } 1841 1842 // Message helper methods 1843 1844 private static void sendMsg(Handler handler, int msg, 1845 int existingMsgPolicy, int arg1, int arg2, Object obj, int delay) { 1846 1847 if (existingMsgPolicy == SENDMSG_REPLACE) { 1848 handler.removeMessages(msg); 1849 } else if (existingMsgPolicy == SENDMSG_NOOP && handler.hasMessages(msg)) { 1850 return; 1851 } 1852 1853 handler.sendMessageDelayed(handler.obtainMessage(msg, arg1, arg2, obj), delay); 1854 } 1855 1856 boolean checkAudioSettingsPermission(String method) { 1857 if (mContext.checkCallingOrSelfPermission("android.permission.MODIFY_AUDIO_SETTINGS") 1858 == PackageManager.PERMISSION_GRANTED) { 1859 return true; 1860 } 1861 String msg = "Audio Settings Permission Denial: " + method + " from pid=" 1862 + Binder.getCallingPid() 1863 + ", uid=" + Binder.getCallingUid(); 1864 Log.w(TAG, msg); 1865 return false; 1866 } 1867 1868 1869 /////////////////////////////////////////////////////////////////////////// 1870 // Inner classes 1871 /////////////////////////////////////////////////////////////////////////// 1872 1873 public class VolumeStreamState { 1874 private final int mStreamType; 1875 1876 private String mVolumeIndexSettingName; 1877 private String mLastAudibleVolumeIndexSettingName; 1878 private int mIndexMax; 1879 private int mIndex; 1880 private int mLastAudibleIndex; 1881 private ArrayList<VolumeDeathHandler> mDeathHandlers; //handles mute/solo requests client death 1882 1883 private VolumeStreamState(String settingName, int streamType) { 1884 1885 setVolumeIndexSettingName(settingName); 1886 1887 mStreamType = streamType; 1888 1889 final ContentResolver cr = mContentResolver; 1890 mIndexMax = MAX_STREAM_VOLUME[streamType]; 1891 mIndex = Settings.System.getInt(cr, 1892 mVolumeIndexSettingName, 1893 AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1894 mLastAudibleIndex = Settings.System.getInt(cr, 1895 mLastAudibleVolumeIndexSettingName, 1896 (mIndex > 0) ? mIndex : AudioManager.DEFAULT_STREAM_VOLUME[streamType]); 1897 AudioSystem.initStreamVolume(streamType, 0, mIndexMax); 1898 mIndexMax *= 10; 1899 mIndex = getValidIndex(10 * mIndex); 1900 mLastAudibleIndex = getValidIndex(10 * mLastAudibleIndex); 1901 setStreamVolumeIndex(streamType, mIndex); 1902 mDeathHandlers = new ArrayList<VolumeDeathHandler>(); 1903 } 1904 1905 public void setVolumeIndexSettingName(String settingName) { 1906 mVolumeIndexSettingName = settingName; 1907 mLastAudibleVolumeIndexSettingName = settingName + System.APPEND_FOR_LAST_AUDIBLE; 1908 } 1909 1910 public boolean adjustIndex(int deltaIndex) { 1911 return setIndex(mIndex + deltaIndex * 10, true); 1912 } 1913 1914 public boolean setIndex(int index, boolean lastAudible) { 1915 int oldIndex = mIndex; 1916 mIndex = getValidIndex(index); 1917 1918 if (oldIndex != mIndex) { 1919 if (lastAudible) { 1920 mLastAudibleIndex = mIndex; 1921 } 1922 // Apply change to all streams using this one as alias 1923 int numStreamTypes = AudioSystem.getNumStreamTypes(); 1924 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 1925 if (streamType != mStreamType && STREAM_VOLUME_ALIAS[streamType] == mStreamType) { 1926 mStreamStates[streamType].setIndex(rescaleIndex(mIndex, mStreamType, streamType), lastAudible); 1927 } 1928 } 1929 return true; 1930 } else { 1931 return false; 1932 } 1933 } 1934 1935 public void setLastAudibleIndex(int index) { 1936 mLastAudibleIndex = getValidIndex(index); 1937 } 1938 1939 public void adjustLastAudibleIndex(int deltaIndex) { 1940 setLastAudibleIndex(mLastAudibleIndex + deltaIndex * 10); 1941 } 1942 1943 public int getMaxIndex() { 1944 return mIndexMax; 1945 } 1946 1947 public void mute(IBinder cb, boolean state) { 1948 VolumeDeathHandler handler = getDeathHandler(cb, state); 1949 if (handler == null) { 1950 Log.e(TAG, "Could not get client death handler for stream: "+mStreamType); 1951 return; 1952 } 1953 handler.mute(state); 1954 } 1955 1956 private int getValidIndex(int index) { 1957 if (index < 0) { 1958 return 0; 1959 } else if (index > mIndexMax) { 1960 return mIndexMax; 1961 } 1962 1963 return index; 1964 } 1965 1966 private class VolumeDeathHandler implements IBinder.DeathRecipient { 1967 private IBinder mICallback; // To be notified of client's death 1968 private int mMuteCount; // Number of active mutes for this client 1969 1970 VolumeDeathHandler(IBinder cb) { 1971 mICallback = cb; 1972 } 1973 1974 public void mute(boolean state) { 1975 synchronized(mDeathHandlers) { 1976 if (state) { 1977 if (mMuteCount == 0) { 1978 // Register for client death notification 1979 try { 1980 // mICallback can be 0 if muted by AudioService 1981 if (mICallback != null) { 1982 mICallback.linkToDeath(this, 0); 1983 } 1984 mDeathHandlers.add(this); 1985 // If the stream is not yet muted by any client, set lvel to 0 1986 if (muteCount() == 0) { 1987 setIndex(0, false); 1988 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, SENDMSG_NOOP, 0, 0, 1989 VolumeStreamState.this, 0); 1990 } 1991 } catch (RemoteException e) { 1992 // Client has died! 1993 binderDied(); 1994 mDeathHandlers.notify(); 1995 return; 1996 } 1997 } else { 1998 Log.w(TAG, "stream: "+mStreamType+" was already muted by this client"); 1999 } 2000 mMuteCount++; 2001 } else { 2002 if (mMuteCount == 0) { 2003 Log.e(TAG, "unexpected unmute for stream: "+mStreamType); 2004 } else { 2005 mMuteCount--; 2006 if (mMuteCount == 0) { 2007 // Unregistr from client death notification 2008 mDeathHandlers.remove(this); 2009 // mICallback can be 0 if muted by AudioService 2010 if (mICallback != null) { 2011 mICallback.unlinkToDeath(this, 0); 2012 } 2013 if (muteCount() == 0) { 2014 // If the stream is not muted any more, restore it's volume if 2015 // ringer mode allows it 2016 if (!isStreamAffectedByRingerMode(mStreamType) || mRingerMode == AudioManager.RINGER_MODE_NORMAL) { 2017 setIndex(mLastAudibleIndex, false); 2018 sendMsg(mAudioHandler, MSG_SET_SYSTEM_VOLUME, SENDMSG_NOOP, 0, 0, 2019 VolumeStreamState.this, 0); 2020 } 2021 } 2022 } 2023 } 2024 } 2025 mDeathHandlers.notify(); 2026 } 2027 } 2028 2029 public void binderDied() { 2030 Log.w(TAG, "Volume service client died for stream: "+mStreamType); 2031 if (mMuteCount != 0) { 2032 // Reset all active mute requests from this client. 2033 mMuteCount = 1; 2034 mute(false); 2035 } 2036 } 2037 } 2038 2039 private int muteCount() { 2040 int count = 0; 2041 int size = mDeathHandlers.size(); 2042 for (int i = 0; i < size; i++) { 2043 count += mDeathHandlers.get(i).mMuteCount; 2044 } 2045 return count; 2046 } 2047 2048 private VolumeDeathHandler getDeathHandler(IBinder cb, boolean state) { 2049 synchronized(mDeathHandlers) { 2050 VolumeDeathHandler handler; 2051 int size = mDeathHandlers.size(); 2052 for (int i = 0; i < size; i++) { 2053 handler = mDeathHandlers.get(i); 2054 if (cb == handler.mICallback) { 2055 return handler; 2056 } 2057 } 2058 // If this is the first mute request for this client, create a new 2059 // client death handler. Otherwise, it is an out of sequence unmute request. 2060 if (state) { 2061 handler = new VolumeDeathHandler(cb); 2062 } else { 2063 Log.w(TAG, "stream was not muted by this client"); 2064 handler = null; 2065 } 2066 return handler; 2067 } 2068 } 2069 } 2070 2071 /** Thread that handles native AudioSystem control. */ 2072 private class AudioSystemThread extends Thread { 2073 AudioSystemThread() { 2074 super("AudioService"); 2075 } 2076 2077 @Override 2078 public void run() { 2079 // Set this thread up so the handler will work on it 2080 Looper.prepare(); 2081 2082 synchronized(AudioService.this) { 2083 mAudioHandler = new AudioHandler(); 2084 2085 // Notify that the handler has been created 2086 AudioService.this.notify(); 2087 } 2088 2089 // Listen for volume change requests that are set by VolumePanel 2090 Looper.loop(); 2091 } 2092 } 2093 2094 /** Handles internal volume messages in separate volume thread. */ 2095 private class AudioHandler extends Handler { 2096 2097 private void setSystemVolume(VolumeStreamState streamState) { 2098 2099 // Adjust volume 2100 setStreamVolumeIndex(streamState.mStreamType, streamState.mIndex); 2101 2102 // Apply change to all streams using this one as alias 2103 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2104 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2105 if (streamType != streamState.mStreamType && 2106 STREAM_VOLUME_ALIAS[streamType] == streamState.mStreamType) { 2107 setStreamVolumeIndex(streamType, mStreamStates[streamType].mIndex); 2108 } 2109 } 2110 2111 // Post a persist volume msg 2112 sendMsg(mAudioHandler, 2113 MSG_PERSIST_VOLUME, 2114 SENDMSG_REPLACE, 2115 PERSIST_CURRENT|PERSIST_LAST_AUDIBLE, 2116 0, 2117 streamState, 2118 PERSIST_DELAY); 2119 2120 } 2121 2122 private void persistVolume(VolumeStreamState streamState, 2123 int persistType) { 2124 if ((persistType & PERSIST_CURRENT) != 0) { 2125 System.putInt(mContentResolver, streamState.mVolumeIndexSettingName, 2126 (streamState.mIndex + 5)/ 10); 2127 } 2128 if ((persistType & PERSIST_LAST_AUDIBLE) != 0) { 2129 System.putInt(mContentResolver, streamState.mLastAudibleVolumeIndexSettingName, 2130 (streamState.mLastAudibleIndex + 5) / 10); 2131 } 2132 } 2133 2134 private void persistRingerMode() { 2135 System.putInt(mContentResolver, System.MODE_RINGER, mRingerMode); 2136 } 2137 2138 private void persistVibrateSetting() { 2139 System.putInt(mContentResolver, System.VIBRATE_ON, mVibrateSetting); 2140 } 2141 2142 private void playSoundEffect(int effectType, int volume) { 2143 synchronized (mSoundEffectsLock) { 2144 if (mSoundPool == null) { 2145 return; 2146 } 2147 float volFloat; 2148 // use default if volume is not specified by caller 2149 if (volume < 0) { 2150 volFloat = (float)Math.pow(10, SOUND_EFFECT_VOLUME_DB/20); 2151 } else { 2152 volFloat = (float) volume / 1000.0f; 2153 } 2154 2155 if (SOUND_EFFECT_FILES_MAP[effectType][1] > 0) { 2156 mSoundPool.play(SOUND_EFFECT_FILES_MAP[effectType][1], volFloat, volFloat, 0, 0, 1.0f); 2157 } else { 2158 MediaPlayer mediaPlayer = new MediaPlayer(); 2159 try { 2160 String filePath = Environment.getRootDirectory() + SOUND_EFFECTS_PATH + SOUND_EFFECT_FILES[SOUND_EFFECT_FILES_MAP[effectType][0]]; 2161 mediaPlayer.setDataSource(filePath); 2162 mediaPlayer.setAudioStreamType(AudioSystem.STREAM_SYSTEM); 2163 mediaPlayer.prepare(); 2164 mediaPlayer.setVolume(volFloat, volFloat); 2165 mediaPlayer.setOnCompletionListener(new OnCompletionListener() { 2166 public void onCompletion(MediaPlayer mp) { 2167 cleanupPlayer(mp); 2168 } 2169 }); 2170 mediaPlayer.setOnErrorListener(new OnErrorListener() { 2171 public boolean onError(MediaPlayer mp, int what, int extra) { 2172 cleanupPlayer(mp); 2173 return true; 2174 } 2175 }); 2176 mediaPlayer.start(); 2177 } catch (IOException ex) { 2178 Log.w(TAG, "MediaPlayer IOException: "+ex); 2179 } catch (IllegalArgumentException ex) { 2180 Log.w(TAG, "MediaPlayer IllegalArgumentException: "+ex); 2181 } catch (IllegalStateException ex) { 2182 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2183 } 2184 } 2185 } 2186 } 2187 2188 private void onHandlePersistMediaButtonReceiver(ComponentName receiver) { 2189 Settings.System.putString(mContentResolver, Settings.System.MEDIA_BUTTON_RECEIVER, 2190 receiver == null ? "" : receiver.flattenToString()); 2191 } 2192 2193 private void cleanupPlayer(MediaPlayer mp) { 2194 if (mp != null) { 2195 try { 2196 mp.stop(); 2197 mp.release(); 2198 } catch (IllegalStateException ex) { 2199 Log.w(TAG, "MediaPlayer IllegalStateException: "+ex); 2200 } 2201 } 2202 } 2203 2204 private void setForceUse(int usage, int config) { 2205 AudioSystem.setForceUse(usage, config); 2206 } 2207 2208 @Override 2209 public void handleMessage(Message msg) { 2210 2211 switch (msg.what) { 2212 2213 case MSG_SET_SYSTEM_VOLUME: 2214 setSystemVolume((VolumeStreamState) msg.obj); 2215 break; 2216 2217 case MSG_PERSIST_VOLUME: 2218 persistVolume((VolumeStreamState) msg.obj, msg.arg1); 2219 break; 2220 2221 case MSG_PERSIST_RINGER_MODE: 2222 persistRingerMode(); 2223 break; 2224 2225 case MSG_PERSIST_VIBRATE_SETTING: 2226 persistVibrateSetting(); 2227 break; 2228 2229 case MSG_MEDIA_SERVER_DIED: 2230 if (!mMediaServerOk) { 2231 Log.e(TAG, "Media server died."); 2232 // Force creation of new IAudioFlinger interface so that we are notified 2233 // when new media_server process is back to life. 2234 AudioSystem.setErrorCallback(mAudioSystemCallback); 2235 sendMsg(mAudioHandler, MSG_MEDIA_SERVER_DIED, SENDMSG_NOOP, 0, 0, 2236 null, 500); 2237 } 2238 break; 2239 2240 case MSG_MEDIA_SERVER_STARTED: 2241 Log.e(TAG, "Media server started."); 2242 // indicate to audio HAL that we start the reconfiguration phase after a media 2243 // server crash 2244 // Note that MSG_MEDIA_SERVER_STARTED message is only received when the media server 2245 // process restarts after a crash, not the first time it is started. 2246 AudioSystem.setParameters("restarting=true"); 2247 2248 // Restore device connection states 2249 synchronized (mConnectedDevices) { 2250 Set set = mConnectedDevices.entrySet(); 2251 Iterator i = set.iterator(); 2252 while(i.hasNext()){ 2253 Map.Entry device = (Map.Entry)i.next(); 2254 AudioSystem.setDeviceConnectionState( 2255 ((Integer)device.getKey()).intValue(), 2256 AudioSystem.DEVICE_STATE_AVAILABLE, 2257 (String)device.getValue()); 2258 } 2259 } 2260 // Restore call state 2261 AudioSystem.setPhoneState(mMode); 2262 2263 // Restore forced usage for communcations and record 2264 AudioSystem.setForceUse(AudioSystem.FOR_COMMUNICATION, mForcedUseForComm); 2265 AudioSystem.setForceUse(AudioSystem.FOR_RECORD, mForcedUseForComm); 2266 2267 // Restore stream volumes 2268 int numStreamTypes = AudioSystem.getNumStreamTypes(); 2269 for (int streamType = numStreamTypes - 1; streamType >= 0; streamType--) { 2270 int index; 2271 VolumeStreamState streamState = mStreamStates[streamType]; 2272 AudioSystem.initStreamVolume(streamType, 0, (streamState.mIndexMax + 5) / 10); 2273 if (streamState.muteCount() == 0) { 2274 index = streamState.mIndex; 2275 } else { 2276 index = 0; 2277 } 2278 setStreamVolumeIndex(streamType, index); 2279 } 2280 2281 // Restore ringer mode 2282 setRingerModeInt(getRingerMode(), false); 2283 2284 // indicate the end of reconfiguration phase to audio HAL 2285 AudioSystem.setParameters("restarting=false"); 2286 break; 2287 2288 case MSG_LOAD_SOUND_EFFECTS: 2289 loadSoundEffects(); 2290 break; 2291 2292 case MSG_PLAY_SOUND_EFFECT: 2293 playSoundEffect(msg.arg1, msg.arg2); 2294 break; 2295 2296 case MSG_BTA2DP_DOCK_TIMEOUT: 2297 // msg.obj == address of BTA2DP device 2298 synchronized (mConnectedDevices) { 2299 makeA2dpDeviceUnavailableNow( (String) msg.obj ); 2300 } 2301 break; 2302 2303 case MSG_SET_FORCE_USE: 2304 setForceUse(msg.arg1, msg.arg2); 2305 break; 2306 2307 case MSG_PERSIST_MEDIABUTTONRECEIVER: 2308 onHandlePersistMediaButtonReceiver( (ComponentName) msg.obj ); 2309 break; 2310 2311 case MSG_RCDISPLAY_CLEAR: 2312 onRcDisplayClear(); 2313 break; 2314 2315 case MSG_RCDISPLAY_UPDATE: 2316 // msg.obj is guaranteed to be non null 2317 onRcDisplayUpdate( (RemoteControlStackEntry) msg.obj, msg.arg1); 2318 break; 2319 2320 case MSG_BT_HEADSET_CNCT_FAILED: 2321 resetBluetoothSco(); 2322 break; 2323 } 2324 } 2325 } 2326 2327 private class SettingsObserver extends ContentObserver { 2328 2329 SettingsObserver() { 2330 super(new Handler()); 2331 mContentResolver.registerContentObserver(Settings.System.getUriFor( 2332 Settings.System.MODE_RINGER_STREAMS_AFFECTED), false, this); 2333 } 2334 2335 @Override 2336 public void onChange(boolean selfChange) { 2337 super.onChange(selfChange); 2338 synchronized (mSettingsLock) { 2339 int ringerModeAffectedStreams = Settings.System.getInt(mContentResolver, 2340 Settings.System.MODE_RINGER_STREAMS_AFFECTED, 2341 ((1 << AudioSystem.STREAM_RING)|(1 << AudioSystem.STREAM_NOTIFICATION)| 2342 (1 << AudioSystem.STREAM_SYSTEM)|(1 << AudioSystem.STREAM_SYSTEM_ENFORCED))); 2343 if (mVoiceCapable) { 2344 ringerModeAffectedStreams &= ~(1 << AudioSystem.STREAM_MUSIC); 2345 } else { 2346 ringerModeAffectedStreams |= (1 << AudioSystem.STREAM_MUSIC); 2347 } 2348 if (ringerModeAffectedStreams != mRingerModeAffectedStreams) { 2349 /* 2350 * Ensure all stream types that should be affected by ringer mode 2351 * are in the proper state. 2352 */ 2353 mRingerModeAffectedStreams = ringerModeAffectedStreams; 2354 setRingerModeInt(getRingerMode(), false); 2355 } 2356 } 2357 } 2358 } 2359 2360 // must be called synchronized on mConnectedDevices 2361 private void makeA2dpDeviceAvailable(String address) { 2362 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2363 AudioSystem.DEVICE_STATE_AVAILABLE, 2364 address); 2365 // Reset A2DP suspend state each time a new sink is connected 2366 AudioSystem.setParameters("A2dpSuspended=false"); 2367 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP), 2368 address); 2369 } 2370 2371 // must be called synchronized on mConnectedDevices 2372 private void makeA2dpDeviceUnavailableNow(String address) { 2373 Intent noisyIntent = new Intent(AudioManager.ACTION_AUDIO_BECOMING_NOISY); 2374 mContext.sendBroadcast(noisyIntent); 2375 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP, 2376 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2377 address); 2378 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 2379 } 2380 2381 // must be called synchronized on mConnectedDevices 2382 private void makeA2dpDeviceUnavailableLater(String address) { 2383 // prevent any activity on the A2DP audio output to avoid unwanted 2384 // reconnection of the sink. 2385 AudioSystem.setParameters("A2dpSuspended=true"); 2386 // the device will be made unavailable later, so consider it disconnected right away 2387 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP); 2388 // send the delayed message to make the device unavailable later 2389 Message msg = mAudioHandler.obtainMessage(MSG_BTA2DP_DOCK_TIMEOUT, address); 2390 mAudioHandler.sendMessageDelayed(msg, BTA2DP_DOCK_TIMEOUT_MILLIS); 2391 2392 } 2393 2394 // must be called synchronized on mConnectedDevices 2395 private void cancelA2dpDeviceTimeout() { 2396 mAudioHandler.removeMessages(MSG_BTA2DP_DOCK_TIMEOUT); 2397 } 2398 2399 // must be called synchronized on mConnectedDevices 2400 private boolean hasScheduledA2dpDockTimeout() { 2401 return mAudioHandler.hasMessages(MSG_BTA2DP_DOCK_TIMEOUT); 2402 } 2403 2404 private void handleA2dpConnectionStateChange(BluetoothDevice btDevice, int state) 2405 { 2406 if (btDevice == null) { 2407 return; 2408 } 2409 String address = btDevice.getAddress(); 2410 if (!BluetoothAdapter.checkBluetoothAddress(address)) { 2411 address = ""; 2412 } 2413 synchronized (mConnectedDevices) { 2414 boolean isConnected = 2415 (mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP) && 2416 mConnectedDevices.get(AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP).equals(address)); 2417 2418 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 2419 if (btDevice.isBluetoothDock()) { 2420 if (state == BluetoothProfile.STATE_DISCONNECTED) { 2421 // introduction of a delay for transient disconnections of docks when 2422 // power is rapidly turned off/on, this message will be canceled if 2423 // we reconnect the dock under a preset delay 2424 makeA2dpDeviceUnavailableLater(address); 2425 // the next time isConnected is evaluated, it will be false for the dock 2426 } 2427 } else { 2428 makeA2dpDeviceUnavailableNow(address); 2429 } 2430 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 2431 if (btDevice.isBluetoothDock()) { 2432 // this could be a reconnection after a transient disconnection 2433 cancelA2dpDeviceTimeout(); 2434 mDockAddress = address; 2435 } else { 2436 // this could be a connection of another A2DP device before the timeout of 2437 // a dock: cancel the dock timeout, and make the dock unavailable now 2438 if(hasScheduledA2dpDockTimeout()) { 2439 cancelA2dpDeviceTimeout(); 2440 makeA2dpDeviceUnavailableNow(mDockAddress); 2441 } 2442 } 2443 makeA2dpDeviceAvailable(address); 2444 } 2445 } 2446 } 2447 2448 /* cache of the address of the last dock the device was connected to */ 2449 private String mDockAddress; 2450 2451 /** 2452 * Receiver for misc intent broadcasts the Phone app cares about. 2453 */ 2454 private class AudioServiceBroadcastReceiver extends BroadcastReceiver { 2455 @Override 2456 public void onReceive(Context context, Intent intent) { 2457 String action = intent.getAction(); 2458 2459 if (action.equals(Intent.ACTION_DOCK_EVENT)) { 2460 int dockState = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 2461 Intent.EXTRA_DOCK_STATE_UNDOCKED); 2462 int config; 2463 switch (dockState) { 2464 case Intent.EXTRA_DOCK_STATE_DESK: 2465 config = AudioSystem.FORCE_BT_DESK_DOCK; 2466 break; 2467 case Intent.EXTRA_DOCK_STATE_CAR: 2468 config = AudioSystem.FORCE_BT_CAR_DOCK; 2469 break; 2470 case Intent.EXTRA_DOCK_STATE_LE_DESK: 2471 config = AudioSystem.FORCE_ANALOG_DOCK; 2472 break; 2473 case Intent.EXTRA_DOCK_STATE_HE_DESK: 2474 config = AudioSystem.FORCE_DIGITAL_DOCK; 2475 break; 2476 case Intent.EXTRA_DOCK_STATE_UNDOCKED: 2477 default: 2478 config = AudioSystem.FORCE_NONE; 2479 } 2480 AudioSystem.setForceUse(AudioSystem.FOR_DOCK, config); 2481 } else if (action.equals(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED)) { 2482 int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 2483 BluetoothProfile.STATE_DISCONNECTED); 2484 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 2485 2486 handleA2dpConnectionStateChange(btDevice, state); 2487 } else if (action.equals(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED)) { 2488 int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, 2489 BluetoothProfile.STATE_DISCONNECTED); 2490 int device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO; 2491 String address = null; 2492 2493 BluetoothDevice btDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE); 2494 if (btDevice == null) { 2495 return; 2496 } 2497 2498 address = btDevice.getAddress(); 2499 BluetoothClass btClass = btDevice.getBluetoothClass(); 2500 if (btClass != null) { 2501 switch (btClass.getDeviceClass()) { 2502 case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET: 2503 case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE: 2504 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET; 2505 break; 2506 case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO: 2507 device = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT; 2508 break; 2509 } 2510 } 2511 2512 if (!BluetoothAdapter.checkBluetoothAddress(address)) { 2513 address = ""; 2514 } 2515 2516 synchronized (mConnectedDevices) { 2517 boolean isConnected = (mConnectedDevices.containsKey(device) && 2518 mConnectedDevices.get(device).equals(address)); 2519 2520 synchronized (mScoClients) { 2521 if (isConnected && state != BluetoothProfile.STATE_CONNECTED) { 2522 AudioSystem.setDeviceConnectionState(device, 2523 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2524 address); 2525 mConnectedDevices.remove(device); 2526 mBluetoothHeadsetDevice = null; 2527 resetBluetoothSco(); 2528 } else if (!isConnected && state == BluetoothProfile.STATE_CONNECTED) { 2529 AudioSystem.setDeviceConnectionState(device, 2530 AudioSystem.DEVICE_STATE_AVAILABLE, 2531 address); 2532 mConnectedDevices.put(new Integer(device), address); 2533 mBluetoothHeadsetDevice = btDevice; 2534 } 2535 } 2536 } 2537 } else if (action.equals(Intent.ACTION_HEADSET_PLUG)) { 2538 int state = intent.getIntExtra("state", 0); 2539 int microphone = intent.getIntExtra("microphone", 0); 2540 2541 synchronized (mConnectedDevices) { 2542 if (microphone != 0) { 2543 boolean isConnected = 2544 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_WIRED_HEADSET); 2545 if (state == 0 && isConnected) { 2546 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADSET, 2547 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2548 ""); 2549 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_WIRED_HEADSET); 2550 } else if (state == 1 && !isConnected) { 2551 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_WIRED_HEADSET, 2552 AudioSystem.DEVICE_STATE_AVAILABLE, 2553 ""); 2554 mConnectedDevices.put( 2555 new Integer(AudioSystem.DEVICE_OUT_WIRED_HEADSET), ""); 2556 } 2557 } else { 2558 boolean isConnected = 2559 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE); 2560 if (state == 0 && isConnected) { 2561 AudioSystem.setDeviceConnectionState( 2562 AudioSystem.DEVICE_OUT_WIRED_HEADPHONE, 2563 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2564 ""); 2565 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE); 2566 } else if (state == 1 && !isConnected) { 2567 AudioSystem.setDeviceConnectionState( 2568 AudioSystem.DEVICE_OUT_WIRED_HEADPHONE, 2569 AudioSystem.DEVICE_STATE_AVAILABLE, 2570 ""); 2571 mConnectedDevices.put( 2572 new Integer(AudioSystem.DEVICE_OUT_WIRED_HEADPHONE), ""); 2573 } 2574 } 2575 } 2576 } else if (action.equals(Intent.ACTION_USB_ANLG_HEADSET_PLUG)) { 2577 int state = intent.getIntExtra("state", 0); 2578 Log.v(TAG, "Broadcast Receiver: Got ACTION_USB_ANLG_HEADSET_PLUG, state = "+state); 2579 synchronized (mConnectedDevices) { 2580 boolean isConnected = 2581 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET); 2582 if (state == 0 && isConnected) { 2583 AudioSystem.setDeviceConnectionState( 2584 AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET, 2585 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2586 ""); 2587 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET); 2588 } else if (state == 1 && !isConnected) { 2589 AudioSystem.setDeviceConnectionState( 2590 AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET, 2591 AudioSystem.DEVICE_STATE_AVAILABLE, 2592 ""); 2593 mConnectedDevices.put( 2594 new Integer(AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET), ""); 2595 } 2596 } 2597 } else if (action.equals(Intent.ACTION_HDMI_AUDIO_PLUG)) { 2598 int state = intent.getIntExtra("state", 0); 2599 Log.v(TAG, "Broadcast Receiver: Got ACTION_HDMI_AUDIO_PLUG, state = "+state); 2600 synchronized (mConnectedDevices) { 2601 boolean isConnected = 2602 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_AUX_DIGITAL); 2603 if (state == 0 && isConnected) { 2604 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_AUX_DIGITAL, 2605 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2606 ""); 2607 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_AUX_DIGITAL); 2608 } else if (state == 1 && !isConnected) { 2609 AudioSystem.setDeviceConnectionState(AudioSystem.DEVICE_OUT_AUX_DIGITAL, 2610 AudioSystem.DEVICE_STATE_AVAILABLE, 2611 ""); 2612 mConnectedDevices.put( new Integer(AudioSystem.DEVICE_OUT_AUX_DIGITAL), ""); 2613 } 2614 } 2615 } else if (action.equals(Intent.ACTION_USB_DGTL_HEADSET_PLUG)) { 2616 int state = intent.getIntExtra("state", 0); 2617 Log.v(TAG, "Broadcast Receiver: Got ACTION_USB_DGTL_HEADSET_PLUG, state = "+state); 2618 synchronized (mConnectedDevices) { 2619 boolean isConnected = 2620 mConnectedDevices.containsKey(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET); 2621 if (state == 0 && isConnected) { 2622 AudioSystem.setDeviceConnectionState( 2623 AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET, 2624 AudioSystem.DEVICE_STATE_UNAVAILABLE, 2625 ""); 2626 mConnectedDevices.remove(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET); 2627 } else if (state == 1 && !isConnected) { 2628 AudioSystem.setDeviceConnectionState( 2629 AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET, 2630 AudioSystem.DEVICE_STATE_AVAILABLE, 2631 ""); 2632 mConnectedDevices.put( 2633 new Integer(AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET), ""); 2634 } 2635 } 2636 } else if (action.equals(BluetoothHeadset.ACTION_AUDIO_STATE_CHANGED)) { 2637 boolean broadcast = false; 2638 int state = AudioManager.SCO_AUDIO_STATE_ERROR; 2639 synchronized (mScoClients) { 2640 int btState = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1); 2641 // broadcast intent if the connection was initated by AudioService 2642 if (!mScoClients.isEmpty() && 2643 (mScoAudioState == SCO_STATE_ACTIVE_INTERNAL || 2644 mScoAudioState == SCO_STATE_ACTIVATE_REQ || 2645 mScoAudioState == SCO_STATE_DEACTIVATE_REQ)) { 2646 broadcast = true; 2647 } 2648 switch (btState) { 2649 case BluetoothHeadset.STATE_AUDIO_CONNECTED: 2650 state = AudioManager.SCO_AUDIO_STATE_CONNECTED; 2651 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 2652 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 2653 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 2654 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 2655 } 2656 break; 2657 case BluetoothHeadset.STATE_AUDIO_DISCONNECTED: 2658 state = AudioManager.SCO_AUDIO_STATE_DISCONNECTED; 2659 mScoAudioState = SCO_STATE_INACTIVE; 2660 clearAllScoClients(0, false); 2661 break; 2662 case BluetoothHeadset.STATE_AUDIO_CONNECTING: 2663 if (mScoAudioState != SCO_STATE_ACTIVE_INTERNAL && 2664 mScoAudioState != SCO_STATE_DEACTIVATE_REQ && 2665 mScoAudioState != SCO_STATE_DEACTIVATE_EXT_REQ) { 2666 mScoAudioState = SCO_STATE_ACTIVE_EXTERNAL; 2667 } 2668 default: 2669 // do not broadcast CONNECTING or invalid state 2670 broadcast = false; 2671 break; 2672 } 2673 } 2674 if (broadcast) { 2675 broadcastScoConnectionState(state); 2676 //FIXME: this is to maintain compatibility with deprecated intent 2677 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 2678 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 2679 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, state); 2680 mContext.sendStickyBroadcast(newIntent); 2681 } 2682 } else if (action.equals(Intent.ACTION_BOOT_COMPLETED)) { 2683 mBootCompleted = true; 2684 sendMsg(mAudioHandler, MSG_LOAD_SOUND_EFFECTS, SENDMSG_NOOP, 2685 0, 0, null, 0); 2686 2687 mKeyguardManager = 2688 (KeyguardManager) mContext.getSystemService(Context.KEYGUARD_SERVICE); 2689 mScoConnectionState = AudioManager.SCO_AUDIO_STATE_ERROR; 2690 resetBluetoothSco(); 2691 getBluetoothHeadset(); 2692 //FIXME: this is to maintain compatibility with deprecated intent 2693 // AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED. Remove when appropriate. 2694 Intent newIntent = new Intent(AudioManager.ACTION_SCO_AUDIO_STATE_CHANGED); 2695 newIntent.putExtra(AudioManager.EXTRA_SCO_AUDIO_STATE, 2696 AudioManager.SCO_AUDIO_STATE_DISCONNECTED); 2697 mContext.sendStickyBroadcast(newIntent); 2698 2699 BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); 2700 if (adapter != null) { 2701 adapter.getProfileProxy(mContext, mBluetoothProfileServiceListener, 2702 BluetoothProfile.A2DP); 2703 } 2704 } else if (action.equals(Intent.ACTION_PACKAGE_REMOVED)) { 2705 if (!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) { 2706 // a package is being removed, not replaced 2707 String packageName = intent.getData().getSchemeSpecificPart(); 2708 if (packageName != null) { 2709 removeMediaButtonReceiverForPackage(packageName); 2710 } 2711 } 2712 } else if (action.equals(Intent.ACTION_SCREEN_ON)) { 2713 AudioSystem.setParameters("screen_state=on"); 2714 } else if (action.equals(Intent.ACTION_SCREEN_OFF)) { 2715 AudioSystem.setParameters("screen_state=off"); 2716 } 2717 } 2718 } 2719 2720 //========================================================================================== 2721 // AudioFocus 2722 //========================================================================================== 2723 2724 /* constant to identify focus stack entry that is used to hold the focus while the phone 2725 * is ringing or during a call 2726 */ 2727 private final static String IN_VOICE_COMM_FOCUS_ID = "AudioFocus_For_Phone_Ring_And_Calls"; 2728 2729 private final static Object mAudioFocusLock = new Object(); 2730 2731 private final static Object mRingingLock = new Object(); 2732 2733 private PhoneStateListener mPhoneStateListener = new PhoneStateListener() { 2734 @Override 2735 public void onCallStateChanged(int state, String incomingNumber) { 2736 if (state == TelephonyManager.CALL_STATE_RINGING) { 2737 //Log.v(TAG, " CALL_STATE_RINGING"); 2738 synchronized(mRingingLock) { 2739 mIsRinging = true; 2740 } 2741 } else if ((state == TelephonyManager.CALL_STATE_OFFHOOK) 2742 || (state == TelephonyManager.CALL_STATE_IDLE)) { 2743 synchronized(mRingingLock) { 2744 mIsRinging = false; 2745 } 2746 } 2747 } 2748 }; 2749 2750 private void notifyTopOfAudioFocusStack() { 2751 // notify the top of the stack it gained focus 2752 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 2753 if (canReassignAudioFocus()) { 2754 try { 2755 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 2756 AudioManager.AUDIOFOCUS_GAIN, mFocusStack.peek().mClientId); 2757 } catch (RemoteException e) { 2758 Log.e(TAG, "Failure to signal gain of audio control focus due to "+ e); 2759 e.printStackTrace(); 2760 } 2761 } 2762 } 2763 } 2764 2765 private static class FocusStackEntry { 2766 public int mStreamType = -1;// no stream type 2767 public IAudioFocusDispatcher mFocusDispatcher = null; 2768 public IBinder mSourceRef = null; 2769 public String mClientId; 2770 public int mFocusChangeType; 2771 public AudioFocusDeathHandler mHandler; 2772 public String mPackageName; 2773 public int mCallingUid; 2774 2775 public FocusStackEntry() { 2776 } 2777 2778 public FocusStackEntry(int streamType, int duration, 2779 IAudioFocusDispatcher afl, IBinder source, String id, AudioFocusDeathHandler hdlr, 2780 String pn, int uid) { 2781 mStreamType = streamType; 2782 mFocusDispatcher = afl; 2783 mSourceRef = source; 2784 mClientId = id; 2785 mFocusChangeType = duration; 2786 mHandler = hdlr; 2787 mPackageName = pn; 2788 mCallingUid = uid; 2789 } 2790 2791 public void unlinkToDeath() { 2792 try { 2793 if (mSourceRef != null && mHandler != null) { 2794 mSourceRef.unlinkToDeath(mHandler, 0); 2795 mHandler = null; 2796 } 2797 } catch (java.util.NoSuchElementException e) { 2798 Log.e(TAG, "Encountered " + e + " in FocusStackEntry.unlinkToDeath()"); 2799 } 2800 } 2801 2802 @Override 2803 protected void finalize() throws Throwable { 2804 unlinkToDeath(); // unlink exception handled inside method 2805 super.finalize(); 2806 } 2807 } 2808 2809 private Stack<FocusStackEntry> mFocusStack = new Stack<FocusStackEntry>(); 2810 2811 /** 2812 * Helper function: 2813 * Display in the log the current entries in the audio focus stack 2814 */ 2815 private void dumpFocusStack(PrintWriter pw) { 2816 pw.println("\nAudio Focus stack entries:"); 2817 synchronized(mAudioFocusLock) { 2818 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2819 while(stackIterator.hasNext()) { 2820 FocusStackEntry fse = stackIterator.next(); 2821 pw.println(" source:" + fse.mSourceRef + " -- client: " + fse.mClientId 2822 + " -- duration: " + fse.mFocusChangeType 2823 + " -- uid: " + fse.mCallingUid); 2824 } 2825 } 2826 } 2827 2828 /** 2829 * Helper function: 2830 * Called synchronized on mAudioFocusLock 2831 * Remove a focus listener from the focus stack. 2832 * @param focusListenerToRemove the focus listener 2833 * @param signal if true and the listener was at the top of the focus stack, i.e. it was holding 2834 * focus, notify the next item in the stack it gained focus. 2835 */ 2836 private void removeFocusStackEntry(String clientToRemove, boolean signal) { 2837 // is the current top of the focus stack abandoning focus? (because of request, not death) 2838 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientToRemove)) 2839 { 2840 //Log.i(TAG, " removeFocusStackEntry() removing top of stack"); 2841 FocusStackEntry fse = mFocusStack.pop(); 2842 fse.unlinkToDeath(); 2843 if (signal) { 2844 // notify the new top of the stack it gained focus 2845 notifyTopOfAudioFocusStack(); 2846 // there's a new top of the stack, let the remote control know 2847 synchronized(mRCStack) { 2848 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 2849 } 2850 } 2851 } else { 2852 // focus is abandoned by a client that's not at the top of the stack, 2853 // no need to update focus. 2854 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2855 while(stackIterator.hasNext()) { 2856 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 2857 if(fse.mClientId.equals(clientToRemove)) { 2858 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 2859 + fse.mClientId); 2860 stackIterator.remove(); 2861 fse.unlinkToDeath(); 2862 } 2863 } 2864 } 2865 } 2866 2867 /** 2868 * Helper function: 2869 * Called synchronized on mAudioFocusLock 2870 * Remove focus listeners from the focus stack for a particular client when it has died. 2871 */ 2872 private void removeFocusStackEntryForClient(IBinder cb) { 2873 // is the owner of the audio focus part of the client to remove? 2874 boolean isTopOfStackForClientToRemove = !mFocusStack.isEmpty() && 2875 mFocusStack.peek().mSourceRef.equals(cb); 2876 Iterator<FocusStackEntry> stackIterator = mFocusStack.iterator(); 2877 while(stackIterator.hasNext()) { 2878 FocusStackEntry fse = (FocusStackEntry)stackIterator.next(); 2879 if(fse.mSourceRef.equals(cb)) { 2880 Log.i(TAG, " AudioFocus abandonAudioFocus(): removing entry for " 2881 + fse.mClientId); 2882 stackIterator.remove(); 2883 // the client just died, no need to unlink to its death 2884 } 2885 } 2886 if (isTopOfStackForClientToRemove) { 2887 // we removed an entry at the top of the stack: 2888 // notify the new top of the stack it gained focus. 2889 notifyTopOfAudioFocusStack(); 2890 // there's a new top of the stack, let the remote control know 2891 synchronized(mRCStack) { 2892 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 2893 } 2894 } 2895 } 2896 2897 /** 2898 * Helper function: 2899 * Returns true if the system is in a state where the focus can be reevaluated, false otherwise. 2900 */ 2901 private boolean canReassignAudioFocus() { 2902 // focus requests are rejected during a phone call or when the phone is ringing 2903 // this is equivalent to IN_VOICE_COMM_FOCUS_ID having the focus 2904 if (!mFocusStack.isEmpty() && IN_VOICE_COMM_FOCUS_ID.equals(mFocusStack.peek().mClientId)) { 2905 return false; 2906 } 2907 return true; 2908 } 2909 2910 /** 2911 * Inner class to monitor audio focus client deaths, and remove them from the audio focus 2912 * stack if necessary. 2913 */ 2914 private class AudioFocusDeathHandler implements IBinder.DeathRecipient { 2915 private IBinder mCb; // To be notified of client's death 2916 2917 AudioFocusDeathHandler(IBinder cb) { 2918 mCb = cb; 2919 } 2920 2921 public void binderDied() { 2922 synchronized(mAudioFocusLock) { 2923 Log.w(TAG, " AudioFocus audio focus client died"); 2924 removeFocusStackEntryForClient(mCb); 2925 } 2926 } 2927 2928 public IBinder getBinder() { 2929 return mCb; 2930 } 2931 } 2932 2933 2934 /** @see AudioManager#requestAudioFocus(IAudioFocusDispatcher, int, int) */ 2935 public int requestAudioFocus(int mainStreamType, int focusChangeHint, IBinder cb, 2936 IAudioFocusDispatcher fd, String clientId, String callingPackageName) { 2937 Log.i(TAG, " AudioFocus requestAudioFocus() from " + clientId); 2938 // the main stream type for the audio focus request is currently not used. It may 2939 // potentially be used to handle multiple stream type-dependent audio focuses. 2940 2941 // we need a valid binder callback for clients 2942 if (!cb.pingBinder()) { 2943 Log.e(TAG, " AudioFocus DOA client for requestAudioFocus(), aborting."); 2944 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2945 } 2946 2947 synchronized(mAudioFocusLock) { 2948 if (!canReassignAudioFocus()) { 2949 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2950 } 2951 2952 // handle the potential premature death of the new holder of the focus 2953 // (premature death == death before abandoning focus) 2954 // Register for client death notification 2955 AudioFocusDeathHandler afdh = new AudioFocusDeathHandler(cb); 2956 try { 2957 cb.linkToDeath(afdh, 0); 2958 } catch (RemoteException e) { 2959 // client has already died! 2960 Log.w(TAG, "AudioFocus requestAudioFocus() could not link to "+cb+" binder death"); 2961 return AudioManager.AUDIOFOCUS_REQUEST_FAILED; 2962 } 2963 2964 if (!mFocusStack.empty() && mFocusStack.peek().mClientId.equals(clientId)) { 2965 // if focus is already owned by this client and the reason for acquiring the focus 2966 // hasn't changed, don't do anything 2967 if (mFocusStack.peek().mFocusChangeType == focusChangeHint) { 2968 // unlink death handler so it can be gc'ed. 2969 // linkToDeath() creates a JNI global reference preventing collection. 2970 cb.unlinkToDeath(afdh, 0); 2971 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 2972 } 2973 // the reason for the audio focus request has changed: remove the current top of 2974 // stack and respond as if we had a new focus owner 2975 FocusStackEntry fse = mFocusStack.pop(); 2976 fse.unlinkToDeath(); 2977 } 2978 2979 // notify current top of stack it is losing focus 2980 if (!mFocusStack.empty() && (mFocusStack.peek().mFocusDispatcher != null)) { 2981 try { 2982 mFocusStack.peek().mFocusDispatcher.dispatchAudioFocusChange( 2983 -1 * focusChangeHint, // loss and gain codes are inverse of each other 2984 mFocusStack.peek().mClientId); 2985 } catch (RemoteException e) { 2986 Log.e(TAG, " Failure to signal loss of focus due to "+ e); 2987 e.printStackTrace(); 2988 } 2989 } 2990 2991 // focus requester might already be somewhere below in the stack, remove it 2992 removeFocusStackEntry(clientId, false /* signal */); 2993 2994 // push focus requester at the top of the audio focus stack 2995 mFocusStack.push(new FocusStackEntry(mainStreamType, focusChangeHint, fd, cb, 2996 clientId, afdh, callingPackageName, Binder.getCallingUid())); 2997 2998 // there's a new top of the stack, let the remote control know 2999 synchronized(mRCStack) { 3000 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3001 } 3002 }//synchronized(mAudioFocusLock) 3003 3004 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 3005 } 3006 3007 /** @see AudioManager#abandonAudioFocus(IAudioFocusDispatcher) */ 3008 public int abandonAudioFocus(IAudioFocusDispatcher fl, String clientId) { 3009 Log.i(TAG, " AudioFocus abandonAudioFocus() from " + clientId); 3010 try { 3011 // this will take care of notifying the new focus owner if needed 3012 synchronized(mAudioFocusLock) { 3013 removeFocusStackEntry(clientId, true); 3014 } 3015 } catch (java.util.ConcurrentModificationException cme) { 3016 // Catching this exception here is temporary. It is here just to prevent 3017 // a crash seen when the "Silent" notification is played. This is believed to be fixed 3018 // but this try catch block is left just to be safe. 3019 Log.e(TAG, "FATAL EXCEPTION AudioFocus abandonAudioFocus() caused " + cme); 3020 cme.printStackTrace(); 3021 } 3022 3023 return AudioManager.AUDIOFOCUS_REQUEST_GRANTED; 3024 } 3025 3026 3027 public void unregisterAudioFocusClient(String clientId) { 3028 synchronized(mAudioFocusLock) { 3029 removeFocusStackEntry(clientId, false); 3030 } 3031 } 3032 3033 3034 //========================================================================================== 3035 // RemoteControl 3036 //========================================================================================== 3037 /** 3038 * Receiver for media button intents. Handles the dispatching of the media button event 3039 * to one of the registered listeners, or if there was none, resumes the intent broadcast 3040 * to the rest of the system. 3041 */ 3042 private class MediaButtonBroadcastReceiver extends BroadcastReceiver { 3043 @Override 3044 public void onReceive(Context context, Intent intent) { 3045 String action = intent.getAction(); 3046 if (!Intent.ACTION_MEDIA_BUTTON.equals(action)) { 3047 return; 3048 } 3049 KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT); 3050 if (event != null) { 3051 // if in a call or ringing, do not break the current phone app behavior 3052 // TODO modify this to let the phone app specifically get the RC focus 3053 // add modify the phone app to take advantage of the new API 3054 synchronized(mRingingLock) { 3055 if (mIsRinging || (getMode() == AudioSystem.MODE_IN_CALL) || 3056 (getMode() == AudioSystem.MODE_IN_COMMUNICATION) || 3057 (getMode() == AudioSystem.MODE_RINGTONE) ) { 3058 return; 3059 } 3060 } 3061 synchronized(mRCStack) { 3062 if (!mRCStack.empty()) { 3063 // create a new intent to fill in the extras of the registered PendingIntent 3064 Intent targetedIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); 3065 Bundle extras = intent.getExtras(); 3066 if (extras != null) { 3067 targetedIntent.putExtras(extras); 3068 // trap the current broadcast 3069 abortBroadcast(); 3070 //Log.v(TAG, " Sending intent" + targetedIntent); 3071 // send the intent that was registered by the client 3072 try { 3073 mRCStack.peek().mMediaIntent.send(context, 0, targetedIntent); 3074 } catch (CanceledException e) { 3075 Log.e(TAG, "Error sending pending intent " + mRCStack.peek()); 3076 e.printStackTrace(); 3077 } 3078 } 3079 } 3080 } 3081 } 3082 } 3083 } 3084 3085 private final Object mCurrentRcLock = new Object(); 3086 /** 3087 * The one remote control client which will receive a request for display information. 3088 * This object may be null. 3089 * Access protected by mCurrentRcLock. 3090 */ 3091 private IRemoteControlClient mCurrentRcClient = null; 3092 3093 private final static int RC_INFO_NONE = 0; 3094 private final static int RC_INFO_ALL = 3095 RemoteControlClient.FLAG_INFORMATION_REQUEST_ALBUM_ART | 3096 RemoteControlClient.FLAG_INFORMATION_REQUEST_KEY_MEDIA | 3097 RemoteControlClient.FLAG_INFORMATION_REQUEST_METADATA | 3098 RemoteControlClient.FLAG_INFORMATION_REQUEST_PLAYSTATE; 3099 3100 /** 3101 * A monotonically increasing generation counter for mCurrentRcClient. 3102 * Only accessed with a lock on mCurrentRcLock. 3103 * No value wrap-around issues as we only act on equal values. 3104 */ 3105 private int mCurrentRcClientGen = 0; 3106 3107 /** 3108 * Inner class to monitor remote control client deaths, and remove the client for the 3109 * remote control stack if necessary. 3110 */ 3111 private class RcClientDeathHandler implements IBinder.DeathRecipient { 3112 private IBinder mCb; // To be notified of client's death 3113 private PendingIntent mMediaIntent; 3114 3115 RcClientDeathHandler(IBinder cb, PendingIntent pi) { 3116 mCb = cb; 3117 mMediaIntent = pi; 3118 } 3119 3120 public void binderDied() { 3121 Log.w(TAG, " RemoteControlClient died"); 3122 // remote control client died, make sure the displays don't use it anymore 3123 // by setting its remote control client to null 3124 registerRemoteControlClient(mMediaIntent, null/*rcClient*/, null/*ignored*/); 3125 } 3126 3127 public IBinder getBinder() { 3128 return mCb; 3129 } 3130 } 3131 3132 private static class RemoteControlStackEntry { 3133 /** 3134 * The target for the ACTION_MEDIA_BUTTON events. 3135 * Always non null. 3136 */ 3137 public PendingIntent mMediaIntent; 3138 /** 3139 * The registered media button event receiver. 3140 * Always non null. 3141 */ 3142 public ComponentName mReceiverComponent; 3143 public String mCallingPackageName; 3144 public int mCallingUid; 3145 /** 3146 * Provides access to the information to display on the remote control. 3147 * May be null (when a media button event receiver is registered, 3148 * but no remote control client has been registered) */ 3149 public IRemoteControlClient mRcClient; 3150 public RcClientDeathHandler mRcClientDeathHandler; 3151 3152 /** precondition: mediaIntent != null, eventReceiver != null */ 3153 public RemoteControlStackEntry(PendingIntent mediaIntent, ComponentName eventReceiver) { 3154 mMediaIntent = mediaIntent; 3155 mReceiverComponent = eventReceiver; 3156 mCallingUid = -1; 3157 mRcClient = null; 3158 } 3159 3160 public void unlinkToRcClientDeath() { 3161 if ((mRcClientDeathHandler != null) && (mRcClientDeathHandler.mCb != null)) { 3162 try { 3163 mRcClientDeathHandler.mCb.unlinkToDeath(mRcClientDeathHandler, 0); 3164 mRcClientDeathHandler = null; 3165 } catch (java.util.NoSuchElementException e) { 3166 // not much we can do here 3167 Log.e(TAG, "Encountered " + e + " in unlinkToRcClientDeath()"); 3168 e.printStackTrace(); 3169 } 3170 } 3171 } 3172 3173 @Override 3174 protected void finalize() throws Throwable { 3175 unlinkToRcClientDeath();// unlink exception handled inside method 3176 super.finalize(); 3177 } 3178 } 3179 3180 /** 3181 * The stack of remote control event receivers. 3182 * Code sections and methods that modify the remote control event receiver stack are 3183 * synchronized on mRCStack, but also BEFORE on mFocusLock as any change in either 3184 * stack, audio focus or RC, can lead to a change in the remote control display 3185 */ 3186 private Stack<RemoteControlStackEntry> mRCStack = new Stack<RemoteControlStackEntry>(); 3187 3188 /** 3189 * Helper function: 3190 * Display in the log the current entries in the remote control focus stack 3191 */ 3192 private void dumpRCStack(PrintWriter pw) { 3193 pw.println("\nRemote Control stack entries:"); 3194 synchronized(mRCStack) { 3195 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3196 while(stackIterator.hasNext()) { 3197 RemoteControlStackEntry rcse = stackIterator.next(); 3198 pw.println(" pi: " + rcse.mMediaIntent + 3199 " -- ercvr: " + rcse.mReceiverComponent + 3200 " -- client: " + rcse.mRcClient + 3201 " -- uid: " + rcse.mCallingUid); 3202 } 3203 } 3204 } 3205 3206 /** 3207 * Helper function: 3208 * Remove any entry in the remote control stack that has the same package name as packageName 3209 * Pre-condition: packageName != null 3210 */ 3211 private void removeMediaButtonReceiverForPackage(String packageName) { 3212 synchronized(mRCStack) { 3213 if (mRCStack.empty()) { 3214 return; 3215 } else { 3216 RemoteControlStackEntry oldTop = mRCStack.peek(); 3217 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3218 // iterate over the stack entries 3219 while(stackIterator.hasNext()) { 3220 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 3221 if (packageName.equalsIgnoreCase(rcse.mReceiverComponent.getPackageName())) { 3222 // a stack entry is from the package being removed, remove it from the stack 3223 stackIterator.remove(); 3224 rcse.unlinkToRcClientDeath(); 3225 } 3226 } 3227 if (mRCStack.empty()) { 3228 // no saved media button receiver 3229 mAudioHandler.sendMessage( 3230 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 3231 null)); 3232 } else if (oldTop != mRCStack.peek()) { 3233 // the top of the stack has changed, save it in the system settings 3234 // by posting a message to persist it 3235 mAudioHandler.sendMessage( 3236 mAudioHandler.obtainMessage(MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, 3237 mRCStack.peek().mReceiverComponent)); 3238 } 3239 } 3240 } 3241 } 3242 3243 /** 3244 * Helper function: 3245 * Restore remote control receiver from the system settings. 3246 */ 3247 private void restoreMediaButtonReceiver() { 3248 String receiverName = Settings.System.getString(mContentResolver, 3249 Settings.System.MEDIA_BUTTON_RECEIVER); 3250 if ((null != receiverName) && !receiverName.isEmpty()) { 3251 ComponentName eventReceiver = ComponentName.unflattenFromString(receiverName); 3252 // construct a PendingIntent targeted to the restored component name 3253 // for the media button and register it 3254 Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); 3255 // the associated intent will be handled by the component being registered 3256 mediaButtonIntent.setComponent(eventReceiver); 3257 PendingIntent pi = PendingIntent.getBroadcast(mContext, 3258 0/*requestCode, ignored*/, mediaButtonIntent, 0/*flags*/); 3259 registerMediaButtonIntent(pi, eventReceiver); 3260 } 3261 } 3262 3263 /** 3264 * Helper function: 3265 * Set the new remote control receiver at the top of the RC focus stack. 3266 * precondition: mediaIntent != null, target != null 3267 */ 3268 private void pushMediaButtonReceiver(PendingIntent mediaIntent, ComponentName target) { 3269 // already at top of stack? 3270 if (!mRCStack.empty() && mRCStack.peek().mMediaIntent.equals(mediaIntent)) { 3271 return; 3272 } 3273 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3274 RemoteControlStackEntry rcse = null; 3275 boolean wasInsideStack = false; 3276 while(stackIterator.hasNext()) { 3277 rcse = (RemoteControlStackEntry)stackIterator.next(); 3278 if(rcse.mMediaIntent.equals(mediaIntent)) { 3279 wasInsideStack = true; 3280 stackIterator.remove(); 3281 break; 3282 } 3283 } 3284 if (!wasInsideStack) { 3285 rcse = new RemoteControlStackEntry(mediaIntent, target); 3286 } 3287 mRCStack.push(rcse); 3288 3289 // post message to persist the default media button receiver 3290 mAudioHandler.sendMessage( mAudioHandler.obtainMessage( 3291 MSG_PERSIST_MEDIABUTTONRECEIVER, 0, 0, target/*obj*/) ); 3292 } 3293 3294 /** 3295 * Helper function: 3296 * Remove the remote control receiver from the RC focus stack. 3297 * precondition: pi != null 3298 */ 3299 private void removeMediaButtonReceiver(PendingIntent pi) { 3300 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3301 while(stackIterator.hasNext()) { 3302 RemoteControlStackEntry rcse = (RemoteControlStackEntry)stackIterator.next(); 3303 if(rcse.mMediaIntent.equals(pi)) { 3304 stackIterator.remove(); 3305 rcse.unlinkToRcClientDeath(); 3306 break; 3307 } 3308 } 3309 } 3310 3311 /** 3312 * Helper function: 3313 * Called synchronized on mRCStack 3314 */ 3315 private boolean isCurrentRcController(PendingIntent pi) { 3316 if (!mRCStack.empty() && mRCStack.peek().mMediaIntent.equals(pi)) { 3317 return true; 3318 } 3319 return false; 3320 } 3321 3322 //========================================================================================== 3323 // Remote control display / client 3324 //========================================================================================== 3325 /** 3326 * Update the remote control displays with the new "focused" client generation 3327 */ 3328 private void setNewRcClientOnDisplays_syncRcsCurrc(int newClientGeneration, 3329 PendingIntent newMediaIntent, boolean clearing) { 3330 // NOTE: Only one IRemoteControlDisplay supported in this implementation 3331 if (mRcDisplay != null) { 3332 try { 3333 mRcDisplay.setCurrentClientId( 3334 newClientGeneration, newMediaIntent, clearing); 3335 } catch (RemoteException e) { 3336 Log.e(TAG, "Dead display in setNewRcClientOnDisplays_syncRcsCurrc() "+e); 3337 // if we had a display before, stop monitoring its death 3338 rcDisplay_stopDeathMonitor_syncRcStack(); 3339 mRcDisplay = null; 3340 } 3341 } 3342 } 3343 3344 /** 3345 * Update the remote control clients with the new "focused" client generation 3346 */ 3347 private void setNewRcClientGenerationOnClients_syncRcsCurrc(int newClientGeneration) { 3348 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3349 while(stackIterator.hasNext()) { 3350 RemoteControlStackEntry se = stackIterator.next(); 3351 if ((se != null) && (se.mRcClient != null)) { 3352 try { 3353 se.mRcClient.setCurrentClientGenerationId(newClientGeneration); 3354 } catch (RemoteException e) { 3355 Log.w(TAG, "Dead client in setNewRcClientGenerationOnClients_syncRcsCurrc()"+e); 3356 stackIterator.remove(); 3357 se.unlinkToRcClientDeath(); 3358 } 3359 } 3360 } 3361 } 3362 3363 /** 3364 * Update the displays and clients with the new "focused" client generation and name 3365 * @param newClientGeneration the new generation value matching a client update 3366 * @param newClientEventReceiver the media button event receiver associated with the client. 3367 * May be null, which implies there is no registered media button event receiver. 3368 * @param clearing true if the new client generation value maps to a remote control update 3369 * where the display should be cleared. 3370 */ 3371 private void setNewRcClient_syncRcsCurrc(int newClientGeneration, 3372 PendingIntent newMediaIntent, boolean clearing) { 3373 // send the new valid client generation ID to all displays 3374 setNewRcClientOnDisplays_syncRcsCurrc(newClientGeneration, newMediaIntent, clearing); 3375 // send the new valid client generation ID to all clients 3376 setNewRcClientGenerationOnClients_syncRcsCurrc(newClientGeneration); 3377 } 3378 3379 /** 3380 * Called when processing MSG_RCDISPLAY_CLEAR event 3381 */ 3382 private void onRcDisplayClear() { 3383 if (DEBUG_RC) Log.i(TAG, "Clear remote control display"); 3384 3385 synchronized(mRCStack) { 3386 synchronized(mCurrentRcLock) { 3387 mCurrentRcClientGen++; 3388 // synchronously update the displays and clients with the new client generation 3389 setNewRcClient_syncRcsCurrc(mCurrentRcClientGen, 3390 null /*newMediaIntent*/, true /*clearing*/); 3391 } 3392 } 3393 } 3394 3395 /** 3396 * Called when processing MSG_RCDISPLAY_UPDATE event 3397 */ 3398 private void onRcDisplayUpdate(RemoteControlStackEntry rcse, int flags /* USED ?*/) { 3399 synchronized(mRCStack) { 3400 synchronized(mCurrentRcLock) { 3401 if ((mCurrentRcClient != null) && (mCurrentRcClient.equals(rcse.mRcClient))) { 3402 if (DEBUG_RC) Log.i(TAG, "Display/update remote control "); 3403 3404 mCurrentRcClientGen++; 3405 // synchronously update the displays and clients with 3406 // the new client generation 3407 setNewRcClient_syncRcsCurrc(mCurrentRcClientGen, 3408 rcse.mMediaIntent /*newMediaIntent*/, 3409 false /*clearing*/); 3410 3411 // tell the current client that it needs to send info 3412 try { 3413 mCurrentRcClient.onInformationRequested(mCurrentRcClientGen, 3414 flags, mArtworkExpectedWidth, mArtworkExpectedHeight); 3415 } catch (RemoteException e) { 3416 Log.e(TAG, "Current valid remote client is dead: "+e); 3417 mCurrentRcClient = null; 3418 } 3419 } else { 3420 // the remote control display owner has changed between the 3421 // the message to update the display was sent, and the time it 3422 // gets to be processed (now) 3423 } 3424 } 3425 } 3426 } 3427 3428 3429 /** 3430 * Helper function: 3431 * Called synchronized on mRCStack 3432 */ 3433 private void clearRemoteControlDisplay_syncAfRcs() { 3434 synchronized(mCurrentRcLock) { 3435 mCurrentRcClient = null; 3436 } 3437 // will cause onRcDisplayClear() to be called in AudioService's handler thread 3438 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_CLEAR) ); 3439 } 3440 3441 /** 3442 * Helper function for code readability: only to be called from 3443 * checkUpdateRemoteControlDisplay_syncAfRcs() which checks the preconditions for 3444 * this method. 3445 * Preconditions: 3446 * - called synchronized mAudioFocusLock then on mRCStack 3447 * - mRCStack.isEmpty() is false 3448 */ 3449 private void updateRemoteControlDisplay_syncAfRcs(int infoChangedFlags) { 3450 RemoteControlStackEntry rcse = mRCStack.peek(); 3451 int infoFlagsAboutToBeUsed = infoChangedFlags; 3452 // this is where we enforce opt-in for information display on the remote controls 3453 // with the new AudioManager.registerRemoteControlClient() API 3454 if (rcse.mRcClient == null) { 3455 //Log.w(TAG, "Can't update remote control display with null remote control client"); 3456 clearRemoteControlDisplay_syncAfRcs(); 3457 return; 3458 } 3459 synchronized(mCurrentRcLock) { 3460 if (!rcse.mRcClient.equals(mCurrentRcClient)) { 3461 // new RC client, assume every type of information shall be queried 3462 infoFlagsAboutToBeUsed = RC_INFO_ALL; 3463 } 3464 mCurrentRcClient = rcse.mRcClient; 3465 } 3466 // will cause onRcDisplayUpdate() to be called in AudioService's handler thread 3467 mAudioHandler.sendMessage( mAudioHandler.obtainMessage(MSG_RCDISPLAY_UPDATE, 3468 infoFlagsAboutToBeUsed /* arg1 */, 0, rcse /* obj, != null */) ); 3469 } 3470 3471 /** 3472 * Helper function: 3473 * Called synchronized on mAudioFocusLock, then mRCStack 3474 * Check whether the remote control display should be updated, triggers the update if required 3475 * @param infoChangedFlags the flags corresponding to the remote control client information 3476 * that has changed, if applicable (checking for the update conditions might trigger a 3477 * clear, rather than an update event). 3478 */ 3479 private void checkUpdateRemoteControlDisplay_syncAfRcs(int infoChangedFlags) { 3480 // determine whether the remote control display should be refreshed 3481 // if either stack is empty, there is a mismatch, so clear the RC display 3482 if (mRCStack.isEmpty() || mFocusStack.isEmpty()) { 3483 clearRemoteControlDisplay_syncAfRcs(); 3484 return; 3485 } 3486 // if the top of the two stacks belong to different packages, there is a mismatch, clear 3487 if ((mRCStack.peek().mCallingPackageName != null) 3488 && (mFocusStack.peek().mPackageName != null) 3489 && !(mRCStack.peek().mCallingPackageName.compareTo( 3490 mFocusStack.peek().mPackageName) == 0)) { 3491 clearRemoteControlDisplay_syncAfRcs(); 3492 return; 3493 } 3494 // if the audio focus didn't originate from the same Uid as the one in which the remote 3495 // control information will be retrieved, clear 3496 if (mRCStack.peek().mCallingUid != mFocusStack.peek().mCallingUid) { 3497 clearRemoteControlDisplay_syncAfRcs(); 3498 return; 3499 } 3500 // refresh conditions were verified: update the remote controls 3501 // ok to call: synchronized mAudioFocusLock then on mRCStack, mRCStack is not empty 3502 updateRemoteControlDisplay_syncAfRcs(infoChangedFlags); 3503 } 3504 3505 /** 3506 * see AudioManager.registerMediaButtonIntent(PendingIntent pi, ComponentName c) 3507 * precondition: mediaIntent != null, target != null 3508 */ 3509 public void registerMediaButtonIntent(PendingIntent mediaIntent, ComponentName eventReceiver) { 3510 Log.i(TAG, " Remote Control registerMediaButtonIntent() for " + mediaIntent); 3511 3512 synchronized(mAudioFocusLock) { 3513 synchronized(mRCStack) { 3514 pushMediaButtonReceiver(mediaIntent, eventReceiver); 3515 // new RC client, assume every type of information shall be queried 3516 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3517 } 3518 } 3519 } 3520 3521 /** 3522 * see AudioManager.unregisterMediaButtonIntent(PendingIntent mediaIntent) 3523 * precondition: mediaIntent != null, eventReceiver != null 3524 */ 3525 public void unregisterMediaButtonIntent(PendingIntent mediaIntent, ComponentName eventReceiver) 3526 { 3527 Log.i(TAG, " Remote Control unregisterMediaButtonIntent() for " + mediaIntent); 3528 3529 synchronized(mAudioFocusLock) { 3530 synchronized(mRCStack) { 3531 boolean topOfStackWillChange = isCurrentRcController(mediaIntent); 3532 removeMediaButtonReceiver(mediaIntent); 3533 if (topOfStackWillChange) { 3534 // current RC client will change, assume every type of info needs to be queried 3535 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3536 } 3537 } 3538 } 3539 } 3540 3541 /** 3542 * see AudioManager.registerRemoteControlClient(ComponentName eventReceiver, ...) 3543 * Note: using this method with rcClient == null is a way to "disable" the IRemoteControlClient 3544 * without modifying the RC stack, but while still causing the display to refresh (will 3545 * become blank as a result of this) 3546 */ 3547 public void registerRemoteControlClient(PendingIntent mediaIntent, 3548 IRemoteControlClient rcClient, String callingPackageName) { 3549 if (DEBUG_RC) Log.i(TAG, "Register remote control client rcClient="+rcClient); 3550 synchronized(mAudioFocusLock) { 3551 synchronized(mRCStack) { 3552 // store the new display information 3553 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3554 while(stackIterator.hasNext()) { 3555 RemoteControlStackEntry rcse = stackIterator.next(); 3556 if(rcse.mMediaIntent.equals(mediaIntent)) { 3557 // already had a remote control client? 3558 if (rcse.mRcClientDeathHandler != null) { 3559 // stop monitoring the old client's death 3560 rcse.unlinkToRcClientDeath(); 3561 } 3562 // save the new remote control client 3563 rcse.mRcClient = rcClient; 3564 rcse.mCallingPackageName = callingPackageName; 3565 rcse.mCallingUid = Binder.getCallingUid(); 3566 if (rcClient == null) { 3567 // here rcse.mRcClientDeathHandler is null; 3568 break; 3569 } 3570 3571 // there is a new (non-null) client: 3572 // 1/ give the new client the current display (if any) 3573 if (mRcDisplay != null) { 3574 try { 3575 rcse.mRcClient.plugRemoteControlDisplay(mRcDisplay); 3576 } catch (RemoteException e) { 3577 Log.e(TAG, "Error connecting remote control display to client: "+e); 3578 e.printStackTrace(); 3579 } 3580 } 3581 // 2/ monitor the new client's death 3582 IBinder b = rcse.mRcClient.asBinder(); 3583 RcClientDeathHandler rcdh = 3584 new RcClientDeathHandler(b, rcse.mMediaIntent); 3585 try { 3586 b.linkToDeath(rcdh, 0); 3587 } catch (RemoteException e) { 3588 // remote control client is DOA, disqualify it 3589 Log.w(TAG, "registerRemoteControlClient() has a dead client " + b); 3590 rcse.mRcClient = null; 3591 } 3592 rcse.mRcClientDeathHandler = rcdh; 3593 break; 3594 } 3595 } 3596 // if the eventReceiver is at the top of the stack 3597 // then check for potential refresh of the remote controls 3598 if (isCurrentRcController(mediaIntent)) { 3599 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3600 } 3601 } 3602 } 3603 } 3604 3605 /** 3606 * see AudioManager.unregisterRemoteControlClient(PendingIntent pi, ...) 3607 * rcClient is guaranteed non-null 3608 */ 3609 public void unregisterRemoteControlClient(PendingIntent mediaIntent, 3610 IRemoteControlClient rcClient) { 3611 synchronized(mAudioFocusLock) { 3612 synchronized(mRCStack) { 3613 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3614 while(stackIterator.hasNext()) { 3615 RemoteControlStackEntry rcse = stackIterator.next(); 3616 if ((rcse.mMediaIntent.equals(mediaIntent)) 3617 && rcClient.equals(rcse.mRcClient)) { 3618 // we found the IRemoteControlClient to unregister 3619 // stop monitoring its death 3620 rcse.unlinkToRcClientDeath(); 3621 // reset the client-related fields 3622 rcse.mRcClient = null; 3623 rcse.mCallingPackageName = null; 3624 } 3625 } 3626 } 3627 } 3628 } 3629 3630 /** 3631 * The remote control displays. 3632 * Access synchronized on mRCStack 3633 * NOTE: Only one IRemoteControlDisplay supported in this implementation 3634 */ 3635 private IRemoteControlDisplay mRcDisplay; 3636 private RcDisplayDeathHandler mRcDisplayDeathHandler; 3637 private int mArtworkExpectedWidth = -1; 3638 private int mArtworkExpectedHeight = -1; 3639 /** 3640 * Inner class to monitor remote control display deaths, and unregister them from the list 3641 * of displays if necessary. 3642 */ 3643 private class RcDisplayDeathHandler implements IBinder.DeathRecipient { 3644 private IBinder mCb; // To be notified of client's death 3645 3646 public RcDisplayDeathHandler(IBinder b) { 3647 if (DEBUG_RC) Log.i(TAG, "new RcDisplayDeathHandler for "+b); 3648 mCb = b; 3649 } 3650 3651 public void binderDied() { 3652 synchronized(mRCStack) { 3653 Log.w(TAG, "RemoteControl: display died"); 3654 mRcDisplay = null; 3655 } 3656 } 3657 3658 public void unlinkToRcDisplayDeath() { 3659 if (DEBUG_RC) Log.i(TAG, "unlinkToRcDisplayDeath for "+mCb); 3660 try { 3661 mCb.unlinkToDeath(this, 0); 3662 } catch (java.util.NoSuchElementException e) { 3663 // not much we can do here, the display was being unregistered anyway 3664 Log.e(TAG, "Encountered " + e + " in unlinkToRcDisplayDeath()"); 3665 e.printStackTrace(); 3666 } 3667 } 3668 3669 } 3670 3671 private void rcDisplay_stopDeathMonitor_syncRcStack() { 3672 if (mRcDisplay != null) { // implies (mRcDisplayDeathHandler != null) 3673 // we had a display before, stop monitoring its death 3674 mRcDisplayDeathHandler.unlinkToRcDisplayDeath(); 3675 } 3676 } 3677 3678 private void rcDisplay_startDeathMonitor_syncRcStack() { 3679 if (mRcDisplay != null) { 3680 // new non-null display, monitor its death 3681 IBinder b = mRcDisplay.asBinder(); 3682 mRcDisplayDeathHandler = new RcDisplayDeathHandler(b); 3683 try { 3684 b.linkToDeath(mRcDisplayDeathHandler, 0); 3685 } catch (RemoteException e) { 3686 // remote control display is DOA, disqualify it 3687 Log.w(TAG, "registerRemoteControlDisplay() has a dead client " + b); 3688 mRcDisplay = null; 3689 } 3690 } 3691 } 3692 3693 /** 3694 * Register an IRemoteControlDisplay. 3695 * Notify all IRemoteControlClient of the new display and cause the RemoteControlClient 3696 * at the top of the stack to update the new display with its information. 3697 * Since only one IRemoteControlDisplay is supported, this will unregister the previous display. 3698 * @param rcd the IRemoteControlDisplay to register. No effect if null. 3699 */ 3700 public void registerRemoteControlDisplay(IRemoteControlDisplay rcd) { 3701 if (DEBUG_RC) Log.d(TAG, ">>> registerRemoteControlDisplay("+rcd+")"); 3702 synchronized(mAudioFocusLock) { 3703 synchronized(mRCStack) { 3704 if ((mRcDisplay == rcd) || (rcd == null)) { 3705 return; 3706 } 3707 // if we had a display before, stop monitoring its death 3708 rcDisplay_stopDeathMonitor_syncRcStack(); 3709 mRcDisplay = rcd; 3710 // new display, start monitoring its death 3711 rcDisplay_startDeathMonitor_syncRcStack(); 3712 3713 // let all the remote control clients there is a new display 3714 // no need to unplug the previous because we only support one display 3715 // and the clients don't track the death of the display 3716 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3717 while(stackIterator.hasNext()) { 3718 RemoteControlStackEntry rcse = stackIterator.next(); 3719 if(rcse.mRcClient != null) { 3720 try { 3721 rcse.mRcClient.plugRemoteControlDisplay(mRcDisplay); 3722 } catch (RemoteException e) { 3723 Log.e(TAG, "Error connecting remote control display to client: " + e); 3724 e.printStackTrace(); 3725 } 3726 } 3727 } 3728 3729 // we have a new display, of which all the clients are now aware: have it be updated 3730 checkUpdateRemoteControlDisplay_syncAfRcs(RC_INFO_ALL); 3731 } 3732 } 3733 } 3734 3735 /** 3736 * Unregister an IRemoteControlDisplay. 3737 * Since only one IRemoteControlDisplay is supported, this has no effect if the one to 3738 * unregister is not the current one. 3739 * @param rcd the IRemoteControlDisplay to unregister. No effect if null. 3740 */ 3741 public void unregisterRemoteControlDisplay(IRemoteControlDisplay rcd) { 3742 if (DEBUG_RC) Log.d(TAG, "<<< unregisterRemoteControlDisplay("+rcd+")"); 3743 synchronized(mRCStack) { 3744 // only one display here, so you can only unregister the current display 3745 if ((rcd == null) || (rcd != mRcDisplay)) { 3746 if (DEBUG_RC) Log.w(TAG, " trying to unregister unregistered RCD"); 3747 return; 3748 } 3749 // if we had a display before, stop monitoring its death 3750 rcDisplay_stopDeathMonitor_syncRcStack(); 3751 mRcDisplay = null; 3752 3753 // disconnect this remote control display from all the clients 3754 Iterator<RemoteControlStackEntry> stackIterator = mRCStack.iterator(); 3755 while(stackIterator.hasNext()) { 3756 RemoteControlStackEntry rcse = stackIterator.next(); 3757 if(rcse.mRcClient != null) { 3758 try { 3759 rcse.mRcClient.unplugRemoteControlDisplay(rcd); 3760 } catch (RemoteException e) { 3761 Log.e(TAG, "Error disconnecting remote control display to client: " + e); 3762 e.printStackTrace(); 3763 } 3764 } 3765 } 3766 } 3767 } 3768 3769 public void remoteControlDisplayUsesBitmapSize(IRemoteControlDisplay rcd, int w, int h) { 3770 synchronized(mRCStack) { 3771 // NOTE: Only one IRemoteControlDisplay supported in this implementation 3772 mArtworkExpectedWidth = w; 3773 mArtworkExpectedHeight = h; 3774 } 3775 } 3776 3777 @Override 3778 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 3779 // TODO probably a lot more to do here than just the audio focus and remote control stacks 3780 dumpFocusStack(pw); 3781 dumpRCStack(pw); 3782 } 3783 3784 3785} 3786