/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.media; import android.Manifest; import android.annotation.NonNull; import android.annotation.SdkConstant; import android.annotation.SdkConstant.SdkConstantType; import android.annotation.SystemApi; import android.app.PendingIntent; import android.bluetooth.BluetoothDevice; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.media.audiopolicy.AudioPolicy; import android.media.session.MediaController; import android.media.session.MediaSession; import android.media.session.MediaSessionLegacyHelper; import android.media.session.MediaSessionManager; import android.os.Binder; import android.os.Handler; import android.os.IBinder; import android.os.Looper; import android.os.Message; import android.os.Process; import android.os.RemoteException; import android.os.SystemClock; import android.os.ServiceManager; import android.os.UserHandle; import android.provider.Settings; import android.util.ArrayMap; import android.util.Log; import android.util.Pair; import android.view.KeyEvent; import java.util.ArrayList; import java.util.Collection; import java.util.HashMap; import java.util.Iterator; /** * AudioManager provides access to volume and ringer mode control. * <p> * Use <code>Context.getSystemService(Context.AUDIO_SERVICE)</code> to get * an instance of this class. */ public class AudioManager { private Context mOriginalContext; private Context mApplicationContext; private long mVolumeKeyUpTime; private final boolean mUseVolumeKeySounds; private final boolean mUseFixedVolume; private static String TAG = "AudioManager"; private static final AudioPortEventHandler sAudioPortEventHandler = new AudioPortEventHandler(); /** * Broadcast intent, a hint for applications that audio is about to become * 'noisy' due to a change in audio outputs. For example, this intent may * be sent when a wired headset is unplugged, or when an A2DP audio * sink is disconnected, and the audio system is about to automatically * switch audio route to the speaker. Applications that are controlling * audio streams may consider pausing, reducing volume or some other action * on receipt of this intent so as not to surprise the user with audio * from the speaker. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_AUDIO_BECOMING_NOISY = "android.media.AUDIO_BECOMING_NOISY"; /** * Sticky broadcast intent action indicating that the ringer mode has * changed. Includes the new ringer mode. * * @see #EXTRA_RINGER_MODE */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String RINGER_MODE_CHANGED_ACTION = "android.media.RINGER_MODE_CHANGED"; /** * @hide * Sticky broadcast intent action indicating that the internal ringer mode has * changed. Includes the new ringer mode. * * @see #EXTRA_RINGER_MODE */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String INTERNAL_RINGER_MODE_CHANGED_ACTION = "android.media.INTERNAL_RINGER_MODE_CHANGED_ACTION"; /** * The new ringer mode. * * @see #RINGER_MODE_CHANGED_ACTION * @see #RINGER_MODE_NORMAL * @see #RINGER_MODE_SILENT * @see #RINGER_MODE_VIBRATE */ public static final String EXTRA_RINGER_MODE = "android.media.EXTRA_RINGER_MODE"; /** * Broadcast intent action indicating that the vibrate setting has * changed. Includes the vibrate type and its new setting. * * @see #EXTRA_VIBRATE_TYPE * @see #EXTRA_VIBRATE_SETTING * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode and listen to {@link #RINGER_MODE_CHANGED_ACTION} instead. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String VIBRATE_SETTING_CHANGED_ACTION = "android.media.VIBRATE_SETTING_CHANGED"; /** * @hide Broadcast intent when the volume for a particular stream type changes. * Includes the stream, the new volume and previous volumes. * Notes: * - for internal platform use only, do not make public, * - never used for "remote" volume changes * * @see #EXTRA_VOLUME_STREAM_TYPE * @see #EXTRA_VOLUME_STREAM_VALUE * @see #EXTRA_PREV_VOLUME_STREAM_VALUE */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String VOLUME_CHANGED_ACTION = "android.media.VOLUME_CHANGED_ACTION"; /** * @hide Broadcast intent when the devices for a particular stream type changes. * Includes the stream, the new devices and previous devices. * Notes: * - for internal platform use only, do not make public, * - never used for "remote" volume changes * * @see #EXTRA_VOLUME_STREAM_TYPE * @see #EXTRA_VOLUME_STREAM_DEVICES * @see #EXTRA_PREV_VOLUME_STREAM_DEVICES * @see #getDevicesForStream */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String STREAM_DEVICES_CHANGED_ACTION = "android.media.STREAM_DEVICES_CHANGED_ACTION"; /** * @hide Broadcast intent when a stream mute state changes. * Includes the stream that changed and the new mute state * * @see #EXTRA_VOLUME_STREAM_TYPE * @see #EXTRA_STREAM_VOLUME_MUTED */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String STREAM_MUTE_CHANGED_ACTION = "android.media.STREAM_MUTE_CHANGED_ACTION"; /** * @hide Broadcast intent when the master mute state changes. * Includes the the new volume * * @see #EXTRA_MASTER_VOLUME_MUTED */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String MASTER_MUTE_CHANGED_ACTION = "android.media.MASTER_MUTE_CHANGED_ACTION"; /** * The new vibrate setting for a particular type. * * @see #VIBRATE_SETTING_CHANGED_ACTION * @see #EXTRA_VIBRATE_TYPE * @see #VIBRATE_SETTING_ON * @see #VIBRATE_SETTING_OFF * @see #VIBRATE_SETTING_ONLY_SILENT * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode and listen to {@link #RINGER_MODE_CHANGED_ACTION} instead. */ public static final String EXTRA_VIBRATE_SETTING = "android.media.EXTRA_VIBRATE_SETTING"; /** * The vibrate type whose setting has changed. * * @see #VIBRATE_SETTING_CHANGED_ACTION * @see #VIBRATE_TYPE_NOTIFICATION * @see #VIBRATE_TYPE_RINGER * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode and listen to {@link #RINGER_MODE_CHANGED_ACTION} instead. */ public static final String EXTRA_VIBRATE_TYPE = "android.media.EXTRA_VIBRATE_TYPE"; /** * @hide The stream type for the volume changed intent. */ public static final String EXTRA_VOLUME_STREAM_TYPE = "android.media.EXTRA_VOLUME_STREAM_TYPE"; /** * @hide * The stream type alias for the volume changed intent. * For instance the intent may indicate a change of the {@link #STREAM_NOTIFICATION} stream * type (as indicated by the {@link #EXTRA_VOLUME_STREAM_TYPE} extra), but this is also * reflected by a change of the volume of its alias, {@link #STREAM_RING} on some devices, * {@link #STREAM_MUSIC} on others (e.g. a television). */ public static final String EXTRA_VOLUME_STREAM_TYPE_ALIAS = "android.media.EXTRA_VOLUME_STREAM_TYPE_ALIAS"; /** * @hide The volume associated with the stream for the volume changed intent. */ public static final String EXTRA_VOLUME_STREAM_VALUE = "android.media.EXTRA_VOLUME_STREAM_VALUE"; /** * @hide The previous volume associated with the stream for the volume changed intent. */ public static final String EXTRA_PREV_VOLUME_STREAM_VALUE = "android.media.EXTRA_PREV_VOLUME_STREAM_VALUE"; /** * @hide The devices associated with the stream for the stream devices changed intent. */ public static final String EXTRA_VOLUME_STREAM_DEVICES = "android.media.EXTRA_VOLUME_STREAM_DEVICES"; /** * @hide The previous devices associated with the stream for the stream devices changed intent. */ public static final String EXTRA_PREV_VOLUME_STREAM_DEVICES = "android.media.EXTRA_PREV_VOLUME_STREAM_DEVICES"; /** * @hide The new master volume mute state for the master mute changed intent. * Value is boolean */ public static final String EXTRA_MASTER_VOLUME_MUTED = "android.media.EXTRA_MASTER_VOLUME_MUTED"; /** * @hide The new stream volume mute state for the stream mute changed intent. * Value is boolean */ public static final String EXTRA_STREAM_VOLUME_MUTED = "android.media.EXTRA_STREAM_VOLUME_MUTED"; /** * Broadcast Action: Wired Headset plugged in or unplugged. * * You <em>cannot</em> receive this through components declared * in manifests, only by explicitly registering for it with * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter) * Context.registerReceiver()}. * * <p>The intent will have the following extra values: * <ul> * <li><em>state</em> - 0 for unplugged, 1 for plugged. </li> * <li><em>name</em> - Headset type, human readable string </li> * <li><em>microphone</em> - 1 if headset has a microphone, 0 otherwise </li> * </ul> * </ul> */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_HEADSET_PLUG = "android.intent.action.HEADSET_PLUG"; /** * Broadcast Action: A sticky broadcast indicating an HDMI cable was plugged or unplugged. * * The intent will have the following extra values: {@link #EXTRA_AUDIO_PLUG_STATE}, * {@link #EXTRA_MAX_CHANNEL_COUNT}, {@link #EXTRA_ENCODINGS}. * <p>It can only be received by explicitly registering for it with * {@link Context#registerReceiver(BroadcastReceiver, IntentFilter)}. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_HDMI_AUDIO_PLUG = "android.media.action.HDMI_AUDIO_PLUG"; /** * Extra used in {@link #ACTION_HDMI_AUDIO_PLUG} to communicate whether HDMI is plugged in * or unplugged. * An integer value of 1 indicates a plugged-in state, 0 is unplugged. */ public static final String EXTRA_AUDIO_PLUG_STATE = "android.media.extra.AUDIO_PLUG_STATE"; /** * Extra used in {@link #ACTION_HDMI_AUDIO_PLUG} to define the maximum number of channels * supported by the HDMI device. * The corresponding integer value is only available when the device is plugged in (as expressed * by {@link #EXTRA_AUDIO_PLUG_STATE}). */ public static final String EXTRA_MAX_CHANNEL_COUNT = "android.media.extra.MAX_CHANNEL_COUNT"; /** * Extra used in {@link #ACTION_HDMI_AUDIO_PLUG} to define the audio encodings supported by * the connected HDMI device. * The corresponding array of encoding values is only available when the device is plugged in * (as expressed by {@link #EXTRA_AUDIO_PLUG_STATE}). Encoding values are defined in * {@link AudioFormat} (for instance see {@link AudioFormat#ENCODING_PCM_16BIT}). Use * {@link android.content.Intent#getIntArrayExtra(String)} to retrieve the encoding values. */ public static final String EXTRA_ENCODINGS = "android.media.extra.ENCODINGS"; /** The audio stream for phone calls */ public static final int STREAM_VOICE_CALL = AudioSystem.STREAM_VOICE_CALL; /** The audio stream for system sounds */ public static final int STREAM_SYSTEM = AudioSystem.STREAM_SYSTEM; /** The audio stream for the phone ring */ public static final int STREAM_RING = AudioSystem.STREAM_RING; /** The audio stream for music playback */ public static final int STREAM_MUSIC = AudioSystem.STREAM_MUSIC; /** The audio stream for alarms */ public static final int STREAM_ALARM = AudioSystem.STREAM_ALARM; /** The audio stream for notifications */ public static final int STREAM_NOTIFICATION = AudioSystem.STREAM_NOTIFICATION; /** @hide The audio stream for phone calls when connected to bluetooth */ public static final int STREAM_BLUETOOTH_SCO = AudioSystem.STREAM_BLUETOOTH_SCO; /** @hide The audio stream for enforced system sounds in certain countries (e.g camera in Japan) */ public static final int STREAM_SYSTEM_ENFORCED = AudioSystem.STREAM_SYSTEM_ENFORCED; /** The audio stream for DTMF Tones */ public static final int STREAM_DTMF = AudioSystem.STREAM_DTMF; /** @hide The audio stream for text to speech (TTS) */ public static final int STREAM_TTS = AudioSystem.STREAM_TTS; /** Number of audio streams */ /** * @deprecated Use AudioSystem.getNumStreamTypes() instead */ @Deprecated public static final int NUM_STREAMS = AudioSystem.NUM_STREAMS; /** * Increase the ringer volume. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int ADJUST_RAISE = 1; /** * Decrease the ringer volume. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int ADJUST_LOWER = -1; /** * Maintain the previous ringer volume. This may be useful when needing to * show the volume toast without actually modifying the volume. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int ADJUST_SAME = 0; /** * Mute the volume. Has no effect if the stream is already muted. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int ADJUST_MUTE = -100; /** * Unmute the volume. Has no effect if the stream is not muted. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int ADJUST_UNMUTE = 100; /** * Toggle the mute state. If muted the stream will be unmuted. If not muted * the stream will be muted. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int ADJUST_TOGGLE_MUTE = 101; // Flags should be powers of 2! /** * Show a toast containing the current volume. * * @see #adjustStreamVolume(int, int, int) * @see #adjustVolume(int, int) * @see #setStreamVolume(int, int, int) * @see #setRingerMode(int) */ public static final int FLAG_SHOW_UI = 1 << 0; /** * Whether to include ringer modes as possible options when changing volume. * For example, if true and volume level is 0 and the volume is adjusted * with {@link #ADJUST_LOWER}, then the ringer mode may switch the silent or * vibrate mode. * <p> * By default this is on for the ring stream. If this flag is included, * this behavior will be present regardless of the stream type being * affected by the ringer mode. * * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) */ public static final int FLAG_ALLOW_RINGER_MODES = 1 << 1; /** * Whether to play a sound when changing the volume. * <p> * If this is given to {@link #adjustVolume(int, int)} or * {@link #adjustSuggestedStreamVolume(int, int, int)}, it may be ignored * in some cases (for example, the decided stream type is not * {@link AudioManager#STREAM_RING}, or the volume is being adjusted * downward). * * @see #adjustStreamVolume(int, int, int) * @see #adjustVolume(int, int) * @see #setStreamVolume(int, int, int) */ public static final int FLAG_PLAY_SOUND = 1 << 2; /** * Removes any sounds/vibrate that may be in the queue, or are playing (related to * changing volume). */ public static final int FLAG_REMOVE_SOUND_AND_VIBRATE = 1 << 3; /** * Whether to vibrate if going into the vibrate ringer mode. */ public static final int FLAG_VIBRATE = 1 << 4; /** * Indicates to VolumePanel that the volume slider should be disabled as user * cannot change the stream volume * @hide */ public static final int FLAG_FIXED_VOLUME = 1 << 5; /** * Indicates the volume set/adjust call is for Bluetooth absolute volume * @hide */ public static final int FLAG_BLUETOOTH_ABS_VOLUME = 1 << 6; /** * Adjusting the volume was prevented due to silent mode, display a hint in the UI. * @hide */ public static final int FLAG_SHOW_SILENT_HINT = 1 << 7; /** * Indicates the volume call is for Hdmi Cec system audio volume * @hide */ public static final int FLAG_HDMI_SYSTEM_AUDIO_VOLUME = 1 << 8; /** * Indicates that this should only be handled if media is actively playing. * @hide */ public static final int FLAG_ACTIVE_MEDIA_ONLY = 1 << 9; /** * Like FLAG_SHOW_UI, but only dialog warnings and confirmations, no sliders. * @hide */ public static final int FLAG_SHOW_UI_WARNINGS = 1 << 10; /** * Adjusting the volume down from vibrated was prevented, display a hint in the UI. * @hide */ public static final int FLAG_SHOW_VIBRATE_HINT = 1 << 11; /** * Adjusting the volume due to a hardware key press. * @hide */ public static final int FLAG_FROM_KEY = 1 << 12; private static final String[] FLAG_NAMES = { "FLAG_SHOW_UI", "FLAG_ALLOW_RINGER_MODES", "FLAG_PLAY_SOUND", "FLAG_REMOVE_SOUND_AND_VIBRATE", "FLAG_VIBRATE", "FLAG_FIXED_VOLUME", "FLAG_BLUETOOTH_ABS_VOLUME", "FLAG_SHOW_SILENT_HINT", "FLAG_HDMI_SYSTEM_AUDIO_VOLUME", "FLAG_ACTIVE_MEDIA_ONLY", "FLAG_SHOW_UI_WARNINGS", "FLAG_SHOW_VIBRATE_HINT", "FLAG_FROM_KEY", }; /** @hide */ public static String flagsToString(int flags) { final StringBuilder sb = new StringBuilder(); for (int i = 0; i < FLAG_NAMES.length; i++) { final int flag = 1 << i; if ((flags & flag) != 0) { if (sb.length() > 0) { sb.append(','); } sb.append(FLAG_NAMES[i]); flags &= ~flag; } } if (flags != 0) { if (sb.length() > 0) { sb.append(','); } sb.append(flags); } return sb.toString(); } /** * Ringer mode that will be silent and will not vibrate. (This overrides the * vibrate setting.) * * @see #setRingerMode(int) * @see #getRingerMode() */ public static final int RINGER_MODE_SILENT = 0; /** * Ringer mode that will be silent and will vibrate. (This will cause the * phone ringer to always vibrate, but the notification vibrate to only * vibrate if set.) * * @see #setRingerMode(int) * @see #getRingerMode() */ public static final int RINGER_MODE_VIBRATE = 1; /** * Ringer mode that may be audible and may vibrate. It will be audible if * the volume before changing out of this mode was audible. It will vibrate * if the vibrate setting is on. * * @see #setRingerMode(int) * @see #getRingerMode() */ public static final int RINGER_MODE_NORMAL = 2; /** * Maximum valid ringer mode value. Values must start from 0 and be contiguous. * @hide */ public static final int RINGER_MODE_MAX = RINGER_MODE_NORMAL; /** * Vibrate type that corresponds to the ringer. * * @see #setVibrateSetting(int, int) * @see #getVibrateSetting(int) * @see #shouldVibrate(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public static final int VIBRATE_TYPE_RINGER = 0; /** * Vibrate type that corresponds to notifications. * * @see #setVibrateSetting(int, int) * @see #getVibrateSetting(int) * @see #shouldVibrate(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public static final int VIBRATE_TYPE_NOTIFICATION = 1; /** * Vibrate setting that suggests to never vibrate. * * @see #setVibrateSetting(int, int) * @see #getVibrateSetting(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public static final int VIBRATE_SETTING_OFF = 0; /** * Vibrate setting that suggests to vibrate when possible. * * @see #setVibrateSetting(int, int) * @see #getVibrateSetting(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public static final int VIBRATE_SETTING_ON = 1; /** * Vibrate setting that suggests to only vibrate when in the vibrate ringer * mode. * * @see #setVibrateSetting(int, int) * @see #getVibrateSetting(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public static final int VIBRATE_SETTING_ONLY_SILENT = 2; /** * Suggests using the default stream type. This may not be used in all * places a stream type is needed. */ public static final int USE_DEFAULT_STREAM_TYPE = Integer.MIN_VALUE; private static IAudioService sService; /** * @hide */ public AudioManager(Context context) { setContext(context); mUseVolumeKeySounds = getContext().getResources().getBoolean( com.android.internal.R.bool.config_useVolumeKeySounds); mUseFixedVolume = getContext().getResources().getBoolean( com.android.internal.R.bool.config_useFixedVolume); } private Context getContext() { if (mApplicationContext == null) { setContext(mOriginalContext); } if (mApplicationContext != null) { return mApplicationContext; } return mOriginalContext; } private void setContext(Context context) { mApplicationContext = context.getApplicationContext(); if (mApplicationContext != null) { mOriginalContext = null; } else { mOriginalContext = context; } } private static IAudioService getService() { if (sService != null) { return sService; } IBinder b = ServiceManager.getService(Context.AUDIO_SERVICE); sService = IAudioService.Stub.asInterface(b); return sService; } /** * Sends a simulated key event for a media button. * To simulate a key press, you must first send a KeyEvent built with a * {@link KeyEvent#ACTION_DOWN} action, then another event with the {@link KeyEvent#ACTION_UP} * action. * <p>The key event will be sent to the current media key event consumer which registered with * {@link AudioManager#registerMediaButtonEventReceiver(PendingIntent)}. * @param keyEvent a {@link KeyEvent} instance whose key code is one of * {@link KeyEvent#KEYCODE_MUTE}, * {@link KeyEvent#KEYCODE_HEADSETHOOK}, * {@link KeyEvent#KEYCODE_MEDIA_PLAY}, * {@link KeyEvent#KEYCODE_MEDIA_PAUSE}, * {@link KeyEvent#KEYCODE_MEDIA_PLAY_PAUSE}, * {@link KeyEvent#KEYCODE_MEDIA_STOP}, * {@link KeyEvent#KEYCODE_MEDIA_NEXT}, * {@link KeyEvent#KEYCODE_MEDIA_PREVIOUS}, * {@link KeyEvent#KEYCODE_MEDIA_REWIND}, * {@link KeyEvent#KEYCODE_MEDIA_RECORD}, * {@link KeyEvent#KEYCODE_MEDIA_FAST_FORWARD}, * {@link KeyEvent#KEYCODE_MEDIA_CLOSE}, * {@link KeyEvent#KEYCODE_MEDIA_EJECT}, * or {@link KeyEvent#KEYCODE_MEDIA_AUDIO_TRACK}. */ public void dispatchMediaKeyEvent(KeyEvent keyEvent) { MediaSessionLegacyHelper helper = MediaSessionLegacyHelper.getHelper(getContext()); helper.sendMediaButtonEvent(keyEvent, false); } /** * @hide */ public void preDispatchKeyEvent(KeyEvent event, int stream) { /* * If the user hits another key within the play sound delay, then * cancel the sound */ int keyCode = event.getKeyCode(); if (keyCode != KeyEvent.KEYCODE_VOLUME_DOWN && keyCode != KeyEvent.KEYCODE_VOLUME_UP && keyCode != KeyEvent.KEYCODE_VOLUME_MUTE && mVolumeKeyUpTime + AudioSystem.PLAY_SOUND_DELAY > SystemClock.uptimeMillis()) { /* * The user has hit another key during the delay (e.g., 300ms) * since the last volume key up, so cancel any sounds. */ adjustSuggestedStreamVolume(ADJUST_SAME, stream, AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE); } } /** * @hide */ public void handleKeyDown(KeyEvent event, int stream) { int keyCode = event.getKeyCode(); switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: case KeyEvent.KEYCODE_VOLUME_DOWN: /* * Adjust the volume in on key down since it is more * responsive to the user. */ adjustSuggestedStreamVolume( keyCode == KeyEvent.KEYCODE_VOLUME_UP ? ADJUST_RAISE : ADJUST_LOWER, stream, FLAG_SHOW_UI | FLAG_VIBRATE); break; case KeyEvent.KEYCODE_VOLUME_MUTE: if (event.getRepeatCount() == 0) { MediaSessionLegacyHelper.getHelper(getContext()) .sendVolumeKeyEvent(event, false); } break; } } /** * @hide */ public void handleKeyUp(KeyEvent event, int stream) { int keyCode = event.getKeyCode(); switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: case KeyEvent.KEYCODE_VOLUME_DOWN: /* * Play a sound. This is done on key up since we don't want the * sound to play when a user holds down volume down to mute. */ if (mUseVolumeKeySounds) { adjustSuggestedStreamVolume( ADJUST_SAME, stream, FLAG_PLAY_SOUND); } mVolumeKeyUpTime = SystemClock.uptimeMillis(); break; case KeyEvent.KEYCODE_VOLUME_MUTE: MediaSessionLegacyHelper.getHelper(getContext()) .sendVolumeKeyEvent(event, false); break; } } /** * Indicates if the device implements a fixed volume policy. * <p>Some devices may not have volume control and may operate at a fixed volume, * and may not enable muting or changing the volume of audio streams. * This method will return true on such devices. * <p>The following APIs have no effect when volume is fixed: * <ul> * <li> {@link #adjustVolume(int, int)} * <li> {@link #adjustSuggestedStreamVolume(int, int, int)} * <li> {@link #adjustStreamVolume(int, int, int)} * <li> {@link #setStreamVolume(int, int, int)} * <li> {@link #setRingerMode(int)} * <li> {@link #setStreamSolo(int, boolean)} * <li> {@link #setStreamMute(int, boolean)} * </ul> */ public boolean isVolumeFixed() { return mUseFixedVolume; } /** * Adjusts the volume of a particular stream by one step in a direction. * <p> * This method should only be used by applications that replace the platform-wide * management of audio settings or the main telephony application. * * @param streamType The stream type to adjust. One of {@link #STREAM_VOICE_CALL}, * {@link #STREAM_SYSTEM}, {@link #STREAM_RING}, {@link #STREAM_MUSIC} or * {@link #STREAM_ALARM} * @param direction The direction to adjust the volume. One of * {@link #ADJUST_LOWER}, {@link #ADJUST_RAISE}, or * {@link #ADJUST_SAME}. * @param flags One or more flags. * @see #adjustVolume(int, int) * @see #setStreamVolume(int, int, int) */ public void adjustStreamVolume(int streamType, int direction, int flags) { IAudioService service = getService(); try { service.adjustStreamVolume(streamType, direction, flags, getContext().getOpPackageName()); } catch (RemoteException e) { Log.e(TAG, "Dead object in adjustStreamVolume", e); } } /** * Adjusts the volume of the most relevant stream. For example, if a call is * active, it will have the highest priority regardless of if the in-call * screen is showing. Another example, if music is playing in the background * and a call is not active, the music stream will be adjusted. * <p> * This method should only be used by applications that replace the * platform-wide management of audio settings or the main telephony * application. * <p> * This method has no effect if the device implements a fixed volume policy * as indicated by {@link #isVolumeFixed()}. * * @param direction The direction to adjust the volume. One of * {@link #ADJUST_LOWER}, {@link #ADJUST_RAISE}, * {@link #ADJUST_SAME}, {@link #ADJUST_MUTE}, * {@link #ADJUST_UNMUTE}, or {@link #ADJUST_TOGGLE_MUTE}. * @param flags One or more flags. * @see #adjustSuggestedStreamVolume(int, int, int) * @see #adjustStreamVolume(int, int, int) * @see #setStreamVolume(int, int, int) * @see #isVolumeFixed() */ public void adjustVolume(int direction, int flags) { MediaSessionLegacyHelper helper = MediaSessionLegacyHelper.getHelper(getContext()); helper.sendAdjustVolumeBy(USE_DEFAULT_STREAM_TYPE, direction, flags); } /** * Adjusts the volume of the most relevant stream, or the given fallback * stream. * <p> * This method should only be used by applications that replace the * platform-wide management of audio settings or the main telephony * application. * <p> * This method has no effect if the device implements a fixed volume policy * as indicated by {@link #isVolumeFixed()}. * * @param direction The direction to adjust the volume. One of * {@link #ADJUST_LOWER}, {@link #ADJUST_RAISE}, * {@link #ADJUST_SAME}, {@link #ADJUST_MUTE}, * {@link #ADJUST_UNMUTE}, or {@link #ADJUST_TOGGLE_MUTE}. * @param suggestedStreamType The stream type that will be used if there * isn't a relevant stream. {@link #USE_DEFAULT_STREAM_TYPE} is * valid here. * @param flags One or more flags. * @see #adjustVolume(int, int) * @see #adjustStreamVolume(int, int, int) * @see #setStreamVolume(int, int, int) * @see #isVolumeFixed() */ public void adjustSuggestedStreamVolume(int direction, int suggestedStreamType, int flags) { MediaSessionLegacyHelper helper = MediaSessionLegacyHelper.getHelper(getContext()); helper.sendAdjustVolumeBy(suggestedStreamType, direction, flags); } /** @hide */ public void setMasterMute(boolean mute, int flags) { IAudioService service = getService(); try { service.setMasterMute(mute, flags, getContext().getOpPackageName(), UserHandle.getCallingUserId()); } catch (RemoteException e) { Log.e(TAG, "Dead object in setMasterMute", e); } } /** * Returns the current ringtone mode. * * @return The current ringtone mode, one of {@link #RINGER_MODE_NORMAL}, * {@link #RINGER_MODE_SILENT}, or {@link #RINGER_MODE_VIBRATE}. * @see #setRingerMode(int) */ public int getRingerMode() { IAudioService service = getService(); try { return service.getRingerModeExternal(); } catch (RemoteException e) { Log.e(TAG, "Dead object in getRingerMode", e); return RINGER_MODE_NORMAL; } } /** * Checks valid ringer mode values. * * @return true if the ringer mode indicated is valid, false otherwise. * * @see #setRingerMode(int) * @hide */ public static boolean isValidRingerMode(int ringerMode) { if (ringerMode < 0 || ringerMode > RINGER_MODE_MAX) { return false; } IAudioService service = getService(); try { return service.isValidRingerMode(ringerMode); } catch (RemoteException e) { Log.e(TAG, "Dead object in isValidRingerMode", e); return false; } } /** * Returns the maximum volume index for a particular stream. * * @param streamType The stream type whose maximum volume index is returned. * @return The maximum valid volume index for the stream. * @see #getStreamVolume(int) */ public int getStreamMaxVolume(int streamType) { IAudioService service = getService(); try { return service.getStreamMaxVolume(streamType); } catch (RemoteException e) { Log.e(TAG, "Dead object in getStreamMaxVolume", e); return 0; } } /** * Returns the minimum volume index for a particular stream. * * @param streamType The stream type whose minimum volume index is returned. * @return The minimum valid volume index for the stream. * @see #getStreamVolume(int) * @hide */ public int getStreamMinVolume(int streamType) { IAudioService service = getService(); try { return service.getStreamMinVolume(streamType); } catch (RemoteException e) { Log.e(TAG, "Dead object in getStreamMinVolume", e); return 0; } } /** * Returns the current volume index for a particular stream. * * @param streamType The stream type whose volume index is returned. * @return The current volume index for the stream. * @see #getStreamMaxVolume(int) * @see #setStreamVolume(int, int, int) */ public int getStreamVolume(int streamType) { IAudioService service = getService(); try { return service.getStreamVolume(streamType); } catch (RemoteException e) { Log.e(TAG, "Dead object in getStreamVolume", e); return 0; } } /** * Get last audible volume before stream was muted. * * @hide */ public int getLastAudibleStreamVolume(int streamType) { IAudioService service = getService(); try { return service.getLastAudibleStreamVolume(streamType); } catch (RemoteException e) { Log.e(TAG, "Dead object in getLastAudibleStreamVolume", e); return 0; } } /** * Get the stream type whose volume is driving the UI sounds volume. * UI sounds are screen lock/unlock, camera shutter, key clicks... * It is assumed that this stream type is also tied to ringer mode changes. * @hide */ public int getUiSoundsStreamType() { IAudioService service = getService(); try { return service.getUiSoundsStreamType(); } catch (RemoteException e) { Log.e(TAG, "Dead object in getUiSoundsStreamType", e); return STREAM_RING; } } /** * Sets the ringer mode. * <p> * Silent mode will mute the volume and will not vibrate. Vibrate mode will * mute the volume and vibrate. Normal mode will be audible and may vibrate * according to user settings. * <p>This method has no effect if the device implements a fixed volume policy * as indicated by {@link #isVolumeFixed()}. * @param ringerMode The ringer mode, one of {@link #RINGER_MODE_NORMAL}, * {@link #RINGER_MODE_SILENT}, or {@link #RINGER_MODE_VIBRATE}. * @see #getRingerMode() * @see #isVolumeFixed() */ public void setRingerMode(int ringerMode) { if (!isValidRingerMode(ringerMode)) { return; } IAudioService service = getService(); try { service.setRingerModeExternal(ringerMode, getContext().getOpPackageName()); } catch (RemoteException e) { Log.e(TAG, "Dead object in setRingerMode", e); } } /** * Sets the volume index for a particular stream. * <p>This method has no effect if the device implements a fixed volume policy * as indicated by {@link #isVolumeFixed()}. * @param streamType The stream whose volume index should be set. * @param index The volume index to set. See * {@link #getStreamMaxVolume(int)} for the largest valid value. * @param flags One or more flags. * @see #getStreamMaxVolume(int) * @see #getStreamVolume(int) * @see #isVolumeFixed() */ public void setStreamVolume(int streamType, int index, int flags) { IAudioService service = getService(); try { service.setStreamVolume(streamType, index, flags, getContext().getOpPackageName()); } catch (RemoteException e) { Log.e(TAG, "Dead object in setStreamVolume", e); } } /** * Solo or unsolo a particular stream. * <p> * Do not use. This method has been deprecated and is now a no-op. * {@link #requestAudioFocus} should be used for exclusive audio playback. * * @param streamType The stream to be soloed/unsoloed. * @param state The required solo state: true for solo ON, false for solo * OFF * @see #isVolumeFixed() * @deprecated Do not use. If you need exclusive audio playback use * {@link #requestAudioFocus}. */ @Deprecated public void setStreamSolo(int streamType, boolean state) { Log.w(TAG, "setStreamSolo has been deprecated. Do not use."); } /** * Mute or unmute an audio stream. * <p> * This method should only be used by applications that replace the * platform-wide management of audio settings or the main telephony * application. * <p> * This method has no effect if the device implements a fixed volume policy * as indicated by {@link #isVolumeFixed()}. * <p> * This method was deprecated in API level 22. Prior to API level 22 this * method had significantly different behavior and should be used carefully. * The following applies only to pre-22 platforms: * <ul> * <li>The mute command is protected against client process death: if a * process with an active mute request on a stream dies, this stream will be * unmuted automatically.</li> * <li>The mute requests for a given stream are cumulative: the AudioManager * can receive several mute requests from one or more clients and the stream * will be unmuted only when the same number of unmute requests are * received.</li> * <li>For a better user experience, applications MUST unmute a muted stream * in onPause() and mute is again in onResume() if appropriate.</li> * </ul> * * @param streamType The stream to be muted/unmuted. * @param state The required mute state: true for mute ON, false for mute * OFF * @see #isVolumeFixed() * @deprecated Use {@link #adjustStreamVolume(int, int, int)} with * {@link #ADJUST_MUTE} or {@link #ADJUST_UNMUTE} instead. */ @Deprecated public void setStreamMute(int streamType, boolean state) { Log.w(TAG, "setStreamMute is deprecated. adjustStreamVolume should be used instead."); int direction = state ? ADJUST_MUTE : ADJUST_UNMUTE; if (streamType == AudioManager.USE_DEFAULT_STREAM_TYPE) { adjustSuggestedStreamVolume(direction, streamType, 0); } else { adjustStreamVolume(streamType, direction, 0); } } /** * Returns the current mute state for a particular stream. * * @param streamType The stream to get mute state for. * @return The mute state for the given stream. * @see #adjustStreamVolume(int, int, int) */ public boolean isStreamMute(int streamType) { IAudioService service = getService(); try { return service.isStreamMute(streamType); } catch (RemoteException e) { Log.e(TAG, "Dead object in isStreamMute", e); return false; } } /** * get master mute state. * * @hide */ public boolean isMasterMute() { IAudioService service = getService(); try { return service.isMasterMute(); } catch (RemoteException e) { Log.e(TAG, "Dead object in isMasterMute", e); return false; } } /** * forces the stream controlled by hard volume keys * specifying streamType == -1 releases control to the * logic. * * @hide */ public void forceVolumeControlStream(int streamType) { IAudioService service = getService(); try { service.forceVolumeControlStream(streamType, mICallBack); } catch (RemoteException e) { Log.e(TAG, "Dead object in forceVolumeControlStream", e); } } /** * Returns whether a particular type should vibrate according to user * settings and the current ringer mode. * <p> * This shouldn't be needed by most clients that use notifications to * vibrate. The notification manager will not vibrate if the policy doesn't * allow it, so the client should always set a vibrate pattern and let the * notification manager control whether or not to actually vibrate. * * @param vibrateType The type of vibrate. One of * {@link #VIBRATE_TYPE_NOTIFICATION} or * {@link #VIBRATE_TYPE_RINGER}. * @return Whether the type should vibrate at the instant this method is * called. * @see #setVibrateSetting(int, int) * @see #getVibrateSetting(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public boolean shouldVibrate(int vibrateType) { IAudioService service = getService(); try { return service.shouldVibrate(vibrateType); } catch (RemoteException e) { Log.e(TAG, "Dead object in shouldVibrate", e); return false; } } /** * Returns whether the user's vibrate setting for a vibrate type. * <p> * This shouldn't be needed by most clients that want to vibrate, instead * see {@link #shouldVibrate(int)}. * * @param vibrateType The type of vibrate. One of * {@link #VIBRATE_TYPE_NOTIFICATION} or * {@link #VIBRATE_TYPE_RINGER}. * @return The vibrate setting, one of {@link #VIBRATE_SETTING_ON}, * {@link #VIBRATE_SETTING_OFF}, or * {@link #VIBRATE_SETTING_ONLY_SILENT}. * @see #setVibrateSetting(int, int) * @see #shouldVibrate(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public int getVibrateSetting(int vibrateType) { IAudioService service = getService(); try { return service.getVibrateSetting(vibrateType); } catch (RemoteException e) { Log.e(TAG, "Dead object in getVibrateSetting", e); return VIBRATE_SETTING_OFF; } } /** * Sets the setting for when the vibrate type should vibrate. * <p> * This method should only be used by applications that replace the platform-wide * management of audio settings or the main telephony application. * * @param vibrateType The type of vibrate. One of * {@link #VIBRATE_TYPE_NOTIFICATION} or * {@link #VIBRATE_TYPE_RINGER}. * @param vibrateSetting The vibrate setting, one of * {@link #VIBRATE_SETTING_ON}, * {@link #VIBRATE_SETTING_OFF}, or * {@link #VIBRATE_SETTING_ONLY_SILENT}. * @see #getVibrateSetting(int) * @see #shouldVibrate(int) * @deprecated Applications should maintain their own vibrate policy based on * current ringer mode that can be queried via {@link #getRingerMode()}. */ public void setVibrateSetting(int vibrateType, int vibrateSetting) { IAudioService service = getService(); try { service.setVibrateSetting(vibrateType, vibrateSetting); } catch (RemoteException e) { Log.e(TAG, "Dead object in setVibrateSetting", e); } } /** * Sets the speakerphone on or off. * <p> * This method should only be used by applications that replace the platform-wide * management of audio settings or the main telephony application. * * @param on set <var>true</var> to turn on speakerphone; * <var>false</var> to turn it off */ public void setSpeakerphoneOn(boolean on){ IAudioService service = getService(); try { service.setSpeakerphoneOn(on); } catch (RemoteException e) { Log.e(TAG, "Dead object in setSpeakerphoneOn", e); } } /** * Checks whether the speakerphone is on or off. * * @return true if speakerphone is on, false if it's off */ public boolean isSpeakerphoneOn() { IAudioService service = getService(); try { return service.isSpeakerphoneOn(); } catch (RemoteException e) { Log.e(TAG, "Dead object in isSpeakerphoneOn", e); return false; } } //==================================================================== // Bluetooth SCO control /** * Sticky broadcast intent action indicating that the bluetoooth SCO audio * connection state has changed. The intent contains on extra {@link #EXTRA_SCO_AUDIO_STATE} * indicating the new state which is either {@link #SCO_AUDIO_STATE_DISCONNECTED} * or {@link #SCO_AUDIO_STATE_CONNECTED} * * @see #startBluetoothSco() * @deprecated Use {@link #ACTION_SCO_AUDIO_STATE_UPDATED} instead */ @Deprecated @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_SCO_AUDIO_STATE_CHANGED = "android.media.SCO_AUDIO_STATE_CHANGED"; /** * Sticky broadcast intent action indicating that the bluetoooth SCO audio * connection state has been updated. * <p>This intent has two extras: * <ul> * <li> {@link #EXTRA_SCO_AUDIO_STATE} - The new SCO audio state. </li> * <li> {@link #EXTRA_SCO_AUDIO_PREVIOUS_STATE}- The previous SCO audio state. </li> * </ul> * <p> EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE can be any of: * <ul> * <li> {@link #SCO_AUDIO_STATE_DISCONNECTED}, </li> * <li> {@link #SCO_AUDIO_STATE_CONNECTING} or </li> * <li> {@link #SCO_AUDIO_STATE_CONNECTED}, </li> * </ul> * @see #startBluetoothSco() */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_SCO_AUDIO_STATE_UPDATED = "android.media.ACTION_SCO_AUDIO_STATE_UPDATED"; /** * Extra for intent {@link #ACTION_SCO_AUDIO_STATE_CHANGED} or * {@link #ACTION_SCO_AUDIO_STATE_UPDATED} containing the new bluetooth SCO connection state. */ public static final String EXTRA_SCO_AUDIO_STATE = "android.media.extra.SCO_AUDIO_STATE"; /** * Extra for intent {@link #ACTION_SCO_AUDIO_STATE_UPDATED} containing the previous * bluetooth SCO connection state. */ public static final String EXTRA_SCO_AUDIO_PREVIOUS_STATE = "android.media.extra.SCO_AUDIO_PREVIOUS_STATE"; /** * Value for extra EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE * indicating that the SCO audio channel is not established */ public static final int SCO_AUDIO_STATE_DISCONNECTED = 0; /** * Value for extra {@link #EXTRA_SCO_AUDIO_STATE} or {@link #EXTRA_SCO_AUDIO_PREVIOUS_STATE} * indicating that the SCO audio channel is established */ public static final int SCO_AUDIO_STATE_CONNECTED = 1; /** * Value for extra EXTRA_SCO_AUDIO_STATE or EXTRA_SCO_AUDIO_PREVIOUS_STATE * indicating that the SCO audio channel is being established */ public static final int SCO_AUDIO_STATE_CONNECTING = 2; /** * Value for extra EXTRA_SCO_AUDIO_STATE indicating that * there was an error trying to obtain the state */ public static final int SCO_AUDIO_STATE_ERROR = -1; /** * Indicates if current platform supports use of SCO for off call use cases. * Application wanted to use bluetooth SCO audio when the phone is not in call * must first call this method to make sure that the platform supports this * feature. * @return true if bluetooth SCO can be used for audio when not in call * false otherwise * @see #startBluetoothSco() */ public boolean isBluetoothScoAvailableOffCall() { return getContext().getResources().getBoolean( com.android.internal.R.bool.config_bluetooth_sco_off_call); } /** * Start bluetooth SCO audio connection. * <p>Requires Permission: * {@link android.Manifest.permission#MODIFY_AUDIO_SETTINGS}. * <p>This method can be used by applications wanting to send and received audio * to/from a bluetooth SCO headset while the phone is not in call. * <p>As the SCO connection establishment can take several seconds, * applications should not rely on the connection to be available when the method * returns but instead register to receive the intent {@link #ACTION_SCO_AUDIO_STATE_UPDATED} * and wait for the state to be {@link #SCO_AUDIO_STATE_CONNECTED}. * <p>As the ACTION_SCO_AUDIO_STATE_UPDATED intent is sticky, the application can check the SCO * audio state before calling startBluetoothSco() by reading the intent returned by the receiver * registration. If the state is already CONNECTED, no state change will be received via the * intent after calling startBluetoothSco(). It is however useful to call startBluetoothSco() * so that the connection stays active in case the current initiator stops the connection. * <p>Unless the connection is already active as described above, the state will always * transition from DISCONNECTED to CONNECTING and then either to CONNECTED if the connection * succeeds or back to DISCONNECTED if the connection fails (e.g no headset is connected). * <p>When finished with the SCO connection or if the establishment fails, the application must * call {@link #stopBluetoothSco()} to clear the request and turn down the bluetooth connection. * <p>Even if a SCO connection is established, the following restrictions apply on audio * output streams so that they can be routed to SCO headset: * <ul> * <li> the stream type must be {@link #STREAM_VOICE_CALL} </li> * <li> the format must be mono </li> * <li> the sampling must be 16kHz or 8kHz </li> * </ul> * <p>The following restrictions apply on input streams: * <ul> * <li> the format must be mono </li> * <li> the sampling must be 8kHz </li> * </ul> * <p>Note that the phone application always has the priority on the usage of the SCO * connection for telephony. If this method is called while the phone is in call * it will be ignored. Similarly, if a call is received or sent while an application * is using the SCO connection, the connection will be lost for the application and NOT * returned automatically when the call ends. * <p>NOTE: up to and including API version * {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR1}, this method initiates a virtual * voice call to the bluetooth headset. * After API version {@link android.os.Build.VERSION_CODES#JELLY_BEAN_MR2} only a raw SCO audio * connection is established. * @see #stopBluetoothSco() * @see #ACTION_SCO_AUDIO_STATE_UPDATED */ public void startBluetoothSco(){ IAudioService service = getService(); try { service.startBluetoothSco(mICallBack, getContext().getApplicationInfo().targetSdkVersion); } catch (RemoteException e) { Log.e(TAG, "Dead object in startBluetoothSco", e); } } /** * @hide * Start bluetooth SCO audio connection in virtual call mode. * <p>Requires Permission: * {@link android.Manifest.permission#MODIFY_AUDIO_SETTINGS}. * <p>Similar to {@link #startBluetoothSco()} with explicit selection of virtual call mode. * Telephony and communication applications (VoIP, Video Chat) should preferably select * virtual call mode. * Applications using voice input for search or commands should first try raw audio connection * with {@link #startBluetoothSco()} and fall back to startBluetoothScoVirtualCall() in case of * failure. * @see #startBluetoothSco() * @see #stopBluetoothSco() * @see #ACTION_SCO_AUDIO_STATE_UPDATED */ public void startBluetoothScoVirtualCall() { IAudioService service = getService(); try { service.startBluetoothScoVirtualCall(mICallBack); } catch (RemoteException e) { Log.e(TAG, "Dead object in startBluetoothScoVirtualCall", e); } } /** * Stop bluetooth SCO audio connection. * <p>Requires Permission: * {@link android.Manifest.permission#MODIFY_AUDIO_SETTINGS}. * <p>This method must be called by applications having requested the use of * bluetooth SCO audio with {@link #startBluetoothSco()} when finished with the SCO * connection or if connection fails. * @see #startBluetoothSco() */ // Also used for connections started with {@link #startBluetoothScoVirtualCall()} public void stopBluetoothSco(){ IAudioService service = getService(); try { service.stopBluetoothSco(mICallBack); } catch (RemoteException e) { Log.e(TAG, "Dead object in stopBluetoothSco", e); } } /** * Request use of Bluetooth SCO headset for communications. * <p> * This method should only be used by applications that replace the platform-wide * management of audio settings or the main telephony application. * * @param on set <var>true</var> to use bluetooth SCO for communications; * <var>false</var> to not use bluetooth SCO for communications */ public void setBluetoothScoOn(boolean on){ IAudioService service = getService(); try { service.setBluetoothScoOn(on); } catch (RemoteException e) { Log.e(TAG, "Dead object in setBluetoothScoOn", e); } } /** * Checks whether communications use Bluetooth SCO. * * @return true if SCO is used for communications; * false if otherwise */ public boolean isBluetoothScoOn() { IAudioService service = getService(); try { return service.isBluetoothScoOn(); } catch (RemoteException e) { Log.e(TAG, "Dead object in isBluetoothScoOn", e); return false; } } /** * @param on set <var>true</var> to route A2DP audio to/from Bluetooth * headset; <var>false</var> disable A2DP audio * @deprecated Do not use. */ @Deprecated public void setBluetoothA2dpOn(boolean on){ } /** * Checks whether A2DP audio routing to the Bluetooth headset is on or off. * * @return true if A2DP audio is being routed to/from Bluetooth headset; * false if otherwise */ public boolean isBluetoothA2dpOn() { if (AudioSystem.getDeviceConnectionState(DEVICE_OUT_BLUETOOTH_A2DP,"") == AudioSystem.DEVICE_STATE_UNAVAILABLE) { return false; } else { return true; } } /** * Sets audio routing to the wired headset on or off. * * @param on set <var>true</var> to route audio to/from wired * headset; <var>false</var> disable wired headset audio * @deprecated Do not use. */ @Deprecated public void setWiredHeadsetOn(boolean on){ } /** * Checks whether a wired headset is connected or not. * <p>This is not a valid indication that audio playback is * actually over the wired headset as audio routing depends on other conditions. * * @return true if a wired headset is connected. * false if otherwise * @deprecated Use only to check is a headset is connected or not. */ public boolean isWiredHeadsetOn() { if (AudioSystem.getDeviceConnectionState(DEVICE_OUT_WIRED_HEADSET,"") == AudioSystem.DEVICE_STATE_UNAVAILABLE && AudioSystem.getDeviceConnectionState(DEVICE_OUT_WIRED_HEADPHONE,"") == AudioSystem.DEVICE_STATE_UNAVAILABLE) { return false; } else { return true; } } /** * Sets the microphone mute on or off. * <p> * This method should only be used by applications that replace the platform-wide * management of audio settings or the main telephony application. * * @param on set <var>true</var> to mute the microphone; * <var>false</var> to turn mute off */ public void setMicrophoneMute(boolean on) { IAudioService service = getService(); try { service.setMicrophoneMute(on, getContext().getOpPackageName(), UserHandle.getCallingUserId()); } catch (RemoteException e) { Log.e(TAG, "Dead object in setMicrophoneMute", e); } } /** * Checks whether the microphone mute is on or off. * * @return true if microphone is muted, false if it's not */ public boolean isMicrophoneMute() { return AudioSystem.isMicrophoneMuted(); } /** * Sets the audio mode. * <p> * The audio mode encompasses audio routing AND the behavior of * the telephony layer. Therefore this method should only be used by applications that * replace the platform-wide management of audio settings or the main telephony application. * In particular, the {@link #MODE_IN_CALL} mode should only be used by the telephony * application when it places a phone call, as it will cause signals from the radio layer * to feed the platform mixer. * * @param mode the requested audio mode ({@link #MODE_NORMAL}, {@link #MODE_RINGTONE}, * {@link #MODE_IN_CALL} or {@link #MODE_IN_COMMUNICATION}). * Informs the HAL about the current audio state so that * it can route the audio appropriately. */ public void setMode(int mode) { IAudioService service = getService(); try { service.setMode(mode, mICallBack, mApplicationContext.getOpPackageName()); } catch (RemoteException e) { Log.e(TAG, "Dead object in setMode", e); } } /** * Returns the current audio mode. * * @return the current audio mode ({@link #MODE_NORMAL}, {@link #MODE_RINGTONE}, * {@link #MODE_IN_CALL} or {@link #MODE_IN_COMMUNICATION}). * Returns the current current audio state from the HAL. */ public int getMode() { IAudioService service = getService(); try { return service.getMode(); } catch (RemoteException e) { Log.e(TAG, "Dead object in getMode", e); return MODE_INVALID; } } /* modes for setMode/getMode/setRoute/getRoute */ /** * Audio harware modes. */ /** * Invalid audio mode. */ public static final int MODE_INVALID = AudioSystem.MODE_INVALID; /** * Current audio mode. Used to apply audio routing to current mode. */ public static final int MODE_CURRENT = AudioSystem.MODE_CURRENT; /** * Normal audio mode: not ringing and no call established. */ public static final int MODE_NORMAL = AudioSystem.MODE_NORMAL; /** * Ringing audio mode. An incoming is being signaled. */ public static final int MODE_RINGTONE = AudioSystem.MODE_RINGTONE; /** * In call audio mode. A telephony call is established. */ public static final int MODE_IN_CALL = AudioSystem.MODE_IN_CALL; /** * In communication audio mode. An audio/video chat or VoIP call is established. */ public static final int MODE_IN_COMMUNICATION = AudioSystem.MODE_IN_COMMUNICATION; /* Routing bits for setRouting/getRouting API */ /** * Routing audio output to earpiece * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_EARPIECE = AudioSystem.ROUTE_EARPIECE; /** * Routing audio output to speaker * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_SPEAKER = AudioSystem.ROUTE_SPEAKER; /** * @deprecated use {@link #ROUTE_BLUETOOTH_SCO} * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_BLUETOOTH = AudioSystem.ROUTE_BLUETOOTH_SCO; /** * Routing audio output to bluetooth SCO * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_BLUETOOTH_SCO = AudioSystem.ROUTE_BLUETOOTH_SCO; /** * Routing audio output to headset * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_HEADSET = AudioSystem.ROUTE_HEADSET; /** * Routing audio output to bluetooth A2DP * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_BLUETOOTH_A2DP = AudioSystem.ROUTE_BLUETOOTH_A2DP; /** * Used for mask parameter of {@link #setRouting(int,int,int)}. * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public static final int ROUTE_ALL = AudioSystem.ROUTE_ALL; /** * Sets the audio routing for a specified mode * * @param mode audio mode to change route. E.g., MODE_RINGTONE. * @param routes bit vector of routes requested, created from one or * more of ROUTE_xxx types. Set bits indicate that route should be on * @param mask bit vector of routes to change, created from one or more of * ROUTE_xxx types. Unset bits indicate the route should be left unchanged * * @deprecated Do not set audio routing directly, use setSpeakerphoneOn(), * setBluetoothScoOn() methods instead. */ @Deprecated public void setRouting(int mode, int routes, int mask) { } /** * Returns the current audio routing bit vector for a specified mode. * * @param mode audio mode to get route (e.g., MODE_RINGTONE) * @return an audio route bit vector that can be compared with ROUTE_xxx * bits * @deprecated Do not query audio routing directly, use isSpeakerphoneOn(), * isBluetoothScoOn(), isBluetoothA2dpOn() and isWiredHeadsetOn() methods instead. */ @Deprecated public int getRouting(int mode) { return -1; } /** * Checks whether any music is active. * * @return true if any music tracks are active. */ public boolean isMusicActive() { return AudioSystem.isStreamActive(STREAM_MUSIC, 0); } /** * @hide * Checks whether any music or media is actively playing on a remote device (e.g. wireless * display). Note that BT audio sinks are not considered remote devices. * @return true if {@link AudioManager#STREAM_MUSIC} is active on a remote device */ public boolean isMusicActiveRemotely() { return AudioSystem.isStreamActiveRemotely(STREAM_MUSIC, 0); } /** * @hide * Checks whether the current audio focus is exclusive. * @return true if the top of the audio focus stack requested focus * with {@link #AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE} */ public boolean isAudioFocusExclusive() { IAudioService service = getService(); try { return service.getCurrentAudioFocus() == AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE; } catch (RemoteException e) { Log.e(TAG, "Dead object in isAudioFocusExclusive()", e); return false; } } /** * Return a new audio session identifier not associated with any player or effect. * An audio session identifier is a system wide unique identifier for a set of audio streams * (one or more mixed together). * <p>The primary use of the audio session ID is to associate audio effects to audio players, * such as {@link MediaPlayer} or {@link AudioTrack}: all audio effects sharing the same audio * session ID will be applied to the mixed audio content of the players that share the same * audio session. * <p>This method can for instance be used when creating one of the * {@link android.media.audiofx.AudioEffect} objects to define the audio session of the effect, * or to specify a session for a speech synthesis utterance * in {@link android.speech.tts.TextToSpeech.Engine}. * @return a new unclaimed and unused audio session identifier, or {@link #ERROR} when the * system failed to generate a new session, a condition in which audio playback or recording * will subsequently fail as well. */ public int generateAudioSessionId() { int session = AudioSystem.newAudioSessionId(); if (session > 0) { return session; } else { Log.e(TAG, "Failure to generate a new audio session ID"); return ERROR; } } /** * A special audio session ID to indicate that the audio session ID isn't known and the * framework should generate a new value. This can be used when building a new * {@link AudioTrack} instance with * {@link AudioTrack#AudioTrack(AudioAttributes, AudioFormat, int, int, int)}. */ public static final int AUDIO_SESSION_ID_GENERATE = AudioSystem.AUDIO_SESSION_ALLOCATE; /* * Sets a generic audio configuration parameter. The use of these parameters * are platform dependant, see libaudio * * ** Temporary interface - DO NOT USE * * TODO: Replace with a more generic key:value get/set mechanism * * param key name of parameter to set. Must not be null. * param value value of parameter. Must not be null. */ /** * @hide * @deprecated Use {@link #setParameters(String)} instead */ @Deprecated public void setParameter(String key, String value) { setParameters(key+"="+value); } /** * Sets a variable number of parameter values to audio hardware. * * @param keyValuePairs list of parameters key value pairs in the form: * key1=value1;key2=value2;... * */ public void setParameters(String keyValuePairs) { AudioSystem.setParameters(keyValuePairs); } /** * Gets a variable number of parameter values from audio hardware. * * @param keys list of parameters * @return list of parameters key value pairs in the form: * key1=value1;key2=value2;... */ public String getParameters(String keys) { return AudioSystem.getParameters(keys); } /* Sound effect identifiers */ /** * Keyboard and direction pad click sound * @see #playSoundEffect(int) */ public static final int FX_KEY_CLICK = 0; /** * Focus has moved up * @see #playSoundEffect(int) */ public static final int FX_FOCUS_NAVIGATION_UP = 1; /** * Focus has moved down * @see #playSoundEffect(int) */ public static final int FX_FOCUS_NAVIGATION_DOWN = 2; /** * Focus has moved left * @see #playSoundEffect(int) */ public static final int FX_FOCUS_NAVIGATION_LEFT = 3; /** * Focus has moved right * @see #playSoundEffect(int) */ public static final int FX_FOCUS_NAVIGATION_RIGHT = 4; /** * IME standard keypress sound * @see #playSoundEffect(int) */ public static final int FX_KEYPRESS_STANDARD = 5; /** * IME spacebar keypress sound * @see #playSoundEffect(int) */ public static final int FX_KEYPRESS_SPACEBAR = 6; /** * IME delete keypress sound * @see #playSoundEffect(int) */ public static final int FX_KEYPRESS_DELETE = 7; /** * IME return_keypress sound * @see #playSoundEffect(int) */ public static final int FX_KEYPRESS_RETURN = 8; /** * Invalid keypress sound * @see #playSoundEffect(int) */ public static final int FX_KEYPRESS_INVALID = 9; /** * @hide Number of sound effects */ public static final int NUM_SOUND_EFFECTS = 10; /** * Plays a sound effect (Key clicks, lid open/close...) * @param effectType The type of sound effect. One of * {@link #FX_KEY_CLICK}, * {@link #FX_FOCUS_NAVIGATION_UP}, * {@link #FX_FOCUS_NAVIGATION_DOWN}, * {@link #FX_FOCUS_NAVIGATION_LEFT}, * {@link #FX_FOCUS_NAVIGATION_RIGHT}, * {@link #FX_KEYPRESS_STANDARD}, * {@link #FX_KEYPRESS_SPACEBAR}, * {@link #FX_KEYPRESS_DELETE}, * {@link #FX_KEYPRESS_RETURN}, * {@link #FX_KEYPRESS_INVALID}, * NOTE: This version uses the UI settings to determine * whether sounds are heard or not. */ public void playSoundEffect(int effectType) { if (effectType < 0 || effectType >= NUM_SOUND_EFFECTS) { return; } if (!querySoundEffectsEnabled(Process.myUserHandle().getIdentifier())) { return; } IAudioService service = getService(); try { service.playSoundEffect(effectType); } catch (RemoteException e) { Log.e(TAG, "Dead object in playSoundEffect"+e); } } /** * Plays a sound effect (Key clicks, lid open/close...) * @param effectType The type of sound effect. One of * {@link #FX_KEY_CLICK}, * {@link #FX_FOCUS_NAVIGATION_UP}, * {@link #FX_FOCUS_NAVIGATION_DOWN}, * {@link #FX_FOCUS_NAVIGATION_LEFT}, * {@link #FX_FOCUS_NAVIGATION_RIGHT}, * {@link #FX_KEYPRESS_STANDARD}, * {@link #FX_KEYPRESS_SPACEBAR}, * {@link #FX_KEYPRESS_DELETE}, * {@link #FX_KEYPRESS_RETURN}, * {@link #FX_KEYPRESS_INVALID}, * @param userId The current user to pull sound settings from * NOTE: This version uses the UI settings to determine * whether sounds are heard or not. * @hide */ public void playSoundEffect(int effectType, int userId) { if (effectType < 0 || effectType >= NUM_SOUND_EFFECTS) { return; } if (!querySoundEffectsEnabled(userId)) { return; } IAudioService service = getService(); try { service.playSoundEffect(effectType); } catch (RemoteException e) { Log.e(TAG, "Dead object in playSoundEffect"+e); } } /** * Plays a sound effect (Key clicks, lid open/close...) * @param effectType The type of sound effect. One of * {@link #FX_KEY_CLICK}, * {@link #FX_FOCUS_NAVIGATION_UP}, * {@link #FX_FOCUS_NAVIGATION_DOWN}, * {@link #FX_FOCUS_NAVIGATION_LEFT}, * {@link #FX_FOCUS_NAVIGATION_RIGHT}, * {@link #FX_KEYPRESS_STANDARD}, * {@link #FX_KEYPRESS_SPACEBAR}, * {@link #FX_KEYPRESS_DELETE}, * {@link #FX_KEYPRESS_RETURN}, * {@link #FX_KEYPRESS_INVALID}, * @param volume Sound effect volume. * The volume value is a raw scalar so UI controls should be scaled logarithmically. * If a volume of -1 is specified, the AudioManager.STREAM_MUSIC stream volume minus 3dB will be used. * NOTE: This version is for applications that have their own * settings panel for enabling and controlling volume. */ public void playSoundEffect(int effectType, float volume) { if (effectType < 0 || effectType >= NUM_SOUND_EFFECTS) { return; } IAudioService service = getService(); try { service.playSoundEffectVolume(effectType, volume); } catch (RemoteException e) { Log.e(TAG, "Dead object in playSoundEffect"+e); } } /** * Settings has an in memory cache, so this is fast. */ private boolean querySoundEffectsEnabled(int user) { return Settings.System.getIntForUser(getContext().getContentResolver(), Settings.System.SOUND_EFFECTS_ENABLED, 0, user) != 0; } /** * Load Sound effects. * This method must be called when sound effects are enabled. */ public void loadSoundEffects() { IAudioService service = getService(); try { service.loadSoundEffects(); } catch (RemoteException e) { Log.e(TAG, "Dead object in loadSoundEffects"+e); } } /** * Unload Sound effects. * This method can be called to free some memory when * sound effects are disabled. */ public void unloadSoundEffects() { IAudioService service = getService(); try { service.unloadSoundEffects(); } catch (RemoteException e) { Log.e(TAG, "Dead object in unloadSoundEffects"+e); } } /** * @hide * Used to indicate no audio focus has been gained or lost. */ public static final int AUDIOFOCUS_NONE = 0; /** * Used to indicate a gain of audio focus, or a request of audio focus, of unknown duration. * @see OnAudioFocusChangeListener#onAudioFocusChange(int) * @see #requestAudioFocus(OnAudioFocusChangeListener, int, int) */ public static final int AUDIOFOCUS_GAIN = 1; /** * Used to indicate a temporary gain or request of audio focus, anticipated to last a short * amount of time. Examples of temporary changes are the playback of driving directions, or an * event notification. * @see OnAudioFocusChangeListener#onAudioFocusChange(int) * @see #requestAudioFocus(OnAudioFocusChangeListener, int, int) */ public static final int AUDIOFOCUS_GAIN_TRANSIENT = 2; /** * Used to indicate a temporary request of audio focus, anticipated to last a short * amount of time, and where it is acceptable for other audio applications to keep playing * after having lowered their output level (also referred to as "ducking"). * Examples of temporary changes are the playback of driving directions where playback of music * in the background is acceptable. * @see OnAudioFocusChangeListener#onAudioFocusChange(int) * @see #requestAudioFocus(OnAudioFocusChangeListener, int, int) */ public static final int AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK = 3; /** * Used to indicate a temporary request of audio focus, anticipated to last a short * amount of time, during which no other applications, or system components, should play * anything. Examples of exclusive and transient audio focus requests are voice * memo recording and speech recognition, during which the system shouldn't play any * notifications, and media playback should have paused. * @see #requestAudioFocus(OnAudioFocusChangeListener, int, int) */ public static final int AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE = 4; /** * Used to indicate a loss of audio focus of unknown duration. * @see OnAudioFocusChangeListener#onAudioFocusChange(int) */ public static final int AUDIOFOCUS_LOSS = -1 * AUDIOFOCUS_GAIN; /** * Used to indicate a transient loss of audio focus. * @see OnAudioFocusChangeListener#onAudioFocusChange(int) */ public static final int AUDIOFOCUS_LOSS_TRANSIENT = -1 * AUDIOFOCUS_GAIN_TRANSIENT; /** * Used to indicate a transient loss of audio focus where the loser of the audio focus can * lower its output volume if it wants to continue playing (also referred to as "ducking"), as * the new focus owner doesn't require others to be silent. * @see OnAudioFocusChangeListener#onAudioFocusChange(int) */ public static final int AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK = -1 * AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK; /** * Interface definition for a callback to be invoked when the audio focus of the system is * updated. */ public interface OnAudioFocusChangeListener { /** * Called on the listener to notify it the audio focus for this listener has been changed. * The focusChange value indicates whether the focus was gained, * whether the focus was lost, and whether that loss is transient, or whether the new focus * holder will hold it for an unknown amount of time. * When losing focus, listeners can use the focus change information to decide what * behavior to adopt when losing focus. A music player could for instance elect to lower * the volume of its music stream (duck) for transient focus losses, and pause otherwise. * @param focusChange the type of focus change, one of {@link AudioManager#AUDIOFOCUS_GAIN}, * {@link AudioManager#AUDIOFOCUS_LOSS}, {@link AudioManager#AUDIOFOCUS_LOSS_TRANSIENT} * and {@link AudioManager#AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK}. */ public void onAudioFocusChange(int focusChange); } /** * Map to convert focus event listener IDs, as used in the AudioService audio focus stack, * to actual listener objects. */ private final HashMap<String, OnAudioFocusChangeListener> mAudioFocusIdListenerMap = new HashMap<String, OnAudioFocusChangeListener>(); /** * Lock to prevent concurrent changes to the list of focus listeners for this AudioManager * instance. */ private final Object mFocusListenerLock = new Object(); private OnAudioFocusChangeListener findFocusListener(String id) { return mAudioFocusIdListenerMap.get(id); } /** * Handler for audio focus events coming from the audio service. */ private final FocusEventHandlerDelegate mAudioFocusEventHandlerDelegate = new FocusEventHandlerDelegate(); /** * Helper class to handle the forwarding of audio focus events to the appropriate listener */ private class FocusEventHandlerDelegate { private final Handler mHandler; FocusEventHandlerDelegate() { Looper looper; if ((looper = Looper.myLooper()) == null) { looper = Looper.getMainLooper(); } if (looper != null) { // implement the event handler delegate to receive audio focus events mHandler = new Handler(looper) { @Override public void handleMessage(Message msg) { OnAudioFocusChangeListener listener = null; synchronized(mFocusListenerLock) { listener = findFocusListener((String)msg.obj); } if (listener != null) { Log.d(TAG, "AudioManager dispatching onAudioFocusChange(" + msg.what + ") for " + msg.obj); listener.onAudioFocusChange(msg.what); } } }; } else { mHandler = null; } } Handler getHandler() { return mHandler; } } private final IAudioFocusDispatcher mAudioFocusDispatcher = new IAudioFocusDispatcher.Stub() { public void dispatchAudioFocusChange(int focusChange, String id) { Message m = mAudioFocusEventHandlerDelegate.getHandler().obtainMessage(focusChange, id); mAudioFocusEventHandlerDelegate.getHandler().sendMessage(m); } }; private String getIdForAudioFocusListener(OnAudioFocusChangeListener l) { if (l == null) { return new String(this.toString()); } else { return new String(this.toString() + l.toString()); } } /** * @hide * Registers a listener to be called when audio focus changes. Calling this method is optional * before calling {@link #requestAudioFocus(OnAudioFocusChangeListener, int, int)}, as it * will register the listener as well if it wasn't registered already. * @param l the listener to be notified of audio focus changes. */ public void registerAudioFocusListener(OnAudioFocusChangeListener l) { synchronized(mFocusListenerLock) { if (mAudioFocusIdListenerMap.containsKey(getIdForAudioFocusListener(l))) { return; } mAudioFocusIdListenerMap.put(getIdForAudioFocusListener(l), l); } } /** * @hide * Causes the specified listener to not be called anymore when focus is gained or lost. * @param l the listener to unregister. */ public void unregisterAudioFocusListener(OnAudioFocusChangeListener l) { // remove locally synchronized(mFocusListenerLock) { mAudioFocusIdListenerMap.remove(getIdForAudioFocusListener(l)); } } /** * A failed focus change request. */ public static final int AUDIOFOCUS_REQUEST_FAILED = 0; /** * A successful focus change request. */ public static final int AUDIOFOCUS_REQUEST_GRANTED = 1; /** * @hide * A focus change request whose granting is delayed: the request was successful, but the * requester will only be granted audio focus once the condition that prevented immediate * granting has ended. * See {@link #requestAudioFocus(OnAudioFocusChangeListener, AudioAttributes, int, int)} */ public static final int AUDIOFOCUS_REQUEST_DELAYED = 2; /** * Request audio focus. * Send a request to obtain the audio focus * @param l the listener to be notified of audio focus changes * @param streamType the main audio stream type affected by the focus request * @param durationHint use {@link #AUDIOFOCUS_GAIN_TRANSIENT} to indicate this focus request * is temporary, and focus will be abandonned shortly. Examples of transient requests are * for the playback of driving directions, or notifications sounds. * Use {@link #AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK} to indicate also that it's ok for * the previous focus owner to keep playing if it ducks its audio output. * Alternatively use {@link #AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE} for a temporary request * that benefits from the system not playing disruptive sounds like notifications, for * usecases such as voice memo recording, or speech recognition. * Use {@link #AUDIOFOCUS_GAIN} for a focus request of unknown duration such * as the playback of a song or a video. * @return {@link #AUDIOFOCUS_REQUEST_FAILED} or {@link #AUDIOFOCUS_REQUEST_GRANTED} */ public int requestAudioFocus(OnAudioFocusChangeListener l, int streamType, int durationHint) { int status = AUDIOFOCUS_REQUEST_FAILED; try { // status is guaranteed to be either AUDIOFOCUS_REQUEST_FAILED or // AUDIOFOCUS_REQUEST_GRANTED as focus is requested without the // AUDIOFOCUS_FLAG_DELAY_OK flag status = requestAudioFocus(l, new AudioAttributes.Builder() .setInternalLegacyStreamType(streamType).build(), durationHint, 0 /* flags, legacy behavior */); } catch (IllegalArgumentException e) { Log.e(TAG, "Audio focus request denied due to ", e); } return status; } // when adding new flags, add them to the relevant AUDIOFOCUS_FLAGS_APPS or SYSTEM masks /** * @hide * Use this flag when requesting audio focus to indicate it is ok for the requester to not be * granted audio focus immediately (as indicated by {@link #AUDIOFOCUS_REQUEST_DELAYED}) when * the system is in a state where focus cannot change, but be granted focus later when * this condition ends. */ @SystemApi public static final int AUDIOFOCUS_FLAG_DELAY_OK = 0x1 << 0; /** * @hide * Use this flag when requesting audio focus to indicate that the requester * will pause its media playback (if applicable) when losing audio focus with * {@link #AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK}, rather than ducking. * <br>On some platforms, the ducking may be handled without the application being aware of it * (i.e. it will not transiently lose focus). For applications that for instance play spoken * content, such as audio book or podcast players, ducking may never be acceptable, and will * thus always pause. This flag enables them to be declared as such whenever they request focus. */ @SystemApi public static final int AUDIOFOCUS_FLAG_PAUSES_ON_DUCKABLE_LOSS = 0x1 << 1; /** * @hide * Use this flag to lock audio focus so granting is temporarily disabled. * <br>This flag can only be used by owners of a registered * {@link android.media.audiopolicy.AudioPolicy} in * {@link #requestAudioFocus(OnAudioFocusChangeListener, AudioAttributes, int, int, AudioPolicy)} */ @SystemApi public static final int AUDIOFOCUS_FLAG_LOCK = 0x1 << 2; /** @hide */ public static final int AUDIOFOCUS_FLAGS_APPS = AUDIOFOCUS_FLAG_DELAY_OK | AUDIOFOCUS_FLAG_PAUSES_ON_DUCKABLE_LOSS; /** @hide */ public static final int AUDIOFOCUS_FLAGS_SYSTEM = AUDIOFOCUS_FLAG_DELAY_OK | AUDIOFOCUS_FLAG_PAUSES_ON_DUCKABLE_LOSS | AUDIOFOCUS_FLAG_LOCK; /** * @hide * Request audio focus. * Send a request to obtain the audio focus. This method differs from * {@link #requestAudioFocus(OnAudioFocusChangeListener, int, int)} in that it can express * that the requester accepts delayed grants of audio focus. * @param l the listener to be notified of audio focus changes. It is not allowed to be null * when the request is flagged with {@link #AUDIOFOCUS_FLAG_DELAY_OK}. * @param requestAttributes non null {@link AudioAttributes} describing the main reason for * requesting audio focus. * @param durationHint use {@link #AUDIOFOCUS_GAIN_TRANSIENT} to indicate this focus request * is temporary, and focus will be abandonned shortly. Examples of transient requests are * for the playback of driving directions, or notifications sounds. * Use {@link #AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK} to indicate also that it's ok for * the previous focus owner to keep playing if it ducks its audio output. * Alternatively use {@link #AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE} for a temporary request * that benefits from the system not playing disruptive sounds like notifications, for * usecases such as voice memo recording, or speech recognition. * Use {@link #AUDIOFOCUS_GAIN} for a focus request of unknown duration such * as the playback of a song or a video. * @param flags 0 or a combination of {link #AUDIOFOCUS_FLAG_DELAY_OK} * and {@link #AUDIOFOCUS_FLAG_PAUSES_ON_DUCKABLE_LOSS}. * <br>Use 0 when not using any flags for the request, which behaves like * {@link #requestAudioFocus(OnAudioFocusChangeListener, int, int)}, where either audio * focus is granted immediately, or the grant request fails because the system is in a * state where focus cannot change (e.g. a phone call). * @return {@link #AUDIOFOCUS_REQUEST_FAILED}, {@link #AUDIOFOCUS_REQUEST_GRANTED} * or {@link #AUDIOFOCUS_REQUEST_DELAYED}. * The return value is never {@link #AUDIOFOCUS_REQUEST_DELAYED} when focus is requested * without the {@link #AUDIOFOCUS_FLAG_DELAY_OK} flag. * @throws IllegalArgumentException */ @SystemApi public int requestAudioFocus(OnAudioFocusChangeListener l, @NonNull AudioAttributes requestAttributes, int durationHint, int flags) throws IllegalArgumentException { if (flags != (flags & AUDIOFOCUS_FLAGS_APPS)) { throw new IllegalArgumentException("Invalid flags 0x" + Integer.toHexString(flags).toUpperCase()); } return requestAudioFocus(l, requestAttributes, durationHint, flags & AUDIOFOCUS_FLAGS_APPS, null /* no AudioPolicy*/); } /** * @hide * Request or lock audio focus. * This method is to be used by system components that have registered an * {@link android.media.audiopolicy.AudioPolicy} to request audio focus, but also to "lock" it * so focus granting is temporarily disabled. * @param l see the description of the same parameter in * {@link #requestAudioFocus(OnAudioFocusChangeListener, AudioAttributes, int, int)} * @param requestAttributes non null {@link AudioAttributes} describing the main reason for * requesting audio focus. * @param durationHint see the description of the same parameter in * {@link #requestAudioFocus(OnAudioFocusChangeListener, AudioAttributes, int, int)} * @param flags 0 or a combination of {link #AUDIOFOCUS_FLAG_DELAY_OK}, * {@link #AUDIOFOCUS_FLAG_PAUSES_ON_DUCKABLE_LOSS}, and {@link #AUDIOFOCUS_FLAG_LOCK}. * <br>Use 0 when not using any flags for the request, which behaves like * {@link #requestAudioFocus(OnAudioFocusChangeListener, int, int)}, where either audio * focus is granted immediately, or the grant request fails because the system is in a * state where focus cannot change (e.g. a phone call). * @param ap a registered {@link android.media.audiopolicy.AudioPolicy} instance when locking * focus, or null. * @return see the description of the same return value in * {@link #requestAudioFocus(OnAudioFocusChangeListener, AudioAttributes, int, int)} * @throws IllegalArgumentException */ @SystemApi public int requestAudioFocus(OnAudioFocusChangeListener l, @NonNull AudioAttributes requestAttributes, int durationHint, int flags, AudioPolicy ap) throws IllegalArgumentException { // parameter checking if (requestAttributes == null) { throw new IllegalArgumentException("Illegal null AudioAttributes argument"); } if ((durationHint < AUDIOFOCUS_GAIN) || (durationHint > AUDIOFOCUS_GAIN_TRANSIENT_EXCLUSIVE)) { throw new IllegalArgumentException("Invalid duration hint"); } if (flags != (flags & AUDIOFOCUS_FLAGS_SYSTEM)) { throw new IllegalArgumentException("Illegal flags 0x" + Integer.toHexString(flags).toUpperCase()); } if (((flags & AUDIOFOCUS_FLAG_DELAY_OK) == AUDIOFOCUS_FLAG_DELAY_OK) && (l == null)) { throw new IllegalArgumentException( "Illegal null focus listener when flagged as accepting delayed focus grant"); } if (((flags & AUDIOFOCUS_FLAG_LOCK) == AUDIOFOCUS_FLAG_LOCK) && (ap == null)) { throw new IllegalArgumentException( "Illegal null audio policy when locking audio focus"); } int status = AUDIOFOCUS_REQUEST_FAILED; registerAudioFocusListener(l); IAudioService service = getService(); try { status = service.requestAudioFocus(requestAttributes, durationHint, mICallBack, mAudioFocusDispatcher, getIdForAudioFocusListener(l), getContext().getOpPackageName() /* package name */, flags, ap != null ? ap.cb() : null); } catch (RemoteException e) { Log.e(TAG, "Can't call requestAudioFocus() on AudioService:", e); } return status; } /** * @hide * Used internally by telephony package to request audio focus. Will cause the focus request * to be associated with the "voice communication" identifier only used in AudioService * to identify this use case. * @param streamType use STREAM_RING for focus requests when ringing, VOICE_CALL for * the establishment of the call * @param durationHint the type of focus request. AUDIOFOCUS_GAIN_TRANSIENT is recommended so * media applications resume after a call */ public void requestAudioFocusForCall(int streamType, int durationHint) { IAudioService service = getService(); try { service.requestAudioFocus(new AudioAttributes.Builder() .setInternalLegacyStreamType(streamType).build(), durationHint, mICallBack, null, AudioSystem.IN_VOICE_COMM_FOCUS_ID, getContext().getOpPackageName(), AUDIOFOCUS_FLAG_LOCK, null /* policy token */); } catch (RemoteException e) { Log.e(TAG, "Can't call requestAudioFocusForCall() on AudioService:", e); } } /** * @hide * Used internally by telephony package to abandon audio focus, typically after a call or * when ringing ends and the call is rejected or not answered. * Should match one or more calls to {@link #requestAudioFocusForCall(int, int)}. */ public void abandonAudioFocusForCall() { IAudioService service = getService(); try { service.abandonAudioFocus(null, AudioSystem.IN_VOICE_COMM_FOCUS_ID, null /*AudioAttributes, legacy behavior*/); } catch (RemoteException e) { Log.e(TAG, "Can't call abandonAudioFocusForCall() on AudioService:", e); } } /** * Abandon audio focus. Causes the previous focus owner, if any, to receive focus. * @param l the listener with which focus was requested. * @return {@link #AUDIOFOCUS_REQUEST_FAILED} or {@link #AUDIOFOCUS_REQUEST_GRANTED} */ public int abandonAudioFocus(OnAudioFocusChangeListener l) { return abandonAudioFocus(l, null /*AudioAttributes, legacy behavior*/); } /** * @hide * Abandon audio focus. Causes the previous focus owner, if any, to receive focus. * @param l the listener with which focus was requested. * @param aa the {@link AudioAttributes} with which audio focus was requested * @return {@link #AUDIOFOCUS_REQUEST_FAILED} or {@link #AUDIOFOCUS_REQUEST_GRANTED} */ @SystemApi public int abandonAudioFocus(OnAudioFocusChangeListener l, AudioAttributes aa) { int status = AUDIOFOCUS_REQUEST_FAILED; unregisterAudioFocusListener(l); IAudioService service = getService(); try { status = service.abandonAudioFocus(mAudioFocusDispatcher, getIdForAudioFocusListener(l), aa); } catch (RemoteException e) { Log.e(TAG, "Can't call abandonAudioFocus() on AudioService:", e); } return status; } //==================================================================== // Remote Control /** * Register a component to be the sole receiver of MEDIA_BUTTON intents. * @param eventReceiver identifier of a {@link android.content.BroadcastReceiver} * that will receive the media button intent. This broadcast receiver must be declared * in the application manifest. The package of the component must match that of * the context you're registering from. * @deprecated Use {@link MediaSession#setMediaButtonReceiver(PendingIntent)} instead. */ @Deprecated public void registerMediaButtonEventReceiver(ComponentName eventReceiver) { if (eventReceiver == null) { return; } if (!eventReceiver.getPackageName().equals(getContext().getPackageName())) { Log.e(TAG, "registerMediaButtonEventReceiver() error: " + "receiver and context package names don't match"); return; } // construct a PendingIntent for the media button and register it Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); // the associated intent will be handled by the component being registered mediaButtonIntent.setComponent(eventReceiver); PendingIntent pi = PendingIntent.getBroadcast(getContext(), 0/*requestCode, ignored*/, mediaButtonIntent, 0/*flags*/); registerMediaButtonIntent(pi, eventReceiver); } /** * Register a component to be the sole receiver of MEDIA_BUTTON intents. This is like * {@link #registerMediaButtonEventReceiver(android.content.ComponentName)}, but allows * the buttons to go to any PendingIntent. Note that you should only use this form if * you know you will continue running for the full time until unregistering the * PendingIntent. * @param eventReceiver target that will receive media button intents. The PendingIntent * will be sent an {@link Intent#ACTION_MEDIA_BUTTON} event when a media button action * occurs, with {@link Intent#EXTRA_KEY_EVENT} added and holding the key code of the * media button that was pressed. * @deprecated Use {@link MediaSession#setMediaButtonReceiver(PendingIntent)} instead. */ @Deprecated public void registerMediaButtonEventReceiver(PendingIntent eventReceiver) { if (eventReceiver == null) { return; } registerMediaButtonIntent(eventReceiver, null); } /** * @hide * no-op if (pi == null) or (eventReceiver == null) */ public void registerMediaButtonIntent(PendingIntent pi, ComponentName eventReceiver) { if (pi == null) { Log.e(TAG, "Cannot call registerMediaButtonIntent() with a null parameter"); return; } MediaSessionLegacyHelper helper = MediaSessionLegacyHelper.getHelper(getContext()); helper.addMediaButtonListener(pi, eventReceiver, getContext()); } /** * Unregister the receiver of MEDIA_BUTTON intents. * @param eventReceiver identifier of a {@link android.content.BroadcastReceiver} * that was registered with {@link #registerMediaButtonEventReceiver(ComponentName)}. * @deprecated Use {@link MediaSession} instead. */ @Deprecated public void unregisterMediaButtonEventReceiver(ComponentName eventReceiver) { if (eventReceiver == null) { return; } // construct a PendingIntent for the media button and unregister it Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); // the associated intent will be handled by the component being registered mediaButtonIntent.setComponent(eventReceiver); PendingIntent pi = PendingIntent.getBroadcast(getContext(), 0/*requestCode, ignored*/, mediaButtonIntent, 0/*flags*/); unregisterMediaButtonIntent(pi); } /** * Unregister the receiver of MEDIA_BUTTON intents. * @param eventReceiver same PendingIntent that was registed with * {@link #registerMediaButtonEventReceiver(PendingIntent)}. * @deprecated Use {@link MediaSession} instead. */ @Deprecated public void unregisterMediaButtonEventReceiver(PendingIntent eventReceiver) { if (eventReceiver == null) { return; } unregisterMediaButtonIntent(eventReceiver); } /** * @hide */ public void unregisterMediaButtonIntent(PendingIntent pi) { MediaSessionLegacyHelper helper = MediaSessionLegacyHelper.getHelper(getContext()); helper.removeMediaButtonListener(pi); } /** * Registers the remote control client for providing information to display on the remote * controls. * @param rcClient The remote control client from which remote controls will receive * information to display. * @see RemoteControlClient * @deprecated Use {@link MediaSession} instead. */ @Deprecated public void registerRemoteControlClient(RemoteControlClient rcClient) { if ((rcClient == null) || (rcClient.getRcMediaIntent() == null)) { return; } rcClient.registerWithSession(MediaSessionLegacyHelper.getHelper(getContext())); } /** * Unregisters the remote control client that was providing information to display on the * remote controls. * @param rcClient The remote control client to unregister. * @see #registerRemoteControlClient(RemoteControlClient) * @deprecated Use {@link MediaSession} instead. */ @Deprecated public void unregisterRemoteControlClient(RemoteControlClient rcClient) { if ((rcClient == null) || (rcClient.getRcMediaIntent() == null)) { return; } rcClient.unregisterWithSession(MediaSessionLegacyHelper.getHelper(getContext())); } /** * Registers a {@link RemoteController} instance for it to receive media * metadata updates and playback state information from applications using * {@link RemoteControlClient}, and control their playback. * <p> * Registration requires the {@link RemoteController.OnClientUpdateListener} listener to be * one of the enabled notification listeners (see * {@link android.service.notification.NotificationListenerService}). * * @param rctlr the object to register. * @return true if the {@link RemoteController} was successfully registered, * false if an error occurred, due to an internal system error, or * insufficient permissions. * @deprecated Use * {@link MediaSessionManager#addOnActiveSessionsChangedListener(android.media.session.MediaSessionManager.OnActiveSessionsChangedListener, ComponentName)} * and {@link MediaController} instead. */ @Deprecated public boolean registerRemoteController(RemoteController rctlr) { if (rctlr == null) { return false; } rctlr.startListeningToSessions(); return true; } /** * Unregisters a {@link RemoteController}, causing it to no longer receive * media metadata and playback state information, and no longer be capable * of controlling playback. * * @param rctlr the object to unregister. * @deprecated Use * {@link MediaSessionManager#removeOnActiveSessionsChangedListener(android.media.session.MediaSessionManager.OnActiveSessionsChangedListener)} * instead. */ @Deprecated public void unregisterRemoteController(RemoteController rctlr) { if (rctlr == null) { return; } rctlr.stopListeningToSessions(); } /** * @hide * Registers a remote control display that will be sent information by remote control clients. * Use this method if your IRemoteControlDisplay is not going to display artwork, otherwise * use {@link #registerRemoteControlDisplay(IRemoteControlDisplay, int, int)} to pass the * artwork size directly, or * {@link #remoteControlDisplayUsesBitmapSize(IRemoteControlDisplay, int, int)} later if artwork * is not yet needed. * <p>Registration requires the {@link Manifest.permission#MEDIA_CONTENT_CONTROL} permission. * @param rcd the IRemoteControlDisplay */ public void registerRemoteControlDisplay(IRemoteControlDisplay rcd) { // passing a negative value for art work width and height as they are unknown at this stage registerRemoteControlDisplay(rcd, /*w*/-1, /*h*/ -1); } /** * @hide * Registers a remote control display that will be sent information by remote control clients. * <p>Registration requires the {@link Manifest.permission#MEDIA_CONTENT_CONTROL} permission. * @param rcd * @param w the maximum width of the expected bitmap. Negative values indicate it is * useless to send artwork. * @param h the maximum height of the expected bitmap. Negative values indicate it is * useless to send artwork. */ public void registerRemoteControlDisplay(IRemoteControlDisplay rcd, int w, int h) { if (rcd == null) { return; } IAudioService service = getService(); try { service.registerRemoteControlDisplay(rcd, w, h); } catch (RemoteException e) { Log.e(TAG, "Dead object in registerRemoteControlDisplay " + e); } } /** * @hide * Unregisters a remote control display that was sent information by remote control clients. * @param rcd */ public void unregisterRemoteControlDisplay(IRemoteControlDisplay rcd) { if (rcd == null) { return; } IAudioService service = getService(); try { service.unregisterRemoteControlDisplay(rcd); } catch (RemoteException e) { Log.e(TAG, "Dead object in unregisterRemoteControlDisplay " + e); } } /** * @hide * Sets the artwork size a remote control display expects when receiving bitmaps. * @param rcd * @param w the maximum width of the expected bitmap. Negative values indicate it is * useless to send artwork. * @param h the maximum height of the expected bitmap. Negative values indicate it is * useless to send artwork. */ public void remoteControlDisplayUsesBitmapSize(IRemoteControlDisplay rcd, int w, int h) { if (rcd == null) { return; } IAudioService service = getService(); try { service.remoteControlDisplayUsesBitmapSize(rcd, w, h); } catch (RemoteException e) { Log.e(TAG, "Dead object in remoteControlDisplayUsesBitmapSize " + e); } } /** * @hide * Controls whether a remote control display needs periodic checks of the RemoteControlClient * playback position to verify that the estimated position has not drifted from the actual * position. By default the check is not performed. * The IRemoteControlDisplay must have been previously registered for this to have any effect. * @param rcd the IRemoteControlDisplay for which the anti-drift mechanism will be enabled * or disabled. No effect is null. * @param wantsSync if true, RemoteControlClient instances which expose their playback position * to the framework will regularly compare the estimated playback position with the actual * position, and will update the IRemoteControlDisplay implementation whenever a drift is * detected. */ public void remoteControlDisplayWantsPlaybackPositionSync(IRemoteControlDisplay rcd, boolean wantsSync) { if (rcd == null) { return; } IAudioService service = getService(); try { service.remoteControlDisplayWantsPlaybackPositionSync(rcd, wantsSync); } catch (RemoteException e) { Log.e(TAG, "Dead object in remoteControlDisplayWantsPlaybackPositionSync " + e); } } /** * @hide * Register the given {@link AudioPolicy}. * This call is synchronous and blocks until the registration process successfully completed * or failed to complete. * @param policy the non-null {@link AudioPolicy} to register. * @return {@link #ERROR} if there was an error communicating with the registration service * or if the user doesn't have the required * {@link android.Manifest.permission#MODIFY_AUDIO_ROUTING} permission, * {@link #SUCCESS} otherwise. */ @SystemApi public int registerAudioPolicy(@NonNull AudioPolicy policy) { if (policy == null) { throw new IllegalArgumentException("Illegal null AudioPolicy argument"); } IAudioService service = getService(); try { String regId = service.registerAudioPolicy(policy.getConfig(), policy.cb(), policy.hasFocusListener()); if (regId == null) { return ERROR; } else { policy.setRegistration(regId); } // successful registration } catch (RemoteException e) { Log.e(TAG, "Dead object in registerAudioPolicyAsync()", e); return ERROR; } return SUCCESS; } /** * @hide * @param policy the non-null {@link AudioPolicy} to unregister. */ @SystemApi public void unregisterAudioPolicyAsync(@NonNull AudioPolicy policy) { if (policy == null) { throw new IllegalArgumentException("Illegal null AudioPolicy argument"); } IAudioService service = getService(); try { service.unregisterAudioPolicyAsync(policy.cb()); policy.setRegistration(null); } catch (RemoteException e) { Log.e(TAG, "Dead object in unregisterAudioPolicyAsync()", e); } } /** * @hide * Reload audio settings. This method is called by Settings backup * agent when audio settings are restored and causes the AudioService * to read and apply restored settings. */ public void reloadAudioSettings() { IAudioService service = getService(); try { service.reloadAudioSettings(); } catch (RemoteException e) { Log.e(TAG, "Dead object in reloadAudioSettings"+e); } } /** * @hide * Notifies AudioService that it is connected to an A2DP device that supports absolute volume, * so that AudioService can send volume change events to the A2DP device, rather than handling * them. */ public void avrcpSupportsAbsoluteVolume(String address, boolean support) { IAudioService service = getService(); try { service.avrcpSupportsAbsoluteVolume(address, support); } catch (RemoteException e) { Log.e(TAG, "Dead object in avrcpSupportsAbsoluteVolume", e); } } /** * {@hide} */ private final IBinder mICallBack = new Binder(); /** * Checks whether the phone is in silent mode, with or without vibrate. * * @return true if phone is in silent mode, with or without vibrate. * * @see #getRingerMode() * * @hide pending API Council approval */ public boolean isSilentMode() { int ringerMode = getRingerMode(); boolean silentMode = (ringerMode == RINGER_MODE_SILENT) || (ringerMode == RINGER_MODE_VIBRATE); return silentMode; } // This section re-defines new output device constants from AudioSystem, because the AudioSystem // class is not used by other parts of the framework, which instead use definitions and methods // from AudioManager. AudioSystem is an internal class used by AudioManager and AudioService. /** @hide * The audio device code for representing "no device." */ public static final int DEVICE_NONE = AudioSystem.DEVICE_NONE; /** @hide * The audio output device code for the small speaker at the front of the device used * when placing calls. Does not refer to an in-ear headphone without attached microphone, * such as earbuds, earphones, or in-ear monitors (IEM). Those would be handled as a * {@link #DEVICE_OUT_WIRED_HEADPHONE}. */ public static final int DEVICE_OUT_EARPIECE = AudioSystem.DEVICE_OUT_EARPIECE; /** @hide * The audio output device code for the built-in speaker */ public static final int DEVICE_OUT_SPEAKER = AudioSystem.DEVICE_OUT_SPEAKER; /** @hide * The audio output device code for a wired headset with attached microphone */ public static final int DEVICE_OUT_WIRED_HEADSET = AudioSystem.DEVICE_OUT_WIRED_HEADSET; /** @hide * The audio output device code for a wired headphone without attached microphone */ public static final int DEVICE_OUT_WIRED_HEADPHONE = AudioSystem.DEVICE_OUT_WIRED_HEADPHONE; /** @hide * The audio output device code for generic Bluetooth SCO, for voice */ public static final int DEVICE_OUT_BLUETOOTH_SCO = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO; /** @hide * The audio output device code for Bluetooth SCO Headset Profile (HSP) and * Hands-Free Profile (HFP), for voice */ public static final int DEVICE_OUT_BLUETOOTH_SCO_HEADSET = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_HEADSET; /** @hide * The audio output device code for Bluetooth SCO car audio, for voice */ public static final int DEVICE_OUT_BLUETOOTH_SCO_CARKIT = AudioSystem.DEVICE_OUT_BLUETOOTH_SCO_CARKIT; /** @hide * The audio output device code for generic Bluetooth A2DP, for music */ public static final int DEVICE_OUT_BLUETOOTH_A2DP = AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP; /** @hide * The audio output device code for Bluetooth A2DP headphones, for music */ public static final int DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES = AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES; /** @hide * The audio output device code for Bluetooth A2DP external speaker, for music */ public static final int DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER = AudioSystem.DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER; /** @hide * The audio output device code for S/PDIF (legacy) or HDMI * Deprecated: replaced by {@link #DEVICE_OUT_HDMI} */ public static final int DEVICE_OUT_AUX_DIGITAL = AudioSystem.DEVICE_OUT_AUX_DIGITAL; /** @hide * The audio output device code for HDMI */ public static final int DEVICE_OUT_HDMI = AudioSystem.DEVICE_OUT_HDMI; /** @hide * The audio output device code for an analog wired headset attached via a * docking station */ public static final int DEVICE_OUT_ANLG_DOCK_HEADSET = AudioSystem.DEVICE_OUT_ANLG_DOCK_HEADSET; /** @hide * The audio output device code for a digital wired headset attached via a * docking station */ public static final int DEVICE_OUT_DGTL_DOCK_HEADSET = AudioSystem.DEVICE_OUT_DGTL_DOCK_HEADSET; /** @hide * The audio output device code for a USB audio accessory. The accessory is in USB host * mode and the Android device in USB device mode */ public static final int DEVICE_OUT_USB_ACCESSORY = AudioSystem.DEVICE_OUT_USB_ACCESSORY; /** @hide * The audio output device code for a USB audio device. The device is in USB device * mode and the Android device in USB host mode */ public static final int DEVICE_OUT_USB_DEVICE = AudioSystem.DEVICE_OUT_USB_DEVICE; /** @hide * The audio output device code for projection output. */ public static final int DEVICE_OUT_REMOTE_SUBMIX = AudioSystem.DEVICE_OUT_REMOTE_SUBMIX; /** @hide * The audio output device code the telephony voice TX path. */ public static final int DEVICE_OUT_TELEPHONY_TX = AudioSystem.DEVICE_OUT_TELEPHONY_TX; /** @hide * The audio output device code for an analog jack with line impedance detected. */ public static final int DEVICE_OUT_LINE = AudioSystem.DEVICE_OUT_LINE; /** @hide * The audio output device code for HDMI Audio Return Channel. */ public static final int DEVICE_OUT_HDMI_ARC = AudioSystem.DEVICE_OUT_HDMI_ARC; /** @hide * The audio output device code for S/PDIF digital connection. */ public static final int DEVICE_OUT_SPDIF = AudioSystem.DEVICE_OUT_SPDIF; /** @hide * The audio output device code for built-in FM transmitter. */ public static final int DEVICE_OUT_FM = AudioSystem.DEVICE_OUT_FM; /** @hide * This is not used as a returned value from {@link #getDevicesForStream}, but could be * used in the future in a set method to select whatever default device is chosen by the * platform-specific implementation. */ public static final int DEVICE_OUT_DEFAULT = AudioSystem.DEVICE_OUT_DEFAULT; /** @hide * The audio input device code for default built-in microphone */ public static final int DEVICE_IN_BUILTIN_MIC = AudioSystem.DEVICE_IN_BUILTIN_MIC; /** @hide * The audio input device code for a Bluetooth SCO headset */ public static final int DEVICE_IN_BLUETOOTH_SCO_HEADSET = AudioSystem.DEVICE_IN_BLUETOOTH_SCO_HEADSET; /** @hide * The audio input device code for wired headset microphone */ public static final int DEVICE_IN_WIRED_HEADSET = AudioSystem.DEVICE_IN_WIRED_HEADSET; /** @hide * The audio input device code for HDMI */ public static final int DEVICE_IN_HDMI = AudioSystem.DEVICE_IN_HDMI; /** @hide * The audio input device code for telephony voice RX path */ public static final int DEVICE_IN_TELEPHONY_RX = AudioSystem.DEVICE_IN_TELEPHONY_RX; /** @hide * The audio input device code for built-in microphone pointing to the back */ public static final int DEVICE_IN_BACK_MIC = AudioSystem.DEVICE_IN_BACK_MIC; /** @hide * The audio input device code for analog from a docking station */ public static final int DEVICE_IN_ANLG_DOCK_HEADSET = AudioSystem.DEVICE_IN_ANLG_DOCK_HEADSET; /** @hide * The audio input device code for digital from a docking station */ public static final int DEVICE_IN_DGTL_DOCK_HEADSET = AudioSystem.DEVICE_IN_DGTL_DOCK_HEADSET; /** @hide * The audio input device code for a USB audio accessory. The accessory is in USB host * mode and the Android device in USB device mode */ public static final int DEVICE_IN_USB_ACCESSORY = AudioSystem.DEVICE_IN_USB_ACCESSORY; /** @hide * The audio input device code for a USB audio device. The device is in USB device * mode and the Android device in USB host mode */ public static final int DEVICE_IN_USB_DEVICE = AudioSystem.DEVICE_IN_USB_DEVICE; /** @hide * The audio input device code for a FM radio tuner */ public static final int DEVICE_IN_FM_TUNER = AudioSystem.DEVICE_IN_FM_TUNER; /** @hide * The audio input device code for a TV tuner */ public static final int DEVICE_IN_TV_TUNER = AudioSystem.DEVICE_IN_TV_TUNER; /** @hide * The audio input device code for an analog jack with line impedance detected */ public static final int DEVICE_IN_LINE = AudioSystem.DEVICE_IN_LINE; /** @hide * The audio input device code for a S/PDIF digital connection */ public static final int DEVICE_IN_SPDIF = AudioSystem.DEVICE_IN_SPDIF; /** @hide * The audio input device code for audio loopback */ public static final int DEVICE_IN_LOOPBACK = AudioSystem.DEVICE_IN_LOOPBACK; /** * Return true if the device code corresponds to an output device. * @hide */ public static boolean isOutputDevice(int device) { return (device & AudioSystem.DEVICE_BIT_IN) == 0; } /** * Return true if the device code corresponds to an input device. * @hide */ public static boolean isInputDevice(int device) { return (device & AudioSystem.DEVICE_BIT_IN) == AudioSystem.DEVICE_BIT_IN; } /** * Return the enabled devices for the specified output stream type. * * @param streamType The stream type to query. One of * {@link #STREAM_VOICE_CALL}, * {@link #STREAM_SYSTEM}, * {@link #STREAM_RING}, * {@link #STREAM_MUSIC}, * {@link #STREAM_ALARM}, * {@link #STREAM_NOTIFICATION}, * {@link #STREAM_DTMF}. * * @return The bit-mask "or" of audio output device codes for all enabled devices on this * stream. Zero or more of * {@link #DEVICE_OUT_EARPIECE}, * {@link #DEVICE_OUT_SPEAKER}, * {@link #DEVICE_OUT_WIRED_HEADSET}, * {@link #DEVICE_OUT_WIRED_HEADPHONE}, * {@link #DEVICE_OUT_BLUETOOTH_SCO}, * {@link #DEVICE_OUT_BLUETOOTH_SCO_HEADSET}, * {@link #DEVICE_OUT_BLUETOOTH_SCO_CARKIT}, * {@link #DEVICE_OUT_BLUETOOTH_A2DP}, * {@link #DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES}, * {@link #DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER}, * {@link #DEVICE_OUT_HDMI}, * {@link #DEVICE_OUT_ANLG_DOCK_HEADSET}, * {@link #DEVICE_OUT_DGTL_DOCK_HEADSET}. * {@link #DEVICE_OUT_USB_ACCESSORY}. * {@link #DEVICE_OUT_USB_DEVICE}. * {@link #DEVICE_OUT_REMOTE_SUBMIX}. * {@link #DEVICE_OUT_TELEPHONY_TX}. * {@link #DEVICE_OUT_LINE}. * {@link #DEVICE_OUT_HDMI_ARC}. * {@link #DEVICE_OUT_SPDIF}. * {@link #DEVICE_OUT_FM}. * {@link #DEVICE_OUT_DEFAULT} is not used here. * * The implementation may support additional device codes beyond those listed, so * the application should ignore any bits which it does not recognize. * Note that the information may be imprecise when the implementation * cannot distinguish whether a particular device is enabled. * * {@hide} */ public int getDevicesForStream(int streamType) { switch (streamType) { case STREAM_VOICE_CALL: case STREAM_SYSTEM: case STREAM_RING: case STREAM_MUSIC: case STREAM_ALARM: case STREAM_NOTIFICATION: case STREAM_DTMF: return AudioSystem.getDevicesForStream(streamType); default: return 0; } } /** * Indicate wired accessory connection state change. * @param device type of device connected/disconnected (AudioManager.DEVICE_OUT_xxx) * @param state new connection state: 1 connected, 0 disconnected * @param name device name * {@hide} */ public void setWiredDeviceConnectionState(int type, int state, String address, String name) { IAudioService service = getService(); try { service.setWiredDeviceConnectionState(type, state, address, name, mApplicationContext.getOpPackageName()); } catch (RemoteException e) { Log.e(TAG, "Dead object in setWiredDeviceConnectionState "+e); } } /** * Indicate A2DP source or sink connection state change. * @param device Bluetooth device connected/disconnected * @param state new connection state (BluetoothProfile.STATE_xxx) * @param profile profile for the A2DP device * (either {@link android.bluetooth.BluetoothProfile.A2DP} or * {@link android.bluetooth.BluetoothProfile.A2DP_SINK}) * @return a delay in ms that the caller should wait before broadcasting * BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED intent. * {@hide} */ public int setBluetoothA2dpDeviceConnectionState(BluetoothDevice device, int state, int profile) { IAudioService service = getService(); int delay = 0; try { delay = service.setBluetoothA2dpDeviceConnectionState(device, state, profile); } catch (RemoteException e) { Log.e(TAG, "Dead object in setBluetoothA2dpDeviceConnectionState "+e); } return delay; } /** {@hide} */ public IRingtonePlayer getRingtonePlayer() { try { return getService().getRingtonePlayer(); } catch (RemoteException e) { return null; } } /** * Used as a key for {@link #getProperty} to request the native or optimal output sample rate * for this device's primary output stream, in decimal Hz. */ public static final String PROPERTY_OUTPUT_SAMPLE_RATE = "android.media.property.OUTPUT_SAMPLE_RATE"; /** * Used as a key for {@link #getProperty} to request the native or optimal output buffer size * for this device's primary output stream, in decimal PCM frames. */ public static final String PROPERTY_OUTPUT_FRAMES_PER_BUFFER = "android.media.property.OUTPUT_FRAMES_PER_BUFFER"; /** * Used as a key for {@link #getProperty} to determine if the default microphone audio source * supports near-ultrasound frequencies (range of 18 - 21 kHz). */ public static final String PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND = "android.media.property.SUPPORT_MIC_NEAR_ULTRASOUND"; /** * Used as a key for {@link #getProperty} to determine if the default speaker audio path * supports near-ultrasound frequencies (range of 18 - 21 kHz). */ public static final String PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND = "android.media.property.SUPPORT_SPEAKER_NEAR_ULTRASOUND"; /** * Returns the value of the property with the specified key. * @param key One of the strings corresponding to a property key: either * {@link #PROPERTY_OUTPUT_SAMPLE_RATE} or * {@link #PROPERTY_OUTPUT_FRAMES_PER_BUFFER} * @return A string representing the associated value for that property key, * or null if there is no value for that key. */ public String getProperty(String key) { if (PROPERTY_OUTPUT_SAMPLE_RATE.equals(key)) { int outputSampleRate = AudioSystem.getPrimaryOutputSamplingRate(); return outputSampleRate > 0 ? Integer.toString(outputSampleRate) : null; } else if (PROPERTY_OUTPUT_FRAMES_PER_BUFFER.equals(key)) { int outputFramesPerBuffer = AudioSystem.getPrimaryOutputFrameCount(); return outputFramesPerBuffer > 0 ? Integer.toString(outputFramesPerBuffer) : null; } else if (PROPERTY_SUPPORT_MIC_NEAR_ULTRASOUND.equals(key)) { // Will throw a RuntimeException Resources.NotFoundException if this config value is // not found. return String.valueOf(getContext().getResources().getBoolean( com.android.internal.R.bool.config_supportMicNearUltrasound)); } else if (PROPERTY_SUPPORT_SPEAKER_NEAR_ULTRASOUND.equals(key)) { return String.valueOf(getContext().getResources().getBoolean( com.android.internal.R.bool.config_supportSpeakerNearUltrasound)); } else { // null or unknown key return null; } } /** * Returns the estimated latency for the given stream type in milliseconds. * * DO NOT UNHIDE. The existing approach for doing A/V sync has too many problems. We need * a better solution. * @hide */ public int getOutputLatency(int streamType) { return AudioSystem.getOutputLatency(streamType); } /** * Registers a global volume controller interface. Currently limited to SystemUI. * * @hide */ public void setVolumeController(IVolumeController controller) { try { getService().setVolumeController(controller); } catch (RemoteException e) { Log.w(TAG, "Error setting volume controller", e); } } /** * Notify audio manager about volume controller visibility changes. * Currently limited to SystemUI. * * @hide */ public void notifyVolumeControllerVisible(IVolumeController controller, boolean visible) { try { getService().notifyVolumeControllerVisible(controller, visible); } catch (RemoteException e) { Log.w(TAG, "Error notifying about volume controller visibility", e); } } /** * Only useful for volume controllers. * @hide */ public boolean isStreamAffectedByRingerMode(int streamType) { try { return getService().isStreamAffectedByRingerMode(streamType); } catch (RemoteException e) { Log.w(TAG, "Error calling isStreamAffectedByRingerMode", e); return false; } } /** * Only useful for volume controllers. * @hide */ public boolean isStreamAffectedByMute(int streamType) { try { return getService().isStreamAffectedByMute(streamType); } catch (RemoteException e) { Log.w(TAG, "Error calling isStreamAffectedByMute", e); return false; } } /** * Only useful for volume controllers. * @hide */ public void disableSafeMediaVolume() { try { getService().disableSafeMediaVolume(mApplicationContext.getOpPackageName()); } catch (RemoteException e) { Log.w(TAG, "Error disabling safe media volume", e); } } /** * Only useful for volume controllers. * @hide */ public void setRingerModeInternal(int ringerMode) { try { getService().setRingerModeInternal(ringerMode, getContext().getOpPackageName()); } catch (RemoteException e) { Log.w(TAG, "Error calling setRingerModeInternal", e); } } /** * Only useful for volume controllers. * @hide */ public int getRingerModeInternal() { try { return getService().getRingerModeInternal(); } catch (RemoteException e) { Log.w(TAG, "Error calling getRingerModeInternal", e); return RINGER_MODE_NORMAL; } } /** * Only useful for volume controllers. * @hide */ public void setVolumePolicy(VolumePolicy policy) { try { getService().setVolumePolicy(policy); } catch (RemoteException e) { Log.w(TAG, "Error calling setVolumePolicy", e); } } /** * Set Hdmi Cec system audio mode. * * @param on whether to be on system audio mode * @return output device type. 0 (DEVICE_NONE) if failed to set device. * @hide */ public int setHdmiSystemAudioSupported(boolean on) { try { return getService().setHdmiSystemAudioSupported(on); } catch (RemoteException e) { Log.w(TAG, "Error setting system audio mode", e); return AudioSystem.DEVICE_NONE; } } /** * Returns true if Hdmi Cec system audio mode is supported. * * @hide */ @SystemApi public boolean isHdmiSystemAudioSupported() { try { return getService().isHdmiSystemAudioSupported(); } catch (RemoteException e) { Log.w(TAG, "Error querying system audio mode", e); return false; } } /** * Return codes for listAudioPorts(), createAudioPatch() ... */ /** @hide * CANDIDATE FOR PUBLIC API */ public static final int SUCCESS = AudioSystem.SUCCESS; /** * A default error code. */ public static final int ERROR = AudioSystem.ERROR; /** @hide * CANDIDATE FOR PUBLIC API */ public static final int ERROR_BAD_VALUE = AudioSystem.BAD_VALUE; /** @hide */ public static final int ERROR_INVALID_OPERATION = AudioSystem.INVALID_OPERATION; /** @hide */ public static final int ERROR_PERMISSION_DENIED = AudioSystem.PERMISSION_DENIED; /** @hide */ public static final int ERROR_NO_INIT = AudioSystem.NO_INIT; /** * An error code indicating that the object reporting it is no longer valid and needs to * be recreated. */ public static final int ERROR_DEAD_OBJECT = AudioSystem.DEAD_OBJECT; /** * Returns a list of descriptors for all audio ports managed by the audio framework. * Audio ports are nodes in the audio framework or audio hardware that can be configured * or connected and disconnected with createAudioPatch() or releaseAudioPatch(). * See AudioPort for a list of attributes of each audio port. * @param ports An AudioPort ArrayList where the list will be returned. * @hide */ public static int listAudioPorts(ArrayList<AudioPort> ports) { return updateAudioPortCache(ports, null, null); } /** * Returns a list of descriptors for all audio ports managed by the audio framework as * it was before the last update calback. * @param ports An AudioPort ArrayList where the list will be returned. * @hide */ public static int listPreviousAudioPorts(ArrayList<AudioPort> ports) { return updateAudioPortCache(null, null, ports); } /** * Specialized version of listAudioPorts() listing only audio devices (AudioDevicePort) * @see listAudioPorts(ArrayList<AudioPort>) * @hide */ public static int listAudioDevicePorts(ArrayList<AudioDevicePort> devices) { if (devices == null) { return ERROR_BAD_VALUE; } ArrayList<AudioPort> ports = new ArrayList<AudioPort>(); int status = updateAudioPortCache(ports, null, null); if (status == SUCCESS) { filterDevicePorts(ports, devices); } return status; } /** * Specialized version of listPreviousAudioPorts() listing only audio devices (AudioDevicePort) * @see listPreviousAudioPorts(ArrayList<AudioPort>) * @hide */ public static int listPreviousAudioDevicePorts(ArrayList<AudioDevicePort> devices) { if (devices == null) { return ERROR_BAD_VALUE; } ArrayList<AudioPort> ports = new ArrayList<AudioPort>(); int status = updateAudioPortCache(null, null, ports); if (status == SUCCESS) { filterDevicePorts(ports, devices); } return status; } private static void filterDevicePorts(ArrayList<AudioPort> ports, ArrayList<AudioDevicePort> devices) { devices.clear(); for (int i = 0; i < ports.size(); i++) { if (ports.get(i) instanceof AudioDevicePort) { devices.add((AudioDevicePort)ports.get(i)); } } } /** * Create a connection between two or more devices. The framework will reject the request if * device types are not compatible or the implementation does not support the requested * configuration. * NOTE: current implementation is limited to one source and one sink per patch. * @param patch AudioPatch array where the newly created patch will be returned. * As input, if patch[0] is not null, the specified patch will be replaced by the * new patch created. This avoids calling releaseAudioPatch() when modifying a * patch and allows the implementation to optimize transitions. * @param sources List of source audio ports. All must be AudioPort.ROLE_SOURCE. * @param sinks List of sink audio ports. All must be AudioPort.ROLE_SINK. * * @return - {@link #SUCCESS} if connection is successful. * - {@link #ERROR_BAD_VALUE} if incompatible device types are passed. * - {@link #ERROR_INVALID_OPERATION} if the requested connection is not supported. * - {@link #ERROR_PERMISSION_DENIED} if the client does not have permission to create * a patch. * - {@link #ERROR_DEAD_OBJECT} if the server process is dead * - {@link #ERROR} if patch cannot be connected for any other reason. * * patch[0] contains the newly created patch * @hide */ public static int createAudioPatch(AudioPatch[] patch, AudioPortConfig[] sources, AudioPortConfig[] sinks) { return AudioSystem.createAudioPatch(patch, sources, sinks); } /** * Releases an existing audio patch connection. * @param patch The audio patch to disconnect. * @return - {@link #SUCCESS} if disconnection is successful. * - {@link #ERROR_BAD_VALUE} if the specified patch does not exist. * - {@link #ERROR_PERMISSION_DENIED} if the client does not have permission to release * a patch. * - {@link #ERROR_DEAD_OBJECT} if the server process is dead * - {@link #ERROR} if patch cannot be released for any other reason. * @hide */ public static int releaseAudioPatch(AudioPatch patch) { return AudioSystem.releaseAudioPatch(patch); } /** * List all existing connections between audio ports. * @param patches An AudioPatch array where the list will be returned. * @hide */ public static int listAudioPatches(ArrayList<AudioPatch> patches) { return updateAudioPortCache(null, patches, null); } /** * Set the gain on the specified AudioPort. The AudioGainConfig config is build by * AudioGain.buildConfig() * @hide */ public static int setAudioPortGain(AudioPort port, AudioGainConfig gain) { if (port == null || gain == null) { return ERROR_BAD_VALUE; } AudioPortConfig activeConfig = port.activeConfig(); AudioPortConfig config = new AudioPortConfig(port, activeConfig.samplingRate(), activeConfig.channelMask(), activeConfig.format(), gain); config.mConfigMask = AudioPortConfig.GAIN; return AudioSystem.setAudioPortConfig(config); } /** * Listener registered by client to be notified upon new audio port connections, * disconnections or attributes update. * @hide */ public interface OnAudioPortUpdateListener { /** * Callback method called upon audio port list update. * @param portList the updated list of audio ports */ public void onAudioPortListUpdate(AudioPort[] portList); /** * Callback method called upon audio patch list update. * @param patchList the updated list of audio patches */ public void onAudioPatchListUpdate(AudioPatch[] patchList); /** * Callback method called when the mediaserver dies */ public void onServiceDied(); } /** * Register an audio port list update listener. * @hide */ public void registerAudioPortUpdateListener(OnAudioPortUpdateListener l) { sAudioPortEventHandler.init(); sAudioPortEventHandler.registerListener(l); } /** * Unregister an audio port list update listener. * @hide */ public void unregisterAudioPortUpdateListener(OnAudioPortUpdateListener l) { sAudioPortEventHandler.unregisterListener(l); } // // AudioPort implementation // static final int AUDIOPORT_GENERATION_INIT = 0; static Integer sAudioPortGeneration = new Integer(AUDIOPORT_GENERATION_INIT); static ArrayList<AudioPort> sAudioPortsCached = new ArrayList<AudioPort>(); static ArrayList<AudioPort> sPreviousAudioPortsCached = new ArrayList<AudioPort>(); static ArrayList<AudioPatch> sAudioPatchesCached = new ArrayList<AudioPatch>(); static int resetAudioPortGeneration() { int generation; synchronized (sAudioPortGeneration) { generation = sAudioPortGeneration; sAudioPortGeneration = AUDIOPORT_GENERATION_INIT; } return generation; } static int updateAudioPortCache(ArrayList<AudioPort> ports, ArrayList<AudioPatch> patches, ArrayList<AudioPort> previousPorts) { sAudioPortEventHandler.init(); synchronized (sAudioPortGeneration) { if (sAudioPortGeneration == AUDIOPORT_GENERATION_INIT) { int[] patchGeneration = new int[1]; int[] portGeneration = new int[1]; int status; ArrayList<AudioPort> newPorts = new ArrayList<AudioPort>(); ArrayList<AudioPatch> newPatches = new ArrayList<AudioPatch>(); do { newPorts.clear(); status = AudioSystem.listAudioPorts(newPorts, portGeneration); if (status != SUCCESS) { Log.w(TAG, "updateAudioPortCache: listAudioPorts failed"); return status; } newPatches.clear(); status = AudioSystem.listAudioPatches(newPatches, patchGeneration); if (status != SUCCESS) { Log.w(TAG, "updateAudioPortCache: listAudioPatches failed"); return status; } } while (patchGeneration[0] != portGeneration[0]); for (int i = 0; i < newPatches.size(); i++) { for (int j = 0; j < newPatches.get(i).sources().length; j++) { AudioPortConfig portCfg = updatePortConfig(newPatches.get(i).sources()[j], newPorts); newPatches.get(i).sources()[j] = portCfg; } for (int j = 0; j < newPatches.get(i).sinks().length; j++) { AudioPortConfig portCfg = updatePortConfig(newPatches.get(i).sinks()[j], newPorts); newPatches.get(i).sinks()[j] = portCfg; } } for (Iterator<AudioPatch> i = newPatches.iterator(); i.hasNext(); ) { AudioPatch newPatch = i.next(); boolean hasInvalidPort = false; for (AudioPortConfig portCfg : newPatch.sources()) { if (portCfg == null) { hasInvalidPort = true; break; } } for (AudioPortConfig portCfg : newPatch.sinks()) { if (portCfg == null) { hasInvalidPort = true; break; } } if (hasInvalidPort) { // Temporarily remove patches with invalid ports. One who created the patch // is responsible for dealing with the port change. i.remove(); } } sPreviousAudioPortsCached = sAudioPortsCached; sAudioPortsCached = newPorts; sAudioPatchesCached = newPatches; sAudioPortGeneration = portGeneration[0]; } if (ports != null) { ports.clear(); ports.addAll(sAudioPortsCached); } if (patches != null) { patches.clear(); patches.addAll(sAudioPatchesCached); } if (previousPorts != null) { previousPorts.clear(); previousPorts.addAll(sPreviousAudioPortsCached); } } return SUCCESS; } static AudioPortConfig updatePortConfig(AudioPortConfig portCfg, ArrayList<AudioPort> ports) { AudioPort port = portCfg.port(); int k; for (k = 0; k < ports.size(); k++) { // compare handles because the port returned by JNI is not of the correct // subclass if (ports.get(k).handle().equals(port.handle())) { port = ports.get(k); break; } } if (k == ports.size()) { // this hould never happen Log.e(TAG, "updatePortConfig port not found for handle: "+port.handle().id()); return null; } AudioGainConfig gainCfg = portCfg.gain(); if (gainCfg != null) { AudioGain gain = port.gain(gainCfg.index()); gainCfg = gain.buildConfig(gainCfg.mode(), gainCfg.channelMask(), gainCfg.values(), gainCfg.rampDurationMs()); } return port.buildConfig(portCfg.samplingRate(), portCfg.channelMask(), portCfg.format(), gainCfg); } private OnAmPortUpdateListener mPortListener = null; /** * The message sent to apps when the contents of the device list changes if they provide * a {#link Handler} object to addOnAudioDeviceConnectionListener(). */ private final static int MSG_DEVICES_CALLBACK_REGISTERED = 0; private final static int MSG_DEVICES_DEVICES_ADDED = 1; private final static int MSG_DEVICES_DEVICES_REMOVED = 2; /** * The list of {@link AudioDeviceCallback} objects to receive add/remove notifications. */ private ArrayMap<AudioDeviceCallback, NativeEventHandlerDelegate> mDeviceCallbacks = new ArrayMap<AudioDeviceCallback, NativeEventHandlerDelegate>(); /** * The following are flags to allow users of {@link AudioManager#getDevices(int)} to filter * the results list to only those device types they are interested in. */ /** * Specifies to the {@link AudioManager#getDevices(int)} method to include * source (i.e. input) audio devices. */ public static final int GET_DEVICES_INPUTS = 0x0001; /** * Specifies to the {@link AudioManager#getDevices(int)} method to include * sink (i.e. output) audio devices. */ public static final int GET_DEVICES_OUTPUTS = 0x0002; /** * Specifies to the {@link AudioManager#getDevices(int)} method to include both * source and sink devices. */ public static final int GET_DEVICES_ALL = GET_DEVICES_OUTPUTS | GET_DEVICES_INPUTS; /** * Determines if a given AudioDevicePort meets the specified filter criteria. * @param port The port to test. * @param flags A set of bitflags specifying the criteria to test. * @see {@link GET_DEVICES_OUTPUTS} and {@link GET_DEVICES_INPUTS} **/ private static boolean checkFlags(AudioDevicePort port, int flags) { return port.role() == AudioPort.ROLE_SINK && (flags & GET_DEVICES_OUTPUTS) != 0 || port.role() == AudioPort.ROLE_SOURCE && (flags & GET_DEVICES_INPUTS) != 0; } private static boolean checkTypes(AudioDevicePort port) { return AudioDeviceInfo.convertInternalDeviceToDeviceType(port.type()) != AudioDeviceInfo.TYPE_UNKNOWN && port.type() != AudioSystem.DEVICE_IN_BACK_MIC; } /** * Returns an array of {@link AudioDeviceInfo} objects corresponding to the audio devices * currently connected to the system and meeting the criteria specified in the * <code>flags</code> parameter. * @param flags A set of bitflags specifying the criteria to test. * @see {@link GET_DEVICES_OUTPUTS}, {@link GET_DEVICES_INPUTS} and {@link GET_DEVICES_ALL}. * @return A (possibly zero-length) array of AudioDeviceInfo objects. */ public AudioDeviceInfo[] getDevices(int flags) { return getDevicesStatic(flags); } /** * Does the actual computation to generate an array of (externally-visible) AudioDeviceInfo * objects from the current (internal) AudioDevicePort list. */ private static AudioDeviceInfo[] infoListFromPortList(ArrayList<AudioDevicePort> ports, int flags) { // figure out how many AudioDeviceInfo we need space for... int numRecs = 0; for (AudioDevicePort port : ports) { if (checkTypes(port) && checkFlags(port, flags)) { numRecs++; } } // Now load them up... AudioDeviceInfo[] deviceList = new AudioDeviceInfo[numRecs]; int slot = 0; for (AudioDevicePort port : ports) { if (checkTypes(port) && checkFlags(port, flags)) { deviceList[slot++] = new AudioDeviceInfo(port); } } return deviceList; } /* * Calculate the list of ports that are in ports_B, but not in ports_A. This is used by * the add/remove callback mechanism to provide a list of the newly added or removed devices * rather than the whole list and make the app figure it out. * Note that calling this method with: * ports_A == PREVIOUS_ports and ports_B == CURRENT_ports will calculated ADDED ports. * ports_A == CURRENT_ports and ports_B == PREVIOUS_ports will calculated REMOVED ports. */ private static AudioDeviceInfo[] calcListDeltas( ArrayList<AudioDevicePort> ports_A, ArrayList<AudioDevicePort> ports_B, int flags) { ArrayList<AudioDevicePort> delta_ports = new ArrayList<AudioDevicePort>(); AudioDevicePort cur_port = null; for (int cur_index = 0; cur_index < ports_B.size(); cur_index++) { boolean cur_port_found = false; cur_port = ports_B.get(cur_index); for (int prev_index = 0; prev_index < ports_A.size() && !cur_port_found; prev_index++) { cur_port_found = (cur_port.id() == ports_A.get(prev_index).id()); } if (!cur_port_found) { delta_ports.add(cur_port); } } return infoListFromPortList(delta_ports, flags); } /** * Generates a list of AudioDeviceInfo objects corresponding to the audio devices currently * connected to the system and meeting the criteria specified in the <code>flags</code> * parameter. * This is an internal function. The public API front is getDevices(int). * @param flags A set of bitflags specifying the criteria to test. * @see {@link GET_DEVICES_OUTPUTS}, {@link GET_DEVICES_INPUTS} and {@link GET_DEVICES_ALL}. * @return A (possibly zero-length) array of AudioDeviceInfo objects. * @hide */ public static AudioDeviceInfo[] getDevicesStatic(int flags) { ArrayList<AudioDevicePort> ports = new ArrayList<AudioDevicePort>(); int status = AudioManager.listAudioDevicePorts(ports); if (status != AudioManager.SUCCESS) { // fail and bail! return new AudioDeviceInfo[0]; // Always return an array. } return infoListFromPortList(ports, flags); } /** * Registers an {@link AudioDeviceCallback} object to receive notifications of changes * to the set of connected audio devices. * @param callback The {@link AudioDeviceCallback} object to receive connect/disconnect * notifications. * @param handler Specifies the {@link Handler} object for the thread on which to execute * the callback. If <code>null</code>, the {@link Handler} associated with the main * {@link Looper} will be used. */ public void registerAudioDeviceCallback(AudioDeviceCallback callback, android.os.Handler handler) { synchronized (mDeviceCallbacks) { if (callback != null && !mDeviceCallbacks.containsKey(callback)) { if (mDeviceCallbacks.size() == 0) { if (mPortListener == null) { mPortListener = new OnAmPortUpdateListener(); } registerAudioPortUpdateListener(mPortListener); } NativeEventHandlerDelegate delegate = new NativeEventHandlerDelegate(callback, handler); mDeviceCallbacks.put(callback, delegate); broadcastDeviceListChange(delegate.getHandler()); } } } /** * Unregisters an {@link AudioDeviceCallback} object which has been previously registered * to receive notifications of changes to the set of connected audio devices. * @param callback The {@link AudioDeviceCallback} object that was previously registered * with {@link AudioManager#registerAudioDeviceCallback) to be unregistered. */ public void unregisterAudioDeviceCallback(AudioDeviceCallback callback) { synchronized (mDeviceCallbacks) { if (mDeviceCallbacks.containsKey(callback)) { mDeviceCallbacks.remove(callback); if (mDeviceCallbacks.size() == 0) { unregisterAudioPortUpdateListener(mPortListener); } } } } // Since we need to calculate the changes since THE LAST NOTIFICATION, and not since the // (unpredictable) last time updateAudioPortCache() was called by someone, keep a list // of the ports that exist at the time of the last notification. private ArrayList<AudioDevicePort> mPreviousPorts = new ArrayList<AudioDevicePort>(); /** * Internal method to compute and generate add/remove messages and then send to any * registered callbacks. */ private void broadcastDeviceListChange(Handler handler) { int status; // Get the new current set of ports ArrayList<AudioDevicePort> current_ports = new ArrayList<AudioDevicePort>(); status = AudioManager.listAudioDevicePorts(current_ports); if (status != AudioManager.SUCCESS) { return; } if (handler != null) { // This is the callback for the registration, so send the current list AudioDeviceInfo[] deviceList = infoListFromPortList(current_ports, GET_DEVICES_ALL); handler.sendMessage( Message.obtain(handler, MSG_DEVICES_CALLBACK_REGISTERED, deviceList)); } else { AudioDeviceInfo[] added_devices = calcListDeltas(mPreviousPorts, current_ports, GET_DEVICES_ALL); AudioDeviceInfo[] removed_devices = calcListDeltas(current_ports, mPreviousPorts, GET_DEVICES_ALL); if (added_devices.length != 0 || removed_devices.length != 0) { synchronized (mDeviceCallbacks) { for (int i = 0; i < mDeviceCallbacks.size(); i++) { handler = mDeviceCallbacks.valueAt(i).getHandler(); if (handler != null) { if (added_devices.length != 0) { handler.sendMessage(Message.obtain(handler, MSG_DEVICES_DEVICES_ADDED, added_devices)); } if (removed_devices.length != 0) { handler.sendMessage(Message.obtain(handler, MSG_DEVICES_DEVICES_REMOVED, removed_devices)); } } } } } } mPreviousPorts = current_ports; } /** * Handles Port list update notifications from the AudioManager */ private class OnAmPortUpdateListener implements AudioManager.OnAudioPortUpdateListener { static final String TAG = "OnAmPortUpdateListener"; public void onAudioPortListUpdate(AudioPort[] portList) { broadcastDeviceListChange(null); } /** * Callback method called upon audio patch list update. * Note: We don't do anything with Patches at this time, so ignore this notification. * @param patchList the updated list of audio patches. */ public void onAudioPatchListUpdate(AudioPatch[] patchList) {} /** * Callback method called when the mediaserver dies */ public void onServiceDied() { broadcastDeviceListChange(null); } } //--------------------------------------------------------- // Inner classes //-------------------- /** * Helper class to handle the forwarding of native events to the appropriate listener * (potentially) handled in a different thread. */ private class NativeEventHandlerDelegate { private final Handler mHandler; NativeEventHandlerDelegate(final AudioDeviceCallback callback, Handler handler) { // find the looper for our new event handler Looper looper; if (handler != null) { looper = handler.getLooper(); } else { // no given handler, use the looper the addListener call was called in looper = Looper.getMainLooper(); } // construct the event handler with this looper if (looper != null) { // implement the event handler delegate mHandler = new Handler(looper) { @Override public void handleMessage(Message msg) { switch(msg.what) { case MSG_DEVICES_CALLBACK_REGISTERED: case MSG_DEVICES_DEVICES_ADDED: if (callback != null) { callback.onAudioDevicesAdded((AudioDeviceInfo[])msg.obj); } break; case MSG_DEVICES_DEVICES_REMOVED: if (callback != null) { callback.onAudioDevicesRemoved((AudioDeviceInfo[])msg.obj); } break; default: Log.e(TAG, "Unknown native event type: " + msg.what); break; } } }; } else { mHandler = null; } } Handler getHandler() { return mHandler; } } }