Java tutorial
/***************************************************************************** * AudioService.java ***************************************************************************** * Copyright 2011-2013 VLC authors and VideoLAN * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************/ package org.videolan.vlc.audio; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.net.URI; import java.net.URISyntaxException; import java.util.ArrayList; import java.util.Calendar; import java.util.HashMap; import java.util.List; import java.util.Locale; import java.util.Random; import java.util.Stack; import org.videolan.libvlc.EventHandler; import org.videolan.libvlc.LibVLC; import org.videolan.libvlc.LibVlcException; import org.videolan.libvlc.LibVlcUtil; import org.videolan.libvlc.Media; import org.videolan.libvlc.MediaList; import org.videolan.vlc.MediaDatabase; import org.videolan.vlc.R; import org.videolan.vlc.RemoteControlClientReceiver; import org.videolan.vlc.VLCApplication; import org.videolan.vlc.gui.MainActivity; import org.videolan.vlc.gui.audio.AudioUtil; import org.videolan.vlc.gui.video.VideoPlayerActivity; import org.videolan.vlc.interfaces.IAudioService; import org.videolan.vlc.interfaces.IAudioServiceCallback; import org.videolan.vlc.util.AndroidDevices; import org.videolan.vlc.util.VLCInstance; import org.videolan.vlc.util.WeakHandler; import android.annotation.TargetApi; import android.app.Notification; import android.app.PendingIntent; import android.app.Service; import android.content.BroadcastReceiver; import android.content.ComponentName; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.content.SharedPreferences; import android.graphics.Bitmap; import android.media.AudioManager; import android.media.AudioManager.OnAudioFocusChangeListener; import android.media.MediaMetadataRetriever; import android.media.RemoteControlClient; import android.media.RemoteControlClient.MetadataEditor; import android.os.Build; import android.os.Bundle; import android.os.Handler; import android.os.IBinder; import android.os.Message; import android.os.PowerManager; import android.os.RemoteException; import android.preference.PreferenceManager; import android.support.v4.app.NotificationCompat; import android.telephony.TelephonyManager; import android.util.Log; import android.widget.RemoteViews; import android.widget.Toast; public class AudioService extends Service { private static final String TAG = "VLC/AudioService"; private static final int SHOW_PROGRESS = 0; private static final int SHOW_TOAST = 1; public static final String START_FROM_NOTIFICATION = "from_notification"; public static final String ACTION_REMOTE_GENERIC = "org.videolan.vlc.remote."; public static final String ACTION_REMOTE_BACKWARD = "org.videolan.vlc.remote.Backward"; public static final String ACTION_REMOTE_PLAY = "org.videolan.vlc.remote.Play"; public static final String ACTION_REMOTE_PLAYPAUSE = "org.videolan.vlc.remote.PlayPause"; public static final String ACTION_REMOTE_PAUSE = "org.videolan.vlc.remote.Pause"; public static final String ACTION_REMOTE_STOP = "org.videolan.vlc.remote.Stop"; public static final String ACTION_REMOTE_FORWARD = "org.videolan.vlc.remote.Forward"; public static final String ACTION_REMOTE_LAST_PLAYLIST = "org.videolan.vlc.remote.LastPlaylist"; public static final String ACTION_WIDGET_INIT = "org.videolan.vlc.widget.INIT"; public static final String ACTION_WIDGET_UPDATE = "org.videolan.vlc.widget.UPDATE"; public static final String ACTION_WIDGET_UPDATE_COVER = "org.videolan.vlc.widget.UPDATE_COVER"; public static final String ACTION_WIDGET_UPDATE_POSITION = "org.videolan.vlc.widget.UPDATE_POSITION"; public static final String WIDGET_PACKAGE = "org.videolan.vlc"; public static final String WIDGET_CLASS = "org.videolan.vlc.widget.VLCAppWidgetProvider"; public static final int CURRENT_ITEM = 1; public static final int PREVIOUS_ITEM = 2; public static final int NEXT_ITEM = 3; private LibVLC mLibVLC; private HashMap<IAudioServiceCallback, Integer> mCallback; private EventHandler mEventHandler; private OnAudioFocusChangeListener audioFocusListener; private boolean mDetectHeadset = true; private PowerManager.WakeLock mWakeLock; // Index management /** * Stack of previously played indexes, used in shuffle mode */ private Stack<Integer> mPrevious; private int mCurrentIndex; // Set to -1 if no media is currently loaded private int mPrevIndex; // Set to -1 if no previous media private int mNextIndex; // Set to -1 if no next media // Playback management private boolean mShuffling = false; private RepeatType mRepeating = RepeatType.None; private Random mRandom = null; // Used in shuffling process // RemoteControlClient-related /** * RemoteControlClient is for lock screen playback control. */ private RemoteControlClient mRemoteControlClient = null; private RemoteControlClientReceiver mRemoteControlClientReceiver = null; /** * Last widget position update timestamp */ private long mWidgetPositionTimestamp = Calendar.getInstance().getTimeInMillis(); private ComponentName mRemoteControlClientReceiverComponent; @Override public void onCreate() { super.onCreate(); // Get libVLC instance try { mLibVLC = VLCInstance.getLibVlcInstance(); } catch (LibVlcException e) { e.printStackTrace(); } mCallback = new HashMap<IAudioServiceCallback, Integer>(); mCurrentIndex = -1; mPrevIndex = -1; mNextIndex = -1; mPrevious = new Stack<Integer>(); mEventHandler = EventHandler.getInstance(); mRemoteControlClientReceiverComponent = new ComponentName(getPackageName(), RemoteControlClientReceiver.class.getName()); // Make sure the audio player will acquire a wake-lock while playing. If we don't do // that, the CPU might go to sleep while the song is playing, causing playback to stop. PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE); mWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); IntentFilter filter = new IntentFilter(); filter.setPriority(Integer.MAX_VALUE); filter.addAction(ACTION_REMOTE_BACKWARD); filter.addAction(ACTION_REMOTE_PLAYPAUSE); filter.addAction(ACTION_REMOTE_PLAY); filter.addAction(ACTION_REMOTE_PAUSE); filter.addAction(ACTION_REMOTE_STOP); filter.addAction(ACTION_REMOTE_FORWARD); filter.addAction(ACTION_REMOTE_LAST_PLAYLIST); filter.addAction(ACTION_WIDGET_INIT); filter.addAction(Intent.ACTION_HEADSET_PLUG); filter.addAction(AudioManager.ACTION_AUDIO_BECOMING_NOISY); filter.addAction(VLCApplication.SLEEP_INTENT); registerReceiver(serviceReceiver, filter); final SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this); boolean stealRemoteControl = pref.getBoolean("enable_steal_remote_control", false); if (!LibVlcUtil.isFroyoOrLater() || stealRemoteControl) { /* Backward compatibility for API 7 */ filter = new IntentFilter(); if (stealRemoteControl) filter.setPriority(Integer.MAX_VALUE); filter.addAction(Intent.ACTION_MEDIA_BUTTON); mRemoteControlClientReceiver = new RemoteControlClientReceiver(); registerReceiver(mRemoteControlClientReceiver, filter); } } /** * Set up the remote control and tell the system we want to be the default receiver for the MEDIA buttons * @see http://android-developers.blogspot.fr/2010/06/allowing-applications-to-play-nicer.html */ @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) public void setUpRemoteControlClient() { Context context = VLCApplication.getAppContext(); AudioManager audioManager = (AudioManager) context.getSystemService(AUDIO_SERVICE); if (LibVlcUtil.isICSOrLater()) { audioManager.registerMediaButtonEventReceiver(mRemoteControlClientReceiverComponent); if (mRemoteControlClient == null) { Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); mediaButtonIntent.setComponent(mRemoteControlClientReceiverComponent); PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(context, 0, mediaButtonIntent, 0); // create and register the remote control client mRemoteControlClient = new RemoteControlClient(mediaPendingIntent); audioManager.registerRemoteControlClient(mRemoteControlClient); } mRemoteControlClient.setTransportControlFlags(RemoteControlClient.FLAG_KEY_MEDIA_PLAY | RemoteControlClient.FLAG_KEY_MEDIA_PAUSE | RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS | RemoteControlClient.FLAG_KEY_MEDIA_NEXT | RemoteControlClient.FLAG_KEY_MEDIA_STOP); } else if (LibVlcUtil.isFroyoOrLater()) { audioManager.registerMediaButtonEventReceiver(mRemoteControlClientReceiverComponent); } } /** * A function to control the Remote Control Client. It is needed for * compatibility with devices below Ice Cream Sandwich (4.0). * * @param p Playback state */ @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) private void setRemoteControlClientPlaybackState(int state) { if (!LibVlcUtil.isICSOrLater() || mRemoteControlClient == null) return; switch (state) { case EventHandler.MediaPlayerPlaying: mRemoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_PLAYING); break; case EventHandler.MediaPlayerPaused: mRemoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_PAUSED); break; case EventHandler.MediaPlayerStopped: mRemoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_STOPPED); break; } } @Override public int onStartCommand(Intent intent, int flags, int startId) { if (intent == null) return START_STICKY; updateWidget(this); return super.onStartCommand(intent, flags, startId); } @Override public void onDestroy() { super.onDestroy(); stop(); if (mWakeLock.isHeld()) mWakeLock.release(); unregisterReceiver(serviceReceiver); if (mRemoteControlClientReceiver != null) { unregisterReceiver(mRemoteControlClientReceiver); mRemoteControlClientReceiver = null; } } @Override public IBinder onBind(Intent intent) { return mInterface; } @TargetApi(Build.VERSION_CODES.FROYO) private void changeAudioFocus(boolean gain) { if (!LibVlcUtil.isFroyoOrLater()) // NOP if not supported return; if (audioFocusListener == null) { audioFocusListener = new OnAudioFocusChangeListener() { @Override public void onAudioFocusChange(int focusChange) { LibVLC libVLC = LibVLC.getExistingInstance(); switch (focusChange) { case AudioManager.AUDIOFOCUS_LOSS: if (libVLC.isPlaying()) libVLC.pause(); break; case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT: case AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK: /* * Lower the volume to 36% to "duck" when an alert or something * needs to be played. */ libVLC.setVolume(36); break; case AudioManager.AUDIOFOCUS_GAIN: case AudioManager.AUDIOFOCUS_GAIN_TRANSIENT: case AudioManager.AUDIOFOCUS_GAIN_TRANSIENT_MAY_DUCK: libVLC.setVolume(100); break; } } }; } AudioManager am = (AudioManager) getSystemService(AUDIO_SERVICE); if (gain) am.requestAudioFocus(audioFocusListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN); else am.abandonAudioFocus(audioFocusListener); } private final BroadcastReceiver serviceReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); int state = intent.getIntExtra("state", 0); if (mLibVLC == null) { Log.w(TAG, "Intent received, but VLC is not loaded, skipping."); return; } // skip all headsets events if there is a call TelephonyManager telManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE); if (telManager != null && telManager.getCallState() != TelephonyManager.CALL_STATE_IDLE) return; /* * Launch the activity if needed */ if (action.startsWith(ACTION_REMOTE_GENERIC) && !mLibVLC.isPlaying() && !hasCurrentMedia()) { Intent iVlc = new Intent(context, MainActivity.class); iVlc.putExtra(START_FROM_NOTIFICATION, true); iVlc.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP); context.startActivity(iVlc); } /* * Remote / headset control events */ if (action.equalsIgnoreCase(ACTION_REMOTE_PLAYPAUSE)) { if (mLibVLC.isPlaying() && hasCurrentMedia()) pause(); else if (!mLibVLC.isPlaying() && hasCurrentMedia()) play(); } else if (action.equalsIgnoreCase(ACTION_REMOTE_PLAY)) { if (!mLibVLC.isPlaying() && hasCurrentMedia()) play(); } else if (action.equalsIgnoreCase(ACTION_REMOTE_PAUSE)) { if (mLibVLC.isPlaying() && hasCurrentMedia()) pause(); } else if (action.equalsIgnoreCase(ACTION_REMOTE_BACKWARD)) { previous(); } else if (action.equalsIgnoreCase(ACTION_REMOTE_STOP)) { stop(); } else if (action.equalsIgnoreCase(ACTION_REMOTE_FORWARD)) { next(); } else if (action.equalsIgnoreCase(ACTION_REMOTE_LAST_PLAYLIST)) { loadLastPlaylist(); } else if (action.equalsIgnoreCase(ACTION_WIDGET_INIT)) { updateWidget(context); } /* * headset plug events */ if (mDetectHeadset) { if (action.equalsIgnoreCase(AudioManager.ACTION_AUDIO_BECOMING_NOISY)) { Log.i(TAG, "Headset Removed."); if (mLibVLC.isPlaying() && hasCurrentMedia()) pause(); } else if (action.equalsIgnoreCase(Intent.ACTION_HEADSET_PLUG) && state != 0) { Log.i(TAG, "Headset Inserted."); if (!mLibVLC.isPlaying() && hasCurrentMedia()) play(); } } /* * Sleep */ if (action.equalsIgnoreCase(VLCApplication.SLEEP_INTENT)) { stop(); } } }; /** * Handle libvlc asynchronous events */ private final Handler mVlcEventHandler = new AudioServiceEventHandler(this); private static class AudioServiceEventHandler extends WeakHandler<AudioService> { public AudioServiceEventHandler(AudioService fragment) { super(fragment); } @Override public void handleMessage(Message msg) { AudioService service = getOwner(); if (service == null) return; switch (msg.getData().getInt("event")) { case EventHandler.MediaParsedChanged: Log.i(TAG, "MediaParsedChanged"); break; case EventHandler.MediaPlayerPlaying: Log.i(TAG, "MediaPlayerPlaying"); service.executeUpdate(); service.executeUpdateProgress(); String location = service.mLibVLC.getMediaList().getMRL(service.mCurrentIndex); long length = service.mLibVLC.getLength(); MediaDatabase dbManager = MediaDatabase.getInstance(); Media m = dbManager.getMedia(location); /** * 1) There is a media to update * 2) It has a length of 0 * (dynamic track loading - most notably the OGG container) * 3) We were able to get a length even after parsing * (don't want to replace a 0 with a 0) */ if (m != null && m.getLength() == 0 && length > 0) { Log.d(TAG, "Updating audio file length"); dbManager.updateMedia(location, MediaDatabase.mediaColumn.MEDIA_LENGTH, length); } service.changeAudioFocus(true); service.setRemoteControlClientPlaybackState(EventHandler.MediaPlayerPlaying); service.showNotification(); if (!service.mWakeLock.isHeld()) service.mWakeLock.acquire(); break; case EventHandler.MediaPlayerPaused: Log.i(TAG, "MediaPlayerPaused"); service.executeUpdate(); service.executeUpdateProgress(); service.showNotification(); service.setRemoteControlClientPlaybackState(EventHandler.MediaPlayerPaused); if (service.mWakeLock.isHeld()) service.mWakeLock.release(); break; case EventHandler.MediaPlayerStopped: Log.i(TAG, "MediaPlayerStopped"); service.executeUpdate(); service.executeUpdateProgress(); service.setRemoteControlClientPlaybackState(EventHandler.MediaPlayerStopped); if (service.mWakeLock.isHeld()) service.mWakeLock.release(); break; case EventHandler.MediaPlayerEndReached: Log.i(TAG, "MediaPlayerEndReached"); service.executeUpdate(); service.executeUpdateProgress(); service.determinePrevAndNextIndices(true); service.next(); if (service.mWakeLock.isHeld()) service.mWakeLock.release(); break; case EventHandler.MediaPlayerVout: if (msg.getData().getInt("data") > 0) { service.handleVout(); } break; case EventHandler.MediaPlayerPositionChanged: float pos = msg.getData().getFloat("data"); service.updateWidgetPosition(service, pos); break; case EventHandler.MediaPlayerEncounteredError: service.showToast(service.getString(R.string.invalid_location, service.mLibVLC.getMediaList().getMRL(service.mCurrentIndex)), Toast.LENGTH_SHORT); service.executeUpdate(); service.executeUpdateProgress(); service.next(); if (service.mWakeLock.isHeld()) service.mWakeLock.release(); break; default: Log.e(TAG, "Event not handled"); break; } } }; private final Handler mListEventHandler = new MediaListEventHandler(this); private static class MediaListEventHandler extends WeakHandler<AudioService> { // Don't clobber mCurrentIndex when MediaList is expanding itself. boolean expanding = false; public MediaListEventHandler(AudioService audioService) { super(audioService); } @Override public void handleMessage(Message msg) { AudioService service = getOwner(); if (service == null) return; int index; switch (msg.getData().getInt("event")) { case EventHandler.CustomMediaListItemAdded: Log.i(TAG, "CustomMediaListItemAdded"); index = msg.getData().getInt("item_index"); if (service.mCurrentIndex >= index && !expanding) service.mCurrentIndex++; service.determinePrevAndNextIndices(); service.executeUpdate(); break; case EventHandler.CustomMediaListItemDeleted: Log.i(TAG, "CustomMediaListItemDeleted"); index = msg.getData().getInt("item_index"); if (service.mCurrentIndex == index && !expanding) { // The current item has been deleted service.mCurrentIndex--; service.determinePrevAndNextIndices(); if (service.mNextIndex != -1) service.next(); else if (service.mCurrentIndex != -1) service.mLibVLC.playIndex(service.mCurrentIndex); else service.stop(); break; } if (service.mCurrentIndex > index && !expanding) service.mCurrentIndex--; service.determinePrevAndNextIndices(); service.executeUpdate(); break; case EventHandler.CustomMediaListItemMoved: Log.i(TAG, "CustomMediaListItemMoved"); int positionStart = msg.getData().getInt("index_before"); int positionEnd = msg.getData().getInt("index_after"); if (service.mCurrentIndex == positionStart) { service.mCurrentIndex = positionEnd; if (positionEnd > positionStart) service.mCurrentIndex--; } else if (positionStart > service.mCurrentIndex && positionEnd <= service.mCurrentIndex) service.mCurrentIndex++; else if (positionStart < service.mCurrentIndex && positionEnd > service.mCurrentIndex) service.mCurrentIndex--; // If we are in random mode, we completely reset the stored previous track // as their indices changed. service.mPrevious.clear(); service.determinePrevAndNextIndices(); service.executeUpdate(); break; case EventHandler.CustomMediaListExpanding: expanding = true; break; case EventHandler.CustomMediaListExpandingEnd: expanding = false; break; } } }; private void handleVout() { if (!hasCurrentMedia()) return; Log.i(TAG, "Obtained video track"); String title = getCurrentMedia().getTitle(); String MRL = mLibVLC.getMediaList().getMRL(mCurrentIndex); int index = mCurrentIndex; mCurrentIndex = -1; mEventHandler.removeHandler(mVlcEventHandler); // Preserve playback when switching to video hideNotification(false); // Switch to the video player & don't lose the currently playing stream VideoPlayerActivity.start(VLCApplication.getAppContext(), MRL, title, index, true); } private void executeUpdate() { executeUpdate(true); } private void executeUpdate(Boolean updateWidget) { for (IAudioServiceCallback callback : mCallback.keySet()) { try { callback.update(); } catch (RemoteException e) { e.printStackTrace(); } } if (updateWidget) updateWidget(this); } private void executeUpdateProgress() { for (IAudioServiceCallback callback : mCallback.keySet()) { try { callback.updateProgress(); } catch (RemoteException e) { e.printStackTrace(); } } } /** * Return the current media. * * @return The current media or null if there is not any. */ private Media getCurrentMedia() { return mLibVLC.getMediaList().getMedia(mCurrentIndex); } /** * Alias for mCurrentIndex >= 0 * * @return True if a media is currently loaded, false otherwise */ private boolean hasCurrentMedia() { return mCurrentIndex >= 0 && mCurrentIndex < mLibVLC.getMediaList().size(); } private final Handler mHandler = new AudioServiceHandler(this); private static class AudioServiceHandler extends WeakHandler<AudioService> { public AudioServiceHandler(AudioService fragment) { super(fragment); } @Override public void handleMessage(Message msg) { AudioService service = getOwner(); if (service == null) return; switch (msg.what) { case SHOW_PROGRESS: if (service.mCallback.size() > 0) { removeMessages(SHOW_PROGRESS); service.executeUpdateProgress(); sendEmptyMessageDelayed(SHOW_PROGRESS, 1000); } break; case SHOW_TOAST: final Bundle bundle = msg.getData(); final String text = bundle.getString("text"); final int duration = bundle.getInt("duration"); Toast.makeText(VLCApplication.getAppContext(), text, duration).show(); break; } } }; @TargetApi(Build.VERSION_CODES.JELLY_BEAN) private void showNotification() { try { Media media = getCurrentMedia(); if (media == null) return; Bitmap cover = AudioUtil.getCover(this, media, 64); String title = media.getTitle(); String artist = media.getArtist(); String album = media.getAlbum(); Notification notification; // add notification to status bar NotificationCompat.Builder builder = new NotificationCompat.Builder(this) .setSmallIcon(R.drawable.ic_stat_vlc).setTicker(title + " - " + artist).setAutoCancel(false) .setOngoing(true); Intent notificationIntent = new Intent(this, MainActivity.class); notificationIntent.setAction(MainActivity.ACTION_SHOW_PLAYER); notificationIntent.addCategory(Intent.CATEGORY_LAUNCHER); notificationIntent.putExtra(START_FROM_NOTIFICATION, true); PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT); if (LibVlcUtil.isJellyBeanOrLater()) { Intent iBackward = new Intent(ACTION_REMOTE_BACKWARD); Intent iPlay = new Intent(ACTION_REMOTE_PLAYPAUSE); Intent iForward = new Intent(ACTION_REMOTE_FORWARD); Intent iStop = new Intent(ACTION_REMOTE_STOP); PendingIntent piBackward = PendingIntent.getBroadcast(this, 0, iBackward, PendingIntent.FLAG_UPDATE_CURRENT); PendingIntent piPlay = PendingIntent.getBroadcast(this, 0, iPlay, PendingIntent.FLAG_UPDATE_CURRENT); PendingIntent piForward = PendingIntent.getBroadcast(this, 0, iForward, PendingIntent.FLAG_UPDATE_CURRENT); PendingIntent piStop = PendingIntent.getBroadcast(this, 0, iStop, PendingIntent.FLAG_UPDATE_CURRENT); RemoteViews view = new RemoteViews(getPackageName(), R.layout.notification); if (cover != null) view.setImageViewBitmap(R.id.cover, cover); view.setTextViewText(R.id.songName, title); view.setTextViewText(R.id.artist, artist); view.setImageViewResource(R.id.play_pause, mLibVLC.isPlaying() ? R.drawable.ic_pause_w : R.drawable.ic_play_w); view.setOnClickPendingIntent(R.id.play_pause, piPlay); view.setOnClickPendingIntent(R.id.forward, piForward); view.setOnClickPendingIntent(R.id.stop, piStop); view.setOnClickPendingIntent(R.id.content, pendingIntent); RemoteViews view_expanded = new RemoteViews(getPackageName(), R.layout.notification_expanded); if (cover != null) view_expanded.setImageViewBitmap(R.id.cover, cover); view_expanded.setTextViewText(R.id.songName, title); view_expanded.setTextViewText(R.id.artist, artist); view_expanded.setTextViewText(R.id.album, album); view_expanded.setImageViewResource(R.id.play_pause, mLibVLC.isPlaying() ? R.drawable.ic_pause_w : R.drawable.ic_play_w); view_expanded.setOnClickPendingIntent(R.id.backward, piBackward); view_expanded.setOnClickPendingIntent(R.id.play_pause, piPlay); view_expanded.setOnClickPendingIntent(R.id.forward, piForward); view_expanded.setOnClickPendingIntent(R.id.stop, piStop); view_expanded.setOnClickPendingIntent(R.id.content, pendingIntent); notification = builder.build(); notification.contentView = view; notification.bigContentView = view_expanded; } else { builder.setLargeIcon(cover).setContentTitle(title) .setContentText(LibVlcUtil.isJellyBeanOrLater() ? artist : media.getSubtitle()) .setContentInfo(album).setContentIntent(pendingIntent); notification = builder.build(); } startService(new Intent(this, AudioService.class)); startForeground(3, notification); } catch (NoSuchMethodError e) { // Compat library is wrong on 3.2 // http://code.google.com/p/android/issues/detail?id=36359 // http://code.google.com/p/android/issues/detail?id=36502 } } private void hideNotification() { hideNotification(true); } /** * Hides the VLC notification and stops the service. * * @param stopPlayback True to also stop playback at the same time. Set to false to preserve playback (e.g. for vout events) */ private void hideNotification(boolean stopPlayback) { stopForeground(true); if (stopPlayback) stopSelf(); } private void pause() { setUpRemoteControlClient(); mHandler.removeMessages(SHOW_PROGRESS); // hideNotification(); <-- see event handler mLibVLC.pause(); } private void play() { if (hasCurrentMedia()) { setUpRemoteControlClient(); mLibVLC.play(); mHandler.sendEmptyMessage(SHOW_PROGRESS); showNotification(); updateWidget(this); } } private void stop() { mLibVLC.stop(); mEventHandler.removeHandler(mVlcEventHandler); mLibVLC.getMediaList().getEventHandler().removeHandler(mListEventHandler); setRemoteControlClientPlaybackState(EventHandler.MediaPlayerStopped); mCurrentIndex = -1; mPrevious.clear(); mHandler.removeMessages(SHOW_PROGRESS); hideNotification(); executeUpdate(); executeUpdateProgress(); changeAudioFocus(false); } private void determinePrevAndNextIndices() { determinePrevAndNextIndices(false); } private void determinePrevAndNextIndices(boolean expand) { mNextIndex = expand ? mLibVLC.expand() : -1; mPrevIndex = -1; if (mNextIndex == -1) { // No subitems; play the next item. int size = mLibVLC.getMediaList().size(); // Repeating once doesn't change the index if (mRepeating == RepeatType.Once) { mPrevIndex = mNextIndex = mCurrentIndex; } else { if (mShuffling) { if (mPrevious.size() > 0) mPrevIndex = mPrevious.peek(); // If we've played all songs already in shuffle, then either // reshuffle or stop (depending on RepeatType). if (mPrevious.size() + 1 == size) { if (mRepeating == RepeatType.None) { mNextIndex = -1; return; } else { mPrevious.clear(); } } if (mRandom == null) mRandom = new Random(); // Find a new index not in mPrevious. do { mNextIndex = mRandom.nextInt(size); } while (mNextIndex == mCurrentIndex || mPrevious.contains(mNextIndex)); } else { // normal playback if (mCurrentIndex > 0) mPrevIndex = mCurrentIndex - 1; if (mCurrentIndex + 1 < size) mNextIndex = mCurrentIndex + 1; else { if (mRepeating == RepeatType.None) { mNextIndex = -1; } else { mNextIndex = 0; } } } } } } private void next() { mPrevious.push(mCurrentIndex); mCurrentIndex = mNextIndex; int size = mLibVLC.getMediaList().size(); if (size == 0 || mCurrentIndex < 0 || mCurrentIndex >= size) { Log.w(TAG, "Warning: invalid next index, aborted !"); stop(); return; } mLibVLC.playIndex(mCurrentIndex); mHandler.sendEmptyMessage(SHOW_PROGRESS); setUpRemoteControlClient(); showNotification(); updateWidget(this); updateRemoteControlClientMetadata(); saveCurrentMedia(); determinePrevAndNextIndices(); } @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH) private void updateRemoteControlClientMetadata() { if (!LibVlcUtil.isICSOrLater()) // NOP check return; Media media = getCurrentMedia(); if (mRemoteControlClient != null && media != null) { MetadataEditor editor = mRemoteControlClient.editMetadata(true); editor.putString(MediaMetadataRetriever.METADATA_KEY_ALBUM, media.getAlbum()); editor.putString(MediaMetadataRetriever.METADATA_KEY_ARTIST, media.getArtist()); editor.putString(MediaMetadataRetriever.METADATA_KEY_GENRE, media.getGenre()); editor.putString(MediaMetadataRetriever.METADATA_KEY_TITLE, media.getTitle()); editor.putLong(MediaMetadataRetriever.METADATA_KEY_DURATION, media.getLength()); // Copy the cover bitmap because the RemonteControlClient can recycle its artwork bitmap. Bitmap cover = getCover(); editor.putBitmap(MetadataEditor.BITMAP_KEY_ARTWORK, ((cover != null) ? cover.copy(cover.getConfig(), false) : null)); editor.apply(); } } private void previous() { mCurrentIndex = mPrevIndex; if (mPrevious.size() > 0) mPrevious.pop(); int size = mLibVLC.getMediaList().size(); if (size == 0 || mPrevIndex < 0 || mCurrentIndex >= size) { Log.w(TAG, "Warning: invalid previous index, aborted !"); stop(); return; } mLibVLC.playIndex(mCurrentIndex); mHandler.sendEmptyMessage(SHOW_PROGRESS); setUpRemoteControlClient(); showNotification(); updateWidget(this); updateRemoteControlClientMetadata(); saveCurrentMedia(); determinePrevAndNextIndices(); } private void shuffle() { if (mShuffling) mPrevious.clear(); mShuffling = !mShuffling; saveCurrentMedia(); determinePrevAndNextIndices(); } private void setRepeatType(int t) { mRepeating = RepeatType.values()[t]; determinePrevAndNextIndices(); } private Bitmap getCover() { Media media = getCurrentMedia(); return media != null ? AudioUtil.getCover(this, media, 512) : null; } private final IAudioService.Stub mInterface = new IAudioService.Stub() { @Override public void pause() throws RemoteException { AudioService.this.pause(); } @Override public void play() throws RemoteException { AudioService.this.play(); } @Override public void stop() throws RemoteException { AudioService.this.stop(); } @Override public boolean isPlaying() throws RemoteException { return mLibVLC.isPlaying(); } @Override public boolean isShuffling() { return mShuffling; } @Override public int getRepeatType() { return mRepeating.ordinal(); } @Override public boolean hasMedia() throws RemoteException { return hasCurrentMedia(); } @Override public String getAlbum() throws RemoteException { if (hasCurrentMedia()) return getCurrentMedia().getAlbum(); else return null; } @Override public String getArtist() throws RemoteException { if (hasCurrentMedia()) return getCurrentMedia().getArtist(); else return null; } @Override public String getArtistPrev() throws RemoteException { if (mPrevIndex != -1) return mLibVLC.getMediaList().getMedia(mPrevIndex).getArtist(); else return null; } @Override public String getArtistNext() throws RemoteException { if (mNextIndex != -1) return mLibVLC.getMediaList().getMedia(mNextIndex).getArtist(); else return null; } @Override public String getTitle() throws RemoteException { if (hasCurrentMedia()) return getCurrentMedia().getTitle(); else return null; } @Override public String getTitlePrev() throws RemoteException { if (mPrevIndex != -1) return mLibVLC.getMediaList().getMedia(mPrevIndex).getTitle(); else return null; } @Override public String getTitleNext() throws RemoteException { if (mNextIndex != -1) return mLibVLC.getMediaList().getMedia(mNextIndex).getTitle(); else return null; } @Override public Bitmap getCover() { if (hasCurrentMedia()) { return AudioService.this.getCover(); } return null; } @Override public Bitmap getCoverPrev() throws RemoteException { if (mPrevIndex != -1) return AudioUtil.getCover(AudioService.this, mLibVLC.getMediaList().getMedia(mPrevIndex), 64); else return null; } @Override public Bitmap getCoverNext() throws RemoteException { if (mNextIndex != -1) return AudioUtil.getCover(AudioService.this, mLibVLC.getMediaList().getMedia(mNextIndex), 64); else return null; } @Override public synchronized void addAudioCallback(IAudioServiceCallback cb) throws RemoteException { Integer count = mCallback.get(cb); if (count == null) count = 0; mCallback.put(cb, count + 1); if (hasCurrentMedia()) mHandler.sendEmptyMessage(SHOW_PROGRESS); } @Override public synchronized void removeAudioCallback(IAudioServiceCallback cb) throws RemoteException { Integer count = mCallback.get(cb); if (count == null) count = 0; if (count > 1) mCallback.put(cb, count - 1); else mCallback.remove(cb); } @Override public int getTime() throws RemoteException { return (int) mLibVLC.getTime(); } @Override public int getLength() throws RemoteException { return (int) mLibVLC.getLength(); } /** * Loads a selection of files (a non-user-supplied collection of media) * into the primary or "currently playing" playlist. * * @param mediaPathList A list of locations to load * @param position The position to start playing at * @param noVideo True to disable video, false otherwise * @throws RemoteException */ @Override public void load(List<String> mediaPathList, int position, boolean noVideo) throws RemoteException { Log.v(TAG, "Loading position " + ((Integer) position).toString() + " in " + mediaPathList.toString()); mEventHandler.addHandler(mVlcEventHandler); mLibVLC.getMediaList().getEventHandler().removeHandler(mListEventHandler); mLibVLC.setMediaList(); mLibVLC.getPrimaryMediaList().clear(); MediaList mediaList = mLibVLC.getMediaList(); mPrevious.clear(); MediaDatabase db = MediaDatabase.getInstance(); for (int i = 0; i < mediaPathList.size(); i++) { String location = mediaPathList.get(i); Media media = db.getMedia(location); if (media == null) { if (!validateLocation(location)) { Log.w(TAG, "Invalid location " + location); showToast(getResources().getString(R.string.invalid_location, location), Toast.LENGTH_SHORT); continue; } Log.v(TAG, "Creating on-the-fly Media object for " + location); media = new Media(mLibVLC, location); } mediaList.add(media, noVideo); } if (mLibVLC.getMediaList().size() == 0) { Log.w(TAG, "Warning: empty media list, nothing to play !"); return; } if (mLibVLC.getMediaList().size() > position && position >= 0) { mCurrentIndex = position; } else { Log.w(TAG, "Warning: positon " + position + " out of bounds"); mCurrentIndex = 0; } // Add handler after loading the list mLibVLC.getMediaList().getEventHandler().addHandler(mListEventHandler); mLibVLC.playIndex(mCurrentIndex); mHandler.sendEmptyMessage(SHOW_PROGRESS); setUpRemoteControlClient(); showNotification(); updateWidget(AudioService.this); updateRemoteControlClientMetadata(); AudioService.this.saveMediaList(); AudioService.this.saveCurrentMedia(); determinePrevAndNextIndices(); } /** * Use this function to play a media inside whatever MediaList LibVLC is following. * * Unlike load(), it does not import anything into the primary list. */ @Override public void playIndex(int index) { if (mLibVLC.getMediaList().size() == 0) { Log.w(TAG, "Warning: empty media list, nothing to play !"); return; } if (index >= 0 && index < mLibVLC.getMediaList().size()) { mCurrentIndex = index; } else { Log.w(TAG, "Warning: index " + index + " out of bounds"); mCurrentIndex = 0; } mEventHandler.addHandler(mVlcEventHandler); mLibVLC.playIndex(mCurrentIndex); mHandler.sendEmptyMessage(SHOW_PROGRESS); setUpRemoteControlClient(); showNotification(); updateWidget(AudioService.this); updateRemoteControlClientMetadata(); determinePrevAndNextIndices(); } /** * Use this function to show an URI in the audio interface WITHOUT * interrupting the stream. * * Mainly used by VideoPlayerActivity in response to loss of video track. */ @Override public void showWithoutParse(int index) throws RemoteException { String URI = mLibVLC.getMediaList().getMRL(index); Log.v(TAG, "Showing index " + index + " with playing URI " + URI); // Show an URI without interrupting/losing the current stream if (URI == null || !mLibVLC.isPlaying()) return; mEventHandler.addHandler(mVlcEventHandler); mCurrentIndex = index; // Notify everyone mHandler.sendEmptyMessage(SHOW_PROGRESS); showNotification(); determinePrevAndNextIndices(); executeUpdate(); executeUpdateProgress(); } /** * Append to the current existing playlist */ @Override public void append(List<String> mediaLocationList) throws RemoteException { if (!hasCurrentMedia()) { load(mediaLocationList, 0, false); return; } MediaDatabase db = MediaDatabase.getInstance(); for (int i = 0; i < mediaLocationList.size(); i++) { String location = mediaLocationList.get(i); Media media = db.getMedia(location); if (media == null) { if (!validateLocation(location)) { showToast(getResources().getString(R.string.invalid_location, location), Toast.LENGTH_SHORT); continue; } Log.v(TAG, "Creating on-the-fly Media object for " + location); media = new Media(mLibVLC, location); } mLibVLC.getMediaList().add(media); } AudioService.this.saveMediaList(); determinePrevAndNextIndices(); executeUpdate(); } /** * Move an item inside the playlist. */ @Override public void moveItem(int positionStart, int positionEnd) throws RemoteException { mLibVLC.getMediaList().move(positionStart, positionEnd); } @Override public void remove(int position) { mLibVLC.getMediaList().remove(position); } @Override public void removeLocation(String location) { mLibVLC.getMediaList().remove(location); } @Override public List<String> getMediaLocations() { ArrayList<String> medias = new ArrayList<String>(); for (int i = 0; i < mLibVLC.getMediaList().size(); i++) { medias.add(mLibVLC.getMediaList().getMRL(i)); } return medias; } @Override public String getCurrentMediaLocation() throws RemoteException { return mLibVLC.getMediaList().getMRL(mCurrentIndex); } @Override public void next() throws RemoteException { AudioService.this.next(); } @Override public void previous() throws RemoteException { AudioService.this.previous(); } @Override public void shuffle() throws RemoteException { AudioService.this.shuffle(); } @Override public void setRepeatType(int t) throws RemoteException { AudioService.this.setRepeatType(t); } @Override public void setTime(long time) throws RemoteException { mLibVLC.setTime(time); } @Override public boolean hasNext() throws RemoteException { if (mNextIndex != -1) return true; else return false; } @Override public boolean hasPrevious() throws RemoteException { if (mPrevIndex != -1) return true; else return false; } @Override public void detectHeadset(boolean enable) throws RemoteException { mDetectHeadset = enable; } @Override public float getRate() throws RemoteException { return mLibVLC.getRate(); } }; private void updateWidget(Context context) { Log.d(TAG, "Updating widget"); updateWidgetState(context); updateWidgetCover(context); } private void updateWidgetState(Context context) { Intent i = new Intent(); i.setClassName(WIDGET_PACKAGE, WIDGET_CLASS); i.setAction(ACTION_WIDGET_UPDATE); if (hasCurrentMedia()) { i.putExtra("title", getCurrentMedia().getTitle()); i.putExtra("artist", getCurrentMedia().getArtist()); } else { i.putExtra("title", context.getString(R.string.widget_name)); i.putExtra("artist", ""); } i.putExtra("isplaying", mLibVLC.isPlaying()); sendBroadcast(i); } private void updateWidgetCover(Context context) { Intent i = new Intent(); i.setClassName(WIDGET_PACKAGE, WIDGET_CLASS); i.setAction(ACTION_WIDGET_UPDATE_COVER); Bitmap cover = hasCurrentMedia() ? AudioUtil.getCover(this, getCurrentMedia(), 64) : null; i.putExtra("cover", cover); sendBroadcast(i); } private void updateWidgetPosition(Context context, float pos) { // no more than one widget update for each 1/50 of the song long timestamp = Calendar.getInstance().getTimeInMillis(); if (!hasCurrentMedia() || timestamp - mWidgetPositionTimestamp < getCurrentMedia().getLength() / 50) return; updateWidgetState(context); mWidgetPositionTimestamp = timestamp; Intent i = new Intent(); i.setClassName(WIDGET_PACKAGE, WIDGET_CLASS); i.setAction(ACTION_WIDGET_UPDATE_POSITION); i.putExtra("position", pos); sendBroadcast(i); } private synchronized void loadLastPlaylist() { if (!AndroidDevices.hasExternalStorage()) return; String line; FileInputStream input = null; BufferedReader br = null; int rowCount = 0; int position = 0; String currentMedia; List<String> mediaPathList = new ArrayList<String>(); try { // read CurrentMedia input = new FileInputStream(AudioUtil.CACHE_DIR + "/" + "CurrentMedia.txt"); br = new BufferedReader(new InputStreamReader(input)); currentMedia = br.readLine(); mShuffling = "1".equals(br.readLine()); br.close(); br = null; input.close(); // read MediaList input = new FileInputStream(AudioUtil.CACHE_DIR + "/" + "MediaList.txt"); br = new BufferedReader(new InputStreamReader(input)); while ((line = br.readLine()) != null) { mediaPathList.add(line); if (line.equals(currentMedia)) position = rowCount; rowCount++; } // load playlist mInterface.load(mediaPathList, position, false); } catch (Exception e) { e.printStackTrace(); } finally { try { if (br != null) br.close(); if (input != null) input.close(); } catch (IOException e) { e.printStackTrace(); } } } private synchronized void saveCurrentMedia() { if (!AndroidDevices.hasExternalStorage()) return; FileOutputStream output; BufferedWriter bw; try { output = new FileOutputStream(AudioUtil.CACHE_DIR + "/" + "CurrentMedia.txt"); bw = new BufferedWriter(new OutputStreamWriter(output)); bw.write(mLibVLC.getMediaList().getMRL(mCurrentIndex)); bw.write('\n'); bw.write(mShuffling ? "1" : "0"); bw.write('\n'); bw.close(); output.close(); } catch (IOException e) { e.printStackTrace(); } } private synchronized void saveMediaList() { if (!AndroidDevices.hasExternalStorage()) return; FileOutputStream output; BufferedWriter bw; try { output = new FileOutputStream(AudioUtil.CACHE_DIR + "/" + "MediaList.txt"); bw = new BufferedWriter(new OutputStreamWriter(output)); for (int i = 0; i < mLibVLC.getMediaList().size(); i++) { bw.write(mLibVLC.getMediaList().getMRL(i)); bw.write('\n'); } bw.close(); output.close(); } catch (IOException e) { e.printStackTrace(); } } private boolean validateLocation(String location) { /* Check if the MRL contains a scheme */ if (!location.matches("\\w+://.+")) location = "file://".concat(location); if (location.toLowerCase(Locale.ENGLISH).startsWith("file://")) { /* Ensure the file exists */ File f; try { f = new File(new URI(location)); } catch (URISyntaxException e) { return false; } if (!f.isFile()) return false; } return true; } private void showToast(String text, int duration) { Message msg = new Message(); Bundle bundle = new Bundle(); bundle.putString("text", text); bundle.putInt("duration", duration); msg.setData(bundle); msg.what = SHOW_TOAST; mHandler.sendMessage(msg); } }