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diff --git a/subsonic-main/src/main/java/net/sourceforge/subsonic/service/JukeboxService.java b/subsonic-main/src/main/java/net/sourceforge/subsonic/service/JukeboxService.java
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+/*
+ This file is part of Subsonic.
+
+ Subsonic 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 3 of the License, or
+ (at your option) any later version.
+
+ Subsonic 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 Subsonic. If not, see <http://www.gnu.org/licenses/>.
+
+ Copyright 2009 (C) Sindre Mehus
+ */
+package net.sourceforge.subsonic.service;
+
+import net.sourceforge.subsonic.Logger;
+import net.sourceforge.subsonic.domain.MediaFile;
+import net.sourceforge.subsonic.domain.Player;
+import net.sourceforge.subsonic.domain.PlayQueue;
+import net.sourceforge.subsonic.domain.Transcoding;
+import net.sourceforge.subsonic.domain.TransferStatus;
+import net.sourceforge.subsonic.domain.User;
+import net.sourceforge.subsonic.domain.VideoTranscodingSettings;
+import net.sourceforge.subsonic.service.jukebox.AudioPlayer;
+import net.sourceforge.subsonic.util.FileUtil;
+import org.apache.commons.io.IOUtils;
+
+import java.io.InputStream;
+
+import static net.sourceforge.subsonic.service.jukebox.AudioPlayer.State.EOM;
+
+/**
+ * Plays music on the local audio device.
+ *
+ * @author Sindre Mehus
+ */
+public class JukeboxService implements AudioPlayer.Listener {
+
+ private static final Logger LOG = Logger.getLogger(JukeboxService.class);
+
+ private AudioPlayer audioPlayer;
+ private TranscodingService transcodingService;
+ private AudioScrobblerService audioScrobblerService;
+ private StatusService statusService;
+ private SettingsService settingsService;
+ private SecurityService securityService;
+
+ private Player player;
+ private TransferStatus status;
+ private MediaFile currentPlayingFile;
+ private float gain = 0.5f;
+ private int offset;
+ private MediaFileService mediaFileService;
+
+ /**
+ * Updates the jukebox by starting or pausing playback on the local audio device.
+ *
+ * @param player The player in question.
+ * @param offset Start playing after this many seconds into the track.
+ */
+ public synchronized void updateJukebox(Player player, int offset) throws Exception {
+ User user = securityService.getUserByName(player.getUsername());
+ if (!user.isJukeboxRole()) {
+ LOG.warn(user.getUsername() + " is not authorized for jukebox playback.");
+ return;
+ }
+
+ if (player.getPlayQueue().getStatus() == PlayQueue.Status.PLAYING) {
+ this.player = player;
+ MediaFile result;
+ synchronized (player.getPlayQueue()) {
+ result = player.getPlayQueue().getCurrentFile();
+ }
+ play(result, offset);
+ } else {
+ if (audioPlayer != null) {
+ audioPlayer.pause();
+ }
+ }
+ }
+
+ private synchronized void play(MediaFile file, int offset) {
+ InputStream in = null;
+ try {
+
+ // Resume if possible.
+ boolean sameFile = file != null && file.equals(currentPlayingFile);
+ boolean paused = audioPlayer != null && audioPlayer.getState() == AudioPlayer.State.PAUSED;
+ if (sameFile && paused && offset == 0) {
+ audioPlayer.play();
+ } else {
+ this.offset = offset;
+ if (audioPlayer != null) {
+ audioPlayer.close();
+ if (currentPlayingFile != null) {
+ onSongEnd(currentPlayingFile);
+ }
+ }
+
+ if (file != null) {
+ TranscodingService.Parameters parameters = new TranscodingService.Parameters(file, new VideoTranscodingSettings(0, 0, offset));
+ String command = settingsService.getJukeboxCommand();
+ parameters.setTranscoding(new Transcoding(null, null, null, null, command, null, null, false));
+ in = transcodingService.getTranscodedInputStream(parameters);
+ audioPlayer = new AudioPlayer(in, this);
+ audioPlayer.setGain(gain);
+ audioPlayer.play();
+ onSongStart(file);
+ }
+ }
+
+ currentPlayingFile = file;
+
+ } catch (Exception x) {
+ LOG.error("Error in jukebox: " + x, x);
+ IOUtils.closeQuietly(in);
+ }
+ }
+
+ public synchronized void stateChanged(AudioPlayer audioPlayer, AudioPlayer.State state) {
+ if (state == EOM) {
+ player.getPlayQueue().next();
+ MediaFile result;
+ synchronized (player.getPlayQueue()) {
+ result = player.getPlayQueue().getCurrentFile();
+ }
+ play(result, 0);
+ }
+ }
+
+ public synchronized float getGain() {
+ return gain;
+ }
+
+ public synchronized int getPosition() {
+ return audioPlayer == null ? 0 : offset + audioPlayer.getPosition();
+ }
+
+ /**
+ * Returns the player which currently uses the jukebox.
+ *
+ * @return The player, may be {@code null}.
+ */
+ public Player getPlayer() {
+ return player;
+ }
+
+ private void onSongStart(MediaFile file) {
+ LOG.info(player.getUsername() + " starting jukebox for \"" + FileUtil.getShortPath(file.getFile()) + "\"");
+ status = statusService.createStreamStatus(player);
+ status.setFile(file.getFile());
+ status.addBytesTransfered(file.getFileSize());
+ mediaFileService.incrementPlayCount(file);
+ scrobble(file, false);
+ }
+
+ private void onSongEnd(MediaFile file) {
+ LOG.info(player.getUsername() + " stopping jukebox for \"" + FileUtil.getShortPath(file.getFile()) + "\"");
+ if (status != null) {
+ statusService.removeStreamStatus(status);
+ }
+ scrobble(file, true);
+ }
+
+ private void scrobble(MediaFile file, boolean submission) {
+ if (player.getClientId() == null) { // Don't scrobble REST players.
+ audioScrobblerService.register(file, player.getUsername(), submission);
+ }
+ }
+
+ public synchronized void setGain(float gain) {
+ this.gain = gain;
+ if (audioPlayer != null) {
+ audioPlayer.setGain(gain);
+ }
+ }
+
+ public void setTranscodingService(TranscodingService transcodingService) {
+ this.transcodingService = transcodingService;
+ }
+
+ public void setAudioScrobblerService(AudioScrobblerService audioScrobblerService) {
+ this.audioScrobblerService = audioScrobblerService;
+ }
+
+ public void setStatusService(StatusService statusService) {
+ this.statusService = statusService;
+ }
+
+ public void setSettingsService(SettingsService settingsService) {
+ this.settingsService = settingsService;
+ }
+
+ public void setSecurityService(SecurityService securityService) {
+ this.securityService = securityService;
+ }
+
+ public void setMediaFileService(MediaFileService mediaFileService) {
+ this.mediaFileService = mediaFileService;
+ }
+}