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203 lines
7.0 KiB
203 lines
7.0 KiB
/*
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This file is part of Libresonic.
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Libresonic is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Libresonic is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Libresonic. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2016 (C) Libresonic Authors
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Based upon Subsonic, Copyright 2009 (C) Sindre Mehus
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*/
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package org.libresonic.player.service;
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import org.apache.commons.io.IOUtils;
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import org.libresonic.player.domain.*;
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import org.libresonic.player.service.jukebox.AudioPlayer;
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import org.libresonic.player.util.FileUtil;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import java.io.InputStream;
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import static org.libresonic.player.service.jukebox.AudioPlayer.State.EOM;
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/**
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* Plays music on the local audio device.
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*
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* @author Sindre Mehus
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*/
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public class JukeboxService implements AudioPlayer.Listener {
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private static final Logger LOG = LoggerFactory.getLogger(JukeboxService.class);
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private AudioPlayer audioPlayer;
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private TranscodingService transcodingService;
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private AudioScrobblerService audioScrobblerService;
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private StatusService statusService;
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private SettingsService settingsService;
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private SecurityService securityService;
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private Player player;
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private TransferStatus status;
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private MediaFile currentPlayingFile;
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private float gain = AudioPlayer.DEFAULT_GAIN;
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private int offset;
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private MediaFileService mediaFileService;
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/**
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* Updates the jukebox by starting or pausing playback on the local audio device.
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*
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* @param player The player in question.
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* @param offset Start playing after this many seconds into the track.
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*/
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public synchronized void updateJukebox(Player player, int offset) throws Exception {
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User user = securityService.getUserByName(player.getUsername());
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if (!user.isJukeboxRole()) {
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LOG.warn(user.getUsername() + " is not authorized for jukebox playback.");
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return;
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}
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if (player.getPlayQueue().getStatus() == PlayQueue.Status.PLAYING) {
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this.player = player;
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MediaFile result;
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synchronized (player.getPlayQueue()) {
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result = player.getPlayQueue().getCurrentFile();
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}
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play(result, offset);
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} else {
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if (audioPlayer != null) {
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audioPlayer.pause();
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}
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}
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}
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private synchronized void play(MediaFile file, int offset) {
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InputStream in = null;
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try {
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// Resume if possible.
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boolean sameFile = file != null && file.equals(currentPlayingFile);
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boolean paused = audioPlayer != null && audioPlayer.getState() == AudioPlayer.State.PAUSED;
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if (sameFile && paused && offset == 0) {
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audioPlayer.play();
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} else {
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this.offset = offset;
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if (audioPlayer != null) {
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audioPlayer.close();
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if (currentPlayingFile != null) {
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onSongEnd(currentPlayingFile);
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}
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}
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if (file != null) {
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int duration = file.getDurationSeconds() == null ? 0 : file.getDurationSeconds() - offset;
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TranscodingService.Parameters parameters = new TranscodingService.Parameters(file, new VideoTranscodingSettings(0, 0, offset, duration, false));
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String command = settingsService.getJukeboxCommand();
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parameters.setTranscoding(new Transcoding(null, null, null, null, command, null, null, false));
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in = transcodingService.getTranscodedInputStream(parameters);
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audioPlayer = new AudioPlayer(in, this);
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audioPlayer.setGain(gain);
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audioPlayer.play();
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onSongStart(file);
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}
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}
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currentPlayingFile = file;
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} catch (Exception x) {
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LOG.error("Error in jukebox: " + x, x);
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IOUtils.closeQuietly(in);
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}
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}
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public synchronized void stateChanged(AudioPlayer audioPlayer, AudioPlayer.State state) {
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if (state == EOM) {
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player.getPlayQueue().next();
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MediaFile result;
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synchronized (player.getPlayQueue()) {
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result = player.getPlayQueue().getCurrentFile();
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}
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play(result, 0);
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}
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}
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public synchronized float getGain() {
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return gain;
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}
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public synchronized int getPosition() {
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return audioPlayer == null ? 0 : offset + audioPlayer.getPosition();
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}
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/**
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* Returns the player which currently uses the jukebox.
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*
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* @return The player, may be {@code null}.
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*/
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public Player getPlayer() {
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return player;
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}
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private void onSongStart(MediaFile file) {
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LOG.info(player.getUsername() + " starting jukebox for \"" + FileUtil.getShortPath(file.getFile()) + "\"");
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status = statusService.createStreamStatus(player);
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status.setFile(file.getFile());
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status.addBytesTransfered(file.getFileSize());
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mediaFileService.incrementPlayCount(file);
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scrobble(file, false);
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}
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private void onSongEnd(MediaFile file) {
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LOG.info(player.getUsername() + " stopping jukebox for \"" + FileUtil.getShortPath(file.getFile()) + "\"");
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if (status != null) {
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statusService.removeStreamStatus(status);
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}
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scrobble(file, true);
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}
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private void scrobble(MediaFile file, boolean submission) {
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if (player.getClientId() == null) { // Don't scrobble REST players.
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audioScrobblerService.register(file, player.getUsername(), submission, null);
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}
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}
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public synchronized void setGain(float gain) {
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this.gain = gain;
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if (audioPlayer != null) {
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audioPlayer.setGain(gain);
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}
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}
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public void setTranscodingService(TranscodingService transcodingService) {
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this.transcodingService = transcodingService;
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}
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public void setAudioScrobblerService(AudioScrobblerService audioScrobblerService) {
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this.audioScrobblerService = audioScrobblerService;
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}
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public void setStatusService(StatusService statusService) {
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this.statusService = statusService;
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}
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public void setSettingsService(SettingsService settingsService) {
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this.settingsService = settingsService;
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}
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public void setSecurityService(SecurityService securityService) {
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this.securityService = securityService;
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}
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public void setMediaFileService(MediaFileService mediaFileService) {
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this.mediaFileService = mediaFileService;
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}
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}
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