Java tutorial
/* * PS3 Media Server, for streaming any medias to your PS3. * Copyright (C) 2008 A.Brochard * * 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; version 2 * of the License only. * * 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 net.pms.dlna; import jwbroek.cuelib.*; import net.pms.PMS; import net.pms.configuration.PmsConfiguration; import net.pms.dlna.Range.Time; import net.pms.encoders.FFmpegAudio; import net.pms.encoders.MEncoderVideo; import net.pms.encoders.Player; import net.pms.formats.Format; import org.apache.commons.lang3.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import java.util.List; public class CueFolder extends DLNAResource { private static final Logger logger = LoggerFactory.getLogger(CueFolder.class); private static final PmsConfiguration configuration = PMS.getConfiguration(); private File playlistfile; public File getPlaylistfile() { return playlistfile; } private boolean valid = true; public CueFolder(File f) { playlistfile = f; setLastModified(playlistfile.lastModified()); } @Override public InputStream getInputStream() throws IOException { return null; } @Override public String getName() { return playlistfile.getName(); } @Override public String getSystemName() { return playlistfile.getName(); } @Override public boolean isFolder() { return true; } @Override public boolean isValid() { return valid; } @Override public long length() { return 0; } @Override protected void resolveOnce() { if (playlistfile.length() < 10000000) { CueSheet sheet; try { sheet = CueParser.parse(playlistfile); } catch (IOException e) { logger.info("Error in parsing cue: " + e.getMessage()); return; } if (sheet != null) { List<FileData> files = sheet.getFileData(); // only the first one if (files.size() > 0) { FileData f = files.get(0); List<TrackData> tracks = f.getTrackData(); Player defaultPlayer = null; DLNAMediaInfo originalMedia = null; ArrayList<DLNAResource> addedResources = new ArrayList<DLNAResource>(); for (int i = 0; i < tracks.size(); i++) { TrackData track = tracks.get(i); if (i > 0) { double end = getTime(track.getIndices().get(0).getPosition()); if (addedResources.isEmpty()) { // seems the first file was invalid or non existent return; } DLNAResource prec = addedResources.get(i - 1); int count = 0; while (prec.isFolder() && i + count < addedResources.size()) { // not used anymore prec = addedResources.get(i + count); count++; } prec.getSplitRange().setEnd(end); prec.getMedia().setDuration(prec.getSplitRange().getDuration()); logger.debug("Track #" + i + " split range: " + prec.getSplitRange().getStartOrZero() + " - " + prec.getSplitRange().getDuration()); } Position start = track.getIndices().get(0).getPosition(); RealFile realFile = new RealFile(new File(playlistfile.getParentFile(), f.getFile())); addChild(realFile); addedResources.add(realFile); if (i > 0 && realFile.getMedia() == null) { realFile.setMedia(new DLNAMediaInfo()); realFile.getMedia().setMediaparsed(true); } realFile.resolve(); if (i == 0) { originalMedia = realFile.getMedia(); } realFile.getSplitRange().setStart(getTime(start)); realFile.setSplitTrack(i + 1); // assign a splitter engine if file is natively supported by the renderer if (realFile.getPlayer() == null) { if (defaultPlayer == null) { /* XXX why are we creating new player instances? aren't they supposed to be singletons? TODO don't hardwire the player here; leave it to the player factory to select the right player for the resource's format e.g: defaultPlayer = PlayerFactory.getPlayer(realFile); */ if (realFile.getFormat() == null) { logger.error( "No file format known for file \"{}\", assuming it is a video for now.", realFile.getName()); /* TODO (see above): r.resolveFormat(); // sets the format based on the filename defaultPlayer = PlayerFactory.getPlayer(realFile); */ defaultPlayer = new MEncoderVideo(configuration); } else { if (realFile.getFormat().isAudio()) { defaultPlayer = new FFmpegAudio(configuration); } else { defaultPlayer = new MEncoderVideo(configuration); } } } realFile.setPlayer(defaultPlayer); } if (realFile.getMedia() != null) { try { realFile.setMedia((DLNAMediaInfo) originalMedia.clone()); } catch (CloneNotSupportedException e) { logger.info("Error in cloning media info: " + e.getMessage()); } if (realFile.getMedia() != null && realFile.getMedia().getFirstAudioTrack() != null) { if (realFile.getFormat().isAudio()) { realFile.getMedia().getFirstAudioTrack().setSongname(track.getTitle()); } else { realFile.getMedia().getFirstAudioTrack().setSongname("Chapter #" + (i + 1)); } realFile.getMedia().getFirstAudioTrack().setTrack(i + 1); realFile.getMedia().setSize(-1); if (StringUtils.isNotBlank(sheet.getTitle())) { realFile.getMedia().getFirstAudioTrack().setAlbum(sheet.getTitle()); } if (StringUtils.isNotBlank(sheet.getPerformer())) { realFile.getMedia().getFirstAudioTrack().setArtist(sheet.getPerformer()); } if (StringUtils.isNotBlank(track.getPerformer())) { realFile.getMedia().getFirstAudioTrack().setArtist(track.getPerformer()); } } } } if (tracks.size() > 0 && addedResources.size() > 0) { DLNAResource lastTrack = addedResources.get(addedResources.size() - 1); Time lastTrackSplitRange = lastTrack.getSplitRange(); DLNAMediaInfo lastTrackMedia = lastTrack.getMedia(); if (lastTrackSplitRange != null && lastTrackMedia != null) { lastTrackSplitRange.setEnd(lastTrackMedia.getDurationInSeconds()); lastTrackMedia.setDuration(lastTrackSplitRange.getDuration()); logger.debug("Track #" + childrenNumber() + " split range: " + lastTrackSplitRange.getStartOrZero() + " - " + lastTrackSplitRange.getDuration()); } } PMS.get().storeFileInCache(playlistfile, Format.PLAYLIST); } } } } private double getTime(Position p) { return p.getMinutes() * 60 + p.getSeconds() + ((double) p.getFrames() / 100); } }