Java tutorial
/* * Created by Angel Leon (@gubatron), Alden Torres (aldenml) * Copyright (c) 2011-2016, FrostWire(R). All rights reserved. * * 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 3 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, see <http://www.gnu.org/licenses/>. */ package com.frostwire.search.youtube; import com.frostwire.search.AbstractCrawledSearchResult; import com.frostwire.search.HttpSearchResult; import com.frostwire.search.youtube.YouTubeExtractor.LinkInfo; import com.frostwire.util.StringUtils; import org.apache.commons.io.FilenameUtils; import static com.frostwire.search.youtube.YouTubeUtils.buildDownloadUrl; /** * @author gubatron * @author aldenml */ public class YouTubeCrawledSearchResult extends AbstractCrawledSearchResult implements HttpSearchResult { private final LinkInfo video; private final LinkInfo audio; private final String filename; private final String displayName; private final long creationTime; private final long size; private final String downloadUrl; private final String source; YouTubeCrawledSearchResult(YouTubeSearchResult sr, LinkInfo video, LinkInfo audio) { super(sr); this.video = video; this.audio = audio; this.filename = buildFilename(video, audio); this.displayName = FilenameUtils.getBaseName(this.filename); this.creationTime = audio != null ? audio.date.getTime() : video.date.getTime(); this.size = buildSize((int) sr.getSize(), video, audio); this.downloadUrl = buildDownloadUrl(video, audio); this.source = "YouTube - " + (audio != null ? audio.user : video.user); } public LinkInfo getVideo() { return video; } public LinkInfo getAudio() { return audio; } @Override public String getFilename() { return filename; } @Override public String getDisplayName() { return displayName; } @Override public long getCreationTime() { return creationTime; } @Override public long getSize() { return size; } @Override public String getDownloadUrl() { return downloadUrl; } @Override public String getSource() { return source; } private String buildFilename(LinkInfo video, LinkInfo audio) { String filename; if (video != null && audio == null) { filename = String.format("%s_%s_%s_%s.%s", video.filename, video.format.video, video.format.audio, video.format.quality, video.format.ext); } else if (video == null && audio != null) { String ext = audio.format.ext.equals("mp4") ? "m4a" : audio.format.ext; filename = String.format("%s_%s_%s_%s.%s", audio.filename, audio.format.video, audio.format.audio, audio.format.quality, ext); } else if (video != null && audio != null) { filename = String.format("%s_%s_%s_%s.%s", video.filename, video.format.video, audio.format.audio, video.format.quality, "mp4"); } else { throw new IllegalArgumentException("No track defined"); } return filename; } /** * Upper guess to determine the duration in bytes, using highest bitrate of the stream. * * @param durationInSeconds * @param linfo * @return (([(video bitrate)] + [(audio bitrate)])*durationInSeconds)/8 */ private long buildSize(int durationInSeconds, LinkInfo linfo) { long result = -1; double bitRateSum = 0; switch (linfo.fmt) { case 5:// new Format("flv", "H263", "MP3", "240p")); bitRateSum = 0.25 + 64d / 1024d; break; case 6://, new Format("flv", "H263", "MP3", "270p")); bitRateSum = 0.8 + 64d / 1024d; break; case 17://, new Format("3gp", "H264", "AAC", "144p")); bitRateSum = 0.05 + 24d / 1024d; break; case 18://, new Format("mp4", "H264", "AAC", "360p")); bitRateSum = 0.5 + 96d / 1024d; break; case 22://, new Format("mp4", "H264", "AAC", "720p")); bitRateSum = 2.9 + 192d / 1024d; break; case 34://, new Format("flv", "H264", "AAC", "360p")); bitRateSum = 0.5 + 128d / 1024d; break; case 35://, new Format("flv", "H264", "AAC", "480p")); bitRateSum = 1 + 128d / 1024d; break; case 36://, new Format("3gp", "H264", "AAC", "240p")); bitRateSum = 0.17 + 38d / 1024d; break; case 37://, new Format("mp4", "H264", "AAC", "1080p")); bitRateSum = 5.9 + 192d / 1024d; break; case 38://, new Format("mp4", "H264", "AAC", "3072p")); bitRateSum = 5 + 192d / 1024d; break; case 43://, new Format("webm", "VP8", "Vorbis", "360p")); bitRateSum = 0.5 + 128d / 1024d; break; case 44://, new Format("webm", "VP8", "Vorbis", "480p")); bitRateSum = 1 + 128d / 1024d; break; case 45://, new Format("webm", "VP8", "Vorbis", "720p")); bitRateSum = 2 + 192d / 1024d; break; case 46://, new Format("webm", "VP8", "Vorbis", "1080p")); bitRateSum = 3 + 192d / 1024d; break; case 82://, new Format("mp4", "H264", "AAC", "360p")); bitRateSum = 0.5 + 96d / 1024d; break; case 83://, new Format("mp4", "H264", "AAC", "240p")); bitRateSum = 0.5 + 96d / 1024d; break; case 84://, new Format("mp4", "H264", "AAC", "720p")); bitRateSum = 2.9 + 152d / 1024d; break; case 85://, new Format("mp4", "H264", "AAC", "520p")); bitRateSum = 2.9 + 152d / 1024d; break; case 100://, new Format("webm", "VP8", "Vorbis", "360p")); bitRateSum = 0.5 + 128d / 1024d; break; case 101://, new Format("webm", "VP8", "Vorbis", "360p")); bitRateSum = 1 + 192d / 1024d; break; case 102://, new Format("webm", "VP8", "Vorbis", "720p")); bitRateSum = 2 + 192d / 1024d; break; // dash video case 133://, new Format("m4v", "H264", "", "240p")); bitRateSum = 0.3 + 256d / 1024d; break; case 134://, new Format("m4v", "H264", "", "360p")); bitRateSum = 0.4 + 256d / 1024d; break; case 135://, new Format("m4v", "H264", "", "480p")); bitRateSum = 1 + 256d / 1024d; break; case 136://, new Format("m4v", "H264", "", "720p")); bitRateSum = 1.5 + 256d / 1024d; break; case 137://, new Format("m4v", "H264", "", "1080p")); bitRateSum = 2.9 + 256d / 1024d; break; // dash audio case 139://, new Format("m4a", "", "AAC", "48k")); bitRateSum = 48d / 1024d; break; case 140://, new Format("m4a", "", "AAC", "128k")); bitRateSum = 128d / 1024d; break; case 141://, new Format("m4a", "", "AAC", "256k")); bitRateSum = 256d / 1024d; break; } bitRateSum = bitRateSum * 1024 * 1024; //Mbits to bits. result = (long) (Math.ceil((bitRateSum * durationInSeconds) / 8)); return result; } private long buildSize(int durationInSeconds, LinkInfo video, LinkInfo audio) { long size = UNKNOWN_SIZE; if (durationInSeconds != UNKNOWN_SIZE) { if (video != null && audio == null) { size = buildSize(durationInSeconds, video); } else if (video == null && audio != null) { size = buildSize(durationInSeconds, audio); } else if (video != null && audio != null) { size = buildSize(durationInSeconds, video); } else { throw new IllegalArgumentException("No track defined"); } } return size; } @Override public String getThumbnailUrl() { return getBestThumbnailUrl(video != null ? video : audio); } public String getAuthor() { if (getVideo() != null) { return getVideo().user; } if (getAudio() != null) { return getAudio().user; } return ""; } private String getBestThumbnailUrl(LinkInfo linfo) { String thumbnailUrl = null; if (linfo != null && linfo.thumbnails != null) { if (!StringUtils.isNullOrEmpty(linfo.thumbnails.hq)) { thumbnailUrl = linfo.thumbnails.hq; } else if (!StringUtils.isNullOrEmpty(linfo.thumbnails.mq)) { thumbnailUrl = linfo.thumbnails.mq; } else if (!StringUtils.isNullOrEmpty(linfo.thumbnails.normal)) { thumbnailUrl = linfo.thumbnails.normal; } } return thumbnailUrl; } }