001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030package org.openimaj.tools.imagecollection.collection.video;
031
032import java.io.IOException;
033import java.net.MalformedURLException;
034import java.net.URL;
035import java.text.ParseException;
036import java.util.List;
037
038import org.openimaj.tools.imagecollection.collection.ImageCollectionSetupException;
039import org.openimaj.tools.imagecollection.collection.config.ImageCollectionConfig;
040import org.openimaj.video.xuggle.XuggleVideo;
041
042import com.google.gdata.client.youtube.YouTubeService;
043import com.google.gdata.data.youtube.VideoEntry;
044import com.google.gdata.util.ServiceException;
045import com.xuggle.utils.collections.KeyValuePair;
046import com.xuggle.utils.net.URLParams;
047import com.xuggle.utils.net.YouTube;
048
049public class YouTubeVideoImageCollection extends XuggleVideoImageCollection.FromURL{
050        String developerKey = "AI39si4l2-2ZI94omuJk1U9mk5QvBFoPXbZ0Jsb5LnEtosQDSEOMR0DD5gBjlOG4kmUZ17r6cI-WBejYWvBk7oNm9U409KJjEA";
051        String gDataURLTemplate = "http://gdata.youtube.com/feeds/api/videos/%s";
052        private VideoEntry entry;
053        public YouTubeVideoImageCollection() {
054        }
055        public YouTubeVideoImageCollection(String youtubeURLStr) throws ImageCollectionSetupException {
056                String youtubeJSON = String.format("{video:{url:\"%s\"}}",youtubeURLStr);
057                ImageCollectionConfig youtubeConfig = new ImageCollectionConfig(youtubeJSON);
058                this.setup(youtubeConfig);
059        }
060
061        @Override
062        protected XuggleVideo loadXuggleVideo(String videoEntry) {
063                String youtubeId = parseYoutubeID(videoEntry);
064                
065                if(youtubeId == null) return null;
066                String youtubeFLV = YouTube.getLocation(youtubeId);
067                
068                YouTubeService service = new YouTubeService("thisinthat",developerKey);
069                URL gDataURL;
070                try {
071                        gDataURL = new URL(String.format(gDataURLTemplate, youtubeId));
072                        this.entry = service.getEntry(gDataURL, VideoEntry.class);
073                        
074                } catch (MalformedURLException e) {
075                        // TODO Auto-generated catch block
076                        e.printStackTrace();
077                } catch (IOException e) {
078                        // TODO Auto-generated catch block
079                        e.printStackTrace();
080                } catch (ServiceException e) {
081                        // TODO Auto-generated catch block
082                        e.printStackTrace();
083                }
084                
085                
086                return new XuggleVideo(youtubeFLV);
087        }
088        
089        @Override
090        public int countImages(){
091                return (int) (this.entry.getMediaGroup().getDuration() * this.video.getFPS());
092        }
093        
094        @Override 
095        public int useable(ImageCollectionConfig config){
096                if(super.useable(config) < 0) return -1;
097                String youtubeID = parseYoutubeID(config);
098                if(youtubeID == null) return -1;
099                return 1000;
100        }
101
102        private String parseYoutubeID(ImageCollectionConfig config) {
103                String urlStr;
104                try {
105                        urlStr = config.read(this.videoTag());
106                } catch (ParseException e1) {
107                        return null;
108                }
109                
110                return parseYoutubeID(urlStr);
111
112        }
113
114        private String parseYoutubeID(String urlStr) {
115//              http://www.youtube.com/watch?v=X4fRYSeIpIQ
116                URL u;
117                try {
118                        u = new URL(urlStr);
119                } catch (MalformedURLException e) {
120                        return null;
121                }
122                if(!u.getHost().matches(".*[.]youtube.com$")) return null;
123                
124                List<KeyValuePair> l = URLParams.parseQueryString(u.getQuery());
125                String foundID = null;
126                for (KeyValuePair pair : l) {
127                        if(pair.getKey().equals("v")){
128                                foundID = pair.getValue();
129                                break;
130                        }
131                }
132                return foundID;
133        }
134}